[Title 49 CFR ]
[Code of Federal Regulations (annual edition) - October 1, 1997 Edition]
[From the U.S. Government Publishing Office]


[[Page 1]]

          49



          Transportation



          PARTS 100 TO 185

                         Revised as of October 1, 1997

          CONTAINING
          A CODIFICATION OF DOCUMENTS
          OF GENERAL APPLICABILITY
          AND FUTURE EFFECT
          AS OF OCTOBER 1, 1997

          With Ancillaries
          Published by
          the Office of the Federal Register
          National Archives and Records
          Administration
          as a Special Edition of
          the Federal Register



[[Page ii]]

                                      




                     U.S. GOVERNMENT PRINTING OFFICE
                            WASHINGTON : 1997



               For sale by U.S. Government Printing Office
 Superintendent of Documents, Mail Stop: SSOP, Washington, DC 20402-9328



[[Page iii]]




                            Table of Contents



                                                                    Page
  Explanation.................................................       v

  Title 49:
      Subtitle B--Other Regulations Relating to 
                                                                                Transportation:

    Chapter I--Research and Special Programs Administration, 
        Department of Transportation..........................       5
  Finding Aids:
    Material Approved for Incorporation by Reference..........    1015
    Table of CFR Titles and Chapters..........................    1025
    Alphabetical List of Agencies Appearing in the CFR........    1041
    List of CFR Sections Affected.............................    1051



[[Page iv]]


      


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   Cite this Code:  CFR

   To cite the regulations in this volume use title, part and
   section number. Thus,  49 CFR 106.1 refers to title 49, part
   106, section 1.

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[[Page v]]



                               EXPLANATION

    The Code of Federal Regulations is a codification of the general and 
permanent rules published in the Federal Register by the Executive 
departments and agencies of the Federal Government. The Code is divided 
into 50 titles which represent broad areas subject to Federal 
regulation. Each title is divided into chapters which usually bear the 
name of the issuing agency. Each chapter is further subdivided into 
parts covering specific regulatory areas.
    Each volume of the Code is revised at least once each calendar year 
and issued on a quarterly basis approximately as follows:

Title 1 through Title 16.................................as of January 1
Title 17 through Title 27..................................as of April 1
Title 28 through Title 41...................................as of July 1
Title 42 through Title 50................................as of October 1
    The appropriate revision date is printed on the cover of each 
volume.

LEGAL STATUS

    The contents of the Federal Register are required to be judicially 
noticed (44 U.S.C. 1507). The Code of Federal Regulations is prima facie 
evidence of the text of the original documents (44 U.S.C. 1510).

HOW TO USE THE CODE OF FEDERAL REGULATIONS

    The Code of Federal Regulations is kept up to date by the individual 
issues of the Federal Register. These two publications must be used 
together to determine the latest version of any given rule.
    To determine whether a Code volume has been amended since its 
revision date (in this case, October 1, 1997), consult the ``List of CFR 
Sections Affected (LSA),'' which is issued monthly, and the ``Cumulative 
List of Parts Affected,'' which appears in the Reader Aids section of 
the daily Federal Register. These two lists will identify the Federal 
Register page number of the latest amendment of any given rule.

EFFECTIVE AND EXPIRATION DATES

    Each volume of the Code contains amendments published in the Federal 
Register since the last revision of that volume of the Code. Source 
citations for the regulations are referred to by volume number and page 
number of the Federal Register and date of publication. Publication 
dates and effective dates are usually not the same and care must be 
exercised by the user in determining the actual effective date. In 
instances where the effective date is beyond the cut-off date for the 
Code a note has been inserted to reflect the future effective date. In 
those instances where a regulation published in the Federal Register 
states a date certain for expiration, an appropriate note will be 
inserted following the text.

OMB CONTROL NUMBERS

    The Paperwork Reduction Act of 1980 (Pub. L. 96-511) requires 
Federal agencies to display an OMB control number with their information 
collection request.

[[Page vi]]

Many agencies have begun publishing numerous OMB control numbers as 
amendments to existing regulations in the CFR. These OMB numbers are 
placed as close as possible to the applicable recordkeeping or reporting 
requirements.

OBSOLETE PROVISIONS

    Provisions that become obsolete before the revision date stated on 
the cover of each volume are not carried. Code users may find the text 
of provisions in effect on a given date in the past by using the 
appropriate numerical list of sections affected. For the period before 
January 1, 1986, consult either the List of CFR Sections Affected, 1949-
1963, 1964-1972, or 1973-1985, published in seven separate volumes. For 
the period beginning January 1, 1986, a ``List of CFR Sections 
Affected'' is published at the end of each CFR volume.

INCORPORATION BY REFERENCE

    What is incorporation by reference? Incorporation by reference was 
established by statute and allows Federal agencies to meet the 
requirement to publish regulations in the Federal Register by referring 
to materials already published elsewhere. For an incorporation to be 
valid, the Director of the Federal Register must approve it. The legal 
effect of incorporation by reference is that the material is treated as 
if it were published in full in the Federal Register (5 U.S.C. 552(a)). 
This material, like any other properly issued regulation, has the force 
of law.
    What is a proper incorporation by reference? The Director of the 
Federal Register will approve an incorporation by reference only when 
the requirements of 1 CFR part 51 are met. Some of the elements on which 
approval is based are:
    (a) The incorporation will substantially reduce the volume of 
material published in the Federal Register.
    (b) The matter incorporated is in fact available to the extent 
necessary to afford fairness and uniformity in the administrative 
process.
    (c) The incorporating document is drafted and submitted for 
publication in accordance with 1 CFR part 51.
    Properly approved incorporations by reference in this volume are 
listed in the Finding Aids at the end of this volume.
    What if the material incorporated by reference cannot be found? If 
you have any problem locating or obtaining a copy of material listed in 
the Finding Aids of this volume as an approved incorporation by 
reference, please contact the agency that issued the regulation 
containing that incorporation. If, after contacting the agency, you find 
the material is not available, please notify the Director of the Federal 
Register, National Archives and Records Administration, Washington DC 
20408, or call (202) 523-4534.

CFR INDEXES AND TABULAR GUIDES

    A subject index to the Code of Federal Regulations is contained in a 
separate volume, revised annually as of January 1, entitled CFR Index 
and Finding Aids. This volume contains the Parallel Table of Statutory 
Authorities and Agency Rules (Table I), and Acts Requiring Publication 
in the Federal Register (Table II). A list of CFR titles, chapters, and 
parts and an alphabetical list of agencies publishing in the CFR are 
also included in this volume.
    An index to the text of ``Title 3--The President'' is carried within 
that volume.
    The Federal Register Index is issued monthly in cumulative form. 
This index is based on a consolidation of the ``Contents'' entries in 
the daily Federal Register.

[[Page vii]]

    A List of CFR Sections Affected (LSA) is published monthly, keyed to 
the revision dates of the 50 CFR titles.

REPUBLICATION OF MATERIAL

    There are no restrictions on the republication of material appearing 
in the Code of Federal Regulations.

INQUIRIES

    For a legal interpretation or explanation of any regulation in this 
volume, contact the issuing agency. The issuing agency's name appears at 
the top of odd-numbered pages.
    For inquiries concerning CFR reference assistance, call 202-523-5227 
or write to the Director, Office of the Federal Register, National 
Archives and Records Administration, Washington, DC 20408.

SALES

    The Government Printing Office (GPO) processes all sales and 
distribution of the CFR. For payment by credit card, call 202-512-1800, 
M-F, 8 a.m. to 4 p.m. e.s.t. or fax your order to 202-512-2233, 24 hours 
a day. For payment by check, write to the Superintendent of Documents, 
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Customer Service call 202-512-1803.

                              Raymond A. Mosley,
                                    Director,
                          Office of the Federal Register.

October 1, 1997.



[[Page ix]]



                               THIS TITLE

    Title 49--Transportation is composed of seven volumes. The parts in 
these volumes are arranged in the following order: Parts 1-99, parts 
100-185, parts 186-199, parts 200-399, parts 400-999, parts 1000-1199, 
part 1200 to End. The first volume (parts 1-99) contains current 
regulations issued under subtitle A--Office of the Secretary of 
Transportation; the second volume (parts 100-185) and the third volume 
(parts 186-199) contain the current regulations issued under chapter I--
Research and Special Programs Administration (DOT); the fourth volume 
(parts 200-399) contains the current regulations issued under chapter 
II--Federal Railroad Administration (DOT), and chapter III--Federal 
Highway Administration (DOT); the fifth volume (parts 400-999) contains 
the current regulations issued under chapter IV--Coast Guard (DOT), 
chapter V--National Highway Traffic Safety Administration (DOT), chapter 
VI--Federal Transit Administration (DOT), chapter VII--National Railroad 
Passenger Corporation (AMTRAK), and chapter VIII--National 
Transportation Safety Board; the sixth volume (parts 1000-1199) and the 
seventh volume (part 1200 to End) both contain current regulations 
issued under chapter X--Surface Transportation Board, Department of 
Transportation. The contents of these volumes represent all current 
regulations codified under this title of the CFR as of October 1, 1997.

    In the volume containing parts 100-185, see Sec. 172.101 for the 
Hazardous Materials Table, and Sec. 172.102 for the Optional Hazardous 
Materials Table. The Federal Motor Vehicle Safety Standards appear in 
part 571.

    Redesignation tables for chapter X--Surface Transportation Board, 
Department of Transportation appear in the Finding Aids section of the 
sixth and seventh volumes.

    For this volume Christopher R. Choate was the Chief Editor. The Code 
of Federal Regulations publication program is under the direction of 
Frances D. McDonald, assisted by Alomha S. Morris.

[[Page x]]




[[Page 1]]



                        TITLE 49--TRANSPORTATION




                  (This book contains parts 100 to 185)

----------------------------------------------------------------------
                                                                    Part

        SUBTITLE B--Other Regulations Relating To Transportation:

Chapter i--Research and Special Programs Administration, 
  Department of Transportation..............................         106

[[Page 3]]

        Subtitle B--Other Regulations Relating to Transportation

[[Page 5]]



CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF TRANSPORTATION




  --------------------------------------------------------------------

        SUBCHAPTER A--HAZARDOUS MATERIALS AND OIL TRANSPORTATION
Part                                                                Page
106             Rulemaking procedures.......................           7
107             Hazardous materials program procedures......          12
110             Hazardous materials public sector training 
                    and planning grants.....................          53
                    SUBCHAPTER B--OIL TRANSPORTATION
130             Oil spill prevention and response plans.....          61
              SUBCHAPTER C--HAZARDOUS MATERIALS REGULATIONS
171             General information, regulations, and 
                    definitions.............................          64
172             Hazardous materials table, special 
                    provisions, hazardous materials 
                    communications, emergency response 
                    information, and training requirements..          97
173             Shippers--general requirements for shipments 
                    and packagings..........................         353
174             Carriage by rail............................         598
175             Carriage by aircraft........................         622
176             Carriage by vessel..........................         642
177             Carriage by public highway..................         701
178             Specifications for packagings...............         723
179             Specifications for tank cars................         925
180             Continuing qualification and maintenance of 
                    packagings..............................         984

[[Page 7]]



        SUBCHAPTER A--HAZARDOUS MATERIALS AND OIL TRANSPORTATION





PART 106--RULEMAKING PROCEDURES--Table of Contents




                           Subpart A--General

Sec.
106.1  Scope.
106.3  Delegations.
106.5  Regulatory dockets.
106.7  Records.
106.9  Where to file petitions.

               Subpart B--Procedures for Adoption of Rules

106.11  General.
106.13  Initiation of rulemaking.
106.15  Contents of notices of proposed rulemaking.
106.17  Participation by interested persons.
106.19  Petitions for extension of time to comment.
106.21  Contents of written comments.
106.23  Consideration of comments received.
106.25  Additional rulemaking proceedings.
106.27  Hearings.
106.29  Adoption of final rules.
106.31  Petitions for rulemaking.
106.33  Processing of petition.
106.35  Petitions for reconsideration.
106.37  Proceedings on petitions for reconsideration.
106.38  Appeals.
106.39  Direct final rulemaking.

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.

    Source:  40 FR 31768, July 29, 1975, unless otherwise noted. 
Redesignated by Amdt. 102-1, and Amdt. 106-1, 43 FR 43306, Sept. 25, 
1978.



                           Subpart A--General



Sec. 106.1  Scope.

    This part prescribes general rulemaking procedures for the issue, 
amendment, and repeal of Hazardous Material Safety Program regulations 
of the Research and Special Programs Administration of the Department of 
Transportation.
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, as amended by Amdt. 106-13, 61 FR 51336, 
Oct. 1, 1996]



Sec. 106.3  Delegations.

    For the purposes of this part, ``Administrator'' means the 
Administrator, Research and Special Programs Administration, or his or 
her delegate.
[Amdt. 106-13, 61 FR 51336, Oct. 1, 1996]



Sec. 106.5  Regulatory dockets.

    (a) Information and data considered relevant by the Administrator 
relating to rulemaking actions, including notices of proposed 
rulemaking; comments received in response to notices; petitions for 
rulemaking and reconsideration; denials of petitions for rulemaking and 
reconsideration; records of additional rulemaking proceedings under 
Sec. 106.25; and final regulations are maintained by the Research and 
Special Programs Administration at 400 7th Street, SW., Washington, DC 
20590-0001.
    (b) Any person may examine any docketed material at the offices of 
the Research and Special Programs Administration at any time during 
regular business hours after the docket is established, except material 
which the Administrator determines should be withheld from public 
disclosure under applicable provisions of any statute administered by 
the Administrator and Section 552(b) of title 5, United States Code, and 
may obtain a copy of it upon payment of a fee.
[40 FR 31768, July 29, 1975. Redesignated by Amdts. 102-1 and 106-1, 43 
FR 43306, Sept. 25, 1978, and amended by Amdt. 106-3, 45 FR 81571, Dec. 
11, 1980; Amdt. 106-7, 55 FR 39978, Oct. 1, 1990]



Sec. 106.7  Records.

    Records of the Research and Special Programs Administration relating 
to rulemaking proceedings are available for inspection as provided in 
section 552(b) of title 5, United States Code, and part 7 of the 
Regulations of the Office of the Secretary of Transportation (part 7 of 
this title).



Sec. 106.9  Where to file petitions.

    Petitions for extension of time to comment submitted under 
Sec. 106.19, petitions for hearings submitted under Sec. 106.27, 
petitions for rulemaking submitted under Sec. 106.31, and petitions for

[[Page 8]]

reconsideration submitted under Sec. 106.35 must be submitted to: 
Administrator, Research and Special Programs Administration, U.S. 
Department of Transportation, 400 7th Street, SW., Washington, DC 20590-
0001.
[40 FR 31768, July 29, 1975. Redesignated by Amdts. 102-1 and 106-1, 43 
FR 43306, Sept. 25, 1978, and amended by Amdt. 106-3, 45 FR 81571, Dec. 
11, 1980; Amdt. 106-7, 55 FR 39978, Oct. 1, 1990]



               Subpart B--Procedures for Adoption of Rules



Sec. 106.11  General.

    Unless the Administrator, for good cause, finds that notice is 
impracticable, unnecessary, or contrary to the public interest, and 
incorporates that finding and a brief statement of the reasons for it in 
the rule, a notice of proposed rulemaking is issued and interested 
persons are invited to participate in the rulemaking proceedings with 
respect to each substantive rule.



Sec. 106.13  Initiation of rulemaking.

    The Administrator initiates rulemaking on his or her own motion; 
however, in so doing, the Administrator may use discretion to consider 
the recommendations of other agencies of the United States or of other 
interested persons, including those of any technical advisory body 
established by statute for that purpose.
[Amdt. 106-13, 61 FR 51336, Oct. 1, 1996]



Sec. 106.15  Contents of notices of proposed rulemaking.

    (a) Each notice of proposed rulemaking is published in the Federal 
Register, unless all persons subject to it are named and are personally 
served with a copy of it.
    (b) Each notice, whether published in the Federal Register or 
personally served, includes:
    (1) A statement of the time, place, and nature of the proposed 
rulemaking proceeding;
    (2) A reference to the authority under which it is issued;
    (3) A description of the subjects and issues involved or the 
substance and terms of the proposed regulation;
    (4) A statement of the time within which written comments must be 
submitted; and
    (5) A statement of how and to what extent interested persons may 
participate in the proceeding.



Sec. 106.17  Participation by interested persons.

    (a) Any interested person may participate in rulemaking proceedings 
by submitting comments in writing containing information, views or 
arguments in accordance with instructions for participation in the 
rulemaking document.
    (b) The Administrator may invite any interested person to 
participate in the rulemaking proceedings described in Sec. 106.25.
    (c) For the purposes of this part, an interested person includes any 
Federal or State government agency or any political subdivision of a 
State (as defined in Sec. 107.201(b) of this subchapter).
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, and amended by Amdt. 106-4, 48 FR 2651, 
Jan. 20, 1983; Amdt. 106-11, 61 FR 30180, June 14, 1996; Amdt. 106-13, 
61 FR 51336, Oct. 1, 1996]



Sec. 106.19  Petitions for extension of time to comment.

    A petition for extension of the time to submit comments must be 
received not later than 10 days before expiration of the time stated in 
the notice. It is requested, but not required, that three copies be 
submitted. The filing of the petition does not automatically extend the 
time for petitioner's comments. A petition is granted only if the 
petitioner shows good cause for the extension, and if the extension is 
consistent with the public interest. If an extension is granted, it is 
granted to all persons, and it is published in the Federal Register.



Sec. 106.21  Contents of written comments.

    All written comments must be in English. It is requested, but not 
required, that five copies be submitted. Any interested person should 
submit as part of written comments all material considered relevant to 
any statement of fact. Incorporation of material by reference should be 
avoided; however,

[[Page 9]]

where necessary, such incorporated material shall be identified by 
document title and page.
[Amdt. 106-13, 61 FR 51336, Oct. 1, 1996]



Sec. 106.23  Consideration of comments received.

    All timely comments and the recommendations of any technical 
advisory body established by statute for the purpose of reviewing the 
proposed rule concerned are considered before final action is taken on a 
rulemaking proposal. Late filed comments are considered so far as 
practicable.



Sec. 106.25  Additional rulemaking proceedings.

    The Administrator may initiate any further rulemaking proceedings 
that the Administrator finds necessary or desirable. For example, 
interested persons may be invited to make oral arguments, to participate 
in conferences between the Administrator or the Administrator's 
representative and interested persons at which minutes of the conference 
are kept, to appear at informal hearings presided over by officials 
designated by the Administrator at which a transcript of minutes are 
kept, or participate in any other proceeding to assure informed 
administrative action and to protect the public interest.
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, as amended by Amdt. 106-13, 61 FR 51336, 
Oct. 1, 1996]



Sec. 106.27  Hearings.

    (a) If a notice of proposed rulemaking does not provide for a 
hearing, any interested person may petition the Administrator for an 
informal hearing. The petition must be received by the Administrator not 
later than 20 days before expiration of the time stated in the notice. 
The filing of the petition does not automatically result in the 
scheduling of a hearing. A petition is granted only if the petitioner 
shows good cause for a hearing. If a petition for a hearing is granted, 
notice of the hearing is published in the Federal Register.
    (b) Sections 556 and 557 of title 5, United States Code, do not 
apply to hearings held under this part. Unless otherwise specified, 
hearings held under this part are informal, nonadversary, fact-finding 
proceedings, at which there are not formal pleadings or adverse parties. 
Any regulation issued in a case in which an informal hearing is held is 
not necessarily based exclusively on the record of the hearing.
    (c) The Administrator designates a representative to conduct any 
hearing held under this part. The Chief Counsel designates a member of 
his or her staff to serve as legal officer at the hearing.
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, as amended by Amdt. 106-13, 61 FR 51336, 
Oct. 1, 1996]



Sec. 106.29  Adoption of final rules.

    Final rules are prepared by representatives of the Office of 
Hazardous Materials Safety concerned and the Office of the Chief 
Counsel. The regulation is then submitted to the Administrator for 
consideration. If the Administrator adopts the regulation, it is 
published in the Federal Register, unless all persons subject to it are 
named and are personally served with a copy of it.
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, as amended by Amdt. 106-13, 61 FR 51336, 
Oct. 1, 1996]



Sec. 106.31  Petitions for rulemaking.

    (a) Any interested person may petition the Associate Administrator 
for Hazardous Materials Safety to establish, amend, or repeal a 
substantive regulation, or may petition the Chief Counsel to establish, 
amend, or repeal a procedural regulation in parts 106 or 107.
    (b) Each petition filed under this section must--
    (1) Summarize the proposed action and explain its purpose;
    (2) State the text of the proposed rule or amendment, or specify the 
rule proposed to be repealed;
    (3) Explain the petitioner's interest in the proposed action and the 
interest of any party the petitioner represents; and
    (4) Provide information and arguments that support the proposed 
action, including relevant technical, scientific or other data as 
available to the petitioner, and any specific known

[[Page 10]]

cases that illustrate the need for the proposed action.
    (c) If the potential impact of the proposed action is substantial, 
and information and data related to that impact are available to the 
petitioner, the Associate Administrator for Hazardous Materials Safety 
or the Chief Counsel may request the petitioner to provide--
    (1) The costs and benefits to society and identifiable groups within 
society, quantifiable and otherwise;
    (2) The direct effects (including preemption effects) of the 
proposed action on States, on the relationship between the Federal 
Government and the States, and on the distribution of power and 
responsibilities among the various levels of government;
    (3) The regulatory burden on small businesses, small organizations 
and small governmental jurisdictions;
    (4) The recordkeeping and reporting requirements and to whom they 
would apply; and
    (5) Impacts on the quality of the natural and social environments.
    (d) The Associate Administrator for Hazardous Materials Safety or 
Chief Counsel may return a petition that does not comply with the 
requirements of this section, accompanied by a written statement 
indicating the deficiencies in the petition.
[Amdt. 106-11, 61 FR 30180, June 14, 1996, as amended by Amdt. 106-13, 
61 FR 51336, Oct. 1, 1996]



Sec. 106.33  Processing of petition.

    (a) General. Unless the Associate Administrator or the Chief Counsel 
otherwise specifies, no public hearing, argument, or other proceeding is 
held directly on a petition before its disposition under this section.
    (b) Grants. If the Associate Administrator or the Chief Counsel 
determines that the petition contains adequate justification, he or she 
initiates rulemaking action under this subpart.
    (c) Denials. If the Associate Administrator or the Chief Counsel 
determines that the petition does not justify rulemaking, the petition 
is denied.
    (d) Notification. The Associate Administrator or the Chief Counsel 
will notify a petitioner, in writing, of the decision to grant or deny a 
petition for rulemaking.
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, as amended by Amdt. 106-11, 61 FR 30181, 
June 14, 1996; Amdt. 106-13, 61 FR 51336, Oct. 1, 1996]



Sec. 106.35  Petitions for reconsideration.

    (a) Except as provided in Sec. 106.39(d), any interested person may 
petition the Associate Administrator for reconsideration of any 
regulation issued under this part, or may petition the Chief Counsel for 
reconsideration of any procedural regulation issued under this part and 
contained in this part or in Part 107 of this Chapter. It is requested, 
but not required, that three copies be submitted. The petition must be 
received not later than 30 days after publication of the rule in the 
Federal Register. Petitions filed after that time will be considered as 
petitions filed under Sec. 106.31. The petition must contain a brief 
statement of the complaint and an explanation as to why compliance with 
the rule is not practicable, is unreasonable, or is not in the public 
interest.
    (b) If the petitioner requests the consideration of additional 
facts, the petitioner must state the reason they were not presented to 
the Associate Administrator or the Chief Counsel within the prescribed 
time.
    (c) The Associate Administrator or the Chief Counsel does not 
consider repetitious petitions.
    (d) Unless the Associate Administrator or the Chief Counsel 
otherwise provides, the filing of a petition under this section does not 
stay the effectiveness of the rule.
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, as amended by Amdt. 106-11, 61 FR 30181, 
June 14, 1996; Amdt. 106-13, 61 FR 51337, Oct. 1, 1996]



Sec. 106.37  Proceedings on petitions for reconsideration.

    (a) The Associate Administrator or the Chief Counsel may grant or 
deny, in whole or in part, any petition for reconsideration without 
further proceedings, except where a grant of the petition would result 
in issuance of a new

[[Page 11]]

final rule. In the event that the Associate Administrator or the Chief 
Counsel determines to reconsider any regulation, a final decision on 
reconsideration may be issued without further proceedings, or an 
opportunity to submit comment or information and data as deemed 
appropriate may be provided. Whenever the Associate Administrator or the 
Chief Counsel determines that a petition should be granted or denied, 
the Office of the Chief Counsel prepares a notice of the grant or denial 
of a petition for reconsideration, for issuance to the petitioner, and 
the Associate Administrator or the Chief Counsel issues it to the 
petitioner. The Associate Administrator or the Chief Counsel may 
consolidate petitions relating to the same rules.
    (b) It is the policy of the Associate Administrator or the Chief 
Counsel to issue notice of the action taken on a petition for 
reconsideration within 90 days after the date on which the regulation in 
question is published in the Federal Register, unless it is found 
impracticable to take action within that time. In cases where it is so 
found and the delay beyond that period is expected to be substantial, 
notice of that fact and the date by which it is expected that action 
will be taken is issued to the petitioner and published in the Federal 
Register.
[40 FR 31768, July 29, 1975. Redesignated by Amdt. 102-1, and Amdt. 106-
1, 43 FR 43306, Sept. 25, 1978, as amended by Amdt. 106-11, 61 FR 30181, 
June 14, 1996; Amdt. 106-13, 61 FR 51337, Oct. 1, 1996]



Sec. 106.38  Appeals.

    (a) Any interested person may appeal a decision of the Associate 
Administrator or the Chief Counsel, issued under Sec. 106.33 or 
Sec. 106.37, to the Administrator.
    (b) An appeal must be received within 20 days of service of written 
notice to petitioner of the Associate Administrator's or the Chief 
Counsel's decision, or within 20 days from the date of publication of 
the decision in the Federal Register, and should set forth the contested 
aspects of the decision as well as any new arguments or information.
    (c) It is requested, but not required, that three copies of the 
appeal be submitted to the Administrator.
    (d) Unless the Administrator otherwise provides, the filing of an 
appeal under this section does not stay the effectiveness of any rule.
[Amdt. 106-11, 61 FR 30181, June 14, 1996]



Sec. 106.39  Direct final rulemaking.

    (a) Where practicable, the Administrator will use direct final 
rulemaking to issue the following types of rules:
    (1) Minor, substantive changes to regulations;
    (2) Incorporation by reference of the latest edition of technical or 
industry standards;
    (3) Extensions of compliance dates; and
    (4) Other noncontroversial rules where the Administrator determines 
that use of direct final rulemaking is in the public interest, and that 
a regulation is unlikely to result in adverse comment.
    (b) The direct final rule will state an effective date. The direct 
final rule will also state that unless an adverse comment or notice of 
intent to file an adverse comment is received within the specified 
comment period, generally 60 days after publication of the direct final 
rule in the Federal Register, the Administrator will issue a 
confirmation document, generally within 15 days after the close of the 
comment period, advising the public that the direct final rule will 
either become effective on the date stated in the direct final rule or 
at least 30 days after the publication date of the confirmation 
document, whichever is later.
    (c) For purposes of this section, an adverse comment is one which 
explains why the rule would be inappropriate, including a challenge to 
the rule's underlying premise or approach, or would be ineffective or 
unacceptable without a change. Comments that are frivolous or 
insubstantial will not be considered adverse under this procedure. A 
comment recommending a rule change in addition to the rule will not be 
considered an adverse comment, unless the commenter states why the rule 
would be ineffective without the additional change.
    (d) Only parties who filed comments to a direct final rule issued 
under this section may petition under Sec. 106.35 for

[[Page 12]]

reconsideration of that direct final rule.
    (e) If an adverse comment or notice of intent to file an adverse 
comment is received, a timely document will be published in the Federal 
Register advising the public and withdrawing the direct final rule in 
whole or in part. The Administrator may then incorporate the adverse 
comment into a subsequent direct final rule or may publish a notice of 
proposed rulemaking. A notice of proposed rulemaking will provide an 
opportunity for public comment, generally a minimum of 60 days, and will 
be processed in accordance with Secs. 106.11-106.29.
[Amdt. 106-11, 61 FR 30181, June 14, 1996]



PART 107--HAZARDOUS MATERIALS PROGRAM PROCEDURES--Table of Contents




                      Subpart A--General Provisions

Sec.
107.1  Purpose and scope.
107.3  Definitions.
107.5  Request for confidential treatment.
107.7  Service of process on non-residents of the United States.
107.9  Public docket room.
107.11  Service.
107.13  Subpoenas, witness fees.
107.14  Availability of informal guidance and interpretive assistance.

                          Subpart B--Exemptions

107.101  Purpose and scope.
107.105  Application for exemption.
107.107  Application for party status.
107.109  Application for renewal.
107.111  Withdrawal.
107.113  Application processing and evaluation.
107.117  Emergency processing.
107.121  Modification, suspension or termination of exemption or grant 
          of party status.
107.123  Reconsideration.
107.125  Appeal.
107.127  Availability of documents for public inspection.

                          Subpart C--Preemption

107.201  Purpose and scope.
107.202  Standards for determining preemption.

                        Preemption Determinations

107.203  Application.
107.205  Notice.
107.207  Processing.
107.209  Determination.
107.211  Petition for reconsideration.
107.213  Judicial review.

                   Waiver of Preemption Determinations

107.215  Application.
107.217  Notice.
107.219  Processing.
107.221  Determination.
107.223  Petition for reconsideration.
107.227  Judicial Review.

                         Subpart D--Enforcement

107.301  Delegated authority for enforcement.
107.303  Purpose and scope.
107.305  Investigations.

                  Compliance Orders and Civil Penalties

107.307  General.
107.309  Warning letters.
107.310  Ticketing.
107.311  Notice of probable violation.
107.313  Reply.
107.315  Admission of violations.
107.317  Informal response.
107.319  Request for a hearing.
107.321  Hearing.
107.323  ALJ's decision.
107.325  Appeals.
107.327  Compromise and settlement.
107.329  Maximum penalties.
107.331  Assessment considerations.

                           Criminal Penalties

107.333  Criminal penalties generally.
107.335  Referral for prosecution.
107.336  Limitation on fines and penalties.

                            Injunctive Action

107.337  Injunctions generally.
107.339  Imminent hazards.

Appendix A to Subpart D of Part 107--Guidelines for Civil Penalties

      Subpart E--Designation of Approval and Certification Agencies

107.401  Purpose and scope.
107.402  Application for designation as an approval or certification 
          agency.
107.403  Designation of approval agencies.
107.404  Conditions of designation.
107.405  Termination of designation.

   Subpart F--Registration of Cargo Tank and Cargo Tank Motor Vehicle 
   Manufacturers and Repairers and Cargo Tank Motor Vehicle Assemblers

107.501  Scope.
107.502  General registration requirements.
107.503  Registration statement.
107.504  Period of registration, updates, and record retention.

[[Page 13]]

  Subpart G--Registration of Persons Who Offer or Transport Hazardous 
                                Materials

107.601  Applicability.
107.606  Exceptions.
107.608  General registration requirements.
107.612  Amount of fee.
107.616  Payment procedures.
107.620  Recordkeeping requirements.

           Subpart H--Approvals, Registrations and Submissions

107.701  Purpose and scope.
107.705  Registrations, reports, and applications for approval.
107.709  Processing of an application for approval, including an 
          application for renewal or modification.
107.711  Withdrawal.
107.713  Approval modification, suspension or termination.
107.715  Reconsideration.
107.717  Appeal.

    Authority:  49 U.S.C. 5101-5127, 44701; Sec. 212-213, Pub. L. 104-
121, 110 Stat. 857; 49 CFR 1.45, 1.53.



                      Subpart A--General Provisions



Sec. 107.1  Purpose and scope.

    (a) This part prescribes procedures utilized by the Research and 
Special Programs Administration, the Associate Administrator for 
Hazardous Materials Safety and the Office of Chief Counsel in carrying 
out their duties under the laws pertaining to the transportation of 
hazardous materials.
    (b) This subpart defines certain terms and prescribes procedures 
that are applicable to each proceeding described in this part.
[40 FR 48470, Oct. 15, 1975, as amended by Amdt. 107-4, 43 FR 43307, 
Sept. 25, 1978; Amdt. 107-23, 56 FR 66156, Dec. 20, 1991]



Sec. 107.3  Definitions.

    All terms defined in 49 U.S.C. 5102 are used in their statutory 
meaning. Other terms used in this part are defined as follows:
    Acting knowingly means acting or failing to act while
    (1) Having actual knowledge of the facts giving rise to the 
violation, or
    (2) Having the knowledge that a reasonable person acting in the same 
circumstances and exercising due care would have had.
    Administrator means the Administrator, Research and Special Programs 
Administration.
    Applicant means the person in whose name an exemption, approval, 
registration, a renewed or modified exemption or approval, or party 
status to an exemption is requested to be issued.
    Application means a request under subpart B of this part for an 
exemption, a renewal or modification of an exemption, party status to an 
exemption, or a request under subpart H of this part for an approval, or 
renewal or modification of an approval.
    Approval means a written authorization, including a competent 
authority approval, from the Associate Administrator to perform a 
function for which prior authorization by the Associate Administrator is 
required under subchapter C of this chapter.
    Approval Agency means an organization or a person designated by the 
RSPA to certify packagings as having been designed, manufactured, 
tested, modified, marked or maintained in compliance with applicable DOT 
regulations.
    Associate Administrator means the Associate Administrator for 
Hazardous Materials Safety, Research and Special Programs 
Administration.
    Competent Authority means a national agency responsible under its 
national law for the control or regulation of a particular aspect of the 
transportation of hazardous materials (dangerous goods). The term 
Appropriate authority, as used in the ICAO Technical Instructions, has 
the same meaning as Competent Authority. The Associate Administrator for 
Hazardous Materials Safety, Research and Special Programs 
Administration, is the United States Competent Authority for purposes of 
this part.
    Competent Authority Approval means an approval by the competent 
authority which is required under the provisions of an international 
standard, such as the International Civil Aviation Organization's 
Technical Instructions for the Safe Transport of Dangerous Goods by Air 
or the International Maritime Dangerous Goods Code. To the extent that 
it satisfies the requirement of the international standard, any of the 
following may serve as

[[Page 14]]

a competent authority approval: a specific regulation of this subchapter 
or subchapter C of this chapter, an exemption or approval issued under 
the provisions of this subchapter or subchapter C of this chapter, or a 
separate document issued to one or more persons by the Associate 
Administrator.
    Exemption means a document issued under the authority of 49 U.S.C. 
5117 by the Associate Administrator that authorizes a person to perform 
a function that is not otherwise authorized under this subchapter, 
subchapter C, or other regulations issued under 49 U.S.C. 5101-5127 
(e.g., Federal Highway Administration routing).
    Federal hazardous material transportation law means 49 U.S.C. 5101 
et seq.
    Filed means received at the Research and Special Programs 
Administration office designated in the applicable provision or, if no 
office is specified, at the Office of Hazardous Materials Exemptions and 
Approvals (DHM-30), Research and Special Programs Administration, U.S. 
Department of Transportation, 400 7th Street SW., Washington DC, 20590-
0001.
    Holder means the person in whose name an exemption or approval has 
been issued.
    Imminent Hazard means the existence of a condition which presents a 
substantial likelihood that death, serious illness, severe personal 
injury, or substantial endangerment to health, property, or the 
environment may occur before the reasonably foreseeable completion of an 
administrative hearing or other formal proceeding initiated to abate the 
risks of those effects.
    Incident means an event resulting in the unintended and 
unanticipated release of a hazardous material or an event meeting 
incident reporting requirements in Sec. 171.15 or Sec. 171.16 of this 
chapter.
    Indian Tribe shall have the meaning given that term under section 4 
of the Indian Self-Determination and Education Act (25 U.S.C. 450b).
    Investigation includes investigations authorized under 49 U.S.C. 
5121 and inspections authorized under 49 U.S.C. 5118 and 5121.
    Manufacturing exemption means an exemption from compliance with 
specified requirements that otherwise must be met before representing, 
marking, certifying (including requalifying, inspecting, and testing), 
selling or offering a packaging or container as meeting the requirements 
of subchapter C of this chapter governing its use in the transportation 
in commerce of a hazardous material. A manufacturing exemption is an 
exemption issued to a manufacturer of packagings who does not offer for 
transportation or transport hazardous materials in packagings subject to 
the exemption.
    Party means a person, other than a holder, authorized to act under 
the terms of an exemption.
    Person means an individual, firm, copartnership, corporation, 
company, association, joint-stock association, including any trustee, 
receiver, assignee, or similar representative thereof, or government, 
Indian tribe, or agency or instrumentality of any government or Indian 
tribe when it offers hazardous materials for transportation in commerce 
or transports hazardous materials in furtherance of a commercial 
enterprise, but such term does not include:
    (1) The United States Postal Service, or
    (2) For the purposes of 49 U.S.C. 5123 and 5124, any agency or 
instrumentality of the Federal Government.
    Registration means a written acknowledgment from the Associate 
Administrator that a registrant is authorized to perform a function for 
which registration is required under subchapter C of this chapter (e.g., 
registration with RSPA as a cylinder retester pursuant to 49 CFR 
173.34(e)(1), or registration in accordance with 49 CFR 178.503 
regarding marking of packagings). For purposes of subparts A through E, 
``registration'' does not include registration under subpart F or G of 
this part.
    Report means information, other than an application, registration or 
part thereof, required to be submitted to the Associate Administrator 
pursuant to this subchapter, subchapter B or subchapter C of this 
chapter.
    Respondent means a person upon whom the RSPA has served a notice of 
probable violation.
    State means a State of the United States, the District of Columbia, 
the

[[Page 15]]

Commonwealth of Puerto Rico, the Commonwealth of the Northern Mariana 
Islands, the Virgin Islands, American Samoa, Guam, or any other 
territory or possession of the United States designated by the 
Secretary; except that as used in 49 U.S.C. 5119, relating to uniformity 
of State registration and permitting forms and procedures, such term 
means a State of the United States and the District of Columbia.
    Transports or transportation means any movement of property by any 
mode, and any loading, unloading, or storage incidental thereto.
[Amdt. 107-3, 41 FR 38170, Sept. 9, 1976, as amended by Amdt. 107-4, 43 
FR 43307, Sept. 25, 1978; Amdt. 107-5, 43 FR 48642, Oct. 19, 1978; Amdt. 
107-8, 46 FR 9888, Jan. 29, 1981; Amdt. 107-12, 48 FR 53711, Nov. 29, 
1983; 50 FR 45730, Nov. 1, 1985; Amdt. 107-24, 56 FR 8621, Feb. 28, 
1991; Amdt. 107-23, 56 FR 66157, Dec. 20, 1991; Amdt. 107-32, 59 FR 
49130, Sept. 26, 1994; Amdt. 107-38, 61 FR 21094, May 9, 1996]



Sec. 107.5  Request for confidential treatment.

    (a) If any person filing a document with the Associate Administrator 
claims that some or all the information contained in the document is 
exempt from the mandatory public disclosure requirements of the Freedom 
of Information Act (5 U.S.C. 552), is information referred to in 18 
U.S.C. 1905, or is otherwise exempt by law from public disclosure, and 
if that person requests the Associate Administrator not to disclose the 
information, that person shall file, together with the document, a 
second copy of the document with the confidential information deleted. 
The person shall indicate each page of the original document that is 
confidential or contains confidential information by marking or stamping 
``confidential'' on each page for which a claim of confidentiality is 
made, and may file a statement specifying the justification for the 
claim of confidentiality. If the person states that the information 
comes within the exception in 5 U.S.C. 552(b)(4) for trade secrets and 
commercial or financial information, that person shall include a 
statement as to why the information is privileged or confidential. If 
the person filing a document does not mark or stamp a document as 
confidential or submit a second copy of the document with the 
confidential information deleted, the Associate Administrator may assume 
that there is no objection to public disclosure of the document in its 
entirety.
    (b) The Associate Administrator retains the right to make its own 
determination with regard to any claim of confidentiality. Notice of a 
decision by the Associate Administrator to deny the claim, in whole or 
in part, and an opportunity to respond shall be given to a person 
claiming confidentiality of information no less than five days prior to 
its public disclosure.
[40 FR 48470, Oct. 15, 1975, as amended by Amdt. 107-24, 56 FR 8621, 
Feb. 28, 1991; Amdt. 107-38, 61 FR 21095, May 9, 1996]



Sec. 107.7  Service of process on non-residents of the United States.

    (a) Designation of agent for service. When a person who is not a 
resident of the United States is required by this subchapter or 
subchapter C of this chapter to designate a permanent resident of the 
United States as his agent upon whom service of process may be made for 
him and on his behalf, the agent may be an individual, a firm, or a 
domestic corporation. Any number of principals may designate the same 
person as agent. A designation is binding on a principal even if the 
designation is not in compliance with all the requirements of this 
section, until rejected by the Associate Administrator for Hazardous 
Materials Safety. A designated agent may not assign performance of his 
functions under the designation to another person.
    (b) Form and contents of designation. The designation shall:
    (1) Be in writing and dated;
    (2) Be made in the legal form required to make it valid and binding 
on the principal under the laws, corporate bylaws, or other requirements 
governing the making of the designation by the principal at the place 
and time where it is made and the person or persons signing the 
designation shall certify that it is so made;
    (3) State the full legal name, principal name of business and 
mailing address of the principal;
    (4) Provide that it remains in effect until withdrawn or replaced by 
the principal;

[[Page 16]]

    (5) State the legal name and mailing address of the agent; and
    (6) Bear a declaration of acceptance duly signed by the designated 
agent.
    (c) Method of service. Service of any process, notice, order, 
decision, or requirement of the Associate Administrator for Hazardous 
Materials Safety may be made by registered or certified mail addressed 
to the agent with return receipt requested or in any other manner 
authorized by law. If service cannot be effected because the agent has 
died (or, if a firm or a corporation ceases to exist) or moved, or 
otherwise does not receive correctly addressed mail, service may be made 
by publication in the Federal Register.
[Amdt. 107-2, 41 FR 7509, Feb. 19, 1976, as amended by Amdt. 107-24, 56 
FR 8621, Feb. 28, 1991]



Sec. 107.9  Public docket room.

    There is established in the RSPA offices at 400 7th Street, SW., 
Washington, DC, a public docket room in which there is available for 
public inspection and copying:
    (a) Copies of notices of proposed rulemaking issued by the RSPA or 
its predecessor agency, including advance notices, together with the 
comments received thereon during rulemaking proceedings, copies of any 
related Federal Register notices, final rules, petitions for 
reconsideration, and decisions issued in response to petitions for 
reconsideration;
    (b) Applications for exemptions from the Department of 
Transportation's regulations governing the transportation of hazardous 
materials, including supporting data, memoranda of any informal meetings 
with applicants, related Federal Register notices, comments received 
thereon during the public comment period and copies of decisions issued 
granting or denying applications for exemptions;
    (c) Applications for preemption and waiver of preemption 
determinations under subpart C of this part, together with the comments 
received thereon, related documents filed with the RSPA, copies of 
related Federal Register notices, and rulings, determinations and orders 
issued in response to those applications;
    (d) Records of compliance order proceedings and copies of RSPA 
compliance orders;
    (e) Appeals filed under this part and RSPA decisions issued in 
response to those appeals; and
    (f) Such other information pertaining to the RSPA's hazardous 
materials program required by statute to be made available for public 
inspection and copying and any information which the RSPA determines 
should be made available to the public.
[Amdt. 107-3, 41 FR 38170, Sept. 9, 1976, as amended by Amdt. 107-8, 45 
FR 81571, Dec. 11, 1980; Amdt. 107-24, 56 FR 8622, Feb. 28, 1991]



Sec. 107.11  Service.

    (a) Each order, notice, or other document required to be served 
under this part shall be served personally or by registered or certified 
mail, except as otherwise provided.
    (b) Service upon a person's duly authorized representative 
constitutes service upon that person.
    (c) Service by registered or certified mail is complete upon 
mailing. An official United States Postal Service receipt from the 
registered or certified mailing constitutes prima facie evidence of 
service.
[Amdt. 107-3, 41 FR 38170, Sept. 9, 1976]



Sec. 107.13  Subpoenas, witness fees.

    (a) The Administrator, RSPA, the Chief Counsel, Research and Special 
Programs Administration, or the Official designated to preside over a 
hearing convened in accordance with this part, may sign and issue 
subpoenas either on his own initiative or, upon an adequate showing that 
the information sought will materially advance the proceeding, upon the 
request of any person participating in that proceeding.
    (b) A subpoena may require the attendance of a witness, or the 
production of documentary or other tangible evidence in the possession 
or under the control of the person served, or both.
    (c) A subpoena may be served personally by any person who is not an 
interested person and is not less than 18 years of age, or by certified 
or registered mail.
    (d) Service of a subpoena upon the person named therein shall be 
made by

[[Page 17]]

delivering a copy of the subpoena to such person and by tendering the 
fees for one day's attendance and mileage as specified by paragraph (f) 
of this section. When a subpoena is issued at the instance of any 
officer or agency of the United States, fees and mileage need not be 
tendered at the time of service. Delivery of a copy of a subpoena and 
tender of the fees to a natural person may be made by handing them to 
the person, leaving them at his office with the person in charge 
thereof, leaving them at his dwelling place or usual place of abode with 
some person of suitable age and discretion then residing therein, by 
mailing them by registered or certified mail to him at his last known 
address, or by any method whereby actual notice is given to him and the 
fees are made available prior to the return date. When the person to be 
served is not a natural person, delivery of a copy of the subpoena and 
tender of the fees may be effected by handing them to a registered agent 
for service, or to any officer, director, or agent in charge of any 
office of the person, or by mailing them by registered or certified mail 
to that representative at his last known address or by any method 
whereby actual notice is given to the representative and the fees are 
made available prior to the return date.
    (e) The original subpoena bearing a certificate of service shall be 
filed with the RSPA official having responsibility for the proceeding in 
connection with which the subpoena was issued.
    (f) A witness subpoenaed by the RSPA shall be paid the same fees and 
mileage as would be paid to a witness in a proceeding in the district 
courts of the United States. The witness fees and mileage shall be paid 
by the person at whose instance the subpoena was issued.
    (g) Notwithstanding the provisions of paragraph (f) of this section, 
and upon request, the witness fees and mileage may be paid by the RSPA 
if the RSPA official who issued the subpoena determines on the basis of 
good cause shown, that:
    (1) The presence of the subpoenaed witness will materially advance 
the proceeding; and
    (2) The person at whose instance the subpoena was issued would 
suffer a serious hardship if required to pay the witness fees and 
mileage.
    (h) Any person to whom a subpoena is directed may apply no later 
than 10 days after service thereof, to the person who issued the 
subpoena to quash or modify it. The application shall contain a brief 
statement of the reasons relied upon in support of the action sought 
therein. The person who issued the subpoena may:
    (1) Deny the application;
    (2) Quash or modify the subpoena; or
    (3) Condition denial of the application to quash or modify the 
subpoena upon the satisfaction of certain just and reasonable 
requirements. The denial may be summary.
    (i) If there is a refusal to obey a subpoena served upon any person 
under the provisions of this section, the RSPA may request the Attorney 
General to seek the aid of the United States District Court for any 
District in which the person is found to compel that person, after 
notice, to appear and give testimony, or to appear and produce the 
subpoenaed documents before the RSPA, or both.
[Amdt. 107-3, 41 FR 38170, Sept. 9, 1976, as amended by Amdt. 107-11, 48 
FR 2651, Jan. 20, 1983]



Sec. 107.14  Availability of informal guidance and interpretive assistance.

    (a) Availability of telephonic and Internet assistance. (1) RSPA has 
a toll-free, telephonic information line which provides answers to 
inquiries by small entities and other parties concerning information on 
and advice about compliance with the hazardous materials regulations, 49 
CFR parts 171-180. The information line is staffed from 9:00 a.m. 
through 4:00 p.m., Eastern time, Monday through Friday, except Federal 
holidays. When the information line is not staffed, callers leave a 
recorded message, which will be answered by the next business day. The 
telephone numbers for the information line are: 1-800-467-4922 (that is; 
1-800-HMR49-22 toll free), or 202-366-4488 (Washington, DC area). 
Additionally, information may be obtained from the Office of Hazardous 
Materials Safety via the Internet at http://ohm.volpe.dot.gov/ohm.

[[Page 18]]

    (2) RSPA's Office of the Chief Counsel (OCC) is available to answer 
questions concerning Federal hazardous material transportation law, 49 
USC 5101 et seq. and Federal preemption of state, local and Indian tribe 
hazardous material transportation requirements. OCC may be contacted by 
telephone (202-366-4400) from 9:00 a.m. to 4:00 p.m. Eastern time, 
Monday through Friday, except Federal holidays. Information and guidance 
concerning Federal hazardous material transportation law and preemption 
may also be obtained by contacting OCC via the Internet at http://rspa-
atty.dot.gov.
    (b) Availability of Written Interpretations. (1) A written 
regulatory clarification, response to a question, or an opinion 
concerning hazardous materials offering, transporting, or packaging 
requirements may be obtained by submitting a written request to the RSPA 
Office of Hazardous Materials Standards (DHM-10), U.S. Department of 
Transportation, 400 Seventh Street, SW., Washington, DC 20590-0001. The 
requestor must include his or her return address and should also include 
a daytime telephone number.
    (2) A written interpretation regarding Federal hazardous material 
transportation law, 49 USC 5101 et seq., may be obtained from the Office 
of the Chief Counsel (DCC-1) RSPA, U.S. Department of Transportation, 
400 Seventh Street, SW., Washington, DC 20590-0001. The requestor must 
include his or her return address and should also include a daytime 
telephone number.
[62 FR 24057, May 2, 1997; 62 FR 34415, June 26, 1997]



                          Subpart B--Exemptions

    Source:  Amdt. 107-38, 61 FR 21095, May 9, 1996, unless otherwise 
noted.



Sec. 107.101  Purpose and scope.

    This subpart prescribes procedures for the issuance, modification 
and termination of exemptions from requirements of this subchapter, 
subchapter C of this chapter, or regulations issued under chapter 51 of 
49 U.S.C.



Sec. 107.105  Application for exemption.

    (a) General. Each application for an exemption or modification of an 
exemption must be written in English and must--
    (1) Be submitted in duplicate and, for timely consideration, at 
least 120 days before the requested effective date to: Associate 
Administrator for Hazardous Materials Safety, Research and Special 
Programs Administration, U.S. Department of Transportation, 400 7th 
Street, SW, Washington, DC 20590-0001. Attention: Exemptions, DHM-31;
    (2) State the name, street and mailing addresses, and telephone 
number of the applicant; if the applicant is not an individual, state 
the name, street and mailing addresses, and telephone number of an 
individual designated as an agent of the applicant for all purposes 
related to the application;
    (3) If the applicant is not a resident of the United States, a 
designation of agent for service in accordance with Sec. 107.7 of this 
part; and
    (4) For a manufacturing exemption, a statement of the name and 
street address of each facility where manufacturing under the exemption 
will occur.
    (b) Confidential treatment. To request confidential treatment for 
information contained in the application, the applicant shall comply 
with Sec. 107.5(a).
    (c) Description of exemption proposal. The application must include 
the following information that is relevant to the exemption proposal:
    (1) A citation of the specific regulation from which the applicant 
seeks relief;
    (2) Specification of the proposed mode or modes of transportation;
    (3) A detailed description of the proposed exemption (e.g., 
alternative packaging, test, procedure or activity) including, as 
appropriate, written descriptions, drawings, flow charts, plans and 
other supporting documents;
    (4) A specification of the proposed duration or schedule of events 
for which the exemption is sought;
    (5) A statement outlining the applicant's basis for seeking relief 
from compliance with the specified regulations and, if the exemption is 
requested for a fixed period, a description of how compliance will be 
achieved at the end of that period;


[[Page 19]]


    (6) If the applicant seeks emergency processing specified in 
Sec. 107.117, a statement of supporting facts and reasons;

    (7) Identification and description of the hazardous materials 
planned for transportation under the exemption;

    (8) Description of each packaging, including specification or 
exemption number, as applicable, to be used in conjunction with the 
requested exemption;

    (9) For alternative packagings, documentation of quality assurance 
controls, package design, manufacture, performance test criteria, in-
service performance and service-life limitations;

    (d) Justification of exemption proposal. The application must 
demonstrate that an exemption achieves a level of safety at least equal 
to that required by regulation, or if a required safety level does not 
exist, is consistent with the public interest. At a minimum, the 
application must provide the following:

    (1) Information describing all relevant shipping and incident 
experience of which the applicant is aware that relates to the 
application;

    (2) A statement identifying any increased risk to safety or property 
that may result if the exemption is granted, and a description of the 
measures to be taken to address that risk; and

    (3) Either--

    (i) Substantiation, with applicable analyses, data or test results, 
that the proposed alternative will achieve a level of safety that is at 
least equal to that required by the regulation from which the exemption 
is sought; or

    (ii) If the regulations do not establish a level of safety, an 
analysis that identifies each hazard, potential failure mode and the 
probability of its occurrence, and how the risks associated with each 
hazard and failure mode are controlled for the duration of an activity 
or life-cycle of a packaging.
[Amdt. 107-38, 61 FR 21095, May 9, 1996, as amended at 62 FR 51556, Oct. 
1, 1997]



Sec. 107.107  Application for party status.

    (a) Any person eligible to apply for an exemption may apply to be 
made party to an application or an existing exemption, other than a 
manufacturing exemption.

    (b) Each application filed under this section must--

    (1) Be submitted in duplicate to: Associate Administrator for 
Hazardous Materials Safety, Research and Special Programs 
Administration, U.S. Department of Transportation, 400 7th Street, SW, 
Washington, DC 20590-0001. Attention: Exemptions, DHM-31;
    (2) Identify by number the exemption application or exemption to 
which the applicant seeks to become a party;
    (3) State the name, street and mailing addresses, and telephone 
number of the applicant; if the applicant is not an individual, state 
the name, street and mailing addresses, and telephone number of an 
individual designated as the applicant's agent for all purposes related 
to the application; and
    (4) If the applicant is not a resident of the United States, provide 
a designation of agent for service in accordance with Sec. 107.7.
    (c) The Associate Administrator grants or denies an application for 
party status in the manner specified in Sec. 107.113(e) and (f) of this 
subpart.
    (d) A party to an exemption is subject to all terms of that 
exemption, including the expiration date. If a party to an exemption 
wishes to renew party status, the exemption renewal procedures set forth 
in Sec. 107.109 apply.



Sec. 107.109  Application for renewal.

    (a) Each application for renewal of an exemption or party status to 
an exemption must--
    (1) Be submitted in duplicate to: Associate Administrator for 
Hazardous Materials Safety, Research and Special Programs 
Administration, U.S. Department of Transportation, 400 7th Street, SW, 
Washington, DC 20590-0001. Attention: Exemptions, DHM-31;
    (2) Identify by number the exemption for which renewal is requested;
    (3) State the name, street and mailing addresses, and telephone 
number of the applicant; if the applicant is not an individual, state 
the name, street and mailing addresses, and telephone number of an 
individual designated as an agent of the applicant for all purposes 
related to the application;
    (4) Include either a certification by the applicant that the 
original application, as it may have been updated by

[[Page 20]]

any application for renewal, remains accurate and complete; or include 
an amendment to the previously submitted application as is necessary to 
update and assure the accuracy and completeness of the application, with 
certification by the applicant that the application as amended is 
accurate and complete; and
    (5) Include a statement describing all relevant shipping and 
incident experience of which the applicant is aware in connection with 
the exemption since its issuance or most recent renewal. If the 
applicant is aware of no incidents, the applicant shall so certify. When 
known to the applicant, the statement should indicate the approximate 
number of shipments made or packages shipped, as the case may be, and 
number of shipments or packages involved in any loss of contents, 
including loss by venting other than as authorized in subchapter C.
    (b) If at least 60 days before an existing exemption expires the 
holder files an application for renewal that is complete and conforms to 
the requirements of this section, the exemption will not expire until 
final administrative action on the application for renewal has been 
taken.



Sec. 107.111  Withdrawal.

    An application may be withdrawn at any time before a decision to 
grant or deny it is made. Withdrawal of an application does not 
authorize the removal of any related records from the RSPA dockets or 
files. Applications that are eligible for confidential treatment under 
Sec. 107.5 will remain confidential after the application is withdrawn. 
The duration of this confidential treatment for trade secrets and 
commercial or financial information is indefinite, unless the party 
requesting the confidential treatment of the materials notifies the 
Associate Administrator that the confidential treatment is no longer 
required.



Sec. 107.113  Application processing and evaluation.

    (a) The Associate Administrator reviews an application for 
exemption, modification of exemption, party to exemption, or renewal of 
an exemption to determine if it is complete and conforms with the 
requirements of this subpart. This determination will be made within 30 
days of receipt of the application for exemption, modification of 
exemption, or party to exemption, and within 15 days of receipt of an 
application for renewal of an exemption. If an application is determined 
to be incomplete, the applicant is informed of the reasons.
    (b) An application, other than a renewal, party to, or emergency 
exemption application, that is determined to be complete is docketed. 
Notice of the application is published in the Federal Register, and an 
opportunity for public comment is provided. All comments received during 
the comment period are considered before final action is taken on the 
application.
    (c) No public hearing or other formal proceeding is required under 
this subpart before the disposition of an application. Unless emergency 
processing under Sec. 107.117 is requested and granted, applications are 
usually processed in the order in which they are filed.
    (d) During the processing and evaluation of an application, the 
Associate Administrator may request additional information from the 
applicant. If the applicant does not respond to a written request for 
additional information within 30 days of the date the request was 
received, the application may be deemed incomplete and denied. However, 
if the applicant responds in writing within the 30-day period requesting 
an additional 30 days within which it will gather the requested 
information, the Associate Administrator may grant the 30-day extension.
    (e) The Associate Administrator may grant or deny an application, in 
whole or in part. In the Associate Administrator's discretion, an 
application may be granted subject to provisions that are appropriate to 
protect health, safety or property. The Associate Administrator may 
impose additional provisions not specified in the application or remove 
conditions in the application that are unnecessary.
    (f) The Associate Administrator may grant an application on finding 
that--
    (1) The application complies with this subpart;

[[Page 21]]

    (2) The application demonstrates that the proposed alternative will 
achieve a level of safety that:
    (i) Is at least equal to that required by the regulation from which 
the exemption is sought, or
    (ii) If the regulations do not establish a level of safety, is 
consistent with the public interest and adequately will protect against 
the risks to life and property inherent in the transportation of 
hazardous materials in commerce;
    (3) The application states all material facts, and contains no 
materially false or materially misleading statement;
    (4) The applicant meets the qualifications required by applicable 
regulations; and
    (5) The applicant is fit to conduct the activity authorized by the 
exemption. This assessment may be based on information in the 
application, prior compliance history of the applicant, and other 
information available to the Associate Administrator.
    (g) An applicant is notified in writing whether the application is 
granted or denied. A denial contains a brief statement of reasons.
    (h) An exemption and any renewal thereof terminates according to its 
terms or, if not otherwise specified, two years after the date of 
issuance. A grant of party status to an exemption, unless otherwise 
stated, terminates on the date that the exemption expires.
    (i) The Associate Administrator, on determining that an application 
concerns a matter of general applicability and future effect and should 
be the subject of rulemaking, may initiate rulemaking under part 106 of 
this chapter in addition to or instead of acting on the application.
    (j) The Associate Administrator publishes in the Federal Register a 
list of all exemption grants, denials, and modifications and all 
exemption applications withdrawn under this section.



Sec. 107.117  Emergency processing.

    (a) An application is granted emergency processing if the Associate 
Administrator, on the basis of the application and any inquiry 
undertaken, finds that--
    (1) Emergency processing is necessary to prevent significant injury 
to persons or property (other than the hazardous material to be 
transported) that could not be prevented if the application were 
processed on a routine basis; or
    (2) Emergency processing is necessary for immediate national 
security purposes or to prevent significant economic loss that could not 
be prevented if the application were processed on a routine basis.
    (b) Where the significant economic loss is to the applicant, or to a 
party in a contractual relationship to the applicant with respect to the 
activity to be undertaken, the Associate Administrator may deny 
emergency processing if timely application could have been made.
    (c) A request for emergency processing on the basis of potential 
economic loss must reasonably describe and estimate the potential loss.
    (d) An application submitted under this section must conform to 
Sec. 107.105 to the extent that the receiving U.S. Department of 
Transportation official deems necessary to process the application. An 
application on an emergency basis must be submitted to the U.S. 
Department of Transportation modal contact official for the initial mode 
of transportation to be utilized, as follows:
    (1) Certificate-Holding Aircraft: The Federal Aviation 
Administration Civil Aviation Security Office that serves the place 
where the flight will originate or that is responsible for the aircraft 
operator's overall aviation security program. The nearest Civil Aviation 
Security Office may be located by calling the FAA Duty Officer, 202-267-
3333 (any hour).
    (2) Noncertificate-Holding Aircraft (Those Which Operate Under 14 
CFR Part 91): The Federal Aviation Administration Civil Aviation 
Security Office that serves the place where the flight will originate. 
The nearest Civil Aviation Security Office may be located by calling the 
FAA Duty Officer, 202-267-3333 (any hour).
    (3) Motor Vehicle Transportation: Director, Office of Motor Carrier 
Research and Standards, Federal Highway Administration, U.S. Department 
of Transportation, Washington, DC 20590-

[[Page 22]]

0001, 202-366-4001 (day); 202-267-2100 (night).
    (4) Rail Transportation: Staff Director, Hazardous Materials 
Division, Office of Safety Assurance and Compliance, Federal Railroad 
Administration, U.S. Department of Transportation, Washington, DC 20590-
0001, 202-366-0509 or 366-0523 (day); 202-267-2100 (night).
    (5) Water Transportation: Chief, Hazardous Materials Standards 
Division, Office of Operating and Environmental Standards, United States 
Coast Guard, U.S. Department of Transportation, Washington, DC 20593-
0001, 202-267-1577 (day); 202-267-2100 (night).
    (e) On receipt of all information necessary to process the 
application, the receiving Department of Transportation official 
transmits to the Associate Administrator, by the most rapid available 
means of communication, an evaluation as to whether an emergency exists 
under Sec. 107.117(a) and, if appropriate, recommendations as to the 
conditions to be included in the exemption. If the Associate 
Administrator determines that an emergency exists under Sec. 107.117(a) 
and that, with reference to the criteria of Sec. 107.113(f), granting of 
the application is in the public interest, the Associate Administrator 
grants the application subject to such terms as necessary and 
immediately notifies the applicant. If the Associate Administrator 
determines that an emergency does not exist or that granting of the 
application is not in the public interest, the applicant immediately is 
so notified.
    (f) A determination that an emergency does not exist is not subject 
to reconsideration under Sec. 107.123 of this part.
    (g) Within 90 days following issuance of an emergency exemption, the 
Associate Administrator will publish, in the Federal Register, a notice 
of issuance with a statement of the basis for the finding of emergency 
and the scope and duration of the exemption.
[Amdt. 107-38, 61 FR 21095, May 9, 1996, as amended at 62 FR 51556, Oct. 
1, 1997]



Sec. 107.121  Modification, suspension or termination of exemption or grant of party status.

    (a) The Associate Administrator may modify an exemption or grant of 
party status on finding that--
    (1) Modification is necessary so that an exemption reflects current 
statutes and regulations; or
    (2) Modification is required by changed circumstances to meet the 
standards of Sec. 107.113(f).
    (b) The Associate Administrator may modify, suspend or terminate an 
exemption or grant of party status, as appropriate, on finding that--
    (1) Because of a change in circumstances, the exemption or party 
status no longer is needed or no longer would be granted if applied for;
    (2) The application contained inaccurate or incomplete information, 
and the exemption or party status would not have been granted had the 
application been accurate and complete;
    (3) The application contained deliberately inaccurate or incomplete 
information; or
    (4) The holder or party knowingly has violated the terms of the 
exemption or an applicable requirement of this chapter, in a manner 
demonstrating the holder or party is not fit to conduct the activity 
authorized by the exemption.
    (c) Except as provided in paragraph (d) of this section, before an 
exemption or grant of party status is modified, suspended or terminated, 
the Associate Administrator notifies the holder or party in writing of 
the proposed action and the reasons for it, and provides an opportunity 
to show cause why the proposed action should not be taken.
    (1) The holder or party may file a written response that shows cause 
why the proposed action should not be taken within 30 days of receipt of 
notice of the proposed action.
    (2) After considering the holder's or party's written response, or 
after 30 days have passed without response since receipt of the notice, 
the Associate Administrator notifies the holder or party in writing of 
the final decision with a brief statement of reasons.

[[Page 23]]

    (d) The Associate Administrator, if necessary to avoid a risk of 
significant harm to persons or property, may in the notification declare 
the proposed action immediately effective.



Sec. 107.123  Reconsideration.

    (a) An applicant for exemption, an exemption holder, or an applicant 
for party status to an exemption may request that the Associate 
Administrator reconsider a decision under Sec. 107.113(g), 
Sec. 107.117(e) or Sec. 107.121(c) of this part. The request must--
    (1) Be in writing and filed within 20 days of receipt of the 
decision;
    (2) State in detail any alleged errors of fact and law;
    (3) Enclose any additional information needed to support the request 
to reconsider; and
    (4) State in detail the modification of the final decision sought.
    (b) The Associate Administrator grants or denies, in whole or in 
part, the relief requested and informs the requesting person in writing 
of the decision. If necessary to avoid a risk of significant harm to 
persons or property, the Associate Administrator may, in the 
notification, declare the action immediately effective.



Sec. 107.125  Appeal.

    (a) A person who requested reconsideration under Sec. 107.123 and is 
denied the relief requested may appeal to the Administrator. The appeal 
must--
    (1) Be in writing and filed within 30 days of receipt of the 
Associate Administrator's decision on reconsideration;
    (2) State in detail any alleged errors of fact and law;
    (3) Enclose any additional information needed to support the appeal; 
and
    (4) State in detail the modification of the final decision sought.
    (b) The Administrator, if necessary to avoid a risk of significant 
harm to persons or property, may declare the Associate Administrator's 
action effective pending a decision on appeal.
    (c) The Administrator grants or denies, in whole or in part, the 
relief requested and informs the appellant in writing of the decision. 
The Administrator's decision is the final administrative action.



Sec. 107.127  Availability of documents for public inspection.

    (a) Documents related to an application under this subpart, 
including the application itself, are available for public inspection, 
except as specified in paragraph (b) of this section, at the Office of 
the Associate Administrator for Hazardous Materials Safety, Research and 
Special Programs Administration, Dockets Unit, U.S. Department of 
Transportation, 400 7th Street, SW, Washington, DC 20590-0001, Room 
8421. Office hours are 8:30 a.m. to 5:00 p.m., Monday through Friday, 
except holidays when the office is closed. Copies of available documents 
may be obtained as provided in part 7 of this title.
    (b) Documents available for inspection do not include materials 
determined to be withheld from public disclosure under Sec. 107.5 and in 
accordance with the applicable provisions of section 552(b) of title 5, 
United States Code, and part 7 of this title.



                          Subpart C--Preemption



Sec. 107.201  Purpose and scope.

    (a) This subpart prescribes procedures by which:
    (1) Any person, including a State, political subdivision, or Indian 
tribe, directly affected by any requirement of a State, political 
subdivision, or Indian tribe, may apply for a determination as to 
whether that requirement is preempted under 49 U.S.C. 5125, or 
regulations issued thereunder; and
    (2) A State, political subdivision, or Indian tribe may apply for a 
waiver of preemption with respect to any requirement that the State, 
political subdivision, or Indian tribe acknowledges to be preempted by 
49 U.S.C. 5125, or regulations issued thereunder, or that has been 
determined by a court of competent jurisdiction to be so preempted.
    (b) For purposes of this subpart ``political subdivision'' includes 
a municipality; a public agency or other instrumentality of one or more 
States, municipalities, or other political subdivisions of a State; or a 
public corporation, board, or commission established under the laws of 
one or more States.

[[Page 24]]

    (c) For purposes of this subpart, ``regulations issued under the 
Federal hazardous material transportation law'' means the regulations 
contained in this subchapter and subchapter C of this chapter.
    (d) Unless otherwise ordered by the Associate Administrator, an 
application for a preemption determination which includes an application 
for a waiver of preemption will be treated and processed solely as an 
application for a preemption determination.
[Amdt. 107-3, 41 FR 38171, Sept. 9, 1976, as amended by Amdt. 107-24, 56 
FR 8622, Feb. 28, 1991; Amdt. 107-25, 57 FR 20428, May 13, 1992; Amdt. 
107-32, 59 FR 49130, Sept. 26, 1994; Amdt. 107-35, 60 FR 49108, Sept. 
21, 1995; Amdt. 107-38, 61 FR 21098, May 9, 1996]



Sec. 107.202  Standards for determining preemption.

    (a) Except as provided in Sec. 107.221 and unless otherwise 
authorized by Federal law, any requirement of a State or political 
subdivision thereof or an Indian tribe, that concerns one of the 
following subjects and that is not substantively the same as any 
provision of the Federal hazardous material transportation law, this 
subchapter or subchapter C that concerns that subject, is preempted:
    (1) The designation, description, and classification of hazardous 
material.
    (2) The packing, repacking, handling, labeling, marking, and 
placarding of hazardous material.
    (3) The preparation, execution, and use of shipping documents 
pertaining to hazardous material and requirements related to the number, 
content, and placement of those documents.
    (4) The written notification, recording, and reporting of the 
unintentional release in transportation of hazardous material.
    (5) The design, manufacturing, fabrication, marking, maintenance, 
reconditioning, repairing, or testing of a packaging or a container 
which is represented, marked, certified, or sold as qualified for use in 
the transportation of hazardous material.
    (b) Except as provided in Sec. 107.221 and unless otherwise 
authorized by Federal law, any requirement of a State or political 
subdivision or Indian tribe is preempted if--
    (1) Complying with a requirement of the State, political 
subdivision, or Indian tribe and a requirement under the Federal 
hazardous material transportation law or regulations issued thereunder 
is not possible;
    (2) The requirement of the State, political subdivision, or Indian 
tribe, as applied or enforced, is an obstacle to accomplishing and 
carrying out the Federal hazardous material transportation law or 
regulations issued thereunder; or
    (3) It is preempted under 49 U.S.C. 5125 (c).
    (c) A State, political subdivision, or Indian tribe may impose a fee 
related to transporting hazardous material only if the fee is fair and 
used for a purpose related to transporting hazardous material, including 
enforcement and planning, developing and maintaining a capability for 
emergency response.
    (d) For purposes of this section, ``substantively the same'' means 
that the non-Federal requirement conforms in every significant respect 
to the Federal requirement. Editorial and other similar de minimis 
changes are permitted.
[Amdt. 107-24, 56 FR 8622, Feb. 28, 1991, as amended by Amdt. 107-25, 57 
FR 20428, May 13, 1992; Amdt. 107-29, 58 FR 51527, Oct. 1, 1993; Amdt. 
107-32, 59 FR 49130, Sept. 26, 1994; Amdt. 107-38, 61 FR 21098, May 9, 
1996; Amdt. 107-39, 61 FR 51337, Oct. 1, 1996]

                        Preemption Determinations



Sec. 107.203  Application.

    (a) With the exception of highway routing matters covered under 49 
U.S.C. 5125(c), any person, including a State or political subdivision 
thereof or an Indian tribe, directly affected by any requirement of a 
State or political subdivision thereof or an Indian tribe, may apply to 
the Associate Administrator for a determination of whether that 
requirement is preempted by Sec. 107.202 (a) or (b).
    (b) Each application filed under this section for a determination 
must:
    (1) Be submitted to Associate Administrator for Hazardous Materials 
Safety, Research and Special Programs Administration, U.S. Department of 
Transportation, Washington, DC 20590-

[[Page 25]]

0001. Attention: Hazardous Materials Preemption Docket;
    (2) Set forth the text of the State or political subdivision or 
Indian tribe requirement for which the determination is sought;
    (3) Specify each requirement of the Federal hazardous material 
transportation law or the regulations issued thereunder with which the 
applicant seeks the State or political subdivision or Indian tribe 
requirement to be compared;
    (4) Explain why the applicant believes the State or political 
subdivision or Indian tribe requirement should or should not be 
preempted under the standards of Sec. 107.202; and
    (5) State how the applicant is affected by the State or political 
subdivision or Indian tribe requirement.
    (c) The filing of an application for a determination under this 
section does not constitute grounds for noncompliance with any 
requirement of the Federal hazardous material transportation law or the 
regulations issued thereunder.
    (d) Once the Associate Administrator has published notice in the 
Federal Register of an application received under paragraph (a) of this 
section, no applicant for such determination may seek relief with 
respect to the same or substantially the same issue in any court until 
final action has been taken on the application or until 180 days after 
filing of the application, whichever occurs first. Nothing in 
Sec. 107.203(a) prohibits a State or political subdivision or Indian 
tribe, or any other person directly affected by any requirement of a 
State or political subdivision thereof or Indian tribe, from seeking a 
determination of preemption in any court of competent jurisdiction in 
lieu of applying to the Associate Administrator under paragraph (a) of 
this section.
[Amdt. 107-24, 56 FR 8622, Feb. 28, 1991, as amended by Amdt. 107-25, 57 
FR 20428, May 13, 1992; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994; Amdt. 
107-38, 61 FR 21098, May 9, 1996]



Sec. 107.205  Notice.

    (a) If the applicant is other than a State, political subdivision, 
or Indian tribe, the applicant shall mail a copy of the application to 
the State, political subdivision, or Indian tribe concerned accompanied 
by a statement that the State, political subdivision, or Indian tribe 
may submit comments regarding the application to the Associate 
Administrator. The application filed with the Associate Administrator 
must include a certification that the applicant has complied with this 
paragraph and must include the names and addresses of each State, 
political subdivision, or Indian tribe official to whom a copy of the 
application was sent.
    (b) The Associate Administrator will publish notice of, including an 
opportunity to comment on, an application in the Federal Register and 
may notify in writing any person readily identifiable as affected by the 
outcome of the determination.
    (c) Each person submitting written comments to the Associate 
Administrator with respect to an application filed under this section 
shall send a copy of the comments to the applicant and certify to the 
Associate Administrator that he or she has complied with this 
requirement. The Associate Administrator may notify other persons 
participating in the proceeding of the comments and provide an 
opportunity for those other persons to respond. Late-filed comments are 
considered so far as practicable.
[Amdt. 107-38, 61 FR 21098, May 9, 1996]



Sec. 107.207  Processing.

    (a) The Associate Administrator may initiate an investigation of any 
statement in an application and utilize in his or her evaluation any 
relevant facts obtained by that investigation. The Associate 
Administrator may solicit and accept submissions from third persons 
relevant to an application and will provide the applicant an opportunity 
to respond to all third person submissions. In evaluating an 
application, the Associate Administrator may consider any other source 
of information. The Associate Administrator on his or her own initiative 
may convene a hearing or conference, if he or she considers that a 
hearing or conference will advance his or her evaluation of the 
application.
    (b) The Associate Administrator may dismiss the application without 
prejudice if:

[[Page 26]]

    (1) He or she determines that there is insufficient information upon 
which to base a determination; or
    (2) He or she requests additional information from the applicant and 
it is not submitted.
[Amdt. 107-3, 41 FR 38171, Sept. 9, 1976, as amended by Amdt. 107-24, 56 
FR 8621, 8622, Feb. 28, 1991; Amdt. 107-38, 61 FR 21098, May 9, 1996]



Sec. 107.209  Determination.

    (a) Upon consideration of the application and other relevant 
information received, the Associate Administrator issues a 
determination.
    (b) The determination includes a written statement setting forth the 
relevant facts and the legal basis for the determination, and provides 
that any person aggrieved thereby may file a petition for 
reconsideration with the Associate Administrator.
    (c) The Associate Administrator provides a copy of the determination 
to the applicant and to any other person who substantially participated 
in the proceeding or requested in comments to the docket to be notified 
of the determination. A copy of each determination is placed on file in 
the public docket. The Associate Administrator will publish the 
determination or notice of the determination in the Federal Register.
    (d) A determination issued under this section constitutes an 
administrative determination as to whether a particular requirement of a 
State or political subdivision or Indian tribe is preempted under the 
Federal hazardous material transportation law or regulations issued 
thereunder. The fact that a determination has not been issued under this 
section with respect to a particular requirement of a State or political 
subdivision or Indian tribe carries no implication as to whether the 
requirement is preempted under the Federal hazardous material 
transportation law or regulations issued hereunder.
[Amdt. 107-24, 56 FR 8623, Feb. 28, 1991, as amended by Amdt. 107-25, 57 
FR 20428, May 13, 1992; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994; Amdt. 
107-38, 61 FR 21098, May 9, 1996]



Sec. 107.211  Petition for reconsideration.

    (a) Any person aggrieved by a determination issued under 
Sec. 107.209 may file a petition for reconsideration with the Associate 
Administrator. The petition must be filed within 20 days of publication 
of the determination in the Federal Register.
    (b) The petition must contain a concise statement of the basis for 
seeking review, including any specific factual or legal error alleged. 
If the petition requests consideration of information that was not 
previously made available to the Associate Administrator, the petition 
must include the reasons why such information was not previously made 
available.
    (c) The petitioner shall mail a copy of the petition to each person 
who participated, either as an applicant or commenter, in the preemption 
determination proceeding, accompanied by a statement that the person may 
submit comments concerning the petition to the Associate Administrator 
within 20 days. The petition filed with the Associate Administrator must 
contain a certification that the petitioner has complied with this 
paragraph and include the names and addresses of all persons to whom a 
copy of the petition was sent. Late-filed comments are considered so far 
as practicable.
    (d) The Associate Administrator's decision constitutes final agency 
action.
[Amdt. 107-25, 57 FR 20428, May 13, 1992, as amended by Amdt. 107-38, 61 
FR 21099, May 9, 1996]



Sec. 107.213  Judicial review.

    A party to a proceeding under Sec. 107.203(a) may seek review by the 
appropriate district court of the United States of a decision of the 
Associate Administrator by filing a petition with the court within 60 
days after the Associate Administrator's determination becomes final. 
The determination becomes final when it is published in the Federal 
Register.
[Amdt. 107-38, 61 FR 21099, May 9, 1996]

[[Page 27]]

                   Waiver of Preemption Determinations



Sec. 107.215  Application.

    (a) With the exception of requirements preempted under 49 U.S.C. 
5125(c), any State or political subdivision thereof, or Indian tribe may 
apply to the Associate Administrator for a waiver of preemption with 
respect to any requirement that the State or political subdivision 
thereof or an Indian tribe acknowledges to be preempted under the 
Federal hazardous material transportation law or the regulations issued 
thereunder, or that has been determined by a court of competent 
jurisdiction to be so preempted. The Associate Administrator may waive 
preemption with respect to such requirement upon a determination that 
such requirement--
    (1) Affords an equal or greater level of protection to the public 
than is afforded by the requirements of the Federal hazardous material 
transportation law or the regulations issued thereunder, and
    (2) Does not unreasonably burden commerce.
    (b) Each application filed under this section for a waiver of 
preemption determination must:
    (1) Be submitted to the Associate Administrator for Hazardous 
Materials Safety, Research and Special Programs Administration, U.S. 
Department of Transportation, Washington, DC 20590-0001. Attention: 
Hazardous Materials Preemption Docket;
    (2) Set forth the text of the State or political subdivision 
requirement for which the determination is being sought;
    (3) Include a copy of any court order and any ruling issued under 
Sec. 107.209 having a bearing on the application;
    (4) Contain an express acknowledgment by the applicant that the 
State, political subdivision, or Indian tribe requirement is preempted 
under the Federal hazardous material transportation law or the 
regulations issued thereunder, unless it has been so determined by a 
court of competent jurisdiction or in a determination issued under 
Sec. 107.209;
    (5) Specify each requirement of the Federal hazardous material 
transportation law or the regulations issued thereunder that preempts 
the State, political subdivision, or Indian tribe requirement;
    (6) State why the applicant believes the State, political 
subdivision or Indian tribe requirements affords an equal or greater 
level of protection to the public than is afforded by the requirements 
of the Federal hazardous material transportation law or the regulations 
issued thereunder;
    (7) State why the applicant believes the State, political 
subdivision or Indian tribe requirement does not unreasonably burden 
commerce; and
    (8) Specify what steps the State, political subdivision or Indian 
tribe is taking to administer and enforce effectively its inconsistent 
requirement.
[Amdt. 107-3, 41 FR 38171, Sept. 9, 1976, as amended by Amdt. 107-22, 55 
FR 39978, Oct. 1, 1990; Amdt. 107-24, 56 FR 8621, 8623, Feb. 28, 1991; 
56 FR 15510, Apr. 17, 1991; Amdt. 107-23, 56 FR 66156, Dec. 20, 1991; 
Amdt. 107-25, 57 FR 20428, May 13, 1992; Amdt. 107-32, 59 FR 49131, 
Sept. 26, 1994; Amdt. 107-38, 61 FR 21099, May 9, 1996]



Sec. 107.217  Notice.

    (a) The applicant shall mail a copy of the application and any 
subsequent amendments or other documents relating to the application to 
each person who is reasonably ascertainable by the applicant as a person 
who will be affected by the determination sought. The copy of the 
application must be accompanied by a statement that the person may 
submit comments regarding the application to the Associate Administrator 
within 45 days. The application filed with the Associate Administrator 
must include a certification that the application has complied with this 
paragraph and must include the names and addresses of each person to 
whom the application was sent.
    (b) Notwithstanding the provisions of paragraph (a) of this section, 
if the State or political subdivision determines that compliance with 
paragraph (a) of this section would be impracticable, the applicant 
shall:
    (1) Comply with the requirements of paragraph (a) of this section 
with regard to those persons whom it is reasonable and practicable to 
notify; and

[[Page 28]]

    (2) Include with the application filed with the Associate 
Administrator a description of the persons or class or classes of 
persons to whom notice was not sent.
    (c) The Associate Administrator may require the applicant to provide 
notice in addition to that required by paragraphs (a) and (b) of this 
section, or may determine that the notice required by paragraph (a) of 
the section is not impracticable, or that notice should be published in 
the Federal Register. Late-filed comments are considered so far as 
practicable.
    (d) The Associate Administrator may notify any other persons who may 
be affected by the outcome of a determination on the application.
    (e) Any person submitting written comments to the Associate 
Administrator with respect to an application filed under this section 
shall send a copy of the comments to the applicant. The person shall 
certify to the Associate Administrator that he has complied with the 
requirements of this paragraph. The Associate Administrator may notify 
other persons participating in the proceeding of the comments and 
provide an opportunity for those other persons to respond.
[Amdt. 107-3, 41 FR 38171, Sept. 9, 1976, as amended by Amdt. 107-24, 56 
FR 8621, Feb. 28, 1991; Amdt. 107-25, 57 FR 20429, May 13, 1992; Amdt. 
107-38, 61 FR 21099, May 9, 1996]



Sec. 107.219  Processing.

    (a) The Associate Administrator may initiate an investigation of any 
statement in an application and utilize in his or her evaluation any 
relevant facts obtained by that investigation. The Associate 
Administrator may solicit and accept submissions from third persons 
relevant to an application and will provide the applicant an opportunity 
to respond to all third person submissions. In evaluating an 
application, the Associate Administrator on his or her own initiative 
may convene a hearing or conference, if he or she considers that a 
hearing or conference will advance his or her evaluation of the 
application.
    (b) The Associate Administrator may dismiss the application without 
prejudice if:
    (1) He or she determines that there is insufficient information upon 
which to base a determination;
    (2) Upon his or her request, additional information is not submitted 
by the applicant; or
    (3) The applicant fails to provide the notice required by 
Sec. 107.217.
    (c) Except as provided in Sec. 107.201(c), the Associate 
Administrator will only consider an application for a waiver of 
preemption determination if:
    (1) The applicant State or political subdivision thereof or Indian 
tribe expressly acknowledges in its application that the State or 
political subdivision thereof of Indian tribe requirement for which the 
determination is sought is inconsistent with the requirements of the 
Federal hazardous material transportation law or the regulations issued 
thereunder; or
    (2) The State or political subdivision thereof or Indian tribe 
requirement has been determined by a court of competent jurisdiction or 
in a ruling issued under Sec. 107.209 to be inconsistent with the 
requirements of the Federal hazardous material transportation law or the 
regulations issued thereunder.
    (d) When the Associate Administrator has received all substantive 
information it considers necessary to process an application for a 
waiver of preemption determination, it serves notice of that fact upon 
the applicant and all other persons who received notice of the 
proceeding pursuant to Sec. 107.217.
    (e) To the extent possible, each application for a waiver of 
preemption determination will be acted upon in a manner consistent with 
the disposition of previous applications for waiver of preemption 
determinations.
[Amdt. 107-3, 41 FR 38171, Sept. 9, 1976, as amended by Amdt. 107-24, 56 
FR 8621, 8623, Feb. 28, 1991; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994; 
Amdt. 107-38, 61 FR 21099, May 9, 1996]



Sec. 107.221  Determination.

    (a) After considering the application and other relevant information 
received or obtained during the proceeding, the Associate Administrator 
issues a determination.
    (b) The Associate Administrator may issue a waiver of preemption 
only on

[[Page 29]]

finding that the requirement of the State or political subdivision 
thereof or Indian tribe affords the public a level of safety at least 
equal to that afforded by the requirements of the Federal hazardous 
material transportation law or the regulations issued thereunder and 
does not unreasonably burden commerce. In determining if the requirement 
of the State or political subdivision thereof or Indian tribe 
unreasonably burdens commerce, the Associate Administrator considers:
    (1) The extent to which increased costs and impairment of efficiency 
result from the requirement of the State or political subdivision 
thereof or Indian tribe.
    (2) Whether the requirement of the State or political subdivision 
thereof or Indian tribe has a rational basis.
    (3) Whether the requirement of the State or political subdivision 
thereof or Indian tribe achieves its stated purpose.
    (4) Whether there is need for uniformity with regard to the subject 
concerned and if so, whether the requirement of the State or political 
subdivision thereof or Indian tribe competes or conflicts with those of 
other States or political subdivisions thereof or Indian tribes.
    (c) The determination includes a written statement setting forth 
relevant facts and legal bases and providing that any person aggrieved 
by the determination may file a petition for reconsideration with the 
Associate Administrator.
    (d) The Associate Administrator provides a copy of the determination 
to the applicant and to any other person who substantially participated 
in the proceeding or requested in comments to the docket to be notified 
of the determination. A copy of the determination is placed on file in 
the public docket. The Associate Administrator will publish the 
determination or notice of the determination in the Federal Register.
    (e) A determination under this section constitutes an administrative 
finding of whether a particular requirement of a State or political 
subdivision thereof or Indian tribe is preempted under the Federal 
hazardous material transportation law or any regulation issued 
thereunder, or whether preemption is waived.
[Amdt. 107-38, 61 FR 21099, May 9, 1996]



Sec. 107.223  Petition for reconsideration.

    (a) Any person aggrieved by a determination under Sec. 107.221 may 
file a petition for reconsideration with the Associate Administrator. 
The petition must be filed within 20 days of publication of the 
determination in the Federal Register.
    (b) The petition must contain a concise statement of the basis for 
seeking review, including any specific factual or legal error alleged. 
If the petition requests consideration of information that was not 
previously made available to the Associate Administrator, the petition 
must include the reasons why such information was not previously made 
available.
    (c) The petitioner shall mail a copy of the petition to each person 
who participated, either as an applicant or commenter, in the waiver of 
preemption proceeding, accompanied by a statement that the person may 
submit comments concerning the petition to the Associate Administrator 
within 20 days. The petition filed with the Associate Administrator must 
contain a certification that the petitioner has complied with this 
paragraph and include the names and addresses of all persons to whom a 
copy of the petition was sent. Late-filed comments are considered so far 
as practicable.
    (d) The Associate Administrator's decision constitutes final agency 
action.
[Amdt. 107-25, 57 FR 20429, May 13, 1992, as amended by Amdt. 107-38, 61 
FR 21099, May 9, 1996]



Sec. 107.227  Judicial review.

    A party to a proceeding under Sec. 107.215(a) may seek review by the 
appropriate district court of the United States of a decision of the 
Associate Administrator by filing a petition with the court within 60 
days after the Associate Administrator's determination becomes final. 
The determination becomes final when it is published in the Federal 
Register.
[Amdt. 107-38, 61 FR 21099, May 9, 1996]

[[Page 30]]



                         Subpart D--Enforcement

    Source:  Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, unless otherwise 
noted.



Sec. 107.301  Delegated authority for enforcement.

    Under redelegation from the Administrator, Research and Special 
Programs Administration, the Associate Administrator for Hazardous 
Materials Safety and the Office of the Chief Counsel exercise their 
authority for enforcement of the Federal hazardous material 
transportation law, this subchapter, and subchapter C of this 
subchapter, in accordance with Sec. 1.53 of this title.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-24, 56 
FR 8621, Feb. 28, 1991; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994]



Sec. 107.303  Purpose and scope.

    This subchapter describes the various enforcement authorities 
exercised by the Associate Administrator for Hazardous Materials Safety 
and the Office of Chief Counsel and the associated sanctions and 
prescribes the procedures governing the exercise of those authorities 
and the imposition of those sanctions.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-15, 51 
FR 34986, Oct. 1, 1986; Amdt. 107-24, 56 FR 8621, Feb. 28, 1991]



Sec. 107.305  Investigations.

    (a) General. In accordance with its delegated authority under part 1 
of this title, the Associate Administrator for Hazardous Materials 
Safety may initiate investigations relating to compliance by any person 
with any provisions of this subchapter or subchapter C of this chapter, 
or any exemption, approval, or order issued thereunder, or any court 
decree relating thereto. The Associate Administrator for Hazardous 
Materials Safety encourages voluntary production of documents in 
accordance with and subject to Sec. 107.13, and hearings may be 
conducted, and depositions taken pursuant to 49 U.S.C. 5121(a). The 
Associate Administrator for Hazardous Materials Safety may conduct 
investigative conferences and hearings in the course of any 
investigation.
    (b) Investigations and Inspections. Investigations under 49 U.S.C. 
5121(a) are conducted by personnel duly authorized for that purpose by 
the Associate Administrator. Inspections under 49 U.S.C. 5121(c) are 
conducted by Hazardous Materials Enforcement Specialists, also known as 
``hazmat inspectors'' or ``inspectors,'' whom the Associate 
Administrator has designated for that purpose.
    (1) An inspector will, on request, present his or her credentials 
for examination, but the credentials may not be reproduced.
    (2) An inspector may administer oaths and receive affirmations in 
any matter under investigation by the Associate Administrator.
    (3) An inspector may gather information by reasonable means 
including, but not limited to, interviews, statements, photocopying, 
photography, and video- and audio-recording.
    (4) With concurrence of the Director, Office of Hazardous Materials 
Enforcement, Research and Special Programs Administration, an inspector 
may issue a subpoena for the production of documentary or other tangible 
evidence if, on the basis of information available to the inspector, the 
documents and evidence materially will advance a determination of 
compliance with this subchapter or subchapter C. Service of a subpoena 
shall be in accordance with Sec. 107.13 (c) and (d). A person to whom a 
subpoena is directed may seek review of the subpoena by applying to the 
Office of Chief Counsel in accordance with Sec. 107.13(h). A subpoena 
issued under this paragraph may be enforced in accordance with 
Sec. 107.13(i).
    (c) Notification. Any person who is the subject of an Associate 
Administrator for Hazardous Materials Safety investigation and who is 
requested to furnish information or documentary evidence is notified as 
to the general purpose for which the information or evidence is sought.
    (d) Termination. When the facts disclosed by an investigation 
indicate that further action is unnecessary or unwarranted at that time, 
the person being investigated is notified and the investigative file is 
closed without prejudice to further investigation by

[[Page 31]]

the Associate Administrator for Hazardous Materials Safety.
    (e) Confidentiality. Information received in an investigation under 
this section, including the identity of the person investigated and any 
other person who provides information during the investigation, shall 
remain confidential under the investigatory file exception, or other 
appropriate exception, to the public disclosure requirements of 5 U.S.C. 
552.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-24, 56 
FR 8621, Feb. 28, 1991; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994; Amdt. 
107-38, 61 FR 21099, May 9, 1996]

                  Compliance Orders and Civil Penalties



Sec. 107.307  General.

    (a) When the Associate Administrator for Hazardous Materials Safety 
and the Office of the Chief Counsel have reason to believe that a person 
is knowingly engaging or has knowingly engaged in conduct which is a 
violation of the Federal hazardous material transportation law or any 
provision of this subchapter or subchapter C of this chapter, or any 
exemption, or order issued thereunder, for which the Associate 
Administrator for Hazardous Materials Safety or the Office of the Chief 
Counsel exercise enforcement authority, they may--
    (1) Issue a warning letter, as provided in Sec. 107.309;
    (2) Initiate proceedings to assess a civil penalty, as provided in 
either Secs. 107.310 or 107.311;
    (3) Issue an order directing compliance, regardless of whether a 
warning letter has been issued or a civil penalty assessed; and
    (4) Seek any other remedy available under the Federal hazardous 
material transportation law.
    (b) In the case of a proceeding initiated for failure to comply with 
an exemption, the allegation of a violation of a term or condition 
thereof is considered by the Associate Administrator for Hazardous 
Materials Safety and the Office of the Chief Counsel to constitute an 
allegation that the exemption holder or party to the exemption is 
failing, or has failed to comply with the underlying regulations from 
which relief was granted by the exemption.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-32, 59 
FR 49131, Sept. 26, 1994; Amdt. 107-36, 61 FR 7183, Feb. 26, 1996]



Sec. 107.309  Warning letters.

    (a) The Associate Administrator for Hazardous Materials Safety may 
issue a warning letter to any person whom the Associate Administrator 
for Hazardous Materials Safety believes to have committed a probable 
violation of the Federal hazardous material transportation law or any 
provision of this subchapter, subchapter C of this chapter, or any 
exemption issued thereunder.
    (b) A warning letter issued under this section includes:
    (1) A statement of the facts upon which the Associate Administrator 
for Hazardous Materials Safety bases its determination that the person 
has committed a probable violation;
    (2) A statement that the recurrence of the probable violations cited 
may subject the person to enforcement action; and
    (3) An opportunity to respond to the warning letter by submitting 
pertinent information or explanations concerning the probable violations 
cited therein.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-15, 51 
FR 34986, Oct. 1, 1986; Amdt. 107-24, 56 FR 8621, Feb. 28, 1991; Amdt. 
107-32, 59 FR 49131, Sept. 26, 1994; Amdt. 107-36, 61 FR 7183, Feb. 26, 
1996]



Sec. 107.310  Ticketing.

    (a) For an alleged violation that does not have a direct or 
substantial impact on safety, the Associate Administrator for Hazardous 
Materials Safety may issue a ticket.
    (b) The Associate Administrator for Hazardous Materials Safety 
issues a ticket by mailing it by certified or registered mail to the 
person alleged to have committed the violation. The ticket includes:
    (1) A statement of the facts on which the Associate Administrator 
bases the conclusion that the person has committed the alleged 
violation;

[[Page 32]]

    (2) The maximum penalty provided for by statute, the proposed full 
penalty determined according to RSPA's civil penalty guidelines and the 
statutory criteria for penalty assessment, and the ticket penalty 
amount; and
    (3) A statement that within 45 days of receipt of the ticket, the 
person must pay the penalty in accordance with paragraph (d) of this 
section, make an informal response under Sec. 107.317, or request a 
formal administrative hearing under Sec. 107.319.
    (c) If the person makes an informal response or requests a formal 
administrative hearing, the Associate Administrator for Hazardous 
Materials Safety forwards the inspection report, ticket and response to 
the Office of the Chief Counsel for processing under Secs. 107.307-
107.339, except that the Office of the Chief Counsel will not issue a 
Notice of Probable Violation under Sec. 107.311. The Office of the Chief 
Counsel may impose a civil penalty that does not exceed the proposed 
full penalty set forth in the ticket.
    (d) Payment of the ticket penalty amount must be made in accordance 
with the instructions on the ticket.
    (e) If within 45 days of receiving the ticket the person does not 
pay the ticket amount, make an informal response, or request a formal 
administrative hearing, the person has waived the right to make an 
informal response or request a hearing, has admitted the violation and 
owes the ticket penalty amount to RSPA.
[Amdt. 107-36, 61 FR 7183, Feb. 26, 1996]



Sec. 107.311  Notice of probable violation.

    (a) The Office of Chief Counsel may serve a notice of probable 
violation on a person alleging the violation of one or more provisions 
of the Federal hazardous material transportation law or any provision of 
this subchapter or subchapter C of this chapter, or any exemption, or 
order issued thereunder.
    (b) A notice of probable violation issued under this section 
includes the following information:
    (1) A citation of the provisions of the Federal hazardous material 
transportation law, an order issued thereunder, this subchapter, 
subchapter C of this chapter, or the terms of any exemption issued 
thereunder which the Office of Chief Counsel believes the respondent is 
violating or has violated.
    (2) A statement of the factual allegations upon which the demand for 
remedial action, a civil penalty, or both, is based.
    (3) A statement of the respondent's right to present written or oral 
explanations, information, and arguments in answer to the allegations 
and in mitigation of the sanction sought in the notice of probable 
violation.
    (4) A statement of the respondent's right to request a hearing and 
the procedures for requesting a hearing.
    (5) In addition, in the case of a notice of probable violation 
proposing a compliance order, a statement of the proposed actions to be 
taken by the respondent to achieve compliance.
    (6) In addition, in the case of a notice of probable violation 
proposing a civil penalty:
    (i) A statement of the maximum civil penalty for which the 
respondent may be liable;
    (ii) The amount of the preliminary civil penalty being sought by the 
Office of Chief Counsel, constitutes the maximum amount the Chief 
Counsel may seek throughout the proceeding; and
    (iii) A description of the manner in which the respondent makes 
payment of any money due the United States as a result of the 
proceeding.
    (c) The Office of Chief Counsel may amend a notice of probable 
violation at any time before issuance of a compliance order or an order 
assessing a civil penalty. If the Office of Chief Counsel alleges any 
new material facts or seeks new or additional remedial action or an 
increase in the amount of the proposed civil penalty, it issues a new 
notice of probable violation under this section.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended at 50 FR 45730, 
Nov. 1, 1985; Amdt. 107-24, 56 FR 8624, Feb. 28, 1991; Amdt. 107-32, 59 
FR 49131, Sept. 26, 1994; Amdt. 107-35, 60 FR 49108, Sept. 21, 1995; 
Amdt. 107-36, 61 FR 7184, Feb. 26, 1996]



Sec. 107.313  Reply.

    (a) Within 30 days of receipt of a notice of probable violation, the 
respondent must either:
    (1) Admit the violation under Sec. 107.315;

[[Page 33]]

    (2) Make an informal response under Sec. 107.317; or
    (3) Request a hearing under Sec. 107.319.
    (b) Failure of the respondent to file a reply as provided in this 
section constitutes a waiver of the respondent's right to appear and 
contest the allegations and authorizes the Chief Counsel, without 
further notice to the respondent, to find the facts to be as alleged in 
the notice of probable violation and issue an order directing compliance 
or assess a civil penalty, or, if proposed in the notice, both. Failure 
to request a hearing under paragraph (a)(3) of this section constitutes 
a waiver of the respondent's right to a hearing.
    (c) Upon the request of the respondent, the Office of Chief Counsel 
may, for good cause shown and filed within the 30 days prescribed in the 
notice of probable violation, extend the 30-day response period.



Sec. 107.315  Admission of violations.

    (a) In responding to a notice of probable violation issued under 
Sec. 107.311, the respondent may admit the alleged violations and agree 
to accept the terms of a proposed compliance order or to pay the amount 
of the preliminarily assessed civil penalty, or, if proposed in the 
notice, both.
    (b) If the respondent agrees to the terms of a proposed compliance 
order, the Chief Counsel issues a final order prescribing the remedial 
action to be taken by the respondent.
    (c) Payment of a civil penalty, when the amount of the penalty 
exceeds $10,000, must be made by wire transfer, through the Federal 
Reserve Communications System (Fedwire), to the account of the U.S. 
Treasury. Detailed instructions on making payments by wire transfer may 
be obtained from the Financial Operations Division (AMZ-320), Federal 
Aviation Administration, Mike Monroney Aeronautical Center, P.O. Box 
25880, Oklahoma City, OK 73125.
    (d) Payment of a civil penalty, when the amount of the penalty is 
$10,000 or less, must be made either by wire transfer, as set forth in 
paragraph (c) of this section, or certified check or money order payable 
to ``U.S. Department of Transportation'' and submitted to the Financial 
Operations Division (AMZ-320), Federal Aviation Administration, Mike 
Monroney Aeronautical Center, P.O. Box 25880, Oklahoma City, OK 73125.
[Amdt. 107-11, 48 FR 265l, Jan. 20, 1983, as amended by Amdt. 107-23, 57 
FR 45453, Oct. 1, 1992; Amdt. 107-29, 58 FR 51527, Oct. 1, 1993; Amdt. 
107-38, 61 FR 21100, May 9, 1996]



Sec. 107.317  Informal response.

    (a) In responding to a notice of probable violation under 
Sec. 107.311, the respondent may submit to the official who issued the 
notice, written explanations, information, or arguments in response to 
the allegations, the terms of a proposed compliance order, or the amount 
of the preliminarily assessed civil penalty.
    (b) The respondent may include in his informal response a request 
for a conference. Upon the request of the respondent, the conference may 
be either in person or by telephone. A request for a conference must set 
forth the issues the respondent will raise at the conference.
    (c) Upon receipt of a request for a conference under paragraph (b) 
of this section, the Chief Counsel's Office, in consultation with the 
Associate Administrator for Hazardous Materials Safety, arranges for a 
conference as soon as practicable at a time and place of mutual 
convenience.
    (d) The respondent's written explanations, information, and 
arguments as well as the respondent's presentation at a conference are 
considered by the Chief Counsel in reviewing the notice of probable 
violation. Based upon a review of the proceeding, the Chief Counsel may 
dismiss the notice of probable violation in whole or in part. If he does 
not dismiss it in whole, he issues an order directing compliance or 
assessing a civil penalty, or, if proposed in the notice, both.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-23, 56 
FR 66157, Dec. 20, 1991]



Sec. 107.319  Request for a hearing.

    (a) In responding to a notice of probable violation under 
Sec. 107.311, the respondent may request a formal administrative hearing 
on the record before an Administrative Law Judge (ALJ)

[[Page 34]]

obtained by the Office of the Chief Counsel.
    (b) A request for a hearing under paragraph (a) of this section 
must:
    (1) State the name and address of the respondent and of the person 
submitting the request if different from the respondent;
    (2) State which allegations of violations, if any, are admitted; and
    (3) State generally the issues to be raised by the respondent at the 
hearing. Issues not raised in the request are not barred from 
presentation at the hearing; and
    (4) Be addressed to the official who issued the notice.
    (c) After a request for a hearing that complies with the 
requirements of paragraph (b) of this section, the Chief Counsel obtains 
an ALJ to preside over the hearing and notifies the respondent of this 
fact. Upon assignment of an ALJ, further matters in the proceeding 
generally are conducted by and through the ALJ, except that the Chief 
Counsel and respondent may compromise or settle the case under 
Sec. 107.327 of this subpart without order of the ALJ or voluntarily 
dismiss the case under Rule 41(a)(1) of the Federal Rules of Civil 
Procedure without order of the ALJ; in the event of such a compromise, 
settlement or dismissal, the Chief Counsel expeditiously will notify the 
ALJ thereof.
    (d) At any time after requesting a formal administrative hearing but 
prior to the issuance of a decision and final order by the ALJ, the 
respondent may withdraw such request in writing, thereby terminating the 
jurisdication of the ALJ in the case. Such a withdrawal constitutes an 
irrevocable waiver of respondent's right to such a hearing on the facts, 
allegations, and proposed sanction presented in the notice of probable 
violation to which the request for hearing relates.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended at 48 FR 17094, 
Apr. 21, 1983; Amdt. No. 107-19, 54 FR 22899, May 30, 1989]



Sec. 107.321  Hearing.

    (a) To the extent practicable, the hearing is held in the general 
vicinity of the place where the alleged violation occurred or at a place 
convenient to the respondent. Testimony by witnesses shall be given 
under oath and the hearing shall be recorded verbatim.
    (b) Hearings are conducted in accordance with the Federal Rules of 
Evidence and Federal Rules of Civil Procedure; however, the ALJ may 
modify them as he determines necessary in the interest of a full 
development of the facts. In addition, the ALJ may:
    (1) Administer oaths and affirmations;
    (2) Issue subpoenas as provided by Sec. 107.13;
    (3) Adopt procedures for the submission of motions, evidence, and 
other documents pertinent to the proceeding;
    (4) Take or cause depositions to be taken;
    (5) Rule on offers of proof and receive relevant evidence;
    (6) Examine witnesses at the hearing;
    (7) Convene, recess, reconvene, adjourn and otherwise regulate the 
course of the hearing;
    (8) Hold conferences for settlement, simplification of the issues, 
or any other proper purpose; and
    (9) Take any other action authorized by, or consistent with, the 
provisions of this subpart and permitted by law which may expedite the 
hearing or aid in the disposition of an issue raised therein.
    (c) The official who issued the notice of probable violation, or his 
representative, has the burden of proving the facts alleged therein.
    (d) The respondent may appear and be heard on his own behalf or 
through counsel of his choice. The respondent or his counsel may offer 
relevant information including testimony which he believes should be 
considered in opposition to the allegations or which may bear on the 
sanction being sought and conduct such cross-examination as may be 
required for a full disclosure of the facts.



Sec. 107.323  ALJ's decision.

    (a) After consideration of all matters of record in the proceeding, 
the ALJ shall issue an order dismissing the notice of probable violation 
in whole or in part or granting the sanction sought by the Office of 
Chief Counsel in the notice. If the ALJ does not dismiss the notice of 
probable violation in whole, he issues an order directing compliance

[[Page 35]]

or assessing a civil penalty, or, if proposed in the notice, both. The 
order includes a statement of the findings and conclusions, and the 
reasons therefore, on all material issues of fact, law, and discretion.
    (b) If, within 20 days of receipt of an order issued under paragraph 
(a) of this section, the respondent does not submit in writing his 
acceptance of the terms of an order directing compliance, or, where 
appropriate, pay a civil penalty, or file an appeal under Sec. 107.325, 
the case may be referred to the Attorney General with a request that an 
action be brought in the appropriate United States District Court to 
enforce the terms of a compliance order or collect the civil penalty.



Sec. 107.325  Appeals.

    (a) Hearing proceedings. A party aggrieved by an ALJ's decision and 
order issued under Sec. 107.323, may file a written appeal in accordance 
with paragraph (c) of this section with the Administrator, Research and 
Special Programs Administration (RSPA), 400 Seventh Street, SW., 
Washington, DC 20590-0001.
    (b) Non-Hearing proceedings. A respondent aggrieved by an order 
issued under Sec. 107.317, may file a written appeal in accordance with 
paragraph (c) of this section with the Administrator, RSPA, 400 Seventh 
Street, SW., Washington, DC 20590-0001.
    (c) An appeal of an order issued under this subpart must:
    (1) Be filed within 20 days of receipt of the order by the appealing 
party; and
    (2) State with particularity the findings in the order that the 
appealing party challenges, and include all information and arguments 
pertinent thereto.
    (d) If the Administrator, RSPA, affirms the order in whole or in 
part, the respondent must comply with the terms of the decision within 
20 days of the respondent's receipt thereof, or within the time 
prescribed in the order. If the respondent does not comply with the 
terms of the decision within 20 days of receipt, or within the time 
prescribed in the order, the case may be referred to the Attorney 
General for action to enforce the terms of the decision.
    (e) The filing of an appeal stays the effectiveness of an order 
issued under Sec. 107.317 or Sec. 107.323. However, if the 
Administrator, RSPA, determines that it is in the public interest, he 
may keep an order directing compliance in force pending appeal.
[][Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended at 50 FR 45730, 
Nov. 1, 1985; Amdt. 107-22, 55 FR 39978, Oct. 1, 1990]



Sec. 107.327  Compromise and settlement.

    (a) At any time before an order issued under Sec. 107.317 or 
Sec. 107.323 is referred to the Attorney General for enforcement, the 
respondent or the Office of Chief Counsel may propose a compromise as 
follows:
    (1) In civil penalty cases, the respondent or Chief Counsel may 
offer to compromise the amount of the penalty by submitting an offer for 
a specific amount to the other party. An offer of compromise by the 
respondent shall be submitted to the Chief Counsel who may, after 
consultation with Associate Administrator for Hazardous Materials 
Safety, accept or reject it.
    (i) A compromise offer stays the running of any response period then 
outstanding.
    (ii) If a compromise is agreed to by the parties, the respondent is 
notified in writing. Upon receipt of payment by Office of Chief Counsel, 
the respondent is notified in writing that acceptance of payment is in 
full satisfaction of the civil penalty proposed or assessed, and Office 
of Chief Counsel closes the case with prejudice to the respondent.
    (iii) If a compromise cannot be agreed to, the respondent is 
notified in writing and is given 10 days or the amount of time remaining 
in the then outstanding response period, whichever is longer, to respond 
to whatever action was taken by the Office of Chief Counsel or the 
Administrator, RSPA.
    (2) In compliance order cases, the respondent may propose a consent 
agreement to the Chief Counsel. If the Chief Counsel accepts the 
agreement, he issues an order in accordance with its terms. If the Chief 
Counsel rejects the agreement, he directs that the proceeding continue. 
An agreement submitted to the Chief Counsel must include:

[[Page 36]]

    (i) A statement of any allegations of fact which the respondent 
challenges;
    (ii) The reasons why the terms of a compliance order or proposed 
compliance order are or would be too burdensome for the respondent, or 
why such terms are not supported by the record in the case;
    (iii) A proposed compliance order suitable for issuance by the Chief 
Counsel;
    (iv) An admission of all jurisdictional facts; and
    (v) An express waiver of further procedural steps and all right to 
seek judicial review or otherwise challenge or contest the validity of 
the order.
    (b) Notwithstanding paragraph (a)(1) of this section, the respondent 
or Office of Chief Counsel may propose to settle the case. If the Chief 
Counsel agrees to a settlement, the respondent is notified and the case 
is closed without prejudice to the respondent.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended at 50 FR 45730, 
Nov. 1, 1985; Amdt. 107-24, 56 FR 8621, Feb. 28, 1991; 56 FR 15510, Apr. 
17, 1991; Amdt. 107-29, 58 FR 51527, Oct. 1, 1993]



Sec. 107.329  Maximum penalties.

    (a) A person who knowingly violates a requirement of the Federal 
hazardous material transportation law, an order issued thereunder, this 
subchapter, subchapter C of this chapter, or an exemption issued under 
this subchapter applicable to the transporting of hazardous materials or 
the causing of them to be transported or shipped is liable for a civil 
penalty of not more than $25,000 ($27,500 for a violation occurring 
after January 21, 1997) and not less than $250 for each violation. When 
the violation is a continuing one, each day of the violation constitutes 
a separate offense.
    (b) A person who knowingly violates a requirement of the Federal 
hazardous material transportation law, and order issued thereunder, this 
subchapter, subchapter C of this chapter, or an exemption issued under 
this subchapter applicable to the manufacture, fabrication, marking, 
maintenance, reconditioning, repair, or testing of a packaging or 
container which is represented, marked, certified or sold by that person 
as being qualified for use in the transportation of hazardous materials 
in commerce is liable for a civil penalty of not more than $25,000 
($27,500 for a violation occurring after January 21, 1997) and not less 
than $250 for each violation.
[Amdt. 107-24, 56 FR 8624, Feb. 28, 1991, as amended by Amdt. 107-32, 59 
FR 49131, Sept. 26, 1994; Amdt. 17-40, 62 FR 2971, Jan. 21, 1997]



Sec. 107.331  Assessment considerations.

    After finding a knowing violation under this subpart, the Office of 
Chief Counsel assesses a civil penalty taking the following into 
account:
    (a) The nature and circumstances of the violation;
    (b) The extent and gravity of the violation;
    (c) The degree of the respondent's culpability;
    (d) The respondent's prior violations;
    (e) The respondent's ability to pay;
    (f) The effect on the respondent's ability to continue in business; 
and
    (g) Such other matters as justice may require.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-30, 58 
FR 50500, Sept. 27, 1993; Amdt. 107-38, 61 FR 21100, May 9, 1996]

                           Criminal Penalties



Sec. 107.333  Criminal penalties generally.

    A person who knowingly violates Sec. 171.2(g) or willfully violates 
a provision of the Federal hazardous material transportation law or an 
order or regulation issued thereunder shall be fined under title 18, 
United States Code, or imprisoned for not more than 5 years, or both.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-32, 59 
FR 49131, Sept. 26, 1994]



Sec. 107.335  Referral for prosecution.

    If the Associate Administrator for Hazardous Materials Safety 
becomes aware of a possible willful violation of the Federal hazardous 
material transportation law, this subchapter, subchapter C of this 
chapter, or any exemption, or order issued thereunder, for which the 
Associate Administrator for Hazardous Materials Safety exercises 
enforcement responsibility, it shall report it to the Office of the 
Chief

[[Page 37]]

Counsel, Research and Special Programs Administration, U.S. Department 
of Transportation, Washington, DC 20590-0001. If appropriate, the Chief 
Counsel refers the report to the Department of Justice for criminal 
prosecution of the offender.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-22, 55 
FR 39978, Oct. 1, 1990; Amdt. 107-24, 56 FR 8621, Feb. 28, 1991; 56 FR 
15510, Apr. 17, 1991; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994; Amdt. 
107-35, 60 FR 49108, Sept. 21, 1995]



Sec. 107.336  Limitation on fines and penalties.

    If a State or political subdivision or Indian tribe assesses any 
fine or penalty determined by the Secretary to be appropriate for a 
violation concerning a subject listed in Sec. 107.202(a), no additional 
fine or penalty may be assessed for such violation by any other 
authority.
[Amdt. 107-24, 56 FR 8624, Feb. 28, 1991]

                            Injunctive Action



Sec. 107.337  Injunctions generally.

    Whenever it appears to the Office of Chief Counsel that a person has 
engaged, or is engaged, or is about to engage in any act or practice 
constituting a violation of any provision of the Federal hazardous 
material transportation law, this subchapter, subchapter C of this 
chapter, or any exemption, or order issued thereunder, for which the 
Office of Chief Counsel exercises enforcement responsibility, the 
Administrator, RSPA, or his delegate, may request the Attorney General 
to bring an action in the appropriate United States District Court for 
such relief as is necessary or appropriate, including mandatory or 
prohibitive injunctive relief, interim equitable relief, and punitive 
damages as provided by 49 U.S.C. 5122(a).
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-32, 59 
FR 49131, Sept. 26, 1994]



Sec. 107.339  Imminent hazards.

    Whenever it appears to the Office of the Chief Counsel that there is 
a substantial likelihood that death, serious illness, or severe personal 
injury will result from the transportation of a particular hazardous 
material or hazardous materials container, before a compliance order 
proceeding or other administrative hearing or formal proceeding to abate 
the risk of that harm can be completed, the Administrator, RSPA, or his 
delegate, may bring an action under 49 U.S.C. 5122(b) in the appropriate 
United States District Court for an order suspending or restricting the 
transporation of that hazardous material or those containers or for such 
other equitable relief as is necessary or appropriate to ameliorate the 
hazard.
[Amdt. 107-11, 48 FR 2651, Jan. 20, 1983, as amended by Amdt. 107-15, 51 
FR 34987, Oct. 1, 1986; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994]

   Appendix A to Subpart D of Part 107--Guidelines for Civil Penalties

    I. This appendix sets forth the guidelines used by the Office of 
Hazardous Materials Safety (as of January 18, 1995) in making initial 
baseline determinations for recommending civil penalties. The first part 
of these guidelines is a list of baseline amounts or ranges for probable 
violations frequently cited in enforcement reports referred for action. 
Following the list of violations are general guidelines used by OHMS in 
making initial penalty determinations in enforcement cases.

                 II. List of Frequently Cited Violations

                                                                        
------------------------------------------------------------------------
    Violation description        Section or cite     Baseline assessment
------------------------------------------------------------------------
                         PART 107--REQUIREMENTS                         
------------------------------------------------------------------------
Failure to register as a      107.608.............  $1,000 +, $500 each 
 carrier or shipper of                               add'l year.        
 hazardous material.                                                    
------------------------------------------------------------------------
                         PART 171--REQUIREMENTS                         
------------------------------------------------------------------------
Failure to give immediate     171.15..............  $3,000.             
 telephone notice of a                                                  
 reportable hazardous                                                   
 materials incident.                                                    
Failure to file a DOT 5800.1  171.16..............  $500 to $2,500.     
 Hazardous Materials                                                    
 Incident Report within 30                                              
 days following an                                                      
 unintentional release of                                               
 hazardous materials in                                                 
 transportation.                                                        
------------------------------------------------------------------------

[[Page 38]]

                                                                        
                         PART 172--REQUIREMENTS                         
------------------------------------------------------------------------
Shipping Papers (Sec.                                                   
 172.200--172.205):                                                     
    Failure to execute a      172.201.............  $3,000 to $6,000.   
     shipping paper for a                                               
     shipment of hazardous                                              
     materials.                                                         
    Failure to follow one or  172.201(a)(1).......  $1,200.             
     more of the three                                                  
     approved formats for                                               
     listing hazardous                                                  
     materials on a shipping                                            
     paper.                                                             
    Failure to include a      172.202.............  $800 to $1,600.     
     proper shipping name in                                            
     the shipping                                                       
     description or using an                                            
     incorrect proper                                                   
     shipping name.                                                     
    Failure to include a      172.202.............  $1,000 to $2,000.   
     hazard class/division                                              
     number in the shipping                                             
     description.                                                       
    Using an incorrect        172.202.............                      
     hazard class/                                                      
     identification number.                                             
        -that does not          ..................  $800,               
         affect                                                         
         compatibility                                                  
         requirements.                                                  
        -that affects           ..................  $3,000 to $6,000.   
         compatibility                                                  
         requirements.                                                  
    Failure to include an     172.202.............  $1,000 to $2,000.   
     identification number                                              
     in the shipping                                                    
     description.                                                       
    Using an incorrect        172.202.............                      
     identification number.                                             
        -that does not          ..................  $800,               
         change the response                                            
         information.                                                   
        -that changes the       ..................  $3,000 to $6,000.   
         response                                                       
         information.                                                   
    Using a shipping          172.202.............  $800.               
     description that                                                   
     includes additional                                                
     unauthorized                                                       
     information (extra or                                              
     incorrect words).                                                  
    Using a shipping          172.202.............  $500.               
     description not in                                                 
     required sequence.                                                 
    Using a shipping          172.202.............                      
     description with two or                                            
     more required elements                                             
     missing or incorrect.                                              
        -such that the          ..................  $3,000.             
         material is                                                    
         misdescribed.                                                  
        -such that the          ..................  $6,000.             
         material is                                                    
         misclassified.                                                 
    Failure to include the    172.202(c)..........  $400.               
     total quantity of                                                  
     hazardous material                                                 
     covered by a shipping                                              
     description.                                                       
    The letters ``RQ'' are    172.203(c)(2).......  $500.               
     not used in the                                                    
     shipping description to                                            
     identify materials that                                            
     are hazardous                                                      
     substances.                                                        
    Using a shipping          172.203(d)..........  $2,000 to $4,000.   
     description for Class 7                                            
     (radioactive) material                                             
     that fails to contain                                              
     the required additional                                            
     entries, or contains                                               
     incorrect information                                              
     for these additional                                               
     entries.                                                           
    Failure to include a      172.203(k)..........  $1,000.             
     required technical name                                            
     in parentheses for a                                               
     listed generic or                                                  
     ``nos'' material.                                                  
    Failure to list an        172.203(a)..........  $800.               
     exemption number in                                                
     association with the                                               
     shipping description.                                              
    Failure to include the    172.204(a)..........  $1,000.             
     required shipper's                                                 
     certification on a                                                 
     shipping paper.                                                    
    Failure to execute the    172.204.............  $800.               
     required shipper's                                                 
     certification on a                                                 
     shipping paper.                                                    
Emergency Response                                                      
 Information Requirements                                               
 (Sec.  172.600--172.604):                                              
    Providing or listing      172.602.............                      
     incorrect emergency                                                
     response information                                               
     with or on a shipping                                              
     paper.                                                             
        -no significant         ..................  $800,               
         difference in                                                  
         response.                                                      
        -significant            ..................  $3,000 to $6,000.   
         difference in                                                  
         response.                                                      
    Failure to include an     172.604.............  $2,600.             
     emergency response                                                 
     telephone number on a                                              
     shipping paper.                                                    
    Failure to have the       172.604.............  $1,300.             
     emergency response                                                 
     telephone number                                                   
     monitored while a                                                  
     hazardous material is                                              
     in transportation or                                               
     listing multiple                                                   
     telephone numbers                                                  
     (without specifying the                                            
     times for each) that                                               
     are not monitored 24                                               
     hours a day.                                                       
    Listing a fraudulent      172.604.............  $2,600 to $4,200.   
     emergency response                                                 
     telephone number on a                                              
     shipping paper.                                                    
    Listing an incorrect or   172.604.............  $1,300.             
     non-working emergency                                              
     response telephone                                                 
     number on a shipping                                               
     paper.                                                             
    Failure to provide        172.604.............  $1,300.             
     required technical                                                 
     information when the                                               
     listed emergency                                                   
     response telephone                                                 
     number is contacted.                                               
Package Marking Requirements                                            
 (Sec.  172.300--172.338):                                              
    Failure to mark the       172.301(a)..........  $800 to $1,600.     
     proper shipping name on                                            
     a package or marking an                                            
     incorrect shipping name                                            
     on a package.                                                      
    Failure to mark the       172.301(a)..........  $1,000 to $2,000.   
     identification number                                              
     on a package.                                                      
    Marking a package with    172.301(a)..........                      
     an incorrect                                                       
     identification number.                                             
        -that does not          ..................  $800,               
         change the response                                            
         information.                                                   
        -that changes the       ..................  $3,000 to $6,000.   
         response                                                       
         information.                                                   
    Failure to mark the       172.301(a)..........  $3,000 to $6,000.   
     proper shipping name                                               
     and identification                                                 
     number on a package.                                               
    Marking a package with    172.301(a)..........                      
     an incorrect shipping                                              
     name and identification                                            
     number.                                                            
        -that does not          ..................  $1,500 to $3,000.   
         change the response                                            
         information.                                                   
        -that changes the       ..................  $3,000 to $6,000.   
         response                                                       
         information.                                                   
    Failure to include the    172.301(c)..........  $1,000.             
     required technical                                                 
     name(s) in parentheses                                             
     for a listed generic or                                            
     ``no'' entry.                                                      
    Failure to mark a         172.312.............  $2,500 to $3,500.   
     package containing                                                 
     liquid hazardous                                                   
     materials with required                                            
     orientation marks.                                                 
Package Labeling                                                        
 Requirements (Sec.  172.400-                                           
 172.450):                                                              
    Failure to label a        172.400.............  $5,000.             
     package..                                                          

[[Page 39]]

                                                                        
    Placing a label that      172.400.............  $5,000.             
     represents a hazard                                                
     other than the hazard                                              
     presented by the                                                   
     hazardous material in                                              
     the package..                                                      
    Placing a label on a      172.401(a)..........  $800.               
     package that does not                                              
     contain a hazardous                                                
     material..                                                         
    Placing a label on Class  172.403.............  $5,000.             
     7 (radioactive)                                                    
     material that                                                      
     understates the proper                                             
     label category..                                                   
    Placing a label on Class  172.403(g)..........  $2,000 to $4,000.   
     7 (radioactive)                                                    
     material that fails to                                             
     contain, or has                                                    
     erroneous, entries for                                             
     the name of the                                                    
     radionuclide(s),                                                   
     activity, and transport                                            
     index..                                                            
    Placing a label not       172.407(c)..........  $800.               
     conforming to size                                                 
     requirements on a                                                  
     package..                                                          
    Placing a label on a      172.406(a)..........  $800.               
     different surface of                                               
     the package than, or                                               
     far away from, the                                                 
     proper shipping name..                                             
    Placing a label that      172.407(d)..........  $600 to $2,500.     
     does not meet color                                                
     specification                                                      
     requirements on a                                                  
     package (depending on                                              
     the variance)..                                                    
    Failure to place a        172.402.............  $500 to $2,500.     
     required subsidiary                                                
     label on a package..                                               
    Failure to provide an     172.411.............  $2,500.             
     appropriate class or                                               
     division number on a                                               
     label..                                                            
Placarding Requirements                                                 
 (Sec.  172.500-172.560):                                               
    Failure to properly       172.504.............  $1,000 to $9,000.   
     placard a freight                                                  
     container or vehicle                                               
     containing hazardous                                               
     materials when Table 1                                             
     is applicable..                                                    
    Failure to properly       172.504.............  $800 to $7,500.     
     placard a freight                                                  
     container or vehicle                                               
     containing hazardous                                               
     materials when Table 2                                             
     is applicable..                                                    
Training Requirements (Sec.                                             
 172.700-172.704):                                                      
    Failure to train hazmat   172.702.............                      
     employees in the three                                             
     required areas of                                                  
     training.                                                          
        -more than 10 hazmat  ....................  $2,400 and up.      
         employees..                                                    
        -10 hazmat employees  ....................  $1,500 and up.      
         or less..                                                      
    Failure to train hazmat   172.702.............                      
     employees in any one of                                            
     the three required                                                 
     areas of training.                                                 
        -more than 10 hazmat  ....................  $800 and up.        
         employees..                                                    
        -10 hazmat employees  ....................  $500 and up.        
         or less..                                                      
    Failure to maintain       172.704.............                      
     training records.                                                  
        -more than 10 hazmat  ....................  800 and up.         
         employees..                                                    
        -10 hazmat employees  ....................  $500 and up.        
         or less..                                                      
------------------------------------------------------------------------
                         PART 173--REQUIREMENTS                         
------------------------------------------------------------------------
Overpack Requirements (Sec.                                             
 173.25)                                                                
    Failure to mark an        173.25(a)(4)........  $3,000.             
     overpack with a                                                    
     statement indicating                                               
     that the inside                                                    
     packages comply with                                               
     prescribed                                                         
     specifications when                                                
     specification packaging                                            
     is required..                                                      
Reconditioner Requirements                                              
 (Sec. 173.28):                                                         
    Representing, marking,    173.28(c) & (d).....  $6,000 to $10,800.  
     or certifying a drum as                                            
     a reconditioned UN                                                 
     standard packaging,                                                
     when the drum did not                                              
     meet a UN standard..                                               
    Marking an incorrect      173.28(b)(2)(ii)....                      
     registration number on                                             
     a reconditioned                                                    
     packaging.                                                         
        -incorrect number...  ....................  $800.               
        -fraudulent use of    ....................  $7,200.             
         another                                                        
         reconditioner's                                                
         number..                                                       
    Failure to properly       173.28(b)(2)(i).....                      
     conduct alternate                                                  
     leakage test.                                                      
        -improper test......  ....................  $2,000.             
        -no test at all.....  ....................  $4,000.             
    Representing, marking,    173.28(d)...........  $500.               
     or certifying a drum as                                            
     altered from one                                                   
     standard to another,                                               
     when the drum had not                                              
     actually been altered..                                            
Portable and IM Tank                                                    
 Requirements (Secs.                                                    
 173.32(e), 173.32c,                                                    
 173.315)                                                               
    Offering hazardous        173.32(a)(1),         $3,500 to $7,000.   
     materials for             173.315(a),                              
     transportation in a DOT   Applicable                               
     specification or          Exemption.                               
     exemption portable tank                                            
     which is out of test..                                             
    Offering an IM portable   173.32c(c)..........  $3,500.             
     tank for transportation                                            
     that has not been                                                  
     hydrostatically tested                                             
     within the last 2\1/2\                                             
     years per 173.32b(a)..                                             
    Offering an IM portable   173.32c(c)..........  $3,500.             
     tank for transportation                                            
     that has not been                                                  
     visually inspected in                                              
     last five years per                                                
     173.32b(b)..                                                       
    Offering an IM portable   173.32c(c)..........  $7,000.             
     tank for transportation                                            
     that has not been                                                  
     visually or                                                        
     hydrostatically tested                                             
     as required, or failing                                            
     to remove the safety                                               
     relief valves during                                               
     testing..                                                          
    Offering a hazardous      173.32c(g)..........                      
     material for                                                       
     transportation in an IM                                            
     portable tank equipped                                             
     with bottom outlets,                                               
     when the material                                                  
     contained is prohibited                                            
     from being offered in                                              
     this type of packaging.                                            
        -Packing Group II...  ....................  $7,000.             
        -Packing Group III..  ....................  $5,000.             
    Failure to provide the    173.32c(k)..........  $6,000 to $12,000.  
     required outage for a                                              
     shipment of hazardous                                              
     materials, that results                                            
     in the release of                                                  
     hazardous materials..                                              
    Offering a hazardous      173.32(e)(3),         $3,000.             
     material for              173.32b(d).                              
     transportation in an                                               
     DOT, exemption, or IM                                              
     portable tank which                                                
     fails to bear markings                                             
     that it has been                                                   
     properly retested..                                                
Cylinder Retesters (Secs.                                               
 173.23, 173.34, and                                                    
 173.302):                                                              
    Failure to remark as DOT  173.23(c)...........  $600.               
     3AL an aluminum                                                    
     cylinder manufactured                                              
     under a former                                                     
     exemption..                                                        
    Certifying or marking as  173.34..............  $800.               
     retested a                                                         
     nonspecification                                                   
     cylinder.                                                          

[[Page 40]]

                                                                        
    Marking a cylinder in or  173.34(c)(1)........  $6,000 to $10,800.  
     on the sidewall area                                               
     when not permitted by                                              
     the applicable                                                     
     specification.                                                     
    Failure to maintain       173.34(c)...........  $800.               
     legible markings on a                                              
     cylinder.                                                          
    Failure to perform        173.34(e)...........  $2,100 to $5,200.   
     hydrostatic retesting                                              
     at the minimum of 5/3                                              
     times the service                                                  
     pressure, or at the                                                
     minimum specified test                                             
     pressure.                                                          
    Failure to conduct a      173.34(e)(3)........  $2,100 to $5,200.   
     complete visual                                                    
     external and internal                                              
     examination.                                                       
    Failure to have a         173.34(e)(2)(i).....  $4,000.             
     retester's                                                         
     identification number                                              
     (RIN).                                                             
    Failure to have current   173.34)(e)(2)(i)....  $2,000.             
     authority due to                                                   
     failure to renew a                                                 
     retester's                                                         
     identification number.                                             
    Failure to have a         173.34(e)(2)(i).....  $7,200.             
     retester's                                                         
     identification number                                              
     and marking another RIN                                            
     on a cylinder.                                                     
    Marking a RIN before      173.34(e)(1)(ii)....  $800.               
     successfully completing                                            
     a hydrostatic retest.                                              
    Requalifying a DOT        173.34(e)(1)(ii)....  $4,200 to $10,400.  
     cylinder without                                                   
     performing the visual                                              
     inspection or                                                      
     hydrostatic retest.                                                
    Performing hydrostatic    173.34(e)(4)........  $2,100 to $5,200.   
     retesting without                                                  
     demonstrating the                                                  
     accuracy of the testing                                            
     equipment.                                                         
    Failure to hold           173.34(e)(4)........  $3,100.             
     hydrostatic test                                                   
     pressure for 30 seconds                                            
     or sufficiently longer                                             
     to allow for complete                                              
     expansion.                                                         
    Failure to perform a      173.34(e)(4)........  $3,100.             
     second retest, after                                               
     equipment failure, at a                                            
     pressure of 10% more or                                            
     100 psi more, whichever                                            
     is less (includes                                                  
     exceeding 90% of test                                              
     pressure prior to                                                  
     conducting a retest).                                              
    Failure to condemn a      173.34(e)(6)........  $10,000.            
     cylinder with permanent                                            
     expansion of 10% or                                                
     greater (5% for certain                                            
     exemption cylinders);                                              
     failure to condemn                                                 
     cylinders with evidence                                            
     of internal or external                                            
     corrosion, denting,                                                
     bulging, or rough usage.                                           
    Marking an FRP cylinder   Applicable Exemption  $6,000 to $10,800.  
     with steel stamps in                                               
     the FRP area of the                                                
     cylinder such that the                                             
     integrity of the                                                   
     cylinder is compromised.                                           
    Failure to keep complete                                            
     and accurate records of                                            
     cylinder reinspection                                              
     and retest.                                                        
        --No records kept...  ....................  $4,000.             
        --Incomplete or       173.34(e)(8)........  $1,000 to $3,000.   
         inaccurate records.                                            
    Improper marking of the   173.34(e)(7)........  $800                
     RIN or retest date on a                                            
     cylinder.                                                          
    Marking a DOT 3HT         173.34(e)(15).......  $6,000 to $10,800.  
     cylinder with a steel                                              
     stamp other than a low-                                            
     stress steel stamp.                                                
    Marking a ``+'' sign on   173.302(c)(3).......  $3,000 to $4,000.   
     a cylinder without                                                 
     determining the average                                            
     or maximum wall stress,                                            
     by calculation or                                                  
     reference to CGA                                                   
     Pamphlet C-5.                                                      
    Representing, marking,    171.2(c), Applicable  $2,000 to $6,000.   
     or certifying a           Exemption.                               
     cylinder as meeting the                                            
     requirements of an                                                 
     exemption, when the                                                
     cylinder was not                                                   
     maintained or retested                                             
     in accordance with the                                             
     exemption.                                                         
Rebuilder Requirements (Sec.                                            
 173.34):                                                               
    Representing a DOT-4      173.34(l)...........  $6,000 to $10,800.  
     series cylinder as                                                 
     meeting the                                                        
     requirements of the                                                
     Hazardous Materials                                                
     Regulations without                                                
     being authorized to do                                             
     so by the Associate                                                
     Administrator for                                                  
     Hazardous Materials                                                
     Safety.                                                            
Offeror Requirements                                                    
 (General):                                                             
    Offering a hazardous      Various.............                      
     material for                                                       
     transportation in an                                               
     unauthorized non-UN                                                
     standard or                                                        
     nonspecification                                                   
     packaging (includes the                                            
     failure to comply with                                             
     the terms of an                                                    
     exemption authorizing                                              
     the use of a                                                       
     nonstandard or                                                     
     nonspecification                                                   
     packaging).                                                        
        --Packing Group I     ....................  $9,000.             
         (includes Sec. 172                                             
         504 Table 1                                                    
         materials).                                                    
        --Packing Group II..  ....................  $7,000.             
        -Packing Group III..  ....................  $5,000.             
    Offering a hazardous      178.3(a), 178.503(a)  $3,600.             
     material for                                                       
     transportation in a                                                
     packaging that has                                                 
     successfully been                                                  
     tested to an applicable                                            
     UN standard, but is not                                            
     marked with the                                                    
     required UN marking.                                               
    Offering a hazardous      173.24(b)...........                      
     material for                                                       
     transportation in a                                                
     packaging that leaks                                               
     during conditions                                                  
     normally incident to                                               
     transportation.                                                    
        --Packing Group I     ....................  $12,000.            
         (includes Sec.                                                 
         172.504 Table 2                                                
         materials).                                                    
        --Packing Group II..  ....................  $9,000.             
        --Packing Group III.  ....................  $6,000.             
    Overfilling a package so  173.24(b)...........                      
     that the effectiveness                                             
     is substantially                                                   
     reduced.                                                           
        --Packing Group I     ....................  $9,000.             
         (includes Sec.                                                 
         172.504 Table 1                                                
         materials).                                                    
        --Packing Group II..  ....................  $6,000.             
        --Packing Group III.  ....................  $3,000.             
    Offering a hazardous      171.14..............                      
     material for                                                       
     transportation after                                               
     October 1, 1996, in an                                             
     unauthorized non-UN                                                
     standard packaging                                                 
     marked as manufactured                                             
     to a DOT specification.                                            
        --packaging meets     ....................  $3,000.             
         DOT specification.                                             
        --packaging does not  ....................  $5,000 to $9,000.   
         meet DOT                                                       
         specification.                                                 
Offeror Requirements (Class                                             
 1--Explosives):                                                        
------------------------------------------------------------------------
    Failing to mark the       172.320.............  $1,200.             
     ``EX'' approval number                                             
     on a package containing                                            
     an explosive.                                                      
    Offering an unapproved    173.54 and 173.56(b)                      
     explosive for                                                      
     transportation.                                                    

[[Page 41]]

                                                                        
        --Div 1.3 & 1.4       ....................  $5,0000 to $10,000. 
         fireworks meeting                                              
         the chemistry                                                  
         requirements (both                                             
         quantity and type)                                             
         of APA Standard 87-                                            
         1.                                                             
        --all other           ....................  $10,000 to $27,500. 
         explosives                                                     
         (including                                                     
         forbidden                                                      
         explosives).                                                   
    Offering a leaking or     173.54(c)...........  $10,000 to $27,500. 
     damaged package of                                                 
     explosives for                                                     
     transportation.                                                    
Offeror Requirements (Class                                             
 7--Radioactive Materials):                                             
    Offering a DOT            173.415(a), 173.461.                      
     specification 7A                                                   
     packaging without                                                  
     maintaining complete                                               
     documentation of tests                                             
     and an engineering                                                 
     evaluation or                                                      
     comparative data.                                                  
        -tests and            ....................  $8,400.             
         evaluation not                                                 
         performed.                                                     
        -complete records     ....................  $2,000 to $5,000.   
         not maintained.                                                
    Offering a Type B         173.471(a)..........                      
     packaging without                                                  
     holding a valid NRC                                                
     approval certificate.                                              
        -never having         ....................  $2,500.             
         obtained one.                                                  
        -holding an expired   ....................  $1,000.             
         certificate.                                                   
    Offering a limited        177.421(d)..........  $5,000 and up.      
     quantity of radioactive                                            
     materials without                                                  
     marking the inner (or                                              
     single) packaging                                                  
     ``Radioactive.''                                                   
    Offering low specific     173.427(a)(6).......  $800.               
     activity (LSA)                                                     
     radioactive materials                                              
     consigned as exclusive                                             
     use without providing                                              
     instructions for                                                   
     maintenance of                                                     
     exclusive use shipment                                             
     controls.                                                          
    Offering a package that   173.441.............  $10,000 and up.     
     exceeds the permitted                                              
     limits for surface                                                 
     radiation or transport                                             
     index.                                                             
    Offering a package        173.443.............  $5,000 and up.      
     without determining the                                            
     level of removable                                                 
     external contamination,                                            
     or that exceeds the                                                
     limit for removable                                                
     external contamination.                                            
    Storing packages of       173.447(a)..........  $5,000 and up.      
     radioactive material in                                            
     a group with a total                                               
     transport index more                                               
     than 50.                                                           
    Offering special form     173.476(a) & (b)....  $2,500.             
     radioactive materials                                              
     without maintaining a                                              
     complete safety                                                    
     analysis or Certificate                                            
     of Competent Authority.                                            
Offeror Requirements                                                    
 (Cylinders):                                                           
    Offering a compressed     173.301(c)..........  $4,200 to $10,400.  
     gas for transportation                                             
     in a cylinder that is                                              
     out of test.                                                       
    Failure to check each     173.303(d)..........  $5,000.             
     day the pressure of a                                              
     cylinder charged with                                              
     acetylene that is                                                  
     representative of that                                             
     day's compression,                                                 
     after the cylinder has                                             
     cooled to a settled                                                
     temperature, or failure                                            
     to keep a record of                                                
     this test for at least                                             
     30 days.                                                           
    Offering a limited        173.306(a)(3), (h)..  $1,500 to $6,000.   
     quantity of a                                                      
     compressed gas in a                                                
     metal container for the                                            
     purpose of propelling a                                            
     nonpoisonous material                                              
     and failing to heat the                                            
     cylinder until the                                                 
     pressure is equivalent                                             
     to the equilibrium                                                 
     pressure at 130 deg. F,                                            
     without evidence of                                                
     leakage, distortion, or                                            
     other defect.                                                      
------------------------------------------------------------------------
                         PART 178--REQUIREMENTS                         
------------------------------------------------------------------------
Third-Party Packaging                                                   
 Certifiers (General):                                                  
    Issuing a certification   1171.2(e),            $500 per item.      
     that directs the          1178.2(b),                               
     packaging manufacturer    178.3(a),                                
     to improperly mark a      178.503(a).                              
     packaging (e.g., steel                                             
     drum to be marked UN                                               
     4G).                                                               
Manufacturers (General):                                                
    Failure to insure a       178.601(b)..........                      
     packaging certified as                                             
     meeting the UN standard                                            
     is capable of passing                                              
     the required                                                       
     performance testing.                                               
        --Packing Group I     ....................  $10,800.            
         (includes Sec.                                                 
         172.504 Table 1                                                
         materials).                                                    
        --Packing Group II..  ....................  $8,400.             
        --Packing Group III.  ....................  $6,000.             
    Certifying a packaging    178.601(d)..........                      
     as meeting a UN                                                    
     standard when design                                               
     qualification testing                                              
     was not performed.                                                 
        --Packing Group I     ....................  $10,800.            
         (includes Sec. 172                                             
         504 Table 2                                                    
         materials).                                                    
        --Packing Group II..  ....................  $8,400.             
        --Packing Group III.  ....................  $6,000.             
    Failure to conduct        178.601(e)..........  $2,000 to $10,800.  
     periodic retesting on                                              
     UN standard packaging                                              
     (depending on length of                                            
     time and Packing Group).                                           
    Failure to properly       ....................                      
     conduct testing for UN                                             
     standard packaging                                                 
     (e.g., testing with                                                
     less weight than marked                                            
     on packaging; drop                                                 
     testing from lesser                                                
     height than required;                                              
     failing to condition                                               
     fiberboard boxes before                                            
     design test).                                                      
        --design              178.601(d)..........  $2,000 to $10,800.  
         qualification                                                  
         testing.                                                       
        --periodic retesting  178.601(e)..........  $500 to $10,800.    
    Marking, or causing the   178.2(b), 178.3(a),   $7,200.             
     marking of, a packaging   178.503(a)(8).                           
     with the symbol of a                                               
     manufacturer or                                                    
     packaging certifier                                                
     other than the company                                             
     that actually                                                      
     manufactured or                                                    
     certified the packaging.                                           
    Failure to maintain       178.601(1)..........                      
     testing records.                                                   
        --design              ....................  $1,000 to $5,000.   
         qualification                                                  
         testing.                                                       
        --periodic retesting  ....................  $500 to $2,000.     
    Improper marking of UN    178.503.............  $500 per item.      
     certification.                                                     
    Manufacturing DOT         171.14                                    
     specification packaging                                            
     after October 1, 1994                                              
     that is not marked as                                              
     meeting a UN                                                       
     performance standard.                                              

[[Page 42]]

                                                                        
        --if packaging does   ....................  $3,000.             
         meet DOT                                                       
         specification.                                                 
        --if packaging does   ....................  $6,000 to $10,800.  
         not meet DOT                                                   
         specification.                                                 
Manufacturing Requirements--                                            
 Drums                                                                  
    Failure to properly       178.604(b)(1)                             
     conduct production                                                 
     leakproofness test.                                                
        --improper testing..  173.28..............  $2,000.             
        --no testing          ....................  $2,000 to $10,800.  
         performed.                                                     
Manufacturing Requirements--                                            
 Cylinders                                                              
    Manufacturing,            Various.............  $7,500 to $15,000.  
     representing, marking,                                             
     certifying, or selling                                             
     a DOT high-pressure                                                
     cylinder that was not                                              
     inspected and verified                                             
     by an approved                                                     
     independent inspection                                             
     agency.                                                            
    Failure to have a         Various.............  $800.               
     registration number or                                             
     failure to mark the                                                
     registration number on                                             
     the cylinder.                                                      
    Marking another           Various.............  $7,200.             
     company's number on a                                              
     cylinder.                                                          
    Failure to mark the date  178.65..............  $3,000.             
     of manufacture or lot                                              
     number on a DOT-39                                                 
     cylinder.                                                          
    Failure to have a         Various.............  $5,000.             
     chemical analysis                                                  
     performed in the US for                                            
     a material manufactured                                            
     outside the US/failure                                             
     to obtain a chemical                                               
     analysis from the                                                  
     foreign manufacturer.                                              
    Failure to meet wall      Various.............  $7,500 to $15,000.  
     thickness requirements.                                            
    Failure to heat treat     Various.............  $5,000 to $15,000.  
     cylinders prior to                                                 
     testing.                                                           
    Failure to conduct a      Various.............  $2,500 to $6,200.   
     complete visual                                                    
     internal examination.                                              
    Failure to conduct a      Various.............  $2,500 to $6,200.   
     hydrostatic test, or                                               
     conducting a                                                       
     hydrostatic test with                                              
     inaccurate test                                                    
     equipment.                                                         
    Failure to conduct a      Various.............  $7,500 to $15,000.  
     flattening test.                                                   
    Failure to conduct a      178.65-11...........  $5,000 to $15,000.  
     burst test on a DOT-39                                             
     cylinder.                                                          
    Failure to have           Various.............  $7,500 to $15,000.  
     inspections and                                                    
     verifications performed                                            
     by an inspector.                                                   
    Failure to maintain a     Various.............                      
     required inspector's                                               
     reports.                                                           
        --no reports at all.  ....................  $5,000.             
        --incomplete or       ....................  $1,000 to $4,000.   
         inaccurate reports.                                            
------------------------------------------------------------------------
                           Other Requirements                           
------------------------------------------------------------------------
Carrier Requirements:                                                   
    Transporting packages of  177.834(a) & (g)....  $3,000.             
     hazardous materials                                                
     that have not been                                                 
     secured against                                                    
     movement within the                                                
     vehicle.                                                           
    Transporting explosives   177.835(i)..........  $5,200.             
     in a motor vehicle                                                 
     containing metal or                                                
     other articles or                                                  
     materials likely to                                                
     damage such explosives                                             
     or any package in which                                            
     they are contained,                                                
     without segregating in                                             
     different parts of the                                             
     load or securing them                                              
     in place in or on the                                              
     motor vehicle and                                                  
     separated by bulkheads                                             
     or other suitable means                                            
     to prevent such damage.                                            
    Transporting railway      171.2(b)............  $7,000.             
     track torpedoes outside                                            
     of flagging kits, in                                               
     violation of E-7991.                                               
    Transporting Class 7       177.842(a).........  $5,000 and up.      
     (radioactive) material                                             
     having a total                                                     
     transport index more                                               
     than 50.                                                           
    Transporting Class 7       177.842(b).........  $5,000 and up.      
     (radioactive) material                                             
     without maintaining the                                            
     required separation                                                
     distance.                                                          
    Failing to comply with    171.2(b)............                      
     requirements of an                                                 
     exemption authorizing                                              
     the transportation of                                              
     Class 7 (radioactive)                                              
     material having a total                                            
     transport index more                                               
     than 50.                                                           
        -failure to have the  ....................  $5,000.             
         radiation survey                                               
         record required by                                             
         Paras.  7(f),                                                  
         8(b)(3).                                                       
        -failure to have      ....................  $500 each.          
         other accompanying                                             
         documents required                                             
         by para. 8(b).                                                 
        -other violations of  ....................  $5,000 and up.      
         Paras.  7 and 8.                                               
Exemptions:                                                             
    Offering or transporting  171.2(a), (b), (c),   $1,000 + $500 each  
     hazardous materials, or   Various.              add'l year.        
     otherwise performing a                                             
     function, covered by an                                            
     exemption after                                                    
     expiration of the                                                  
     exemption.                                                         
------------------------------------------------------------------------

                III. Consideration of Statutory Criteria

    A. These guidelines are used by the Office of Hazardous Materials 
Safety (OHMS) in setting initial proposed penalties for hazmat 
violations. They indicate baseline amounts or ranges for probable 
violations frequently cited in enforcement reports and set forth general 
OHMS policy for considering statutory criteria.
    B. The initial baseline determination partially considers the 
nature, extent, circumstances, and gravity of the alleged violation. 
That determination then is adjusted to consider all other evidence 
concerning the nature, extent, circumstances, and gravity of the alleged 
violation; degree of culpability; history of prior violations; ability 
to pay; effect of the penalty on ability to continue to do business; and 
such other matters as justice may require (a major component of which is 
corrective action taken by a respondent to prevent a recurrence of 
similar violations). In making a penalty recommendation, the baseline or 
range may be increased or decreased on the basis of evidence pertaining 
to these factors.

[[Page 43]]

    C. The following miscellaneous factors are used to implement one or 
more of the statutory assessment criteria.

           IV. Miscellaneous Factors Affecting Penalty Amounts

                          A. Corrective Action

    1. A proposed penalty is mitigated for documented corrective action 
of alleged violations taken by a respondent. Corrective action may 
occur: (1) After an inspection and before a Notice of Probable Violation 
(NOPV) is issued; (2) on receipt of an NOPV; or (3) after receipt of an 
NOPV (possibly after it is solicited by an RSPA attorney). In general, 
corrective action may reduce a penalty up to 25%. Mitigation may be 
taken into account in the referral memo or may be recommended prior to 
issuance of an Order by RSPA's Chief Counsel.
    2. The two primary factors in determining the penalty reduction are 
extent and timing of the corrective action. In other words, mitigation 
will be determined on the basis of how much corrective action was taken 
and when it was taken. Systemic action to prevent future violations is 
given greater consideration than action simply to remedy violations 
identified during the inspection.
    3. Mitigation is applied to individual violations. Thus, in a case 
with two violations, if corrective action for the first violation is 
more extensive than for the second, the penalty for the first will be 
mitigated more than that for the second.

                       B. Respondents That Re-Ship

    A shipper that reships materials received from another company, in 
the same packaging and without opening or altering the package, 
independently is responsible for ensuring that the shipment complies 
with Federal hazmat law, and independently may be subject to enforcement 
action if the package does not comply. Nevertheless, the reshipper is 
considered to have a lesser level of responsibility for compliance in 
those respects in which it reasonably relies on the compliance of the 
package as received. In most cases of this type, OHMS will discount the 
applicable baseline standard by about 25%. The specific knowledge and 
expertise of all parties must be considered in discounting for reliance 
on a prior shipper. This discount is applied before any consideration of 
mitigation based on corrective action.

                C. Penalty Increases for Multiple Counts

    Under the Federal hazmat law, 49 U.S.C. 5213(a), each violation of 
the HMR and each day of a continuing violation (except for violations 
pertaining to packaging manufacture or qualification) is subject to a 
civil penalty of up to $25,000 ($25,500 for a violation occurring after 
January 21, 1997). Absent aggravating factors, OHMS, in its exercise of 
discretion, ordinarily will apply a single penalty for multiple counts 
or days of violation. In a number of cases, particularly those involving 
shippers, an inspector may cite two or more similar packaging violations 
for different hazardous materials. For example, the inspector may cite 
the same marking violation for two or more packages. OHMS usually will 
consider those additional violations as counts of the same violation and 
will not recommend multiples of the same baseline penalty. Rather, OHMS 
usually will recommend the baseline penalty for a single violation, 
increased by 25% for each additional violation.

                       D. Financial Considerations

    1. Mitigation is appropriate when the baseline penalty would (1) 
exceed an amount that the respondent is able to pay, or (2) have an 
adverse effect on the respondent's ability to continue in business. 
These criteria relate to a respondent's entire business, and not just 
the product line or part of its operations involved in the violation(s). 
Beyond the overall financial size of the respondent's business, the 
relevant items of information on a respondent's balance sheet include 
the current ratio (current assets to current liabilities), the nature of 
current assets, and net worth (total assets minus total liabilities).
    2. These figures are considered on a case-by-case basis. In general, 
however, a current ratio close to or below 1.0 means that the company 
may have difficulty in paying a large penalty, and may justify reduction 
of the penalty or an installment payment plan. A small amount of cash on 
hand representing limited liquidity, even with substantial other current 
assets (such as accounts receivable or inventory), may warrant a short-
term payment plan. Respondent's income statement also will be reviewed 
to determine whether a payment plan is appropriate.
    3. Many companies are able to continue in business for extended 
periods of time with a small or negative net worth, and many respondents 
have paid substantial civil penalties in installments even though net 
worth was negative. For this reason, negative net worth alone does not 
always warrant reduction of a proposed penalty or even, in the absence 
of factors discussed above, a payment plan.
    4. In general, an installment payment plan may be justified where 
reduction of a proposed penalty is not, but the appropriateness of 
either (or both) will depend on the circumstances of the case. The 
length of a payment plan should be as short as possible, but the plan 
may consider seasonal fluctuations in a company's income if the 
company's business is seasonal (e.g., swimming pool chemical sales, 
fireworks sales) or if the company has documented specific reasons for 
current non-liquidity.

[[Page 44]]

    5. Evidence of financial condition is used only to decrease a 
penalty, and not to increase it.

                E. Penalty Increases for Prior Violations

    1. The baseline penalty presumes an absence of prior violations. If 
prior violations exist, generally they will serve to increase a proposed 
penalty. The general standard for increasing a baseline proposed penalty 
on the basis of prior violations is as follows:

a. One prior case--25% increase over the pre-mitigation recommended 
penalty
b. Two prior cases--50% increase over the pre-mitigation recommended 
penalty
c. Three prior cases--75% increase over the pre-mitigation recommended 
penalty
d. Four or more prior cases--100% increase over the pre-mitigation 
recommended penalty

    2. A case of prior violations closed more than five years previously 
normally will not be considered in determining a proposed penalty.

           F. Penalty Increases for Use of Expired Exemptions

    Adjustments to the base line figures for use of expired exemptions 
can be made depending on how much material has been shipped during the 
period between the expiration date and the renewal date. If the company 
previously has been found to have operated under an expired exemption, 
the penalty is normally doubled. If the company has been previously 
cited for other violations, the penalty generally will be increased by 
about 25%.
[Amdt. 107-33, 60 FR 12141, Mar. 6, 1995, as amended by Amdt. 107-40, 62 
FR 2972, 2977, Jan. 21, 1997; 62 FR 51556, Oct. 1, 1997]



      Subpart E--Designation of Approval and Certification Agencies



Sec. 107.401  Purpose and scope.

    (a) This subpart establishes procedures for the designation of 
agencies to issue approval certificates and certifications for types of 
packagings designed, manufactured, tested, or maintained in conformance 
with the requirements of this subchapter, subchapter C of this chapter, 
and standards set forth in the United Nations (U.N.) Recommendations 
(Transport of Dangerous Goods). Except for certifications of compliance 
with U.N. packaging standards, this subpart does not apply unless made 
applicable by a rule in subchapter C of this chapter.
    (b) The Associate Administrator for Hazardous Materials Safety may 
issue approval certificates and certifications addressed in paragraph 
(a) of this section.
[Amdt. 107-31, 50 FR 10062, Mar. 13, 1985, as amended by Amdt. 107-23, 
56 FR 66157, Dec. 20, 1991]



Sec. 107.402  Application for designation as an approval or certification agency.

    (a) Any organization or person seeking designation as an approval or 
certification agency shall apply in writing to the Associate 
Administrator for Hazardous Materials Safety (DHM-32), Department of 
Transportation, 400 Seventh Street, SW., Washington DC 20590-0001. Each 
application must be signed and certified to be correct by the applicant 
or, if the applicant is an organization, by an authorized officer or 
official representative of the organization. Any false statement or 
representation, or the knowing and willful concealment of a material 
fact, may subject the applicant to prosecution under the provisions of 
18 U.S.C. 1001, result in the denial or termination of a designation.
    (b) Each application for designation must be in English and include 
the following information:
    (1) Name and address of the applicant, including place of 
incorporation if a corporation. In addition, if the applicant is not a 
resident of the United States, the name and address of a permanent 
resident of the United States designated in accordance with Sec. 107.7 
to serve as agent for service of process.
    (2) If the applicant's principal place of business is in a country 
other than the United States, a copy of the designation from the 
Competent Authority of that country delegating to the applicant an 
approval or designated agency authority for the type of packaging for 
which a DOT designation is sought, and a statement that the Competent 
Authority also delegates similar authority to U.S. Citizens or 
organizations having designations under this subpart from the RSPA.
    (3) A listing, by DOT specification (or exemption) number, or U.N. 
designation, of the types of packagings for which approval authority is 
sought.

[[Page 45]]

    (4) A personnel qualifications plan listing the qualifications that 
the applicant will require of each person to be used in the performance 
of each packaging approval or certification function. As a minimum, 
these qualifications must include:
    (i) The ability to review and evaluate design drawings, design and 
stress calculations;
    (ii) A knowledge of the applicable regulations of subchapter C of 
this chapter and, when applicable, U.N. standards; and
    (iii) The ability to conduct or monitor and evaluate test procedures 
and results; and
    (iv) The ability to review and evaluate the qualifications of 
materials and fabrication procedures.
    (5) A statement that the applicant will perform its functions 
independent of the manufacturers and owners of the packagings concerned.
    (6) A statement that the applicant will allow the Associate 
Administrator for Hazardous Materials Safety or his representative to 
inspect its records and facilities in so far as they relate to the 
approval or certification of specification packagings and shall 
cooperate in the conduct of such inspections.
    (c) The applicant shall furnish any additional information relevant 
to the applicant's qualifications, if requested by the Associate 
Administrator for Hazardous Materials Safety.
[Amdt. 107-13, 50 FR 10062, Mar. 13, 1985; 50 FR 16089, Apr. 24, 1985, 
as amended by Amdt. 107-22, 55 FR 39978, Oct. 1, 1990; Amdt. 107-23, 56 
FR 66157, Dec. 20, 1991]



Sec. 107.403  Designation of approval agencies.

    (a) If the Associate Administrator for Hazardous Materials Safety 
determines that an application contains all the required information, 
the applicant is sent a letter of designation and assigned an 
identification code.
    (b) If the Associate Administrator for Hazardous Materials Safety 
determines that an application does not contain all the required 
information, the application is denied and the applicant is sent a 
written notice containing all the reasons for the denial.
    (c) Within 30 days of an initial denial of an application under 
paragraph (b) of this section, the applicant may file an amended 
application. If after considering the amended application, the Associate 
Administrator for Hazardous Materials Safety determines that it should 
be denied, he notifies the applicant, and the denial constitutes the 
final action of the Associate Administrator for Hazardous Materials 
Safety on the application. Within 60 days of receipt of the final denial 
the applicant may appeal the denial to the Administrator, RSPA, setting 
forth in writing where the Associate Administrator for Hazardous 
Materials Safety erred in this determination.
[Amdt. 107-13, 50 FR 10062, Mar. 13, 1985, as amended by Amdt. 107-23, 
56 FR 66157, Dec. 20, 1991; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994]



Sec. 107.404  Conditions of designation.

    (a) Each designation made under this subpart contains the following 
conditions:
    (1) The designated approval or certification agency may use only 
testing equipment that it has determined, through personal inspection, 
to be suitable for the purpose.
    (2) Each approval certificate and certification issued by the 
designated approval agency must contain the name and identification code 
of the approval agency.
    (3) Each approval certificate and certification must be in a format 
acceptable to the Associate Administrator for Hazardous Materials 
Safety.
    (b) The designated approval agency shall notify the Associate 
Administrator for Hazardous Materials Safety within 20 days after the 
date there is any change in the information submitted under 
Sec. 107.402.
    (c) The designated approval agency shall comply with all of the 
terms and conditions stated in its letter of designation under the 
subpart.
    (d) Nothing in this part relieves a manufacturer or owner of a 
packaging of responsibility for compliance with any of the applicable 
requirements of this title.
[Amdt. 107-13, 50 FR 10062, Mar. 13, 1985, as amended by Amdt. 107-23, 
56 FR 66157, Dec. 20, 1991]

[[Page 46]]



Sec. 107.405  Termination of designation.

    (a) Any designation issued under Sec. 107.403 of this subchapter may 
be suspended or terminated if the Associate Administrator for Hazardous 
Materials Safety determines that:
    (1) The application for designation contained a misrepresentation, 
or the applicant willfully concealed a material fact.
    (2) The approval agency failed to comply with a term or condition 
stated in the agency's letter of designation.
    (3) The Competent Authority of an approval agency of a country 
outside the United States has failed to initiate, maintain or recognize 
a qualified U.S. approval agency.
    (b) Before a designation is suspended or terminated, the Associate 
Administrator for Hazardous Materials Safety shall give to the approval 
agency:
    (1) Written notice of the facts or conduct believed to warrant 
suspension or termination of the designation.
    (2) Sixty days in which to show in writing why the designation 
should not be suspended or terminated.
[Amdt. 107-13, 50 FR 10062, Mar. 13, 1985, as amended by Amdt. 107-23, 
56 FR 66157, Dec. 20, 1991]



   Subpart F--Registration of Cargo Tank and Cargo Tank Motor Vehicle 
   Manufacturers and Repairers and Cargo Tank Motor Vehicle Assemblers



Sec. 107.501  Scope.

    (a) This subpart establishes a registration procedure for persons 
who are engaged in the manufacture, assembly, inspection and testing, 
certification, or repair of a cargo tank or a cargo tank motor vehicle 
manufactured in accordance with a DOT specification under subchapter C 
of this chapter or under terms of an exemption issued under this part.
    (b) Persons engaged in continuing qualification and maintenance of 
cargo tanks and cargo tank motor vehicles must be familiar with the 
requirements set forth in part 180, subpart E, of this chapter.
[Amdt. 107-20, 55 FR 37047, Sept. 7, 1990]



Sec. 107.502  General registration requirements.

    (a) Definitions: For purposes of this subpart--
    (1) Assembly means the assembly of one or more tanks or cargo tanks 
to a motor vehicle or to a motor vehicle suspension component and 
involves no welding on the cargo tank wall.
    (2) The terms Authorized Inspector, Cargo tank, Cargo tank motor 
vehicle, Design Certifying Engineer, Registered Inspector, and Person 
are defined in Sec. 171.8 of this chapter.
    (3) The terms cargo tank wall and manufacturer are defined in 
Sec. 178.320(a), and repair is defined in Sec. 180.403 of this chapter.
    (b) No person may engage in the manufacture, assembly, 
certification, inspection or repair of a cargo tank or cargo tank motor 
vehicle manufactured under the terms of a DOT specification under 
subchapter C of this chapter or an exemption issued under this part 
unless the person is registered with the Department in accordance with 
the provisions of this subpart. A person employed as an inspector or 
design certifying engineer is considered to be registered if the 
person's employer is registered.
    (c) A person who performs functions which are subject to the 
provisions of this subpart may perform only those functions which have 
been identified to the Department in accordance with the procedures of 
this subpart.
    (d) Registration statements must be in English, contain all of the 
information required by this subpart, and be submitted to: Approvals 
Branch, Associate Administrator for Hazardous Materials Safety, Attn: 
DHM-32, Research and Special Programs Administration, Department of 
Transportation, Washington, DC 20590-0001.
    (e) Upon determination that a registration statement contains all 
the information required by this subpart, the Department will send the 
registrant a letter confirming receipt of the registration application 
and assigning a registration number to that person. A separate 
registration number will be assigned for each cargo tank manufacturing, 
assembly, repair facility or

[[Page 47]]

other place of business identified by the registrant.
[Amdt. 107-20, 54 FR 25003, June 12, 1989; 55 FR 37047, Sept. 7, 1990, 
as amended by Amdt. 107-22, 55 FR 39978, Oct. 1, 1990; Amdt. 107-23, 56 
FR 66157, Dec. 20, 1991; Amdt. 107-28, 58 FR 46873, Sept. 3, 1993; Amdt. 
107-39, 61 FR 51337, Oct. 1, 1996]



Sec. 107.503  Registration statement.

    (a) Each registration statement must be in English and contain the 
following information:
    (1) Name;
    (2) Street address, mailing address and telephone number for each 
facility or place of business;
    (3) A statement signed by the person responsible for compliance with 
the applicable requirements of this chapter, certifying knowledge of 
those requirements and that each employee who is a Registered Inspector 
or Design Certifying Engineer meets the minimum qualification 
requirements set forth in Sec. 171.8 of this chapter for ``Registered 
Inspector'' or ``Design Certifying Engineer'', except as provided by 
Sec. 107.502(f) of this part. The following language may be used.
    I certify that all Registered Inspectors and Design Certifying 
Engineers used in performance of the prescribed functions meet the 
minimum qualification requirements set forth in 49 CFR 171.8, that I am 
the person responsible for ensuring compliance with the applicable 
requirements of this chapter, and that I have knowledge of the 
requirements applicable to the functions to be performed.

    (4) A description of the specific functions to be performed on cargo 
tanks or cargo tank motor vehicles, e.g.:
    (i) Manufacture,
    (ii) Assembly,
    (iii) Inspection and testing (specify type, e.g., external or 
internal visual inspection, lining inspection, hydrostatic pressure 
test, leakage test, thickness test),
    (iv) Certification,
    (v) Repair, or
    (vi) Equipment manufacture;
    (5) An identification of the types of DOT specification and 
exemption cargo tanks or cargo tank motor vehicles which the registrant 
intends to manufacture, assemble, repair, inspect, test or certify;
    (6) A statement indicating whether the registrant employs Registered 
Inspectors or Design Certifying Engineers to conduct certification, 
inspection or testing functions addressed by this subpart. If the 
registrant engages a person who is not an employee of the registrant to 
perform these functions, provide the name, address and registration 
number of that person; and
    (7) If the registrant is not a resident of the United States, the 
name and address of a permanent resident of the United States designated 
in accordance with Sec. 107.7 to serve as agent for service of process.
    (b) In addition to the information required under paragraph (a) of 
this section, each person who manufactures a cargo tank or cargo tank 
motor vehicle must submit a copy of the manufacturer's current ASME 
Certificate of Authorization for the use of the ASME ``U'' stamp.
    (c) In addition to the information required under paragraph (a) of 
this section, each person who repairs a cargo tank or cargo tank motor 
vehicle must submit a copy of the repair facility's current National 
Board Certificate of Authorization for the use of the ``R'' stamp or 
ASME Certificate of Authorization for the use of the ASME ``U'' stamp. 
Any person who repairs MC-series cargo tanks which are not certified to 
the ASME Code must submit a copy of the National Board or ASME 
Certificate of Authorization to RSPA before June 30, 1992.
[Amdt. 107-20, 54 FR 25003, June 12, 1989; 55 FR 37047, Sept. 7, 1990; 
57 FR 365, Jan. 6, 1992; Amdt. 107-32, 59 FR 49131, Sept. 26, 1994; 
Amdt. 107-39, 61 FR 51337, Oct. 1, 1996]



Sec. 107.504  Period of registration, updates, and record retention.

    (a) Registration will be for a maximum of six years from the date of 
the original registration.
    (b) Any correspondence with the Department must contain the 
registrant's name and registration number.
    (c) A registration must be renewed every six years or within thirty 
days of reissuance of an ASME or National Board Certification, whichever 
occurs first, by submitting an up-to-date registration statement 
containing the information prescribed by Sec. 107.503. Any person 
initially registered under the

[[Page 48]]

provisions of Sec. 107.502 and who is in good standing is eligible for 
renewal.
    (d) A registrant shall provide written notification to the 
Department within thirty days of any of the following occurrences:
    (1) Any change in the registration information submitted under 
Sec. 107.503;
    (2) Replacement of the person responsible for compliance with the 
requirements in Sec. 107.503(a)(3). If this occurs, the registrant shall 
resubmit the required certification;
    (3) Loss of ASME or National Board Certificate of Authorization;

or
    (4) A change in function; such as, from assembly to manufacture, an 
addition of a function, or a change to the types of inspections, tests 
or certifications of cargo tanks or cargo tank motor vehicles.
    (e) Each registrant shall maintain a current copy of the 
registration information submitted to the Department and a current copy 
of the registration number identification received from the Department 
at the location identified in Sec. 107.503(a)(2) during such time the 
person is registered with the Department and for two years thereafter.
    (f) The issuance of a registration number under this subpart is not 
an approval or endorsement by the Department of the qualifications of 
any person to perform the specified functions.
[Amdt. 107-20, 54 FR 25003, June 12, 1989; 55 FR 37048, Sept. 7, 1990, 
as amended by Amdt. 107-20, 56 FR 27875, June 17, 1991; Amdt. 107-37, 61 
FR 18931, Apr. 29, 1996]



  Subpart G--Registration of Persons Who Offer or Transport Hazardous 
                                Materials

    Source:  Amdt. No. 107-26, 57 FR 30630, July 9, 1992, unless 
otherwise noted.



Sec. 107.601  Applicability.

    The registration and fee requirements of this subpart apply to any 
person who offers for transportation, or transports, in foreign, 
interstate or intrastate commerce--
    (a) Any highway route-controlled quantity of a Class 7 (radioactive) 
material, as defined in Sec. 173.403 of this chapter;
    (b) More than 25 kg (55 pounds) of a Division 1.1, 1.2, or 1.3 
(explosive) material (see Sec. 173.50 of this chapter) in a motor 
vehicle, rail car or freight container;
    (c) More than one L (1.06 quarts) per package of a material 
extremely toxic by inhalation (i.e., ``material poisonous by 
inhalation,'' as defined in Sec. 171.8 of this chapter, that meets the 
criteria for ``hazard zone A,'' as specified in Secs. 173.116(a) or 
173.133(a) of this chapter);
    (d) A hazardous material in a bulk packaging (see Sec. 171.8 of this 
chapter) having a capacity equal to or greater than 13,248 L (3,500 
gallons) for liquids or gases or more than 13.24 cubic meters (468 cubic 
feet) for solids; or
    (e) A shipment in other than a bulk packaging of 2,268 kg (5,000 
pounds) gross weight or more of one class of hazardous materials for 
which placarding of a vehicle, rail car, or freight container is 
required for that class, under the provisions of subpart F of part 172 
of this chapter. For applicability of this subpart, the term 
``shipment'' means the offering or loading of a hazardous material at 
one loading facility using one transport vehicle, or the transport of 
that transport vehicle.
[Amdt. No. 107-26, 57 FR 30630, July 9, 1992, as amended at 57 FR 37902, 
Aug. 21, 1992; Amdt. 107-26, 58 FR 12545, Mar. 5, 1993; Amdt. 107-31, 59 
FR 32932, June 27, 1994; Amdt. 107-34, 60 FR 27233, May 23, 1995; Amdt. 
107-39, 61 FR 51337, Oct. 1, 1996]



Sec. 107.606  Exceptions.

    (a) The following are excepted from the requirements of this 
subpart:
    (1) An agency of the Federal government.
    (2) A State agency.
    (3) An agency of a political subdivision of a State.
    (4) An employee of any of those agencies in paragraphs (a)(1) 
through (a)(3) of this section with respect to the employee's official 
duties.
    (5) A hazmat employee (including, for purposes of this subpart, the 
owner-operator of a motor vehicle that transports in commerce hazardous 
materials, if that vehicle at the time of those activities, is leased to 
a registered motor carrier under a 30-day or longer lease as prescribed 
in 49 CFR

[[Page 49]]

part 1057 or an equivalent contractual agreement).
    (6) A person domiciled outside the United States, who offers solely 
from a location outside the United States, hazardous materials for 
transportation in commerce, provided that the country of which such a 
person is a domiciliary does not require persons domiciled in the United 
States, who solely offer hazardous materials for transportation to the 
foreign country from places in the United States, to file a registration 
statement or to pay a registration fee.
    (b) Upon making a determination that persons domiciled in the United 
States, who offer hazardous materials for transportation to a foreign 
country solely from places in the United States, must file registration 
statements or pay fees to that foreign country, the U.S. Competent 
Authority will provide notice of such determination directly to the 
Competent Authority of that foreign country and by publication in the 
Federal Register. Persons who offer hazardous materials for 
transportation to the United States from that foreign country must file 
a registration statement and pay the required fee no later than 60 days 
following publication of the determination in the Federal Register.
[Amdt 107-34, 60 FR 27233, May 23, 1995]



Sec. 107.608  General registration requirements.

    (a) Except as provided in Sec. 107.616(d), each person subject to 
this subpart must submit a complete and accurate registration statement 
on DOT Form F 5800.2 not later than June 30 for each registration year, 
or in time to comply with paragraph (b) of this section, whichever is 
later.
    (b) After September 15, 1992, no person required to file a 
registration statement may transport or cause to be transported or 
shipped hazardous materials, unless such person has on file, in 
accordance with Sec. 107.620, a current annual Certificate of 
Registration in accordance with the requirements of this subpart.
    (c) A registrant whose name or principal place of business has 
changed during the year of registration must notify RSPA of that change 
by submitting an amended registration statement not later than 30 days 
after the change.
    (d) Copies of DOT Form F 5800.2 and instructions for its completion 
may be obtained from the Hazardous Materials Registration Program, DHM-
60, U.S. Department of Transportation, Washington, DC 20590-0001 or by 
calling 617-494-2545 or 202-366-4109.
    (e) If the registrant is not a resident of the United States, the 
registrant must attach to the registration statement the name and 
address of a permanent resident of the United States, designated in 
accordance with Sec. 107.7, to serve as agent for service of process.
[Amdt. No. 107-26, 57 FR 30630, July 9, 1992, as amended by Amdt. 107-
31, 59 FR 32932, June 27, 1994]



Sec. 107.612  Amount of fee.

    Each person subject to the requirements of this subpart must pay an 
annual fee of $300 (which includes a $50 processing fee).



Sec. 107.616  Payment procedures.

    (a) Except as provided in paragraph (d) of this section, each person 
subject to the requirements of this subpart must mail the registration 
statement and payment in full to the U.S. Department of Transportation, 
Hazardous Materials Registration, P.O. Box 740188, Atlanta, Georgia 
30374-0188. A registrant required to file an amended registration 
statement under Sec. 107.608(c) must mail it to the same address.
    (b) Payment must be made by certified check, cashier's check, 
personal check, or money order in U.S. funds and drawn on a U.S. bank, 
payable to the U.S. Department of Transportation and identified as 
payment for the ``Hazmat Registration Fee'' or by a VISA or MasterCard 
credit card authorization completed and signed on the registration 
statement.
    (c) Payment must correspond to the annual fee indicated in 
Sec. 107.612.
    (d) A person may obtain a temporary registration number, valid for 
45 days from the date of issuance, through an expedited registration 
process as follows:
    (1) Contact RSPA by telephone (800-942-6990 or 617-494-2545) and 
provide name, principal place of business, and credit card payment 
information;

[[Page 50]]

    (2) Pay a $350 registration and processing fee (including a $50 
expedited handling fee); and
    (3) Submit a completed registration statement and proof of payment 
to RSPA before the expiration date of the temporary registration number.
[Amdt. 107-26, 57 FR 30630, July 9, 1992, as amended by Amdt. 107-26, 58 
FR 12545, Mar. 5, 1993]



Sec. 107.620  Recordkeeping requirements.

    (a) Each person subject to the requirements of this subpart, or its 
agent designated under Sec. 107.608(e), must maintain at its principal 
place of business for a period of three years from the date of issuance 
of each Certificate of Registration:
    (1) A copy of the registration statement filed with RSPA; and
    (2) The Certificate of Registration issued to the registrant by 
RSPA.
    (b) After January 1, 1993, each motor carrier subject to the 
requirements of this subpart must carry a copy of its current 
Certificate of Registration issued by RSPA or another document bearing 
the registration number identified as the ``U.S. DOT Hazmat Reg. No.'' 
on board each truck and truck tractor (not including trailers and semi-
trailers) used to transport hazardous materials subject to the 
requirements of this subpart. The Certificate of Registration or 
document bearing the registration number must be made available, upon 
request, to enforcement personnel.
    (c) In addition to the requirements of paragraph (a) of this 
section, after January 1, 1995, each person who transports by vessel a 
hazardous material subject to the requirements of this subpart must 
carry on board the vessel a copy of its current Certificate of 
Registration or another document bearing the current registration number 
identified as the ``U.S. DOT Hazmat Reg. No.''
    (d) Each person subject to this subpart must furnish its Certificate 
of Registration (or a copy thereof) and all other records and 
information pertaining to the information contained in the registration 
statement to an authorized representative or special agent of DOT upon 
request.
[Amdt. No. 107-26, 57 FR 30630, July 9, 1992, as amended at 57 FR 37902, 
August 21, 1992; Amdt. 107-26, 58 FR 12545, Mar. 5, 1993; Amdt. 107-31, 
59 FR 32932, June 27, 1994]



           Subpart H--Approvals, Registrations and Submissions

    Source:  Amdt. 107-38, 61 FR 21100, May 9, 1996, unless otherwise 
noted.



Sec. 107.701  Purpose and scope.

    (a) This subpart prescribes procedures for the issuance, 
modification and termination of approvals, and the submission of 
registrations and reports, as required by this chapter.
    (b) The procedures of this subpart are in addition to any 
requirements in subchapter C of this chapter applicable to a specific 
approval, registration or report. If compliance with both a specific 
requirement of subchapter C of this chapter and a procedure of this 
subpart is not possible, the specific requirement applies.
    (c) Registration under subpart F or G of this part is not subject to 
the procedures of this subpart.
[Amdt. 107-38, 61 FR 21100, May 9, 1996; Amdt. 107-38, 61 FR 27948, June 
3, 1996]



Sec. 107.705  Registrations, reports, and applications for approval.

    (a) A person filing a registration, report, or application for an 
approval, or a renewal or modification of an approval subject to the 
provisions of this subpart must--
    (1) File the registration, report, or application with the Associate 
Administrator for Hazardous Materials Safety, Research and Special 
Programs Administration, U.S. Department of Transportation, 400 7th 
Street, SW, Washington, DC 20590-0001, Attention: Approvals, DHM-32;
    (2) Identify the section of the chapter under which the 
registration, report, or application is made;
    (3) If a report is required by an approval, a registration or an 
exemption, identify the approval, registration or exemption number;
    (4) Provide the name, street, mailing address, and telephone number 
of the

[[Page 51]]

person on whose behalf the registration, report, or application is made 
and, if different, the person making the filing;
    (5) If the person on whose behalf the filing is made is not a 
resident of the United States, provide a designation of agent for 
service in accordance with Sec. 107.7;
    (6) Provide a description of the activity for which the registration 
or report is required; and
    (7) Provide additional information as requested by the Associate 
Administrator, if the Associate Administrator determines that a filing 
lacks pertinent information or otherwise does not comply with applicable 
requirements.
    (b) In addition to the provisions in paragraph (a) for an approval, 
an application for an approval, or an application for modification or 
renewal of an approval, the applicant must provide--
    (1) A description of the activity for which the approval is 
required;
    (2) The proposed duration of the approval;
    (3) The transport mode or modes affected, as applicable;
    (4) Any additional information specified in the section containing 
the approval; and
    (5) For an approval which provides exceptions from regulatory 
requirements or prohibitions--
    (i) Identification of any increased risk to safety or property that 
may result if the approval is granted, and specification of the measures 
that the applicant considers necessary or appropriate to address that 
risk; and
    (ii) Substantiation, with applicable analyses or evaluations, if 
appropriate, demonstrating that the proposed activity will achieve a 
level of safety that is at least equal to that required by the 
regulation.
    (c) For an approval with an expiration date, each application for 
renewal or modification must be filed in the same manner as an original 
application. If a complete and conforming renewal application is filed 
at least 60 days before the expiration date of an approval, the 
Associate Administrator, on written request from the applicant, will 
issue a written extension to permit operation under the terms of the 
expired approval until a final decision on the application for renewal 
has been made. Operation under an expired approval is prohibited absent 
a written extension. This paragraph does not limit the authority of the 
Associate Administrator to modify, suspend or terminate an approval 
under Sec. 107.713.
    (d) To request confidential treatment for information contained in 
the application, the applicant shall comply with Sec. 107.5(a).



Sec. 107.709  Processing of an application for approval, including an application for renewal or modification.

    (a) No public hearing or other formal proceeding is required under 
this subpart before the disposition of an application.
    (b) At any time during the processing of an application, the 
Associate Administrator may request additional information from the 
applicant. If the applicant does not respond to a written request for 
additional information within 30 days of the date the request was 
received, the application may be deemed incomplete and denied. However, 
if the applicant responds in writing within the 30-day period requesting 
an additional 30 days within which it will gather the requested 
information, the Associate Administrator may grant the 30-day extension.
    (c) The Associate Administrator may grant or deny an application, in 
whole or in part. At the Associate Administrator's discretion, an 
application may be granted subject to provisions that are appropriate to 
protect health, safety and property. The Associate Administrator may 
impose additional provisions not specified in the application, or delete 
conditions in the application which are unnecessary.
    (d) The Associate Administrator may grant an application on finding 
that--
    (1) The application complies with this subpart;
    (2) The application demonstrates that the proposed activity will 
achieve a level of safety that--
    (i) Is at least equal to that required by the regulation, or
    (ii) If the regulations do not establish a level of safety, is 
consistent with the

[[Page 52]]

public interest and adequately will protect against the risks to life 
and property inherent in the transportation of hazardous materials in 
commerce;
    (3) The application states all material facts, and contains no 
materially false or materially misleading statement;
    (4) The applicant meets the qualifications required by applicable 
regulations; and
    (5) The applicant is fit to conduct the activity authorized by the 
approval, or renewal or modification of approval. This assessment may be 
based on information in the application, prior compliance history of the 
applicant, and other information available to the Associate 
Administrator.
    (e) Unless otherwise specified in this chapter or by the Associate 
Administrator, an approval in which a term is not specified does not 
expire.
    (f) The Associate Administrator notifies the applicant in writing of 
the decision on the application. A denial contains a brief statement of 
reasons.



Sec. 107.711  Withdrawal.

    An application may be withdrawn at any time before a decision to 
grant or deny it is made. Withdrawal of an application does not 
authorize the removal of any related records from the RSPA dockets or 
files. Applications that are eligible for confidential treatment under 
Sec. 107.5 will remain confidential after the application is withdrawn. 
The duration of this confidential treatment for trade secrets and 
commercial or financial information is indefinite, unless the party 
requesting the confidential treatment of the materials notifies the 
Associate Administrator that the confidential treatment is no longer 
required.



Sec. 107.713  Approval modification, suspension or termination.

    (a) The Associate Administrator may modify an approval on finding 
that--
    (1) Modification is necessary to conform an existing approval to 
relevant statutes and regulations as they may be amended from time to 
time; or
    (2) Modification is required by changed circumstances to enable the 
approval to continue to meet the standards of Sec. 107.709(d).
    (b) The Associate Administrator may modify, suspend or terminate an 
approval, as appropriate, on finding that--
    (1) Because of a change in circumstances, the approval no longer is 
needed or no longer would be granted if applied for;
    (2) The application contained inaccurate or incomplete information, 
and the approval would not have been granted had the application been 
accurate and complete;
    (3) The application contained deliberately inaccurate or incomplete 
information; or
    (4) The holder knowingly has violated the terms of the approval or 
an applicable requirement of this chapter in a manner demonstrating lack 
of fitness to conduct the activity for which the approval is required.
    (c) Except as provided in paragraph (d) of this section, before an 
approval is modified, suspended or terminated, the Associate 
Administrator notifies the holder in writing of the proposed action and 
the reasons for it, and provides an opportunity to show cause why the 
proposed action should not be taken.
    (1) The holder may file a written response with the Associate 
Administrator within 30 days of receipt of notice of the proposed 
action.
    (2) After considering the holder's or party's written response, or 
after 30 days have passed without response since receipt of the notice, 
the Associate Administrator notifies the holder in writing of the final 
decision with a brief statement of reasons.
    (d) The Associate Administrator, if necessary to avoid a risk of 
significant harm to persons or property, may in the notification declare 
the proposed action immediately effective.



Sec. 107.715  Reconsideration.

    (a) An applicant or a holder may request that the Associate 
Administrator reconsider a decision under Sec. 107.709(f) or 
Sec. 107.713(c). The request must:
    (1) Be in writing and filed within 20 days of receipt of the 
decision;
    (2) State in detail any alleged errors of fact and law;

[[Page 53]]

    (3) Enclose any additional information needed to support the request 
to reconsider; and
    (4) State in detail the modification of the final decision sought.
    (b) The Associate Administrator considers newly submitted 
information on a showing that the information could not reasonably have 
been submitted during application processing.
    (c) The Associate Administrator grants or denies, in whole or in 
part, the relief requested and informs the requesting person in writing 
of the decision.



Sec. 107.717  Appeal.

    (a) A person who requested reconsideration under Sec. 107.715 may 
appeal to the Administrator the Associate Administrator's decision on 
the request. The appeal must:
    (1) Be in writing and filed within 30 days of receipt of the 
Associate Administrator's decision on reconsideration;
    (2) State in detail any alleged errors of fact and law;
    (3) Enclose any additional information needed to support the appeal; 
and
    (4) State in detail the modification of the final decision sought.
    (b) The Administrator, if necessary to avoid a risk of significant 
harm to persons or property, may declare the Associate Administrator's 
action effective pending a decision on appeal.
    (c) The Administrator grants or denies, in whole or in part, the 
relief requested and informs the appellant in writing of the decision on 
appeal. The Administrator's decision on appeal is the final 
administrative action.



PART 110--HAZARDOUS MATERIALS PUBLIC SECTOR TRAINING AND PLANNING GRANTS--Table of Contents




Sec.
110.1  Purpose.
110.5  Scope.
110.7  Control Number under the Paperwork Reduction Act.
110.10  Eligibility.
110.20  Definitions.
110.30  Grant application.
110.40  Activities eligible for funding.
110.50  Disbursement of Federal funds.
110.60  Cost sharing for planning and training.
110.70  Financial administration.
110.80  Procurement.
110.90  Grant monitoring, reports, and records retention.
110.100  Enforcement.
110.110  After-grant requirements.
110.120  Deviation from this part.
110.130  Disputes.

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.

    Source:  Amdt. 110-1, 57 FR 43067, Sept. 17, 1992, unless otherwise 
noted.



Sec. 110.1  Purpose.

    This part sets forth procedures for reimbursable grants for public 
sector planning and training in support of the emergency planning and 
training efforts of States, Indian tribes, and local communities to deal 
with hazardous materials emergencies, particularly those involving 
transportation. These grants will enhance the implementation of the 
Emergency Planning and Community Right-to-Know Act of 1986 (42 U.S.C. 
11001).



Sec. 110.5  Scope.

    (a) This part applies to States and Indian tribes and contains the 
program requirements for public sector training and planning grants to 
support hazardous materials emergency planning and training efforts.
    (b) The requirements contained in 49 CFR part 18, ``Uniform 
Administrative Requirements for Grants and Cooperative Agreements to 
State and Local Governments'', apply to grants issued under this part.
    (c) Copies of standard forms and OMB circulars referenced in this 
part are available from the HMTUSA Grants Manager, Research and Special 
Programs Administration, U.S. Department of Transportation, 400 Seventh 
Street, SW., Washington DC 20590-0001.



Sec. 110.7  Control Number under the Paperwork Reduction Act.

    The Office of Management and Budget control number assigned to 
collection of information in Secs. 110.30, 110.70, 110.80, and 110.90 is 
2137-0586.



Sec. 110.10  Eligibility.

    This Part applies to States and Indian tribes. States may apply for 
planning and training grants. Federally-recognized Indian tribes may 
apply for training grants.

[[Page 54]]



Sec. 110.20  Definitions.

    Unless defined in this part, all terms defined in 49 U.S.C. 5102 are 
used in their statutory meaning and all terms defined in 49 CFR part 18 
and OMB Circular A-102, with respect to administrative requirements for 
grants, are used as defined therein. Other terms used in this part are 
defined as follows:
    Allowable costs means those costs that are: eligible, reasonable, 
necessary, and allocable to the project permitted by the appropriate 
Federal cost principles, and approved in the grant.
    Budget period means the period of time specified in the grant 
agreement during which the project manager may expend or obligate 
project funds.
    Cost review means the review and evaluation of costs to determine 
reasonableness, allocability, and allowability.
    Indian country means Indian country as defined in 18 U.S.C. 1151. 
That section defines Indian country as all land within the limits of any 
reservation under the jurisdiction of the U.S. Government, 
notwithstanding the issuance of any patent, and, including rights-of-way 
running through the reservation; all dependent Indian communities within 
the borders of the United States whether within the original or 
subsequently acquired territory thereof, and whether within or without 
the limits of a State; and all Indian allotments, the Indian titles to 
which have not been extinguished, including rights-of-way running 
through the same.
    Indian tribe means a tribe ``Federally-recognized'' by the Secretary 
of the Interior under 25 CFR 272.2.
    Local Emergency Planning Committee (LEPC) means a committee 
appointed by the State Emergency Response Commission under section 
301(c) of the Emergency Planning and Community Right-to-Know Act of 1986 
(42 U.S.C. 11001(c)) that includes at a minimum, representatives from 
each of the following groups or organizations: elected State and local 
officials; law enforcement, firefighting, civil defense, first aid, 
health, local environmental, hospital, and transportation personnel; 
broadcast and print media; community groups; and owners and operators of 
facilities subject to the emergency planning requirements.
    National curriculum means the curriculum required to be developed 
under 49 U.S.C. 5115 and necessary to train public sector emergency 
response and preparedness teams, enabling them to comply with 
performance standards as stated in 49 U.S.C. 5115(c).
    Political subdivision means a county, municipality, city, town, 
township, local public authority (including any public and Indian 
housing agency under the United States Housing Act of 1937 (42 U.S.C. 
1401 et seq.), school district, special district, intrastate district, 
council of governments (whether or not incorporated as a nonprofit 
corporation under State law), any other regional or interstate 
government entity, or any agency or instrumentality of a local 
government.
    Project means the activities and tasks identified in the grant 
agreement.
    Project manager means the State or Indian tribal official designated 
in a grant as the recipient agency's principal program contact with the 
Federal Government.
    Project officer means the Federal official designated in a grant as 
the program contact with the project manager. The project officer is 
responsible for monitoring the project.
    Project period means the length of time specified in a grant for 
completion of all work associated with that project.
    State Emergency Response Commission (SERC) means the State Emergency 
Response Commission appointed by the Governor of each State and 
Territory under the Emergency Planning and Community Right-to-Know Act 
of 1986.
    Statement of Work means that portion of a grant that describes the 
purpose and scope of activities and tasks to be carried out as part of 
the proposed project.
[Amdt. 110-1, 57 FR 43067, Sept. 17, 1992, as amended by Amdt. 110-3, 59 
FR 49132, Sept. 26, 1994]



Sec. 110.30  Grant application.

    (a) General. An applicant for a planning or training grant shall use 
only the standard application forms approved by the Office of Management 
and Budget (OMB) (SF-424 and SF-424A) under the Paperwork Reduction Act 
of 1980 (44 U.S.C. 3502). Applicants

[[Page 55]]

are required to submit an original and two copies of the application 
package to: Grants Manager, Research and Special Programs 
Administration, U.S. Department of Transportation, 400 7th Street, SW., 
Washington, DC 20590-0001. Applications received on or before January 
1st and July 1st of each year will be considered in that cycle of the 
semi-annual review and award process. An initial round of the review and 
award process will consider applications received on or before November 
15, 1992. Requests and continuation applications must include an 
original and two copies of the affected pages; previously submitted 
pages with information that is still current do not have to be 
resubmitted. The application must include the following:
    (1) Application for Federal Assistance for non-construction programs 
(SF-424) and Budget sheets (SF-424A). A single application may be used 
for both planning and training if the budgets for each are entered 
separately on all budget sheets.
    (2) For States, a letter from the Governor designating the State 
agency that is authorized to apply for a grant and to provide the 
written certifications required to receive a grant.
    (3) For Indian tribes, a letter from the tribal government, 
governing body, or tribal council to the effect that the applicant is 
authorized to apply for a grant and to provide the written 
certifications required to receive a grant.
    (4) A written statement explaining whether the State or tribe 
assesses and collects fees on the transportation of hazardous materials 
and whether such assessments or fees are used solely to carry out 
purposes related to the transportation of hazardous materials.
    (5) A statement designating a project manager and providing the 
name, position, address and phone number of that individual who will be 
responsible for coordinating the funded activities with other agencies/
organizations.
    (6) A project narrative statement of the goals and objectives of the 
proposed project, project design, and long range plans. The proposed 
grant project and budget periods may be one or more years.
    (7) A statement of work in support of the proposed project that 
describes and sets priorities for the activities and tasks to be 
conducted, the costs associated with each activity, the number and types 
of deliverables and products to be completed, and a schedule for 
implementation.
    (8) A description of the major items of costs needed to implement 
the statement of work and a copy of any cost or price analysis if 
conducted.
    (9) Drug-Free Workplace Certification. The applicant must certify as 
specified in appendix C of 49 CFR part 29 that it will comply with the 
Drug-Free Workplace Act of 1988 (Pub. L. 100-690, title V, subtitle D; 
51 U.S.C. 701 et seq.).
    (10) Anti-Lobbying Certification. The applicant must certify as 
specified in appendix A of 49 CFR part 20 that no Federal funds will be 
expended to pay any person for influencing or attempting to influence an 
officer or employee of any agency, a Member of Congress, an officer or 
employee of Congress, or an employee of a Member of Congress (section 
319 of Pub. L. 101-121, 31 U.S.C. 1352).
    (11) Debarment and Suspension Certification. The applicant must 
certify as specified in subpart G of 49 CFR part 29 that it will not 
make an award or permit any award to any party which is debarred or 
suspended or is otherwise excluded from or ineligible for participation 
in Federal assistance programs.
    (b) Planning. In addition to the requirements specified in paragraph 
(a) of this section, eligible State applicants must include the 
following in their application package:
    (1) A written certification that the State is complying with 
sections 301 and 303 of the Emergency Planning and Community Right-to-
Know Act of 1986, including a brief explanation of how compliance has 
been achieved.
    (2) A written statement specifying the aggregate expenditure of 
funds of the State, exclusive of Federal funds, for each of its last two 
fiscal years for developing, improving, and implementing emergency plans 
under the Emergency Planning and Community Right-to-Know Act of 1986, 
including an explanation specifying the sources of these funds. A 
written certification that the State's aggregate expenditures, as 
defined by the State, of funds for this purpose, exclusive of Federal

[[Page 56]]

funds, will not fall below the average level of its expenditures for its 
last two fiscal years. The applicant may not claim any of these 
expenditures for cost-sharing.
    (3) A written statement agreeing to make at least 75 percent of the 
Federal funds awarded available to LEPCs and an explanation of how the 
applicant intends to make such funds available to them for developing, 
improving, or implementing emergency plans.
    (4) Designation of a project manager to serve as contact for 
coordinating planning funds under this program.
    (5) A project narrative statement of the goals and objectives of 
each proposed project, including the following:
    (i) A background statement describing the applicant's long-term 
goals and objectives with respect to:
    (A) The current abilities and authorities of the applicant's program 
for preparedness planning;
    (B) The need to sustain or increase program capability;
    (C) Current degree of participation in or intention to assess the 
need for a regional hazardous materials emergency response team; and
    (D) The impact that the grant will have on the program.
    (ii) A discussion of whether the applicant's program currently 
knows, or intends to assess, transportation flow patterns of hazardous 
materials within the State and between that State and another State.
    (iii) A schedule for implementing the proposed grant activities.
    (iv) A statement describing the ways in which planning will be 
monitored by the project manager.
    (v) A statement indicating that all members of the State Emergency 
Response Commission were provided the opportunity to review the grant 
application.
    (c) Training. In addition to the requirements specified in paragraph 
(a) of this section, eligible State and Indian tribe applicants must 
include the following in their application package:
    (1) For a State applicant, a written certification explaining how 
the State is complying with sections 301 and 303 of the Emergency 
Planning and Community Right-to-Know Act.
    (2) A written statement specifying the aggregate expenditure of 
funds of the State or Indian tribe, exclusive of Federal funds, for each 
of its last two fiscal years for training public sector employees to 
respond to accidents and incidents involving hazardous materials, 
including an explanation specifying the sources of these funds. A 
written certification that the applicant's aggregate expenditure, as 
defined by the State or tribe, of funds for this purpose, exclusive of 
Federal funds, will not fall below the average level of its expenditures 
for its last two fiscal years. The applicant may not claim any of these 
expenditures for cost-sharing purposes.
    (3) For a State applicant, a written statement agreeing to make at 
least 75 percent of the Federal funds awarded available for the purpose 
of training public sector employees employed or used by political 
subdivisions. A State applicant may elect to pass all or some portion of 
the grant on to political subdivisions for this purpose. The applicant 
must include a specific explanation of how it intends to meet this 
requirement.
    (4) Designation of a primary point of contact for coordinating 
training funded under this program. Identification of a single 
repository for copies of course materials delivered under the grant as 
specified in Sec. 110.90 of this part.
    (5) A project narrative statement of the long-range goals and 
objectives of each proposed project, including the following:
    (i) A background statement describing:
    (A) The current hazardous materials training program(s);
    (B) Training audience, including numbers and levels of training and 
accreditation program for each level or criterion required to advance to 
the next level;
    (C) Estimated total number of persons to be trained under the 
proposed project;
    (D) The ways in which training grants will support the integrated 
delivery of training to meet the needs of individualized geographic and 
resource needs and time considerations of local

[[Page 57]]

responders. When appropriate, a statement describing how the proposed 
project will accommodate the different training needs for rural versus 
urban environments; and
    (E) The impact that the grant and the National Curriculum will have 
on the program.
    (ii) A statement describing how the National Curriculum will be used 
or modified to train public sector employees at the local level to 
respond to accidents and incidents involving hazardous materials.
    (iii) A statement describing the ways in which effectiveness of 
training will be monitored by the project manager, including, but not 
limited to, examinations, critiques, and instructor evaluations.
    (iv) A schedule for implementing the proposed training grant 
activities.
    (v) A statement indicating that all members of the State or Tribal 
Emergency Response Commission were provided the opportunity to review 
the grant application.
[Amdt. 110-1, 57 FR 43067, Sept. 17, 1992, as amended by Amdt. 110-3, 59 
FR 49132, Sept. 26, 1994]



Sec. 110.40  Activities eligible for funding.

    (a) Planning. Eligible State applicants may receive funding for the 
following activities:
    (1) Development, improvement, and implementation of emergency plans 
required under the Emergency Planning and Community Right-to-Know Act of 
1986, as well as exercises which test the emergency plan. Enhancement of 
emergency plans to include hazard analysis as well as response 
procedures for emergencies involving transportation of hazardous 
materials, including radioactive materials.
    (2) An assessment to determine flow patterns of hazardous materials 
within a State, between a State and another State or Indian country, and 
development and maintenance of a system to keep such information 
current.
    (3) An assessment of the need for regional hazardous materials 
emergency response teams.
    (4) An assessment of local response capabilities.
    (5) Conduct of emergency response drills and exercises associated 
with emergency preparedness plans.
    (6) Provision of technical staff to support the planning effort.
    (7) Additional activities the Associate Administrator for Hazardous 
Materials Safety deems appropriate to implement the scope of work for 
the proposed project plan and approved in the grant.
    (b) Training. Eligible State and Indian tribe applicants may receive 
funding for the following activities:
    (1) An assessment to determine the number of public sector employees 
employed or used by a political subdivision who need the proposed 
training and to select courses consistent with the National Curriculum.
    (2) Delivery of comprehensive preparedness and response training to 
public sector employees. Design and delivery of preparedness and 
response training to meet specialized needs. Financial assistance for 
trainees and for the trainers, if appropriate, such as tuition, travel 
expenses to and from a training facility, and room and board while at 
the training facility.
    (3) Emergency response drills and exercises associated with 
training, a course of study, and tests and evaluation of emergency 
preparedness plans.
    (4) Expenses associated with training by a person (including a 
department, agency, or instrumentality of a State or political 
subdivision thereof or an Indian tribe) and activities necessary to 
monitor such training including, but not limited to examinations, 
critiques and instructor evaluations.
    (5) Provision of staff to manage the training effort designed to 
result in increased benefits, proficiency, and rapid deployment of local 
and regional responders.
    (6) Additional activities the Associate Administrator for Hazardous 
Materials Safety deems appropriate to implement the scope of work for 
the proposed project and approved in the grant.



Sec. 110.50  Disbursement of Federal funds.

    (a) Preaward expenditures may not be reimbursed.

[[Page 58]]

    (b) Reimbursement may not be made for a project plan unless approved 
in the grant award.
    (c) If a recipient agency seeks additional funds, the amendment 
request will be evaluated on the basis of needs, performance and 
availability of funds. An existing grant is not a commitment of future 
Federal funding.



Sec. 110.60  Cost sharing for planning and training.

    (a) The recipient agency must provide 20 percent of the direct and 
indirect costs of all activities covered under the grant award program 
with non-Federal funds. Recipients may either use cash (hard-match), in-
kind (soft-match) contributions, or a combination of in-kind plus hard-
match to meet this requirement. In-kind (soft-match) contributions are 
in addition to the maintenance of effort required of recipients of grant 
awards. The types of contributions allowed are as follows:
    (1) Any funds from a State, local, or other non-Federal source used 
for an eligible activity as defined in Sec. 110.40 in this part.
    (2) The dollar equivalent value of an eligible activity as defined 
in Sec. 110.40 of this part provided by a State, local, or other non-
Federal source.
    (3) The value of participants' salary while attending a planning or 
training activity contained in the approved grant application provided 
by a State, local, or other non-Federal source.
    (4) Additional types of in-kind contributions the Associate 
Administrator for Hazardous Materials Safety deems appropriate.
    (b) Funds used for matching purposes under any other Federal grant 
or cooperative agreement may not be used for matching purposes. The 
funds expended by a recipient agency to qualify for the grant may not be 
used for cost-sharing purposes.
    (c) Acceptable contributions for matching and cost sharing purposes 
must conform to 49 CFR part 18.
[Amdt. 110-1, 57 FR 43067, Sept. 17, 1992, as amended by Amdt. 110-3, 59 
FR 49132, Sept. 26, 1994]



Sec. 110.70  Financial administration.

    (a) A State must expend and account for grant funds in accordance 
with State laws and procedures for expending and accounting for its own 
funds. Fiscal control and accounting procedures of the State, as well as 
its subgrantees and cost-type contractors, must be sufficient to:
    (1) Permit the preparation of reports required by 49 CFR part 18 and 
this part, including the tracing of funds provided for planning to a 
level of expenditure adequate to establish that at least 75 percent of 
the funds provided were made available to LEPCs for developing, 
improving, and implementing emergency plans; and the tracing of funds 
provided for training to a level of expenditure adequate to establish 
that at least 75 percent of the funds provided were made available for 
the purposes of training public sector employees employed or used by 
political subdivisions.
    (2) Permit the tracing of funds to a level of expenditure adequate 
to establish that such funds have not been used in violation of the 
restrictions and prohibitions of applicable statutes.
    (b) The financial management systems of Indian tribes and any 
subgrantees must meet the standards of 49 CFR 18.20, including the 
ability to trace funds provided for training to a level of expenditure 
adequate to establish that at least 75 percent of the funds provided 
were made available for the purposes of training public sector employees 
employed or used by political subdivisions.
    (c) Advances shall be made to States and Indian tribes consistent 
with 49 CFR part 18 and 31 CFR part 205. The Associate Administrator for 
Hazardous Materials Safety shall base these advances on demonstrated 
need, which will be determined on a case-by-case basis, considering such 
factors as State/Tribal budget constraints and reductions in amounts 
budgeted for hazardous materials activities. To obtain an advance, a 
State or Indian tribe must comply with the following requirements:
    (1) A letter from the Governor or Tribal leader or their designee is 
required specifying the extenuating circumstances requiring the funding 
advance for the grant;

[[Page 59]]

    (2) The maximum advance request may not be more than $25,000 for 
each State or Indian tribe;
    (3) Recipients of advance funding must obligate those funds within 3 
months of receipt;
    (4) Advances including interest will be deducted from the initial 
reimbursement to the State or Indian tribe; and
    (5) The State or Indian tribe will have its allocation of current 
grant funds reduced and will not be permitted to apply for future grant 
funds until the advance is covered by a request for reimbursement. For 
example, if $25,000 is advanced for personnel costs, this advance would 
be deducted from the initial reimbursement in the year the advance was 
made.
    (d) To be allowable, costs must be eligible, reasonable, necessary, 
and allocable to the approved project in accordance with OMB Circular A-
87 and included in the grant award. Costs incurred prior to the award of 
any grant are not allowable. Recipient agencies are responsible for 
obtaining audits in accordance with the Single Audit Act of 1984 (31 
U.S.C. 7501), 49 CFR part 90, and OMB Circular A-128. Audits shall be 
made by an independent auditor in accordance with generally accepted 
government auditing standards covering financial and compliance audits. 
The Associate Administrator for Hazardous Materials Safety may audit a 
recipient agency at any time.



Sec. 110.80  Procurement.

    Project managers shall use procurement procedures and practices 
which reflect applicable State laws and regulations and Federal 
requirements as specified in 49 CFR 18.36.



Sec. 110.90  Grant monitoring, reports, and records retention.

    (a) Grant monitoring. Project managers are responsible for managing 
the day-to-day operations of grant, subgrant and contract-supported 
activities. Project managers must monitor performance of supported 
activities to assure compliance with applicable Federal requirements and 
achievement of performance goals. Monitoring must cover each program, 
function, activity, or task covered by the grant. Monitoring and 
reporting requirements for planning and training are contained in this 
part; general grant reporting requirements are specified in 49 CFR 
18.40.
    (b) Reports. (1) The project manager shall submit a performance 
report at the completion of an activity for which reimbursement is being 
requested or with a request to amend the grant. The final performance 
report is due 90 days after the expiration or termination of the grant.
    (2) Project managers shall submit an original and two copies of all 
performance reports. Performance reports for planning and training must 
include comparison of actual accomplishments to the stated goals and 
objectives established for the performance period, and the reasons for 
not achieving those goals and objectives, if applicable.
    (3) Project managers shall report developments or events that occur 
between the required performance reporting dates which have significant 
impact upon the planning and training activity such as:
    (i) Problems, delays, or adverse conditions which will impair the 
ability to meet the objective of the grant; and
    (ii) Favorable developments which enable meeting time schedules and 
objectives sooner or at less cost than anticipated or producing more 
beneficial results than originally planned.
    (4) Financial reporting, except as provided in Sec. 110.70 and 49 
CFR 18.41, shall be supplied quarterly using Standard Form 270, Request 
for Advance or Reimbursement, to report the status of funds. The project 
manager shall report separately on planning and training.
    (c) Records retention. In accordance with 49 CFR 18.42, all 
financial and programmatic records, supporting documents, statistical 
records, training materials, and other documents generated under a grant 
shall be maintained by the project manager for three years from the date 
the project manager submits the final financial status report (SF 269) 
or Request for Advance or Reimbursement (SF 270). The project manager 
shall designate a repository and single-point of contact for planning 
and for training, or both, for these purposes. If any litigation, claim, 
negotiation, audit or other action involving

[[Page 60]]

the records has been started before the expiration of the 3-year period, 
the records must be retained until completion of the action and 
resolution of all issues which arise from it, or until the end of the 
regular 3-year period, whichever is later.



Sec. 110.100  Enforcement.

    If a recipient agency fails to comply with any term of an award 
(whether stated in a Federal statute or regulation, an assurance, a 
State plan or application, a notice of award, or elsewhere) a 
noncompliance action may be taken as specified in 40 CFR 18.43. The 
recipient agency may appeal any such actions as specified in 49 CFR part 
18. Costs incurred by the recipient agency during a suspension or after 
termination of an award are not allowable unless the Associate 
Administrator for Hazardous Materials Safety authorizes it in writing. 
Grant awards may be terminated in whole or in part with the consent of 
the recipient at any agreed upon effective date, or by the recipient 
upon written notification.



Sec. 110.110  After-grant requirements.

    The Associate Administrator for Hazardous Materials Safety will 
close out the award upon determination that all applicable 
administrative actions and all required work of the grant are complete 
in accordance with subpart D of 49 CFR part 18. The project manager must 
submit all financial, performance, and other reports required as a 
condition of the grant, within 90 days after the expiration or 
termination of the grant. This time frame may be extended by the 
Associate Administrator for Hazardous Materials Safety for cause.



Sec. 110.120  Deviation from this part.

    Recipient agencies may request a deviation from the non-statutory 
provisions of this part. The Associate Administrator for Hazardous 
Materials Safety will respond to such requests in writing. If 
appropriate, the decision will be included in the grant agreement. 
Request for deviations from part 110 must be submitted to: Grants 
Manager, Research and Special Programs Administration, U.S. Department 
of Transportation, 400 7th Street, SW., Washington, DC 20590-0001.
[Amdt. 110-1, 57 FR 43067, Sept. 17, 1992, as amended by Amdt. 110-3, 59 
FR 49132, Sept. 26, 1994]



Sec. 110.130  Disputes.

    Disputes should be resolved at the lowest level possible, beginning 
with the project manager and the project officer. If an agreement cannot 
be reached, the Administrator, RSPA, will serve as the dispute 
resolution official, whose decision will be final.

[[Page 61]]



                    SUBCHAPTER B--OIL TRANSPORTATION





PART 130--OIL SPILL PREVENTION AND RESPONSE PLANS--Table of Contents




Sec.
130.1  Purpose.
130.2  Scope.
130.3  General requirements.
130.5  Definitions.
130.11  Communication requirements.
130.21  Packaging requirements.
130.31  Response plans.
130.33  Response plan implementation.

    Authority:  33 U.S.C. 1321.

    Source:  Amdt. 130-2, 61 FR 30541, June 17, 1996, unless otherwise 
noted.



Sec. 130.1  Purpose.

    This part prescribes prevention, containment and response planning 
requirements of the Department of Transportation applicable to 
transportation of oil by motor vehicles and rolling stock.



Sec. 130.2  Scope.

    (a) The requirements of this part apply to--
    (1) Any liquid petroleum oil in a packaging having a capacity of 
3,500 gallons or more; and
    (2) Any liquid petroleum or non-petroleum oil in a quantity greater 
than 42,000 gallons per packaging.
    (b) The requirements of this part have no effect on--
    (1) The applicability of the Hazardous Materials Regulations set 
forth in Subchapter C of this chapter; and
    (2) The discharge notification requirements of the United States 
Coast Guard (33 CFR part 153) and EPA (40 CFR part 110).
    (c) The requirements of this part do not apply to--
    (1) Any mixture or solution in which oil is in a concentration by 
weight of less than 10 percent.
    (2) Transportation of oil by aircraft or vessel.
    (3) Any petroleum oil carried in a fuel tank for the purpose of 
supplying fuel for propulsion of the transport vehicle to which it is 
attached.
    (4) Oil transport exclusively within the confines of a non-
transportation-related or terminal facility in a vehicle not intended 
for use in interstate or intrastate commerce (see 40 CFR part 112, 
appendix A).
    (d) The requirements in Sec. 130.31(b) of this part do not apply to 
mobile marine transportation-related facilities (see 33 CFR part 154).



Sec. 130.3  General requirements.

    No person may offer or accept for transportation or transport oil 
subject to this part unless that person--
    (a) Complies with this part; and
    (b) Has been instructed on the applicable requirements of this part.



Sec. 130.5  Definitions.

    In this subchapter: Animal fat means a non-petroleum oil, fat, or 
grease derived from animals, not specifically identified elsewhere in 
this part.
    Contract or other means is:
    (1) A written contract with a response contractor identifying and 
ensuring the availability of the necessary personnel or equipment within 
the shortest practicable time;
    (2) A written certification by the owner or operator that the 
necessary personnel or equipment can and will be made available by the 
owner or operator within the shortest practicable time; or
    (3) Documentation of membership in an oil spill response 
organization that ensures the owner's or operator's access to the 
necessary personnel or equipment within the shortest practicable time.
    EPA means the U.S. Environmental Protection Agency.
    Liquid means a material that has a vertical flow of over two inches 
(50 mm) within a three-minute period, or a material having one gram or 
more liquid separation, when determined in accordance with the 
procedures specified in ASTM D 4359-84, ``Standard Test Method for 
Determining Whether a Material is a Liquid or a Solid,'' 1990 edition, 
which is incorporated by reference.

    Note:  This incorporation by reference has been approved by the 
Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 
1 CFR part 51. A copy may be obtained

[[Page 62]]

from the American Society for Testing and Materials, 1916 Race Street, 
Philadelphia, PA 19103. Copies may be inspected at the Dockets Unit, 
Room 8421, DOT headquarters building, 400 7th St. SW, Washington, DC 
20590 or at the Office of the Federal Register, 800 North Capitol St. 
NW, Room 700, Washington, DC.

    Maximum extent practicable means the limits of available technology 
and the practical and technical limits on an owner or operator of an 
onshore facility in planning the response resources required to provide 
the on-water recovery capability and the shoreline protection and 
cleanup capability to conduct response activities for a worst-case 
discharge of oil in adverse weather.
    Non-petroleum oil means any animal fat, vegetable oil or other non-
petroleum oil.
    Oil means oil of any kind or in any form, including, but not limited 
to, petroleum, fuel oil, sludge, oil refuse, and oil mixed with wastes 
other than dredged spoil.

    Note:  This definition does not include hazardous substances (see 40 
CFR part 116).

    Other non-petroleum oil means a non-petroleum oil of any kind that 
is not an animal fat or vegetable oil.
    Packaging means a receptacle and any other components or materials 
necessary for the receptacle to perform its containment function in 
conformance with the packaging requirements of this part. A 
compartmented tank is a single packaging.
    Person means an individual, firm, corporation, partnership, 
association, State, municipality, commission, or political subdivision 
of a State, or any interstate body, as well as a department, agency, or 
instrumentality of the executive, legislative or judicial branch of the 
Federal Government.
    Petroleum oil means any oil extracted or derived from geological 
hydrocarbon deposits, including fractions thereof.
    Qualified individual means an individual familiar with the response 
plan, trained in his or her responsibilities in implementing the plan, 
and authorized, on behalf of the owner or operator, to initiate all 
response activities identified in the plan, to enter into response-
related contracts and obligate funds for such contracts, and to act as a 
liaison with the on-scene coordinator and other responsible officials. 
The qualified individual must be available at all times the owner or 
operator is engaged in transportation subject to part 130 (alone or in 
conjunction with an equally qualified alternate), must be fluent in 
English, and must have in his or her possession documentation of the 
required authority.
    Transports or Transportation means any movement of oil by highway or 
rail, and any loading, unloading, or storage incidental thereto.
    Vegetable oil means a non-petroleum oil or fat derived from plant 
seeds, nuts, kernels or fruits, not specifically identified elsewhere in 
this part.
    Worst-case discharge means ``the largest foreseeable discharge in 
adverse weather conditions,'' as defined at 33 U.S.C. 1321(a)(24). The 
largest foreseeable discharge from a motor vehicle or rail car is the 
capacity of the cargo container. The term ``maximum potential 
discharge,'' used in Sec. 130.31(a), is synonymous with ``worst-case 
discharge.''



Sec. 130.11  Communication requirements.

    (a) No person may offer oil subject to this part for transportation 
unless that person provides the person accepting the oil for 
transportation a document indicating the shipment contains oil.
    (b) No person may transport oil subject to this part unless a 
readily available document indicating that the shipment contains oil is 
in the possession of the transport vehicle operator during 
transportation.
    (c) A material subject to the requirements of this part need not be 
specifically identified as oil when the shipment document accurately 
describes the material as: aviation fuel, diesel fuel, fuel oil, 
gasoline, jet fuel, kerosene, motor fuel, or petroleum.



Sec. 130.21  Packaging requirements.

    Each packaging used for the transportation of oil subject to this 
part must be designed, constructed, maintained, closed, and loaded so 
that, under conditions normally incident to transportation, there will 
be no release of oil to the environment.

[[Page 63]]



Sec. 130.31  Response plans.

    (a) After September 30, 1993, no person may transport oil subject to 
this part unless that person has a current basic written plan that:
    (1) Sets forth the manner of response to discharges that may occur 
during transportation;
    (2) Takes into account the maximum potential discharge of the 
contents from the packaging;
    (3) Identifies private personnel and equipment available to respond 
to a discharge;
    (4) Identifies the appropriate persons and agencies (including their 
telephone numbers) to be contacted in regard to such a discharge and its 
handling, including the National Response Center; and
    (5) For each motor carrier, is retained on file at that person's 
principal place of business and at each location where dispatching of 
motor vehicles occurs; and for each railroad, is retained on file at 
that person's principal place of business and at the dispatcher's 
office.
    (b) After February 18, 1993, no person may transport an oil subject 
to this part in a quantity greater than 1,000 barrels (42,000 gallons) 
unless that person has a current comprehensive written plan that:
    (1) Conforms with all requirements specified in paragraph (a) of 
this section;
    (2) Is consistent with the requirements of the National Contingency 
Plan (40 CFR part 300) and Area Contingency Plans;
    (3) Identifies the qualified individual having full authority to 
implement removal actions, and requires immediate communications between 
that individual and the appropriate Federal official and the persons 
providing spill response personnel and equipment;
    (4) Identifies, and ensures by contract or other means the 
availability of, private personnel (including address and phone number), 
and the equipment necessary to remove, to the maximum extent 
practicable, a worst case discharge (including a discharge resulting 
from fire or explosion) and to mitigate or prevent a substantial threat 
of such a discharge;
    (5) Describes the training, equipment testing, periodic unannounced 
drills, and response actions of facility personnel, to be carried out 
under the plan to ensure the safety of the facility and to mitigate or 
prevent the discharge, or the substantial threat of such a discharge; 
and
    (6) Is submitted, and resubmitted in the event of any significant 
change, to the Federal Railroad Administrator (for tank cars), or to the 
Federal Highway Administrator (for cargo tanks) at 400 Seventh Street 
SW, Washington, DC 20590-0001.

(Approved by the Office of Management and Budget under control number 
2137-0591)



Sec. 130.33  Response plan implementation.

    If, during transportation of oil subject to this part, a discharge 
occurs-- into or on the navigable waters of the United States; on the 
adjoining shorelines to the navigable waters; or that may affect natural 
resources belonging to, appertaining to, or under the exclusive 
management authority of, the United States--the person transporting the 
oil shall implement the plan required by Sec. 130.31, in a manner 
consistent with the National Contingency Plan, 40 CFR part 300, or as 
otherwise directed by the Federal on-scene coordinator.

[[Page 64]]



              SUBCHAPTER C--HAZARDOUS MATERIALS REGULATIONS





PART 171--GENERAL INFORMATION, REGULATIONS, AND DEFINITIONS--Table of Contents




Sec.
171.1  Purpose and scope.
171.2  General requirements.
171.3  Hazardous waste.
171.4  Marine pollutants.
171.6  Control numbers under the Paperwork Reduction Act.
171.5  Temporary regulation; liquefied compressed gases in cargo tank 
          motor vehicles.
171.7  Reference material.
171.8  Definitions and abbreviations.
171.9  Rules of construction.
171.10  Units of measure.
171.11  Use of ICAO Technical Instructions.
171.12  Import and export shipments.
171.12a  Canadian shipments and packagings.
171.14  Transitional provisions for implementing requirements based on 
          the UN Recommendations.
171.14  Transitional provisions for implementing certain requirements. 
          (effective 10-01-98)
171.15  Immediate notice of certain hazardous materials incidents.
171.16  Detailed hazardous materials incident reports.
171.17  [Reserved]
171.18  Continuation of effectiveness of existing Bureau of Explosives 
          registrations.
171.19  Approvals or authorizations issued by the Bureau of Explosives.
171.20  Submission of Examination Reports.
171.21  Assistance in investigations and special studies.

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.



Sec. 171.1  Purpose and scope.

    (a) This subchapter prescribes requirements of the Department of 
Transportation governing--
    (1) The offering of hazardous materials for transportation and 
transportation of hazardous materials in interstate, intrastate, and 
foreign commerce by rail car, aircraft, motor vehicle, and vessel 
(except as delegated at Sec. 1.46(t) of this title), (except that until 
October 1, 1998, this subchapter applies to intrastate carriers by motor 
vehicle only in so far as this subchapter relates to hazardous waste, 
hazardous substances, flammable cryogenic liquids in portable tanks and 
cargo tanks, and marine pollutants).
    (2) The representation that a hazardous material is present in a 
package, container, rail car, aircraft, motor vehicle, or vessel.
    (3) The manufacture, fabrication, marking, maintenance, 
reconditioning, repairing, or testing of a packaging or container which 
is represented, marked, certified, or sold for use in transportation of 
hazardous materials.
    (4) The use of terms and symbols prescribed in this subchapter for 
the marking, labeling, placarding and description of hazardous materials 
and packagings used in their transport.
    (b) Any person who, under contract with any department, agency, or 
instrumentality of the executive, legislative, or judicial branch of the 
Federal Government, transports, or causes to be transported or shipped, 
a hazardous material or manufactures, fabricates, marks, maintains, 
reconditions, repairs, or tests a package or container which is 
represented, marked, certified, or sold by such person as qualified for 
use in the transportation of a hazardous material shall be subject to 
and comply with all provisions of the Federal hazardous materials 
transportation law, all orders and regulations issued thereunder, and 
all other substantive and procedural requirements of Federal, State, and 
local governments and Indian tribes (except any such requirements that 
have been preempted by the Federal hazardous materials transportation 
law or any other Federal law), in the same manner and to the same extent 
as any person engaged in such activities that are in or affect commerce 
is subject to such provisions, orders, regulations, and requirements.
    (c) Any person who knowingly violates a requirement of the Federal 
hazardous material transportation law, an order issued thereunder, 
subchapter A, an exemption issued under subchapter A, of this 
subchapter, is liable for a civil penalty of not more than $25,000 
($27,500 for a violation that occurs after January 21, 1997) and not 
less than $250 for each violation. When the violation is a continuing 
one and involves the transporting of hazardous materials or

[[Page 65]]

the causing of them to be transported or shipped, each day of the 
violation constitutes a separate offense. Any person who knowingly 
violates Sec. 171.2(g) of this subchapter or willfully violates a 
provision of the Federal hazardous material transportation law or an 
order or regulation issued thereunder shall be fined under Title 18, 
United States Code, or imprisoned for not more than 5 years, or both.
[Amdt. 171-150, 62 FR 1215, Jan. 8, 1997, as amended by Amdt. 171-152, 
62 FR 2977, Jan. 21, 1997; Amdt. 171-154, 62 FR 49566, Sept. 22, 1997]



Sec. 171.2  General requirements.

    (a) No person may offer or accept a hazardous material for 
transportation in commerce unless that person is registered in 
conformance with subpart G of part 107 of this chapter, if applicable, 
and the hazardous material is properly classed, described, packaged, 
marked, labeled, and in condition for shipment as required or authorized 
by applicable requirements of this subchapter, or an exemption, approval 
or registration issued under this subchapter or subchapter A of this 
chapter.
    (b) No person may transport a hazardous material in commerce unless 
that person is registered in conformance with subpart G of part 107 of 
this chapter, if applicable, and the hazardous material is handled and 
transported in accordance with applicable requirements of this 
subchapter, or an exemption, approval or registration issued under this 
subchapter or subchapter A of this chapter.
    (c) No person may represent, mark, certify, sell, or offer a 
packaging or container as meeting the requirements of this subchapter or 
an exemption, approval or registration issued under this subchapter or 
subchapter A of this chapter, governing its use in the transportation in 
commerce of a hazardous material, whether or not it is used or intended 
to be used for the transportation of a hazardous material, unless the 
packaging or container is manufactured, fabricated, marked, maintained, 
reconditioned, repaired and retested, as appropriate, in accordance with 
applicable requirements of this subchapter, or an exemption, approval or 
registration issued under this subchapter or subchapter A of this 
chapter.
    (d) The representations, markings, and certifications subject to the 
prohibitions of paragraph (c) of this section include, but are not 
limited to--
    (1) Specification identifications that include the letters ``ICC,'' 
``DOT,'' ``MC,'' or ``UN'';
    (2) Exemption, approval, and registration numbers that include the 
letters ``DOT,'' ``EX,'' ``M,'' or ``R''; and
    (3) Test dates associated with specification, registration, 
approval, retest or exemption markings indicating compliance with a test 
or retest requirement of this subchapter, or an exemption, an approval 
or a registration issued under this subchapter or subchapter A of this 
chapter.
    (e) When a person performs a function covered by or having an effect 
on a specification prescribed in part 178, 179 or 180 of this 
subchapter, an approval issued under this subchapter, or an exemption 
issued under subpart B of this chapter, that person must perform the 
function in accordance with that specification, approval, or exemption, 
as appropriate.
    (f) No person shall, by marking or otherwise, represent that--
    (1) A container or package for the transportation of hazardous 
materials is safe, certified, or in compliance with the requirements of 
this title unless it meets the requirements of all applicable 
regulations issued under the Federal hazardous material transportation 
law; or
    (2) A hazardous material is present in a package, container, motor 
vehicle, rail car, aircraft, or vessel, if the hazardous material is not 
present.
    (g) No person shall unlawfully alter, remove, deface, destroy, or 
otherwise tamper with--
    (1) Any marking, label, placard, or description on a document 
required by the Federal hazardous material transportation law, or the 
regulations issued thereunder; or
    (2) Any package, container, motor vehicle, rail car, aircraft, or 
vessel used for the transportation of hazardous materials.
    (h) No person shall--
    (1) Falsify or alter an exemption, approval, registration or other 
grant of

[[Page 66]]

authority issued under this subchapter or subchapter A of this chapter; 
or
    (2) Offer a hazardous material for transportation or transport a 
hazardous material in commerce, or represent, mark, certify, or sell a 
packaging or container, under a false or altered exemption, approval, 
registration or other grant of authority issued under this subchapter or 
subchapter A of this chapter.
[Amdt. 171-70, 48 FR 2655, Jan. 20, 1983, as amended by Amdt. No. 171-
100, 54 FR 25004, June 12, 1989; Amdt. 171-12, 56 FR 8624, Feb. 28, 
1991; Amdt. No. 171-115, 57 FR 30631, July 9, 1992; 57 FR 37902, Aug. 
21, 1992; Amdt. No. 171-120, 58 FR 33305, June 16, 1993; Amdt. 171-2, 59 
FR 49132, Sept. 26, 1994; Amdt. 171-141, 61 FR 21101, May 9, 1996]



Sec. 171.3  Hazardous waste.

    (a) No person may offer for transportation or transport a hazardous 
waste (as defined in Sec. 171.8 of this subchapter) in interstate or 
intrastate commerce except in accordance with the requirements of this 
subchapter.
    (b) No person may accept for transportation, transport, or deliver a 
hazardous waste for which a manifest is required unless that person:
    (1) Has marked each motor vehicle used to transport hazardous waste 
in accordance with Sec. 390.21 or Sec. 1058.2 of this title even though 
placards may not be required;
    (2) Complies with the requirements for manifests set forth in 
Sec. 172.205 of this subchapter; and
    (3) Delivers, as designated on the manifest by the generator, the 
entire quantity of the waste received from the generator or a 
transporter to:
    (i) The designated facility or, if not possible, to the designated 
alternate facility;
    (ii) The designated subsequent carrier; or
    (iii) A designated place outside the United States.

    Note: Federal law specifies penalties up to $250,000 fine for an 
individual and $500,000 for a company and 5 years imprisonment for the 
willful discharge of hazardous waste at other than designated 
facilities. 49 U.S.C. 5124.

    (c) If a discharge of hazardous waste or other hazardous material 
occurs during transportation, and an official of a State or local 
government or a Federal agency, acting within the scope of his official 
responsibilities, determines that immediate removal of the waste is 
necessary to prevent further consequence, that official may authorize 
the removal of the waste without the preparation of a manifest. [Note: 
In such cases, EPA does not require carriers to have EPA identification 
numbers.]

    Note 1: EPA requires shippers (generators) and carriers 
(transporters) of hazardous wastes to have identification numbers which 
must be displayed on hazardous waste manifests. See 40 CFR parts 262 and 
263. (Identification number application forms may be obtained from EPA 
regional offices.)
    Note 2: In 40 CFR part 263, the EPA sets forth requirements for the 
cleanup of releases of hazardous wastes.

[Amdt. 171-53, 45 FR 34586, May 22, 1980, as amended by Amdt. 171-53, 45 
FR 74648, Nov. 10, 1980; Amdt. 171-78, 49 FR 10510, Mar. 20, 1984; Amdt. 
171-107, 54 FR 40068, Sept. 29, 1989; Amdt. 171-111, 55 FR 52466, Dec. 
21, 1990; 56 FR 66157, Dec. 20, 1991; Amdt. 171-2, 59 FR 49132, Sept. 
26, 1994; Amdt. 171-141, 61 FR 21102, May 9, 1996]



Sec. 171.4  Marine pollutants.

    (a) Except as provided in paragraph (c) of this section, no person 
may offer for transportation or transport a marine pollutant, as defined 
in Sec. 171.8, in intrastate or interstate commerce except in accordance 
with the requirements of this subchapter.
    (b) The requirements of this subchapter for the transportation of 
marine pollutants are based on the provisions of Annex III of the 1973 
International Convention for Prevention of Pollution from Ships, as 
modified by the Protocol of 1978 (MARPOL 73/78).
    (c) Exceptions. Except when transported aboard vessel, the 
requirements of this subchapter specific to marine pollutants do not 
apply to non-bulk packagings transported by motor vehicles, rail cars or 
aircraft.
[Amdt. 171-116, 57 FR 52934, Nov. 5, 1993, as amended by Amdt. 107-39, 
61 FR 51337, Oct. 1, 1996]



Sec. 171.5  Temporary regulation; liquefied compressed gases in cargo tank motor vehicles.

    (a) Operation of new and existing cargo tank motor vehicles. For a 
cargo tank

[[Page 67]]

motor vehicle used to transport liquefied compressed gases, other than 
carbon dioxide, Sec. 178.337-11(a)(1)(i) of this subchapter requires 
that each internal self-closing stop valve and excess flow valve must 
automatically close if any of its attachments are sheared off or if any 
attached hoses or piping are ruptured or separated. Other regulations in 
Parts 173 and 180 of this subchapter reference this requirement or 
similar requirements in effect at the time of manufacture of a cargo 
tank motor vehicle. Notwithstanding this requirement, a DOT MC 330 or MC 
331 specification cargo tank motor vehicle, or a non-specification cargo 
tank motor vehicle conforming to the requirements of Sec. 173.315(k) of 
this subchapter, may, without certification and demonstrated performance 
of the internal self-closing stop valve or the excess flow feature or 
self-closing stop valve of its emergency discharge control system, be 
represented for use and used to transport certain liquefied compressed 
gases under the following conditions:
    (1) Use. The cargo tank motor vehicle must otherwise be operated, 
unloaded and attended in full conformance with all applicable 
requirements of this subchapter and the following additional 
requirements:
    (i) Before initiating each transfer from the cargo tank motor 
vehicle, the person performing the function shall verify that each 
component of the discharge system is of sound quality, is free of leaks, 
and that connections are secure. In addition, prior to commencing the 
first transfer of each day, the transfer hose shall be subjected to full 
transfer pressure.
    (ii) Prior to commencing transfer using a new or repaired transfer 
hose or a modified hose assembly for the first time, the hose assembly 
must be subjected to a pressure test. The pressure test must be 
performed at no less than 120 percent of the design pressure or maximum 
allowable working pressure (MAWP) marked on the cargo tank motor 
vehicle, or the pressure the hose is expected to be subjected to during 
product transfer, whichever is greater. This test must include all hose 
and hose fittings and equipment arranged in the configuration to be 
employed during transfer operations. A hose or associated equipment that 
shows signs of leakage, significant bulging, or other defects, may not 
be used. Where hoses are used to transfer liquefied compressed gases, a 
procedure must be instituted to ensure that hose assemblies are 
maintained at a level of integrity suited to each hazardous material. An 
acceptable procedure for maintenance, testing and inspection of hoses is 
outlined in publication RMA/IP-11-2, ``Manual for Maintenance, Testing 
and Inspection of Hose'', 1989 edition, published by the Rubber 
Manufacturers Association, 1400 K Street, N.W., Washington, DC 20005.
    (iii) If there is an unintentional release of lading to the 
environment during transfer, the internal self-closing stop valve shall 
be promptly activated, and the qualified person unloading the cargo tank 
motor vehicle shall promptly shut down all motive and auxiliary power 
equipment. Prompt activation of the internal self-closing stop valve may 
be accomplished through:
    (A) Compliance with Sec. 178.337-11(a)(1)(i) of this subchapter; or
    (B) A qualified person positioned within arm's reach of the 
mechanical means of closure for the internal self-closing stop valve 
throughout the unloading operation; except, that person may be away from 
the mechanical means only for the short duration necessary to engage or 
disengage the motor vehicle power take-off or other mechanical, 
electrical, or hydraulic means used to energize the pump and other 
components of the cargo tank motor vehicle's discharge system; or
    (C) A fully operational remote-controlled system capable of stopping 
the transfer of lading by operation of a transmitter carried by a 
qualified person attending unloading of the cargo tank motor vehicle. 
Where the means for closure of the internal self-closing stop valve 
includes a remote-controlled system, the attendance requirements of 
Sec. 177.834(i)(3) of this subchapter are satisfied when a qualified 
person:
    (1) Is carrying a radio transmitter that can activate the closure of 
the internal self-closing stop valve;
    (2) Remains within the operating range of the transmitter; and

[[Page 68]]

    (3) Has an unobstructed view of the cargo tank motor vehicle at all 
times that the internal stop-valve is open.
    (iv) A cargo tank motor vehicle that has an emergency discharge 
system conforming to the requirements in Sec. 178.337-11(a)(1)(i) of 
this subchapter may be operated under the provisions of this paragraph 
(a)(1).
    (v) A comprehensive written emergency operating procedure must be 
developed for all transfer operations and hazmat employees who perform 
unloading functions must be trained in its provisions. The emergency 
operating procedure must be prominently displayed in or on the cargo 
tank motor vehicle.
    (vi) As required by Sec. 172.704 of this subchapter, each 
manufacturer, assembler, retester, motor carrier and other hazmat 
employer subject to the requirements of this section shall ensure that 
its hazmat employees are trained to properly perform these new function-
specific requirements including the meaning of the marking specified in 
paragraph (b) of this section. The hazmat employer shall ensure that a 
record of the training is created, certified, and maintained as 
specified in Sec. 172.704(d) of this subchapter.
    (2) Continuing qualification. An existing in-service cargo tank 
motor vehicle may continue to be marked and documented as required by 
Part 180 of this subchapter if the following statement is added to the 
Certificate of Compliance by the owner or operating motor carrier: 
``Emergency excess flow control performance not established for this 
unit.''
    (3) New cargo tank motor vehicles. A new (unused) cargo tank motor 
vehicle manufactured, marked and certified prior to March 1, 1999, may 
be marked and certified as conforming to specification MC 331 if it 
otherwise meets all requirements of the specification and the following 
statement is added to the certification document required by 
Sec. 178.337-18 of this subchapter: ``Emergency excess flow control 
performance not established for this unit.''
    (b) Marking. The following marking must be displayed on a cargo tank 
motor vehicle used or represented for use under this section:

[GRAPHIC] [TIFF OMITTED] TR18AU97.006

    (1) The letters must be white and the background black.
    (2) The letters must be at least 1.5cm in height.
    (3) The marking must be 6cm x 15cm.
    (c) Requirements of this section are applicable to a cargo tank 
motor vehicle used to transport liquefied compressed gases, other than 
carbon dioxide, from August 16, 1997 through March 1, 1999.
[62 FR 44048, Aug. 18, 1997]



Sec. 171.6  Control numbers under the Paperwork Reduction Act.

    (a) Purpose and scope. This section collects and displays the 
control numbers assigned to the HMR collections of

[[Page 69]]

information by the Office of Management and Budget (OMB) under the 
Paperwork Reduction Act of 1995. This section complies with the 
requirements of 5 CFR 1320.7(f), 1320.12, 1320.13 and 1320.14 (OMB 
regulations implementing the Paperwork Reduction Act of 1995) for the 
display of control numbers assigned by OMB to collections of information 
of the HMR.
    (b) OMB control numbers. The table in paragraph (b)(2) of this 
section sets forth the control numbers assigned to collection of 
information in the HMR by the Office of Management and Budget (OMB) 
under the Paperwork Reduction Act of 1995.
    (1) Column 1 lists the OMB control number assigned to the HMR 
collections of information. Column 2 contains the Report Title of the 
approved collection of information. Column 3 lists the part(s) or 
section(s) in 49 CFR identified or described in the collection of 
information.
    (2) Table.

                                                                        
------------------------------------------------------------------------
                                                   Title 49 CFR part or 
  Current OMB control                                 section where     
          No.                    Title                identified and    
                                                        described       
------------------------------------------------------------------------
2137-0014.............  Cargo Tank               Secs.  107.503,        
                         Specification            107.504, 178.320,     
                         Requirements.            178.337, 178.338,     
                                                  178.345, 178.346,     
                                                  178.347, 178.348,     
                                                  180.409, 180.417.     
2137-0018.............  Inspection and Testing   Secs.  173.24, 173.32, 
                         of Portable Tank and     173.32a, 173.32b,     
                         IBC's.                   173.32 (b)(e),        
                                                  173.32c, 178.3,       
                                                  178.270, 178.271,     
                                                  178.272, 178.245,     
                                                  178.255, 178.245-1    
                                                  (a), 178.255-1,       
                                                  178.245-6, 178.702,   
                                                  178.801, 178.810,     
                                                  180.352, 178.813,     
                                                  178.703.              
2137-0022.............  Recordkeeping and        Secs.  173.34,         
                         information Collection   173.302(e),           
                         for Cylinders.           173.303(d).           
2137-0034.............  Hazardous Materials      Part 172, Secs.        
                         Shipping Papers.         173.7(a)(1),          
                                                  173.22(a)(1), 173.56  
                                                  (b)(1), (d)(1),       
                                                  (e)(2),               
                                                  173.150(f)(3)(i),     
                                                  174.24, 174.26(b)     
                                                  174.114, 175.30,      
                                                  175.35, 175.703,      
                                                  176.9, 176.24, 176.27,
                                                  176.30, 176.31,       
                                                  176.36, 176.89,       
                                                  176.90, 176.95,       
                                                  177.817.              
2137-0039.............  Hazardous Materials      Secs.  171.15, 171.16. 
                         Incident Report.                               
2137-0051.............  Rulemaking and           Part 107, Subpart B,   
                         Exemption Petitions.     Secs.  106. 31,       
                                                  106.33, 107.3, 107.5, 
                                                  107.7, 107.103,       
                                                  107.105, 107.107,     
                                                  107.109, 107.113,     
                                                  107.117, 107.121,     
                                                  107.123, 107.125,     
                                                  107.201, 107.202,     
                                                  107.203, 107.205,     
                                                  107.209, 107.211,     
                                                  107.215, 107.217,     
                                                  107.219, 107.221,     
                                                  107.223.              
2137-0510.............  RAM Transportation       Secs.  173.22(c), (d), 
                         Requirements.            173.411, 173.415(a),  
                                                  173.416(b),           
                                                  173.417(a)(5), (b)(3),
                                                  (4), 173.457(b),      
                                                  173.471 (a), (d), (f),
                                                  173.472, 173.473 (a), 
                                                  (d), 173.476 (a), (b),
                                                  (e), 173.477,         
                                                  173.478(a).           
2137-0542.............  Cryogenic Liquids        Secs.  173.33(d)(1)(ii)
                         Requirements.            , 177.816, 177.840.   

[[Page 70]]

                                                                        
2137-0557.............  Approvals for Hazardous  Secs.  107.401,        
                         Materials.               107.402, 107.403,     
                                                  107.404, 107.405,     
                                                  172.101(l)(2),        
                                                  172.102(c)(B69),      
                                                  173.2a(c)(4),         
                                                  173.4(a)(11),         
                                                  173.7(a)(1),          
                                                  173.21(f)(3)          
                                                  (h)(2)(i),            
                                                  173.24(e)(3)(iii),    
                                                  173.51(a), (b),       
                                                  173.56(a)(2), (b)(1), 
                                                  (2), (4), (c), (f),   
                                                  (g), (i), (j)(3),     
                                                  173.124(a)(1)         
                                                  (iii)(B),             
                                                  (a)(2)(iii)(D),       
                                                  173.128(d),           
                                                  173.159(f), 173.166,  
                                                  173.171(a), (c),      
                                                  173.185(d)(9), (ii),  
                                                  (iii), i, 173.214,    
                                                  173.224(d)            
                                                  173.225(b)(4), (c),   
                                                  173.245(a)(b),        
                                                  173.300a, 173.300b,   
                                                  173.305(c)(1),        
                                                  173.315(i)(12),       
                                                  173.334(d),           
                                                  173.340(a), (b),      
                                                  (c)(4), 176.340(c),   
                                                  177.806(a)(1), 178.36-
                                                  3, 178.37-3, 178.38-3,
                                                  178.39-3, 178.42-3,   
                                                  178.44-3, 178.45-3,   
                                                  178.46-3, 178.50-3,   
                                                  178.51-3, 178.53-3,   
                                                  178.55-3, 178.56-3,   
                                                  178.57-3, 178.58-3,   
                                                  178.59-3, 178.60-3,   
                                                  178.61-3(a), 178.65-3,
                                                  178.68-3, 178.270-    
                                                  3(f), 178.270-13(d),  
                                                  178.601(e)(g)(7), (h),
                                                  (k), 178.603(b),      
                                                  178.604(b)2),         
                                                  178.605(b),           
                                                  178.606(b), (c),      
                                                  178.608(b)(5),        
                                                  178.801(e)(2), (h),   
                                                  (i), 178.813(c).      
2137-0559.............  Rail Carriers and Tank   Secs.  173.10(b)(1),   
                         Car Tank Requirements.   173.31(a)(2),         
                                                  173.247(a),           
                                                  173.31(b)(6)(ii)      
                                                  174.9, 174.20(b),     
                                                  174.50, 174.61,       
                                                  172.102:              
                                                 SP: B-45, B-46, B-55, B-
                                                  61, B-69, B-77, B-78, 
                                                  B-81, 174.63(d),      
                                                 Secs.   174.81, Table  
                                                  Note b, 174.104(c),   
                                                  (e), (f), 174.114,    
                                                  174.204(a)(1), 179.3, 
                                                  179.5 179.7(b)(2),    
                                                  (5)(d), 179.22,       
                                                  180.505, 180.509,     
                                                  180.515,              
                                                  180.517(a)(b),        
                                                  180.519(d).           
2137-0572.............  Testing Requirements     Secs.  178.2(c),       
                         for Packaging.           178.601(1).           
2137-0575.............  Bulk Packaging Marking   Secs.  172.302,        
                         Requirements.            172.332, 172.336.     
2137-0582.............  Container Certification  Secs.  176.172,        
                         Statement.               176.27(c).            
2137-0586.............  Hazardous Materials      Part 110               
                         Public Sector Training                         
                         and Planning Grants.                           
2137-0595.............  Cargo Tank Motor         Secs.  178.337-11(a)(1)
                         Vehicles in Liquefied    (i).                  
                         Compressed Gas Service.                        
------------------------------------------------------------------------

[Amdt. 171-111, 56 FR 66157, Dec. 20, 1991, as amended at 57 FR 1877, 
Jan. 16, 1992; Amdt. 171-121, 58 FR 51527, Oct. 1, 1993; Amdt. 171-137, 
61 FR 33254, June 26, 1996; 62 FR 51558, Oct. 1, 1997]



Sec. 171.7  Reference material.

    (a) Matter incorporated by reference--(1) General. There is 
incorporated, by reference in parts 170-189 of this subchapter, matter 
referred to that is not specifically set forth. This matter is hereby 
made a part of the regulations in parts 170-189 of this subchapter. The 
matter subject to change is incorporated only as it is in effect on the 
date of issuance of the regulation referring to that matter. The 
material listed in paragraph (a)(3) has been approved for incorporation 
by reference by the Director of the Federal Register. Material is 
incorporated as it exists on the date of the approval and a notice of 
any change in the material

[[Page 71]]

will be published in the Federal Register. Matters referenced by 
footnote are included as part of the regulations of this subchapter.
    (2) Accessibility of materials. All incorporated matter is available 
for inspection at:
    (i) The Dockets Branch, room 8419, NASSIF Building, 400 7th Street, 
SW., Washington, DC 20590; and
    (ii) The Office of the Federal Register, 800 North Capitol Street, 
NW., suite 700, Washington, DC.
    (3) Table of material incorporated by reference. The following Table 
sets forth material incorporated by reference. The first column lists 
the name and address of the organization from which the material is 
available and the name of the material. The second column lists the 
section(s) of this subchapter, other than Sec. 171.7, in which the 
matter is referenced. The second column is presented for information 
only and may not be all inclusive.

                                                                        
------------------------------------------------------------------------
           Source and name of material               49 CFR reference   
------------------------------------------------------------------------
The Aluminum Association,                                               
  420 Lexington Avenue, New York, NY 10017                              
Aluminum Standards and Data, Seventh Edition,     172.102; 178..46 and  
 June 1982.                                        178.65               
American National Standards Institute, Inc.,                            
  1430 Broadway, New York, NY 10018                                     
ANSI/ASHRAE 15-94, Safety Code for Mechanical     173.306               
 Refrigeration.                                                         
ANSI B16.5-77, Steel Pipe Flanges, Flanged        178.345; 178.360      
 Fittings.                                                              
ANSI N14.1  Standard for Packaging of Uranium     173.417; 173.420      
 Hexafluoride for Transport, 1971, 1982, 1987                           
 and 1990 Editions.                                                     
American Pyrotechnics Association (APA),                                
  P.O. Box 213, Chestertown, MD 21620                                   
APA Standard 87-1, Standard for Construction and  173.56                
 Approval for Transportation of Fireworks and                           
 Novelties, April 1993 Edition.                                         
American Society of Mechanical Engineers,                               
  United Engineering Center, 354 47th Street,                           
   New York, NY 10017                                                   
ASME Code, Sections II (Parts A and B), V, VIII   173.32; 173.306;      
 (Division 1), and IX of 1992 Edition of           173.315; 173.318;    
 American Society of Mechanical Engineers Boiler   173.420; 178.245;    
 and Pressure Vessel Code and Addenda through      178.255; 178.270;    
 December 31, 1993.                                178.271; 178.272;    
                                                   178.337; 178.338;    
                                                   178.345; 178.346;    
                                                   178.347; 178.348;    
                                                   179.400; 180.407;    
                                                   180.417              
ASME Code, Section V (FR Nondestructive           180.407               
 Examination), 1977.                                                    
ASME Code, Section IX (FR Welding and Brazing     178.245; 178.270;     
 Qualification), 1977 and Addendum (1979).         178.337; 178.338     
American Society for Testing and Materials,                             
  100 Barr Harbor Drive, West Conshohocken, PA                          
   19428                                                                
                                                                        
  Noncurrent ASTM Standards are available from:                         
   Engineering Societies Library, 354 E. 47th                           
   Street, New York, NY 10017                                           
ASTM A 20/A 20M-93a Standard Specification for    178.337-2; 179.102-4; 
 General Requirements for Steel Plates for         179.102-17.          
 Pressure Vessels.                                                      
ASTM A 47-68  Malleable Iron Castings...........  179.200               
ASTM A 240/A 240M-94b Standard Specification for  178.57; 178.358-5;    
 Heat-Resisting Chromium and Chromium-Nickel       179.100-7; 179.100-  
 Stainless Steel Plate, Sheet and Strip for        10; 179.102-1;       
 Pressure Vessels.                                 179.102-4; 179.102-  
                                                   17; 179.200-7;       
                                                   179.201-5; 179.220-7;
                                                   179.400-5.           
ASTM A 242-81  Standard Specification for High-   179.100               
 Strength Low-Alloy Structural Steel.                                   
ASTM A 262-93a Standard Practices for Detecting   179.100-7; 179.200-7; 
 Susceptibility to Intergranular Attack in         179.201-4.           
 Austenitic Stainless Steels.                                           
ASTM A 300-58  Steel Plates for Pressure Vessels  178.337               
 for Service at Low Temperatures.                                       
ASTM A 302/A 302M-93 Standard Specification for   179.100-7; 179.200-7; 
 Pressure Vessel Plates, Alloy Steel, Manganese-   179.220-7.           
 Molybdenum and Manganese-Molybdenum Nickel.                            
ASTM A 333-67  Seamless and Welded Steel Pipe     178.45                
 for Low-Temperature Service.                                           

[[Page 72]]

                                                                        
ASTM A 366/A 366M-91 (1993)e1 Standard            178.601               
 Specification for Steel, Sheet, Carbon, Cold-                          
 Rolled, Commercial Quality.                                            
ASTM A 370-94 Standard Test Methods and           179.102-1; 179.102-4; 
 Definitions for Mechanical Testing of Steel       179.102-17.          
 Products.                                                              
ASTM A 388-67  Ultrasonic Testing and Inspection  178.45                
 of Heavy Steel Forging.                                                
ASTM A 441-81  Standard Specification for High-   178.338               
 Strength Low-Alloy Structural Manganese                                
 Vanadium Steel.                                                        
ASTM A 514-81  Standard Specification for High-   178.338               
 Yield Strength Quenched and Tempered Alloy                             
 Steel Plate, Suitable for Welding.                                     
ASTM A 516/A 516M-90 Standard Specification for   178.337-2; 179.100-7; 
 Pressure Vessel Plates, Carbon Steel, for         179.100-20; 179.102- 
 Moderate and Lower- Temperature Service.          1; 179.102-2; 179.102-
                                                   4; 179.102-17;       
                                                   179.200-7; 179.220-7.
ASTM A 537/A 537M-91 Standard Specification for   179.100-7; 179.102-4; 
 Pressure Vessel Plates, Heat-Treated, Carbon-     179.102-17.          
 Manganese-Silicon Steel.                                               
ASTM A 568/A 568M-95 Standard Specification for   178.601               
 Steel, Sheet, Carbon, and High-Strength, Low-                          
 Alloy, Hot-Rolled and Cold-Rolled, General                             
 Requirements for.                                                      
ASTM A 572-82  Standard Specification for High-   178.338; 179.100      
 Strength Low-Alloy Columbian-Vanadium Steels of                        
 Structural Quality.                                                    
ASTM A 588-81  Standard Specification for High-   179.100; 178.338      
 Strength Low-Alloy Structural Steel with 50 Ksi                        
 Minimum Yield Point to 4 in. Thick.                                    
ASTM A 606-75  Standard Specification for Steel   178.338               
 Sheet and Strip Hot-Rolled and Cold-Rolled,                            
 High-Strength, Low-Alloy, with Improved                                
 Atmospheric Corrosion Resistance, 1975                                 
 (Reapproved 1981).                                                     
ASTM A 612-72a  High Strength Steel Plates for    178.337               
 Pressure Vessels for Moderate and Lower                                
 Temperature Service.                                                   
ASTM A 633-79a  Standard Specification for        178.338               
 Normalized High-Strength Low-Alloy Structural                          
 Steel, 1979 Edition.                                                   
ASTM A 715-81  Standard Specification for Steel   178.338               
 Sheet and Strip, Hot-Rolled, High-Strength, Low-                       
 Alloy with Improved Formability, 1981.                                 
ASTM B 90-69  Magnesium Alloy Sheet and Plate...  178.251               
ASTM B 162-93a Standard Specification for Nickel  179.200-7.            
 Plate, Sheet, and Strip.                                               
ASTM B 209-93 Standard Specification for          179.100-7; 179.200-7; 
 Aluminum and Aluminum-Alloy Sheet and Plate.      179.220-7.           
ASTM B 557-84 Tension Testing Wrought and Cast    178.46; 178.251.      
 Aluminum and Magnesium-Alloy Products.                                 
ASTM B 580-79  Standard Specification for Anodie  173.316; 173.318      
 Oxide Coatings on Aluminum, 1979.                                      
ASTM D 56-93  Standard Test Method for Flash      173.120               
 Point by Tag Closed Tester.                                            
ASTM D 93-94  Standard Test Methods for Flash     173.120               
 Point by Pensky-Martens Closed Tester.                                 
ASTM D 445-88  Kinematic Viscosity of             171.8                 
 Transparent and Opaque Liquids (and the                                
 Calculation of Dynamic Viscosity).                                     
ASTM D 1200-88  Viscosity by Ford Viscosity Cup.  171.8                 
ASTM D 1838-64  Copper Strip Corrosion by         173.315               
 Liquefied Petroleum (LP) Gases.                                        
ASTM D 3278-95  Standard Test Methods for Flash   173.120               
 Point of Liquids by Setaflash Closed-Cup                               
 Apparatus.                                                             
ASTM D 3828-93, Standard Test Methods for Flash   173.120.              
 Point by Small Scale Closed Tester.                                    
ASTM D 4206-96 Standard Test Method for           173.120.              
 Sustained Burning of Liquid Mixtures Using the                         
 Small Scale Open-Cup Apparatus.                                        
ASTM D 4359-90  Standard Test Method for          171.8                 
 Determining Whether a Material is a Liquid or a                        
 Solid.                                                                 
ASTM E 8-89  Tension Testing of Metallic          178.36; 178.37;       
 Materials.                                        178.38; 178.39;      
                                                   178.44; 178.45;      
                                                   178.50; 178.51;      
                                                   178.53; 178.55;      
                                                   178.56; 178.57;      
                                                   178.58; 178.59;      
                                                   178.60; 178.61;      
                                                   178.68; 178.251      
ASTM E 23-60  Notched Bar Impact Testing of       178.57; 179.400       
 Metallic Materials.                                                    
ASTM E 112-88 Standard Test Methods for           178.44.               
 Determining Average Grain Size.                                        
ASTM E 290-92 Standard Test Method for Semi-      178.46.               
 Guided Bend Test for Ductility of Metallic                             
 Materials.                                                             
ASTM E 681-85  Standard Test Method for           173.115               
 Concentration Limits of Flammability of                                
 Chemicals.                                                             
ASTM G 23-69  Standard Recommended Practice for   172.407; 172.519      
 Operating Light-and-Water Exposure Apparatus                           
 (Carbon-Arc Type) for Exposure of Nonmetallic                          
 Materials.                                                             
ASTM G 26-70  Standard Recommended Practice for   172.407; 172.519      
 Operating Light-and-Water Exposure Apparatus                           
 (Xenon-Arc-Type) for Exposure of Nonmetallic                           
 Materials.                                                             
ASTM G 31-72 (Reapproved 1995) Standard Practice  173.137               
 for Laboratory Immersion Corrosion Testing of                          
 Metals.                                                                

[[Page 73]]

                                                                        
American Water Works Association,                                       
  1010 Vermont Avenue, NW., Suite 810,                                  
   Washington, DC 20005                                                 
AWWA Standard C207-55, Steel Pipe Flanges, 1955.  178.360               
American Welding Society,                                               
  550 N. W. Le Jeune Road, Miami, Florida 33126                         
AWS Code B 3.0; Standard Qualification            178.356               
 Procedure; 1972 (FRB 3.0-41, rev. May 1973).                           
AWS Code D 1.0; Code for Welding in Building      178.356               
 Construction (FR D 1.0-66).                                            
Association of American Railroads,                                      
  American Railroads Building, 50 F Street, NW.,                        
   Washington, DC 20001                                                 
AAR Manual of Standards and Recommended           173.31; 174.63; 179.6;
 Practices, Section C--Part III, Specifications    179.7; 179.12;       
 for Tank Cars, Specification M-1002, September    179.15; 179.16;      
 1992.                                             179.20; 179.22;      
                                                   179.100; 179.101;    
                                                   179.102; 179.103;    
                                                   179.200; 179.201;    
                                                   179.220; 179.300;    
                                                   179.400; 180.509;    
                                                   180.513; 180.515;    
                                                   180.517.             
AAR Manual of Standards and Recommended           174.55; 174.63.       
 Practices, Section I, Specially Equipped                               
 Freight Car and Intermodal Equipment, 1988.                            
AAR Specifications for Design, Fabrication and    179.16.               
 Construction of Freight Cars, Volume 1, 1988.                          
Chlorine Institute, Inc.,                                               
  2001 L Street, NW., Suite 506, Washington, DC                         
   20036                                                                
Type 1\1/2\ JQ 225, Dwg, H51970, Revision D,      173.315               
 April 5, 1989; or Type 1\1/2\ JQ 225, Dwg.                             
 H50155, Revision F, April 4, 1989.                                     
Standard Chlorine Angle Valve Assembly, Dwg. 104- 178.337-9             
 6, December 1, 1982.                                                   
Excess Flow Valve with Removable Seat, Dwg. 101-  178.337-11            
 6, September 1, 1973.                                                  
Excess Flow Valve with Removable Basket, Dwg.     178.337-11            
 106-5, September 1, 1973.                                              
Standards for Housing and Manway Covers for       178.337-10            
 Steel Cargo Tanks, Dwg. 137-3, September 1,                            
 1982.                                                                  
Compressed Gas Association, Inc.,                                       
  1725 Jefferson Davis Highway, Arlington,                              
   Virginia 22202                                                       
CGA Pamphlet C-3, Standards for Welding and       178.47; 178.50;       
 Brazing on Thinned Walled Containers, 1975.       178.51; 178.53;      
                                                   178.54; 178.56;      
                                                   178.57; 178.58;      
                                                   178.59; 178.60;      
                                                   178.61; 178.65;      
                                                   178.68.              
CGA Pamphlet C-5, Cylinder Service Life--         173.302               
 Seamless Steel High Pressure Cylinders, 1991.                          
CGA Pamphlet C-6, Standards for Visual            173.34; 180.519       
 Inspection of Steel Compressed Gas Cylinders,                          
 1993.                                                                  
CGA Pamphlet C-6.1, Standards for Visual          173.34                
 Inspection of High Pressure Aluminum Compressed                        
 Gas Cylinders, 1995.                                                   
CGA Pamphlet C-6.2, Guidelines for Visual         173.34                
 Inspection and Requalification of Fiber                                
 Reinforced High Pressure Cylinders, 1988.                              
CGA Pamphlet C-6.3, Guidelines for Visual         173.34                
 Inspection and Requalification of Low Pressure                         
 Aluminum Compressed Gas Cylinders, 1991.                               
CGA Pamphlet C-7, A Guide for the Preparation of  172.400a              
 Precautionary Markings for Compressed Gas                              
 Containers, appendix A, issued 1992 (6th                               
 Edition)..                                                             
CGA Pamphlet C-8, Standard for Requalification    173.34                
 of DOT-3HT Cylinder Design, 1985.                                      
CGA Pamphlet C-11, Recommended Practices for      178.35.               
 Inspection of Compressed Gas Cylinders at Time                         
 of Manufacture, 1993.                                                  
CGA Pamphlet C-12, Qualification Procedure for    173.34; 173.303;      
 Acetylene Cylinder Design, 1994.                  178.59; 178.60.      
CGA Pamphlet C-13, Guidelines for Periodic        173.34; 173.303       
 Visual Inspection and Requalification of                               
 Acetylene Cylinders, 1992.                                             
CGA Pamphlet C-14, Procedures for Fire Testing    173.34                
 of DOT Cylinder Pressure Relief Device Systems,                        
 1979.                                                                  
CGA Pamphlet G-2.2 Tentative Standard Method for  173.315               
 Determining Minimum of 0.2% Water in Anhydrous                         
 Ammonia, 1985.                                                         
CGA Pamphlet G-4.1, Cleaning Equipment for        178.338               
 Oxygen Service, 1985.                                                  
CGA Pamphlet S-1.1., Pressure Relief Device       173.34                
 Standards--Part 1--Cylinders for Compressed                            
 Gases, 1994 (with the exception of paragraph                           
 9.1.1.1).                                                              
CGA Pamphlet S-1.2, Safety Relief Device          173.315; 173.318      
 Standards Part 2--Cargo and Portable Tanks for                         
 Compressed Gases, 1980.                                                
CGA Technical Bulletin TB-2, Guidelines for       180.413               
 Inspection and Repair of MC-330 and MC-331                             
 Cargo Tanks, 1980.                                                     
Department of Defense (DOD),                                            
  2461 Eisenhower Avenue, Alexandria, VA 22331                          
DOD TB 700-2; NAVSEAINST 8020.8; AFTO 11A-1-47;   173.56                
 DLAR 8220.1: Explosives Hazard Classification                          
 Procedure, December 1989.                                              

[[Page 74]]

                                                                        
Department of Energy (USDOE),                                           
  100 Independence Avenue SW., Washington, DC                           
   20545                                                                
    USDOE publications available from:                                  
     Superintendent of Documents, Government                            
     Printing Office (GPO) or The National                              
     Technical Information Service (NTIS).                              
USDOE, CAPE-1662, Revision 1, and Supplement 1,   178.356; 178.358      
 Civilian Application Program Engineering                               
 Drawings.                                                              
USDOE, Material and Equipment Specification No.   178.356; 178.358      
 SP-9, Rev. 1, and Supplement--Fire Resistant                           
 Phenolic Foam.                                                         
USDOE, ORO 651--Uranium Hexafloride; A Manual of  173.417               
 Good Practices, Revision 6, 1991 edition.                              
USDOE, KSS-471, November 30, 1986--Proposal for   178.358               
 Modifications to U.S. Department of                                    
 Transportation Specification 21PF-1, Fire and                          
 Shock Resistant Phenolic Foam--Insulated Metal                         
 Overpack.                                                              
Fertilizer Institute,                                                   
  501 Second Street, NE., Washington, DC 20002                          
Definition and Test Procedures for Ammonium       174.510               
 Nitrate Fertilizer, August 1984.                                       
General Services Administration,                                        
  Specification Office, Rm. 6662, 7th and D                             
   Street, SW., Washington, DC 20407                                    
Federal Specification RR-C-901C, Cylinders,       173.302; 173.304;     
 Compressed Gas: High Pressure Steel DOT 3AA,      173.336              
 and Aluminum Applications, January 15, 1981                            
 (Superseding RR-C-901B, August 1, 1967).                               
Health and Human Services,                                              
  Centers for Disease Control and Prevention,                           
   1600 Clifton Road N.E., Atlanta, GA 30333                            
  Also available from: Superintendent of          173.134               
   Documents, Government Printing Office (GPO),                         
   HHS Publication No. (CDC) 93-8385, Biosafety                         
   in Microbiological and Biomedical                                    
   Laboratories, 3rd Edition, May 1993, Section                         
   II.                                                                  
Institute of Makers of Explosives,                                      
  1120 19th Street, Suite 310, Washington, DC                           
   20036-3605                                                           
IME Safety Library Publication No. 22 (IME        177.835               
 Standard 22), Recommendation for the Safe                              
 Transportation of Detonators in a Vehicle with                         
 Certain Other Explosive Materials, May 1993..                          
International Atomic Energy Agency (IAEA),                              
  Wagramerstrasse 5, P.O. Box 100, A-1400,                              
   Vienna, Austria                                                      
                                                                        
  Also available from: Unipub Incorporated, P.O.                        
   Box 433, New York, NY 10016                                          
IAEA, Regulations for the Safe Transport of       171.12                
 Radioactive Materials, Safety Series No. 6,                            
 1985 Edition (As Amended 1990); Including 1985                         
 Edition (Supplemented 1986 and 1988).                                  
International Civil Aviation Organization                               
 (ICAO),                                                                
  P.O. Box 400, Place de l'Aviation                                     
   Internationale, 1000 Sherbrooke Street West,                         
   Montreal, Quebec, Canada H3A 2R2                                     
                                                                        
  ICAO Technical Instructions available from:                           
   INTEREG, International Regulations,                                  
   Publishing and Distribution Organization,                            
   P.O. Box 60105, Chicago, IL 60660                                    
Technical Instructions for the Safe Transport of  171.11; 172.401       
 Dangerous Goods by Air, DOC 9284-AN/905, 1997-                         
 1998 Edition.                                                          
International Maritime Organization (IMO),                              
  4 Albert Embankment, London, SE17SR, United                           
   Kingdom                                                              
                                                                        
  or New York Nautical Instrument & Service                             
   Corporation, 140 W. Broadway, New York, NY                           
   10013                                                                
International Maritime Dangerous Goods (IMDG)     171.12; 172;401;      
 Code, 1994 Consolidated Edition, as amended by    172.407; 173.21,     
 Amendment 28 (1996) (English edition).            176.2; 176.5; 176.11;
                                                   176.27; 176.30       
International Organization for Standardization,                         
  Case Postale 56, CH-1211, Geneve 20,                                  
   Switzerland                                                          
  Also available from: ANSI, 1430 Broadway, New                         
   York, NY 10018                                                       
ISO-82-1974(E)  Steels Tensile Testing..........  178.270-3             
ISO-2431-1984(E)  Standard Cup Method...........  173.121               
ISO 780-1985(E)  Packaging-Pictorial Marking and  172.312               
 Handling of Goods.                                                     
ISO 535-1991(E)  Paper and board--Determination   178.516               
 of water absorptiveness--Cobb method.                                  
ISO 3036-1975(E) Board--Determination of          178.708               
 puncture resistance.                                                   
ISO 3574-1986(E) Cold-reduced carbon steel sheet  178.503               
 of commercial and drawing qualities.                                   
ISO 2592-1973(E) Petroleum products--             173.120               
 Determination of flash and fire points--                               
 Cleveland open cup method.                                             
ISO 9328-1--1991(E) Steel plates and strips for   173.137               
 pressure purposes--Technical delivery                                  
 conditions--Part 1: General requirements.                              
ISO/TR 4826-1979(E) - Sealed radioactive          173.469               
 sources--Leak test methods.                                            
ISO 2919-1980(E) - Sealed radioactive sources--   173.469               
 Classification.                                                        
ISO 1496-3-1995(E) - Series 1 Freight             173.411               
 Containers--Specification and Testing--Part 3:                         
 Tank Containers for Liquids, Gases and                                 
 Pressurized Dry Bulk.                                                  
Health and Human Services                                               
  Centers for Disease Control and Prevention,                           
   1600 Clifton Road N.E., Atlanta GA 30333                             
  Also available from: Superintendent of          173.134               
   Documents, Government Printing Office (GPO),                         
   HHS Publication No. (CDC) 93-8395, Biosafety                         
   in Microbiological and Biomedical                                    
   Laboratories, 3rd Edition, May 1993, Section                         
   II                                                                   
National Board of Boiler and Pressure Vessel                            
 Inspectors,                                                            
  1055 Crupper Avenue, Columbus, Ohio 43229                             
National Board Inspection Code, A Manual for      180.413               
 Boiler and Pressure Vessel Inspectors, NB-23,                          
 1992 Edition.                                                          

[[Page 75]]

                                                                        
National Fire Protection Association,                                   
  Batterymarch Park, Quincy, MA 02269                                   
NFPA Pamphlet No. 58--Standard for the Storage    173.315               
 and Handling of Liquefied Petroleum Gases, 1979.                       
National Institute of Standards and Technology,                         
  Department of Commerce, 5285 Port Royal Road,                         
   Springfield, VA 22151                                                
USDC, NBS Handbook H-28 (1957), 1957 Handbook of  178.45, 178.46        
 Screw-Thread Standards for Federal Services,                           
 Part II, December 1966 Edition.                                        
National Motor Freight Traffic Association,                             
 Inc.,                                                                  
  Agent 1616 P Street, NW., Washington, DC 20036                        
National Motor Freight Classification NMF 100-I,  177.841               
 1982.                                                                  
Organization for Economic Cooperation and                               
 Development (OECD)                                                     
  OECD Publications and Information Center, 2001                        
   L Street, Suite 700, Washington, DC 20036                            
OECD Guideline for Testing of Chemicals, No.404   173.137               
 ``Acute Dermal Irritation/Corrosion'', 1992.                           
Transport Canada,                                                       
  TDG Canadian Government Publishing Center,                            
   Supply and Services, Canada, Ottawa, Ontario,                        
   Canada K1A 059.                                                      
Transportation of Dangerous Goods Regulations, 1  171.12a; 172.401;     
 July 1985, SOR/85/77, incorporating the           172.502; 174.11      
 following Registration Numbers: SOR/85-314, SOR/                       
 85-585, SOR/85-609, SOR/86-526, SOR/88-635, SOR/                       
 87-335, SOR/87-186, SOR/89-39, SOR/89-294, SOR/                        
 90-847, SOR/91-711, SOR/91-712, SOR/92-447, SOR/                       
 92-600, SOR/93-203, SOR/93-274, SOR/93-525, SOR/                       
 94-146 and SOR/94-264 (English edition), SOR/95-                       
 241, and SOR95-547.                                                    
Truck Trailer Manufacturers Association,                                
  1020 Princess Street, Alexandria, Virginia                            
   22314                                                                
TTMA RP No. 81, Performance of Spring Loaded      178.345-10            
 Pressure Relief Valves on MC 306, MC 307, and                          
 MC 312 Tanks, May 24, 1989 Edition.                                    
TTMA RP No. 61-94, Performance of Manhole and/or  180.405               
 Fill Opening Assemblies on MC 306 and DOT 406                          
 Cargo Tanks, December 28, 1994 Edition..                               
TTMA TB No. 107, Procedure for Testing            180.405               
 Inservice, Unmarked, and/or Uncertified MC 306                         
 Type Cargo Tank Manhole Covers, May 24, 1989                           
 Edition.                                                               
United Nations,                                                         
  United Nations Sales Section, New York, NY                            
   10017                                                                
UN Recommendations on the Transport of Dangerous  172.401; 172.407;     
 Goods, Ninth Revised Edition (1995).              172.519;             
UN Recommendations on the Transport of Dangerous  173.21, 173.56 173.57,
 Goods, Manual of Tests and Criteria, Second      173.124 173.128,      
 Revised Edition, 1995.                            173.166              
                                                  173.185.              
------------------------------------------------------------------------


                                                                        
------------------------------------------------------------------------
           Source and name of material               49 CFR reference   
------------------------------------------------------------------------
Association of American Railroads,                                      
  American Railroads Building, 50 F Street, NW.,                        
   Washington, DC 20001                                                 
AAR Catalog Nos. SE60CHT; SE60CC; SE60CHTE;       179.14                
 SE60CE; SE60DC; SE60DE.                                                
AAR Catalog Nos. SE67CC; SE67CE; SE67BHT;         179.14                
 SE67BC; SE67BHTE; SE67BE.                                              
AAR Catalog Nos. SE68BHT; SE68BC; SE68BHTE;       179.14                
 SE68BE.                                                                
AAR Catalog Nos. SE69AHTE; SE69AE...............  179.14                
AAR Catalog Nos. SF70CHT; SF70CC; SF70CHTE;       179.14                
 SF70CE.                                                                
AAR Catalog Nos. SF73AC; SF73AE; SF73AHT;         179.14                
 SF73AHTE.                                                              
AAR Catalog Nos. SF79CHT; SF79CC; SF79CHTE;       179.14                
 SF79CE.                                                                
Bureau of Explosives,                                                   
  Hazardous Materials Systems (BOE), Association                        
   of American Railroads, American Railroads                            
   Building, 50 F Street, NW., Washington, DC                           
   20001                                                                
Fetterley's Formula (The Determination of the     173.315               
 Relief Dimensions for Safety Valves on                                 
 Containers in which Liquefied gas is charged                           
 and when the exterior surface of the container                         
 is exposed to a temperature of 1,200  deg.F.).                         
Pamphlet 6, Illustrating Methods for Loading and  174.55; 174.101;      
 Bracing Carload and Less-Than-Carload Shipments   174.112; 174.115;    
 of Explosives and Other Dangerous Articles,       174.290              
 1962.                                                                  
Pamphlet 6A (includes appendix No. 1, October     174.101; 174.290      
 1944 and appendix 2, December 1945),                                   
 Illustrating Methods for Loading and Bracing                           
 Carload and Less-Than-Carload Shipments of                             
 Loaded Projectiles, Loaded Bombs, etc., 1943.                          
Pamphlet 6C, Illustrating Methods for Loading     174.55; 174.63;       
 and Bracing Trailers and Less-Than-Trailer        174.101; 174.112;    
 Shipments of Explosives and Other Dangerous       174.115              
 Articles Via Trailer-on-Flatcar (TOFC) or                              
 Container-on-Flatcar (COFC), 1985.                                     
Emergency Handling of Hazardous Materials in      171.7                 
 Surface Transportation, 1989.                                          

[[Page 76]]

                                                                        
Department of Transportation (USDOT),                                   
  400 Seventh St., SW., Washington, DC 20590                            
                                                  ......................
National Association of Corrosion Engineers,                            
  1440 South Creek, Houston, Texas 77084                                
NACE Standard TM-01-69, Test Method Laboratory    173.136               
 Corrosion Testing of Metals for the Process                            
 Industries, 1969.                                                      
Society of Plastics Industries, Inc.,                                   
  Organic Peroxide Producers Safety Division,                           
   1275 K Street, NW., Suite 400, Washington, DC                        
   20005                                                                
Self Accelerating Decomposition Temperature       173.21                
 Test, 1972.                                                            
------------------------------------------------------------------------

[Amdt. 171-111, 55 FR 52466, Dec. 21, 1990]

    Editorial Note: For Federal Register citations affecting Sec. 171.7, 
see the List of CFR Sections Affected in the Finding Aids section of 
this volume.



Sec. 171.8  Definitions and abbreviations.

    In this subchapter,
    Aerosol means any non-refillable metal receptacle containing a gas 
compressed, liquefied or dissolved under pressure, the sole purpose of 
which is to expel a nonpoisonous (other than a Division 6.1 Packing 
Group III material) liquid, paste, or powder and fitted with a self-
closing release device allowing the contents to be ejected by the gas.
    Agricultural product means a hazardous material, other than a 
hazardous waste, whose end use directly supports the production of an 
agricultural commodity including, but not limited to a fertilizer, 
pesticide, soil amendment or fuel. An agricultural product is limited to 
a material in Class 3, 8 or 9, Division 2.1, 2.2, 5.1, or 6.1, or an 
ORM-D material.
    Approval means a written authorization, including a competent 
authority approval, from the Associate Administrator to perform a 
function for which prior authorization by the Associate Administrator is 
required under subchapter C of this chapter.
    Approved means approval issued or recognized by the Department 
unless otherwise specifically indicated in this subchapter.
    Asphyxiant gas means a gas which dilutes or replaces oxygen normally 
in the atmosphere.
    Atmospheric gases means air, nitrogen, oxygen, argon, krypton, neon 
and xenon.
    Authorized Inspection Agency means: (1) A jurisdiction which has 
adopted and administers one or more sections of the ASME Boiler and 
Pressure Vessel Code as a legal requirement and has a representative 
serving as a member of the ASME Conference Committee; or (2) an 
insurance company which has been licensed or registered by the 
appropriate authority of a State of the United States or a Province of 
Canada to underwrite boiler and pressure vessel insurance in such State 
or Province.
    Authorized Inspector means an Inspector who is currently 
commissioned by the National Board of Boiler and Pressure Vessel 
Inspectors and employed as an Inspector by an Authorized Inspection 
Agency.
    Bag means a flexible packaging made of paper, plastic film, 
textiles, woven material or other similar materials.
    Bar means 1 BAR = 100 kPa (14.5 psi).
    Barge means a non-selfpropelled vessel.
    Bottle means an inner packaging having a neck of relatively smaller 
cross section than the body and an opening capable of holding a closure 
for retention of the contents.
    Bottom shell means that portion of a tank car tank surface, 
excluding the head ends of the tank car tank, that lies within two feet, 
measured circumferentially, of the bottom longitudinal center line of 
the tank car tank.
    Box means a packaging with complete rectangular or polygonal faces, 
made of metal, wood, plywood, reconstituted wood, fiberboard, plastic, 
or other suitable material. Holes appropriate to the size and use of the 
packaging, for purposes such as ease of handling or opening, or to meet 
classification requirements, are permitted as

[[Page 77]]

long as they do not compromise the integrity of the packaging during 
transportation, and are not otherwise prohibited in this subchapter.
    Break-bulk means packages of hazardous materials that are handled 
individually, palletized, or unitized for purposes of transportation as 
opposed to bulk and containerized freight.
    Btu means British thermal unit.
    Bulk packaging means a packaging, other than a vessel or a barge, 
including a transport vehicle or freight container, in which hazardous 
materials are loaded with no intermediate form of containment and which 
has:
    (1) A maximum capacity greater than 450 L (119 gallons) as a 
receptacle for a liquid;
    (2) A maximum net mass greater than 400 kg (882 pounds) and a 
maximum capacity greater than 450 L (119 gallons) as a receptacle for a 
solid; or
    (3) A water capacity greater than 454 kg (1000 pounds) as a 
receptacle for a gas as defined in Sec. 173.115 of this subchapter.
    Bureau of Explosives means the Bureau of Explosives (B of E) of the 
Association of American Railroads.
    C means Celsius or Centigrade.
    Captain of the Port (COTP) means the officer of the Coast Guard, 
under the command of a District Commander, so designated by the 
Commandant for the purpose of giving immediate direction to Coast Guard 
law enforcement activities within an assigned area. As used in this 
subchapter, the term Captain of the Port includes an authorized 
representative of the Captain of the Port.
    Carfloat means a vessel that operates on a short run on an irregular 
basis and serves one or more points in a port area as an extension of a 
rail line or highway over water, and does not operate in ocean, 
coastwise, or ferry service.
    Cargo aircraft only means an aircraft that is used to transport 
cargo and is not engaged in carrying passengers. For purposes of this 
subchapter, the terms cargo aircraft only, cargo-only aircraft and cargo 
aircraft have the same meaning.
    Cargo tank means a bulk packaging which:
    (1) Is a tank intended primarily for the carriage of liquids or 
gases and includes appurtenances, reinforcements, fittings, and closures 
(for tank, see 49 CFR 178.345-1(c), 178.337-1, or 178.338-1, as 
applicable);
    (2) Is permanently attached to or forms a part of a motor vehicle, 
or is not permanently attached to a motor vehicle but which, by reason 
of its size, construction or attachment to a motor vehicle is loaded or 
unloaded without being removed from the motor vehicle; and
    (3) Is not fabricated under a specification for cylinders, portable 
tanks, tank cars, or multi-unit tank car tanks.
    Cargo tank motor vehicle means a motor vehicle with one or more 
cargo tanks permanently attached to or forming an integral part of the 
motor vehicle.
    Cargo vessel means: (1) Any vessel other than a passenger vessel; 
and
    (2) Any ferry being operated under authority of a change of 
character certificate issued by a Coast Guard Officer-in-Charge, Marine 
Inspection.
    Carrier means a person engaged in the transportation of passengers 
or property by:
    (1) Land or water, as a common, contract, or private carrier, or
    (2) Civil aircraft.
    CC means closed-cup.
    Character of vessel means the type of service in which the vessel is 
engaged at the time of carriage of a hazardous material.
    Class means hazard class. See hazard class.
    Class 1. See Sec. 173.50 of this subchapter.
    Class 2. See Sec. 173.115 of this subchapter.
    Class 3. See Sec. 173.120 of this subchapter.
    Class 4. See Sec. 173.124 of this subchapter.
    Class 5. See Sec. 173.128 of this subchapter.
    Class 6. See Sec. 173.132 of this subchapter.
    Class 7. See Sec. 173.403 of this subchapter.
    Class 8. See Sec. 173.136 of this subchapter.
    Class 9. See Sec. 173.140 of this subchapter.
    Closure means a device which closes an opening in a receptacle.

[[Page 78]]

    COFC means container-on-flat-car.
    Combination packaging means a combination of packaging, for 
transport purposes, consisting of one or more inner packagings secured 
in a non-bulk outer packaging. It does not include a composite 
packaging.
    Combustible liquid. See Sec. 173.120 of this subchapter.
    Compatibility group letter means a designated alphabetical letter 
used to categorize different types of explosive substances and articles 
for purposes of stowage and segregation. See Sec. 173.52 of this 
subchapter.
    Competent Authority means a national agency responsible under its 
national law for the control or regulation of a particular aspect of the 
transportation of hazardous materials (dangerous goods). The term 
Appropriate Authority, as used in the ICAO Technical Instructions, has 
the same meaning as Competent Authority. For purposes of this 
subchapter, the Associate Administrator for Hazardous Materials Safety 
is the Competent Authority for the United States.
    Composite packaging means a packaging consisting of an outer 
packaging and an inner receptacle, so constructed that the inner 
receptacle and the outer packaging form an integral packaging. Once 
assembled it remains thereafter an integrated single unit; it is filled, 
stored, shipped and emptied as such.
    Compressed gas. See Sec. 173.115 of this subchapter.
    Consumer commodity means a material that is packaged and distributed 
in a form intended or suitable for sale through retail sales agencies or 
instrumentalities for consumption by individuals for purposes of 
personal care or household use. This term also includes drugs and 
medicines.
    Containership means a cargo vessel designed and constructed to 
transport, within specifically designed cells, portable tanks and 
freight containers which are lifted on and off with their contents 
intact.
    Corrosive material. See Sec. 173.136 of this subchapter.
    Crate means an outer packaging with incomplete surfaces.
    Crewmember means a person assigned to perform duty in an aircraft 
during flight time.
    Cryogenic liquid. See Sec. 173.115(g) of this subchapter.
    Cylinder means a pressure vessel designed for pressures higher than 
40 psia and having a circular cross section. It does not include a 
portable tank, multi-unit tank car tank, cargo tank, or tank car.
    Dangerous when wet material. See Sec. 173.124 of this subchapter.
    Design Certifying Engineer means a person registered with the 
Department in accordance with subpart F of part 107 of this chapter who 
has the knowledge and ability to perform stress analysis of pressure 
vessels and to otherwise determine whether a cargo tank design and 
construction meets the applicable DOT specification. In addition, Design 
Certifying Engineer means a person who meets, at a minimum, any one of 
the following:
    (1) Has an engineering degree and one year of work experience in 
cargo tank structural or mechanical design.
    (2) Is currently registered as a professional engineer by the 
appropriate authority of a State of the United States or a Province of 
Canada.
    (3) Has at least three years experience in performing the duties of 
a Design Certifying Engineer by September 1, 1991, and was registered 
with the Department by December 31, 1995.
    Designated facility means a hazardous waste treatment, storage, or 
disposal facility that has been designated on the manifest by the 
generator.
    District Commander means the District Commander of the Coast Guard, 
or his authorized representative, who has jurisdiction in the particular 
geographical area.
    Division means a subdivision of a hazard class.
    DOD means the U.S. Department of Defense.
    Domestic transportation means transportation between places within 
the United States other than through a foreign country.
    Drum means a flat-ended or convex-ended cylindrical packaging made 
of metal, fiberboard, plastic, plywood, or other suitable materials. 
This definition also includes packagings of other shapes made of metal 
or plastic (e.g., round taper-necked packagings or pail-

[[Page 79]]

shaped packagings) but does not include cylinders, jerricans, wooden 
barrels or bulk packagings.
    Elevated temperature material means a material which, when offered 
for transportation or transported in a bulk packaging:
    (1) Is in a liquid phase and at a temperature at or above 100 deg.C 
(212 deg.F);
    (2) Is in a liquid phase with a flash point at or above 37.8 deg.C 
(100 deg.F) that is intentionally heated and offered for transportation 
or transported at or above its flash point; or
    (3) Is in a solid phase and at a temperature at or above 240 deg.C 
(464 deg.F).
    Engine means a locomotive propelled by any form of energy and used 
by a railroad.
    EPA means U.S. Environmental Protection Agency.
    Etiologic agent. See Sec. 173.134 of this subchapter.
    EX number means a number, preceded by the prefix Ex-, which is 
assigned by the Associate Administrator for Hazardous Materials Safety 
to identify an explosive which has been approved. See Sec. 173.56 of 
this subchapter.
    Exemption means a document issued under the authority of 49 U.S.C. 
5117 by the Associate Administrator that authorizes a person to perform 
a function that is not otherwise authorized under this subchapter, 
subchapter C, or other regulations issued under 49 U.S.C. 5101-5127 
(e.g., Federal Highway Administration routing).
    Explosive. See Sec. 173.50 of this subchapter.
    F means degree Fahrenheit.
    Federal hazardous material transportation law means 49 U.S.C. 5101 
et seq.
    Farmer means a person engaged in the production or raising of crops, 
poultry, or livestock.
    Ferry vessel means a vessel which is limited in its use to the 
carriage of deck passengers or vehicles or both, operates on a short run 
on a frequent schedule between two points over the most direct water 
route, other than in ocean or coastwise service, and is offered as a 
public service of a type normally attributed to a bridge or tunnel.
    Filling density has the following meanings:
    (1) For compressed gases in cylinders, see Sec. 173.304(a)(2) Table 
Note 1.
    (2) For compressed gases in tank cars, see Sec. 173.314(c) Table 
Note 1.
    (3) For compressed gases in cargo tanks and portable tanks, see 
Sec. 173.315(a) Table Note 1.
    (4) For cryogenic liquids in cylinders, except hydrogen, see 
Sec. 173.316(c)(1).
    (5) For hydrogen, cryogenic liquid in cylinders, see 
Sec. 173.316(c)(3) Table Note 1.
    (6) For cryogenic liquids in cargo tanks, see Sec. 173.318(f)(1).
    (7) For cryogenic liquids in tank cars, see Sec. 173.319(d)(1).
    Flammable gas. See Sec. 173.115 of this subchapter.
    Flammable liquid. See Sec. 173.120 of this subchapter.
    Flammable solid. See Sec. 173.124 of this subchapter.
    Flash point. See Sec. 173.120 of this subchapter.
    Freight container means a reusable container having a volume of 64 
cubic feet or more, designed and constructed to permit being lifted with 
its contents intact and intended primarily for containment of packages 
(in unit form) during transportation.
    Fuel tank means a tank other than a cargo tank, used to transport 
flammable or combustible liquid, or compressed gas for the purpose of 
supplying fuel for propulsion of the transport vehicle to which it is 
attached, or for the operation of other equipment on the transport 
vehicle.
    Fumigated lading. See Secs. 172.302(g) and 173.9.
    Gas means a material which has a vapor pressure greater than 300 kPa 
(43.5 psi) at 50 deg.C (122 deg.F) or is completely gaseous at 20 deg.C 
(68 deg.F) at a standard pressure of 101.3 kPa (14.7 psi).
    General public means, for purposes of subpart I of part 172, and 
subpart I of part 173 of this subchapter, any person other than an 
occupationally exposed hazmat employee.
    Gross weight or Gross mass means the weight of a packaging plus the 
weight of its contents.
    Hazard class means the category of hazard assigned to a hazardous 
material under the definitional criteria of part 173 of this subchapter 
and the provisions of the Sec. 172.101 Table. A material may meet the 
defining criteria for

[[Page 80]]

more than one hazard class but is assigned to only one hazard class.
    Hazard zone means one of four levels of hazard (Hazard Zones A 
through D) assigned to gases, as specified in Sec. 173.116(a) of this 
subchapter, and one of two levels of hazards (Hazard Zones A and B) 
assigned to liquids that are poisonous by inhalation, as specified in 
Sec. 173.133(a) of this subchapter. A hazard zone is based on the LC50 
value for acute inhalation toxicity of gases and vapors, as specified in 
Sec. 173.133(a).
    Hazardous material means a substance or material, which has been 
determined by the Secretary of Transportation to be capable of posing an 
unreasonable risk to health, safety, and property when transported in 
commerce, and which has been so designated. The term includes hazardous 
substances, hazardous wastes, marine pollutants, and elevated 
temperature materials as defined in this section, materials designated 
as hazardous under the provisions of Sec. 172.101 of this subchapter, 
and materials that meet the defining criteria for hazard classes and 
divisions in part 173 of this subchapter.
    Hazardous substance for the purposes of this subchapter, means a 
material, including its mixtures and solutions, that--
    (1) Is listed in the Appendix A to Sec. 172.101 of this subchapter;
    (2) Is in a quantity, in one package, which equals or exceeds the 
reportable quantity (RQ) listed in the Appendix A to Sec. 172.101 of 
this subchapter; and
    (3) When in a mixture or solution--
    (i) For radionuclides, conforms to paragraph 6 of the Appendix A to 
Sec. 172.101.
    (ii) For other than radionuclides, is in a concentration by weight 
which equals or exceeds the concentration corresponding to the RQ of the 
material, as shown in the following table:

                                                                        
------------------------------------------------------------------------
                                                      Concentration by  
                                                           weight       
               RQ pounds (kilograms)               ---------------------
                                                     Percent      PPM   
------------------------------------------------------------------------
5000 (2270).......................................         10    100,000
1000 (454)........................................          2     20,000
100 (45.4)........................................        0.2      2,000
10 (4.54).........................................       0.02        200
1 (0.454).........................................      0.002         20
                                                                        
------------------------------------------------------------------------

    The term does not include petroleum, including crude oil or any 
fraction thereof which is not otherwise specifically listed or 
designated as a hazardous substance in Appendix A to Sec. 172.101 of 
this subchapter, and the term does not include natural gas, natural gas 
liquids, liquefied natural gas, or synthetic gas usable for fuel (or 
mixtures of natural gas and such synthetic gas).
    Hazardous waste, for the purposes of this chapter, means any 
material that is subject to the Hazardous Waste Manifest Requirements of 
the U.S. Environmental Protection Agency specified in 40 CFR part 262.
    Hazmat employee means a person who is employed by a hazmat employer 
and who in the course of employment directly affects hazardous materials 
transportation safety. This term includes an owner-operator of a motor 
vehicle which transports hazardous materials in commerce. This term 
includes an individual, including a self-employed individual, employed 
by a hazmat employer who, during the course of employment:
    (1) Loads, unloads, or handles hazardous materials;
    (2) Manufactures, tests, reconditions, repairs, modifies, marks, or 
otherwise represents containers, drums, or packagings as qualified for 
use in the transportation of hazardous materials;
    (3) Prepares hazardous materials for transportation;
    (4) Is responsible for safety of transporting hazardous materials; 
or
    (5) Operates a vehicle used to transport hazardous materials.
    Hazmat employer means a person who uses one or more of its employees 
in connection with: transporting hazardous materials in commerce; 
causing hazardous materials to be transported or shipped in commerce; or 
representing, marking, certifying, selling, offering, manufacturing, 
reconditioning, testing, repairing, or modifying containers, drums, or 
packagings as qualified for use in the transportation of hazardous 
materials. This term includes an owner-operator of a motor vehicle which 
transports hazardous materials in commerce. This term also includes any 
department, agency, or instrumentality of the United States, a State, a 
political subdivision of a State, or an Indian tribe engaged in an

[[Page 81]]

activity described in the first sentence of this definition.
    Hermetically sealed means closed by fusion, gasketing, crimping, or 
equivalent means so that no gas or vapor can enter or escape.
    IAEA means International Atomic Energy Agency.
    IATA means International Air Transport Association.
    ICAO means International Civil Aviation Organization.
    IMO means International Maritime Organization.
    Infectious substance (etiologic agent). See Sec. 173.134 of this 
subchapter.
    Inner packaging means a packaging for which an outer packaging is 
required for transport. It does not include the inner receptacle of a 
composite packaging.
    Inner receptacle means a receptacle which requires an outer 
packaging in order to perform its containment function. The inner 
receptacle may be an inner packaging of a combination packaging or the 
inner receptacle of a composite packaging.
    Intermediate bulk container (IBC) means a rigid or flexible portable 
packaging, other than a cylinder or portable tank, which is designed for 
mechanical handling. Standards for intermediate bulk containers 
manufactured in the United States are set forth in subparts N and O of 
part 178 of this subchapter.
    Intermediate packaging means a packaging which encloses an inner 
packaging or article and is itself enclosed in an outer packaging.
    Intermodal container means a freight container designed and 
constructed to permit it to be used interchangeably in two or more modes 
of transport.
    Intermodal portable tank or IM portable tank means a specific class 
of portable tanks designed primarily for international intermodal use.
    International transportation means transportation--
    (1) Between any place in the United States and any place in a 
foreign country;
    (2) Between places in the United States through a foreign country; 
or
    (3) Between places in one or more foreign countries through the 
United States.
    Irritating material. See Sec. 173.132(a)(2) of this subchapter.
    Jerrican means a metal or plastic packaging of rectangular or 
polygonal cross-section.
    Limited quantity, when specified as such in a section applicable to 
a particular material, means the maximum amount of a hazardous material 
for which there is a specific labeling or packaging exception.
    Liquid means a material, other than an elevated temperature 
material, with a melting point or initial melting point of 20 deg.C 
(68 deg.F) or lower at a standard pressure of 101.3 kPa (14.7 psi). A 
viscous material for which a specific melting point cannot be determined 
must be subjected to the procedures specified in ASTM D 4359 ``Standard 
Test Method for Determining Whether a Material is Liquid or Solid''.
    Liquid phase means a material that meets the definition of liquid 
when evaluated at the higher of the temperature at which it is offered 
for transportation or at which it is transported, not at the 37.8 deg.C 
(100 deg.F) temperature specified in ASTM D 4359-84.
    Magazine vessel means a vessel used for the receiving, storing, or 
dispensing of explosives.
    Magnetic material. See Sec. 173.21(d) of this subchapter.
    Marine pollutant, means a hazardous material which is listed in 
appendix B to Sec. 172.101 of this subchapter and, when in a solution or 
mixture of one or more marine pollutants, is packaged in a concentration 
which equals or exceeds:
    (1) Ten percent by weight of the solution or mixture for materials 
listed in the appendix; or
    (2) One percent by weight of the solution or mixture for materials 
that are identified as severe marine pollutants in the appendix.
    Marking means a descriptive name, identification number, 
instructions, cautions, weight, specification, or UN marks, or 
combinations thereof, required by this subchapter on outer packagings of 
hazardous materials.
    Material of trade means a hazardous material, other than a hazardous 
waste, that is carried on a motor vehicle--

[[Page 82]]

    (1) For the purpose of protecting the health and safety of the motor 
vehicle operator or passengers;
    (2) For the purpose of supporting the operation or maintenance of a 
motor vehicle (including its auxiliary equipment); or
    (3) By a private motor carrier (including vehicles operated by a 
rail carrier) in direct support of a principal business that is other 
than transportation by motor vehicle.
    Material poisonous by inhalation means:
    (1) A gas meeting the defining criteria in Sec. 173.115(c) of this 
subchapter and assigned to Hazard Zone A, B, C, or D in accordance with 
Sec. 173.116(a) of this subchapter;
    (2) A liquid (other than as a mist) meeting the defining criteria in 
Sec. 173.132(a)(1)(iii) of this subchapter and assigned to Hazard Zone A 
or B in accordance with Sec. 173.133(a) of this subchapter; or
    (3) Any material identified as an inhalation hazard by a special 
provision in Column 7 of the Sec. 172.101 Table.
    Maximum Allowable Working Pressure or MAWP For DOT specification 
cargo tanks used to transport liquid hazardous materials, see 
Sec. 178.345-1(k).
    Maximum capacity means the maximum inner volume of receptacles or 
packagings.
    Maximum net mass means the allowable maximum net mass of contents in 
a single packaging, or as used in subpart M of part 178 of this 
subchapter, the maximum combined mass of inner packaging, and the 
contents thereof.
    Miscellaneous hazardous material. See Sec. 173.140 of this 
subchapter.
    Mixture means a material composed of more than one chemical compound 
or element.
    Mode means any of the following transportation methods; rail, 
highway, air, or water.
    Motor vehicle includes a vehicle, machine, tractor, trailer, or 
semitrailer, or any combination thereof, propelled or drawn by 
mechanical power and used upon the highways in the transportation of 
passengers or property. It does not include a vehicle, locomotive, or 
car operated exclusively on a rail or rails, or a trolley bus operated 
by electric power derived from a fixed overhead wire, furnishing local 
passenger transportation similar to street-railway service.
    Name of contents means the proper shipping name as specified in 
Sec. 172.101 of this subchapter.
    Navigable waters means, for the purposes of this subchapter, waters 
of the United States, including the territorial seas.
    Non-bulk packaging means a packaging which has:
    (1) A maximum capacity of 450 L (119 gallons) or less as a 
receptacle for a liquid;
    (2) A maximum net mass of 400 kg (882 pounds) or less and a maximum 
capacity of 450 L (119 gallons) or less as a receptacle for a solid; or
    (3) A water capacity of 454 kg (1000 pounds) or less as a receptacle 
for a gas as defined in Sec. 173.115 of this subchapter.
    Nonflammable gas. See Sec. 173.115 of this subchapter.
    N.O.S. means not otherwise specified.
    n.o.s. description means a shipping description from the 
Sec. 172.101 table which includes the abbreviation n.o.s., and as 
contained in the lists in Sec. 172.203(k)(3) of this subchapter, 
regarding additional description requirements.
    NPT means an American Standard taper pipe thread conforming to 
requirements of Federal Standard H28, part II, section VII. See 
Sec. 171.7(d)(12).
    NRC (non-reusable container) means a packaging (container) whose 
reuse is restricted in accordance with the provisions of Sec. 173.28 of 
this subchapter.
    Occupationally exposed hazmat employee means a hazmat employee whose 
duties involve exposure to ionizing radiation.
    Occupied caboose means a rail car being used to transport non-
passenger personnel.
    Officer in Charge, Marine Inspection means a person from the 
civilian or military branch of the Coast Guard designated as such by the 
Commandant and who under the supervision and direction of the Coast 
Guard District Commander is in charge of a designated inspection zone 
for the performance of duties with respect to the enforcement and 
administration of title 52, Revised Statutes, acts amendatory thereof or 
supplemental thereto,

[[Page 83]]

rules and regulations thereunder, and the inspection required thereby.
    Offshore supply vessel means a cargo vessel of less than 500 gross 
tons that regularly transports goods, supplies or equipment in support 
of exploration or production of offshore mineral or energy resources.
    Operator means a person who controls the use of an aircraft, vessel, 
or vehicle.
    Organic peroxide. See Sec. 173.128 of this subchapter.
    ORM means other regulated material. See Sec. 173.144 of this 
subchapter.
    Outage or ullage means the amount by which a packaging falls short 
of being liquid full, usually expressed in percent by volume.
    Outer packaging means the outermost enclosure of a composite or 
combination packaging together with any absorbent materials, cushioning 
and any other components necessary to contain and protect inner 
receptacles or inner packagings.
    Overpack, except as provided in subpart K of part 178 of this 
subchapter, means an enclosure that is used by a single consignor to 
provide protection or convenience in handling of a package or to 
consolidate two or more packages. Overpack does not include a transport 
vehicle, freight container, or aircraft unit load device. Examples of 
overpacks are one or more packages:
    (1) Placed or stacked onto a load board such as a pallet and secured 
by strapping, shrink wrapping, stretch wrapping, or other suitable 
means; or
    (2) Placed in a protective outer packaging such as a box or crate.
    Oxidizer. See Sec. 173.127 of this subchapter.
    Oxidizing gas means a gas which may, generally by providing oxygen, 
cause or contribute to the combustion of other material more than air 
does.
    Oxygen generator (chemical) means a device containing chemicals that 
upon activation release oxygen as a product of chemical reaction.
    Package or Outside Package means a packaging plus its contents. For 
radioactive materials, see Sec. 173.403 of this subchapter.
    Packaging means a receptacle and any other components or materials 
necessary for the receptacle to perform its containment function in 
conformance with the minimum packing requirements of this subchapter. 
For radioactive materials packaging, see Sec. 173.403 of this 
subchapter.
    Packing group means a grouping according to the degree of danger 
presented by hazardous materials. Packing Group I indicates great 
danger; Packing Group II, medium danger; Packing Group III, minor 
danger. See Sec. 172.101(f) of this subchapter.
    Passenger (With respect to vessels and for the purposes of part 176 
only) means a person being carried on a vessel other than:
    (1) The owner or his representative;
    (2) The operator;
    (3) A bona fide member of the crew engaged in the business of the 
vessel who has contributed no consideration for his carriage and who is 
paid for his services; or
    (4) A guest who has not contributed any consideration directly or 
indirectly for his carriage.
    Passenger-carrying aircraft means an aircraft that carries any 
person other than a crewmember, company employee, an authorized 
representative of the United States, or a person accompanying the 
shipment.
    Passenger vessel means--
    (1) A vessel subject to any of the requirements of the International 
Convention for the Safety of Life at Sea, 1974, which carries more than 
12 passengers;
    (2) A cargo vessel documented under the laws of the United States 
and not subject to that Convention, which carries more than 16 
passengers;
    (3) A cargo vessel of any foreign nation that extends reciprocal 
privileges and is not subject to that Convention and which carries more 
than 16 passengers; and
    (4) A vessel engaged in a ferry operation and which carries 
passengers.
    Person means an individual, firm, copartnership, corporation, 
company, association, joint-stock association, including any trustee, 
receiver, assignee, or similar representative thereof; or government, 
Indian tribe, or agency or instrumentality of any government or Indian 
tribe when it offers hazardous

[[Page 84]]

material for transportation in commerce or transports hazardous material 
to further a commercial enterprise, but such term does not include:
    (1) The United States Postal Service;
    (2) For the purposes of 49 U.S.C. 5123 and 5124, any agency or 
instrumentality of the Federal Government.
    Placarded car means a rail car which is placarded in accordance with 
the requirements of part 172 of this subchapter except those cars 
displaying only the FUMIGATION placards as required by Sec. 172.510.
    Poisonous gas. See Sec. 173.115 of this subchapter.
    Poisonous materials. See Sec. 173.132 of this subchapter.
    Portable tank means a bulk packaging (except a cylinder having a 
water capacity of 1000 pounds or less) designed primarily to be loaded 
onto, or on, or temporarily attached to a transport vehicle or ship and 
equipped with skids, mountings, or accessories to facilitate handling of 
the tank by mechanical means. It does not include a cargo tank, tank 
car, multi-unit tank car tank, or trailer carrying 3AX, 3AAX, or 3T 
cylinders.
    Preferred route or Preferred highway is a highway for shipment of 
highway route controlled quantities of radioactive materials so 
designated by a State routing agency, and any Interstate System highway 
for which an alternative highway has not been designated by such State 
agency as provided by Sec. 177.825(b) of this subchapter.
    Primary hazard means the hazard class of a material as assigned in 
the Sec. 172.101 table.
    Private track or Private siding means track located outside of a 
carrier's right-of-way, yard, or terminals where the carrier does not 
own the rails, ties, roadbed, or right-of-way and includes track or 
portion of track which is devoted to the purpose of its user either by 
lease or written agreement, in which case the lease or written agreement 
is considered equivalent to ownership.
    Proper shipping name means the name of the hazardous material shown 
in Roman print (not italics) in Sec. 172.101 of this subchapter.
    P.s.i. or psi means pounds per square inch.
    P.s.i.a. or psia means pounds per square inch absolute.
    P.s.i.g. or psig means pounds per square inch gauge.
    Public vessel means a vessel owned by and being used in the public 
service of the United States. It does not include a vessel owned by the 
United States and engaged in a trade or commercial service or a vessel 
under contract or charter to the United States.
    Pyrophoric liquid. See Sec. 173.124(b) of this subchapter.
    Radioactive materials. See Sec. 173.403 of this subchapter for 
definitions relating to radioactive materials.
    Rail car means a car designed to carry freight or non-passenger 
personnel by rail, and includes a box car, flat car, gondola car, hopper 
car, tank car, and occupied caboose.
    Railroad means a person engaged in transportation by rail.
    Receptacle means a containment vessel for receiving and holding 
materials, including any means of closing.
    Registered Inspector means a person registered with the Department 
in accordance with subpart F of part 107 of this chapter who has the 
knowledge and ability to determine whether a cargo tank conforms with 
the applicable DOT specification. In addition, Registered Inspector 
means a person who meets, at a minimum, any one of the following:
    (1) Has an engineering degree and one year of work experience.
    (2) Has an associate degree in engineering and two years of work 
experience.
    (3) Has a high school diploma or General Equivalency Diploma) and 
three years of work experience.
    (4) Has at least three years experience in performing the duties of 
a Registered Inspector by September 1, 1991, and was registered with the 
Department by December 31, 1995.
    Regulated medical waste. See Sec. 173.134 of this subchapter.
    Reportable quantity (RQ) for the purposes of this subchapter means 
the quantity specified in column 3 of the appendix to Sec. 172.101 for 
any material identified in Column 1 of the appendix.
    Research means investigation or experimentation aimed at the 
discovery

[[Page 85]]

of new theories or laws and the discovery and interpretation of facts or 
revision of accepted theories or laws in the light of new facts.
    Residue means the hazardous material remaining in a packaging, 
including a tank car, after its contents have been unloaded to the 
maximum extent practicable and before the packaging is either refilled 
or cleaned of hazardous material and purged to remove any hazardous 
vapors.
    RSPA means the Research and Special Programs Administration, U.S. 
Department of Transportation, Washington, DC 20590.
    SADT means self-accelerated decomposition temperature. See 
Sec. 173.21(f) of this subchapter.
    Salvage packaging means a special packaging conforming to Sec. 173.3 
of this subchapter into which damaged, defective or leaking hazardous 
materials packages, or hazardous materials that have spilled or leaked, 
are placed for purposes of transport for recovery or disposal.
    SCF (standard cubic foot) means one cubic foot of gas measured at 
60 deg. F. and 14.7 psia.
    Sheathing means a covering consisting of a smooth layer of wood 
placed over metal and secured to prevent any movement.
    Shipping paper means a shipping order, bill of lading, manifest or 
other shipping document serving a similar purpose and containing the 
information required by Secs. 172.202, 172.203 and 172.204.
    Siftproof packaging means a packaging impermeable to dry contents, 
including fine solid material produced during transportation.
    Single packaging means a non-bulk packaging other than a combination 
packaging.
    Solid means a material which is not a gas or a liquid.
    Solution means any homogeneous liquid mixture of two or more 
chemical compounds or elements that will not undergo any segregation 
under conditions normal to transportation.
    Specification packaging means a packaging conforming to one of the 
specifications or standards for packagings in part 178 or part 179 of 
this subchapter.
    Spontaneously combustible material. See Sec. 173.124(b) of this 
subchapter.
    State means a State of the United States, the District of Columbia, 
the Commonwealth of Puerto Rico, the Commonwealth of the Northern 
Mariana Islands, the Virgin Islands, American Samoa, Guam, or any other 
territory or possession of the United States designated by the 
Secretary.
    State-designated route means a preferred route selected in 
accordance with U.S. DOT ``Guidelines for Selecting Preferred Highway 
Routes for Highway Route Controlled Quantities of Radioactive 
Materials'' or an equivalent routing analysis which adequately considers 
overall risk to the public.
    Stowage means the act of placing hazardous materials on board a 
vessel.
    Strong outside container means the outermost enclosure which 
provides protection against the unintentional release of its contents 
under conditions normally incident to transportation.
    Subsidiary hazard means a hazard of a material other than the 
primary hazard. (See primary hazard).
    Table in Sec. 172.101 or Sec. 172.101 table means the Hazardous 
Materials Table in Sec. 172.101 of this subchapter.
    Technical name means a recognized chemical name or microbiological 
name currently used in scientific and technical handbooks, journals, and 
texts. Generic descriptions are authorized for use as technical names 
provided they readily identify the general chemical group, or 
microbiological group. Examples of acceptable generic chemical 
descriptions are organic phosphate compounds, petroleum aliphatic 
hydrocarbons and tertiary amines. For proficiency testing only, generic 
microbiological descriptions such as bacteria, mycobacteria, fungus, and 
viral samples may be used. Except for names which appear in subpart B of 
part 172 of this subchapter, trade names may not be used as technical 
names.
    TOFC means trailer-on-flat-car.
    Top shell means the tank car tank surface, excluding the head ends 
and bottom shell of the tank car tank.
    Trailership means a vessel, other than a carfloat, specifically 
equipped to carry motor transport vehicles and

[[Page 86]]

fitted with installed securing devices to tie down each vehicle. The 
term trailership includes Roll-on/Roll-off (RO/RO) vessels.
    Train means one or more engines coupled with one or more rail cars, 
except during switching operations or where the operation is that of 
classifying and assembling rail cars within a railroad yard for the 
purpose of making or breaking up trains.
    Trainship means a vessel other than a rail car ferry or carfloat, 
specifically equipped to transport railroad vehicles, and fitted with 
installed securing devices to tie down each vehicle.
    Transport vehicle means a cargo-carrying vehicle such as an 
automobile, van, tractor, truck, semitrailer, tank car or rail car used 
for the transportation of cargo by any mode. Each cargo-carrying body 
(trailer, rail car, etc.) is a separate transport vehicle.
    UFC means Uniform Freight Classification.
    UN means United Nations.
    UN standard packaging means a packaging conforming to standards in 
the UN Recommendations on the Transport of Dangerous Goods.
    Unit load device means any type of freight container, aircraft 
container, aircraft pallet with a net, or aircraft pallet with a net 
over an igloo.
    United States means a State of the United States, the District of 
Columbia, the Commonwealth of Puerto Rico, the Commonwealth of the 
Northern Mariana Islands, the Virgin Islands, American Samoa, Guam, or 
any other territory or possession of the United States designated by the 
Secretary.
    Vessel includes every description of watercraft, used or capable of 
being used as a means of transportation on the water.
    Viscous liquid means a liquid material which has a measured 
viscosity in excess of 2500 centistokes at 25 deg. C. (77 deg. F.) when 
determined in accordance with the procedures specified in ASTM Method D 
445-72 ``Kinematic Viscosity of Transparent and Opaque Liquids (and the 
Calculation of Dynamic Viscosity)'' or ASTM Method D 1200-70 ``Viscosity 
of Paints, Varnishes, and Lacquers by Ford Viscosity Cup.''
    Volatility refers to the relative rate of evaporation of materials 
to assume the vapor state.
    Water reactive material. See Sec. 173.124(c) of this subchapter.
    Water resistant means having a degree of resistance to permeability 
by and damage caused by water in liquid form.
    Wooden barrel means a packaging made of natural wood, of round 
cross-section, having convex walls, consisting of staves and heads and 
fitted with hoops.
    W.T. means watertight.
[Amdt. 171-32, 41 FR 15994, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting Sec. 171.8, 
see the List of CFR Sections Affected appearing in the Finding Aids 
section of this volume.

    Effective Date Note: By Amdt. 171-151, 62 FR 1227, Jan. 8, 1997, in 
Sec. 171.8, the definition for ``Fumigated lading'' was added, effective 
Oct. 1, 1997. At 62 FR 39398, July 22, 1997, the effective date was 
delayed until Oct. 1, 1998.



Sec. 171.9  Rules of construction.

    (a) In this subchapter, unless the context requires otherwise: (1) 
Words imparting the singular include the plural;
    (2) Words imparting the plural include the singular; and
    (3) Words imparting the masculine gender include the feminine;
    (b) In this subchapter, the word: (1) ``Shall'' is used in an 
imperative sense;
    (2) ``Must'' is used in an imperative sense;
    (3) ``Should'' is used in a recommendatory sense;
    (4) ``May'' is used in a permissive sense to state authority or 
permission to do the act described, and the words ``no person may * * 
*'' or ``a person may not * * *'' means that no person is required, 
authorized, or permitted to do the act described; and
    (5) ``Includes'' is used as a word of inclusion not limitation.
[Amdt. 171-32, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 171-32A, 
41 FR 40630, Sept. 20, 1976; Amdt. 171-121, 58 FR 51528, Oct. 1, 1993]



Sec. 171.10  Units of measure.

    (a) General. To ensure compatibility with international 
transportation standards, most units of measure in this subchapter are 
expressed using the

[[Page 87]]

International System of Units (``SI'' or metric). Where SI units appear, 
they are the regulatory standard. U.S. standard or customary units, 
which appear in parentheses following the SI units, are for information 
only and are not intended to be the regulatory standard.
    (b) Abbreviations for SI units of measure generally used throughout 
this subchapter are as shown in paragraph (c) of this section. Customary 
units shown throughout this subchapter are generally not abbreviated.
    (c) Conversion values. (1) Conversion values are provided in the 
following table and are based on values provided in ASTM E 380-89, 
``Standard for Metric Practice.''
    (2) If an exact conversion is needed, the following conversion table 
should be used.

                                    Table of Conversion Factors for SI Units                                    
----------------------------------------------------------------------------------------------------------------
            Measurement                  SI to U.S. standard                    U.S. standard to SI             
----------------------------------------------------------------------------------------------------------------
Activity...........................  1 TBq=27 Ci................  1 Ci=0.037 TBq.                               
Length.............................  1 cm=0.3937008 in..........  1 in=2.540000 cm                              
                                     1 m=3.280840 ft............  1 ft=0.3048000 m                              
Thickness..........................  1 mm=0.03937008 in.........  1 in=25.40000 mm                              
Mass (weight)......................  1 kg=2.204622 lb...........  1 lb=0.4535924 kg                             
                                     1 gr=0.03527397 oz.........  1 oz=28.34952 gr                              
Pressure...........................  1 kPa=0.1450377 psi........  1 psi=6.894757 kPa                            
                                     1 Bar=100 kPa=14.504 psi...  1 psi=0.06895 Bar                             
                                     1 kPa=7.5 mm Hg............                                                
Radiation level....................  1 Sv/hr=100 rem/hr.........  1 rem/hr=0.01 Sv/hr                           
Volume (liquid)....................  1 l=0.2641720 gal..........  1 gal=3.785412 l                              
                                     1 ml=0.03381402 oz.........  1 oz=29.57353 ml                              
                                     1 m\3\=35.31466 ft\3\......  1 ft\3\=0.02831685 m\3\                       
Density............................  1 kg/m\3\=0.06242797 lb/     1 lb/ft\3\=16.01846 kg/m\3\                   
                                      ft\3\.                                                                    
----------------------------------------------------------------------------------------------------------------
Abbreviation for units of measure are as follows:                                                               
Unit of measure and abbreviation:                                                                               
(SI): millimeter, mm; centimeter, cm; meter, m; gram, g; kilogram, kg; kiloPascal, kPa; liter, L; milliliter,   
  ml; cubic meter, m\3\; Terabecquerel, TBq; Gigabecquerel, GBq; millisievert, mSv;                             
(U.S.): Inch, in; foot, ft; ounce, oz; pound, lb; pounds per square inch, psi; gallon, gal; cubic feet, ft \3\; 
  Curie, Ci; millicurie, mCi; millirem, mrem.                                                                   

[Amdt. 171-111, 56 FR 66159, Dec. 20, 1991, as amended by Amdt. 171-136, 
60 FR 49108, Sept. 21, 1995; Amdt. 171-135, 60 FR 50302, Sept. 28, 1995]



Sec. 171.11  Use of ICAO Technical Instructions.

    Notwithstanding the requirements of parts 172 and 173 of this 
subchapter, a hazardous material may be transported by aircraft, and by 
motor vehicle either before or after being transported by aircraft, in 
accordance with the ICAO Technical Instructions if the hazardous 
material:
    (a) Is packaged, marked, labeled, classified, described and 
certified on a shipping paper and otherwise in a condition for shipment 
as required by the ICAO Technical Instructions;
    (b) Is within the quantity limits prescribed for transportation by 
either passenger-carrying or cargo aircraft, as appropriate, as 
specified in the ICAO Technical Instructions;
    (c) Is not a forbidden material or package according to Sec. 173.21 
of this subchapter or Column 3 of the Sec. 172.101 Table; and
    (d) Fulfills the following additional requirements as applicable:
    (1) For a material that meets the definition of a hazardous 
substance as defined in this subchapter, the shipping paper and package 
markings must conform to the provisions in Sec. 172.203(c) and 172.324, 
respectively, of this subchapter.
    (2) When a hazardous material, which is subject to the requirements 
of the ICAO Technical Instructions, is also a hazardous waste as defined 
in this subchapter:
    (i) The word ``Waste'' must precede the proper shipping name on 
shipping papers and package markings; and
    (ii) It must comply with Sec. 172.205 with respect to the hazardous 
waste manifests.
    (3) When a hazardous material is not subject to the requirements of 
the ICAO Technical Instructions, it must be transported as required by 
this subchapter.

[[Page 88]]

    (4) When a hazardous material that is regulated by this subchapter 
for transportation by highway is transported by motor vehicle on a 
public highway under the provisions of this section, the following 
requirements apply:
    (i) The motor vehicle must be placarded in accordance with subpart F 
of part 172 of this subchapter; and
    (ii) The shipping paper must include an indication that the shipment 
is being made under the provisions of this section or must include the 
letters ``ICAO.''
    (5) If a liquid or solid material in a package meets the definition 
of a poison according to this subchapter, and the fact that it is a 
poison is not disclosed in the shipping name or by a class entry, an 
indication that the material is a poison shall be entered on the 
shipping paper in association with the basic description. For 
transportation by motor vehicle, this indication must be made by 
entering the word ``Poison or Toxic'' on the shipping paper in 
association with the basic description.
    (6) For radioactive materials:
    (i) Shipping papers for highway route controlled quantity 
radioactive materials shipments must meet the requirements of 
Sec. 172.203(d)(4) of this subchapter,
    (ii) Competent authority certification and any necessary 
revalidation for Type B, Type B(U), Type B(M), and fissile materials 
packages must be obtained from the appropriate authorities as specifed 
in Secs. 173.471, 173.472 and 173.473 of this subchapter, and all 
requirements of the certificates and revalidations must be met,
    (iii) Except for limited quantities of Class 7 (radioactive) 
material, the provisions of Secs. 172.204(c)(4), 173.448(e), (f) and 
(g)(3) of this subchapter apply.
    (iv) Limited quantities of radioactive materials must meet the 
provisions of Sec. 173.421, Sec. 173.424 or Sec. 173.426 as appropriate 
of this subchapter, and
    (v) Type A package contents shall be limited in accordance with 
Sec. 173.431 of this subchapter.
    (7) If a United States variation is indicated in the ICAO Technical 
Instructions for any provision governing the transport of the hazardous 
material, the hazardous material is transported in conformance with that 
variation.
    (8) Abbreviations may not be used in shipping paper entries or 
package markings unless they are specifically authorized by this 
subchapter. ICAO class or division numbers are not considered to be 
abbreviations.
    (9) When a hazardous material, which is subject to the requirements 
of the ICAO Technical Instructions, is a material poisonous by 
inhalation (see Sec. 171.8 of this subchapter)--
    (i) The shipping description must include the words ``Toxic 
Inhalation Hazard'' or ``Poison-Inhalation Hazard'' or ``Inhalation 
Hazard'', as required in Sec. 172.203(m) of this subchapter;
    (ii) The material must be packaged in accordance with the 
requirements of this subchapter; and
    (iii) The package must be marked in accordance with Sec. 172.313 of 
this subchapter and labeled with ``POISON'' or ``POISON GAS'', as 
appropriate, in accordance with subpart E of part 172 of this 
subchapter.
    (10) Shipments of hazardous materials under this section must 
conform to the requirements for emergency response information as 
prescribed in subpart G of part 172 of this subchapter.
    (11) Packages of Class 1 (explosive) materials must be marked in 
accordance with Sec. 172.320 of this subchapter.
    (12) If an ammonium nitrate fertilizer or ammonium nitrate mixed 
fertilizer, must not meet the definition and criteria of a Class 1 
(explosive) material.
    (13) Transportation of marine pollutants, as defined in Sec. 171.8 
of this subchapter, in bulk packagings must conform to the requirements 
of Secs. 172.203(1) and 172.322 of this subchapter.
    (14) An aerosol must meet the definition for ``Aerosol'' in 
Sec. 171.8.
    (15) An oxygen generator (chemical) must be classed, approved, and 
described in accordance with the requirements of this subchapter.
[Amdt. 171-69, 47 FR 54821, Dec. 6, 1982]

    Editorial Note: For Federal Register citations affecting 
Sec. 171.11, see the List of CFR Sections Affected in the Finding Aids 
section of this volume.

    Effective Date Note: By Amdt. 171-151, 62 FR 1227, Jan. 8, 1997, in 
Sec. 171.11(d)(9)(iii),

[[Page 89]]

the words ``with `POISON' '' were replaced with the words ``with `POISON 
INHALATION HAZARD' '', effective October 1, 1997. At 62 FR 39398, July 
22, 1997, the effective date was delayed until October 1, 1998.



Sec. 171.12  Import and export shipments.

    (a) Importer's responsibility. Except in the case of a shipment from 
Canada conforming to Sec. 171.12a of this subchapter, each person 
importing a hazardous material into the United States shall provide the 
shipper and the forwarding agent at the place of entry into the United 
States timely and complete information as to the requirements of this 
subchapter that will apply to the shipment of the material within the 
United States. The shipper, directly or through the forwarding agent at 
the place of entry, shall provide the initial carrier in the United 
States the certificate of compliance required by Sec. 172.204 of this 
subchapter. The carrier may not accept the material for transportation 
unless the required certification is provided.
    (b) IMDG Code. The IMDG Code sets forth descriptions, 
classifications, packagings, labeling and vessel stowage requirements. 
Notwithstanding the provisions of this subchapter, a material which is 
packaged, marked, classed, labeled, placarded, described, stowed and 
segregated, and certified (including a container packing certification, 
if applicable) in accordance with the IMDG Code, and otherwise conforms 
to the requirements of this section, may be offered and accepted for 
transportation and transported within the United States. The following 
conditions and limitations apply:
    (1) The provisions of this paragraph (b) apply only if all or part 
of the transportation is by vessel.
    (2) A number of materials listed in the IMDG Code are not subject to 
the requirements of this subchapter. The provisions of this subchapter 
do not apply to materials listed in the IMDG Code which are not 
designated as hazardous materials under this subchapter. These materials 
may, however, be transported in the U.S. when described, marked and 
labeled in accordance with the IMDG Code. 0
    (3) A material designated as a hazardous material under this 
subchapter which is not subject to the requirements of the IMDG Code may 
not be transported under the provisions of this section.
    (4) A forbidden material or package according to Sec. 173.21 of this 
subchapter or Column 3 of the Sec. 172.101 Table may not be transported 
under the provisions of this section.
    (5) Except for packagings conforming to the requirements of Section 
26 of the General Introduction to the IMDG Code, bulk packagings must 
conform to the requirements of this subchapter.
    (6) For export, packagings must conform to the applicable 
requirements in Secs. 173.24, 173.24a and 173.28 of this subchapter.
    (7) A Class 1 material must be classed and approved under the 
procedures in subpart C of part 173 of this subchapter and conform to 
the requirements of Sec. 172.320 and part 176 of this subchapter.
    (8) When a hazardous material, which is subject to the requirements 
of the IMDG Code, is a material poisonous by inhalation (see Sec. 171.8 
of this subchapter)--
    (i) The shipping description must include the words `Toxic 
Inhalation Hazard' or ``Poison-Inhalation Hazard'' or ``Inhalation 
Hazard'', as required in Sec. 172.203(m) of this subchapter;
    (ii) The material must be packaged in accordance with the 
requirements of this subchapter; and
    (iii) The package must be marked in accordance with Sec. 172.313 of 
this subchapter and labeled and placarded with ``POISON'' or ``POISON 
GAS'', as appropriate, in accordance with subparts E and F, 
respectively, of part 172 of this subchapter.
    (9) Class 7 materials must conform to the provisions of paragraph 
(d) of this section.
    (10) For a hazardous waste, as defined in this subchapter--
    (i) The word ``Waste'' must precede the proper shipping name on 
shipping papers and packages; and
    (ii) The requirements of Sec. 172.205 of this subchapter with 
respect to hazardous waste manifests are applicable.
    (11) A hazardous substance as defined in this subchapter must 
conform to the requirements of Secs. 172.203(c) and 172.324 of this 
subchapter.

[[Page 90]]

    (12) A poisonous material must conform to the requirements of 
Sec. 172.203(m) of this subchapter.
    (13) [Reserved].
    (14) Any ammonium nitrate fertilizer or ammonium nitrate mixed 
fertilizer must not meet the definition and criteria of a Class 1 
(explosive) material.
    (15) Cylinders not manufactured to DOT specifications must conform 
to the requirements of Sec. 173.301(i) and (j) of this subchapter.
    (16) Shipments of hazardous materials under this section must 
conform to the requirements for emergency response information as 
prescribed in subpart G of part 172 of this subchapter.
    (17) An aerosol must meet the definition for ``Aerosol'' in 
Sec. 171.8.
    (18) An oxygen generator (chemical) must be classed, approved, and 
described in accordance with the requirements of this subchapter.
    (c) Use of IMDG Code in port areas. Section 171.2 notwithstanding, a 
hazardous material (other than Division 1.1 or 1.2 or Class 7) being 
imported into or exported from the United States or passing through the 
United States in the course of being shipped between places outside the 
United States may be offered and accepted for transportation and 
transported by motor vehicle within a single port area (including 
contiguous harbors) when packaged, marked, classed, labeled, stowed and 
segregated in accordance with the IMDG Code, if the hazardous material 
is offered and accepted in accordance with the requirements of subparts 
C and F of part 172 of this subchapter pertaining to shipping papers and 
placarding and otherwise conforms to the applicable requirements of part 
176 of this subchapter. The requirement in Sec. 172.201(d) of this 
subchapter for an emergency telephone number does not apply to shipments 
made in accordance with the IMDG Code if the hazardous material:
    (1) Is not offloaded from the vessel;
    (2) Is offloaded between ocean vessels at a U.S. port facility 
without being transported by public highway.
    (d) Use of IAEA regulations for Class 7 (radioactive) materials. 
Class 7 (radioactive) materials being imported into, or exported from, 
the United States, or passing through the United States in the course of 
being shipped between places outside the United States, may be offered 
and accepted for transportation when packaged, marked, labeled, and 
otherwise prepared for shipment in accordance with IAEA ``Regulations 
for the Safe Transport of Radioactive Materials, Safety Series No. 6,'' 
if:
    (1) Highway route controlled quantities (see Sec. 173.403 of this 
subchapter) are shipped in accordance with Secs. 172.203(d)(4), 172.507 
and 173.22(c) of this subchapter;
    (2) For fissile materials and Type B packages, the competent 
authority certification and any necessary revalidation is obtained from 
the appropriate competent authorities as specified in Secs. 173.471, 
173.472 and 173.473 of this subchapter and all requirements of the 
certificates and revalidations are met;
    (3) Type A package contents are limited in accordance with 
Sec. 173.431 of this subchapter;
    (4) The country of origin for the shipment has adopted the IAEA 
``Regulations for the Safe Transport of Radioactive Materials, Safety 
Series No. 6'';
    (5) The requirements of Secs. 173.448(e), 173.448(f), and 
173.448(g)(3) of this subchapter are fulfilled, when applicable; and
    (6) Shipments comply with the requirements for emergency response 
information prescribed in Subpart G of Part 172 of this subchapter.
[Amdt. 171-111, 55 FR 52472, Dec. 21, 1990]

    Editorial Note: For Federal Register citations affecting 
Sec. 171.12, see the List of CFR Sections Affected in the Finding Aids 
section of this volume.

    Effective Date Note: By Amdt. 171-151, 62 FR 1227, Jan. 8, 1997, in 
Sec. 171.12(b)(8)(iii), the words ``with `POISON' '' were replaced with 
the words ``with `POISON INHALATION HAZARD' '', effective October 1, 
1997. At 62 FR 39398, July 22, 1997 the effective date was delayed until 
October 1, 1998.



Sec. 171.12a  Canadian shipments and packagings.

    (a) Scope and applicability. This section sets forth provisions for 
the transportation by rail or highway of shipments of hazardous 
materials which

[[Page 91]]

conform to the regulations of the Government of Canada but which may 
differ from the requirements of this subchapter with regard to hazard 
communication, classification or packaging. The provisions apply only to 
shipments which originate in Canada and either terminate in the U.S. or 
transit the U.S. to a Canadian or foreign destination, and to the return 
to Canada of empty bulk packages containing residues of hazardous 
materials which originally were imported into the U.S. Reciprocal 
provisions, applicable to exports from the U.S., appear in the 
regulations of the Government of Canada.
    (b) Conditions and limitations. Notwithstanding the requirements of 
parts 172, 173, and 178 of this subchapter, and subject to the 
limitations of paragraph (a) of this section, a hazardous material that 
is classed, marked, labeled, placarded, described on a shipping paper, 
and packaged in accordance with the Transportion of Dangerous Goods 
(TDG) Regulations issued by the Government of Canada may be offered for 
transportation and transported to or through the United States by motor 
vehicle or rail car. Copies of the TDG Regulations may be obtained from 
the Canadian Government Publishing Centre, Ottawa, Ontario K1A 059; 
Telephone (819) 956-4800. The following conditions and limitations 
apply:
    (1) A number of materials listed in the TDG Regulations may not be 
subject to the requirements of this subchapter. The provisions of this 
subchapter do not apply to materials listed in the TDG Regulations which 
are not designated as hazardous materials under this subchapter. These 
materials may, however, be transported in the U.S. when described, 
marked and labeled in accordance with the TDG Regulations.
    (2) A material designated as a hazardous material under this 
subchapter which is not subject to the requirements of the TDG 
Regulations may not be transported under the provisions of this section.
    (3) A forbidden material or package according to Sec. 173.21 of this 
subchapter or Column 3 of the Sec. 172.101 table may not be transported 
under the provisions of this section.
    (4) A Class 1 material must be classed and approved under the 
procedures in subpart C of part 173 of this subchapter, and packages of 
Class 1 materials must be marked in accordance with Sec. 172.320 of this 
subchapter.
    (5) When a hazardous material, which is a material poisonous by 
inhalation under the provisions of this subchapter (see Sec. 171.8 of 
this subchapter), is subject to the requirements of the TDG 
Regulations--
    (i) The shipping description must include the words `Toxic 
Inhalation Hazard' or `Poison Inhalation Hazard' or ``Inhalation 
Hazard'', as required in Sec. 172.203(m) of this subchapter;
    (ii) The material must be packaged in accordance with the 
requirements of this subchapter; and
    (iii) The package must be marked in accordance with Sec. 172.313 of 
this subchapter. Except for a package containing anhydrous ammonia, the 
package must be labeled and placarded with ``POISON'' or ``POISON GAS'', 
as appropriate, in accordance with subparts E and F, respectively, of 
part 172 of this subchapter. For shipments of anhydrous ammonia, the 
shipping paper must contain an indication that the markings, labels and 
placards have been applied in conformance with the TDG Regulations and 
this paragraph (b)(5).
    (6) Required shipping descriptions and package markings must be in 
English. Abbreviations may not be used unless specifically authorized by 
this subchapter. Identification numbers must be preceded by ``UN'' or 
``NA''. The use of an identification number preceded by ``PIN'' is not 
authorized.
    (7) Shipments must conform to the requirements for emergency 
response information in subpart G of part 172 of this subchapter.
    (8) A Class 7 material must conform to the provisions of 
Sec. 171.12(d) of this subchapter;
    (9) For a hazardous waste as defined in this subchapter--
    (i) The word ``Waste'' must precede the proper shipping name on 
shipping papers and packages; and
    (ii) The requirements of Sec. 172.205 of this subchapter with 
respect to hazardous waste manifests are applicable;

[[Page 92]]

    (10) A hazardous substance as defined in this subchapter must 
conform to the requirements of Secs. 172.203(c) and 172.324 of this 
subchapter; and
    (11) A poisonous material must conform to the requirements of 
Sec. 172.203(m) of this subchapter.
    (12) [Reserved].
    (13) When the provisions of this subchapter require that a DOT 
specification or UN standard packaging must be used for a hazardous 
material, a packaging authorized by the TDG Regulations may be used only 
if it corresponds to the DOT specification or UN packaging authorized by 
this subchapter. Cylinders not manufactured to DOT specifications must 
conform to the requirements of Sec. 173.301(i) and (j) of this 
subchapter.
    (14) Any ammonium nitrate fertilizer or ammonium nitrate mixed 
fertilizer must not meet the definition and criteria of a Class 1 
(explosive) material.
    (15) Transportation of marine pollutants, as defined in Sec. 171.8 
of this subchapter, must conform to the requirements of Secs. 172.203(l) 
and 172.322 of this subchapter.
    (16) An aerosol must meet the definition for ``Aerosol'' in 
Sec. 171.8.
    (17) An oxygen generator (chemical) must be classed, approved, and 
described in accordance with the requirements of this subchapter.
[Amdt. 171-111, 55 FR 52473, Dec. 21, 1990, as amended at 56 FR 66160, 
Dec. 20, 1991; 57 FR 45453, Oct. 1, 1992; Amdt. 171-116, 57 FR 52935, 
Nov. 5, 1992; Amdt. 171-153, 62 FR 24700, May 6, 1997; 62 FR 30770, June 
5, 1997]

    Effective Date Note: By Amdt. 171-151, 62 FR 1227, Jan. 8, 1997, in 
Sec. 171.12(b)(5)(iii), the words ``with `POISON' '' were replaced with 
the words ``with `POISON INHALATION HAZARD' '', effective October 1, 
1997. At 62 FR 39398, July 22, 1997 the effective date was delayed until 
October 1, 1998.



Sec. 171.14  Transitional provisions for implementing requirements based on the UN Recommendations.

    General. The purpose of the provisions of this section is to provide 
an orderly transition to new requirements based on the UN 
Recommendations, so as to minimize any burdens associated with them. 
Subsequent final rules may implement different time requirements than 
the transitional provisions in this section. When the effective date 
section or regulatory text of a final rule imposes a compliance date 
earlier or later than that which would be required under this section, 
the transition date in this section does not apply.
    (a) Previously filled packages--(1) Packages filled prior to October 
1, 1991. Notwithstanding the marking and labeling provisions of subparts 
D and E, respectively, of part 172, and the packaging provisions of part 
173 and subpart B of Part 172 of this subchapter, a package may be 
offered for transportation and transported prior to October 1, 2001, if 
it--
    (i) Conforms to the old requirements of this subchapter in effect on 
September 30, 1991;
    (ii) Was filled with a hazardous material prior to October 1, 1991;
    (iii) Is marked ``Inhalation Hazard'' if appropriate, in accordance 
with Sec. 172.313 of this subchapter or Special Provision 13, as 
assigned in the Sec. 172.101 Table; and
    (iv) Is not emptied and refilled on or after October 1, 1991.
    (2) Non-bulk packages filled prior to October 1, 1996. 
Notwithstanding the packaging provisions of subpart B of Part 172 and 
the packaging provisions of part 173 of this subchapter with respect to 
UN standard packagings, a non-bulk package other than a cylinder may be 
offered for transportation and transported domestically prior to October 
1, 1999, if it--
    (i) Conforms to the requirements of this subchapter in effect on 
September 30, 1996;
    (ii) Was filled with a hazardous material prior to October 1, 1996; 
and
    (iii) Is not emptied and refilled on or after October 1, 1996.
    (b) Transitional placarding provisions. Until October 1, 2001, 
placards which conform to specifications for placards in effect on 
September 30, 1991 or placards specified in the December 21, 1990 final 
rule may be used, for highway transportation only, in place of the 
placards specified in Subpart F of Part 172 of this subchapter, in 
accordance with the following table:

[[Page 93]]



                       Placard Substitution Table                       
------------------------------------------------------------------------
                                    Current placard     Old (Sept. 30,  
 Hazard class or division number         name         1991) placard name
------------------------------------------------------------------------
Division 1.1....................  Explosives 1.1....  Explosives A.     
Division 1.2....................  Explosives 1.2....  Explosives A.     
Division 1.3....................  Explosives 1.3....  Explosives B.     
Division 1.4....................  Explosives 1.4....  Dangerous.        
Division 1.5....................  Explosives 1.5....  Blasting agents.  
Division 1.6....................  Explosives 1.6....  Dangerous.        
Division 2.1....................  Flammable gas.....  Flammable gas.    
Division 2.2....................  Nonflammable gas..  Nonflammable gas. 
Division 2.3....................  Poison gas........  Poison gas.       
Class 3.........................  Flammable.........  Flammable.        
Combustible liquid..............  Combustible.......  Combustible.      
Division 4.1....................  Flammable solid...  Flammable solid.  
Division 4.2....................  Spontaneously       Flammable solid.  
                                   combustible.                         
Division 4.3....................  Dangerous when wet  Flammable solid W.
Division 5.1....................  Oxidizer..........  Oxidizer.         
Division 5.2....................  Organic peroxide..  Organic peroxide. 
Division 6.1, PG I and II.......  Poison............  Poison.           
Division 6.1, PG III............  Keep away from      (none required).  
                                   food.                                
Class 7.........................  Radioactive.......  Radioactive.      
Class 8.........................  Corrosive.........  Corrosive.        
Class 9.........................  Class 9...........  (none required).  
------------------------------------------------------------------------

    (c) Non-specification fiber drums. (1) A non-specification fiber 
drum with a removable head is authorized for a liquid hazardous material 
in Packing Group III that is not poisonous by inhalation for which the 
packaging was authorized under the requirements of Part 172 or Part 173 
of this subchapter in effect on September 30, 1991. This authorization 
expires on the later of September 30, 1997, or the date on which funds 
are authorized to be appropriated to carry out chapter 51 of title 49, 
United States Code (related to transportation of hazardous materials), 
for fiscal years beginning after September 30, 1997. Information 
concerning this funding authorization date may be obtained by contacting 
the Office of the Associate Administrator for Hazardous Materials 
Safety.
    (2) A non-specification fiber drum with a removable head authorized 
by paragraph (c)(1) of this section may be offered for transportation 
and transported domestically prior to October 1, 1999, if it--
    (i) Was filled with an authorized hazardous material prior to the 
expiration of the authority in paragraph (c)(1) of this section; and
    (ii) Is not emptied and refilled after the expiration of the 
authority in paragraph (c)(1) of this section.
    (d) A rule published in the Federal Register on May 6, 1997, 
effective October 1, 1997, resulted in revisions to this subchapter. 
During the transition period provided in paragraph (d)(1) of this 
section, a person may elect to comply with either the applicable 
requirements of this subchapter in effect on September 30, 1997, or the 
requirements of this subchapter in the May 6, 1997 final rule, in effect 
on October 1, 1997.
    (1) Transition date. On October 1, 1998, all applicable regulatory 
requirements adopted in the May 6, 1997 final rule in effect on October 
1, 1997 must be met.
    (2) Intermixing old and new requirements. Prior to the transition 
date in paragraph (d)(1) of this section, it is recommended that the 
hazard communication requirements be consistent where practicable, i.e., 
marking, labeling, placarding, and shipping paper descriptions should 
conform to either the old requirements of this subchapter in effect on 
September 30, 1997, or new requirements of this subchapter in the May 6, 
1997 rule, in effect on October 1, 1997, without intermixing of 
communication elements. However, intermixing is permitted, during the 
applicable transition period, for packaging, hazard communication, and 
handling provisions, as follows:
    (i) If either shipping names or identification numbers are 
identical, a shipping paper may display the old shipping description 
even if the package is marked and labeled under the new shipping 
description;
    (ii) If either shipping names or identification numbers are 
identical, a shipping paper may display the new shipping description 
even if the package is marked and labeled under the old shipping 
description; and
    (iii) Either old or new placards may be used regardless of whether 
old or new shipping descriptions and package markings are used.
    (e) Notwithstanding Secs. 172.416 and 172.429 of this subchapter 
specified in the July 22, 1997 final rule, when labels are required by 
subpart E of part 172 of this subchapter to be affixed to a material 
poisonous by inhalation, labels that conform to the requirements of this 
subchapter in effect on September

[[Page 94]]

30, 1997, may be used on packagings offered for transportation or 
transported until October 1, 1999.
[Amdt. 171-131, 59 FR 67406, Dec. 29, 1994, as amended by Amdt. 171-132, 
60 FR 26799, 26800, May 18, 1995; Amdt. 171-138, 60 FR 48786, Sept. 20, 
1995; Amdt. 171-139, 61 FR 7958, Feb. 29, 1996; Amdt. 171-150, 62 FR 
1227, Jan. 8, 1997; Amdt 171-153, 62 FR 24700, May 6, 1997; 62 FR 29676, 
June 2, 1997; 62 FR 39404, July 22, 1997]

    Effective Date Note: At 62 FR 39404, July 22, 1997, in Sec. 171.14, 
the section heading, introductory text and paragraph (b) were revised, 
and a new paragraph (e) was added, effective October 1, 1998. For the 
convenience of the user, the revised text is set forth as follows:

Sec. 171.14  Transitional provisions for implementing certain 
          requirements.

    General. The purpose of the provisions of this section is to provide 
an orderly transition to certain new requirements so as to minimize any 
burdens associated with them.

                                * * * * *

    (b) Transitional placarding provisions. Until October 1, 2001, 
placards which conform to specifications for placards in effect on 
September 30, 1991, or placards specified in the December 21, 1990 final 
rule may be used, for highway transportation only, in place of the 
placards specified in subpart F of part 172 of this subchapter, in 
accordance with the following table:

                       Placard Substitution Table                       
------------------------------------------------------------------------
                               Current placard    Old (Sept. 30, 1991)  
 Hazard class or division No.        name             placard name      
------------------------------------------------------------------------
Division 1.1.................  Explosives 1.1.  Explosives A.           
Division 1.2.................  Explosives 1.2.  Explosives A.           
Division 1.3.................  Explosives 1.3.  Explosives B.           
Division 1.4.................  Explosives 1.4.  Dangerous.              
Division 1.5.................  Explosives 1.5.  Blasting agents.        
Division 1.6.................  Explosives 1.6.  Dangerous.              
Division 2.1.................  Flammable gas..  Flammable gas.          
Division 2.2.................  Nonflammable     Nonflammable gas.       
                                gas.                                    
Division 2.3\1\..............  Poison gas.....  Poison gas.             
Class 3......................  Flammable......  Flammable.              
Combustible liquid...........  Combustible....  Combustible.            
Division 4.1.................  Flammable solid  Flammable solid.        
Division 4.2.................  Spontaneously    Flammable solid.        
                                combustible.                            
Division 4.3.................  Dangerous when   Flammable solid W.      
                                wet.                                    
Division 5.1.................  Oxidizer.......  Oxidizer.               
Division 5.2.................  Organic          Organic peroxide.       
                                peroxide.                               
Division 6.1, (inhalation      Poison           Poison.                 
 hazard, Zone A or B)\1\.       inhalation                              
                                hazard.                                 
Division 6.1, PG I and II      Posion.........  Poison.                 
 (other than Zone A or B                                                
 inhalation hazard).                                                    
Division 6.1, PG III.........  Keep away from   (none required).        
                                food.                                   
Class 7......................  Radioactive....  Radioactive.            
Class 8......................  Corrosive......  Corrosive.              
Class 9......................  Class 9........  (none required).        
------------------------------------------------------------------------
\1\ For materials poisonous by inhalation, by all modes of              
  transportation, until October 1, 2001, placards may be used that      
  conform to specifications for placards (1) in effect on September 30, 
  1991, (2) specified in the December 21, 1990 final rule, or (3)       
  specified in the July 22, 1997 final rule.                            

                                * * * * *



Sec. 171.15  Immediate notice of certain hazardous materials incidents.

    (a) At the earliest practicable moment, each carrier who transports 
hazardous materials (including hazardous wastes) shall give notice in 
accordance with paragraph (b) of this section after each incident that 
occurs during the course of transportation (including loading, unloading 
and temporary storage) in which--
    (1) As a direct result of hazardous materials--
    (i) A person is killed; or
    (ii) A person receives injuries requiring his or her 
hospitalization; or
    (iii) Estimated carrier or other property damage exceeds $50,000; or
    (iv) An evacuation of the general public occurs lasting one or more 
hours; or
    (v) One or more major transportation arteries or facilities are 
closed or shut down for one hour or more; or
    (vi) The operational flight pattern or routine of an aircraft is 
altered; or

[[Page 95]]

    (2) Fire, breakage, spillage, or suspected radioactive contamination 
occurs involving shipment of radioactive material (see also 
Secs. 174.45, 176.48, and 177.807 of this subchapter); or
    (3) Fire, breakage, spillage, or suspected contamination occurs 
involving shipment of infectious substances (etiologic agents); or
    (4) There has been a release of a marine pollutant in a quantity 
exceeding 450 L (119 gallons) for liquids or 400 kg (882 pounds) for 
solids; or
    (5) A situation exists of such a nature (e.g., a continuing danger 
to life exists at the scene of the incident) that, in the judgment of 
the carrier, it should be reported to the Department even though it does 
not meet the criteria of paragraph (a) (1), (2) or (3) of this section.
    (b) Except for transportation by aircraft, each notice required by 
paragraph (a) of this section shall be given to the Department by 
telephone (toll-free) on 800-424-8802. Notice involving shipments 
transported by aircraft must be given to the nearest FAA Civil Aviation 
Security Office by telephone at the earliest practical moment after each 
incident in place of the notice to the Department. Notice involving 
etiologic agents may be given to the Director, Centers for Disease 
Control, U.S. Public Health Service, Atlanta, Ga. (800) 232-0124, in 
place of the notice to the Department or (toll call) on 202-267-2675. 
Each notice must include the following information:
    (1) Name of reporter.
    (2) Name and address of carrier represented by reporter.
    (3) Phone number where reporter can be contacted.
    (4) Date, time, and location of incident.
    (5) The extent of injuries, if any.
    (6) Classification, name, and quantity of hazardous materials 
involved, if such information is available.
    (7) Type of incident and nature of hazardous material involvement 
and whether a continuing danger to life exists at the scene.
    (c) Each carrier making a report under this section shall also make 
the report required by Sec. 171.16.

    Note: Under 40 CFR 302.6 EPA requires persons in charge of 
facilities (including transport vehicles, vessels and aircraft) to 
report any release of a hazardous substance in a quantity equal to or 
greater than its reportable quantity, as soon as that person has 
knowledge of the release, to the U.S. Coast Guard National Response 
Center at (toll free) 800-424-8802 or (toll) 202-267-2675.

[Amdt. 171-7, 35 FR 16837, Oct. 3, 1970]

    Editorial Note: For Federal Register citations affecting 
Sec. 171.15, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 171.16  Detailed hazardous materials incident reports.

    (a) Each carrier who transports hazardous materials shall report in 
writing, in duplicate, on DOT Form F 5800.1 (Rev. 6/89) to the 
Department within 30 days of the date of discovery, each incident that 
occurs during the course of transportation (including loading, 
unloading, and temporary storage) in which any of the circumstances set 
forth in Sec. 171.15(a) occurs or there has been an unintentional 
release of hazardous materials from a package (including a tank) or any 
quantity of hazardous waste has been discharged during transportation. 
If a report pertains to a hazardous waste discharge:
    (1) A copy of the hazardous waste manifest for the waste must be 
attached to the report; and
    (2) An estimate of the quantity of the waste removed from the scene, 
the name and address of the facility to which it was taken, and the 
manner of disposition of any removed waste must be entered in Section IX 
of the report form (Form F 5800.1) (Rev. 6/89).
    (b) Each carrier making a report under this section shall send the 
report to the Information Systems Manager, DHM-63, Research and Special 
Programs Administration, Department of Transportation, Washington, DC 
20590-0001; and, for incidents involving transportation by aircraft, a 
copy of the report shall also be sent to the FAA Civil Aviation Security 
Office nearest the location of the incident. A copy of the report shall 
be retained for a period of two years, at the carrier's principal place 
of business, or at other places as authorized and approved in writing by 
an agency of the Department of Transportation.

[[Page 96]]

    (c) Except as provided in paragraph (d) of this section, the 
requirements of paragraph (a) of this section do not apply to incidents 
involving the unintentional release of a hazardous material--
    (1) Transported under one of the following proper shipping names:
    (i) Consumer commodity.
    (ii) Battery, electric storage, wet, filled with acid or alkali.
    (iii) Paint and paint related material when shipped in a packaging 
of five gallons or less.
    (2) Prepared and transported as a limited quantity shipment in 
accordance with this subchapter.
    (d) The exceptions to incident reporting provided in paragraph (c) 
of this section do not apply to:
    (1) Incidents required to be reported under Sec. 171.15(a);
    (2) Incidents involving transportation aboard aircraft;
    (3) Except for consumer commodities, materials in Packing Group I; 
or
    (4) Incidents involving the transportation of hazardous waste.

    Note: A guideline document for assisting in the completion of DOT 
Form F 5800.1 (Rev. 6/89) may be obtained from the Office of Hazardous 
Materials Transportation, DHM-51, U.S. Department of Transportation, 
Washington, DC 20590-0001.

[Amdt. 171-7, 35 FR 16837, Oct. 3, 1970, as amended by Amdt. 171-56, 45 
FR 73683, Nov. 6, 1980; Amdt. No. 171-65, 47 FR 24584, June 7, 1982; 
Amdt. 171-72, 48 FR 17095, Apr. 21, 1983; Amdt. 171-101, 54 FR 25813, 
June 19, 1989; Amdt. 171-109, 55 FR 39978, Oct. 1, 1990; Amdt. 171-140, 
61 FR 18932, Apr. 29, 1996; Amdt. 171-145, 61 FR 27172, May 30, 1996]



Sec. 171.17  [Reserved]



Sec. 171.18  Continuation of effectiveness of existing Bureau of Explosives registrations.

    A registration filed with the Bureau of Explosives in compliance 
with a requirement of the subchapter, which is valid at the time that 
registration function is assumed by RSPA remains valid to the same 
extent as if it had been filed originally with RSPA.
[Amdt. 171-50, 44 FR 55577, Sept. 27, 1979]



Sec. 171.19  Approvals or authorizations issued by the Bureau of Explosives.

    Unless otherwise specifically restricted by other requirements of 
this subchapter, any written approval or authorization issued by the 
Bureau of Explosives that is valid at the time the Bureau of Explosives 
authority to issue that approval or authorization is withdrawn or 
assumed by the Associate Administrator for Hazardous Materials Safety 
and which is available for inspection by representatives of the 
Department of Transportation, will be considered as having the same 
validity as if issued by the Associate Administrator for Hazardous 
Materials Safety, and remains valid under the conditions and for the 
period established by the Bureau of Explosives.
[Amdt. 171-70, 48 FR 2655, Jan. 20, 1983, as amended by Amdt. 171-111, 
56 FR 66162, Dec. 20, 1991]



Sec. 171.20  Submission of Examination Reports.

    (a) When it is required in this subchapter that the issuance of an 
approval by the Associate Administrator for Hazardous Materials Safety 
be based on an examination by the Bureau of Explosives (or any other 
test facility recognized by RSPA), it is the responsibility of the 
applicant to submit the results of the examination to the Associate 
Administrator for Hazardous Materials Safety.
    (b) Applications for approval submitted under paragraph (a) of this 
section, must be submitted to the Associate Administrator for Hazardous 
Materials Safety, Research and Special Programs Administration, 
Washington, DC 20590-0001.
    (c) Any applicant for an approval aggrieved by an action taken by 
the Associate Administrator for Hazardous Materials Safety, under this 
subpart may file an appeal with the Administrator, RSPA within 30 days 
of service of notification of a denial.
[Amdt. 171-54, 45 FR 32692, May 19, 1980, as amended by Amdt. 171-66, 47 
FR 43064, Sept. 30, 1982; Amdt. 171-109, 55 FR 39978, Oct. 1, 1990; 
Amdt. 171-111, 56 FR 66162, Dec. 20, 1991]

[[Page 97]]



Sec. 171.21  Assistance in investigations and special studies.

    (a) A carrier who is responsible for reporting an incident under the 
provisions of Sec. 171.16 shall make all records and information 
pertaining to the incident available to an authorized representative or 
special agent of the Department of Transportation upon request. The 
carrier shall give an authorized representative or special agent of the 
Department of Transportation reasonable assistance in the investigation 
of the incident.
    (b) If the Department of Transportation makes an inquiry to a 
carrier of hazardous materials in connection with a study of incidents, 
the carrier shall--
    (1) Respond to the inquiry within 30 days after its receipt or 
within such other time as the inquiry may specify; and
    (2) Provide full, true, and correct answers to any questions 
included in the inquiry.
[Amdt. 171-101, 54 FR 25813, June 19, 1989]



PART 172--HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, AND TRAINING REQUIREMENTS--Table of Contents




                           Subpart A--General

Sec.
172.1  Purpose and scope.
172.3  Applicability.

     Subpart B--Table of Hazardous Materials and Special Provisions

172.101  Purpose and use of hazardous materials table.
172.102  Special provisions.

                       Subpart C--Shipping Papers

172.200  Applicability.
172.201  General entries.
172.202  Description of hazardous material on shipping papers.
172.203  Additional description requirements.
172.204  Shipper's certification.
172.205  Hazardous waste manifest.

                           Subpart D--Marking

172.300  Applicability.
172.301  General marking requirements for non-bulk packagings.
172.302  General marking requirements for bulk packagings.
172.303  Prohibited marking.
172.304  Marking requirements.
172.306  [Reserved]
172.308  Authorized abbreviations.
172.310  Class 7 (radioactive) materials.
172.312  Liquid hazardous materials in non-bulk packagings.
172.313  Poisonous hazardous materials.
172.316  Packagings containing materials classed as ORM-D.
172.320  Explosive hazardous materials.
172.322  Marine pollutants.
172.324  Hazardous substances in non-bulk packagings.
172.325  Elevated temperature materials.
172.326  Portable tanks.
172.328  Cargo tanks.
172.330  Tank cars and multi-unit tank car tanks.
172.331  Bulk packagings other than portable tanks, cargo tanks, tank 
          cars and multi-unit tank car tanks.
172.332  Identification number markings.
172.334  Identification numbers; prohibited display.
172.336  Identification numbers; special provisions.
172.338  Replacement of identification numbers.

                           Subpart E--Labeling

172.400  General labeling requirements.
172.400a  Exceptions from labeling.
172.401  Prohibited labeling.
172.402  Additional labeling requirements.
172.403  Class 7 (radioactive) material.
172.404  Labels for mixed and consolidated packaging.
172.405  Authorized label modifications. 0
172.406  Placement of labels.
172.407  Label specifications.
172.411  EXPLOSIVE 1.1, 1.2, 1.3, 1.4, 1.5 and 1.6 labels, and EXPLOSIVE 
          Subsidiary label.
172.415  NON-FLAMMABLE GAS label.
172.416  POISON GAS label.
172.417  FLAMMABLE GAS label.
172.419  FLAMMABLE LIQUID label.
172.420  FLAMMABLE SOLID label.
172.422  SPONTANEOUSLY COMBUSTIBLE label.
172.423  DANGEROUS WHEN WET label.
172.426  OXIDIZER label.
172.427  ORGANIC PEROXIDE label.
172.429  POISON INHALATION HAZARD label.
172.430  POISON label.
172.431  KEEP AWAY FROM FOOD label.
172.432  INFECTIOUS SUBSTANCE label.
172.436  RADIOACTIVE WHITE-I label.
172.438  RADIOACTIVE YELLOW-II label.
172.440  RADIOACTIVE YELLOW-III label.
172.442  CORROSIVE label.
172.444  [Reserved]

[[Page 98]]

172.446  CLASS 9 label.
172.448  CARGO AIRCRAFT ONLY label.
172.450  EMPTY label.

                          Subpart F--Placarding

172.500  Applicability of placarding requirements.
172.502  Prohibited and permissive placarding.
172.503  Identification number display on placards.
172.504  General placarding requirements.
172.505  Placarding for subsidiary hazards.
172.506  Providing and affixing placards: Highway.
172.507  Special placarding provisions: Highway.
172.508  Placarding and affixing placarding: Rail.
172.510  Special placarding provisions: Rail.
172.512  Freight containers and aircraft unit load devices.
172.514  Bulk packagings.
172.516  Visibility and display of placards.
172.519  General specifications for placards.
172.521  DANGEROUS placard.
172.522  EXPLOSIVES 1.1, EXPLOSIVES 1.2 and EXPLOSIVES 1.3 placards.
172.523  EXPLOSIVES 1.4 placard.
172.524  EXPLOSIVES 1.5 placard.
172.525  EXPLOSIVES 1.6 placard.
172.526  [Reserved]
172.527  Background requirements for certain placards.
172.528  NON-FLAMMABLE GAS placard.
172.530  OXYGEN placard.
172.532  FLAMMABLE GAS placard.
172.536  [Reserved]
172.540  POISON GAS placard.
172.542  FLAMMABLE placard.
172.544  COMBUSTIBLE placard.
172.546  FLAMMABLE SOLID placard.
172.547  SPONTANEOUSLY COMBUSTIBLE placard.
172.548  DANGEROUS WHEN WET placard.
172.550  OXIDIZER placard.
172.552  ORGANIC PEROXIDE placard.
172.553  KEEP AWAY FROM FOOD placard.
172.554  POISON placard.
172.555  POISON INHALATION HAZARD placard.
172.556  RADIOACTIVE placard.
172.558  CORROSIVE placard.
172.560  CLASS 9 placard.

                Subpart G--Emergency Response Information

172.600  Applicability and general requirements.
172.602  Emergency response information.
172.604  Emergency response telephone number.
172.606  Carrier information contact.

                           Subpart H--Training

172.700  Purpose and scope.
172.701  Federal-State relationship.
172.702  Applicability and responsibility for training and testing.
172.704  Training requirements.

Appendix A to Part 172--Office of Hazardous Materials Transportation 
          Color Tolerance Charts and Tables
Appendix B to Part 172--Trefoil Symbol
Appendix C to Part 172--Dimensional Specifications for Recommended 
          Placard Holder

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.

    Source:  Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, unless otherwise 
noted.



                           Subpart A--General



Sec. 172.1  Purpose and scope.

    This part lists and classifies those materials which the Department 
of Transportation has designated as hazardous materials for purposes of 
transportation and prescribes the requirements for shipping papers, 
package marking, labeling, and transport vehicle placarding applicable 
to the shipment and transportation of those hazardous materials.
[Amdt. 172-29, 41 FR 15997, Apr. 15, 1976]



Sec. 172.3  Applicability.

    (a) This part applies to--(1) Each person who offers a hazardous 
material for transportation, and
    (2) Each carrier by air, highway, rail, or water who transports a 
hazardous material.
    (b) When a person, other than one of those provided for in paragraph 
(a) of this section, performs a packaging labeling or marking function 
required by this part, that person shall perform the function in 
accordance with this part.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-32, 
41 FR 38179, Sept. 9, 1976]



     Subpart B--Table of Hazardous Materials and Special Provisions



Sec. 172.101  Purpose and use of hazardous materials table.

    (a) The Hazardous Materials Table (Table) in this section designates 
the materials listed therein as hazardous

[[Page 99]]

materials for the purpose of transportation of those materials. For each 
listed material, the Table identifies the hazard class or specifies that 
the material is forbidden in transportation, and gives the proper 
shipping name or directs the user to the preferred proper shipping name. 
In addition, the Table specifies or references requirements in this 
subchapter pertaining to labeling, packaging, quantity limits aboard 
aircraft and stowage of hazardous materials aboard vessels.
    (b) Column 1: Symbols. Column 1 of the Table contains five symbols 
(``+'', ``A'', ``D'', ``I'', and ``W''), as follows:
    (1) The plus (+) fixes the proper shipping name, hazard class and 
packing group for that entry without regard to whether the material 
meets the definition of that class or packing group or meets any other 
hazard class definition. An appropriate alternate proper shipping name 
and hazard class may be authorized by the Associate Administrator for 
Hazardous Materials Safety.
    (2) The letter ``A'' restricts the application of requirements of 
this subchapter to materials offered or intended for transportation by 
aircraft, unless the material is a hazardous substance or a hazardous 
waste.
    (3) The letter ``D'' identifies proper shipping names which are 
appropriate for describing materials for domestic transportation but may 
be inappropriate for international transportation under the provisions 
of international regulations (e.g., IMO, ICAO). An alternate proper 
shipping name may be selected when either domestic or international 
transportation is involved.
    (4) The letter ``I'' identifies proper shipping names which are 
appropriate for describing materials in international transportation. An 
alternate proper shipping name may be selected when only domestic 
transportation is involved.
    (5) The letter ``W'' restricts the application of requirements of 
this subchapter to materials offered or intended for transportation by 
vessel, unless the material is a hazardous substance or a hazardous 
waste.
    (c) Column 2: Hazardous materials descriptions and proper shipping 
names. Column 2 lists the hazardous materials descriptions and proper 
shipping names of materials designated as hazardous materials. 
Modification of a proper shipping name may otherwise be required or 
authorized by this section. Proper shipping names are limited to those 
shown in Roman type (not italics).
    (1) Proper shipping names may be used in the singular or plural and 
in either capital or lower case letters. Words may be alternatively 
spelled in the same manner as they appear in the ICAO Technical 
Instructions or the IMDG Code. For example ``aluminum'' may be spelled 
``aluminium'' and ``sulfur'' may be spelled ``sulphur''. However, the 
word ``inflammable'' may not be used in place of the word ``flammable''.
    (2) Punctuation marks and words in italics are not part of the 
proper shipping name, but may be used in addition to the proper shipping 
name. The word ``or'' in italics indicates that terms in the sequence 
may be used as the proper shipping name, as appropriate.
    (3) The word ``poison'' or ``poisonous'' may be used interchangeably 
with the word ``toxic'' when only domestic transportation is involved. 
The abbreviation ``n.o.i.'' or ``n.o.i.b.n.'' may be used 
interchangeably with ``n.o.s.''.
    (4) Except for hazardous wastes, when qualifying words are used as 
part of the proper shipping name, their sequence in the package markings 
and shipping paper description is optional. However, the entry in the 
Table reflects the preferred sequence.
    (5) When one entry references another entry by use of the word 
``see'', if both names are in Roman type, either name may be used as the 
proper shipping name (e.g., Ethyl alcohol, see Ethanol).
    (6) When a proper shipping name includes a concentration range as 
part of the shipping description, the actual concentration, if it is 
within the range stated, may be used in place of the concentration 
range. For example, an aqueous solution of hydrogen peroxide containing 
30 percent peroxide may be described as ``Hydrogen peroxide, aqueous 
solution with not less than 20 percent but not more than 40 percent 
hydrogen peroxide'' or ``Hydrogen peroxide, aqueous solution with 30 
percent hydrogen peroxide''.

[[Page 100]]

    (7) Use of the prefix ``mono'' is optional in any shipping name, 
when appropriate. Thus, Iodine monochloride may be used interchangeably 
with Iodine chloride. In ``Glycerol alpha-monochlorohydrin'' the term 
``mono'' is considered a prefix to the term ``chlorohydrin'' and may be 
deleted.
    (8) Hazardous substances. Appendix A to this section lists materials 
which are listed or designated as hazardous substances under section 
101(14) of the Comprehensive Environmental Response, Compensation, and 
Liability Act (CERCLA). Proper shipping names for hazardous substances 
(see Appendix A to this section and Sec. 171.8 of this subchapter) shall 
be determined as follows:
    (i) If the hazardous substance appears in the Table by technical 
name, then the technical name is the proper shipping name.
    (ii) If the hazardous substance does not appear in the Table and is 
not a forbidden material, then an appropriate generic, or ``n.o.s.'', 
shipping name shall be selected corresponding to the hazard class (and 
packing group, if any) of the material as determined by the defining 
criteria of this subchapter (see Secs. 173.2 and 173.2a of this 
subchapter). For example, a hazardous substance which is listed in 
Appendix A but not in the Table and which meets the definition of a 
flammable liquid might be described as ``Flammable liquid, n.o.s.'' or 
other appropriate shipping name corresponding to the flammable liquid 
hazard class.
    (9) Hazardous wastes. If the word ``waste'' is not included in the 
hazardous material description in Column 2 of the Table, the proper 
shipping name for a hazardous waste (as defined in Sec. 171.8 of this 
subchapter), shall include the word ``Waste'' preceding the proper 
shipping name of the material. For example: Waste acetone.
    (10) Mixtures and solutions. (i) A mixture or solution not 
identified specifically by name, comprised of a hazardous material 
identified in the Table by technical name and non-hazardous material, 
shall be described using the proper shipping name of the hazardous 
material and the qualifying word ``mixture'' or ``solution'', as 
appropriate, unless--
    (A) Except as provided in Sec. 172.101(i)(4) the packaging specified 
in Column 8 is inappropriate to the physical state of the material;
    (B) The shipping description indicates that the proper shipping name 
applies only to the pure or technically pure hazardous material;
    (C) The hazard class, packing group, or subsidiary hazard of the 
mixture or solution is different from that specified for the entry;
    (D) There is a significant change in the measures to be taken in 
emergencies;
    (E) The material is identified by special provision in Column 7 of 
the Sec. 172.101 Table as a material poisonous by inhalation; however, 
it no longer meets the definition of poisonous by inhalation or it falls 
within a different hazard zone than that specified in the special 
provision; or
    (F) The material can be appropriately described by a shipping name 
that describes its intended application, such as ``Coating solution'', 
``Extracts, flavoring'' or ``Compound, cleaning liquid''.
    (ii) If one or more of the conditions specified in paragraph 
(c)(10)(i) of this section is satisfied, then a proper shipping name 
shall be selected as prescribed in paragraph (c)(12)(ii) of this 
section.
    (iii) A mixture or solution not identified in the Table specifically 
by name, comprised of two or more hazardous materials in the same hazard 
class, shall be described using an appropriate shipping description 
(e.g., ``Flammable liquid, n.o.s.''). The name that most appropriately 
describes the material shall be used; e.g., an alcohol not listed by its 
technical name in the Table shall be described as ``Alcohol, n.o.s.'' 
rather than ``Flammable liquid, n.o.s.''. Some mixtures may be more 
appropriately described according to their application, such as 
``Coating solution'' or ``Extracts, flavoring liquid'' rather than by an 
n.o.s. entry. Under the provisions of subparts C and D of this part, the 
technical names of at least two components most predominately 
contributing to the hazards of the mixture or solution may be required 
in association with the proper shipping name.

[[Page 101]]

    (11) Except for a material subject to or prohibited by Secs. 173.21, 
173.51, 173.56(d), 173.56(e)(1), 173.124(a)(2)(iii) or 173.128(c) of 
this subchapter, a material for which the hazard class is uncertain and 
must be determined by testing or a material that is a hazardous waste 
may be assigned a tentative shipping name, hazard class, identification 
number, and packing group, based on the shipper's tentative 
determination according to--
    (i) Defining criteria in this subchapter;
    (ii) The hazard precedence prescribed in Sec. 173.2a of this 
subchapter; and
    (iii) The shipper's knowledge of the material.
    (12) Except when the proper shipping name in the Table is preceded 
by a plus (+)--
    (i) If it is specifically determined that a material meets the 
definition of a hazard class, packing group or hazard zone, other than 
the class, packing group or hazard zone shown in association with the 
proper shipping name, or does not meet the defining criteria for a 
subsidiary hazard shown in Column 6 of the Table, the material shall be 
described by an appropriate proper shipping name listed in association 
with the correct hazard class, packing group, hazard zone, or subsidiary 
hazard for the material.
    (ii) Generic or n.o.s. descriptions. If an appropriate technical 
name is not shown in the Table, selection of a proper shipping name 
shall be made from the generic or n.o.s. descriptions corresponding to 
the specific hazard class, packing group, hazard zone, or subsidiary 
hazard, if any, for the material. The name that most appropriately 
describes the material shall be used; e.g., an alcohol not listed by its 
technical name in the Table shall be described as ``Alcohol, n.o.s.'' 
rather than ``Flammable liquid, n.o.s.''. Some mixtures may be more 
appropriately described according to their application, such as 
``Coating solution'' or ``Extracts, flavoring, liquid'', rather than by 
an n.o.s. entry, such as ``Flammable liquid, n.o.s.'' It should be 
noted, however, that an n.o.s. description as a proper shipping name may 
not provide sufficient information for shipping papers and package 
markings. Under the provisions of subparts C and D of this part, the 
technical name of one or more constituents which makes the product a 
hazardous material may be required in association with the proper 
shipping name.
    (iii) Multiple hazard materials. If a material meets the definition 
of more than one hazard class, and is not identified in the Table 
specifically by name (e.g., acetyl chloride), the hazard class of the 
material shall be determined by using the precedence specified in 
Sec. 173.2a of this subchapter, and an appropriate shipping description 
(e.g., ``Flammable liquid, corrosive n.o.s.'') shall be selected as 
described in paragraph (c)(12)(ii) of this section.
    (iv) If it is specifically determined that a material is not a 
forbidden material and does not meet the definition of any hazard class, 
the material is not a hazardous material.
    (13) Self-reactive materials and organic peroxides. A generic proper 
shipping name for a self-reactive material or an organic peroxide, as 
listed in Column 2 of the Table, must be selected based on the 
material's technical name and concentration, in accordance with the 
provisions of Secs. 173.224 or 173.225 of this subchapter, respectively.
    (14) A proper shipping name that describes all isomers of a material 
may be used to identify any isomer of that material if the isomer meets 
criteria for the same hazard class or division, subsidiary risk(s) and 
packing group, unless the isomer is specifically identified in the 
Table.
    (15) Hydrates of inorganic substances may be identified using the 
proper shipping name for the equivalent anhydrous substance if the 
hydrate meets the same hazard class or division, subsidiary risk(s) and 
packing group, unless the hydrate is specifically identified in the 
Table.
    (d) Column 3: Hazard class or Division. Column 3 contains a 
designation of the hazard class or division corresponding to each proper 
shipping name, or the word ``Forbidden''.
    (1) A material for which the entry in this column is ``Forbidden'' 
may not be offered for transportation or transported. This prohibition 
does not apply if the material is diluted, stabilized or incorporated in 
a device and it is

[[Page 102]]

classed in accordance with the definitions of hazardous materials 
contained in part 173 of this subchapter.
    (2) When a reevaluation of test data or new data indicates a need to 
modify the ``Forbidden'' designation or the hazard class or packing 
group specified for a material specifically identified in the Table, 
this data should be submitted to the Associate Administrator for 
Hazardous Materials Safety.
    (3) A basic description of each hazard class and the section 
reference for class definitions appear in Sec. 173.2 of this subchapter.
    (4) Each reference to a Class 3 material is modified to read 
``Combustible liquid'' when that material is reclassified in accordance 
with Sec. 173.150 (e) or (f) of this subchapter or has a flash point 
above 60.5 deg.C (141 deg.F) but below 93 deg.C (200 deg.F).
    (e) Column 4: Identification number. Column 4 lists the 
identification number assigned to each proper shipping name. Those 
preceded by the letters ``UN'' are associated with proper shipping names 
considered appropriate for international transportation as well as 
domestic transportation. Those preceded by the letters ``NA'' are 
associated with proper shipping names not recognized for international 
transportation, except to and from Canada. Identification numbers in the 
``NA9000'' series are associated with proper shipping names not 
appropriately covered by international hazardous materials (dangerous 
goods) transportation standards, or not appropriately addressed by 
international transportation standards for emergency response 
information purposes, except for transportation between the United 
States and Canada.
    (f) Column 5: Packing group. Column 5 specifies one or more packing 
groups assigned to a material corresponding to the proper shipping name 
and hazard class for that material. Class 2, Class 7, Division 6.2 
(other than regulated medical wastes), and ORD-D materials, do not have 
packing groups. Packing Groups I, II and III indicate the degree of 
danger presented by the material is either great, medium or minor, 
respectively. If more than one packing group is indicated for an entry, 
the packing group for the hazardous material is determined using the 
criteria for assignment of packing groups specified in subpart D of part 
173. When a reevaluation of test data or new data indicates a need to 
modify the specified packing group(s), the data should be submitted to 
the Associate Administrator for Hazardous Materials Safety. Each 
reference in this column to a material which is a hazardous waste or a 
hazardous substance, and whose proper shipping name is preceded in 
Column 1 of the Table by the letter ``A'' or ``W'', is modified to read 
``III'' on those occasions when the material is offered for 
transportation or transported by a mode in which its transportation is 
not otherwise subject to requirements of this subchapter.
    (g) Column 6: Labels. Column 6 specifies codes which represent the 
hazard warning labels required for a package filled with a material 
conforming to the associated hazard class and proper shipping name, 
unless the package is otherwise excepted from labeling by a provision in 
subpart E of this part, or part 173 of this subchapter. The first code 
is indicative of the primary hazard of the material. Additional label 
codes are indicative of subsidiary hazards. Provisions in Sec. 172.402 
may require that a label other than that specified in Column 6 be 
affixed to the package in addition to that specified in Column 6. No 
label is required for a material classed as a combustible liquid or for 
a Class 3 material that is reclassed as a combustible liquid. The codes 
contained in Column 6 are defined according to the following table:

                        Label Substitution Table                        
------------------------------------------------------------------------
             Label code                           Label name            
------------------------------------------------------------------------
1..................................  Explosive.                         
1.1 \1\............................  Explosive 1.1.\1\                  
1.2 \1\............................  Explosive 1.2.\1\                  
1.3 \1\............................  Explosive 1.3.\1\                  
1.4 \1\............................  Explosive 1.4.\1\                  
1.5 \1\............................  Explosive 1.5.\1\                  
1.6 \1\............................  Explosive 1.6.\1\                  
2.1................................  Flammable Gas.                     
2.2................................  Non-Flammable Gas.                 
2.3................................  Poison Gas.                        
3..................................  Flammable Liquid.                  
4.1................................  Flammable Solid.                   
4.2................................  Spontaneously Combustible.         
4.3................................  Dangerous When Wet.                
5.1................................  Oxidizer.                          
5.2................................  Organic Peroxide.                  
6.1 (I) \2\........................  Poison.                            
6.1 (II) \2\.......................  Poison.                            

[[Page 103]]

                                                                        
6.1 (III) \2\......................  Keep Away From Food.               
6.2................................  Infectious Substance.              
7..................................  Radioactive.                       
8..................................  Corrosive.                         
9..................................  Class 9.                           
------------------------------------------------------------------------
\1\ Refers to the appropriate compatibility group letter.               
\2\ The packing group for a material is indicated in column 5 of the    
  table.                                                                

    (h) Column 7: Special provisions. Column 7 specifies codes for 
special provisions applicable to hazardous materials. When Column 7 
refers to a special provision for a hazardous material, the meaning and 
requirements of that special provision are as set forth in Sec. 172.102 
of this subpart.
    (i) Column 8: Packaging authorizations. Columns 8A, 8B and 8C 
specify the applicable sections for exceptions, non-bulk packaging 
requirements and bulk packaging requirements, respectively, in part 173 
of this subchapter. Columns 8A, 8B and 8C are completed in a manner 
which indicates that ``Sec. 173.'' precedes the designated numerical 
entry. For example, the entry ``202'' in Column 8B associated with the 
proper shipping name ``Gasoline'' indicates that for this material 
conformance to non-bulk packaging requirements prescribed in 
Sec. 173.202 of this subchapter is required. When packaging requirements 
are specified, they are in addition to the standard requirements for all 
packagings prescribed in Sec. 173.24 of this subchapter and any other 
applicable requirements in subparts A and B of part 173 of this 
subchapter.
    (1) Exceptions. Column 8A contains exceptions from some of the 
requirements of this subchapter. The referenced exceptions are in 
addition to those specified in subpart A of part 173 and elsewhere in 
this subchapter. A ``None'' in this column means no packaging exceptions 
are authorized, except as may be provided by special provisions in 
Column 7.
    (2) Non-bulk packaging. Column 8B references the section in part 173 
of this subchapter which prescribes packaging requirements for non-bulk 
packagings. A ``None'' in this column means non-bulk packagings are not 
authorized, except as may be provided by special provisions in Column 7. 
Each reference in this column to a material which is a hazardous waste 
or a hazardous substance, and whose proper shipping name is preceded in 
Column 1 of the Table by the letter ``A'' or ``W'', is modified to 
include ``Sec. 173.203'' or ``Sec. 173.213'', as appropriate for liquids 
and solids, respectively, on those occasions when the material is 
offered for transportation or transported by a mode in which its 
transportation is not otherwise subject to the requirements of this 
subchapter.
    (3) Bulk packaging. Column 8C specifies the section in part 173 of 
this subchapter which prescribes packaging requirements for bulk 
packagings, subject to the limitations, requirements and additional 
authorizations of Column 7. A ``None'' in this column means bulk 
packagings are not authorized, except as may be provided by special 
provisions in Column 7. Additional authorizations and limitations for 
use of IM portable tanks are set forth in Column 7. For each reference 
in this column to a material which is a hazardous waste or a hazardous 
substance, and whose proper shipping name is preceded in Column 1 of the 
Table by the letter ``A'' or ``W'' and which is offered for 
transportation or transported by a mode in which its transportation is 
not otherwise subject to the requirements of this subchapter:
    (i) The column reference is Sec. 173.240 or Sec. 173.241, as 
appropriate.
    (ii) For a solid material, the exception provided in Special 
provision B54 is applicable.
    (iii) For a Class 9 material which meets the definition of an 
elevated temperature material, the column reference is Sec. 173.247.
    (4) For a hazardous material which is specifically named in the 
Table and whose packaging sections specify packagings not applicable to 
the form of the material (e.g., packaging specified is for solid 
material and the material is being offered for transportation in a 
liquid form) the following table should be used to determine the 
appropriate packaging section:

                                                                        
------------------------------------------------------------------------
                                                 Corresponding packaging
Packaging section reference for solid materials     section for liquid  
                                                        materials       
------------------------------------------------------------------------
Sec.  173.187..................................            Sec.  173.181
Sec.  173.211..................................            Sec.  173.201
Sec.  173.212..................................            Sec.  173.202
Sec.  173.213..................................            Sec.  173.203

[[Page 104]]

                                                                        
Sec.  173.240..................................            Sec.  173.241
Sec.  173.242..................................            Sec.  173.243
------------------------------------------------------------------------

    (j) Column 9: Quantity limitations. Columns 9A and 9B specify the 
maximum quantities that may be offered for transportation in one package 
by passenger-carrying aircraft or passenger-carrying rail car (Column 
9A) or by cargo aircraft only (Column 9B), subject to the following:
    (1) ``Forbidden'' means the material may not be offered for 
transportation or transported in the applicable mode of transport.
    (2) The quantity limitation is ``net'' except where otherwise 
specified, such as for ``Consumer commodity'' which specifies ``30 kg 
gross.''
    (3) When articles or devices are specifically listed by name, the 
net quantity limitation applies to the entire article or device (less 
packaging and packaging materials) rather than only to its hazardous 
components.
    (4) A package offered or intended for transportation by aircraft and 
which is filled with a material forbidden on passenger-carrying aircraft 
but permitted on cargo aircraft only, or which exceeds the maximum net 
quantity authorized on passenger-carrying aircraft, shall be labelled 
with the CARGO AIRCRAFT ONLY label specified in Sec. 172.448 of this 
part.
    (k) Column 10: Vessel stowage requirements. Column 10A [Vessel 
stowage] specifies the authorized stowage locations on board cargo and 
passenger vessels. Column 10B [Other provisions] specifies codes for 
stowage requirements for specific hazardous materials. The meaning of 
each code in Column 10B is set forth in Sec. 176.84 of this subchapter. 
Section 176.63 of this subchapter sets forth the physical requirements 
for each of the authorized locations listed in Column 10A. (For bulk 
transportation by vessel, see 46 CFR parts 30 to 40, 70, 98, 148, 151, 
153 and 154.) The authorized stowage locations specified in Column 10A 
are defined as follows:
    (1) Stowage category ``A'' means the material may be stowed ``on 
deck'' or ``under deck'' on a cargo vessel and on a passenger vessel.
    (2) Stowage category ``B'' means--
    (i) The material may be stowed ``on deck'' or ``under deck'' on a 
cargo vessel and on a passenger vessel carrying a number of passengers 
limited to not more than the larger of 25 passengers, or one passenger 
per each three meters of overall vessel length; and
    (ii) ``On deck only'' on passenger vessels in which the number of 
passengers specified in paragraph (k)(2)(i) of this section is exceeded.
    (3) Stowage category ``C'' means the material must be stowed ``on 
deck only'' on a cargo vessel and on a passenger vessel.
    (4) Stowage category ``D'' means the material must be stowed ``on 
deck only'' on a cargo vessel and on a passenger vessel carrying a 
number of passengers limited to not more than the larger of 25 
passengers or one passenger per each three meters of overall vessel 
length, but the material is prohibited on passenger vessels in which the 
limiting number of passengers is exceeded.
    (5) Stowage category ``E'' means the material may be stowed ``on 
deck'' or ``under deck'' on a cargo vessel and on a passenger vessel 
carrying a number of passengers limited to not more than the larger of 
25 passengers, or one passenger per each three meters of overall vessel 
length, but is prohibited from carriage on passenger vessels in which 
the limiting number of passengers is exceeded.
    (l) Changes to the Table. (1) Unless specifically stated otherwise 
in a rule document published in the Federal Register amending the 
Table--
    (i) Such a change does not apply to the shipment of any package 
filled prior to the effective date of the amendment; and
    (ii) Stocks of preprinted shipping papers and package markings may 
be continued in use, in the manner previously authorized, until depleted 
or for a one-year period, subsequent to the effective date of the 
amendment, whichever is less.
    (2) Except as otherwise provided in this section, any alteration of 
a shipping description or associated entry which is listed in the 
Sec. 172.101 Table must receive prior written approval from the 
Associate Administrator for Hazardous Materials Safety.

[[Page 105]]

    (3) The proper shipping name of a hazardous material changed in the 
May 6, 1997 final rule, in effect on October 1, 1997, only by the 
addition or omission of the word ``compressed,'' ``inhibited,'' 
``liquefied'' or ``solution'' may continue to be used to comply with 
package marking requirements, until January 1, 2003.

[[Page 106]]



                                                                             Sec. 172.101 Hazardous Materials Table                                                                             
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                   (8)          Packaging (Sec.                 (9)             (10)     Vessel 
                                                                                                                        173.***)                   Quantity limitations           stowage       
            Hazardous materials        Hazard       Identification           Label           Special    ----------------------------------------------------------------------------------------
Symbols   descriptions and proper     class or         Numbers        PG     Codes        provisions                                              Passenger                                     
               shipping names         Division                                                             Exceptions     Non-bulk      Bulk      aircraft/    Cargo air-    Location     Other 
                                                                                                                                                     rail      craft only                       
(1)      (2)......................          (3)  (4)                  (5  (6).......                (7)  (8A)..........  (8B)......  (8C)......         (9A)         (9B)  (10A)           (10B)
                                                                       )                                                                                                                        
                                                                                                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 ......  Accellerene, see p-        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitrosodimethylaniline.                                                                                                                                                               
 ......  Accumulators, electric,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Batteries, wet etc.                                                                                                                                                               
D......  Accumulators,                      2.2  NA1956                   2.2.......                     306...........  306.......  None......     No limit     No limit  A                    
          pressurized, pneumatic                                                                                                                                                                
          or hydraulic (containing                                                                                                                                                              
          non-flammable gas).                                                                                                                                                                   
 ......  Acetal...................            3  UN1088               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Acetaldehyde.............            3  UN1089                I  3.........      A3, B16, T20,  None..........  201.......  243.......    Forbidden         30 L  E                    
                                                                                               T26, T29                                                                                         
A......  Acetaldehyde ammonia.....            9  UN1841               II   9........                     155...........  204.......  240.......       200 kg       200 kg  A                  34
                                                                       I                                                                                                                        
 ......  Acetaldehyde oxime.......            3  UN2332               II  3.........             B1, T8  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Acetic acid, glacial or              8  UN2789               II  8, 3......    A3, A6, A7, A10  154...........  202.......  243.......          1 L         30 L  A                    
          Acetic acid solution,                                                                  B2, T8                                                                                         
          with more than 80                                                                                                                                                                     
          percent acid, by mass.                                                                                                                                                                
 ......  Acetic acid solution,                8  UN2790               II  8.........    A3, A6, A7, A10  154...........  202.......  242.......          1 L         30 L  A                    
          with more than 10                                                                      B2, T8                                                                                         
          percent but not more                                                                                                                                                                  
          than 80 percent acid, by                                                                                                                                                              
          mass.                                                                                                                                                                                 
 ......  Acetic anhydride.........            8  UN1715               II  8, 3......   A3, A6, A7, A10,  154...........  202.......  243.......          1 L         30 L  A                  40
                                                                                                 B2, T8                                                                                         
 ......  Acetone..................            3  UN1090               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Acetone cyanohydrin,               6.1  UN1541                I  6.1.......    2, A3, B9, B14,  None..........  227.......  244.......    Forbidden         30 L  D             25, 40,
          stabilized.                                                                    B32, B76, B77,                                                                                       49
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Acetone oils.............            3  UN1091               II  3.........            T7, T30  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Acetonitrile.............            3  UN1648               II  3.........                T14  150...........  202.......  242.......          1 L         60 L  B                  40
 ......  Acetyl acetone peroxide      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          with more than 9 percent                                                                                                                                                              
          by mass active oxygen.                                                                                                                                                                
 ......  Acetyl benzoyl peroxide,     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solid, or with more than                                                                                                                                                              
          40 percent in solution.                                                                                                                                                               
 ......  Acetyl bromide...........            8  UN1716               II  8.........       B2, T12, T26  154...........  202.......  242.......          1 L         30 L  C                  40
 ......  Acetyl chloride..........            3  UN1717               II  3, 8......  A3, A6, A7, B100,  None..........  202.......  243.......          1 L          5 L  B                  40
                                                                                          N34, T18, T26                                                                                         
 ......  Acetyl                       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          cyclohexanesulfonyl                                                                                                                                                                   
          peroxide, with more than                                                                                                                                                              
          82 percent wetted with                                                                                                                                                                
          less than 12 percent                                                                                                                                                                  
          water.                                                                                                                                                                                

[[Page 107]]

                                                                                                                                                                                                
 ......  Acetyl iodide............            8  UN1898               II  8.........       B2, B101, T9  154...........  202.......  242.......          1 L         30 L  C                  40
 ......  Acetyl methyl carbinol...            3  UN2621               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Acetyl peroxide, solid,      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          or with more than 25                                                                                                                                                                  
          percent in solution.                                                                                                                                                                  
 ......  Acetylene, dissolved.....          2.1  UN1001                   2.1.......                     None..........  303.......  None......    Forbidden        15 kg  D             25, 40,
                                                                                                                                                                                              57
 ......  Acetylene (liquefied)....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Acetylene silver nitrate.    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Acetylene tetrabromide,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Tetrabromoethane.                                                                                                                                                                 
 ......  Acid butyl phosphate, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Butyl acid phosphate.                                                                                                                                                                 
 ......  Acid, sludge, see Sludge   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          acid.                                                                                                                                                                                 
 ......  Acridine.................          6.1  UN2713               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Acrolein dimer,                      3  UN2607               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                  40
          stabilized.                                                  I                                                                                                                        
 ......  Acrolein, inhibited......          6.1  UN1092                I  6.1, 3....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B42, B72, B77,                                                                                         
                                                                                          T38, T43, T44                                                                                         
 ......  Acrylamide...............          6.1  UN2074               II  6.1.......                 T8  153...........  213.......  240.......       100 kg       200 kg  A                  12
                                                                       I                                                                                                                        
 ......  Acrylic acid, inhibited..            8  UN2218               II  8, 3......             B2, T8  154...........  202.......  243.......          1 L         30 L  C              25, 40
 ......  Acrylonitrile, inhibited.            3  UN1093                I  3, 6.1....       B9, T18, T26  None..........  201.......  243.......    Forbidden         30 L  E                  40
 ......  Actuating cartridge,       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          explosive, see                                                                                                                                                                        
          Cartridges, power device.                                                                                                                                                             
 ......  Adhesives, containing a              3  UN1133                I  3.........       B42, T7, T30  150...........  201.......  243.......          1 L         30 L  B             .......
          flammable liquid.                                                                                                                                                                     
         .........................  ...........  ...................  II  3.........       B52, T7, T30  150...........  173.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........   B1, B52, T7, T30  150...........  173.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Adiponitrile.............          6.1  UN2205               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Aerosols, corrosive,               2.2  UN1950                   2.2, 8....                A34  306...........  None......  None......        75 kg       150 kg  A             40, 48,
          Packing Group II or III,                                                                                                                                                            85
          (each not exceeding 1 L                                                                                                                                                               
          capacity).                                                                                                                                                                            
 ......  Aerosols, flammable,               2.1  UN1950                   2.1.......                N82  306...........  None......  None......        75 kg       150 kg  A             40, 48,
          (each not exceeding 1 L                                                                                                                                                             85
          capacity).                                                                                                                                                                            
 ......  Aerosols, flammable,               2.1  UN1950               ..  2.1.......                N82  306...........  None......  None......    Forbidden    Forbidden  A             40, 48,
          n.o.s. (engine starting                                                                                                                                                             85
          fluid) (each not                                                                                                                                                                      
          exceeding 1 L capacity).                                                                                                                                                              
 ......  Aerosols, non-flammable,           2.2  UN1950                   2.2.......                     306, 307......  None......  None......        75 kg       150 kg  A              48, 85
          (each not exceeding 1 L                                                                                                                                                               
          capacity).                                                                                                                                                                            
 ......  Aerosols, poison, each             2.2  UN1950                   2.2.......                     306...........  None......  None......    Forbidden    Forbidden  A             40, 48,
          not exceeding 1 L                                                                                                                                                                   85
          capacity.                                                                                                                                                                             
 ......  Air bag inflators or Air             9  UN3268               II   9........                     166...........  166.......  166.......        25 kg       100 kg  A                    
          bag modules or Seat-belt                                     I                                                                                                                        
          pre-tensioners.                                                                                                                                                                       
 ......  Air, compressed..........          2.2  UN1002                   2.2.......                     306...........  302.......  302.......        75 kg       150 kg  A                    
 ......  Air, refrigerated liquid,          2.2  UN1003                   2.2, 5.1..                     320...........  316.......  318, 319..    Forbidden       150 kg  D                  51
          (cryogenic liquid).                                                                                                                                                                   
 ......  Air, refrigerated liquid,          2.2  UN1003                   2.2, 5.1..                     320...........  316.......  318, 319..    Forbidden    Forbidden  D                  51
          (cryogenic liquid) non-                                                                                                                                                               
          pressurized.                                                                                                                                                                          
 ......  Aircraft evacuation        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          slides, see Life saving                                                                                                                                                               
          appliances etc.                                                                                                                                                                       

[[Page 108]]

                                                                                                                                                                                                
 ......  Aircraft hydraulic power             3  UN3165                I  3, 6.1, 8.                     None..........  172.......  None......    Forbidden         42 L  E                    
          unit fuel tank                                                                                                                                                                        
          (containing a mixture of                                                                                                                                                              
          anhydrous hydrazine and                                                                                                                                                               
          monomethyl hydrazine)                                                                                                                                                                 
          (M86 fuel).                                                                                                                                                                           
 ......  Aircraft survival kits,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Life saving                                                                                                                                                                       
          appliances etc.                                                                                                                                                                       
 ......  Alcoholates solution,                3  UN3274               II  3, 8......                      None.........  202.......  243.......          1 L          5 L  B                    
          n.o.s., in alcohol.                                                                                                                                                                   
 ......  Alcoholic beverages......            3  UN3065               II  3.........         24, B1, T1  150...........  202.......  242.......          5 L         60 L  A                    
         .........................  ...........  ...................  II  3.........    24, B1, N11, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Alcohols, n.o.s..........            3  UN1987                I  3.........            T8, T31  None..........  201.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Alcohols, flammable,                 3  UN1986                I  3, 6.1....            T8, T31  None..........  201.......  243.......    Forbidden         30 L  E                  40
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  3, 6.1....            T8, T31  None..........  202.......  243.......          1 L         60 L  B                  40
         .........................  ...........  ...................  II  3, 6.1....        B1, T8, T31  None..........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Aldehydes, n.o.s.........            3  UN1989                I  3.........            T8, T31  None..........  201.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Aldehydes, flammable,                3  UN1988                I  3, 6.1....            T8, T31  None..........  201.......  243.......    Forbidden         30 L  E                  40
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  3, 6.1....            T8, T31  None..........  202.......  243.......          1 L         60 L  B                  40
         .........................  ...........  ...................  II  3, 6.1....        B1, T8, T31  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Aldol....................          6.1  UN2839               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                  12
D......  Aldrin, liquid...........          6.1  NA2762               II  6.1.......                     None..........  202.......  243.......          5 L         60 L  B                    
D......  Aldrin, solid............          6.1  NA2761               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
 ......  Alkali metal alcoholates,          4.2  UN3206               II  4.2, 8....                 64  None..........  212.......  242.......        15 kg        50 kg  B                    
          self-heating, corrosive,                                                                                                                                                              
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.2, 8....                 64  None..........  213.......  242.......        25 kg       100 kg  B                    
                                                                       I                                                                                                                        
 ......  Alkali metal alloys,               4.3  UN1421                I  4.3.......   A2, A3, B48, N34  None..........  201.......  244.......    Forbidden          1 L  D                    
          liquid, n.o.s.                                                                                                                                                                        
 ......  Alkali metal amalgams....          4.3  UN1389                I  4.3.......        A2, A3, N34  None..........  201.......  244.......    Forbidden          1 L  D                    
 ......  Alkali metal amides......          4.3  UN1390               II  4.3.......   A6, A7, A8, A19,  151...........  212.......  241.......        15 kg        50 kg  E                  40
                                                                                              A20, B106                                                                                         
 ......  Alkali metal dispersions,          4.3  UN1391                I  4.3.......             A2, A3  None..........  201.......  244.......    Forbidden          1 L  D                    
          or Alkaline earth metal                                                                                                                                                               
          dispersions.                                                                                                                                                                          
 ......  Alkaline corrosive         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquids, n.o.s., see                                                                                                                                                                  
          Caustic alkali liquids,                                                                                                                                                               
          n.o.s.                                                                                                                                                                                
 ......  Alkaline earth metal               4.2  UN3205               II  4.2.......                 65  None..........  212.......  241.......        15 kg        50 kg  B                    
          alcoholates, n.o.s.                                                                                                                                                                   
         .........................  ...........  ...................  II  4.2.......                 65  None..........  213.......  241.......        15 kg       100 kg  B                    
                                                                       I                                                                                                                        

[[Page 109]]

                                                                                                                                                                                                
 ......  Alkaline earth metal               4.3  UN1393               II  4.3.......    A19, B101, B106  151...........  212.......  241.......        15 kg        50 kg  E                    
          alloys, n.o.s.                                                                                                                                                                        
 ......  Alkaline earth metal               4.3  UN1392                I  4.3.......   A19, B101, B106,  None..........  211.......  242.......    Forbidden        15 kg  D                    
          amalgams.                                                                            N34, N40                                                                                         
 ......  Alkaloids, liquid,                 6.1  UN3140                I  6.1.......            A4, T42  None..........  201.......  243.......          1 L         30 L  A                    
          n.o.s., or Alkaloid                                                                                                                                                                   
          salts, liquid, n.o.s.                                                                                                                                                                 
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Alkaloids, solid, n.o.s.           6.1  UN1544                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                    
          or Alkaloid salts,                                                                                                                                                                    
          solid, n.o.s. poisonous.                                                                                                                                                              
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Alkyl sulfonic acids,                8  UN2584               II  8.........        B2, T8, T27  154...........  202.......  242.......          1 L         30 L  B                    
          liquid or Aryl sulfonic                                                                                                                                                               
          acids, liquid with more                                                                                                                                                               
          than 5 percent free                                                                                                                                                                   
          sulfuric acid.                                                                                                                                                                        
 ......  Alkyl sulfonic acids,                8  UN2586               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  B                    
          liquid or Aryl sulfonic                                      I                                                                                                                        
          acids, liquid with not                                                                                                                                                                
          more than 5 percent free                                                                                                                                                              
          sulfuric acid.                                                                                                                                                                        
 ......  Alkyl sulfonic acids,                8  UN2583               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
          solid or Aryl sulfonic                                                                                                                                                                
          acids, solid, with more                                                                                                                                                               
          than 5 percent free                                                                                                                                                                   
          sulfuric acid.                                                                                                                                                                        
 ......  Alkyl sulfonic acids,                8  UN2585               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
          solid or Aryl sulfonic                                       I                                                                                                                        
          acids, solid with not                                                                                                                                                                 
          more than 5 percent free                                                                                                                                                              
          sulfuric acid.                                                                                                                                                                        
 ......  Alkylphenols, liquid,                8  UN3145                I  8.........                 T8  None..........  201.......  243.......        0.5 L        2.5 L  B                    
          n.o.s. (including C2-C12                                                                                                                                                              
          homologues).                                                                                                                                                                          
         .........................  ...........  ...................  II  8.........                 T8  154...........  202.......  242.......          1 L         30 L  B                    
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Alkylphenols, solid,                 8  UN2430                I  8.........                 T8  None..........  211.......  242.......         1 kg        25 kg  B                    
          n.o.s. (including C2-C12                                                                                                                                                              
          homologues).                                                                                                                                                                          
         .........................  ...........  ...................  II  8.........                 T8  154...........  212.......  240.......        15 kg        50 kg  B                    
         .........................  ...........  ...................  II  8.........                 T8  154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Alkylsulfuric acids......            8  UN2571               II  8.........        B2, T9, T27  154...........  202.......  242.......          1 L         30 L  C                  14
 ......  Allethrin, see             ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Pesticides, liquid,                                                                                                                                                                   
          toxic, n.o.s.                                                                                                                                                                         
 ......  Allyl acetate............            3  UN2333               II  3, 6.1....                 T8  None..........  202.......  243.......          1 L         60 L  E                  40
 ......  Allyl alcohol............          6.1  UN1098                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Allyl bromide............            3  UN1099                I  3, 6.1....                T18  None..........  201.......  243.......    Forbidden         30 L  B                  40
 ......  Allyl chloride...........            3  UN1100                I  3, 6.1....           T18, T26  None..........  201.......  243.......    Forbidden         30 L  E                  40
 ......  Allyl chlorocarbonate,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Allyl chloroformate.                                                                                                                                                              
 ......  Allyl chloroformate......          6.1  UN1722                I  6.1, 3, 8.    2, A3, B9, B14,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B32, B74, N41,                                                                                         
                                                                                          T38, T43, T45                                                                                         
 ......  Allyl ethyl ether........            3  UN2335               II  3, 6.1....                 T8  None..........  202.......  243.......          1 L         60 L  E                  40
 ......  Allyl formate............            3  UN2336                I  3, 6.1....           T18, T26  None..........  201.......  243.......    Forbidden         30 L  E                  40
 ......  Allyl glycidyl ether.....            3  UN2219               II  3.........             B1, T7  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Allyl iodide.............            3  UN1723               II  3, 8......      A3, A6, B100,  None..........  202.......  243.......          1 L          5 L  B                  40
                                                                                               N34, T18                                                                                         

[[Page 110]]

                                                                                                                                                                                                
 ......  Allyl isothiocyanate,              6.1  UN1545               II  6.1, 3....             A3, A7  None..........  202.......  243.......    Forbidden         60 L  D                  40
          stabilized.                                                                                                                                                                           
 ......  Allylamine...............          6.1  UN2334                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Allyltrichlorosilane,                8  UN1724               II  8, 3......   A7, B2, B6, N34,  None..........  202.......  243.......    Forbidden         30 L  C                  40
          stabilized.                                                                           T8, T26                                                                                         
 ......  Aluminum alkyl halides...          4.2  UN3052                I  4.2.......      B9, B11, T28,  None..........  181.......  244.......    Forbidden    Forbidden  D                    
                                                                                               T29, T40                                                                                         
 ......  Aluminum alkyl hydrides..          4.2  UN3076                I  4.2.......      B9, B11, T28,  None..........  181.......  244.......    Forbidden    Forbidden  D                    
                                                                                               T29, T40                                                                                         
 ......  Aluminum alkyls..........          4.2  UN3051                I  4.2.......      B9, B11, T28,  None..........  181.......  244.......    Forbidden    Forbidden  D                    
                                                                                               T29, T40                                                                                         
 ......  Aluminum borohydride or            4.2  UN2870                I  4.2, 4.3..                B11  None..........  181.......  244.......    Forbidden    Forbidden  D                    
          Aluminum borohydride in                                                                                                                                                               
          devices.                                                                                                                                                                              
 ......  Aluminum bromide,                    8  UN1725               II  8.........               B106  154...........  212.......  240.......        15 kg        50 kg  A                  40
          anhydrous.                                                                                                                                                                            
 ......  Aluminum bromide,                    8  UN2580               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                    
          solution.                                                    I                                                                                                                        
 ......  Aluminum carbide.........          4.3  UN1394               II  4.3.......   A20, B101, B106,  151...........  212.......  242.......        15 kg        50 kg  A                    
                                                                                                    N41                                                                                         
 ......  Aluminum chloride,                   8  UN1726               II  8.........               B106  154...........  212.......  240.......        15 kg        50 kg  A                  40
          anhydrous.                                                                                                                                                                            
 ......  Aluminum chloride,                   8  UN2581               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                    
          solution.                                                    I                                                                                                                        
 ......  Aluminum dross, wet or       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hot.                                                                                                                                                                                  
 ......  Aluminum ferrosilicon              4.3  UN1395               II  4.3, 6.1..    A19, B106, B108  151...........  212.......  242.......        15 kg        50 kg  A             40, 85,
          powder.                                                                                                                                                                            103
         .........................  ...........  ...................  II  4.3, 6.1..    A19, A20, B106,  151...........  213.......  241.......        25 kg       100 kg  A             40, 85,
                                                                       I                           B108                                                                                      103
 ......  Aluminum hydride.........          4.3  UN2463                I  4.3.......     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
D......  Aluminum, molten.........            9  NA9260               II   9........                     None..........  None......  247.......    Forbidden    Forbidden  D                    
                                                                       I                                                                                                                        
 ......  Aluminum nitrate.........          5.1  UN1438               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Aluminum phosphate         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see Corrosive                                                                                                                                                               
          liquids, etc.                                                                                                                                                                         
 ......  Aluminum phosphide.......          4.3  UN1397                I  4.3, 6.1..     A8, A19, B100,  None..........  211.......  242.......    Forbidden        15 kg  E              40, 85
                                                                                                    N40                                                                                         
 ......  Aluminum phosphide                 6.1  UN3048                I  6.1.......                 A8  None..........  211.......  242.......    Forbidden        15 kg  E              40, 85
          pesticides.                                                                                                                                                                           
 ......  Aluminum powder, coated..          4.1  UN1309               II  4.1.......                     151...........  212.......  240.......        15 kg        50 kg  A             13, 39,
                                                                                                                                                                                             101
         .........................  ...........  ...................  II  4.1.......                     151...........  213.......  240.......        25 kg       100 kg  A             13, 39,
                                                                       I                                                                                                                     101
 ......  Aluminum powder, uncoated          4.3  UN1396               II  4.3.......    A19, A20, B106,  151...........  212.......  242.......        15 kg        50 kg  A                  39
                                                                                                   B108                                                                                         

[[Page 111]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  4.3.......    A19, A20, B106,  151...........  213.......  241.......        25 kg       100 kg  A                  39
                                                                       I                           B108                                                                                         
 ......  Aluminum resinate........          4.1  UN2715               II  4.1.......                     151...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Aluminum silicon powder,           4.3  UN1398               II  4.3.......      A1, A19, B108  151...........  213.......  241.......        25 kg       100 kg  A             40, 85,
          uncoated.                                                    I                                                                                                                     103
 ......  Aluminum smelting by-              4.3  UN3170               II  4.3.......         B106, B115  None..........  212.......  242.......        15 kg        50 kg  B             85, 103
          products or Aluminum                                                                                                                                                                  
          remelting by-products.                                                                                                                                                                
         .........................  ...........  ...................  II  4.3.......         B106, B115  None..........  213.......  241.......        25 kg       100 kg  B             85, 103
                                                                       I                                                                                                                        
 ......  Amatols, see Explosives,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          blasting, type B.                                                                                                                                                                     
 ......  Amines, flammable,                   3  UN2733                I  3, 8......                T42  None..........  201.......  243.......        0.5 L        2.5 L  D                  40
          corrosive, n.o.s. or                                                                                                                                                                  
          Polyamines, flammable,                                                                                                                                                                
          corrosive, n.o.s..                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 8......            T8, T31  None..........  202.......  243.......          1 L          5 L  B                  40
         .........................  ...........  ...................  II  3, 8......        B1, T8, T31  150...........  203.......  242.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Amines, liquid,                      8  UN2734                I  8, 3......   A3, A6, N34, T8,  None..........  201.......  243.......        0.5 L        2.5 L  A                    
          corrosive, flammable,                                                                     T31                                                                                         
          n.o.s. or Polyamines,                                                                                                                                                                 
          liquid, corrosive,                                                                                                                                                                    
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8, 3......            T8, T31  None..........  202.......  243.......          1 L         30 L  A                    
 ......  Amines, liquid,                      8  UN2735                I  8.........  A3, A6, B10, N34,  None..........  201.......  243.......        0.5 L        2.5 L  A                    
          corrosive, n.o.s, or                                                                      T42                                                                                         
          Polyamines, liquid,                                                                                                                                                                   
          corrosive, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
         .........................  ...........  ...................  II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Amines, solid, corrosive,            8  UN3259                I  8.........                     None..........  211.......  242.......         1 kg        25 kg  A                    
          n.o.s., or Polyamines,                                                                                                                                                                
          solid, corrosive n.o.s.                                                                                                                                                               
         .........................  ...........  ...................  II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
         .........................  ...........  ...................  II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  2-Amino-4-chlorophenol...          6.1  UN2673               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  2-Amino-5-                         6.1  UN2946               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
          diethylaminopentane.                                         I                                                                                                                        
 ......  2-Amino-4,6-                       4.1  UN3317                I  4.1.......   23,A8, A19, A20,  None..........  211.......  None......         1 kg        15 kg  E              28, 36
          Dinitrophenol, wetted                                                                     N41                                                                                         
          with not less than 20                                                                                                                                                                 
          percent water by mass.                                                                                                                                                                
 ......  2-(2-Aminoethoxy) ethanol            8  UN3055               II  8.........                 T2  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  N-Aminoethylpiperazine...            8  UN2815               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                  12
                                                                       I                                                                                                                        
 ......  Aminophenols (o-; m-; p-)          6.1  UN2512               II  6.1.......                 T1  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Aminopropyldiethanolamine  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          , see Amines,etc.                                                                                                                                                                     
 ......  n-Aminopropylmorpholine,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Amines, etc.                                                                                                                                                                      
 ......  Aminopyridines (o-; m-; p-         6.1  UN2671               II  6.1.......                 T7  None..........  212.......  242.......        25 kg       100 kg  B              12, 40
          ).                                                                                                                                                                                    
I......  Ammonia, anhydrous.......          2.3  UN1005               ..  2.3, 8....                  4  None..........  304.......  314, 315..    Forbidden        25 kg  D              40, 57
D......  Ammonia, anhydrous.......          2.2  UN1005               ..  2.2.......                 13  None..........  304.......  314, 315..    Forbidden        25 kg  D              40, 57
D......  Ammonia solution,                  2.2  UN3318               ..  2.2.......                 13  None..........  304.......  314, 315..    Forbidden        25 kg  D              40, 57
          relative density less                                                                                                                                                                 
          than 0.880 at 15 degrees                                                                                                                                                              
          C in water, with more                                                                                                                                                                 
          than 50 percent ammonia.                                                                                                                                                              

[[Page 112]]

                                                                                                                                                                                                
I......  Ammonia solution,                  2.3  UN3318               ..  2.3, 8....                  4  None..........  304.......  314, 315..    Forbidden        25 kg  D              40, 57
          relative density less                                                                                                                                                                 
          than 0.880 at 15 degrees                                                                                                                                                              
          C in water, with more                                                                                                                                                                 
          than 50 percent ammonia.                                                                                                                                                              
 ......  Ammonia solutions,                   8  UN2672               II  8.........                T14  154...........  203.......  241.......          5 L         60 L  A              40, 85
          relative density between                                     I                                                                                                                        
          0.880 and 0.957 at 15                                                                                                                                                                 
          degrees C in water, with                                                                                                                                                              
          more than 10 percent but                                                                                                                                                              
          not more than 35 percent                                                                                                                                                              
          ammonia.                                                                                                                                                                              
 ......  Ammonia solutions,                 2.2  UN2073                   2.2.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E              40, 57
          relative density less                                                                                                                                                                 
          than 0.880 at 15 degrees                                                                                                                                                              
          C in water, with more                                                                                                                                                                 
          than 35 percent but not                                                                                                                                                               
          more than 50 percent                                                                                                                                                                  
          ammonia.                                                                                                                                                                              
 ......  Ammonium arsenate........          6.1  UN1546               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Ammonium azide...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ammonium bifluoride,       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solid, see Ammonium                                                                                                                                                                   
          hydrogen difluoride,                                                                                                                                                                  
          solid.                                                                                                                                                                                
 ......  Ammonium bifluoride        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see Ammonium                                                                                                                                                                
          hydrogen difluoride,                                                                                                                                                                  
          solution.                                                                                                                                                                             
 ......  Ammonium bromate.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ammonium chlorate........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ammonium dichromate......          5.1  UN1439               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A                    
 ......  Ammonium dinitro-o-                6.1  UN1843               II  6.1.......                 T8  None..........  212.......  242.......        25 kg       100 kg  B             36, 65,
          cresolate.                                                                                                                                                                      66, 77
 ......  Ammonium fluoride........          6.1  UN2505               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Ammonium fluorosilicate..          6.1  UN2854               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Ammonium fulminate.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ammonium hydrogen sulfate            8  UN2506               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                  40
 ......  Ammonium                             8  UN1727               II  8.........          B106, N34  154...........  212.......  240.......        15 kg        50 kg  A             25, 26,
          hydrogendifluoride,                                                                                                                                                                 40
          solid.                                                                                                                                                                                
 ......  Ammonium                             8  UN2817               II  8, 6.1....           N34, T15  None..........  202.......  243.......          1 L         30 L  B                  40
          hydrogendifluoride,                                                                                                                                                                   
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8, 6.1....                 T8  154...........  203.......  241.......          5 L         60 L  B              40, 95
                                                                       I                                                                                                                        
 ......  Ammonium hydrosulfide,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see Ammonium                                                                                                                                                                
          sulfide solution.                                                                                                                                                                     
D......  Ammonium hydroxide, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ammonia solutions, etc.                                                                                                                                                               

[[Page 113]]

                                                                                                                                                                                                
 ......  Ammonium metavanadate....          6.1  UN2859               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
D......  Ammonium nitrate                   5.1  NA2072               II  5.1.......                  7  152...........  213.......  240.......        25 kg       100 kg  B             48, 59,
          fertilizers.                                                 I                                                                                                                 60, 117
 ......  Ammonium nitrate                   5.1  UN2067               II  5.1.......                 52  152...........  213.......  240.......        25 kg       100 kg  B             48, 59,
          fertilizers; uniform non-                                    I                                                                                                                 60, 117
          segregating mixtures of                                                                                                                                                               
          ammonium nitrate with                                                                                                                                                                 
          added matter which is                                                                                                                                                                 
          inorganic and chemically                                                                                                                                                              
          inert towards ammonium                                                                                                                                                                
          nitrate, with not less                                                                                                                                                                
          than 90 percent ammonium                                                                                                                                                              
          nitrate and not more                                                                                                                                                                  
          than 0.2 percent                                                                                                                                                                      
          combustible material                                                                                                                                                                  
          (including organic                                                                                                                                                                    
          material calculated as                                                                                                                                                                
          carbon), or with more                                                                                                                                                                 
          than 70 percent but less                                                                                                                                                              
          than 90 percent ammonium                                                                                                                                                              
          nitrate and not more                                                                                                                                                                  
          than 0.4 percent total                                                                                                                                                                
          combustible material..                                                                                                                                                                
AW.....  Ammonium nitrate                     9  UN2071               II   9........                     155...........  213.......  240.......       200 kg       200 kg  A                    
          fertilizers: uniform non-                                    I                                                                                                                        
          segregating mixtures of                                                                                                                                                               
          nitrogen/phosphate or                                                                                                                                                                 
          nitrogen/potash types or                                                                                                                                                              
          complete fertilizers of                                                                                                                                                               
          nitrogen/ phosphate/                                                                                                                                                                  
          potash type, with not                                                                                                                                                                 
          more than 70 percent                                                                                                                                                                  
          ammonium nitrate and not                                                                                                                                                              
          more than 0.4 percent                                                                                                                                                                 
          total added combustible                                                                                                                                                               
          material or with not                                                                                                                                                                  
          more than 45 percent                                                                                                                                                                  
          ammonium nitrate with                                                                                                                                                                 
          unrestricted combustible                                                                                                                                                              
          material.                                                                                                                                                                             
D......  Ammonium nitrate-fuel oil         1.5D  NA0331               II   1.5D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          mixture containing only                                                                                                                                                               
          prilled ammonium nitrate                                                                                                                                                              
          and fuel oil.                                                                                                                                                                         
 ......  Ammonium nitrate, liquid           5.1  UN2426                   5.1.......      B5, B100, T25  None..........  None......  243.......    Forbidden    Forbidden  D              59, 60
          (hot concentrated                                                                                                                                                                     
          solution).                                                                                                                                                                            
D......  Ammonium nitrate mixed             5.1  NA2069               II  5.1.......                 10  152...........  213.......  240.......        25 kg       100 kg  B             48, 59,
          fertlizers.                                                  I                                                                                                                 60, 117
 ......  Ammonium nitrate, with            1.1D  UN0222               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             1E, 5E,
          more than 0.2 percent                                                                                                                                                              19E
          combustible substances,                                                                                                                                                               
          including any organic                                                                                                                                                                 
          substance calculated as                                                                                                                                                               
          carbon, to the exclusion                                                                                                                                                              
          of any other added                                                                                                                                                                    
          substance.                                                                                                                                                                            
 ......  Ammonium nitrate, with             5.1  UN1942               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A             48, 59,
          not more than 0.2                                            I                                                                                                                 60, 116
          percent of combustible                                                                                                                                                                
          substances, including                                                                                                                                                                 
          any organic substance                                                                                                                                                                 
          calculated as carbon, to                                                                                                                                                              
          the exclusion of any                                                                                                                                                                  
          other added substance.                                                                                                                                                                
 ......  Ammonium nitrite.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         

[[Page 114]]

                                                                                                                                                                                                
 ......  Ammonium perchlorate.....         1.1D  UN0402               II   1.1D.....                107  None..........  62........  None......    Forbidden    Forbidden  B             1E, 5E,
                                                                                                                                                                                             19E
 ......  Ammonium perchlorate.....          5.1  UN1442               II  5.1.......            107, A9  152...........  212.......  242.......         5 kg        25 kg  E             58, 69,
                                                                                                                                                                                             106
 ......  Ammonium permanganate....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ammonium persulfate......          5.1  UN1444               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Ammonium picrate, dry or          1.1D  UN0004               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             1E, 5E,
          wetted with less than 10                                                                                                                                                           19E
          percent water, by mass.                                                                                                                                                               
 ......  Ammonium picrate, wetted           4.1  UN1310                I  4.1.......        23, A2, N41  None..........  211.......  None......       0.5 kg       0.5 kg  D              28, 36
          with not less than 10                                                                                                                                                                 
          percent water, by mass.                                                                                                                                                               
 ......  Ammonium polysulfide,                8  UN2818               II  8, 6.1....                T14  None..........  202.......  243.......          1 L         30 L  B             12, 26,
          solution.                                                                                                                                                                           40
         .........................  ...........  ...................  II  8, 6.1....                 T7  154...........  203.......  241.......          5 L         60 L  B             12, 26,
                                                                       I                                                                                                                      40
 ......  Ammonium polyvanadate....          6.1  UN2861               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Ammonium silicofluoride,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Ammonium                                                                                                                                                                          
          fluorosilicate.                                                                                                                                                                       
 ......  Ammonium sulfide solution            8  UN2683               II  8, 6.1, 3.                T14  None..........  202.......  243.......          1 L         30 L  B             12, 22,
                                                                                                                                                                                         26, 100
 ......  Ammunition, blank, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cartridges for weapons,                                                                                                                                                               
          blank.                                                                                                                                                                                
 ......  Ammunition, illuminating          1.2G  UN0171               II   1.2G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          with or without burster,                                                                                                                                                              
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, illuminating          1.3G  UN0254               II   1.3G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          with or without burster,                                                                                                                                                              
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, illuminating          1.4G  UN0297               II   1.4G.....                      .............  62........  None......    Forbidden        75 kg  A                 24E
          with or without burster,                                                                                                                                                              
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, incendiary            1.3J  UN0247               II   1.3J.....                      .............  62........  None......    Forbidden    Forbidden  E                 7E,
          liquid or gel, with                                                                                                                                                               13E,
          burster, expelling                                                                                                                                                                 23E
          charge or propelling                                                                                                                                                                  
          charge.                                                                                                                                                                               

[[Page 115]]

                                                                                                                                                                                                
 ......  Ammunition, incendiary     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (water-activated                                                                                                                                                                      
          contrivances) with                                                                                                                                                                    
          burster, expelling                                                                                                                                                                    
          charge or propelling                                                                                                                                                                  
          charge, see                                                                                                                                                                           
          Contrivances, water-                                                                                                                                                                  
          activated, etc.                                                                                                                                                                       
 ......  Ammunition, incendiary,           1.2H  UN0243               II   1.2H.....                      .............  62........  None......    Forbidden    Forbidden  E                 8E,
          white phosphorus, with                                                                                                                                                            14E,
          burster, expelling                                                                                                                                                                15E,
          charge or propelling                                                                                                                                                               17E
          charge.                                                                                                                                                                               
 ......  Ammunition, incendiary,           1.3H  UN0244               II   1.3H.....                      .............  62........  None......    Forbidden    Forbidden  E                 8E,
          white phosphorus, with                                                                                                                                                            14E,
          burster, expelling                                                                                                                                                                15E,
          charge or propelling                                                                                                                                                               17E
          charge.                                                                                                                                                                               
 ......  Ammunition, incendiary            1.2G  UN0009               II   1.2G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          with or without burster,                                                                                                                                                              
          expelling charge, or                                                                                                                                                                  
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, incendiary            1.3G  UN0010               II   1.3G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          with or without burster,                                                                                                                                                              
          expelling charge, or                                                                                                                                                                  
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, incendiary            1.4G  UN0300               II   1.4G.....                      .............  62........  None......    Forbidden        75 kg  A                 24E
          with or without burster,                                                                                                                                                              
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, practice.....         1.4G  UN0362               II   1.4G.....                      .............  62........  None......    Forbidden        75 kg  A                 24E
 ......  Ammunition, practice.....         1.3G  UN0488               II   1.3G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
 ......  Ammunition, proof........         1.4G  UN0363               II   1.4G.....                      .............  62........  None......    Forbidden        75 kg  A                 24E
 ......  Ammunition, rocket, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Warheads, rocket etc.                                                                                                                                                                 
 ......  Ammunition, SA (small      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          arms), see Cartridges                                                                                                                                                                 
          for weapons, etc.                                                                                                                                                                     
 ......  Ammunition, smoke (water-  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          activated contrivances),                                                                                                                                                              
          white phosphorus, with                                                                                                                                                                
          burster, expelling                                                                                                                                                                    
          charge or propelling                                                                                                                                                                  
          charge, see                                                                                                                                                                           
          Contrivances, water-                                                                                                                                                                  
          activated, etc. (UN                                                                                                                                                                   
          0248).                                                                                                                                                                                
 ......  Ammunition, smoke (water-  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          activated contrivances),                                                                                                                                                              
          without white phosphorus                                                                                                                                                              
          or phosphides, with                                                                                                                                                                   
          burster, expelling                                                                                                                                                                    
          charge or propelling                                                                                                                                                                  
          charge, see                                                                                                                                                                           
          Contrivances, water-                                                                                                                                                                  
          activated, etc. (UN                                                                                                                                                                   
          0249).                                                                                                                                                                                
 ......  Ammunition smoke, white           1.2H  UN0245               II   1.2H.....                      .............  62........  None......    Forbidden    Forbidden  E                 8E,
          phosphorus with                                                                                                                                                                   14E,
          burster,expelling                                                                                                                                                                 15E,
          charge, or propelling                                                                                                                                                              17E
          charge.                                                                                                                                                                               
 ......  Ammunition, smoke, white          1.3H  UN0246               II   1.3H.....                      .............  62........  None......    Forbidden    Forbidden  E                 8E,
          phosphorus with burster,                                                                                                                                                          14E,
          expelling charge, or                                                                                                                                                              15E,
          propelling charge.                                                                                                                                                                 17E

[[Page 116]]

                                                                                                                                                                                                
 ......  Ammunition, smoke with or         1.2G  UN0015               II   1.2G, 8..                      .............  62........  None......    Forbidden    Forbidden  E                17E,
          without burster,                                                                                                                                                                   20E
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, smoke with or         1.3G  UN0016               II   1.3G, 8..                      .............  62........  None......    Forbidden    Forbidden  E                17E,
          without burster,                                                                                                                                                                   20E
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, smoke with or         1.4G  UN0303               II   1.4G, 8..                      .............  62........  None......    Forbidden        75 kg  E                17E,
          without burster,                                                                                                                                                                   20E
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, sporting, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cartridges for weapons,                                                                                                                                                               
          etc. (UN 0012; UN 0328;                                                                                                                                                               
          UN 0339).                                                                                                                                                                             
 ......  Ammunition, tear-                  6.1  UN2017               II  6.1, 8....                     None..........  212.......  None......    Forbidden        50 kg  E              13, 40
          producing, non-                                                                                                                                                                       
          explosive, without                                                                                                                                                                    
          burster or expelling                                                                                                                                                                  
          charge, non-fuzed.                                                                                                                                                                    
 ......  Ammunition, tear-                 1.2G  UN0018               II   1.2G, 8,                       .............  62........  None......    Forbidden    Forbidden  E                 20E
          producing with burster,                                          6.1.                                                                                                                 
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, tear-                 1.3G  UN0019               II   1.3G, 8,                       .............  62........  None......    Forbidden    Forbidden  E                17E,
          producing with burster,                                          6.1.                                                                                                              20E
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, tear-                 1.4G  UN0301               II   1.4G, 8,                       .............  62........  None......    Forbidden        75 kg  E                17E,
          producing with burster,                                          6.1.                                                                                                              20E
          expelling charge or                                                                                                                                                                   
          propelling charge.                                                                                                                                                                    
 ......  Ammunition, toxic, non-            6.1  UN2016               II  6.1.......                     None..........  212.......  None......    Forbidden       100 kg  E              13, 40
          explosive, without                                                                                                                                                                    
          burster or expelling                                                                                                                                                                  
          charge, non-fuzed.                                                                                                                                                                    
 ......  Ammunition, toxic (water-  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          activated contrivances),                                                                                                                                                              
          with burster, expelling                                                                                                                                                               
          charge or propelling                                                                                                                                                                  
          charge, see                                                                                                                                                                           
          Contrivances, water-                                                                                                                                                                  
          activated, etc.                                                                                                                                                                       
 ......  Ammunition, toxic with            1.2K  UN0020               II   1.2K, 6.1                      .............  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          burster, expelling                                                                                                                                                                11E,
          charge, or propelling                                                                                                                                                              17E
          charge.                                                                                                                                                                               
 ......  Ammunition, toxic with            1.3K  UN0021               II   1.3K, 6.1                      .............  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          burster, expelling                                                                                                                                                                11E,
          charge, or propelling                                                                                                                                                              17E
          charge.                                                                                                                                                                               
 ......  Amyl acetates............            3  UN1104               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 117]]

                                                                                                                                                                                                
 ......  Amyl acid phosphate......            8  UN2819               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Amyl alcohols............            3  UN1105               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........         B1, B3, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Amyl butyrates...........            3  UN2620               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Amyl chlorides...........            3  UN1107               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Amyl formates............            3  UN1109               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Amyl mercaptans..........            3  UN1111               II  3.........             A3, T8  None..........  202.......  242.......          5 L         60 L  B             95, 102
 ......  n-Amyl methyl ketone.....            3  UN1110               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Amyl nitrate.............            3  UN1112               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Amyl nitrites............            3  UN1113               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  E                  40
 ......  Amylamines...............            3  UN1106               II  3, 8......                 T1  None..........  202.......  243.......          1 L          5 L  B                    
         .........................  ...........  ...................  II  3, 8......                 B1  150...........  203.......  242.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Amyltrichlorosilane......            8  UN1728               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                T8, T26                                                                                         
 ......  Anhydrous ammonia see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ammonia, anhydrous,                                                                                                                                                                   
          liquefied.                                                                                                                                                                            
 ......  Anhydrous hydrofluoric     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          acid, see Hydrogen                                                                                                                                                                    
          fluoride, anhydrous.                                                                                                                                                                  
+......  Aniline..................          6.1  UN1547               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Aniline hydrochloride....          6.1  UN1548               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Aniline oil, see Aniline.  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Anisidines...............          6.1  UN2431               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Anisole..................            3  UN2222               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Anisoyl chloride.........            8  UN1729               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  C                  40
 ......  Anti-freeze, liquid, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Flammable liquids, n.o.s.                                                                                                                                                             
 ......  Antimonous chloride, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Antimony trichloride.                                                                                                                                                                 
 ......  Antimony compounds,                6.1  UN3141               II  6.1.......             35, T7  153...........  203.......  241.......         60 L        220 L  A                    
          inorganic, liquid, n.o.s.                                    I                                                                                                                        
 ......  Antimony compounds,                6.1  UN1549               II  6.1.......                 35  153...........  213.......  240.......       100 kg       200 kg  A                    
          inorganic, solid, n.o.s.                                     I                                                                                                                        
 ......  Antimony lactate.........          6.1  UN1550               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Antimony pentachloride,              8  UN1730               II  8.........        B2, T8, T26  None..........  202.......  242.......          1 L         30 L  C                  40
          liquid.                                                                                                                                                                               
 ......  Antimony pentachloride,              8  UN1731               II  8.........        B2, T8, T27  154...........  202.......  242.......          1 L         30 L  C                  40
          solutions.                                                                                                                                                                            
         .........................  ...........  ...................  II  8.........            T7, T26  154...........  203.......  241.......          5 L         60 L  C                  40
                                                                       I                                                                                                                        
 ......  Antimony pentafluoride...            8  UN1732               II  8, 6.1....   A3, A6, A7, A10,  None..........  202.......  243.......    Forbidden         30 L  D                  40
                                                                                           N3, T12, T26                                                                                         
 ......  Antimony potassium                 6.1  UN1551               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
          tartrate.                                                    I                                                                                                                        
 ......  Antimony powder..........          6.1  UN2871               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Antimony sulfide and a       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chlorate, mixtures of.                                                                                                                                                                
 ......  Antimony sulfide, solid,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Antimony compounds,                                                                                                                                                               
          inorganic, n.o.s.                                                                                                                                                                     
D......  Antimony tribromide,                 8  NA1549               II  8.........                     154...........  212.......  240.......        25 kg       100 kg  A                  13
          solid.                                                                                                                                                                                
D......  Antimony tribromide,                 8  NA1549               II  8.........                 B2  154...........  202.......  242.......          1 L         30 L  C                  13
          solution.                                                                                                                                                                             
 ......  Antimony trichloride,                8  UN1733               II  8.........                 B2  154...........  202.......  242.......          1 L         30 L  C                  40
          liquid.                                                                                                                                                                               
 ......  Antimony trichloride,                8  UN1733               II  8.........               B106  154...........  212.......  240.......        15 kg        50 kg  A                  40
          solid.                                                                                                                                                                                
D......  Antimony trifluoride,                8  NA1549               II  8.........                     154...........  212.......  240.......        25 kg        25 kg  A                  13
          solid.                                                                                                                                                                                

[[Page 118]]

                                                                                                                                                                                                
D......  Antimony trifluoride,                8  NA1549               II  8.........                 B2  154...........  202.......  242.......          1 L         30 L  C                  13
          solution.                                                                                                                                                                             
 ......  Aqua ammonia, see Ammonia  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, etc.                                                                                                                                                                        
 ......  Argon, compressed........          2.2  UN1006                   2.2.......                     306...........  302.......  314, 315..        75 kg       150 kg  A                    
 ......  Argon, refrigerated                2.2  UN1951                   2.2.......                     320...........  316.......  318.......        50 kg       500 kg  B                    
          liquid (cryogenic                                                                                                                                                                     
          liquid).                                                                                                                                                                              
 ......  Arsenic..................          6.1  UN1558               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Arsenic acid, liquid.....          6.1  UN1553                I  6.1.......           T18, T27  None..........  201.......  243.......          1 L         30 L  B                  46
 ......  Arsenic acid, solid......          6.1  UN1554               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Arsenic bromide..........          6.1  UN1555               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A              12, 40
 ......  Arsenic chloride, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Arsenic trichloride.                                                                                                                                                                  
 ......  Arsenic compounds,                 6.1  UN1556                I  6.1.......                     None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, n.o.s.                                                                                                                                                                        
          inorganic, including                                                                                                                                                                  
          arsenates, n.o.s.;                                                                                                                                                                    
          arsenites, n.o.s.;                                                                                                                                                                    
          arsenic sulfides,                                                                                                                                                                     
          n.o.s.; and organic                                                                                                                                                                   
          compounds of arsenic,                                                                                                                                                                 
          n.o.s..                                                                                                                                                                               
         .........................  ...........  ...................  II  6.1.......                     None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  203.......  241.......         60 L        220 L  B                  40
                                                                       I                                                                                                                        
 ......  Arsenic compounds, solid,          6.1  UN1557                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                    
          n.o.s. inorganic,                                                                                                                                                                     
          including arsenates,                                                                                                                                                                  
          n.o.s.; arsenites,                                                                                                                                                                    
          n.o.s.; arsenic                                                                                                                                                                       
          sulfides, n.o.s.; and                                                                                                                                                                 
          organic compounds of                                                                                                                                                                  
          arsenic, n.o.s..                                                                                                                                                                      
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Arsenic pentoxide........          6.1  UN1559               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
D......  Arsenic sulfide..........          6.1  NA1557               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Arsenic sulfide and a        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chlorate, mixtures of.                                                                                                                                                                
 ......  Arsenic trichloride......          6.1  UN1560                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  B                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Arsenic trioxide.........          6.1  UN1561               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
D......  Arsenic trisulfide.......          6.1  NA1557               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Arsenic, white, solid,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Arsenic trioxide.                                                                                                                                                                 
 ......  Arsenical dust...........          6.1  UN1562               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    

[[Page 119]]

                                                                                                                                                                                                
 ......  Arsenical pesticides,                3  UN2760                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Arsenical pesticides,              6.1  UN2994                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Arsenical pesticides,              6.1  UN2993                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic, flammable                                                                                                                                                              
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Arsenical pesticides,              6.1  UN2759                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Arsenious acid, solid,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Arsenic trioxide.                                                                                                                                                                 
 ......  Arsenious and mercuric     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          iodide solution, see                                                                                                                                                                  
          Arsenic compounds,                                                                                                                                                                    
          liquid, n.o.s.                                                                                                                                                                        
 ......  Arsine...................          2.3  UN2188                   2.3, 2.1..                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
 ......  Articles, explosive,              1.6N  UN0486               II   1.6N.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          extremely insensitive or                                                                                                                                                              
          Articles, EEI.                                                                                                                                                                        
 ......  Articles, explosive,              1.4S  UN0349               II   1.4S.....                101  None..........  62........  None......        25 kg       100 kg  A                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.4B  UN0350               II   1.4B.....                101  None..........  62........  None......    Forbidden    Forbidden  A                 24E
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.4C  UN0351               II   1.4C.....                101  None..........  62........  None......    Forbidden    Forbidden  A                 24E
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.4D  UN0352               II   1.4D.....                101  None..........  62........  None......    Forbidden    Forbidden  A                 24E
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.4G  UN0353               II   1.4G.....                101  None..........  62........  None......    Forbidden    Forbidden  A                 24E
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.1L  UN0354               II   1.1L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          n.o.s.                                                                                                                                                                            11E,
                                                                                                                                                                                             17E
 ......  Articles, explosive,              1.2L  UN0355               II   1.2L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          n.o.s.                                                                                                                                                                            11E,
                                                                                                                                                                                             17E
 ......  Articles, explosive,              1.3L  UN0356               II   1.3L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          n.o.s.                                                                                                                                                                            11E,
                                                                                                                                                                                             17E
 ......  Articles, explosive,              1.1C  UN0462               II   1.1C.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.1D  UN0463               II   1.1D.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.1E  UN0464               II   1.1E.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.1F  UN0465               II   1.1F.....                101  None..........  62........  None......    Forbidden    Forbidden  E                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.2C  UN0466               II   1.2C.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.2D  UN0467               II   1.2D.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.2E  UN0468               II   1.2E.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.2F  UN0469               II   1.2F.....                101  None..........  62........  None......    Forbidden    Forbidden  E                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.3C  UN0470               II   1.3C.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.4E  UN0471               II   1.4E.....                101  None..........  62........  None......    Forbidden        75 kg  A                 24E
          n.o.s.                                                                                                                                                                                
 ......  Articles, explosive,              1.4F  UN0472               II   1.4F.....                101  None..........  62........  None......    Forbidden    Forbidden  E                    
          n.o.s.                                                                                                                                                                                

[[Page 120]]

                                                                                                                                                                                                
 ......  Articles, pressurized              2.2  UN3164                   2.2.......                     306...........  302, 304..  None......     No limit     No limit  A                    
          pneumatic or Hydraulic                                                                                                                                                                
          containing non-flammable                                                                                                                                                              
          gas.                                                                                                                                                                                  
 ......  Articles, pyrophoric.....         1.2L  UN0380               II   1.2L.....                     None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
                                                                                                                                                                                            11E,
                                                                                                                                                                                             17E
 ......  Articles, pyrotechnic for         1.1G  UN0428               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          technical purposes.                                                                                                                                                                   
 ......  Articles, pyrotechnic for         1.2G  UN0429               II   1.2G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          technical purposes.                                                                                                                                                                   
 ......  Articles, pyrotechnic for         1.3G  UN0430               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          technical purposes.                                                                                                                                                                   
 ......  Articles, pyrotechnic for         1.4G  UN0431               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          technical purposes.                                                                                                                                                                   
 ......  Articles, pyrotechnic for         1.4S  UN0432               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
          technical purposes.                                                                                                                                                                   
D......  Asbestos.................            9  NA2212               II   9........                     155...........  216.......  240.......       200 kg       200 kg  A              34, 40
                                                                       I                                                                                                                        
 ......  Ascaridole (organic          Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxide).                                                                                                                                                                            
D......  Asphalt, at or above its             3  NA1999               II  3.........                     150...........  203.......  247.......    Forbidden    Forbidden  D                    
          flashpoint.                                                  I                                                                                                                        
D......  Asphalt, cut back, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tars, liquid, etc.                                                                                                                                                                    
 ......  Automobile, motorcycle,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tractor, or other self-                                                                                                                                                               
          propelled vehicle,                                                                                                                                                                    
          engine, or other                                                                                                                                                                      
          mechanical apparatus.                                                                                                                                                                 
          see Engines or Battery                                                                                                                                                                
          etc.                                                                                                                                                                                  
 ......  Azaurolic acid (salt of)     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Azido guanidine picrate      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  5-Azido-1-hydroxy            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetrazole.                                                                                                                                                                            
 ......  Azido hydroxy tetrazole      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (mercury and silver                                                                                                                                                                   
          salts).                                                                                                                                                                               
 ......  3-Azido-1,2-Propylene        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          glycol dinitrate.                                                                                                                                                                     
 ......  Azidodithiocarbonic acid.    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Azidoethyl nitrate.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1-Aziridinylphosphine      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          oxide-(tris), see Tris-                                                                                                                                                               
          (1-aziridinyl) phosphine                                                                                                                                                              
          oxide, solution.                                                                                                                                                                      
         Azodicarbonamide.........          4.1  UN3242               II  4.1.......                 38  151             212         240           Forbidden    Forbidden  D             12, 61,
                                                                                                                                                                                              74
 ......  Azotetrazole (dry).......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         

[[Page 121]]

                                                                                                                                                                                                
 ......  Barium...................          4.3  UN1400               II  4.3.......    A19, B100, B106  151...........  212.......  241.......        15 kg        50 kg  E                    
 ......  Barium alloys, pyrophoric          4.2  UN1854                I  4.2.......                     None..........  181.......  None......    Forbidden    Forbidden  D                    
 ......  Barium azide, dry or              1.1A  UN0224               II   1.1A, 6.1           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          wetted with less than 50                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  Barium azide, wetted with          4.1  UN1571                I  4.1, 6.1..                 A2  None..........  182.......  None......    Forbidden       0.5 kg  D                  28
          not less than 50 percent                                                                                                                                                              
          water, by mass.                                                                                                                                                                       
 ......  Barium bromate...........          5.1  UN2719               II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Barium chlorate..........          5.1  UN1445               II  5.1, 6.1..        A9, N34, T8  None..........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Barium compounds, n.o.s..          6.1  UN1564               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Barium cyanide...........          6.1  UN1565                I  6.1.......           N74, N75  None..........  211.......  242.......         5 kg        50 kg  A              26, 40
 ......  Barium hypochlorite with           5.1  UN2741               II  5.1, 6.1..        A7, A9, N34  152...........  212.......  None......         5 kg        25 kg  B             56, 58,
          more than 22 percent                                                                                                                                                               106
          available chlorine.                                                                                                                                                                   
 ......  Barium nitrate...........          5.1  UN1446               II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  A                    
 ......  Barium oxide.............          6.1  UN1884               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Barium perchlorate.......          5.1  UN1447               II  5.1, 6.1..                 T8  None..........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Barium permanganate......          5.1  UN1448               II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  D             56, 58,
                                                                                                                                                                                             69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
 ......  Barium peroxide..........          5.1  UN1449               II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  A             13, 75,
                                                                                                                                                                                             106
 ......  Barium selenate, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Barium selenite, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
D......  Barium styphnate.........         1.1A  NA0473               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
 ......  Batteries, containing              4.3  UN3292               II  4.3.......                     189...........  189.......  189.......    Forbidden     No limit  A                    
          sodium.                                                                                                                                                                               
 ......  Batteries, dry,                      8  UN3028               II  8.........                     None..........  213.......  None......  25 kg gross       230 kg  A                    
          containing potassium                                         I                                                                                            gross                       
          hydroxide solid,                                                                                                                                                                      
          electric, storage.                                                                                                                                                                    
 ......  Batteries, wet, filled               8  UN2794               II  8.........                     159...........  159.......  159.......  25 kg gross     No limit  A                    
          with acid, electric                                          I                                                                                                                        
          storage.                                                                                                                                                                              
 ......  Batteries, wet, filled               8  UN2795               II  8.........                     159...........  159.......  159.......  25 kg gross     No limit  A                    
          with alkali, electric                                        I                                                                                                                        
          storage.                                                                                                                                                                              
 ......  Batteries, wet, non-                 8  UN2800               II  8.........                     159...........  159.......  159.......     No Limit     No Limit  A                    
          spillable, electric                                          I                                                                                                                        
          storage.                                                                                                                                                                              
 ......  Battery, dry, not subject  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          to the requirements of                                                                                                                                                                
          this subchapter.                                                                                                                                                                      
 ......  Battery fluid, acid......            8  UN2796               II  8.........   A3, A7, B2, B15,  154...........  202.......  242.......          1 L         30 L  B                    
                                                                                       N6, N34, T9, T27                                                                                         
 ......  Battery fluid, alkali....            8  UN2797               II  8.........         B2, N6, T8  154...........  202.......  242.......          1 L         30 L  A                    
 ......  Battery lithium type, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Lithium batteries etc.                                                                                                                                                                
 ......  Battery-powered vehicle              9  UN3171                    9........                     220...........  220.......  None......     No limit     No limit  ............         
          or Battery-powered                                                                                                                                                                    
          equipment.                                                                                                                                                                            

[[Page 122]]

                                                                                                                                                                                                
 ......  Battery, wet, filled with  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          acid or alkali with                                                                                                                                                                   
          automobile (or named                                                                                                                                                                  
          self-propelled vehicle                                                                                                                                                                
          or mechanical equipment                                                                                                                                                               
          containing internal                                                                                                                                                                   
          combustion engine) see                                                                                                                                                                
          Vehicles, self-propelled                                                                                                                                                              
          etc.                                                                                                                                                                                  
 ......  Battery, wet, with         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          wheelchair, see                                                                                                                                                                       
          Wheelchair, electric.                                                                                                                                                                 
+......  Benzaldehyde.............            9  UN1990               II   9........                 T1  155...........  203.......  241.......        100 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Benzene..................            3  UN1114               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Benzene diazonium            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chloride (dry).                                                                                                                                                                       
 ......  Benzene diazonium nitrate    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Benzene phosphorus         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dichloride, see Phenyl                                                                                                                                                                
          phosphorus dichloride.                                                                                                                                                                
 ......  Benzene phosphorus         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          thiodichloride, see                                                                                                                                                                   
          Phenyl phosphorus                                                                                                                                                                     
          thiodichloride.                                                                                                                                                                       
 ......  Benzene sulfonyl chloride            8  UN2225               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Benzene triozonide.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Benzenethiol, see Phenyl   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mercaptan.                                                                                                                                                                            
 ......  Benzidine................          6.1  UN1885               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Benzoic derivative                   3  UN2770                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  E                    
          pesticides, liquid,                                                                                                                                                                   
          flammable, toxic, flash                                                                                                                                                               
          point less than 23                                                                                                                                                                    
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Benzoic derivative                 6.1  UN3004                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Benzoic derivative                 6.1  UN3003                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic, flammable,                                                                                                                                                                     
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....                T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Benzoic derivative                 6.1  UN2769                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          pesticides, solid, toxic.                                                                                                                                                             
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Benzol, see Benzene......  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         

[[Page 123]]

                                                                                                                                                                                                
 ......  Benzonitrile.............          6.1  UN2224               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A              26, 40
 ......  Benzoquinone.............          6.1  UN2587               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Benzotrichloride.........            8  UN2226               II  8.........      B2, B101, T15  154...........  202.......  242.......          1 L         30 L  A                  40
 ......  Benzotrifluoride.........            3  UN2338               II  3.........                 T2  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Benzoxidiazoles (dry)....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Benzoyl azide............    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Benzoyl chloride.........            8  UN1736               II  8.........        B2, T9, T26  154...........  202.......  242.......          1 L         30 L  C                  40
 ......  Benzyl bromide...........          6.1  UN1737               II  6.1, 8....  A3, A7, N33, N34,  None..........  202.......  243.......          1 L         30 L  D              13, 40
                                                                                               T12, T26                                                                                         
 ......  Benzyl chloride..........          6.1  UN1738               II  6.1, 8....  A3, A7, B70, N33,  None..........  202.......  243.......          1 L         30 L  D              13, 40
                                                                                          N42, T12, T26                                                                                         
 ......  Benzyl chloride                    6.1  UN1738               II  6.1, 8....   A3, A7, B8, B11,  None..........  202.......  243.......          1 L         30 L  D              13, 40
          unstabilized.                                                                  N33, N34, N43,                                                                                         
                                                                                               T12, T26                                                                                         
 ......  Benzyl chloroformate.....            8  UN1739                I  8.........   A3, A6, B4, N41,  None..........  201.......  243.......    Forbidden        2.5 L  D                  40
                                                                                               T18, T26                                                                                         
 ......  Benzyl iodide............          6.1  UN2653               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  B              12, 40
 ......  Benzyldimethylamine......            8  UN2619               II  8, 3......             B2, T1  154...........  202.......  243.......          1 L         30 L  A              40, 48
 ......  Benzylidene chloride.....          6.1  UN1886               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  D                  40
 ......  Beryllium compounds,               6.1  UN1566               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Beryllium nitrate........          5.1  UN2464               II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  A                    
 ......  Beryllium, powder........          6.1  UN1567               II  6.1, 4.1..                     None..........  212.......  242.......        15 kg        50 kg  A                    
 ......  Biphenyl triozonide......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Bipyridilium pesticides,             3  UN2782                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  E                    
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Bipyridilium pesticides,           6.1  UN3016                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Bipyridilium pesticides,           6.1  UN3015                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B              21, 40
          liquid, toxic,                                                                                                                                                                        
          flammable, flashpoint                                                                                                                                                                 
          not less than 23 degrees                                                                                                                                                              
          C.                                                                                                                                                                                    
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B              21, 40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A              21, 40
                                                                       I                                                                                                                        
 ......  Bipyridilium pesticides,           6.1  UN2781                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Bis (Aminopropyl)          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          piperazine, see                                                                                                                                                                       
          Corrosive liquid, n.o.s.                                                                                                                                                              
 ......  Bisulfate, aqueous                   8  UN2837               II  8.........   A7, B2, N34, T8,  154...........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                 T26                                                                                         
         .........................  ...........  ...................  II  8.........   A7, N34, T7, T26  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Bisulfites, aqueous                  8  UN2693               II  8.........                 T8  154...........  203.......  241.......          1 L         30 L  A              26, 40
          solutions, n.o.s.                                            I                                                                                                                        

[[Page 124]]

                                                                                                                                                                                                
 ......  Black powder, compressed          1.1D  UN0028               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          or Gunpowder, compressed                                                                                                                                                              
          or Black powder, in                                                                                                                                                                   
          pellets or Gunpowder, in                                                                                                                                                              
          pellets.                                                                                                                                                                              
 ......  Black powder or                   1.1D  UN0027               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                10E,
          Gunpowder, granular or                                                                                                                                                             26E
          as a meal.                                                                                                                                                                            
D......  Black powder for small             4.1  NA0027                I  4.1.......                 70  None..........  170.......  None......    Forbidden    Forbidden  E                    
          arms.                                                                                                                                                                                 
 ......  Blasting agent, n.o.s.,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Explosives, blasting                                                                                                                                                              
          etc.                                                                                                                                                                                  
 ......  Blasting cap assemblies,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Detonator                                                                                                                                                                         
          assemblies, non-                                                                                                                                                                      
          electric, for blasting.                                                                                                                                                               
 ......  Blasting caps, electric,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Detonators, electric                                                                                                                                                              
          for blasting.                                                                                                                                                                         
 ......  Blasting caps, non-        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          electric, see                                                                                                                                                                         
          Detonators, non-                                                                                                                                                                      
          electric, for blasting.                                                                                                                                                               
 ......  Bleaching powder, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Calcium hypochlorite                                                                                                                                                                  
          mixtures, etc.                                                                                                                                                                        
I......  Blue asbestos                        9  UN2212               II   9........                     155...........  216.......  240.......    Forbidden    Forbidden  A              34, 40
          (Crocidolite) or Brown                                                                                                                                                                
          asbestos (amosite,                                                                                                                                                                    
          mysorite).                                                                                                                                                                            
 ......  Bombs, photo-flash.......         1.1F  UN0037               II   1.1F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
 ......  Bombs, photo-flash.......         1.1D  UN0038               II   1.1D.....                      .............  62........  None......    Forbidden    Forbidden  B                    
 ......  Bombs, photo-flash.......         1.2G  UN0039               II   1.2G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
 ......  Bombs, photo-flash.......         1.3G  UN0299               II   1.3G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
 ......  Bombs, smoke, non-                   8  UN2028               II  8.........                     None..........  160.......  None......    Forbidden        50 kg  E                  40
          explosive, with                                                                                                                                                                       
          corrosive liquid,                                                                                                                                                                     
          without initiating                                                                                                                                                                    
          device.                                                                                                                                                                               
 ......  Bombs, with bursting              1.1F  UN0033               II   1.1F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          charge.                                                                                                                                                                               
 ......  Bombs, with bursting              1.1D  UN0034               II   1.1D.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          charge.                                                                                                                                                                               
 ......  Bombs, with bursting              1.2D  UN0035               II   1.2D.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          charge.                                                                                                                                                                               
 ......  Bombs, with bursting              1.2F  UN0291               II   1.2F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          charge.                                                                                                                                                                               
 ......  Bombs with flammable              1.1J  UN0399               II   1.1J.....                      .............  62........  None......    Forbidden    Forbidden  E                 7E,
          liquid, with bursting                                                                                                                                                             16E,
          charge.                                                                                                                                                                            23E
 ......  Bombs with flammable              1.2J  UN0400               II   1.2J.....                      .............  62........  None......    Forbidden    Forbidden  E                 7E,
          liquid, with bursting                                                                                                                                                             16E,
          charge.                                                                                                                                                                            23E
 ......  Boosters with detonator..         1.1B  UN0225               II   1.1B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
 ......  Boosters with detonator..         1.2B  UN0268               II   1.2B.....                     None..........  62........  None......    Forbidden    Forbidden  E              1E, 7E

[[Page 125]]

                                                                                                                                                                                                
 ......  Boosters, without                 1.1D  UN0042               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          detonator.                                                                                                                                                                            
 ......  Boosters, without                 1.2D  UN0283               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          detonator.                                                                                                                                                                            
 ......  Borate and chlorate        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixtures, see Chlorate                                                                                                                                                                
          and borate mixtures.                                                                                                                                                                  
 ......  Borneol..................          4.1  UN1312               II  4.1.......                 A1  None..........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
+......  Boron tribromide.........            8  UN2692                I  8, 6.1....     2, A3, A7, B9,  None..........  227.......  244.......    Forbidden        2.5 L  C                  12
                                                                                         B14, B32, B74,                                                                                         
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Boron trichloride........          2.3  UN1741                   2.3, 8....         3, B9, B14  None..........  304.......  314.......    Forbidden    Forbidden  D              25, 40
 ......  Boron trifluoride,                 2.3  UN1008                   2.3.......         2, B9, B14  None..........  302.......  314, 315..    Forbidden    Forbidden  D                  40
          compressed..                                                                                                                                                                          
 ......  Boron trifluoride acetic             8  UN1742               II  8.........    B2, B6, T9, T27  154...........  202.......  242.......          1 L         30 L  A                    
          acid complex.                                                                                                                                                                         
 ......  Boron trifluoride diethyl            8  UN2604                I  8, 3......       A19, T8, T26  None..........  201.......  243.......        0.5 L        2.5 L  D                  40
          etherate.                                                                                                                                                                             
 ......  Boron trifluoride                    8  UN2851               II  8.........            T9, T27  154...........  212.......  240.......        15 kg        50 kg  B             12, 40,
          dihydrate.                                                                                                                                                                            
 ......  Boron trifluoride                  4.3  UN2965                I  4.3, 8, 3.      A19, T12, T26  None..........  201.......  243.......    Forbidden          1 L  D             21, 28,
          dimethyl etherate.                                                                                                                                                             40, 49,
                                                                                                                                                                                             100
 ......  Boron trifluoride                    8  UN1743               II  8.........        B2, T9, T27  154...........  202.......  242.......          1 L         30 L  A                    
          propionic acid complex.                                                                                                                                                               
 ......  Box toe gum, see           ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitrocellulose etc.                                                                                                                                                                   
 ......  Bromates, inorganic,               5.1  UN3213               II  5.1.......                 T8  152...........  202.......  242.......          1 L          5 L  B             56, 58,
          aqueous solution, n.o.s.                                                                                                                                                           106
 ......  Bromates, inorganic,               5.1  UN1450               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
          n.o.s.                                                                                                                                                                             106
 ......  Bromine azide............    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
+......  Bromine or Bromine                   8  UN1744                I  8, 6.1....     1, A3, A6, B9,  None..........  226.......  249.......    Forbidden        2.5 L  D             12, 40,
          solutions.                                                                     B64, B85, N34,                                                                                  66, 74,
                                                                                          N43, T18, T41                                                                                   89, 90
 ......  Bromine chloride.........          2.3  UN2901                   2.3, 8,            2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D             40, 89,
                                                                           5.1.                                                                                                               90
+......  Bromine pentafluoride....          5.1  UN1745                I  5.1, 6.1,    1, B9, B14, B30,  None..........  228.......  244.......    Forbidden    Forbidden  D             25, 40,
                                                                           8.            B72, T38, T43,                                                                                   66, 90
                                                                                                    T44                                                                                         
+......  Bromine trifluoride......          5.1  UN1746                I  5.1, 6.1,    2, B9, B14, B32,  None..........  228.......  244.......    Forbidden    Forbidden  D             25, 40,
                                                                           8.            B74, T38, T43,                                                                                   66, 90
                                                                                                    T45                                                                                         
 ......  4-Bromo-1,2-                 Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dinitrobenzene.                                                                                                                                                                       
 ......  4-Bromo-1,2-                 Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dinitrobenzene (unstable                                                                                                                                                              
          at 59 degrees C.).                                                                                                                                                                    
 ......  1-Bromo-3-methylbutane...            3  UN2341               II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  1-Bromo-3-nitrobenzene       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (unstable at 56 degrees                                                                                                                                                               
          C).                                                                                                                                                                                   
 ......  2-Bromo-2-nitropropane-            4.1  UN3241               II  4.1.......                 46  151...........  213.......  None......        25 kg        50 kg  C             12, 25,
          1,3-diol.                                                    I                                                                                                                      40
 ......  Bromoacetic acid, solid..            8  UN1938               II  8.........        A7, N34, T9  154...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Bromoacetic acid,                    8  UN1938               II  8.........             B2, T9  154...........  202.......  242.......          1 L         30 L  A                  40
          solution.                                                                                                                                                                             
+......  Bromoacetone.............          6.1  UN1569               II  6.1,3.....                  2  None..........  193.......  245.......    Forbidden    Forbidden  D                  40
 ......  Bromoacetyl bromide......            8  UN2513               II  8.........        B2, T9, T26  154...........  202.......  242.......          1 L         30 L  C                  40
 ......  Bromobenzene.............            3  UN2514               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 126]]

                                                                                                                                                                                                
 ......  Bromobenzyl cyanides,              6.1  UN1694                I  6.1.......                T18  None..........  201.......  243.......    Forbidden         30 L  D              12, 40
          liquid.                                                                                                                                                                               
 ......  Bromobenzyl cyanides,              6.1  UN1694                I  6.1.......                T18  None..........  211.......  242.......    Forbidden        50 kg  D              12, 40
          solid.                                                                                                                                                                                
 ......  1-Bromobutane............            3  UN1126               II  3.........                 T1  150...........  202.......  242.......           5L          60L  B                  40
 ......  2-Bromobutane............            3  UN2339               II  3.........             B1, T1  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Bromochloromethane.......          6.1  UN1887               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  2-Bromoethyl ethyl ether.            3  UN2340               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Bromoform................          6.1  UN2515               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A              12, 40
                                                                       I                                                                                                                        
 ......  Bromomethylpropanes......            3  UN2342               II  3.........            T7, T30  150...........  202.......  242.......          5 L         60 L  B                    
 ......  2-Bromopentane...........            3  UN2343               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  2-Bromopropanes..........            3  UN2344               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  3-Bromopropyne...........            3  UN2345               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  D                  40
 ......  Bromosilane..............    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Bromotoluene-alpha, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Benzyl bromide.                                                                                                                                                                       
 ......  Bromotrifluoroethylene...          2.1  UN2419                   2.1.......                     None..........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Bromotrifluoromethane or           2.2  UN1009                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas, R 13B1..                                                                                                                                                             
 ......  Brucine..................          6.1  UN1570                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                    
 ......  Bursters, explosive......         1.1D  UN0043               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Butadienes, inhibited....          2.1  UN1010                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Butane see also Petroleum          2.1  UN1011                   2.1.......                 19  306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          gases, liquefied.                                                                                                                                                                     
 ......  Butane, butane mixtures    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          and mixtures having                                                                                                                                                                   
          similar properties in                                                                                                                                                                 
          cartridges each not                                                                                                                                                                   
          exceeding 500 grams, see                                                                                                                                                              
          Receptacles, etc.                                                                                                                                                                     
 ......  Butanedione..............            3  UN2346               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  1,2,4-Butanetriol            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trinitrate.                                                                                                                                                                           
 ......  Butanols.................            3  UN1120               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  tert-Butoxycarbonyl azide    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Butyl acetates...........            3  UN1123               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Butyl acid phosphate.....            8  UN1718               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Butyl acrylates,                     3  UN2348               II  3.........        B1, T8, T31  150...........  203.......  242.......         60 L        220 L  A                    
          inhibited.                                                   I                                                                                                                        
 ......  Butyl alcohols, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Butanols.                                                                                                                                                                             
 ......  Butyl benzenes...........            3  UN2709               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 127]]

                                                                                                                                                                                                
 ......  n-Butyl bromide, see 1-    ...........  ...................  ..  ..........  .................  ..............  ..........  ..........  ...........  ...........  ............  .......
          Bromobutane.                                                                                                                                                                          
 ......  n-Butyl chloride, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorobutanes.                                                                                                                                                                        
D......  sec-Butyl chloroformate..          6.1  NA2742                I  6.1, 3, 8.   2, B9, B14, B32,  None..........  227.......  244.......          1 L         30 L  A             12, 13,
                                                                                         B74, T38, T43,                                                                                  22, 25,
                                                                                                    T45                                                                                  40, 48,
                                                                                                                                                                                             100
 ......  n-Butyl chloroformate....          6.1  UN2743                I  6.1, 8, 3.   2, B9, B14, B32,  None..........  227.......  244.......          1 L         30 L  A             12, 13,
                                                                                         B74, T38, T43,                                                                                  21, 25,
                                                                                                    T45                                                                                  40, 100
 ......  Butyl ethers, see Dibutyl  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ethers.                                                                                                                                                                               
 ......  Butyl ethyl ether, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethyl butyl ether.                                                                                                                                                                    
 ......  n-Butyl formate..........            3  UN1128               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  tert-Butyl hydroperoxide,    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          with more than 90                                                                                                                                                                     
          percent with water.                                                                                                                                                                   
 ......  tert-Butyl hypochlorite..          4.2  UN3255                I  4.2, 8....                     None..........  211.......  243.......    Forbidden    Forbidden  D                    
 ......  N-n-Butyl imidazole......          6.1  UN2690               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                    
 ......  tert-Butyl isocyanate....          6.1  UN2484                I  6.1, 3....    1, A7, B9, B14,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B30, B72, T38,                                                                                         
                                                                                               T43, T44                                                                                         
 ......  n-Butyl isocyanate.......          6.1  UN2485                I  6.1, 3....    2, A7, B9, B14,  None..........  227.......  244.......    Forbidden         30 L  D                  40
                                                                                         B32, B74, B77,                                                                                         
                                                                                          T38, T43, T45                                                                                         
 ......  Butyl mercaptans.........            3  UN2347               II  3.........             A3, T8  150...........  202.......  242.......          5 L         60 L  D              26, 95
 ......  n-Butyl methacrylate,                3  UN2227               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          inhibited..                                                  I                                                                                                                        
 ......  Butyl methyl ether.......            3  UN2350               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Butyl nitrites...........            3  UN2351                I  3.........                 T8  150...........  201.......  243.......          1 L         30 L  E                  40
         .........................  ...........  ...................  II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  3.........             B1, T8  150...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  tert-Butyl peroxyacetate,    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          with more than 76                                                                                                                                                                     
          percent in solution.                                                                                                                                                                  
 ......  n-Butyl                      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxydicarbonate, with                                                                                                                                                               
          more than 52 percent in                                                                                                                                                               
          solution.                                                                                                                                                                             
 ......  tert-Butyl                   Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxyisobutyrate, with                                                                                                                                                               
          more than 77 percent in                                                                                                                                                               
          solution.                                                                                                                                                                             
 ......  Butyl phosphoric acid,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Butyl acid phosphate.                                                                                                                                                             
         Butyl propionates........            3  UN1914               II  3.........              B1,T1  150...........  203.......  242.......         60 L        220 L  A             .......
                                                                       I                                                                                                                        
 ......  5-tert-Butyl-2,4,6-                4.1  UN2956               II  4.1.......                     None..........  214.......  None......    Forbidden    Forbidden  D                  12
          trinitro-m-xylene or                                         I                                                                                                                        
          Musk xylene.                                                                                                                                                                          
 ......  Butyl vinyl ether,                   3  UN2352               II  3.........           B101, T7  150...........  202.......  242.......          5 L         60 L  B                  40
          inhibited.                                                                                                                                                                            
 ......  n-Butylamine.............            3  UN1125               II  3, 8......           B101, T8  None..........  202.......  242.......          1 L          5 L  B                  40
 ......  N-Butylaniline...........          6.1  UN2738               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                    
 ......  tert-                              6.1  UN2747               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A             12, 13,
          Butylcyclohexylchlorofor                                     I                                                                                                                      25
          mate.                                                                                                                                                                                 
 ......  Butylene see also                  2.1  UN1012                   2.1.......                 19  None..........  304.......  314, 315..    Forbidden       150 kg  E                  40
          Petroleum gases,                                                                                                                                                                      
          liquefied.                                                                                                                                                                            
 ......  1,2-Butylene oxide,                  3  UN3022               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                  49
          stabilized.                                                                                                                                                                           
 ......  Butyltoluenes............          6.1  UN2667               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 128]]

                                                                                                                                                                                                
 ......  Butyltrichlorosilane.....            8  UN1747               II  8, 3......   A7, B2, B6, N34,  None..........  202.......  243.......    Forbidden         30 L  C                  40
                                                                                                T8, T26                                                                                         
 ......  1,4-Butynediol...........          6.1  UN2716               II  6.1.......                 A1  None..........  213.......  240.......       100 kg       200 kg  A              61, 70
                                                                       I                                                                                                                        
 ......  Butyraldehyde............            3  UN1129               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Butyraldoxime............            3  UN2840               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Butyric acid.............            8  UN2820               II  8.........                 T1  154...........  203.......  241.......          5 L         60 L  A                  12
                                                                       I                                                                                                                        
 ......  Butyric anhydride........            8  UN2739               II  8.........                 T2  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Butyronitrile............            3  UN2411               II  3, 6.1....                T14  None..........  202.......  243.......          1 L         60 L  E                  40
 ......  Butyryl chloride.........            3  UN2353               II  3, 8......      B100, T9, T26  None..........  202.......  243.......          1 L          5 L  C                  40
 ......  Cacodylic acid...........          6.1  UN1572               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  E                  26
 ......  Cadmium compounds........          6.1  UN2570                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Caesium hydroxide........            8  UN2682               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Caesium hydroxide                    8  UN2681               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Calcium..................          4.3  UN1401               II  4.3.......         B101, B106  151...........  212.......  241.......        15 kg        50 kg  E                    
 ......  Calcium arsenate.........          6.1  UN1573               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Calcium arsenate and               6.1  UN1574               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
          calcium arsenite,                                                                                                                                                                     
          mixtures, solid.                                                                                                                                                                      
D......  Calcium arsenite, solid..          6.1  NA1574               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Calcium bisulfite          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see                                                                                                                                                                         
          Bisulfites, inorganic,                                                                                                                                                                
          aqueous solutions, n.o.s.                                                                                                                                                             
 ......  Calcium carbide..........          4.3  UN1402                I  4.3.......  A1, A8, B55, B59,  None..........  211.......  242.......    Forbidden        15 kg  B                    
                                                                                        B101, B106, N34                                                                                         
         .........................  ...........  ...................  II  4.3.......  A1, A8, B55, B59,  151...........  212.......  241.......        15 kg        50 kg  B                    
                                                                                        B101, B106, N34                                                                                         
 ......  Calcium chlorate.........          5.1  UN1452               II  5.1.......                N34  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Calcium chlorate aqueous           5.1  UN2429               II  5.1.......        A2, N41, T8  152...........  202.......  242.......          1 L          5 L  B             56, 58,
          solution.                                                                                                                                                                          106
         .........................  ...........  ...................  II  5.1.......        A2, N41, T8  152...........  203.......  241.......         2.5L         30 L  B             56, 68,
                                                                       I                                                                                                                     106
 ......  Calcium chlorite.........          5.1  UN1453               II  5.1.......            A9, N34  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Calcium cyanamide with             4.3  UN1403               II  4.3.......      A1, A19, B105  151...........  213.......  241.......        25 kg       100 kg  A                    
          more than 0.1 percent of                                     I                                                                                                                        
          calcium carbide.                                                                                                                                                                      
 ......  Calcium cyanide..........          6.1  UN1575                I  6.1.......           N79, N80  None..........  211.......  242.......         5 kg        50 kg  A              26, 40

[[Page 129]]

                                                                                                                                                                                                
 ......  Calcium dithionite or              4.2  UN1923               II  4.2.......           A19, A20  None..........  212.......  241.......        15 kg        50 kg  E                  13
          Calcium hydrosulfite.                                                                                                                                                                 
 ......  Calcium hydride..........          4.3  UN1404                I  4.3.......     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Calcium hydrosulfite, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Calcium dithionite.                                                                                                                                                                   
 ......  Calcium hypochlorite, dry          5.1  UN1748               II  5.1.......        A7, A9, N34  152...........  212.......  None......         5 kg        25 kg  D             48, 56,
          or Calcium hypochlorite                                                                                                                                                        58, 69,
          mixtures dry with more                                                                                                                                                            106,
          than 39 percent                                                                                                                                                                    118
          available chlorine (8.8                                                                                                                                                               
          percent available                                                                                                                                                                     
          oxygen).                                                                                                                                                                              
 ......  Calcium hypochlorite,              5.1  UN2880               II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  A             50, 56,
          hydrated or Calcium                                                                                                                                                            58, 69,
          hypochlorite, hydrated                                                                                                                                                             106
          mixtures, with not less                                                                                                                                                               
          than 5.5 percent but not                                                                                                                                                              
          more than 10 percent                                                                                                                                                                  
          water.                                                                                                                                                                                
 ......  Calcium hypochlorite               5.1  UN2208               II  5.1.......     A1, A29, B103,  152...........  213.......  240.......        25 kg       100 kg  A             56, 58,
          mixtures, dry, with more                                     I                            N34                                                                                  69, 106
          than 10 percent but not                                                                                                                                                               
          more than 39 percent                                                                                                                                                                  
          available chlorine.                                                                                                                                                                   
 ......  Calcium manganese silicon          4.3  UN2844               II  4.3.......     A1, A19, B105,  151...........  213.......  241.......        25 kg       100 kg  A             85, 103
                                                                       I                           B106                                                                                         
 ......  Calcium nitrate..........          5.1  UN1454               II  5.1.......                 34  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
A......  Calcium oxide............            8  UN1910               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Calcium perchlorate......          5.1  UN1455               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Calcium permanganate.....          5.1  UN1456               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  D             56, 58,
                                                                                                                                                                                             69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
 ......  Calcium peroxide.........          5.1  UN1457               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             13, 75,
                                                                                                                                                                                             106
 ......  Calcium phosphide........          4.3  UN1360                I  4.3, 6.1..     A8, A19, B100,  None..........  211.......  242.......    Forbidden        15 kg  E              40, 85
                                                                                                    N40                                                                                         
 ......  Calcium, pyrophoric or             4.2  UN1855                I  4.2.......                     None..........  187.......  None......    Forbidden    Forbidden  D                    
          Calcium alloys,                                                                                                                                                                       
          pyrophoric.                                                                                                                                                                           
 ......  Calcium resinate.........          4.1  UN1313               II  4.1.......            A1, A19  None..........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Calcium resinate, fused..          4.1  UN1314               II  4.1.......            A1, A19  None..........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Calcium selenate, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Calcium silicide.........          4.3  UN1405               II  4.3.......    A19, B105, B106  151...........  212.......  241.......        15 kg        50 kg  B             85, 103
         .........................  ...........  ...................  II  4.3.......     A1, A19, B106,  151...........  213.......  241.......        25 kg       100 kg  B             85, 103
                                                                       I                           B108                                                                                         
 ......  Camphor oil..............            3  UN1130               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Camphor, synthetic.......          4.1  UN2717               II  4.1.......                 A1  None..........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Cannon primers, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Primers, tubular.                                                                                                                                                                     
 ......  Caproic acid.............            8  UN2829               II  8.........                 T1  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Caps, blasting, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Detonators, etc.                                                                                                                                                                      

[[Page 130]]

                                                                                                                                                                                                
 ......  Carbamate pesticides,                3  UN2758                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Carbamate pesticides,              6.1  UN2992                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Carbamate pesticides,              6.1  UN2991                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic,                                                                                                                                                                        
          flammable, flash point                                                                                                                                                                
          not less than 23 degrees                                                                                                                                                              
          C.                                                                                                                                                                                    
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Carbamate pesticides,              6.1  UN2757                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Carbolic acid, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Phenol, solid or Phenol,                                                                                                                                                              
          molten.                                                                                                                                                                               
 ......  Carbolic acid solutions,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Phenol solutions.                                                                                                                                                                 
I......  Carbon, activated........          4.2  UN1362               II  4.2.......                     None..........  213.......  241.......       0.5 kg       0.5 kg  A                  12
                                                                       I                                                                                                                        
I......  Carbon, animal or                  4.2  UN1361               II  4.2.......                     None..........  212.......  242.......    Forbidden    Forbidden  A                  12
          vegetable origin.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.2.......                     None..........  213.......  241.......    Forbidden    Forbidden  A                  12
                                                                       I                                                                                                                        
 ......  Carbon bisulfide, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Carbon disulfide.                                                                                                                                                                     
 ......  Carbon dioxide...........          2.2  UN1013                   2.2.......                     306...........  302, 304..  302, 314,         75 kg       150 kg  A                    
                                                                                                                                      315.                                                      
 ......  Carbon dioxide and                 2.2  UN1015                   2.2.......                     306...........  None......  314, 315..        75 kg       150 kg  A                    
          nitrous oxide mixtures.                                                                                                                                                               
 ......  Carbon dioxide and oxygen          2.2  UN1014               ..  2.2, 5.1..                 77  306...........  304.......  314, 315..        75 kg       150 kg  A             .......
          mixtures, compressed.                                                                                                                                                                 
 ......  Carbon dioxide,                    2.2  UN2187                   2.2.......  .................  306...........  304.......  314, 315..        50 kg       500 kg  B                    
          refrigerated liquid.                                                                                                                                                                  
AW.....  Carbon dioxide, solid or             9  UN1845               II  None......  .................  217...........  217.......  240.......       200 kg       200 kg  C                  40
          Dry ice.                                                     I                                                                                                                        
 ......  Carbon disulfide.........            3  UN1131                I  3, 6.1....     B16, T18, T26,  None..........  201.......  243.......    Forbidden    Forbidden  D             18, 40,
                                                                                                    T29                                                                                      115
 ......  Carbon monoxide,                   2.3  UN1016                   2.3, 2.1..                  4  None..........  302.......  314, 315..    Forbidden        25 kg  D                  40
          compressed..                                                                                                                                                                          

[[Page 131]]

                                                                                                                                                                                                
 ......  Carbon monoxide and                2.3  UN2600                   2.3, 2.1..                  6  None..........  302.......  302.......    Forbidden    Forbidden  D                  40
          hydrogen mixture,                                                                                                                                                                     
          compressed..                                                                                                                                                                          
D......  Carbon monoxide,                   2.3  NA9202                   2.3, 2.1..                  4  None..........  316.......  318.......    Forbidden    Forbidden  D                    
          refrigerated liquid                                                                                                                                                                   
          (cryogenic liquid).                                                                                                                                                                   
 ......  Carbon tetrabromide......          6.1  UN2516               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  25
                                                                       I                                                                                                                        
 ......  Carbon tetrachloride.....          6.1  UN1846               II  6.1.......            N36, T8  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Carbonyl chloride, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Phosgene.                                                                                                                                                                             
 ......  Carbonyl fluoride,                 2.3  UN2417                   2.3, 8....                  2  None..........  302.......  None......    Forbidden    Forbidden  D                  40
          compressed.                                                                                                                                                                           
 ......  Carbonyl sulfide.........          2.3  UN2204                   2.3, 2.1..             3, B14  None..........  304.......  314, 315..    Forbidden        25 kg  D                  40
 ......  Cartridge cases, empty     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          primed, see Cases,                                                                                                                                                                    
          cartridge, empty, with                                                                                                                                                                
          primer.                                                                                                                                                                               
 ......  Cartridges, actuating,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          for aircraft ejector                                                                                                                                                                  
          seat catapult, fire                                                                                                                                                                   
          extinguisher, canopy                                                                                                                                                                  
          removal or apparatus,                                                                                                                                                                 
          see Cartridges, power                                                                                                                                                                 
          device.                                                                                                                                                                               
 ......  Cartridges, explosive,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Charges, demolition.                                                                                                                                                              
 ......  Cartridges, flash........         1.1G  UN0049               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Cartridges, flash........         1.3G  UN0050               II   1.3G.....                     None..........  62........  None......    Forbidden        75 kg  B                    
 ......  Cartridges for weapons,           1.1C  UN0326               II   1.1C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          blank.                                                                                                                                                                                
 ......  Cartridges for weapons,           1.2C  UN0413               II   1.2C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          blank.                                                                                                                                                                                
 ......  Cartridges for weapons,           1.4S  UN0014               II  None......  .................  63............  62........  None......        25 kg       100 kg  A                    
          blank or Cartridges,                                                                                                                                                                  
          small arms, blank.                                                                                                                                                                    
 ......  Cartridges for weapons,           1.3C  UN0327               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          blank or Cartridges,                                                                                                                                                                  
          small arms, blank.                                                                                                                                                                    
 ......  Cartridges for weapons,           1.4C  UN0338               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          blank or Cartridges,                                                                                                                                                                  
          small arms, blank.                                                                                                                                                                    
 ......  Cartridges for weapons,           1.2C  UN0328               II   1.2C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          inert projectile.                                                                                                                                                                     
 ......  Cartridges for weapons,           1.4S  UN0012               II  None......  .................  63............  62........  None......        25 kg       100 kg  A                    
          inert projectile or                                                                                                                                                                   
          Cartridges, small arms.                                                                                                                                                               
 ......  Cartridges for weapons,           1.4C  UN0339               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  B                    
          inert projectile or                                                                                                                                                                   
          Cartridges, small arms.                                                                                                                                                               
 ......  Cartridges for weapons,           1.3C  UN0417               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          inert projectile or                                                                                                                                                                   
          Cartridges, small arms.                                                                                                                                                               
 ......  Cartridges for weapons,           1.1F  UN0005               II   1.1F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          with bursting charge.                                                                                                                                                                 
 ......  Cartridges for weapons,           1.1E  UN0006               II   1.1E.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          with bursting charge.                                                                                                                                                                 
 ......  Cartridges for weapons,           1.2F  UN0007               II   1.2F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          with bursting charge.                                                                                                                                                                 
 ......  Cartridges for weapons,           1.2E  UN0321               II   1.2E.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          with bursting charge.                                                                                                                                                                 
 ......  Cartridges for weapons,           1.4F  UN0348               II   1.4F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          with bursting charge.                                                                                                                                                                 
 ......  Cartridges for weapons,           1.4E  UN0412               II   1.4E.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          with bursting charge.                                                                                                                                                                 

[[Page 132]]

                                                                                                                                                                                                
 ......  Cartridges, oil well.....         1.3C  UN0277               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Cartridges, oil well.....         1.4C  UN0278               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Cartridges, power device.         1.3C  UN0275               II   1.3C.....                     None..........  62........  None......    Forbidden        75 kg  B                    
 ......  Cartridges, power device.         1.4C  UN0276               II   1.4C.....                110  None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Cartridges, power device.         1.4S  UN0323               II   1.4S.....               110,  63............  62........  None......        25 kg       100 kg  A                    
 ......  Cartridges, power device.         1.2C  UN0381               II   1.2C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Cartridges, safety,        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          blank, see Cartridges                                                                                                                                                                 
          for weapons, blank (UN                                                                                                                                                                
          0014).                                                                                                                                                                                
 ......  Cartridges, safety, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cartridges for weapons,                                                                                                                                                               
          other than blank or                                                                                                                                                                   
          Cartridges, power device                                                                                                                                                              
          (UN 0323).                                                                                                                                                                            
 ......  Cartridges, signal.......         1.3G  UN0054               II   1.3G.....                     None..........  62........  None......    Forbidden        75 kg  B                    
 ......  Cartridges, signal.......         1.4G  UN0312               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Cartridges, signal.......         1.4S  UN0405               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
D......  Cartridges, small arms...        ORM-D  ...................      None......  .................  63............  None......  None......  30 kg gross  30 kg gross  A                    
 ......  Cartridges, sporting, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cartridges for weapons,                                                                                                                                                               
          other than blank.                                                                                                                                                                     
 ......  Cartridges, starter, jet   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          engine, see Cartridges,                                                                                                                                                               
          power device.                                                                                                                                                                         
 ......  Cases, cartridge, empty           1.4S  UN0055               II   1.4S.....                 50  None..........  62........  None......        25 kg       100 kg  A                    
          with primer.                                                                                                                                                                          
 ......  Cases, cartridges, empty          1.4C  UN0379               II   1.4C.....                 50  None..........  62........  None......    Forbidden        75 kg  A                 24E
          with primer.                                                                                                                                                                          
 ......  Cases, combustible,               1.4C  UN0446               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          empty, without primer.                                                                                                                                                                
 ......  Cases, combustible,               1.3C  UN0447               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          empty, without primer.                                                                                                                                                                
 ......  Casinghead gasoline see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Gasoline.                                                                                                                                                                             
AW.....  Castor beans or Castor               9  UN2969               II  None......                     155...........  204.......  240.......     No limit     No limit  E              34, 40
          meal or Castor pomace or                                                                                                                                                              
          Castor flake.                                                                                                                                                                         
 ......  Caustic alkali liquids,              8  UN1719               II  8.........            B2, T14  154...........  202.......  242.......          1 L         30 L  A                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Caustic potash, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Potassium hydroxide etc.                                                                                                                                                              
 ......  Caustic soda, (etc.) see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sodium hydroxide etc.                                                                                                                                                                 
 ......  Cells, containing sodium.          4.3  UN3292               II  4.3.......                     189...........  189.......  189.......        25 kg     No limit  A                    
 ......  Celluloid, in block,               4.1  UN2000               II  4.1.......                     None..........  213.......  240.......        25 kg       100 kg  A                    
          rods, rolls, sheets,                                         I                                                                                                                        
          tubes, etc., except                                                                                                                                                                   
          scrap.                                                                                                                                                                                
 ......  Celluloid, scrap.........          4.2  UN2002               II  4.2.......                     None..........  213.......  241.......    Forbidden    Forbidden  D                    
                                                                       I                                                                                                                        

[[Page 133]]

                                                                                                                                                                                                
 ......  Cement, see Adhesives      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          containing flammable                                                                                                                                                                  
          liquid.                                                                                                                                                                               
 ......  Cerium, slabs, ingots, or          4.1  UN1333               II  4.1.......                N34  None..........  212.......  240.......        15 kg        50 kg  A              74, 91
          rods.                                                                                                                                                                                 
 ......  Cerium, turnings or                4.3  UN3078               II  4.3.......     A1, B106, B109  151...........  212.......  242.......        15 kg        50 kg  E                    
          gritty powder.                                                                                                                                                                        
 ......  Cesium or Caesium........          4.3  UN1407                I  4.3.......    A19, B100, N34,  None..........  211.......  242.......    Forbidden        15 kg  D                    
                                                                                                    N40                                                                                         
 ......  Cesium nitrate or Caesium          5.1  UN1451               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
          nitrate.                                                     I                                                                                                                        
D......  Charcoal briquettes,               4.2  NA1361               II  4.2.......                     151...........  213.......  240.......        25 kg       100 kg  A                  12
          shell, screenings, wood,                                     I                                                                                                                        
          etc.                                                                                                                                                                                  
 ......  Charges, bursting,                1.1D  UN0457               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          plastics bonded.                                                                                                                                                                      
 ......  Charges, bursting,                1.2D  UN0458               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          plastics bonded.                                                                                                                                                                      
 ......  Charges, bursting,                1.4D  UN0459               II   1.4D.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          plastics bonded.                                                                                                                                                                      
 ......  Charges, bursting,                1.4S  UN0460               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
          plastics bonded.                                                                                                                                                                      
 ......  Charges, demolition......         1.1D  UN0048               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Charges, depth...........         1.1D  UN0056               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              3E, 7E
 ......  Charges, expelling,        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          explosive, for fire                                                                                                                                                                   
          extinguishers, see                                                                                                                                                                    
          Cartridges, power device.                                                                                                                                                             
 ......  Charges, explosive,               1.1D  UN0442               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          commercial without                                                                                                                                                                    
          detonator.                                                                                                                                                                            
 ......  Charges, explosive,               1.2D  UN0443               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          commercial without                                                                                                                                                                    
          detonator.                                                                                                                                                                            
 ......  Charges, explosive,               1.4D  UN0444               II   1.4D.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          commercial without                                                                                                                                                                    
          detonator.                                                                                                                                                                            
 ......  Charges, explosive,               1.4S  UN0445               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
          commercial without                                                                                                                                                                    
          detonator.                                                                                                                                                                            
 ......  Charges, propelling......         1.1C  UN0271               II   1.1C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Charges, propelling......         1.3C  UN0272               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Charges, propelling......         1.2C  UN0415               II   1.2C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Charges, propelling......         1.4C  UN0491               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  A              1E, 5E
 ......  Charges, propelling, for          1.3C  UN0242               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          cannon.                                                                                                                                                                               
 ......  Charges, propelling, for          1.1C  UN0279               II   1.1C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          cannon.                                                                                                                                                                               
 ......  Charges, propelling, for          1.2C  UN0414               II   1.2C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          cannon.                                                                                                                                                                               
 ......  Charges, shaped,                  1.1D  UN0059               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          commercial, without                                                                                                                                                                   
          detonator.                                                                                                                                                                            
 ......  Charges, shaped,                  1.2D  UN0439               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          commercial without                                                                                                                                                                    
          detonator.                                                                                                                                                                            
 ......  Charges, shaped,                  1.4D  UN0440               II   1.4D.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          commercial without                                                                                                                                                                    
          detonator.                                                                                                                                                                            
 ......  Charges, shaped,                  1.4S  UN0441               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
          commercial without                                                                                                                                                                    
          detonator.                                                                                                                                                                            
 ......  Charges, shaped,                  1.4D  UN0237               II   1.4D.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          flexible, linear.                                                                                                                                                                     
 ......  Charges, shaped,                  1.1D  UN0288               II   1.1D.....                101  None..........  62........  None......    Forbidden    Forbidden  B                    
          flexible, linear.                                                                                                                                                                     
 ......  Charges, supplementary            1.1D  UN0060               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          explosive.                                                                                                                                                                            
D......  Chemical kit.............            8  NA1760               II  8.........                     154...........  161.......  None......          1 L         30 L  B                  40
 ......  Chemical kits or First               9  UN3316               ..  9.........                 15  None..........  None......  None......        10 kg        10 kg  A             .......
          aid kits (containing                                                                                                                                                                  
          hazardous materials).                                                                                                                                                                 
 ......  Chloral, anhydrous,                6.1  UN2075               II  6.1.......          B101, T14  None..........  202.......  243.......          5 L         60 L  D                  40
          inhibited.                                                                                                                                                                            
 ......  Chlorate and borate                5.1  UN1458               II  5.1.......            A9, N34  152...........  212.......  240.......         5 kg        25 kg  A             56, 58,
          mixtures.                                                                                                                                                                          106

[[Page 134]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  5.1.......            A9, N34  152...........  213.......  240.......        25 kg       100 kg  A             56, 58,
                                                                       I                                                                                                                     106
 ......  Chlorate and magnesium             5.1  UN1459               II  5.1.......        A9, N34, T8  152...........  212.......  240.......         5 kg        25 kg  A             56, 58,
          chloride mixtures.                                                                                                                                                                 106
         .........................  ...........  ...................  II  5.1.......        A9, N34, T8  152...........  213.......  240.......        25 kg       100 kg  A             56, 58,
                                                                       I                                                                                                                     106
 ......  Chlorate of potash, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Potassium chlorate.                                                                                                                                                                   
 ......  Chlorate of soda, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sodium chlorate.                                                                                                                                                                      
 ......  Chlorates, inorganic,              5.1  UN3210               II  5.1.......                 T8  152...........  202.......  242.......          1 L          5 L  B             56, 58,
          aqueous solution, n.o.s.                                                                                                                                                           106
 ......  Chlorates, inorganic,              5.1  UN1461               II  5.1.......            A9, N34  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
          n.o.s.                                                                                                                                                                             106
 ......  Chloric acid aqueous               5.1  UN2626               II  5.1.......                T25  None..........  229.......  None......    Forbidden    Forbidden  D             56, 58,
          solution, with not more                                                                                                                                                            106
          than 10 percent chloric                                                                                                                                                               
          acid.                                                                                                                                                                                 
 ......  Chloride of phosphorus,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Phosphorus                                                                                                                                                                        
          trichloride.                                                                                                                                                                          
 ......  Chloride of sulfur, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sulfur chloride.                                                                                                                                                                      
 ......  Chlorinated lime, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Calcium hypochlorite                                                                                                                                                                  
          mixtures, etc.                                                                                                                                                                        
 ......  Chlorine.................          2.3  UN1017                   2.3, 8....         2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D             40, 51,
                                                                                                                                                                                         55, 62,
                                                                                                                                                                                         68, 89,
                                                                                                                                                                                              90
 ......  Chlorine azide...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
D......  Chlorine dioxide,                  5.1  NA9191               II  5.1, 6.1..                     None..........  229.......  None......    Forbidden    Forbidden  E                    
          hydrate, frozen.                                                                                                                                                                      
 ......  Chlorine dioxide (not        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hydrate).                                                                                                                                                                             
 ......  Chlorine pentafluoride...          2.3  UN2548                   2.3, 5.1,      1, B7, B9, B14  None..........  304.......  314.......    Forbidden    Forbidden  D             40, 89,
                                                                           8.                                                                                                                 90
 ......  Chlorite solution........            8  UN1908               II  8.........     A3,A6, A7, B2,  154...........  202.......  242.......          1 L         30 L  B                  26
                                                                                                N34, T8                                                                                         
         .........................  ...........  ...................  II  8.........     A3,A6, A7, B2,  154...........  203.......  241.......          5 L         60 L  B                  26
                                                                       I                        N34, T8                                                                                         

[[Page 135]]

                                                                                                                                                                                                
 ......  Chlorine trifluoride.....          2.3  UN1749                   2.3, 5.1,      2, B7, B9, B14  None..........  304.......  314.......    Forbidden    Forbidden  D             40, 89,
                                                                           8.                                                                                                                 90
 ......  Chlorites, inorganic,              5.1  UN1462               II  5.1.......            A7, N34  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
          n.o.s.                                                                                                                                                                             106
 ......  1-Chloro-3-bromopropane..          6.1  UN2688               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  1-Chloro-1,1-              ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          difluoroethane, see                                                                                                                                                                   
          Chlorodifluoroethanes.                                                                                                                                                                
 ......  1-Chloro-1,1-                      2.1  UN2517                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
          difluoroethane or                                                                                                                                                                     
          Refrigerant gas R 142b.                                                                                                                                                               
 ......  3-Chloro-4-methylphenyl            6.1  UN2236               II  6.1.......                     None..........  202.......  243.......          5 L         60 L  B                  40
          isocyanate.                                                                                                                                                                           
 ......  1-Chloro-1,2,2,2-                  2.2  UN1021                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          tetrafluoroethaneor                                                                                                                                                                   
          Refrigerant gas R 124.                                                                                                                                                                
 ......  4-Chloro-o-toluidine               6.1  UN1579               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
          hydrochloride.                                               I                                                                                                                        
 ......  1-Chloro-2,2,2-                    2.2  UN1983                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          trifluoroethane or                                                                                                                                                                    
          Refrigerant gas R 133a.                                                                                                                                                               
 ......  Chloroacetic acid, molten          6.1  UN3250               II  6.1, 8....                 T9  None..........  202.......  243.......    Forbidden    Forbidden  C                  40
 ......  Chloroacetic acid, solid.          6.1  UN1751               II  6.1, 8....        A3, A7, N34  None..........  212.......  242.......        15 kg        50 kg  A                  40
 ......  Chloroacetic acid,                 6.1  UN1750               II  6.1, 8....   A7, N34, T8, T27  None..........  202.......  243.......          1 L         30 L  C                  40
          solution.                                                                                                                                                                             
 ......  Chloroacetone, stabilized          6.1  UN1695                I  6.1,3,8...   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
                                                                                         B74, N12, N32,                                                                                       95
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Chloroacetone                Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (unstabilized).                                                                                                                                                                       
+......  Chloroacetonitrile.......          6.1  UN2668               II  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden         60 L  A             12, 26,
                                                                                         B74, T38, T43,                                                                                       40
                                                                                                    T45                                                                                         
 ......  Chloroacetophenone (CN),           6.1  UN1697               II  6.1.......  A3, N12, N32, N33  None..........  202.......  243.......    Forbidden         60 L  D              12, 40
          liquid.                                                                                                                                                                               
 ......  Chloroacetophenone (CN),           6.1  UN1697               II  6.1.......      A3, N12, N32,  None..........  212.......  None......    Forbidden       100 kg  D              12, 40
          solid.                                                                               N33, N34                                                                                         
 ......  Chloroacetyl chloride....          6.1  UN1752                I  6.1, 8....     2, A3, A6, A7,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                       B3, B8, B9, B14,                                                                                         
                                                                                         B32, B74, B77,                                                                                         
                                                                                         N34, N43, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Chloroanilines, liquid...          6.1  UN2019               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
 ......  Chloroanilines, solid....          6.1  UN2018               II  6.1.......           T14, T38  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Chloroanisidines.........          6.1  UN2233               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Chlorobenzene............            3  UN1134               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Chlorobenzol, see          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorobenzene.                                                                                                                                                                        
 ......  Chlorobenzotrifluorides..            3  UN2234               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Chlorobenzyl chlorides...          6.1  UN2235               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Chlorobutanes............            3  UN1127               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Chlorocresols, liquid....          6.1  UN2669               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                  12
 ......  Chlorocresols, solid.....          6.1  UN2669               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  12
 ......  Chlorodifluorobromomethan          2.2  UN1974                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          e or Refrigerant gas R                                                                                                                                                                
          12B1.                                                                                                                                                                                 

[[Page 136]]

                                                                                                                                                                                                
 ......  Chlorodifluoromethane and          2.2  UN1973                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          chloropentafluoroethane                                                                                                                                                               
          mixture or Refrigerant                                                                                                                                                                
          gas R 502 with fixed                                                                                                                                                                  
          boiling point, with                                                                                                                                                                   
          approximately 49 percent                                                                                                                                                              
          chlorodifluoromethane.                                                                                                                                                                
 ......  Chlorodifluoromethane or           2.2  UN1018                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 22.                                                                                                                                                                 
 ......  Chlorodinitrobenzenes....          6.1  UN1577               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                  91
 ......  2-Chloroethanal..........          6.1  UN2232                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Chloroform...............          6.1  UN1888               II  6.1.......           N36, T14  153...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Chloroformates, toxic,             6.1  UN2742               II  6.1, 8, 3.                  5  None..........  202.......  243.......          1 L         30 L  A             12, 13,
          corrosive, flammable,                                                                                                                                                          21, 25,
          n.o.s.                                                                                                                                                                         40, 100
 ......  Chloroformates, toxic,             6.1  UN3277               II  6.1, 8....           T12, T26  None..........  202.......  243.......          1 L         30 L  A             12, 13,
          corrosive, n.o.s.                                                                                                                                                               25, 40
 ......  Chloromethyl                       6.1  UN2745               II  6.1, 8....                T18  None..........  202.......  243.......          1 L         30 L  A             12, 13,
          chloroformate.                                                                                                                                                                 21, 25,
                                                                                                                                                                                         40, 100
 ......  Chloromethyl ethyl ether.            3  UN2354               II  3, 6.1....                 T8  None..........  202.......  243.......          1 L         60 L  E                  40
 ......  Chloronitroanilines......          6.1  UN2237               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
+......  Chloronitrobenzene,                6.1  UN1578               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
          ortho, liquid.                                                                                                                                                                        
+......  Chloronitrobenzenes meta           6.1  UN1578               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                    
          or para, solid.                                                                                                                                                                       
 ......  Chloronitrotoluenes                6.1  UN2433               II  6.1.......                     153...........  203.......  241.......         60 L        220 L  A                    
          liquid.                                                      I                                                                                                                        
 ......  Chloronitrotoluenes,               6.1  UN2433               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
          solid.                                                       I                                                                                                                        
 ......  Chloropentafluoroethane            2.2  UN1020                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          or Refrigerant gas R 115.                                                                                                                                                             
 ......  Chlorophenolates, liquid             8  UN2904               II  8.........                     154...........  203.......  241.......          5 L         60 L  A                    
          or Phenolates, liquid.                                       I                                                                                                                        
 ......  Chlorophenolates, solid              8  UN2905               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
          or Phenolates, solid.                                        I                                                                                                                        
 ......  Chlorophenols, liquid....          6.1  UN2021               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Chlorophenols, solid.....          6.1  UN2020               II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Chlorophenyltrichlorosila            8  UN1753               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
          ne.                                                                                   T8, T26                                                                                         

[[Page 137]]

                                                                                                                                                                                                
+......  Chloropicrin.............          6.1  UN1580                I  6.1.......    2, B7, B9, B14,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B32, B46, B74,                                                                                         
                                                                                          T38, T43, T45                                                                                         
 ......  Chloropicrin and methyl            2.3  UN1581                   2.3.......         2, B9, B14  None..........  193.......  314, 315..    Forbidden    Forbidden  D              25, 40
          bromide mixtures.                                                                                                                                                                     
 ......  Chloropicrin and methyl            2.3  UN1582                   2.3.......                  2  None..........  193.......  245.......    Forbidden    Forbidden  D              25, 40
          chloride mixtures.                                                                                                                                                                    
 ......  Chloropicrin mixture,      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          flammable (pressure not                                                                                                                                                               
          exceeding 14.7 psia at                                                                                                                                                                
          115 degrees F flash                                                                                                                                                                   
          point below 100 degrees                                                                                                                                                               
          F) see Toxic liquids,                                                                                                                                                                 
          flammable, etc.                                                                                                                                                                       
 ......  Chloropicrin mixtures,             6.1  UN1583                I  6.1.......                  5  None..........  201.......  243.......    Forbidden    Forbidden  C                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  202.......  243.......    Forbidden    Forbidden  C                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  203.......  241.......    Forbidden    Forbidden  C                  40
                                                                       I                                                                                                                        
D......  Chloropivaloyl chloride..          6.1  NA9263                I  6.1, 8....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  B                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Chloroplatinic acid,                 8  UN2507               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
          solid.                                                       I                                                                                                                        
 ......  Chloroprene, inhibited...            3  UN1991                I  3, 6.1....           B57, T15  None..........  201.......  243.......    Forbidden         30 L  D                  40
 ......  Chloroprene, uninhibited.    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  2-Chloropropane..........            3  UN2356                I  3.........           N36, T14  150...........  201.......  243.......          1 L         30 L  E                    
 ......  3-Chloropropanol-1.......          6.1  UN2849               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  2-Chloropropene..........            3  UN2456                I  3.........       A3, N36, T20  150...........  201.......  243.......          1 L         30 L  E                    
 ......  2-Chloropropionic acid...            8  UN2511               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                   8
                                                                       I                                                                                                                        
 ......  2-Chloropyridine.........          6.1  UN2822               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Chlorosilanes, corrosive,            8  UN2986               II  8, 3......     B100, T18, T26  None..........  202.......  243.......          1 L         30 L  C                  40
          flammable, n.o.s.                                                                                                                                                                     
 ......  Chlorosilanes, corrosive,            8  UN2987               II  8.........        B2, T8, T26  154...........  202.......  242.......          1 L         30 L  C                  40
          n.o.s.                                                                                                                                                                                
 ......  Chlorosilanes, flammable,            3  UN2985               II  3, 8......     B100, T18, T26  None..........  201.......  243.......          1 L          5 L  B                  40
          corrosive, n.o.s.                                                                                                                                                                     
 ......  Chlorosilanes, water-              4.3  UN2988                I  4.3, 3, 8.       A2, T24, T26  None..........  201.......  244.......    Forbidden          1 L  D             21, 28,
          reactive, flammable,                                                                                                                                                           40, 49,
          corrosive, n.o.s.                                                                                                                                                                  100
+......  Chlorosulfonic acid (with            8  UN1754                I  8, 6.1....    2, A3, A6, A10,  None..........  227.......  244.......    Forbidden    Forbidden  C                  40
          or without sulfur                                                               B9, B10, B14,                                                                                         
          trioxide).                                                                     B32, B74, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Chlorotoluenes...........            3  UN2238               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Chlorotoluidines liquid..          6.1  UN2239               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Chlorotoluidines solid...          6.1  UN2239               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Chlorotrifluoromethane             2.2  UN2599                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          and trifluoromethane                                                                                                                                                                  
          azeotropic mixture or                                                                                                                                                                 
          Refrigerant gas R 503                                                                                                                                                                 
          with approximately 60                                                                                                                                                                 
          percent                                                                                                                                                                               
          chlorotrifluoromethane.                                                                                                                                                               
 ......  Chlorotrifluoromethane OR          2.2  UN1022                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 13.                                                                                                                                                                 
D......  Chromic acid, solid......          5.1  NA1463               II  5.1, 8....                     None..........  212.......  242.......         5 kg        25 kg  A                    
 ......  Chromic acid solution....            8  UN1755               II  8.........        B2, T9, T27  154...........  202.......  242.......          1 L         30 L  C                  40

[[Page 138]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  8.........            T8, T26  154...........  203.......  241.......          5 L         60 L  C                  40
                                                                       I                                                                                                                        
 ......  Chromic anhydride, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chromium trioxide,                                                                                                                                                                    
          anhydrous.                                                                                                                                                                            
 ......  Chromic fluoride, solid..            8  UN1756               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                  26
 ......  Chromic fluoride,                    8  UN1757               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Chromium nitrate.........          5.1  UN2720               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Chromium oxychloride.....            8  UN1758                I  8.........   A3, A6, A7, B10,  None..........  201.......  243.......        0.5 L        2.5 L  C             40, 66,
                                                                                          N34, T12, T26                                                                                  74, 89,
                                                                                                                                                                                              90
 ......  Chromium trioxide,                 5.1  UN1463               II  5.1, 8....               B106  None..........  212.......  242.......         5 kg        25 kg  A                    
          anhydrous.                                                                                                                                                                            
 ......  Chromosulfuric acid......            8  UN2240                I  8.........    A3, A6, A7, B4,  None..........  201.......  243.......        0.5 L        2.5 L  B             40, 66,
                                                                                      B6, N34, T12, T27                                                                                  74, 89,
                                                                                                                                                                                              90
 ......  Chromyl chloride, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chromium oxychloride.                                                                                                                                                                 
 ......  Cigar and cigarette        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          lighters, charged with                                                                                                                                                                
          fuel, see Lighters for                                                                                                                                                                
          cigars, cigarettes, etc.                                                                                                                                                              
 ......  Coal briquettes, hot.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Coal gas, compressed.....          2.3  UN1023                   2.3, 2.1..                  3  None..........  302.......  314, 315..    Forbidden        25 kg  D                  40
 ......  Coal tar distillates,                3  UN1136               II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
          flammable.                                                                                                                                                                            
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Coal tar dye, corrosive,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquid, n.o.s, see Dyes,                                                                                                                                                              
          liquid or solid, n.o.s.                                                                                                                                                               
          or Dye intermediates,                                                                                                                                                                 
          liquid or solid, n.o.s.,                                                                                                                                                              
          corrosive.                                                                                                                                                                            
 ......  Coating solution                     3  UN1139                I  3.........                T42  150...........  201.......  243.......          1 L         30 L  E             .......
          (includes surface                                                                                                                                                                     
          treatments or coatings                                                                                                                                                                
          used for industrial or                                                                                                                                                                
          other purposes such as                                                                                                                                                                
          vehicle undercoating,                                                                                                                                                                 
          drum or barrel lining).                                                                                                                                                               
         .........................  ...........  ...................  II  3.........             T7,T30  150...........  202.......  242.......          5 L         60 L  B             .......
         .........................  ...........  ...................  II  3.........          B1,T7,T30  150...........  203.......  242.......         60 L        220 L  A             .......
                                                                       I                                                                                                                        
 ......  Cobalt naphthenates,               4.1  UN2001               II  4.1.......                A19  151...........  213.......  240.......        25 kg       100 kg  A                    
          powder.                                                      I                                                                                                                        
 ......  Cobalt resinate,                   4.1  UN1318               II  4.1.......            A1, A19  151...........  213.......  240.......        25 kg       100 kg  A                    
          precipitated.                                                I                                                                                                                        
 ......  Coke, hot................    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Collodion, see             ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitrocellulose etc.                                                                                                                                                                   

[[Page 139]]

                                                                                                                                                                                                
D......  Combustible liquid, n.o.s  Combustible  NA1993               II  None......                 T1  150...........  203.......  241.......         60 L        220 L  A                    
                                         liquid                        I                                                                                                                        
 ......  Components, explosive             1.2B  UN0382               II   1.2B.....                101  None..........  62........  None......    Forbidden    Forbidden  B              1E, 6E
          train, n.o.s.                                                                                                                                                                         
 ......  Components, explosive             1.4B  UN0383               II   1.4B.....                101  None..........  62........  None......    Forbidden        75 kg  A                 24E
          train, n.o.s.                                                                                                                                                                         
 ......  Components, explosive             1.4S  UN0384               II   1.4S.....                101  None..........  62........  None......        25 kg       100 kg  A                    
          train, n.o.s.                                                                                                                                                                         
 ......  Components, explosive             1.1B  UN0461               II   1.1B.....                101  None..........  62........  None......    Forbidden    Forbidden  B              1E, 6E
          train, n.o.s.                                                                                                                                                                         
 ......  Composition B, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hexolite, etc.                                                                                                                                                                        
D......  Compounds, cleaning                  8  NA1760                I  8.........       A7, B10, T42  None..........  201.......  243.......        0.5 L        2.5 L  B                  40
          liquid.                                                                                                                                                                               
         .........................  ...........  ...................  II  8.........       B2, N37, T14  154...........  202.......  242.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8.........            N37, T7  154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
D......  Compounds, cleaning                  3  NA1993                I  3.........                T42  150...........  201.......  243.......          1 L         30 L  E                    
          liquid.                                                                                                                                                                               
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........   B1, B52, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
D......  Compounds, tree killing,             8  NA1760                I  8.........       A7, B10, T42  None..........  201.......  243.......        0.5 L        2.5 L  B                  40
          liquid or Compounds,                                                                                                                                                                  
          weed killing, liquid.                                                                                                                                                                 
         .........................  ...........  ...................  II  8.........       B2, N37, T14  154...........  202.......  242.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8.........            N37, T7  154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
D......  Compounds, tree killing,             3  NA1993                I  3.........                T42  150...........  201.......  243.......          1 L         30 L  E                    
          liquid or Compounds,                                                                                                                                                                  
          weed killing, liquid.                                                                                                                                                                 
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........   B1, B52, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
D......  Compounds, tree killing,           6.1  NA2810                I  6.1.......                     None..........  201.......  243.......          1 L         30 L  B                  40
          liquid or Compounds,                                                                                                                                                                  
          weed killing, liquid.                                                                                                                                                                 
         .........................  ...........  ...................  II  6.1.......                     None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Compressed gas,                    2.2  UN3156                   2.2, 5.1..                     306...........  302.......  314, 315..        75 kg       150 kg  D                    
          oxidizing, n.o.s.                                                                                                                                                                     
I......  Compressed gas, toxic,             2.3  UN3304               ..  2.3, 8....                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone A.                                                                                                                                                             
I......  Compressed gas, toxic,             2.3  UN3304               ..  2.3, 8....                  2  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone B.                                                                                                                                                             
I......  Compressed gas, toxic,             2.3  UN3304               ..  2.3, 8....                  3  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone C.                                                                                                                                                             
I......  Compressed gas, toxic,             2.3  UN3304               ..  2.3, 8....                  4  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone D.                                                                                                                                                             
I......  Compressed gas, toxic,             2.3  UN3305               ..  2.3, 2.1,                   1  None..........  192.......  245.......    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone A.                                                                                                                                                                               
I......  Compressed gas, toxic,             2.3  UN3305               ..  2.3, 2.1,                   2  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone B.                                                                                                                                                                               
I......  Compressed gas, toxic,             2.3  UN3305               ..  2.3, 2.1,                   3  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone C.                                                                                                                                                                               
I......  Compressed gas, toxic,             2.3  UN3305               ..  2.3, 2.1,                   4  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone D.                                                                                                                                                                               
I......  Compressed gas, toxic,             2.3  UN3306               ..  2.3, 5.1,                   1  None..........  192.......  244.......    Forbidden    Forbidden  D             40, 89,
          oxdizing, corrosive,                                             8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone A.                                                                                                                                                                               

[[Page 140]]

                                                                                                                                                                                                
I......  Compressed gas, toxic,             2.3  UN3306               ..  2.3, 5.1,                   2  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D             40, 89,
          oxidizing, corrosive,                                            8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone B.                                                                                                                                                                               
I......  Compressed gas, toxic,             2.3  UN3306               ..  2.3, 5.1,                   3  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D             40, 89,
          oxidizing, corrosive,                                            8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone C.                                                                                                                                                                               
I......  Compressed gas, toxic,             2.3  UN3306               ..  2.3, 5.1,                   4  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D             40, 89,
          oxidizing, corrosive,                                            8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone D.                                                                                                                                                                               
 ......  Compressed gas, toxic,             2.3  UN3303               ..  2.3, 5.1..                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone A.                                                                                                                                                             
 ......  Compressed gas, toxic,             2.3  UN3303               ..  2.3, 5.1..                  2  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone B.                                                                                                                                                             
 ......  Compressed gas, toxic,             2.3  UN3303               ..  2.3, 5.1..                  3  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone C.                                                                                                                                                             
 ......  Compressed gas, toxic,             2.3  UN3303               ..  2.3, 5.1..                  4  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone D.                                                                                                                                                             
 ......  Compressed gases,                  2.1  UN1954                   2.1.......                     306...........  302, 305..  314, 315..    Forbidden       150 kg  D                  40
          flammable, n.o.s.                                                                                                                                                                     
 ......  Compressed gases, n.o.s..          2.2  UN1956                   2.2.......                     306, 307......  302, 305..  314, 315..        75 kg       150 kg  A                    
 ......  Compressed gases, toxic,           2.3  UN1953                   2.3, 2.1..                  1  None..........  192.......  245.......    Forbidden    Forbidden  D              40, 95
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation hazard Zone A.                                                                                                                                                             
 ......  Compressed gases, toxic,           2.3  UN1953                   2.3, 2.1..         2, B9, B14  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation hazard Zone B.                                                                                                                                                             
 ......  Compressed gases, toxic,           2.3  UN1953                   2.3, 2.1..             3, B14  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone C.                                                                                                                                                             
 ......  Compressed gases, toxic,           2.3  UN1953                   2.3, 2.1..                  4  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone D.                                                                                                                                                             
 ......  Compressed gases, toxic,           2.3  UN1955                   2.3.......                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone A.                                                                                                                                                                               
 ......  Compressed gases, toxic,           2.3  UN1955                   2.3.......         2, B9, B14  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone B.                                                                                                                                                                               
 ......  Compressed gases, toxic,           2.3  UN1955                   2.3.......             3, B14  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone C.                                                                                                                                                                               

[[Page 141]]

                                                                                                                                                                                                
 ......  Compressed gases, toxic,           2.3  UN1955                   2.3.......                  4  None..........  302, 305..  314, 315..    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone D.                                                                                                                                                                               
D......  Consumer commodity.......        ORM-D  ...................      None......                     156, 306......  156, 306..  None......  30 kg gross  30 kg gross  A                    
 ......  Contrivances, water-              1.2L  UN0248               II   1.2L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          activated, with burster,                                                                                                                                                          11E,
          expelling charge or                                                                                                                                                                17E
          propelling charge.                                                                                                                                                                    
 ......  Contrivances, water-              1.3L  UN0249               II   1.3L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          activated, with burster,                                                                                                                                                          11E,
          expelling charge or                                                                                                                                                                17E
          propelling charge.                                                                                                                                                                    
 ......  Copper acetoarsenite.....          6.1  UN1585               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Copper acetylide.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Copper amine azide.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Copper arsenite..........          6.1  UN1586               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Copper based pesticides,             3  UN2776                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Copper based pesticides,           6.1  UN3010                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Copper based pesticides,           6.1  UN3009                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic, flammable                                                                                                                                                              
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Copper based pesticides,           6.1  UN2775                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Copper chlorate..........          5.1  UN2721               II  5.1.......                 A1  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Copper chloride..........            8  UN2802               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Copper cyanide...........          6.1  UN1587               II  6.1.......                     None..........  204.......  242.......        25 kg       100 kg  A                  26
 ......  Copper selenate, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Copper selenite, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Copper tetramine nitrate.    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
AW.....  Copra....................          4.2  UN1363               II  4.2.......                     None..........  213.......  241.......    Forbidden    Forbidden  A             13, 19,
                                                                       I                                                                                                                 48, 119
 ......  Cord, detonating,                 1.1D  UN0065               II   1.1D.....                102  63(a).........  62........  None......    Forbidden    Forbidden  B                    
          flexible.                                                                                                                                                                             
 ......  Cord, detonating,                 1.4D  UN0289               II   1.4D.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          flexible.                                                                                                                                                                             
 ......  Cord detonating or Fuse           1.2D  UN0102               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          detonating metal clad.                                                                                                                                                                
 ......  Cord, detonating or Fuse,         1.1D  UN0290               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          detonating metal clad.                                                                                                                                                                

[[Page 142]]

                                                                                                                                                                                                
 ......  Cord, detonating, mild            1.4D  UN0104               II   1.4D.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          effect or Fuse,                                                                                                                                                                       
          detonating, mild effect                                                                                                                                                               
          metal clad.                                                                                                                                                                           
 ......  Cord, igniter............         1.4G  UN0066               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Cordeau detonant fuse,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Cord, detonating,                                                                                                                                                                 
          etc; Cord, detonating,                                                                                                                                                                
          flexible.                                                                                                                                                                             
 ......  Cordite, see Powder,       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          smokeless.                                                                                                                                                                            
 ......  Corrosive liquid, acidic,            8  UN3264                I  8.........                B10   None.........  201.......  243.......        0.5 L        2.5 L  B                  40
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8.........            B2, T14  154...........  202.......  242.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Corrosive liquid, acidic,            8  UN3265                I  8.........                B10   None.........  201.......  243.......        0.5 L        2.5 L  B                  40
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  8.........            B2, T14  154...........  202.......  242.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8.........                 T7   154..........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Corrosive liquid, basic,             8  UN3266                I  8.........                B10   None.........  201.......  243.......        0.5 L        2.5 L  B                  40
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8.........            B2, T14  154...........  202.......  242.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Corrosive liquid, basic,             8  UN3267                I  8.........                B10  None..........  201.......  243.......        0.5 L        2.5 L  B                  40
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  8.........            B2, T14   154..........  202.......  242.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Corrosive liquid, self-              8  UN3301                I  8, 4.2....                B10  None..........  201.......  243.......        0.5 L        2.5 L  D                    
          heating, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  8, 4.2....                 B2  154...........  202.......  242.......          1 L         30 L  D                    
 ......  Corrosive liquids,                   8  UN2920                I  8, 3......           B10, T42  None..........  201.......  243.......        0.5 L        2.5 L  C              25, 40
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8, 3......       B2, T15, T26  None..........  202.......  243.......          1 L         30 L  C              25, 40
 ......  Corrosive liquids, n.o.s.            8  UN1760                I  8.........       A7, B10, T42  None..........  201.......  243.......        0.5 L        2.5 L  B                  40
         .........................  ...........  ...................  II  8.........            B2, T14  154...........  202.......  242.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Corrosive liquids,                   8  UN3093                I  8, 5.1....                     None..........  201.......  243.......    Forbidden        2.5 L  C                  89
          oxidizing, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8, 5.1....                     None..........  202.......  243.......          1 L         30 L  C                  89
 ......  Corrosive liquids, toxic,            8  UN2922                I  8, 6.1....  A7, B10, T18, T27  None..........  201.......  243.......        0.5 L        2.5 L  B                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  8, 6.1....       B3, T18, T26  None..........  202.......  243.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  8, 6.1....                 T8  154...........  203.......  241.......          5 L         60 L  B                  40
                                                                       I                                                                                                                        
 ......  Corrosive liquids, water-            8  UN3094                I  8, 4.3....                     None..........  201.......  243.......    Forbidden          1 L  E                    
          reactive, n.o.s.                                                                                                                                                                      
         .........................  ...........  ...................  II  8, 4.3....                     None..........  202.......  243.......          1 L          5 L  E                    
 ......  Corrosive solid, acidic,             8  UN3260                I  8.........                     None..........  211.......  242.......         1 kg        25 kg  B                    
          inorganic, n.o.s.                                                                                                                                                                     

[[Page 143]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  8.........                     154...........  212.......  240.......        15 kg        50 kg  B                    
         .........................  ...........  ...................  II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Corrosive solid, acidic,             8  UN3261                I  8.........                     None..........  211.......  242.......         1 kg        25 kg  B                    
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  8.........                     154...........  212.......  240.......        15 kg        50 kg  B                    
         .........................  ...........  ...................  II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Corrosive solid, basic,              8  UN3262                I  8.........                     None..........  211.......  242.......         1 kg        25 kg  B                    
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8.........                     154...........  212.......  240.......        15 kg        50 kg  B                    
         .........................  ...........  ...................  II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Corrosive solid, basic,              8  UN3263                I  8.........                     None..........  211.......  242.......         1 kg        25 kg  B                    
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  8.........                     154...........  212.......  240.......        15 kg        50 kg  B                    
         .........................  ...........  ...................  II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Corrosive solids,                    8  UN2921                I  8, 4.1....               B106  None..........  211.......  242.......         1 kg        25 kg  B              12, 25
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8, 4.1....                     None..........  212.......  242.......        15 kg        50 kg  B              12, 25
 ......  Corrosive solids, n.o.s..            8  UN1759                I  8.........                     None..........  211.......  242.......         1 kg        25 kg  B                    
         .........................  ...........  ...................  II  8.........                128  154...........  212.......  240.......        15 kg        50 kg  A                    
         .........................  ...........  ...................  II  8.........                128  154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Corrosive solids,                    8  UN3084                I  8, 5.1....               B100  None..........  211.......  242.......         1 kg        25 kg  C                    
          oxidizing, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8, 5.1....               B100  None..........  212.......  242.......        15 kg        50 kg  C                    
 ......  Corrosive solids, self-              8  UN3095                I  8, 4.2....               B100  None..........  211.......  243.......         1 kg        25 kg  C                    
          heating, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  8, 4.2....                     None..........  212.......  242.......        15 kg        50 kg  C                    
 ......  Corrosive solids, toxic,             8  UN2923                I  8, 6.1....                     None..........  211.......  242.......         1 kg        25 kg  B                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  8, 6.1....                     None..........  212.......  240.......        15 kg        50 kg  B                  40
         .........................  ...........  ...................  II  8, 6.1....                     154...........  213.......  240.......        25 kg       100 kg  B              40, 95
                                                                       I                                                                                                                        
 ......  Corrosive solids, water-             8  UN3096                I  8, 4.3....               B105  None..........  211.......  243.......         1 kg        25 kg  D                    
          reactive, n.o.s.                                                                                                                                                                      
         .........................  ...........  ...................  II  8, 4.3....          128, B105  None..........  212.......  242.......        15 kg        50 kg  D                    
DW.....  Cotton...................            9  NA1365                    9........                W41  None..........  None......  None......     No limit     No limit  A                    
AIW....  Cotton waste, oily.......          4.2  UN1364               II  4.2.......                 N9  None..........  213.......  None......    Forbidden    Forbidden  A                  54
                                                                       I                                                                                                                        
AIW....  Cotton, wet..............          4.2  UN1365               II  4.2.......                     None..........  204.......  241.......    Forbidden    Forbidden  A                    
                                                                       I                                                                                                                        
 ......  Coumarin derivative                  3  UN3024                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          flammable, toxic,                                                                                                                                                                     
          flashpoint less than 23                                                                                                                                                               
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Coumarin derivative                6.1  UN3026                I  6.1.......                     None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Coumarin derivative                6.1  UN3025                I  6.1, 3....                     None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic, flammable                                                                                                                                                                      
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                     None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....                 B1  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Coumarin derivative                6.1  UN3027                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          pesticides, solid, toxic.                                                                                                                                                             
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Cresols..................          6.1  UN2076               II  6.1, 8....           B110, T8  None..........  202.......  243.......          1 L         30 L  B                    
 ......  Cresylic acid............          6.1  UN2022               II  6.1, 8....           B110, T8  None..........  202.......  243.......          1 L         30 L  B                    

[[Page 144]]

                                                                                                                                                                                                
 ......  Crotonaldehyde,                    6.1  UN1143                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden         30 L  B                  40
          stabilized.                                                                    B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Crotonic acid liquid.....            8  UN2823               II  8.........                     154...........  203.......  241.......          5 L         60 L  A                  12
                                                                       I                                                                                                                        
 ......  Crotonic acid, solid.....            8  UN2823               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                  12
                                                                       I                                                                                                                        
 ......  Crotonylene..............            3  UN1144                I  3.........                T20  150...........  201.......  243.......          1 L         30 L  E                    
 ......  Cupriethylenediamine                 8  UN1761               II  8, 6.1....            T8, T26  None..........  202.......  243.......          1 L         30 L  A                  95
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8, 6.1....                 T7  154...........  203.......  242.......          5 L         60 L  A                  95
                                                                       I                                                                                                                        
 ......  Cutters, cable, explosive         1.4S  UN0070               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Cyanide or cyanide         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixtures, dry, see                                                                                                                                                                    
          Cyanides, inorganic,                                                                                                                                                                  
          solid, n.o.s.                                                                                                                                                                         
 ......  Cyanide solutions, n.o.s.          6.1  UN1935                I  6.1.......      B37, T18, T26  None..........  201.......  243.......          1 L         30 L  B              40, 52
         .........................  ...........  ...................  II  6.1.......           T18, T26  None..........  202.......  243.......          5 L         60 L  A              40, 52
         .........................  ...........  ...................  II  6.1.......           T18, T26  153...........  203.......  241.......         60 L        220 L  A              40, 52
                                                                       I                                                                                                                        
 ......  Cyanides, inorganic,               6.1  UN1588                I  6.1.......           N74, N75  None..........  211.......  242.......         5 kg        50 kg  A                  52
          solid, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......           N74, N75  None..........  212.......  242.......        25 kg       100 kg  A                  52
         .........................  ...........  ...................  II  6.1.......           N74, N75  153...........  213.......  240.......       100 kg       200 kg  A                  52
                                                                       I                                                                                                                        
 ......  Cyanogen bromide.........          6.1  UN1889                I  6.1, 8....             A6, A8  None..........  211.......  242.......         1 kg        15 kg  D                  40
 ......  Cyanogen chloride,                 2.3  UN1589                   2.3, 8....                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          inhibited.                                                                                                                                                                            
 ......  Cyanogen.................          2.3  UN1026                   2.3, 2.1..                  2  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
 ......  Cyanuric chloride........            8  UN2670               II  8.........                     None..........  212.......  240.......        15 kg        50 kg  A              12, 40
 ......  Cyanuric triazide........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Cyclobutane..............          2.1  UN2601                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Cyclobutyl chloroformate.          6.1  UN2744               II  6.1, 8, 3.                T18  None..........  202.......  243.......          1 L         30 L  A             12, 13,
                                                                                                                                                                                         21, 25,
                                                                                                                                                                                         40, 100
 ......  1,5,9-Cyclododecatriene..          6.1  UN2518               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Cycloheptane.............            3  UN2241               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Cycloheptatriene.........            3  UN2603               II  3, 6.1....                T14  None..........  202.......  243.......          1 L         60 L  E                  40
 ......  Cycloheptene.............            3  UN2242               II  3.........             B1, T7  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Cyclohexane..............            3  UN1145               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Cyclohexanone............            3  UN1915               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Cyclohexene..............            3  UN2256               II  3.........           B101, T7  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Cyclohexenyltrichlorosila            8  UN1762               II  8.........   A7, B2, N34, T8,  None..........  202.......  242.......    Forbidden         30 L  C                  40
          ne.                                                                                       T26                                                                                         

[[Page 145]]

                                                                                                                                                                                                
 ......  Cyclohexyl acetate.......            3  UN2243               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Cyclohexyl isocyanate....          6.1  UN2488                I  6.1, 3....     2,B9, B14,B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
                                                                                          B74,B77, T38,                                                                                       95
                                                                                               T43, T45                                                                                         
 ......  Cyclohexyl mercaptan.....            3  UN3054               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A              40, 95
                                                                       I                                                                                                                        
 ......  Cyclohexylamine..........            8  UN2357               II  8, 3......      B101, T8, T26  None..........  202.......  243.......          1 L         30 L  A                  40
 ......  Cyclohexyltrichlorosilane            8  UN1763               II  8.........   A7, B2, N34, T8,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                    T26                                                                                         
 ......  Cyclonite and              ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          cyclotetramethylenetetra                                                                                                                                                              
          nitramine mixtures,                                                                                                                                                                   
          wetted or desensitized                                                                                                                                                                
          see RDX and HMX                                                                                                                                                                       
          mixtures, wetted or                                                                                                                                                                   
          desensitized etc.                                                                                                                                                                     
 ......  Cyclonite and HMX          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixtures, wetted or                                                                                                                                                                   
          desensitized see RDX and                                                                                                                                                              
          HMX mixtures, wetted or                                                                                                                                                               
          desensitized etc.                                                                                                                                                                     
 ......  Cyclonite and octogen      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixtures, wetted or                                                                                                                                                                   
          desensitized see RDX and                                                                                                                                                              
          HMX mixtures, wetted or                                                                                                                                                               
          desensitized etc.                                                                                                                                                                     
 ......  Cyclonite, see             ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cyclotrimethylenetrinitr                                                                                                                                                              
          amine, etc.                                                                                                                                                                           
 ......  Cyclooctadiene             ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          phosphines, see 9-                                                                                                                                                                    
          Phosphabicyclononanes.                                                                                                                                                                
 ......  Cyclooctadienes..........            3  UN2520               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Cyclooctatetraene........            3  UN2358               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Cyclopentane.............            3  UN1146               II  3.........          B101, T14  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Cyclopentane, methyl, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Methylcyclopentane.                                                                                                                                                                   
 ......  Cyclopentanol............            3  UN2244               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Cyclopentanone...........            3  UN2245               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Cyclopentene.............            3  UN2246               II  3.........          B101, T13  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Cyclopropane.............          2.1  UN1027                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
 ......  Cyclotetramethylene          Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetranitramine (dry or                                                                                                                                                                
          unphlegmatized) (HMX).                                                                                                                                                                
 ......  Cyclotetramethylenetetran         1.1D  UN0484               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          itramine, desensitized                                                                                                                                                                
          or Octogen, desensitized                                                                                                                                                              
          or HMX, desensitized.                                                                                                                                                                 
 ......  Cyclotetramethylenetetran         1.1D  UN0226               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          itramine, wetted or HMX,                                                                                                                                                              
          wetted or Octogen,                                                                                                                                                                    
          wetted with not less                                                                                                                                                                  
          than 15 percent water,                                                                                                                                                                
          by mass.                                                                                                                                                                              
 ......  Cyclotrimethylenenitramin  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          e and octogen, mixtures,                                                                                                                                                              
          wetted or desensitized                                                                                                                                                                
          see RDX and HMX                                                                                                                                                                       
          mixtures, wetted or                                                                                                                                                                   
          desensitized etc.                                                                                                                                                                     

[[Page 146]]

                                                                                                                                                                                                
 ......  Cyclotrimethylenetrinitra  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mine and                                                                                                                                                                              
          cyclotetramethylenetetra                                                                                                                                                              
          nitramine mixtures,                                                                                                                                                                   
          wetted or desensitized                                                                                                                                                                
          see RDX and HMX                                                                                                                                                                       
          mixtures, wetted or                                                                                                                                                                   
          desensitized etc.                                                                                                                                                                     
 ......  Cyclotrimethylenetrinitra  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mine and HMX mixtures,                                                                                                                                                                
          wetted or desensitized                                                                                                                                                                
          see RDX and HMX                                                                                                                                                                       
          mixtures, wetted or                                                                                                                                                                   
          desensitized etc.                                                                                                                                                                     
 ......  Cyclotrimethylenetrinitra         1.1D  UN0483               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          mine, desensitized or                                                                                                                                                                 
          Cyclonite, desensitized                                                                                                                                                               
          or Hexogen, desensitized                                                                                                                                                              
          or RDX, desensitized.                                                                                                                                                                 
 ......  Cyclotrimethylenetrinitra         1.1D  UN0072               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          mine, wetted or                                                                                                                                                                       
          Cyclonite, wetted or                                                                                                                                                                  
          Hexogen, wetted or RDX,                                                                                                                                                               
          wetted with not less                                                                                                                                                                  
          than 15 percent water by                                                                                                                                                              
          mass.                                                                                                                                                                                 
 ......  Cymenes..................            3  UN2046               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Decaborane...............          4.1  UN1868               II  4.1, 6.1..           A19, A20  None..........  212.......  None......    Forbidden        50 kg  A                    
 ......  Decahydronaphthalene.....            3  UN1147               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  n-Decane.................            3  UN2247               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Deflagrating metal salts          1.3C  UN0132               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          of aromatic                                                                                                                                                                           
          nitroderivatives, n.o.s.                                                                                                                                                              
 ......  Delay electric igniter,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Igniters.                                                                                                                                                                         
D......  Denatured alcohol........            3  NA1986                I  3, 6.1....            T8, T31  None..........  201.......  243.......    Forbidden         30 L  E                  40
         .........................  ...........  ...................  II  3, 6.1....            T8, T31  None..........  202.......  243.......          1 L         60 L  E                  40
         .........................  ...........  ...................  II  3, 6.1....        B1, T8, T31  150...........  203.......  242.......         60 L        220 L  E                  40
                                                                       I                                                                                                                        
D......  Denatured alcohol........            3  NA1987               II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Depth charges, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Charges, depth.                                                                                                                                                                       
 ......  Detonating relays, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Detonators, etc.                                                                                                                                                                      
 ......  Detonator assemblies, non-        1.1B  UN0360               II   1.1B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
          electric for blasting.                                                                                                                                                                
 ......  Detonator assemblies, non-        1.4B  UN0361               II   1.4B.....                103  63(f), 63(g)..  62........  None......    Forbidden        75 kg  A                 24E
          electric, for blasting.                                                                                                                                                               
  .....  Detonator assemblies, non-        1.4S  UN0500               II  1.4S......                104  63(f), 63(g)..  62........  None......        25 kg       100 kg  A             .......
           electric for blasting.                                                                                                                                                               

[[Page 147]]

                                                                                                                                                                                                
 ......  Detonators, electric, for         1.1B  UN0030               II   1.1B.....                     63(f), 63(g)..  62........  None......    Forbidden    Forbidden  B              2E, 6E
          blasting.                                                                                                                                                                             
 ......  Detonators, electric, for         1.4B  UN0255               II   1.4B.....                103  63(f), 63(g)..  62........  None......    Forbidden        75 kg  A                 24E
          blasting.                                                                                                                                                                             
 ......  Detonators, electric for          1.4S  UN0456               II   1.4S.....                104  63(f), 63(g)..  62........  None......        25 kg       100 kg  A                    
          blasting.                                                                                                                                                                             
 ......  Detonators for ammunition         1.1B  UN0073               II   1.1B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
 ......  Detonators for ammunition         1.2B  UN0364               II   1.2B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
 ......  Detonators for ammunition         1.4B  UN0365               II   1.4B.....                103  None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Detonators for ammunition         1.4S  UN0366               II   1.4S.....                104  None..........  62........  None......        25 kg       100 kg  A                    
 ......  Detonators, non-electric,         1.1B  UN0029               II   1.1B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
          for blasting.                                                                                                                                                                         
 ......  Detonators, non-electric,         1.4B  UN0267               II   1.4B.....                103  63(f), 63(g)..  62........  None......    Forbidden        75 kg  A                 24E
          for blasting.                                                                                                                                                                         
 ......  Detonators, non-electric          1.4S  UN0455               II   1.4S.....                104  None..........  62........  None......        25 kg       100 kg  A                    
          for blasting.                                                                                                                                                                         
 ......  Deuterium, compressed....          2.1  UN1957                   2.1.......                     306...........  302.......  None......    Forbidden       150 kg  E                  40
 ......  Devices, small,                    2.1  UN3150                   2.1.......                     306...........  304.......  None......    Forbidden       150 kg  B                  40
          hydrocarbon gas powered                                                                                                                                                               
          or Hydrocarbon gas                                                                                                                                                                    
          refills for small                                                                                                                                                                     
          devices with release                                                                                                                                                                  
          device.                                                                                                                                                                               
 ......  Di-n-amylamine...........            3  UN2841               II  3, 6.1....             B1, T8  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Di-n-butyl                   Forbidden  ...................      ..........                      .............   .........   .........                                                 
          peroxydicarbonate, with                                                                                                                                                               
          more than 52 percent in                                                                                                                                                               
          solution.                                                                                                                                                                             
 ......  Di-n-butylamine..........            8  UN2248               II  8, 3......                 T8  None..........  202.......  243.......          1 L         30 L  A                    
 ......  2,2-Di-(tert-butylperoxy)    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          butane, with more than                                                                                                                                                                
          55 percent in solution.                                                                                                                                                               
 ......  Di-(tert-butylperoxy)        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          phthalate, with more                                                                                                                                                                  
          than 55 percent in                                                                                                                                                                    
          solution.                                                                                                                                                                             
 ......  2,2-Di-(4,4-di-tert-         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          butylperoxycyclohexyl)                                                                                                                                                                
          propane, with more than                                                                                                                                                               
          42 percent with inert                                                                                                                                                                 
          solid.                                                                                                                                                                                
 ......  Di-2,4-dichlorobenzoyl       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxide, with more than                                                                                                                                                              
          75 percent with water.                                                                                                                                                                
 ......  1,2-Di-                              3  UN2372               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
          (dimethylamino)ethane.                                                                                                                                                                
 ......  Di-2-ethylhexyl            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          phosphoric acid, see                                                                                                                                                                  
          Diisooctyl acid                                                                                                                                                                       
          phosphate.                                                                                                                                                                            
 ......  Di-(1-hydroxytetrazole)      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Di-(1-naphthoyl) peroxide    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  a,a'-Di-(nitroxy)            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methylether.                                                                                                                                                                          
 ......  Di-(beta-nitroxyethyl)       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ammonium nitrate.                                                                                                                                                                     
 ......  Diacetone alcohol........            3  UN1148               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Diacetone alcohol            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxides, with more                                                                                                                                                                  
          than 57 percent in                                                                                                                                                                    
          solution with more than                                                                                                                                                               
          9 percent hydrogen                                                                                                                                                                    
          peroxide, less than 26                                                                                                                                                                
          percent diacetone                                                                                                                                                                     
          alcohol and less than 9                                                                                                                                                               
          percent water; total                                                                                                                                                                  
          active oxygen content                                                                                                                                                                 
          more than 9 percent by                                                                                                                                                                
          mass.                                                                                                                                                                                 

[[Page 148]]

                                                                                                                                                                                                
 ......  Diacetyl, see Butanedione  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Diacetyl peroxide, solid,    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          or with more than 25                                                                                                                                                                  
          percent in solution.                                                                                                                                                                  
 ......  Diallylamine.............            3  UN2359               II  3, 6.1, 8.                 T8  None..........  202.......  243.......          1 L          5 L  B             21, 40,
                                                                                                                                                                                             100
 ......  Diallylether.............            3  UN2360               II  3, 6.1....            N12, T8  None..........  202.......  243.......          1 L         60 L  E                  40
 ......  4,4'-Diaminodiphenyl               6.1  UN2651               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
          methane.                                                     I                                                                                                                        
 ......  p-Diazidobenzene.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1,2-Diazidoethane........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1,1'-                        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Diazoaminonaphthalene.                                                                                                                                                                
 ......  Diazoaminotetrazole (dry)    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Diazodinitrophenol (dry).    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Diazodinitrophenol,               1.1A  UN0074               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          wetted with not less                                                                                                                                                                  
          than 40 percent water or                                                                                                                                                              
          mixture of alcohol and                                                                                                                                                                
          water, by mass.                                                                                                                                                                       
 ......  Diazodiphenylmethane.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Diazonium nitrates (dry).    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Diazonium perchlorates       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  1,3-Diazopropane.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Dibenzyl                     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxydicarbonate, with                                                                                                                                                               
          more than 87 percent                                                                                                                                                                  
          with water.                                                                                                                                                                           
 ......  Dibenzyldichlorosilane...            8  UN2434               II  8.........        B2, T8, T26  154...........  202.......  242.......          1 L         30 L  C                  40
 ......  Diborane, compressed.....          2.3  UN1911                   2.3, 2.1..                  1  None..........  302.......  None......    Forbidden    Forbidden  D              40, 57
D......  Diborane mixtures........          2.1  NA1911                   2.1.......                  5  None..........  302.......  245.......    Forbidden    Forbidden  D              40, 57
 ......  Dibromoacetylene.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1,2-Dibromobutan-3-one...          6.1  UN2648               II  6.1.......                     None..........  202.......  243.......          5 L         60 L  B                  40
 ......  Dibromochloropropane.....          6.1  UN2872               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
A......  Dibromodifluoromethane,              9  UN1941               II  None......                T22  155...........  203.......  241.......        100 L        220 L  A                  25
          R12B2.                                                       I                                                                                                                        
 ......  1,2-Dibromoethane, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethylene dibromide.                                                                                                                                                                   
 ......  Dibromomethane...........          6.1  UN2664               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dibutyl ethers...........            3  UN1149               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dibutylaminoethanol......          6.1  UN2873               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  N,N'-                        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dichlorazodicarbonamidin                                                                                                                                                              
          e (salts of) (dry).                                                                                                                                                                   
 ......  1,1-Dichloro-1-                    6.1  UN2650               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A              12, 40
          nitroethane.                                                                                                                                                                          

[[Page 149]]

                                                                                                                                                                                                
D......  3,5-Dichloro-2,4,6-                6.1  NA9264                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  A              40, 95
          trifluoropyridine.                                                             B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Dichloroacetic acid......            8  UN1764               II  8.........    A3, A6, A7, B2,  154...........  202.......  242.......          1 L         30 L  A                    
                                                                                           N34, T9, T27                                                                                         
 ......  1,3-Dichloroacetone......          6.1  UN2649               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  B              12, 40
 ......  Dichloroacetyl chloride..            8  UN1765               II  8.........    A3, A6, A7, B2,  154...........  202.......  242.......          1 L         30 L  D                  40
                                                                                       B6, N34, T8, T26                                                                                         
 ......  Dichloroacetylene........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Dichloroanilines, liquid.          6.1  UN1590               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Dichloroanilines, solid..          6.1  UN1590               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                  40
 ......  o-Dichlorobenzene........          6.1  UN1591               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
D......  Dichlorobutene...........            8  NA2920                I  8, 3......                     None..........  201.......  243.......        0.5 L        2.5 L  C             12, 21,
                                                                                                                                                                                         25, 40,
                                                                                                                                                                                              48
 ......  2,2'-Dichlorodiethyl               6.1  UN1916               II  6.1, 3....       N33, N34, T8  None..........  202.......  243.......          5 L         60 L  A                    
          ether.                                                                                                                                                                                
 ......  Dichlorodifluoromethane            2.2  UN2602                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          and difluoroethane                                                                                                                                                                    
          azeotropic mixture or                                                                                                                                                                 
          Refrigerant gas R 500                                                                                                                                                                 
          with approximately 74                                                                                                                                                                 
          percent                                                                                                                                                                               
          dichlorodifluoromethane.                                                                                                                                                              
 ......  Dichlorodifluoromethane            2.2  UN1028                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          or Refrigerant gas R 122.                                                                                                                                                             
 ......  Dichlorodimethyl ether,            6.1  UN2249                I  6.1.......                T25  None..........  201.......  243.......    Forbidden    Forbidden  D                  40
          symmetrical.                                                                                                                                                                          
 ......  1,1-Dichloroethane.......            3  UN2362               II  3.........           B101, T7  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  1,2-Dichloroethane, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethylene dichloride.                                                                                                                                                                  
 ......  Dichloroethyl sulfide....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1,2-Dichloroethylene.....            3  UN1150               II  3.........                T14  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Dichlorofluoromethane or           2.2  UN1029                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 212.                                                                                                                                                                
 ......  Dichloroisocyanuric acid,          5.1  UN2465               II  5.1.......                 28  152...........  212.......  240.......         5 kg        25 kg  A                  13
          dry or                                                                                                                                                                                
          Dichloroisocyanuric acid                                                                                                                                                              
          salts.                                                                                                                                                                                
 ......  Dichloroisopropyl ether..          6.1  UN2490               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  B                    
 ......  Dichloromethane..........          6.1  UN1593               II  6.1.......           N36, T13  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dichloropentanes.........            3  UN1152               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dichlorophenyl                     6.1  UN2250               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A             25, 40,
          isocyanates.                                                                                                                                                                        48
 ......  Dichlorophenyltrichlorosi            8  UN1766               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
          lane.                                                                                 T8, T26                                                                                         
 ......  1,2-Dichloropropane......            3  UN1279               II  3.........             N36,T1  150...........  202.......  242.......          5 L         60 L  B             .......
 ......  1,3-Dichloropropanol-2...          6.1  UN2750               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A              12, 40
 ......  Dichloropropene and        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          propylene dichloride                                                                                                                                                                  
          mixture, see Propylene                                                                                                                                                                
          dichloride.                                                                                                                                                                           
 ......  Dichloropropenes.........            3  UN2047               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T8  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dichlorosilane...........          2.3  UN2189                   2.3, 2.1,          2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D              17, 40
                                                                           8.                                                                                                                   

[[Page 150]]

                                                                                                                                                                                                
 ......  1,2-Dichloro-1,1,2,2-              2.2  UN1958                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Tetrafluoroethane or                                                                                                                                                                  
          Refrigerant gas R 114.                                                                                                                                                                
 ......  Dichlorovinylchloroarsine    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Dicycloheptadiene, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          2,5-Norbornadiene.                                                                                                                                                                    
 ......  Dicyclohexylamine........            8  UN2565               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Dicyclohexylammonium               4.1  UN2687               II  4.1.......                     151...........  213.......  240.......        25 kg       100 kg  A                  48
          nitrite.                                                     I                                                                                                                        
 ......  Dicyclopentadiene........            3  UN2048               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Didymium nitrate.........          5.1  UN1465               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
D......  Dieldrin.................          6.1  NA2761               II  6.1.......                     None..........  212.......  242.......       0.5 kg         5 kg  A                  40
D......  Diesel fuel..............            3  NA1993               II  None......                 B1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Diethanol nitrosamine        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dinitrate (dry).                                                                                                                                                                      
 ......  Diethoxymethane..........            3  UN2373               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  3,3-Diethoxypropene......            3  UN2374               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Diethyl carbonate........            3  UN2366               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Diethyl cellosolve, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethylene glycol diethyl                                                                                                                                                               
          ether.                                                                                                                                                                                
 ......  Diethyl ether or Ethyl               3  UN1155                I  3.........                T21  150...........  201.......  243.......          1 L         30 L  E                  40
          ether.                                                                                                                                                                                
 ......  Diethyl ketone...........            3  UN1156               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Diethyl                      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxydicarbonate, with                                                                                                                                                               
          more than 27 percent in                                                                                                                                                               
          solution.                                                                                                                                                                             
 ......  Diethyl sulfate..........          6.1  UN1594               II  6.1.......          B101, T14  None..........  202.......  243.......          5 L         60 L  C                    
 ......  Diethyl sulfide..........            3  UN2375               II  3.........          B101, T14  None..........  202.......  243.......          1 L         60 L  E                    
 ......  Diethylamine.............            3  UN1154               II  3, 8......      B101, N34, T8  None..........  202.......  243.......          1 L          5 L  E                  40
 ......  2-Diethylaminoethanol....            8  UN2686               II  8,3.......        B2,T15, T26  None..........  202.......  243.......          1 L         30 L  A             .......
 ......  Diethylaminopropylamine..            3  UN2684               II  3, 8......             B1, T8  150...........  203.......  242.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  N,N-Diethylaniline.......          6.1  UN2432               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Diethylbenzene...........            3  UN2049               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Diethyldichlorosilane....            8  UN1767               II  8, 3......      A7, B6, B100,  None..........  202.......  243.......    Forbidden         30 L  C                  40
                                                                                           N34, T8, T26                                                                                         
 ......  Diethylene glycol            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dinitrate.                                                                                                                                                                            
 ......  Diethyleneglycol                  1.1D  UN0075               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             1E, 4E,
          dinitrate, desensitized                                                                                                                                                            21E
          with not less than 25                                                                                                                                                                 
          percent non-volatile                                                                                                                                                                  
          water-insoluble                                                                                                                                                                       
          phlegmatizer, by mass.                                                                                                                                                                
 ......  Diethylenetriamine.......            8  UN2079               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                  40
 ......  N,N-                                 8  UN2685               II  8, 3......                 T8  None..........  202.......  243.......          1 L         30 L  A                    
          Diethylethylenediamine.                                                                                                                                                               
 ......  Diethylgold bromide......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Diethylthiophosphoryl                8  UN2751               II  8.........             B2, T8  None..........  212.......  240.......        15 kg        50 kg  C                  40
          chloride.                                                                                                                                                                             

[[Page 151]]

                                                                                                                                                                                                
 ......  Diethylzinc..............          4.2  UN1366                I  4.2.......      B11, T28, T40  None..........  181.......  244.......    Forbidden    Forbidden  D                  18
 ......  Difluorochloroethanes,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see 1-Chloro-1,1-                                                                                                                                                                     
          difluoroethanes.                                                                                                                                                                      
 ......  1,1-Difluoroethane or              2.1  UN1030                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
          Refrigerant gas R 152a.                                                                                                                                                               
 ......  1,1-Difluoroethylene or            2.1  UN1959                   2.1.......                     306...........  304.......  None......    Forbidden       150 kg  E                  40
          Refrigerant gas R 1132a.                                                                                                                                                              
 ......  Difluoromethane or                 2.1  UN3252                   2.1.......                     306...........  302.......  314, 315..    Forbidden       150 kg  D                  40
          Refrigerant gas R 32.                                                                                                                                                                 
 ......  Difluorophosphoric acid,             8  UN1768               II  8.........    A6, A7, B2, N5,  None..........  202.......  242.......          1 L         30 L  A                  40
          anhydrous.                                                                       N34, T9, T27                                                                                         
 ......  2,3-Dihydropyran.........            3  UN2376               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                    
 ......  1,8-Dihydroxy-2,4,5,7-       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetranitroanthraquinone                                                                                                                                                               
          (chrysamminic acid).                                                                                                                                                                  
 ......  Diiodoacetylene..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Diisobutyl ketone........            3  UN1157               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Diisobutylamine..........            3  UN2361               II  3, 8......             B1, T1  150...........  203.......  242.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Diisobutylene, isomeric              3  UN2050               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
          compounds.                                                                                                                                                                            
 ......  Diisooctyl acid phosphate            8  UN1902               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Diisopropyl ether........            3  UN1159               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  E                  40
 ......  Diisopropylamine.........            3  UN1158               II  3, 8......           B101, T8  None..........  202.......  243.......          1 L          5 L  B                    
 ......  Diisopropylbenzene           Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hydroperoxide, with more                                                                                                                                                              
          than 72 percent in                                                                                                                                                                    
          solution.                                                                                                                                                                             
 ......  Diketene, inhibited......          6.1  UN2521                I   6.1, 3...   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D              40, 49
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  1,2-Dimethoxyethane......            3  UN2252               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  1,1-Dimethoxyethane......            3  UN2377               II  3.........                T13  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Dimethyl carbonate.......            3  UN1161               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Dimethyl                   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chlorothiophosphate, see                                                                                                                                                              
          Dimethyl thiophosphoryl                                                                                                                                                               
          chloride.                                                                                                                                                                             
 ......  2,5-Dimethyl-2,5-            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dihydroperoxy hexane,                                                                                                                                                                 
          with more than 82                                                                                                                                                                     
          percent with water.                                                                                                                                                                   
 ......  Dimethyl disulfide.......            3  UN2381               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Dimethyl ether...........          2.1  UN1033                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Dimethyl-N-propylamine...            3  UN2266               II  3, 8......           T14, T26  None..........  202.......  243.......          1 L          5 L  B                  40
 ......  Dimethyl sulfate.........          6.1  UN1595                I  6.1, 8....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Dimethyl sulfide.........            3  UN1164               II  3.........          B100, T14  None..........  202.......  242.......          5 L         60 L  E                  40
 ......  Dimethyl thiophosphoryl            6.1  UN2267               II  6.1, 8....                 T7  None..........  202.......  243.......          1 L         30 L  B                  25
          chloride.                                                                                                                                                                             
 ......  Dimethylamine, anhydrous.          2.1  UN1032                   2.1.......                     None..........  304.......  314, 315..    Forbidden       150 kg  D                  40
 ......  Dimethylamine solution...            3  UN1160               II  3, 8......            T8, T34  None..........  202.......  243.......          1 L          5 L  B                    
 ......  2-                                   3  UN2378               II  3, 6.1....                 T8  None..........  202.......  243.......          1 L         60 L  A              26, 40
          Dimethylaminoacetonitril                                                                                                                                                              
          e.                                                                                                                                                                                    
 ......  2-Dimethylaminoethanol...            8  UN2051               II  8, 3......             B2, T8  154...........  202.......  243.......          1 L         30 L  A                    

[[Page 152]]

                                                                                                                                                                                                
 ......  2-Dimethylaminoethyl               6.1  UN3302               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  D                  25
          acrylate.                                                                                                                                                                             
 ......  2-Dimethylaminoethyl               6.1  UN2522               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  B                  40
          methacrylate.                                                                                                                                                                         
 ......  N,N-Dimethylaniline......          6.1  UN2253               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                    
 ......  2,3-Dimethylbutane.......            3  UN2457               II  3.........                T13  150...........  202.......  242.......          5 L         60 L  E                    
 ......  1,3-Dimethylbutylamine...            3  UN2379               II  3, 8......                 T8  None..........  202.......  243.......          1 L          5 L  B                    
 ......  Dimethylcarbamoyl                    8  UN2262               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                  40
          chloride.                                                                                                                                                                             
 ......  Dimethylcyclohexanes.....            3  UN2263               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Dimethylcyclohexylamine..            8  UN2264               II  8, 3......             B2, T8  154...........  202.......  243.......          1 L         30 L  A                  40
 ......  Dimethyldichlorosilane...            3  UN1162               II  3, 8......      B77, T15, T26  None..........  202.......  243.......    Forbidden    Forbidden  B                  40
 ......  Dimethyldiethoxysilane...            3  UN2380               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Dimethyldioxanes.........            3  UN2707               II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  N,N-Dimethylformamide....            3  UN2265               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dimethylhexane               Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dihydroperoxide (dry).                                                                                                                                                                
 ......  Dimethylhydrazine,                 6.1  UN2382                I  6.1, 3....    2, A7, B9, B14,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
          symmetrical.                                                                   B32, B74, B77,                                                                                         
                                                                                          T38, T43, T45                                                                                         
 ......  Dimethylhydrazine,                 6.1  UN1163                I  6.1, 3, 8.   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             21, 38,
          unsymmetrical.                                                                 B74, T38, T43,                                                                                  40, 100
                                                                                                    T45                                                                                         
 ......  2,2-Dimethylpropane......          2.1  UN2044                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
 ......  Dimethylzinc.............          4.2  UN1370                I  4.2.......     B11, B16, T28,  None..........  181.......  244.......    Forbidden    Forbidden  D                  18
                                                                                               T29, T40                                                                                         
 ......  Dinitro-o-cresol, solid..          6.1  UN1598               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Dinitro-o-cresol,                  6.1  UN1598               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
          solution.                                                                                                                                                                             
 ......  1,3-Dinitro-5,5-dimethyl     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hydantoin.                                                                                                                                                                            
 ......  Dinitro-7,8-                 Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dimethylglycoluril (dry).                                                                                                                                                             
 ......  1,3-Dinitro-4,5-             Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dinitrosobenzene.                                                                                                                                                                     
 ......  1,4-Dinitro-1,1,4,4-         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetramethylolbutanetetra                                                                                                                                                              
          nitrate (dry).                                                                                                                                                                        
 ......  2,4-Dinitro-1,3,5-           Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trimethylbenzene.                                                                                                                                                                     
 ......  Dinitroanilines..........          6.1  UN1596               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                  91
 ......  Dinitrobenzenes, liquid..          6.1  UN1597               II  6.1.......            11, T14  None..........  202.......  243.......          5 L         60 L  A                  91
 ......  Dinitrobenzenes, solid...          6.1  UN1597               II  6.1.......                 11  None..........  212.......  242.......        25 kg       100 kg  A                  91
 ......  Dinitrochlorobenzene, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorodinitrobenzene.                                                                                                                                                                 

[[Page 153]]

                                                                                                                                                                                                
 ......  1,2-Dinitroethane........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1,1-Dinitroethane (dry)..    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Dinitrogen tetroxide.....          2.3  UN1067                   2.3, 5.1,    1, B7, B14, B45,  None..........  336.......  314.......    Forbidden    Forbidden  D             40, 89,
                                                                           8.            B46, B61, B66,                                                                                       90
                                                                                               B67, B77                                                                                         
 ......  Dinitroglycoluril or              1.1D  UN0489               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Dingu.                                                                                                                                                                                
 ......  Dinitromethane...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Dinitrophenol, dry or             1.1D  UN0076               II   1.1D, 6.1                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 15                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  Dinitrophenol solutions..          6.1  UN1599               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                  36
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                  36
                                                                       I                                                                                                                        
 ......  Dinitrophenol, wetted              4.1  UN1320                I  4.1, 6.1..  23, A8, A19, A20,  None..........  211.......  None......         1 kg        15 kg  E              28, 36
          with not less than 15                                                                     N41                                                                                         
          percent water, by mass.                                                                                                                                                               
 ......  Dinitrophenolates alkali          1.3C  UN0077               II   1.3C, 6.1                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          metals, dry or wetted                                                                                                                                                                 
          with less than 15                                                                                                                                                                     
          percent water, by mass.                                                                                                                                                               
 ......  Dinitrophenolates, wetted          4.1  UN1321                I  4.1, 6.1..  23, A8, A19, A20,  None..........  211.......  None......         1 kg        15 kg  E              28, 36
          with not less than 15                                                                     N41                                                                                         
          percent water, by mass.                                                                                                                                                               
 ......  Dinitropropylene glycol..    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Dinitroresorcinol, dry or         1.1D  UN0078               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 15                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  2,4-Dinitroresorcinol        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (heavy metal salts of)                                                                                                                                                                
          (dry).                                                                                                                                                                                
 ......  4,6-Dinitroresorcinol        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (heavy metal salts of)                                                                                                                                                                
          (dry).                                                                                                                                                                                
 ......  Dinitroresorcinol, wetted          4.1  UN1322                I  4.1.......  23, A8, A19, A20,  None..........  211.......  None......         1 kg        15 kg  E              28, 36
          with not less than 15                                                                     N41                                                                                         
          percent water, by mass.                                                                                                                                                               
 ......  3,5-Dinitrosalicylic acid    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (lead salt) (dry).                                                                                                                                                                    
 ......  Dinitrosobenzene.........         1.3C  UN0406               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Dinitrosobenzylamidine       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          and salts of (dry).                                                                                                                                                                   
 ......  2,2-Dinitrostilbene......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Dinitrotoluenes, liquid..          6.1  UN2038               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                    
 ......  Dinitrotoluenes, molten..          6.1  UN1600               II  6.1.......          B100, T14  None..........  202.......  243.......    Forbidden    Forbidden  C                    
 ......  Dinitrotoluenes, solid...          6.1  UN2038               II  6.1.......                 T8  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  1,9-Dinitroxy                Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          pentamethylene-2,4, 6,8-                                                                                                                                                              
          tetramine (dry).                                                                                                                                                                      
 ......  Dioxane..................            3  UN1165               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Dioxolane................            3  UN1166               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Dipentene................            3  UN2052               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Diphenylamine                      6.1  UN1698                I  6.1.......                     None..........  201.......  None......    Forbidden    Forbidden  D                  40
          chloroarsine.                                                                                                                                                                         
 ......  Diphenylchloroarsine,              6.1  UN1699                I  6.1.......      A8, B14, B32,  None..........  201.......  243.......    Forbidden         30 L  D                  40
          liquid.                                                                              N33, N34                                                                                         
 ......  Diphenylchloroarsine,              6.1  UN1699                I  6.1.......      A8, B14, B32,  None..........  211.......  242.......    Forbidden        15 kg  D                  40
          solid.                                                                               N33, N34                                                                                         

[[Page 154]]

                                                                                                                                                                                                
 ......  Diphenyldichlorosilane...            8  UN1769               II  8.........   A7, B2, N34, T8,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                    T26                                                                                         
I......  Diphenylmethane-                   6.1  UN2489               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A                  48
          4,4'diisocyanate.                                            I                                                                                                                        
 ......  Diphenylmethyl bromide...            8  UN1770               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  D                  40
 ......  Dipicryl sulfide, dry or          1.1D  UN0401               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 10                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  Dipicryl sulfide, wetted           4.1  UN2852                I  4.1.......            A2, N41  None..........  211.......  None......    Forbidden       0.5 kg  D                  28
          with not less than 10                                                                                                                                                                 
          percent water, by mass.                                                                                                                                                               
 ......  Dipicrylamine, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hexanitrodiphenylamine.                                                                                                                                                               
 ......  Dipropionyl peroxide,        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          with more than 28                                                                                                                                                                     
          percent in solution.                                                                                                                                                                  
 ......  Di-n-propyl ether........            3  UN2384               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Dipropyl ketone..........            3  UN2710               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dipropylamine............            3  UN2383               II  3, 8......                 T8  None..........  202.......  243.......          1 L          5 L  B                    
 ......  Disinfectant, liquid,                8  UN1903                I  8.........       A7, B10, T42  None..........  201.......  243.......        0.5 L        2.5 L  B             .......
          corrosive, n.o.s.                                                                                                                                                                     
 ......  Disinfectants, liquid,               8  UN1903               II  8.........                 B2  154...........  202.......  242.......          1 L         30 L  B                    
          corrosive n.o.s.                                                                                                                                                                      
         .........................  ...........  ...................  II  8.........                     154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Disinfectants, liquid,             6.1  UN3142                I  6.1.......            A4, T42  None..........  201.......  243.......          1 L         30 L  A                  40
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                  40
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Disinfectants, solid,              6.1  UN1601               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Disodium trioxosilicate..            8  UN3253               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Dispersant gases, n.o.s.   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Refrigerant gases,                                                                                                                                                                
          n.o.s.                                                                                                                                                                                
 ......  Dithiocarbamate                      3  UN2772                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          flammable, toxic, flash                                                                                                                                                               
          point less than 23                                                                                                                                                                    
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Dithiocarbamate                    6.1  UN3006                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Dithiocarbamate                    6.1  UN3005                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic, flammable,                                                                                                                                                                     
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40

[[Page 155]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1, 3....                T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Dithiocarbamate                    6.1  UN2771                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          pesticides, solid, toxic.                                                                                                                                                             
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Divinyl ether, inhibited.            3  UN1167                I  3.........                T14  None..........  201.......  243.......          1 L         60 L  E                  40
D......  Dodecylbenzenesulfonic               8  NA2584               II  8.........                 B2  154...........  202.......  242.......          1 L         30 L  B                   9
          acid.                                                                                                                                                                                 
 ......  Dodecyltrichlorosilane...            8  UN1771               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                T8, T26                                                                                         
 ......  Dry ice, see Carbon        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dioxide, solid.                                                                                                                                                                       
 ......  Dyes, liquid, corrosive,             8  UN2801                I  8.........            11, B10  None..........  201.......  243.......        0.5 L        2.5 L  A             .......
          n.o.s. or Dye                                                                                                                                                                         
          intermediates, liquid,                                                                                                                                                                
          corrosive, n.o.s..                                                                                                                                                                    
         .........................  ...........  ...................  II  8.........        11, B2, T14  154...........  202.......  242.......          1 L         30 L  A                    
         .........................  ...........  ...................  II  8.........             11, T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Dyes, liquid, toxic,               6.1  UN1602               II  6.1.......                     None..........  202.......  243.......          5 L         60 L  A                    
          n.o.s or Dye                                                                                                                                                                          
          intermediates, liquid,                                                                                                                                                                
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Dyes, solid, corrosive,              8  UN3147               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
          n.o.s. or Dye                                                                                                                                                                         
          intermediates, solid,                                                                                                                                                                 
          corrosive, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Dyes, solid, toxic,                6.1  UN3143                I  6.1.......                 A5  None..........  211.......  242.......         5 kg        50 kg  A                    
          n.o.s. or Dye                                                                                                                                                                         
          intermediates, solid,                                                                                                                                                                 
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Dynamite, see Explosive,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          blasting, type A.                                                                                                                                                                     
 ......  Electrolyte (acid or       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          alkali) for batteries,                                                                                                                                                                
          see Battery fluid, acid                                                                                                                                                               
          or Battery fluid, alkali.                                                                                                                                                             
 ......  Elevated temperature                 3  UN3256               II  3.........                 T1  None..........  None......  247.......    Forbidden    Forbidden  A                    
          liquid, flammable,                                           I                                                                                                                        
          n.o.s., with flash point                                                                                                                                                              
          above 37.8 C, at or                                                                                                                                                                   
          above its flash point.                                                                                                                                                                
 ......  Elevated temperature                 9  UN3257               II   9........                 T1   None.........  None......  247.......    Forbidden    Forbidden  A                  85
          liquid, n.o.s., at or                                        I                                                                                                                        
          above 100 C and below                                                                                                                                                                 
          its flash point.                                                                                                                                                                      
 ......  Elevated temperature                 9  UN3258               II   9........                     247(h) (4)....  None......  247.......    Forbidden    Forbidden  A                  85
          solid, n.o.s., at or                                         I                                                                                                                        
          above 240 C, see section                                                                                                                                                              
          173.247(h)(4).                                                                                                                                                                        
 ......  Engines, internal                    9  UN3166                    9........                     220...........  220.......  None......    Forbidden     No limit  A                    
          combustion, including                                                                                                                                                                 
          when fitted in machinery                                                                                                                                                              
          or vehicles.                                                                                                                                                                          
 ......  Environmentally hazardous            9  UN3082               II   9........              8, T1  155...........  203.......  241.......         None         None  A                    
          substances, liquid,                                          I                                                                                                                        
          n.o.s.                                                                                                                                                                                
 ......  Environmentally hazardous            9  UN3077               II   9........             8, B54  155...........  213.......  240.......         None         None  A                    
          substances, solid, n.o.s.                                    I                                                                                                                        
 ......  Epibromohydrin...........          6.1  UN2558                I  6.1, 3....           T18, T26  None..........  201.......  243.......    Forbidden    Forbidden  D                  40
 ......  Epichlorohydrin..........          6.1  UN2023               II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  A                  40

[[Page 156]]

                                                                                                                                                                                                
 ......  1,2-Epoxy-3-ethoxypropane            3  UN2752               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Esters, n.o.s............            3  UN3272               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T7  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Etching acid, liquid,      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          n.o.s., see Hydrofluoric                                                                                                                                                              
          acid, solution etc.                                                                                                                                                                   
 ......  Ethane...................          2.1  UN1035                   2.1.......                     306...........  304.......  302.......    Forbidden       150 kg  E                  40
D......  Ethane-Propane mixture,            2.1  NA1961                   2.1.......                     None..........  316.......  314, 315..    Forbidden    Forbidden  D                  40
          refrigerated liquid.                                                                                                                                                                  
 ......  Ethane, refrigerated               2.1  UN1961                   2.1.......                     None..........  None......  315.......    Forbidden    Forbidden  D                  40
          liquid.                                                                                                                                                                               
 ......  Ethanol amine dinitrate..    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ethanol or Ethyl alcohol             3  UN1170               II  3.........             24, T1  150...........  202.......  242.......          5 L         60 L  A                    
          or Ethanol solutions or                                                                                                                                                               
          Ethyl alcohol solutions.                                                                                                                                                              
         .........................  ...........  ...................  II  3.........         24, B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethanolamine or                      8  UN2491               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
          Ethanolamine solutions.                                      I                                                                                                                        
 ......  Ether, see Diethyl ether.  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ethers, n.o.s............            3  UN3271               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T7   150..........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethyl acetate............            3  UN1173               II  3.........                 T2  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Ethyl acrylate, inhibited            3  UN1917               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Ethyl alcohol, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethanol.                                                                                                                                                                              
 ......  Ethyl aldehyde, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Acetaldehyde.                                                                                                                                                                         
 ......  Ethyl amyl ketone........            3  UN2271               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  N-Ethyl-N-benzylaniline..          6.1  UN2274               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethyl borate.............            3  UN1176               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Ethyl bromide............          6.1  UN1891               II  6.1.......          B100, T17  None..........  202.......  243.......          5 L         60 L  B              40, 85
 ......  Ethyl bromoacetate.......          6.1  UN1603               II  6.1, 3....                T14  None..........  202.......  243.......    Forbidden    Forbidden  D                  40
 ......  Ethyl butyl ether........            3  UN1179               II  3.........       B1, B101, T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Ethyl butyrate...........            3  UN1180               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethyl chloride...........          2.1  UN1037                   2.1.......           B43, B77  None..........  322.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Ethyl chloroacetate......          6.1  UN1181               II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  A                    
 ......  Ethyl chloroformate......          6.1  UN1182                I  6.1, 3, 8.     2, A3, A6, A7,  None..........  227.......  244.......    Forbidden    Forbidden  D             21, 40,
                                                                                          B9, B14, B32,                                                                                      100
                                                                                         B74, N34, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Ethyl 2-chloropropionate.            3  UN2935               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 157]]

                                                                                                                                                                                                
+......  Ethyl chlorothioformate..            8  UN2826               II  8, 6.1, 3.   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  A                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Ethyl crotonate..........            3  UN1862               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Ethyl cyanoacetate.......          6.1  UN2666               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A                  26
                                                                       I                                                                                                                        
 ......  Ethyl ether, see Diethyl   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ether.                                                                                                                                                                                
 ......  Ethyl fluoride or                  2.1  UN2453                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          Refrigerant gas R 161.                                                                                                                                                                
 ......  Ethyl formate............            3  UN1190               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Ethyl hydroperoxide......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ethyl isobutyrate........            3  UN2385               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
+......  Ethyl isocyanate.........            3  UN2481                I  3, 6.1....    1, A7, B9, B14,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B30, B72, T38,                                                                                         
                                                                                               T43, T44                                                                                         
 ......  Ethyl lactate............            3  UN1192               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethyl mercaptan..........            3  UN2363                I  3.........                T21  None..........  201.......  243.......    Forbidden         30 L  E             95, 102
 ......  Ethyl methacrylate.......            3  UN2277               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Ethyl methyl ether.......          2.1  UN1039                   2.1.......                B43  None..........  201.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Ethyl methyl ketone or               3  UN1193               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
          Methyl ethyl ketone.                                                                                                                                                                  
 ......  Ethyl nitrite solutions..            3  UN1194                I  3, 6.1....                     None..........  201.......  None......    Forbidden    Forbidden  E             40, 105
 ......  Ethyl orthoformate.......            3  UN2524               II  3.........             B1, T7  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethyl oxalate............          6.1  UN2525               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethyl perchlorate........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
D......  Ethyl phosphonothioic              6.1  NA2927                I  6.1, 8....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
          dichloride, anhydrous.                                                         B74, T38, T43,                                                                                       95
                                                                                                    T45                                                                                         
D......  Ethyl phosphonous                  6.1  NA2845                I  6.1, 4.2..   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  18
          dichloride, anhydrous                                                          B74, T38, T43,                                                                                         
          pyrophoric liquid.                                                                        T45                                                                                         
D......  Ethyl                              6.1  NA2927                I  6.1, 8....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
          phosphorodichloridate.                                                         B74, T38, T43,                                                                                       95
                                                                                                    T45                                                                                         
 ......  Ethyl propionate.........            3  UN1195               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Ethyl propyl ether.......            3  UN2615               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Ethyl silicate, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tetraethyl silicate.                                                                                                                                                                  
 ......  Ethylacetylene, inhibited          2.1  UN2452                   2.1.......                     None..........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Ethylamine...............          2.1  UN1036                   2.1.......                B77  None..........  321.......  314, 315..    Forbidden       150 kg  D                  40
 ......  Ethylamine, aqueous                  3  UN2270               II  3, 8......                T14  None..........  202.......  243.......          1 L          5 L  B                  40
          solution with not less                                                                                                                                                                
          than 50 percent but not                                                                                                                                                               
          more than 70 percent                                                                                                                                                                  
          ethylamine.                                                                                                                                                                           
 ......  N-Ethylaniline...........          6.1  UN2272               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  2-Ethylaniline...........          6.1  UN2273               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ethylbenzene.............            3  UN1175               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  N-Ethylbenzyltoluidines            6.1  UN2753               II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                    
          liquid.                                                      I                                                                                                                        

[[Page 158]]

                                                                                                                                                                                                
 ......  N-Ethylbenzyltoluidines            6.1  UN2753               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
          solid.                                                       I                                                                                                                        
 ......  2-Ethylbutanol...........            3  UN2275               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  2-Ethylbutyl acetate.....            3  UN1177               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  2-Ethylbutyraldehyde.....            3  UN1178               II  3.........             B1, T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Ethyldichloroarsine......          6.1  UN1892                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Ethyldichlorosilane......          4.3  UN1183                I  4.3, 8, 3.   A2, A3, A7, N34,  None..........  201.......  244.......    Forbidden          1 L  D             21, 28,
                                                                                               T18, T26                                                                                  40, 49,
                                                                                                                                                                                             100
 ......  Ethylene, acetylene and            2.1  UN3138                   2.1.......                     None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          propylene in mixture,                                                                                                                                                                 
          refrigerated liquid with                                                                                                                                                              
          at least 71.5 percent                                                                                                                                                                 
          ethylene with not more                                                                                                                                                                
          than 22.5 percent                                                                                                                                                                     
          acetylene and not more                                                                                                                                                                
          than 6 percent propylene.                                                                                                                                                             
 ......  Ethylene chlorohydrin....          6.1  UN1135                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Ethylene, compressed.....          2.1  UN1962                   2.1.......                     306...........  304.......  302.......    Forbidden       150 kg  E                  40
 ......  Ethylene diamine             Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          diperchlorate.                                                                                                                                                                        
 ......  Ethylene dibromide.......          6.1  UN1605                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Ethylene dibromide and     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methyl bromide liquid                                                                                                                                                                 
          mixtures, see Methyl                                                                                                                                                                  
          bromide and ethylene                                                                                                                                                                  
          dibromide, liquid                                                                                                                                                                     
          mixtures.                                                                                                                                                                             
 ......  Ethylene dichloride......            3  UN1184               II  3, 6.1....                T14  None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Ethylene glycol diethyl              3  UN1153               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          ether.                                                       I                                                                                                                        
 ......  Ethylene glycol dinitrate    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Ethylene glycol monoethyl            3  UN1171               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          ether.                                                       I                                                                                                                        
 ......  Ethylene glycol monoethyl            3  UN1172               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          ether acetate.                                               I                                                                                                                        
 ......  Ethylene glycol                      3  UN1188               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          monomethyl ether.                                            I                                                                                                                        
 ......  Ethylene glycol                      3  UN1189               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          monomethyl ether acetate.                                    I                                                                                                                        

[[Page 159]]

                                                                                                                                                                                                
 ......  Ethylene oxide and carbon          2.3  UN3300                   2.3, 2.1..                  4  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          dioxide mixture with                                                                                                                                                                  
          more than 87 percent                                                                                                                                                                  
          ethylene oxide.                                                                                                                                                                       
 ......  Ethylene oxide and carbon          2.1  UN1041                   2.1.......                     306...........  304.......  314, 315..    Forbidden        25 kg  B                  40
          dioxide mixtures with                                                                                                                                                                 
          more than 9 percent but                                                                                                                                                               
          not more than 87 percent                                                                                                                                                              
          ethylene oxide.                                                                                                                                                                       
 ......  Ethylene oxide and carbon          2.2  UN1952                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          dioxide mixtures with                                                                                                                                                                 
          not more than 9 percent                                                                                                                                                               
          ethylene oxide.                                                                                                                                                                       
 ......  Ethylene oxide and                 2.2  UN3297                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          chlorotetrafluoroethane                                                                                                                                                               
          mixture with not more                                                                                                                                                                 
          than 8.8 percent                                                                                                                                                                      
          ethylene oxide.                                                                                                                                                                       
 ......  Ethylene oxide and                 2.2  UN3070                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          dichlorodifluoromethane                                                                                                                                                               
          mixture, with not more                                                                                                                                                                
          than 12.5 percent                                                                                                                                                                     
          ethylene oxide.                                                                                                                                                                       
 ......  Ethylene oxide and                 2.2  UN3298                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          pentafluoroethane                                                                                                                                                                     
          mixture with not more                                                                                                                                                                 
          than 7.9 percent                                                                                                                                                                      
          ethylene oxide.                                                                                                                                                                       
 ......  Ethylene oxide and                   3  UN2983                I  3, 6.1....   5, A11, N4, N34,  None..........  201.......  243.......    Forbidden         30 L  E                  40
          propylene oxide                                                                      T24, T29                                                                                         
          mixtures, with not more                                                                                                                                                               
          than 30 percent ethylene                                                                                                                                                              
          oxide.                                                                                                                                                                                
 ......  Ethylene oxide and                 2.2  UN3299                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          tetrafluoroethane                                                                                                                                                                     
          mixture with not more                                                                                                                                                                 
          than 5.6 percent                                                                                                                                                                      
          ethylene oxide.                                                                                                                                                                       
 ......  Ethylene oxide or                  2.3  UN1040                   2.3, 2.1..                  4  None..........  323.......  323.......    Forbidden        25 kg  D                  40
          Ethylene oxide with                                                                                                                                                                   
          nitrogen up to a total                                                                                                                                                                
          pressure of 1MPa (10                                                                                                                                                                  
          bar) at 50 degrees C.                                                                                                                                                                 
 ......  Ethylene, refrigerated             2.1  UN1038                   2.1.......                     None..........  316.......  318, 319..    Forbidden    Forbidden  D                  40
          liquid (cryogenic                                                                                                                                                                     
          liquid).                                                                                                                                                                              
 ......  Ethylenediamine..........            8  UN1604               II  8, 3......                T14  154...........  202.......  243.......          1 L         30 L  A                  40
 ......  Ethyleneimine, inhibited.          6.1  UN1185                I  6.1, 3....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B72, B77, N25,                                                                                         
                                                                                         N32, T38, T43,                                                                                         
                                                                                                    T44                                                                                         
 ......  Ethylhexaldehyde, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Octyl aldehydes etc.                                                                                                                                                                  
 ......  2-Ethylhexyl                       6.1  UN2748               II  6.1, 8....                T12  None..........  202.......  243.......          1 L         30 L  A             12, 13,
          chloroformate.                                                                                                                                                                 21, 25,
                                                                                                                                                                                         40, 100
 ......  2-Ethylhexylamine........            3  UN2276               II  3, 8......             B1, T2  150...........  203.......  242.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Ethylphenyldichlorosilane            8  UN2435               II  8.........   A7, B2, N34, T8,  None..........  202.......  242.......    Forbidden         30 L  C                    
                                                                                                    T26                                                                                         
 ......  1-Ethylpiperidine........            3  UN2386               II  3, 8......                 T8  None..........  202.......  243.......          1 L          5 L  B                    
 ......  N-Ethyltoluidines........          6.1  UN2754               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
 ......  Ethyltrichlorosilane.....            3  UN1196               II  3, 8......     A7, B100, N34,  None..........  202.......  243.......          1 L          5 L  B                  40
                                                                                               T15, T26                                                                                         

[[Page 160]]

                                                                                                                                                                                                
 ......  Etiologic agent, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Infectious substances,                                                                                                                                                                
          etc).                                                                                                                                                                                 
 ......  Explosive articles, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Articles, explosive ,                                                                                                                                                                 
          n.o.s. etc.                                                                                                                                                                           
 ......  Explosive, blasting, type         1.1D  UN0081               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             1E, 5E,
          A.                                                                                                                                                                                 21E
 ......  Explosive, blasting, type         1.1D  UN0082               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          B.                                                                                                                                                                                    
 ......  Explosive, blasting, type         1.5D  UN0331               II   1.5D.....           105, 106  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          B or Agent blasting,                                                                                                                                                                  
          Type B.                                                                                                                                                                               
 ......  Explosive, blasting, type         1.1D  UN0083               II   1.1D.....                123  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          C.                                                                                                                                                                                    
 ......  Explosive, blasting, type         1.1D  UN0084               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          D.                                                                                                                                                                                    
 ......  Explosive, blasting, type         1.1D  UN0241               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             1E, 5E,
          E.                                                                                                                                                                                 19E
 ......  Explosive, blasting, type         1.5D  UN0332               II   1.5D.....           105, 106  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          E or Agent blasting,                                                                                                                                                                  
          Type E.                                                                                                                                                                               
 ......  Explosive, forbidden. See    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sec. 173.54.                                                                                                                                                                          
 ......  Explosive substances, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Substances, explosive,                                                                                                                                                                
          n.o.s. etc.                                                                                                                                                                           
 ......  Explosives, slurry, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Explosive, blasting,                                                                                                                                                                  
          type E.                                                                                                                                                                               
 ......  Explosives, water gels,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Explosive, blasting,                                                                                                                                                              
          type E.                                                                                                                                                                               
 ......  Extracts, aromatic,                  3  UN1169               II  3.........            T7, T30  150...........  202.......  242.......          5 L         60 L  B                    
          liquid.                                                                                                                                                                               
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Extracts, flavoring,                 3  UN1197               II  3.........            T7, T30  150...........  202.......  242.......          5 L         60 L  B                    
          liquid.                                                                                                                                                                               
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Fabric with animal or      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          vegetable oil, see                                                                                                                                                                    
          Fibers or fabrics, etc.                                                                                                                                                               
 ......  Ferric arsenate..........          6.1  UN1606               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Ferric arsenite..........          6.1  UN1607               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Ferric chloride,                     8  UN1773               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
          anhydrous.                                                   I                                                                                                                        
 ......  Ferric chloride, solution            8  UN2582               II  8.........            B15, T8  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Ferric nitrate...........          5.1  UN1466               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Ferrocerium..............          4.1  UN1323               II  4.1.......            59, A19  151...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Ferrosilicon, with 30              4.3  UN1408               II  4.3, 6.1..            A1, A19  151...........  213.......  240.......        25 kg       100 kg  A             13, 40,
          percent or more but less                                     I                                                                                                                 85, 103
          than 90 percent silicon.                                                                                                                                                              
 ......  Ferrous arsenate.........          6.1  UN1608               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    

[[Page 161]]

                                                                                                                                                                                                
D......  Ferrous chloride, solid..            8  NA1759               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
D......  Ferrous chloride,                    8  NA1760               II  8.........                 B3  154...........  202.......  242.......          1 L         30 L  B                  40
          solution.                                                                                                                                                                             
 ......  Ferrous metal borings or           4.2  UN2793               II  4.2.......      A1, A19, B101  None..........  213.......  241.......        25 kg       100 kg  A                    
          Ferrous metal shavings                                       I                                                                                                                        
          or Ferrous metal                                                                                                                                                                      
          turnings or Ferrous                                                                                                                                                                   
          metal cuttings in a form                                                                                                                                                              
          liable to self-heating.                                                                                                                                                               
 ......  Fertilizer ammoniating             2.2  UN1043                   2.2.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          solution with free                                                                                                                                                                    
          ammonia.                                                                                                                                                                              
AIW....  Fibers or Fabrics, animal          4.2  UN1373               II  4.2.......                     None..........  213.......  241.......    Forbidden    Forbidden  A                    
          or vegetable or                                              I                                                                                                                        
          Synthentic, n.o.s. with                                                                                                                                                               
          animal or vegetable oil.                                                                                                                                                              
 ......  Fibers or Fabrics                  4.1  UN1353               II  4.1.......                 A1  None..........  213.......  240.......        25 kg       100 kg  D                    
          impregnated with weakly                                      I                                                                                                                        
          nitrated nitrocellulose,                                                                                                                                                              
          n.o.s.                                                                                                                                                                                
 ......  Films, nitrocellulose      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          base, from which                                                                                                                                                                      
          gelatine has been                                                                                                                                                                     
          removed; film scrap, see                                                                                                                                                              
          Celluloid scrap.                                                                                                                                                                      
 ......  Films, nitrocellulose              4.1  UN1324               II  4.1.......                     None..........  183.......  None......        25 kg       100 kg  D                  91
          base, gelatine coated                                        I                                                                                                                        
          (except scrap).                                                                                                                                                                       
 ......  Fire extinguisher                    8  UN1774               II  8.........                N41  154...........  202.......  None......          1 L         30 L  A                    
          charges, corrosive                                                                                                                                                                    
          liquid.                                                                                                                                                                               
 ......  Fire extinguisher          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          charges, expelling,                                                                                                                                                                   
          explosive, see                                                                                                                                                                        
          Cartridges, power device.                                                                                                                                                             
 ......  Fire extinguishers                 2.2  UN1044                   2.2.......                 18  309...........  309.......  None......        75 kg       150 kg  A                    
          containing compressed or                                                                                                                                                              
          liquefied gas.                                                                                                                                                                        
 ......  Firelighters, solid with           4.1  UN2623               II  4.1.......            A1, A19  None..........  213.......  None......        25 kg       100 kg  A             .......
          flammable liquid.                                            I                                                                                                                        
 ......  Fireworks................         1.1G  UN0333               II   1.1G.....                108  None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Fireworks................         1.2G  UN0334               II   1.2G.....                108  None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Fireworks................         1.3G  UN0335               II   1.3G.....                108  None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Fireworks................         1.4G  UN0336               II   1.4G.....                108  None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Fireworks................         1.4S  UN0337               II   1.4S.....                108  None..........  62........  None......        25 kg       100 kg  A                    
W......  Fish meal, stabilized or             9  UN2216               II  None......                     155...........  218.......  218.......     No limit     No limit  A                  88
          Fish scrap, stabilized.                                      I                                                                                                                        
 ......  Fish meal, unstablized or          4.2  UN1374               II  4.2.......            A1, A19  None..........  212.......  241.......        15 kg        50 kg  A                119,
          Fish scrap, unstabilized.                                                                                                                                                          120
 ......  Fissile radioactive        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          materials, see                                                                                                                                                                        
          Radioactive material,                                                                                                                                                                 
          fissile, n.o.s.                                                                                                                                                                       
 ......  Flammable compressed gas,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Compressed or                                                                                                                                                                     
          Liquefied gas,                                                                                                                                                                        
          flammable, etc.                                                                                                                                                                       
 ......  Flammable compressed gas   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (small receptacles not                                                                                                                                                                
          fitted with a dispersion                                                                                                                                                              
          device, not refillable),                                                                                                                                                              
          see Receptacles, etc.                                                                                                                                                                 
 ......  Flammable gas in           ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          lighters, see Lighters                                                                                                                                                                
          or lighter refills,                                                                                                                                                                   
          cigarettes, containing                                                                                                                                                                
          flammable gas.                                                                                                                                                                        
 ......  Flammable liquid, toxic,             3  UN3286                I  3, 6.1, 8.                     None..........  201.......  243.......    Forbidden        2.5 L  E             21, 40,
          corrosive, n.o.s.                                                                                                                                                                  100

[[Page 162]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  3, 6.1, 8.                T14  None..........  202.......  243.......          1 L          5 L  B             21, 40,
                                                                                                                                                                                             100
 ......  Flammable liquids,                   3  UN2924                I  3, 8......                T42  None..........  201.......  243.......        0.5 L        2.5 L  E                  40
          corrosive, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  3, 8......           T15, T26  None..........  202.......  243.......          1 L          5 L  B                  40
         .........................  ...........  ...................  II  3, 8......       B1, T15, T26  150...........  203.......  242.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Flammable liquids, n.o.s.            3  UN1993                I  3.........                T42  150...........  201.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........   B1, B52, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Flammable liquids, toxic,            3  UN1992                I  3, 6.1....                T42  None..........  201.......  243.......    Forbidden         30 L  E                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  3, 6.1....                T18  None..........  202.......  243.......          1 L         60 L  B                  40
         .........................  ...........  ...................  II  3, 6.1....            B1, T18  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Flammable solid,                   4.1  UN3180               II  4.1, 8....           A1, B106  151...........  212.......  242.......        15 kg        50 kg  D                  40
          corrosive, inorganic,                                                                                                                                                                 
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.1, 8....           A1, B106  151...........  213.......  242.......        25 kg       100 kg  D                  40
                                                                       I                                                                                                                        
 ......  Flammable solid,                   4.1  UN3178               II  4.1.......                 A1  151...........  212.......  240.......        15 kg        50 kg  B                    
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  B                    
                                                                       I                                                                                                                        
 ......  Flammable solid, organic,          4.1  UN3176               II  4.1.......                 T9  151...........  212.......  240.......    Forbidden    Forbidden  C                    
          molten, n.o.s.                                                                                                                                                                        
         .........................  ...........  ...................  II  4.1.......                 T9  151...........  213.......  240.......    Forbidden    Forbidden  C                    
                                                                       I                                                                                                                        
 ......  Flammable solid, toxic,            4.1  UN3179               II  4.1, 6.1..           A1, B106  151...........  212.......  242.......        15 kg        50 kg  B                  40
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.1, 6.1..           A1, B106  151...........  213.......  242.......        25 kg       100 kg  B                  40
                                                                       I                                                                                                                        
 ......  Flammable solids,                  4.1  UN2925               II  4.1, 8....           A1, B106  None..........  212.......  242.......        15 kg        50 kg  D                  40
          corrosive, organic,                                                                                                                                                                   
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.1, 8....           A1, B106  151...........  213.......  242.......        25 kg       100 kg  D                  40
                                                                       I                                                                                                                        
 ......  Flammable solids,                  4.1  UN1325               II  4.1.......                 A1  151...........  212.......  240.......        15 kg        50 kg  B                    
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  B                    
                                                                       I                                                                                                                        
 ......  Flammable solids, toxic,           4.1  UN2926               II  4.1, 6.1..           A1, B106  None..........  212.......  242.......        15 kg        50 kg  B                  40
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  4.1, 6.1..           A1, B106  151...........  213.......  242.......        25 kg       100 kg  B                  40
                                                                       I                                                                                                                        
 ......  Flares, aerial...........         1.3G  UN0093               II   1.3G.....                     None..........  62........  None......    Forbidden        75 kg  B                    
 ......  Flares, aerial...........         1.4G  UN0403               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Flares, aerial...........         1.4S  UN0404               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Flares, aerial...........         1.1G  UN0420               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Flares, aerial...........         1.2G  UN0421               II   1.2G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Flares, airplane, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Flares, aerial.                                                                                                                                                                       
 ......  Flares, signal, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cartridges, signal.                                                                                                                                                                   

[[Page 163]]

                                                                                                                                                                                                
 ......  Flares, surface..........         1.3G  UN0092               II   1.3G.....                     None..........  62........  None......    Forbidden        75 kg  B                    
 ......  Flares, surface..........         1.1G  UN0418               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Flares, surface..........         1.2G  UN0419               II   1.2G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Flares, water-activated,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Contrivances, water-                                                                                                                                                              
          activated, etc.                                                                                                                                                                       
 ......  Flash powder.............         1.1G  UN0094               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  E              1E, 5E
 ......  Flash powder.............         1.3G  UN0305               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  E              1E, 5E
 ......  Flue dusts, poisonous,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Arsenical dust.                                                                                                                                                                   
 ......  Fluoric acid, see          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hydrofluoric acid,                                                                                                                                                                    
          solution, etc.                                                                                                                                                                        
 ......  Fluorine, compressed.....          2.3  UN1045                   2.3, 5.1,                   1  None..........  302.......  None......    Forbidden    Forbidden  D             40, 89,
                                                                           8.                                                                                                                 90
 ......  Fluoroacetic acid........          6.1  UN2642                I  6.1.......               B100  None..........  211.......  242.......         1 kg        15 kg  E                    
 ......  Fluoroanilines...........          6.1  UN2941               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Fluorobenzene............            3  UN2387               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Fluoroboric acid.........            8  UN1775               II  8.........   A6, A7, B2, B15,  154...........  202.......  242.......          1 L         30 L  A                    
                                                                                      N3, N34, T15, T27                                                                                         
 ......  Fluorophosphoric acid                8  UN1776               II  8.........    A6, A7, B2, N3,  None..........  202.......  242.......          1 L         30 L  A                    
          anhydrous.                                                                       N34, T9, T27                                                                                         
 ......  Fluorosilicates, n.o.s...          6.1  UN2856               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Fluorosilicic acid.......            8  UN1778               II  8.........   A6, A7, B2, B15,  None..........  202.......  242.......          1 L         30 L  A                    
                                                                                      N3, N34, T12, T27                                                                                         
 ......  Fluorosulfonic acid......            8  UN1777                I  8.........   A3, A6, A7, A10,  None..........  201.......  243.......        0.5 L        2.5 L  D                  40
                                                                                       B6, B10, N3, T9,                                                                                         
                                                                                                    T27                                                                                         
 ......  Fluorotoluenes...........            3  UN2388               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                  40
 ......  Forbidden materials. See     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          173.21.                                                                                                                                                                               
 ......  Formaldehyde, solutions,             3  UN1198               II  3, 8......             B1, T8  150...........  203.......  242.......          5 L         60 L  A                  40
          flammable.                                                   I                                                                                                                        
 ......  Formaldehyde, solutions,             8  UN2209               II  8.........                 T1  154...........  203.......  241.......          5 L         60 L  A                    
          with not less than 25                                        I                                                                                                                        
          percent formaldehyde.                                                                                                                                                                 
 ......  Formalin, see              ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Formaldehyde, solutions.                                                                                                                                                              
 ......  Formic acid..............            8  UN1779               II  8.........        B2, B28, T8  154...........  202.......  242.......          1 L         30 L  A                  40
 ......  Fracturing devices,               1.1D  UN0099               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          explosive, without                                                                                                                                                                    
          detonators for oil wells.                                                                                                                                                             
 ......  Fuel, aviation, turbine              3  UN1863                I  3.........                 T7  150...........  201.......  243.......          1 L         30 L  E                    
          engine.                                                                                                                                                                               
         .........................  ...........  ...................  II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
D......  Fuel oil (No. 1, 2, 4, 5,            3  NA1993               II  3.........                 B1  150...........  203.......  242.......         60 L        220 L  A                    
          or 6).                                                       I                                                                                                                        
 ......  Fulminate of mercury         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Fulminate of mercury,      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          wet, see Mercury                                                                                                                                                                      
          fulminate, etc.                                                                                                                                                                       
 ......  Fulminating gold.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Fulminating mercury......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Fulminating platinum.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Fulminating silver.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         

[[Page 164]]

                                                                                                                                                                                                
 ......  Fulminic acid............    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Fumaryl chloride.........            8  UN1780               II  8.........        B2, T8, T26  154...........  202.......  242.......          1 L         30 L  C               8, 40
 ......  Furaldehydes.............          6.1  UN1199               II  6.1, 3....                T15  None..........  202.......  243.......          5 L         60 L  A             .......
 ......  Furan....................            3  UN2389                I  3.........                T18  None..........  201.......  243.......          1 L         30 L  E                  40
 ......  Furfuryl alcohol.........          6.1  UN2874               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A              26, 74
                                                                       I                                                                                                                        
 ......  Furfurylamine............            3  UN2526               II  3, 8......             B1, T1  150...........  203.......  242.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Fuse, detonating, metal    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          clad, see Cord,                                                                                                                                                                       
          detonating, metal clad.                                                                                                                                                               
 ......  Fuse, detonating, mild     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          effect, metal clad, see                                                                                                                                                               
          Cord, detonating, mild                                                                                                                                                                
          effect, metal clad.                                                                                                                                                                   
 ......  Fuse, igniter tubular             1.4G  UN0103               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          metal clad.                                                                                                                                                                           
 ......  Fuse, non-detonating              1.3G  UN0101               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          instantaneous or                                                                                                                                                                      
          quickmatch.                                                                                                                                                                           
 ......  Fuse, safety.............         1.4S  UN0105               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
D......  Fusee (railway or                  4.1  NA1325               II  4.1.......                     None..........  184.......  None......        15 kg        50 kg  B                    
          highway).                                                                                                                                                                             
 ......  Fusel oil................            3  UN1201               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Fuses, tracer, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tracers for ammunition.                                                                                                                                                               
 ......  Fuzes, combination,        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          percussion and time, see                                                                                                                                                              
          Fuzes, detonating (UN                                                                                                                                                                 
          0257, UN 0367); Fuzes,                                                                                                                                                                
          igniting (UN 0317, UN                                                                                                                                                                 
          0368).                                                                                                                                                                                
 ......  Fuzes, detonating........         1.1B  UN0106               II   1.1B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
 ......  Fuzes, detonating........         1.2B  UN0107               II   1.2B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
 ......  Fuzes, detonating........         1.4B  UN0257               II   1.4B.....                116  None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Fuzes, detonating........         1.4S  UN0367               II   1.4S.....                116  None..........  62........  None......        25 kg       100 kg  A                    
 ......  Fuzes, detonating, with           1.1D  UN0408               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          protective features.                                                                                                                                                                  
 ......  Fuzes, detonating, with           1.2D  UN0409               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          protective features.                                                                                                                                                                  
 ......  Fuzes, detonating, with           1.4D  UN0410               II   1.4D.....                116  None..........  62........  None......    Forbidden        75 kg  A                 24E
          protective features.                                                                                                                                                                  
 ......  Fuzes, igniting..........         1.3G  UN0316               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Fuzes, igniting..........         1.4G  UN0317               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Fuzes, igniting..........         1.4S  UN0368               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Galactsan trinitrate.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Gallium..................            8  UN2803               II  8.........                     None..........  162.......  240.......        20 kg        20 kg  B                  48
                                                                       I                                                                                                                        

[[Page 165]]

                                                                                                                                                                                                
 ......  Gas cartridges,                    2.1  UN2037               ..  2.1.......  .................  306...........  304.......  None......         1 kg        15 kg  B                  40
          (flammable) without a                                                                                                                                                                 
          release device, non-re-                                                                                                                                                               
          fillable.                                                                                                                                                                             
 ......  Gas generator assemblies           2.2  ...................      2.2.......                     None..........  335.......  None......        75 kg       150 kg  A                    
          (aircraft), containing a                                                                                                                                                              
          non-flammable non-toxic                                                                                                                                                               
          gas and a propellant                                                                                                                                                                  
          cartridge.                                                                                                                                                                            
D......  Gas identification set...          2.3  NA9035                   2.3.......                  6  None..........  194.......  None......    Forbidden    Forbidden  D                    
 ......  Gas oil or Diesel fuel or            3  UN1202               II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
          Heating oil, light.                                          I                                                                                                                        
 ......  Gas, refrigerated liquid,          2.1    UN3312             ..    2.1.....  .................    None........  316.......  318.......    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          (cryogenic liquid).                                                                                                                                                                   
 ......  Gas, refrigerated liquid,          2.2    UN3158             ..    2.2.....  .................    320.........  316.......  318.......        50 kg       500 kg  D             .......
          n.o.s. (cryogenic                                                                                                                                                                     
          liquid).                                                                                                                                                                              
 ......  Gas, refrigerated liquid,          2.2    UN3311             ..    2.2, 5.1  .................    320.........  316.......  318.......    Forbidden    Forbidden  D             .......
          oxidizing, n.o.s.                                                                                                                                                                     
          (cryogenic liquid).                                                                                                                                                                   
 ......  Gas sample, non-                   2.1  UN3167                   2.1.......                     306...........  302, 304..  None......          1 L          5 L  D                    
          pressurized, flammable,                                                                                                                                                               
          n.o.s., not refrigerated                                                                                                                                                              
          liquid.                                                                                                                                                                               
 ......  Gas sample, non-                   2.3  UN3168                   2.3, 2.1..                     306...........  302.......  None......    Forbidden          1 L  D                    
          pressurized, toxic,                                                                                                                                                                   
          flammable, n.o.s., not                                                                                                                                                                
          refrigerated liquid.                                                                                                                                                                  
 ......  Gas sample, non-                   2.3  UN3169                   2.3.......                     306...........  302, 304..  None......    Forbidden          1 L  D                    
          pressurized, toxic,                                                                                                                                                                   
          n.o.s., not refrigerated                                                                                                                                                              
          liquid.                                                                                                                                                                               
D......  Gasohol gasoline mixed               3  NA1203               II  3.........                     150...........  202.......  242.......          5 L         60 L  E                    
          with ethyl alcohol, with                                                                                                                                                              
          not more than 20 percent                                                                                                                                                              
          alcohol.                                                                                                                                                                              
 ......  Gasoline.................            3  UN1203               II  3.........      B33, B101, T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Gasoline, casinghead, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Gasoline.                                                                                                                                                                             
 ......  Gelatine, blasting, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Explosive, blasting,                                                                                                                                                                  
          type A.                                                                                                                                                                               
 ......  Gelatine dynamites, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Explosive, blasting,                                                                                                                                                                  
          type A.                                                                                                                                                                               
 ......  Germane..................          2.3  UN2192                   2.3, 2.1..                  2  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
 ......  Glycerol-1,3-dinitrate...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Glycerol gluconate           Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trinitrate.                                                                                                                                                                           
 ......  Glycerol lactate             Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trinitrate.                                                                                                                                                                           
 ......  Glycerol alpha-                    6.1  UN2689               II  6.1.......                 T2  153...........  203.......  241.......         60 L        220 L  A                    
          monochlorohydrin.                                            I                                                                                                                        
 ......  Glyceryl trinitrate, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitroglycerin, etc.                                                                                                                                                                   
 ......  Glycidaldehyde...........            3  UN2622               II  3, 6.1....                 T8  150...........  202.......  243.......          1 L         60 L  A                  40
D......  Grenades, empty primed...         1.4S  NA0349               II  None......                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Grenades, hand or rifle,          1.1D  UN0284               II   1.1D.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          with bursting charge.                                                                                                                                                                 
 ......  Grenades, hand or rifle,          1.2D  UN0285               II   1.2D.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          with bursting charge.                                                                                                                                                                 
 ......  Grenades, hand or rifle,          1.1F  UN0292               II   1.1F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          with bursting charge.                                                                                                                                                                 
 ......  Grenades, hand or rifle,          1.2F  UN0293               II   1.2F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          with bursting charge.                                                                                                                                                                 

[[Page 166]]

                                                                                                                                                                                                
 ......  Grenades, illuminating,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Ammunition,                                                                                                                                                                       
          illuminating, etc.                                                                                                                                                                    
 ......  Grenades, practice, hand          1.4S  UN0110               II   1.4S.....                      .............  62........  None......        25 kg       100 kg  A                    
          or rifle.                                                                                                                                                                             
 ......  Grenades, practice, hand          1.3G  UN0318               II   1.3G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          or rifle.                                                                                                                                                                             
 ......  Grenades, practice, hand          1.2G  UN0372               II   1.2G.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          or rifle.                                                                                                                                                                             
 ......  Grenades practice Hand or         1.4G  UN0452               II   1.4G.....                      .............  62........  None......    Forbidden        75 kg  A                 24E
          rifle.                                                                                                                                                                                
 ......  Grenades, smoke, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ammunition, smoke, etc.                                                                                                                                                               
 ......  Guanidine nitrate........          5.1  UN1467               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                  73
                                                                       I                                                                                                                        
 ......  Guanyl                       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitrosaminoguanylidene                                                                                                                                                                
          hydrazine (dry).                                                                                                                                                                      
 ......  Guanyl                            1.1A  UN0113               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          nitrosaminoguanylidene                                                                                                                                                                
          hydrazine, wetted with                                                                                                                                                                
          not less than 30 percent                                                                                                                                                              
          water, by mass.                                                                                                                                                                       
 ......  Guanyl                       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitrosaminoguanyltetraze                                                                                                                                                              
          ne (dry).                                                                                                                                                                             
 ......  Guanyl                            1.1A  UN0114               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          nitrosaminoguanyltetraze                                                                                                                                                              
          ne, wetted or Tetrazene,                                                                                                                                                              
          wetted with not less                                                                                                                                                                  
          than 30 percent water or                                                                                                                                                              
          mixture of alcohol and                                                                                                                                                                
          water, by mass.                                                                                                                                                                       
 ......  Gunpowder, compressed or   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Gunpowder in pellets,                                                                                                                                                                 
          see Black powder (UN                                                                                                                                                                  
          0028).                                                                                                                                                                                
 ......  Gunpowder, granular or as  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          a meal, see Black powder                                                                                                                                                              
          (UN 0027).                                                                                                                                                                            
 ......  Hafnium powder, dry......          4.2  UN2545                I  4.2.......               B100  None..........  211.......  242.......    Forbidden    Forbidden  D                    
         .........................  ...........  ...................  II  4.2.......    A19, A20, B101,  None..........  212.......  241.......        15 kg        50 kg  D                    
                                                                                              B106, N34                                                                                         
         .........................  ...........  ...................  II  4.2.......               B100  None..........  213.......  241.......        25 kg       100 kg  D                    
                                                                       I                                                                                                                        
 ......  Hafnium powder, wetted             4.1  UN1326               II  4.1.......  A6, A19, A20, N34  None..........  212.......  241.......        15 kg        50 kg  E                    
          with not less than 25                                                                                                                                                                 
          percent water (a visible                                                                                                                                                              
          excess of water must be                                                                                                                                                               
          present) (a)                                                                                                                                                                          
          mechanically produced,                                                                                                                                                                
          particle size less than                                                                                                                                                               
          53 microns; (b)                                                                                                                                                                       
          chemically produced,                                                                                                                                                                  
          particle size less than                                                                                                                                                               
          840 microns.                                                                                                                                                                          
 ......  Hand signal device, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Signal devices, hand.                                                                                                                                                                 

[[Page 167]]

                                                                                                                                                                                                
 ......  Hazardous substances,      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquid or solid, n.o.s.,                                                                                                                                                              
          see Environmentally                                                                                                                                                                   
          hazardous substances,                                                                                                                                                                 
          etc.                                                                                                                                                                                  
D......  Hazardous waste, liquid,             9  NA3082               II   9........                     155...........  203.......  241.......     No limit     No limit  A                    
          n.o.s.                                                       I                                                                                                                        
D......  Hazardous waste, solid,              9  NA3077               II   9........                B54  155...........  213.......  240.......     No limit     No limit  A                    
          n.o.s.                                                       I                                                                                                                        
 ......  Helium, compressed.......          2.2  UN1046                   2.2.......                     306...........  302.......  302, 314..        75 kg       150 kg  A                  85
 ......  Helium-oxygen mixture,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Rare gases and                                                                                                                                                                    
          oxygen mixtures.                                                                                                                                                                      
 ......  Helium, refrigerated               2.2  UN1963                   2.2.......                     320...........  316.......  318.......        50 kg       500 kg  B                    
          liquid (cryogenic                                                                                                                                                                     
          liquid).                                                                                                                                                                              
 ......  Heptafluoropropane or              2.2  UN3296                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 227.                                                                                                                                                                
 ......  n-Heptaldehyde...........            3  UN3056               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Heptanes.................            3  UN1206               II  3.........                 T2  150...........  202.......  242.......          5 L         60 L  B                    
 ......  n-Heptene................            3  UN2278               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Hexachloroacetone........          6.1  UN2661               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  B              12, 40
                                                                       I                                                                                                                        
 ......  Hexachlorobenzene........          6.1  UN2729               II  6.1.......                     153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Hexachlorobutadiene......          6.1  UN2279               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Hexachlorocyclopentadiene          6.1  UN2646                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Hexachlorophene..........          6.1  UN2875               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Hexadecyltrichlorosilane.            8  UN1781               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                     T8                                                                                         
 ......  Hexadienes...............            3  UN2458               II  3.........           B101, T7  None..........  202.......  242.......          5 L         60 L  B                    
 ......  Hexaethyl tetraphosphate           2.3  UN1612                   2.3.......                  3  None..........  334.......  None......    Forbidden    Forbidden  D                  40
          and compressed gas                                                                                                                                                                    
          mixtures.                                                                                                                                                                             
 ......  Hexaethyl tetraphosphate           6.1  UN1611               II  6.1.......                N76  None..........  202.......  243.......          5 L         60 L  E                  40
          liquid.                                                                                                                                                                               
 ......  Hexaethyl tetraphosphate,          6.1  UN1611               II  6.1.......                N76  None..........  212.......  242.......        25 kg       100 kg  E                  40
          solid.                                                                                                                                                                                
 ......  Hexafluoroacetone........          2.3  UN2420                   2.3, 8....         2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
 ......  Hexafluoroacetone hydrate          6.1  UN2552               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
 ......  Hexafluoroethane,                  2.2  UN2193                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          compressed or                                                                                                                                                                         
          Refrigerant gas R 116.                                                                                                                                                                
 ......  Hexafluorophosphoric acid            8  UN1782               II  8.........    A6, A7, B2, N3,  None..........  202.......  242.......          1 L         30 L  A                    
                                                                                           N34, T9, T27                                                                                         
D......  Hexafluoropropylene oxide          2.2  NA1956                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
 ......  Hexafluoropropylene                2.2  UN1858                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          compressed or                                                                                                                                                                         
          Refrigerant gas R 1216.                                                                                                                                                               
 ......  Hexaldehyde..............            3  UN1207               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Hexamethylene                      6.1  UN2281               II  6.1.......          B101, T14  None..........  202.......  243.......          5 L         60 L  B              13, 40
          diisocyanate.                                                                                                                                                                         
 ......  Hexamethylene triperoxide    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          diamine (dry).                                                                                                                                                                        
 ......  Hexamethylenediamine,                8  UN2280               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                  12
          solid.                                                       I                                                                                                                        
 ......  Hexamethylenediamine                 8  UN1783               II  8.........                 T8  None..........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Hexamethyleneimine.......            3  UN2493               II  3, 8......           B101, T8  None..........  202.......  243.......          1 L          5 L  B                  40
 ......  Hexamethylenetetramine...          4.1  UN1328               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        

[[Page 168]]

                                                                                                                                                                                                
 ......  Hexamethylol benzene         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hexanitrate.                                                                                                                                                                          
 ......  Hexanes..................            3  UN1208               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  2,2',4,4',6,6'- Hexanitro-   Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          3,3'-                                                                                                                                                                                 
          dihydroxyazobenzene(dry).                                                                                                                                                             
 ......  Hexanitroazoxy benzene...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  N,N'-(hexanitrodiphenyl)     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ethylene dinitramine                                                                                                                                                                  
          (dry).                                                                                                                                                                                
 ......  Hexanitrodiphenyl urea...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  2,2',3',4,4',6-              Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hexanitrodiphenylamine.                                                                                                                                                               
 ......  Hexanitrodiphenylamine or         1.1D  UN0079               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Dipicrylamine or Hexyl.                                                                                                                                                               
 ......  2,3',4,4',6,6'-              Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hexanitrodiphenylether.                                                                                                                                                               
 ......  Hexanitroethane..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Hexanitrooxanilide.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Hexanitrostilbene........         1.1D  UN0392               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Hexanoic acid, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Corrosive liquids, n.o.s.                                                                                                                                                             
 ......  Hexanols.................            3  UN2282               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  1-Hexene.................            3  UN2370               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Hexogen and                ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          cyclotetramethylenetetra                                                                                                                                                              
          nitramine mixtures,                                                                                                                                                                   
          wetted or desensitized                                                                                                                                                                
          see RDX and HMX                                                                                                                                                                       
          mixtures, wetted or                                                                                                                                                                   
          desensitized etc.                                                                                                                                                                     
 ......  Hexogen and HMX mixtures,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          wetted or desensitized                                                                                                                                                                
          see RDX and HMX                                                                                                                                                                       
          mixtures, wetted or                                                                                                                                                                   
          desensitized etc.                                                                                                                                                                     
 ......  Hexogen and octogen        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixtures, wetted or                                                                                                                                                                   
          desensitized see RDX and                                                                                                                                                              
          HMX mixtures, wetted or                                                                                                                                                               
          desensitized etc.                                                                                                                                                                     
 ......  Hexogen, see               ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cyclotrimethylenetrinitr                                                                                                                                                              
          amine, etc.                                                                                                                                                                           
 ......  Hexolite, or Hexotol dry          1.1D  UN0118               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          or wetted with less than                                                                                                                                                              
          15 percent water, by                                                                                                                                                                  
          mass.                                                                                                                                                                                 
 ......  Hexotonal................         1.1D  UN0393               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Hexyl, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hexanitrodiphenylamine.                                                                                                                                                               

[[Page 169]]

                                                                                                                                                                                                
 ......  Hexyltrichlorosilane.....            8  UN1784               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                T8, T26                                                                                         
 ......  High explosives, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          individual explosives'                                                                                                                                                                
          entries.                                                                                                                                                                              
 ......  HMX, see                   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cyclotetramethylenetetra                                                                                                                                                              
          nitramine, etc.                                                                                                                                                                       
 ......  Hydrazine, anhydrous or              8  UN2029                I  8, 3, 6.1.   A3, A6, A7, A10,  None..........  201.......  243.......    Forbidden        2.5 L  D             21, 40,
          Hydrazine aqueous                                                               B16, B53, T25                                                                                  42, 100
          solutions with more than                                                                                                                                                              
          64 percent hydrazine, by                                                                                                                                                              
          mass.                                                                                                                                                                                 
 ......  Hydrazine, aqueous                 6.1  UN3293               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
          solution with not more                                       I                                                                                                                        
          than 37 percent                                                                                                                                                                       
          hydrazine, by mass.                                                                                                                                                                   
 ......  Hydrazine azide..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Hydrazine chlorate.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Hydrazine dicarbonic acid    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          diazide.                                                                                                                                                                              
 ......  Hydrazine hydrate or                 8  UN2030               II  8, 6.1....    B16, B53, B110,  None..........  202.......  243.......    Forbidden         30 L  D             40, 42,
          Hydrazine aqueous                                                                         T15                                                                                       82
          solutions, with not less                                                                                                                                                              
          than 37 percent but not                                                                                                                                                               
          more than 64 percent                                                                                                                                                                  
          hydrazine, by mass.                                                                                                                                                                   
 ......  Hydrazine perchlorate....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Hydrazine selenate.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Hydriodic acid,            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          anhydrous, see Hydrogen                                                                                                                                                               
          iodide, anhydrous.                                                                                                                                                                    
 ......  Hydriodic acid...........            8  UN1787               II  8.........   A3, A6, B2, N41,  154...........  202.......  242.......          1 L         30 L  C                    
                                                                                                T9, T27                                                                                         
         .........................  ...........  ...................  II  8.........            T8, T26  154...........  203.......  241.......          5 L         60 L  C                   8
                                                                       I                                                                                                                        
 ......  Hydrobromic acid,          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          anhydrous, see Hydrogen                                                                                                                                                               
          bromide, anhydrous.                                                                                                                                                                   
 ......  Hydrobromic acid, with               8  UN1788               II  8.........  B2, B15, N41, T9,  154...........  202.......  242.......    Forbidden    Forbidden  C                    
          more than 49 percent                                                                      T27                                                                                         
          hydrobromic acid.                                                                                                                                                                     
         .........................  ...........  ...................  II  8.........            T8, T26  154...........  203.......  241.......    Forbidden    Forbidden  C                   8
                                                                       I                                                                                                                        
 ......  Hydrobromic acid, with               8  UN1788               II  8.........   A3, A6, B2, B15,  154...........  202.......  242.......          1 L         30 L  C                    
          not more than 49 percent                                                         N41, T9, T27                                                                                         
          hydrobromic acid.                                                                                                                                                                     
         .........................  ...........  ...................  II  8.........            T8, T26  154...........  203.......  241.......          5 L         30 L  C                   8
                                                                       I                                                                                                                        
 ......  Hydrocarbon gases,                 2.1  UN1964                   2.1.......                     306...........  302.......  314, 315..    Forbidden       150 kg  E                  40
          compressed, n.o.s..                                                                                                                                                                   
 ......  Hydrocarbon gases,                 2.1  UN1965                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          liquefied, n.o.s..                                                                                                                                                                    
 ......  Hydrocarbons, liquid,                3  UN3295                I  3.........            T8, T31  150...........  201.......  243.......          1 L         30 L  E                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30   150..........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Hydrochloric acid,         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          anhydrous, see Hydrogen                                                                                                                                                               
          chloride, anhydrous.                                                                                                                                                                  
 ......  Hydrochloric acid........            8  UN1789               II  8.........   A3, A6, B3, B15,  154...........  202.......  242.......          1 L         30 L  C                    
                                                                                           N41, T9, T27                                                                                         
         .........................  ...........  ...................  II  8.........            T8, T26  154...........  203.......  241.......          5 L         60 L  C                   8
                                                                       I                                                                                                                        
 ......  Hydrocyanic acid,          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          anhydrous, see Hydrogen                                                                                                                                                               
          cyanide etc.                                                                                                                                                                          

[[Page 170]]

                                                                                                                                                                                                
 ......  Hydrocyanic acid, aqueous          6.1  UN1613                I  6.1.......  2, B61, B65, B77,  None..........  195.......  244.......    Forbidden    Forbidden  D                  40
          solutions or Hydrogen                                                                     B82                                                                                         
          cyanide, aqueous                                                                                                                                                                      
          solutions with not more                                                                                                                                                               
          than 20 percent hydrogen                                                                                                                                                              
          cyanide.                                                                                                                                                                              
D......  Hydrocyanic acid, aqueous          6.1  NA1613               II  6.1.......           T18, T26  None..........  195.......  243.......    Forbidden          5 L  D                  40
          solutions with less than                                                                                                                                                              
          5 percent hydrogen                                                                                                                                                                    
          cyanide.                                                                                                                                                                              
 ......  Hydrocyanic acid,          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquefied, see Hydrogen                                                                                                                                                               
          cyanide, etc.                                                                                                                                                                         
 ......  Hydrocyanic acid             Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (prussic), unstabilized.                                                                                                                                                              
 ......  Hydrofluoric acid and                8  UN1786                I  8, 6.1....  A6, A7, B15, B23,  None..........  201.......  243.......    Forbidden        2.5 L  D              40, 95
          Sulfuric acid mixtures.                                                     N5, N34, T18, T27                                                                                         
 ......  Hydrofluoric acid,         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          anhydrous, see Hydrogen                                                                                                                                                               
          fluoride, anhydrous.                                                                                                                                                                  
 ......  Hydrofluoric acid, with              8  UN1790                I  8, 6.1....   A6, A7, B4, B15,  None..........  201.......  243.......        0.5 L        2.5 L  D              12, 40
          more than 60 percent                                                            B23, N5, N34,                                                                                         
          strength.                                                                            T18, T27                                                                                         
 ......  Hydrofluoric acid, with              8  UN1790               II  8, 6.1....       A6, A7, B15,  None..........  202.......  243.......          1 L         30 L  D              12, 40
          not more than 60 percent                                                       B110, N5, N34,                                                                                         
          strength.                                                                            T18, T27                                                                                         
 ......  Hydrofluoroboric acid,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Fluoroboric acid.                                                                                                                                                                 
 ......  Hydrofluorosilicic acid,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Fluorosilicic acid.                                                                                                                                                               
 ......  Hydrogen and Methane               2.1  UN2034                   2.1.......                     306...........  302.......  302, 314,     Forbidden       150 kg  E                  40
          mixtures, compressed.                                                                                                       315.                                                      
 ......  Hydrogen bromide,                  2.3  UN1048                   2.3, 8....             3, B14  None..........  304.......  314, 315..    Forbidden        25 kg  D                  40
          anhydrous.                                                                                                                                                                            
 ......  Hydrogen chloride,                 2.3  UN1050                   2.3, 8....                  3  None..........  304.......  None......    Forbidden    Forbidden  D                  40
          anhydrous.                                                                                                                                                                            
 ......  Hydrogen chloride,                 2.3  UN2186                   2.3, 8....              3, B6  None..........  None......  314, 315..    Forbidden    Forbidden  B                  40
          refrigerated liquid.                                                                                                                                                                  
 ......  Hydrogen, compressed.....          2.1  UN1049                   2.1.......                     306...........  302.......  302, 314..    Forbidden       150 kg  E              40, 57
         Hydrogen cyanide,                  6.1  UN3294                I  6.1, 3....      2,25,B9, B14,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
          solution in alcohol with                                                       B32, B74, T38,                                                                                         
          not more than 45 percent                                                              T43,T45                                                                                         
          hydrogen cyanide.                                                                                                                                                                     

[[Page 171]]

                                                                                                                                                                                                
 ......  Hydrogen cyanide,                  6.1  UN1051                I  6.1, 3....  1, B35, B61, B65,  None..........  195.......  244.......    Forbidden    Forbidden  D                  40
          stabilized with less                                                                 B77, B82                                                                                         
          than 3 percent water.                                                                                                                                                                 
 ......  Hydrogen cyanide,                  6.1  UN1614                I  6.1.......                  5  None..........  195.......  None......    Forbidden    Forbidden  D              25, 40
          stabilized, with less                                                                                                                                                                 
          than 3 percent water and                                                                                                                                                              
          absorbed in a porous                                                                                                                                                                  
          inert material.                                                                                                                                                                       
 ......  Hydrogen fluoride,                   8  UN1052                I  8, 6.1....   3, B7, B46, B71,  None..........  163.......  243.......    Forbidden    Forbidden  D                  40
          anhydrous.                                                                      B77, T24, T27                                                                                         
 ......  Hydrogen iodide,                   2.3  UN2197                   2.3.......             3, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          anhydrous.                                                                                                                                                                            
 ......  Hydrogen iodide solution,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Hydriodic acid,                                                                                                                                                                   
          solution.                                                                                                                                                                             
 ......  Hydrogen peroxide and              5.1  UN3149               II  5.1, 8....   A2, A3, A6, B53,  None..........  202.......  243.......          1 L          5 L  D             25, 66,
          peroxyacetic acid                                                             B104, B110, T14                                                                                  75, 106
          mixtures, stabilized                                                                                                                                                                  
          with acids, water and                                                                                                                                                                 
          not more than 5 percent                                                                                                                                                               
          peroxyacetic acid.                                                                                                                                                                    
 ......  Hydrogen peroxide,                 5.1  UN2014               II  5.1, 8....   12, A3, A6, B53,  None..........  202.......  243.......    Forbidden    Forbidden  D             25, 66,
          aqueous solutions with                                                         B80, B81, B85,                                                                                  75, 106
          more than 40 percent but                                                     B104, B110, T14,                                                                                         
          not more than 60 percent                                                                  T37                                                                                         
          hydrogen peroxide                                                                                                                                                                     
          (stabilized as                                                                                                                                                                        
          necessary).                                                                                                                                                                           
 ......  Hydrogen peroxide,                 5.1  UN2984               II  5.1.......  17, A1, B104, T8,  152...........  203.......  241.......        2.5 L         30 L  B             25, 75,
          aqueous solutions with                                       I                            T37                                                                                      106
          not less than 8 percent                                                                                                                                                               
          but less than 20 percent                                                                                                                                                              
          hydrogen peroxide                                                                                                                                                                     
          (stabilized as                                                                                                                                                                        
          necessary).                                                                                                                                                                           
 ......  Hydrogen peroxide,                 5.1  UN2014               II  5.1, 8....   A2, A3, A6, B53,  None..........  202.......  243.......          1 L          5 L  D             25, 66,
          aqueous solutions with                                                       B104, B110, T14,                                                                                  75, 106
          not less than 20 percent                                                                  T37                                                                                         
          but not more than 40                                                                                                                                                                  
          percent hydrogen                                                                                                                                                                      
          peroxide (stabilized as                                                                                                                                                               
          necessary).                                                                                                                                                                           
 ......  Hydrogen peroxide,                 5.1  UN2015                I  5.1, 8....   12, A3, A6, B53,  None..........  201.......  243.......    Forbidden    Forbidden  D             25, 66,
          stabilized or Hydrogen                                                         B80, B81, B85,                                                                                  75, 106
          peroxide aqueous                                                                     T15, T37                                                                                         
          solutions, stabilized                                                                                                                                                                 
          with more than 60                                                                                                                                                                     
          percent hydrogen                                                                                                                                                                      
          peroxide.                                                                                                                                                                             
 ......  Hydrogen, refrigerated             2.1  UN1966                   2.1.......                     None..........  316.......  318, 319..    Forbidden    Forbidden  D                  40
          liquid (cryogenic                                                                                                                                                                     
          liquid).                                                                                                                                                                              
 ......  Hydrogen selenide,                 2.3  UN2202                   2.3, 2.1..                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          anhydrous.                                                                                                                                                                            
 ......  Hydrogen sulfate, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sulfuric acid.                                                                                                                                                                        
 ......  Hydrogen sulfide.........          2.3  UN1053                   2.3, 2.1..         2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
 ......  Hydrogendifluorides,                 8  UN1740               II  8.........            N3, N34  None..........  212.......  240.......        15 kg        50 kg  A             25, 26,
          n.o.s. solid.                                                                                                                                                                       40
         .........................  ...........  ...................  II  8.........            N3, N34  154...........  213.......  240.......        25 kg       100 kg  A             25, 26,
                                                                       I                                                                                                                      40
 ......  Hydrogendifluorides,                 8  UN1740               II  8.........            N3, N34  None..........  202.......  242.......          1 L         30 L  A             25, 26,
          n.o.s. solutions.                                                                                                                                                                   40
         .........................  ...........  ...................  II  8.........            N3, N34  154...........  203.......  241.......          5 L         60 L  A             25, 26,
                                                                       I                                                                                                                      40
 ......  Hydroquinone.............          6.1  UN2662               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Hydrosilicofluoric acid,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Fluorosilicic acid.                                                                                                                                                               

[[Page 172]]

                                                                                                                                                                                                
 ......  Hydroxyl amine iodide....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Hydroxylamine sulfate....            8  UN2865               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Hypochlorite solutions...            8  UN1791               II  8.........  A7, B2, B15, N34,  154...........  202.......  242.......          1 L         30 L  B                  26
                                                                                                     T7                                                                                         
         .........................  ...........  ...................  II  8.........      B104, N34, T7  154...........  203.......  241.......          5 L         60 L  B                  26
                                                                       I                                                                                                                        
 ......  Hypochlorites, inorganic,          5.1  UN3212               II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  D             48, 56,
          n.o.s.                                                                                                                                                                         58, 69,
                                                                                                                                                                                            106,
                                                                                                                                                                                            116,
                                                                                                                                                                                             118
 ......  Hyponitrous acid.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Igniter fuse, metal clad,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Fuse, igniter,                                                                                                                                                                    
          tubular, metal clad.                                                                                                                                                                  
 ......  Igniters.................         1.1G  UN0121               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Igniters.................         1.2G  UN0314               II   1.2G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Igniters.................         1.3G  UN0315               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  A                    
 ......  Igniters.................         1.4G  UN0325               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Igniters.................         1.4S  UN0454               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  3,3'-Iminodipropylamine..            8  UN2269               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Infectious substances,             6.2  UN2900                   6.2.......                     134...........  196.......  None......  50 mL or 50  4 L or 4 kg  B                    
          affecting animals only.                                                                                                                          g                                    
 ......  Infectious substances,             6.2  UN2814                   6.2.......                     134...........  196.......  None......  50 mL or 50  4 L or 4 kg  B                    
          affecting humans.                                                                                                                                g                                    
 ......  Inflammable, see           ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Flammable.                                                                                                                                                                            
 ......  Initiating explosives        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Inositol hexanitrate         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
D......  Insecticide gases                  2.1  NA1954                   2.1.......                     306...........  304.......  314, 315..        75 kg       150 kg  D                    
          flammable n.o.s.                                                                                                                                                                      
 ......  Insecticide gases, n.o.s.          2.2  UN1968                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
 ......  Insecticide gases, toxic,          2.3  UN1967                   2.3.......                  3  None..........  193, 334..  245.......    Forbidden    Forbidden  D                  40
          n.o.s.                                                                                                                                                                                
 ......  Inulin trinitrate (dry)..    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Iodine azide (dry).......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Iodine monochloride......            8  UN1792               II  8.........   B6, N41, T8, T26  None..........  212.......  240.......    Forbidden        50 kg  D             40, 66,
                                                                                                                                                                                         74, 89,
                                                                                                                                                                                              90

[[Page 173]]

                                                                                                                                                                                                
 ......  Iodine pentafluoride.....          5.1  UN2495                I  5.1, 6.1,                      None..........  205.......  243.......    Forbidden        2.5 L  D             25, 40,
                                                                           8.                                                                                                             66, 90
 ......  2-Iodobutane.............            3  UN2390               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Iodomethylpropanes.......            3  UN2391               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Iodopropanes.............            3  UN2392               II  3.........             B1, T8  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Iodoxy compounds (dry)...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Iridium nitratopentamine     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          iridium nitrate.                                                                                                                                                                      
 ......  Iron chloride, see Ferric  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chloride.                                                                                                                                                                             
 ......  Iron oxide, spent, or              4.2  UN1376               II  4.2.......                B18  None..........  213.......  240.......    Forbidden    Forbidden  E                    
          Iron sponge, spent                                           I                                                                                                                        
          obtained from coal gas                                                                                                                                                                
          purification.                                                                                                                                                                         
 ......  Iron pentacarbonyl.......          6.1  UN1994                I  6.1, 3....   1, B9, B14, B30,  None..........  192.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B72, B77, T38,                                                                                         
                                                                                               T43, T44                                                                                         
 ......  Iron sesquichloride, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ferric chloride.                                                                                                                                                                      
 ......  Irritating material, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tear gas substances, etc.                                                                                                                                                             
 ......  Isobutane see also                 2.1  UN1969                   2.1.......                 19  306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          Petroleum gases,                                                                                                                                                                      
          liquefied.                                                                                                                                                                            
 ......  Isobutanol or Isobutyl               3  UN1212               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          alcohol.                                                     I                                                                                                                        
 ......  Isobutyl acetate.........            3  UN1213               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Isobutyl acrylate,                   3  UN2527               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          inhibited.                                                   I                                                                                                                        
 ......  Isobutyl alcohol, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Isobutanol.                                                                                                                                                                           
 ......  Isobutyl aldehyde, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Isobutyraldehyde.                                                                                                                                                                     
D......  Isobutyl chloroformate...          6.1  NA2742                I  6.1, 3, 8.   2, B9, B14, B32,  None..........  227.......  244.......          1 L         30 L  A             12, 13,
                                                                                         B74, T38, T43,                                                                                  22, 25,
                                                                                                    T45                                                                                  40, 48,
                                                                                                                                                                                             100
 ......  Isobutyl formate.........            3  UN2393               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Isobutyl isobutyrate.....            3  UN2528               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
+......  Isobutyl isocyanate......            3  UN2486               II  3, 6.1....   1, B9, B14, B30,  None..........  226.......  244.......          1 L    Forbidden  D                  40
                                                                                         B72, T38, T43,                                                                                         
                                                                                                    T44                                                                                         
 ......  Isobutyl methacrylate,               3  UN2283               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          inhibited.                                                   I                                                                                                                        
 ......  Isobutyl propionate......            3  UN2394               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  B                    
                                                                       I                                                                                                                        
 ......  Isobutylamine............            3  UN1214               II  3, 8......           B101, T8  None..........  202.......  243.......          1 L          5 L  B                  40
 ......  Isobutylene see also               2.1  UN1055                   2.1.......                 19  306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          Petroleum gases,                                                                                                                                                                      
          liquefied.                                                                                                                                                                            
 ......  Isobutyraldehyde or                  3  UN2045               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  E                  40
          Isobutyl aldehyde.                                                                                                                                                                    
 ......  Isobutyric acid..........            3  UN2529               II  3, 8......             B1, T1  150...........  203.......  242.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Isobutyric anhydride.....            3  UN2530               II  3, 8......             B1, T1  150...........  203.......  242.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Isobutyronitrile.........            3  UN2284               II  3, 6.1....                T17  None..........  202.......  243.......          1 L         60 L  E                  40
 ......  Isobutyryl chloride......            3  UN2395               II  3, 8......      B100, T9, T26  None..........  202.......  243.......          1 L          5 L  C                  40

[[Page 174]]

                                                                                                                                                                                                
 ......  Isocyanates, flammable,              3  UN2478               II  3, 6.1....     5, A3, A7, T15  None..........  202.......  243.......          1 L         60 L  D                  40
          toxic, n.o.s or                                                                                                                                                                       
          Isocyanate solutions,                                                                                                                                                                 
          flammable, toxic, n.o.s.                                                                                                                                                              
          flashpoint less than 23                                                                                                                                                               
          degrees C.                                                                                                                                                                            
 ......  Isocyanates, toxic,                6.1  UN3080               II  6.1, 3....                T15  None..........  202.......  243.......          5 L         60 L  D             25, 40,
          flammable, n.o.s. or                                                                                                                                                                48
          Isocyanate solutions,                                                                                                                                                                 
          toxic, flammable,                                                                                                                                                                     
          n.o.s., flash point not                                                                                                                                                               
          less than 23 degrees C                                                                                                                                                                
          but not more than 61                                                                                                                                                                  
          degrees C and boiling                                                                                                                                                                 
          point less than 300                                                                                                                                                                   
          degrees C.                                                                                                                                                                            
 ......  Isocyanates, toxic,                6.1  UN2206               II  6.1.......                T15  None..........  202.......  243.......          5 L         60 L  D             25, 40,
          n.o.s. or Isocyanate,                                                                                                                                                               48
          solutions, toxic,                                                                                                                                                                     
          n.o.s., flash point more                                                                                                                                                              
          than 61 degrees C and                                                                                                                                                                 
          boiling point less than                                                                                                                                                               
          300 degrees C.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  D             25, 40,
                                                                       I                                                                                                                      48
 ......  Isocyanatobenzotrifluorid          6.1  UN2285               II  6.1, 3....       5, B101, T14  None..........  202.......  243.......          5 L         60 L  B             25, 40,
          es.                                                                                                                                                                                 48
 ......  Isoheptenes..............            3  UN2287               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Isohexenes...............            3  UN2288               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Isooctane, see Octanes...  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Isooctenes...............            3  UN1216               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Isopentane, see Pentane..  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Isopentanoic acid, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Corrosive liquids, n.o.s.                                                                                                                                                             
 ......  Isopentenes..............            3  UN2371                I  3.........                T20  150...........  201.......  243.......          1 L         30 L  E                    
 ......  Isophorone diisocyanate..          6.1  UN2290               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  B                  40
                                                                       I                                                                                                                        
 ......  Isophoronediamine........            8  UN2289               II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Isoprene, inhibited......            3  UN1218                I  3.........                T20  150...........  201.......  243.......          1 L         30 L  E                    
 ......  Isopropanol or Isopropyl             3  UN1219               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
          alcohol.                                                                                                                                                                              
 ......  Isopropenyl acetate......            3  UN2403               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Isopropenylbenzene.......            3  UN2303               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Isopropyl acetate........            3  UN1220               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Isopropyl acid phosphate.            8  UN1793               II  8.........                 T7  154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Isopropyl alcohol, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Isopropanol.                                                                                                                                                                          
 ......  Isopropyl butyrate.......            3  UN2405               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Isopropyl chloroacetate..            3  UN2947               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 175]]

                                                                                                                                                                                                
 ......  Isopropyl chloroformate..          6.1  UN2407                I  6.1, 3, 8.   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  B                  40
                                                                                         B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Isopropyl 2-                         3  UN2934               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          chloropropionate.                                            I                                                                                                                        
 ......  Isopropyl isobutyrate....            3  UN2406               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
+......  Isopropyl isocyanate.....            3  UN2483                I  3, 6.1....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B72, T38, T43,                                                                                         
                                                                                                    T44                                                                                         
 ......  Isopropyl mercaptan, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Propanethiols.                                                                                                                                                                        
 ......  Isopropyl nitrate........            3  UN1222               II  3.........                T25  150...........  202.......  None......          5 L         60 L  D                    
 ......  Isopropyl phosphoric       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          acid, see Isopropyl acid                                                                                                                                                              
          phosphate.                                                                                                                                                                            
 ......  Isopropyl propionate.....            3  UN2409               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Isopropylamine...........            3  UN1221                I  3, 8......                T20  None..........  201.......  243.......        0.5 L        2.5 L  E                    
 ......  Isopropylbenzene.........            3  UN1918               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Isopropylcumyl               Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hydroperoxide, with more                                                                                                                                                              
          than 72 percent in                                                                                                                                                                    
          solution.                                                                                                                                                                             
 ......  Isosorbide dinitrate               4.1  UN2907               II  4.1.......                     None..........  212.......  None......        15 kg        50 kg  E                    
          mixture with not less                                                                                                                                                                 
          than 60 percent lactose,                                                                                                                                                              
          mannose, starch or                                                                                                                                                                    
          calcium hydrogen                                                                                                                                                                      
          phosphate.                                                                                                                                                                            
 ......  Isosorbide-5-mononitrate.          4.1  UN3251               II  4.1.......                 66  151...........  213.......  240.......    Forbidden    Forbidden  D                  12
                                                                       I                                                                                                                        
 ......  Isothiocyanic acid.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Jet fuel, see Fuel         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          aviation, turbine engine.                                                                                                                                                             
D        Jet perforating guns,             1.1D  NA0124               II   1.1D.....             55, 56  None..........  62........  None......    Forbidden    Forbidden  A                 24E
          charged oil well, with                                                                                                                                                                
          detonator.                                                                                                                                                                            
D        Jet perforating guns,             1.4D  NA0494               II   1.4D.....             55, 56  None            62          None          Forbidden    Forbidden  B                    
          charged oil well, with                                                                                                                                                                
          detonator.                                                                                                                                                                            
 ......  Jet perforating guns,             1.1D  UN0124               II   1.1D.....                 55  None..........  62........  None......    Forbidden    Forbidden  B                    
          charged oil well,                                                                                                                                                                     
          without detonator.                                                                                                                                                                    
 ......  Jet perforating guns,             1.4D  UN0494               II   1.4D.....            55, 114  None..........  62........  None......    Forbidden       300 kg  A                 24E
          charged, oil well,                                                                                                                                                                    
          without detonator.                                                                                                                                                                    
 ......  Jet perforators, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Charges, shaped,                                                                                                                                                                      
          commercial etc.                                                                                                                                                                       
 ......  Jet tappers, without       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          detonator, see Charges,                                                                                                                                                               
          shaped commercial, etc.                                                                                                                                                               
 ......  Jet thrust igniters, for   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          rocket motors or Jato,                                                                                                                                                                
          see Igniters.                                                                                                                                                                         
 ......  Jet thrust unit (Jato),    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Rocket motors.                                                                                                                                                                    
 ......  Kerosene.................            3  UN1223               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Ketones, liquid, n.o.s...            3  UN1224                I  3.........            T8, T31  None..........  201.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Krypton, compressed......          2.2  UN1056                   2.2.......                     306...........  302.......  None......        75 kg       150 kg  A                    
 ......  Krypton, refrigerated              2.2  UN1970                   2.2.......                     320...........  None......  None......        50 kg       500 kg  B                    
          liquid (cryogenic                                                                                                                                                                     
          liquid).                                                                                                                                                                              

[[Page 176]]

                                                                                                                                                                                                
 ......  Lacquer base or lacquer    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chips, nitrocellulose,                                                                                                                                                                
          dry, see Nitrocellulose,                                                                                                                                                              
          etc. (UN 2557).                                                                                                                                                                       
 ......  Lacquer base or lacquer    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chips, plastic, wet with                                                                                                                                                              
          alcohol or solvent, see                                                                                                                                                               
          Nitrocellulose (UN 2059,                                                                                                                                                              
          UN 2060, UN 2555,                                                                                                                                                                     
          UN2556) or Paint etc.                                                                                                                                                                 
          (UN1263).                                                                                                                                                                             
 ......  Lead acetate.............          6.1  UN1616               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Lead arsenates...........          6.1  UN1617               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Lead arsenites...........          6.1  UN1618               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Lead azide (dry).........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Lead azide, wetted with           1.1A  UN0129               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          not less than 20 percent                                                                                                                                                              
          water or mixture of                                                                                                                                                                   
          alcohol and water, by                                                                                                                                                                 
          mass.                                                                                                                                                                                 
 ......  Lead compounds, soluble,           6.1  UN2291               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
          n.o.s.                                                       I                                                                                                                        
 ......  Lead cyanide.............          6.1  UN1620               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  26
 ......  Lead dioxide.............          5.1  UN1872               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                  34
                                                                       I                                                                                                                        
 ......  Lead dross, see Lead       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          sulfate, with more than                                                                                                                                                               
          3 percent free acid.                                                                                                                                                                  
D......  Lead mononitroresorcinate         1.1A  NA0473               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
 ......  Lead nitrate.............          5.1  UN1469               II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  A                    
 ......  Lead nitroresorcinate        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Lead perchlorate, solid..          5.1  UN1470               II  5.1, 6.1..                 T8  None..........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Lead perchlorate,                  5.1  UN1470               II  5.1, 6.1..                 T8  None..........  202.......  243.......          1 L          5 L  A             56, 58,
          solution.                                                                                                                                                                          106
 ......  Lead peroxide, see Lead    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dioxide.                                                                                                                                                                              
 ......  Lead phosphite, dibasic..          4.1  UN2989               II  4.1.......                     None..........  212.......  240.......         5 kg        25 kg  B                  34
         .........................  ...........  ...................  II  4.1.......                     151...........  213.......  240.......        15 kg        50 kg  B                  34
                                                                       I                                                                                                                        
 ......  Lead picrate (dry).......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Lead styphnate (dry).....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Lead styphnate, wetted or         1.1A  UN0130               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          Lead                                                                                                                                                                                  
          trinitroresorcinate,                                                                                                                                                                  
          wetted with not less                                                                                                                                                                  
          than 20 percent water or                                                                                                                                                              
          mixture of alcohol and                                                                                                                                                                
          water, by mass.                                                                                                                                                                       
 ......  Lead sulfate with more               8  UN1794               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
          than 3 percent free acid.                                                                                                                                                             

[[Page 177]]

                                                                                                                                                                                                
 ......  Lead trinitroresorcinate,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Lead styphnate, etc.                                                                                                                                                              
 ......  Life-saving appliances,              9  UN3072                   None......                     None..........  219.......  None......     No limit     No limit  A                    
          not self inflating                                                                                                                                                                    
          containing dangerous                                                                                                                                                                  
          goods as equipment.                                                                                                                                                                   
 ......  Life-saving appliances,              9  UN2990                   None......                     None..........  219.......  None......     No limit     No limit  A                    
          self inflating.                                                                                                                                                                       
 ......  Lighter replacement        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          cartridges containing                                                                                                                                                                 
          liquefied petroleum                                                                                                                                                                   
          gases (and similar                                                                                                                                                                    
          devices, each not                                                                                                                                                                     
          exceeding 65 grams), see                                                                                                                                                              
          Lighters or lighter                                                                                                                                                                   
          refillsetc. containing                                                                                                                                                                
          flammable gas.                                                                                                                                                                        
D......  Lighters for cigars,                 3  NA1226               II  3.........                N10  None..........  21........  None......    Forbidden    Forbidden  B                    
          cigarettes, etc., with                                                                                                                                                                
          lighter fluids.                                                                                                                                                                       
 ......  Lighters, fuse...........         1.4S  UN0131               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Lighters or Lighter                2.1  UN1057                   2.1.......                N10  None..........  21, 308...  None......         1 kg        15 kg  B                  40
          refills cigarettes,                                                                                                                                                                   
          containing flammable gas.                                                                                                                                                             
 ......  Lime, unslaked, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Calcium oxide.                                                                                                                                                                        
 ......  Liquefied gas, flammable,          2.1  UN3161                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  D                  40
          n.o.s.                                                                                                                                                                                
 ......  Liquefied gas, n.o.s.....          2.2  UN3163                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
 ......  Liquefied gas, oxidizing,          2.2  UN3157                   2.2, 5.1..                     306...........  304.......  314, 315..        75 kg       150 kg  D                    
          n.o.s.                                                                                                                                                                                
I......  Liquefied gas, toxic,              2.3  UN3308               ..  2.3, 8....                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone A.                                                                                                                                                             
I......  Liquefied gas, toxic,              2.3  UN3308               ..  2.3, 8....                  2  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone B.                                                                                                                                                             
I......  Liquefied gas, toxic,              2.3  UN3308               ..  2.3, 8....                  3  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone C.                                                                                                                                                             
I......  Liquefied gas, toxic,              2.3  UN3308               ..  2.3, 8....                  4  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          corrosive, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone D.                                                                                                                                                             
I......  Liquefied gas, toxic,              2.3  UN3309               ..  2.3, 2.1,                   1  None..........  192.......  245.......    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone A.                                                                                                                                                                               
I......  Liquefied gas toxic,               2.3  UN3309               ..  2.3, 2.1,                   2  None..........  304.......  314, 315..    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone B.                                                                                                                                                                               
I......  Liquefied gas, toxic,              2.3  UN3309               ..  2.3, 2.1,                   3  None..........  304.......  314, 315..    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone C.                                                                                                                                                                               
I......  Liquefied gas, toxic,              2.3  UN3309               ..  2.3, 2.1,                   4  None..........  304.......  314, 315..    Forbidden    Forbidden  D              17, 40
          flammable, corrosive,                                            8.                                                                                                                   
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone D.                                                                                                                                                                               
 ......  Liquefied gas, toxic,              2.3  UN3160                   2.3, 2.1..                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone A.                                                                                                                                                             
 ......  Liquefied gas, toxic,              2.3  UN3160                   2.3, 2.1..         2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone B.                                                                                                                                                             
 ......  Liquefied gas, toxic,              2.3  UN3160                   2.3, 2.1..             3, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone C.                                                                                                                                                             

[[Page 178]]

                                                                                                                                                                                                
 ......  Liquefied gas, toxic,              2.3  UN3160                   2.3, 2.1..                  4  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          flammable, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone D.                                                                                                                                                             
 ......  Liquefied gas, toxic,              2.3  UN3162                   2.3.......                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone A.                                                                                                                                                                               
 ......  Liquefied gas, toxic,              2.3  UN3162                   2.3.......         2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone B.                                                                                                                                                                               
 ......  Liquefied gas, toxic,              2.3  UN3162                   2.3.......             3, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone C.                                                                                                                                                                               
 ......  Liquefied gas, toxic,              2.3  UN3162                   2.3.......                  4  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone D.                                                                                                                                                                               
I......  Liquefied gas, toxic,              2.3  UN3310               ..  2.3, 5.1,                   1  None..........  192.......  245.......    Forbidden    Forbidden  D             40, 89,
          oxidizing, corrosive,                                            8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone A.                                                                                                                                                                               
I......  Liquefied gas, toxic,              2.3  UN3310               ..  2.3, 2.1,                   2  None..........  304.......  314, 315..    Forbidden    Forbidden  D             40, 89,
          oxidizing, corrosive,                                            8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone B.                                                                                                                                                                               
I......  Liquefied gas, toxic,              2.3  UN3310               ..  2.3, 2.1,                   3  None..........  304.......  314, 315..    Forbidden    Forbidden  D             40, 89,
          oxidizing, corrosive,                                            8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone C.                                                                                                                                                                               
I......  Liquefied gas, toxic,              2.3  UN3310               ..  2.3, 2.1,                   4  None..........  304.......  314, 315..    Forbidden    Forbidden  D             40, 89,
          oxidizing, corrosive,                                            8.                                                                                                                 90
          n.o.s. Inhalation Hazard                                                                                                                                                              
          Zone D.                                                                                                                                                                               
 ......  Liquefied gas, toxic,              2.3  UN3307               ..  2.3, 5.1..                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone A.                                                                                                                                                             
 ......  Liquefied gas, toxic,              2.3  UN3307               ..  2.3, 5.1..                  2  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s                                                                                                                                                                      
          Inhalation Hazard Zone B.                                                                                                                                                             
 ......  Liquefied gas, toxic,              2.3  UN3307               ..  2.3, 5.1..                  3  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone C.                                                                                                                                                             
 ......  Liquefied gas, toxic,              2.3  UN3307               ..  2.3, 5.1..                  4  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          oxidizing, n.o.s.                                                                                                                                                                     
          Inhalation Hazard Zone D.                                                                                                                                                             
 ......  Liquefied gases, non-              2.2  UN1058                   2.2.......                     306...........  304.......  None......        75 kg       150 kg  A                    
          flammable charged with                                                                                                                                                                
          nitrogen, carbon dioxide                                                                                                                                                              
          or air.                                                                                                                                                                               
 ......  Liquefied hydrocarbon      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          gas, see Hydrocarbon                                                                                                                                                                  
          gases, liquefied,                                                                                                                                                                     
          n.o.s., etc.                                                                                                                                                                          
 ......  Liquefied natural gas,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Methane, etc. (UN                                                                                                                                                                 
          1972).                                                                                                                                                                                

[[Page 179]]

                                                                                                                                                                                                
 ......  Liquefied petroleum gas    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Petroleum gases,                                                                                                                                                                  
          liquefied.                                                                                                                                                                            
 ......  Lithium..................          4.3  UN1415                I  4.3.......     A7, A19, B100,  None..........  211.......  244.......    Forbidden        15 kg  E                    
                                                                                                    N45                                                                                         
 ......  Lithium acetylide          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ethylenediamine complex,                                                                                                                                                              
          see Water reactive solid                                                                                                                                                              
          etc.                                                                                                                                                                                  
 ......  Lithium alkyls...........          4.2  UN2445                I  4.2, 4.3..      B11, T28, T40  None..........  181.......  244.......    Forbidden    Forbidden  D                    
 ......  Lithium aluminum hydride.          4.3  UN1410                I  4.3.......         A19, B100,  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Lithium aluminum hydride,          4.3  UN1411                I  4.3, 3....   A2, A3, A11, N34  None..........  201.......  244.......    Forbidden          1 L  D                  40
          ethereal.                                                                                                                                                                             
 ......  Lithium batteries,                   9  UN3091               II   9........                 29  185(i)........  185.......  None......         5 kg         5 kg  A                    
          contained in equipment.                                                                                                                                                               
 ......  Lithium battery..........            9  UN3090               II   9........                 29  185...........  185.......  None......         5 kg  35 kg gross  A                    
 ......  Lithium borohydride......          4.3  UN1413                I  4.3.......     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Lithium ferrosilicon.....          4.3  UN2830               II  4.3.......    A19, B105, B106  151...........  212.......  241.......        15 kg        50 kg  E             40, 85,
                                                                                                                                                                                             103
 ......  Lithium hydride..........          4.3  UN1414                I  4.3.......     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Lithium hydride, fused             4.3  UN2805               II  4.3.......      A8, A19, A20,  151...........  212.......  241.......        15 kg        50 kg  E                    
          solid.                                                                             B101, B106                                                                                         
 ......  Lithium hydroxide,                   8  UN2680               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
          monohydrate or Lithium                                                                                                                                                                
          hydroxide, solid.                                                                                                                                                                     
 ......  Lithium hydroxide,                   8  UN2679               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........                 T8  154...........  203.......  241.......          5 L         60 L  A                  96
                                                                       I                                                                                                                        
 ......  Lithium hypochlorite, dry          5.1  UN1471               II  5.1.......            A9, N34  152...........  212.......  240.......         5 kg        25 kg  A             48, 56,
          or Lithium hypochlorite                                                                                                                                                        58, 69,
          mixtures, dry.                                                                                                                                                                    106,
                                                                                                                                                                                             116
 ......  Lithium in cartridges,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Lithium.                                                                                                                                                                          
 ......  Lithium nitrate..........          5.1  UN2722               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Lithium nitride..........          4.3  UN2806                I  4.3.......   A19, B101, B106,  None..........  211.......  242.......    Forbidden        15 kg  E                    
                                                                                                    N40                                                                                         
 ......  Lithium peroxide.........          5.1  UN1472               II  5.1.......            A9, N34  152...........  212.......  None......         5 kg        25 kg  A             13, 75,
                                                                                                                                                                                             106
 ......  Lithium silicon..........          4.3  UN1417               II  4.3.......    A19, A20, B105,  151...........  212.......  241.......        15 kg        50 kg  A             85, 103
                                                                                                   B106                                                                                         
 ......  LNG, see Methane etc. (UN  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          1972).                                                                                                                                                                                
 ......  London purple............          6.1  UN1621               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  LPG, see Petroleum gases,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquefied.                                                                                                                                                                            
 ......  Lye, see Sodium            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hydroxide, solutions.                                                                                                                                                                 
 ......  Magnesium alkyls.........          4.2  UN3053                I  4.2.......     B11, T28, T29,  None..........  181.......  244.......    Forbidden    Forbidden  D                  18
                                                                                                    T40                                                                                         
 ......  Magnesium aluminum                 4.3  UN1419                I  4.3, 6.1..    A19, B100, N34,  None..........  211.......  242.......    Forbidden        15 kg  E              40, 85
          phosphide.                                                                                N40                                                                                         
+......  Magnesium arsenate.......          6.1  UN1622               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Magnesium bisulfite        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see                                                                                                                                                                         
          Bisulfites, aqueous                                                                                                                                                                   
          solutions, n.o.s.                                                                                                                                                                     
 ......  Magnesium bromate........          5.1  UN1473               II  5.1.......                 A1  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106

[[Page 180]]

                                                                                                                                                                                                
 ......  Magnesium chlorate.......          5.1  UN2723               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Magnesium diamide........          4.2  UN2004               II  4.2.......       A8, A19, A20  None..........  212.......  241.......        15 kg        50 kg  C                    
 ......  Magnesium diphenyl.......          4.2  UN2005                I  4.2.......                     None..........  187.......  244.......    Forbidden    Forbidden  C                    
 ......  Magnesium dross, wet or      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hot.                                                                                                                                                                                  
 ......  Magnesium fluorosilicate.          6.1  UN2853               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Magnesium granules,                4.3  UN2950               II  4.3.......      A1, A19, B108  151...........  213.......  240.......        25 kg       100 kg  A                    
          coated particle size not                                     I                                                                                                                        
          less than 149 microns.                                                                                                                                                                
 ......  Magnesium hydride........          4.3  UN2010                I  4.3.......     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Magnesium or Magnesium             4.1  UN1869               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                  39
          alloys with more than 50                                     I                                                                                                                        
          percent magnesium in                                                                                                                                                                  
          pellets, turnings or                                                                                                                                                                  
          ribbons.                                                                                                                                                                              
 ......  Magnesium nitrate........          5.1  UN1474               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Magnesium perchlorate....          5.1  UN1475               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Magnesium peroxide.......          5.1  UN1476               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             13, 75,
                                                                                                                                                                                             106
 ......  Magnesium phosphide......          4.3  UN2011                I  4.3, 6.1..           A19, N40  None..........  211.......  None......    Forbidden        15 kg  E              40, 85
 ......  Magnesium, powder or               4.3  UN1418                I  4.3, 4.2..           A19, B56  None..........  211.......  244.......    Forbidden        15 kg  A                  39
          Magnesium alloys, powder.                                                                                                                                                             
         .........................  ...........  ...................  II  4.3, 4.2..    A19, B56, B101,  None..........  212.......  241.......        15 kg        50 kg  A                  39
                                                                                                   B106                                                                                         
         .........................  ...........  ...................  II  4.3, 4.2..    A19, B56, B106,  None..........  213.......  241.......        25 kg       100 kg  A                  39
                                                                       I                           B108                                                                                         
 ......  Magnesium scrap, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Magnesium, etc. (UN                                                                                                                                                                   
          1869).                                                                                                                                                                                
 ......  Magnesium silicide.......          4.3  UN2624               II  4.3.......    A19, A20, B105,  151...........  212.......  241.......        15 kg        50 kg  B             85, 103
                                                                                                   B106                                                                                         
 ......  Magnetized material, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          section 173.21.                                                                                                                                                                       
D......  Maleic acid..............            8  NA2215               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Maleic anhydride.........            8  UN2215               II  8.........                 T7  154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Malononitrile............          6.1  UN2647               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  12
 ......  Mancozeb (manganese        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ethylenebisdithiocarbama                                                                                                                                                              
          te complex with zinc)                                                                                                                                                                 
          see Maneb.                                                                                                                                                                            
 ......  Maneb or Maneb                     4.2  UN2210               II  4.2, 4.3..  57, A1, A19, B105  None..........  213.......  242.......        25 kg       100 kg  A                  34
          preparations with not                                        I                                                                                                                        
          less than 60 percent                                                                                                                                                                  
          maneb.                                                                                                                                                                                

[[Page 181]]

                                                                                                                                                                                                
 ......  Maneb stabilized or Maneb          4.3  UN2968               II  4.3.......  54, A1, A19, B108  151...........  213.......  242.......        25 kg       100 kg  B                  34
          preparations, stabilized                                     I                                                                                                                        
          against self-heating.                                                                                                                                                                 
 ......  Manganese nitrate........          5.1  UN2724               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Manganese resinate.......          4.1  UN1330               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Mannitan tetranitrate....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Mannitol hexanitrate         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Mannitol hexanitrate,             1.1D  UN0133               II  1.1D......                121  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted or Nitromannite,                                                                                                                                                               
          wetted with not less                                                                                                                                                                  
          than 40 percent water,                                                                                                                                                                
          or mixture of alcohol                                                                                                                                                                 
          and water, by mass.                                                                                                                                                                   
 ......  Marine pollutants, liquid  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          or solid, n.o.s., see                                                                                                                                                                 
          Environmentally                                                                                                                                                                       
          hazardous substances,                                                                                                                                                                 
          liquid or solid, n.o.s.                                                                                                                                                               
 ......  Matches, block, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Matches, 'strike                                                                                                                                                                      
          anywhere'.                                                                                                                                                                            
 ......  Matches, fusee...........          4.1  UN2254               II  4.1.......                     186...........  186.......  None......    Forbidden    Forbidden  A                    
                                                                       I                                                                                                                        
 ......  Matches, safety (book,             4.1  UN1944               II  4.1.......                     186...........  186.......  None......        25 kg       100 kg  A                    
          card or strike on box).                                      I                                                                                                                        
 ......  Matches, strike anywhere.          4.1  UN1331               II  4.1.......                     186...........  186.......  None......    Forbidden    Forbidden  B                    
                                                                       I                                                                                                                        
 ......  Matches, wax, Vesta......          4.1  UN1945               II  4.1.......                     186...........  186.......  None......        25 kg       100 kg  B                    
                                                                       I                                                                                                                        
 ......  Matting acid, see          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sulfuric acid.                                                                                                                                                                        
 ......  Medicine, liquid,                    3  UN3248               II  3, 6.1....                 36  None..........  202.......  None......          1 L          5 L  B                  40
          flammable, toxic, n.o.s.                                                                                                                                                              
         .........................  ...........  ...................  II  3, 6.1....                 36  150...........  203.......  None......          5 L          5 L  A                    
                                                                       I                                                                                                                        
 ......  Medicine, liquid, toxic,           6.1  UN1851               II  6.1.......                     153...........  202.......  243.......          5 L          5 L  C                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     153...........  203.......  241.......          5 L          5 L  C                  40
                                                                       I                                                                                                                        
 ......  Medicine, solid, toxic,            6.1  UN3249               II  6.1.......                 36  153...........  212.......  None......         5 kg         5 kg  C                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                 36  153...........  213.......  None......         5 kg         5 kg  C                  40
                                                                       I                                                                                                                        
D......  Medicines, corrosive,                8  NA1760               II  8.........                 B3  154...........  202.......  242.......          1 L         30 L  B                  40
          liquid, n.o.s.                                                                                                                                                                        
         .........................  ...........  ...................  II  8.........                     154...........  203.......  241.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
D......  Medicines, corrosive,                8  NA1759               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
          solid, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
D......  Medicines, flammable,                3  NA1993                I  3.........                     150...........  201.......  243.......          1 L         30 L  E                    
          liquid, n.o.s.                                                                                                                                                                        
         .........................  ...........  ...................  II  3.........                     150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........                 B1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
D......  Medicines, flammable,              4.1  NA1325               II  4.1.......                     151...........  212.......  240.......        15 kg        50 kg  B                    
          solid, n.o.s.                                                                                                                                                                         
D......  Medicines, oxidizing               5.1  NA1479               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  B             56, 58,
          substance, solid, n.o.s.                                                                                                                                                       69, 106
 ......  Memtetrahydrophthalic      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          anhydride, see Corrosive                                                                                                                                                              
          liquids, n.o.s.                                                                                                                                                                       
 ......  Mercaptans, liquid,                  3  UN1228               II  3, 6.1....                T13  None..........  202.......  243.......    Forbidden         60 L  B              40, 95
          flammable, toxic, n.o.s.                                                                                                                                                              
          or Mercaptan mixtures,                                                                                                                                                                
          liquid, flammable,                                                                                                                                                                    
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  3, 6.1....             B1, T8  150...........  203.......  242.......          5 L        220 L  A              40, 95
                                                                       I                                                                                                                        

[[Page 182]]

                                                                                                                                                                                                
 ......  Mercaptans, liquid,                6.1  UN3071               II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  C             40, 121
          toxic, flammable, n.o.s.                                                                                                                                                              
          or Mercaptan mixtures,                                                                                                                                                                
          liquid, toxic,                                                                                                                                                                        
          flammable, n.o.s., flash                                                                                                                                                              
          point not less than 23                                                                                                                                                                
          degrees C.                                                                                                                                                                            
 ......  5-Mercaptotetrazol-1-             1.4C  UN0448               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  A             1E, 5E,
          acetic acid.                                                                                                                                                                       24E
 ......  Mercuric arsenate........          6.1  UN1623               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercuric chloride........          6.1  UN1624               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercuric compounds, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Mercury compounds, etc.                                                                                                                                                               
 ......  Mercuric nitrate.........          6.1  UN1625               II  6.1.......                N73  None..........  212.......  242.......        25 kg       100 kg  A                    
+......  Mercuric potassium                 6.1  UN1626                I  6.1.......           N74, N75  None..........  211.......  242.......         5 kg        50 kg  A                  26
          cyanide.                                                                                                                                                                              
 ......  Mercuric sulfocyanate,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Mercury thiocyanate.                                                                                                                                                              
 ......  Mercurol, see Mercury      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nucleate.                                                                                                                                                                             
 ......  Mercurous azide..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Mercurous compounds, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Mercury compounds, etc.                                                                                                                                                               
 ......  Mercurous nitrate........          6.1  UN1627               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
A, W...  Mercury..................            8  UN2809               II  8.........                     164...........  164.......  240.......        35 kg        35 kg  B              40, 97
                                                                       I                                                                                                                        
 ......  Mercury acetate..........          6.1  UN1629               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury acetylide........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Mercury ammonium chloride          6.1  UN1630               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury based pesticides,            3  UN2778                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Mercury based pesticides,          6.1  UN3012                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Mercury based pesticides,          6.1  UN3011                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic,                                                                                                                                                                        
          flammable, flashpoint                                                                                                                                                                 
          not less than 23 degrees                                                                                                                                                              
          C.                                                                                                                                                                                    
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....                T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Mercury based pesticides,          6.1  UN2777                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40

[[Page 183]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Mercury benzoate.........          6.1  UN1631               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury bromides.........          6.1  UN1634               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury compounds,                 6.1  UN2024                I  6.1.......                     None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, n.o.s.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                     None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  203.......  241.......         60 L        220 L  B                  40
                                                                       I                                                                                                                        
 ......  Mercury compounds, solid,          6.1  UN2025                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
A......  Mercury contained in                 8  UN2809               II  8.........                     None..........  164.......  None......     No limit     No limit  B              40, 97
          manufactured articles.                                       I                                                                                                                        
 ......  Mercury cyanide..........          6.1  UN1636               II  6.1.......           N74, N75  None..........  212.......  242.......        25 kg       100 kg  A                  26
 ......  Mercury fulminate, wetted         1.1A  UN0135               II   1.1A.....           111, 117  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          with not less than 20                                                                                                                                                                 
          percent water, or                                                                                                                                                                     
          mixture of alcohol and                                                                                                                                                                
          water, by mass.                                                                                                                                                                       
 ......  Mercury gluconate........          6.1  UN1637               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury iodide, solid....          6.1  UN1638               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury iodide aquabasic     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ammonobasic (Iodide of                                                                                                                                                                
          Millon's base).                                                                                                                                                                       
 ......  Mercury iodide, solution.          6.1  UN1638               II  6.1.......                     None..........  202.......  243.......          5 L         60 L  A                    
 ......  Mercury nitride..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Mercury nucleate.........          6.1  UN1639               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury oleate...........          6.1  UN1640               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury oxide............          6.1  UN1641               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury oxycyanide.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Mercury oxycyanide,                6.1  UN1642               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A              26, 91
          desensitized.                                                                                                                                                                         
 ......  Mercury potassium iodide.          6.1  UN1643               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury salicylate.......          6.1  UN1644               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
+......  Mercury sulfates.........          6.1  UN1645               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mercury thiocyanate......          6.1  UN1646               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Mesityl oxide............            3  UN1229               II  3.........             B1, T1  None..........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Metal alkyl halides,               4.2  UN3049                I  4.2.......      B9, B11, T28,  None..........  181.......  244.......    Forbidden    Forbidden  D                    
          n.o.s. or Metal aryl                                                                 T29, T40                                                                                         
          halides, n.o.s.                                                                                                                                                                       
 ......  Metal alkyl hydrides,              4.2  UN3050                I  4.2.......      B9, B11, T28,  None..........  181.......  244.......    Forbidden    Forbidden  D                    
          n.o.s. or Metal aryl                                                                 T29, T40                                                                                         
          hydrides, n.o.s.                                                                                                                                                                      
D......  Metal alkyl, solution,               3  NA9195               II  3.........                     150...........  202.......  242.......          1 L          4 L  B                    
          n.o.s.                                                                                                                                                                                
 ......  Metal alkyls, n.o.s. or            4.2  UN2003                I  4.2.......           B11, T42  None..........  181.......  244.......    Forbidden    Forbidden  D                    
          Metal aryls, n.o.s.                                                                                                                                                                   
 ......  Metal carbonyls, n.o.s...          6.1  UN3281                I  6.1.......                  5  None..........  201.......  243.......          1 L         30 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Metal catalyst, dry......          4.2  UN2881                I  4.2.......                N34  None..........  187.......  None......    Forbidden    Forbidden  C                    
         .........................  ...........  ...................  II  4.2.......                N34  None..........  187.......  242.......    Forbidden        50 kg  C                    
         .........................  ...........  ...................  II  4.2.......                N34  241...........  187.......  None......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Metal catalyst, wetted             4.2  UN1378               II  4.2.......        A2, A8, N34  None..........  212.......  None......    Forbidden        50 kg  C                    
          with a visible excess of                                                                                                                                                              
          liquid.                                                                                                                                                                               
 ......  Metal hydrides,                    4.1  UN3182               II  4.1.......                 A1  151...........  212.......  240.......        15 kg        50 kg  E                    
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  E                    
                                                                       I                                                                                                                        
 ......  Metal hydrides, water              4.3  UN1409                I  4.3.......    A19, B100, N34,  None..........  211.......  242.......    Forbidden        15 kg  D                    
          reactive, n.o.s.                                                                          N40                                                                                         

[[Page 184]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  4.3.......   A19, B101, B106,  151...........  212.......  242.......        15 kg        50 kg  D                    
                                                                                               N34, N40                                                                                         
 ......  Metal powder, self-                4.2  UN3189               II  4.2.......                     None..........  212.......  241.......        15 kg        50 kg   C                   
          heating, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  4.2.......                     None..........  213.......  241.......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Metal powders, flammable,          4.1  UN3089               II  4.1.......                     151...........  212.......  240.......        15 kg        50 kg  B                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.1.......                     151...........  213.......  240.......        25 kg       100 kg  B                    
                                                                       I                                                                                                                        
 ......  Metal salts of methyl        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitramine (dry).                                                                                                                                                                      
 ......  Metal salts of organic             4.1  UN3181               II  4.1.......                 A1  151...........  212.......  240.......        15 kg        50 kg  B                  40
          compounds, flammable,                                                                                                                                                                 
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  B                  40
                                                                       I                                                                                                                        
 ......  Metaldehyde..............          4.1  UN1332               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Metallic substance, water-         4.3  UN3208                I  4.3.......         B101, B106  None..........  211.......  242.......    Forbidden        15 kg  E                  40
          reactive, n.o.s.                                                                                                                                                                      
         .........................  ...........  ...................  II  4.3.......         B101, B106  151...........  212.......  242.......        15 kg        50 kg  E                  40
         .........................  ...........  ...................  II  4.3.......         B105, B108  151...........  213.......  241.......        25 kg       100 kg  E                  40
                                                                       I                                                                                                                        
 ......  Metallic substance, water-         4.3  UN3209                I  4.3, 4.2..               B100  None..........  211.......  242.......    Forbidden        15 kg  E                  40
          reactive, self-heating,                                                                                                                                                               
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.3, 4.2..         B101, B106  None..........  212.......  242.......        15 kg        50 kg  E                  40
         .........................  ...........  ...................  II  4.3, 4.2..         B101, B106  None..........  213.......  242.......        25 kg       100 kg  E                  40
                                                                       I                                                                                                                        
 ......  Methacrylaldehyde,                   3  UN2396               II  3, 6.1....             45, T8  None..........  202.......  243.......          1 L         60 L  E                  40
          inhibited.                                                                                                                                                                            
 ......  Methacrylic acid,                    8  UN2531               II  8.........            T8, T47  154...........  203.......  241.......          5 L         60 L  A                    
          inhibited.                                                   I                                                                                                                        
+......  Methacrylonitrile,                   3  UN3079                I  3, 6.1....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden         30 L  D             12, 40,
          inhibited.                                                                     B74, T38, T43,                                                                                       48
                                                                                                    T45                                                                                         
 ......  Methallyl alcohol........            3  UN2614               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methane and hydrogen,      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixtures, see Hydrogen                                                                                                                                                                
          and methane, mixtures,                                                                                                                                                                
          etc.                                                                                                                                                                                  
 ......  Methane, compressed or             2.1  UN1971                   2.1.......                     306...........  302.......  302.......    Forbidden       150 kg  E                  40
          Natural gas, compressed                                                                                                                                                               
          (with high methane                                                                                                                                                                    
          content).                                                                                                                                                                             
 ......  Methane, refrigerated              2.1  UN1972                   2.1.......                     None..........  None......  318.......    Forbidden    Forbidden  D                  40
          liquid (cryogenic                                                                                                                                                                     
          liquid) or Natural gas,                                                                                                                                                               
          refrigerated liquid                                                                                                                                                                   
          (cryogenic liquid), with                                                                                                                                                              
          high methane content).                                                                                                                                                                

[[Page 185]]

                                                                                                                                                                                                
         Methanesulfonyl chloride.          6.1  UN3246                I  6.1, 8....     2,25, B9, B14,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B32, B74, T38,                                                                                         
                                                                                               T43, T45                                                                                         
I......  Methanol.................            3  UN1230               II  3, 6.1....                 T8  150...........  202.......  242.......          1 L         60 L  B                  40
D......  Methanol.................            3  UN1230               II  3.........                 T8  150...........  202.......  242.......          1 L         60 L  B                  40
 ......  Methazoic acid...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  4-Methoxy-4-methylpentan-            3  UN2293               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          2-one.                                                       I                                                                                                                        
 ......  1-Methoxy-2-propanol.....            3  UN3092               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
+......  Methoxymethyl isocyanate.            3  UN2605                I  3, 6.1....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B72, T38, T43,                                                                                         
                                                                                                    T44                                                                                         
 ......  Methyl acetate...........            3  UN1231               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Methyl acetylene and               2.1  UN1060                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
          propadiene mixtures,                                                                                                                                                                  
          stabilized.                                                                                                                                                                           
 ......  Methyl acrylate,                     3  UN1919               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
          inhibited.                                                                                                                                                                            
 ......  Methyl alcohol, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Methanol.                                                                                                                                                                             
 ......  Methyl allyl chloride....            3  UN2554               II  3.........           B101, T8  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Methyl amyl ketone, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Amyl methyl ketone.                                                                                                                                                                   
 ......  Methyl bromide...........          2.3  UN1062                   2.3.......             3, B14  None..........  193.......  314, 315..    Forbidden        25 kg  D                  40
 ......  Methyl bromide and         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chloropicrin mixtures                                                                                                                                                                 
          with more than 2 percent                                                                                                                                                              
          chloropicrin, see                                                                                                                                                                     
          Chloropicrin and methyl                                                                                                                                                               
          bromide mixtures.                                                                                                                                                                     
 ......  Methyl bromide and         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chloropicrin mixtures                                                                                                                                                                 
          with not more than 2                                                                                                                                                                  
          percent chloropicrin,                                                                                                                                                                 
          see Methyl bromide.                                                                                                                                                                   
 ......  Methyl bromide and                 6.1  UN1647                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden         30 L  C                  40
          ethylene dibromide                                                             B74, N65, T38,                                                                                         
          mixtures, liquid.                                                                    T43, T45                                                                                         
 ......  Methyl bromoacetate......          6.1  UN2643               II  6.1.......           B100, T8  None..........  202.......  243.......          5 L         60 L  D                  40
 ......  2-Methyl-1-butene........            3  UN2459                I  3.........                T14  None..........  201.......  243.......          1 L         30 L  E                    
 ......  2-Methyl-2-butene........            3  UN2460               II  3.........                T14  None..........  202.......  242.......          5 L         60 L  E                    
 ......  3-Methyl-1-butene........            3  UN2561                I  3.........                T20  None..........  201.......  243.......          1 L         30 L  E                    
 ......  Methyl tert-butyl ether..            3  UN2398               II  3.........          B101, T14  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Methyl butyrate..........            3  UN1237               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Methyl chloride, or                2.1  UN1063                   2.1.......                     306...........  304.......  314, 315..         5 kg       100 kg  D                  40
          Refrigerant gas R 40.                                                                                                                                                                 
 ......  Methyl chloride and        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chloropicrin mixtures,                                                                                                                                                                
          see Chloropicrin and                                                                                                                                                                  
          methyl chloride mixtures.                                                                                                                                                             
 ......  Methyl chloride and                2.1  UN1912                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  D                  40
          methylene chloride                                                                                                                                                                    
          mixtures.                                                                                                                                                                             
 ......  Methyl chloroacetate.....          6.1  UN2295                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  D             .......
 ......  Methyl chlorocarbonate,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Methyl chloroformate.                                                                                                                                                             
 ......  Methyl chloroform, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          1,1,1-Trichloroethane.                                                                                                                                                                

[[Page 186]]

                                                                                                                                                                                                
 ......  Methyl chloroformate.....          6.1  UN1238                I  6.1, 3, 8.   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D             21, 40,
                                                                                         B72, N34, T38,                                                                                      100
                                                                                               T43, T44                                                                                         
 ......  Methyl chloromethyl ether          6.1  UN1239                I  6.1, 3....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B72, T38, T43,                                                                                         
                                                                                                    T44                                                                                         
 ......  Methyl 2-chloropropionate            3  UN2933               II  3.........             B1, T7  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methyl dichloroacetate...          6.1  UN2299               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methyl ethyl ether, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethyl methyl ether.                                                                                                                                                                   
 ......  Methyl ethyl ketone, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethyl methyl ketone.                                                                                                                                                                  
 ......  Methyl ethyl ketone          Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxide, in solution                                                                                                                                                                 
          with more than 9 percent                                                                                                                                                              
          by mass active oxygen.                                                                                                                                                                
 ......  2-Methyl-5-ethylpyridine.          6.1  UN2300               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methyl fluoride, or                2.1  UN2454                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          Refrigerant gas R 41.                                                                                                                                                                 
 ......  Methyl formate...........            3  UN1243                I  3.........                T20  150...........  201.......  243.......          1 L         30 L  E                    
 ......  2-Methyl-2-heptanethiol..          6.1  UN3023                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             40, 102
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Methyl iodide............          6.1  UN2644                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  A              12, 40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Methyl isobutyl carbinol.            3  UN2053               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methyl isobutyl ketone...            3  UN1245               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Methyl isobutyl ketone       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          peroxide, in solution                                                                                                                                                                 
          with more than 9 percent                                                                                                                                                              
          by mass active oxygen.                                                                                                                                                                
 ......  Methyl isocyanate........          6.1  UN2480                I  6.1, 3....    1, A7, B9, B14,  None..........  226.......  244.......    Forbidden    Forbidden  D              26, 40
                                                                                         B30, B72, T38,                                                                                         
                                                                                               T43, T44                                                                                         
 ......  Methyl isopropenyl                   3  UN1246               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                    
          ketone, inhibited.                                                                                                                                                                    
 ......  Methyl isothiocyanate....          6.1  UN2477                I  6.1,3.....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  A             .......
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Methyl isovalerate.......            3  UN2400               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    

[[Page 187]]

                                                                                                                                                                                                
 ......  Methyl magnesium bromide,          4.3  UN1928                I  4.3, 3....                     None..........  201.......  243.......    Forbidden          1 L  D                    
          in ethyl ether.                                                                                                                                                                       
 ......  Methyl mercaptan.........          2.3  UN1064                   2.3, 2.1..     3, B7, B9, B14  None..........  304.......  314, 315..    Forbidden        25 kg  D                  40
 ......  Methyl                     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mercaptopropionaldehyde,                                                                                                                                                              
          see Thia-4-pentanal.                                                                                                                                                                  
 ......  Methyl methacrylate                  3  UN1247               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                  40
          monomer, inhibited.                                                                                                                                                                   
 ......  Methyl nitramine (dry)...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Methyl nitrate...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Methyl nitrite...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Methyl norbornene          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dicarboxylic anhydride,                                                                                                                                                               
          see Corrosive liquids,                                                                                                                                                                
          n.o.s.                                                                                                                                                                                
 ......  Methyl orthosilicate.....          6.1  UN2606                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden         30 L  E                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
D......  Methyl parathion liquid..          6.1  NA3018               II  6.1.......           N76, T14  None..........  202.......  243.......    Forbidden          1 L  A                  40
D......  Methyl parathion solid...          6.1  NA2783               II  6.1.......                N77  None..........  212.......  242.......        25 kg       100 kg  A                  40
D......  Methyl phosphonic                  6.1  NA9206                I  6.1, 8....    2, A3, B9, B14,  None..........  227.......  244.......    Forbidden    Forbidden  C                    
          dichloride.                                                                    B32, B74, N34,                                                                                         
                                                                                         N43, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Methyl phosphonothioic     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dichloride, anhydrous,                                                                                                                                                                
          see Corrosive liquid,                                                                                                                                                                 
          n.o.s.                                                                                                                                                                                
D......  Methyl phosphonous                 6.1  NA2845                I  6.1, 4.2..   2, B9, B14, B16,  None..........  227.......  244.......    Forbidden    Forbidden  D                  18
          dichloride, pyrophoric                                                         B32, B74, T38,                                                                                         
          liquid.                                                                              T43, T45                                                                                         
 ......  Methyl picric acid (heavy    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          metal salts of).                                                                                                                                                                      
 ......  Methyl propionate........            3  UN1248               II  3.........           B101, T2  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Methyl propyl ether......            3  UN2612               II  3.........                T14  150...........  202.......  242.......          5 L         60 L  E                  40
 ......  Methyl propyl ketone.....            3  UN1249               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Methyl sulfate, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dimethyl sulfate.                                                                                                                                                                     
 ......  Methyl sulfide, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dimethyl sulfide.                                                                                                                                                                     
 ......  Methyl trichloroacetate..          6.1  UN2533               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methyl trimethylol           Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methane trinitrate.                                                                                                                                                                   
 ......  Methyl vinyl ketone,               6.1  UN1251                I  6.1, 3, 8.    1, 25, B9, B14,  None..........  226.......  244.......    Forbidden    Forbidden  B                  40
          stabilized.                                                                    B30, B72, T38,                                                                                         
                                                                                               T43, T44                                                                                         
 ......  Methylal.................            3  UN1234               II  3.........                T14  None..........  202.......  242.......          5 L         60 L  E                    
 ......  Methylamine, anhydrous...          2.1  UN1061                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Methylamine, aqueous                 3  UN1235               II  3, 8......             B1, T8  150...........  202.......  243.......          1 L          5 L  E                  41
          solution.                                                                                                                                                                             
 ......  Methylamine dinitramine      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          and dry salts thereof.                                                                                                                                                                
 ......  Methylamine nitroform....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Methylamine perchlorate      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  Methylamyl acetate.......            3  UN1233               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 188]]

                                                                                                                                                                                                
 ......  N-Methylaniline..........          6.1  UN2294               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  alpha-Methylbenzyl                 6.1  UN2937               II  6.1.......                 T1  153...........  203.......  241.......         60 L        220 L  A                    
          alcohol.                                                     I                                                                                                                        
 ......  3-Methylbutan-2-one......            3  UN2397               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  N-Methylbutylamine.......            3  UN2945               II  3, 8......                 T8  None..........  202.......  243.......          1 L          5 L  B                  40
 ......  Methylchlorosilane.......          2.3  UN2534                   2.3, 2.1,      2, A2, A3, A7,  None..........  226.......  314, 315..    Forbidden    Forbidden  D              17, 40
                                                                           8.              B9, B14, N34                                                                                         
 ......  Methylcyclohexane........            3  UN2296               II  3.........             B1, T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Methylcyclohexanols,                 3  UN2617               II  3.........             B1, T2  150...........  203.......  242.......         60 L        220 L  A                    
          flammable.                                                   I                                                                                                                        
 ......  Methylcyclohexanone......            3  UN2297               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methylcyclopentane.......            3  UN2298               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
D......  Methyldichloroarsine.....          6.1  NA1556                I  6.1.......                  2  None..........  192.......  None......    Forbidden    Forbidden  D              40, 95
 ......  Methyldichlorosilane.....          4.3  UN1242                I  4.3, 8, 3.    A2, A3, A7, B6,  None..........  201.......  243.......    Forbidden          1 L  D             21, 28,
                                                                                         B77, N34, T16,                                                                                  40, 49,
                                                                                                    T26                                                                                      100
 ......  Methylene chloride, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dichloromethane.                                                                                                                                                                      
 ......  Methylene glycol             Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dinitrate.                                                                                                                                                                            
 ......  2-Methylfuran............            3  UN2301               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  E                    
 ......  a-Methylglucoside            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetranitrate.                                                                                                                                                                         
 ......  a-Methylglycerol             Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trinitrate.                                                                                                                                                                           
 ......  5-Methylhexan-2-one......            3  UN2302               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methylhydrazine..........          6.1  UN1244                I  6.1, 3, 8.   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D             21, 40,
                                                                                         B72, B77, N34,                                                                                  49, 100
                                                                                          T38, T43, T44                                                                                         
 ......  4-Methylmorpholine or n-             3  UN2535               II  3, 8......             B6, T8  None..........  202.......  243.......          1 L          5 L  B                  40
          methylmorpholine.                                                                                                                                                                     
 ......  Methylpentadienes........            3  UN2461               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  E                    
 ......  2-Methylpentan-2-ol......            3  UN2560               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Methylpentanes, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hexanes.                                                                                                                                                                              
 ......  Methylphenyldichlorosilan            8  UN2437               II  8.........            T8, T26  154...........  202.......  242.......          1 L         30 L  C                  40
          e.                                                                                                                                                                                    
 ......  1-Methylpiperidine.......            3  UN2399               II  3, 8......                 T8  None..........  202.......  243.......          1 L          5 L  B                    
 ......  Methyltetrahydrofuran....            3  UN2536               II  3.........           B101, T7  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Methyltrichlorosilane....            3  UN1250                I  3, 8......  A7, B6, B77, N34,  None..........  201.......  243.......    Forbidden        2.5 L  B                  40
                                                                                               T14, T26                                                                                         
 ......  alpha-Methylvaleraldehyde            3  UN2367               II  3.........             B1, T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Mine rescue equipment      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          containing carbon                                                                                                                                                                     
          dioxide, see Carbon                                                                                                                                                                   
          dioxide.                                                                                                                                                                              

[[Page 189]]

                                                                                                                                                                                                
 ......  Mines with bursting               1.1F  UN0136               II   1.1F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          charge.                                                                                                                                                                               
 ......  Mines with bursting               1.1D  UN0137               II   1.1D.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          charge.                                                                                                                                                                               
 ......  Mines with bursting               1.2D  UN0138               II   1.2D.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          charge.                                                                                                                                                                               
 ......  Mines with bursting               1.2F  UN0294               II   1.2F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          charge.                                                                                                                                                                               
 ......  Mixed acid, see Nitrating  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          acid, mixtures etc.                                                                                                                                                                   
 ......  Mobility aids, see Wheel   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chair, electric.                                                                                                                                                                      
D......  Model rocket motor.......         1.4C  NA0276               II   1.4C.....                 51  None..........  62........  None......    Forbidden        75 kg  A                 24E
D......  Model rocket motor.......         1.4S  NA0323               II   1.4S.....                 51  None..........  62........  None......        25 kg       100 kg  A                  9E
 ......  Molybdenum pentachloride.            8  UN2508               II  8.........            T8, T26  154...........  213.......  240.......        25 kg       100 kg  C                  40
                                                                       I                                                                                                                        
 ......  Monochloroacetone            Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (unstabilized).                                                                                                                                                                       
 ......  Monochloroethylene, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Vinyl chloride,                                                                                                                                                                       
          inhibited.                                                                                                                                                                            
 ......  Monoethanolamine, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethanolamine, solutions.                                                                                                                                                              
 ......  Monoethylamine, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ethylamine.                                                                                                                                                                           
 ......  Morpholine...............            3  UN2054               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Morpholine, aqueous,       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixture, see Corrosive                                                                                                                                                                
          liquids, n.o.s.                                                                                                                                                                       
 ......  Motor fuel anti-knock      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          compounds see Motor fuel                                                                                                                                                              
          anti-knock mixtures.                                                                                                                                                                  
+......  Motor fuel anti-knock              6.1  UN1649                I  6.1, 3....  14, B9, B90, T26,  None..........  201.......  244.......    Forbidden         30 L  D              25, 40
          mixtures.                                                                                 T39                                                                                         
 ......  Motor spirit, see          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Gasoline.                                                                                                                                                                             
 ......  Muriatic acid, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hydrochloric acid                                                                                                                                                                     
          solution.                                                                                                                                                                             
 ......  Musk xylene, see 5-tert-   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Butyl2,4,6-trinitro-m-                                                                                                                                                                
          xylene.                                                                                                                                                                               
 ......  Naphtha see Petroleum      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          distallate n.o.s.                                                                                                                                                                     
 ......  Naphthalene, crude or              4.1  UN1334               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
          Naphthalene, refined.                                        I                                                                                                                        
 ......  Naphthalene diozonide....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Naphthalene, molten......          4.1  UN2304               II  4.1.......             A1, T8  151...........  213.......  241.......    Forbidden    Forbidden  C                    
                                                                       I                                                                                                                        
 ......  beta-Naphthylamine.......          6.1  UN1650               II  6.1.......           T12, T26  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  alpha-Naphthylamine......          6.1  UN2077               II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Naphthylamineperchlorate.    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Naphthylthiourea.........          6.1  UN1651               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Naphthylurea.............          6.1  UN1652               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Natural gases (with high   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methane content), see                                                                                                                                                                 
          Methane, etc. (UN 1971,                                                                                                                                                               
          UN 1972).                                                                                                                                                                             
 ......  Neohexane, see Hexanes...  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Neon, compressed.........          2.2  UN1065                   2.2.......                     306...........  302.......  302.......        75 kg       150 kg  A                    
 ......  Neon, refrigerated liquid          2.2  UN1913                   2.2.......                     320...........  316.......  None......        50 kg       500 kg  B                    
          (cryogenic liquid).                                                                                                                                                                   
 ......  New explosive or           ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          explosive device, see                                                                                                                                                                 
          sections 173.51 and                                                                                                                                                                   
          173.56.                                                                                                                                                                               
 ......  Nickel carbonyl..........          6.1  UN1259                I  6.1, 3....                  1  None..........  198.......  None......    Forbidden    Forbidden  D              18, 40

[[Page 190]]

                                                                                                                                                                                                
 ......  Nickel cyanide...........          6.1  UN1653               II  6.1.......           N74, N75  None..........  212.......  242.......        25 kg       100 kg  A                  26
 ......  Nickel nitrate...........          5.1  UN2725               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Nickel nitrite...........          5.1  UN2726               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A              56, 58
                                                                       I                                                                                                                        
 ......  Nickel picrate...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nicotine.................          6.1  UN1654               II  6.1.......                     None..........  202.......  243.......          5 L         60 L  A                    
 ......  Nicotine compounds,                6.1  UN3144                I  6.1.......            A4, T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, n.o.s. or                                                                                                                                                                     
          Nicotine preparations,                                                                                                                                                                
          liquid, n.o.s.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  B                  40
                                                                       I                                                                                                                        
 ......  Nicotine compounds,                6.1  UN1655                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  B                    
          solid, n.o.s. or                                                                                                                                                                      
          Nicotine preparations,                                                                                                                                                                
          solid, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Nicotine hydrochloride or          6.1  UN1656               II  6.1.......                     None..........  202.......  243.......          5 L         60 L  A                    
          Nicotine hydrochloride                                                                                                                                                                
          solution.                                                                                                                                                                             
 ......  Nicotine salicylate......          6.1  UN1657               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Nicotine sulfate, solid..          6.1  UN1658               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Nicotine sulfate,                  6.1  UN1658               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
          solution.                                                                                                                                                                             
 ......  Nicotine tartrate........          6.1  UN1659               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Nitrated paper (unstable)    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitrates, inorganic,               5.1  UN3218               II  5.1.......             58, T8  152...........  202.......  242.......          1 L          5 L  B                  46
          aqueous solution, n.o.s.                                                                                                                                                              
         .........................  ...........  ...................  II  5.1.......             58, T8  152...........  203.......  241.......        2.5 L         30 L  B                  46
                                                                       I                                                                                                                        
 ......  Nitrates, inorganic,               5.1  UN1477               II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  A                  46
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  5.1.......                     152...........  213.......  240.......        25 kg       100 kg  A                  46
                                                                       I                                                                                                                        
 ......  Nitrates of diazonium        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          compounds.                                                                                                                                                                            
 ......  Nitrating acid mixtures,             8  UN1826                I  8, 5.1....           T12, T27  None..........  158.......  243.......    Forbidden        2.5 L  D              40, 66
          spent with more than 50                                                                                                                                                               
          percent nitric acid.                                                                                                                                                                  
 ......  Nitrating acid mixtures              8  UN1826               II  8.........     B2, B100, T12,  None..........  158.......  242.......    Forbidden         30 L  D                  40
          spent with not more than                                                                  T27                                                                                         
          50 percent nitric acid.                                                                                                                                                               
 ......  Nitrating acid mixtures              8  UN1796                I  8, 5.1....           T12, T27  None..........  158.......  243.......    Forbidden        2.5 L  D              40, 66
          with more than 50                                                                                                                                                                     
          percent nitric acid.                                                                                                                                                                  
 ......  Nitrating acid mixtures              8  UN1796               II  8.........       B2, T12, T27  None..........  158.......  242.......    Forbidden         30 L  D                  40
          with not more than 50                                                                                                                                                                 
          percent nitric acid.                                                                                                                                                                  
 ......  Nitric acid other than               8  UN2031                I  8.........  B47, B53, T9, T27  None..........  158.......  243.......    Forbidden        2.5 L  D             44, 66,
          red fuming, with more                                                                                                                                                          89, 90,
          than 70 percent nitric                                                                                                                                                            110,
          acid.                                                                                                                                                                              111

[[Page 191]]

                                                                                                                                                                                                
 ......  Nitric acid other than               8  UN2031               II  8.........  B2, B47, B53, T9,  None..........  158.......  242.......    Forbidden         30 L  D             44, 66,
          red fuming, with not                                                                      T27                                                                                  89, 90,
          more than 70 percent                                                                                                                                                              110,
          nitric acid.                                                                                                                                                                       111
+......  Nitric acid, red fuming..            8  UN2032                I  8, 5.1,      2, B9, B32, B74,  None..........  227.......  244.......    Forbidden    Forbidden  D             40, 66,
                                                                           6.1.           T38, T43, T45                                                                                  74, 89,
                                                                                                                                                                                              90
 ......  Nitric oxide, compressed.          2.3  UN1660                   2.3, 5.1,   1, B37, B46, B50,  None..........  337.......  None......    Forbidden    Forbidden  D             40, 89,
                                                                           8.                  B60, B77                                                                                       90
 ......  Nitric oxide and                   2.3  UN1975                   2.3, 5.1,     1, B7, B9, B14,  None..........  337.......  None......    Forbidden    Forbidden  D             40, 89,
          dinitrogen tetroxide                                             8.            B45, B46, B61,                                                                                       90
          mixtures or Nitric oxide                                                        B66, B67, B77                                                                                         
          and nitrogen dioxide                                                                                                                                                                  
          mixtures.                                                                                                                                                                             
 ......  Nitriles, flammable,                 3  UN3273                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  E              40, 52
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  3, 6.1....                T14  None..........  202.......  243.......          1 L         60 L  B              40, 52
 ......  Nitriles, toxic,                   6.1  UN3275                I  6.1, 3....                  5  None..........  201.......  243.......          1 L         30 L  B                  40
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
 ......  Nitriles, toxic, n.o.s...          6.1  UN3276                I  6.1.......                  5  None..........  201.......  243.......          1 L         30 L  B                    
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Nitrites, inorganic,               5.1  UN3219               II  5.1.......                 T8  152...........  202.......  242.......          1 L          5 L  B             46, 56,
          aqueous solution, n.o.s.                                                                                                                                                            58
         .........................  ...........  ...................  II  5.1.......                 T8  152...........  203.......  241.......        2.5 L         30 L  B             46, 56,
                                                                       I                                                                                                                      58
 ......  Nitrites, inorganic,               5.1  UN2627               II  5.1.......                 33  152...........  212.......  None......         5 kg        25 kg  A             46, 56,
          n.o.s.                                                                                                                                                                              58
 ......  3-Nitro-4-                         6.1  UN2307               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                  40
          chlorobenzotrifluoride.                                                                                                                                                               
 ......  6-Nitro-4-diazotoluene-3-    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          sulfonic acid (dry).                                                                                                                                                                  
 ......  Nitro isobutane triol        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trinitrate.                                                                                                                                                                           
 ......  N-Nitro-N-                   Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methylglycolamide                                                                                                                                                                     
          nitrate.                                                                                                                                                                              
 ......  2-Nitro-2-methylpropanol     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitrate.                                                                                                                                                                              
 ......  Nitro urea...............         1.1D  UN0147               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  N-Nitroaniline...........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitroanilines (o-; m-; p-          6.1  UN1661               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                    
          ;).                                                                                                                                                                                   
 ......  Nitroanisole.............          6.1  UN2730               II  6.1.......                 T8  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Nitrobenzene.............          6.1  UN1662               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  m-Nitrobenzene diazonium     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          perchlorate.                                                                                                                                                                          
 ......  Nitrobenzenesulfonic acid            8  UN2305               II  8.........                     154...........  202.......  242.......          1 L         30 L  A                    
 ......  Nitrobenzol, see           ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitrobenzene.                                                                                                                                                                         
 ......  5-Nitrobenzotriazol......         1.1D  UN0385               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             1E, 5E,
                                                                                                                                                                                             19E
 ......  Nitrobenzotrifluorides...          6.1  UN2306               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Nitrobromobenzenes liquid          6.1  UN2732               II  6.1.......            T8, T38  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Nitrobromobenzenes solid.          6.1  UN2732               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Nitrocellulose, dry or            1.1D  UN0340               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             4E, 27E
          wetted with less than 25                                                                                                                                                              
          percent water (or                                                                                                                                                                     
          alcohol), by mass.                                                                                                                                                                    
 ......  Nitrocellulose membrane            4.1  UN3270               II  4.1.......             43, A1  151...........  212.......  240.......         1 kg        15 kg  D                    
          filters.                                                                                                                                                                              

[[Page 192]]

                                                                                                                                                                                                
 ......  Nitrocellulose,                   1.3C  UN0343               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          plasticized with not                                                                                                                                                                  
          less than 18 percent                                                                                                                                                                  
          plasticizing substance,                                                                                                                                                               
          by mass.                                                                                                                                                                              
 ......  Nitrocellulose, solution,            3  UN2059               II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
          flammable with not more                                                                                                                                                               
          than 12.6 percent                                                                                                                                                                     
          nitrogen, by mass, and                                                                                                                                                                
          not more than 55 percent                                                                                                                                                              
          nitrocellulose.                                                                                                                                                                       
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Nitrocellulose,                   1.1D  UN0341               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             4E, 27E
          unmodified or                                                                                                                                                                         
          plasticized with less                                                                                                                                                                 
          than 18 percent                                                                                                                                                                       
          plasticizing substance,                                                                                                                                                               
          by mass.                                                                                                                                                                              
 ......  Nitrocellulose, wetted            1.3C  UN0342               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          with not less than 25                                                                                                                                                                 
          percent alcohol, by mass.                                                                                                                                                             
 ......  Nitrocellulose with                4.1  UN2556               II  4.1.......                     151...........  212.......  None......         1 kg        15 kg  D                  28
          alcohol with not less                                                                                                                                                                 
          than 25 percent alcohol                                                                                                                                                               
          by mass, and with not                                                                                                                                                                 
          more than 12.6 percent                                                                                                                                                                
          nitrogen, by dry mass.                                                                                                                                                                
 ......  Nitrocellulose, with not           4.1  UN2557               II  4.1.......                 44  151...........  212.......  None......         1 kg        15 kg  D                  28
          more than 12.6 percent                                                                                                                                                                
          nitrogen, by dry mass,                                                                                                                                                                
          or Nitrocellulose                                                                                                                                                                     
          mixture with pigment or                                                                                                                                                               
          Nitrocellulose mixture                                                                                                                                                                
          with plasticizer or                                                                                                                                                                   
          Nitrocellulose mixture                                                                                                                                                                
          with pigment and                                                                                                                                                                      
          plasticizer.                                                                                                                                                                          
 ......  Nitrocellulose with water          4.1  UN2555               II  4.1.......                     151...........  212.......  None......        15 kg        50 kg  E                  28
          with not less than 25                                                                                                                                                                 
          percent water, by mass.                                                                                                                                                               
 ......  Nitrochlorobenzene, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chloronitrobenzenes etc.                                                                                                                                                              
 ......  Nitrocresols.............          6.1  UN2446               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Nitroethane..............            3  UN2842               II  3.........             B1, T8  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Nitroethyl nitrate.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitroethylene polymer....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitrogen, compressed.....          2.2  UN1066                   2.2.......                     306...........  302.......  314, 315..        75 kg       150 kg  A                    
 ......  Nitrogen dioxide, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dinitrogen tetroxide.                                                                                                                                                                 
 ......  Nitrogen fertilizer        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see Fertilizer                                                                                                                                                              
          ammoniating solution etc.                                                                                                                                                             

[[Page 193]]

                                                                                                                                                                                                
 ......  Nitrogen, mixtures with    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          rare gases, see Rare                                                                                                                                                                  
          gases and nitrogen                                                                                                                                                                    
          mixtures.                                                                                                                                                                             
 ......  Nitrogen peroxide, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dinitrogen tetroxide,                                                                                                                                                                 
          liquefied.                                                                                                                                                                            
 ......  Nitrogen, refrigerated             2.2  UN1977                   2.2.......                     320...........  316.......  318.......        50 kg       500 kg  D                    
          liquid cryogenic liquid.                                                                                                                                                              
 ......  Nitrogen tetroxide and     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitric oxide mixtures,                                                                                                                                                                
          see Nitric oxide and                                                                                                                                                                  
          nitrogen tetroxide                                                                                                                                                                    
          mixtures.                                                                                                                                                                             
 ......  Nitrogen tetroxide, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dinitrogen tetroxide,                                                                                                                                                                 
          liquefied.                                                                                                                                                                            
 ......  Nitrogen trichloride.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
D......  Nitrogen trifluoride,              2.2  UN2451                   2.2, 5.1..                     None..........  302.......  None......    Forbidden        25 kg  D                  40
          compressed.                                                                                                                                                                           
I......  Nitrogen trifluoride,              2.3  UN2451                   2.3, 5.1..                     None..........  302.......  None......    Forbidden        25 kg  D                  40
          compressed.                                                                                                                                                                           
 ......  Nitrogen triiodide.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitrogen triiodide           Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          monoamine.                                                                                                                                                                            
 ......  Nitrogen trioxide........          2.3  UN2421                   2.3, 5.1,                   1  None..........  336.......  245.......    Forbidden    Forbidden  D             40, 89,
                                                                           8.                                                                                                                 90
 ......  Nitroglycerin,                    1.1D  UN0143               II   1.1D, 6.1                125  None..........  62........  None......    Forbidden    Forbidden  B             1E, 4E,
          desensitized with not                                                                                                                                                              21E
          less than 40 percent non-                                                                                                                                                             
          volatile water insoluble                                                                                                                                                              
          phlegmatizer, by mass.                                                                                                                                                                
 ......  Nitroglycerin, liquid,       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          not desensitized.                                                                                                                                                                     
 ......  Nitroglycerin mixture              4.1  UN3319               ..  4.1.......                118  None..........  None......  None......    Forbidden       0.5 kg  E             .......
          with more than 2 percent                                                                                                                                                              
          but not more than 10                                                                                                                                                                  
          percent nitroglycerin,                                                                                                                                                                
          by mass, desensitized.                                                                                                                                                                
 ......  Nitroglycerin, solution              3  UN3064               II  3.........                 N8  None..........  202.......  None......    Forbidden          5 L  E                    
          in alcohol, with more                                                                                                                                                                 
          than 1 percent but not                                                                                                                                                                
          more than 5 percent                                                                                                                                                                   
          nitroglycerin.                                                                                                                                                                        
 ......  Nitroglycerin, solution           1.1D  UN0144               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B             1E, 5E,
          in alcohol, with more                                                                                                                                                              21E
          than 1 percent but not                                                                                                                                                                
          more than 10 percent                                                                                                                                                                  
          nitrogylcerin.                                                                                                                                                                        
 ......  Nitroglycerin solution in            3  UN1204               II  3.........           N34, T25  None..........  202.......  None......          5 L         60 L  B                    
          alcohol with not more                                                                                                                                                                 
          than 1 percent                                                                                                                                                                        
          nitroglycerin.                                                                                                                                                                        
 ......  Nitroguanidine nitrate...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitroguanidine or                 1.1D  UN0282               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Picrite, dry or wetted                                                                                                                                                                
          with less than 20                                                                                                                                                                     
          percent water, by mass.                                                                                                                                                               
 ......  Nitroguanidine, wetted or          4.1  UN1336                I  4.1.......  23, A8, A19, A20,  None..........  211.......  None......         1 kg        15 kg  E                  28
          Picrite, wetted with not                                                                  N41                                                                                         
          less than 20 percent                                                                                                                                                                  
          water, by mass.                                                                                                                                                                       
 ......  1-Nitrohydantoin.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         

[[Page 194]]

                                                                                                                                                                                                
 ......  Nitrohydrochloric acid...            8  UN1798                I  8.........      A3, B10, N41,  None..........  201.......  243.......    Forbidden        2.5 L  D             40, 66,
                                                                                               T18, T27                                                                                  74, 89,
                                                                                                                                                                                              90
 ......  Nitromannite (dry).......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitromannite, wetted, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Mannitol hexanitrate,                                                                                                                                                                 
          etc.                                                                                                                                                                                  
 ......  Nitromethane.............            3  UN1261               II  3.........                T25  150...........  202.......  None......    Forbidden         60 L  A                    
 ......  Nitromuriatic acid, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitrohydrochloric acid.                                                                                                                                                               
 ......  Nitronaphthalene.........          4.1  UN2538               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Nitrophenols (o-; m-; p-           6.1  UN1663               II  6.1.......            T8, T38  153...........  213.......  240.......       100 kg       200 kg  A                    
          ;).                                                          I                                                                                                                        
 ......  m-Nitrophenyldinitro         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methane.                                                                                                                                                                              
 ......  Nitropropanes............            3  UN2608               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  p-Nitrosodimethylaniline.          4.2  UN1369               II  4.2.......    A19, A20, B101,  None..........  212.......  241.......        15 kg        50 kg  D                  34
                                                                                                    N34                                                                                         
 ......  Nitrostarch, dry or               1.1D  UN0146               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 20                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  Nitrostarch, wetted with           4.1  UN1337                I  4.1.......  23, A8, A19, A20,  None..........  211.......  None......         1 kg        15 kg  D                  28
          not less than 20 percent                                                                  N41                                                                                         
          water, by mass.                                                                                                                                                                       
 ......  Nitrosugars (dry)........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Nitrosyl chloride........          2.3  UN1069                   2.3, 8....             3, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
 ......  Nitrosylsulfuric acid....            8  UN2308               II  8.........    A3, A6, A7, B2,  154...........  202.......  242.......          1 L         30 L  D             40, 66,
                                                                                           N34, T9, T27                                                                                  74, 89,
                                                                                                                                                                                              90
 ......  Nitrotoluenes, liquid o-;          6.1  UN1664               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
          m-; p-;.                                                                                                                                                                              
 ......  Nitrotoluenes, solid m-,           6.1  UN1664               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                    
          or p-.                                                                                                                                                                                
 ......  Nitrotoluidines (mono)...          6.1  UN2660               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Nitrotriazolone or NTO...         1.1D  UN0490               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Nitrous oxide and carbon   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dioxide mixtures, see                                                                                                                                                                 
          Carbon dioxide and                                                                                                                                                                    
          nitrous oxide mixtures.                                                                                                                                                               
 ......  Nitrous oxide............          2.2  UN1070                   2.2, 5.1..                     306...........  304.......  314, 315..        75 kg       150 kg  A                  40
 ......  Nitrous oxide,                     2.2  UN2201                   2.2.......                 B6  None..........  304.......  314, 315..        75 kg       150 kg  B                  40
          refrigerated liquid.                                                                                                                                                                  
 ......  Nitroxylenes, (o-; m-; p-          6.1  UN1665               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
          ).                                                                                                                                                                                    
 ......  Nitroxylol, see            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitroxylenes.                                                                                                                                                                         
 ......  Nonanes..................            3  UN1920               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 195]]

                                                                                                                                                                                                
 ......  Nonflammable gas, n.o.s.,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Compressed or                                                                                                                                                                     
          Liquefied gases, etc.                                                                                                                                                                 
          (UN 1955, UN 1956).                                                                                                                                                                   
 ......  Nonliquefied gases, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Compressed gases, etc.                                                                                                                                                                
 ......  Nonliquefied hydrocarbon   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          gas, see Hydrocarbon                                                                                                                                                                  
          gases, compressed, n.o.s.                                                                                                                                                             
 ......  Nonyltrichlorosilane.....            8  UN1799               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                T8, T26                                                                                         
 ......  2,5-Norbornadiene or                 3  UN2251               II  3.........                     150...........  202.......  242.......          5 L         60 L  D                    
          Bicyclo[2,2,1]hepta-2,5-                                                                                                                                                              
          diene, inhibited.                                                                                                                                                                     
 ......  Nordhausen acid, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sulfuric acid, fuming                                                                                                                                                                 
          etc.                                                                                                                                                                                  
 ......  Octadecyltrichlorosilane.            8  UN1800               II  8.........    A7, B2, B6 N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                     T8                                                                                         
 ......  Octadiene................            3  UN2309               II  3.........             B1, T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  1,7-Octadine-3,5-diyne-      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          1,8-dimethoxy-9-                                                                                                                                                                      
          octadecynoic acid.                                                                                                                                                                    
 ......  Octafluorobut-2-ene or             2.2  UN2422                   2.2.......                     None..........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 1318.                                                                                                                                                               
 ......  Octafluorocyclobutane, or          2.2  UN1976                   2.2.......                     None..........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R C318.                                                                                                                                                               
 ......  Octafluoropropaneor                2.2  UN2424                   2.2.......                     None..........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 218.                                                                                                                                                                
 ......  Octanes..................            3  UN1262               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Octogen, see               ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cyclotetramethylene                                                                                                                                                                   
          tetranitramine, etc.                                                                                                                                                                  
 ......  Octolite or Octol, dry or         1.1D  UN0266               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 15                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  Octonal..................         1.1D  UN0496                    1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Octyl aldehydes,                     3  UN1191               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          flammable.                                                   I                                                                                                                        
 ......  Octyltrichlorosilane.....            8  UN1801               II  8.........   A7, B2, B6, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                                T8, T26                                                                                         
 ......  Oil gas, compressed......          2.3  UN1071                   2.3, 2.1..                  6  None..........  304.......  314, 315..    Forbidden        25 kg  D                  40
 ......  Oleum, see Sulfuric acid,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          fuming.                                                                                                                                                                               
 ......  Organic peroxide type A,     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquid or solid.                                                                                                                                                                      
 ......  Organic peroxide type B,           5.2  UN3101               II  5.2, 1....                 53  152...........  225.......  None......    Forbidden    Forbidden  D              12, 40
          liquid.                                                                                                                                                                               
 ......  Organic peroxide type B,           5.2  UN3111               II  5.2, 1....                 53  None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          liquid, temperature                                                                                                                                                                   
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type B,           5.2  UN3102               II  5.2, 1....                 53  152...........  225.......  None......    Forbidden    Forbidden  D              12, 40
          solid.                                                                                                                                                                                
 ......  Organic peroxide type B,           5.2  UN3112               II  5.2, 1....                 53  None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          solid, temperature                                                                                                                                                                    
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type C,           5.2  UN3103               II  5.1.......                     152...........  225.......  None......          5 L         10 L  D              12, 40
          liquid.                                                                                                                                                                               
 ......  Organic peroxide type C,           5.2  UN3113               II  5.2.......                     None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          liquid, temperature                                                                                                                                                                   
          controlled.                                                                                                                                                                           

[[Page 196]]

                                                                                                                                                                                                
 ......  Organic peroxide type C,           5.2  UN3104               II  5.2.......                     152...........  225.......  None......         5 kg        10 kg  D              12, 40
          solid.                                                                                                                                                                                
 ......  Organic peroxide type C,           5.2  UN3114               II  5.2.......                     None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          solid, temperature                                                                                                                                                                    
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type D,           5.2  UN3105               II  5.2.......                     152...........  225.......  None......          5 L         10 L  D              12, 40
          liquid.                                                                                                                                                                               
 ......  Organic peroxide type D,           5.2  UN3115               II  5.2.......                     None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          liquid, temperature                                                                                                                                                                   
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type D,           5.2  UN3106               II  5.2.......                     152...........  225.......  None......         5 kg        10 kg  D              12, 40
          solid.                                                                                                                                                                                
 ......  Organic peroxide type D,           5.2  UN3116               II  5.2.......                     None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          solid, temperature                                                                                                                                                                    
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type E,           5.2  UN3107               II  5.2.......                     152...........  225.......  None......         10 L         25 L  D              12, 40
          liquid.                                                                                                                                                                               
 ......  Organic peroxide type E,           5.2  UN3117               II  5.2.......                     None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          liquid, temperature                                                                                                                                                                   
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type E,           5.2  UN3108               II  5.2.......                     152...........  225.......  None......        10 kg        25 kg  D              12, 40
          solid.                                                                                                                                                                                
 ......  Organic peroxide type E,           5.2  UN3118               II  5.2.......                     None..........  225.......  None......    Forbidden    Forbidden  D               2, 40
          solid, temperature                                                                                                                                                                    
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type F,           5.2  UN3109               II  5.2.......                     152...........  225.......  225.......         10 L         25 L  D              12, 40
          liquid.                                                                                                                                                                               
 ......  Organic peroxide type F,           5.2  UN3119               II  5.2.......                     None..........  225.......  225.......    Forbidden    Forbidden  D               2, 40
          liquid, temperature                                                                                                                                                                   
          controlled.                                                                                                                                                                           
 ......  Organic peroxide type F,           5.2  UN3110               II  5.2.......                T42  152...........  225.......  225.......        10 kg        25 kg  D              12, 40
          solid.                                                                                                                                                                                
 ......  Organic peroxide type F,           5.2  UN3120               II  5.2.......                     None..........  225.......  225.......    Forbidden    Forbidden  D               2, 40
          solid, temperature                                                                                                                                                                    
          controlled.                                                                                                                                                                           
         .........................  ...........  ...................  II  6.1.......            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
D......  Organic phosphate, mixed           2.3  NA1955                   2.3.......                  3  None..........  334.......  None......    Forbidden    Forbidden  D                  40
          with compressed gas or                                                                                                                                                                
          Organic phosphate                                                                                                                                                                     
          compound, mixed with                                                                                                                                                                  
          compressed gas or                                                                                                                                                                     
          Organic phosphorus                                                                                                                                                                    
          compound, mixed with                                                                                                                                                                  
          compressed gas.                                                                                                                                                                       
 ......  Organic pigments, self-            4.2  UN3313               II  4.2.......               None  None..........  212.......  241.......        15 kg        50 kg  C             .......
          heating.                                                                                                                                                                              
         .........................  ...........  ...................  II  4.2.......               B101  None..........  213.......  241.......        25 kg       100 kg  C             .......
                                                                       I                                                                                                                        
 ......  Organoarsenic compound,            6.1  UN3280                I  6.1.......                  5  None..........  211.......  242.......         5 kg        50 kg  B                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  B                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Organochlorine pesticides            3  UN2762                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Organochlorine                     6.1  UN2996                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic.                                                                                                                                                                                

[[Page 197]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Organochlorine                     6.1  UN2995                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic, flammable,                                                                                                                                                                     
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Organochlorine                     6.1  UN2761                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          pesticides, solid toxic.                                                                                                                                                              
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Organometallic compound            4.3  UN3207                I  4.3, 3....                     None..........  201.......  244.......    Forbidden          1 L  E                  40
          or Compound solution or                                                                                                                                                               
          Compound dispersion,                                                                                                                                                                  
          water-reactive,                                                                                                                                                                       
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.3, 3....                     None..........  202.......  243.......          1 L          5 L  E                  40
         .........................  ...........  ...................  II  4.3, 3....         B101, B106  None..........  203.......  242.......          5 L         60 L  E                  40
                                                                       I                                                                                                                        
 ......  Organometallic compound,           6.1  UN3282                I  6.1.......               B106  None..........  211.......  242.......         5 kg        50 kg  B                    
          toxic n.o.s.                                                                                                                                                                          
         .........................  ...........  ...................  II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  B                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Organophosphorus                   6.1  UN3279                I  6.1, 3....                  5  None..........  201.......  243.......          1 L         30 L  B                  40
          compound, toxic,                                                                                                                                                                      
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
 ......  Organophosphorus                   6.1  UN3278                I  6.1.......                  5  None..........  201.......  243.......          1 L         30 L  B                    
          compound, toxic n.o.s.                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Organophosphorus                     3  UN2784                I  3, 6.1....                T42  None..........  201.......  243.......    Forbidden         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          flammable, toxic, flash                                                                                                                                                               
          point less than 23                                                                                                                                                                    
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....                T18  None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Organophosphorus                   6.1  UN3018                I  6.1.......           N76, T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......           N76, T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......           N76, T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Organophosphorus                   6.1  UN3017                I  6.1, 3....           N76, T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic, flammable,                                                                                                                                                                     
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....           N76, T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....       B1, N76, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Organophosphorus                   6.1  UN2783                I  6.1.......                N77  None..........  211.......  242.......         5 kg        50 kg  A                  40
          pesticides, solid, toxic.                                                                                                                                                             
         .........................  ...........  ...................  II  6.1.......                N77  None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                N77  153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Organotin compounds,               6.1  UN2788                I  6.1.......  A3, N33, N34, T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, n.o.s.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......  A3, N33, N34, T14  None..........  202.......  243.......          5 L         60 L  A                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Organotin compounds,               6.1  UN3146                I  6.1.......                 A5  None..........  211.......  242.......         5 kg        50 kg  B                  40
          solid, n.o.s.                                                                                                                                                                         

[[Page 198]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Organotin pesticides,                3  UN2787                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Organotin pesticides,              6.1  UN3020                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Organotin pesticides,              6.1  UN3019                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic,                                                                                                                                                                        
          flammable, flashpoint                                                                                                                                                                 
          not less than 23 degrees                                                                                                                                                              
          C.                                                                                                                                                                                    
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Organotin pesticides,              6.1  UN2786                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Orthonitroaniline, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitroanilines etc.                                                                                                                                                                    
 ......  Osmium tetroxide.........          6.1  UN2471                I  6.1.......     A8, B100, N33,  None..........  211.......  242.......         5 kg        50 kg  B                  40
                                                                                                    N34                                                                                         
AD.....  Other regulated                      9  NA3082               II   9........                     155...........  203.......  241.......     No limit     No limit  A                    
          substances, liquid,                                          I                                                                                                                        
          n.o.s.                                                                                                                                                                                
AD.....  Other regulated                      9  NA3077               II   9........                B54  155...........  213.......  240.......     No limit     No limit  A                    
          substances, solid, n.o.s.                                    I                                                                                                                        
 ......  Oxidizing liquid,                  5.1  UN3098                I  5.1, 8....                     None..........  201.......  244.......    Forbidden        2.5 L  D             34, 56,
          corrosive, n.o.s.                                                                                                                                                              58, 69,
                                                                                                                                                                                             106
         .........................  ...........  ...................  II  5.1, 8....                     None..........  202.......  243.......          1 L          5 L  B             34, 56,
                                                                                                                                                                                         58, 69,
                                                                                                                                                                                             106
         .........................  ...........  ...................  II  5.1, 8....                     152...........  203.......  242.......        2.5 L         30 L  B             34, 56,
                                                                       I                                                                                                                 58, 69,
                                                                                                                                                                                             106
 ......  Oxidizing liquid, n.o.s..          5.1  UN3139                I  5.1.......            127, A2  None..........  201.......  243.......    Forbidden        2.5 L  D             56, 58,
                                                                                                                                                                                         69, 106

[[Page 199]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  5.1.......            127, A2  152...........  202.......  242.......          1 L          5 L  B             56, 58,
                                                                                                                                                                                         69, 106
         .........................  ...........  ...................  II  5.1.......            127, A2  152...........  203.......  241.......        2.5 L         30 L  B             56, 58,
                                                                       I                                                                                                                 69, 106
 ......  Oxidizing liquid, toxic,           5.1  UN3099                I  5.1, 6.1..                     None..........  201.......  244.......    Forbidden        2.5 L  D             56, 58,
          n.o.s.                                                                                                                                                                         95, 106
         .........................  ...........  ...................  II  5.1, 6.1..                     None..........  202.......  243.......          1 L          5 L  B             56, 58,
                                                                                                                                                                                         95, 106
         .........................  ...........  ...................  II  5.1, 6.1..                     152...........  203.......  242.......        2.5 L         30 L  B             56, 58,
                                                                       I                                                                                                                 95, 106
 ......  Oxidizing solid,                   5.1  UN3085                I  5.1, 8....                     None..........  211.......  242.......         1 kg        15 kg  D             13, 34,
          corrosive, n.o.s.                                                                                                                                                              56, 58,
                                                                                                                                                                                         69, 106
         .........................  ...........  ...................  II  5.1, 8....                     None..........  212.......  242.......         5 kg        25 kg  B             13, 34,
                                                                                                                                                                                         56, 58,
                                                                                                                                                                                         69, 106
         .........................  ...........  ...................  II  5.1, 8....                     152...........  213.......  240.......        25 kg       100 kg  B             13, 34,
                                                                       I                                                                                                                 56, 58,
                                                                                                                                                                                         69, 106
 ......  Oxidizing solid,                   5.1  UN3137                I  5.1, 4.1..                     None..........  214.......  214.......    Forbidden    Forbidden  ............         
          flammable, n.o.s.                                                                                                                                                                     
 ......  Oxidizing solid, n.o.s...          5.1  UN1479                I  5.1.......                     None..........  211.......  242.......         1 kg        15 kg  D             56, 58,
                                                                                                                                                                                         69, 106
         .........................  ...........  ...................  II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  B             56, 58,
                                                                                                                                                                                         69, 106
         .........................  ...........  ...................  II  5.1.......                     152...........  213.......  240.......        25 kg       100 kg  B             56, 58,
                                                                       I                                                                                                                 69, 106
 ......  Oxidizing solid, self-             5.1  UN3100               II  5.1, 4.2..                     None..........  214.......  214.......    Forbidden    Forbidden  ............         
          heating, n.o.s.                                                                                                                                                                       
 ......  Oxidizing solid, toxic,            5.1  UN3087                I  5.1, 6.1..                     None..........  211.......  242.......         1 kg        15 kg  D             56, 58,
          n.o.s.                                                                                                                                                                         69, 95,
                                                                                                                                                                                             106
         .........................  ...........  ...................  II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  B             56, 58,
                                                                                                                                                                                         69, 95,
                                                                                                                                                                                             106
         .........................  ...........  ...................  II  5.1, 6.1..                     152...........  213.......  240.......        25 kg       100 kg  B             56, 58,
                                                                       I                                                                                                                 69, 95,
                                                                                                                                                                                             106

[[Page 200]]

                                                                                                                                                                                                
 ......  Oxidizing solid, water-            5.1  UN3121                   5.1, 4.3..                     None..........  214.......  214.......    Forbidden    Forbidden  ............         
          reactive, n.o.s.                                                                                                                                                                      
 ......  Oxygen and carbon dioxide  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          mixtures, see Carbon                                                                                                                                                                  
          dioxide and oxygen                                                                                                                                                                    
          mixtures.                                                                                                                                                                             
 ......  Oxygen, compressed.......          2.2  UN1072                   2.2, 5.1..                     306...........  302.......  314, 315..        75 kg       150 kg  A                    
 ......  Oxygen difluoride,                 2.3  UN2190                   2.3, 5.1,                   1  None..........  304.......  None......    Forbidden    Forbidden  D             13, 40,
          compressed.                                                      8.                                                                                                             89, 90
  .....  Oxygen generator,                  5.1  UN3356               II  5.1.......            60, A51  None..........  212.......  None......    Forbidden        25 kg  D             56, 58,
          chemical.                                                                                                                                                                      69, 106
 ......  Oxygen, mixtures with      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          rare gases, see Rare                                                                                                                                                                  
          gases and oxygen                                                                                                                                                                      
          mixtures.                                                                                                                                                                             
 ......  Oxygen, refrigerated               2.2  UN1073                   2.2, 5.1..                     320...........  316.......  318.......    Forbidden    Forbidden  D                    
          liquid (cryogenic                                                                                                                                                                     
          liquid).                                                                                                                                                                              
 ......  Paint including paint,               3  UN1263                I  3.........            T8, T31  150...........  201.......  243.......          1 L         30 L  E             .......
          lacquer, enamel, stain,                                                                                                                                                               
          shellac solutions,                                                                                                                                                                    
          varnish, polish, liquid                                                                                                                                                               
          filler, and liquid                                                                                                                                                                    
          lacquer base.                                                                                                                                                                         
         .........................  ...........  ...................  II  3.........       B52, T7, T30  150...........  173.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........   B1, B52, T7, T30  150...........  173.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Paint or Paint related               8  UN3066               II  8.........       B2, N71, T14  154...........  202.......  242.......          1 L         30 L  A                    
          material.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........       B52, N71, T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Paint related material               3  UN1263                I  3.........            T8, T31  150...........  201.......  243.......          1 L         30 L  E             .......
          including paint                                                                                                                                                                       
          thinning, drying,                                                                                                                                                                     
          removing, or reducing                                                                                                                                                                 
          compound.                                                                                                                                                                             
         .........................  ...........  ...................  II  3.........       B52, T7, T30  150...........  173.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........   B1, B52, T7, T30  150...........  173.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Paper, unsaturated oil             4.2  UN1379               II  4.2.......         B101, B106  None..........  213.......  241.......    Forbidden    Forbidden  A                    
          treated incompletely                                         I                                                                                                                        
          dried (including carbon                                                                                                                                                               
          paper).                                                                                                                                                                               
 ......  Paraformaldehyde.........          4.1  UN2213               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Paraldehyde..............            3  UN1264               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Paranitroaniline, solid,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Nitroanilines etc.                                                                                                                                                                
D......  Parathion................          6.1  NA2783                I  6.1.......                T42  None..........  201.......  243.......    Forbidden          1 L  A                  40

[[Page 201]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......    Forbidden          5 L  A                  40
D......  Parathion and compressed           2.3  NA1967                   2.3.......                  3  None..........  334.......  245.......    Forbidden    Forbidden  E                  40
          gas mixture.                                                                                                                                                                          
 ......  Paris green, solid, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Copper acetoarsenite.                                                                                                                                                                 
A,W....  PCB, see Polychlorinated   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          biphenyls.                                                                                                                                                                            
+......  Pentaborane..............          4.2  UN1380                I  4.2, 6.1..                  1  None..........  205.......  245.......    Forbidden    Forbidden  D                    
 ......  Pentachloroethane........          6.1  UN1669               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Pentachlorophenol........          6.1  UN3155               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Pentaerythrite               Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetranitrate (dry).                                                                                                                                                                   
 ......  Pentaerythrite                    1.1D  UN0411               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          tetranitrate or                                                                                                                                                                       
          Pentaerythritol                                                                                                                                                                       
          tetranitrate or PETN,                                                                                                                                                                 
          with not less than 7                                                                                                                                                                  
          percent wax by mass.                                                                                                                                                                  
 ......  Pentaerythrite                    1.1D  UN0150               II   1.1D.....                121  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          tetranitrate, wetted or                                                                                                                                                               
          Pentaerythritol                                                                                                                                                                       
          tetranitrate, wetted, or                                                                                                                                                              
          PETN, wetted with not                                                                                                                                                                 
          less than 25 percent                                                                                                                                                                  
          water, by mass, or                                                                                                                                                                    
          Pentaerythrite                                                                                                                                                                        
          tetranitrate, or                                                                                                                                                                      
          Pentaerythritol                                                                                                                                                                       
          tetranitrate or PETN,                                                                                                                                                                 
          desensitized with not                                                                                                                                                                 
          less than 15 percent                                                                                                                                                                  
          phlegmatizer by mass.                                                                                                                                                                 
 ......  Pentaerythritol            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetranitrate, see                                                                                                                                                                     
          Pentaerythrite                                                                                                                                                                        
          tetranitrate, etc.                                                                                                                                                                    
 ......  Pentafluoroethane or               2.2  UN3220                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 125.                                                                                                                                                                
 ......  Pentamethylheptane.......            3  UN2286               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Pentane-2,4-dione........            3  UN2310               II  3, 6.1....             B1, T1  150...........  203.......  242.......         60 L        220 L  A             .......
                                                                       I                                                                                                                        
 ......  Pentanes.................            3  UN1265                I  3.........                T20  150...........  201.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........                T20  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Pentanitroaniline (dry)..    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1-Pentene (n-amylene)....            3  UN1108                I  3.........                T14  150...........  201.......  243.......          1 L         30 1  E             .......
 ......  1-Pentol.................            8  UN2705               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  B                  38
 ......  Pentolite, dry or wetted          1.1D  UN0151               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          with less than 15                                                                                                                                                                     
          percent water, by mass.                                                                                                                                                               
 ......  Perchlorates, inorganic,           5.1  UN3211               II  5.1.......                 T8  152...........  202.......  242.......          1 L          5 L  B             46, 56,
          aqueous solution, n.o.s.                                                                                                                                                            58
         .........................  ...........  ...................  II  5.1.......                 T8  152...........  203.......  241.......        2.5 L         30 L  B             56, 58,
                                                                       I                                                                                                                 69, 106
 ......  Perchlorates, inorganic,           5.1  UN1481               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A              46, 56
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  5.1.......                     152...........  213.......  240.......        25 kg       100 kg  A              46, 56
                                                                       I                                                                                                                        
 ......  Perchloric acid, with        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          more than 72 percent                                                                                                                                                                  
          acid by mass.                                                                                                                                                                         
 ......  Perchloric acid with more          5.1  UN1873                I  5.1, 8....   A2, A3, N41, T9,  None..........  201.......  243.......    Forbidden        2.5 L  D                  66
          than 50 percent but not                                                                   T27                                                                                         
          more than 72 percent                                                                                                                                                                  
          acid, by mass.                                                                                                                                                                        
 ......  Perchloric acid with not             8  UN1802               II  8, 5.1....            N41, T9  None..........  202.......  243.......    Forbidden         30 L  C                  66
          more than 50 percent                                                                                                                                                                  
          acid by mass.                                                                                                                                                                         

[[Page 202]]

                                                                                                                                                                                                
 ......  Perchloroethylene, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tetrachloroethylene.                                                                                                                                                                  
 ......  Perchloromethyl mercaptan          6.1  UN1670                I  6.1.......     2, A3, A7, B9,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B14, B32, B74,                                                                                         
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Perchloryl fluoride......          2.3  UN3083                   2.3, 5.1..         2, B9, B14  None..........  302.......  314, 315..    Forbidden    Forbidden  D                  40
 ......  Percussion caps, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Primers, cap type.                                                                                                                                                                    
 ......  Perfluoro-2-butene, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Octafluorobut-2-ene.                                                                                                                                                                  
 ......  Perfluoro(ethyl vinyl              2.1  UN3154                   2.1.......                     306...........  302, 304,   314, 315..    Forbidden       150 kg  E                  40
          ether).                                                                                                         305.                                                                  
 ......  Perfluoro(methyl vinyl             2.1  UN3153                   2.1.......                     306...........  302, 304,   314, 315..    Forbidden       150 kg  E                  40
          ether).                                                                                                         305.                                                                  
 ......  Perfumery products with              3  UN1266               II  3.........            T7, T30  150...........  202.......  242.......         15 L         60 L  B                    
          flammable solvents.                                                                                                                                                                   
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Permanganates, inorganic,          5.1  UN3214               II  5.1.......             26, T8  152...........  202.......  242.......          1 L          5 L  D             56, 58,
          aqueous solution, n.o.s.                                                                                                                                                           69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
 ......  Permanganates, inorganic,          5.1  UN1482               II  5.1.......            26, A30  152...........  212.......  242.......         5 kg        25 kg  D             56, 58,
          n.o.s.                                                                                                                                                                             69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
         .........................  ...........  ...................  II  5.1.......            26, A30  152...........  213.......  240.......        25 kg       100 kg  D             56, 58,
                                                                       I                                                                                                                     69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
 ......  Peroxides, inorganic,              5.1  UN1483               II  5.1.......       A7, A20, N34  None..........  212.......  242.......         5 kg        25 kg  A             13, 75,
          n.o.s.                                                                                                                                                                             106
         .........................  ...........  ...................  II  5.1.......       A7, A20, N34  152...........  213.......  240.......        25 kg       100 kg  A             13, 75,
                                                                       I                                                                                                                     106

[[Page 203]]

                                                                                                                                                                                                
 ......  Peroxyacetic acid, with      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          more than 43 percent and                                                                                                                                                              
          with more than 6 percent                                                                                                                                                              
          hydrogen peroxide.                                                                                                                                                                    
 ......  Persulfates, inorganic,            5.1  UN3216               II  5.1.......                 T2  152...........  203.......  241.......        2.5 L         30 L  A                    
          aqueous solution, n.o.s.                                     I                                                                                                                        
 ......  Persulfates, inorganic,            5.1  UN3215               II  5.1.......                     152...........  213.......  240.......        25 kg       100 kg  A                    
          n.o.s.                                                       I                                                                                                                        
 ......  Pesticides, liquid,                  3  UN3021                I  3, 6.1....                 B5  None..........  201.......  243.......    Forbidden         30 L  B                    
          flammable, toxic,                                                                                                                                                                     
          flashpoint less than 23                                                                                                                                                               
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                    
 ......  Pesticides, liquid,                6.1  UN2903                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          toxic, flammable, n.o.s.                                                                                                                                                              
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Pesticides, liquid,                6.1  UN2902                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Pesticides, solid, toxic,          6.1  UN2588                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  PETN, see Pentaerythrite   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetranitrate.                                                                                                                                                                         
 ......  PETN/TNT, see Pentolite,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          etc.                                                                                                                                                                                  
 ......  Petrol, see Gasoline.....  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Petroleum crude oil......            3  UN1267                I  3.........            T8, T31  None..........  201.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Petroleum distillates,               3  UN1268                I  3.........            T8, T31  150...........  201.......  243.......          1 L         30 L  E                    
          n.o.s. or Petroleum                                                                                                                                                                   
          products, n.o.s.                                                                                                                                                                      
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Petroleum gases,                   2.1  UN1075                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          liquefied or Liquefied                                                                                                                                                                
          petroleum gas.                                                                                                                                                                        
D......  Petroleum oil............            3  NA1270                I  3.........            T8, T31  None..........  201.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Phenacyl bromide.........          6.1  UN2645               II  6.1.......               B106  None..........  212.......  242.......        25 kg       100 kg  B                  40
 ......  Phenetidines.............          6.1  UN2311               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Phenol, molten...........          6.1  UN2312               II  6.1.......      B14, B100, T8  None..........  202.......  243.......    Forbidden    Forbidden  B                  40
+......  Phenol, solid............          6.1  UN1671               II  6.1.......           N78, T14  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Phenol solutions.........          6.1  UN2821               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Phenolsulfonic acid,                 8  UN1803               II  8.........        B2, N41, T8  154...........  202.......  242.......          1 L         30 L  C                  14
          liquid.                                                                                                                                                                               
 ......  Phenoxy pesticides,                  3  UN2766                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Phenoxy pesticides,                6.1  UN3000                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        

[[Page 204]]

                                                                                                                                                                                                
 ......  Phenoxy pesticides,                6.1  UN2999                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic,                                                                                                                                                                        
          flammable, flashpoint                                                                                                                                                                 
          not less than 23 degrees                                                                                                                                                              
          C.                                                                                                                                                                                    
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Phenoxy pesticides,                6.1  UN2765                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Phenyl chloroformate.....          6.1  UN2746               II  6.1, 8....                T12  None..........  202.......  243.......          1 L         30 L  A             12, 13,
                                                                                                                                                                                         21, 25,
                                                                                                                                                                                         40, 100
 ......  Phenyl isocyanate........          6.1  UN2487                I  6.1,3.....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
                                                                                         B74, B77, N33,                                                                                       95
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Phenyl mercaptan.........          6.1  UN2337                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  B              26, 40
                                                                                         B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Phenyl phosphorus                    8  UN2798               II  8.........   B2, B15, T8, T26  154...........  202.......  242.......    Forbidden         30 L  B                  40
          dichloride.                                                                                                                                                                           
 ......  Phenyl phosphorus                    8  UN2799               II  8.........   B2, B15, T8, T26  154...........  202.......  242.......    Forbidden         30 L  B                  40
          thiodichloride.                                                                                                                                                                       
 ......  Phenyl urea pesticides,              3  UN2768                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          liquid, flammable,                                                                                                                                                                    
          toxic, flash point less                                                                                                                                                               
          than 23 degrees C.                                                                                                                                                                    
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Phenyl urea pesticides,            6.1  UN3002                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Phenyl urea pesticides,            6.1  UN3001                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic,                                                                                                                                                                        
          flammable, flash point                                                                                                                                                                
          not less than 23 degrees                                                                                                                                                              
          C.                                                                                                                                                                                    
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Phenyl urea pesticides,            6.1  UN2767                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Phenylacetonitrile,                6.1  UN2470               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A                  26
          liquid.                                                      I                                                                                                                        
 ......  Phenylacetyl chloride....            8  UN2577               II  8.........        B2, T8, T26  154...........  202.......  242.......          1 L         30 L  C                  40

[[Page 205]]

                                                                                                                                                                                                
 ......  Phenylcarbylamine                  6.1  UN1672                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
          chloride.                                                                      B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  m-Phenylene                  Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          diaminediperchlorate                                                                                                                                                                  
          (dry).                                                                                                                                                                                
 ......  Phenylenediamines (o-; m-          6.1  UN1673               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
          ; p-;).                                                      I                                                                                                                        
 ......  Phenylhydrazine..........          6.1  UN2572               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Phenylmercuric acetate...          6.1  UN1674               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Phenylmercuric compounds,          6.1  UN2026                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Phenylmercuric hydroxide.          6.1  UN1894               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Phenylmercuric nitrate...          6.1  UN1895               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Phenyltrichlorosilane....            8  UN1804               II  8.........    A7, B6, N34, T8  None..........  202.......  242.......    Forbidden         30 L  C                  40
 ......  Phosgene.................          2.3  UN1076                   2.3, 8....         1, B7, B46  None..........  192.......  314.......    Forbidden    Forbidden  D                  40
 ......  9-Phosphabicyclononanes            4.2  UN2940               II  4.2.......                A19  None..........  212.......  241.......        15 kg        50 kg  A                    
          or Cyclooctadiene                                                                                                                                                                     
          phosphines.                                                                                                                                                                           
 ......  Phosphine................          2.3  UN2199                   2.3, 2.1..                  1  None..........  192.......  245.......    Forbidden    Forbidden  D                  40
 ......  Phosphoric acid..........            8  UN1805               II  8.........        A7, N34, T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Phosphoric acid            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          triethyleneimine, see                                                                                                                                                                 
          Tris-(1-                                                                                                                                                                              
          aziridiyl)phosphine                                                                                                                                                                   
          oxide, solution.                                                                                                                                                                      
 ......  Phosphoric anhydride, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Phosphorus pentoxide.                                                                                                                                                                 
 ......  Phosphorous acid.........            8  UN2834               II  8.........                 T7  154...........  213.......  240.......        25 kg       100 kg  A                  48
                                                                       I                                                                                                                        
 ......  Phosphorus, amorphous....          4.1  UN1338               II  4.1.......   A1, A19, B1, B9,  None..........  213.......  243.......        25 kg       100 kg  A                  74
                                                                       I                            B26                                                                                         
 ......  Phosphorus bromide, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Phosphorus tribromide.                                                                                                                                                                
 ......  Phosphorus chloride, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Phosphorus trichloride.                                                                                                                                                               
 ......  Phosphorus heptasulfide,           4.1  UN1339               II  4.1.......           A20, N34  None..........  212.......  240.......        15 kg        50 kg  B                  74
          free from yellow or                                                                                                                                                                   
          white phosphorus.                                                                                                                                                                     
 ......  Phosphorus oxybromide....            8  UN1939               II  8.........     B8, B106, N41,  None..........  212.......  240.......    Forbidden        50 kg  C              12, 40
                                                                                                    N43                                                                                         
 ......  Phosphorus oxybromide,               8  UN2576               II  8.........  B2, B8, N41, N43,  None..........  202.......  242.......    Forbidden    Forbidden  C                  40
          molten.                                                                               T8, T27                                                                                         
+......  Phosphorus oxychloride...            8  UN1810               II  8, 6.1....    2, A7, B9, B14,  None..........  227.......  244.......    Forbidden         30 L  C                  40
                                                                                         B32, B74, B77,                                                                                         
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Phosphorus pentabromide..            8  UN2691               II  8.........      A7, B106, N34  154...........  212.......  240.......    Forbidden        50 kg  B              12, 40
 ......  Phosphorus pentachloride.            8  UN1806               II  8.........      A7, B106, N34  None..........  212.......  240.......    Forbidden        50 kg  C                  40
 ......  Phosphorus pentafluoride,          2.3  UN2198                   2.3, 8....         2, B9, B14  None..........  302, 304..  314, 315..    Forbidden    Forbidden  D                  40
          compressed.                                                                                                                                                                           
 ......  Phosphorus pentasulfide,           4.3  UN1340               II  4.3, 4.1..    A20, B59, B101,  151...........  212.......  242.......        15 kg        50 kg  B                  74
          free from yellow or                                                                      B106                                                                                         
          white phosphorus.                                                                                                                                                                     
 ......  Phosphorus pentoxide.....            8  UN1807               II  8.........            A7, N34  154...........  212.......  240.......        15 kg        50 kg  A                    

[[Page 206]]

                                                                                                                                                                                                
 ......  Phosphorus sesquisulfide,          4.1  UN1341               II  4.1.......           A20, N34  None..........  212.......  240.......        15 kg        50 kg  B                  74
          free from yellow or                                                                                                                                                                   
          white phosphorus.                                                                                                                                                                     
 ......  Phosphorus tribromide....            8  UN1808               II  8.........    A3, A6, A7, B2,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                      B25, N34, N43, T8                                                                                         
 ......  Phosphorus trichloride...          6.1  UN1809                I  6.1, 8....   2, B9, B14, B15,  None..........  227.......  244.......    Forbidden    Forbidden  C                  40
                                                                                         B32, B74, B77,                                                                                         
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Phosphorus trioxide......            8  UN2578               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                  12
                                                                       I                                                                                                                        
 ......  Phosphorus trisulfide,             4.1  UN1343               II  4.1.......           A20, N34  None..........  212.......  240.......        15 kg        50 kg  B                  74
          free from yellow or                                                                                                                                                                   
          white phosphorus.                                                                                                                                                                     
 ......  Phosphorus, white dry or           4.2  UN1381                I  4.2, 6.1..      B9, B26, N34,  None..........  188.......  243.......    Forbidden    Forbidden  E                    
          Phosphorus, white, under                                                        T15, T26, T33                                                                                         
          water or Phosphorus                                                                                                                                                                   
          white, in solution or                                                                                                                                                                 
          Phosphorus, yellow dry                                                                                                                                                                
          or Phosphorus, yellow,                                                                                                                                                                
          under water or                                                                                                                                                                        
          Phosphorus, yellow, in                                                                                                                                                                
          solution.                                                                                                                                                                             
 ......  Phosphorus white, molten.          4.2  UN2447                I  4.2, 6.1..      B9, B26, N34,  None..........  188.......  243.......    Forbidden    Forbidden  D                    
                                                                                          T15, T26, T29                                                                                         
 ......  Phosphorus (white or red)    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          and a chlorate, mixtures                                                                                                                                                              
          of.                                                                                                                                                                                   
 ......  Phosphoryl chloride, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Phosphorus oxychloride.                                                                                                                                                               
 ......  Phthalic anhydride with              8  UN2214               II  8.........                 T7  154...........  213.......  240.......        25 kg       100 kg  A                    
          more than .05 percent                                        I                                                                                                                        
          maleic anhydride.                                                                                                                                                                     
 ......  Phthalimide derivative               3  UN2774                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          flammable, toxic, flash                                                                                                                                                               
          point less than 23                                                                                                                                                                    
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Phthalimide derivative             6.1  UN3008                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Phthalimide derivative             6.1  UN3007                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic, flammable                                                                                                                                                                      
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....                T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        

[[Page 207]]

                                                                                                                                                                                                
 ......  Phthalimide derivative             6.1  UN2773                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          pesticides, solid, toxic.                                                                                                                                                             
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Picolines................            3  UN2313               II  3.........             B1, T8  150...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Picric acid, see           ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Trinitrophenol, etc.                                                                                                                                                                  
D......  Picric acid, wet, with             4.1  NA1344                I  4.1.......      A19, A20, N41  None..........  211.......  None......    Forbidden    Forbidden  D                    
          not less than 10 percent                                                                                                                                                              
          water.                                                                                                                                                                                
 ......  Picrite, see               ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Nitroguanidine, etc.                                                                                                                                                                  
 ......  Picryl chloride, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Trinitrochlorobenzene.                                                                                                                                                                
 ......  Pine oil.................            3  UN1272               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  alpha-Pinene.............            3  UN2368               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Piperazine...............            8  UN2579               II  8.........                 T7  154...........  213.......  240.......        25 kg       100 kg  A                  12
                                                                       I                                                                                                                        
 ......  Piperidine...............            3  UN2401               II  3, 8......                 T2  None..........  202.......  243.......          1 L          5 L  B                    
 ......  Pivaloyl chloride, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Trimethylacetyl chloride.                                                                                                                                                             
 ......  Plastic molding compound             9  UN3314               II  9.........                 32  155...........  213.......  None......       100 kg       200 kg  A              85, 87
          in dough, sheet or                                           I                                                                                                                        
          extruded rope form                                                                                                                                                                    
          evolving flammable vapor.                                                                                                                                                             
 ......  Plastic solvent, n.o.s.,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Flammable liquids,                                                                                                                                                                
          n.o.s.                                                                                                                                                                                
 ......  Plastics, nitrocellulose-          4.2  UN2006               II  4.2.......                     None..........  213.......  None......    Forbidden    Forbidden  C                    
          based, self-heating,                                         I                                                                                                                        
          n.o.s.                                                                                                                                                                                
 ......  Poisonous gases, n.o.s.,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Compressed or                                                                                                                                                                     
          liquefied gases,                                                                                                                                                                      
          flammable or toxic,                                                                                                                                                                   
          n.o.s.                                                                                                                                                                                
 ......  Polyalkylamines, n.o.s.,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Amines, etc.                                                                                                                                                                      
AW.....  Polychlorinated biphenyls            9  UN2315               II   9........              9, 81  155...........  202.......  241.......        100 L        220 L  A                  34
 ......  Polyester resin kit......            3  UN3269                   3.........                121   152..........  225.......  None......         5 kg         5 kg  B                    
 ......  Polyhalogenated                      9  UN3151               II   9........                     155...........  204.......  241.......        100 L        220 L  A                  34
          biphenyls, liquid or                                                                                                                                                                  
          Polyhalogenated                                                                                                                                                                       
          terphenyls liquid.                                                                                                                                                                    
 ......  Polyhalogenated                      9  UN3152               II   9........                     155...........  204.......  241.......       100 kg       200 kg  A                  34
          biphenyls, solid or                                                                                                                                                                   
          Polyhalogenated                                                                                                                                                                       
          terphenyls, solid.                                                                                                                                                                    
 ......  Polymeric beads,                     9  UN2211               II  None......                 32  155...........  221.......  240.......       100 kg       200 kg  A              85, 87
          expandable, evolving                                         I                                                                                                                        
          flammable vapor..                                                                                                                                                                     
 ......  Potassium................          4.3  UN2257                I  4.3.......     A19, A20, B27,  None..........  211.......  244.......    Forbidden        15 kg  D                    
                                                                                         B100, N6, N34,                                                                                         
                                                                                               T15, T26                                                                                         
 ......  Potassium arsenate.......          6.1  UN1677               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Potassium arsenite.......          6.1  UN1678               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Potassium bisulfite        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see                                                                                                                                                                         
          Bisulfites, inorganic,                                                                                                                                                                
          aqueous solutions, n.o.s.                                                                                                                                                             
 ......  Potassium borohydride....          4.3  UN1870                I  4.3.......     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Potassium bromate........          5.1  UN1484               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Potassium carbonyl.......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         

[[Page 208]]

                                                                                                                                                                                                
 ......  Potassium chlorate.......          5.1  UN1485               II  5.1.......            A9, N34  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Potassium chlorate,                5.1  UN2427               II  5.1.......             A2, T8  152...........  202.......  241.......          1 L          5 L  B             56, 58,
          aqueous solution.                                                                                                                                                                  106
         .........................  ...........  ...................  II  5.1.......             A2, T8  152...........  203.......  241.......        2.5 L         30 L  B             56, 58,
                                                                       I                                                                                                                 69, 106
 ......  Potassium chlorate mixed   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          with mineral oil, see                                                                                                                                                                 
          Explosive, blasting,                                                                                                                                                                  
          type C.                                                                                                                                                                               
 ......  Potassium cuprocyanide...          6.1  UN1679               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  26
 ......  Potassium cyanide........          6.1  UN1680                I  6.1.......     B69, B77, N74,  None..........  211.......  242.......         5 kg        50 kg  B                  52
                                                                                          N75, T18, T26                                                                                         
 ......  Potassium dichloro         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          isocyanurate or                                                                                                                                                                       
          Potassium dichloro-s-                                                                                                                                                                 
          triazinetrione, see                                                                                                                                                                   
          Dichloroisocyanuric                                                                                                                                                                   
          acid, dry or                                                                                                                                                                          
          Dichloroisocyanuric acid                                                                                                                                                              
          salts etc.                                                                                                                                                                            
 ......  Potassium dithionite or            4.2  UN1929               II  4.2.......       A8, A19, A20  None..........  212.......  241.......        15 kg        50 kg  E                  13
          Potassium hydrosulfite.                                                                                                                                                               
 ......  Potassium fluoride.......          6.1  UN1812               II  6.1.......                 T8  153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Potassium fluoroacetate..          6.1  UN2628                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  E                    
 ......  Potassium fluorosilicate.          6.1  UN2655               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Potassium hydrate, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Potassium hydroxide,                                                                                                                                                                  
          solid.                                                                                                                                                                                
 ......  Potassium hydrogen         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          fluoride, see Potassium                                                                                                                                                               
          hydrogen difluoride.                                                                                                                                                                  
 ......  Potassium hydrogen         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          fluoride solution, see                                                                                                                                                                
          Corrosive liquid, n.o.s.                                                                                                                                                              
 ......  Potassium hydrogen                   8  UN2509               II  8.........            A7, N34  154...........  212.......  240.......        15 kg        50 kg  A                    
          sulfate.                                                                                                                                                                              
 ......  Potassium                            8  UN1811               II  8, 6.1....  B106, N3, N34, T8  154...........  212.......  240.......        15 kg        50 kg  A             25, 26,
          hydrogendifluoride,                                                                                                                                                                 40
          solid.                                                                                                                                                                                
 ......  Potassium                            8  UN1811               II  8, 6.1....        N3, N34, T8  154...........  202.......  243.......          1 L         30 L  A             26, 40,
          hydrogendifluoride,                                                                                                                                                                 95
          solution.                                                                                                                                                                             
 ......  Potassium hydrosulfite,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Potassium dithionite.                                                                                                                                                             
 ......  Potassium hydroxide,       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquid, see Potassium                                                                                                                                                                 
          hydroxide solution.                                                                                                                                                                   
 ......  Potassium hydroxide,                 8  UN1813               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
          solid.                                                                                                                                                                                

[[Page 209]]

                                                                                                                                                                                                
 ......  Potassium hydroxide,                 8  UN1814               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Potassium hypochlorite,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see                                                                                                                                                                         
          Hypochlorite solutions,                                                                                                                                                               
          etc.                                                                                                                                                                                  
 ......  Potassium, metal alloys..          4.3  UN1420                I  4.3.......      A19, A20, B27  None..........  211.......  244.......    Forbidden        15 kg  D                    
 ......  Potassium metal, liquid    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          alloy, see Alkali metal                                                                                                                                                               
          alloys, liquid.                                                                                                                                                                       
 ......  Potassium metavanadate...          6.1  UN2864               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Potassium monoxide.......            8  UN2033               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Potassium nitrate........          5.1  UN1486               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Potassium nitrate and              5.1  UN1487               II  5.1.......                B78  152...........  212.......  240.......         5 kg        25 kg  A              56, 58
          sodium nitrite mixtures.                                                                                                                                                              
 ......  Potassium nitrite........          5.1  UN1488               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A              56, 58
 ......  Potassium perchlorate,             5.1  UN1489               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
          solid.                                                                                                                                                                             106
 ......  Potassium perchlorate,             5.1  UN1489               II  5.1.......                     152...........  202.......  242.......          1 L          5 L  A             56, 58,
          solution.                                                                                                                                                                          106
 ......  Potassium permanganate...          5.1  UN1490               II  5.1.......  .................  152...........  212.......  240.......         5 kg        25 kg  D             56, 58,
                                                                                                                                                                                             69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
 ......  Potassium peroxide.......          5.1  UN1491                I  5.1.......           A20, N34  None..........  211.......  None......    Forbidden        15 kg  B             13, 75,
                                                                                                                                                                                             106
 ......  Potassium persulfate.....          5.1  UN1492               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Potassium phosphide......          4.3  UN2012                I  4.3, 6.1..           A19, N40  None..........  211.......  None......    Forbidden        15 kg  E              40, 85
 ......  Potassium selenate, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Potassium selenite, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Potassium sodium alloys..          4.3  UN1422                I  4.3.......     A19, B27, N34,  None..........  211.......  244.......    Forbidden        15 kg  D                    
                                                                                          N40, T15, T26                                                                                         
 ......  Potassium sulfide,                 4.2  UN1382               II  4.2.......     A19, A20, B16,  None..........  212.......  241.......        15 kg        50 kg  A                    
          anhydrous or Potassium                                                              B106, N34                                                                                         
          sulfide with less than                                                                                                                                                                
          30 percent water of                                                                                                                                                                   
          crystallization.                                                                                                                                                                      
 ......  Potassium sulfide,                   8  UN1847               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                  26
          hydrated with not less                                                                                                                                                                
          than 30 percent water of                                                                                                                                                              
          crystallization.                                                                                                                                                                      
 ......  Potassium superoxide.....          5.1  UN2466                I  5.1.......                A20  None..........  211.......  None......    Forbidden        15 kg  B             13, 75,
                                                                                                                                                                                             106
 ......  Powder cake, wetted or            1.1C  UN0433               II   1.1C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Powder paste, wetted                                                                                                                                                                  
          with not less than 17                                                                                                                                                                 
          percent alcohol by mass.                                                                                                                                                              
 ......  Powder cake, wetted or            1.3C  UN0159               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Powder paste, wetted                                                                                                                                                                  
          with not less than 25                                                                                                                                                                 
          percent water, by mass.                                                                                                                                                               
 ......  Powder paste, see Powder   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          cake, etc.                                                                                                                                                                            
 ......  Powder, smokeless........         1.1C  UN0160               II   1.1C.....                     None..........  62........  None......    Forbidden    Forbidden  B                10E,
                                                                                                                                                                                             26E

[[Page 210]]

                                                                                                                                                                                                
 ......  Powder, smokeless........         1.3C  UN0161               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                10E,
                                                                                                                                                                                             26E
 ......  Power device, explosive,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Cartridges, power                                                                                                                                                                 
          device.                                                                                                                                                                               
 ......  Primers, cap type........         1.4S  UN0044               II  None......                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Primers, cap type........         1.1B  UN0377               II   1.1B.....                     None..........  62........  None......    Forbidden    Forbidden  B              2E, 6E
 ......  Primers, cap type........         1.4B  UN0378               II   1.4B.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Primers, small arms, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Primers, cap type.                                                                                                                                                                    
 ......  Primers, tubular.........         1.3G  UN0319               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Primers, tubular.........         1.4G  UN0320               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Primers, tubular.........         1.4S  UN0376               II  None......                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Printing ink, flammable..            3  UN1210                I  3.........            T8, T31  150...........  173.......  243.......          1 L         30 L  E                    
         .........................  ...........  ...................  II  3.........            T7, T30  150...........  173.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  173.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Projectiles,               ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          illuminating, see                                                                                                                                                                     
          Ammunition,                                                                                                                                                                           
          illuminating, etc.                                                                                                                                                                    
 ......  Projectiles, inert with           1.4S  UN0345               II   1.4S.....                      .............  62........  None......        25 kg       100 kg  A             3E, 7E,
          tracer.                                                                                                                                                                             9E
 ......  Projectiles, inert, with          1.3G  UN0424               II   1.3G.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          tracer.                                                                                                                                                                               
 ......  Projectiles, inert, with          1.4G  UN0425               II   1.4G.....                      .............  62........  None......    Forbidden        75 kg  A             3E, 7E,
          tracer.                                                                                                                                                                            24E
 ......  Projectiles, with burster         1.2D  UN0346               II   1.2D.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          or expelling charge.                                                                                                                                                                  
 ......  Projectiles, with burster         1.4D  UN0347               II   1.4D.....                      .............  62........  None......    Forbidden        75 kg  A             3E, 7E,
          or expelling charge.                                                                                                                                                               24E
 ......  Projectiles, with burster         1.2F  UN0426               II   1.2F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          or expelling charge.                                                                                                                                                                  
 ......  Projectiles, with burster         1.4F  UN0427               II   1.4F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          or expelling charge.                                                                                                                                                                  
 ......  Projectiles, with burster         1.2G  UN0434               II   1.2G.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          or expelling charge.                                                                                                                                                                  
 ......  Projectiles, with burster         1.4G  UN0435               II   1.4G.....                      .............  62........  None......    Forbidden        75 kg  A             3E, 7E,
          or expelling charge.                                                                                                                                                               24E
 ......  Projectiles, with                 1.1F  UN0167               II   1.1F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          bursting charge.                                                                                                                                                                      
 ......  Projectiles, with                 1.1D  UN0168               II   1.1D.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          bursting charge.                                                                                                                                                                      
 ......  Projectiles, with                 1.2D  UN0169               II   1.2D.....                      .............  62........  None......    Forbidden    Forbidden  B              3E, 7E
          bursting charge.                                                                                                                                                                      
 ......  Projectiles, with                 1.2F  UN0324               II   1.2F.....                      .............  62........  None......    Forbidden    Forbidden  E                    
          bursting charge.                                                                                                                                                                      

[[Page 211]]

                                                                                                                                                                                                
 ......  Projectiles, with                 1.4D  UN0344               II   1.4D.....                      .............  62........  None......    Forbidden        75 kg  A             3E, 7E,
          bursting charge.                                                                                                                                                                   24E
 ......  Propadiene, inhibited....          2.1  UN2200                   2.1.......                     None..........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Propadiene mixed with      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methyl acetylene, see                                                                                                                                                                 
          Methyl acetylene and                                                                                                                                                                  
          propadiene mixtures,                                                                                                                                                                  
          stabilized.                                                                                                                                                                           
 ......  Propane see also                   2.1  UN1978                   2.1.......                 19  306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          Petroleum gases,                                                                                                                                                                      
          liquefied.                                                                                                                                                                            
 ......  Propanethiols............            3  UN2402               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  E             95, 102
 ......  n-Propanol or Propyl                 3  UN1274               II  3.........             B1, T1  150...........  202.......  242.......          5 L         60 L  B                    
          alcohol, normal.                                                                                                                                                                      
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
D......  Propargyl alcohol........            3  NA1986               II  3, 6.1....                     None..........  202.......  243.......    Forbidden          1 L  B                  40
 ......  Propellant, liquid.......         1.3C  UN0495               II   1.3C.....                 37  None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Propellant, liquid.......         1.1C  UN0497               II   1.1C.....                 37  None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Propellant, solid........         1.1C  UN0498               II   1.1C.....                     None..........  62........  None......    Forbidden    Forbidden  A                    
 ......  Propellant, solid........         1.3C  UN0499               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  A                    
 ......  Propionaldehyde..........            3  UN1275               II  3.........                T14  150...........  202.......  242.......          5 L         60 L  E                    
 ......  Propionic acid...........            8  UN1848               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Propionic anhydride......            8  UN2496               II  8.........                 T2  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Propionitrile............            3  UN2404               II  3, 6.1....                T14  None..........  202.......  243.......    Forbidden         60 L  E                  40
 ......  Propionyl chloride.......            3  UN1815               II  3, 8......      B100, T8, T26  None..........  202.......  243.......          1 L          5 L  B                  40
 ......  n-Propyl acetate.........            3  UN1276               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Propyl alcohol, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Propanol.                                                                                                                                                                             
 ......  n-Propyl benzene.........            3  UN2364               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Propyl chloride..........            3  UN1278               II  3.........           N34, T14  None..........  202.......  242.......    Forbidden         60 L  E                    
 ......  n-Propyl chloroformate...          6.1  UN2740                I  6.1, 3, 8.     2, A3, A6, A7,  None..........  227.......  244.......    Forbidden        2.5 L  B             21, 40,
                                                                                          B9, B14, B32,                                                                                      100
                                                                                         B74, B77, N34,                                                                                         
                                                                                          T38, T43, T45                                                                                         
 ......  Propyl formates..........            3  UN1281               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  n-Propyl isocyanate......          6.1  UN2482                I  6.1, 3....    1, A7, B9, B14,  None..........  226.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B30, B72, T38,                                                                                         
                                                                                               T43, T44                                                                                         
 ......  Propyl mercaptan, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Propanethiols.                                                                                                                                                                        
 ......  n-Propyl nitrate.........            3  UN1865               II  3.........                T25  150...........  202.......  None......          5 L         60 L  D                    
 ......  Propylamine..............            3  UN1277               II  3, 8......           N34, T14  None..........  202.......  243.......          1 L          5 L  E                  40
 ......  Propylene see also                 2.1  UN1077                   2.1.......                 19  306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
          Petroleum gases,                                                                                                                                                                      
          liquefied.                                                                                                                                                                            
 ......  Propylene chlorohydrin...          6.1  UN2611               II  6.1, 3....                 T9  None..........  202.......  243.......          5 L         60 L  A             12, 40,
                                                                                                                                                                                              48
 ......  Propylene oxide..........            3  UN1280                I  3.........  A3, N34, T20, T29  None..........  201.......  243.......          1 L         30 L  E                  40
 ......  Propylene tetramer.......            3  UN2850               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  1,2-Propylenediamine.....            8  UN2258               II  8, 3......    A3, A6, N34, T8  None..........  202.......  243.......          1 L         30 L  A                  40
 ......  Propyleneimine, inhibited            3  UN1921                I  3.........       A3, N34, T25  None..........  201.......  243.......          1 L         30 L  B                  40
 ......  Propyltrichlorosilane....            8  UN1816               II  8, 3......   A7, B2, B6, N34,  None..........  202.......  243.......    Forbidden         30 L  C                  40
                                                                                                T8, T26                                                                                         
 ......  Prussic acid, see          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hydrogen cyanide.                                                                                                                                                                     

[[Page 212]]

                                                                                                                                                                                                
 ......  Pyridine.................            3  UN1282               II  3.........                 T8  None..........  202.......  242.......          5 L         60 L  B             21, 100
 ......  Pyridine perchlorate.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Pyrophoric liquid,                 4.2  UN3194                I  4.2.......                     None..........  181.......  244.......    Forbidden    Forbidden  D                  18
          inorganic, n.o.s.                                                                                                                                                                     
 ......  Pyrophoric liquids,                4.2  UN2845                I  4.2.......           B11, T42  None..........  181.......  244.......    Forbidden    Forbidden  D                  18
          organic, n.o.s.                                                                                                                                                                       
 ......  Pyrophoric metals,                 4.2  UN1383                I  4.2.......                B11  None..........  187.......  242.......    Forbidden    Forbidden  D                    
          n.o.s., or Pyrophoric                                                                                                                                                                 
          alloys, n.o.s.                                                                                                                                                                        
 ......  Pyrophoric organometallic          4.2  UN3203                I  4.2.......                     None..........  187.......  242.......    Forbidden    Forbidden  D                    
          compound, n.o.s.                                                                                                                                                                      
 ......  Pyrophoric solid,                  4.2  UN3200                I  4.2.......                     None..........  187.......  242.......    Forbidden    Forbidden  D                    
          inorganic, n.o.s.                                                                                                                                                                     
 ......  Pyrophoric solids,                 4.2  UN2846                I  4.2.......                     None..........  187.......  242.......    Forbidden    Forbidden  D                    
          organic, n.o.s.                                                                                                                                                                       
 ......  Pyrosulfuryl chloride....            8  UN1817               II  8.........        B2, T9, T27  154...........  202.......  242.......          1 L         30 L  C                  40
 ......  Pyroxylin solution or      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solvent, see                                                                                                                                                                          
          Nitrocellulose.                                                                                                                                                                       
 ......  Pyrrolidine..............            3  UN1922               II  3, 8......                 T1  None..........  202.......  243.......          1 L          5 L  B                  40
 ......  Quebrachitol pentanitrate    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Quicklime, see Calcium     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          oxide.                                                                                                                                                                                
 ......  Quinoline................          6.1  UN2656               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  A                  12
                                                                       I                                                                                                                        
 ......  R 114, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dichlorotetrafluoroethan                                                                                                                                                              
          e.                                                                                                                                                                                    
 ......  R 115, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chloropentafluoroethane.                                                                                                                                                              
 ......  R 116, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hexafluoroethane.                                                                                                                                                                     
 ......  R 124, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorotetrafluoroethane.                                                                                                                                                              
 ......  R 133a, see                ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorotrifluoroethane.                                                                                                                                                                
 ......  R 152a, see                ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Difluoroethane.                                                                                                                                                                       
 ......  R 500, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dichlorodifluoromethane                                                                                                                                                               
          and difluorethane, etc.                                                                                                                                                               
 ......  R 502, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorodifluoromethane                                                                                                                                                                 
          and                                                                                                                                                                                   
          chloropentafluoroethane                                                                                                                                                               
          mixture, etc.                                                                                                                                                                         
 ......  R 503, see                 ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorotrifluoromethane                                                                                                                                                                
          and trifluoromethane,                                                                                                                                                                 
          etc.                                                                                                                                                                                  
 ......  R 12, see                  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dichlorodifluoromethane.                                                                                                                                                              
 ......  R 12B1, see                ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorodifluorobromometha                                                                                                                                                              
          ne.                                                                                                                                                                                   
 ......  R 13, see                  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorotrifluoromethane.                                                                                                                                                               
 ......  R 13B1, see                ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Bromotrifluoromethane.                                                                                                                                                                
 ......  R 14, see                  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tetrafluoromethane.                                                                                                                                                                   
 ......  R 21, see                  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Dichlorofluoromethane.                                                                                                                                                                
 ......  R 22, see                  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Chlorodifluoromethane.                                                                                                                                                                

[[Page 213]]

                                                                                                                                                                                                
         Radioactive material,                7  UN2910               ..  None......  .................  422, 426......  422, 426..  422, 426..  ...........  ...........  A                    
          excepted package-                                                                                                                                                                     
          articles manufactured                                                                                                                                                                 
          from natural or depleted                                                                                                                                                              
          uranium or natural                                                                                                                                                                    
          thorium.                                                                                                                                                                              
         Radioactive material,                7  UN2910               ..  empty.....  .................  428...........  428.......  428.......  ...........  ...........  A             .......
          excepted package-empty                                                                                                                                                                
          package or empty                                                                                                                                                                      
          packaging.                                                                                                                                                                            
         Radioactive material,                7  UN2910               ..  None......  .................  422, 424......  422, 424..  422, 424..  ...........  ...........  A                    
          excepted package-                                                                                                                                                                     
          instruments or articles.                                                                                                                                                              
         Radioactive material,                7  UN2910               ..  None......  .................  421, 422......  421, 422..  421, 422..  ...........  ...........  A                    
          excepted package-limited                                                                                                                                                              
          quantity of material.                                                                                                                                                                 
 ......  Radioactive material,                7  UN2918                   7.........                     453...........  417.......  417.......  ...........  ...........  A              40, 95
          fissile, n.o.s.                                                                                                                                                                       
         Radioactive material, low            7  UN2912               ..  7.........  .................  421, 428......  427.......  427.......  ...........  ...........  A             .......
          specific activity,                                                                                                                                                                    
          n.o.s.or Radioactive                                                                                                                                                                  
          material, LSA, n.o.s.                                                                                                                                                                 
         Radioactive material,                7  UN2982               ..  7.........  .................  421, 428......  415, 416..  415, 416..  ...........  ...........  A              40, 95
          n.o.s.                                                                                                                                                                                
         Radioactive material,                7  UN2974               ..  7.........  .................  421, 424......  415, 416..  415, 416..  ...........  ...........  A                    
          special form, n.o.s.                                                                                                                                                                  
         Radioactive material,                7  UN2913               ..  7.........  .................  421, 424, 426.  427.......  427.......  ...........  ...........  A                    
          surface contaminated                                                                                                                                                                  
          object or Radioactive                                                                                                                                                                 
          material, SCO.                                                                                                                                                                        
 ......  Railway torpedo, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Signals, railway track,                                                                                                                                                               
          explosive.                                                                                                                                                                            
 ......  Rare gases and nitrogen            2.2  UN1981                   2.2.......                     306...........  302.......  None......        75 kg       150 kg  A                    
          mixtures, compressed.                                                                                                                                                                 
 ......  Rare gases and oxygen              2.2  UN1980                   2.2.......                     306...........  302.......  None......        75 kg       150 kg  A                    
          mixtures, compressed.                                                                                                                                                                 
 ......  Rare gases mixtures,               2.2  UN1979                   2.2.......                     306...........  302.......  None......        75 kg       150 kg  A                    
          compressed.                                                                                                                                                                           
 ......  RC 318, see                ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Octafluorocyclobutane.                                                                                                                                                                
 ......  RDX and                    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          cyclotetramethylenetetra                                                                                                                                                              
          nitramine, wetted or                                                                                                                                                                  
          desensitized see RDX and                                                                                                                                                              
          HMX mixtures, wetted or                                                                                                                                                               
          desensitized.                                                                                                                                                                         
 ......  RDX and HMX mixtures,             1.1D  UN0391               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with not less                                                                                                                                                                  
          than 15 percent water by                                                                                                                                                              
          mass or RDX and HMX                                                                                                                                                                   
          mixtures, desensitized                                                                                                                                                                
          with not less than 10                                                                                                                                                                 
          percent phlegmatizer by                                                                                                                                                               
          mass.                                                                                                                                                                                 
 ......  RDX and Octogen mixtures,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          wetted or desensitized                                                                                                                                                                
          see RDX and HMX                                                                                                                                                                       
          mixtures, wetted or                                                                                                                                                                   
          desensitized etc.                                                                                                                                                                     
 ......  RDX, see                   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Cyclotrimethylene                                                                                                                                                                     
          trinitramine, etc.                                                                                                                                                                    
 ......  Receptacles, small,                2.1  UN2037                   2.1.......                     306...........  304.......  None......         1 kg        15 kg  B                  40
          containing gas (gas                                                                                                                                                                   
          cartridges) flammable,                                                                                                                                                                
          without release device,                                                                                                                                                               
          not refillable and not                                                                                                                                                                
          exceeding 1 L capacity.                                                                                                                                                               

[[Page 214]]

                                                                                                                                                                                                
 ......  Receptacles, small,                2.2  UN2037                   2.2.......                     306...........  304.......  None......         1 kg        15 kg  B                  40
          containing gas (gas                                                                                                                                                                   
          cartridges) non-                                                                                                                                                                      
          flammable, without                                                                                                                                                                    
          release device, not                                                                                                                                                                   
          refillable and not                                                                                                                                                                    
          exceeding 1 L capacity.                                                                                                                                                               
 ......  Red phosphorus, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Phosphorus, amorphous.                                                                                                                                                                
 ......  Refrigerant gases, n.o.s.          2.2  UN1078                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
D......  Refrigerant gases, n.o.s.          2.1  NA1954                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  D                  40
          or Dispersant gases,                                                                                                                                                                  
          n.o.s.                                                                                                                                                                                
D......  Refrigerating machine....            3  NA1993               II  3.........                     174...........  174.......  None......         10 L         10 L  A                    
                                                                       I                                                                                                                        
D......  Refrigerating machines,            2.1  NA1954                   2.1.......                     306...........  306.......  306.......    Forbidden        25 kg  C                  40
          containing flammable,                                                                                                                                                                 
          non-poisonous, liquefied                                                                                                                                                              
          gas.                                                                                                                                                                                  
 ......  Refrigerating machines,            2.2  UN2857                   2.2.......                     306, 307......  306.......  306, 307..    Forbidden       450 kg  A                    
          containing non-                                                                                                                                                                       
          flammable, non-toxic,                                                                                                                                                                 
          liquefied gas or ammonia                                                                                                                                                              
          solution (UN2672).                                                                                                                                                                    
D......  Regulated medical waste..          6.2  UN3291               II  6.2.......           A13, A14  134...........  197.......  None......    Forbidden    Forbidden  E                    
 ......  Release devices,                  1.4S  UN0173               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
          explosive.                                                                                                                                                                            
 ......  Resin solution, flammable            3  UN1866                I  3.........       B52, T8, T31  150...........  201.......  243.......          1 L         30 L  E             .......
         .........................  ...........  ...................  II  3.........       B52, T7, T30  150...........  173.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........   B1, B52, T7, T30  150...........  173.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Resorcinol...............          6.1  UN2876               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Rifle grenade, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Grenades, hand or rifle,                                                                                                                                                              
          etc.                                                                                                                                                                                  
 ......  Rifle powder, see Powder,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          smokeless (UN 0160).                                                                                                                                                                  
 ......  Rivets, explosive........         1.4S  UN0174               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Road asphalt or tar        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          liquid, see Tars,                                                                                                                                                                     
          liquid, etc.                                                                                                                                                                          
 ......  Rocket motors............         1.3C  UN0186               II   1.3C.....                109  None..........  62........  None......    Forbidden       220 kg  B                    
 ......  Rocket motors............         1.1C  UN0280               II   1.1C.....                109  None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Rocket motors............         1.2C  UN0281               II   1.2C.....                109  None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Rocket motors, liquid             1.2J  UN0395               II   1.2J.....                109  None..........  62........  None......    Forbidden    Forbidden  E                 7E,
          fueled.                                                                                                                                                                           16E,
                                                                                                                                                                                             23E

[[Page 215]]

                                                                                                                                                                                                
 ......  Rocket motors, liquid             1.3J  UN0396               II   1.3J.....                109  None..........  62........  None......    Forbidden    Forbidden  E                 7E,
          fueled.                                                                                                                                                                           16E,
                                                                                                                                                                                             23E
 ......  Rocket motors with                1.3L  UN0250               II   1.3L.....                109  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          hypergolic liquids with                                                                                                                                                           11E,
          or without an expelling                                                                                                                                                            17E
          charge.                                                                                                                                                                               
 ......  Rocket motors with                1.2L  UN0322               II   1.2L.....                109  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          hypergolic liquids with                                                                                                                                                           11E,
          or without an expelling                                                                                                                                                            17E
          charge.                                                                                                                                                                               
 ......  Rockets, line-throwing...         1.2G  UN0238               II   1.2G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Rockets, line-throwing...         1.3G  UN0240               II   1.3G.....                     None..........  62........  None......    Forbidden        75 kg  B                    
 ......  Rockets, line-throwing...         1.4G  UN0453               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Rockets, liquid fueled            1.1J  UN0397               II   1.1J.....                     None..........  62........  None......    Forbidden    Forbidden  E                 7E,
          with bursting charge.                                                                                                                                                             16E,
                                                                                                                                                                                             23E
 ......  Rockets, liquid fueled            1.2J  UN0398               II   1.2J.....                     None..........  62........  None......    Forbidden    Forbidden  E                 7E,
          with bursting charge.                                                                                                                                                             16E,
                                                                                                                                                                                             23E
 ......  Rockets, with bursting            1.1F  UN0180               II   1.1F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          charge.                                                                                                                                                                               
 ......  Rockets, with bursting            1.1E  UN0181               II   1.1E.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          charge.                                                                                                                                                                               
 ......  Rockets, with bursting            1.2E  UN0182               II   1.2E.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          charge.                                                                                                                                                                               
 ......  Rockets, with bursting            1.2F  UN0295               II   1.2F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          charge.                                                                                                                                                                               
 ......  Rockets, with expelling           1.2C  UN0436               II   1.2C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          charge.                                                                                                                                                                               
 ......  Rockets, with expelling           1.3C  UN0437               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          charge.                                                                                                                                                                               
 ......  Rockets, with expelling           1.4C  UN0438               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          charge.                                                                                                                                                                               
 ......  Rockets, with inert head.         1.3C  UN0183               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Rosin oil................            3  UN1286               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Rubber solution..........            3  UN1287               II  3.........            T7, T30  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Rubidium.................          4.3  UN1423                I  4.3.......       22, A7, A19,  None..........  211.......  242.......    Forbidden        15 kg  D                    
                                                                                        B100, N34, N40,                                                                                         
                                                                                                    N45                                                                                         
 ......  Rubidium hydroxide.......            8  UN2678               II  8.........                 T8  154...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Rubidium hydroxide                   8  UN2677               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Safety fuse, see Fuse,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          safety.                                                                                                                                                                               
 ......  Samples, explosive, other  ...........  UN0190               II  ..........                113  None..........  62........  None......    Forbidden    Forbidden  E                 12E
          than initiating                                                                                                                                                                       
          explosives.                                                                                                                                                                           
 ......  Sand acid, see             ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Fluorosilicic acid.                                                                                                                                                                   
 ......  Seed cake, containing              4.2  UN1386               II  None......                 N7  None..........  213.......  241.......    Forbidden    Forbidden  A                  13
          vegetable oil solvent                                        I                                                                                                                        
          extractions and expelled                                                                                                                                                              
          seeds, with not more                                                                                                                                                                  
          than 10 percent of oil                                                                                                                                                                
          and when the amount of                                                                                                                                                                
          moisture is higher than                                                                                                                                                               
          11 percent, with not                                                                                                                                                                  
          more than 20 percent of                                                                                                                                                               
          oil and moisture                                                                                                                                                                      
          combined..                                                                                                                                                                            
I......  Seed cake with more than           4.2  UN1386               II  None......                 N7  None..........  213.......  241.......    Forbidden    Forbidden  E                  13
          1.5 percent oil and not                                      I                                                                                                                        
          more than 11 percent                                                                                                                                                                  
          moisture.                                                                                                                                                                             

[[Page 216]]

                                                                                                                                                                                                
I......  Seed cake with not more            4.2  UN2217               II  None......                 N7  None..........  213.......  241.......    Forbidden    Forbidden  A                  13
          than 1.5 percent oil and                                     I                                                                                                                        
          not more than 11 percent                                                                                                                                                              
          moisture.                                                                                                                                                                             
 ......  Selenates or Selenites...          6.1  UN2630                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  E                    
 ......  Selenic acid.............            8  UN1905                I  8.........                N34  None..........  211.......  242.......    Forbidden        25 kg  A                    
 ......  Selenium compound, n.o.s.          6.1  UN3283                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  B                    
         .........................  ...........  ...................  II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  B                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Selenium disulfide.......          6.1  UN2657               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Selenium hexafluoride....          2.3  UN2194                   2.3, 8....                  1  None..........  302.......  None......    Forbidden    Forbidden  D                  40
 ......  Selenium nitride.........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
D......  Selenium oxide...........          6.1  NA2811                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  B                    
 ......  Selenium oxychloride.....            8  UN2879                I  8, 6.1....   A3, A6, A7, N34,  None..........  201.......  243.......        0.5 L        2.5 L  E                  40
                                                                                               T12, T27                                                                                         
 ......  Self-heating liquid,               4.2  UN3188               II  4.2, 8....                     None..........  202.......  243.......          1 L          5 L  C                    
          corrosive, inorganic,                                                                                                                                                                 
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.2, 8....                     None..........  203.......  241.......          5 L         60 L  C                    
                                                                       I                                                                                                                        
 ......  Self-heating liquid,               4.2  UN3185               II  4.2, 8....                     None..........  202.......  243.......          1 L          5 L  C                    
          corrosive, organic,                                                                                                                                                                   
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.2, 8....                     None..........  203.......  241.......          5 L         60 L  C                    
                                                                       I                                                                                                                        
 ......  Self-heating liquid,               4.2  UN3186               II  4.2.......                     None..........  202.......  242.......          1 L          5 L  C                    
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.2.......                     None..........  203.......  241.......          5 L         60 L  C                    
                                                                       I                                                                                                                        
 ......  Self-heating liquid,               4.2  UN3183               II  4.2.......                     None..........  202.......  242.......          1 L          5 L  C                    
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  4.2.......                     None..........  203.......  241.......          5 L         60 L  C                    
                                                                       I                                                                                                                        
 ......  Self-heating liquid,               4.2  UN3187               II  4.2, 6.1..                     None..........  202.......  243.......          1 L          5 L  C                    
          toxic, inorganic, n.o.s.                                                                                                                                                              
         .........................  ...........  ...................  II  4.2, 6.1..                     None..........  203.......  241.......          5 L         60 L  C                    
                                                                       I                                                                                                                        
 ......  Self-heating liquid,               4.2  UN3184               II  4.2, 6.1..                     None..........  202.......  243.......          1 L          5 L  C                    
          toxic, organic, n.o.s.                                                                                                                                                                
         .........................  ...........  ...................  II  4.2, 6.1..                     None..........  203.......  241.......          5 L         60 L  C                    
                                                                       I                                                                                                                        
 ......  Self-heating solid,                4.2  UN3192               II  4.2, 8....                     None..........  212.......  242.......        15 kg        50 kg   C                   
          corrosive, inorganic,                                                                                                                                                                 
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.2, 8....                     None..........  213.......  242.......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Self-heating, solid,               4.2  UN3126               II  4.2, 8....                     None..........  212.......  242.......        15 kg        50 kg  C                    
          corrosive, organic,                                                                                                                                                                   
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.2, 8....                     None..........  213.......  242.......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Self-heating solid,                4.2  UN3190               II  4.2.......                     None..........  212.......  241.......        15 kg        50 kg  C                    
          inorganic, n.o.s.                                                                                                                                                                     

[[Page 217]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  4.2.......                     None..........  213.......  241.......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Self-heating, solid,               4.2  UN3088               II  4.2.......               B101  None..........  212.......  241.......        15 kg        50 kg  C                    
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  4.2.......               B101  None..........  213.......  241.......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Self-heating, solid,               4.2  UN3127                   4.2, 5.1..                     None..........  214.......  214.......    Forbidden    Forbidden  ............         
          oxidizing, n.o.s.                                                                                                                                                                     
 ......  Self-heating solid,                4.2  UN3191               II  4.2, 6.1..                     None..........  212.......  242.......        15 kg        50 kg  C                    
          toxic, inorganic, n.o.s.                                                                                                                                                              
         .........................  ...........  ...................  II  4.2, 6.1..                     None..........  213.......  242.......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Self-heating, solid,               4.2  UN3128               II  4.2, 6.1..                     None..........  212.......  242.......        15 kg        50 kg  C                    
          toxic, organic, n.o.s.                                                                                                                                                                
         .........................  ...........  ...................  II  4.2, 6.1..                     None..........  213.......  242.......        25 kg       100 kg  C                    
                                                                       I                                                                                                                        
 ......  Self-propelled vehicle,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Engines or Batteries                                                                                                                                                              
          etc.                                                                                                                                                                                  
 ......  Self-reactive liquid type          4.1  UN3221               II  4.1.......                 53  None..........  224.......  None......    Forbidden    Forbidden  D                  61
          B.                                                                                                                                                                                    
 ......  Self-reactive liquid type          4.1  UN3231               II  4.1.......                 53  None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          B, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive liquid type          4.1  UN3223               II  4.1.......                     None..........  224.......  None......          5 L         10 L  D                  61
          C.                                                                                                                                                                                    
 ......  Self-reactive liquid type          4.1  UN3233               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          C, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive liquid type          4.1  UN3225               II  4.1.......                     None..........  224.......  None......          5 L         10 L  D                  61
          D.                                                                                                                                                                                    
 ......  Self-reactive liquid type          4.1  UN3235               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          D, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive liquid type          4.1  UN3227               II  4.1.......                     None..........  224.......  None......         10 L         25 L  D                  61
          E.                                                                                                                                                                                    
 ......  Self-reactive liquid type          4.1  UN3237               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          E, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive liquid type          4.1  UN3229               II  4.1.......                     None..........  224.......  None......         10 L         25 L  D                  61
          F.                                                                                                                                                                                    
 ......  Self-reactive liquid type          4.1  UN3239               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          F, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive solid type           4.1  UN3222               II  4.1.......                 53  None..........  224.......  None......    Forbidden    Forbidden  D                  61
          B.                                                                                                                                                                                    
 ......  Self-reactive solid type           4.1  UN3232               II  4.1.......                 53  None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          B, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive solid type           4.1  UN3224               II  4.1.......                     None..........  224.......  None......         5 kg        10 kg  D                  61
          C.                                                                                                                                                                                    
 ......  Self-reactive solid type           4.1  UN3234               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          C, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive solid type           4.1  UN3226               II  4.1.......                     None..........  224.......  None......         5 kg        10 kg  D                  61
          D.                                                                                                                                                                                    
 ......  Self-reactive solid type           4.1  UN3236               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          D, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive solid type           4.1  UN3228               II  4.1.......                     None..........  224.......  None......        10 kg        25 kg  D                  61
          E.                                                                                                                                                                                    
 ......  Self-reactive solid type           4.1  UN3238               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          E, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Self-reactive solid type           4.1  UN3230               II  4.1.......                     None..........  224.......  None......        10 kg        25 kg  D                  61
          F.                                                                                                                                                                                    
 ......  Self-reactive solid type           4.1  UN3240               II  4.1.......                     None..........  224.......  None......    Forbidden    Forbidden  D               2, 61
          F, temperature                                                                                                                                                                        
          controlled.                                                                                                                                                                           
 ......  Shale oil................            3  UN1288                I  3.........                 T7  None..........  201.......  243.......          1 L         30 L  B                    
         .........................  ...........  ...................  II  3.........            T7, T30  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Shaped charges,            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          commercial, see Charges,                                                                                                                                                              
          shaped, commercial etc.                                                                                                                                                               

[[Page 218]]

                                                                                                                                                                                                
 ......  Signal devices, hand.....         1.4G  UN0191               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Signal devices, hand.....         1.4S  UN0373               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
 ......  Signals, distress, ship..         1.1G  UN0194               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Signals, distress, ship..         1.3G  UN0195               II   1.3G.....                     None..........  62........  None......    Forbidden        75 kg  B                    
 ......  Signals, highway, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Signal devices, hand;                                                                                                                                                                 
          Fireworks, type D.                                                                                                                                                                    
 ......  Signals, railway track,           1.1G  UN0192               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          explosive.                                                                                                                                                                            
 ......  Signals, railway track,           1.4S  UN0193               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                    
          explosive.                                                                                                                                                                            
 ......  Signals, railway track,           1.3G  UN0492                    1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  E              1E, 8E
          explosive.                                                                                                                                                                            
 ......  Signals, railway track,           1.4G  UN0493                    1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
          explosive.                                                                                                                                                                            
 ......  Signals, ship distress,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          water-activated, see                                                                                                                                                                  
          Contrivances, water-                                                                                                                                                                  
          activated, etc.                                                                                                                                                                       
 ......  Signals, smoke...........         1.1G  UN0196               II   1.1G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Signals, smoke...........         1.4G  UN0197               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Signals, smoke...........         1.2G  UN0313               II   1.2G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Signals, smoke...........         1.3G  UN0487               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Silane, compressed.......          2.1  UN2203                   2.1.......                     None..........  302.......  None......    Forbidden    Forbidden  E             40, 57,
                                                                                                                                                                                             104
 ......  Silicofluoric acid, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Fluorosilicic acid.                                                                                                                                                                   
 ......  Silicon chloride, see      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Silicon tetrachloride.                                                                                                                                                                
 ......  Silicon powder, amorphous          4.1  UN1346               II  4.1.......                 A1  None..........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Silicon tetrachloride....            8  UN1818               II  8.........    A3, A6, B2, B6,  154...........  202.......  242.......          1 L         30 L  C                  40
                                                                                          T18, T26, T29                                                                                         
 ......  Silicon tetrafluoride,             2.3  UN1859                   2.3, 8....                  2  None..........  302.......  None......    Forbidden    Forbidden  D                  40
          compressed.                                                                                                                                                                           
 ......  Silver acetylide (dry)...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Silver arsenite..........          6.1  UN1683               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Silver azide (dry).......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Silver chlorite (dry)....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Silver cyanide...........          6.1  UN1684               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A              26, 40
 ......  Silver fulminate (dry)...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Silver nitrate...........          5.1  UN1493               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A                    
 ......  Silver oxalate (dry).....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Silver picrate (dry).....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Silver picrate, wetted             4.1  UN1347                I  4.1.......                     None..........  211.......  None......    Forbidden    Forbidden  D              28, 36
          with not less than 30                                                                                                                                                                 
          percent water, by mass.                                                                                                                                                               

[[Page 219]]

                                                                                                                                                                                                
 ......  Sludge, acid.............            8  UN1906               II  8.........   A3, A7, B2, N34,  None..........  202.......  242.......    Forbidden         30 L  C                  14
                                                                                                T9, T27                                                                                         
D......  Smokeless powder for               4.1  NA3178                I  4.1.......                 16  None..........  171.......  None......    Forbidden       7.3 kg  A                    
          small arms (100 pounds                                                                                                                                                                
          or less).                                                                                                                                                                             
 ......  Soda lime with more than             8  UN1907               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
          4 percent sodium                                             I                                                                                                                        
          hydroxide.                                                                                                                                                                            
 ......  Sodium...................          4.3  UN1428                I  4.3.......  A7, A8, A19, A20,  None..........  211.......  244.......    Forbidden        15 kg  D                    
                                                                                          B9, B48, B68,                                                                                         
                                                                                         N34, T15, T29,                                                                                         
                                                                                                    T46                                                                                         
 ......  Sodium aluminate, solid..            8  UN2812               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Sodium aluminate,                    8  UN1819               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
          solution.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Sodium aluminum hydride..          4.3  UN2835               II  4.3.......      A8, A19, A20,  151...........  212.......  242.......    Forbidden        50 kg  E                    
                                                                                                   B100                                                                                         
 ......  Sodium ammonium vanadate.          6.1  UN2863               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Sodium arsanilate........          6.1  UN2473               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Sodium arsenate..........          6.1  UN1685               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Sodium arsenite, aqueous           6.1  UN1686               II  6.1.......                T15  None..........  202.......  243.......          5 L         60 L  A                    
          solutions.                                                                                                                                                                            
         .........................  ...........  ...................  II  6.1.......                T15  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Sodium arsenite, solid...          6.1  UN2027               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Sodium azide.............          6.1  UN1687               II  6.1.......                B28  None..........  212.......  242.......        25 kg       100 kg  A             36, 52,
                                                                                                                                                                                              91
 ......  Sodium bifluoride, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sodium                                                                                                                                                                                
          hydrogendifluoride.                                                                                                                                                                   
 ......  Sodium bisulfite,          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see                                                                                                                                                                         
          Bisulfites, aqueous                                                                                                                                                                   
          solutions, n.o.s.                                                                                                                                                                     
 ......  Sodium borohydride.......          4.3  UN1426                I  4.3.......          B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Sodium borohydride and               8  UN3320               II  8.........        B2, N34, T8  154...........  202.......  242.......          1 L         30 L  A                  26
          sodium hydroxide                                                                                                                                                                      
          solution, with not more                                                                                                                                                               
          than 12 percent sodium                                                                                                                                                                
          borohydride and not more                                                                                                                                                              
          than 40 percent sodium                                                                                                                                                                
          hydroxide by mass.                                                                                                                                                                    
         .........................  ...........  ...................  II  8.........        B2, N34, T7  154...........  203.......  241.......          5 L         60 L  A             .......
                                                                       I                                                                                                                        
 ......  Sodium bromate...........          5.1  UN1494               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Sodium cacodylate........          6.1  UN1688               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  26
 ......  Sodium chlorate..........          5.1  UN1495               II  5.1.......        A9, N34, T8  152...........  212.......  240.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Sodium chlorate, aqueous           5.1  UN2428               II  5.1.......         A2, B6, T8  152...........  202.......  241.......          1 L          5 L  B             56, 58,
          solution.                                                                                                                                                                          106
         .........................  ...........  ...................  II  5.1.......             A2, T8  152...........  203.......  241.......        2.5 L         30 L  B             56, 58,
                                                                       I                                                                                                                 69, 106
 ......  Sodium chlorate mixed      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          with dinitrotoluene, see                                                                                                                                                              
          Explosive blasting, type                                                                                                                                                              
          C.                                                                                                                                                                                    
 ......  Sodium chlorite..........          5.1  UN1496               II  5.1.......        A9, N34, T8  None..........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Sodium chloroacetate.....          6.1  UN2659               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        

[[Page 220]]

                                                                                                                                                                                                
 ......  Sodium cuprocyanide,               6.1  UN2316                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  26
          solid.                                                                                                                                                                                
 ......  Sodium cuprocyanide,               6.1  UN2317                I  6.1.......            T8, T26  None..........  201.......  243.......          1 L         30 L  B              26, 40
          solution.                                                                                                                                                                             
 ......  Sodium cyanide...........          6.1  UN1689                I  6.1.......     B69, B77, N74,  None..........  211.......  242.......         5 kg        50 kg  B                  52
                                                                                               N75, T42                                                                                         
 ......  Sodium                     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dichloroisocyanurate or                                                                                                                                                               
          Sodium dichloro-s-                                                                                                                                                                    
          triazinetrione, see                                                                                                                                                                   
          Dichloroisocyanuric acid                                                                                                                                                              
          etc.                                                                                                                                                                                  
 ......  Sodium dinitro-o-                 1.3C  UN0234               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          cresolate, dry or wetted                                                                                                                                                              
          with less than 15                                                                                                                                                                     
          percent water, by mass.                                                                                                                                                               
 ......  Sodium dinitro-o-                  4.1  UN1348                I  4.1, 6.1..  23, A8, A19, A20,  None..........  211.......  None......         1 kg        15 kg  E              28, 36
          cresolate, wetted with                                                                    N41                                                                                         
          not less than 15 percent                                                                                                                                                              
          water, by mass.                                                                                                                                                                       
 ......  Sodium dithionite or               4.2  UN1384               II  4.2.......     A19, A20, B106  None..........  212.......  241.......        15 kg        50 kg  E                  13
          Sodium hydrosulfite.                                                                                                                                                                  
 ......  Sodium fluoride..........          6.1  UN1690               II  6.1.......                 T8  153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Sodium fluoroacetate.....          6.1  UN2629                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  E                    
 ......  Sodium fluorosilicate....          6.1  UN2674               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Sodium hydrate, see        ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sodium hydroxide, solid.                                                                                                                                                              
 ......  Sodium hydride...........          4.3  UN1427                I  4.3.......     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
 ......  Sodium                               8  UN2439               II  8.........      B106, N3, N34  154...........  212.......  240.......        15 kg        50 kg  A             12, 25,
          hydrogendifluoride,                                                                                                                                                             26, 40
          solid.                                                                                                                                                                                
 ......  Sodium hydrogendifluoride            8  UN2439               II  8.........            N3, N34  154...........  202.......  242.......          1 L         30 L  A             12, 25,
          solution.                                                                                                                                                                       26, 40
D......  Sodium hydrosulfide,                 8  NA2922               II  8, 6.1....                 B2  154...........  202.......  243.......          1 L         30 L  B              40, 95
          solution.                                                                                                                                                                             
 ......  Sodium hydrosulfide, with          4.2  UN2318               II  4.2.......       A7, A19, A20  None..........  212.......  241.......        15 kg        50 kg  A                    
          less than 25 percent                                                                                                                                                                  
          water of crystallization.                                                                                                                                                             
 ......  Sodium hydrosulfide with             8  UN2949               II  8.........                 A7  154...........  212.......  240.......        15 kg        50 kg  A                  26
          not less than 25 percent                                                                                                                                                              
          water of crystallization.                                                                                                                                                             
 ......  Sodium hydrosulfite, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sodium dithionite.                                                                                                                                                                    
 ......  Sodium hydroxide, solid..            8  UN1823               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Sodium hydroxide solution            8  UN1824               II  8.........        B2, N34, T8  154...........  202.......  242.......          1 L         30 L  A                    
         .........................  ...........  ...................  II  8.........            N34, T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Sodium hypochlorite,       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          solution, see                                                                                                                                                                         
          Hypochlorite solutions                                                                                                                                                                
          etc.                                                                                                                                                                                  

[[Page 221]]

                                                                                                                                                                                                
 ......  Sodium metal, liquid       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          alloy, see Alkali metal                                                                                                                                                               
          alloys, liquid, n.o.s.                                                                                                                                                                
 ......  Sodium methylate.........          4.2  UN1431               II  4.2, 8....                A19  None..........  212.......  242.......        15 kg        50 kg  B                    
 ......  Sodium methylate                     3  UN1289               II  3, 8......            T8, T31  None..........  202.......  243.......          1 L          5 L  B                    
          solutions in alcohol.                                                                                                                                                                 
         .........................  ...........  ...................  II  3, 8......        B1, T7, T30  150...........  203.......  242.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Sodium monoxide..........            8  UN1825               II  8.........                     154...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Sodium nitrate...........          5.1  UN1498               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Sodium nitrate and                 5.1  UN1499               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
          potassium nitrate                                            I                                                                                                                        
          mixtures.                                                                                                                                                                             
 ......  Sodium nitrite...........          5.1  UN1500               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A              56, 58
                                                                       I                                                                                                                        
 ......  Sodium pentachlorophenate          6.1  UN2567               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Sodium perchlorate.......          5.1  UN1502               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Sodium permanganate......          5.1  UN1503               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  D             56, 58,
                                                                                                                                                                                             69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
 ......  Sodium peroxide..........          5.1  UN1504                I  5.1.......           A20, N34  None..........  211.......  None......    Forbidden        15 kg  B             13, 75,
                                                                                                                                                                                             106
 ......  Sodium peroxoborate,               5.1  UN3247               II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  A             13, 25,
          anhydrous.                                                                                                                                                                         106
 ......  Sodium persulfate........          5.1  UN1505               II  5.1.......                 A1  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Sodium phosphide.........          4.3  UN1432                I  4.3, 6.1..           A19, N40  None..........  211.......  None......    Forbidden        15 kg  E              40, 85
 ......  Sodium picramate, dry or          1.3C  UN0235               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 20                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  Sodium picramate, wetted           4.1  UN1349                I  4.1.......   23, A8, A19, N41  None..........  211.......  None......    Forbidden        15 kg  E              28, 36
          with not less than 20                                                                                                                                                                 
          percent water, by mass.                                                                                                                                                               
 ......  Sodium picryl peroxide...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Sodium potassium alloys,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Potassium sodium                                                                                                                                                                  
          alloys.                                                                                                                                                                               
 ......  Sodium selenate, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
D......  Sodium selenite..........          6.1  NA2630               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  E                    
 ......  Sodium sulfide, anhydrous          4.2  UN1385               II  4.2.......    A19, A20, B106,  None..........  212.......  241.......        15 kg        50 kg  A                    
          or Sodium sulfide with                                                                    N34                                                                                         
          less than 30 percent                                                                                                                                                                  
          water of crystallization.                                                                                                                                                             
 ......  Sodium sulfide, hydrated             8  UN1849               II  8.........                 T8  154...........  212.......  240.......        15 kg        50 kg  A                  26
          with not less than30                                                                                                                                                                  
          percent water.                                                                                                                                                                        
 ......  Sodium superoxide........          5.1  UN2547                I  5.1.......           A20, N34  None..........  211.......  None......    Forbidden        15 kg  E             13, 75,
                                                                                                                                                                                             106
 ......  Sodium tetranitride......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Solids containing                    8  UN3244               II  8.........                 49  154...........  212.......  240.......        15 kg        50 kg  B                  40
          corrosive liquid, n.o.s.                                                                                                                                                              
 ......  Solids containing                  4.1  UN3175               II  4.1.......                 47  151...........  212.......  240.......        15 kg        50 kg  B                    
          flammable liquid, n.o.s.                                                                                                                                                              
 ......  Solids containing toxic            6.1  UN3243               II  6.1.......                 48  None..........  212.......  240.......        25 kg       100 kg  B                  40
          liquid, n.o.s.                                                                                                                                                                        

[[Page 222]]

                                                                                                                                                                                                
 ......  Sounding devices,                 1.2F  UN0204               II   1.2F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          explosive.                                                                                                                                                                            
 ......  Sounding devices,                 1.1F  UN0296               II   1.1F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          explosive.                                                                                                                                                                            
 ......  Sounding devices,                 1.1D  UN0374               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          explosive.                                                                                                                                                                            
 ......  Sounding devices,                 1.2D  UN0375               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
          explosive.                                                                                                                                                                            
 ......  Spirits of salt, see       ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hydrochloric acid.                                                                                                                                                                    
 ......  Squibs, see Igniters etc.  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Stannic chloride,                    8  UN1827               II  8.........        B2, T8, T26  154...........  202.......  242.......          1 L         30 L  C                    
          anhydrous.                                                                                                                                                                            
 ......  Stannic chloride,                    8  UN2440               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
          pentahydrate.                                                I                                                                                                                        
 ......  Stannic phosphide........          4.3  UN1433                I  4.3, 6.1..     A19, B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E              40, 85
 ......  Steel swarf, see Ferrous   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          metal borings, etc.                                                                                                                                                                   
 ......  Stibine..................          2.3  UN2676                   2.3, 2.1..                  1  None..........  304.......  None......    Forbidden    Forbidden  D                  40
 ......  Storage batteries, wet,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Batteries, wet etc.                                                                                                                                                               
 ......  Strontium arsenite.......          6.1  UN1691               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Strontium chlorate.......          5.1  UN1506               II  5.1.......        A1, A9, N34  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Strontium nitrate........          5.1  UN1507               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Strontium perchlorate....          5.1  UN1508               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Strontium peroxide.......          5.1  UN1509               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             13, 75,
                                                                                                                                                                                             106
 ......  Strontium phosphide......          4.3  UN2013                I  4.3, 6.1..           A19, N40  None..........  211.......  None......    Forbidden        15 kg  E              40, 85
 ......  Strychnine or Strychnine           6.1  UN1692                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          salts.                                                                                                                                                                                
 ......  Styphnic acid, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Trinitroresorcinol, etc.                                                                                                                                                              
 ......  Styrene monomer,                     3  UN2055               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          inhibited.                                                   I                                                                                                                        
 ......  Substances, explosive,            1.1L  UN0357               II   1.1L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          n.o.s.                                                                                                                                                                            11E,
                                                                                                                                                                                             17E
 ......  Substances, explosive,            1.2L  UN0358               II   1.2L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          n.o.s.                                                                                                                                                                            11E,
                                                                                                                                                                                             17E
 ......  Substances, explosive,            1.3L  UN0359               II   1.3L.....                101  None..........  62........  None......    Forbidden    Forbidden  E             2E, 8E,
          n.o.s.                                                                                                                                                                            11E,
                                                                                                                                                                                             17E

[[Page 223]]

                                                                                                                                                                                                
 ......  Substances, explosive,            1.1A  UN0473               II   1.1A.....           101, 111  None..........  62........  None......    Forbidden    Forbidden  E              2E, 6E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.1C  UN0474               II   1.1C.....                101  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.1D  UN0475               II   1.1D.....                101  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.1G  UN0476               II   1.1G.....                101  None..........  62........  None......    Forbidden    Forbidden  E              1E, 8E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.3C  UN0477               II   1.3C.....                101  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.3G  UN0478               II   1.3G.....                101  None..........  62........  None......    Forbidden    Forbidden  E              1E, 8E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.4C  UN0479               II   1.4C.....                101  None..........  62........  None......    Forbidden        75 kg  A              1E, 5E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.4D  UN0480               II   1.4D.....                101  None..........  62........  None......    Forbidden        75 kg  A             1E, 5E,
          n.o.s.                                                                                                                                                                             24E
 ......  Substances, explosive,            1.4S  UN0481               II   1.4S.....                101  None..........  62........  None......        25 kg        75 kg  A                    
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.4G  UN0485               II   1.4G.....                101  None..........  62........  None......    Forbidden        75 kg  E              1E, 8E
          n.o.s.                                                                                                                                                                                
 ......  Substances, explosive,            1.5D  UN0482               II   1.5D.....                101  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          very insensitive,                                                                                                                                                                     
          n.o.s., or Substances,                                                                                                                                                                
          EVI, n.o.s.                                                                                                                                                                           
 ......  Substituted nitrophenol              3  UN2780                I  3, 6.1....                     None..........  201.......  243.......    Forbidden         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          flammable, toxic, flash                                                                                                                                                               
          point less than 23                                                                                                                                                                    
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....                     None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Substituted nitrophenol            6.1  UN3014                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Substituted nitrophenol            6.1  UN3013                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          pesticides, liquid,                                                                                                                                                                   
          toxic, flammable                                                                                                                                                                      
          flashpoint not less than                                                                                                                                                              
          23 degrees C.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....            B1, T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Substituted nitrophenol            6.1  UN2779                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          pesticides, solid, toxic.                                                                                                                                                             
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Sucrose octanitrate (dry)    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Sulfamic acid............            8  UN2967               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
D......  Sulfur...................            9  NA1350               II   9........             30, A1  None..........  None......  240.......        25 kg       100 kg  A              19, 74
                                                                       I                                                                                                                        
I......  Sulfur...................          4.1  UN1350               II  4.1.......    30, A1, N20, T1  None..........  None......  240.......        25 kg       100 kg  A              19, 74
                                                                       I                                                                                                                        
 ......  Sulfur and chlorate,         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          loose mixtures of.                                                                                                                                                                    
 ......  Sulfur chlorides.........            8  UN1828                I  8.........   5, A3, B10, B77,  None..........  201.......  243.......    Forbidden        2.5 L  C                  40
                                                                                          N34, T18, T27                                                                                         
 ......  Sulfur dichloride, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sulfur chlorides.                                                                                                                                                                     
 ......  Sulfur dioxide...........          2.3  UN1079                   2.3, 8....             3, B14  None..........  304.......  314, 315..    Forbidden        25 kg  D                  40
 ......  Sulfur dioxide solution,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Sulfurous acid.                                                                                                                                                                   
 ......  Sulfur hexafluoride......          2.2  UN1080                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
D......  Sulfur, molten...........            9  NA2448               II   9........            T9, T38  None..........  213.......  247.......    Forbidden    Forbidden  C                  61
                                                                       I                                                                                                                        
I......  Sulfur, molten...........          4.1  UN2448               II  4.1.......            T9, T38  None..........  213.......  247.......    Forbidden    Forbidden  C                  61
                                                                       I                                                                                                                        
 ......  Sulfur tetrafluoride.....          2.3  UN2418                   2.3, 8....                  1  None..........  302.......  245.......    Forbidden    Forbidden  D                  40

[[Page 224]]

                                                                                                                                                                                                
+......  Sulfur trioxide,                     8  UN1829                I  8, 6.1....    2, A7, B9, B14,  None..........  227.......  244.......    Forbidden        25 kg  A                  40
          inhibited or Sulfur                                                            B32, B49, B74,                                                                                         
          trioxide, stabilized.                                                          B77, N34, T38,                                                                                         
                                                                                               T43, T45                                                                                         
+, D...  Sulfur trioxide,                     8  NA1829                I  8, 6.1....    2, A7, B9, B14,  None..........  227.......  244.......    Forbidden        25 kg  C              10, 40
          uninhibited.                                                                   B32, B49, B74,                                                                                         
                                                                                         B77, N34, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Sulfuretted hydrogen, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hydrogen sulfide,                                                                                                                                                                     
          liquefied.                                                                                                                                                                            
 ......  Sulfuric acid, fuming                8  UN1831                I  8.........  A3, A7, B84, N34,  None..........  201.......  243.......    Forbidden        2.5 L  C              14, 40
          with less than 30                                                                    T18, T27                                                                                         
          percent free sulfur                                                                                                                                                                   
          trioxide.                                                                                                                                                                             
+......  Sulfuric acid, fuming                8  UN1831                I  8, 6.1....     2, A3, A6, A7,  None..........  227.......  244.......    Forbidden    Forbidden  C              14, 40
          with 30 percent or more                                                         B9, B14, B32,                                                                                         
          free sulfur trioxide.                                                          B74, B77, B84,                                                                                         
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Sulfuric acid, spent.....            8  UN1832               II  8.........   A3, A7, B2, B83,  None..........  202.......  242.......    Forbidden         30 L  C                  14
                                                                                      B84, N34, T9, T27                                                                                         
 ......  Sulfuric acid with more              8  UN1830               II  8.........   A3, A7, B3, B83,  154...........  202.......  242.......          1 L         30 L  C                  14
          than 51 percent acid.                                                       B84, N34, T9, T27                                                                                         
 ......  Sulfuric acid with not               8  UN2796               II  8.........   A3, A7, B2, B15,  154...........  202.......  242.......          1 L         30 L  B                    
          more than 51% acid.                                                          N6, N34, T9, T27                                                                                         
 ......  Sulfuric and hydrofluoric  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          acid mixtures, see                                                                                                                                                                    
          Hydrofluoric and                                                                                                                                                                      
          sulfuric acid mixtures.                                                                                                                                                               
 ......  Sulfuric anhydride, see    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Sulfur trioxide,                                                                                                                                                                      
          inhibited.                                                                                                                                                                            
 ......  Sulfurous acid...........            8  UN1833               II  8.........             B3, T8  154...........  202.......  242.......          1 L         30 L  B                  40
+......  Sulfuryl chloride........            8  UN1834                I  8, 6.1....     1, A3, B6, B9,  None..........  226.......  244.......    Forbidden    Forbidden  C                  40
                                                                                         B10, B14, B30,                                                                                         
                                                                                         B74, B77, N34,                                                                                         
                                                                                          T38, T43, T44                                                                                         
 ......  Sulfuryl fluoride........          2.3  UN2191                   2.3.......                  4  None..........  304.......  314, 315..    Forbidden        25 kg  D                  40
 ......  Tars, liquid including               3  UN1999               II  3.........       B13, T7, T30  150...........  202.......  242.......          5 L         60 L  B                    
          road asphalt and oils,                                                                                                                                                                
          bitumen and cut backs.                                                                                                                                                                
         .........................  ...........  ...................  II  3.........   B1, B13, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tear gas candles.........          6.1  UN1700               II  6.1, 4.1..                     None..........  340.......  None......    Forbidden        50 kg  D                  40

[[Page 225]]

                                                                                                                                                                                                
 ......  Tear gas cartridges, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Ammunition, tear-                                                                                                                                                                     
          producing, etc.                                                                                                                                                                       
D......  Tear gas devices with              6.1  NA1693                I  6.1.......                     None..........  340.......  None......    Forbidden    Forbidden  D                  40
          more than 2 percent tear                                                                                                                                                              
          gas substances, by mass.                                                                                                                                                              
         .........................  ...........  ...................  II  6.1.......                     None..........  340.......  None......    Forbidden    Forbidden  D                  40
 ......  Tear gas devices, with     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          not more than 2 percent                                                                                                                                                               
          tear gas substances, by                                                                                                                                                               
          mass, see Aerosols, etc.                                                                                                                                                              
 ......  Tear gas grenades, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tear gas candles.                                                                                                                                                                     
 ......  Tear gas substances,               6.1  UN1693                I  6.1.......                     None..........  201.......  None......    Forbidden    Forbidden  D                  40
          liquid, n.o.s.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                     None..........  202.......  None......    Forbidden          5 L  D                  40
 ......  Tear gas substances,               6.1  UN1693                I  6.1.......                     None..........  211.......  None......    Forbidden    Forbidden  D                  40
          solid, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  None......    Forbidden        25 kg  D                  40
 ......  Tellurium compound, n.o.s          6.1  UN3284                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  B                    
         .........................  ...........  ...................  II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  B                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Tellurium hexafluoride...          2.3  UN2195                   2.3, 8....                  1  None..........  302.......  None......    Forbidden    Forbidden  D                  40
 ......  Terpene hydrocarbons,                3  UN2319               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          n.o.s.                                                       I                                                                                                                        
 ......  Terpinolene..............            3  UN2541               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tetraazido benzene           Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          quinone.                                                                                                                                                                              
 ......  Tetrabromoethane.........          6.1  UN2504               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tetrachloroethane........          6.1  UN1702               II  6.1.......           N36, T14  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Tetrachloroethylene......          6.1  UN1897               II  6.1.......            N36, T1  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Tetraethyl                         6.1  UN1704               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  D                  40
          dithiopyrophosphate.                                                                                                                                                                  
D......  Tetraethyl lead, liquid..          6.1  NA1649                I  6.1, 3....                     None..........  201.......  None......    Forbidden    Forbidden  E                  40
D......  Tetraethyl pyrophosphate,          6.1  NA3018                I  6.1.......                     None..........  201.......  243.......    Forbidden          1 L  A                  40
          liquid.                                                                                                                                                                               
D......  Tetraethyl pyrophosphate           6.1  NA2783                I  6.1.......                N77  None..........  211.......  242.......    Forbidden        50 kg  A                  40
          solid.                                                                                                                                                                                
 ......  Tetraethyl silicate......            3  UN1292               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tetraethylammonium           Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          perchlorate (dry).                                                                                                                                                                    
 ......  Tetraethylenepentamine...            8  UN2320               II  8.........                 T2  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  1,1,1,2-Tetrafluoroethane          2.2  UN3159                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
           or Refrigerant gas R                                                                                                                                                                 
          134a.                                                                                                                                                                                 
 ......  Tetrafluoroethylene,               2.1  UN1081                   2.1.......                     306...........  304.......  None......    Forbidden       150 kg  E                  40
          inhibited.                                                                                                                                                                            
 ......  Tetrafluoromethane,                2.2  UN1982                   2.2.......                     None..........  302.......  None......        75 kg       150 kg  A                    
          compressedor Refrigerant                                                                                                                                                              
          gas R 14.                                                                                                                                                                             
 ......  1,2,3,6-                             3  UN2498               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
          Tetrahydrobenzaldehyde.                                      I                                                                                                                        
 ......  Tetrahydrofuran..........            3  UN2056               II  3.........                 T8  None..........  202.......  242.......          5 L         60 L  B                    
 ......  Tetrahydrofurfurylamine..            3  UN2943               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tetrahydrophthalic                   8  UN2698               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
          anhydrides with more                                         I                                                                                                                        
          than 0.05 percent of                                                                                                                                                                  
          maleic anhydride.                                                                                                                                                                     
 ......  1,2,3,6-                             3  UN2410               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
          Tetrahydropyridine.                                                                                                                                                                   
 ......  Tetrahydrothiophene......            3  UN2412               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Tetramethylammonium                  8  UN1835               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  A                    
          hydroxide.                                                                                                                                                                            
 ......  Tetramethylene diperoxide    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dicarbamide.                                                                                                                                                                          

[[Page 226]]

                                                                                                                                                                                                
 ......  Tetramethylsilane........            3  UN2749                I  3.........           T21, T26  None..........  201.......  243.......    Forbidden         30 L  D                    
 ......  Tetranitro diglycerin....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Tetranitroaniline........         1.1D  UN0207               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
+......  Tetranitromethane........          5.1  UN1510                I  5.1, 6.1..   2, B9, B14, B32,  None..........  227.......  None......    Forbidden    Forbidden  D             40, 66,
                                                                                         B74, T38, T43,                                                                                      106
                                                                                                    T45                                                                                         
 ......  2,3,4,6-Tetranitrophenol.    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  2,3,4,6-Tetranitrophenyl     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          methyl nitramine.                                                                                                                                                                     
 ......  2,3,4,6-                     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Tetranitrophenylnitramin                                                                                                                                                              
          e.                                                                                                                                                                                    
 ......  Tetranitroresorcinol         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          (dry).                                                                                                                                                                                
 ......  2,3,5,6-Tetranitroso-1,4-    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          dinitrobenzene.                                                                                                                                                                       
 ......  2,3,5,6-Tetranitroso         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitrobenzene (dry).                                                                                                                                                                   
 ......  Tetrapropylorthotitanate.            3  UN2413               II  3.........             B1, T8  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tetrazene, see Guanyl      ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitrosaminoguanyltetraze                                                                                                                                                              
          ne.                                                                                                                                                                                   
 ......  Tetrazine (dry)..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Tetrazol-1-acetic acid...         1.4C  UN0407               II   1.4C.....                     None..........  62........  None......    Forbidden        75 kg  A             1E, 5E,
                                                                                                                                                                                             24E
 ......  Tetrazolyl azide (dry)...    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Tetryl, see                ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Trinitrophenylmethylnitr                                                                                                                                                              
          amine.                                                                                                                                                                                
 ......  Thallium chlorate........          5.1  UN2573               II  5.1, 6.1..                     None..........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Thallium compounds, n.o.s          6.1  UN1707               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Thallium nitrate.........          6.1  UN2727               II  6.1, 5.1..                     None..........  212.......  242.......         5 kg        25 kg  A                    
D......  Thallium sulfate, solid..          6.1  NA1707               II  6.1.......                     None..........  212.......  242.......         5 kg        50 kg  A                    
 ......  4-Thiapentanal...........          6.1  UN2785               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  D              25, 49
                                                                       I                                                                                                                        
 ......  Thioacetic acid..........            3  UN2436               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Thiocarbonylchloride, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Thiophosgene.                                                                                                                                                                         
 ......  Thioglycol...............          6.1  UN2966               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                    
 ......  Thioglycolic acid........            8  UN1940               II  8.........    A7, B2, N34, T8  154...........  202.......  242.......          1 L         30 L  A                    
 ......  Thiolactic acid..........          6.1  UN2936               II  6.1.......                 T8  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Thionyl chloride.........            8  UN1836                I  8.........  A7, B6, B10, N34,  None..........  201.......  243.......    Forbidden    Forbidden  C                  40
                                                                                               T18, T27                                                                                         

[[Page 227]]

                                                                                                                                                                                                
 ......  Thiophene................            3  UN2414               II  3.........           B101, T2  150...........  202.......  242.......          5 L         60 L  B                  40
+......  Thiophosgene.............          6.1  UN2474               II  6.1.......    2, A7, B9, B14,  None..........  227.......  244.......    Forbidden         60 L  B              26, 40
                                                                                         B32, B74, N33,                                                                                         
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Thiophosphoryl chloride..            8  UN1837               II  8.........    A3, A7, B2, B8,  None..........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                        B25, B101, N34,                                                                                         
                                                                                                    T12                                                                                         
 ......  Thorium metal, pyrophoric            7  UN2975                   7, 4.2....                     None..........  418.......  None......    Forbidden    Forbidden  D                    
 ......  Thorium nitrate, solid...            7  UN2976                   7, 5.1....                     None..........  419.......  None......    Forbidden        15 kg  A                    
 ......  Tin chloride, fuming, see  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Stannic chloride,                                                                                                                                                                     
          anhydrous.                                                                                                                                                                            
 ......  Tin perchloride or Tin     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          tetrachloride, see                                                                                                                                                                    
          Stannic chloride,                                                                                                                                                                     
          anhydrous.                                                                                                                                                                            
 ......  Tinctures, medicinal.....            3  UN1293               II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tinning flux, see Zinc     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          chloride.                                                                                                                                                                             
 ......  Titanium disulphide......          4.2  UN3174               II  4.2.......                     None..........  213.......  241.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Titanium hydride.........          4.1  UN1871               II  4.1.......      A19, A20, N34  None..........  212.......  241.......        15 kg        50 kg  E                    
 ......  Titanium powder, dry.....          4.2  UN2546                I  4.2.......                     None..........  211.......  242.......    Forbidden    Forbidden  D                    
         .........................  ...........  ...................  II  4.2.......  A19, A20, N5, N34  None..........  212.......  241.......        15 kg        50 kg  D                    
         .........................  ...........  ...................  II  4.2.......                     None..........  213.......  241.......        25 kg       100 kg  D                    
                                                                       I                                                                                                                        
 ......  Titanium powder, wetted            4.1  UN1352               II  4.1.......      A19, A20, N34  None..........  212.......  240.......        15 kg        50 kg  E                    
          with not less than 25                                                                                                                                                                 
          percent water (a visible                                                                                                                                                              
          excess of water must be                                                                                                                                                               
          present) (a)                                                                                                                                                                          
          mechanically produced,                                                                                                                                                                
          particle size less than                                                                                                                                                               
          53 microns; (b)                                                                                                                                                                       
          chemically produced,                                                                                                                                                                  
          particle size less than                                                                                                                                                               
          840 microns.                                                                                                                                                                          
 ......  Titanium sponge granules           4.1  UN2878               II  4.1.......                 A1  None..........  213.......  240.......        25 kg       100 kg  D                    
          or Titanium sponge                                           I                                                                                                                        
          powders.                                                                                                                                                                              
D......  Titanium sulfate solution            8  NA1760               II  8.........            B2, B15  None..........  202.......  242.......          1 L         30 L  B                  40
+......  Titanium tetrachloride...            8  UN1838               II  8, 6.1....     2, A3, A6, B7,  None..........  227.......  244.......    Forbidden         30 L  C                  40
                                                                                          B9, B14, B32,                                                                                         
                                                                                         B74, B77, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Titanium trichloride                 8  UN2869               II  8.........      A7, B106, N34  154...........  212.......  240.......        15 kg        50 kg  A                  40
          mixtures.                                                                                                                                                                             
         .........................  ...........  ...................  II  8.........            A7, N34  154...........  213.......  240.......        25 kg       100 kg  A                  40
                                                                       I                                                                                                                        
 ......  Titanium trichloride,              4.2  UN2441                I  4.2, 8....  A7, A8, A19, A20,  None..........  181.......  244.......    Forbidden    Forbidden  D                  40
          pyrophoric or Titanium                                                                    N34                                                                                         
          trichloride mixtures,                                                                                                                                                                 
          pyrophoric.                                                                                                                                                                           
 ......  TNT mixed with aluminum,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Tritonal.                                                                                                                                                                         
 ......  TNT, see Trinitrotoluene,  ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          etc.                                                                                                                                                                                  
 ......  Toluene..................            3  UN1294               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Toluene diisocyanate.....          6.1  UN2078               II  6.1.......          B110, T14  None..........  202.......  243.......          5 L         60 L  D              25, 40
 ......  Toluene sulfonic acid,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Alkyl, or Aryl                                                                                                                                                                    
          sulfonic acid etc.                                                                                                                                                                    
 ......  Toluidines liquid........          6.1  UN1708               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    

[[Page 228]]

                                                                                                                                                                                                
 ......  Toluidines solid.........          6.1  UN1708               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  2,4-Toluylenediamine or            6.1  UN1709               II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
          2,4-Toluenediamine.                                          I                                                                                                                        
 ......  Torpedoes, liquid fueled,         1.3J  UN0450               II   1.3J.....                      .............  62........  None......    Forbidden    Forbidden  E                 7E,
          with inert head.                                                                                                                                                                  16E,
                                                                                                                                                                                             23E
 ......  Torpedoes, liquid fueled,         1.1J  UN0449               II   1.1J.....                      .............  62........  None......    Forbidden    Forbidden  E                 7E,
          with or without bursting                                                                                                                                                          16E,
          charge.                                                                                                                                                                            23E
 ......  Torpedoes with bursting           1.1E  UN0329               II   1.1E.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          charge.                                                                                                                                                                               
 ......  Torpedoes with bursting           1.1F  UN0330               II   1.1F.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          charge.                                                                                                                                                                               
 ......  Torpedoes with bursting           1.1D  UN0451               II   1.1D.....                      .............  62........  None......    Forbidden    Forbidden  B                    
          charge.                                                                                                                                                                               
 ......  Toxic liquid, corrosive,           6.1  UN3289                I  6.1, 8....                T42  None..........  201.......  243.......        0.5 L        2.5 L  A                    
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  6.1, 8....                T14  None..........  202.......  243.......          1 L         30 L  A                    
 ......  Toxic liquid, corrosive,           6.1  UN3289                I  6.1, 8....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  B                  40
          inorganic, n.o.s.                                                              B72, T38, T43,                                                                                         
          Inhalation Hazard,                                                                        T44                                                                                         
          Packing Group I, Zone A.                                                                                                                                                              
 ......  Toxic liquid, corrosive,           6.1  UN3289                I  6.1, 8....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  B                  40
          inorganic, n.o.s.                                                              B74, T38, T43,                                                                                         
          Inhalation Hazard,                                                                        T45                                                                                         
          Packing Group I, Zone B.                                                                                                                                                              
 ......  Toxic liquid, inorganic,           6.1  UN3287                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  A                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......          B110, T14  None..........  202.......  243.......          5 L         60 L  A                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Toxic liquid, inorganic,           6.1  UN3287                I  6.1.......   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  B                  40
          n.o.s. Inhalation                                                              B72, T38, T43,                                                                                         
          Hazard, Packing Group I,                                                                  T44                                                                                         
          Zone A.                                                                                                                                                                               
 ......  Toxic liquid, inorganic,           6.1  UN3287                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  B                  40
          n.o.s. Inhalation                                                              B74, T38, T43,                                                                                         
          Hazard, Packing Group I,                                                                  T45                                                                                         
          Zone B.                                                                                                                                                                               
 ......  Toxic liquids, corrosive,          6.1  UN2927                I  6.1, 8....                T42  None..........  201.......  243.......        0.5 L        2.5 L  B                  40
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  6.1, 8....                T42  None..........  202.......  243.......          1 L         30 L  B                  40
 ......  Toxic liquids, corrosive,          6.1  UN2927                I  6.1, 8....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D             20, 40,
          organic, n.o.s.,                                                               B72, T38, T43,                                                                                       95
          inhalation hazard,                                                                        T44                                                                                         
          Packing Group I, Zone A.                                                                                                                                                              
 ......  Toxic liquids, corrosive,          6.1  UN2927                I  6.1, 8....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
          organic, n.o.s.,                                                               B74, T38, T43,                                                                                       95
          inhalation hazard,                                                                        T45                                                                                         
          Packing Group I, Zone B.                                                                                                                                                              

[[Page 229]]

                                                                                                                                                                                                
 ......  Toxic liquids, flammable,          6.1  UN2929                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  6.1, 3....                T15  None..........  202.......  243.......          5 L         60 L  B                  40
 ......  Toxic liquids, flammable,          6.1  UN2929                I  6.1, 3....   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D             20, 40,
          organic, n.o.s.,                                                               B72, T38, T43,                                                                                       95
          inhalation hazard,                                                                        T44                                                                                         
          Packing Group I, Zone A.                                                                                                                                                              
 ......  Toxic liquids, flammable,          6.1  UN2929                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
          organic, n.o.s.,                                                               B74, T38, T43,                                                                                       95
          inhalation hazard,                                                                        T45                                                                                         
          Packing Group I, Zone B.                                                                                                                                                              
 ......  Toxic, liquids, organic,           6.1  UN2810                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......          B110, T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Toxic, liquids, organic,           6.1  UN2810                I  6.1.......   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  D             20, 40,
          n.o.s. Inhalation                                                              B72, T38, T43,                                                                                       95
          hazard, Packing Group I,                                                                  T44                                                                                         
          Zone A.                                                                                                                                                                               
 ......  Toxic, liquids, organic,           6.1  UN2810                I  6.1.......   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  D             20, 40,
          n.o.s. Inhalation                                                              B74, T38, T43,                                                                                       95
          hazard, Packing Group I,                                                                  T45                                                                                         
          Zone B.                                                                                                                                                                               
 ......  Toxic liquids, oxidizing,          6.1  UN3122                I  6.1, 5.1..                 A4  None..........  201.......  243.......    Forbidden        2.5 L  C                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1, 5.1..                     None..........  202.......  243.......          1 L          5 L  C                    
 ......  Toxic liquids, oxidizing,          6.1  UN3122                I  6.1, 5.1..   1, B9, B14, B30,  None..........  226.......  244.......    Forbidden    Forbidden  C                    
          n.o.s. Inhalation                                                              B72, T38, T43,                                                                                         
          hazard, Packing Group I,                                                                  T44                                                                                         
          Zone A.                                                                                                                                                                               
 ......  Toxic liquids, oxidizing,          6.1  UN3122                I  6.1, 5.1..   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  C                    
          n.o.s. Inhalation                                                               T38, T43, T45                                                                                         
          Hazard, Packing Group I,                                                                                                                                                              
          Zone B.                                                                                                                                                                               
 ......  Toxic liquids, water-              6.1  UN3123                I  6.1, 4.3..                 A4  None..........  201.......  243.......    Forbidden          1 L  E                  40
          reactive, n.o.s.                                                                                                                                                                      
         .........................  ...........  ...................  II  6.1, 4.3..                     None..........  202.......  243.......          1 L          5 L  E                  40
 ......  Toxic liquids, water-              6.1  UN3123                I  6.1, 4.3..   1, B9, B14, B30,   None.........  226.......  244.......    Forbidden    Forbidden  E                  40
          reactive, n.o.s.                                                               B72, T38, T43,                                                                                         
          Inhalation hazard,                                                                        T44                                                                                         
          packing group I, Zone A.                                                                                                                                                              
 ......  Toxic liquids, water-              6.1  UN3123                I  6.1, 4.3..   2, B9, B14, B32,   None.........  227.......  244.......    Forbidden    Forbidden  E                  40
          reactive, n.o.s.                                                               B74, T38, T43,                                                                                         
          Inhalation hazard,                                                                        T45                                                                                         
          packing group I, Zone B.                                                                                                                                                              
 ......  Toxic solid, corrosive,            6.1  UN3290                I  6.1, 8....                     None..........  211.......  242.......         1 kg        25 kg  A                    
          inorganic, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  6.1, 8....                     None..........  212.......  242.......        15 kg        50 kg  A                    
 ......  Toxic solid, inorganic,            6.1  UN3288                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Toxic solids, corrosive,           6.1  UN2928                I  6.1, 8....                     None..........  211.......  242.......         1 kg        25 kg  B                  40
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  6.1, 8....                     None..........  212.......  242.......        15 kg        50 kg  B                  40
 ......  Toxic solids, flammable,           6.1  UN2930                I  6.1, 4.1..               B106  None..........  211.......  242.......         1 kg        15 kg  B                    
          organic, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  6.1, 4.1..               B106  None..........  212.......  242.......        15 kg        50 kg  B                    

[[Page 230]]

                                                                                                                                                                                                
 ......  Toxic solids, organic,             6.1  UN2811                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  B                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  B                    
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Toxic solids, oxidizing,           6.1  UN3086                I  6.1, 5.1..                     None..........  211.......  242.......         1 kg        15 kg  C                    
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  6.1, 5.1..                     None..........  212.......  242.......        15 kg        50 kg  C                    
 ......  Toxic solids, self-                6.1  UN3124                I  6.1, 4.2..           A5, B100  None..........  211.......  242.......         5 kg        15 kg  D                  40
          heating, n.o.s.                                                                                                                                                                       
         .........................  ...........  ...................  II  6.1, 4.2..                     None..........  212.......  242.......        15 kg        50 kg  D                  40
 ......  Toxic solids, water-               6.1  UN3125                I  6.1, 4.3..           A5, B100  None..........  211.......  242.......         5 kg        15 kg  D                  40
          reactive, n.o.s.                                                                                                                                                                      
         .........................  ...........  ...................  II  6.1, 4.3..               B101  None..........  212.......  242.......        15 kg        50 kg  D                  40
D......  Toy Caps.................         1.4S  NA0337               II   1.4S.....                     None..........  62........  None......        25 kg       100 kg  A                  9E
 ......  Tracers for ammunition...         1.3G  UN0212               II   1.3G.....                     None..........  62........  None......    Forbidden    Forbidden  B                    
 ......  Tracers for ammunition...         1.4G  UN0306               II   1.4G.....                     None..........  62........  None......    Forbidden        75 kg  A                 24E
 ......  Tractors, see Vehicles,    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          self propelled.                                                                                                                                                                       
 ......  Tri-(b-nitroxyethyl)         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          ammonium nitrate.                                                                                                                                                                     
 ......  Triallyl borate..........          6.1  UN2609               II  6.1.......                     153...........  203.......  241.......         60 L        220 L  A                  13
                                                                       I                                                                                                                        
 ......  Triallylamine............            3  UN2610               II  3, 8......             B1, T1  None..........  203.......  242.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Triazine pesticides,                 3  UN2764                I  3, 6.1....  .................  None..........  201.......  243.......    Forbidden         30 L  B                  40
          flammable, toxic, flash                                                                                                                                                               
          point less than 23                                                                                                                                                                    
          degrees C.                                                                                                                                                                            
         .........................  ...........  ...................  II  3, 6.1....  .................  None..........  202.......  243.......          1 L         60 L  B                  40
 ......  Triazine pesticides,               6.1  UN2998                I  6.1.......                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic.                                                                                                                                                                        
         .........................  ...........  ...................  II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1.......                T14  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Triazine pesticides,               6.1  UN2997                I  6.1, 3....                T42  None..........  201.......  243.......          1 L         30 L  B                  40
          liquid, toxic,                                                                                                                                                                        
          flammable, flashpoint                                                                                                                                                                 
          not less than 23 degrees                                                                                                                                                              
          C.                                                                                                                                                                                    
         .........................  ...........  ...................  II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  B                  40
         .........................  ...........  ...................  II  6.1, 3....                T14  153...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Triazine pesticides,               6.1  UN2763                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  40
          solid, toxic.                                                                                                                                                                         
         .........................  ...........  ...................  II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                  40
         .........................  ...........  ...................  II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  40
                                                                       I                                                                                                                        
 ......  Tributylamine............          6.1  UN2542               II  6.1.......          B110, T14  None..........  202.......  243.......          5 L         60 L  A             .......
 ......  Tributylphosphane........          4.2  UN3254                I  4.2.......                     None..........  211.......  242.......    Forbidden    Forbidden  D                    

[[Page 231]]

                                                                                                                                                                                                
D......  mono-(Trichloro) tetra-            5.1  NA2468               II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  A                  13
          (monopotassium dichloro)-                                                                                                                                                             
          penta-s-triazinetrione,                                                                                                                                                               
          dry (with more than 39                                                                                                                                                                
          percent available                                                                                                                                                                     
          chlorine).                                                                                                                                                                            
 ......  Trichloro-s-               ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          triazinetrione dry, with                                                                                                                                                              
          more than 39 percent                                                                                                                                                                  
          available chlorine, see                                                                                                                                                               
          Trichloroisocyanuric                                                                                                                                                                  
          acid, dry.                                                                                                                                                                            
 ......  Trichloroacetic acid.....            8  UN1839               II  8.........            A7, N34  154...........  212.......  240.......        15 kg        50 kg  A                    
 ......  Trichloroacetic acid,                8  UN2564               II  8.........    A3, A6, A7, B2,  154...........  202.......  242.......          1 L         30 L  B                    
          solution.                                                                             N34, T8                                                                                         
         .........................  ...........  ...................  II  8.........   A3, A6, A7, N34,  154...........  203.......  241.......          5 L         60 L  B                   8
                                                                       I                             T7                                                                                         
+......  Trichloroacetyl chloride.            8  UN2442               II  8, 6.1....     2, A3, A7, B9,  None..........  227.......  244.......    Forbidden    Forbidden  D                  40
                                                                                         B14, B32, B74,                                                                                         
                                                                                         N34, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Trichlorobenzenes, liquid          6.1  UN2321               II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Trichlorobutene..........          6.1  UN2322               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A              25, 40
 ......  1,1,1-Trichloroethane....          6.1  UN2831               II  6.1.......            N36, T7  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Trichloroethylene........          6.1  UN1710               II  6.1.......            N36, T1  153...........  203.......  241.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Trichloroisocyanuric               5.1  UN2468               II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  A                  13
          acid, dry.                                                                                                                                                                            
 ......  Trichloromethyl              Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          perchlorate.                                                                                                                                                                          
 ......  Trichlorosilane..........          4.3  UN1295                I  4.3, 3, 8.  A7, N34, T24, T26  None..........  201.......  244.......    Forbidden    Forbidden  D             21, 28,
                                                                                                                                                                                         40, 49,
                                                                                                                                                                                             100
 ......  Tricresyl phosphate with           6.1  UN2574               II  6.1.......   A3, N33, N34, T8  None..........  202.......  243.......          5 L         60 L  A                    
          more than 3 percent                                                                                                                                                                   
          ortho isomer.                                                                                                                                                                         
 ......  Triethyl phosphite.......            3  UN2323               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Triethylamine............            3  UN1296               II  3, 8......           B101, T8  None..........  202.......  243.......          1 L          5 L  B                  40
 ......  Triethylenetetramine.....            8  UN2259               II  8.........             B2, T8  154...........  202.......  242.......          1 L         30 L  B                  40
 ......  Trifluoroacetic acid.....            8  UN2699                I  8.........    A3, A6, A7, B4,  None..........  201.......  243.......        0.5 L        2.5 L  B              12, 40
                                                                                      N3, N34, T18, T27                                                                                         
 ......  Trifluoroacetyl chloride.          2.3  UN3057                   2.3, 8....         2, B9, B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
 ......  Trifluorochloroethylene,           2.3  UN1082               ..  2.3, 2.1..              3,B14  None..........  304.......  314, 315..    Forbidden    Forbidden  D                  40
          inhibited.                                                                                                                                                                            
 ......  1,1,1-Trifluoroethane,             2.1  UN2035                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
          compressedor Refrigerant                                                                                                                                                              
          gas R 143a.                                                                                                                                                                           
 ......  Trifluoromethane or                2.2  UN1984                   2.2.......                     306...........  304.......  314, 315..        75 kg       150 kg  A                    
          Refrigerant gas R 23.                                                                                                                                                                 
 ......  Trifluoromethane,                  2.2  UN3136                   2.2.......                     306...........  None......  314, 315..        50 kg       500 kg  D                    
          refrigerated liquid.                                                                                                                                                                  
 ......  2-Trifluoromethylaniline.          6.1  UN2942               II  6.1.......                     153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  3-Trifluoromethylaniline.          6.1  UN2948               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                  40
 ......  Triformoxime trinitrate..    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Triisobutylene...........            3  UN2324               II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Triisopropyl borate......            3  UN2616               II  3.........            T8, T31  150...........  202.......  242.......          5 L         60 L  A                    
         .........................  ...........  ...................  II  3.........        B1, T8, T31  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        

[[Page 232]]

                                                                                                                                                                                                
D......  Trimethoxysilane.........          6.1  NA9269                I  6.1, 3....   2, B9, B14, B32,  None..........  227.......  244.......    Forbidden    Forbidden  E                  40
                                                                                         B74, T38, T43,                                                                                         
                                                                                                    T45                                                                                         
 ......  Trimethyl borate.........            3  UN2416               II  3.........                T14  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Trimethyl phosphite......            3  UN2329               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  1,3,5-Trimethyl-2,4,6-       Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trinitrobenzene.                                                                                                                                                                      
 ......  Trimethylacetyl chloride.          6.1  UN2438                I  6.1, 8, 3.     2, A3, A6, A7,  None..........  227.......  244.......    Forbidden    Forbidden  D              25, 40
                                                                                      B3, B9, B14, B32,                                                                                         
                                                                                         B74, N34, T38,                                                                                         
                                                                                               T43, T45                                                                                         
 ......  Trimethylamine, anhydrous          2.1  UN1083                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Trimethylamine, aqueous              3  UN1297                I  3, 8......                T42  None..........  201.......  243.......        0.5 L        2.5 L  D              40, 41
          solutions with not more                                                                                                                                                               
          than 50 percent                                                                                                                                                                       
          trimethylamine by mass.                                                                                                                                                               
         .........................  ...........  ...................  II  3, 8......            B1, T14  None..........  202.......  243.......          1 L          5 L  B              40, 41
         .........................  ...........  ...................  II  3, 8......                 B1  150...........  203.......  242.......          5 L         60 L  A              40, 41
                                                                       I                                                                                                                        
 ......  1,3,5-Trimethylbenzene...            3  UN2325               II  3.........             B1, T1  None..........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Trimethylchlorosilane....            3  UN1298               II  3, 8......  A3, A7, B77, N34,  None..........  202.......  243.......          1 L          5 L  E                  40
                                                                                               T14, T26                                                                                         
 ......  Trimethylcyclohexylamine.            8  UN2326               II  8.........                 T2  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Trimethylene glycol          Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          diperchlorate.                                                                                                                                                                        
 ......  Trimethylhexamethylene             6.1  UN2328               II  6.1.......                 T8  153...........  203.......  241.......         60 L        220 L  B                    
          diisocyanate.                                                I                                                                                                                        
 ......  Trimethylhexamethylenedia            8  UN2327               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
          mines.                                                       I                                                                                                                        
 ......  Trimethylol nitromethane     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trinitrate.                                                                                                                                                                           
 ......  Trinitro-meta-cresol.....         1.1D  UN0216               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  2,4,6-Trinitro-1,3-          Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          diazobenzene.                                                                                                                                                                         
 ......  2,4,6-Trinitro-1,3,5-        Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          triazido benzene (dry).                                                                                                                                                               
 ......  Trinitroacetic acid......    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Trinitroacetonitrile.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Trinitroamine cobalt.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Trinitroaniline or                1.1D  UN0153               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Picramide.                                                                                                                                                                            
 ......  Trinitroanisole..........         1.1D  UN0213               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Trinitrobenzene, dry or           1.1D  UN0214               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 30                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               

[[Page 233]]

                                                                                                                                                                                                
 ......  Trinitrobenzene, wetted            4.1  UN1354                I  4.1.......   23, A2, A8, A19,  None..........  211.......  None......       0.5 kg       0.5 kg  E                  28
          with not less than 30                                                                     N41                                                                                         
          percent water, by mass.                                                                                                                                                               
 ......  Trinitrobenzenesulfonic           1.1D  UN0386               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  E              1E, 5E
          acid.                                                                                                                                                                                 
 ......  Trinitrobenzoic acid, dry         1.1D  UN0215               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          or wetted with less than                                                                                                                                                              
          30 percent water, by                                                                                                                                                                  
          mass.                                                                                                                                                                                 
 ......  Trinitrobenzoic acid,              4.1  UN1355                I  4.1.......   23, A2, A8, A19,  None..........  211.......  None......       0.5 kg       0.5 kg  E                  28
          wetted with not less                                                                      N41                                                                                         
          than 30 percent water,                                                                                                                                                                
          by mass.                                                                                                                                                                              
 ......  Trinitrochlorobenzene or          1.1D  UN0155               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Picryl chloride.                                                                                                                                                                      
 ......  Trinitroethanol..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Trinitroethylnitrate.....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Trinitrofluorenone.......         1.1D  UN0387               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Trinitromethane..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  1,3,5-Trinitronaphthalene    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Trinitronaphthalene......         1.1D  UN0217               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Trinitrophenetole........         1.1D  UN0218               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Trinitrophenol or Picric          1.1D  UN0154               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          acid, dry or wetted with                                                                                                                                                              
          less than 30 percent                                                                                                                                                                  
          water, by mass.                                                                                                                                                                       
 ......  Trinitrophenol, wetted             4.1  UN1344                I  4.1.......   23, A8, A19, N41  None..........  211.......  None......         1 kg        15 kg  E              28, 36
          with not less than 30                                                                                                                                                                 
          percent water, by mass.                                                                                                                                                               
 ......  2,4,6-Trinitrophenyl         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          guanidine (dry).                                                                                                                                                                      
 ......  2,4,6-Trinitrophenyl         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitramine.                                                                                                                                                                            
 ......  2,4,6-Trinitrophenyl         Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          trimethylol methyl                                                                                                                                                                    
          nitramine trinitrate                                                                                                                                                                  
          (dry).                                                                                                                                                                                
 ......  Trinitrophenylmethylnitra         1.1D  UN0208               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          mine or Tetryl.                                                                                                                                                                       
 ......  Trinitroresorcinol or             1.1D  UN0219               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Styphnic acid, dry or                                                                                                                                                                 
          wetted with less than 20                                                                                                                                                              
          percent water, or                                                                                                                                                                     
          mixture of alcohol and                                                                                                                                                                
          water, by mass.                                                                                                                                                                       
 ......  Trinitroresorcinol,               1.1D  UN0394               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted or Styphnic acid,                                                                                                                                                              
          wetted with not less                                                                                                                                                                  
          than 20 percent water,                                                                                                                                                                
          or mixture of alcohol                                                                                                                                                                 
          and water by mass.                                                                                                                                                                    
 ......  2,4,6-Trinitroso-3-methyl    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitraminoanisole.                                                                                                                                                                     
 ......  Trinitrotetramine cobalt     Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          nitrate.                                                                                                                                                                              
 ......  Trinitrotoluene and               1.1D  UN0388               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          Trinitrobenzene mixtures                                                                                                                                                              
          or TNT and                                                                                                                                                                            
          trinitrobenzene mixtures                                                                                                                                                              
          or TNT and                                                                                                                                                                            
          hexanitrostilbene                                                                                                                                                                     
          mixtures or                                                                                                                                                                           
          Trinitrotoluene and                                                                                                                                                                   
          hexanitrostilnene                                                                                                                                                                     
          mixtures.                                                                                                                                                                             
 ......  Trinitrotoluene mixtures          1.1D  UN0389               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          containing                                                                                                                                                                            
          Trinitrobenzene and                                                                                                                                                                   
          Hexanitrostilbene or TNT                                                                                                                                                              
          mixtures containing                                                                                                                                                                   
          trinitrobenzene and                                                                                                                                                                   
          hexanitrostilbene.                                                                                                                                                                    

[[Page 234]]

                                                                                                                                                                                                
 ......  Trinitrotoluene or TNT,           1.1D  UN0209               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          dry or wetted with less                                                                                                                                                               
          than 30 percent water,                                                                                                                                                                
          by mass.                                                                                                                                                                              
 ......  Trinitrotoluene, wetted            4.1  UN1356                I  4.1.......   23, A2, A8, A19,  None..........  211.......  None......       0.5 kg       0.5 kg  E                  28
          with not less than 30                                                                     N41                                                                                         
          percent water, by mass.                                                                                                                                                               
 ......  Tripropylamine...........            3  UN2260               II  3, 8......             B1, T8  150...........  203.......  242.......          5 L         60 L  A                  40
                                                                       I                                                                                                                        
 ......  Tripropylene.............            3  UN2057               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tris-(1-                           6.1  UN2501               II  6.1.......                 T8  None..........  202.......  243.......          5 L         60 L  A                    
          aziridinyl)phosphine                                                                                                                                                                  
          oxide, solution.                                                                                                                                                                      
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  203.......  241.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Tris, bis-bifluoroamino      Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          diethoxy propane (TVOPA).                                                                                                                                                             
 ......  Tritonal.................         1.1D  UN0390               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
 ......  Tungsten hexafluoride....          2.3  UN2196                   2.3, 8....                  2  None..........  338.......  None......    Forbidden    Forbidden  D                  40
 ......  Turpentine...............            3  UN1299               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Turpentine substitute....            3  UN1300                I  3.........                 T1  None..........  201.......  243.......          1 L         30 L  B                    
         .........................  ...........  ...................  II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Undecane.................            3  UN2330               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Uranium hexafluoride,                7  UN2978                   7, 8......                     423...........  420, 425..  420, 425..  ...........  ...........  ............         
          fissile excepted or non-                                                                                                                                                              
          fissile.                                                                                                                                                                              
 ......  Uranium hexafluoride,                7  UN2977                   7, 8......                     453...........  417, 420..  417, 420..  ...........  ...........  A                    
          fissile (with more than                                                                                                                                                               
          1 percent U-235).                                                                                                                                                                     
 ......  Uranium metal, pyrophoric            7  UN2979                   7, 4.2....                     None..........  418.......  None......  ...........  ...........  D                    
 ......  Uranyl nitrate                       7  UN2980                   7, 8......                     421, 425......  415, 416,   415, 416,   ...........  ...........  D                    
          hexahydrate solution.                                                                                           417.        417.                                                      
 ......  Uranyl nitrate, solid....            7  UN2981                   7, 5.1....                     None..........  419.......  None......    Forbidden        15 kg  A                    
 ......  Urea hydrogen peroxide...          5.1  UN1511               II  5.1, 8....        A1, A7, A29  152...........  213.......  240.......        25 kg       100 kg  A                  13
                                                                       I                                                                                                                        
 ......  Urea nitrate, dry or              1.1D  UN0220               II   1.1D.....                119  None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          wetted with less than 20                                                                                                                                                              
          percent water, by mass.                                                                                                                                                               
 ......  Urea nitrate, wetted with          4.1  UN1357                I  4.1.......   39, A8, A19, N41  None..........  211.......  None......         1 kg        15 kg  A                  28
          not less than 20 percent                                                                                                                                                              
          water, by mass.                                                                                                                                                                       
 ......  Urea peroxide, see Urea    ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          hydrogen peroxide.                                                                                                                                                                    
 ......  Valeraldehyde............            3  UN2058               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Valeric acid, see          ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Corrosive liquids, n.o.s.                                                                                                                                                             

[[Page 235]]

                                                                                                                                                                                                
 ......  Valeryl chloride.........            8  UN2502               II  8, 3......    A3, A6, A7, B2,  154...........  202.......  243.......          1 L         30 L  C                  40
                                                                                                N34, T8                                                                                         
 ......  Vanadium compound, n.o.s.          6.1  UN3285                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  B                    
         .........................  ...........  ...................  II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  B                    
         .........................  ...........  ...................  II  6.1.......                 T7  153...........  213.......  240.......       100 kg       200 kg  A                    
                                                                       I                                                                                                                        
 ......  Vanadium oxytrichloride..            8  UN2443               II  8.........    A3, A6, A7, B2,  154...........  202.......  242.......    Forbidden         30 L  C                  40
                                                                                      B16, N34, T8, T26                                                                                         
 ......  Vanadium pentoxide, non-           6.1  UN2862               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
          fused form.                                                                                                                                                                           
 ......  Vanadium tetrachloride...            8  UN2444                I  8.........    A3, A6, A7, B4,  None..........  201.......  243.......    Forbidden        2.5 L  C                  40
                                                                                           N34, T8, T26                                                                                         
 ......  Vanadium trichloride.....            8  UN2475               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                  40
                                                                       I                                                                                                                        
 ......  Vanadyl sulfate..........          6.1  UN2931               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
D......  Vehicles, self-propelled   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          including internal                                                                                                                                                                    
          combustion engines or                                                                                                                                                                 
          other apparatus                                                                                                                                                                       
          containing an internal                                                                                                                                                                
          combustion Engine or                                                                                                                                                                  
          electric storage                                                                                                                                                                      
          battery, see Engines                                                                                                                                                                  
          etc. or Battery powered                                                                                                                                                               
          etc. or Wheel chair,                                                                                                                                                                  
          electric).                                                                                                                                                                            
 ......  Very signal cartridge,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Cartridges, signal.                                                                                                                                                               
 ......  Vinyl acetate, inhibited.            3  UN1301               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Vinyl bromide, inhibited.          2.1  UN1085                   2.1.......                     306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
 ......  Vinyl butyrate, inhibited            3  UN2838               II  3.........                 T7  150...........  202.......  242.......          5 L         60 L  B                    
 ......  Vinyl chloride, inhibited          2.1  UN1086                   2.1.......            21, B44  306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
          or Vinyl chloride,                                                                                                                                                                    
          stabilized.                                                                                                                                                                           
 ......  Vinyl chloroacetate......          6.1  UN2589               II  6.1, 3....                T14  None..........  202.......  243.......          5 L         60 L  A                    
 ......  Vinyl ethyl ether,                   3  UN1302                I  3.........      A3, B100, T14  None..........  201.......  243.......          1 L         30 L  D                    
          inhibited.                                                                                                                                                                            
 ......  Vinyl fluoride, inhibited          2.1  UN1860                   2.1.......  .................  306...........  304.......  314, 315..    Forbidden       150 kg  E                  40
 ......  Vinyl isobutyl ether,                3  UN1304               II  3.........                 T8  150...........  202.......  242.......          5 L         60 L  B                    
          inhibited.                                                                                                                                                                            
 ......  Vinyl methyl ether,                2.1  UN1087                   2.1.......                B44  306...........  304.......  314, 315..    Forbidden       150 kg  B                  40
          inhibited.                                                                                                                                                                            
 ......  Vinyl nitrate polymer....    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Vinyltoluenes, inhibited.            3  UN2618               II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Vinylidene chloride,                 3  UN1303                I  3.........           T23, T29  150...........  201.......  243.......          1 L         30 L  E                  40
          inhibited.                                                                                                                                                                            
 ......  Vinylpyridines, inhibited          6.1  UN3073               II  6.1, 3, 8.           B100, T8  None..........  202.......  243.......          1 L         30 L  B                  40
 ......  Vinyltrichlorosilane,                3  UN1305                I  3, 8......   A3, A7, B6, N34,  None..........  201.......  243.......    Forbidden        2.5 L  B                  40
          inhibited.                                                                           T14, T26                                                                                         
 ......  Warheads, rocket with             1.4D  UN0370               II   1.4D.....                     None..........  62........  None......    Forbidden        75 kg  A             3E, 7E,
          burster or expelling                                                                                                                                                               24E
          charge.                                                                                                                                                                               
 ......  Warheads, rocket with             1.4F  UN0371               II   1.4F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          burster or expelling                                                                                                                                                                  
          charge.                                                                                                                                                                               
 ......  Warheads, rocket with             1.1D  UN0286               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              3E, 7E
          bursting charge.                                                                                                                                                                      
 ......  Warheads, rocket with             1.2D  UN0287               II   1.2D.....                     None..........  62........  None......    Forbidden    Forbidden  B              3E, 7E
          bursting charge.                                                                                                                                                                      

[[Page 236]]

                                                                                                                                                                                                
 ......  Warheads, rocket with             1.1F  UN0369               II   1.1F.....                     None..........  62........  None......    Forbidden    Forbidden  E                    
          bursting charge.                                                                                                                                                                      
 ......  Warheads, torpedo with            1.1D  UN0221               II   1.1D.....                     None..........  62........  None......    Forbidden    Forbidden  B              3E, 7E
          bursting charge.                                                                                                                                                                      
 ......  Water-reactive liquid,             4.3  UN3129                I  4.3, 8....                     None..........  201.......  243.......    Forbidden          1 L  D                    
          corrosive, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.3, 8....               B106  None..........  202.......  243.......          1 L          5 L  E                  85
         .........................  ...........  ...................  II  4.3, 8....               B106  None..........  203.......  242.......          5 L         60 L  E                    
                                                                       I                                                                                                                        
 ......  Water-reactive liquid,             4.3  UN3148                I  4.3.......                     None..........  201.......  244.......    Forbidden          1 L  E                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.3.......               B106  None..........  202.......  243.......          1 L          5 L  E                  40
         .........................  ...........  ...................  II  4.3.......               B106  None..........  203.......  242.......          5 L         60 L  E                  40
                                                                       I                                                                                                                        
 ......  Water-reactive liquid,             4.3  UN3130                I  4.3, 6.1..                 A4  None..........  201.......  243.......    Forbidden          1 L  D                    
          toxic, n.o.s.                                                                                                                                                                         
         .........................  ...........  ...................  II  4.3, 6.1..               B106  None..........  202.......  243.......          1 L          5 L  E                  85
         .........................  ...........  ...................  II  4.3, 6.1..               B106  None..........  203.......  242.......          5 L         60 L  E                  85
                                                                       I                                                                                                                        
 ......  Water-reactive solid,              4.3  UN3131                I  4.3, 8....    B101, B106, N40  None..........  211.......  242.......    Forbidden        15 kg  D                    
          corrosive, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.3, 8....    128, B101, B106  151...........  212.......  242.......        15 kg        50 kg  E                  85
         .........................  ...........  ...................  II  4.3, 8....    128, B105, B106  151...........  213.......  241.......        25 kg       100 kg  E                  85
                                                                       I                                                                                                                        
 ......  Water-reactive solid,              4.3  UN3132                I  4.3, 4.1..    B101, B106, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
          flammable, n.o.s.                                                                                                                                                                     
         .........................  ...........  ...................  II  4.3, 4.1..         B101, B106  151...........  212.......  242.......        15 kg        50 kg  E                    
         .........................  ...........  ...................  II  4.3, 4.1..         B105, B106  151...........  213.......  241.......        25 kg       100 kg  E                    
                                                                       I                                                                                                                        
 ......  Water-reactive solid,              4.3  UN2813                I  4.3.......    B101, B106, N40  None..........  211.......  242.......    Forbidden        15 kg  E                  40
          n.o.s.                                                                                                                                                                                
         .........................  ...........  ...................  II  4.3.......         B101, B106  151...........  212.......  242.......        15 kg        50 kg  E                  40
         .........................  ...........  ...................  II  4.3.......         B105, B106  151...........  213.......  241.......        25 kg       100 kg  E                  40
                                                                       I                                                                                                                        
 ......  Water-reactive solid,              4.3  UN3133                   4.3, 5.1..                     None..........  214.......  214.......    Forbidden    Forbidden  ............         
          oxidizing, n.o.s.                                                                                                                                                                     
 ......  Water-reactive solid,              4.3  UN3135                I  4.3, 4.2..          B100, N40  None..........  211.......  242.......    Forbidden        15 kg  E                    
          self-heating, n.o.s.                                                                                                                                                                  
         .........................  ...........  ...................  II  4.3, 4.2..         B101, B106  None..........  212.......  242.......        15 kg        50 kg  E                    
         .........................  ...........  ...................  II  4.3, 4.2..         B101, B106  None..........  213.......  241.......        25 kg       100 kg  E                    
                                                                       I                                                                                                                        
 ......  Water-reactive solid,              4.3  UN3134                I  4.3, 6.1..    A8, B101, B106,  None..........  211.......  242.......    Forbidden        15 kg  D                    
          toxic, n.o.s.                                                                             N40                                                                                         

[[Page 237]]

                                                                                                                                                                                                
         .........................  ...........  ...................  II  4.3, 6.1..         B105, B106  151...........  212.......  242.......        15 kg        50 kg  E                  85
         .........................  ...........  ...................  II  4.3, 6.1..         B105, B106  151...........  213.......  241.......        25 kg       100 kg  E                  85
                                                                       I                                                                                                                        
AD.....  Wheel chair, electric (              9  ...................  II   9........                     222...........  222.......  None......     No limit     No limit  A                    
          spillable or non-                                            I                                                                                                                        
          spillable type                                                                                                                                                                        
          batteries).                                                                                                                                                                           
 ......  White acid, see            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Hydrofluoric acid                                                                                                                                                                     
          mixtures.                                                                                                                                                                             
I......  White asbestos                       9  UN2590               II   9........                     155...........  216.......  240.......       200 kg       200 kg  A              34, 40
          (chrysotile, actinolite,                                     I                                                                                                                        
          anthophyllite,                                                                                                                                                                        
          tremolite).                                                                                                                                                                           
 ......  Wood preservatives,                  3  UN1306               II  3.........            T7, T30  150...........  202.......  242.......          5 L         60 L  B                  40
          liquid.                                                                                                                                                                               
         .........................  ...........  ...................  II  3.........        B1, T7, T30  150...........  203.......  242.......         60 L        220 L  A                  40
                                                                       I                                                                                                                        
 ......  Xenon, compressed........          2.2  UN2036                   2.2.......                     306...........  302.......  None......        75 kg       150 kg  A                    
 ......  Xenon, refrigerated                2.2  UN2591                   2.2.......                     320...........  None......  None......        50 kg       500 kg  B                    
          liquid (cryogenic                                                                                                                                                                     
          liquids).                                                                                                                                                                             
 ......  Xylenes..................            3  UN1307               II  3.........                 T1  150...........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........             B1, T1  150...........  203.......  242.......         60 L        220 L  A                    
                                                                       I                                                                                                                        
 ......  Xylenols.................          6.1  UN2261               II  6.1.......                 T8  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Xylidines, solid.........          6.1  UN1711               II  6.1.......                T14  None..........  212.......  242.......        25 kg       100 kg  A                    
 ......  Xylidines, solution......          6.1  UN1711               II  6.1.......                T14  None..........  202.......  243.......          5 L         60 L  A                    
 ......  Xylyl bromide............          6.1  UN1701               II  6.1.......    A3, A6, A7, N33  None..........  340.......  None......    Forbidden         60 L  D                  40
 ......  p-Xylyl diazide..........    Forbidden  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
 ......  Zinc ammonium nitrite....          5.1  UN1512               II  5.1.......                     None..........  212.......  242.......         5 kg        25 kg  E                    
 ......  Zinc arsenate or Zinc              6.1  UN1712               II  6.1.......                     None..........  212.......  242.......        25 kg       100 kg  A                    
          arsenite or Zinc                                                                                                                                                                      
          arsenate and zinc                                                                                                                                                                     
          arsenite mixtures..                                                                                                                                                                   
 ......  Zinc ashes...............          4.3  UN1435               II  4.3.......      A1, A19, B108  151...........  213.......  241.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Zinc bisulfite solution,   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Bisulfites,                                                                                                                                                                       
          inorganic aqueous                                                                                                                                                                     
          solutions, n.o.s.                                                                                                                                                                     
 ......  Zinc bromate.............          5.1  UN2469               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A             56, 58,
                                                                       I                                                                                                                     106
 ......  Zinc chlorate............          5.1  UN1513               II  5.1.......            A9, N34  152...........  212.......  242.......         5 kg        25 kg  A             56, 58,
                                                                                                                                                                                             106
 ......  Zinc chloride, anhydrous.            8  UN2331               II  8.........                     None..........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Zinc chloride, solution..            8  UN1840               II  8.........                 T7  154...........  203.......  241.......          5 L         60 L  A                    
                                                                       I                                                                                                                        
 ......  Zinc cyanide.............          6.1  UN1713                I  6.1.......                     None..........  211.......  242.......         5 kg        50 kg  A                  26
 ......  Zinc dithionite or Zinc              9  UN1931               II  None......                     155...........  204.......  240.......       100 kg       200 kg  A                  49
          hydrosulfite.                                                I                                                                                                                        
 ......  Zinc ethyl, see            ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Diethylzinc.                                                                                                                                                                          
 ......  Zinc fluorosilicate......          6.1  UN2855               II  6.1.......                     153...........  213.......  240.......       100 kg       200 kg  A                  26
                                                                       I                                                                                                                        
 ......  Zinc hydrosulfite, see     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Zinc dithionite.                                                                                                                                                                      
 ......  Zinc muriate solution,     ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          see Zinc chloride,                                                                                                                                                                    
          solution.                                                                                                                                                                             
 ......  Zinc nitrate.............          5.1  UN1514               II  5.1.......                     152...........  212.......  240.......         5 kg        25 kg  A                    
 ......  Zinc permanganate........          5.1  UN1515               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  D             56, 58,
                                                                                                                                                                                             69,
                                                                                                                                                                                            106,
                                                                                                                                                                                             107
 ......  Zinc peroxide............          5.1  UN1516               II  5.1.......                     152...........  212.......  242.......         5 kg        25 kg  A             13, 75,
                                                                                                                                                                                             106

[[Page 238]]

                                                                                                                                                                                                
 ......  Zinc phosphide...........          4.3  UN1714                I  4.3, 6.1..           A19, N40  None..........  211.......  None......    Forbidden        15 kg  E              40, 85
 ......  Zinc powder or Zinc dust.          4.3  UN1436                I  4.3, 4.2..     A19, B109, N40  None..........  211.......  242.......    Forbidden        15 kg  A                    
         .........................  ...........  ...................  II  4.3, 4.2..          A19, B109  None..........  212.......  242.......        15 kg        50 kg  A                    
         .........................  ...........  ...................  II  4.3, 4.2..               B108  None..........  213.......  242.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Zinc resinate............          4.1  UN2714               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Zinc selenate, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Zinc selenite, see         ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Selenates or Selenites.                                                                                                                                                               
 ......  Zinc silicofluoride, see   ...........  ...................      ..........                      .............   .........   .........  ...........  ...........  ............         
          Zinc fluorosilicate.                                                                                                                                                                  
 ......  Zirconium, dry, coiled             4.1  UN2858               II  4.1.......                 A1  151...........  213.......  240.......        25 kg       100 kg  A                    
          wire, finished metal                                         I                                                                                                                        
          sheets, strip (thinner                                                                                                                                                                
          than 254 microns but not                                                                                                                                                              
          thinner than 18 microns).                                                                                                                                                             
 ......  Zirconium, dry, finished           4.2  UN2009               II  4.2.......            A1, A19  None..........  213.......  240.......        25 kg       100 kg  D                    
          sheets, strip or coiled                                      I                                                                                                                        
          wire.                                                                                                                                                                                 
 ......  Zirconium hydride........          4.1  UN1437               II  4.1.......      A19, A20, N34  None..........  212.......  240.......        15 kg        50 kg  E                    
 ......  Zirconium nitrate........          5.1  UN2728               II  5.1.......            A1, A29  152...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
 ......  Zirconium picramate, dry          1.3C  UN0236               II   1.3C.....                     None..........  62........  None......    Forbidden    Forbidden  B              1E, 5E
          or wetted with less than                                                                                                                                                              
          20 percent water, by                                                                                                                                                                  
          mass.                                                                                                                                                                                 
 ......  Zirconium picramate,               4.1  UN1517                I  4.1.......            23, N41  None..........  211.......  None......         1 kg        15 kg  D              28, 36
          wetted with not less                                                                                                                                                                  
          than 20 percent water,                                                                                                                                                                
          by mass.                                                                                                                                                                              
 ......  Zirconium powder, dry....          4.2  UN2008                I  4.2.......                     None..........  211.......  242.......    Forbidden    Forbidden  D                    
         .........................  ...........  ...................  II  4.2.......  A19, A20, N5, N34  None..........  212.......  241.......        15 kg        50 kg  D                    
         .........................  ...........  ...................  II  4.2.......                     None..........  213.......  241.......        25 kg       100 kg  D                    
                                                                       I                                                                                                                        

[[Page 239]]

                                                                                                                                                                                                
 ......  Zirconium powder, wetted           4.1  UN1358               II  4.1.......      A19, A20, N34  None..........  212.......  241.......        15 kg        50 kg  E                    
          with not less than 25                                                                                                                                                                 
          percent water (a visible                                                                                                                                                              
          excess of water must be                                                                                                                                                               
          present) (a)                                                                                                                                                                          
          mechanically produced,                                                                                                                                                                
          particle size less than                                                                                                                                                               
          53 microns; (b)                                                                                                                                                                       
          chemically produced,                                                                                                                                                                  
          particle size less than                                                                                                                                                               
          840 microns.                                                                                                                                                                          
 ......  Zirconium scrap..........          4.2  UN1932               II  4.2.......                N34  None..........  213.......  240.......    Forbidden    Forbidden  D                    
                                                                       I                                                                                                                        
D......  Zirconium sulfate........            8  NA9163               II  8.........                N34  None..........  213.......  240.......        50 kg     No limit  A                    
                                                                       I                                                                                                                        
 ......  Zirconium suspended in a             3  UN1308                I  3.........                     None..........  201.......  243.......    Forbidden    Forbidden  B                    
          liquid.                                                                                                                                                                               
         .........................  ...........  ...................  II  3.........                     None..........  202.......  242.......          5 L         60 L  B                    
         .........................  ...........  ...................  II  3.........                 B1  150...........  203.......  242.......         60 L        220 L  B                    
                                                                       I                                                                                                                        
 ......  Zirconium tetrachloride..            8  UN2503               II  8.........                     154...........  213.......  240.......        25 kg       100 kg  A                    
                                                                       I                                                                                                                        
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


                                                                                                                                                        
                                                                                                                                                        
                                                                                                                                                        
    Editorial Note: For Federal Register citations affecting Sec.  171.101, see the List of CFR Sections Affected in the Finding Aids section of this   
 volume.                                                                                                                                                
                                                                                                                                                        


[[Page 240]]


    Effective Date Note: At 62 FR 39404, July 22, 1997, in 
Sec. 172.101(g), the entries for label codes 6.1 in the Label 
Substitution Table were revised, effective Oct. 1, 1998. For the 
convenience of the user, the revised text is set forth as follows:

Sec. 172.101  Purpose and use of hazardous materials table.

                                * * * * *

    (g) * * *

                        Label Substitution Table                        
------------------------------------------------------------------------
                Label code                           Label name         
------------------------------------------------------------------------
                                                                        
                  *        *        *        *        *                 
6.1 (inhalation hazard, Zone A or B)......  Poison Inhalation Hazard.   
6.1 (I or II, other than Zone A or B        Poison.                     
 inhalation hazard) \2\.                                                
6.1 (III) \2\.............................  Keep Away From Food.        
                                                                        
                  *        *        *        *        *                 
------------------------------------------------------------------------
*    *    *    *    *                                                   
\2\ The packing group for a material is indicated in column 5 of the    
  table.                                                                

                                * * * * *

Appendix A to Sec. 172.101--List of Hazardous Substances and Reportable 
                               Quantities

    1. This Appendix lists materials and their corresponding reportable 
quantities (RQ's) that are listed or designated as ``hazardous 
substances'' under section 101(14) of the Comprehensive Environmental 
Response, Compensation, and Liability Act, 42 U.S.C. 9601(14) (CERCLA; 
42 U.S.C. 9601 et seq). This listing fulfills the requirement of CERCLA, 
42 U.S.C. 9656(a), that all ``hazardous substances,'' as defined in 42 
U.S.C. 9601(14), be listed and regulated as hazardous materials under 49 
U.S.C. 5101-5127. That definition includes substances listed under 
sections 311(b)(2)(A) and 307(a) of the Federal Water Pollution Control 
Act, 33 U.S.C. 1321(b)(2)(A) and 1317(a), section 3001 of the Solid 
Waste Disposal Act, 42 U.S.C. 6921, and section 112 of the Clean Air 
Act, 42 U.S.C. 7412. In addition, this list contains materials that the 
Administrator of the Environmental Protection Agency has determined to 
be hazardous substances in accordance with section 102 of CERCLA, 42 
U.S.C. 9602. It should be noted that 42 U.S.C. 9656(b) provides that 
common and contract carriers may be held liable under laws other than 
CERCLA for the release of a hazardous substance as defined in that Act, 
during transportation that commenced before the effective date of the 
listing and regulating of that substance as a hazardous material under 
49 U.S.C. 5101-5127.
    2. This Appendix is divided into two TABLES which are entitled 
``TABLE 1--HAZARDOUS SUBSTANCES OTHER THAN RADIONUCLIDES'' and ``TABLE 
2--RADIONUCLIDES.'' A material listed in this Appendix is regulated as a 
hazardous material and a hazardous substance under this subchapter if it 
meets the definition of a hazardous substance in Sec. 171.8 of this 
subchapter.
    3. The procedure for selecting a proper shipping name for a 
hazardous substance is set forth in Sec. 172.101(c)(8).
    4. Column 1 of TABLE 1, entitled ``Hazardous substance'', contains 
the names of those elements and compounds that are hazardous substances. 
Following the listing of elements and compounds is a listing of waste 
streams. These waste streams appear on the list in numerical sequence 
and are referenced by the appropriate ``D'', ``F'', or ``K'' numbers. 
Column 2 of TABLE 1, entitled ``Reportable quantity (RQ)'', contains the 
reportable quantity (RQ), in pounds and kilograms, for each hazardous 
substance listed in Column 1 of TABLE 1.
    5. A series of notes is used throughout TABLE 1 and TABLE 2 to 
provide additional information concerning certain hazardous substances. 
These notes are explained at the end of each TABLE.
    6. TABLE 2 lists radionuclides that are hazardous substances and 
their corresponding RQ's. The RQ's in Table 2 for radionuclides are 
expressed in units of curies and terabecquerels, whereas those in Table 
1 are expressed in units of pounds and kilograms. If a material is 
listed in both Table 1 and Table 2, the lower RQ shall apply. 
Radionuclides are listed in alphabetical order. The RQ's for 
radionuclides are given in the radiological unit of measure of curie, 
abbreviated ``Ci'', followed, in parentheses, by an equivalent unit 
measured in terabecquerels, abbreviated ``TBq''.
    7. For mixtures of radionuclides, the following requirements shall 
be used in determining if a package contains an RQ of a hazardous 
substance: (i) if the identity and quantity (in curies or 
terabecquerels) of each radionuclide in a mixture or solution is known, 
the ratio between the quantity per package (in curies or terabecquerels) 
and the RQ for the radionuclide must be determined for each 
radionuclide. A package contains an RQ of a hazardous substance when the 
sum of the ratios for the radionuclides in the mixture or solution is 
equal to or greater than one; (ii) if the identity of each radionuclide 
in a mixture or solution is known but the quantity per package (in 
curies or terabecquerels) of one or more of the radionuclides is 
unknown, an RQ of a hazardous substance is present in a package when the 
total quantity (in curies or terabecquerels) of the mixture or solution 
is equal to or greater than the lowest RQ of any individual radionuclide 
in the mixture or solution; and

[[Page 241]]

(iii) if the identity of one or more radionuclides in a mixture or 
solution is unknown (or if the identity of a radionuclide by itself is 
unknown), an RQ of a hazardous substance is present when the total 
quantity (in curies or terabecquerels) in a package is equal to or 
greater than either one curie or the lowest RQ of any known individual 
radionuclide in the mixture or solution, whichever is lower.

         Table 1.--Hazardous Substances Other Than Radionuclides        
------------------------------------------------------------------------
                                                            Reportable  
                                                           quantity (RQ)
                   Hazardous substance                        pounds    
                                                            (kilograms) 
------------------------------------------------------------------------
Acenaphthene............................................      100 (45.4)
Acenaphthylene..........................................     5000 (2270)
Acetaldehyde............................................      1000 (454)
Acetaldehyde, chloro-...................................      1000 (454)
Acetaldehyde, trichloro-................................     5000 (2270)
Acetamide...............................................      100 (45.4)
Acetamide, N-(aminothioxomethyl)-.......................      1000 (454)
Acetamide, N-(4-ethoxyphenyl)-..........................      100 (45.4)
Acetamide, N-fluoren-2-yl-..............................       1 (0.454)
Acetamide, 2-fluoro-....................................      100 (45.4)
Acetic acid.............................................     5000 (2270)
Acetic acid (2,4-dichlorophenoxy)-......................      100 (45.4)
Acetic acid, ethyl ester................................     5000 (2270)
Acetic acid, fluoro-, sodium salt.......................       10 (4.54)
Acetic acid, lead (2+) salt.............................       10 (4.54)
Acetic acid, thallium(I+) salt..........................      1000 (454)
Acetic anhydride........................................     5000 (2270)
Acetone.................................................     5000 (2270)
Acetone cyanohydrin.....................................       10 (4.54)
Acetonitrile............................................     5000 (2270)
Acetophenone............................................     5000 (2270)
2-Acetylaminofluorene...................................       1 (0.454)
Acetyl bromide..........................................     5000 (2270)
Acetyl chloride.........................................     5000 (2270)
1-Acetyl-2-thiourea.....................................       1 (0.454)
Acrylamide..............................................     5000 (2270)
Acrylic acid............................................     5000 (2270)
Acrylonitrile...........................................      100 (45.4)
Adipic acid.............................................     5000 (2270)
AldicarbD1 (0.454)......................................                
Aldrin..................................................       1 (0.454)
Allyl alcohol...........................................      100 (45.4)
Allyl chloride..........................................      1000 (454)
Aluminum phosphide......................................      100 (45.4)
Aluminum sulfate........................................     5000 (2270)
4-Aminobiphenyl.........................................       1 (0.454)
5-(Aminomethyl)-3-isoxazolol............................      1000 (454)
4-Aminopyridine.........................................      1000 (454)
Amitrole................................................       10 (4.54)
Ammonia.................................................      100 (45.4)
Ammonium acetate........................................     5000 (2270)
Ammonium benzoate.......................................     5000 (2270)
Ammonium bicarbonate....................................     5000 (2270)
Ammonium bichromate.....................................       10 (4.54)
Ammonium bifluoride.....................................      100 (45.4)
Ammonium bisulfite......................................     5000 (2270)
Ammonium carbamate......................................     5000 (2270)
Ammonium carbonate......................................     5000 (2270)
Ammonium chloride.......................................     5000 (2270)
Ammonium chromate.......................................       10 (4.54)
Ammonium citrate, dibasic...............................     5000 (2270)
Ammonium dichromate @...................................       10 (4.54)
Ammonium fluoborate.....................................     5000 (2270)
Ammonium fluoride.......................................      100 (45.4)
Ammonium hydroxide......................................      1000 (454)
Ammonium oxalate........................................     5000 (2270)
Ammonium picrate........................................       10 (4.54)
Ammonium silicofluoride.................................      1000 (454)
Ammonium sulfamate......................................     5000 (2270)
Ammonium sulfide........................................      100 (45.4)
Ammonium sulfite........................................     5000 (2270)
Ammonium tartrate.......................................     5000 (2270)
Ammonium thiocyanate....................................     5000 (2270)

[[Page 242]]

                                                                        
Ammonium vanadate.......................................      1000 (454)
Amyl acetate............................................     5000 (2270)
    iso-Amyl acetate....................................  ..............
    sec-Amyl acetate....................................  ..............
    tert-Amyl acetate...................................  ..............
Aniline.................................................     5000 (2270)
o-Anisidine.............................................      100 (45.4)
Anthracene..............................................     5000 (2270)
Antimony  cents.........................................     5000 (2270)
Antimony pentachloride..................................      1000 (454)
Antimony potassium tartrate.............................      100 (45.4)
Antimony tribromide.....................................      1000 (454)
Antimony trichloride....................................      1000 (454)
Antimony trifluoride....................................      1000 (454)
Antimony trioxide.......................................      1000 (454)
Argentate(1-), bis(cyano-C)-, potassium.................       1 (0.454)
Aroclor 1016............................................       1 (0.454)
Aroclor 1221............................................       1 (0.454)
Aroclor 1232............................................       1 (0.454)
Aroclor 1242............................................       1 (0.454)
Aroclor 1248............................................       1 (0.454)
Aroclor 1254............................................       1 (0.454)
Aroclor 1260............................................       1 (0.454)
Arsenic  cents..........................................       1 (0.454)
Arsenic acid............................................       1 (0.454)
Arsenic acid H3AsO4.....................................       1 (0.454)
Arsenic disulfide.......................................       1 (0.454)
Arsenic oxide As203.....................................       1 (0.454)
Arsenic oxide As205.....................................       1 (0.454)
Arsenic pentoxide.......................................       1 (0.454)
Arsenic trichloride.....................................       1 (0.454)
Arsenic trioxide........................................       1 (0.454)
Arsenic trisulfide......................................       1 (0.454)
Arsine, diethyl-........................................       1 (0.454)
Arsinic acid, dimethyl-.................................       1 (0.454)
Arsonous dichloride, phenyl-............................       1 (0.454)
Asbestos  cents cents...................................       1 (0.454)
Auramine100 (45.4)......................................                
Azaserine...............................................       1 (0.454)
Aziridine...............................................       1 (0.454)
Aziridine, 2-methyl-....................................       1 (0.454)
Azirino[2',3':3,4]pyrrolo(1,2-a)indole-4,7-dione,6-                     
 amino-8-[[(aminocarbonyl)oxy] methyl]-1,1a,2,8,8a, 8b-                 
 hexahydro-8a-methoxy-5-methyl-, [1aS-                                  
 [aalpha,8beta,8aalpha,8balpha)]-.......................       10 (4.54)
Barium cyanide..........................................       10 (4.54)
Benz[j]aceanthrylene, 1,2-dihydro-3-methyl-.............       10 (4.54)
Benz[c]acridine.........................................      100 (45.4)
3,4-Benzacridine........................................      100 (45.4)
Benzal chloride.........................................     5000 (2270)
Benzamide, 3,5-dichloro-N-(1,1-dimethyl-2-propynyl).....     5000 (2270)
Benz[a]anthracene.......................................       10 (4.54)
1,2-Benzanthracene......................................       10 (4.54)
Benz[a]anthracene, 7,12-dimethyl-.......................       1 (0.454)
Benzenamine.............................................     5000 (2270)
Benzenamine, 4,4'-carbonimidoylbis (N,N-dimethyl-.......      100 (45.4)
Benzenamine, 4-chloro-..................................      1000 (454)
Benzenamine, 4-chloro-2-methyl-, hydrochloride..........      100 (45.4)
Benzenamine, N,N-dimethyl-4-(phenylazo)-................       10 (4.54)
Benzenamine, 2-methyl-..................................      100 (45.4)
Benzenamine, 4-methyl-..................................      100 (45.4)
Benzenamine, 4,4'-methylenebis(2-chloro-................       10 (4.54)
Benzenamine, 2-methyl-, hydrochloride...................      100 (45.4)
Benzenamine, 2-methyl-5-nitro-..........................      100 (45.4)
Benzenamine, 4-nitro-...................................     5000 (2270)
Benzene.................................................       10 (4.54)
Benzene, 1-bromo-4-phenoxy-.............................      100 (45.4)
Benzene, chloro-........................................      100 (45.4)
Benzene, chloromethyl-..................................      100 (45.4)
Benzene, 1,2-dichloro-..................................      100 (45.4)
Benzene, 1,3-dichloro-..................................      100 (45.4)
Benzene, 1,4-dichloro-..................................      100 (45.4)

[[Page 243]]

                                                                        
Benzene, 1,1'-(2,2-dichloroethylidene)bis[4-chloro......       1 (0.454)
Benzene, dichloromethyl-................................     5000 (2270)
Benzene, 1,3-diisocyanatomethyl.........................      100 (45.4)
Benzene, dimethyl-......................................      100 (45.4)
Benzene, m-dimethyl-....................................      1000 (454)
Benzene, o-dimethyl-....................................      1000 (454)
Benzene, p-dimethyl-....................................      100 (45.4)
Benzene, hexachloro-....................................       10 (4.54)
Benzene, hexahydro-.....................................      1000 (454)
Benzene, hydroxy-.......................................      1000 (454)
Benzene, methyl-........................................      1000 (454)
Benzene, 1-methyl-2,4-dinitro-..........................       10 (4.54)
Benzene, 2-methyl-1,3-dinitro-..........................      100 (45.4)
Benzene, 1-methylethyl-.................................     5000 (2270)
Benzene, nitro-.........................................      1000 (454)
Benzene, pentachloro-...................................       10 (4.54)
Benzene, pentachloronitro-..............................      100 (45.4)
Benzene, 1,2,4,5-tetrachloro-...........................     5000 (2270)
Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-chloro-..       1 (0.454)
Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-methoxy)-       1 (0.454)
Benzene, (trichloromethyl)..............................       10 (4.54)
Benzene, 1,3,5-trinitro-................................       10 (4.54)
Benzeneacetic acid, 4-chloro-alpha-(4-chlorophenyl)-                    
 alpha-hydroxy-, ethyl ester............................       10 (4.54)
Benzenebutanoic acid, 4-[bis(2-chloroethyl)amino]-......       10 (4.54)
Benzenediamine, ar-methyl-..............................       10 (4.54)
1,2-Benzenedicarboxylic acid, [bis(2-ethylhexyl)] ester.      100 (45.4)
1,2-Benzenedicarboxylic acid, dibutyl ester.............       10 (4.54)
1,2-Benzenedicarboxylic acid, diethyl ester.............      1000 (454)
1,2-Benzenedicarboxylic acid, dimethyl ester............     5000 (2270)
1,2-Benzenedicarboxylic acid, dioctyl ester.............     5000 (2270)
1,3-Benzenediol.........................................     5000 (2270)
1,2-Benzenediol,4-[1-hydroxy-2-(methylamino)ethyl]-.....      1000 (454)
Benzeneethanamine, alpha,alpha-dimethyl-................     5000 (2270)
Benzeneethanamine, alpha,alpha-dimethyl-................     5000 (2270)
Benzenesulfonic acid chloride...........................      100 (45.4)
Benzenesulfonyl chloride................................      100 (45.4)
Benzenethiol............................................      100 (45.4)
Benzidine...............................................       1 (0.454)
1,2-Benzisothiazol-3(2H)-one,1,1-dioxide................      100 (45.4)
Benzo[a]anthracene......................................       10 (4.54)
1,3-Benzodioxole, 5-(2-propenyl)-.......................      100 (45.4)
1,3-Benzodioxole, 5-(1-propenyl)-.......................      100 (45.4)
1,3-Benzodioxole, 5-propyl-.............................       10 (4.54)
Benzo[b]fluoranthene....................................       1 (0.454)
Benzo[k]fluoranthene....................................     5000 (2270)
Benzo[j,k]fluorene......................................      100 (45.4)
Benzoic acid............................................     5000 (2270)
Benzonitrile............................................     5000 (2270)
Benzo[g,h,i]perylene....................................     5000 (2270)
2H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenyl-                     
 butyl)-, & salts, when present at concentrations                       
 greater than 0.3%......................................      100 (45.4)
Benzo[a]pyrene..........................................       1 (0.454)
3,4-Benzopyrene.........................................       1 (0.454)
p-Benzoquinone..........................................       10 (4.54)
Benzo [rst]pentaphene...................................       10 (4.54)
Benzotrichloride........................................       10 (4.54)
Benzoyl chloride........................................      1000 (454)
1,2-Benzphenanthrene....................................      100 (45.4)
Benzyl chloride.........................................      100 (45.4)
Beryllium  cents........................................       10 (4.54)
Beryllium chloride......................................       1 (0.454)
Beryllium dust  cents...................................       10 (4.54)
Beryllium fluoride......................................       1 (0.454)
Beryllium nitrate.......................................       1 (0.454)
alpha - BHC.............................................       10 (4.54)
beta - BHC..............................................       1 (0.454)
delta - BHC.............................................       1 (0.454)
gamma - BHC.............................................       1 (0.454)
2,2'Bioxirane...........................................       10 (4.54)
Biphenyl................................................      100 (45.4)

[[Page 244]]

                                                                        
(1,1'-Biphenyl)-4,4'-diamine............................       1 (0.454)
(1,1'-Biphenyl)-4,4'-diamine,3,3'-dichloro-.............       1 (0.454)
(1,1'-Biphenyl)-4,4'-diamine,3,3'-dimethoxy-............       10 (4.54)
(1,1'-Biphenyl)-4,4'-diamine,3,3'-dimethyl-.............       10 (4.54)
Bis(2-chloroethoxy) methane.............................      1000 (454)
Bis(2-chloroethyl) ether................................       10 (4.54)
Bis(2-ethylhexyl)phthalate..............................      100 (45.4)
Bromoacetone............................................      1000 (454)
Bromoform...............................................      100 (45.4)
4-Bromophenyl phenyl etherD100 (45.4)...................                
Brucine.................................................      100 (45.4)
1,3-Butadiene...........................................       10 (4.54)
1,3-Butadiene, 1,1,2,3,4,4-hexachloro-..................       1 (0.454)
1-Butanamine, N-butyl-N-nitroso-........................       10 (4.54)
1-Butanol...............................................     5000 (2270)
2-Butanone..............................................     5000 (2270)
2-Butanone, 3,3-dimethyl-1-(methylthio)-,O-                             
 [(methylamino)carbonyl] oxime..........................      100 (45.4)
2-Butanone peroxide.....................................       10 (4.54)
2-Butenal...............................................      100 (45.4)
2-Butene, 1,4-dichloro-.................................       1 (0.454)
2-Butenoic acid, 2-methyl-,7[[2,3-dihydroxy-2-(1-                       
 methoxyethyl)-3-methyl-1-oxobutoxy]methyl]-2,3,5,7a-                   
 tetrahydro-1H-pyrrolizin-1-yl ester, [1S-                              
 [1alpha(Z),7(2S*, 3R*), 7aalpha]]-.....................       10 (4.54)
Butyl acetate...........................................     5000 (2270)
    iso-Butyl acetate...................................  ..............
    sec-Butyl acetate...................................  ..............
    tert-Butyl acetate..................................  ..............
n-Butyl alcohol.........................................     5000 (2270)
Butylamine..............................................      1000 (454)
    iso-Butylamine......................................  ..............
    sec-Butylamine......................................  ..............
    tert-Butylamine.....................................  ..............
Butyl benzyl phthalate..................................      100 (45.4)
n-Butyl phthalate.......................................       10 (4.54)
Butyric acid............................................     5000 (2270)
    iso-Butyric acid....................................  ..............
Cacodylic acid..........................................       1 (0.454)
Cadmium  cents..........................................       10 (4.54)
Cadmium acetate.........................................       10 (4.54)
Cadmium bromide.........................................       10 (4.54)
Cadmium chloride........................................       10 (4.54)
Calcium arsenate........................................       1 (0.454)
Calcium arsenite........................................       1 (0.454)
Calcium carbide.........................................       10 (4.54)
Calcium chromate........................................       10 (4.54)
Calcium cyanamide.......................................      1000 (454)
Calcium cyanide.........................................       10 (4.54)
Calcium cyanide Ca(CN)2.................................       10 (4.54)
Calcium dodecylbenzene sulfonate........................      1000 (454)
Calcium hypochlorite....................................       10 (4.54)
Camphene, octachloro-...................................       1 (0.454)
Caprolactam.............................................     5000 (2270)
Captan..................................................       10 (4.54)
Carbamic acid, ethyl ester..............................      100 (45.4)
Carbamic acid, methylnitroso-, ethyl ester..............       1 (0.454)
Carbamic chloride, dimethyl-............................       1 (0.454)
Carbamide, thio-........................................       10 (4.54)
Carbamimidoselenoic acid................................      1000 (454)
Carbamothioic acid, bis (1-methylethyl)-, S-(2,3-                       
 dichloro-2-propenyl) ester.............................      100 (45.4)
Carbaryl................................................      100 (45.4)
Carbofuran..............................................       10 (4.54)
Carbon bisulfide........................................      100 (45.4)
Carbon disulfide........................................      100 (45.4)
Carbonic acid, dithallium (I+)..........................      100 (45.4)
Carbonic dichloride.....................................       10 (4.54)
Carbonic difluoride.....................................      1000 (454)
Carbonochloridic acid, methyl ester.....................      1000 (454)
Carbon oxyfluoride......................................      1000 (454)
Carbon tetrachloride....................................       10 (4.54)
Carbonyl sulfide........................................      100 (45.4)
Catechol................................................      100 (45.4)

[[Page 245]]

                                                                        
Chloral.................................................      5000(2270)
Chloramben..............................................      100 (45.4)
Chlorambucil............................................       10 (4.54)
Chlordane...............................................       1 (0.454)
Chlordane, alpha & gamma isomers........................       1 (0.454)
Chlordane, technical....................................       1 (0.454)
Chlorine................................................       10 (4.54)
Chlornaphazine..........................................      100 (45.4)
Chloroacetaldehyde......................................      1000 (454)
Chloroacetic acid.......................................      100 (45.4)
2-Chloroacetophenone....................................      100 (45.4)
p-Chloroaniline.........................................      1000 (454)
Chlorobenzene...........................................      100 (45.4)
Chlorobenzilate.........................................       10 (4.54)
4-Chloro-m-cresol.......................................     5000 (2270)
p-Chloro-m-cresol.......................................     5000 (2270)
Chlorodibromomethane....................................      100 (45.4)
Chloroethane............................................      100 (45.4)
2-Chloroethyl vinyl ether...............................      1000 (454)
Chloroform..............................................       10 (4.54)
Chloromethane...........................................      100 (45.4)
Chloromethyl methyl ether...............................       1 (0.454)
beta-Chloronaphthalene..................................     5000 (2270)
2-Chloronaphthalene.....................................     5000 (2270)
2-Chlorophenol..........................................      100 (45.4)
o-Chlorophenol..........................................      100 (45.4)
4-Chlorophenyl phenyl ether.............................     5000 (2270)
1-(o-Chlorophenyl)thiourea..............................      100 (45.4)
Chloroprene.............................................      100 (45.4)
3-Chloropropionitrile...................................      1000 (454)
Chlorosulfonic acid.....................................      1000 (454)
4-Chloro-o-toluidine, hydrochloride.....................      100 (45.4)
Chlorpyrifos............................................       1 (0.454)
Chromic acetate.........................................      1000 (454)
Chromic acid............................................       10 (4.54)
Chromic acid H2CrO4, calcium salt.......................       10 (4.54)
Chromic sulfate.........................................      1000 (454)
Chromium  cents.........................................     5000 (2270)
Chromous chloride.......................................      1000 (454)
Chrysene................................................      100 (45.4)
Cobaltous bromide.......................................      1000 (454)
Cobaltous formate.......................................      1000 (454)
Cobaltous sulfamate.....................................      1000 (454)
Coke Oven Emissions.....................................       1 (0.454)
Copper  cents...........................................     5000 (2270)
Copper chloride @.......................................       10 (4.54)
Copper cyanide..........................................       10 (4.54)
Copper cyanide CuCN.....................................       10 (4.54)
Coumaphos...............................................       10 (4.54)
Creosote................................................       1 (0.454)
Cresols (isomers and mixture)...........................      100 (45.4)
m-Cresol................................................      100 (45.4)
o-Cresolo...............................................      100 (45.4)
p-Cresol................................................      100 (45.4)
Cresylic acid (isomers and mixture).....................      100 (45.4)
m-Cresylic acid.........................................      100 (45.4)
o-Cresylic acid.........................................      100 (45.4)
p-Cresylic acid.........................................      100 (45.4)
Crotonaldehyde..........................................      100 (45.4)
Cumene..................................................     5000 (2270)
Cupric acetate..........................................      100 (45.4)
Cupric acetoarsenite....................................       1 (0.454)
Cupric chloride.........................................       10 (4.54)
Cupric nitrate..........................................      100 (45.4)
Cupric oxalate..........................................      100 (45.4)
Cupric sulfate..........................................       10 (4.54)
Cupric sulfate ammoniated...............................      100 (45.4)
Cupric tartrate.........................................      100 (45.4)
Cyanides (soluble salts and complexes) not otherwise                    
 specified..............................................       10 (4.54)
Cyanogen................................................      100 (45.4)

[[Page 246]]

                                                                        
Cyanogen bromide........................................      1000 (454)
Cyanogen bromide (CN)Br.................................      1000 (454)
Cyanogen chloride.......................................       10 (4.54)
Cyanogen chloride (CN)Cl................................       10 (4.54)
2,5-Cyclohexadiene-1,4-dione............................       10 (4.54)
Cyclohexane.............................................      1000 (454)
Cyclohexane, 1,2,3,4,5,6-hexachloro-,                                   
 (1alpha,2alpha,3beta,4alpha,5alpha,6beta)-.............       1 (0.454)
Cyclohexanone...........................................     5000 (2270)
2-Cyclohexyl-4,6-dinitrophenol..........................      100 (45.4)
1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro-............       10 (4.54)
Cyclophosphamide........................................       10 (4.54)
2,4-D Acid..............................................      100 (45.4)
2,4-D Ester.............................................      100 (45.4)
Daunomycin..............................................       10 (4.54)
DDD.....................................................       1 (0.454)
4,4'-DDD................................................       1 (0.454)
DDE.....................................................     5000 (2270)
4,4'-DDE................................................     5000 (2270)
DDE.....................................................       1 (0.454)
4,4'-DDE................................................       1 (0.454)
DDT.....................................................       1 (0.454)
4,4'-DDT................................................       1 (0.454)
Diallate................................................      100 (45.4)
Diamine.................................................       1 (0.454)
Diazinon................................................       1 (0.454)
Diazomethane............................................      100 (45.4)
Dibenz[a,h]anthracene...................................       1 (0.454)
1,2:5,6-Dibenzanthracene................................       1 (0.454)
Dibenzo[a,h]anthracene..................................       1 (0.454)
Dibenzofuran............................................      100 (45.4)
Dibenz[a,i]pyrene.......................................       10 (4.54)
1,2-Dibromo-3-chloropropane.............................       1 (0.454)
Dibutyl phthalate.......................................       10 (4.54)
Di-n-butyl phthalate....................................       10 (4.54)
Dicamba.................................................      1000 (454)
Dichlobenil.............................................      100 (45.4)
Dichlone................................................       1 (0.454)
Dichlorobenzene.........................................      100 (45.4)
1,2-Dichlorobenzene.....................................      100 (45.4)
1,3-Dichlorobenzene.....................................      100 (45.4)
1,4-Dichlorobenzene.....................................      100 (45.4)
m-Dichlorobenzene.......................................      100 (45.4)
o-Dichlorobenzene.......................................      100 (45.4)
p-Dichlorobenzene.......................................      100 (45.4)
3,3'-Dichlorobenzidine..................................       1 (0.454)
Dichlorobromomethane....................................     5000 (2270)
1,4-Dichloro-2-butene...................................       1 (0.454)
Dichlorodifluoromethane.................................     5000 (2270)
1,1-Dichloroethane......................................      1000 (454)
1,2-Dichloroethane......................................      100 (45.4)
1,1-Dichloroethylene....................................      100 (45.4)
1,2-Dichloroethylene....................................      1000 (454)
Dichloroethyl ether.....................................       10 (4.54)
Dichloroisopropyl--ether................................      1000 (454)
Dichloromethane @.......................................      1000 (454)
Dichloromethoxy ethane..................................      1000 (454)
Dichloromethyl ether....................................       1 (0.454)
2,4-Dichlorophenol......................................      100 (45.4)
2,6-Dichlorophenol......................................      100 (45.4)
Dichlorophenylarsine....................................       1 (0.454)
Dichloropropane.........................................      1000 (454)
    1,1-Dichloropropane.................................  ..............
    1,3-Dichloropropane.................................  ..............
1,2-Dichloropropane.....................................      1000 (454)
Dichloropropane - Dichloropropene (mixture).............      100 (45.4)
Dichloropropene.........................................      100 (45.4)
    2,3-Dichloropropene.................................  ..............
1,3-Dichloropropene.....................................      100 (45.4)
2,2-Dichloropropionic acid..............................     5000 (2270)
Dichlorvos..............................................       10 (4.54)

[[Page 247]]

                                                                        
Dicofol.................................................       10 (4.54)
Dieldrin................................................       1 (0.454)
1,2:3,4-Diepoxybutane...................................       10 (4.54)
Diethanolamine..........................................      100 (45.4)
Diethylamine............................................      1000 (454)
N,N-diethylaniline......................................      1000 (454)
Diethylarsine...........................................       1 (0.454)
1,4-Diethylenedioxide...................................      100 (45.4)
Diethylhexyl phthalate..................................      100 (45.4)
N,N'-Diethylhydrazine...................................       10 (4.54)
O,O-Diethyl S-methyl dithiophosphate....................     5000 (2270)
Diethyl-p-nitrophenyl phosphate.........................      100 (45.4)
Diethyl phthalate.......................................       1000(454)
O,O-Diethyl O-pyrazinyl phosphorothioate................      100 (45.4)
Diethylstilbestrol......................................       1 (0.454)
Diethyl sulfate.........................................       10 (4.54)
Dihydrosafrole..........................................       10 (4.54)
Diisopropyl fluorophosphate.............................      100 (45.4)
1,4,5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-                 
 1,4,4a,5,8,8a-hexahydro,                                               
 (1alpha,4alpha,4abeta,5abeta,8beta,8abeta)-............       1 (0.454)
1,4,5,8-Dimethanonaphthalene,1,2,3,4,10,10-10-hexachloro-               
 1,4,4a,5,8,8a-hexahydro-                                               
 ,(1alpha,4alpha,4abeta,5alpha,8alpha,8abeta)-..........       1 (0.454)
2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-                     
 hexachloro-1a,2,2a,3,6,6a,7,7a-........................                
  octahydro-,(1aalpha,2beta,2abeta,3alpha,6alpha,6abeta,                
  7beta,7aalpha)-.......................................       1 (0.454)
2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-                     
 hexachloro-1a,2,2a,3,6,6a,7,7a-........................                
  octahydro-,(1aalpha,2beta,2aalpha,3beta,6beta,6aalpha,                
  7beta,7aalpha)-.......................................       1 (0.454)
Dimethoate..............................................       10 (4.54)
3,3'-Dimethoxybenzidine.................................       10 (4.54)
Dimethylamine...........................................      1000 (454)
p-Dimethylaminoazobenzene...............................       10 (4.54)
N,N-dimethylaniline.....................................      100 (45.4)
7,12-Dimethylbenz[a]anthracene..........................       1 (0.454)
3,3'-Dimethylbenzidine..................................       10 (4.54)
alpha,alpha-Dimethylbenzylhydroperoxide.................       10 (4.54)
Dimethylcarbamoyl chloride..............................       1 (0.454)
Dimethylformamide.......................................      100 (45.4)
1,1-Dimethylhydrazine...................................       10 (4.54)
1,2-Dimethylhydrazine...................................       1 (0.454)
Dimethylhydrazine, unsymmetrical @......................       10 (4.54)
alpha,alpha-Dimethylphenethylamine......................     5000 (2270)
12,4-Dimethylphenol.....................................      100 (45.4)
Dimethyl phthalate......................................     5000 (2270)
Dimethyl sulfate........................................      100 (45.4)
Dinitrobenzene (mixed)..................................      100 (45.4)
    m-Dinitrobenzene....................................  ..............
    o-Dinitrobenzene....................................  ..............
    p-Dinitrobenzene....................................                
4,6-Dinitro-o-cresol and salts..........................       10 (4.54)
Dinitrogen tetroxide @..................................       10 (4.54)
Dinitrophenol...........................................       10 (4.54)
    2,5-Dinitrophenol...................................  ..............
2,4-Dinitrophenol.......................................       10 (4.54)
Dinitrotoluene..........................................       10 (4.54)
    3,4-Dinitrotoluene..................................  ..............
2,4-Dinitrotoluene......................................       10 (4.54)
2,6-Dinitrotoluene......................................      100 (45.4)
Dinoseb.................................................      1000 (454)
Di-n-octyl phthalate....................................     5000 (2270)
1,4-Dioxane.............................................      100 (45.4)
1,2-Diphenylhydrazine...................................       10 (4.54)
Diphosphoramide, octamethyl-............................      100 (45.4)
Diphosphoric acid, tetraethyl ester.....................       10 (4.54)
Dipropylamine...........................................     5000 (2270)
Di-n-propylnitrosamine..................................       10 (4.54)
Diquat..................................................      1000 (454)
Disulfoton..............................................       1 (0.454)
Dithiobiuret............................................      100 (45.4)
Diuron..................................................      100 (45.4)

[[Page 248]]

                                                                        
Dodecylbenzenesulfonic acid.............................      1000 (454)
2,4-D, salts and esters.................................      100 (45.4)
Endosulfan..............................................       1 (0.454)
alpha-Endosulfan........................................       1 (0.454)
beta-Endosulfan.........................................       1 (0.454)
Endosulfan sulfate......................................       1 (0.454)
Endothall...............................................      1000 (454)
Endrin..................................................       1 (0.454)
Endrin, & metabolites...................................       1 (0.454)
Endrin aldehyde.........................................       1 (0.454)
Epichlorohydrin.........................................      100 (45.4)
Epinephrine.............................................      1000 (454)
1,2-Epoxybutane.........................................      100 (45.4)
Ethanal.................................................      1000 (454)
Ethanamine, N-ethyl-N-nitroso-..........................       1 (0.454)
Ethane, 1,2-dibromo-....................................       1 (0.454)
Ethane, 1,1-dichloro-...................................      1000 (454)
Ethane, 1,2-dichloro-...................................      100 (45.4)
Ethane, hexachloro-.....................................      100 (45.4)
Ethane, 1,1'-[methylenebis(oxy)]bis(2-chloro-...........      1000 (454)
Ethane, 1,1'-oxybis-....................................      100 (45.4)
Ethane, 1,1'-oxybis(2-chloro-...........................       10 (4.54)
Ethane, pentachloro-....................................       10 (4.54)
Ethane, 1,1,1,2-tetrachloro-............................      100 (45.4)
Ethane, 1,1,2,2-tetrachloro-............................      100 (45.4)
Ethane, 1,1,2-trichloro-................................      100 (45.4)
Ethane, 1,1,1-trichloro-................................      1000 (454)
1,2-Ethanediamine, N,N-dimethyl-N'-2-pyridinyl-N'-(2-                   
 thienyl-methyl)-.......................................     5000 (2270)
Ethanedinitrile.........................................      100 (45.4)
Ethanenitrile...........................................     5000 (2270)
Ethanethioamide.........................................       10 (4.54)
Ethanimidothioic acid, N-[[(methylamino)carbonyl] oxy]-,                
 methyl ester...........................................      100 (45.4)
Ethanol, 2-ethoxy-......................................      1000 (454)
Ethanol, 2,2'-(nitrosoimino)bis-........................       1 (0.454)
Ethanone, 1-phenyl-.....................................     5000 (2270)
Ethanoyl chloride.......................................     5000 (2270)
Ethene, chloro-.........................................       1 (0.454)
Ethene, 2-chloroethoxy-.................................      1000 (454)
Ethene, 1,1-dichloro-...................................      100 (45.4)
Ethene, 1,2-dichloro- (E)...............................      1000 (454)
Ethene, tetrachloro-....................................      100 (45.4)
Ethene, trichloro-......................................      100 (45.4)
Ethion..................................................       10 (4.54)
Ethyl acetate...........................................     5000 (2270)
Ethyl acrylate..........................................      1000 (454)
Ethylbenzene............................................      1000 (454)
Ethyl carbamate (Urethan)...............................      100 (45.4)
Ethyl chloride @........................................      100 (45.4)
Ethyl cyanide...........................................       10 (4.54)
Ethylene dibromide......................................       1 (0.454)
Ethylene dichloride.....................................      100 (45.4)
Ethylene glycol.........................................     5000 (2270)
Ethylene glycol monoethyl ether.........................      1000 (454)
Ethylene oxide..........................................       10 (4.54)
Ethylenebisdithiocarbamic acid..........................     5000 (2270)
Ethylenebisdithiocarbamic acid, salts and esters........     5000 (2270)
Ethylenediamine.........................................     5000 (2270)
Ethylenediamine tetraacetic acid (EDTA).................     5000 (2270)
Ethylenethiourea........................................       10 (4.54)
Ethylenimine............................................       1 (0.454)
Ethyl ether.............................................      100 (45.4)
Ethylidene dichloride...................................      1000 (454)
Ethyl methacrylate......................................      1000 (454)
Ethyl methanesulfonate..................................       1 (0.454)
Ethyl methyl ketone @...................................     5000 (2270)
Famphurdimethylester....................................      1000 (454)
Ferric ammonium citrate.................................      1000 (454)
Ferric ammonium oxalate.................................      1000 (454)
Ferric chloride.........................................      1000 (454)
Ferric fluoride.........................................      100 (45.4)

[[Page 249]]

                                                                        
Ferric nitrate..........................................      1000 (454)
Ferric sulfate..........................................      1000 (454)
Ferrous ammonium sulfate................................      1000 (454)
Ferrous chloride........................................      100 (45.4)
Ferrous sulfate.........................................      1000 (454)
Fluoranthene............................................      100 (45.4)
Fluorene................................................     5000 (2270)
Fluorine................................................       10 (4.54)
Fluoroacetamide.........................................      100 (45.4)
Fluoroacetic acid, sodium salt..........................       10 (4.54)
Formaldehyde............................................      100 (45.4)
Formic acid.............................................     5000 (2270)
Fulminic acid, mercury(2+)salt..........................       10 (4.54)
Fumaric acid............................................     5000 (2270)
Furan...................................................      100 (45.4)
Furan, tetrahydro-......................................      1000 (454)
2-Furancarboxaldehyde...................................     5000 (2270)
2,5-Furandione..........................................     5000 (2270)
Furfural................................................     5000 (2270)
Furfuran................................................      100 (45.4)
Glucopyranose, 2-deoxy-2-(3-methyl-3-nitrosoureido)-....       1 (0.454)
D-Glucose, 2-deoxy-2-[[methylnitrosoamino)-                             
 carbonyl]amino]-.......................................       1 (0.454)
Glycidylaldehyde........................................       10 (4.54)
Guanidine, N-methyl-N'-nitro-N-nitroso-.................       10 (4.54)
Guthion.................................................       1 (0.454)
Heptachlor..............................................       1 (0.454)
Heptachlor epoxide......................................       1 (0.454)
Hexachlorobenzene.......................................       10 (4.54)
Hexachlorobutadiene.....................................       1 (0.454)
Hexachlorocyclohexane (gamma isomer)....................       1 (0.454)
Hexachlorocyclopentadiene...............................       10 (4.54)
Hexachloroethane........................................      100 (45.4)
1,2,3,4,10-10-Hexachloro-1,4,4a,5,8,8a-hexahydro-1,4:5,8-               
 endo,exo-dimethanonaphthalene..........................       1 (0.454)
Hexachlorophene.........................................      100 (45.4)
Hexachloropropene.......................................      1000 (454)
Hexaethyl tetraphosphate................................      100 (45.4)
Hexamethylene-1,6-diisocyanate..........................      100 (45.4)
Hexamethylphosphoramide.................................       1 (0.454)
Hexane..................................................     5000 (2270)
Hydrazine...............................................       1 (0.454)
Hydrazine, 1,2-diethyl-.................................       10 (4.54)
Hydrazine, 1,1-dimethyl-................................       10 (4.54)
Hydrazine, 1,2-dimethyl-................................       1 (0.454)
Hydrazine, 1,2-diphenyl-................................       10 (4.54)
Hydrazine, methyl-......................................       10 (4.54)
Hydrazinecarbothioamide.................................      100 (45.4)
Hydrochloric acid.......................................     5000 (2270)
Hydrocyanic acid........................................       10 (4.54)
Hydrofluoric acid.......................................      100 (45.4)
Hydrogen chloride.......................................     5000 (2270)
Hydrogen cyanide........................................       10 (4.54)
Hydrogen fluoride.......................................      100 (45.4)
Hydrogen phosphide......................................      100 (45.4)
Hydrogen sulfide........................................      100 (45.4)
Hydrogen sulfide H2S....................................      100 (45.4)
Hydroperoxide, 1-methyl-1-phenylethyl-..................       10 (4.54)
Hydroquinone............................................      100 (45.4)
2-Imidazolidinethione...................................       10 (4.54)
Indeno(1,2,3-cd)pyrene..................................      100 (45.4)
1,3-Isobenzofurandione..................................     5000 (2270)
Isobutyl alcohol........................................     5000 (2270)
Isodrin.................................................       1 (0.454)
Isophorone..............................................     5000 (2270)
Isoprene................................................      100 (45.4)
Isopropanolamine dodecylbenzene sulfonate...............      1000 (454)
Isosafrole..............................................      100 (45.4)
3(2H)-Isoxazolone, 5-(aminomethyl)-.....................      1000 (454)
Keponedecachloroc-tahydro-..............................       1 (0.454)
Lasiocarpine............................................       10 (4.54)
Lead  cents.............................................       10 (4.54)

[[Page 250]]

                                                                        
Lead acetate............................................       10 (4.54)
Lead arsenate...........................................       1 (0.454)
Lead, bis(acetato-O)tetrahydroxytri.....................       10 (4.54)
Lead chloride...........................................       10 (4.54)
Lead fluoborate.........................................       10 (4.54)
Lead fluoride...........................................       10 (4.54)
Lead iodide.............................................       10 (4.54)
Lead nitrate............................................       10 (4.54)
Lead phosphate..........................................       10 (4.54)
Lead stearate...........................................       10 (4.54)
Lead subacetate.........................................       10 (4.54)
Lead sulfate............................................       10 (4.54)
Lead sulfide............................................       10 (4.54)
Lead thiocyanate........................................       10 (4.54)
Lindane.................................................       1 (0.454)
Lithium chromate........................................       10 (4.54)
Malathion...............................................      100 (45.4)
Maleic acid.............................................     5000 (2270)
Maleic anhydride........................................     5000 (2270)
Maleic hydrazide........................................     5000 (2270)
Malononitrile...........................................      1000 (454)
MDI.....................................................     5000 (2270)
Melphalan...............................................       1 (0.454)
Mercaptodimethur........................................       10 (4.54)
Mercuric cyanide........................................       1 (0.454)
Mercuric nitrate........................................       10 (4.54)
Mercuric sulfate........................................       10 (4.54)
Mercuric thiocyanate....................................       10 (4.54)
Mercurous nitrate.......................................       10 (4.54)
Mercury.................................................       1 (0.454)
Mercury, (acetato-O)phenyl-.............................      100 (45.4)
Mercury fulminate.......................................       10 (4.54)
Methacrylonitrile.......................................      1000 (454)
Methanamine, N-methyl-..................................      1000 (454)
Methanamine, N-methyl-N-nitroso.........................       10 (4.54)
Methane, bromo-.........................................      1000 (454)
Methane, chloro-........................................      100 (45.4)
Methane, chloromethoxy-.................................       1 (0.454)
Methane, dibromo-.......................................      1000 (454)
Methane, dichloro-......................................      1000 (454)
Methane, dichlorodifluoro-..............................     5000 (2270)
Methane, iodo-..........................................      100 (45.4)
Methane, isocyanato-....................................       10 (4.54)
Methane, oxybis(chloro-.................................       1 (0.454)
Methane, tetrachloro-...................................       10 (4.54)
Methane, tetranitro-....................................       10 (4.54)
Methane, tribromo-......................................      100 (45.4)
Methane, trichloro-.....................................       10 (4.54)
Methane, trichlorofluoro-...............................     5000 (2270)
Methanesulfenyl chloride, trichloro-....................      100 (45.4)
Methanesulfonic acid, ethyl ester.......................       1 (0.454)
Methanethiol............................................      100 (45.4)
6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-                     
 hexachloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide...........       1 (0.454)
Methanoic acid..........................................     5000 (2270)
4,7-Methano-1H-indene, 1,4,5,6,7,8,8-heptachloro-                       
 a,4,7,7a-tetrahydro-...................................       1 (0.454)
4,7-Methano-1H-indene, 1,4,5,6,7,8,8-octachloro-                        
 2,3,3a,4,7,7a-hexahydro-...............................       1 (0.454)
Methanol................................................     5000 (2270)
Methapyrilene...........................................     5000 (2270)
1,3,4-Metheno-2H-cyclobutal[cd]-pentalen-2-one,                         
 1,1a,3,3a,4,5,5,5a,5b,6-decachloroctahydro-............       1 (0.454)
Methomyl................................................      100 (45.4)
Methoxychlor............................................       1 (0.454)
Methyl alcohol..........................................     5000 (2270)
Methylamine @...........................................      100 (45.4)
Methyl bromide..........................................      1000 (454)
1-Methylbutadiene.......................................      100 (45.4)
Methyl chloride.........................................      100 (45.4)
Methyl chlorocarbonate..................................      1000 (454)
Methyl chloroform.......................................      1000 (454)
Methyl chloroformate....................................      1000 (454)
Methylchloromethyl ether @..............................       1 (0.454)

[[Page 251]]

                                                                        
3-Methylcholanthrene....................................       10 (4.54)
4,4'-Methylenebis(2-chloroaniline)......................       10 (4.54)
Methylene bromide.......................................      1000 (454)
Methylene chloride......................................      1000 (454)
4,4'-Methylenedianiline.................................       10 (4.54)
Methylene diphenyl diisocyanate.........................     5000 (2270)
Methylene oxide.........................................      100 (45.4)
Methyl ethyl ketone (MEK)...............................     5000 (2270)
Methyl ethyl ketone peroxide............................       10 (4.54)
Methyl hydrazine........................................       10 (4.54)
Methyl iodide...........................................      100 (45.4)
Methyl isobutyl ketone..................................     5000 (2270)
Methyl isocyanate.......................................       10 (4.54)
2-Methyllactonitrile....................................       10 (4.54)
Methyl mercaptan........................................      100 (45.4)
Methyl methacrylate.....................................      1000 (454)
Methyl parathion........................................      100 (45.4)
4-Methyl-2-pentanone....................................     5000 (2270)
Methyl tert-butyl ether.................................      1000 (454)
Methylthiouracil........................................       10 (4.54)
Mevinphos...............................................       10 (4.54)
Mexacarbate.............................................      1000 (454)
Mitomycin C.............................................       10 (4.54)
MNNG....................................................       10 (4.54)
Monoethylamine..........................................      100 (45.4)
Monomethylamine.........................................      100 (45.4)
Muscimol................................................      1000 (454)
Naled...................................................       10 (4.54)
5,12-Naphthacenedione, 8-acetyl-10-[3-amino-2,3,6-                      
 trideoxy-alpha-L-lyxo-hexopyranosyl) oxy]-7,8,9,10-                    
 tetrahydro-6,8,11-trihydroxy-1-methoxy-, (8S-cis)-.....       10 (4.54)
Naphthalenamine, N,N-bis(2-chloroethyl)-................      100 (45.4)
Naphthalene.............................................      100 (45.4)
Naphthalene, 2-chloro-..................................     5000 (2270)
1,4-Naphthalenedione....................................     5000 (2270)
2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'- dimethyl-                  
 (l,1'-biphenyl)-4,4'-diyl)-bis(azo)]bis(5-amino-4-                     
 hydroxy)-tetrasodium salt..............................       10 (4.54)
Naphthenic acid.........................................      100 (45.4)
1,4-Naphthoquinone......................................     5000 (2270)
alpha-Naphthylamine.....................................      100 (45.4)
beta-Naphthylamine......................................       1 (0.454)
1-Naphthylamine.........................................      100 (45.4)
2-Naphthylamine.........................................       1 (0.454)
alpha-Naphthylthiourea..................................      100 (45.4)
Nickel  cents...........................................      100 (45.4)
Nickel ammonium sulfate.................................      100 (45.4)
Nickel carbonyl.........................................       10 (4.54)
Nickel carbonyl Ni(CO)4,(T-4)-..........................       10 (4.54)
Nickel chloride.........................................      100 (45.4)
Nickel cyanide..........................................       10 (4.54)
Nickel cyanide Ni(CN)2..................................       10 (4.54)
Nickel hydroxide........................................       10 (4.54)
Nickel nitrate..........................................      100 (45.4)
Nickel sulfate..........................................      100 (45.4)
Nicotine and salts......................................      100 (45.4)
Nitric acid.............................................      1000 (454)
Nitric acid, thallium(1+) salt..........................      100 (45.4)
Nitric oxide............................................       10 (4.54)
p-Nitroaniline..........................................     5000 (2270)
Nitrobenzene............................................      1000 (454)
4-nitrobiphenyl.........................................       10 (4.54)
Nitrogen dioxide........................................       10 (4.54)
Nitrogen oxide NO.......................................       10 (4.54)
Nitrogen oxide NO2......................................       10 (4.54)
Nitroglycerine..........................................       10 (4.54)
Nitrophenol (mixed).....................................      100 (45.4)
    m-..................................................  ..............
    o-..................................................  ..............
    p-..................................................  ..............
o-Nitrophenol...........................................      100 (45.4)
p-Nitrophenol...........................................      100 (45.4)

[[Page 252]]

                                                                        
2-Nitrophenol...........................................      100 (45.4)
4-Nitrophenol...........................................      100 (45.4)
2-Nitropropane..........................................       10 (4.54)
N-Nitrosodi-n-butylamine................................       10 (4.54)
N-Nitrosodiethanolamine.................................       1 (0.454)
N-Nitrosodiethylamine...................................       1 (0.454)
N-Nitrosodimethylamine..................................       10 (4.54)
N-Nitrosodiphenylamine..................................      100 (45.4)
N-Nitroso-N-ethylurea...................................       1 (0.454)
N-Nitroso-N-methylurea..................................       1 (0.454)
N-Nitroso-N-methylurethane..............................       1 (0.454)
N-Nitrosomethylvinylamine...............................       10 (4.54)
n-Nitrosomorpholine.....................................       1 (0.454)
N-Nitrosopiperidine.....................................       10 (4.54)
N-Nitrosopyrrolidine....................................       1 (0.454)
Nitrotoluene............................................      1000 (454)
    m-Nitrotoluene......................................  ..............
    o-Nitrotoluene......................................  ..............
    p-Nitrotoluene......................................  ..............
5-Nitro-o-toluidine.....................................      100 (45.4)
Octamethylpyrophosphoramide.............................      100 (45.4)
Osmium oxide OsO4 (T-4)-................................      1000 (454)
Osmium tetroxide........................................      1000 (454)
7-Oxabicyclo[2.2.1]heptane-2,3-dicarboxylic acid........      1000 (454)
1,2-Oxathiolane, 2,2-dioxide............................       10 (4.54)
2H-1,3,2-Oxazaphosphorin-2-amine, N,N-bis(2-                            
 chloroethyl)tetrahydro-, 2-oxide.......................       10 (4.54)
Oxirane.................................................       10 (4.54)
Oxiranecarboxyaldehyde..................................       10 (4.54)
Oxirane, (chloromethyl)-................................      100 (45.4)
Paraformaldehyde........................................      1000 (454)
Paraldehyde.............................................      1000 (454)
Parathion...............................................       10 (4.54)
Pentachlorobenzene......................................       10 (4.54)
Pentachloroethane.......................................       10 (4.54)
Pentachloronitrobenzene (PCNB)..........................      100 (45.4)
Pentachlorophenol.......................................       10 (4.54)
1,3-Pentadiene..........................................      100 (45.4)
Perchloroethylene.......................................      100 (45.4)
Perchloromethyl mercaptan @.............................      100 (45.4)
Phenacetin..............................................      100 (45.4)
Phenanthrene............................................     5000 (2270)
Phenol..................................................      1000 (454)
Phenol, 2-chloro-.......................................      100 (45.4)
Phenol, 4-chloro-3-methyl-..............................     5000 (2270)
Phenol, 2-cyclohexyl-4,6-dinitro-.......................      100 (45.4)
Phenol, 2,4-dichloro-...................................      100 (45.4)
Phenol, 2,6-dichloro-...................................      100 (45.4)
Phenol, 4,4'-(1,2-diethyl-1,2-ethenediyl)bis-, (E)......       1 (0.454)
Phenol, 2,4-dimethyl-...................................      100 (45.4)
Phenol, 2,4-dinitro-....................................       10 (4.54)
Phenol, methyl-.........................................      100 (45.4)
Phenol, 2-methyl-4,6-dinitro-...........................       10 (4.54)
Phenol, 2,2'-methylenebis[3,4,6-trichloro-..............      100 (45.4)
Phenol, 2-(1-methylpropyl)-4,6-dinitro..................      1000 (454)
Phenol, 4-nitro-........................................      100 (45.4)
Phenol, pentachloro-....................................       10 (4.54)
Phenol, 2,3,4,6-tetrachloro-............................       10 (4.54)
Phenol, 2,4,5-trichloro-................................       10 (4.54)
Phenol, 2,4,6-trichloro-................................       10 (4.54)
Phenol, 2,4,6-trinitro-, ammonium salt..................       10 (4.54)
L-Phenylalanine, 4-[bis(2-chloroethyl)aminol]...........       1 (0.454)
p-Phenylenedimine.......................................     5000 (2270)
1,10-(1,2-Phenylene)pyrene..............................      100 (45.4)
Phenyl mercaptan @......................................      100 (45.4)
Phenylmercuric acetate..................................      100 (45.4)
Phenylthiourea..........................................      100 (45.4)
Phorate.................................................       10 (4.54)
Phosgene................................................       10 (4.54)
Phosphine...............................................      100 (45.4)
Phosphoric acid.........................................     5000 (2270)

[[Page 253]]

                                                                        
Phosphoric acid, diethyl 4-nitrophenyl ester............      100 (45.4)
Phosphoric acid, lead(2+) salt (2:3)....................       10 (4.54)
Phosphorodithioic acid, O,O-diethyl S-[2-                               
 (ethylthio)ethyl]ester.................................       1 (0.454)
Phosphorodithioic acid, O,O-diethyl S-(ethylthio),                      
 methyl ester...........................................       10 (4.54)
Phosphorodithioic acid, O,O-diethyl S-methyl ester......     5000 (2270)
Phosphorodithioic acid, O,O-dimethyl S-[2 (methylamino)-                
 2-oxoethyl] ester......................................       10 (4.54)
Phosphorofluoridic acid, bis(1-methylethyl) ester.......      100 (45.4)
Phosphorothioic acid, O,O-diethyl O-(4-nitrophenyl)                     
 ester..................................................       10 (4.54)
Phosphorothioic acid, O,O-diethyl O-pyrazinyl ester.....      100 (45.4)
Phosphorothioic acid, O,O-dimethyl O-(4-nitrophenyl)                    
 ester..................................................      100 (45.4)
Phosphorothioic acid, O,[4-[(dimethylamino)sulfonyl]                    
 phenyl] O,O-dimethyl ester.............................      1000 (454)
Phosphorus..............................................       1 (0.454)
Phosphorus oxychloride..................................      1000 (454)
Phosphorus pentasulfide.................................      100 (45.4)
Phosphorus sulfide......................................      100 (45.4)
Phosphorus trichloride..................................      1000 (454)
Phthalic anhydride......................................     5000 (2270)
2-Picoline..............................................     5000 (2270)
Piperidine, 1-nitroso-..................................       10 (4.54)
Plumbane, tetraethyl-...................................       10 (4.54)
POLYCHLORINATED BIPHENYLS (PCBs)........................       1 (0.454)
Potassium arsenate......................................       1 (0.454)
Potassium arsenite......................................       1 (0.454)
Potassium bichromate....................................       10 (4.54)
Potassium chromate......................................       10 (4.54)
Potassium cyanide.......................................       10 (4.54)
Potassium cyanide K(CN).................................       10 (4.54)
Potassium hydroxide.....................................      1000 (454)
Potassium permanganate..................................      100 (45.4)
Potassium silver cyanide................................       1 (0.454)
Pronamide...............................................     5000 (2270)
Propanal, 2-methyl-2-(methylthio)-,O-                                   
 [(methylamino)carbonyl]oxime...........................       1 (0.454)
1-Propanamine...........................................     5000 (2270)
1-Propanamine, N-nitroso-N-propyl-......................       10 (4.54)
1-Propanamine, N-propyl-................................     5000 (2270)
Propane, 1,2-dibromo-3-chloro-..........................       1 (0.454)
Propane, 1,2-dichloro-..................................      1000 (454)
Propane, 2-nitro-.......................................       10 (4.54)
Propane, 2,2'-oxybis [2-chloro-.........................      1000 (454)
1,3-Propane sultone.....................................       10 (4.54)
Propanedinitrile........................................      1000 (454)
Propanenitrile..........................................       10 (4.54)
Propanenitrile, 3-chloro-...............................      1000 (454)
Propanenitrile, 2-hydroxy-2-methyl-.....................       10 (4.54)
1,2,3-Propanetriol, trinitrate-.........................       10 (4.54)
1-Propanol, 2,3-dibromo-, phosphate (3:1)...............       10 (4.54)
1-Propanol, 2-methyl-...................................     5000 (2270)
2-Propanone.............................................     5000 (2270)
2-Propanone, 1-bromo-...................................      1000 (454)
Propargite..............................................       10 (4.54)
Propargyl alcohol.......................................      1000 (454)
2-Propenal..............................................       1 (0.454)
2-Propenamide...........................................     5000 (2270)
1-Propene, 1,3-dichloro-................................      100 (45.4)
1-Propene, 1,1,2,3,3,3-hexachloro-......................      1000 (454)
2-Propenenitrile........................................      100 (45.4)
2-Propenenitrile, 2-methyl-.............................      1000 (454)
2-Propenoic acid........................................     5000 (2270)
2-Propenoic acid, ethyl ester...........................      1000 (454)
2-Propenoic acid, 2-methyl-, ethyl ester................      1000 (454)
2-Propenoic acid, 2-methyl-, methyl ester...............      1000 (454)
2-Propen-1-ol...........................................      100 (45.4)
beta-Propioaldehyde.....................................      1000 (454)
Propionic acid..........................................     5000 (2270)
Propionic acid, 2-(2,4,5-trichlorophenoxy)-.............      100 (45.4)
Propionic anhydride.....................................     5000 (2270)
Propoxur (baygon).......................................      100 (45.4)
n-Propylamine...........................................     5000 (2270)
Propylene dichloride....................................      1000 (454)
Propylene oxide.........................................      100 (45.4)

[[Page 254]]

                                                                        
1,2-Propylenimine.......................................       1 (0.454)
2-Propyn-1-ol...........................................      1000 (454)
Pyrene..................................................     5000 (2270)
Pyrethrins..............................................       1 (0.454)
3,6-Pyridazinedione, 1,2-dihydro-.......................     5000 (2270)
4-Pyridinamine..........................................      1000 (454)
Pyridine................................................      1000 (454)
Pyridine, 2-methyl-.....................................     5000 (2270)
Pyridine, 3-(1-methyl-2-pyrrolidinyl)-, (S).............      100 (45.4)
2,4-(1H,3H)-Pyrimidinedione, 5-[bis(2-chloroethyl)amino]-               
 .......................................................       10 (4.54)
4(1H)-Pyrimidinone, 2,3-dihydro-6-methyl-2-thioxo-......       10 (4.54)
Pyrrolidine, 1-nitroso-.................................       1 (0.454)
Quinoline...............................................     5000 (2270)
RADIONUCLIDES...........................................     See Table 2
Reserpine...............................................     5000 (2270)
Resorcinol..............................................     5000 (2270)
Saccharin and salts.....................................      100 (45.4)
Safrole.................................................      100 (45.4)
Selenious acid..........................................       10 (4.54)
Selenious acid, dithallium(1+) salt.....................      1000 (454)
Selenium  cents.........................................      100 (45.4)
Selenium dioxide........................................       10 (4.54)
Selenium oxide..........................................       10 (4.54)
Selenium sulfide........................................       10 (4.54)
Selenium sulfide SeS2...................................       10 (4.54)
Selenourea..............................................      1000 (454)
L-Serine, diazoacetate (ester)..........................       1 (0.454)
Silver  cents...........................................      1000 (454)
Silver cyanide..........................................       1 (0.454)
Silver cyanide Ag(CN)...................................       1 (0.454)
Silver nitrate..........................................       1 (0.454)
Silvex(2,4,5-TP)........................................      100 (45.4)
Sodium..................................................       10 (4.54)
Sodium arsenate.........................................       1 (0.454)
Sodium arsenite.........................................       1 (0.454)
Sodium azide............................................      1000 (454)
Sodium bichromate.......................................       10 (4.54)
Sodium bifluoride.......................................      100 (45.4)
Sodium bisulfite........................................     5000 (2270)
Sodium chromate.........................................       10 (4.54)
Sodium cyanide..........................................       10 (4.54)
Sodium cyanide Na(CN)...................................       10 (4.54)
Sodium dodecylbenzene sulfonate.........................      1000 (454)
Sodium fluoride.........................................      1000 (454)
Sodium hydrosulfide.....................................     5000 (2270)
Sodium hydroxide........................................      1000 (454)
Sodium hypochlorite.....................................      100 (45.4)
Sodium methylate........................................      1000 (454)
Sodium nitrite..........................................      100 (45.4)
Sodium phosphate, dibasic...............................     5000 (2270)
Sodium phosphate, tribasic..............................     5000 (2270)
Sodium selenite.........................................      100 (45.4)
Streptozotocin..........................................       1 (0.454)
Strontium chromate......................................       10 (4.54)
Strychnidin-10-one......................................       10 (4.54)
Strychnidin-10-one, 2,3-dimethoxy-......................      100 (45.4)
Strychnine and salts....................................       10 (4.54)
Styrene.................................................      1000 (454)
Styrene oxide...........................................      100 (45.4)
Sulfur chloride @.......................................      1000 (454)
Sulfur monochloride.....................................      1000 (454)
Sulfur phosphide........................................      100 (45.4)
Sulfuric acid...........................................      1000 (454)
Sulfuric acid, dimethyl ester...........................      100 (45.4)
Sulfuric acid, dithallium(I+) salt......................      100 (45.4)
2,4,5-T.................................................      1000 (454)
2,4,5-T acid............................................      1000 (454)
2,4,5-T amines..........................................     5000 (2270)
2,4,5-T esters..........................................      1000 (454)
2,4,5-T salts...........................................      1000 (454)

[[Page 255]]

                                                                        
TDE.....................................................       1 (0.454)
1,2,4,5-Tetrachlorobenzene..............................     5000 (2270)
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)..............       1 (0.454)
1,1,1,2-Tetrachloroethane...............................      100 (45.4)
1,1,2,2-Tetrachloroethane...............................      100 (45.4)
Tetrachloroethane @.....................................      100 (45.4)
Tetrachloroethene.......................................      100 (45.4)
Tetrachloroethylene.....................................      100 (45.4)
2,3,4,6-Tetrachlorophenol...............................       10 (4.54)
Tetraethyl lead.........................................       10 (4.54)
Tetraethyl pyrophosphate................................       10 (4.54)
Tetraethyldithiopyrophosphate...........................      100 (45.4)
Tetrahydrofuran.........................................      1000 (454)
Tetranitromethane.......................................       10 (4.54)
Tetraphosphoric acid, hexaethyl ester...................      100 (45.4)
Thallic oxide...........................................      100 (45.4)
Thallium  cents.........................................      1000 (454)
Thallium(I) acetate.....................................      100 (45.4)
Thallium(I) carbonate...................................      100 (45.4)
Thallium(I) chloride....................................      100 (45.4)
Thallium chloride TlCl..................................      100 (45.4)
Thallium(I) nitrate.....................................      100 (45.4)
Thallium oxide T1203....................................      100 (45.4)
Thallium selenite.......................................      1000 (454)
Thallium(I) sulfate.....................................      100 (45.4)
Thioacetamide...........................................       10 (4.54)
Thiodiphosphoric acid, tetraethyl ester.................      100 (45.4)
Thiofanox...............................................      100 (45.4)
Thioimidodicarbonic diamide [(H2N)C(S)]2NH..............      100 (45.4)
Thiomethanol............................................      100 (45.4)
Thioperoxydicarbonic diamide [(H2N)C(S)]2S2, tetramethyl-               
 .......................................................       10 (4.54)
Thiophenol..............................................      100 (45.4)
Thiosemicarbazide.......................................      100 (45.4)
Thiourea................................................       10 (4.54)
Thiourea, (2-chlorophenyl)-.............................      100 (45.4)
Thiourea, 1-naphthalenyl-...............................      100 (45.4)
Thiourea, phenyl-.......................................      100 (45.4)
Thiram..................................................       10 (4.54)
Titanium tetrachloride..................................      1000 (454)
Toluene.................................................      1000 (454)
Toluenediamine..........................................       10 (4.54)
Toluene diisocyanate....................................      100 (45.4)
o-Toluidine.............................................      100 (45.4)
p-Toluidine.............................................      100 (45.4)
o-Toluidine hydrochloride...............................      100 (45.4)
Toxaphene...............................................       1 (0.454)
2,4,5-TP acid...........................................      100 (45.4)
2,4,5-TP acid esters....................................      100 (45.4)
1H-1,2,4-Triazol-3-amine................................       10 (4.54)
Trichlorfon.............................................      100 (45.4)
1,2,4-Trichlorobenzene..................................      100 (45.4)
1,1,1-Trichloroethane...................................      1000 (454)
1,1,2-Trichloroethane...................................      100 (45.4)
Trichloroethene.........................................      100 (45.4)
Trichloroethylene.......................................      100 (45.4)
Trichloromethanesulfenyl chloride.......................      100 (45.4)
Trichloromonofluoromethane..............................     5000 (2270)
Trichlorophenol.........................................       10 (4.54)
    2,3,4-Trichlorophenol...............................  ..............
    2,3,5-Trichlorophenol...............................                
    2,3,6-Trichlorophenol...............................  ..............
    2,4,5-Trichlorophenol...............................  ..............
    2,4,6-Trichlorophenol...............................  ..............
    3,4,5-Trichlorophenol...............................  ..............
2,4,5-Trichlorophenol...................................       10 (4.54)
2,4,6-Trichlorophenol...................................       10 (4.54)
Triethanolamine dodecylbenzene sulfonate................      1000 (454)
Triethylamine...........................................     5000 (2270)
Trifluralin.............................................       10 (4.54)
Trimethylamine..........................................      100 (45.4)

[[Page 256]]

                                                                        
2,2,4-Trimethylpentane..................................      1000 (454)
1,3,5-Trinitrobenzene...................................       10 (4.54)
1,3,5-Trioxane, 2,4,6-trimethyl-........................      1000 (454)
Tris(2,3-dibromopropyl) phosphate.......................       10 (4.54)
Trypan blue.............................................       10 (4.54)
Uracil mustard..........................................       10 (4.54)
Uranyl acetate..........................................      100 (45.4)
Uranyl nitrate..........................................      100 (45.4)
Urea, N-ethyl-N-nitroso-................................       1 (0.454)
Urea, N-methyl-N-nitroso-...............................       1 (0.454)
Vanadic acid, ammonium salt.............................      1000 (454)
Vanadium oxide V205.....................................      1000 (454)
Vanadium pentoxide......................................      1000 (454)
Vanadyl sulfate.........................................      1000 (454)
Vinyl acetate...........................................     5000 (2270)
Vinyl acetate monomer...................................     5000 (2270)
Vinylamine, N-methyl-N-nitroso-.........................       10 (4.54)
Vinyl bromide...........................................      100 (45.4)
Vinyl chloride..........................................       1 (0.454)
Vinylidene chloride.....................................      100 (45.4)
Warfarin, & salts, when present at concentrations                       
 greater than 0.3%......................................      100 (45.4)
Xylene..................................................      100 (45.4)
m-Xylene................................................      1000 (454)
o-Xylene................................................      1000 (454)
p-Xylene................................................      100 (45.4)
Xylene (mixed)..........................................      100 (45.4)
Xylenes (isomers and mixture)...........................      100 (45.4)
Xylenol.................................................      1000 (454)
Yohimban-16-carboxylic acid,11,17-dimethoxy-18-[(3,4,5-                 
 trimethoxybenzoyl)oxy]-, methyl ester                                  
 (3beta,16beta,17alpha,18beta,20alpha)-.................     5000 (2270)
Zinc  cents.............................................      1000 (454)
Zinc acetate............................................      1000 (454)
Zinc ammonium chloride..................................      1000 (454)
Zinc borate.............................................      1000 (454)
Zinc bromide............................................      1000 (454)
Zinc carbonate..........................................      1000 (454)
Zinc chloride...........................................      1000 (454)
Zinc cyanide............................................       10 (4.54)
Zinc cyanide Zn(CN)2....................................       10 (4.54)
Zinc fluoride...........................................      1000 (454)
Zinc formate............................................      1000 (454)
Zinc hydrosulfite.......................................      1000 (454)
Zinc nitrate............................................      1000 (454)
Zinc phenolsulfonate....................................     5000 (2270)
Zinc phosphide..........................................      100 (45.4)
Zinc phosphide Zn3P2, when present at concentrations                    
 greater than 10%.......................................      100 (45.4)
Zinc silicofluoride.....................................     5000 (2270)
Zinc sulfate............................................      1000 (454)
Zirconium nitrate.......................................     5000 (2270)
Zirconium potassium fluoride............................      1000 (454)
Zirconium sulfate.......................................     5000 (2270)
Zirconium tetrachloride.................................     5000 (2270)
D001 Unlisted Hazardous Wastes Characteristic of                        
 Ignitability...........................................      100 (45.4)
D002 Unlisted Hazardous Wastes Characteristic of                        
 Corrosivity............................................      100 (45.4)
D003 Unlisted Hazardous Wastes Characteristic of                        
 Reactivity.............................................      100 (45.4)
D004-D043 Unlisted Hazardous Wastes Characteristic of                   
 Toxicity...............................................  ..............
    D004 Arsenic........................................       1 (0.454)
    D005 Barium.........................................      1000 (454)
    D006 Cadmium........................................       10 (4.54)
    D007 Chromium.......................................       10 (4.54)
    D008 Lead...........................................       10 (4.54)
    D009 Mercury........................................       1 (0.454)
    D010 Selenium.......................................       10 (4.54)
    D011 Silver.........................................       1 (0.454)
    D012 Endrin.........................................       1 (0.454)
    D013 Lindane........................................       1 (0.454)
    D014 Methoxychlor...................................       1 (0.454)
    D015 Toxaphene......................................       1 (0.454)
    D016 2,4-D..........................................      100 (45.4)
    D017 2,4,5-TP.......................................      100 (45.4)

[[Page 257]]

                                                                        
    D018 Benzene........................................       10 (4.54)
    D019 Carbon tetrachloride...........................       10 (4.54)
    D020 Chlordane......................................       1 (0.454)
    D021 Chlorobenzene..................................      100 (45.4)
    D022 Chloroform.....................................       10 (4.54)
D023 o-Cresol...........................................      100 (45.4)
D024 m-Cresol...........................................      100 (45.4)
D025 p-Cresol...........................................      100 (45.4)
D026 Cresol.............................................      100 (45.4)
    D027 1,4-Dichlorobenzene............................      100 (45.4)
    D028 1,2-Dichloroethane.............................      100 (45.4)
    D029 1,1-Dichloroethylene...........................      100 (45.4)
    D030 2,4-Dinitrotoluene.............................       10 (4.54)
    D031 Heptachlor (and hydroxide).....................       1 (0.454)
    D032 Hexachlorobenzene..............................       10 (4.54)
    D033 Hexachlorobutadiene............................       1 (0.454)
    D034 Hexachloroethane...............................      100 (45.4)
    D035 Methyl ethyl ketone............................     5000 (2270)
    D036 Nitrobenzene...................................      1000 (454)
    D037 Pentachlorophenol..............................       10 (4.54)
    D038 Pyridine.......................................      1000 (454)
    D039 Tetrachloroethylene............................      100 (45.4)
    D040 Tricholorethylene..............................      100 (45.4)
    D041 2,4,5-Trichlorophenol..........................       10 (4.54)
    D042 2,4,6-Trichlorophenol..........................       10 (4.54)
    D043 Vinyl chloride.................................       1 (0.454)
F001....................................................                
The following spent halogenated solvents used in                        
 degreasing; all spent solvent mixtures/blends used in                  
 degreasing containing, before use, a total of ten                      
 percent or more (by volume) of one or more of the below                
 listed halogenated solvents or those solvents listed in                
 F002, F004 and F005; and still bottoms from the                        
 recovery of these spent solvents and spent solvent                     
 mixtures...............................................       10 (4.54)
    (a) Tetrachloroethylene.............................      100 (45.4)
    (b) Trichloroethylene...............................      100 (45.4)
    (c) Methylene chloride..............................      1000 (454)
    (d) 1,1,1-Trichloroethane...........................      1000 (454)
    (e) Carbon tetrachloride............................       10 (4.54)
    (f) Chlorinated fluorocarbons.......................     5000 (2270)
F002....................................................                
The following spent halogenated solvents; all spent                     
 solvent mixtures/blends containing, before use, a total                
 of ten percent or more (by volume) of one or more of                   
 the below listed halogenated solvents or those listed                  
 in F001, F004, F005; and still bottoms from the                        
 recovery of these spent solvents and spent solvent                     
 mixtures...............................................       10 (4.54)
    (a) Tetrachloroethylene.............................      100 (45.4)
    (b) Methylene chloride..............................      1000 (454)
    (c) Trichloroethylene...............................      100 (45.4)
    (d) 1,1,1-Trichloroethane...........................      1000 (454)
    (e) Chlorobenzene...................................      100 (45.4)
    (f) 1,1,2-Trichloro-1,2,2-trifluoroethane...........     5000 (2270)
    (g) o-Dichlorobenzene...............................      100 (45.4)
    (h) Trichlorofluoromethane..........................     5000 (2270)
    (i) 1,1,2 Trichloroethane...........................      100 (45.4)
F003....................................................                
The following spent non-halogenated solvents and                        
 solvents:..............................................      100 (45.4)
    (a) Xylene..........................................      1000 (454)
    (b) Acetone.........................................     5000 (2270)
    (c) Ethyl acetate...................................     5000 (2270)
    (d) Ethylbenzene....................................      1000 (454)
    (e) Ethyl ether.....................................      100 (45.4)
    (f) Methyl isobutyl ketone..........................     5000 (2270)
    (g) n-Butyl alcohol.................................     5000 (2270)
    (h) Cyclohexanone...................................     5000 (2270)
    (i) Methanol........................................     5000 (2270)
F004....................................................      100 (45.4)
The following spent non-halogenated solvents and the                    
 stillbottoms from the recovery of these solvents:                      
    (a) Cresols/Cresylic acid...........................      1000 (454)
    (b) Nitrobenzene....................................      100 (45.4)
F005....................................................                
The following spent non-halogenated solvents and the                    
 stillbottoms from the recovery of these solvents:......      100 (45.4)
    (a) Toluene.........................................      1000 (454)
    (b) Methyl ethyl ketone.............................     5000 (2270)
    (c) Carbon disulfide................................      100 (45.4)

[[Page 258]]

                                                                        
    (d) Isobutanol......................................     5000 (2270)
    (e) Pyridine........................................      1000 (454)
F006....................................................                
Wastewater treatment sludges from electroplating                        
 operations except from the following processes: (1)                    
 sulfuric acid anodizing of aluminum, (2) tin plating on                
 carbon steel, (3) zinc plating (segregated basis) on                   
 carbonsteel, (4) aluminum or zinc-aluminum plating on                  
 carbon steel, (5) cleaning/stripping associated with                   
 tin, zinc and aluminum plating on carbon steel, and (6)                
 chemical etching and milling of aluminum...............       10 (4.54)
F007....................................................                
Spent cyanide plating bath solutions from electroplating                
 operations.............................................       10 (4.54)
F008....................................................                
Plating bath residues from the bottom of plating baths                  
 from electroplating operations where cyanides are used                 
 in the process.........................................       10 (4.54)
F009....................................................                
Spent stripping and cleaning bath solutions from                        
 electroplating operations where cyanides are used in                   
 the process............................................       10 (4.54)
F010....................................................                
Quenching bath residues from oil baths from metal heat                  
 treating operations where cyanides are used in the                     
 process................................................       10 (4.54)
F011....................................................                
Spent cyanide solutions from salt bath pot cleaning from                
 metal heat treating operations (except for precious                    
 metals heat treating spent cyanide solutions from salt                 
 bath pot cleaning).....................................       10 (4.54)
F012....................................................                
Quenching wastewater treatment sludges from metal heat                  
 treating operations where cyanides are used in the                     
 process................................................       10 (4.54)
F019....................................................                
Wastewater treatment sludges from the chemical                          
 conversion coating of aluminum--except from zirconium                  
 phosphating in aluminum can washing when such                          
 phosphating is an exclusive conversion coating process.       10 (4.54)
F020....................................................                
Wastes (except wastewater and spent carbon from hydrogen                
 chloride purification) from the production or                          
 manufacturing use (as a reactant, chemical                             
 intermediate, or component in a formulating process) of                
 tri- or tetrachlorophenol, or of intermediates used to                 
 produce their pesticide derivatives. (This listing does                
 not include wastes from the production of                              
 hexachlorophene from highly purified 2,4,5-                            
 trichlorophenol.)......................................       1 (0.454)
F021....................................................                
Wastes (except wastewater and spent carbon from hydrogen                
 chloride purification) from the production or                          
 manufacturing use (as a reactant, chemical                             
 intermediate, or component in a formulating process) of                
 pentachlorophenol, or of intermediates used to produce                 
 its derivatives........................................       1 (0.454)
F022....................................................                
Wastes (except wastewater and spent carbon from hydrogen                
 chloride purification) from the manufacturing use (as a                
 reactant, chemical intermediate, or component in a                     
 formulating process) of tetra-, penta-, or                             
 hexachlorobenzenes under alkaline conditions...........       1 (0.454)
F023....................................................                
Wastes (except wastewater and spent carbon from hydrogen                
 chloride purification) from the production of materials                
 on equipment previously used for the production or                     
 manufacturing use (as a reactant, chemical                             
 intermediate, or component in a formulating process) of                
 tri- and tetrachlorophenols. (This listing does not                    
 include wastes from equipment used only for the                        
 production or use of hexachlorophene from highly                       
 purified 2,4,5-trichlorophenol.).......................       1 (0.454)
F024....................................................                
Wastes, including but not limited to distillation                       
 residues, heavy ends, tars, and reactor cleanout                       
 wastes, from the production of chlorinated                             
 aliphatichydrocarbons, having carbon content from one                  
 to five, utilizing free radical catalyzed processes.                   
 (This listing does not include light ends, spent                       
 filters and filter aids, spent dessicants(sic),                        
 wastewater, wastewater treatment sludges,spent                         
 catalysts, and wastes listed in 40 CFR 261.32.)........       1 (0.454)
F025....................................................                
Condensed light ends, spent filters and filter aids, and                
 spent desiccant wastes from the production of certain                  
 chlorinated aliphatic hydrocarbons, by free radical                    
 catalyzed processes. These chlorinated aliphatic                       
 hydrocarbons are those having carbon chain lengths                     
 ranging from one to and including five, with varying                   
 amounts and positions of chlorine substitution.........       1 (0.454)
F026....................................................                
Wastes (except wastewater and spent carbon from hydrogen                
 chloride purification) from the production of materials                
 on equipment previously used for the manufacturing use                 
 (as a reactant, chemical intermediate, or component in                 
 a formulating process) of tetra-, penta-, or                           
 hexachlorobenzene under alkaline conditions............       1 (0.454)
F027....................................................                
Discarded unused formulations containing tri-, tetra-,                  
 or pentachlorophenol or discarded unused formulations                  
 containing compounds derived from these chlorophenols.                 
 (This listing does not include formulations containing                 
 hexachlorophene synthesized from prepurified 2,4,5-                    
 trichlorophenol as the sole component.)................       1 (0.454)
F028....................................................                
Residues resulting from the incineration or thermal                     
 treatment of soil contaminated with EPA Hazardous Waste                
 Nos. F020, F021, F022, F023, F026, and F027............       1 (0.454)
F032....................................................       1 (0.454)

[[Page 259]]

                                                                        
F034....................................................       1 (0.454)
F035....................................................       1 (0.454)
F037....................................................       1 (0.454)
F038....................................................                
F039....................................................                
Multi source leachate...................................       1 (0.454)
K001....................................................                
Bottom sediment sludge from the treatment of wastewaters                
 from wood preserving processes that use creosote and/or                
 pentachlorophenol......................................                
K002....................................................                
Wastewater treatment sludge from the production of                      
 chrome yellow and orange pigments......................       10 (4.54)
K003....................................................                
Wastewater treatment sludge from the production of                      
 molybdate orange pigments..............................                
K004....................................................                
Wastewater treatment sludge from the production of zinc                 
 yellow pigments........................................       10 (4.54)
K005....................................................                
Wastewater treatment sludge from the production of                      
 chrome green pigments..................................                
K006....................................................                
Wastewater treatment sludge from the production of                      
 chrome oxide green pigments (anhydrous and hydrated)...       10 (4.54)
K007....................................................                
Wastewater treatment sludge from the production of iron                 
 blue pigments..........................................                
K008....................................................                
Oven residue from the production of chrome oxide green                  
 pigments...............................................       10 (4.54)
K009....................................................                
Distillation bottoms from the production of acetaldehyde                
 from ethylene..........................................       10 (4.54)
K010....................................................                
Distillation side cuts from the production of                           
 acetaldehyde from ethylene.............................       10 (4.54)
K011....................................................                
Bottom stream from the wastewater stripper in the                       
 production of acrylonitrile............................       10 (4.54)
K013....................................................                
Bottom stream from the acetonitrile column in the                       
 production of acrylonitrile............................       10 (4.54)
K014....................................................                
Bottoms from the acetonitrile purification column in the                
 production of acrylonitrile............................     5000 (2270)
K015....................................................                
Still bottoms from the distillation of benzyl chloride..       10 (4.54)
K016....................................................                
Heavy ends or distillation residues from the production                 
 of carbon tetrachloride................................       1 (0.454)
K017....................................................                
Heavy ends (still bottoms) from the purification column                 
 in the production of epichlorohydrin...................       10 (4.54)
K018....................................................                
Heavy ends from the fractionation column in ethyl                       
 chloride production....................................       1 (0.454)
K019....................................................                
Heavy ends from the distillation of ethylene dichloride                 
 in ethylene dichloride production......................       1 (0.454)
K020....................................................                
Heavy ends from the distillation of vinyl chloride in                   
 vinyl chloride monomer production......................       1 (0.454)
K021....................................................                
Aqueous spent antimony catalyst waste from                              
 fluoromethanes production..............................       10 (4.54)
K022....................................................                
Distillation bottom tars from the production of phenol/                 
 acetone from cumene....................................       1 (0.454)
K023....................................................                
Distillation light ends from the production of phthalic                 
 anhydride from naphthalene.............................     5000 (2270)
K024....................................................                
Distillation bottoms from the production of phthalic                    
 anhydride from naphthalene.............................     5000 (2270)
K025....................................................                
Distillation bottoms from the production of nitrobenzene                
 by the nitration of benzene............................       10 (4.54)
K026....................................................                
Stripping still tails from the production of methyl                     
 ethyl pyridines........................................      1000 (454)
K027....................................................                
Centrifuge and distillation residues from toluene                       
 diisocyanate production................................       10 (4.54)
K028....................................................                
Spent catalyst from the hydrochlorinator reactor in the                 
 production of 1,1,1-trichloroethane....................       1 (0.454)
K029....................................................                
Waste from the product steam stripper in the production                 
 of 1,1,1-trichloroethane...............................       1 (0.454)
K030....................................................                
Column bottoms or heavy ends from the combined                          
 production of trichloroethylene and perchloroethylene..       1 (0.454)
K031....................................................                
By-product salts generated in the production of MSMA and                
 cacodylic acid.........................................       1 (0.454)
K032....................................................                
Wastewater treatment sludge from the production of                      
 chlordane..............................................       10 (4.54)

[[Page 260]]

                                                                        
K033....................................................                
Wastewater and scrub water from the chlorination of                     
 cyclopentadiene in the production of chlordane.........       10 (4.54)
K034....................................................                
Filter solids from the filtration of                                    
 hexachlorocyclopentadiene in the production of                         
 chlordane..............................................       10 (4.54)
K035....................................................                
Wastewater treatment sludges generated in the production                
 of creosote............................................       1 (0.454)
K036....................................................                
Still bottoms from toluene reclamation distillation in                  
 the production ofdisulfoton............................       1 (0.454)
K037....................................................                
Wastewater treatment sludges from the production of                     
 disulfoton.............................................       1 (0.454)
K038....................................................                
Wastewater from the washing and stripping of phorate                    
 production.............................................       10 (4.54)
K039....................................................                
Filter cake from the filtration of                                      
 diethylphosphorodithioic acid in the production of                     
 phorate................................................       10 (4.54)
K040....................................................                
Wastewater treatment sludge from the production of                      
 phorate................................................       10 (4.54)
K041....................................................                
Wastewater treatment sludge from the production of                      
 toxaphene..............................................       1 (0.454)
K042....................................................                
Heavy ends or distillation residues from the                            
 distillation of tetrachlorobenzene in the production of                
 2,4,5-T................................................       10 (4.54)
K043....................................................                
2,6-dichlorophenol waste from the production of 2,4-D...       10 (4.54)
K044....................................................                
Wastewater treatment sludges from the manufacturing and                 
 processing of explosives...............................       10 (4.54)
K045....................................................                
Spent carbon from the treatment of wastewater containing                
 explosives.............................................       10 (4.54)
K046....................................................                
Wastewater treatment sludges from the manufacturing,                    
 formulation and loading of lead-based initiating                       
 compounds..............................................       10 (4.54)
K047....................................................                
Pink/red water from TNT operations......................       10 (4.54)
K048....................................................                
Dissolved air flotation (DAF) float from the petroleum                  
 refining industry......................................       10 (4.54)
K049....................................................                
Slop oil emulsion solids from the petroleum refining                    
 industry...............................................       10 (4.54)
K050....................................................                
Heat exchanger bundle cleaning sludge from the petroleum                
 refining industry......................................       10 (4.54)
K051....................................................                
API separator sludge from the petroleum refining                        
 industry...............................................       10 (4.54)
K052....................................................                
Tank bottoms (leaded) from the petroleum refining                       
 industry...............................................       10 (4.54)
K060....................................................                
Ammonia still lime sludge from coking operations........       1 (0.454)
K061....................................................                
Emission control dust/sludge from the primary production                
 of steel in electric furnaces..........................       10 (4.54)
K062....................................................                
Spent pickle liquor generated by steel finishing                        
 operations of facilities within the iron and steel                     
 industry...............................................       10 (4.54)
K064....................................................                
Acid plant blowdown slurry/sludge resulting from                        
 thickening of blowdoen slurry from primary copper                      
 production.............................................       10 (4.54)
K065....................................................                
Surface impoundment solids contained in and dredged from                
 surface impoundments at primary lead smelting                          
 facilities.............................................       10 (4.54)
K066....................................................                
Sludge from treatment of process wastewater and /or acid                
 plant blowdown from primary zinc production............       10 (4.54)
K069....................................................                
Emission control dust/sludge from secondary lead                        
 smelting...............................................       10 (4.54)
K071....................................................                
Brine purification muds from the mercury cell process in                
 chlorine production, where separately prepurified brine                
 is not used............................................       1 (0.454)
K073....................................................                
Chlorinated hydrocarbon waste from the purification step                
 of the diaphragm cell process using graphite anodes in                 
 chlorine production....................................       10 (4.54)
K083....................................................                
Distillation bottoms from aniline extraction............      100 (45.4)
K084....................................................                
Wastewater treatment sludges generated during the                       
 production of veterinary pharmaceuticals from arsenic                  
 or organo-arsenic compounds............................       1 (0.454)
K085....................................................                
Distillation or fractionation column bottoms from the                   
 production of chlorobenzenes...........................       10 (4.54)

[[Page 261]]

                                                                        
K086....................................................                
Solvent washes and sludges, caustic washes and sludges,                 
 or water washes and sludges from cleaning tubs and                     
 equipment used in the formulation of ink from pigments,                
 driers, soaps, and stabilizers containing chromium and                 
 lead...................................................       10 (4.54)
K087....................................................                
Decanter tank tar sludge from coking operations.........      100 (45.4)
K088....................................................       10 (4.54)
Spent potliners from primary aluminum reduction.                        
K090....................................................       10 (4.54)
Emission control dust or sludge from                                    
 ferrochromiumsilicon production                                        
K091....................................................       10 (4.54)
Emission control dust or sludge from ferrochromium                      
 production                                                             
K093....................................................                
Distillation light ends from the production of phthalic                 
 anhydride from ortho-xylene............................     5000 (2270)
K094....................................................                
Distillation bottoms from the production of phthalic                    
 anhydride from ortho-xylene............................     5000 (2270)
K095....................................................                
Distillation bottoms from the production of 1,1,1-                      
 trichloroethane........................................      100 (45.4)
K096....................................................                
Heavy ends from the heavy ends column from the                          
 production of 1,1,1-trichloroethane....................      100 (45.4)
K097....................................................                
Vacuum stripper discharge from the chlordane chlorinator                
 in the production of chlordane.........................       1 (0.454)
K098....................................................                
Untreated process wastewater from the production of                     
 toxaphene..............................................       1 (0.454)
K099....................................................                
Untreated wastewater from the production of 2,4-D.......       10 (4.54)
K100....................................................                
Waste leaching solution from acid leaching of emission                  
 control dust/sludge from secondary lead smelting.......       10 (4.54)
K101....................................................                
Distillation tar residues from the distillation of                      
 aniline-based compounds in the production of veterinary                
 pharmaceuticals from arsenic or organo-arsenic                         
 compounds..............................................       1 (0.454)
K102....................................................                
Residue from the use of activated carbon for                            
 decolorization in the production of veterinary                         
 pharmaceuticals from arsenic or organo-arsenic                         
 compounds..............................................       1 (0.454)
K103....................................................                
Process residues from aniline extraction from the                       
 production of aniline..................................      100 (45.4)
K104....................................................                
Combined wastewater streams generated from nitrobenzene/                
 aniline chlorobenzenes.................................       10 (4.54)
K105....................................................                
Separated aqueous stream from the reactor product                       
 washing step in the production of chlorobenzenes.......       10 (4.54)
K106....................................................                
Wastewater treatment sludge from the mercury cell                       
 process in chlorine production.........................       1 (0.454)
K107....................................................                
 Column bottoms from product seperation from the                        
 production of 1,1-dimethylhydrazine (UDMH) from                        
 carboxylic acid hydrazines.............................       10 (4.54)
K108....................................................                
 Condensed column overheads from product seperation and                 
 condensed reator vent gases from the production of 1,1-                
 dimethylhydrazine (UDMH) from carboxylic acid                          
 hydrazides.............................................       10 (4.54)
K109....................................................                
Spent filter cartidges from product purification from                   
 the production of 1,1-dimethylhydrazine (UDMH) from                    
 carboxylic acid hydazides..............................       10 (4.54)
K110....................................................                
Condensed column overheads from intermediate seperation                 
 from the production of 1,1-dimethylhydrazines (UDMH)                   
 from carboxylic acid hydrazides........................       10 (4.54)
K111....................................................                
Product washwaters from the production of dinitrotoluene                
 via nitration of toluene...............................       10 (4.54)
K112....................................................                
Reaction by-product water from the drying column in the                 
 production of toluenediamine via hydrogenation of                      
 dinitrotoluene.........................................       10 (4.54)
K113....................................................                
Condensed liquid light ends from the purification of                    
 toluenediamine in the production of toluenediamine via                 
 hydrogenation of dinitrotoluene........................       10 (4.54)
K114....................................................                
Vicinals from the purification of toluenediamine in the                 
 production of toluenediamine via hydrogenation of                      
 dinitrotoluene.........................................       10 (4.54)
K115....................................................                
Heavy ends from the purification of toluenediamine in                   
 the production of toluenediamine via hydrogenation of                  
 dinitrotoluene.........................................       10 (4.54)

[[Page 262]]

                                                                        
K116....................................................                
Organic condensate from the solvent recovery column in                  
 the production of toluene diisocyanate via phosgenation                
 of toluenediamine......................................       10 (4.54)
K117....................................................                
Wastewater from the reaction vent gas scrubber in the                   
 production of ethylene bromide via bromination of                      
 ethene.................................................       1 (0.454)
K118....................................................                
Spent absorbent solids from purification of ethylene                    
 dibromide in the production of ethylene dibromide......       1 (0.454)
K123....................................................                
Process wastewater (including supernates, filtrates, and                
 washwaters) from the production of                                     
 ethylenebisdithiocarbamic acid and its salts...........       10 (4.54)
K124....................................................                
Reactor vent scrubber water from the production of                      
 ethylenebisdithiocarbamic acid and its salts...........       10 (4.54)
K125....................................................                
Filtration, evaporation, and centrifugation solids from                 
 the production of ethylenebisdithiocarbamic acid and                   
 its salts..............................................       10 (4.54)
K126....................................................                
Baghouse dust and floor sweepings in milling and                        
 packaging operations from the production or formulation                
 of ethylenebisdithiocarbamic acid and its salts........       10 (4.54)
K131....................................................                
Waste water from the reactor and spent sulfuric acid                    
 from the acid dryer in the production of methyl bromide      100 (45.4)
K132....................................................                
Spent absorbent and wastewater solids from the                          
 production of methyl bromide...........................      1000 (454)
K136....................................................                
Still bottoms from the purification of ethylene                         
 dibromide in the production of ethylene dibromide via                  
 bromination of ethene..................................       1 (0.454)
K141....................................................       1 (0.454)
K142....................................................       1 (0.454)
K143....................................................       1 (0.454)
K144....................................................       1 (0.454)
K145....................................................       1 (0.454)
K147....................................................       1 (0.454)
K148....................................................       1 (0.454)
K149....................................................       10 (4.54)
K150....................................................       10 (4.54)
K151....................................................      10 (4.54) 
------------------------------------------------------------------------
Footnotes:                                                              
 cents The RQ for these hazardous substances is limited to those pieces 
  of the metal having a diameter smaller than 100 micrometers (0.004    
  inches)                                                               
 cents cents The RQ for asbestos is limited to friable forms only       
@ Indicates that the name was added by RSPA because (1) the name is a   
  synonym for a specific hazardous substance and (2) the name appears in
  the Hazardous Materials Table as a proper shipping name.              


[[Page 263]]

         List of Hazardous Substances and Reportable Quantities

                         Table 2.--Radionuclides                        
------------------------------------------------------------------------
                                                         (3)--Reportable
            (1)--Radionuclide              (2)--Atomic  Quantity (RQ) Ci
                                              Number          (TBq)     
------------------------------------------------------------------------
Actinium-224 ............................         89           100 (3.7)
Actinium-225 ............................         89            1 (.037)
Actinium-226 ............................         89            10 (.37)
Actinium-227 ............................         89     0.001 (.000037)
Actinium-228 ............................         89            10 (.37)
Aluminum-26 .............................         13            10 (.37)
Americium-237 ...........................         95           1000 (37)
Americium-238 ...........................         95           100 (3.7)
Americium-239 ...........................         95           100 (3.7)
Americium-240 ...........................         95            10 (.37)
Americium-241 ...........................         95       0.01 (.00037)
Americium-242 ...........................         95           100 (3.7)
Americium-242m ..........................         95       0.01 (.00037)
Americium-243 ...........................         95       0.01 (.00037)
Americium-244 ...........................         95            10 (.37)
Americium-244m ..........................         95           1000 (37)
Americium-245 ...........................         95           1000 (37)
Americium-246 ...........................         95           1000 (37)
Americium-246m ..........................         95           1000 (37)
Antimony-115 ............................         51           1000 (37)
Antimony-116 ............................         51           1000 (37)
Antimony-116m ...........................         51           100 (3.7)
Antimony-117 ............................         51           1000 (37)
Antimony-118m ...........................         51            10 (.37)
Antimony-119 ............................         51           1000 (37)
Antimony-120 (16 min) ...................         51           1000 (37)
Antimony-120 (5.76 day) .................         51            10 (.37)
Antimony-122 ............................         51            10 (.37)
Antimony-124 ............................         51            10 (.37)
Antimony-124m ...........................         51           1000 (37)
Antimony-125 ............................         51            10 (.37)
Antimony-126 ............................         51            10 (.37)
Antimony-126m ...........................         51           1000 (37)
Antimony-127 ............................         51            10 (.37)
Antimony-128 (10.4 min) .................         51           1000 (37)
Antimony-128 (9.01 hr) ..................         51            10 (.37)
Antimony-129 ............................         51           100 (3.7)
Antimony-130 ............................         51           100 (3.7)
Antimony-131 ............................         51           1000 (37)
Argon-39 ................................         18           1000 (37)
Argon-41 ................................         18            10 (.37)
Arsenic-69 ..............................         33           1000 (37)
Arsenic-70 ..............................         33           100 (3.7)
Arsenic-71 ..............................         33           100 (3.7)
Arsenic-72 ..............................         33            10 (.37)
Arsenic-73 ..............................         33           100 (3.7)
Arsenic-74 ..............................         33            10 (.37)
Arsenic-76 ..............................         33           100 (3.7)
Arsenic-77 ..............................         33           1000 (37)
Arsenic-78 ..............................         33           100 (3.7)
Astatine-207 ............................         85           100 (3.7)
Astatine-211 ............................         85           100 (3.7)
Barium-126 ..............................         56           1000 (37)
Barium-128 ..............................         56            10 (.37)
Barium-131 ..............................         56            10 (.37)
Barium-131m .............................         56           1000 (37)
Barium-133 ..............................         56            10 (.37)
Barium-133m .............................         56           100 (3.7)
Barium-135m .............................         56           1000 (37)
Barium-139 ..............................         56           1000 (37)
Barium-140 ..............................         56            10 (.37)
Barium-141 ..............................         56           1000 (37)
Barium-142 ..............................         56           1000 (37)
Berkelium-245 ...........................         97           100 (3.7)
Berkelium-246 ...........................         97            10 (.37)
Berkelium-247 ...........................         97       0.01 (.00037)
Berkelium-249 ...........................         97            1 (.037)
Berkelium-250 ...........................         97           100 (3.7)
Beryllium-10 ............................          4            1 (.037)
Beryllium-7 .............................          4           100 (3.7)
Bismuth-200 .............................         83           100 (3.7)
Bismuth-201 .............................         83           100 (3.7)
Bismuth-202 .............................         83           1000 (37)
Bismuth-203 .............................         83            10 (.37)
Bismuth-205 .............................         83            10 (.37)
Bismuth-206 .............................         83            10 (.37)
Bismuth-207 .............................         83            10 (.37)
Bismuth-210 .............................         83            10 (.37)
Bismuth-210m ............................         83         0.1 (.0037)
Bismuth-212 .............................         83           100 (3.7)
Bismuth-213 .............................         83           100 (3.7)
Bismuth-214 .............................         83           100 (3.7)
Bromine-74 ..............................         35           100 (3.7)
Bromine-74m .............................         35           100 (3.7)
Bromine-75 ..............................         35           100 (3.7)
Bromine-76 ..............................         35            10 (.37)
Bromine-77 ..............................         35           100 (3.7)
Bromine-80 ..............................         35           1000 (37)
Bromine-80m .............................         35           1000 (37)
Bromine-82 ..............................         35            10 (.37)
Bromine-83 ..............................         35           1000 (37)
Bromine-84 ..............................         35           100 (3.7)
Cadmium-104 .............................         48           1000 (37)
Cadmium-107 .............................         48           1000 (37)
Cadmium-109 .............................         48            1 (.037)
Cadmium-113 .............................         48         0.1 (.0037)
Cadmium-113m ............................         48         0.1 (.0037)
Cadmium-115 .............................         48           100 (3.7)
Cadmium-115m ............................         48            10 (.37)
Cadmium-117 .............................         48           100 (3.7)
Cadmium-117m ............................         48            10 (.37)
Calcium-41 ..............................         20            10 (.37)
Calcium-45 ..............................         20            10 (.37)
Calcium-47 ..............................         20            10 (.37)
Californium-244 .........................         98           1000 (37)
Californium-246 .........................         98            10 (.37)
Californium-248 .........................         98         0.1 (.0037)
Californium-249 .........................         98       0.01 (.00037)
Californium-250 .........................         98       0.01 (.00037)
Californium-251 .........................         98       0.01 (.00037)
Californium-252 .........................         98         0.1 (.0037)
Californium-253 .........................         98            10 (.37)
Californium-254 .........................         98         0.1 (.0037)
Carbon-11 ...............................          6           1000 (37)
Carbon-14 ...............................          6            10 (.37)
Cerium-134 ..............................         58            10 (.37)
Cerium-135 ..............................         58            10 (.37)
Cerium-137 ..............................         58           1000 (37)
Cerium-137m .............................         58           100 (3.7)
Cerium-139 ..............................         58           100 (3.7)
Cerium-141 ..............................         58            10 (.37)
Cerium-143 ..............................         58           100 (3.7)
Cerium-144 ..............................         58            1 (.037)
Cesium-125 ..............................         55           1000 (37)
Cesium-127 ..............................         55           100 (3.7)
Cesium-129 ..............................         55           100 (3.7)
Cesium-130 ..............................         55           1000 (37)
Cesium-131 ..............................         55           1000 (37)
Cesium-132 ..............................         55            10 (.37)
Cesium-134 ..............................         55            1 (.037)
Cesium-134m .............................         55           1000 (37)
Cesium-135 ..............................         55            10 (.37)
Cesium-135m .............................         55           100 (3.7)
Cesium-136 ..............................         55            10 (.37)
Cesium-137 ..............................         55            1 (.037)
Cesium-138 ..............................         55           100 (3.7)

[[Page 264]]

                                                                        
Chlorine-36 .............................         17            10 (.37)
Chlorine-38 .............................         17           100 (3.7)
Chlorine-39 .............................         17           100 (3.7)
Chromium-48 .............................         24           100 (3.7)
Chromium-49 .............................         24           1000 (37)
Chromium-51 .............................         24           1000 (37)
Cobalt-55 ...............................         27            10 (.37)
Cobalt-56 ...............................         27            10 (.37)
Cobalt-57 ...............................         27           100 (3.7)
Cobalt-58 ...............................         27            10 (.37)
Cobalt-58m ..............................         27           1000 (37)
Cobalt-60 ...............................         27            10 (.37)
Cobalt-60m ..............................         27           1000 (37)
Cobalt-61 ...............................         27           1000 (37)
Cobalt-62m ..............................         27           1000 (37)
Copper-60 ...............................         29           100 (3.7)
Copper-61 ...............................         29           100 (3.7)
Copper-64 ...............................         29           1000 (37)
Copper-67 ...............................         29           100 (3.7)
Curium-238 ..............................         96           1000 (37)
Curium-240 ..............................         96            1 (.037)
Curium-241 ..............................         96            10 (.37)
Curium-242 ..............................         96            1 (.037)
Curium-243 ..............................         96       0.01 (.00037)
Curium-244 ..............................         96       0.01 (.00037)
Curium-245 ..............................         96       0.01 (.00037)
Curium-246 ..............................         96       0.01 (.00037)
Curium-247 ..............................         96       0.01 (.00037)
Curium-248 ..............................         96     0.001 (.000037)
Curium-249 ..............................         96           1000 (37)
Dysprosium-155 ..........................         66           100 (3.7)
Dysprosium-157 ..........................         66           100 (3.7)
Dysprosium-159 ..........................         66           100 (3.7)
Dysprosium-165 ..........................         66           1000 (37)
Dysprosium-166 ..........................         66            10 (.37)
Einsteinium-250 .........................         99            10 (.37)
Einsteinium-251 .........................         99           1000 (37)
Einsteinium-253 .........................         99            10 (.37)
Einsteinium-254 .........................         99         0.1 (.0037)
Einsteinium-254m ........................         99            1 (.037)
Erbium-161 ..............................         68           100 (3.7)
Erbium-165 ..............................         68           1000 (37)
Erbium-169 ..............................         68           100 (3.7)
Erbium-171 ..............................         68           100 (3.7)
Erbium-172 ..............................         68            10 (.37)
Europium-145 ............................         63            10 (.37)
Europium-146 ............................         63            10 (.37)
Europium-147 ............................         63            10 (.37)
Europium-148 ............................         63            10 (.37)
Europium-149 ............................         63           100 (3.7)
Europium-150 (12.6 hr) ..................         63           1000 (37)
Europium-150 (34.2 yr) ..................         63            10 (.37)
Europium-152 ............................         63            10 (.37)
Europium-152m ...........................         63           100 (3.7)
Europium-154 ............................         63            10 (.37)
Europium-155 ............................         63            10 (.37)
Europium-156 ............................         63            10 (.37)
Europium-157 ............................         63            10 (.37)
Europium-158 ............................         63           1000 (37)
Fermium-252 .............................        100            10 (.37)
Fermium-253 .............................        100            10 (.37)
Fermium-254 .............................        100           100 (3.7)
Fermium-255 .............................        100           100 (3.7)
Fermium-257 .............................        100            1 (.037)
Fluorine-18 .............................          9           1000 (37)
Francium-222 ............................         87           100 (3.7)
Francium-223 ............................         87           100 (3.7)
Gadolinium-145 ..........................         64           100 (3.7)
Gadolinium-146 ..........................         64            10 (.37)
Gadolinium-147 ..........................         64            10 (.37)
Gadolinium-148 ..........................         64     0.001 (.000037)
Gadolinium-149 ..........................         64           100 (3.7)
Gadolinium-151 ..........................         64           100 (3.7)
Gadolinium-152 ..........................         64     0.001 (.000037)
Gadolinium-153 ..........................         64            10 (.37)
Gadolinium-159 ..........................         64           1000 (37)
Gallium-65 ..............................         31           1000 (37)
Gallium-66 ..............................         31            10 (.37)
Gallium-67 ..............................         31           100 (3.7)
Gallium-68 ..............................         31           1000 (37)
Gallium-70 ..............................         31           1000 (37)
Gallium-72 ..............................         31            10 (.37)
Gallium-73 ..............................         31           100 (3.7)
Germanium-66 ............................         32           100 (3.7)
Germanium-67 ............................         32           1000 (37)
Germanium-68 ............................         32            10 (.37)
Germanium-69 ............................         32            10 (.37)
Germanium-71 ............................         32           1000 (37)
Germanium-75 ............................         32           1000 (37)
Germanium-77 ............................         32            10 (.37)
Germanium-78 ............................         32           1000 (37)
Gold-193 ................................         79           100 (3.7)
Gold-194 ................................         79            10 (.37)
Gold-195 ................................         79           100 (3.7)
Gold-198 ................................         79           100 (3.7)
Gold-198m ...............................         79            10 (.37)
Gold-199 ................................         79           100 (3.7)
Gold-200 ................................         79           1000 (37)
Gold-200m ...............................         79            10 (.37)
Gold-201 ................................         79           1000 (37)
Hafnium-170 .............................         72           100 (3.7)
Hafnium-172 .............................         72            1 (.037)
Hafnium-173 .............................         72           100 (3.7)
Hafnium-175 .............................         72           100 (3.7)
Hafnium-177m ............................         72           1000 (37)
Hafnium-178m ............................         72         0.1 (.0037)
Hafnium-179m ............................         72           100 (3.7)
Hafnium-180m ............................         72           100 (3.7)
Hafnium-181 .............................         72            10 (.37)
Hafnium-182 .............................         72         0.1 (.0037)
Hafnium-182m ............................         72           100 (3.7)
Hafnium-183 .............................         72           100 (3.7)
Hafnium-184 .............................         72           100 (3.7)
Holmium-155 .............................         67           1000 (37)
Holmium-157 .............................         67           1000 (37)
Holmium-159 .............................         67           1000 (37)
Holmium-161 .............................         67           1000 (37)
Holmium-162 .............................         67           1000 (37)
Holmium-162m ............................         67           1000 (37)
Holmium-164 .............................         67           1000 (37)
Holmium-164m ............................         67           1000 (37)
Holmium-166 .............................         67           100 (3.7)
Holmium-166m ............................         67            1 (.037)
Holmium-167 .............................         67           100 (3.7)
Hydrogen-3 ..............................          1           100 (3.7)
Indium-109 ..............................         49           100 (3.7)
Indium-110 (4.9 hr) .....................         49            10 (.37)
Indium-110 (69.1 min) ...................         49           100 (3.7)
Indium-111 ..............................         49           100 (3.7)
Indium-112 ..............................         49           1000 (37)
Indium-113m .............................         49           1000 (37)
Indium-114m .............................         49            10 (.37)
Indium-115 ..............................         49         0.1 (.0037)
Indium-115m .............................         49           100 (3.7)
Indium-116m .............................         49           100 (3.7)
Indium-117 ..............................         49           1000 (37)
Indium-117m .............................         49           100 (3.7)
Indium-119m .............................         49           1000 (37)
Iodine-120 ..............................         53            10 (.37)
Iodine-120m .............................         53           100 (3.7)

[[Page 265]]

                                                                        
Iodine-121 ..............................         53           100 (3.7)
Iodine-123 ..............................         53            10 (.37)
Iodine-124 ..............................         53         0.1 (.0037)
Iodine-125 ..............................         53       0.01 (.00037)
Iodine-126 ..............................         53       0.01 (.00037)
Iodine-128 ..............................         53           1000 (37)
Iodine-129 ..............................         53     0.001 (.000037)
Iodine-130 ..............................         53            1 (.037)
Iodine-131 ..............................         53       0.01 (.00037)
Iodine-132 ..............................         53            10 (.37)
Iodine-132m .............................         53            10 (.37)
Iodine-133 ..............................         53         0.1 (.0037)
Iodine-134 ..............................         53           100 (3.7)
Iodine-135 ..............................         53            10 (.37)
Iridium-182 .............................         77           1000 (37)
Iridium-184 .............................         77           100 (3.7)
Iridium-185 .............................         77           100 (3.7)
Iridium-186 .............................         77            10 (.37)
Iridium-187 .............................         77           100 (3.7)
Iridium-188 .............................         77            10 (.37)
Iridium-189 .............................         77           100 (3.7)
Iridium-190 .............................         77            10 (.37)
Iridium-190m ............................         77           1000 (37)
Iridium-192 .............................         77            10 (.37)
Iridium-192m ............................         77           100 (3.7)
Iridium-194 .............................         77           100 (3.7)
Iridium-194m ............................         77            10 (.37)
Iridium-195 .............................         77           1000 (37)
Iridium-195m ............................         77           100 (3.7)
Iron-52 .................................         26           100 (3.7)
Iron-55 .................................         26           100 (3.7)
Iron-59 .................................         26            10 (.37)
Iron-60 .................................         26         0.1 (.0037)
Krypton-74 ..............................         36            10 (.37)
Krypton-76 ..............................         36            10 (.37)
Krypton-77 ..............................         36            10 (.37)
Krypton-79 ..............................         36           100 (3.7)
Krypton-81 ..............................         36           1000 (37)
Krypton-83m .............................         36           1000 (37)
Krypton-85 ..............................         36           1000 (37)
Krypton-85m .............................         36           100 (3.7)
Krypton-87 ..............................         36            10 (.37)
Krypton-88 ..............................         36            10 (.37)
Lanthanum-131 ...........................         57           1000 (37)
Lanthanum-132 ...........................         57           100 (3.7)
Lanthanum-135 ...........................         57           1000 (37)
Lanthanum-137 ...........................         57            10 (.37)
Lanthanum-138 ...........................         57            1 (.037)
Lanthanum-140 ...........................         57            10 (.37)
Lanthanum-141 ...........................         57           1000 (37)
Lanthanum-142 ...........................         57           100 (3.7)
Lanthanum-143 ...........................         57           1000 (37)
Lead-195m ...............................         82           1000 (37)
Lead-198 ................................         82           100 (3.7)
Lead-199 ................................         82           100 (3.7)
Lead-200 ................................         82           100 (3.7)
Lead-201 ................................         82           100 (3.7)
Lead-202 ................................         82            1 (.037)
Lead-202m ...............................         82            10 (.37)
Lead-203 ................................         82           100 (3.7)
Lead-205 ................................         82           100 (3.7)
Lead-209 ................................         82           1000 (37)
Lead-210 ................................         82       0.01 (.00037)
Lead-211 ................................         82           100 (3.7)
Lead-212 ................................         82            10 (.37)
Lead-214 ................................         82           100 (3.7)
Lutetium-169 ............................         71            10 (.37)
Lutetium-170 ............................         71            10 (.37)
Lutetium-171 ............................         71            10 (.37)
Lutetium-172 ............................         71            10 (.37)
Lutetium-173 ............................         71           100 (3.7)
Lutetium-174 ............................         71            10 (.37)
Lutetium-174m ...........................         71            10 (.37)
Lutetium-176 ............................         71            1 (.037)
Lutetium-176m ...........................         71           1000 (37)
Lutetium-177 ............................         71           100 (3.7)
Lutetium-177m ...........................         71            10 (.37)
Lutetium-178 ............................         71           1000 (37)
Lutetium-178m ...........................         71           1000 (37)
Lutetium-179 ............................         71           1000 (37)
Magnesium-28 ............................         12            10 (.37)
Manganese-51 ............................         25           1000 (37)
Manganese-52 ............................         25            10 (.37)
Manganese-52m ...........................         25           1000 (37)
Manganese-53 ............................         25           1000 (37)
Manganese-54 ............................         25            10 (.37)
Manganese-56 ............................         25           100 (3.7)
Mendelevium-257 .........................        101           100 (3.7)
Mendelevium-258 .........................        101            1 (.037)
Mercury-193 .............................         80           100 (3.7)
Mercury-193m ............................         80            10 (.37)
Mercury-194 .............................         80         0.1 (.0037)
Mercury-195 .............................         80           100 (3.7)
Mercury-195m ............................         80           100 (3.7)
Mercury-197 .............................         80           1000 (37)
Mercury-197m ............................         80           1000 (37)
Mercury-199m ............................         80           1000 (37)
Mercury-203 .............................         80            10 (.37)
Molybdenum-101 ..........................         42           1000 (37)
Molybdenum-90 ...........................         42           100 (3.7)
Molybdenum-93 ...........................         42           100 (3.7)
Molybdenum-93m ..........................         42            10 (.37)
Molybdenum-99 ...........................         42           100 (3.7)
Neodymium-136 ...........................         60           1000 (37)
Neodymium-138 ...........................         60           1000 (37)
Neodymium-139 ...........................         60           1000 (37)
Neodymium-139m ..........................         60           100 (3.7)
Neodymium-141 ...........................         60           1000 (37)
Neodymium-147 ...........................         60            10 (.37)
Neodymium-149 ...........................         60           100 (3.7)
Neodymium-151 ...........................         60           1000 (37)
Neptunium-232 ...........................         93           1000 (37)
Neptunium-233 ...........................         93           1000 (37)
Neptunium-234 ...........................         93            10 (.37)
Neptunium-235 ...........................         93           1000 (37)
Neptunium-236 (1.2 E 5 yr) ..............         93         0.1 (.0037)
Neptunium-236 (22.5 hr) .................         93           100 (3.7)
Neptunium-237 ...........................         93       0.01 (.00037)
Neptunium-238 ...........................         93            10 (.37)
Neptunium-239 ...........................         93           100 (3.7)
Neptunium-240 ...........................         93           100 (3.7)
Nickel-56 ...............................         28            10 (.37)
Nickel-57 ...............................         28            10 (.37)
Nickel-59 ...............................         28           100 (3.7)
Nickel-63 ...............................         28           100 (3.7)
Nickel-65 ...............................         28           100 (3.7)
Nickel-66 ...............................         28            10 (.37)
Niobium-88 ..............................         41           100 (3.7)
Niobium-89 (122 min) ....................         41           100 (3.7)
Niobium-89 (66 min) .....................         41           100 (3.7)
Niobium-90 ..............................         41            10 (.37)
Niobium-93m .............................         41           100 (3.7)
Niobium-94 ..............................         41            10 (.37)
Niobium-95 ..............................         41            10 (.37)
Niobium-95m .............................         41           100 (3.7)
Niobium-96 ..............................         41            10 (.37)
Niobium-97 ..............................         41           100 (3.7)
Niobium-98 ..............................         41           1000 (37)
Osmium-180 ..............................         76           1000 (37)
Osmium-181 ..............................         76           100 (3.7)

[[Page 266]]

                                                                        
Osmium-182 ..............................         76           100 (3.7)
Osmium-185 ..............................         76            10 (.37)
Osmium-189m .............................         76           1000 (37)
Osmium-191 ..............................         76           100 (3.7)
Osmium-191m .............................         76           1000 (37)
Osmium-193 ..............................         76           100 (3.7)
Osmium-194 ..............................         76            1 (.037)
Palladium-100 ...........................         46           100 (3.7)
Palladium-101 ...........................         46           100 (3.7)
Palladium-103 ...........................         46           100 (3.7)
Palladium-107 ...........................         46           100 (3.7)
Palladium-109 ...........................         46           1000 (37)
Phosphorus-32 ...........................         15         0.1 (.0037)
Phosphorus-33 ...........................         15            1 (.037)
Platinum-186 ............................         78           100 (3.7)
Platinum-188 ............................         78           100 (3.7)
Platinum-189 ............................         78           100 (3.7)
Platinum-191 ............................         78           100 (3.7)
Platinum-193 ............................         78           1000 (37)
Platinum-193m ...........................         78           100 (3.7)
Platinum-195m ...........................         78           100 (3.7)
Platinum-197 ............................         78           1000 (37)
Platinum-197m ...........................         78           1000 (37)
Platinum-199 ............................         78           1000 (37)
Platinum-200 ............................         78           100 (3.7)
Plutonium-234 ...........................         94           1000 (37)
Plutonium-235 ...........................         94           1000 (37)
Plutonium-236 ...........................         94         0.1 (.0037)
Plutonium-237 ...........................         94           1000 (37)
Plutonium-238 ...........................         94       0.01 (.00037)
Plutonium-239 ...........................         94       0.01 (.00037)
Plutonium-240 ...........................         94       0.01 (.00037)
Plutonium-241 ...........................         94            1 (.037)
Plutonium-242 ...........................         94       0.01 (.00037)
Plutonium-243 ...........................         94           1000 (37)
Plutonium-244 ...........................         94       0.01 (.00037)
Plutonium-245 ...........................         94           100 (3.7)
Polonium-203 ............................         84           100 (3.7)
Polonium-205 ............................         84           100 (3.7)
Polonium-207 ............................         84            10 (.37)
Polonium-210 ............................         84       0.01 (.00037)
Potassium-40 ............................         19            1 (.037)
Potassium-42 ............................         19           100 (3.7)
Potassium-43 ............................         19            10 (.37)
Potassium-44 ............................         19           100 (3.7)
Potassium-45 ............................         19           1000 (37)
Praseodymium-136 ........................         59           1000 (37)
Praseodymium-137 ........................         59           1000 (37)
Praseodymium-138m .......................         59           100 (3.7)
Praseodymium-139 ........................         59           1000 (37)
Praseodymium-142 ........................         59           100 (3.7)
Praseodymium-142m .......................         59           1000 (37)
Praseodymium-143 ........................         59            10 (.37)
Praseodymium-144 ........................         59           1000 (37)
Praseodymium-145 ........................         59           1000 (37)
Praseodymium-147 ........................         59           1000 (37)
Promethium-141 ..........................         61           1000 (37)
Promethium-143 ..........................         61           100 (3.7)
Promethium-144 ..........................         61            10 (.37)
Promethium-145 ..........................         61           100 (3.7)
Promethium-146 ..........................         61            10 (.37)
Promethium-147 ..........................         61            10 (.37)
Promethium-148 ..........................         61            10 (.37)
Promethium-148m .........................         61            10 (.37)
Promethium-149 ..........................         61           100 (3.7)
Promethium-150 ..........................         61           100 (3.7)
Promethium-151 ..........................         61           100 (3.7)
Protactinium-227 ........................         91           100 (3.7)
Protactinium-228 ........................         91            10 (.37)
Protactinium-230 ........................         91            10 (.37)
Protactinium-231 ........................         91       0.01 (.00037)
Protactinium-232 ........................         91            10 (.37)
Protactinium-233 ........................         91           100 (3.7)
Protactinium-234 ........................         91            10 (.37)
RADIONUCLIDES $                                                         
 aa The RQ of one curie
  applies to all radionuclides not otherwise listed. Whenever the RQs in
  TABLE 1--HAZARDOUS SUBSTANCES OTHER THAN RADIONUCLIDES and this table 
  conflict, the lowest RQ shall apply. For example, uranyl acetate and  
  uranyl nitrate have RQs shown in TABLE 1 of 100 pounds, equivalent to 
  about one-tenth the RQ level for uranium-238 in this table.           
** The method to determine the RQs for mixtures or solutions of         
  radionuclides can be found in paragraph 6 of the note preceding TABLE 
  1 of this appendix. RQs for the following four common radionuclide    
  mixtures are provided: radium-226 in secular equilibrium with its     
  daughters (0.053 curie); natural uranium (0.1 curie); natural uranium 
  in secular equilibrium with its daughters (0.052 curie); and natural  
  thorium in secular equilibrium with its daughters (0.011 curie).      
*** Indicates that the name was added by RSPA because it appears in the 
  list of radionuclides in 49 CFR 173.435. The reportable quantity (RQ),
  if not specifically listed elsewhere in this appendix, shall be       
  determined in accordance with the procedures in paragraph 6 of this   
  appendix.                                                             
                                                                        

[Amdt. 172-122, 55 FR 46798, Nov. 7, 1990]

    Editorial Note: For Federal Register citations affecting Appendix A 
to Sec. 172.102, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.

          Appendix B to Sec. 172.101--List of Marine Pollutants

    1. This appendix lists potential marine pollutants as defined in 
Sec. 171.8 of this subchapter.
    2. If a marine pollutant meets the definition of any hazard class or 
division as defined in this subchapter, other than Class 9, the class of 
the material must be determined in accordance with Sec. 173.2a of this 
subchapter.
    3. This appendix contains two columns. The first column, entitled 
``S.M.P.'' (for severe marine pollutants), identifies whether a material 
is a severe marine pollutant. If the letters ``PP'' appear in this 
column for a material, the material is a severe marine pollutant, 
otherwise it is not. The second column, entitled ``Marine Pollutant'' , 
lists the marine pollutants.
    4. If a material not listed in this appendix meets the criteria for 
a marine pollutant, as provided in the General Introduction of the IMDG 
Code, Guidelines for the Identification of Harmful Substances in 
Packaged Form, the material may be transported as a marine pollutant in 
accordance with the applicable requirements of this subchapter.
    5. If approved by the Associate Administrator for Hazardous 
Materials Safety, a material listed in this appendix which does not meet 
the criteria for a marine pollutant, as provided in the General 
Introduction of the

[[Page 269]]

IMDG Code, Guidelines for the Identification of Harmful Substances in 
Packaged Form, is excepted from the requirements of this subchapter as a 
marine pollutant.

          Appendix B to Sec.  172.101 List of Marine Pollutants         
------------------------------------------------------------------------
                  S.M.P.                           Marine Pollutant     
------------------------------------------------------------------------
(1)                                         (2)                         
                                            Acetal                      
                                            Acetaldehyde.               
                                            Acetone cyanohydrin,        
                                             stabilized                 
                                            Acetylene tetrabromide      
                                            Acetylene tetrachloride     
                                            Acraldehyde, inhibited      
                                            Acrolein, inhibited         
                                            Acrylic aldehyde, inhibited 
                                            Alcohol C-12 - C-15 poly(1- 
                                             3) ethoxylate              
                                            Alcohol C-13 - C-15 poly(1- 
                                             6) ethoxylate              
                                            Alcohol C-6 - C-17          
                                             (secondary)poly(3-6)       
                                             ethoxylate                 
                                            Aldicarb                    
PP........................................  Aldrin                      
                                            Alkyl (c12-c14)             
                                             dimethylamine              
                                            Alkyl (c7-c9) nitrates      
                                            Alkyl (C10-C21) sulphonic   
                                             acid ester of phenol.      
                                            Alkylphenols, liquid, n.o.s.
                                             (including C2-C8           
                                             homologues)                
                                            Alkylphenols, solid, n.o.s. 
                                             (including C2-C8           
                                             homologues)                
                                            Allyl bromide               
                                            ortho-Aminoanisole          
                                            Aminocarb                   
                                            Ammonium dinitro-o-cresolate
                                            n-Amylbenzene               
                                            Amyl mercaptans             
                                            ortho-Anisidines            
                                            Anisole.                    
PP........................................  Azinphos-ethyl              
                                            Azinphos-methyl.            
                                            Barium compounds, soluble,  
                                             n.o.s.                     
                                            Barium cyanide              
                                            Bendiocarb                  
                                            Benomyl                     
                                            Benquinox                   
                                            Benzaldehyde.               
                                            Benzyl chlorocarbonate      
                                            Benzyl chloroformate        
PP........................................  Binapacryl                  
                                            N,N-Bis (2-hydroxyethyl)    
                                             oleamide (LOA).            
PP........................................  Brodifacoum                 
                                            Bromine cyanide             
                                            Bromoacetone                
                                            Bromoallylene               
                                            Bromobenzene.               
                                            ortho-Bromobenzyl cyanide   
                                            Bromocyane                  
                                            Bromoform                   
PP........................................  Bromophos-ethyl             
                                            3-Bromopropene              
                                            Bromoxynil                  
                                            Butanedione.                
                                            2-Butenal, inhibited        
                                            Butyl benzenes              
                                            Butyl benzyl phthalate      
                                            n-Butyl butyrate            
                                            N-tert-butyl-N-cyclopropyl-6-
                                             methylthio-1,3,5-triazine- 
                                             2,4-diamine.               
                                            Butyl mercaptans.           
                                            Butylphenols, liquid        
                                            Butylphenols, solid         
                                            2,4-Di-tert-butylphenol.    
                                            2,6-Di-tert-butylphenol.    
                                            para-tertiary-butyltoluene  
                                            Butyraldehyde.              
PP........................................  Cadmium compounds           
                                            Cadmium sulphide            
                                            Calcium arsenate            
                                            Calcium arsenate and calcium
                                             arsenite, mixtures, solid  
                                            Calcium cyanide             
                                            Calcium naphthenate         
PP........................................  Camphechlor                 
                                            Camphor oil.                
                                            Carbaryl                    
                                            Carbendazim                 
                                            Carbofuran                  
                                            Carbon tetrabromide         
                                            Carbon tetrachloride        
PP........................................  Carbophenothion             
                                            Cartap hydrochloride        
PP........................................  Chlordane                   
                                            Chlorfenvinphos             
PP........................................  Chlorinated paraffins (C-10 -
                                              C-13)                     
                                            Chlorine                    
                                            Chlorine cyanide, inhibited 
                                            Chlormephos                 
                                            Chloroacetone, stabilized   
                                            2-Chloro-6-nitrotoluene     
                                            4-Chloro-2-nitrotoluene     
                                            Chloro-ortho-nitrotoluene   
                                            2-Chloro-5-                 
                                             trifluoromethylnitrobenzene
                                            para-Chlorobenzyl chloride, 
                                             liquid or solid            
                                            Chlorodinitrobenzenes       
                                            1-Chloroheptane             
                                            1-Chlorohexane              
                                            Chloronitroanilines         
                                            Chloronitrotoluenes liquid  
                                            Chloronitrotoluenes, solid  
                                            1-Chlorooctane              
PP........................................  Chlorophenates, liquid      
PP........................................  Chlorophenates, solid       
                                            Chlorophenols, liquid       
                                            Chlorophenols, solid        
                                            Chlorophenyltrichlorosilane 
                                            alpha-Chloropropylene       
                                            Chlorotoluenes              
PP........................................  Chlorpyriphos               
PP........................................  Chlorthiophos               
                                            Coal tar                    
                                            Coal tar naphtha            
                                            Cocculus                    
                                            Coconitrile.                
                                            Copper acetoarsenite        
                                            Copper arsenite             
                                            Copper chloride             
PP........................................  Copper chloride solution    
PP........................................  Copper cyanide              
PP........................................  Copper metal powder         
                                            Coumachlor                  
PP........................................  Coumaphos                   
                                            Creosote (coal tar)         
                                            Creosote (wood tar)         
                                            Cresols (o-; m-; p-)        
PP........................................  Cresyl diphenyl phosphate   
                                            Cresylic acid               
                                            Cresylic acid sodium salt   
                                            Crotonaldehyde, inhibited   
                                            Crotonic aldehyde           
                                            Crotoxyphos                 
                                            Cumene                      
                                            Cupric arsenite             

[[Page 270]]

                                                                        
                                            Cupric chloride             
PP........................................  Cupric cyanide              
PP........................................  Cupric sulfate              
                                            Cupriethylenediamine        
                                             solution                   
                                            Cuprous chloride            
                                            Cyanide mixtures            
                                            Cyanide solutions           
                                            Cyanides, inorganic, n.o.s. 
                                            Cyanogen bromide            
                                            Cyanogen chloride, inhibited
                                            Cyanophos                   
PP........................................  1,5,9-Cyclododecatriene     
PP........................................  Cyhexatin                   
PP........................................  Cymenes (o-;m-;p-).         
PP........................................  Cypermethrin                
                                            2,4-D                       
PP........................................  DDT                         
                                            normal-Decaldehyde.         
                                            normal-Decanol.             
                                            Decyl acrylate              
                                            Decyloxytetrahydrothiophene 
                                             dioxide                    
                                            DEF                         
                                            Di-allate                   
                                            Di-n-Butyl phthalate        
PP........................................  Dialifos                    
                                            4,4'-Diaminodiphenylmethane 
PP........................................  Diazinon                    
                                            1,3-Dibromobenzene.         
                                            Di-normal-butyl ketone.     
PP........................................  Dichlofenthion              
                                            Dichloroanilines            
                                            1,3-Dichlorobenzene         
                                            1,2-Dichlorobenzene         
                                            1,4-Dichlorobenzene         
                                            Dichlorobenzene (meta;      
                                             ortho; para)               
                                            2,2-Dichlorodiethyl ether   
                                            Dichloroethyl ether         
                                            1,1-Dichloroethylene,       
                                             inhibited                  
                                            1,6-Dichlorohexane          
                                            Dichlorophenols, liquid     
                                            Dichlorophenols, solid      
                                            2,4-Dichlorophenoxyacetic   
                                             acid (see also 2,4D)       
                                            2,4-Dichlorophenoxyacetic   
                                             acid diethanolamine salt   
                                            2,4-Dichlorophenoxyacetic   
                                             acid dimethylamine salt    
                                            2,4-Dichlorophenoxyacetic   
                                             acid triisopropylamine salt
                                            Dichlorophenyltrichlorosilan
                                             e                          
PP........................................  Dichlorvos                  
                                            Dicrotophos                 
PP........................................  Dieldrin                    
                                            Diethybenzenes (mixed       
                                             isomers)                   
                                            Diisopropylbenzenes         
                                            Diisopropylnaphthalene      
PP........................................  Dimethoate                  
                                            Dimethyl disulphide.        
                                            Dimethyl glyoxal            
                                             (butanedione)              
                                            Dimethyl sulphide           
                                            Dimethylhydrazine,          
                                             symmetrical.               
                                            Dimethylhydrazine,          
                                             unsymmetrical.             
                                            Dimethylphenols, liquid or  
                                             solid                      
                                            Dinitro-o-cresol, solid     
                                            Dinitro-o-cresol, solution  
                                            Dinitrochlorobenzenes,      
                                             liquid or solid            
                                            Dinitrophenol, dry or wetted
                                             with less than 15 per cent 
                                             water, by mass             
                                            Dinitrophenol solutions     
                                            Dinitrophenol, wetted with  
                                             not less than 15 per cent  
                                             water, by mass             
                                            Dinitrophenolates alkali    
                                             metals, dry or wetted with 
                                             less than 15 per cent      
                                             water, by mass             
                                            Dinitrophenolates, wetted   
                                             with not less than 15 per  
                                             cent water, by mass        
                                            Dinobuton                   
                                            Dinoseb                     
                                            Dinoseb acetate             
                                            Dioxacarb                   
                                            Dioxathion                  
                                            Dipentene.                  
                                            Diphacinone                 
                                            Diphenyl                    
                                            Diphenyl ether              
                                            Diphenyl ether/biphenyl     
                                             phenyl ether mixtures.     
                                            Diphenyl/diphenyl ether     
                                             (mixtures).                
                                            Diphenyl oxide              
                                            Diphenyl oxide and biphenyl 
                                             phenyl ether mixtures      
PP........................................  Diphenylamine chloroarsine  
PP........................................  Diphenylchloroarsine, solid 
                                             or liquid                  
                                            Disulfoton                  
                                            1,4-Di-tert-butylbenzene    
                                            DNOC                        
                                            DNOC (pesticide)            
                                            Dodecyl diphenyl oxide      
                                             disulphonate               
                                            Dodecyl hydroxypropyl       
                                             sulfide                    
                                            Dodecylamine                
PP........................................  Dodecylphenol               
                                            Drazoxolon                  
                                            Edifenphos                  
PP........................................  Endosulfan                  
PP........................................  Endrin                      
                                            Epibromohydrin              
                                            Epichlorohydrin             
PP........................................  EPN                         
                                            EPTC (ISO).                 
PP........................................  Esfenvalerate               
PP........................................  Ethion                      
                                            Ethoprophos                 
                                            Ethyl acrylate, inhibited   
                                            Ethyl chlorothioformate     
                                            Ethyl fluid                 
                                            Ethyl mercaptan             
                                            1-Ethyl-2-methylbenzene     
                                            2-Ethylhexyl nitrate        
                                            5-Ethyl-2-picoline          
                                            Ethyl propenoate, inhibited 
                                            2-Ethyl-3-propylacrolein    
                                            Ethyl tetraphosphate        
                                            2-Ethylbutyraldehyde        
                                            Ethyldichloroarsine         
                                            Ethylene dibromide and      
                                             methyl bromide mixtures,   
                                             liquid                     
                                            2-Ethylhexaldehyde          
                                            2-Ethylhexenal              
                                            Fenaminphos                 
PP........................................  Fenbutatin oxide            
PP........................................  Fenitrothion                
PP........................................  Fenpropathrin               
                                            Fensulfothion               
PP........................................  Fenthion                    
PP........................................  Fentin acetate              
PP........................................  Fentin hydroxide            
                                            Ferric arsenate             
                                            Ferric arsenite             
                                            Ferrous arsenate            
PP........................................  Fonofos                     

[[Page 271]]

                                                                        
                                            Formetanate                 
                                            Furathiocarb (ISO).         
PP........................................  gamma-BHC                   
                                            Gasoline, leaded            
PP........................................  Heptachlor                  
                                            Heptenophos                 
PP........................................  normal-Heptyl aldehyde.     
                                            normal-Heptyl chloride      
                                            n-Heptylbenzene             
PP........................................  Hexachlorobutadiene         
PP........................................  1,3-Hexachlorobutadiene     
                                            2,4-Hexadiene aldehyde.     
                                            Hexaethyl tetraphosphate    
                                             liquid                     
                                            Hexaethyl tetraphosphate,   
                                             solid                      
                                            normal-Hexyl chloride       
                                            normal-Hexaldehyde.         
                                            n-Hexylbenzene              
                                            Hydrocyanic acid, anhydrous,
                                             stabilized                 
                                            Hydrocyanic acid, anhydrous,
                                             stabilized, absorbed in a  
                                             porous inert material      
                                            Hydrocyanic acid, aqueous   
                                             solutions not more than 20%
                                             hydrocyanic acid           
                                            Hydrogen cyanide solution in
                                             alcohol, with not more than
                                             45% hydrogen cyanide.      
                                            Hydrogen cyanide, stabilized
                                             with less than 3% water.   
                                            Hydrogen cyanide, stabilized
                                             with less than 3% water and
                                             absorbed in a porous inert 
                                             material.                  
                                            Hydroxydimethylbenzenes,    
                                             liquid or solid            
                                            Ioxynil                     
                                            Iron oxide, spent           
                                            Iron sponge, spent.         
                                            Isoamyl mercaptan           
                                            Isobenzan                   
                                            Isobutyl butyrate           
                                            Isobutyl isobutyrate        
                                            Isobutyl propionate         
                                            Isobutybenzene              
                                            Isodecaldehyde.             
                                            Isodecanol.                 
                                            Isodecyl acrylate           
                                            Isodecyl diphenyl phosphate 
                                            Isofenphos                  
                                            Isononanol.                 
                                            Isooctanol.                 
                                            Isooctyl nitrate            
                                            Isoprocarb                  
                                            Isopropenyl chloride        
                                            Isopropenylbenzene          
                                            Isopropyl chloride          
                                            Isopropylbenzene            
                                            Isotetramethylbenzene.      
                                            Isovaleraldehyde.           
PP........................................  Isoxathion                  
                                            Lead acetate                
                                            Lead arsenates              
                                            Lead arsenites              
                                            Lead compounds, soluble,    
                                             n.o.s.                     
                                            Lead cyanide                
                                            Lead nitrate                
                                            Lead perchlorate, solid or  
                                             solution                   
                                            Lead tetraethyl             
                                            Lead tetramethyl            
PP........................................  Lindane                     
                                            London Purple               
                                            Magnesium arsenate          
                                            Malathion                   
                                            Mancozeb (ISO).             
                                            Maneb or Maneb preparations 
                                             with not less than 60 per  
                                             cent maneb                 
                                            Maneb stabilized or Maneb   
                                             preparations, stabilized   
                                             against self-heating       
                                            Manganese ethylene-1,2-bis  
                                             dithiocarbamate            
                                            Manganese ethylene-1,2-bis- 
                                             dithiocarbamate, stabilized
                                             against self-heating       
                                            Mephosfolan                 
                                            Mercaptodimethur            
                                            Mercarbam                   
PP........................................  Mercuric acetate            
PP........................................  Mercuric ammonium chloride  
PP........................................  Mercuric arsenate           
PP........................................  Mercuric benzoate           
PP........................................  Mercuric bisulphate         
PP........................................  Mercuric bromide            
PP........................................  Mercuric chloride           
PP........................................  Mercuric cyanide            
PP........................................  Mercuric gluconate          
                                            Mercuric iodide             
PP........................................  Mercuric nitrate            
PP........................................  Mercuric oleate             
PP........................................  Mercuric oxide              
PP........................................  Mercuric oxycyanide,        
                                             desensitized               
PP........................................  Mercuric potassium cyanide  
PP........................................  Mercuric Sulphate           
PP........................................  Mercuric thiocyanate        
PP........................................  Mercurol                    
PP........................................  Mercurous acetate           
PP........................................  Mercurous bisuphate         
PP........................................  Mercurous bromide           
PP........................................  Mercurous chloride          
PP........................................  Mercurous nitrate           
PP........................................  Mercurous salicylate        
PP........................................  Mercurous sulphate          
PP........................................  Mercury acetates            
PP........................................  Mercury ammonium chloride   
PP........................................  Mercury based pesticides,   
                                             liquid, flammable, toxic,  
                                             n.o.s.                     
PP........................................  Mercury based pesticides,   
                                             liquid, toxic, flammable,  
                                             n.o.s.                     
PP........................................  Mercury based pesticides,   
                                             liquid, toxic, n.o.s.      
PP........................................  Mercury based pesticides,   
                                             solid, toxic, n.o.s.       
PP........................................  Mercury benzoate            
PP........................................  Mercury bichloride          
PP........................................  Mercury bisulphates         
PP........................................  Mercury bromides            
PP........................................  Mercury compounds, liquid,  
                                             n.o.s.                     
PP........................................  Mercury compounds, solid,   
                                             n.o.s.                     
PP........................................  Mercury cyanide             
PP........................................  Mercury gluconate           
PP........................................  Mercury (I) (mercurous)     
                                             compounds (pesticides)     
PP........................................  Mercury (II) (mercuric)     
                                             compounds (pesticides)     
                                            Mercury iodide              
PP........................................  Mercury nucleate            
PP........................................  Mercury oleate              
PP........................................  Mercury oxide               
PP........................................  Mercury oxycyanide,         
                                             desensitized               
PP........................................  Mercury potassium cyanide   
PP........................................  Mercury potassium iodide    
PP........................................  Mercury salicylate          
PP........................................  Mercury sulfates            
PP........................................  Mercury thiocyanate         
                                            Metam-sodium                
                                            Methamidophos               
                                            Methanethiol                
                                            Methidathion                
                                            Methomyl                    

[[Page 272]]

                                                                        
                                            ortho-Methoxyaniline        
                                            Methyl bromide and ethylene 
                                             dibromide mixtures, liquid 
                                            1-Methyl-2-ethylbenzene     
                                            1-Methyl-4-ethylbenzene     
                                            2-Methyl-5-ethylpyridine    
                                            Methyl mercaptan            
                                            2-Methyl-2-phenylpropane    
                                            Methyl salicylate           
                                            3-Methylacroleine, inhibited
                                            2-Methylbutyraldehyde.      
                                            Methylchlorobenzenes        
                                            Methylnaphthalenes, liquid  
                                            Methylnaphthalenes, solid   
                                            Methylnitrophenols          
                                            3-Methylpyradine            
                                            alpha-Methylstyrene         
                                            Methylstyrenes, inhibited   
                                            Methyltrithion              
                                            Methylvinylbenzenes,        
                                             inhibited                  
PP........................................  Mevinphos                   
                                            Mexacarbate                 
                                            Mirex                       
                                            Monocrotophos               
                                            Motor fuel anti-knock       
                                             mixtures                   
                                            Motor fuel anti-knock       
                                             mixtures or compounds      
                                            Nabam                       
                                            Naled                       
                                            Naphthalene, crude or       
                                             refined                    
                                            Naphthalene, molten         
                                            Naphthenic acids, liquid    
                                            Naphthenic acids, solid     
PP........................................  Nickel carbonyl             
PP........................................  Nickel cyanide              
PP........................................  Nickel tetracarbonyl        
                                            3-Nitro-4-                  
                                             chlorobenzotrifluoride     
                                            Nitrobenzene.               
                                            Nitrobenzotrifluorides      
                                            Nitrocresols                
                                            Nitrotolueunes (o-: m:- p-) 
                                            Nitroxyluenes, (o-; m-; p-) 
                                            1-Nonanal.                  
                                            1-Nonanol.                  
                                            Nonylphenol                 
                                            normal-Octaldehyde.         
                                            1-Octanol.                  
                                            Oleylamine                  
PP........................................  Organotin compounds, liquid,
                                             n.o.s.                     
PP........................................  Organotin compounds         
                                             (pesticides)               
PP........................................  Organotin compounds, solid, 
                                             n.o.s.                     
PP........................................  Organotin pesticides,       
                                             liquid, flammable, toxic,  
                                             n.o.s., flash point less   
                                             than 23deg C               
PP........................................  Organotin pesticides,       
                                             liquid, toxic, flammable,  
                                             n.o.s.                     
PP........................................  Organotin pesticides,       
                                             liquid, toxic, n.o.s.      
PP........................................  Organotin pesticides, solid,
                                             toxic, n.o.s.              
                                            Orthoarsenic acid           
                                            Osmium tetroxide            
                                            Oxamyl                      
                                            Oxydisulfoton               
                                            Paraoxon                    
PP........................................  Parathion                   
PP........................................  Parathion-methyl            
PP........................................  PCBs***                     
                                            Pentachloroethane           
PP........................................  Pentachlorophenol           
                                            Pentalin                    
                                            Pentanethiols               
                                            n-Pentylbenzene             
                                            Perchloroethylene           
                                            Perchloromethylmercaptan    
                                            Petrol, leaded              
PP........................................  Phenarsazine chloride       
                                            d-Phenothrin                
PP........................................  Phenthoate                  
                                            1-Phenylbutane              
                                            2-Phenylbutane              
                                            Phenylcyclohexane.          
                                            Phenylethylene, inhibited   
PP........................................  Phenylmercuric acetate      
PP........................................  Phenylmercuric compounds,   
                                             n.o.s.                     
PP........................................  Phenylmercuric hydroxide    
PP........................................  Phenylmercuric nitrate      
                                            2-Phenylpropene             
PP........................................  Phorate                     
PP........................................  Phosalone                   
                                            Phosmet                     
PP........................................  Phosphamidon                
PP........................................  Phosphorus, white or yellow 
                                             dry or under water or in   
                                             solution                   
PP........................................  Phosphorus white, or yellow,
                                             molten                     
                                            Pindone (and salts of)      
                                            alpha-Pinene                
                                            Pirimicarb                  
PP........................................  Pirimiphos-ethyl            
PP........................................  Polychlorinated biphenyls   
PP........................................  Polyhalogenated biphenyls,  
                                             liquid or Terphenyls liquid
PP........................................  Polyhalogenated biphenyls,  
                                             solid or Terphenyls, solid 
PP........................................  Potassium cuprocyanide      
                                            Potassium cyanide           
PP........................................  Potassium cyanocuprate I    
PP........................................  Potassium cyanomercurate    
PP........................................  Potassium mercuric iodide   
                                            Promecarb                   
                                            Propachlor                  
                                            Propanethiols               
                                            Propaphos                   
                                            Propenal, inhibited         
                                            Propionaldehyde.            
                                            Propoxur                    
                                            n-Propylbenzene             
                                            Prothoate                   
                                            Prussic acid, anhydrous,    
                                             stabilized                 
                                            Prussic acid, anhydrous,    
                                             stabilized, absorbed in a  
                                             porous inert material      
PP........................................  Pyrazophos                  
                                            Quinalphos                  
PP........................................  Quizalofop                  
PP........................................  Quizalofop-p-ethyl          
                                            Rotenone                    
                                            Salithion                   
                                            Silver arsenite             
                                            Silver cyanide              
PP........................................  Silver orthoarsenite        
PP........................................  Sodium copper cyanide, solid
PP........................................  Sodium copper cyanide       
                                             solution                   
PP........................................  Sodium cuprocyanide, solid  
PP........................................  Sodium cuprocyanide,        
                                             solution                   
                                            Sodium cyanide              
                                            Sodium dinitro-o-cresolate, 
                                             dry or wetted with less    
                                             than 15 per cent water, by 
                                             mass                       
                                            Sodium dinitro-ortho-       
                                             cresolate, wetted with not 
                                             less than 15 per cent      
                                             water, by mass             
PP........................................  Sodium pentachlorophenate   
                                            Strychnine or Strychnine    
                                             salts                      
                                            Styrene monomer, inhibited  
                                            Sulfotep                    
PP........................................  Sulprophos                  

[[Page 273]]

                                                                        
                                            Sym-Dichloroethyl ether     
                                            Tallow nitrile.             
                                            Temephos                    
                                            TEPP                        
PP........................................  Terbufos                    
                                            Tetrabromoethane.           
                                            Tetrabromomethane           
                                            Tetrachloroethane           
                                            Tetrachloroethylene.        
                                            Tetrachloromethane          
                                            Tetrachlorophenol           
PP........................................  Tetrachlorvinphos           
                                            Tetraethyl                  
                                             dithiopyrophosphate        
PP........................................  Tetraethyl lead, liquid     
                                            Tetramethrin                
                                            Tetramethylbenzenes         
                                            Tetramethyllead             
                                            Thallium chlorate           
                                            Thallium compounds, n.o.s.  
                                            Thallium compounds          
                                             (pesticides)               
                                            Thallium nitrate            
                                            Thallium sulfate            
                                            Thallous chlorate           
                                            4-Thiapentanal.             
                                            Thiocarbonyl tetrachloride  
                                            Triaryl phosphates,         
                                             isopropylated              
PP........................................  Triaryl phosphates, n.o.s.  
                                            Triazophos                  
                                            Tribromomethane             
PP........................................  Tributyltin compounds       
                                            Trichlorfon                 
                                            Trichlorobenzenes, liquid   
                                            Trichlorobutene             
                                            Trichlorobutylene           
                                            Trichloromethane sulphuryl  
                                             chloride                   
                                            Trichloromethyl             
                                             sulphochloride             
                                            Trichloronat                
                                            Tricresyl phosphate (less   
                                             than 1% ortho-isomer)      
PP........................................  Tricresyl phosphate (not    
                                             less than 1% ortho-isomer) 
PP........................................  Tricresyl phosphate with    
                                             more than 3 per cent ortho 
                                             isomer                     
                                            Triethylbenzene             
                                            Triisopropylated phenyl     
                                             phosphates                 
                                            1,2,3-Trimethylbenzene      
                                            1,2,4-Trimethylbenzene      
                                            1,3,5-Trimethylbenzene      
                                            Trimethylene dichloride     
                                            Triphenylphosphate.         
PP........................................  Triphenyltin compounds      
                                            Tritolyl phosphate (less    
                                             than 1% ortho-isomer)      
PP........................................  Tritolyl phosphate (not less
                                             than 1% ortho-isomer)      
                                            Trixylenyl phosphate        
                                            Turpentine                  
                                            1-Undecanol.                
                                            normal-Valeraldehyde.       
                                            Vinylbenzene, inhibited     
                                            Vinylidene chloride,        
                                             inhibited                  
                                            Vinyltoluenes, inhibited    
                                             mixed isomers              
                                            Warfarin (and salts of )    
PP........................................  White phosphorus, dry       
PP........................................  White phosphorus, molten    
PP........................................  White phosphorus, wet       
                                            White spirit, low (15-20%)  
                                             aromatic                   
                                            Xylenols                    
PP........................................  Yellow phosphorus, dry      
PP........................................  Yellow phosphorus, molten   
PP........................................  Yellow phosphorus, wet      
                                            Zinc bromide                
                                            Zinc cyanide                
                                                                        
------------------------------------------------------------------------

[Amdt. 172-127, 57 FR 52935, Nov. 5, 1992]

    Editorial Note: For Federal Register citations affecting Appendix B 
to Sec. 172.102, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 172.102  Special provisions.

    (a) General. When Column 7 of the Sec. 172.101 Table refers to a 
special provision for a hazardous material, the meaning and requirements 
of that provision are as set forth in this section. When a special 
provision specifies packaging or packaging requirements--
    (1) The special provision is in addition to the standard 
requirements for all packagings prescribed in Sec. 173.24 of this 
subchapter and any other applicable packaging requirements in subparts A 
and B of part 173 of this subchapter; and
    (2) To the extent a special provision imposes limitations or 
additional requirements on the packaging provisions set forth in Column 
8 of the Sec. 172.101 Table, packagings must conform to the requirements 
of the special provision.
    (b) Description of codes for special provisions. Special provisions 
contain packaging provisions, prohibitions, exceptions from requirements 
for particular quantities or forms of materials and requirements or 
prohibitions applicable to specific modes of transportation, as follows:
    (1) A code consisting only of numbers (for example, ``11'') is 
multi-modal in application and may apply to bulk and non-bulk 
packagings.
    (2) A code containing the letter ``A'' refers to a special provision 
which applies only to transportation by aircraft.
    (3) A code containing the letter ``B'' refers to a special provision 
which applies only to bulk packaging requirements. Unless otherwise 
provided in

[[Page 274]]

this subchapter, these special provisions do not apply to IM portable 
tanks.
    (4) A code containing the letter ``H'' refers to a special provision 
which applies only to transportation by highway.
    (5) A code containing the letter ``N'' refers to a special provision 
which applies only to non-bulk packaging requirements.
    (6) A code containing the letter ``R'' refers to a special provision 
which applies only to transportation by rail.
    (7) A code containing the letter ``T'' refers to a special provision 
which applies only to transportation in IM portable tanks.
    (8) A code containing the letter ``W'' refers to a special provision 
which applies only to transportation by water.
    (c) Tables of special provisions. The following tables list, and set 
forth the requirements of, the special provisions referred to in Column 
7 of the Sec. 172.101 Table.
    (1) Numeric provisions. These provisions are multi-modal and apply 
to bulk and non-bulk packagings:

                         Code/Special Provisions

1  This material is poisonous by inhalation (see Sec. 171.8 of this 
subchapter) in Hazard Zone A (see Sec. 173.116(a) or Sec. 173.133(a) of 
this subchapter), and must be described as an inhalation hazard under 
the provisions of this subchapter.
2  This material is poisonous by inhalation (see Sec. 171.8 of this 
subchapter) in Hazard Zone B (see Sec. 173.116(a) or Sec. 173.133(a) of 
this subchapter), and must be described as an inhalation hazard under 
the provisions of this subchapter.
3  This material is poisonous by inhalation (see Sec. 171.8 of this 
subchapter) in Hazard Zone C (see Sec. 173.116(a) of this subchapter), 
and must be described as an inhalation hazard under the provisions of 
this subchapter.
4  This material is poisonous by inhalation (see Sec. 171.8 of this 
subchapter) in Hazard Zone D (see Sec. 173.116(a) of this subchapter), 
and must be described as an inhalation hazard under the provisions of 
this subchapter.
5  If this material meets the definition for a material poisonous by 
inhalation (see Sec. 171.8 of this subchapter), a shipping name must be 
selected which identifies the inhalation hazard, in Division 2.3 or 
Division 6.1, as appropriate.
6  This material is poisonous-by-inhalation and must be described as an 
inhalation hazard under the provisions of this subchapter.
7  An ammonium nitrate fertilizer is a fertilizer formulation, 
containing 90% or more ammonium nitrate and no more than 0.2% organic 
combustible material (calculated as carbon), which does not meet the 
definition and criteria of a Class 1 (explosive) material (See 
Sec. 173.50 of this subchapter).
8  A hazardous substance that is not a hazardous waste may be shipped 
under the shipping description ``Other regulated substances, liquid or 
solid, n.o.s.'', as appropriate. In addition, for solid materials, 
special provision B54 applies.
9  Packaging for certain PCBs for disposal and storage is prescribed by 
EPA in 40 CFR 761.60 and 761.65.
10  An ammonium nitrate mixed fertilizer is a fertilizer formulation, 
containing less than 90% ammonium nitrate and other ingredients, which 
does not meet the definition and criteria of a Class 1 (explosive) 
material (See Sec. 173.50 of this subchapter).
11  The hazardous material must be packaged as either a liquid or a 
solid, as appropriate, depending on its physical form at 55  deg.C (131 
deg.F) at atmospheric pressure.
12  In concentrations greater than 40 percent, this material has strong 
oxidizing properties and is capable of starting fires in contact with 
combustible materials. If appropriate, a package containing this 
material must conform to the additional labeling requirements of 
Sec. 172.402 of this subchapter.
13  The words ``Inhalation Hazard'' shall be entered on each shipping 
paper in association with the shipping description, shall be marked on 
each non-bulk package in association with the proper shipping name and 
identification number, and shall be marked on two opposing sides of each 
bulk package. Size of marking on bulk package must conform to 
Sec. 172.302(b) of this subchapter. The requirements of Secs. 172.203(m) 
and 172.505 of this subchapter do not apply.
14  Motor fuel antiknock mixtures are:
a. Mixtures of one or more organic lead mixtures (such as tetraethyl 
lead, triethylmethyl lead, diethyldimethyl lead, ethyltrimethyl lead, 
and tetramethyl lead) with one or more halogen compounds (such as 
ethylene dibromide and ethylene dichloride), hydrocarbon solvents or 
other equally efficient stabilizers; or
b. tetraethyl lead.
15   Chemical kits and first aid kits are boxes, cases, etc., containing 
small amounts of various compatible dangerous goods which are used for 
medical, analytical, or testing purposes and for which exceptions are 
provided in this subchapter.

[[Page 275]]

For transportation by aircraft, any hazardous materials forbidden in 
passenger aircraft may not be included in these kits. Inner packagings 
may not exceed 250 mL for liquids or 250 g for solids and must be 
protected from other materials in the kit. The total quantity of 
hazardous materials in any one kit may not exceed either 1 L or 1 kg. 
The packing group assigned to the kit as a whole must be the most 
stringent packing group assigned to any individual substance contained 
in the kit. Kits must be packed in wooden boxes (4C1, 4C2), plywood 
boxes (4D), reconstituted wood boxes (4F), fiberboard boxes (4G) or 
plastic boxes (4H1, 4H2); these packagings must meet the requirements 
appropriate to the packing group assigned to the kit as a whole. The 
total quantity of hazardous materials in any one package may not exceed 
either 10 L or 10 kg. Kits which are carried on board transport vehicles 
for first-aid or operating purposes are not subject to the requirements 
of this subchapter.
16  This description applies to smokeless powder and other solid 
propellants that are used as powder for small arms and have been classed 
as Division 1.3 and 4.1 in accordance with Sec. 173.56 of this 
subchapter.
17  Aqueous solutions of hydrogen peroxide containing less than 8 
percent hydrogen peroxide are not subject to the requirements of this 
subchapter.
18 This description is authorized only for fire extinguishers listed in 
Sec. 173.309(b) of this subchapter meeting the following conditions:
a. Each fire extinguisher may only have extinguishing contents that are 
nonflammable, non-poisonous, non-corrosive and commercially free from 
corroding components.
b. Each fire extinguisher must be charged with a nonflammable, non- 
poisonous, dry gas that has a dew-point at or below minus 46.7  deg.C 
(minus 52  deg.F) at 101kPa (1 atmosphere) and is free of corroding 
components, to not more than the service pressure of the cylinder.
c. A fire extinguisher may not contain more than 30% carbon dioxide by 
volume or any other corrosive extinguishing agent.
d. Each fire extinguisher must be protected externally by suitable 
corrosion-resisting coating.
19  For domestic transportation only, the identification number 
``UN1075'' may be used in place of the identification number specified 
in Column (4) of the Sec. 172.101 Table. The identification number used 
must be consistent on package markings, shipping papers and emergency 
response information.
20  The transport of this substance, when in concentrations of greater 
than 10% nitroglycerin, is prohibited. Concentrations of below 5% 
nitroglycerin may be transported as a Class 3 material; see UN 1204 and 
UN 3064.
21  This material must be stabilized by appropriate means (e.g., 
addition of chemical inhibitor, purging to remove oxygen) to prevent 
dangerous polymerization (see Sec. 173.21(f) of this subchapter).
22  If the hazardous material is in dispersion in organic liquid, the 
organic liquid must have a flash point above 50  deg.C (122  deg.F).
23  This material may be transported under the provisions of Division 
4.1 only if it is so packed that the percentage of diluent will not fall 
below that stated in the shipping description at any time during 
transport. Quantities of not more than 500 g per package with not less 
than 10 percent water by mass may also be classed in Division 4.1, 
provided a negative test result is obtained when tested in accordance 
with test series 6(c) of the UN Manual of Tests and Criteria.
24  Alcoholic beverages containing more than 70 percent alcohol by 
volume must be transported as materials in Packing Group II. Alcoholic 
beverages containing more than 24 percent but not more than 70 percent 
alcohol by volume must be transported as materials in Packing Group III.
25  Until October 1, 1997, this material may be transported or offered 
for transportation in a packaging authorized under the regulations in 
effect on September 30, 1996.
26  This entry does not include ammonium permanganate, the transport of 
which is prohibited except when approved by the Associate Administrator 
for Hazardous Materials Safety.
27  Sodium carbonate peroxyhydrate is considered non-hazardous.
28  The dihydrated sodium salt of dichloroisocyanuric acid is not 
subject to the requirements of this subchapter.
29  Lithium cells and batteries and equipment containing or packed with 
lithium cells and batteries which do not comply with the provisions of 
Sec. 173.185 of this subchapter may be transported only if they are 
approved by the Associate Administrator for Hazardous Materials Safety.
30  Sulfur is not subject to the requirements of this subchapter if 
transported in a non-bulk packaging or if formed to a specific shape 
(e.g., prills, granules, pellets, pastilles, or flakes).
31  Materials which have undergone sufficient heat treatment to render 
them non-hazardous are not subject to the requirements of this 
subchapter.
32  Polymeric beads and molding compounds may be made from polystyrene, 
poly(methyl methacrylate) or other polymeric material.
33  Ammonium nitrites and mixtures of an inorganic nitrite with an 
ammonium salt are prohibited.

[[Page 276]]

34  The commercial grade of calcium nitrate fertilizer, when consisting 
mainly of a double salt (calcium nitrate and ammonium nitrate) 
containing not more than 10 percent ammonium nitrate and at least 12 
percent water of crystallization, is not subject to the requirements of 
this subchapter.
35  Antimony sulphides and oxides which do not contain more than 0.5 
percent of arsenic calculated on the total mass do not meet the 
definition of Division 6.1.
36  The maximum net quantity per package is 5 liters (1 gallon) or 5 kg 
(11 pounds).
37  Unless it can be demonstrated by testing that the sensitivity of the 
substance in its frozen state is no greater than in its liquid state, 
the substance must remain liquid during normal transport conditions. It 
must not freeze at temperatures above -15 deg.C (5 deg.F).
38  If this material shows a violent effect in laboratory tests 
involving heating under confinement, the labeling requirements of 
Special Provision 53 apply, and the material must be packaged in 
accordance with packing method OP6 in Sec. 173.225 of this subchapter. 
If the SADT of the technically pure substance is higher than 75  deg.C, 
the technically pure substance and formulations derived from it are not 
self-reactive materials and, if not meeting any other hazard class, are 
not subject to the requirements of this subchapter.
39  This substance may be carried under provisions other than those of 
Class 1 only if it is so packed that the percentage of water will not 
fall below that stated at any time during transport. When phlegmatized 
with water and inorganic inert material, the content of urea nitrate 
must not exceed 75 percent by mass and the mixture should not be capable 
of being detonated by test 1(a)(i) or test 1(a) (ii) in the UN 
Recommendations Tests and Criteria.
40  Polyester resin kits consist of two components: a base material 
(Class 3, Packing Group II or III) and an activator (organic peroxide), 
each separately packed in an inner packaging. The organic peroxide must 
be type D, E, or F, not requiring temperature control, and be limited to 
a quantity of 125 ml (4.22 ounces) per inner packaging if liquid, and 
500 g (1 pound) if solid. The components may be placed in the same outer 
packaging provided they will not interact dangerously in the event of 
leakage. Packing group will be II or III, according to the criteria for 
Class 3, applied to the base material.
43  The nitrogen content of the nitrocellulose must not exceed 11.5 
percent. Each single filter sheet must be packed between sheets of 
glazed paper. The portion of glazed paper between the filter sheets must 
not be less than 65 percent, by mass. The membrane filters/paper 
arrangement must not be liable to propagate a detonation as tested by 
one of the tests described in the UN Recommendations, Tests and 
Criteria, Part I, Test series 1 (a). Packagings should be so constructed 
that explosion is not possible by reason of increased internal pressure.
44  The formulation must be prepared so that it remains homogeneous and 
does not separate during transport. Formulations with low nitrocellulose 
contents and neither showing dangerous properties when tested for their 
ability to detonate, deflagrate or explode when heated under defined 
confinement by the appropriate test methods and criteria in the UN 
Recommendations, Tests and Criteria, nor being a flammable solid when 
tested in accordance with Appendix E to Part 173 of this subchapter 
(chips, if necessary, crushed and sieved to a particle size of less than 
1.25 mm) are not subject to this subchapter.
45  Temperature should be maintained between 18 deg.C (64.4 deg.F) and 
40 deg.C (104 deg.F). Tanks containing solidified methacrylic acid must 
not be reheated during transport.
46  This material must be packed in accordance with packing method OP6 
(see Sec. 173.225 of this subchapter). During transport, it must be 
protected from direct sunshine and stored (or kept) in a cool and well-
ventilated place, away from all sources of heat.
47  Mixtures of solids which are not subject to this subchapter and 
flammable liquids may be transported under this entry without first 
applying the classification criteria of Division 4.1, provided there is 
no free liquid visible at the time the material is loaded or at the time 
the packaging or transport unit is closed. Each packaging must 
correspond to a design type that has passed a leakproofness test at the 
Packing Group II level. Small inner packagings consisting of sealed 
packets containing less than 10 ml of a Class 3 liquid in Packing Group 
II or III absorbed onto a solid material are not subject to this 
subchapter provided there is no free liquid in the packet.
48  Mixtures of solids which are not subject to this subchapter and 
toxic liquids may be transported under this entry without first applying 
the classification criteria of Division 6.1, provided there is no free 
liquid visible at the time the material is loaded or at the time the 
packaging or transport unit is closed. Each packaging must correspond to 
a design type that has passed a leakproofness test at the Packing Group 
II level. This entry may not be used for solids containing a Packing 
Group I liquid.
49  Mixtures of solids which are not subject to this subchapter and 
corrosive liquids may be transported under this entry without first 
applying the classification criteria of Class 8, provided there is no 
free

[[Page 277]]

liquid visible at the time the material is loaded or at the time the 
packaging or transport unit is closed. Each packaging must correspond to 
a design type that has passed a leakproofness test at the Packing Group 
II level.
50  Cases, cartridge, empty with primer which are made of metallic or 
plastic casings and meeting the classification criteria of Division 1.4 
are not regulated for domestic transportation.
51  This description applies to items previously described as ``Toy 
propellant devices, Class C'' and includes reloadable kits. Model rocket 
motors containing 30 grams or less propellant are classed as Division 
1.4S and items containing more than 30 grams of propellant but not more 
than 62.5 grams of propellant are classed as Division 1.4C.
52  Ammonium nitrate fertilizers may not meet the definition and 
criteria of Class 1 (explosive) material (see Sec. 173.50 of this 
subchapter).
53  Packages of these materials must bear the subsidiary risk label, 
``EXPLOSIVE'', unless otherwise provided in this subchapter or through 
an approval issued by the Associate Administrator for Hazardous 
Materials Safety, or the competent authority of the country of origin. A 
copy of the approval shall accompany the shipping papers.
54  Maneb or maneb preparations not meeting the definition of Division 
4.3 or any other hazard class are not subject to the requirements of 
this subchapter when transported by motor vehicle, rail car, or 
aircraft.
55  This device must be approved in accordance with Sec. 173.56 of this 
subchapter by the Associate Administrator for Hazardous Materials 
Safety.
56  A means to interrupt and prevent detonation of the detonator from 
initiating the detonating cord must be installed between each electric 
detonator and the detonating cord ends of the jet perforating guns 
before the charged jet perforating guns are offered for transportation.
57  Maneb or Maneb preparations stabilized against self-heating need not 
be classified in Division 4.2 when it can be demonstrated by testing 
that a volume of 1 m3 of substance does not self-ignite and 
that the temperature at the center of the sample does not exceed 200 
deg.C, when the sample is maintained at a temperature of not less than 
75  deg.C # 2  deg.C for a period of 24 hours, in accordance with 
procedures set forth for testing self-heating materials in the UN Manual 
of Tests and Criteria.
58  Aqueous solutions of Division 5.1 inorganic solid nitrate substances 
are considered as not meeting the criteria of Division 5.1 if the 
concentration of the substances in solution at the minimum temperature 
encountered in transport is not greater than 80% of the saturation 
limit.
59  Ferrocerium, stabilized against corrosion, with a minimum iron 
content of 10 percent is not subject to the requirements of this 
subchapter.
60  After September 30, 1997, an oxygen generator, chemical, that is 
shipped with its means of initiation attached must incorporate at least 
two positive means of preventing unintentional actuation of the 
generator, and be classed and approved by the Associate Administrator 
for Hazardous Materials Safety. The procedures for approval of a 
chemical oxygen generator that contains an explosive means of initiation 
(e.g., a primer or electric match) are specified in Sec. 173.56 of this 
subchapter. Each person who offers a chemical oxygen generator for 
transportation after September 30, 1997, shall: (1) ensure that it is 
offered in conformance with the conditions of the approval; (2) maintain 
a copy of the approval at each facility where the chemical oxygen 
generator is packaged; and (3) mark the approval number on the outside 
of the package.
64  The group of alkali metals includes lithium, sodium, potassium, 
rubidium, and caesium.
65  The group of alkaline earth metals includes magnesium, calcium, 
strontium, and barium.
66  Formulations of these substances containing not less than 30 percent 
non-volatile, non-flammable phlegmatizer are not subject to this 
subchapter.
70  Black powder that has been classed in accordance with the 
requirements of Sec. 173.56 of this subchapter may be reclassed and 
offered for domestic transportation as a Division 4.1 material if it is 
offered for transportation and transported in accordance with the 
limitations and packaging requirements of Sec. 173.170 of this 
subchapter.
74  During transport, this material must be protected from direct 
sunshine and stored or kept in a cool and well-ventilated place, away 
from all sources of heat.
77  For domestic transportation, a Division 5.1 subsidiary risk label is 
required only if a carbon dioxide and oxygen mixture contains more than 
23.5% oxygen.
81  Polychlorinated biphenyl items, as defined in 40 CFR 761.3, for 
which specification packagings are impractical, may be packaged in non-
specification packagings meeting the general packaging requirements of 
subparts A and B of part 173 of this subchapter. Alternatively, the item 
itself may be used as a packaging if it meets the general packaging 
requirements of subparts A and B of part 173 of this subchapter.
101  The name of the particular substance or article must be specified.

[[Page 278]]

102  The ends of the detonating cord must be tied fast so that the 
explosive cannot escape.The articles may be transported as in Division 
1.4 Compatibility Group D (1.4D) if all of the conditions specified in 
Sec. 173.63(a) of this subchapter are met.
103  Detonators which will not mass detonate and undergo only limited 
propagation in the shipping package may be assigned to 1.4B 
classification code. Mass detonate means that more than 90 percent of 
the devices tested in a package explode practically simultaneously. 
Limited propagation means that if one detonator near the center of a 
shipping package is exploded, the aggregate weight of explosives, 
excluding ignition and delay charges, in this and all additional 
detonators in the outside packaging that explode may not exceed 25 
grams.
104  Detonators which meet the following conditions may be assigned to 
1.4S classification code: Each detonator may contain no more than 1 g of 
explosive, excluding ignition and delay charges, and if one detonator 
near the center of a package detonates it will not cause functioning of 
any other device in the same or adjacent packages.
105  The word ``Agents'' may be used instead of ``Explosives'' when 
approved by the Associate Administrator for Hazardous Materials Safety.
106  The recognized name of the particular explosive may be specified in 
addition to the type.
107  The classification of the substance is expected to vary especially 
with the particle size and packaging but the border lines have not been 
experimentally determined; appropriate classifications should be 
verified following the test procedures in Secs. 173.57 and 173.58 of 
this subchapter.
108  Fireworks must be so constructed and packaged that loose 
pyrotechnic composition will not be present in packages during 
transportation.
109  Rocket motors must be nonpropulsive in transportation unless 
approved in accordance with Sec. 173.56 of this subchapter. A rocket 
motor to be considered ``nonpropulsive'' must be capable of unrestrained 
burning and must not appreciably move in any direction when ignited by 
any means.
110  Cartridges containing 3.2 grams or less of deflagrating 
(propellant) explosives installed in a fire extinguisher are not subject 
to the requirements of this subchapter.
111  Explosive substances of Division 1.1 Compatibility Group A (1.1A) 
are forbidden for transportation if dry or not desensitized, unless 
incorporated in a device.
113  The sample must be given a tentative approval by an agency or 
laboratory in accordance with Sec. 173.56 of this subchapter.
114  Jet perforating guns, charged, oil well, without detonator may be 
reclassed to Division 1.4 Compatibility Group D (1.4D) if the following 
conditions are met:
a. The total weight of the explosive contents of the shaped charges 
assembled in the guns does not exceed 90.5 kg (200 pounds) per vehicle; 
and
b. The guns are packaged in accordance with Packing Method US006 as 
specified in Sec. 173.62 of this subchapter.
115  Boosters with detonator, detonator assemblies and boosters with 
detonators in which the total explosive charge per unit does not exceed 
25 g, and which will not mass detonate and undergo only limited 
propagation in the shipping package may be assigned to 1.4B 
classification code. Mass detonate means more than 90 percent of the 
devices tested in a package explode practically simultaneously. Limited 
propagation means that if one booster near the center of the package is 
exploded, the aggregate weight of explosives, excluding ignition and 
delay charges, in this and all additional boosters in the outside 
packaging that explode may not exceed 25 g.
116  Fuzes, detonating may be classed in Division 1.4 if the fuzes do 
not contain more than 25 g of explosive per fuze and are made and 
packaged so that they will not cause functioning of other fuzes, 
explosives or other explosive devices if one of the fuzes detonates in a 
shipping packaging or in adjacent packages.
117  If shipment of the explosive substance is to take place at a time 
that freezing weather is anticipated, the water contained in the 
explosive substance must be mixed with denatured alcohol so that 
freezing will not occur.
118  This substance may not be transported under the provisions of 
Division 4.1 unless specifically authorized by the Associate 
Administrator for Hazardous Materials Safety.
119  This substance, when in quantities of not more than 11.5 kg (25.3 
pounds), with not less than 10 percent water, by mass, also may be 
classed in Division 4.1, provided a negative test result is obtained 
when tested in accordance with test series 6(c) of the UN Manual of 
Tests and Criteria.
120  The phlegmatized substance must be significantly less sensitive 
than dry PETN.
121  This substance, when containing less alcohol, water or phlegmatizer 
than specified, may not be transported unless approved by the Associate 
Administrator for Hazardous Materials Safety.
123  Any explosives, blasting, type C containing chlorates must be 
segregated from explosives containing ammonium nitrate or other ammonium 
salts.
125  Lactose or glucose or similar materials may be used as a 
phlegmatizer provided

[[Page 279]]

that the substance contains not less than 90%, by mass, of phlegmatizer. 
These mixtures may be classified in Division 4.1 when tested in 
accordance with test series 6(c) of the UN Manual of Tests and Criteria 
and approved by the Associate Administrator for Hazardous Materials 
Safety. Testing must be conducted on at least three packages as prepared 
for transport. Mixtures containing at least 90%, by mass, of 
phlegmatizer are not subject to the requirements of this subchapter. 
Packages containing mixtures with not less than 98% by mass, of 
phlegmatizer need not bear a POISON subsidiary risk label.
127  Mixtures containing oxidizing and organic materials transported 
under this entry may not meet the definition and criteria of a Class 1 
material. (See Sec. 173.50 of this subchapter.)
128  Notwithstanding the provisions of Sec. 172.101(c)(12), an aluminum 
smelting by-product or aluminum remelting by-product described under 
this entry, in Packing Group II or III, may be packaged in accordance 
with Special Provision B115 of this section.

    (2) ``A'' codes. These provisions apply only to transportation by 
aircraft:

                         Code/Special Provisions

A1  Single packagings are not permitted on passenger aircraft.
A2  Single packagings are not permitted on aircraft.
A3  For combination packagings, if glass inner packagings (including 
ampoules) are used, they must be packed with absorbent material in 
tightly closed metal receptacles before packing in outer packagings.
A4  Liquids having an inhalation toxicity of Packing Group I are not 
permitted on aircraft.
A5  Solids having an inhalation toxicity of Packing Group I are not 
permitted on passenger aircraft and may not exceed a maximum net 
quantity per package of 15 kg (33 pounds) on cargo aircraft.
A6  For combination packagings, if plastic inner packagings are used, 
they must be packed in tightly closed metal receptacles before packing 
in outer packagings.
A7  Steel packagings must be corrosion-resistant or have protection 
against corrosion.
A8  For combination packagings, if glass inner packagings (including 
ampoules) are used, they must be packed with cushioning material in 
tightly closed metal receptacles before packing in outer packagings.
A9  For combination packagings, if plastic bags are used, they must be 
packed in tightly closed metal receptacles before packing in outer 
packagings.
A10  When aluminum or aluminum alloy construction materials are used, 
they must be resistant to corrosion.
A11  For combination packagings, when metal inner packagings are 
permitted, only specification cylinders constructed of metals which are 
compatible with the hazardous material may be used.
A13  Non-bulk packagings conforming to Sec. 173.197 of this subchapter 
not exceeding 16 kilograms (35 pounds) gross mass containing only used 
sharps are permitted for transportation by aircraft. Maximum liquid 
content in each inner packaging may not exceed 50 milliliters (1.7 
ounces).
A14  Non-bulk packagings of regulated medical waste conforming to 
Sec. 173.197 of this subchapter not exceeding 16 kilograms (35 pounds) 
gross mass for solid waste or 12 liters (3 gallons) total volume for 
liquid waste may be transported by passenger and cargo aircraft when 
means of transportation other than air are impracticable or not 
available.
A19  Combination packagings consisting of outer fiber drums or plywood 
drums, with inner plastic packagings, are not authorized for 
transportation by aircraft.
A20  Plastic bags as inner receptacles of combination packagings are not 
authorized for transportation by aircraft.
A29  Combination packagings consisting of outer expanded plastic boxes 
with inner plastic bags are not authorized for transportation by 
aircraft.
A30  Ammonium permanganate is not authorized for transportation on 
aircraft.
A34  Aerosols containing a corrosive liquid in Packing Group II charged 
with a gas are not permitted for transportation by aircraft.
A51 When transported by cargo-only aircraft, an oxygen generator must 
conform to the provisions of an approval issued under Special Provision 
60 and be contained in a packaging prepared and originally offered for 
transportation by the approval holder.

    (3) ``B'' codes. These provisions apply only to bulk packagings:

                         Code/Special Provisions

B1  If the material has a flash point at or above 38  deg.C (100  deg.F) 
and below 93  deg.C (200  deg.F), then the bulk packaging requirements 
of Sec. 173.241 of this subchapter are applicable. If the material has a 
flash point of less than 38  deg.C (100  deg.F), then the bulk packaging 
requirements of Sec. 173.242 of this subchapter are applicable.
B2  MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo 
tanks are not authorized.
B3  MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo 
tanks and DOT 57 portable tanks are not authorized.

[[Page 280]]

B4  MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo 
tanks are not authorized.
B5  Only ammonium nitrate solutions with 35 percent or less water that 
will remain completely in solution under all conditions of transport at 
a maximum lading temperature of 116 deg.C (240 deg.F) are authorized for 
transport in the following bulk packagings: MC 307, MC 312, DOT 407 and 
DOT 412 cargo tanks with at least 172 kPa (25 psig) design pressure. The 
packaging shall be designed for a working temperature of at least 
121 deg.C (250 deg.F). Only Specifications MC 304, MC 307 or DOT 407 
cargo tank motor vehicles are authorized for transportation by vessel.
B6  Packagings shall be made of steel.
B7  Safety relief devices are not authorized on multi-unit tank car 
tanks. Openings for safety relief devices shall be plugged or blank 
flanged.
B8  Packagings shall be made of nickel, stainless steel, or steel with 
nickel, stainless steel, lead or other suitable corrosion resistant 
metallic lining.
B9  Bottom outlets are not authorized.
B10  MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 
cargo tanks, and DOT 57 portable tanks are not authorized.
B11  Tank car tanks must have a test pressure of at least 2,068.5 kPa 
(300 psi). Cargo and portable tanks must have a design pressure of at 
least 1,207 kPa (175 psig).
B13  A nonspecification cargo tank motor vehicle authorized in 
Sec. 173.247 of this subchapter must be at least equivalent in design 
and in construction to a DOT 406 cargo tank or MC 306 cargo tank (if 
constructed before August 31, 1995), except as follows:
a. Packagings equivalent to MC 306 cargo tanks are excepted from 
Secs. 178.340-10, certification; 178.341-4, vents; and 178.341-5, 
emergency flow control.
b. Packagings equivalent to DOT 406 cargo tanks are excepted from 
Secs. 178.345-7(d)(5), circumferential reinforcements; 178.345-14, 
marking; 178.345-15, certification; 178.346-10, pressure relief; and 
178.346-11, outlets.
c. Packagings are excepted from the design stress limits at elevated 
temperatures, as described in the ASME Code. However, the design stress 
limits may not exceed 25 percent of the stress, as specified in the 
Aluminum Association's ``Aluminum Standards and Data'' (7th Edition June 
1982), for 0 temper at the maximum design temperature of the cargo tank.
B14  Each bulk packaging, except a tank car or a multi-unit-tank car 
tank, must be insulated with an insulating material so that the overall 
thermal conductance at 15.5 deg. C (60 deg. F) is no more than 1.5333 
kilojoules per hour per square meter per degree Celsius (0.075 Btu per 
hour per square foot per degree Fahrenheit) temperature differential. 
Insulating materials must not promote corrosion to steel when wet. 
Notwithstanding the requirements in Sec. 171.14(b)(4)(ii) of this 
subchapter, compliance with this provision is delayed until October 1, 
1994, for a bulk packaging containing a material poisonous by inhalation 
which, when in contact with moisture, becomes highly corrosive to the 
tank and could cause a degree of corrosion under an insulation blanket 
that would have an adverse effect on tank integrity.
B15  Packagings must be protected with non-metallic linings impervious 
to the lading or have a suitable corrosion allowance.
B16  The lading must be completely covered with nitrogen, inert gas or 
other inert materials.
B18  Open steel hoppers or bins are authorized.
B23  Tanks must be made of steel that is rubber lined or unlined. 
Unlined tanks must be passivated before being placed in service. If 
unlined tanks are washed out with water, they must be repassivated prior 
to return to service. Lading in unlined tanks must be inhibited so that 
the corrosive effect on steel is not greater than that of hydrofluoric 
acid of 65 percent concentration.
B25  Packagings must be made from monel or nickel or monel-lined or 
nickel-lined steel.
B26  Tanks must be insulated. Insulation must be at least 100 mm (3.9 
inches) except that the insulation thickness may be reduced to 51 mm (2 
inches) over the exterior heater coils. Interior heating coils are not 
authorized. The packaging may not be loaded with a material outside of 
the packaging's design temperature range. In addition, the material also 
must be covered with an inert gas or the container must be filled with 
water to the tank's capacity. After unloading, the residual material 
also must be covered with an inert gas or the container must be filled 
with water to the tank's capacity.
B27  Tanks must have a service pressure of 1,034 kPa (150 psig). Tank 
car tanks must have a test pressure rating of 1,379 kPa (200 psi). 
Lading must be blanketed at all times with a dry inert gas at a pressure 
not to exceed 103 kPa (15 psig).
B28  Packagings must be made of stainless steel.
B30  MC 312, MC 330, MC 331 and DOT 412 cargo tanks and DOT 51 portable 
tanks must be made of stainless steel, except that steel other than 
stainless steel may be used in accordance with the provisions of 
Sec. 173.24b(b) of this subchapter. Thickness of stainless steel for 
tank shell and heads for cargo tanks and portable tanks must be the 
greater of 7.62 mm (0.300 inch) or the thickness required for a tank 
with a design pressure at least equal to 1.5 times the

[[Page 281]]

vapor pressure of the lading at 46 deg.C (115 deg. F). In addition, MC 
312 and DOT 412 cargo tank motor vehicles must:
a. Be ASME Code (U) stamped for 100% radiography of all pressure-
retaining welds;
b. Have accident damage protection which conforms with Sec. 178.345-8 of 
this subchapter;
c. Have a MAWP or design pressure of at least 87 psig: and
d. Have a bolted manway cover.
B32  MC 312, MC 330, MC 331, DOT 412 cargo tanks and DOT 51 portable 
tanks must be made of stainless steel, except that steel other than 
stainless steel may be used in accordance with the provisions of 
Sec. 173.24b(b) of this subchapter. Thickness of stainless steel for 
tank shell and heads for cargo tanks and portable tanks must be the 
greater of 6.35 mm (0.250 inch) or the thickness required for a tank 
with a design pressure at least equal to 1.3 times the vapor pressure of 
the lading at 46 deg.C (115 deg. F). In addition, MC 312 and DOT 412 
cargo tank motor vehicles must:
a. Be ASME Code (U) stamped for 100% radiography of all pressure-
retaining welds;
b. Have accident damage protection which conforms with Sec. 178.345-8 of 
this subchapter;
c. Have a MAWP or design pressure of at least 87 psig; and
d. Have a bolted manway cover.
B33  MC 300, MC 301, MC 302, MC 303, MC 305, MC 306, and DOT 406 cargo 
tanks equipped with a 1 psig normal vent used to transport gasoline must 
conform to Table 1 of this Special Provision. Based on the volatility 
class determined by using ASTM D439 and the Reid vapor pressure (RVP) of 
the particular gasoline, the maximum lading pressure and maximum ambient 
temperature permitted during the loading of gasoline may not exceed that 
listed in Table I.

             Table I--Maximum Ambient Temperature--Gasoline             
------------------------------------------------------------------------
                                            Maximum lading and ambient  
       ASTM D439 volatility class            temperature (see note 1)   
------------------------------------------------------------------------
A......................................  131 deg. F                     
(RVP<=9.0 psia)                                                         
B......................................  124 deg. F                     
(RVP<=10.0 psia)                                                        
C......................................  116 deg. F                     
(RVP<=11.5 psia)                                                        
D......................................  107 deg. F                     
(RVP<=13.5 psia)                                                        
E......................................  100 deg. F                     
(RVP<=15.0 psia)                                                        
------------------------------------------------------------------------
 AAAANote 1: Based on maximum lading pressure of 1 psig at top of cargo 
  tank.                                                                 

B35  Tank cars containing hydrogen cyanide may be alternatively marked 
``Hydrocyanic acid, liquefied'' if otherwise conforming to marking 
requirements in subpart D of this part. Tank cars marked ``HYDROCYANIC 
ACID'' prior to October 1, 1991 do not need to be remarked.
B37  The amount of nitric oxide charged into any tank car tank may not 
exceed 1,379 kPa (200 psig) at 21 deg. C (70 deg. F).
B42  Tank cars must have a test pressure of 34.47 Bar (500 psig) or 
greater and conform to Class 105J. Each tank car must have a safety 
relief device having a start-to-discharge pressure of 10.34 Bar (150 
psig). The tank car specification may be marked to indicate a test 
pressure of 13.79 Bar (200 psig).
B44  All parts of valves and safety relief devices in contact with 
lading must be of a material which will not cause formation of 
acetylides.
B45  Safety relief valves must be equipped with stainless steel or 
platinum frangible discs approved by the AAR Committee on Tank Cars.
B46  The detachable protective housing for the loading and unloading 
valves of multi-unit tank car tanks must withstand tank test pressure 
and must be approved by the Associate Administrator for Hazardous 
Materials Safety.
B47  A safety relief device with a start-to-discharge pressure setting 
of 310 kPa (45 psig) is permitted.
B48  Portable tanks in sodium metal service may be visually inspected at 
least once every 5 years instead of being retested hydrostatically. Date 
of the visual inspection must be stenciled on the tank near the other 
required markings.
B49  Tanks equipped with interior heater coils are not authorized. 
Single unit tank car tanks must have a safety relief valve set at no 
more than 1551 kPa (225 psig).
B50  Each valve outlet of a multi-unit tank car tank must be sealed by a 
threaded solid plug or a threaded cap with inert luting or gasket 
material. Valves must be of stainless steel and the caps, plugs, and 
valve seats must be of a material that will not deteriorate as a result 
of contact with the lading.
B52  Notwithstanding the provisions of Sec. 173.24b of this subchapter, 
non-reclosing pressure relief devices are authorized on DOT 57 portable 
tanks.
B53  Except for IBCs, packagings must be made of either aluminum or 
steel.
B54  Open-top, sift-proof rail cars are also authorized.
B55  Water-tight, sift-proof, closed-top, metal-covered hopper cars, 
equipped with a venting arrangement (including flame arrestors) approved 
by the Associate Administrator for Hazardous Materials Safety are also 
authorized.
B56  Water-tight, sift-proof, closed-top, metal-covered hopper cars are 
also authorized if the particle size of the hazardous material is not 
less than 149 microns.

[[Page 282]]

B57  Class 115A tank car tanks used to transport chloroprene must be 
equipped with a safety vent of a diameter not less than 305 mm (12 
inches) with a maximum rupture disc pressure of 45 psi.
B59  Water-tight, sift-proof, closed-top, metal-covered hopper cars are 
also authorized provided that the lading is covered with a nitrogen 
blanket.
B60  DOT Specification 106A500X multi-unit tank car tanks that are not 
equipped with a safety relief device of any type are authorized. For the 
transportation of phosgene, the outage must be sufficient to prevent 
tanks from becoming liquid full at 55  deg.C (130  deg.F).
B61  Written procedures covering details of tank car appurtenances, dome 
fittings, safety devices, and marking, loading, handling, inspection, 
and testing practices must be approved by the Associate Administrator 
for Hazardous Materials Safety before any single unit tank car tank is 
offered for transportation.
B64  Each single unit tank car tank built after December 31, 1990 must 
be equipped with a tank head puncture resistance system that conforms to 
Sec. 179.16 of this subchapter.
B65  Tank cars must have a test pressure of 34.47 Bar (500 psig) or 
greater and conform to Class 105A. Each tank car must have a pressure 
relief device having a start-to-discharge pressure of 15.51 Bar (225 
psig). The tank car specification may be marked to indicate a test 
pressure of 20.68 Bar (300 psig).
B66  Each tank must be equipped with gas tight valve protection caps. 
Outage must be sufficient to prevent tanks from becoming liquid full at 
55 deg.C (130 deg.F). Specification 110A500W tanks must be stainless 
steel.
B67  All valves and fittings must be protected by a securely attached 
cover made of metal not subject to deterioration by the lading, and all 
valve openings, except safety valve, must be fitted with screw plugs or 
caps to prevent leakage in the event of valve failure.
B68  Sodium must be in a molten condition when loaded and allowed to 
solidify before shipment. Outage must be at least 5 percent at 98 deg.C 
(208 deg.F). Bulk packagings must have exterior heating coils fusion 
welded to the tank shell which have been properly stress relieved. The 
only tank car tanks authorized are Class DOT 105 tank cars having a test 
pressure of 2,069 kPa (300 psig) or greater.
B69  Dry sodium cyanide or potassium cyanide may be shipped in sift-
proof weather-resistant metal covered hopper cars, covered motor 
vehicles, portable tanks or non-specification bins. Bins must be 
approved by the Associate Administrator for Hazardous Materials Safety. 
Flexible intermediate bulk containers (FIBCs) may also be used under 
conditions approved by the Associate Administrator for Hazardous 
Materials Safety.
B70  If DOT 103ANW tank car tank is used: All cast metal in contact with 
the lading must have 96.7 percent nickel content; and the lading must be 
anhydrous and free from any impurities.
B71  Tank cars must have a test pressure of 20.68 Bar (300 psig) or 
greater and conform to Class 105, 112, 114 or 120.
B72  Tank cars must have a test pressure of 34.47 Bar (500 psig) or 
greater and conform to Class 105J, 106, or 110.
B74  Tank cars must have a test pressure of 20.68 Bar (300 psig) or 
greater and conform to Class 105S, 106, 110, 112J, 114J or 120S.
B76  Tank cars must have a test pressure of 20.68 Bar (300 psig) or 
greater and conform to Class 105S, 112J, 114J or 120S. Each tank car 
must have a safety relief device having a start-to-discharge pressure of 
10.34 Bar (150 psig). The tank car specification may be marked to 
indicate a test pressure of 13.79 Bar (200 psig).
B77  Other packaging are authorized when approved by the Associate 
Administrator for Hazardous Materials Safety.
B78  Tank cars must have a test pressure of 4.14 Bar (60 psig) or 
greater and conform to Class 103, 104, 105, 109, 111, 112, 114 or 120. 
Heater pipes must be of welded construction designed for a test pressure 
of 500 pounds per square inch. A 25 mm (1 inch) woven lining of asbestos 
or other approved material must be placed between the bolster slabbing 
and the bottom of the tank. If a tank car tank is equipped with a safety 
vent of the frangible disc type, the frangible disc must be perforated 
with a 3.2 mm (0.13 inch) diameter hole. If a tank car tank is equipped 
with a safety relief valve, the tank car tank must also be equipped with 
a vacuum relief valve.
B80  Each cargo tank must have a minimum design pressure of 276 kPa (40 
psig).
B81  Venting and pressure relief devices for tank car tanks and cargo 
tanks must be approved by the Associate Administrator for Hazardous 
Materials Safety.
B82  Cargo tanks and portable tanks are not authorized.
B83  Bottom outlets are prohibited on tank car tanks transporting 
sulfuric acid in concentrations over 65.25 percent.
B84  Packagings must be protected with non-metallic linings impervious 
to the lading or have a suitable corrosion allowance for sulfuric acid 
or spent sulfuric acid in concentration up to 65.25 percent.
B85  Cargo tanks must be marked with the name of the lading in 
accordance with the requirements of Sec. 172.302(b).
B90  Steel tanks conforming or equivalent to ASME specifications which 
contain solid or semisolid residual motor fuel antiknock mixture 
(including rust, scale, or

[[Page 283]]

other contaminants) may be shipped by rail freight or highway. The tank 
must have been designed and constructed to be capable of withstanding 
full vacuum. All openings must be closed with gasketed blank flanges or 
vapor tight threaded closures.
B100  Intermediate bulk containers are not authorized.
B101  Authorized only in metal intermediate bulk containers.
B103  If an intermediate bulk container is used, the package must be 
transported in a closed freight container or transport vehicle.
B104  Intermediate bulk containers must be provided with a device to 
allow venting during transport. The inlet to the pressure relief valve 
must communicate with the vapor space of the packaging and lading during 
transport.
B105  Authorized only in rigid intermediate bulk containers.
B106  Authorized in intermediate bulk containers that are vapor tight.
B108  Authorized in sift-proof, water-resistant flexible, fiberboard or 
wooden intermediate bulk containers; packed in a closed transport 
vehicle.
B109  Not authorized in flexible intermediate bulk containers.
B110  This material also may be packaged in IBCs authorized in 
Sec. 173.242(d) of this subchapter.
B115  Rail cars, highway trailers, roll-on/roll-off bins, or other non-
specification bulk packagings are authorized. Packagings must be sift-
proof, prevent liquid water from reaching the hazardous material, and be 
provided with sufficient venting to preclude dangerous accumulation of 
flammable, corrosive, or toxic gaseous emissions such as methane, 
hydrogen, and ammonia. The material must be loaded dry.

    (4) ``H'' codes. These provisions apply only to transportation by 
highway. [Reserved]
    (5) ``N'' codes. These provisions apply only to non-bulk packagings:

                         Code/Special Provisions

N3  Glass inner packagings are permitted in combination or composite 
packagings only if the hazardous material is free from hydrofluoric 
acid.
N4  For combination or composite packagings, glass inner packagings, 
other than ampoules, are not permitted.
N5  Glass materials of construction are not authorized for any part of a 
packaging which is normally in contact with the hazardous material.
N6  Battery fluid packaged with electric storage batteries, wet or dry, 
must conform to the packaging provisions of Sec. 173.159 (g) or (h) of 
this subchapter.
N7  The hazard class or division number of the material must be marked 
on the package in accordance with Sec. 172.302 of this subchapter. 
However, the hazard label corresponding to the hazard class or division 
may be substituted for the marking.
N8  Nitroglycerin solution in alcohol may be transported under this 
entry only when the solution is packed in metal cans of not more than 1 
L capacity each, overpacked in a wooden box containing not more than 5 
L. Metal cans must be completely surrounded with absorbent cushioning 
material. Wooden boxes must be completely lined with a suitable material 
impervious to water and nitroglycerin.
N9  If the substance is impregnated with less than 5% oil, it is 
excepted from the labeling requirements of subpart D of this part and 
the packaging tests of subpart M of part 178 of this subchapter.
N10  Lighters and their inner packagings, which have been approved by 
the Associate Administrator for Hazardous Materials Safety (see 
Sec. 173.21(i) of this subchapter), must be packaged in one of the 
following outer packagings at the Packing Group II level: 4C1 or 4C2 
wooden boxes; 4D plywood boxes; 4F reconstituted wood boxes; 4G 
fiberboard boxes; or 4H1 or 4H2 plastic boxes.
N11  This material is excepted for the specification packaging 
requirements of this subchapter if the material is packaged in strong, 
tight non-bulk packaging meeting the requirements of subparts A and B of 
part 173 of this subchapter.
N12  Plastic packagings are not authorized.
N20  A 5M1 multi-wall paper bag is authorized if transported in a closed 
transport vehicle.
N25  Steel single packagings are not authorized.
N32  Aluminum materials of construction are not authorized for single 
packagings.
N33  Aluminum drums are not authorized.
N34  Aluminum construction materials are not authorized for any part of 
a packaging which is normally in contact with the hazardous material.
N36  Aluminum or aluminum alloy construction materials are permitted 
only for halogenated hydrocarbons that will not react with aluminum.
N37  This material may be shipped in an integrally-lined fiber drum (1G) 
which meets the general packaging requirements of subpart B of part 173 
of this subchapter, the requirements of part 178 of this subchapter at 
the packing group assigned for the material and to any other special 
provisions of column 7 of the Sec. 172.101 table.
N40  This material is not authorized in the following packagings:

[[Page 284]]

a. A combination packaging consisting of a 4G fiberboard box with inner 
receptacles of glass or earthenware;
b. A single packaging of a 4C2 sift-proof, natural wood box; or
c. A composite packaging 6PG2 (glass, porcelain or stoneware receptacles 
within a fiberboard box).
N41  Metal construction materials are not authorized for any part of a 
packaging which is normally in contact with the hazardous material.
N42  1A1 drums made of carbon steel with thickness of body and heads of 
not less than 1.3 mm (0.050 inch) and with a corrosion-resistant 
phenolic lining are authorized for stabilized benzyl chloride if tested 
and certified to the Packing Group I performance level at a specific 
gravity of not less than 1.8.
N43  Metal drums are permitted as single packagings only if constructed 
of nickel or monel.
N45  Copper cartridges are authorized as inner packagings if the 
hazardous material is not in dispersion.
N65  Outage must be sufficient to prevent cylinders or spheres from 
becoming liquid full at 55  deg.C (130  deg.F). The vacant space 
(outage) may be charged with a nonflammable nonliquefied compressed gas 
if the pressure in the cylinder or sphere at 55  deg.C (130  deg.F) does 
not exceed 125 percent of the marked service pressure.
N71  Combination packagings consisting of inner glass packagings of not 
over 1.0 L (0.3 gallon) capacity each or inner metal packagings of not 
over 5.0 L (1 gallon) capacity each, placed in strong outer packagings, 
are authorized. Packagings are not subject to the requirements of part 
178 of this subchapter.
N72  Packagings must be examined by the Bureau of Explosives and 
approved by the Associate Administrator for Hazardous Materials Safety.
N73  Packagings consisting of outer wooden or fiberboard boxes with 
inner glass, metal or other strong containers; metal or fiber drums; 
kegs or barrels; or strong metal cans are authorized and need not 
conform to the requirements of part 178 of this subchapter.
N74  Packages consisting of tightly closed inner containers of glass, 
earthenware, metal or polyethylene, capacity not over 0.5 kg (1.1 
pounds) securely cushioned and packed in outer wooden barrels or wooden 
or fiberboard boxes, not over 15 kg (33 pounds) net weight, are 
authorized and need not conform to the requirements of part 178 of this 
subchapter.
N75  Packages consisting of tightly closed inner packagings of glass, 
earthenware or metal, securely cushioned and packed in outer wooden 
barrels or wooden or fiberboard boxes, capacity not over 2.5 kg (5.5 
pounds) net weight, are authorized and need not conform to the 
requirements of part 178 of this subchapter.
N76  For materials of not more than 25 percent active ingredient by 
weight, packages consisting of inner metal packagings not greater than 
250 ml (8 ounces) capacity each, packed in strong outer packagings 
together with sufficient absorbent material to completely absorb the 
liquid contents are authorized and need not conform to the requirements 
of part 178 of this subchapter.
N77  For materials of not more than two percent active ingredients by 
weight, packagings need not conform to the requirements of part 178 of 
this subchapter, if liquid contents are absorbed in an inert material.
N78  Packages consisting of inner glass, earthenware, or polyethylene or 
other nonfragile plastic bottles or jars not over 0.5 kg (1.1 pounds) 
capacity each, or metal cans not over five pounds capacity each, packed 
in outer wooden boxes, barrels or kegs, or fiberboard boxes are 
authorized and need not conform to the requirements of part 178 of this 
subchapter. Net weight of contents in fiberboard boxes may not exceed 29 
kg (64 pounds). Net weight of contents in wooden boxes, barrels or kegs 
may not exceed 45 kg (99 pounds).
N79  Packages consisting of tightly closed metal inner packagings not 
over 0.5 kg (1.1 pounds) capacity each, packed in outer wooden or 
fiberboard boxes, or wooden barrels, are authorized and need not conform 
to the requirements of part 178 of this subchapter. Net weight of 
contents may not exceed 15 kg (33 pounds).
N80  Packages consisting of one inner metal can, not over 2.5 kg (5.5 
pounds) capacity, packed in an outer wooden or fiberboard box, or a 
wooden barrel, are authorized and need not conform to the requirements 
of part 178 of this subchapter.
N82  See Sec. 173.306 of this subchapter for classification criteria for 
flammable aerosols.

    (6) ``R'' codes. These provisions apply only to transportation by 
rail. [Reserved]
    (7) ``T'' codes. These provisions apply only to transportation in IM 
portable tanks. They are divided into two groupings, one of which 
appears as IM Tank Configurations in paragraph (c)(7)(i) of this 
section, and the second of which imposes specific requirements and 
appears in paragraph (c)(7)(ii) of this section.
    (i) IM Tank Configurations. Column 1 lists the code for the special 
provisions as specified in column 7 of the Sec. 172.101 table. Column 2 
specifies the IM tank

[[Page 285]]

type, either IM 101 (Secs. 178.270 and 178.271 of this subchapter) or IM 
102 (Secs. 178.270 and 178.272 of this subchapter). Column 3 specifies 
the minimum test pressure, in bars (1 bar = 14.5 psig), at which the 
periodic hydrostatic testing required by Sec. 173.32b of this subchapter 
must be conducted. Column 4 specifies either the section referenced for 
requirements for bottom openings or ``Prohibited'', which means bottom 
openings are prohibited. Column 5 specifies the section reference for 
requirements applicable to pressure relief devices.

                                             IM Tank Configurations                                             
                                                                                                                
                                     Minimum                                                                    
                          IM tank     test                                                                      
          Code              type    Pressure            Bottom outlets               Pressure relief devices    
                                     (bars)                                                                     
(1)                           (2)      (3)     (4).............................  (5)                            
                                                                                                                
----------------------------------------------------------------------------------------------------------------
T1......................      102        1.5   Sec.  173.32c(g)(1).............  Sec.  178.270-11(a)(1),(2)     
T2......................      102        1.5   Sec.  173.32c(g)(2).............  Sec.  178.270-11(a)(1),(2)     
T7......................      101        2.65  Sec.  173.32c(g)(1).............  Sec.  178.270-11(a)(1),(2)     
T8......................      101        2.65  Sec.  173.32c(g)(2).............  Sec.  178.270-11(a)(1),(2)     
T9......................      101        2.65  Prohibited......................  Sec.  178.270-11(a)(1),(2)     
T11.....................      101        2.65  Sec.  173.32c(g)(2).............  Sec.  178.270-11(a)(3)         
T12.....................      101        2.65  Prohibited......................  Sec.  178.270-11(a)(3)         
T13.....................      101        4     Sec.  173.32c(g)(1).............  Sec.  178.270-11(a)(1),(2)     
T14.....................      101        4     Sec.  173.32c(g)(2).............  Sec.  178.270-11(a)(1),(2)     
T15.....................      101        4     Prohibited......................  Sec.  178.270-11(a)(1),(2)     
T16.....................      101        4     Sec.  173.32c(g)(1).............  Sec.  178.270-11(a)(3)         
T17.....................      101        4     Sec.  173.32c(g)(2).............  Sec.  178.270-11(a)(3)         
T18.....................      101        4     Prohibited......................  Sec.  178.270-11(a)(3)         
T20.....................      101        6     Sec.  173.32c(g)(2).............  Sec.  178.270-11(a)(1),(2)     
T21.....................      101        6     Prohibited......................  Sec.  178.270-11(a)(1),(2)     
T22.....................      101        6     Sec.  173.32c(g)(1).............  Sec.  178.270-11(a)(1)(2)      
T23.....................      101        6     Sec.  173.32c(g)(2).............  Sec.  178.270-11(a)(3)         
T24.....................      101        6     Prohibited......................  Sec.  178.270-11(a)(3)         
T28.....................      101       10     Prohibited......................  Sec.  178.270-11(a)(1),(2)     
T39.....................      101       10     Prohibited......................  Sec.  178.270-11(a)(3)         
T43.....................      101        9     Prohibited......................  Sec.  178.270-11(a)(3)         

    (ii) IM Tank special provisions.

                         Code/Special Provisions

T25  This hazardous material is not permitted for transport in IM 
portable tanks.
T26  Each tank must have a minimum shell thickness of 6.35 mm (0.250 
inch) mild steel.
T27  Each tank must have a minimum shell thickness of 8.0 mm (0.315 
inch) mild steel.
T28  See entry for T28 in the IM Tank Configuration Table in paragraph 
(c)(7)(i) of this section.
T29  The lading must be completely covered with nitrogen, inert gas or 
other inert materials.
T30  IM 102 portable tanks without bottom openings or with bottom 
openings conforming to Sec. 173.32c(g)(1) of this subchapter are 
authorized for a hazardous material with a flash point of O deg.C 
(32 deg.F) or greater and a vapor pressure not greater than 65.5 kPa 
(9.5 psia) at 65.6 deg.C (150 deg.F).
T31  IM 102 portable tanks without bottom openings or with bottom 
openings conforming to Sec. 173.32c(g)(2) of this subchapter are 
authorized for a hazardous material with a flash point of 0  deg.C (32 
deg.F) or greater and a vapor pressure not greater than 65 kPa (9.4 
psia) at 65.6 deg.C (150 deg.F).
T32  Each tank must have a minimum shell thickness of 10.0 mm (0.394 
inch) mild steel with at least 5.0 mm (0.197 inch) lead lining.
T33  Dry phosphorus is not permitted. For transport in a molten state, 
the tank must be insulated in accordance with Note T38. Air must be 
eliminated from the interior of the tank. The tank may be heated, 
however, interior heating coils are prohibited.
T34  The IM Tank authorization is limited to aqueous solutions 
containing not more than 40% dimethylamine.
T35  Each tank must be equipped with reclosing (spring loaded) pressure 
relief valves set to discharge at pressures determined according to the 
pressure characteristics of the organic peroxide lading.
T36  Each tank must be equipped with pressure relief devices with 
sufficient venting capacity to prevent the tank from bursting.
T37  IM portable tanks are only authorized for the shipment of hydrogen 
peroxide solutions in water containing 72 percent or less hydrogen 
peroxide by weight. Pressure relief devices shall be designed to prevent 
the entry of foreign matter, the leakage of liquid and the development 
of any dangerous excess pressure. In addition, the

[[Page 286]]

tank shall be designed so that internal surfaces may be effectively 
cleaned and passivated. Each tank must be equipped with pressure relief 
devices conforming to the following requirements:

                                                                        
------------------------------------------------------------------------
                                                                Total   
                                                               venting  
                                                             capacity in
                                                               standard 
                                                              cubic feet
        Concentration of hydrogen peroxide solution            per hour 
                                                              (S.C.F.H.)
                                                              per pound 
                                                             of hydrogen
                                                               peroxide 
                                                               solution 
------------------------------------------------------------------------
52 percent or less.........................................           11
Over 52 percent but not greater than 60 percent............           22
Over 60 percent but not greater than 72 percent............           32
------------------------------------------------------------------------

T38  Each tank must be insulated with an insulating material so that the 
overall thermal conductance at 15.5 deg. C (60 deg. F) is no more than 
1.5333 kilojoules per hour per square meter per degree Celsius (0.075 
Btu per hour per square foot per degree Fahrenheit) temperature 
differential. Insulating materials must not promote corrosion to steel 
when wet. Notwithstanding the requirements in Sec. 171.14(b)(4)(ii) of 
this subchapter, compliance with this provision is delayed until October 
1, 1994, for a bulk packaging containing a material poisonous by 
inhalation which, when in contact with moisture, becomes highly 
corrosive and could cause corrosion under an insulation blanket.
T39  See entry for T39 in the IM Tank Configuration Table in paragraph 
(c)(7)(i) of this section.
T40  Each tank must have a minimum shell thickness of 10.0 mm (0.39 
inch) mild steel.
T41  Each tank must have a minimum shell thickness of 12.0 mm (0.47 
inch) mild steel.
T42  Transport in IM portable tanks is permitted only under conditions 
approved by the Associate Administrator for Hazardous Materials Safety.
T43  See entry for T43 in the IM Tank Configuration Table in paragraph 
(c)(7)(i) of this section.
T44  DOT Specification IM 101 portable tanks shall be made of stainless 
steel except that steel other than stainless steel may be used in 
accordance with the provisions of Sec. 173.24b(b) of this subchapter. 
Thickness of stainless steel for tank shell and heads must be the 
greater of 7.62 mm (0.300 inch) or the thickness required for a tank 
with a design pressure at least equal to 1.5 times the vapor pressure of 
the lading at 46  deg.C (115  deg.F).
T45  DOT Specification IM 101 portable tanks shall be made of stainless 
steel except that steel other than stainless steel may be used in 
accordance with the provisions of Sec. 173.24b(b) of this subchapter. 
Thickness of stainless steel for tank shell and heads must be the 
greater of 6.35 mm (0.250 inch) or the thickness required for a tank 
with a design pressure at least equal to 1.3 times the vapor pressure of 
the lading at 46  deg.C (115  deg.F).
T46  IM portable tanks in sodium metal service are not required to be 
hydrostatically retested.
T47  Temperature must be maintained between 18 deg.C (64.4 deg.F) and 
40 deg.C (104 deg.F) when carried in tanks. Tanks containing solidified 
methyacrylic acid may not be reheated during transport.

    (8) ``W'' codes. These provisions apply only to transportation by 
water:

                         Code/Special Provisions

W41  When offered for transportation by water, this material must be 
packaged in bales and be securely and tightly bound with rope, wire or 
similar means.
[Amdt. 172-123, 55 FR 52582, Dec. 21, 1990]

    Editorial Note: For Federal Register citations affecting 
Sec. 172.102, see the List of CFR Sections Affected in the Finding Aids 
section of this volume.



                       Subpart C--Shipping Papers



Sec. 172.200  Applicability.

    (a) Description of hazardous materials required. Except as otherwise 
provided in this subpart, each person who offers a hazardous material 
for transportation shall describe the hazardous material on the shipping 
paper in the manner required by this subpart.
    (b) This subpart does not apply to any material, other than a 
hazardous substance, hazardous waste or marine pollutant, that is--
    (1) Identified by the letter ``A'' in Column 1 of the Sec. 172.101 
Table, except when the material is offered or intended for 
transportation by air; or
    (2) Identified by the letter ``W'' in Column 1 of the Sec. 172.101 
Table, except when the material is offered or intended for 
transportation by water; or
    (3) An ORM-D, except when the material is offered or intended for 
transportation by air.
[Amdt. 172-29A, 41 FR 40677, Sept. 20, 1976, as amended by Amdt. 172-58, 
45 FR 34697, May 22, 1980; Amdt. 172-74, 47 FR 43065, Sept. 30, 1982; 
Amdt. 172-112, 53 FR 17160, May 13, 1988; Amdt. 172-127, 57 FR 52938, 
Nov. 5, 1992]

[[Page 287]]



Sec. 172.201  General entries.

    (a) Contents. When a description of hazardous material is required 
to be included on a shipping paper, that description must conform to the 
following requirements:
    (1) When a hazardous material and a material not subject to the 
requirements of this subchapter are described on the same shipping 
paper, the hazardous material description entries required by 
Sec. 172.202 and those additional entries that may be required by 
Sec. 172.203:
    (i) Must be entered first, or
    (ii) Must be entered in a color that clearly contrasts with any 
description on the shipping paper of a material not subject to the 
requirements of this subchapter, except that a description on a 
reproduction of a shipping paper may be highlighted, rather than 
printed, in a contrasting color (the provisions of this paragraph apply 
only to the basic description required by Sec. 172.202(a) (1) and (2), 
and (3)), or
    (iii) Must be identified by the entry of an ``X'' placed before the 
proper shipping name in a column captioned ``HM.'' (The ``X'' may be 
replaced by ``RQ,'' if appropriate.)
    (2) The required shipping description on a shipping paper and all 
copies thereof used for transportation purposes, must be legible and 
printed (manually or mechanically) in English.
    (3) Unless it is specifically authorized or required in this 
subchapter, the required shipping description may not contain any code 
or abbreviation.
    (4) A shipping paper may contain additional information concerning 
the material provided the information is not inconsistent with the 
required description. Unless otherwise permitted or required by this 
subpart, additional information must be placed after the basic 
description required by Sec. 172.202(a).
    (b)  [Reserved]
    (c) Continuation page. A shipping paper may consist of more than one 
page, if each page is consecutively numbered and the first page bears a 
notation specifying the total number of pages included in the shipping 
paper. For example, ``Page 1 of 4 pages.''
    (d) Emergency response telephone number. Except as provided in 
Sec. 172.604(c), a shipping paper must contain an emergency response 
telephone number, as prescribed in subpart G of this part.
[Amdt. 172-29A, 41 FR 40677, Sept. 20, 1976, as amended by Amdt. 172-
29B, 41 FR 57067, Dec. 30, 1976; Amdt. 172-58, 45 FR 34697, May 22, 
1980; Amdt. 172-58, 45 FR 74664, Nov. 10, 1980; Amdt. 172-90, 49 FR 
10510, Mar. 20, 1984; Amdt. 172-116, 54 FR 27144, June 27, 1989; Amdt. 
172-123, 55 FR 52589, Dec. 21, 1990; Amdt. 172-147, 61 FR 18932, Apr. 
29, 1996; Amdt. 172-149, 61 FR 27172, May 30, 1996]



Sec. 172.202  Description of hazardous material on shipping papers.

    (a) The shipping description of a hazardous material on the shipping 
paper must include:
    (1) The proper shipping name prescribed for the material in Column 2 
of the Sec. 172.101 Table;
    (2) The hazard class or division prescribed for the material as 
shown in Column 3 of the Sec. 172.101 Table (class names or subsidiary 
hazard class or division number may be entered following the numerical 
hazard class, or following the basic description). The hazard class need 
not be included for the entry ``Combustible liquid, n.o.s.'';
    (3) The identification number prescribed for the material as shown 
in Column 4 of the Sec. 172.101 Table;
    (4) The packing group, in Roman numerals, prescribed for the 
material in Column 5 of the Sec. 172.101 Table, if any. The packing 
group may be preceded by the letters ``PG'' (e.g., ``PG II''); and
    (5) Except for empty packagings (see Sec. 173.29 of this 
subchapter), cylinders for Class 2 (compressed gases) materials, and 
bulk packagings, the total quantity (by net or gross mass, capacity, or 
as otherwise appropriate), including the unit of measurement, of the 
hazardous material covered by the description (e.g., ``800 lbs'', ``55 
gal.'', ``3629 kg'', or ``208 L''). For cylinders for Class 2 
(compressed gases) materials and bulk packagings, some indication of 
total quantity must be shown (e.g., ``10 cylinders'' or ``1 cargo 
tank'').
    (b) Except as provided in this subpart, the basic description 
specified in paragraphs (a) (1), (2), (3) and (4) of this section must 
be shown in sequence with no additional information interspersed. For 
example: ``Gasoline, 3, UN 1203, PG II''.

[[Page 288]]

    (c) The total quantity of the material covered by one description 
must appear before or after, or both before and after, the description 
required and authorized by this subpart. The type of packaging and 
destination marks may be entered in any appropriate manner before or 
after the basic description. Abbreviations may be used to express units 
of measurement and types of packagings.
    (d) Technical and chemical group names may be entered in parentheses 
between the proper shipping name and hazard class or following the basic 
description. An appropriate modifier, such as ``contains'' or 
``containing,'' and/or the percentage of the technical constituent may 
also be used. For example: ``Flammable liquids, n.o.s. (contains Xylene 
and Benzene), 3, UN 1993, II''.
    (e) Except for those materials in the UN Recommendations, the ICAO 
Technical Instructions, or the IMDG Code, a material that is not a 
hazardous material according to this subchapter may not be offered for 
transportation or transported when its description on a shipping paper 
includes a hazard class or an identification number specified in 
Sec. 172.101.
[Amdt. 172-101, 45 FR 74665, Nov. 10, 1980, as amended by Amdt. 172-103, 
51 FR 5970, Feb. 18, 1986; Amdt. 172-123, 55 FR 52589, Dec. 21, 1990; 56 
FR 66252, Dec. 20, 1991; Amdt. 172-127, 57 FR 52938, Nov. 5, 1992; Amdt. 
172-130, 58 FR 51531, Oct. 1, 1993]



Sec. 172.203  Additional description requirements.

    (a) Exemptions. Each shipping paper issued in connection with a 
shipment made under an exemption must bear the notation ``DOT-E'' 
followed by the exemption number assigned and so located that the 
notation is clearly associated with the description to which the 
exemption applies.
    (b) Limited quantities. The description for a material offered for 
transportation as ``limited quantity,'' as authorized by this 
subchapter, must include the words ``Limited Quantity'' or ``Ltd Qty'' 
following the basic description.
    (c) Hazardous substances. (1) Except for Class 7 (radioactive) 
materials described in accordance with paragraph (d) of this section, if 
the proper shipping name for a material that is a hazardous substance 
does not identify the hazardous substance by name, the name of the 
hazardous substance must be entered in parentheses in association with 
the basic description. If the material contains two or more hazardous 
substances, at least two hazardous substances, including the two with 
the lowest reportable quantities (RQs), must be identified. For a 
hazardous waste, the waste code (e.g., D001), if appropriate, may be 
used to identify the hazardous substance.
    (2) The letters ``RQ'' shall be entered on the shipping paper either 
before or after, the basic description required by Sec. 172.202 for each 
hazardous substance (see definition in Sec. 171.8 of this subchapter). 
For example: ``RQ, Allyl alcohol, 6.1, UN 1098, I''; or 
``Environmentally hazardous substance, solid, n.o.s., 9, UN 3077, III, 
RQ (Adipic acid)''.
    (d) Radioactive material. The description for a shipment of a Class 
7 (radioactive) material must include the following additional entries 
as appropriate:
    (1) The words ``RADIOACTIVE MATERIAL'' unless these words are 
contained in the proper shipping name.
    (2) The name of each radionuclide in the Class 7 (radioactive) 
material that is listed in Sec. 173.435 of this subchapter. For mixtures 
of radionuclides, the radionuclides that must be shown must be 
determined in accordance with Sec. 173.433(f) of this subchapter. 
Abbreviations, e.g., ``99 Mo'', are authorized.
    (3) A description of the physical and chemical form of the material, 
if the material is not in special form (generic chemical description is 
acceptable for chemical form).
    (4) The activity contained in each package of the shipment in terms 
of the appropriate SI units (e.g. Becquerel, Terabecquerel, etc.) or in 
terms of the appropriate SI units followed by the customary units (e.g. 
Curies, millicuries, etc.). Alternatively, for domestic transportation, 
the activity in a package of Class 7 (radioactive) materials may be 
described solely in terms

[[Page 289]]

of curies until April 1, 1997. Abbreviations are authorized. Except for 
plutonium-238, plutonium-239, and plutonium-241, the weight in grams or 
kilograms of fissile radionuclides may be inserted instead of activity 
units. For plutonium-238, plutonium-239, and plutonium-241 the weight in 
grams or kilograms of fissile radionuclides may be inserted in addition 
to the activity units. For the shipment of a package containing a 
highway route controlled quantity of Class 7 (radioactive) materials 
(see Sec. 173.403 of this subchapter) the words ``Highway route 
controlled quantity'' must be entered in association with the basic 
description.
    (5) The category of label applied to each package in the shipment. 
For example: ``RADIOACTIVE WHITE-I.''
    (6) The transport index assigned to each package in the shipment 
bearing RADIOACTIVE YELLOW-II or RADIOACTIVE YELLOW-III labels.
    (7) For a shipment of fissile Class 7 (radioactive) materials:
    (i) The words ``Fissile Excepted'' if the package is excepted 
pursuant to Sec. 173.453 of this subchapter;
    (ii) For a fissile material, controlled shipment, the additional 
notation: ``Warning--Fissile material, controlled shipment. Do not load 
more than * * * packages per vehicle.'' (Asterisks to be replaced by 
appropriate number.) ``In loading and storage areas, keep at least 6 
meters (20 feet) from other packages bearing radioactive labels''; and
    (iii) If a fissile material, controlled shipment is to be 
transported by water, the supplementary notation must also include the 
following statement: ``For shipment by water, only one fissile material, 
controlled shipment is permitted in each hold.''
    (8) For a package approved by the U.S. Department of Energy (DOE) or 
U.S. Nuclear Regulatory Commission (USNRC), a notation of the package 
identification marking as prescribed in the applicable DOE or USNRC 
approval. (See Sec. 173.471 of the subchapter.)
    (9) For an export shipment or a shipment in a foreign made package, 
a notation of the package identification marking as prescribed in the 
applicable International Atomic Energy Agency (IAEA) Certificate of 
Competent Authority which has been issued for the package. (See 
Sec. 173.473 of the subchapter.)
    (10) For a shipment required by this subchapter to be consigned as 
exclusive use:
    (i) An indication that the shipment is consigned as exclusive use; 
or
    (ii) If all the descriptions on the shipping paper are consigned as 
exclusive use, then the statement ``Exclusive Use Shipment'' may be 
entered only once on the shipping paper in a clearly visible location.
    (11) For a shipment of low specific activity material or surface 
contaminated objects, the appropriate group notation of LSA-I, LSA-II, 
LSA-III, SCO-I, or SCO-II.
    (e) Empty packagings. (1) The description on the shipping paper for 
a packaging containing the residue of a hazardous material may include 
the words ``RESIDUE: Last Contained * * *'' in association with the 
basic description of the hazardous material last contained in the 
packaging.
    (2) The description on the shipping paper for a tank car containing 
the residue of a hazardous material must include the phrase, ``RESIDUE: 
LAST CONTAINED * * *'' before the basic description.
    (f) Transportation by air. When a package containing a hazardous 
material is offered for transportation by air and this subchapter 
prohibits its transportation aboard passenger-carrying aircraft, the 
words ``Cargo aircraft only'' must be entered after the basic 
description.
    (g) Transportation by rail. (1) A shipping paper prepared by a rail 
carrier for a rail car, freight container, transport vehicle or portable 
tank that contains hazardous materials must include the reporting mark 
and number when displayed on the rail car, freight container, transport 
vehicle or portable tank.
    (2) The shipping paper for each DOT-113 tank car containing a 
Division 2.1 material or its residue must contain an appropriate 
notation, such as ``DOT 113'', and the statement ``Do not hump or cut 
off car while in motion.''
    (3) When shipments of elevated temperature materials are transported 
under the exception permitted in Sec. 173.247(h)(3) of this subchapter, 
the

[[Page 290]]

shipping paper must contain an appropriate notation, such as ``Maximum 
operating speed 15 mph.''.
    (h) Transportation by highway. Following the basic description for a 
hazardous material in a Specification MC 330 or MC 331 cargo tank, there 
must be entered for--
    (1) Anhydrous ammonia. (i) The words ``0.2 PERCENT WATER'' to 
indicate the suitability for shipping anhydrous ammonia in a cargo tank 
made of quenched and tempered steel as authorized by Sec. 173.315(a), 
Note 14 of this subchapter, or
    (ii) The words ``NOT FOR Q and T TANKS'' when the anhydrous ammonia 
does not contain 0.2 percent or more water by weight.
    (2) Liquefied petroleum gas. (i) The word ``NONCORROSIVE'' or 
``NONCOR'' to indicate the suitability for shipping ``Noncorrosive'' 
liquefied petroleum gas in a cargo tank made of quenched and tempered 
steel as authorized by Sec. 173.315(a), Note 15 of this subchapter, or
    (ii) The words ``NOT FOR Q and T TANKS'' for grades of liquefied 
petroleum gas other than ``Noncorrosive''.
    (i) Transportation by water. Each shipment by water must have the 
following additional shipping paper entries:
    (1) Identification of the type of packagings such as barrels, drums, 
cylinders, and boxes.
    (2) The number of each type of package including those in a freight 
container or on a pallet.
    (3) The gross mass of each type of package or the individual gross 
mass of each package.
    (4) The name of the shipper.
    (j)[Reserved]
    (k) Technical names for ``n.o.s.'' and other generic descriptions. 
Unless otherwise excepted, if a material is described on a shipping 
paper by one of the proper shipping names listed in paragraph (k)(3) of 
this section, the technical name of the hazardous material must be 
entered in parentheses in association with the basic description. For 
example ``Corrosive liquid, n.o.s., (Caprylyl chloride), 8, UN 1760, 
II'', or ``Corrosive liquid, n.o.s., 8, UN 1760, II (contains Caprylyl 
chloride)''. The word ``contains'' may be used in association with the 
technical name, if appropriate. For organic peroxides which may qualify 
for more than one generic listing depending on concentration, the 
technical name must include the actual concentration being shipped or 
the concentration range for the appropriate generic listing. For 
example, ``Organic peroxide type B, solid, 5.2, UN 3102 (dibenzoyl 
peroxide, 52-100%)'' or ``Organic peroxide type E, solid, 5.2, UN 3108 
(dibenzoyl peroxide, paste, <52%)''.
    (1) In addition to the n.o.s. descriptions listed herein, the 
requirements of this section apply to all shipping descriptions for 
poisonous materials which are subject to the requirements of paragraph 
(m) of this section, and for which the proper shipping name does not 
specifically identify the poisonous constituent by technical name. For 
example, ``Motor fuel antiknock mixtures (Tetraethyl lead), 6.1 , UN 
1649, I'', or ``Motor fuel antiknock mixtures, 6.1. UN 1649, I 
(Tetraethyl lead)''.
    (2) If a hazardous material is a mixture or solution of two or more 
hazardous materials, the technical names of at least two components most 
predominately contributing to the hazards of the mixture or solution 
must be entered on the shipping paper as required by paragraph (k) of 
this section. For example, ``Flammable liquid, corrosive, n.o.s., 3, UN 
2924, II (contains Methanol, Potassium hydroxide)''.
    (3) Proper shipping names for which the provisions of this paragraph 
apply are as follows:

Alcoholates solution, n.o.s., in alcohol
Alcohols, toxic, n.o.s.
Aldehydes, toxic, n.o.s.
Alkali metal alcoholates, self-heating, corrosive, n.o.s.
Alkaline earth metal alcoholates, n.o.s.
Amines, flammable, corrosive, n.o.s. or Polyamines, flammable, 
          corrosive, n.o.s.
Amines, liquid, corrosive, flammable, n.o.s. or Polyamines, liquid, 
          corrosive, flammable, n.o.s.
Amines, liquid, corrosive, n.o.s. or Polyamines, liquid, corrosive, 
          n.o.s.
Amines, solid, corrosive, n.o.s. or Polyamines, solid, corrosive, n.o.s.
Articles, explosive, n.o.s.
Caustic alkali liquids, n.o.s.
Charges, propelling
Chloroformates, toxic, corrosive, n.o.s.
Combustible liquid, n.o.s.
Components, explosive train, n.o.s.
Compounds, cleaning liquid, corrosive, flammable, toxic

[[Page 291]]

Compounds, tree or weed killing, liquid, flammable, corrosive, toxic
Compressed gas, toxic, corrosive, n.o.s.
Compressed gas, toxic, flammable, corrosive, n.o.s.
Compressed gas, toxic, oxidizing, corrosive, n.o.s.
Compressed gas, toxic, oxidizing, n.o.s.
Compressed or Liquefied gases, flammable, n.o.s.
Compressed or Liquefied gases, n.o.s.
Compressed or Liquefied gases, oxidizing, n.o.s.
Compressed or Liquefied gases, toxic, flammable, n.o.s.
Compressed or Liquefied gases, toxic, n.o.s.
Contrivances, water-activated
Corrosive, liquid, acidic, inorganic or organic, n.o.s.
Corrosive, liquid, basic, inorganic or organic, n.o.s.
Corrosive liquids, flammable, n.o.s.
Corrosive liquids, n.o.s.
Corrosive liquids, oxidizing, n.o.s.
Corrosive liquids, toxic, n.o.s.
Corrosive liquids, water-reactive, n.o.s.
Corrosive, solid, acidic, inorganic or organic, n.o.s.
Corrosive, solid, basic, inorganic or organic, n.o.s.
Corrosive solids, flammable, n.o.s.
Corrosive solids, n.o.s.
Corrosive solids, oxidizing, n.o.s.
Corrosive solids, self-heating, n.o.s.
Corrosive solids, toxic, n.o.s.
Corrosive solids, water-reactive, n.o.s.
Disinfectants, liquid, corrosive, n.o.s.
Disinfectants, liquid, toxic, n.o.s.
Disinfectants, solids, toxic, n.o.s.
Dispersant gas, n.o.s.
Dyes, liquid, corrosive, n.o.s. or Dye intermediates, liquid, corrosive, 
          n.o.s.
Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s.
Dyes, solid, corrosive, n.o.s. or Dye intermediates, solid, corrosive, 
          n.o.s.
Dyes, solid, toxic, n.o.s. or Dye intermediates, solid, toxic, n.o.s.
Environmentally hazardous substances, liquid or solid, n.o.s.
Flammable gases, solid, corrosive, n.o.s.
Flammable liquids, corrosive, n.o.s.
Flammable liquids, n.o.s.
Flammable liquids, toxic, corrosive, n.o.s.
Flammable liquids, toxic, n.o.s.
Flammable solids, corrosive, organic or inorganic, n.o.s.
Flammable solids, organic, molten, n.o.s.
Flammable solids, organic or inorganic, n.o.s.
Flammable solids, toxic, organic or inorganic, n.o.s.
Gas, refrigerated liquid, flammable, n.o.s.
Gas, refrigerated liquid, oxidizing, n.o.s.
Halogenated irritating liquids, n.o.s.
Hazardous waste, liquid or solid, n.o.s.
Hydrocarbon gases, compressed, n.o.s.
Hydrocarbon gases, liquefied, n.o.s.
Hydrocarbon gases mixtures, compressed, n.o.s.
Hydrocarbon gases mixtures, liquefied, n.o.s.
Hydrocarbons, liquid, n.o.s.
Infectious substances, affecting animals
Infectious substances, affecting humans
Insecticide gases, n.o.s.
Insecticide gases, toxic, n.o.s.
Isocyanates, flammable, toxic, n.o.s. or Isocyanates solutions, 
          flammable, toxic, n.o.s.
Isocyanates, toxic, flammable, n.o.s. or Isocyanates solutions, toxic, 
          flammable, n.o.s.
Liquefied gas, toxic, corrosive, n.o.s.
Liquefied gas, toxic, flammable, corrosive, n.o.s.
Liquefied gas, toxic, oxidizing, corrosive, n.o.s.
Liquefied gas, toxic, oxidizing, n.o.s.
Medicines, liquid, flammable, toxic, n.o.s.
Medicines, liquid, toxic, n.o.s.
Medicine, solid, toxic, n.o.s.
Metal powder, self-heating, n.o.s.
Metal salts of organic compounds, flammable, n.o.s.
Metallic substance, water-reactive, n.o.s.
Metallic substance, water-reactive, self-heating, n.o.s.
Nitriles, flammable, toxic, n.o.s.
Nitriles, toxic, flammable, n.o.s.
Nitriles, toxic, n.o.s.
Organic peroxide type B, liquid
Organic peroxide type B, liquid, temperature controlled
Organic peroxide type B, solid
Organic peroxide type B, solid, temperature controlled
Organic peroxide type C, liquid
Organic peroxide type C, liquid, temperature controlled
Organic peroxide type C, solid
Organic peroxide type C, solid, temperature controlled
Organic peroxide type D, liquid
Organic peroxide type D, liquid, temperature controlled
Organic peroxide type D, solid
Organic peroxide type D, solid, temperature controlled
Organic peroxide type E, liquid
Organic peroxide type E, liquid, temperature controlled
Organic peroxide type E, solid
Organic peroxide type E, solid, temperature controlled
Organic peroxide type F, liquid
Organic peroxide type F, liquid, temperature controlled
Organic peroxide type F, solid
Organic peroxide type F, solid, temperature controlled
Organometallic compound, toxic, n.o.s.
Organometallic compound dispersion, water-reactive, flammable, n.o.s.

[[Page 292]]

Organometallic compound solution, water-reactive, flammable, n.o.s.
Organometallic compound, water reactive, flammable, n.o.s.
Other regulated substances, liquid, n.o.s.
Other regulated substances, solid, n.o.s.
Oxidizing liquid, corrosive, n.o.s.
Oxidizing liquid, n.o.s.
Oxidizing liquid, toxic, n.o.s.
Oxidizing solid, corrosive, n.o.s.
Oxidizing solid, flammable, n.o.s.
Oxidizing solid, n.o.s.
Oxidizing solid, self-heating, n.o.s.
Oxidizing solid, toxic, n.o.s.
Oxidizing solid, water-reactive, n.o.s.
Pesticides, liquid, flammable, toxic, n.o.s.
Pesticides, liquid, toxic, flammable, n.o.s.
Pesticides, liquid, toxic, n.o.s.
Pesticides, solid, toxic, n.o.s.
Propellant, liquid
Propellant, solid
Pyrophoric liquids, organic or inorganic, n.o.s.
Pyrophoric metals, n.o.s. or Pyrophoric alloys, n.o.s.
Pyrophoric organometallic compound, n.o.s.
Pyrophoric solids, organic or inorganic, n.o.s.
Refrigerant gases, n.o.s.
Samples, explosive (other than initiating explosives)
Self-heating liquid, corrosive, inorganic, n.o.s.
Self-heating liquid, corrosive, organic, n.o.s.
Self-heating liquid, inorganic, n.o.s.
Self-heating liquid, organic, n.o.s.
Self-heating liquid, toxic, inorganic, n.o.s.
Self-heating liquid, toxic, organic, n.o.s.
Self-heating solid, corrosive, inorganic, n.o.s.
Self-heating solid, corrosive, organic, n.o.s.
Self-heating solid, organic or inorganic, n.o.s.
Self-heating solid, oxidizing, n.o.s.
Self-heating solid, toxic, organic or inorganic, n.o.s.
Self-reactive liquid type B
Self-reactive liquid type B, temperature controlled
Self-reactive liquid type C
Self-reactive liquid type C, temperature controlled
Self-reactive liquid type D
Self-reactive liquid type D, temperature controlled
Self-reactive liquid type E
Self-reactive liquid type E, temperature controlled
Self-reactive liquid type F
Self-reactive liquid type F, temperature controlled
Self-reactive solid type B
Self-reactive solid type B, temperature controlled
Self-reactive solid type C
Self-reactive solid type C, temperature controlled
Self-reactive solid type D
Self-reactive solid type D, temperature controlled
Self-reactive solid type E
Self-reactive solid type E, temperature controlled
Self-reactive solid type F
Self-reactive solid type F, temperature controlled
Solids containing corrosive liquid, n.o.s.
Solids containing flammable liquid, n.o.s.
Solids containing toxic liquid, n.o.s.
Substances, explosive, n.o.s.
Substances, explosive, very insensitive (substances, EVI), n.o.s.
Tear gas substances, liquid or solid, n.o.s.
Toxic liquids, corrosive, organic or inorganic, n.o.s.
Toxic liquids, flammable, organic or inorganic, n.o.s.
Toxic liquids, organic or inorganic, n.o.s.
Toxic liquids, oxidizing, n.o.s.
Toxic liquids, water-reactive, n.o.s.
Toxic solids, corrosive, organic or inorganic, n.o.s.
Toxic solids, flammable, organic or inorganic, n.o.s.
Toxic solids, organic or inorganic, n.o.s.
Toxic solids, oxidizing, n.o.s.
Toxic solids, self-heating, n.o.s.
Toxic solids, water-reactive, n.o.s.
Water-reactive, liquid, corrosive, n.o.s.
Water-reactive, liquid, n.o.s.
Water-reactive, liquid, toxic, n.o.s.
Water-reactive, solid, corrosive, n.o.s.
Water-reactive, solid, flammable, n.o.s.
Water-reactive, solid, n.o.s.
Water-reactive, solid, oxidizing, n.o.s.
Water-reactive, solid, self-heating, n.o.s.
Water-reactive, solid, toxic, n.o.s.
    (4) The provisions of this paragraph do not apply--
    (i) To a material that is a hazardous waste and described using the 
proper shipping name ``Hazardous waste, liquid or solid, n.o.s.'', 
classed as a miscellaneous Class 9, provided the EPA hazardous waste 
number is included on the shipping paper in association with the basic 
description, or provided the material is described in accordance with 
the provisions of Sec. 172.203(c) of this part.
    (ii) To a material for which the hazard class is to be determined by 
testing under the criteria in Sec. 172.101(c)(11).
    (iii) If the n.o.s. description for the material (other than a 
mixture of hazardous materials of different classes meeting the 
definitions of more than one hazard class) contains the name of the 
chemical element or group which is primarily responsible for the 
material

[[Page 293]]

being included in the hazard class indicated.
    (iv) If the n.o.s. description for the material (which is a mixture 
of hazardous materials of different classes meeting the definition of 
more than one hazard class) contains the name of the chemical element or 
group responsible for the material meeting the definition of one of 
these classes. In such cases, only the technical name of the component 
that is not appropriately identified in the n.o.s. description shall be 
entered in parentheses.
    (l) Marine pollutants. (1) If the proper shipping name for a 
material which is a marine pollutant does not identify by name the 
component which makes the material a marine pollutant, the name of that 
component must appear in parentheses in association with the basic 
description. Where two or more components which make a material a marine 
pollutant are present, the names of at least two of the components most 
predominantly contributing to the marine pollutant designation must 
appear in parentheses in association with the basic description.
    (2) The words ``Marine Pollutant'' shall be entered in association 
with the basic description for a material which is a marine pollutant.
    (3) Except for transportation by vessel, marine pollutants subject 
to the provisions of 49 CFR 130.11 are excepted from the requirements of 
paragraph (l) of this section if a phrase indicating the material is an 
oil is placed in association with the basic description.
    (m) Poisonous materials. Notwithstanding the hazard class to which a 
material is assigned--
    (1) If a liquid or solid material in a package meets the definition 
of a Division 6.1, Packing Group I or II, according to this subchapter, 
and the fact that it is a poison is not disclosed in the shipping name 
or class entry, the word ``Poison or Toxic'' shall be entered on the 
shipping paper in association with the shipping description.
    (2) If the technical name of the compound or principal constituent 
that causes a material to meet the definition of Division 6.1, Packing 
Group I or II (as defined in Sec. 173.132(a) of this subchapter), or 
Division 2.3 (as defined in Sec. 173.115(c) of this subchapter), is not 
included in the proper shipping name for the material, the technical 
name shall be entered on the shipping paper in the manner prescribed in 
paragraph (k) of this section.
    (3) For materials which are poisonous by inhalation (see Sec. 171.8 
of this subchapter), the words ``Poison-Inhalation Hazard''or ``Toxic-
Inhalation Hazard'' and the words ``Zone A'', ``Zone B'', ``Zone C'', or 
``Zone D'', for gases or ``Zone A'' or ``Zone B'' for liquids, as 
appropriate, shall be entered on the shipping paper immediately 
following the shipping description. The word ``Poison''or ``Toxic'' need 
not be repeated if it otherwise appears in the shipping description.
    (n) Elevated temperature materials. Except for molten sulfur or 
molten aluminum, if a liquid material in a package meets the definition 
of an elevated temperature material in Sec. 171.8 of this subchapter, 
and the fact that it is an elevated temperature material is not 
disclosed in the shipping name, the word ``HOT'' must immediately 
precede the proper shipping name of the material on the shipping paper.
    (o) Organic peroxides and self-reactive materials. The description 
on a shipping paper for a Division 4.1 (self-reactive) material or a 
Division 5.2 (organic peroxide) material must include the following 
additional information, as appropriate:
    (1) If notification or competent authority approval is required, the 
shipping paper must contain a statement of approval of the 
classification and conditions of transport.
    (2) For Division 4.1 (self-reactive) and Division 5.2 (organic 
peroxide) materials that require temperature control during transport, 
the control and emergency temperature must be included on the shipping 
paper.
    (3) The word ``SAMPLE'' must be included in association with the 
basic description when a sample of a Division 4.1 (self-reactive) 
material (see Sec. 173.224(c)(4) of this subchapter) or Division 5.2 
(organic peroxide) material (see Sec. 173.225(c)(4) of this subchapter) 
is offered for transportation or transported.
[Amdt. 172-29A, 41 FR 40677, Sept. 20, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 172.203, see the List of

[[Page 294]]

CFR Sections Affected appearing in the Finding Aids section of this 
volume.



Sec. 172.204  Shipper's certification.

    (a) General. Except as provided in paragraphs (b) and (c) of this 
section, each person who offers a hazardous material for transportation 
shall certify that the material is offered for transportation in 
accordance with this subchapter by printing (manually or mechanically) 
on the shipping paper containing the required shipping description the 
certification contained in paragraph (a)(1) of this section or the 
certification (declaration) containing the language contained in 
paragraph (a)(2) of this section.
    (1) ``This is to certify that the above-named materials are properly 
classified, described, packaged, marked and labeled, and are in proper 
condition for transportation according to the applicable regulations of 
the Department of Transportation.''

    Note: In line one of the certification the words ``herein-named'' 
may be substituted for the words ``above-named''.

    (2) ``I hereby declare that the contents of this consignment are 
fully and accurately described above by the proper shipping name, and 
are classified, packaged, marked and labelled/placarded, and are in all 
respects in proper condition for transport according to applicable 
international and national governmental regulations.''
    (b) Exceptions. (1) Except for a hazardous waste, no certification 
is required for a hazardous material offered for transportation by motor 
vehicle and transported:
    (i) In a cargo tank supplied by the carrier, or
    (ii) By the shipper as a private carrier except for a hazardous 
material that is to be reshipped or transferred from one carrier to 
another.
    (2) No certification is required for the return of an empty tank car 
which previously contained a hazardous material and which has not been 
cleaned or purged.
    (c) Transportation by air--(1) General. Certification containing the 
following language may be used in place of the certification required by 
paragraph (a) of this section:

    I hereby certify that the contents of this consignment are fully and 
accurately described above by proper shipping name and are classified, 
packed, marked and labeled, and in proper condition for carriage by air 
according to applicable national governmental regulations.

    (2) Certificate in duplicate. Each person who offers a hazardous 
material to an aircraft operator for transportation by air shall provide 
two copies of the certification required in this section. (See 
Sec. 175.30 of this subchapter.)
    (3) Passenger and cargo aircraft. Each person who offers for 
transportation by air a hazardous material authorized for air 
transportation shall add to the certification required in this section 
the following statement:

    This shipment is within the limitations prescribed for passenger 
aircraft/cargo aircraft only (delete nonapplicable).

    (4) Radioactive material. Each person who offers any radioactive 
material for transportation aboard a passenger-carrying aircraft shall 
sign (mechanically or manually) a printed certificate stating that the 
shipment contains radioactive material intended for use in, or incident 
to, research, or medical diagnosis or treatment.
    (d) Signature. The certifications required by paragraph (a) or (c) 
of this section:
    (1) Must be legibly signed by a principal, officer, partner, or 
employee of the shipper or his agent; and
    (2) May be legibly signed manually, by typewriter, or by other 
mechanical means.
[Amdt. 172-29A, 41 FR 40677, Sept. 20, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 172.204, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 172.205  Hazardous waste manifest.

    (a) No person may offer, transport, transfer, or deliver a hazardous 
waste (waste) unless an EPA Form 8700-22 and 8700-22A (when necessary) 
hazardous waste manifest (manifest) is prepared in accordance with 40 
CFR 262.20 and is signed, carried, and given as required of that person 
by this section.
    (b) The shipper (generator) shall prepare the manifest in accordance 
with 40 CFR part 262.

[[Page 295]]

    (c) The original copy of the manifest must be dated by, and bear the 
handwritten signature of, the person representing:
    (1) The shipper (generator) of the waste at the time it is offered 
for transportation, and
    (2) The initial carrier accepting the waste for transportation.
    (d) A copy of the manifest must be dated by, and bear the 
handwritten signature of the person representing:
    (1) Each subsequent carrier accepting the waste for transportation, 
at the time of acceptance, and
    (2) The designated facility receiving the waste, upon receipt.
    (e) A copy of the manifest bearing all required dates and signatures 
must be:
    (1) Given to a person representing each carrier accepting the waste 
for transportation,
    (2) Carried during transportation in the same manner as required by 
this subchapter for shipping papers,
    (3) Given to a person representing the designated facility receiving 
the waste,
    (4) Returned to the shipper (generator) by the carrier that 
transported the waste from the United States to a foreign destination 
with a notation of the date of departure from the United States, and
    (5) Retained by the shipper (generator) and by the initial and each 
subsequent carrier for three years from the date the waste was accepted 
by the initial carrier. Each retained copy must bear all required 
signatures and dates up to and including those entered by the next 
person who received the waste.
    (f) Transportation by rail. Notwithstanding the requirements of 
paragraphs (d) and (e) of this section, the following requirements 
apply:
    (1) When accepting hazardous waste from a non-rail transporter, the 
initial rail transporter must:
    (i) Sign and date the manifest acknowledging acceptance of the 
hazardous waste;
    (ii) Return a signed copy of the manifest to the non-rail 
transporter;
    (iii) Forward at least three copies of the manifest to:
    (A) The next non-rail transporter, if any;
    (B) The designated facility, if the shipment is delivered to that 
facility by rail; or
    (C) The last rail transporter designated to handle the waste in the 
United States; and
    (iv) Retain one copy of the manifest and rail shipping paper in 
accordance with 40 CFR 263.22.
    (2) Rail transporters must ensure that a shipping paper containing 
all the information required on the manifest (excluding the EPA 
identification numbers, generator certification and signatures) and, for 
exports, an EPA Acknowledgment of Consent accompanies the hazardous 
waste at all times. Intermediate rail transporters are not required to 
sign either the manifest or shipping paper.
    (3) When delivering hazardous waste to the designated facility, a 
rail transporter must:
    (i) Obtain the date of delivery and handwritten signature of the 
owner or operator of the designated facility on the manifest or the 
shipping paper (if the manifest has not been received by the facility); 
and
    (ii) Retain a copy of the manifest or signed shipping paper in 
accordance with 40 CFR 263.22.
    (4) When delivering hazardous waste to a non-rail transporter, a 
rail transporter must:
    (i) Obtain the date of delivery and the handwritten signature of the 
next non-rail transporter on the manifest; and
    (ii) Retain a copy of the manifest in accordance with 40 CFR 263.22.
    (5) Before accepting hazardous waste from a rail transporter, a non-
rail transporter must sign and date the manifest and provide a copy to 
the rail transporter.
    (g) The person delivering a hazardous waste to an initial rail 
carrier shall send a copy of the manifest, dated and signed by a 
representative of the rail carrier, to the person representing the 
designated facility.
    (h) A hazardous waste manifest required by 40 CFR part 262, 
containing all of the information required by this

[[Page 296]]

subpart, may be used as the shipping paper required by this subpart.
[Amdt. 172-58, 45 FR 34698, May 22, 1980, as amended by Amdt. 172-90, 49 
FR 10510, Mar. 20, 1984; 49 FR 11184, Mar. 26, 1984; Amdt. 172-248, 61 
FR 28675, June 5, 1996]



                           Subpart D--Marking



Sec. 172.300  Applicability.

    (a) Each person who offers a hazardous material for transportation 
shall mark each package, freight container, and transport vehicle 
containing the hazardous material in the manner required by this 
subpart.
    (b) When assigned the function by this subpart, each carrier that 
transports a hazardous material shall mark each package, freight 
container, and transport vehicle containing the hazardous material in 
the manner required by this subpart.
[Amdt. 172-101, 45 FR 74666, Nov. 10, 1980]



Sec. 172.301  General marking requirements for non-bulk packagings.

    (a) Proper shipping name and identification number. (1) Except as 
otherwise provided by this subchapter, each person who offers for 
transportation a hazardous material in a non-bulk packaging shall mark 
the package with the proper shipping name and identification number 
(preceded by ``UN'' or ``NA'', as appropriate) for the material as shown 
in the Sec. 172.101 table.
    (2) The proper shipping name for a hazardous waste (as defined in 
Sec. 171.8 of this subchapter) is not required to include the word 
``waste'' if the package bears the EPA marking prescribed by 40 CFR 
262.32.
    (3) Large quantities of hazardous materials in non-bulk packages. A 
transport vehicle or freight container that is loaded at one loading 
facility with 4,000 kg (8,820 pounds) or more aggregate gross weight of 
hazardous materials in non-bulk packagings, when all the hazardous 
materials loaded in the transport vehicle or freight container have the 
same proper shipping name and identification number, must be marked with 
the identification number specified for the hazardous material in the 
Sec. 172.101 Table on each side and each end as specified in 
Secs. 172.332 or 172.336. The requirement in this paragraph (a)(3) does 
not apply to:
    (i) Class 1, Class 7, or ORM-D materials; or
    (ii) Limited quantities or small quantities of hazardous materials 
(see Sec. 173.4 of this subchapter).
    (b) Technica1 names. In addition to the marking required by 
paragraph (a) of this section, each non-bulk packaging containing 
hazardous materials subject to the provisions of Sec. 172.203(k) of this 
part shall be marked with the technical name in parentheses in 
association with the proper shipping name in accordance with the 
requirements and exceptions specified for display of technical 
descriptions on shipping papers in Sec. 172.203(k) of this part.
    (c) Exemption packagings. The outside of each package authorized by 
an exemption shall be plainly and durably marked ``DOT-E'' followed by 
the exemption number assigned.
    (d) Consignee's or consignor's name and address. Each person who 
offers for transportation a hazardous material in a non-bulk package 
shall mark that package with the name and address of the consignor or 
consignee except when the package is--
    (1) Transported by highway only and will not be transferred from one 
motor carrier to another; or
    (2) Part of a carload lot, truckload lot or freight container load, 
and the entire contents of the rail car, truck or freight container are 
shipped from one consignor to one consignee.
    (e) Previously marked packagings. A package which has been 
previously marked as required for the material it contains and on which 
the marking remains legible, need not be remarked. (For empty 
packagings, see Sec. 173.29 of this subchapter.)
    (f) Marking exceptions. (1) Identification numbers are not required 
on packages which contain only limited quantities, as defined in 
Sec. 171.8 of this subchapter, or ORM-D materials.
    (2) The marking of technical names on non-bulk packagings filled for 
shipment prior to December 31, 1990 is not required until December 31, 
1991.
[Amdt. 172-123, 55 FR 52590, Dec. 21, 1990, as amended by Amdt. 172-151, 
62 FR 1227, Jan. 8, 1997; 62 FR 39404, July 22, 1997]

[[Page 297]]


    Effective Date Note: By Amdt 172-151, 62 FR 1227, Jan 8, 1997, in 
Sec. 172.301, paragraph (a)(1) was revised, paragraphs (f)(1) and (f)(2) 
were removed, and a new paragraph (a)(3) was added, effective Oct. 1, 
1997. At 62 FR 39398 and 39404, July 22, 1997, the effective date was 
delayed until Oct. 1, 1998 and new paragraph (a)(3) was revised 
effective Oct. 1, 1998. For the convenience of the user the revised text 
of paragraph (a)(1) is set forth as follows:

Sec. 172.301  General marking requirements for non-bulk packagings.

    (a) * * *
    (1) Except as otherwise provided by this subchapter, each person who 
offers for transportation a hazardous material in a non-bulk packaging 
shall mark the package with the proper shipping name and identification 
number (preceded by ``UN'' or ``NA'', as appropriate) for the material 
as shown in the Sec. 172.101 Table. Identification numbers are not 
required on packages which contain only limited quantities, as defined 
in Sec. 171.8 of this subchapter, or ORM-D materials.

                                * * * * *



Sec. 172.302  General marking requirements for bulk packagings.

    (a) Identification numbers. Except as otherwise provided in this 
subpart, no person may offer for transportation or transport a hazardous 
material in a bulk packaging unless the packaging is marked as required 
by Sec. 172.332 with the identification number specified for the 
material in the Sec. 172.101 Table--
    (1) On each side and each end, if the packaging has a capacity of 
3,785 L (1,000 gallons) or more;
    (2) On two opposing sides, if the packaging has a capacity of less 
than 3,785 L (1,000 gallons); or
    (3) For cylinders permanently installed on a tube trailer motor 
vehicle, on each side and each end of the motor vehicle.
    (b) Size of markings. Except as otherwise provided, markings 
required by this subpart on bulk packagings must--
    (1) Have a width of at least 6.0 mm (0.24 inch) and a height of at 
least 100 mm (3.9 inches) for rail cars;
    (2) Have a width of at least 4.0 mm (0.16 inch) and a height of at 
least 25 mm (one inch) for portable tanks with capacities of less than 
3,785 L (1,000 gallons) and intermediate bulk containers; and
    (3) Have a width of at least 6.0 mm (0.24 inch) and a height of at 
least 50 mm (2.0 inches) for cargo tanks and other bulk packagings.
    (c) Exemption packagings. The outside of each bulk package used 
under the terms of an exemption shall be plainly and durably marked 
``DOT-E'' followed by the exemption number assigned.
    (d) Each bulk packaging marked with a proper shipping name, common 
name or identification number as required by this subpart must remain 
marked when it is emptied unless it is--
    (1) Sufficiently cleaned of residue and purged of vapors to remove 
any potential hazard; or
    (2) Refilled, with a material requiring different markings or no 
markings, to such an extent that any residue remaining in the packaging 
is no longer hazardous.
    (e) Additional requirements for marking portable tanks, cargo tanks, 
tank cars, multi-unit tank car tanks, and other bulk packagings are 
prescribed in Secs. 172.326, 172.328, 172.330, and 172.331, 
respectively, of this subpart.
    (f) A bulk packaging marked prior to October 1, 1991, in conformance 
to the regulations of this subchapter in effect on September 30, 1991, 
need not be remarked if the key words of the proper shipping name are 
identical to those currently specified in the Sec. 172.101 Table. For 
example, a tank car marked ``ANHYDROUS AMMONIA'' need not be remarked 
``ANHYDROUS AMMONIA, LIQUEFIED''.
    (g) A rail car, freight container, truck body or trailer in which 
the lading has been fumigated with any hazardous material, or is 
undergoing fumigation, must be marked as specified in Sec. 173.9 of this 
subchapter.
[Amdt. 172-123, 55 FR 52591, Dec. 21, 1990, as amended at 56 FR 66254, 
Dec. 20, 1991; Amdt. 172-150, 61 FR 50624, Sept. 26, 1996; Amdt. 172-
151, 62 FR 1228, Jan. 8, 1997; 62 FR 39398, July 22, 1997]

    Effective Date Note: By Amdt. 172-151, 62 FR 1228, Jan. 8, 1997, 
Sec. 172.302(g) was added effective Oct. 1, 1997. At 62 FR 39398, July 
22, 1997, the effective date was delayed until Oct. 1, 1998.



Sec. 172.303  Prohibited marking.

    (a) No person may offer for transportation or transport a package 
which is

[[Page 298]]

marked with the proper shipping name or identification number of a 
hazardous material unless the package contains the identified hazardous 
material or its residue.
    (b) This section does not apply to--
    (1) Transportation of a package in a transport vehicle or freight 
container if the package is not visible during transportation and is 
loaded by the shipper and unloaded by the shipper or consignee.
    (2) Markings on a package which are securely covered in 
transportation.
    (3) The marking of a shipping name on a package when the name 
describes a material not regulated under this subchapter.
[Amdt. 172-123, 55 FR 52591, Dec. 21, 1990, as amended at 56 FR 66254, 
Dec. 20, 1991]



Sec. 172.304  Marking requirements.

    (a) The marking required in this subpart--(1) Must be durable, in 
English and printed on or affixed to the surface of a package or on a 
label, tag, or sign.
    (2) Must be displayed on a background of sharply contrasting color;
    (3) Must be unobscured by labels or attachments; and
    (4) Must be located away from any other marking (such as 
advertising) that could substantially reduce its effectiveness.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-29B, 
41 FR 57067, Dec. 30, 1976]



Sec. 172.306  [Reserved]



Sec. 172.308  Authorized abbreviations.

    (a) Abbreviations may not be used in a proper shipping name marking 
except as authorized in this section.
    (b) The abbreviation ``ORM'' may be used in place of the words 
``Other Regulated Material.''
    (c) Abbreviations which appear as authorized descriptions in Column 
2 of the Sec. 172.101 Table (e.g., ``TNT'' and ``PCB'') are authorized.
[Amdt. 172-123, 55 FR 52591, Dec. 21, 1990, as amended by Amdt. 172-145, 
60 FR 49110, Sept. 21, 1995]



Sec. 172.310  Class 7 (radioactive) materials.

    In addition to any other markings required by this subpart, each 
package containing Class 7 (radioactive) materials must be marked as 
follows:
    (a) Each package with a gross mass greater than 50 kilograms (110 
pounds) must have the its gross mass marked on the outside of the 
package.
    (b) Each packaging must be marked on the outside of the package, in 
letters at least 13 mm (0.5 inch) high, with the words ``TYPE A'' or 
``TYPE B'' as appropriate. A packaging which does not conform to Type A 
or Type B requirements may not be so marked.
    (c) Each Type B, Type B(U) or Type B(M) packaging must be marked on 
the outside of the package with a radiation symbol that conforms to the 
requirements of Appendix B to Part 172.
    (d) Each package destined for export shipment must also be marked 
``USA'' in conjunction with the specification marking, or other package 
certificate identification. (See Secs. 173.471, 173.472, and 173.473 of 
this subchapter).
[Amdt 172-143, 60 FR 50304, Sept. 28, 1995, as amended by 172-143, 61 FR 
20749, May 8, 1996]



Sec. 172.312  Liquid hazardous materials in non-bulk packagings.

    (a) Except as provided in this section, each non-bulk combination 
package having inner packagings containing liquid hazardous materials 
must be:
    (1) Packed with closures upward, and
    (2) Legibly marked, with package orientation markings that conform 
pictorially to ISO Standard 780-1985, on two opposite vertical sides of 
the package with the arrows pointing in the correct upright direction. 
Depicting a rectangular border around the arrows is optional.

[[Page 299]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.011

    (b) Arrows for purposes other than indicating proper package 
orientation may not be displayed on a package containing a liquid 
hazardous material.
    (c) The requirements of paragraph (a) of this section do not apply 
to--
    (1) A non-bulk package with inner packagings which are cylinders.
    (2) Except when offered or intended for transportation by aircraft, 
packages containing flammable liquids in inner packagings of one liter 
or less prepared in accordance with Sec. 173.150 (b) or (c) of this 
subchapter.
    (3) When offered or intended for transportation by aircraft, 
packages containing flammable liquids in inner packagings of 120 ml (4 
fluid oz.) or less prepared in accordance with Sec. 173.150 (b) or (c) 
of this subchapter when packed with sufficient absorption material 
between the inner and outer packagings to completely absorb the liquid 
contents.
    (4) Liquids contained in manufactured articles (e.g., alcohol or 
mercury in thermometers) which are leak-tight in all orientations.
    (5) A non-bulk package with hermetically-sealed inner packagings.
[Amdt. 172-123, 55 FR 52591, Dec. 21, 1990, as amended at 56 FR 66254, 
Dec. 20, 1991; 57 FR 45458, Oct. 1, 1992]



Sec. 172.313  Poisonous hazardous materials.

    In addition to any other markings required by this subpart:
    (a) For materials poisonous by inhalation (see Sec. 171.8 of this 
subchapter), the package shall be marked ``Inhalation Hazard'' in 
association with the required labels or placards, as appropriate, or 
shipping name, when required. (See Sec. 172.302(b) of this subpart for 
size of markings on bulk packages.) Bulk packagings must be marked on 
two opposing sides.
    (b) Each non-bulk plastic outer packaging used as a single or 
composite packaging for materials meeting the definition of Division 6.1 
(in Sec. 173.132 of this subchapter) shall be permanently marked, by 
embossment or other durable means, with the word ``POISON'' in letters 
at least 6.3 mm (0.25 inch) in height. Additional text or symbols 
related to hazard warning may be included in the marking. The marking 
shall be located within 150 mm (6 inches) of the closure of the 
packaging.
    (c) A transport vehicle or freight container loaded at one loading 
facility with more than 1,000 kg (2,205 pounds) aggregate gross weight 
of non-bulk packages containing materials poisonous by inhalation in 
Hazard Zone A and B having the same proper shipping name and 
identification number shall be marked as required by Sec. 172.332 with 
the identification number specified for the material, in the 
Sec. 172.101 Table, on each side and each end of the transport vehicle 
or freight container.
[Amdt. 172-123, 55 FR 52592, Dec. 21, 1990, as amended at 57 FR 46624, 
Oct. 9, 1992; Amdt. 172-151, 62 FR 1228, Jan. 8, 1997; 62 FR 39398, 
39405, July 22, 1997]

    Effective Date Note: By Amdt. 172-151, 62 FR 1228, Jan. 8, 1997, 
Sec. 172.313 was amended by revising paragraph (a) and adding paragraph 
(c), effective Oct. 1, 1997. At 62 FR 39398 and 39405, July 22, 1997, 
the effective date was delayed until to Oct. 1, 1998, and Sec. 172.313 
was further amended by adding an introductory text and by revising 
paragraphs (a) and (c), effective Oct. 1, 1998. For the convenience of 
the user the revised text of paragraph (a) is set forth as follows:

Sec. 172.313  Poisonous hazardous materials.

    (a) A material poisonous by inhalation (see Sec. 171.8 of this 
subchapter) shall be marked ``Inhalation Hazard'' in association with 
the

[[Page 300]]

required labels or placards, as appropriate, and shipping name when 
required. The marking must be on two opposing sides of a bulk packaging. 
(See Sec. 172.302(b) of this subpart for size of markings on bulk 
packages.) When the words ``Inhalation Hazard'' appear on the label, as 
prescribed in Secs. 172.416 and 172.429, or placard, as prescribed in 
Secs. 172.540 and 172.555, the ``Inhalation Hazard'' marking is not 
required on the package.

                                * * * * *



Sec. 172.316  Packagings containing materials classed as ORM-D.

    (a) Each non-bulk packaging containing a material classed as ORM-D 
must be marked on at least one side or end with the ORM-D designation 
immediately following or below the proper shipping name of the material. 
The ORM designation must be placed within a rectangle that is 
approximately 6.3 mm (0.25 inches) larger on each side than the 
designation. The designation for ORM-D must be:
    (1) ORM-D-AIR for an ORM-D that is prepared for air shipment and 
packaged in accordance with the provisions of Sec. 173.27 of this 
subchapter.
    (2) ORM-D for an ORM-D other than as described in paragraph (a)(1) 
of this section.
    (b) When the ORM-D marking including the proper shipping name can 
not be affixed on the package surface, it may be on an attached tag.
    (c) The marking ORM-D is the certification by the person offering 
the packaging for transportation that the material is properly 
described, classed, packaged, marked and labeled (when appropriate) and 
in proper condition for transportation according to the applicable 
regulations of this subchapter. This form of certification does not 
preclude the requirement for a certificate on a shipping paper when 
required by subpart C of this part.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-123, 
55 FR 52592, Dec. 21, 1990; 56 FR 66254, Dec. 20, 1991]



Sec. 172.320  Explosive hazardous materials.

    (a) Except as otherwise provided in paragraphs (b), (c), (d) and (e) 
of this section, each package containing a Class 1 material must be 
marked with the EX-number for each substance, article or device 
contained therein.
    (b) Except for fireworks approved in accordance with Sec. 173.56(j) 
of this subchapter, a package of Class 1 materials may be marked, in 
lieu of the EX-number required by paragraph (a) of this section, with a 
national stock number issued by the Department of Defense or identifying 
information, such as a product code required by regulations for 
commercial explosives specified in 27 CFR part 55, if the national stock 
number or identifying information can be specifically associated with 
the EX-number assigned.
    (c) When more than five different Class 1 materials are packed in 
the same package, the package may be marked with only five of the EX-
numbers, national stock numbers, product codes, or combination thereof.
    (d) The requirements of this section do not apply if the EX-number, 
product code or national stock number of each explosive item described 
under a proper shipping description is shown in association with the 
shipping description required by Sec. 172.202(a) of this part. Product 
codes and national stock numbers must be traceable to the specific EX-
number assigned by the Associate Administrator for Hazardous Materials 
Safety.
    (e) The requirements of this section do not apply to the following 
Class 1 materials:
    (1) Those being shipped to a testing agency in accordance with 
Sec. 173.56(d) of this subchapter;
    (2) Those being shipped in accordance with Sec. 173.56(e) of this 
subchapter, for the purposes of developmental testing;
    (3) Those which meet the requirements of Sec. 173.56(h) of this 
subchapter and therefore are not subject to the approval process of 
Sec. 173.56 of this subchapter;
    (4) Until October 1, 1993, those which are shipped under Sec. 171.19 
of this subchapter; and
    (5) Those that are transported in accordance with Sec. 173.56(c)(2) 
of this subchapter and, therefore, are covered by a national security 
classification currently in effect.
[Amdt. 172-123, 56 FR 66254, Dec. 20, 1991, as amended by Amdt. 172-139, 
59 FR 67487, Dec. 29, 1994]

[[Page 301]]



Sec. 172.322  Marine pollutants.

    (a) For vessel transportation of each non-bulk packaging that 
contains a marine pollutant--
    (1) If the proper shipping name for a material which is a marine 
pollutant does not identify by name the component which makes the 
material a marine pollutant, the name of that component must be marked 
on the package in parentheses in association with the marked proper 
shipping name. Where two or more components which make a material a 
marine pollutant are present, the names of at least two of the 
components most predominantly contributing to the marine pollutant 
designation must appear in parentheses in association with the marked 
proper shipping name; and
    (2) The MARINE POLLUTANT mark shall be placed in association with 
the hazard warning labels required by Subpart E of this Part or, in the 
absence of any labels, in association with the marked proper shipping 
name.
    (b) A bulk packaging that contains a marine pollutant must--
    (1) Be marked with the MARINE POLLUTANT mark on at least two 
opposing sides or two ends other than the bottom if the packaging has a 
capacity of less than 3,785 L (1,000 gallons). The mark must be visible 
from the direction it faces. The mark may be displayed in black 
lettering on a square-on-point configuration having the same outside 
dimensions as a placard; or
    (2) Be marked on each end and each side with the MARINE POLLUTANT 
mark if the packaging has a capacity of 3,785 L (1,000 gallons) or more. 
The mark must be visible from the direction it faces. The mark may be 
displayed in black lettering on a square-on-point configuration having 
the same outside dimensions as a placard.
    (c) A transport vehicle or freight container that contains a package 
subject to the marking requirements of paragraph (a) or (b) of this 
section must be marked with the MARINE POLLUTANT mark. The mark must 
appear on each side and each end of the transport vehicle or freight 
container, and must be visible from the direction it faces. This 
requirement may be met by the marking displayed on a freight container 
or portable tank loaded on a motor vehicle or rail car. This mark may be 
displayed in black lettering on a white square-on-point configuration 
having the same outside dimensions as a placard.
    (d) The MARINE POLLUTANT mark is not required--
    (1) On a combination package containing a severe marine pollutant 
(see appendix B to Sec. 172.101), in inner packagings each of which 
contains:
    (i) 0.5 liters (17 ounces) or less net capacity for liquids; or
    (ii) 500 grams (17.6 ounces) or less net capacity for solids.
    (2) On a combination packaging containing a marine pollutant, other 
than a severe marine pollutant, in inner packagings each of which 
contains:
    (i) 5 liters (1.3 gallons) or less net capacity for liquids; or
    (ii) 5 kilograms (11 pounds) or less net capacity for solids.
    (3) Except for transportation by vessel, on a bulk packaging, 
freight container or transport vehicle that bears a label or placard 
specified in Subparts E or F of this part.
    (e) MARINE POLLUTANT mark. The MARINE POLLUTANT mark must conform to 
the following:
    (1) Except for size, the MARINE POLLUTANT mark must appear as 
follows:

[[Page 302]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.012

    (2) The symbol, letters and border must be black and the background 
white, or the symbol, letters, border and background must be of 
contrasting color to the surface to which the mark is affixed. Each side 
of the mark must be--
    (i) At least 100 mm (3.9 inches) for marks applied to:
    (A) Non-bulk packagings, except in the case of packagings which, 
because of their size, can only bear smaller marks; or
    (B) Bulk packagings with a capacity of less than 3785 L (1,000 
gallons); or
    (ii) At least 250 mm (9.8 inches) for marks applied to all other 
bulk packagings.
[Amdt. 172-127, 57 FR 52938, Nov. 5, 1992, as amended by Amdt. 172-136, 
59 FR 38064, July 26, 1994; Amdt. 172-145, 60 FR 49110, Sept. 21, 1995]



Sec. 172.324  Hazardous substances in non-bulk packagings.

    For each non-bulk package that contains a hazardous substance--
    (a) Except for packages of radioactive material labeled in 
accordance with Sec. 172.403, if the proper shipping name of a material 
that is a hazardous substance does not identify the hazardous substance 
by name, the name of the hazardous substance must be marked on the 
package, in parentheses, in association with the proper shipping name. 
If the material contains two or more hazardous substances, at least two 
hazardous substances, including the two with the lowest reportable 
quantities (RQs), must be identified. For a hazardous waste, the waste 
code (e.g., D001), if appropriate, may be used to identify the hazardous 
substance.
    (b) The letters ``RQ'' shall be marked on the package in association 
with the proper shipping name.
[Amdt. 172-108, 52 FR 4843, Feb. 17, 1987, as amended by Amdt. 172-119, 
54 FR 39505, Sept. 26, 1989; Amdt. 172-122, 55 FR 46825, Nov. 7, 1990; 
Amdt. 172-123, 55 FR 52592, Dec. 21, 1990; Amdt. 172-127, 57 FR 52939, 
Nov. 5, 1992; Amdt. 172-149, 61 FR 27172, May 30, 1996]



Sec. 172.325  Elevated temperature materials.

    (a) Except as provided in paragraph (b) of this section, a bulk 
packaging containing an elevated temperature material must be marked on 
two opposing sides with the word ``HOT'' in black or white Gothic 
lettering on a contrasting background. The marking

[[Page 303]]

must be displayed on the packaging itself or in black lettering on a 
plain white square-on-point configuration having the same outside 
dimensions as a placard. (See Sec. 172.302(b) for size of markings on 
bulk packagings.)
    (b) Bulk packagings containing molten aluminum or molten sulfur must 
be marked ``MOLTEN ALUMINUM'' or ``MOLTEN SULFUR'', respectively, in the 
same manner as prescribed in paragraph (a) of this section.
    (c) If the identification number is displayed on a white-square-on-
point display configuration, as prescribed in Sec. 172.336(b), the word 
``HOT'' may be displayed in the upper corner of the same white-square-
on-point display configuration. The word ``HOT'' must be in black 
letters having a height of at least 50 mm (2.0 inches). Except for size, 
these markings shall be as illustrated for an Elevated temperature 
material, liquid, n.o.s.:

[[Page 304]]

[GRAPHIC] [TIFF OMITTED] TR29DE94.000

[Amdt. 172-125, 58 FR 3348, Jan. 8, 1993, as amended by Amdt. 172-139, 
59 FR 67487, Dec. 29, 1994]

[[Page 305]]



Sec. 172.326  Portable tanks.

    (a) Shipping name. No person may offer for transportation or 
transport a portable tank containing a hazardous material unless it is 
legibly marked on two opposing sides with the proper shipping name 
specified for the material in the Sec. 172.101 Table.
    (b) Owner's name. The name of the owner or of the lessee, if 
applicable, must be displayed on a portable tank that contains a 
hazardous material.
    (c) Identification numbers. (1) If the identification number 
markings required by Sec. 172.302(a) are not visible, a transport 
vehicle or freight container used to transport a portable tank 
containing a hazardous material must be marked on each side and each end 
as required by Sec. 172.332 with the identification number specified for 
the material in the Sec. 172.101 Table.
    (2) Each person who offers a portable tank containing a hazardous 
material to a motor carrier, for transportation in a transport vehicle 
or freight container, shall provide the motor carrier with the required 
identification numbers on placards, orange panels, or the white square-
on-point configuration, as appropriate, for each side and each end of 
the transport vehicle or freight container from which identification 
numbers on the portable tank are not visible.
[Amdt. 172-123, 55 FR 52592, Dec. 21, 1990, as amended at 56 FR 66255, 
Dec. 20, 1991]



Sec. 172.328  Cargo tanks.

    (a) Providing and affixing identification numbers. Unless a cargo 
tank is already marked with the identification numbers required by this 
subpart, the identification numbers must be provided or affixed as 
follows:
    (1) A person who offers a hazardous material to a motor carrier for 
transportation in a cargo tank shall provide the motor carrier the 
identification numbers on placards or shall affix orange panels 
containing the required identification numbers, prior to or at the time 
the material is offered for transportation.
    (2) A person who offers a cargo tank containing a hazardous material 
for transportation shall affix the required identification numbers on 
panels or placards prior to or at the time the cargo tank is offered for 
transportation.
    (3) For a cargo tank transported on or in a transport vehicle or 
freight container, if the identification number marking on the cargo 
tank required by Sec. 172.302(a) would not normally be visible during 
transportation--
    (i) The transport vehicle or freight container must be marked as 
required by Sec. 172.332 on each side and each end with the 
identification number specified for the material in the Sec. 172.101 
Table; and
    (ii) When the cargo tank is permanently installed within an enclosed 
cargo body of the transport vehicle or freight container, the 
identification number marking required by Sec. 172.302(a) need only be 
displayed on each side and end of a cargo tank that is visible when the 
cargo tank is accessed.
    (b) Required markings: Gases. Except for certain nurse tanks which 
must be marked as specified in Sec. 173.315(m) of this subchapter, each 
cargo tank transporting a Class 2 material subject to this subchapter 
must be marked, in lettering no less than 50 mm (2.0 inches), on each 
side and each end with--
    (1) The proper shipping name specified for the gas in the 
Sec. 172.101 Table; or
    (2) An appropriate common name for the material (e.g., ``Refrigerant 
Gas'').
    (c) QT/NQT markings. Each MC 330 and MC 331 cargo tank must be 
marked near the specification plate, in letters no less than 50 mm (2.0 
inches) in height, with--
    (1) ``QT'', if the cargo tank is constructed of quenched and 
tempered steel; or
    (2) ``NQT'', if the cargo tank is constructed of other than quenched 
and tempered steel.
[Amdt. 172-123, 55 FR 52592, Dec. 21, 1990, as amended at 56 FR 66255, 
Dec. 20, 1991; Amdt. 172-151, 62 FR 1228, Jan. 8, 1997; 62 FR 39045, 
July 22, 1997]

    Effective Date Note: At 62 FR, 39405, July 22, 1997, Sec. 172.328 
(a)(3), as added by Amdt. 172-151, 62 FR 1228 Jan. 8, 1997, effective 
Oct. 1, 1998, was revised, effective Oct. 1, 1998.

[[Page 306]]



Sec. 172.330  Tank cars and multi-unit tank car tanks.

    (a) Shipping name and identification number. No person may offer for 
transportation or transport a hazardous material--
    (1) In a tank car unless the following conditions are met:
    (i) The tank car must be marked on each side and each end as 
required by Sec. 172.302 with the identification number specified for 
the material in the Sec. 172.101 Table; and
    (ii) A tank car containing any of the following materials must be 
marked on each side with the key words of the proper shipping name 
specified for the material in the Sec. 172.101 Table, or with a common 
name authorized for the material in this subchapter (e.g., ``Refrigerant 
Gas''):

Acrolein, inhibited
Ammonia, anhydrous, liquefied
Ammonia solutions (more than 50% ammonia)
Bromine or Bromine solutions
Bromine chloride
Chloroprene, inhibited
Dispersant gas or Refrigerant gas (as defined in Sec. 173.115 of this 
subchapter)
Division 2.1 materials
Division 2.2 materials (in Class DOT 107 tank cars only)
Division 2.3 materials
Formic acid
Hydrocyanic acid, aqueous solutions
Hydrofluoric acid, solution
Hydrogen cyanide, stabilized (less than 3% water)
Hydrogen fluoride, anhydrous
Hydrogen peroxide, aqueous solutions (greater than 20% hydrogen 
peroxide)
Hydrogen peroxide, stabilized
Hydrogen peroxide and peroxyacetic acid mixtures
Nitric acid (other than red fuming)
Phosphorus, amorphous
Phosphorus, white dry or Phosphorus, white, under water or Phosphorus 
white, in solution, or Phosphorus, yellow dry or Phosphorus, yellow, 
under water or Phosphorus, yellow, in solution
Phosphorus white, molten
Potassium nitrate and sodium nitrate mixtures
Potassium permanganate
Sulfur trioxide, inhibited
Sulfur trioxide, uninhibited

    (2) In a multi-unit tank car tank, unless the tank is marked on two 
opposing sides, in letters and numerals no less than 50 mm (2.0 inches) 
high--
    (i) With the proper shipping name specified for the material in the 
Sec. 172.101 Table or with a common name authorized for the material in 
this subchapter (e.g., ``Refrigerant Gas''); and
    (ii) With the identification number specified for the material in 
the Sec. 172.101 Table, unless marked in accordance with 
Secs. 172.302(a) and 172.332 of this subpart.
    (b) A motor vehicle or rail car used to transport a multi-unit tank 
car tank containing a hazardous material must be marked on each side and 
each end, as required by Sec. 172.332, with the identification number 
specified for the material in the Sec. 172.101 Table.
[Amdt. 172-123, 55 FR 52593, Dec. 21, 1990, as amended at 56 FR 66255, 
Dec. 20, 1991; 57 FR 45458, Oct. 1, 1992; Amdt. 172-148, 61 FR 28676, 
June 5, 1996; Amdt. 172-148, 61 FR 50254, Sept. 25, 1996]



Sec. 172.331  Bulk packagings other than portable tanks, cargo tanks, tank cars and multi-unit tank car tanks.

    (a) Each person who offers a hazardous material to a motor carrier 
for transportation in a bulk packaging shall provide the motor carrier 
with the required identification numbers on placards or plain white 
square-on-point display configurations, as authorized, or shall affix 
orange panels containing the required identification numbers to the 
packaging prior to or at the time the material is offered for 
transportation, unless the packaging is already marked with the 
identification number as required by this subchapter.
    (b) Each person who offers a bulk packaging containing a hazardous 
material for transportation shall affix to the packaging the required 
identification numbers on orange panels, square-on-point configurations 
or placards, as appropriate, prior to, or at the time the packaging is 
offered for transportation unless it is already marked with 
identification numbers as required by this subchapter.
    (c) For a bulk packaging contained in or on a transport vehicle or 
freight container, if the identification number marking on the bulk 
packaging (e.g., an IBC) required by Sec. 172.302(a) is not visible, the 
transport vehicle or freight container must be marked as required by 
Sec. 172.332 on each side and each end

[[Page 307]]

with the identification number specified for the material in the 
Sec. 172.101 Table.
[Amdt. 172-123, 55 FR 52593, Dec. 21, 1994, as amended by Amdt. 172-151, 
62 FR 1228, Jan. 8, 1997; 62 FR 39398, July 22, 1997]

    Effective Date Note: By Amdt. 172-151, 62 FR 1228, Jan. 8, 1997, 
Sec. 172.302(c) was added effective Oct. 1, 1997. At 62 FR 39398, July 
22, 1997, the effective date was delayed until Oct. 1, 1998.



Sec. 172.332  Identification number markings.

    (a) General. When required by Secs. 172.302, 172.326, 172.328, 
172.330, or Sec. 172.331 of this subpart, identification numbers shall 
be displayed on orange panels or placards as specified in this section 
or, when appropriate, on white square-on-point configurations as 
prescribed in Sec. 172.336(b).
    (b) Orange panels. Display of an identification number on an orange 
panel shall be in conformance with the following:
    (1) The orange panel must be 160 mm (6.3 inches) high by 400 mm 
(15.7 inches) wide with a 15 mm (0.6 inches) black outer border. The 
identification number shall be displayed in 100 mm (3.9 inches) black 
Helvetica Medium numerals on the orange panel. Measurements may vary 
from those specified plus or minus 5 mm (0.2 inches).
    (2) The orange panel may be made of any durable material prescribed 
for placards in Sec. 172.519, and shall be of the orange color specified 
for labels or placards in appendix A to this part.
    (3) The name and hazard class of a material may be shown in the 
upper left border of the orange panel in letters not more than 18 points 
high.
    (4) Except for size and color, the orange panel and identification 
numbers shall be as illustrated for Liquefied petroleum gas:
[GRAPHIC] [TIFF OMITTED] TC02MR91.013

    (c) Placards. Display of an identification number on a hazard 
warning placard shall be in conformance with the following:
    (1) The identification number shall be displayed across the center 
area of the placard in 88 mm (3.5 inches) black Alpine Gothic or 
Alternate Gothic No. 3 numerals on a white background 100 mm (3.9 
inches) high and approximately 215 mm (8.5 inches) wide and may be 
outlined with a solid or dotted line border.
    (2) The top of the 100 mm (3.9 inches) high white background shall 
be approximately 40 mm (1.6 inches) above the placard horizontal center 
line.
    (3) An identification number may be displayed only on a placard 
corresponding to the primary hazard class of the hazardous material.
    (4) For a COMBUSTIBLE placard used to display an identification 
number, the entire background below the white background for the 
identification number must be white during transportation by rail and 
may be white during transportation by highway.
    (5) The name of the hazardous material and the hazard class may be 
shown in letters not more than 18 points high immediately within the 
upper border of the space on the placard bearing the identification 
number of the material.
    (6) If an identification number is placed over the word(s) on a 
placard, the word(s) should be substantially covered to maximize the 
effectiveness of the identification number.
    (d) Except for size and color, the display of an identification 
number on a

[[Page 308]]

placard shall be as illustrated for Acetone:
[GRAPHIC] [TIFF OMITTED] TC02MR91.014

[Amdt. 172-101, 45 FR 74667, Nov. 10, 1980, as amended by Amdt. 172-81, 
48 FR 28099, June 20, 1983; Amdt. 172-110, 52 FR 29527, Aug. 10, 1987; 
Amdt. 172-123, 55 FR 52593, Dec. 21, 1990; 56 FR 66255, Dec. 20, 1991]

    Effective Date Note: By Amdt. 172-151, 62 FR 1228, Jan. 8, 1997, 
Sec. 172.332(a) was revised. At 62 FR 39398, July 22, 1997 the effective 
date was delayed until Oct. 1, 1998. For the convenience of the user the 
revised text is set forth as follows:

Sec. 172.332  Identification number markings.

    (a) General. When required by Secs. 172.301, 172.302, 172.313, 
172.326, 172.328, 172.330, or 172.331 of this subpart, identification 
numbers must be displayed on orange panels or placards as specified in 
this section or, when appropriate, on plain white square-on-point 
configurations as prescribed in Sec. 172.336(b).

                                * * * * *



Sec. 172.334  Identification numbers; prohibited display.

    (a) No person may display an identification number on a RADIOACTIVE, 
EXPLOSIVES 1.1, 1.2, 1.3, 1.4, 1.5 or 1.6, DANGEROUS, or subsidiary 
hazard placard.
    (b) No person may display an identification number on a placard, 
orange panel or white square-on-point display configuration unless--
    (1) The identification number is specified for the material in 
Sec. 172.101;
    (2) The identification number is displayed on the placard, orange 
panel or white square-on-point configuration authorized by Sec. 172.332 
or Sec. 172.336(b), as appropriate, and any placard used for display of 
the identification number corresponds to the hazard class of the 
material specified in Sec. 172.504;
    (3) Except as provided under Sec. 172.336 (c)(4) or (c)(5), the 
package, freight container, or transport vehicle on which the number is 
displayed contains the hazardous material associated with that 
identification number in Sec. 172.101.
    (c) Except as required by Sec. 172.332(c)(4) for a combustible 
liquid, the identification number of a material may be displayed only on 
the placards required by the tables in Sec. 172.504.
    (d) Except as provided in Sec. 172.336, a placard bearing an 
identification number may not be used to meet the requirements of 
subpart F of this part unless it is the correct identification number 
for all hazardous materials of the same class in the transport vehicle 
or freight container on which it is displayed.
    (e) Except as specified in Sec. 172.338, an identification number 
may not be displayed on an orange panel on a cargo tank unless affixed 
to the cargo tank by the person offering the hazardous material for 
transportation in the cargo tank.
    (f) If a placard is required by Sec. 172.504, an identification 
number may not be displayed on an orange panel unless it is displayed in 
proximity to the placard.
    (g) No person shall add any color, number, letter, symbol, or word 
other than as specified in this subchapter, to any identification number 
marking display which is required or authorized by this subchapter.
[Amdt. 172-101, 45 FR 74667, Nov. 10, 1980, as amended by Amdt. 172-104, 
51 FR 23078, June 25, 1986; Amdt. 172-110, 52 FR 29528, Aug. 10, 1987; 
Amdt. 172-123, 55 FR 52593, Dec. 21, 1990; 56 FR 66255, Dec. 20, 1991; 
Amdt. 172-127, 59 FR 49133, Sept. 26, 1994]



Sec. 172.336  Identification numbers; special provisions.

    (a) When not required or prohibited by this subpart, identification 
numbers may be displayed on a transport vehicle or a freight container 
in the manner prescribed by this subpart.
    (b) For hazardous materials in hazard classes for which hazard 
warning placards are not specified, identification numbers, when 
required, must be displayed on either orange panels (see

[[Page 309]]

Sec. 172.332(b)) or on a plain white square-on-point display 
configuration having the same outside dimensions as a placard. In 
addition, for materials in hazard classes for which placards are 
specified and identification number displays are required, but for which 
identification numbers may not be displayed on the placards authorized 
for the material (see Sec. 172.334(a)), identification numbers must be 
displayed on orange panels or on the plain white square-on-point display 
configuration in association with the required placards. An 
identification number displayed on a white square-on-point display 
configuration is not considered to be a placard.
    (1) The 100 mm (3.9 inch) by 215 mm (8.5 inches) area containing the 
identification number shall be located as prescribed by Sec. 172.332 
(c)(1) and (c)(2) and may be outlined with a solid or dotted line 
border.
    (2) [Reserved]
    (c) Identification numbers are not required:
    (1) On the ends of a portable tank, cargo tank or tank car having 
more than one compartment if hazardous materials having different 
identification numbers are being transported therein. In such a 
circumstance, the identification numbers on the sides of the tank shall 
be displayed in the same sequence as the compartments containing the 
materials they identify.
    (2) On a cargo tank containing only gasoline, if the cargo tank is 
marked ``Gasoline'' on each side and rear in letters no less than 50 mm 
(2 inches) high, or is placarded in accordance with Sec. 172.542(c).
    (3) On a cargo tank containing only fuel oil, if the cargo tank is 
marked ``Fuel Oil'' on each side and rear in letters no less than 50 mm 
(2 inches) high, or is placarded in accordance with Sec. 172.544(c).
    (4) For each of the different liquid petroleum distillate fuels, 
including gasoline and gasohol in a compartmented cargo tank or tank 
car, if the identification number is displayed for the distillate fuel 
having the lowest flash point.
    (5) For each of the different liquid petroleum distillate fuels, 
including gasoline and gasohol transported in a cargo tank, if the 
identification number is displayed for the liquid petroleum distillate 
fuel having the lowest flash point.
    (6) On nurse tanks meeting the provisions of Sec. 173.315(m) of this 
subchapter.
[Amdt. 172-101, 45 FR 74667, Nov. 10, 1980, as amended by Amdt. 172-74, 
47 FR 40365, Sept. 30, 1982; Amdt. 172-109, 52 FR 13038, Apr. 20, 1987; 
Amdt. 172-110, 52 FR 29528, Aug. 10, 1987; Amdt. 172-123, 55 FR 52593, 
Dec. 21, 1990; 56 FR 66255, Dec. 20, 1991]



Sec. 172.338  Replacement of identification numbers.

    If more than one of the identification number markings on placards, 
orange panels, or white square-on-point display configurations that are 
required to be displayed are lost, damaged or destroyed during 
transportation, the carrier shall replace all the missing or damaged 
identification numbers as soon as practicable. However, in such a case, 
the numbers may be entered by hand on the appropriate placard, orange 
panel or white square-on-point display configuration providing the 
correct identification numbers are entered legibly using an indelible 
marking material. When entered by hand, the identification numbers must 
be located in the white display area specified in Sec. 172.332. This 
section does not preclude required compliance with the placarding 
requirements of subpart F of this subchapter.
[Amdt. 172-110, 52 FR 29528, Aug. 10, 1987]



                           Subpart E--Labeling



Sec. 172.400  General labeling requirements.

    (a) Except as specified in Sec. 172.400a, each person who offers for 
transportation or transports a hazardous material in any of the 
following packages or containment devices, shall label the package or 
containment device with labels specified for the material in the 
Sec. 172.101 Table and in this subpart:
    (1) A non-bulk package;
    (2) A bulk packaging, other than a cargo tank, portable tank, or 
tank car, with a volumetric capacity of less than 18 m3 (640 
cubic feet), unless placarded in accordance with subpart F of this part;

[[Page 310]]

    (3) A portable tank of less than 3785 L (1000 gallons) capacity, 
unless placarded in accordance with subpart F of this part;
    (4) A DOT Specification 106 or 110 multi-unit tank car tank, unless 
placarded in accordance with subpart F of this part; and
    (5) An overpack, freight container or unit load device, of less than 
18 m3 (640 cubic feet), which contains a package for which 
labels are required, unless placarded or marked in accordance with 
Sec. 172.512 of this part.
    (b) Labeling is required for a hazardous material which meets one or 
more hazard class definitions, in accordance with Column 6 of the 
Sec. 172.101 Table and the following table:

                                                                        
------------------------------------------------------------------------
                                                                Label   
                                                              design or 
      Hazard class or division             Label name          section  
                                                              reference 
                                                               (Sec. )  
------------------------------------------------------------------------
1.1................................  EXPLOSIVE 1.1.........      172.411
1.2................................  EXPLOSIVE 1.2.........      172.411
1.3................................  EXPLOSIVE 1.3.........      172.411
1.4................................  EXPLOSIVE 1.4.........      172.411
1.5................................  EXPLOSIVE 1.5.........      172.411
1.6................................  EXPLOSIVE 1.6.........      172.411
2.1................................  FLAMMABLE GAS.........      172.417
2.2................................  NON-FLAMMABLE GAS.....      172.415
2.3................................  POISON GAS............      172.416
3 (flammable liquid)...............  FLAMMABLE LIQUID......      172.419
Combustible liquid.................  (none)................             
4.1................................  FLAMMABLE SOLID.......      172.420
4.2................................  SPONTANEOUSLY               172.422
                                      COMBUSTIBLE.                      
4.3................................  DANGEROUS WHEN WET....      172.423
5.1................................  OXIDIZER..............      172.426
5.2................................  ORGANIC PEROXIDE......      172.427
6.1 (Packing Groups I and II)......  POISON................      172.430
6.1 (Packing Group III)............  KEEP AWAY FROM FOOD...      172.431
6.2................................  INFECTIOUS SUBSTANCE        172.432
                                      \1\.                              
7 (see Sec.  172.403)..............  RADIOACTIVE WHITE-I...      172.436
7..................................  RADIOACTIVE YELLOW-II.      172.438
7..................................  RADIOACTIVE YELLOW-III      172.440
7 (empty packages, see Sec.          EMPTY.................      172.450
 173.427).                                                              
8..................................  CORROSIVE.............      172.442
9..................................  CLASS 9...............     172.446 
------------------------------------------------------------------------
\1\ The ETIOLOGIC AGENT label specified in regulations of the Department
  of Health and Human Services at 42 CFR 72.3 may apply to packages of  
  infectious substances.                                                

[Amdt. 172-123, 55 FR 52593, Dec. 21, 1990, as amended at 56 FR 66255, 
Dec. 20, 1991]

    Effective Date Note: At 62 FR 39405, July 22, 1997, in 
Sec. 172.400(b), the table, as revised by Amdt. 172-151, 62 FR 1228, 
Jan. 8, 1997 effective Oct. 1, 1998, was amended by revising the entries 
for Division 6.1 materials, effective Oct. 1, 1998. For the convenience 
of the user the revised text is set forth as follows:

Sec. 172.400  General labeling requirements.

                                * * * * *

    (b) * * *

                                                                        
------------------------------------------------------------------------
                                                                Label   
                                                              design or 
     Hazard class or division             Label name           section  
                                                              reference 
------------------------------------------------------------------------
1.1..............................  EXPLOSIVES 1.1..........      172.411
1.2..............................  EXPLOSIVES 1.2..........      172.411
1.3..............................  EXPLOSIVES 1.3..........      172.411
1.4..............................  EXPLOSIVES 1.4..........      172.411
1.5..............................  EXPLOSIVES 1.5..........      172.411
1.6..............................  EXPLOSIVES 1.6..........      172.411
2.1..............................  FLAMMABLE GAS...........      172.417
2.2..............................  NONFLAMMABLE GAS........      172.415
2.3..............................  POISON GAS..............      172.416
3 (flammable liquid) Combustible   FLAMMABLE LIQUID (none).      172.419
 liquid.                                                                
4.1..............................  FLAMMABLE SOLID.........      172.420
4.2..............................  SPONTANEOUSLY                 172.422
                                    COMBUSTIBLE.                        
4.3..............................  DANGEROUS WHEN WET......      172.423
5.1..............................  OXIDIZER................      172.426
5.2..............................  ORGANIC PEROXIDE........      172.427
6.1 (inhalation hazard, Zone A or  POISON INHALATION HAZARD      172.429
 B).                                                                    
6.1 (PG I or II, other than Zone   POISON..................      172.430
 A or B inhalation hazard).                                             
6.1 (PG III).....................  KEEP AWAY FROM FOOD.....      172.431
6.2..............................  INFECTIOUS SUBSTANCE \1\      172.432
7 (see Sec.  172.403)............  RADIOACTIVE WHITE-I.....      172.436
7................................  RADIOACTIVE YELLOW-II...      172.438

[[Page 311]]

                                                                        
7................................  RADIOACTIVE YELLOW-III..      172.440
7 (empty packages, see Sec.        EMPTY...................      172.450
 173.427).                                                              
8................................  CORROSIVE...............      172.442
9................................  CLASS 9.................      172.446
------------------------------------------------------------------------
\1\ The ETIOLOGIC AGENT label specified in regulations of the Department
  of Health and Human Services at 42 CFR 72.3 may apply to packages of  
  infectious substances.                                                



Sec. 172.400a  Exceptions from labeling.

    (a) Notwithstanding the provisions of Sec. 172.400, a label is not 
required on--
    (1) A cylinder, or a Dewar flask conforming to Sec. 173.320 of this 
subchapter containing a Division 2.1 or Division 2.2 gas that is--
    (i) Not poisonous;
    (ii) Carried by a private or contract motor carrier;
    (iii) Not overpacked; and
    (iv) Durably and legibly marked in accordance with CGA Pamphlet C-7, 
appendix A.
    (2) A package or unit of military explosives (including ammunition) 
shipped by or on behalf of the DOD when in--
    (i) Freight containerload, carload or truckload shipments, if loaded 
and unloaded by the shipper or DOD; or
    (ii) Unitized or palletized break-bulk shipments by cargo vessel 
under charter to DOD if at least one required label is displayed on each 
unitized or palletized load.
    (3) A package containing a hazardous material other than ammunition 
that is--
    (i) Loaded and unloaded under the supervision of DOD personnel, and
    (ii) Escorted by DOD personnel in a separate vehicle.
    (4) A compressed gas cylinder permanently mounted in or on a 
transport vehicle.
    (5) A freight container, aircraft unit load device or portable tank, 
which--
    (i) Is placarded in accordance with subpart F of this part, or
    (ii) Conforms to paragraph (a)(3) or (b)(3) of Sec. 172.512.
    (6) An overpack or unit load device in or on which labels 
representative of each hazardous material in the overpack or unit load 
device are visible.
    (7) A package of low specific activity radioactive material, when 
transported under Sec. 173.425(b) of this subchapter.
    (b) Certain exceptions to labeling requirements are provided for 
small quantities and limited quantities in applicable sections in part 
173 of this subchapter.
    (c) Notwithstanding the provisions of Sec. 172.402(a), a subsidiary 
hazard label is not required on a package containing a Class 8 
(corrosive) material which has a subsidiary hazard of Division 6.1 
(poisonous) if the toxicity of the material is based solely on the 
corrosive destruction of tissue rather than systemic poisoning.
    (d) For Division 6.1 Packing Group III materials, a POISON label may 
be used in place of a KEEP AWAY FROM FOOD label.
[Amdt. 172-123, 55 FR 52594, Dec. 21, 1990, as amended by Amdt. 172-132, 
58 FR 50501, Sept. 27, 1993; 172-130, 58 FR 51531, Oct. 1, 1993; Amdt. 
172-139, 59 FR 67490, Dec. 29, 1994; Amdt. 172-145, 60 FR 49110, Sept. 
21, 1995]



Sec. 172.401  Prohibited labeling.

    (a) Except as otherwise provided in this section, no person may 
offer for transportation and no carrier may transport a package bearing 
a label specified in this subpart unless:
    (1) The package contains a material that is a hazardous material, 
and
    (2) The label represents a hazard of the hazardous material in the 
package.
    (b) No person may offer for transportation and no carrier may 
transport a package bearing any marking or label which by its color, 
design, or shape could be confused with or conflict with a label 
prescribed by this part.
    (c) The restrictions in paragraphs (a) and (b) of this section, do 
not apply to packages labeled in conformance with:

[[Page 312]]

    (1) Any United Nations recommendation, including the class number 
(see Sec. 172.407), in the document entitled ``Transport of Dangerous 
Goods.'';
    (2) The International Maritime Organization (IMO) requirements, 
including the class number (see Sec. 172.407), in the document entitled 
``International Maritime Dangerous Goods Code'';
    (3) The ICAO Technical Instructions; or
    (4) The TDG Regulations.
    (d) The provisions of paragraph (a) of this section do not apply to 
a packaging bearing a label if that packaging is:
    (1) Unused or cleaned and purged of all residue;
    (2) Transported in a transport vehicle or freight container in such 
a manner that the packaging is not visible during transportation; and
    (3) Loaded by the shipper and unloaded by the shipper or consignee.
[Amdt. 172-9, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-75, 47 
FR 44471, Oct. 7, 1982; Amdt. 172-77, 47 FR 54822, Dec. 6, 1982; Amdt. 
172-94, 49 FR 38134, Sept. 27, 1984; Amdt. 172-100, 50 FR 41521, Oct. 
11, 1985; Amdt. 172-123, 55 FR 52594, Dec. 21, 1990; Amdt. 172-132, 58 
FR 50501, Sept. 27, 1993]



Sec. 172.402  Additional labeling requirements.

    (a) Subsidiary hazard labels. Each package containing a hazardous 
material--
    (1) Shall be labeled with primary and subsidiary hazard labels as 
specified in Column 6 of the Sec. 172.101 Table (unless excepted in 
paragraph (a)(2) of this section); and
    (2)For other than Class 1 or Class 2 materials (for subsidiary 
labeling requirements for Class 1 or Class 2 materials see paragraph (e) 
or paragraphs (f) and (g), respectively, of this section), if not 
already labeled under paragraph (a)(1) of this section, shall be labeled 
with subsidiary hazard labels in accordance with the following table:

                        Subsidiary Hazard Labels                        
------------------------------------------------------------------------
                                  Subsidiary Hazard (Class or Division) 
    Subsidiary hazard level    -----------------------------------------
        (packing group)           3    4.1   4.2   4.3   5.1   6.1    8 
------------------------------------------------------------------------
I.............................  X     ***   ***   X     X     X     X   
II............................  X     X     X     X     X     X     X   
III...........................  *     X     X     X     X     X     X   
------------------------------------------------------------------------
X--Required for all modes.                                              
*--Required for all modes, except for a material with a flash point at  
  or above 38 deg. C (100 deg.F) transported by rail or highway.        
**--Reserved                                                            
***--Impossible as subsidiary hazard.                                   

    (b) Display of hazard class on labels. The appropriate hazard class 
or, for Division 5.1 or 5.2 the division number, shall be displayed in 
the lower corner of a primary hazard label and may not be displayed on a 
subsidiary label.
    (c) Cargo Aircraft Only label. Each person who offers for 
transportation or transports by aircraft a package containing a 
hazardous material which is authorized on cargo aircraft only shall 
label the package with a CARGO AIRCRAFT ONLY label specified in 
Sec. 172.448 of this subpart.
    (d) Class 7 (Radioactive) Materials. Except as otherwise provided in 
this paragraph, each package containing a Class 7 material that also 
meets the definition of one or more additional hazard classes must be 
labeled as a Class 7 material as required by Sec. 172.403 of this 
subpart and for each additional hazard. A subsidiary hazard label is not 
required on a package containing a Class 7 material that conforms to 
criteria specified in Sec. 173.4 of this subchapter, except 
Sec. 173.4(a)(1)(iv) of this subchapter.
    (e) Class 1 (explosive) Materials. In addition to the label 
specified in Column 6 of the Sec. 172.101 Table, each package of Class 1 
material that also meets the definition for:
    (1) Division 6.1, Packing Groups I or II, shall be labeled POISON; 
or
    (2) Class 7, shall be labeled in accordance with Sec. 172.403 of 
this subpart.
    (f) Division 2.2 materials. In addition to the label specified in 
Column 6 of the Sec. 172.101 Table, each package of Division 2.2 
material that also meets the definition for an oxidizing gas (see 
Sec. 171.8 of this subchapter) must be labeled OXIDIZER.
    (g) Division 2.3 materials. In addition to the label specified in 
Column 6 of the Sec. 172.101 Table, each package of Division 2.3 
material that also meets the definition for:
    (1) Division 2.1, must be labeled Flammable Gas;
    (2) Division 5.1, must be labeled Oxidizer; and

[[Page 313]]

    (3) Class 8, must be labeled Corrosive.
[Amdt. 172-123, 55 FR 52594, Dec. 21, 1990, as amended at 56 FR 66255, 
Dec. 20, 1991; Amdt. 172-139, 59 FR 67490, Dec. 29, 1994; Amdt. 172-140, 
60 FR 26805, May 18, 1995; Amdt. 172-149, 61 FR 27173, May 30, 1996]

    Effective Date Note: At 62 FR 39405, July 22, 1997, 
Sec. 172.402(e)(1) was revised, effective Oct. 1, 1998. For the 
convenience of the user the revised text is set forth as follows:

Sec. 172.402  Additional labeling requirements.

                                * * * * *

    (e) * * *
    (1) Division 6.1, Packing Groups I or II, shall be labeled POISON or 
POISON INHALATION HAZARD, as appropriate.

                                * * * * *



Sec. 172.403  Class 7 (radioactive) material.

    (a) Unless excepted from labeling by Secs. 173.421 through 173.428 
of this subchapter, each package of radioactive material must be labeled 
as provided in this section.
    (b) The proper label to affix to a package of Class 7 (radioactive) 
material is based on the radiation level at the surface of the package 
and the transport index. The proper category of label must be determined 
in accordance with paragraph (c) of this section. The label to be 
applied must be the highest category required for any of the two 
determining conditions for the package. RADIOACTIVE WHITE-I is the 
lowest category and RADIOACTIVE YELLOW-III is the highest. For example, 
a package with a transport index of 0.8 and a maximum surface radiation 
level of 0.6 millisievert (60 millirems) per hour must bear a 
RADIOACTIVE YELLOW-III label.
    (c) Category of label to be applied to Class 7 (radioactive) 
materials packages:

                                                                        
------------------------------------------------------------------------
                                 Maximum radiation                      
                                 level at any point                     
        Transport index           on the external      Label category1  
                                      surface                           
------------------------------------------------------------------------
02............................  Less than or equal   WHITE-I.           
                                 to 0.005 mSv/h                         
                                 (0.5 mrem/h).                          
More than 0 but not more than   Greater than 0.005   YELLOW-II.         
 1.                              mSv/h (0.5 mrem/h)                     
                                 but less than or                       
                                 equal to 0.5 mSv/h                     
                                 (50 mrem/h).                           
More than 1 but not more than   Greater than 0.5     YELLOW-III.        
 10.                             mSv/h (50 mrem/h)                      
                                 but less than or                       
                                 equal to 2 mSv/h                       
                                 (200 mrem/h).                          
More than 10..................  Greater than 2 mSv/  YELLOW-III (Must be
                                 h (200 mrem/h) but   shipped under     
                                 less than or equal   exclusive use     
                                 to 10 mSv/h (1,000   provisions; see   
                                 mrem/h).             173.441(b) of this
                                                      subchapter).      
------------------------------------------------------------------------
1 Any package containing a ``highway route controlled quantity'' (Sec.  
  173.403 of this subchapter) must be labelled as RADIOACTIVE YELLOW-   
  III.                                                                  
2 If the measured TI is not greater than 0.05, the value may be         
  considered to be zero.                                                

    (d) EMPTY label. See Sec. 173.428(d) of this subchapter for EMPTY 
labeling requirements.
    (e) [Reserved]
    (f) Each package required by this section to be labeled with a 
RADIOACTIVE label must have two of these labels, affixed to opposite 
sides of the package. (See Sec. 172.406(e)(3) for freight container 
label requirements).
    (g) The following applicable items of information must be entered in 
the blank spaces on the RADIOACTIVE label by legible printing (manual or 
mechanical), using a durable weather resistant means of marking:
    (1) Contents. The name of the radionuclides as taken from the 
listing of radionuclides in Sec. 173.435 of this subchapter (symbols 
which conform to established radiation protection terminology are 
authorized, i.e., \99\Mo, \60\Co, etc.). For mixtures of radionuclides, 
with consideration of space available on the label, the radionuclides 
that must be shown must be determined in accordance with Sec. 173.433(f) 
of this subchapter.
    (2) Activity. Activity units must be expressed in appropriate SI 
units (e.g., Becquerels (Bq), Terabecquerels (TBq), etc.) or in both 
appropriate SI units and appropriate customary units (Curies (Ci), 
milliCuries (mCi), microcuries (uCi), etc.). Alternatively, for domestic 
transport the activity may be

[[Page 314]]

expressed solely in terms of curies until April 1, 1997. Abbreviations 
are authorized. Except for plutonium-238, plutonium-239, and plutonium-
241, the weight in grams or kilograms of fissile radionuclides may be 
inserted instead of activity units. For plutonium-238, plutonium-239, 
and plutonium-241, the weight in grams or kilograms of fissile 
radionuclides may be inserted in addition to the activity units.
    (3) Transport index. (See Sec. 173.403 of this subchapter.)
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-29A, 
41 FR 40679, Sept. 20, 1976; Amdt. 172-78, 48 FR 10226, Mar. 10, 1983; 
48 FR 13431, Mar. 31, 1983; 48 FR 31217, July 7, 1983; Amdt. 172-85, 48 
FR 50459, Nov. 1, 1983; Amdt. 172-114, 53 FR 38274, Sept. 29, 1988; 
Amdt. 172-123, 55 FR 52594, Dec. 21, 1990; Amdt. 172-143, 60 FR 50305, 
Sept. 28, 1995; Amdt. 172-143, 61 FR 20750, May 8, 1996]



Sec. 172.404  Labels for mixed and consolidated packaging.

    (a) Mixed packaging. When hazardous materials having different 
hazard classes are packed within the same packaging, or within the same 
outside container or overpack as described in Sec. 173.25 and authorized 
by Sec. 173.21 of this subchapter, the packaging, outside container or 
overpack must be labeled as required for each class of hazardous 
material contained therein.
    (b) Consolidated packaging. When two or more packages containing 
compatible hazardous material (see Sec. 173.21 of this subchapter) are 
placed within the same outside container or overpack, the outside 
container or overpack must be labeled as required for each class of 
hazardous material contained therein.



Sec. 172.405  Authorized label modifications.

    (a) For Classes 1, 2, 3, 4, 5, 6, and 8, text indicating a hazard 
(for example FLAMMABLE LIQUID) is not required on a primary or 
subsidiary label when--
    (1) The label otherwise conforms to the provisions of this subpart, 
and
    (2) The hazard class or, for Division 5.1 or 5.2 the division 
number, is displayed in the lower corner of the label, if the label 
corresponds to the primary hazard class of the hazardous material.
    (b) For a package containing Oxygen, compressed, or Oxygen, 
refrigerated liquid, the OXIDIZER label specified in Sec. 172.426 of 
this subpart, modified to display the word ``OXYGEN'' instead of 
``OXIDIZER'', and the class number ``2'' instead of ``5.1'', may be used 
in place of the NON-FLAMMABLE GAS and OXIDIZER labels. Notwithstanding 
the provisions of paragraph (a) of this section, the word ``OXYGEN'' 
must appear on the label.
[Amdt. 172-123, 55 FR 52594, Dec. 21, 1990, as amended at 56 FR 66255, 
Dec. 20, 1991; 57 FR 45458, Oct. 1, 1992]



Sec. 172.406  Placement of labels.

    (a) General. (1) Except as provided in paragraphs (b) and (e) of 
this section, each label required by this subpart must--
    (i) Be printed on or affixed to a surface (other than the bottom) of 
the package or containment device containing the hazardous material; and
    (ii) Be located on the same surface of the package and near the 
proper shipping name marking, if the package dimensions are adequate.
    (2) Except as provided in paragraph (e) of this section, duplicate 
labeling is not required on a package or containment device (such as to 
satisfy redundant labeling requirements).
    (b) Exceptions. A label may be printed on or placed on a securely 
affixed tag, or may be affixed by other suitable means to:
    (1) A package that contains no radioactive material and which has 
dimensions less than those of the required label;
    (2) A cylinder; and
    (3) A package which has such an irregular surface that a label 
cannot be satisfactorily affixed.
    (c) Placement of multiple labels. When primary and subsidiary hazard 
labels are required, they must be displayed next to each other. 
Placement conforms to this requirement if labels are within 150 mm (6 
inches) of one another.
    (d) Contrast with background. Each label must be printed on or 
affixed to a background of contrasting color, or must have a dotted or 
solid line outer border.
    (e) Duplicate labeling. Generally, only one of each different 
required label

[[Page 315]]

must be displayed on a package. However, duplicate labels must be 
displayed on at least two sides or two ends (other than the bottom) of--
    (1) Each package or overpack having a volume of 1.8 m \3\ (64 cubic 
feet) or more;
    (2) Each non-bulk package containing a radioactive material;
    (3) Each DOT 106 or 110 multi-unit tank car tank. Labels must be 
displayed on each end;
    (4) Each portable tank of less than 3,785 L (1000 gallons) capacity; 
and
    (5) Each freight container or aircraft unit load device having a 
volume of 1.8 m \3\ (64 cubic feet) or more, but less than 18 m \3\ (640 
cubic feet). One of each required label must be displayed on or near the 
closure.
    (f) Visibility. A label must be clearly visible and may not be 
obscured by markings or attachments.
[Amdt. 172-123, 55 FR 52594, Dec. 21, 1990, as amended at 56 FR 66255, 
Dec. 20, 1991; Amdt. 172-130, 58 FR 51531, Oct. 1, 1993]



Sec. 172.407  Label specifications.

    (a) Durability. Each label, whether printed on or affixed to a 
package, must be durable and weather resistant. A label on a package 
must be able to withstand, without deterioration or a substantial change 
in color, a 30-day exposure to conditions incident to transportation 
that reasonably could be expected to be encountered by the labeled 
package.
    (b) Design. (1) Except for size and color, the printing, inner 
border, and symbol on each label must be as shown in Secs. 172.411 
through 172.448 of this subpart, as appropriate.
    (2) The dotted line border shown on each label is not part of the 
label specification, except when used as an alternative for the solid 
line outer border to meet the requirements of Sec. 172.406(d) of this 
subpart.
    (c) Size. (1) Each diamond (square-on-point) label prescribed in 
this subpart must be at least 100 mm (3.9 inches) on each side with each 
side having a solid line inner border 5.0 to 6.3 mm (0.2 to 0.25 inches) 
from the edge.
    (2) The CARGO AIRCRAFT ONLY label must be a rectangle measuring at 
least 110 mm (4.3 inches) in height by 120 mm (4.7 inches) in width. The 
word ``DANGER'' must be shown in letters measuring at least 12.7 mm (0.5 
inches) in height.
    (3) Except as otherwise provided in this subpart, the hazard class 
number, or division number, as appropriate, must be at least 6.3 mm 
(0.25 inches) and not greater than 12.7 mm (0.5 inches).
    (4) When text indicating a hazard is displayed on a label, the label 
name must be shown in letters measuring at least 7.6 mm (0.3 inches) in 
height except that--
    (i) For a SPONTANEOUSLY COMBUSTIBLE or DANGEROUS WHEN WET label, 
respectively, the words ``Spontaneously'' and ``When Wet'' must be shown 
in letters measuring at least 5.1 mm (0.2 inches) in height.
    (ii) For a KEEP AWAY FROM FOOD label, the word ``HARMFUL'' must be 
shown in letters measuring at least 7.6 mm (0.3 inches) in height.
    (5) The symbol on each label must be proportionate in size to that 
shown in the appropriate section of this subpart.
    (d) Color. (1) The background color on each label must be as 
prescribed in Secs. 172.411 through 172.448 of this subpart, as 
appropriate.
    (2) The symbol, text, numbers, and border must be shown in black on 
a label except that--
    (i) White may be used on a label with a one color background of 
green, red or blue; and
    (ii) White must be used for the text and class number for the 
CORROSIVE label.
    (3) Black and any color on a label must be able to withstand, 
without substantial change, a 72-hour fadeometer test (for a description 
of equipment designed for this purpose, see ASTM G 23-69 (1975) or ASTM 
G 26-70).
    (4) (i) A color on a label, upon visual examination, must fall 
within the color tolerances--
    (A) Displayed on color charts conforming to the technical 
specifications for charts set forth in Table 1 or 2 in appendix A to 
this part; or
    (B) For labels printed on packaging surfaces, specified in Table 3 
in appendix A to this part.
    (ii) Color charts conforming to appendix A to this part are on 
display in

[[Page 316]]

Room 8421, Nassif Building, 400 Seventh Street, SW., Washington DC 
20590-0001.
    (5) The specified label color must extend to the edge of the label 
in the area designated on each label except the CORROSIVE, RADIOACTIVE 
YELLOW-II AND RADIOACTIVE YELLOW-III labels on which the color must 
extend only to the inner border.
    (e) Form identification. A label may contain form identification 
information, including the name of its maker, provided that information 
is printed outside the solid line inner border in no larger than 10-
point type.
    (f) Exceptions. A label conforming to specifications in the UN 
Recommendations may be used in place of a corresponding label which 
conforms to the requirements of this subpart.
    (g) Trefoil symbol. The trefoil symbol on the RADIOACTIVE WHITE-I, 
RADIOACTIVE YELLOW-II, and RADIOACTIVE YELLOW-III labels must meet the 
appropriate specifications in Appendix B of this part.
[Amdt. 172-123, 55 FR 52595, Dec. 21, 1990, as amended at 56 FR 66256, 
Dec. 20, 1991; Amdt. 172-143, 60 FR 50305, Sept. 28, 1995]



Sec. 172.411  EXPLOSIVE 1.1, 1.2, 1.3, 1.4, 1.5 and 1.6 labels, and EXPLOSIVE Subsidiary label.

    (a) Except for size and color, the EXPLOSIVE 1.1, EXPLOSIVE 1.2 and 
EXPLOSIVE 1.3 labels must be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.015

    (b) In addition to complying with Sec. 172.407, the background color 
on the EXPLOSIVE 1.1, EXPLOSIVE 1.2 and EXPLOSIVE 1.3 labels must be 
orange. The ``**'' shall be replaced with the appropriate division 
number and compatibility group. The compatibility group letter must be 
the same size as the division number and must be shown as a capitalized 
Roman letter.
    (c) Except for size and color, the EXPLOSIVE 1.4, EXPLOSIVE 1.5, 
EXPLOSIVE 1.6 labels, and EXPLOSIVE Subsidiary label must be as follows:

                             EXPLOSIVE 1.4:
[GRAPHIC] [TIFF OMITTED] TC02MR91.016

                             EXPLOSIVE 1.5:
[GRAPHIC] [TIFF OMITTED] TC02MR91.017


[[Page 317]]



                             EXPLOSIVE 1.6:
[GRAPHIC] [TIFF OMITTED] TC02MR91.018

                       EXPLOSIVE Subsidiary label:
[GRAPHIC] [TIFF OMITTED] TC02MR91.019

    (d) In addition to complying with Sec. 172.407, the background color 
on the EXPLOSIVE 1.4, EXPLOSIVE 1.5, EXPLOSIVE 1.6, and EXPLOSIVE 
Subsidiary label must be orange. Except for the EXPLOSIVE subsidiary 
label, the ``*'' shall be replaced with the appropriate compatibility 
group. The compatibility group letter must be shown as a capitalized 
Roman letter. Except for the EXPLOSIVE subsidiary label, division 
numerals must measure at least 30 mm (1.2 inches) in height and at least 
5 mm (0.2 inches) in width.
[Amdt. 172-123, 56 FR 66256, Dec. 20, 1991, as amended by Amdt. 172-139, 
59 FR 67490, Dec. 29, 1994]



Sec. 172.415  NON-FLAMMABLE GAS Label.

    (a) Except for size and color, the NON-FLAMMABLE GAS label must be 
as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.020

    (b) In addition to complying with Sec. 172.407, the background color 
on the NON-FLAMMABLE GAS label must be green.
[Amdt. 172-123, 56 FR 66256, Dec. 20, 1991]



Sec. 172.416  POISON GAS label.

    (a) Except for size and color, the POISON GAS label must be as 
follows:

[[Page 318]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.021

    (b) In addition to complying with Sec. 172.407, the background on 
the POISON GAS label must be white. The words ``TOXIC GAS'' may be used 
in lieu of the words ``POISON GAS''.
[Amdt. 172-123, 56 FR 66257, Dec. 20, 1991, as amended by Amdt. 172-139. 
59 FR 67490, Dec. 29, 1994]

    Effective Date Note: At 62 FR 39405, July 22, 1997, Sec. 172.416 was 
revised, effective Oct. 1, 1998. For the convenience of the user the 
revised text is set forth as follows:

Sec. 172.416  POISON GAS label.

    (a) Except for size and color, the POISON GAS label must be as 
follows:

[GRAPHIC] [TIFF OMITTED] TR22JY97.022


[[Page 319]]


    (b) In addition to complying with Sec. 172.407, the background on 
the POISON GAS label and the symbol must be white. The background of the 
upper diamond must be black and the lower point of the upper diamond 
must be 14 mm (0.54 inches) above the horizontal center line.
[62 FR 39405, July 22, 1997]



Sec. 172.417  FLAMMABLE GAS label.

    (a) Except for size and color, the FLAMMABLE GAS label must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.022

    (b) In addition to complying with Sec. 172.407, the background color 
on the FLAMMABLE GAS label must be red.
[Amdt. 172-123, 56 FR 66257, Dec. 20, 1991]



Sec. 172.419  FLAMMABLE LIQUID label.

    (a) Except for size and color the FLAMMABLE LIQUID label must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.023

    (b) In addition to complying with Sec. 172.407, the background color 
on the FLAMMABLE LIQUID label must be red.
[Amdt. 172-123, 56 FR 66257, Dec. 20, 1991]



Sec. 172.420  FLAMMABLE SOLID label.

    (a) Except for size and color, the FLAMMABLE SOLID label must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.024

    (b) In addition to complying with Sec. 172.407, the background on 
the FLAMMABLE SOLID label must be white with vertical red stripes 
equally spaced on each side of a red stripe placed in the center of the 
label. The red vertical stripes must be spaced so that, visually, they 
appear equal in width to the white spaces between them. The

[[Page 320]]

symbol (flame) and text (when used) must be overprinted. The text 
``FLAMMABLE SOLID'' may be placed in a white rectangle.
[Amdt. 172-123, 56 FR 66257, Dec. 20, 1991]



Sec. 172.422  SPONTANEOUSLY COMBUSTIBLE label.

    (a) Except for size and color, the SPONTANEOUSLY COMBUSTIBLE label 
must be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.025

    (b) In addition to complying with Sec. 172.407, the background color 
on the lower half of the SPONTANEOUSLY COMBUSTIBLE label must be red and 
the upper half must be white.
[Amdt. 172-123, 56 FR 66257, Dec. 20, 1991, as amended at 57 FR 45458, 
Oct. 1, 1992]



Sec. 172.423  DANGEROUS WHEN WET label.

    (a) Except for size and color, the DANGEROUS WHEN WET label must be 
as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.026

    (b) In addition to complying with Sec. 172.407, the background color 
on the DANGEROUS WHEN WET label must be blue.
[Amdt. 172-123, 56 FR 66257, Dec. 20, 1991]



Sec. 172.426  OXIDIZER label.

    (a) Except for size and color, the OXIDIZER label must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.027

    (b) In addition to complying with Sec. 172.407, the background color 
on the OXIDIZER label must be yellow.
[Amdt. 172-123, 56 FR 66257, Dec. 20, 1991]



Sec. 172.427  ORGANIC PEROXIDE label.

    (a) Except for size and color, the ORGANIC PEROXIDE label must be as 
follows:

[[Page 321]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.028

    (b) In addition to complying with Sec. 172.407, the background color 
on the ORGANIC PEROXIDE label must be yellow.
[Amdt. 172-123, 56 FR 66258, Dec. 20, 1991]



Sec. 172.429  POISON INHALATION HAZARD label.

    (a) Except for size and color, the POISON INHALATION HAZARD label 
must be as follows:
[GRAPHIC] [TIFF OMITTED] TR22JY97.023


[[Page 322]]


    (b) In addition to complying with Sec. 172.407, the background on 
the POISON INHALATION HAZARD label and the symbol must be white. The 
background of the upper diamond must be black and the lower point of the 
upper diamond must be 14 mm (0.54 inches) above the horizontal center 
line.
[62 FR 39406, July 22, 1997]

    Effective Date Note: At 62 FR 39406, July 22, 1997, Sec. 172.429, as 
added by Amdt. 172-151, 62 FR 1229, Jan. 8, 1997, effective Oct. 1, 1998 
was revised, effective Oct. 1, 1998.



Sec. 172.430  POISON label.

    (a) Except for size and color, the POISON label must be as follows:
    [GRAPHIC] [TIFF OMITTED] TC02MR91.029
    
    (b) In addition to complying with Sec. 172.407, the background on 
the POISON label must be white. The word ``TOXIC'' may be used in lieu 
of the word ``POISON''.
[Amdt. 172-123, 56 FR 66258, Dec. 20, 1991, as amended by Amdt. 172-139, 
59 FR 67490, Dec. 29, 1994]



Sec. 172.431  KEEP AWAY FROM FOOD label.

    (a) Except for size and color, the KEEP AWAY FROM FOOD label must be 
as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.030

    (b) In addition to complying with Sec. 172.407, the background on 
the KEEP AWAY FROM FOOD label must be white.
[Amdt. 172-123, 56 FR 66258, Dec. 20, 1991]



Sec. 172.432  INFECTIOUS SUBSTANCE label.

    (a) Except for size and color, the INFECTIOUS SUBSTANCE label must 
be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.031

    (b) In addition to complying with Sec. 172.407, the background on 
the INFECTIOUS SUBSTANCE label must be white.
[Amdt. 172-123, 56 FR 66258, Dec. 20, 1991]

[[Page 323]]



Sec. 172.436  RADIOACTIVE WHITE-I label.

    (a) Except for size and color, the RADIOACTIVE WHITE-I label must be 
as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.032

    (b) In addition to complying with Sec. 172.407, the background on 
the RADIOACTIVE WHITE-I label must be white. The printing and symbol 
must be black, except for the ``I'' which must be red.
[Amdt. 172-123, 56 FR 66259, Dec. 20, 1991]



Sec. 172.438  RADIOACTIVE YELLOW-II label.

    (a) Except for size and color, the RADIOACTIVE YELLOW-II must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.033

    (b) In addition to complying with Sec. 172.407, the background color 
on the RADIOACTIVE YELLOW-II label must be yellow in the top half and 
white in the lower half. The printing and symbol must be black, except 
for the ``II'' which must be red.
[Amdt. 172-123, 56 FR 66259, Dec. 20, 1991]



Sec. 172.440  RADIOACTIVE YELLOW-III label.

    (a) Except for size and color, the RADIOACTIVE YELLOW-III label must 
be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.034

    (b) In addition to complying with Sec. 172.407, the background color 
on the RADIOACTIVE YELLOW-III label must be yellow in the top half and 
white in the lower half. The printing and symbol must be black, except 
for the ``III'' which must be red.
[Amdt. 172-123, 56 FR 66259, Dec. 20, 1991]



Sec. 172.442  CORROSIVE label.

    (a) Except for size and color, the CORROSIVE label must be as 
follows:

[[Page 324]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.035

    (b) In addition to complying with Sec. 172.407, the background on 
the CORROSIVE label must be white in the top half and black in the lower 
half.
[Amdt. 172-123, 56 FR 66259, Dec. 20, 1991]



Sec. 172.444  [Reserved]



Sec. 172.446  CLASS 9 label.

    (a) Except for size and color, the ``CLASS 9'' (miscellaneous 
hazardous materials) label must be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.036

    (b) In addition to complying with Sec. 172.407, the background on 
the CLASS 9 label must be white with seven black vertical stripes on the 
top half. The black vertical stripes must be spaced, so that, visually, 
they appear equal in width to the six white spaces between them. The 
lower half of the label must be white with the class number ``9'' 
underlined and centered at the bottom.
[Amdt. 172-123, 56 FR 66259, Dec. 20, 1991]



Sec. 172.448  CARGO AIRCRAFT ONLY label.

    (a) Except for size and color, the CARGO AIRCRAFT ONLY label must be 
as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.037

      

[[Page 325]]

    (b) The CARGO AIRCRAFT ONLY label must be black on an orange 
background.
[Amdt. 172-123, 56 FR 66259, Dec. 20, 1991]



Sec. 172.450  EMPTY label.

    (a) Each EMPTY label, except for size, must be as follows:
    [GRAPHIC] [TIFF OMITTED] TC02MR91.038
    
    (1) Each side must be at least 6 inches (152 mm.) with each letter 
at least 1 inch (25.4 mm.) in height.
    (2) The label must be white with black printing.
    (b) [Reserved]



                          Subpart F--Placarding



Sec. 172.500  Applicability of placarding requirements.

    (a) Each person who offers for transportation or transports any 
hazardous material subject to this subchapter shall comply with the 
applicable placarding requirements of this subpart.
    (b) This subpart does not apply to--
    (1) Infectious substances;
    (2) Hazardous materials classed as ORM-D;
    (3) Hazardous materials authorized by this subchapter to be offered 
for transportation as Limited Quantities when identified as such on 
shipping papers in accordance with Sec. 172.203(b);
    (4) Hazardous materials prepared in accordance with Sec. 173.13 of 
this subchapter;
    (5) Hazardous materials which are packaged as small quantities under 
the provisions of Sec. 173.4 of this subchapter; and
    (6) Combustible liquids in non-bulk packagings.
[Amdt. 172-123, 55 FR 52599, Dec. 21, 1990, as amended by Amdt. 172-149, 
61 FR 27173, May 30, 1996]



Sec. 172.502  Prohibited and permissive placarding.

    (a) Prohibited placarding. Except as provided in paragraph (b) of 
this section, no person may affix or display on a packaging, freight 
container, unit load device, motor vehicle or rail car--
    (1) Any placard described in this subpart unless--
    (i) The material being offered or transported is a hazardous 
material;
    (ii) The placard represents a hazard of the hazardous material being 
offered or transported; and
    (iii) Any placarding conforms to the requirements of this subpart.
    (2) Any sign or other device that, by its color, design, shape or 
content, could be confused with any placard prescribed in this subpart.
    (b) Exceptions. (1) The restrictions in paragraph (a) of this 
section do not apply to a bulk packaging, freight container, unit load 
device, transport vehicle or rail car which is placarded in conformance 
with the TDG Regulations, the IMDG Code or the UN Recommendations.
    (2) The restrictions of paragraph (a) of this section do not apply 
to the display of an identification number on a white square-on-point 
configuration in accordance with Sec. 172.336(b) of this part.
    (3) The restrictions in paragraph (a)(2) of this section do not 
apply until October 1, 2001 to a safety sign or safety slogan (e.g., 
``Drive Safely'' or ``Drive Carefully''), which was permanently marked 
on a transport vehicle, bulk packaging, or freight container on or 
before August 21, 1997.
    (c) Permissive placarding. Placards may be displayed for a hazardous 
material, even when not required, if the placarding otherwise conforms 
to the requirements of this subpart.
[Amdt. 172-123, 55 FR 52599, Dec. 21, 1990, as amended at 56 FR 66259, 
Dec. 20, 1991; Amdt. 172-151, 62 FR 1230, Jan. 8, 1997; 62 FR 39389 and 
39407, July 22, 1997]

[[Page 326]]


    Effective Date Note: By Amdt. 172-151, 62 FR 1230, Jan. 8, 1997, in 
Sec. 172.502, paragraph (a)(2) was revised and paragraph (b)(3) was 
added, effective Oct. 1, 1997. At 62 FR 39389 and 39407, July 22, 1997, 
the effective date was delayed until Oct. 1, 1998 and paragraph (b)(3) 
was revised. For the convenience of the user revised paragraph (a)(2) is 
set forth as follows:

Sec. 172.502  Prohibited and permissive placarding.

    (a) * * *
    (2) Any sign, advertisement, slogan (such as ``Drive Safely''), or 
device that, by its color, design, shape or content, could be confused 
with any placard prescribed in this subpart.

                                * * * * *



Sec. 172.503  Identification number display on placards.

    For procedures and limitations pertaining to the display of 
identification numbers on placards, see Sec. 172.334.
[Amdt. 172-58, 45 FR 34701, May 22, 1980]



Sec. 172.504  General placarding requirements.

    (a) General. Except as otherwise provided in this subchapter, each 
bulk packaging, freight container, unit load device, transport vehicle 
or rail car containing any quantity of a hazardous material must be 
placarded on each side and each end with the type of placards specified 
in Tables 1 and 2 of this section and in accordance with other 
placarding requirements of this subpart, including the specifications 
for the placards named in the tables and described in detail in 
Secs. 172.519 through 172.560.
    (b) DANGEROUS placard. A freight container, unit load device, 
transport vehicle or rail car which contains non-bulk packagings with 
two or more categories of hazardous materials that require different 
placards specified in Table 2 may be placarded with DANGEROUS placards 
instead of the separate placarding specified for each of the materials 
in Table 2. However, when 2,268 kg (5,000 pounds) or more of one 
category of material is loaded therein at one loading facility, the 
placard specified in Table 2 of paragraph (e) of this section for that 
category must be applied.
    (c) Exception for less than 454 kg (1,001 pounds). Except for bulk 
packagings and hazardous materials subject to Sec. 172.505, when 
hazardous materials covered by Table 2 of this section are transported 
by highway or rail, placards are not required on--
    (1) A transport vehicle or freight container which contains less 
than 454 kg (1001 pounds) aggregate gross weight of hazardous materials 
covered by Table 2 of paragraph (e) of this section; or
    (2) A rail car loaded with transport vehicles or freight containers, 
none of which is required to be placarded.

The exceptions provided in paragraph (c) of this section do not prohibit 
the display of placards in the manner prescribed in this subpart, if not 
otherwise prohibited (see Sec. 172.502), on transport vehicles or 
freight containers which are not required to be placarded.
    (d) Exception for empty non-bulk packages. A non-bulk packaging that 
contains only the residue of a hazardous material covered by Table 2 of 
paragraph (e) of this section need not be included in determining 
placarding requirements.
    (e) Placarding tables. Placards are specified for hazardous 
materials in accordance with the following tables:

                                 Table 1                                
------------------------------------------------------------------------
 Category of material (Hazard                                           
 class or division number and                            Placard design 
  additional description, as         Placard name      section reference
         appropriate)                                       (Sec. )     
------------------------------------------------------------------------
1.1...........................  EXPLOSIVES 1.1.......            172.522
1.2...........................  EXPLOSIVES 1.2.......            172.522
1.3...........................  EXPLOSIVES 1.3.......            172.522
2.3...........................  POISON GAS...........            172.540
4.3...........................  DANGEROUS WHEN WET...            172.548
6.1 (PG I, inhalation hazard    POISON...............            172.554
 only).                                                                 
7 (Radioactive Yellow III       RADIOACTIVE \1\......            172.556
 label only).                                                           
                                                                        
------------------------------------------------------------------------
\1\ RADIOACTIVE placard also required for exclusive use shipments of low
  specific activity material and surface contaminated objects           
  transported in accordance with Sec.  173.427(b)(3) or (c) of this     
  subchapter.                                                           

[[Page 327]]

                                                                        


                                 Table 2                                
------------------------------------------------------------------------
 Category of material (Hazard                                           
 class or division number and                            Placard design 
  additional description, as         Placard name      section reference
         appropriate)                                       (Sec. )     
------------------------------------------------------------------------
1.4...........................  EXPLOSIVES 1.4.......            172.523
1.5...........................  EXPLOSIVES 1.5.......            172.524
1.6...........................  EXPLOSIVES 1.6.......            172.525
2.1...........................  FLAMMABLE GAS........            172.532
2.2...........................  NON-FLAMMABLE GAS....            172.528
3.............................  FLAMMABLE............            172.542
Combustible liquid............  COMBUSTIBLE..........            172.544
4.1...........................  FLAMMABLE SOLID......            172.546
4.2...........................  SPONTANEOUSLY                    172.547
                                 COMBUSTIBLE.                           
5.1...........................  OXIDIZER.............            172.550
5.2...........................  ORGANIC PEROXIDE.....            172.552
6.1 (PG I or II, other than PG  POISON...............            172.554
 I inhalation hazard).                                                  
6.1 (PG III)..................  KEEP AWAY FROM FOOD..            172.553
6.2...........................  (None)...............  .................
8.............................  CORROSIVE............            172.558
9.............................  CLASS 9..............            172.560
ORM-D.........................  (None)...............  .................
------------------------------------------------------------------------

    (f) Additional placarding exceptions. (1) When more than one 
division placard is required for Class 1 materials on a transport 
vehicle, rail car, freight container or unit load device, only the 
placard representing the lowest division number must be displayed.
    (2) A FLAMMABLE placard may be used in place of a COMBUSTIBLE 
placard on--
    (i) A cargo tank or portable tank.
    (ii) A compartmented tank car which contains both flammable and 
combustible liquids.
    (3) A NON-FLAMMABLE GAS placard is not required on a transport 
vehicle which contains non-flammable gas if the transport vehicle also 
contains flammable gas or oxygen and it is placarded with FLAMMABLE GAS 
or OXYGEN placards, as required.
    (4) OXIDIZER placards are not required for Division 5.1 materials on 
freight containers, unit load devices, transport vehicles or rail cars 
which also contain Division 1.1 or 1.2 materials and which are placarded 
with EXPLOSIVES 1.1 or 1.2 placards, as required.
    (5) For transportation by transport vehicle or rail car only, an 
OXIDIZER placard is not required for Division 5.1 materials on a 
transport vehicle, rail car or freight container which also contains 
Division 1.5 explosives and is placarded with EXPLOSIVES 1.5 placards, 
as required.
    (6) The EXPLOSIVE 1.4 placard is not required for those Division 1.4 
Compatibility Group S (1.4S) materials that are not required to be 
labeled 1.4S.
    (7) For domestic transportation of oxygen, compressed or oxygen, 
refrigerated liquid, the OXYGEN placard in Sec. 172.530 of this subpart 
may be used in place of a NON-FLAMMABLE GAS placard.
    (8) Except for a material classed as a combustible liquid that also 
meets the definition of a Class 9 material, a COMBUSTIBLE placard is not 
required for a material classed as a combustible liquid when transported 
in a non-bulk packaging.
    (9) For domestic transportation, a Class 9 placard is not required. 
A bulk packaging containing a Class 9 material must be marked with the 
appropriate identification number displayed on a Class 9 placard, an 
orange panel or a white-square-on-point display configuration as 
required by subpart D of this part.
    (10) For domestic transportation of Division 6.1, PG III materials, 
a POISON placard may be used in place of a KEEP AWAY FROM FOOD placard.
    (11) For domestic transportation, a POISON placard is not required 
on a transport vehicle or freight container required to display a POISON 
INHALATION HAZARD or POISON GAS placard.
    (g) For shipments of Class 1 (explosive) materials by aircraft or 
vessel,

[[Page 328]]

the applicable compatibility group letter must be displayed on the 
placards required by this section.
[Amdt. 172-123, 55 FR 52600, Dec. 21, 1990, as amended at 56 FR 66260, 
Dec. 20, 1991; 57 FR 45460, Oct. 1, 1992; Amdt. 172-123, 57 FR 59310, 
Dec. 15, 1992; Amdt. 172-143, 60 FR 50305, Sept. 28, 1995; Amdt. 172-
150, 61 FR 50624, Sept. 26, 1996; Amdt. 172-151, 62 FR 1230, Jan. 8, 
1997; 62 FR 39398 and 39407, July 22, 1997]

    Effective Date Note: By Amdt. 172-151, 62 FR 1230, Jan. 8, 1997, in 
Sec. 172.504, paragraph (f)(11) was added, and paragraphs (b) and (e) 
were revised, effective Oct. 1, 1997. At 62 FR 39398 and 39407, July 22, 
1997, the effective date was delayed until Oct. 1, 1998 and revised 
paragraph (e) was amended by revising the entries for Division 6.1 
materials in Tables 1 and 2, effective Oct. 1, 1998. For the convenience 
of the user, the revised text is set forth as follows:

Sec. 172.504  General placarding requirements.

                                * * * * *

    (b) DANGEROUS placard. A freight container, unit load device, 
transport vehicle, or rail car which contains non-bulk packages with two 
or more categories of hazardous materials that require different 
placards specified in Table 2 of paragraph (e) of this section may be 
placarded with a DANGEROUS placard instead of the separate placarding 
specified for each of the materials in Table 2 of paragraph (e) of this 
section. However, when 1,000 kg (2,205 pounds) aggregate gross weight or 
more of one category of material is loaded therein at one loading 
facility on a freight container, unit load device, transport vehicle, or 
rail car, the placard specified in Table 2 of paragraph (e) of this 
section for that category must be applied.

                                * * * * *

    (e) Placarding tables. Placards are specified for hazardous 
materials in accordance with the following tables:

                                 Table 1                                
------------------------------------------------------------------------
                                                               Placard  
   Category of material (Hazard                                 design  
   class or division number and          Placard name          section  
    additional description, as                                reference 
           appropriate)                                        (Sec.  ) 
------------------------------------------------------------------------
1.1..............................  EXPLOSIVES 1.1..........      172.522
1.2..............................  EXPLOSIVES 1.2..........      172.522
1.3..............................  EXPLOSIVES 1.3..........      172.522
2.3..............................  POISON GAS..............      172.540
4.3..............................  DANGEROUS WHEN WET......      172.548
5.2 (Organic peroxide, Type B,     ORGANIC PEROXIDE........      172.552
 liquid or solid, temperature                                           
 controlled).                                                           
6.1 (inhalation hazard, Zone A or  POISON INHALATION HAZARD      172.555
 B).                                                                    
7 (Radioactive Yellow III label    RADIOACTIVE \1\.........      172.556
 only).                                                                 
------------------------------------------------------------------------
\1\ RADIOACTIVE placard also required for exclusive use shipments of low
  specific activity material in accordance with Sec.  173.425 (b) or (c)
  of this subchapter.                                                   


                                 Table 2                                
------------------------------------------------------------------------
                                                               Placard  
   Category of material (Hazard                                 design  
   class or division number and          Placard name          section  
    additional description, as                                reference 
           appropriate)                                        (Sec.  ) 
------------------------------------------------------------------------
1.4..............................  EXPLOSIVES 1.4..........      172.523
1.5..............................  EXPLOSIVES 1.5..........      172.524
1.6..............................  EXPLOSIVES 1.6..........      172.525
2.1..............................  FLAMMABLE GAS...........      172.532
2.2..............................  NON-FLAMMABLE GAS.......      172.528
3................................  FLAMMABLE...............      172.542
Combustible liquid...............  COMBUSTIBLE.............      172.544
4.1..............................  FLAMMABLE SOLID.........      172.546
4.2..............................  SPONTANEOUSLY                 172.547
                                    COMBUSTIBLE.                        
5.1..............................  OXIDIZER................      172.550
5.2 (Other than organic peroxide,  ORGANIC PEROXIDE........      172.552
 Type B, liquid or solid,                                               
 temperature controlled).                                               
6.1 (PG I or II, other than PG I   POISON..................      172.554
 inhalation hazard).                                                    
6.1 (PG I or II, other than Zone   POISON..................      172.554
 A or B inhalation hazard).                                             
6.1 (PG III).....................  KEEP AWAY FROM FOOD.....      172.553
6.2..............................  (None)..................  ...........
8................................  CORROSIVE...............      172.558
9................................  CLASS 9.................      172.560

[[Page 329]]

                                                                        
ORM-D............................  (None)..................  ...........
------------------------------------------------------------------------

                                * * * * *



Sec. 172.505  Placarding for subsidiary hazards.

    (a) Each transport vehicle, freight container, portable tank or unit 
load device that contains a poisonous material subject to the ``Poison-
Inhalation Hazard'' shipping description of Sec. 172.203(m)(3) must be 
placarded with a POISON or POISON GAS placard, as appropriate, on each 
side and each end, in addition to any other placard required for that 
material in Sec. 172.504. Duplication of the POISON or POISON GAS 
placard is not required.
    (b) In addition to the RADIOACTIVE placard which may be required by 
Sec. 172.504(e) of this subpart, each transport vehicle, portable tank 
or freight container that contains 454 kg (1001 pounds) or more gross 
weight of fissile or low specific activity uranium hexafluoride shall be 
placarded with a CORROSIVE placard on each side and each end.
    (c) Each transport vehicle, portable tank, freight container or unit 
load device that contains a material which has a subsidiary hazard of 
being dangerous when wet, as defined in Sec. 173.124 of this subchapter, 
shall be placarded with DANGEROUS WHEN WET placards, on each side and 
each end, in addition to the placards required by Sec. 172.504.
    (d) Hazardous materials that possess secondary hazards may exhibit 
subsidiary placards that correspond to the placards described in this 
part, even when not required by this part (see also Sec. 172.519(b) (4) 
of this subpart).
[Amdt. 172-123, 55 FR 52601, Dec. 21, 1990, as amended at 56 FR 66260, 
Dec. 20, 1991; 57 FR 45460, Oct. 1, 1992; Amdt. 172-127, 59 FR 49133, 
Sept. 26, 1994; Amdt. 172-151, 62 FR 1231, Jan. 8, 1997; 62 FR 39398, 
July 22, 1997]

    Effective Date Note: By Amdt. 172-151, 62 FR 1231. Jan. 8, 1997, 
Sec. 172.505(a) was revised, effective Oct. 1, 1997. At 62 FR 39398, 
July 22, 1997, the effective date was delayed until Oct. 1, 1998. For 
the convenience of the user the revised text is set forth as follows:

Sec. 172.505  Placarding for subsidiary hazards.

    (a) Each transport vehicle, freight container, portable tank, unit 
load device, or rail car that contains a poisonous material subject to 
the ``Poison Inhalation Hazard'' shipping description of 
Sec. 172.203(m)(3) must be placarded with a POISON INHALATION HAZARD or 
POISON GAS placard, as appropriate, on each side and each end, in 
addition to any other placard required for that material in 
Sec. 172.504. Duplication of the POISON INHALATION HAZARD or POISON GAS 
placard is not required.

                                * * * * *



Sec. 172.506  Providing and affixing placards: Highway.

    (a) Each person offering a motor carrier a hazardous material for 
transportation by highway shall provide to the motor carrier the 
required placards for the material being offered prior to or at the same 
time the material is offered for transportation, unless the carrier's 
motor vehicle is already placarded for the material as required by this 
subpart.
    (1) No motor carrier may transport a hazardous material in a motor 
vehicle, unless the placards required for the hazardous material are 
affixed thereto as required by this subpart.
    (2) [Reserved]
    (b) [Reserved]
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-29A, 
41 FR 40679, Sept. 20, 1976]



Sec. 172.507  Special placarding provisions: Highway.

    (a) Each motor vehicle used to transport a package of highway route 
controlled quantity Class 7 (radioactive) materials (see Sec. 173.403 of 
this subchapter) must have the required RADIOACTIVE warning placard 
placed on a square background as described in Sec. 172.527.

[[Page 330]]

    (b) A nurse tank, meeting the provisions of Sec. 173.315(m) of this 
subchapter, is not required to be placarded on an end containing valves, 
fittings, regulators or gauges when those appurtenances prevent the 
markings and placard from being properly placed and visible.
[Amdt. 172-103, 51 FR 5971, Feb. 18, 1986, as amended by Amdt. 172-143, 
60 FR 50305, Sept. 28, 1995]



Sec. 172.508  Placarding and affixing placards: Rail.

    (a) Each person offering a hazardous material for transportation by 
rail shall affix to the rail car containing the material, the placards 
specified by this subpart. Placards displayed on motor vehicles, 
transport containers, or portable tanks may be used to satisfy this 
requirement, if the placards otherwise conform to the provisions of this 
subpart.
    (b) No rail carrier may accept a rail car containing a hazardous 
material for transportation unless the placards for the hazardous 
material are affixed thereto as required by this subpart.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-123, 
55 FR 52601, Dec. 21, 1990]



Sec. 172.510  Special placarding provisions: Rail.

    (a) White square background. The following must have the specified 
placards placed on a white square background, as described in 
Sec. 172.527:
    (1) Division 1.1 and 1.2 (explosive) materials which require 
EXPLOSIVES 1.1 or EXPLOSIVES 1.2 placards affixed to the rail car;
    (2) Materials classed in Division 2.3 Hazard Zone A or 6.1 Packing 
Group I Hazard Zone A which require POISON GAS or POISON placards 
affixed to the rail car, including tank cars containing only a residue 
of the material; and
    (3) Class DOT 113 tank cars used to transport a Division 2.1 
(flammable gas) material, including tank cars containing only a residue 
of the material.
    (b) FUMIGATION placard. Each transport vehicle and freight container 
containing lading that has been fumigated or treated with poisonous 
liquid, solid, or gas, and that is offered for transportation by rail 
must have the placard specified in Sec. 173.9 of this subchapter affixed 
on or near each door.
    (c) Chemical ammunition. Each rail car containing Division 1.1 or 
1.2 (explosive) ammunition which also meets the definition of a material 
poisonous by inhalation (see Sec. 171.8 of this subchapter) must be 
placarded EXPLOSIVES 1.1 or EXPLOSIVES 1.2 and POISON GAS or POISON.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-103, 
51 FR 5971, Feb. 18, 1986; Amdt. 172-110, 52 FR 29528, Aug. 10, 1987; 
Amdt. 172-111, 52 FR 36671, Sept. 30, 1987; Amdt. 172-123, 55 FR 52601, 
Dec. 21, 1990; 56 FR 66260, Dec. 20, 1991; 57 FR 45460, Oct. 1, 1992; 
Amdt. 172-248, 61 FR 28676, June 5, 1996; Amdt. 172-151, 62 FR 1231, 
Jan. 8, 1997; 62 FR 39398, July 22, 1997]

    Effective Date Note: By Amdt. 172-151, 62 FR 1231, Jan. 8, 1997, in 
Sec. 172.510, paragraph (b) was removed, paragraph (c) was redesignated 
as paragraph (b), and the phrase ``POISON GAS or POISON'' was replaced 
with the phrase ``POISON GAS or POISON INHALATION HAZARD.'', effective 
Oct. 1, 1997. At 62 FR 39398, July 22, 1997 the effective date was 
delayed until Oct. 1, 1998.



Sec. 172.512  Freight containers and aircraft unit load devices.

    (a) Capacity of 640 cubic feet or more. Each person who offers for 
transportation, and each person who loads and transports, a hazardous 
material in a freight container or aircraft unit load device having a 
capacity of 640 cubic feet or more shall affix to the freight container 
or aircraft unit load device the placards specified for the material in 
accordance with Sec. 172.504. However:
    (1) The placarding exception provided in Sec. 172.504(c) applies to 
motor vehicles transporting freight containers and aircraft unit load 
devices,
    (2) The placarding exception provided in Sec. 172.504(c) applies to 
each freight container and aircraft unit load device being transported 
for delivery to a consignee immediately following an air or water 
shipment, and,
    (3) Placarding is not required on a freight container or aircraft 
unit load device if it is only transported by air and is identified as 
containing a hazardous material in the manner provided in part 5, 
chapter 2, section 2.7, of the ICAO Technical Instructions.

[[Page 331]]

    (b) Capacity less than 18 m\3\ (640 cubic feet). Each person who 
offers for transportation by air, and each person who loads and 
transports by air, a hazardous material in a freight container or 
aircraft unit load device having a capacity of less than 18 m\3\ (640 
cubic feet) shall affix one placard of the type specified by paragraph 
(a) of this section unless the freight container or aircraft unit load 
device:
    (1) Is labeled in accordance with subpart E of this part, including 
Sec. 172.406(e);
    (2) Contains radioactive materials requiring the Radioactive Yellow 
III label and is placarded with one Radioactive placard and is labeled 
in accordance with subpart E of this part, including Sec. 172.406(e); 
or,
    (3) Is identified as containing a hazardous material in the manner 
provided in part 5, chapter 2, section 2.7, of the ICAO Technical 
Instructions.

When hazardous materials are offered for transportation, not involving 
air transportation, in a freight container having a capacity of less 
than 640 cubic feet the freight container need not be placarded. 
However, if not placarded it must be labeled in accordance with subpart 
E of this part.
    (c) Notwithstanding paragraphs (a) and (b) of this section, packages 
containing hazardous materials, other than ORM-D, offered for 
transportation by air in freight containers are subject to the 
inspection requirements of Sec. 175.30 of this chapter.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-29A, 
41 FR 40680, Sept. 20, 1976; Amdt. 172-87, 48 FR 53712, Nov. 29, 1983; 
48 FR 55469, Dec. 13, 1983; Amdt. 172-103, 51 FR 5971, Feb. 18, 1986; 
Amdt. 172-111, 52 FR 36671, Sept. 30, 1987; Amdt. 172-123, 55 FR 52601, 
Dec. 21, 1990]



Sec. 172.514  Bulk packagings.

    (a) Except as provided in paragraph (c) of this section, each person 
who offers for transportation a bulk packaging which contains a 
hazardous material, shall affix the placards specified for the material 
in Secs. 172.504 and 172.505.
    (b) Each bulk packaging that is required to be placarded when it 
contains a hazardous material, must remain placarded when it is emptied, 
unless it is--
    (1) Sufficiently cleaned of residue and purged of vapors to remove 
any potential hazard; or
    (2) Refilled, with a material requiring different placards or no 
placards, to such an extent that any residue remaining in the packaging 
is no longer hazardous.
    (c) Exceptions. The following packagings may be placarded on only 
two opposite sides or, alternatively, may be labeled instead of 
placarded in accordance with subpart E of this part:
    (1) A portable tank having a capacity of less than 3,785 L (1000 
gallons);
    (2) A DOT 106 or 110 multi-unit tank car tank;
    (3) A bulk packaging other than a portable tank, cargo tank, or tank 
car (e.g., a bulk bag or box) with a volumetric capacity of less than 18 
m\3\ (640 cubic feet); and
    (4) An intermediate bulk container.
[Amdt. 172-136, 59 FR 38064, July 26, 1994; Amdt. 172-148, 61 FR 50255, 
Sept. 25, 1996]



Sec. 172.516  Visibility and display of placards.

    (a) Each placard on a motor vehicle and each placard on a rail car 
must be readily visible from the direction it faces except from the 
direction of another motor vehicle or rail car to which the motor 
vehicle or rail car is coupled. This requirement may be met by the 
placards displayed on the freight containers or portable tanks loaded on 
a motor vehicle or rail car.
    (b) The required placarding of the front of a motor vehicle may be 
on the front of a truck-tractor instead of or in addition to the 
placarding on the front of the cargo body to which a truck-tractor is 
attached.
    (c) Each placard on a transport vehicle, bulk packaging, freight 
container or aircraft unit load device must--
    (1) Be securely attached or affixed thereto or placed in a holder 
thereon. (See appendix C to this part.);
    (2) Be located clear of appurtenances and devices such as ladders, 
pipes, doors, and tarpaulins;
    (3) So far as practicable, be located so that dirt or water is not 
directed to it from the wheels of the transport vehicle;
    (4) Be located away from any marking (such as advertising) that 
could

[[Page 332]]

substantially reduce its effectiveness, and in any case at least 3 
inches (76.0 mm.) away from such marking;
    (5) Have the words or identification number (when authorized) 
printed on it displayed horizontally, reading from left to right.
    (6) Be maintained by the carrier in a condition so that the format, 
legibility, color, and visibility of the placard will not be 
substantially reduced due to damage, deterioration, or obscurement by 
dirt or other matter.
    (7) Be affixed to a background of contrasting color, or must have a 
dotted or solid line outer border which contrasts with the background 
color.
    (d) Recommended specifications for a placard holder are set forth in 
appendix C of this part. Except for a placard holder similar to that 
contained in appendix C to this part, the means used to attach a placard 
may not obscure any part of its surface other than the borders.
    (e) A placard or placard holder may be hinged provided the required 
format, color, and legibility of the placard are maintained.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-101, 
45 FR 74668, Nov. 10, 1980; Amdt. 172-123, 55 FR 52601, Dec. 21, 1990]



Sec. 172.519  General specifications for placards.

    (a) Strength and durability. Placards must conform to the following:
    (1) A placard may be made of any plastic, metal or other material 
capable of withstanding, without deterioration or a substantial 
reduction in effectiveness, a 30-day exposure to open weather 
conditions.
    (2) A placard made of tagboard must be at least equal to that 
designated commercially as white tagboard. Tagboard must have a weight 
of at least 80 kg (176 pounds) per ream of 610 by 910 mm (24 by 36-inch) 
sheets, waterproofing materials included. In addition, each placard made 
of tagboard must be able to pass a 414 kPa (60 p.s.i.) Mullen test.
    (3) Reflective or retroreflective materials may be used on a placard 
if the prescribed colors, strength and durability are maintained.
    (b) Design. (1) Except as provided in Sec. 172.332 of this part, 
each placard must be as described in this subpart, and except for size 
and color, the printing, inner border and symbol must be as shown in 
Secs. 172.521 through 172.560 of this subpart, as appropriate.
    (2) The dotted line border shown on each placard is not part of the 
placard specification. However, a dotted or solid line outer border may 
be used when needed to indicate the full size of a placard that is part 
of a larger format or is on a background of a non-contrasting color.
    (3) For other than Class 7 or the OXYGEN placard, text indicating a 
hazard (for example, ``FLAMMABLE'') is not required.
    (4) For a placard corresponding to the primary hazard class of a 
material, the hazard class or division number must be displayed in the 
lower corner of the placard. However, no hazard class or division number 
may be displayed on a placard corresponding to a subsidiary hazard of 
the material.
    (c) Size. (1) Each placard prescribed in this subpart must measure 
at least 273 mm (10.8 inches) on each side and must have a solid line 
inner border approximately 12.7 mm (0.5 inches) from each edge.
    (2) Except as otherwise provided in this subpart, the hazard class 
or division number, as appropriate, must be shown in numerals measuring 
at least 41 mm (1.6 inches) in height.
    (3) Except as otherwise provided in this subpart, when text 
indicating a hazard is displayed on a placard, the printing must be in 
letters measuring at least 41 mm (1.6 inches) in height.
    (d) Color. (1) The background color, symbol, text, numerals and 
inner border on a placard must be as specified in Secs. 172.521 through 
172.560 of this subpart, as appropriate.
    (2) Black and any color on a placard must be able to withstand, 
without substantial change--
    (i) A 72-hour fadeometer test (for a description of equipment 
designed for this purpose, see ASTM G 23-69 or ASTM G 26-70); and
    (ii) A 30-day exposure to open weather.
    (3) Upon visual examination, a color on a placard must fall within 
the color

[[Page 333]]

tolerances displayed on the appropriate Hazardous Materials Label and 
Placard Color Tolerance Chart (see Sec. 172.407(d) (4)).
    (4) The placard color must extend to the inner border and may extend 
to the edge of the placard in the area designated on each placard except 
the color on the CORROSIVE and RADIOACTIVE placards (black and yellow, 
respectively) must extend only to the inner border.
    (e) Form identification. A placard may contain form identification 
information, including the name of its maker, provided that information 
is printed outside of the solid line inner border in no larger than 10-
point type.
    (f) Exceptions. For a shipment under the provisions of Secs. 171.11, 
171.12 or Sec. 171.12a of this subchapter, a placard conforming to 
specifications in the ICAO Technical Instructions, the IMDG Code, or the 
TDG Regulations, respectively, may be used in place of a corresponding 
placard which conforms to the requirements of this subpart.
    (g) Trefoil symbol. The trefoil symbol on the RADIOACTIVE placard 
must meet the appropriate specification in Appendix B of this part.
[Amdt. 172-123, 55 FR 52601, Dec. 21, 1990, as amended at 56 FR 66260, 
Dec. 20, 1991; 57 FR 45460, Oct. 1, 1992; Amdt. 172-143, 60 FR 50305, 
Sept. 28, 1995]



Sec. 172.521  DANGEROUS placard.

    (a) Except for size and color, the DANGEROUS placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.039

    (b) In addition to meeting the requirements of Sec. 172.519, and 
appendix B to this part, the DANGEROUS placard must have a red upper and 
lower triangle. The placard center area and \1/2\-inch (12.7 mm.) border 
must be white. The inscription must be black with the \1/8\-inch (3.2 
mm.) border marker in the white area at each end of the inscription red.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 76, as amended by Amdt. 172-29A, 41 
FR 40680, Sept. 20, 1976]



Sec. 172.522  EXPLOSIVES 1.1, EXPLOSIVES 1.2 and EXPLOSIVES 1.3 placards.

    (a) Except for size and color, the EXPLOSIVES 1.1, EXPLOSIVES 1.2 
and EXPLOSIVES 1.3 placards must be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.040

    (b) In addition to complying with Sec. 172.519 of this subpart, the 
background color on the EXPLOSIVES 1.1, EXPLOSIVES 1.2, and EXPLOSIVES 
1.3 placards must be orange. The ``*'' shall be replaced with the 
appropriate division number and, when required, appropriate 
compatibility group letter. The symbol, text, numerals and inner border 
must be black.
[Amdt. 172-123, 55 FR 52602, Dec. 21, 1990, as amended at 56 FR 66260, 
Dec. 20, 1991]



Sec. 172.523  EXPLOSIVES 1.4 placard.

    (a) Except for size and color, the EXPLOSIVES 1.4 placard must be as 
follows:

[[Page 334]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.041

    (b) In addition to complying with Sec. 172.519 of this subpart, the 
background color on the EXPLOSIVES 1.4 placard must be orange. The ``*'' 
shall be replaced, when required, with the appropriate compatibility 
group letter. The division numeral, 1.4, must measure at least 64 mm 
(2.5 inches) in height. The text, numerals and inner border must be 
black.
[Amdt. 172-123, 55 FR 52602, Dec. 21, 1990, as amended at 56 FR 66261, 
Dec. 20, 1991]



Sec. 172.524  EXPLOSIVES 1.5 placard.

    (a) Except for size and color, the EXPLOSIVES 1.5 placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.042

    (b) In addition to complying with the Sec. 172.519 of this subpart, 
the background color on EXPLOSIVES 1.5 placard must be orange. The ``*'' 
shall be replaced, when required, with the appropriate compatibility 
group letter. The division numeral, 1.5, must measure at least 64 mm 
(2.5 inches) in height. The text, numerals and inner border must be 
black.
[Amdt. 172-123, 55 FR 52602, Dec. 21, 1990, as amended at 56 FR 66261, 
Dec. 20, 1991]



Sec. 172.525  EXPLOSIVES 1.6 placard.

    (a) Except for size and color the EXPLOSIVES 1.6 placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.043

    (b) In addition to complying with Sec. 172.519 of this subpart, the 
background color on the EXPLOSIVES 1.6 placard must be orange. The ``*'' 
shall be replaced, when required, with the appropriate compatibility 
group letter. The division numeral, 1.6, must measure at least 64 mm 
(2.5 inches) in height. The text, numerals and inner border must be 
black.
[Amdt. 172-123, 55 FR 52603, Dec. 21, 1990, as amended at 56 FR 66261, 
Dec. 20, 1991; Amdt. 172-130, 58 FR 51531, Oct. 1, 1993]



Sec. 172.526  [Reserved]



Sec. 172.527  Background requirements for certain placards.

    (a) Except for size and color, the square background required by 
Sec. 172.510(a) for certain placards on rail cars, and Sec. 172.507 for 
placards on motor vehicles containing a package of highway route 
controlled quantity radioactive materials, must be as follows:

[[Page 335]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.044

    (b) In addition to meeting the requirements of Sec. 172.519 for 
minimum durability and strength, the square background must consist of a 
white square measuring 14\1/4\ inches (362.0 mm.) on each side 
surrounded by a black border extending to 15\1/4\ inches (387.0 mm.) on 
each side.
[Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, as amended by Amdt. 172-64, 
46 FR 5316, Jan. 19, 1981; Amdt. 172-78, 48 FR 10226, Mar. 10, 1983]



Sec. 172.528  NON-FLAMMABLE GAS placard.

    (a) Except for size and color, the NON-FLAMMABLE GAS placard must be 
as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.045

    (b) In addition to complying with Sec. 172.519, the background color 
on the NON-FLAMMABLE GAS placard must be green. The letters in both 
words must be at least 38 mm (1.5 inches) high. The symbol, text, class 
number and inner border must be white.
[Amdt. 172-123, 56 FR 66261, Dec. 20, 1991]



Sec. 172.530  OXYGEN placard.

    (a) Except for size and color, the OXYGEN placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.046

    (b) In addition to complying with Sec. 172.519 of this subpart, the 
background color on the OXYGEN placard must be yellow. The symbol, text, 
class number and inner border must be black.
[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]



Sec. 172.532  FLAMMABLE GAS placard.

    (a) Except for size and color, the FLAMMABLE GAS placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.047

    (b) In addition to complying with Sec. 172.519, the background color 
on the

[[Page 336]]

FLAMMABLE GAS placard must be red. The symbol, text, class number and 
inner border must be white.
[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]



Sec. 172.536  [Reserved]



Sec. 172.540  POISON GAS placard.

    (a) Except for size and color, the POISON GAS placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.048

    (b) In addition to complying with Sec. 172.519, the background color 
on the POISON GAS placard must be white. The symbol, text, class number 
and inner border must be black. The words ``TOXIC GAS'' may be used in 
lieu of the words ``POISON GAS''.
[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991, as amended by Amdt. 172-139, 
59 FR 67490, Dec. 29, 1994]

    Effective Date Note: At 62 FR 39408, July 22, 1997, Sec. 172.540 was 
revised effective Oct. 1, 1998. For the convenience of the user the 
revised text is set forth as follows:

Sec. 172.540  POISON GAS placard.

    (a) Except for size and color, the POISON GAS placard must be as 
follows:


[[Page 337]]


[GRAPHIC] [TIFF OMITTED] TR22JY97.024



[[Page 338]]


    (b) In addition to complying with Sec. 172.519, the background on 
the POISON GAS placard and the symbol must be white. The background of 
the upper diamond must be black and the lower point of the upper diamond 
must be 65 mm (2\5/8\ inches) above the horizontal center line. The 
text, class number, and inner border must be black.
[62 FR 39408, July 22, 1997]



Sec. 172.542  FLAMMABLE placard.

    (a) Except for size and color, the FLAMMABLE placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.049

    (b) In addition to complying with Sec. 172.519, the background color 
on the FLAMMABLE placard must be red. The symbol, text, class number and 
inner border must be white.
    (c) The word ``GASOLINE'' may be used in place of the word 
``FLAMMABLE'' on a placard that is displayed on a cargo tank or a 
portable tank being used to transport gasoline by highway. The word 
``GASOLINE'' must be shown in white.
[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]



Sec. 172.544  COMBUSTIBLE placard.

    (a) Except for size and color, the COMBUSTIBLE placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.050

    (b) In addition to complying with Sec. 172.519, the background color 
on the COMBUSTIBLE placard must be red. The symbol, text, class number 
and inner border must be white. On a COMBUSTIBLE placard with a white 
bottom as prescribed by Sec. 172.332(c)(4), the class number must be red 
or black.
    (c) The words ``FUEL OIL'' may be used in place of the word 
``COMBUSTIBLE'' on a placard that is displayed on a cargo tank or 
portable tank being used to transport by highway fuel oil that is not 
classed as a flammable liquid. The words ``FUEL OIL'' must be white.
[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]



Sec. 172.555  POISON INHALATION HAZARD placard.

    (a) Except for size and color, the POISON INHALATION HAZARD placard 
must be as follows:


[[Page 339]]


[GRAPHIC] [TIFF OMITTED] TR22JY97.025


    (b) In addition to complying with Sec. 172.519, the background on 
the POISON INHALATION HAZARD placard and the symbol must be white. The 
background of the upper diamond must be black and the lower point of the 
upper diamond must be 65 mm (2\5/8\ inches) above the horizontal center 
line. The text, class number, and inner border must be black.
[62 FR 39409, July 22, 1997.]

    Effective Date Note: At 62 FR 39409, July 22, 1997, Sec. 172.555, as 
added by Amdt. 172-151, 62 FR 1233, Jan. 8, 1997, effective Oct. 1, 1998 
was revised, effective Oct. 1, 1998.



Sec. 172.546  FLAMMABLE SOLID placard.

    (a) Except for size and color, the FLAMMABLE SOLID placard must be 
as follows:

[[Page 340]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.051

    (b) In addition to complying with Sec. 172.519, the background on 
the FLAMMABLE SOLID placard must be white with seven vertical red 
stripes. The stripes must be equally spaced, with one red stripe placed 
in the center of the label. Each red stripe and each white space between 
two red stripes must be 25 mm (1.0 inches) wide. The letters in the word 
``SOLID'' must be at least 38.1 mm (1.5 inches) high. The symbol, text, 
class number and inner border must be black.
[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991]



Sec. 172.547  SPONTANEOUSLY COMBUSTIBLE placard.

    (a) Except for size and color, the SPONTANEOUSLY COMBUSTIBLE placard 
must be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.052

    (b) In addition to complying with Sec. 172.519, the background color 
on the SPONTANEOUSLY COMBUSTIBLE placard must be red in the lower half 
and white in upper half. The letters in the word ``SPONTANEOUSLY'' must 
be at least 12 mm (0.5 inch) high. The symbol, text, class number and 
inner border must be black.
[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991, as amended by Amdt. 172-139, 
59 FR 67490, Dec. 29, 1994]



Sec. 172.548  DANGEROUS WHEN WET placard.

    (a) Except for size and color, the DANGEROUS WHEN WET placard must 
be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.053


[[Page 341]]


    (b) In addition to complying with Sec. 172.519, the background color 
on the DANGEROUS WHEN WET placard must be blue. The letters in the words 
``WHEN WET'' must be at least 25 mm (1.0 inches) high. The symbol, text, 
class number and inner border must be white.
[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991]



Sec. 172.550  OXIDIZER placard.

    (a) Except for size and color, the OXIDIZER placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.054

    (b) In addition to complying with Sec. 172.519, the background color 
on the OXIDIZER placard must be yellow. The symbol, text, division 
number and inner border must be black.
[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991]



Sec. 172.552  ORGANIC PEROXIDE placard.

    (a) Except for size and color, the ORGANIC PEROXIDE placard must be 
as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.055

    (b) In addition to complying with Sec. 172.519, the background color 
on the ORGANIC PEROXIDE placard must be yellow. The symbol, text, 
division number and inner border must be black.
[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991]



Sec. 172.553  KEEP AWAY FROM FOOD placard.

    (a) Except for size and color, the KEEP AWAY FROM FOOD placard must 
be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.056

    (b) In addition to complying with Sec. 172.519, the background on 
the KEEP AWAY FROM FOOD placard must be white. The size of the lettering 
below the word ``HARMFUL'' must be proportional to that shown. The 
symbol, text,

[[Page 342]]

class number and inner border must be black.
[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991]



Sec. 172.554  POISON placard.

    (a) Except for size and color, the POISON placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.057

    (b) In addition to complying with Sec. 172.519, the background on 
the POISON placard must be white. The symbol, text, class number and 
inner border must be black. The word ``TOXIC'' may be used in lieu of 
the word ``POISON''.
[Amdt. 172-123, 56 FR 66264, Dec. 20, 1991, as amended by Amdt. 172-139, 
59 FR 67490, Dec. 29, 1994]



Sec. 172.556  RADIOACTIVE placard.

    (a) Except for size and color, the RADIOACTIVE placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.058

    (b) In addition to complying with Sec. 172.519, the background color 
on the RADIOACTIVE placard must be white in the lower portion with a 
yellow triangle in the upper portion. The base of the yellow triangle 
must be 29 mm  5 mm (1.1 inches 0.2 inches) 
above the placard horizontal center line. The symbol, text, class number 
and inner border must be black.
[Amdt. 172-123, 56 FR 66264, Dec. 20, 1991; Amdt. 172-130, 58 FR 51531, 
Oct. 1, 1993]



Sec. 172.558  CORROSIVE placard.

    (a) Except for size and color, the CORROSIVE placard must be as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.059

    (b) In addition to complying with Sec. 172.519, the background color 
on the

[[Page 343]]

CORROSIVE placard must be black in the lower portion with a white 
triangle in the upper portion. The base of the white triangle must be 38 
mm  5 mm (1.5 inches  0.2 inches) above the 
placard horizontal center line. The text and class number must be white. 
The symbol and inner border must be black.
[Amdt. 172-123, 56 FR 66264, Dec. 20, 1991]



Sec. 172.560  CLASS 9 placard.

    (a) Except for size and color the CLASS 9 (miscellaneous hazardous 
materials) placard must be as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.060

    (b) In addition to conformance with Sec. 172.519, the background on 
the CLASS 9 placard must be white with seven black vertical stripes on 
the top half extending from the top of the placard to one inch above the 
horizontal centerline. The black vertical stripes must be spaced so 
that, visually, they appear equal in width to the six white spaces 
between them. The space below the vertical lines must be white with the 
class number 9 underlined and centered at the bottom.
[Amdt. 172-123, 56 FR 66264, Dec. 20, 1991, as amended at 57 FR 45460, 
Oct. 1, 1992]



                Subpart G--Emergency Response Information



Sec. 172.600  Applicability and general requirements.

    (a) Scope. Except as provided in paragraph (d) of this section, this 
subpart prescribes requirements for providing and maintaining emergency 
response information during transportation and at facilities where 
hazardous materials are loaded for transportation, stored incidental to 
transportation or otherwise handled during any phase of transportation.
    (b) Applicability. This subpart applies to persons who offer for 
transportation, accept for transportation, transfer or otherwise handle 
hazardous materials during transportation.
    (c) General requirements. No person to whom this subpart applies may 
offer for transportation, accept for transportation, transfer, store or 
otherwise handle during transportation a hazardous material unless:
    (1) Emergency response information conforming to this subpart is 
immediately available for use at all times the hazardous material is 
present; and
    (2) Emergency response information, including the emergency response 
telephone number, required by this subpart is immediately available to 
any person who, as a representative of a Federal, State or local 
government agency, responds to an incident involving a hazardous 
material, or is conducting an investigation which involves a hazardous 
material.
    (d) Exceptions. The requirements of this subpart do not apply to 
hazardous material which is excepted from the shipping paper 
requirements of this subchapter or a material properly classified as an 
ORM-D.
[Amdt. 172-116, 54 FR 27145, June 27, 1989; 54 FR 28750, July 5, 1989, 
as amended at 55 FR 33712, Aug. 17, 1990; 172-127, 59 FR 49133, Sept. 
26, 1994; Amdt. 172-149, 61 FR 27173, May 30, 1996]



Sec. 172.602  Emergency response information.

    (a) Information required. For purposes of this subpart, the term 
``emergency response information'' means information that can be used in 
the mitigation of an incident involving hazardous materials and, as a 
minimum, must contain the following information:
    (1) The basic description and technical name of the hazardous 
material as required by Secs. 172.202 and 172.203(k), the ICAO Technical 
Instructions, the IMDG Code, or the TDG Regulations, as appropriate;
    (2) Immediate hazards to health;
    (3) Risks of fire or explosion;

[[Page 344]]

    (4) Immediate precautions to be taken in the event of an accident or 
incident;
    (5) Immediate methods for handling fires;
    (6) Initial methods for handling spills or leaks in the absence of 
fire; and
    (7) Preliminary first aid measures.
    (b) Form of information. The information required for a hazardous 
material by paragraph (a) of this section must be:
    (1) Printed legibly in English;
    (2) Available for use away from the package containing the hazardous 
material; and
    (3) Presented--
    (i) On a shipping paper;
    (ii) In a document, other than a shipping paper, that includes both 
the basic description and technical name of the hazardous material as 
required by Secs. 172.202 and 172.203(k), the ICAO Technical 
Instructions, the IMDG Code, or the TDG Regulations, as appropriate, and 
the emergency response information required by this subpart (e.g., a 
material safety data sheet); or
    (iii) Related to the information on a shipping paper, a written 
notification to pilot-in-command, or a dangerous cargo manifest, in a 
separate document (e.g., an emergency response guidance document), in a 
manner that cross-references the description of the hazardous material 
on the shipping paper with the emergency response information contained 
in the document. Aboard aircraft, the ICAO ``Emergency Response Guidance 
for Aircraft Incidents Involving Dangerous Goods'' and, aboard vessels, 
the IMO ``Emergency Procedures for Ships Carrying Dangerous Goods'', or 
equivalent documents, may be used to satisfy the requirements of this 
section for a separate document.
    (c) Maintenance of information. Emergency response information shall 
be maintained as follows:
    (1) Carriers. Each carrier who transports a hazardous material shall 
maintain the information specified in paragraph (a) of this section in 
the same manner as prescribed for shipping papers, except that the 
information must be maintained in the same manner aboard aircraft as the 
notification to pilot-in-command, and aboard vessels in the same manner 
as the dangerous cargo manifest. This information must be immediately 
accessible to train crew personnel, drivers of motor vehicles, flight 
crew members, and bridge personnel on vessels for use in the event of 
incidents involving hazardous materials.
    (2) Facility operators. Each operator of a facility where a 
hazardous material is received, stored or handled during transportation, 
shall maintain the information required by paragraph (a) of this section 
whenever the hazardous material is present. This information must be in 
a location that is immediately accessible to facility personnel in the 
event of an incident involving the hazardous material.
[Amdt. 172-116, 54 FR 27146, June 27, 1989; 54 FR 28750, July 5, 1989, 
as amended by Amdt. 172-116, 55 FR 875, Jan. 10, 1990]

    Effective Date Note: By Amdt. 172-151, 62 FR 1234, Jan. 8, 1997, 
Sec. 172.602(c)(1) was revised, effective Oct. 1, 1997. At 62 FR 39398, 
July 22, 1997, the effective date was delayed until Oct. 1, 1998. For 
the convenience of the user the revised text is set forth as follows:

Sec. 172.602  Emergency response information.

                                * * * * *

    (c) * * *
    (1) Carriers. Each carrier who transports a hazardous material shall 
maintain the information specified in paragraph (a) of this section and 
Sec. 172.606 of this part in the same manner as prescribed for shipping 
papers, except that the information must be maintained in the same 
manner aboard aircraft as the notification of pilot-in-command, and 
aboard vessels in the same manner as the dangerous cargo manifest. This 
information must be immediately accessible to train crew personnel, 
drivers of motor vehicles, flight crew members, and bridge personnel on 
vessels for use in the event of incidents involving hazardous materials.

                                * * * * *



Sec. 172.604  Emergency response telephone number.

    (a) A person who offers a hazardous material for transportation must 
provide a 24-hour emergency response telephone number (including the 
area code or international access code) for use in the event of an 
emergency involving the hazardous material. The telephone number must 
be--

[[Page 345]]

    (1) Monitored at all times the hazardous material is in 
transportation, including storage incidental to transportation;
    (2) The number of a person who is either knowledgeable of the 
hazardous material being shipped and has comprehensive emergency 
response and incident mitigation information for that material, or has 
immediate access to a person who possesses such knowledge and 
information; and
    (3) Entered on a shipping paper, as follows:
    (i) Immediately following the description of the hazardous material 
required by subpart C of this part; or
    (ii) Entered once on the shipping paper in a clearly visible 
location. This provision may be used only if the telephone number 
applies to each hazardous material entered on the shipping paper, and if 
it is indicated that the telephone number is for emergency response 
information (for example: ``EMERGENCY CONTACT: * * *).
    (b) The telephone number required by paragraph (a) of this section 
must be the number of the person offering the hazardous material for 
transportation or the number of an agency or organization capable of, 
and accepting responsibility for, providing the detailed information 
concerning the hazardous material. A person offering a hazardous 
material for transportation who lists the telephone number of an agency 
or organization shall ensure that agency or organization has received 
current information on the material, as required by paragraph (a)(2) of 
this section before it is offered for transportation.
    (c) The requirements of this section do not apply to--
    (1) Hazardous materials that are offered for transportation under 
the provisions applicable to limited quantities; and
    (2) Materials properly described under the shipping names ``Engines, 
internal combustion'', ``Battery powered equipment'', ``Battery powered 
vehicle'', Wheelchair, electric'', ``Carbon dioxide, solid'', ``Dry 
ice'', ``Fish meal, stabilized'', ``Fish scrap, stabilized'', ``Castor 
bean'', ``Castor meal'', ``Castor flake'', ``Castor pomace'', or 
``Refrigerating machine''.
[Amdt. 172-116, 54 FR 27145, June 27, 1989, as amended at 55 FR 33713, 
Aug. 17, 1990; Amdt. 172-127, 59 FR 49133, Sept. 26, 1994; Amdt. 172-
149, 61 FR 27173, May 30, 1996]



Sec. 172.606  Carrier information contact.

    Each carrier who transports or accepts for transportation a 
hazardous material for which a shipping paper is required--
    (a) Shall instruct the operator of a motor vehicle, train, aircraft, 
or vessel to contact the carrier (e.g., by telephone or mobile radio) in 
the event of an incident involving the hazardous material.
    (b) For transportation by highway, if a transport vehicle, (e.g., a 
semi-trailer or freight container-on-chassis) contains hazardous 
material for which a shipping paper is required and the vehicle is 
separated from its motive power and parked at a location other than a 
consignee's, consignor's, or carrier's facility, the carrier shall--
    (1) Comply with the emergency response information requirements for 
facility operators specified in Sec. 172.602(c)(2);
    (2) Mark the transport vehicle with the telephone number of the 
motor carrier on the front of the transport vehicle near the brake hose 
and electrical connections; or
    (3) Have the shipping paper and emergency response information 
readily available on the transport vehicle.
    (c) The requirements specified in paragraph (b) of this section do 
not apply to an unattended motor vehicle separated from its motive power 
when the motor vehicle is marked on an orange panel, a placard, or a 
plain white square-on-point configuration with the identification number 
of each hazardous material loaded therein, and the marking or placard is 
visible on the outside of the motor vehicle.
[Amdt. 172-151, 62 FR 1234, Jan. 8, 1997, as amended at 62 FR 39398 and 
39409, July 22, 1997]

    Effective Date Note: By Amdt. 172-151, 62 FR 1234, Jan. 8, 1997 
Sec. 172.606 was added, effective Oct. 1, 1997. At 62 FR 39398 and 
39409, the effective date was delayed until Oct. 1, 1998 and paragraph 
(c) was added, effective Oct. 1, 1998.

[[Page 346]]



                           Subpart H--Training

    Source:  Amdt. 172-126, 57 FR 20952, May 15, 1992, unless otherwise 
noted.



Sec. 172.700  Purpose and scope.

    (a) Purpose. This subpart prescribes requirements for training 
hazmat employees.
    (b) Scope. Training as used in this subpart means a systematic 
program that ensures a hazmat employee has familiarity with the general 
provisions of this subchapter, is able to recognize and identify 
hazardous materials, has knowledge of specific requirements of this 
subchapter applicable to functions performed by the employee, and has 
knowledge of emergency response information, self-protection measures 
and accident prevention methods and procedures (see Sec. 172.704).
    (c) Modal-specific training requirements. Additional training 
requirements for the individual modes of transportation are prescribed 
in parts 174, 175, 176, and 177 of this subchapter.



Sec. 172.701  Federal-State relationship.

    This subpart and the parts referenced in Sec. 172.700(c) prescribe 
minimum training requirements for the transportation of hazardous 
materials. For motor vehicle drivers, however, a State may impose more 
stringent training requirements only if those requirements--
    (a) Do not conflict with the training requirements in this subpart 
and in part 177 of this subchapter; and
    (b) Apply only to drivers domiciled in that State.



Sec. 172.702  Applicability and responsibility for training and testing.

    (a) A hazmat employer shall ensure that each of its hazmat employees 
is trained in accordance with the requirements prescribed in this 
subpart.
    (b) Except as provided in Sec. 172.704(c)(1), a hazmat employee who 
performs any function subject to the requirements of this subchapter may 
not perform that function unless instructed in the requirements of this 
subchapter that apply to that function. It is the duty of each hazmat 
employer to comply with the applicable requirements of this subchapter 
and to thoroughly instruct each hazmat employee in relation thereto.
    (c) Training may be provided by the hazmat employer or other public 
or private sources.
    (d) A hazmat employer shall ensure that each of its hazmat employees 
is tested by appropriate means on the training subjects covered in 
Sec. 172.704.
[Amdt. 172-126, 57 FR 20952, May 15, 1992; 57 FR 22182, May 27, 1992, as 
amended by Amdt. 172-149, 61 FR 27173, May 30, 1996]



Sec. 172.704  Training requirements.

    (a) Hazmat employee training shall include the following:
    (1) General awareness/familiarization training. Each hazmat employee 
shall be provided general awareness/familiarization training designed to 
provide familiarity with the requirements of this subchapter, and to 
enable the employee to recognize and identify hazardous materials 
consistent with the hazard communication standards of this subchapter.
    (2) Function-specific training. (i) Each hazmat employee shall be 
provided function-specific training concerning requirements of this 
subchapter, or exemptions issued under subchapter A of this chapter, 
which are specifically applicable to the functions the employee 
performs.
    (ii) As an alternative to function-specific training on the 
requirements of this subchapter, training relating to the requirements 
of the ICAO Technical Instructions and the IMDG Code may be provided to 
the extent such training addresses functions authorized by Secs. 171.11 
and 171.12 of this subchapter.
    (3) Safety training. Each hazmat employee shall receive safety 
training concerning--
    (i) Emergency response information required by subpart G of part 
172;
    (ii) Measures to protect the employee from the hazards associated 
with hazardous materials to which they may be exposed in the work place, 
including specific measures the hazmat employer has implemented to 
protect employees from exposure; and
    (iii) Methods and procedures for avoiding accidents, such as the 
proper procedures for handling packages containing hazardous materials.

[[Page 347]]

    (b) OSHA or EPA Training. Training conducted by employers to comply 
with the hazard communication programs required by the Occupational 
Safety and Health Administration (OSHA) of the Department of Labor (29 
CFR 1910.120) or the Environmental Protection Agency (EPA) (40 CFR 
311.1), to the extent that training addresses the training specified in 
paragraph (a) of this section, may be used to satisfy the training 
requirements in paragraph (a) of this section, in order to avoid 
unnecessary duplication of training.
    (c) Initial and recurrent training--(1) Initial training. A new 
hazmat employee, or a hazmat employee who changes job functions may 
perform those functions prior to the completion of training provided--
    (i) The employee performs those functions under the direct 
supervision of a properly trained and knowledgeable hazmat employee; and
    (ii) The training is completed within 90 days after employment or a 
change in job function.
    (2) Recurrent training. A hazmat employee shall receive the training 
required by this subpart at least once every three years.
    (3) Relevant Training. Relevant training received from a previous 
employer or other source may be used to satisfy the requirements of this 
subpart provided a current record of training is obtained from hazmat 
employees' previous employer.
    (4) Compliance. Each hazmat employer is responsible for compliance 
with the requirements of this subchapter regardless of whether the 
training required by this subpart has been completed.
    (d) Recordkeeping. A record of current training, inclusive of the 
preceding three years, in accordance with this section shall be created 
and retained by each hazmat employer for as long as that employee is 
employed by that employer as a hazmat employee and for 90 days 
thereafter. The record shall include:
    (1) The hazmat employee's name;
    (2) The most recent training completion date of the hazmat 
employee's training;
    (3) A description, copy, or the location of the training materials 
used to meet the requirements in paragraph (a) of this section;
    (4) The name and address of the person providing the training; and
    (5) Certification that the hazmat employee has been trained and 
tested, as required by this subpart.
    (e) Limitation. A hazmat employee who repairs, modifies, 
reconditions, or tests packagings as qualified for use in the 
transportation of hazardous materials, and who does not perform any 
other function subject to the requirements of this subchapter, is not 
subject to the safety training requirement of paragraph (a)(3) of this 
section.
[Amdt. 172-126, 57 FR 20952, May 15, 1992, as amended by Amdt. 172-126, 
58 FR 5851, Jan. 22, 1993; Amdt. 172-145, 60 FR 49110, Sept. 21, 1995; 
Amdt. 172-149, 61 FR 27173, May 30, 1996]

  Appendix A to Part 172--Office of Hazardous Materials Transportation 
                    Color Tolerance Charts and Tables

    The following are Munsell notations and Commission Internationale de 
L'Eclairage (CIE) coordinates which describe the Office of Hazardous 
Materials Transportation Label and Placard Color Tolerance Charts in 
Tables 1 and 2, and the CIE coordinates for the color tolerances 
specified in Table 3. Central colors and tolerances described in Table 2 
approximate those described in Table 1 while allowing for differences in 
production methods and materials used to manufacture labels and placards 
surfaced with printing inks. Primarily, the color charts based on Table 
1 are for label or placard colors applied as opaque coatings such as 
paint, enamel or plastic, whereas color charts based on Table 2 are 
intended for use with labels and placards surfaced only with inks.
    For labels printed directly on packaging surfaces, Table 3 may be 
used, although compliance with either Table 1 or Table 2 is sufficient. 
However, if visual reference indicates that the colors of labels printed 
directly on package surfaces are outside the Table 1 or 2 tolerances, a 
spectrophotometer or other instrumentation may be required to insure 
compliance with Table 3.

[[Page 348]]



    Table 1.--Specifications for Color Tolerance Charts for Use With Labels and Placards Surfaced With Paint,   
                           Lacquer, Enamel, Plastic, Other Opaque Coatings, or Ink \1\                          
----------------------------------------------------------------------------------------------------------------
                                                                                        CIE data for source C   
                     Color                               Munsell notations         -----------------------------
                                                                                        Y         x         y   
----------------------------------------------------------------------------------------------------------------
Red:                                                                                                            
  Central color...............................  7.5R 4.0/14.......................     12.00     .5959      3269
  Orange......................................  8.5R 4.0/14.......................     12.00     .6037      3389
  Purple and vivid............................  6.5R 4.0/14.......................     12.00     .5869     .3184
  Grayish.....................................  7.5R 4.0/12.......................     12.00     .5603     .3321
  Vivid.......................................  7.5R 4.0/16.......................     12.00     .6260     .3192
  Light.......................................  7.5R 4.5/14.......................     15.57     .5775     .3320
  Dark........................................  7. 5R 3.5/14......................     09.00     .6226     .3141
Orange:                                                                                                         
  Central color...............................  5.OYR 6.0/15......................     30.05     .5510     .4214
  Yellow and Grayish..........................  6.25YR 6.0/15.....................     30.05     .5452     .4329
  Red and vivid...............................  3.75YR 6.0/15.....................     30.05     .5552     .4091
  Grayish.....................................  5.OYR 6.0/13......................     30.05     .5311     .4154
  Vivid.......................................  5.OYR 6.0/16......................     30.05     .5597     .4239
  Light.......................................  5.OYR 6.5/15......................     36.20     .5427     .4206
  Dark........................................  5.OYR 5.5/15......................     24.58     .5606     .4218
Yellow:                                                                                                         
  Central color...............................  5.OY 8.0/12.......................     59.10     .4562     .4788
  Green.......................................  6.5Y 8.0/12.......................     59.10     .4498     .4865
  Orange and vivid............................  3.5Y 8.0/12.......................     59.10     .4632     .4669
  Grayish.....................................  5.OY 8.0/10.......................     59.10     .4376     .4601
  Vivid.......................................  5.OY 8.0/14.......................     59.10     .4699     .4920
  Light.......................................  5.OY 8.5/12.......................     68.40     .4508     .4754
  Dark........................................  5.OY 7.5/12.......................     50.68     .4620     .4823
Green:                                                                                                          
  Central color...............................  7.5G 4.0/9........................     12.00     .2111     .4121
  Bluish......................................  0.5BG 4.0/9.......................     12.00     .1974     .3809
  Green-yellow................................  5.0G 4.0/9........................     12.00      2237     .4399
  Grayish A...................................  7.5G 4.0/7........................     12.00     .2350     .3922
  Grayish B \2\...............................  7.5G 4.0/6........................     12.00     .2467     .3822
  Vivid.......................................  7.5G 4.0/11.......................     12.00     .1848     .4319
  Light.......................................  7.5G 4.5/9........................     15.57     .2204     .4060
  Dark........................................  7.5G 3.5/9........................     09.00     .2027     .4163
Blue:                                                                                                           
  Central color...............................  2.5PB 3.5/10......................     09.00     .1691     .1744
  Purple......................................  4.5PB 3.5/10......................     09.00     .1796     .1711
  Green and vivid.............................  10.0B 3.5/10......................     09.00     .1557     .1815
  Grayish.....................................  2.5PB 3.5/8.......................     09.00     .1888     .1964
  Vivid.......................................  2.5PB 3.5/12......................     09.00     .1516     .1547
  Light.......................................  2.5PB 4.0/10......................     12.00     .1805     .1888
  Dark........................................  2.5PB 3.0/10......................     06.55     .1576     .1600
Purple:                                                                                                         
  Central color...............................  10.0P 4.5/10......................     15.57     .3307     .2245
  Reddish purple..............................  2.5RP 4.5/10......................     15.57     .3584     .2377
  Blue purple.................................  7.5P 4.5/10.......................     15.57     .3068     .2145
  Reddish gray................................  10.0P 4.5/8.......................     15.57     .3280     .2391
  Gray \2\....................................  10.0P 4.5/6.5.....................     15.57     .3254     .2519
  Vivid.......................................  10.0P 4.5/12......................     15.57     .3333     .2101
  Light.......................................  10.0P 5.0/10......................     19.77     .3308     .2328
  Dark........................................  10.0P 4.0/10......................     12.00     .3306     .2162
----------------------------------------------------------------------------------------------------------------
\1\ Maximum chroma is not limited.                                                                              
\2\ For the colors green and purple, the minimum saturation (chroma) limits for porcelain enamel on metal are   
  lower than for most other surface coatings. Therefore, the minimum chroma limits of these two colors as       
  displayed on the Charts for comparison to porcelain enamel on metal is low, as shown for green (grayish B) and
  purple (gray).                                                                                                
                                                                                                                
Note: CIE=Commission Internationale de L'Eclairage.                                                             


     Table 2.--Specifications for Color Tolerance Charts for Use With Labels and Placards Surfaced With Ink     
----------------------------------------------------------------------------------------------------------------
                                                                                        CIE data for source C   
                 Color/series                            Munsell notation          -----------------------------
                                                                                        Y         x         y   
----------------------------------------------------------------------------------------------------------------
Red:                                                                                                            
Central series:                                                                                                 
  Central color...............................  6.8R 4.47/12.8....................     15.34     .5510     .3286
  Grayish.....................................  7.2R 4.72/12.2....................     17.37     .5368     .3348
  Purple......................................  6.4R 4.49/12.7....................     15.52     .5442     .3258
  Purple and vivid............................  6.1R 4.33/13.1....................     14.25     .5529     .3209

[[Page 349]]

                                                                                                                
  Vivid.......................................  6.7R 4.29/13.2....................     13.99     .5617     .3253
  Orange......................................  7.3R 4.47/12.8....................     15.34     .5572     .3331
  Orange and grayish..........................  7.65R 4.70/12.4...................     17.20     .5438     .3382
Light series:                                                                                                   
  Light.......................................  7.0R 4.72/13.2....................     17.32     .5511     .3322
  Light and orange............................  7.4R 4.96/12.6....................     19.38     .5365     .3382
  Light and purple............................  6.6R 4.79/12.9....................     17.94     .5397     .3289
Dark series:                                                                                                    
  Dark A......................................  6.7R 4.19/12.5....................     13.30     .5566     .3265
  Dark B......................................  7.0R 4.25/12.35...................     13.72     .5522     .3294
  Dark and purple.............................  7.5R 4.23/12.4....................     13.58     .5577     .3329
Orange:                                                                                                         
  Central series:                                                                                               
    Central color.............................  5.0YR 6.10/12.15..................     31.27     .5193     .4117
    Yellow and grayish A......................  5.8YR 6.22/11.7...................     32.69     .5114     .4155
    Yellow and grayish B......................  6.1YR 6.26/11.85..................     33.20     .5109     .4190
    Vivid.....................................  5.1YR 6.07/12.3...................     30.86     .5226     .4134
    Red and vivid A...........................  3.9YR 5.87/12.75..................     28.53     .5318     .4038
    Red and vivid B...........................  3.6YR 5.91/12.6...................     29.05     .5291     .4021
    Grayish...................................  4.9YR 6.10/11.9...................     31.22     .5170     .4089
Light series:                                                                                                   
  Light and vivid A...........................  5.8YR 6.78/12.7...................     39.94     .5120     .4177
  Light and yellow............................  6.0YR 6.80/12.8...................     40.20     .5135     .4198
  Light and vivid B...........................  4.9YR 6.60/12.9...................     37.47     .5216     .4126
Dark series:                                                                                                    
  Dark and yellow.............................  5.8YR 5.98/11.0...................     29.87     .5052     .4132
  Dark A......................................  5.1YR 5.80/11.1...................     27.80     .5127     .4094
  Dark B......................................  5.0YR 5.80/11.0...................     27.67     .5109     .4068
Yellow:                                                                                                         
  Central series:                                                                                               
    Central color.............................  4.3Y 7.87/10.3....................     56.81     .4445     .4589
    Vivid A...................................  4.5Y 7.82/10.8....................     55.92     .4503     .4658
    Vivid B...................................  3.3Y 7.72/11.35...................     54.24     .4612     .4624
    Vivid and orange..........................  3.2Y 7.72/10.8....................     54.25     .4576     .4572
    Grayish A.................................  4.1Y 7.95/9.7.....................     58.18     .4380     .4516
    Grayish B.................................  5.1Y 8.06/9.05....................     60.12     .4272     .4508
    Green-yellow..............................  5.2Y 7.97/9.9.....................     58.53     .4356     .4605
Light series:                                                                                                   
  Light.......................................  5.4Y 8.59/10.5....................     70.19     .4351     .4628
  Light and green-yellow......................  5.4Y 8.56/11.2....................     69.59     .4414     .4692
  Light and vivid.............................  4.4Y 8.45/11.4....................     67.42     .4490     .4662
Dark series:                                                                                                    
  Dark and green-yellow.......................  4.4Y 7.57/9.7.....................     51.82     .4423     .4562
  Dark and orange A...........................  3.4Y 7.39/10.4....................     48.86     .4584     .4590
  Dark and orange B...........................  3.5Y 7.41/10.0....................     49.20     .4517     .4544
Green:                                                                                                          
  Central series:                                                                                               
    Central color.............................  9.75G 4.26/7.75...................     13.80     .2214     .3791
    Grayish...................................  10G 4.46/7.5......................     15.25     .2263     .3742
    Blue A....................................  1.4BG 4.20/7.4....................     13.36     .2151     .3625
    Blue B....................................  1.0BG 4.09/7.75...................     12.60     .2109     .3685
    Vivid.....................................  8.4G 4.09/8.05....................     12.59     .2183     .3954
    Vivid green-yellow........................  7.0G 4.23/8.0.....................     13.54     .2292     .4045
    Green-yellow..............................  7.85G 4.46/7.7....................     15.23     .2313     .3914
Light series:                                                                                                   
  Light and vivid.............................  9.5G 4.45/8.8.....................     15.21     .2141     .3863
  Light and blue..............................  0.2BG 4.31/8.8....................     14.12     .2069     .3814
  Light and green-yellow......................  8.3G 4.29/9.05....................     14.01     .2119     .4006
Dark series:                                                                                                    
  Dark and green-yellow.......................  7.1G 4.08/7.1.....................     12.55     .2354     .3972
  Dark and grayish............................  9.5G 4.11/6.9.....................     12.70     .2282     .3764
  Dark........................................  8.5G 3.97/7.2.....................     11.78     .2269     .3874
Blue:                                                                                                           
  Central series:                                                                                               
    Central color.............................  3.5PB 3.94/9.7....................     11.58     .1885     .1911
    Green and grayish A.......................  2.0PB 4.35/8.7....................     14.41     .1962     .2099
    Green and grayish B.......................  1.7PB 4.22/9.0....................     13.50     .1898     .2053
    Vivid.....................................  2.9PB 3.81/9.7....................     10.78     .1814     .1852
    Purple and vivid A........................  4.7PB 3.53/10.0...................      9.15     .1817     .1727

[[Page 350]]

                                                                                                                
    Purple and vivid B........................  5.0PB 3.71/9.9....................     10.20     .1888     .1788
    Grayish...................................  3.75PB 4.03/9.1...................     12.17     .1943     .1961
Light series:                                                                                                   
  Light and green A...........................  1.7PB 4.32/9.2....................     14.22     .1904     .2056
  Light and green B...........................  1.5PB 4.11/9.6....................     12.72     .1815     .1971
  Light and vivid.............................  3.2PB 3.95/10.05..................     11.70     .1831     .1868
Dark series:                                                                                                    
  Dark and grayish............................  3.9PB 4.01/8.7....................     12.04     .1982     .1992
  Dark and purple A...........................  4.8PB 3.67/9.3....................      9.95     .1918     .1831
  Dark and purple B...........................  5.2PB 3.80/9.05...................     10.76     .1985     .1885
Purple:                                                                                                         
  Central series:                                                                                               
    Central color.............................  9.5P 4.71/11.3....................     17.25     .3274     .2165
    Red.......................................  1.0RP 5.31/10.8...................     22.70     .3404     .2354
    Red and vivid A...........................  1.4RP 5.00/11.9...................     19.78     .3500     .2274
    Red and vivid B...........................  0.2RP 4.39/12.5...................     14.70     .3365     .2059
    Vivid.....................................  8.0P 4.04/12.0....................     12.23     .3098     .1916
    Blue......................................  7.0P 4.39/10.8....................     14.71     .3007     .2037
    Grayish...................................  8.8P 5.00/10.3....................     19.73     .3191     .2251
Light series:                                                                                                   
  Light and red A.............................  0.85RP 5.56/11.1..................     25.18     .3387     .2356
  Light and red B.............................  1.1RP 5.27/12.3...................     22.27     .3460     .2276
  Light and vivid.............................  9.2P 4.94/11.95...................     19.24     .3247     .2163
Dark series:                                                                                                    
  Dark and grayish............................  9.6P 4.70/10.9....................     17.19     .3283     .2204
  Dark and vivid..............................  8.4P 4.05/11.6....................     12.35     .3144     .1970
  Dark and blue...............................  7.5P 4.32/10.5....................     14.19     .3059     .2078
----------------------------------------------------------------------------------------------------------------


              Table 3.--Specification for Colors for Use With Labels Printed on Packagings Surfaces             
----------------------------------------------------------------------------------------------------------------
                CIE data for source C                    Red     Orange    Yellow     Green     Blue     Purple 
----------------------------------------------------------------------------------------------------------------
x...................................................      .424      .460      .417      .228      .200      .377
y...................................................      .306      .370      .392      .354      .175      .205
x...................................................      .571      .543      .490      .310      .255      .377
y...................................................      .306      .400      .442      .354      .250      .284
x...................................................      .424      .445      .390      .228      .177      .342
y...................................................      .350      .395      .430      .403      .194      .205
x...................................................      .571      .504      .440      .310      .230      .342
y...................................................      .350      .430      .492      .403      .267      .284
                                                                                                                
Y (high)............................................      23.0      41.6      72.6      20.6      15.9      21.2
Y (low).............................................       7.7      19.5      29.1       7.4       6.5       8.2
----------------------------------------------------------------------------------------------------------------

[Amdt. 172-50, 44 FR 9757, Feb. 15, 1979; Amdt. 172-50, 44 FR 10984, 
Feb. 26, 1979, as amended by Amdt. 172-50, 44 FR 22467, Apr. 16, 1979; 
50 FR 45731, Nov. 1, 1985; Amdt. 172-127, 59 FR 49133, Sept. 26, 1994]

                 Appendix B to Part 172--Trefoil Symbol

    Source: 60 FR 50306, Sept. 28, 1995, unless otherwise noted.
    1. Except as provided in paragraph 2 of this appendix, the trefoil 
symbol required for RADIOACTIVE labels and placards and required to be 
marked on certain packages of Class 7 materials must conform to the 
design and size requirements of this appendix.
    2. RADIOACTIVE labels and placards that were printed prior to April 
1, 1996, in conformance with the requirements of this subchapter in 
effect on March 30, 1996, may continue to be used.

[[Page 351]]

[GRAPHIC] [TIFF OMITTED] TR28SE95.005

1=Radius of Circle--
    Minimum dimensions
    4 mm (0.16 inch) for markings and labels
    12.5 mm (0.5 inch) for placards
2=1\1/2\ Radii
3=5 radii for markings and labels
    4\1/2\ radii for placards.
[60 FR 50306, Sept. 28, 1995, as amended by 172-143, 61 FR 20750, May 8, 
1996]

[[Page 352]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.061


[[Page 353]]





PART 173--SHIPPERS--GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS--Table of Contents




                           Subpart A--General

Sec.
173.1  Purpose and scope.
173.2  Hazardous materials classes and index to hazard class 
          definitions.
173.2a  Classification of a material having more than one hazard.
173.3  Packaging and exceptions.
173.4  Small quantity exceptions.
173.5  Agricultural operations.
173.5a  Oilfield service vehicles.
173.6  Materials of trade exceptions.
173.7  U.S. Government material.
173.8  Exceptions for non-specification packagings used in intrastate 
          transportation.
173.9  Cars, truck bodies, freight containers, or trailers containing 
          lading which has been fumigated or treated with Class 3, 
          Division 2.1, 2.3, or 6.1 materials.
173.10  Tank car shipments.
173.12  Exceptions for shipment of waste materials.
173.13  Exceptions for Class 3, Divisions 4.1, 4.2, 4.3, 5.1, 6.1, and 
          Classes 8 and 9 materials.

    Subpart B--Preparation of Hazardous Materials for Transportation

173.21  Forbidden materials and packages.
173.22  Shipper's responsibility.
173.22a  Use of packagings authorized under exemptions.
173.23  Previously authorized packaging.
173.24  General requirements for packagings and packages.
173.24a  Additional general requirements for non-bulk packagings and 
          packages.
173.24b  Additional general requirements for bulk packagings.
173.25  Authorized packages and overpacks.
173.26  Quantity limitations.
173.27  General requirements for transportation by aircraft.
173.28  Reuse, reconditioning and remanufacture of packagings.
173.29  Empty packagings.
173.30  Loading and unloading of transport vehicles.
173.31  Use of tank cars.
173.32  Qualification, maintenance and use of portable tanks other than 
          Specification IM portable tanks.
173.32a  Approval of Specification IM portable tanks.
173.32b  Periodic testing and inspection of Specification IM portable 
          tanks.
173.32c  Use of Specification IM portable tanks.
173.33  Hazardous materials in cargo tank motor vehicles.
173.34  Qualification, maintenance, and use of cylinders.
173.35  Hazardous materials in intermediate bulk containers.
173.40  General packaging requirements for poisonous materials required 
          to be packaged in cylinders.

    Subpart C--Definitions, Classification and Packaging for Class 1

173.50  Class 1--Definitions.
173.51  Authorization to offer and transport explosives.
173.52  Classification codes and compatibility groups of explosives.
173.53  Provisions for using old classifications of explosives.
173.54  Forbidden explosives.
173.55  [Reserved]
173.56  New explosives--definition and procedures for classification and 
          approval.
173.57  Acceptance criteria for new explosives.
173.58  Assignment of class and division for new explosives.
173.59  Description of terms for explosives.
173.60  General packaging requirements for explosives.
173.61  Mixed packaging requirements.
173.62  Specific packaging requirements for explosives.
173.63  Packaging exceptions.

 Subpart D--Definitions, Classification, Packing Group Assignments and 
    Exceptions for Hazardous Material Other Than Class 1 and Class 7

173.115  Class 2, Divisions 2.1, 2.2, and 2.3--Definitions.
173.116  Class 2--Assignment of hazard zone.
173.117--173.119  [Reserved]
173.120  Class 3--Definitions.
173.121  Class 3--Assignment of packing group.
173.124  Class 4, Divisions 4.1, 4.2 and 4.3--Definitions.
173.125  Class 4--Assignment of packing group.
173.127  Class 5, Division 5.1--Definition and assignment of packing 
          groups.
173.128  Class 5, Division 5.2--Definitions and types.
173.129  Class 5, Division 5.2--Assignment of packing group.
173.132  Class 6, Division 6.1--Definitions.
173.133  Assignment of packing group and hazard zones for Division 6.1 
          materials.
173.134  Class 6, Division 6.2--Definitions, exceptions and packing 
          group assignments.
173.136  Class 8--Definitions.
173.137  Class 8--Assignment of packing group.
173.140  Class 9--Definitions.

[[Page 354]]

173.141  Class 9--Assignment of packing group.
173.144  Other Regulated Materials (ORM)--Definitions.
173.145  Other Regulated Materials--Assignment of packing group.
173.150  Exceptions for Class 3 (flammable) and combustible liquids.
173.151  Exceptions for Class 4.
173.152  Exceptions for Division 5.1 (oxidizers) and Division 5.2 
          (organic peroxides).
173.153  Exceptions for Division 6.1 (poisonous materials).
173.154  Exceptions for Class 8 (corrosive materials).
173.155  Exceptions for Class 9 (miscellaneous hazardous materials).
173.156  Exceptions for ORM materials.

Subpart E--Non-bulk Packaging for Hazardous Materials Other Than Class 1 
                               and Class 7

173.158  Nitric acid.
173.159  Batteries, wet.
173.160  Bombs, smoke, non-explosive (corrosive).
173.161  Chemical kits.
173.162  Gallium.
173.163  Hydrogen fluoride.
173.164  Mercury (metallic and articles containing mercury).
173.166  Air bag inflators, air bag modules and seat-belt pretensioners.
173.170  Black powder for small arms.
173.171  Smokeless powder for small arms.
173.172  Aircraft hydraulic power unit fuel tank.
173.173  Paint, paint-related material, adhesives and ink and resins.
173.174  Refrigerating machines.
173.181  Pyrophoric materials (liquids).
173.182  Barium azide--50 percent or more water wet.
173.183  Nitrocellulose base film.
173.184  Highway or rail fusee.
173.185  Lithium batteries and cells.
173.186  Matches.
173.187  Pyrophoric solids, metals or alloys, n.o.s.
173.188  White or yellow phosphorous.
173.189  Batteries containing sodium or cells containing sodium.
173.192  Packaging for certain Packing Group I poisonous materials.
173.193  Bromoacetone, methyl bromide, chloropicrin and methyl bromide 
          or methyl chloride mixtures, etc.
173.194  Gas identification sets.
173.195  Hydrogen cyanide, anhydrous, stabilized (hydrocyanic acid, 
          aqueous solution).
173.196  Infectious substances (etiologic agents).
173.197  Regulated medical waste.
173.198  Nickel carbonyl.
173.201  Non-bulk packagings for liquid hazardous materials in Packing 
          Group I.
173.202  Non-bulk packagings for liquid hazardous materials in Packing 
          Group II.
173.203  Non-bulk packagings for liquid hazardous materials in Packing 
          Group III.
173.204  Non-bulk, non-specification packagings for certain hazardous 
          materials.
173.205  Specification cylinders for liquid hazardous materials.
173.211  Non-bulk packagings for solid hazardous materials in Packing 
          Group I.
173.212  Non-bulk packagings for solid hazardous materials in Packing 
          Group II.
173.213  Non-bulk packagings for solid hazardous materials in Packing 
          Group III.
173.214  Packagings which require approval by the Associate 
          Administrator for Hazardous Materials Safety.
173.216  Asbestos, blue, brown, or white.
173.217  Carbon dioxide, solid (dry ice).
173.218  Fish meal or fish scrap.
173.219  Life-saving appliances.
173.220  Internal combustion engines, self-propelled vehicles, and 
          mechanical equipment containing internal combustion engines or 
          wet batteries.
173.221  Polymeric beads, expandable.
173.222  Wheelchairs equipped with wet electric storage batteries.
173.224  Packaging and control and emergency temperatures for self-
          reactive materials.
173.225  Packaging requirements and other provisions for organic 
          peroxides.
173.226  Materials poisonous by inhalation, Division 6.1, Packing Group 
          I, Hazard Zone A.
173.227  Materials poisonous by inhalation, Division 6.1, Packing Group 
          I, Hazard Zone B.
173.228  Bromine pentaflouride or bromine trifluoride.
173.229  Chloric acid solution or chlorine dioxide hydrate, frozen.

Subpart F--Bulk Packaging for Hazardous Materials Other Than Class 1 and 
                                 Class 7

173.240  Bulk packaging for certain low hazard solid materials.
173.241  Bulk packaging for certain low hazard liquid and solid 
          materials.
173.242  Bulk packagings for certain medium hazard liquids and solids, 
          including solids with dual hazards.
173.243  Bulk packaging for certain high hazard liquids and dual hazard 
          materials which pose a moderate hazard.
173.244  Bulk packaging for certain pyrophoric liquids (Division 4.2), 
          dangerous when wet (Division 4.3) materials, and poisonous 
          liquids with inhalation hazards (Division 6.1).

[[Page 355]]

173.245  Bulk packaging for extremely hazardous materials such as 
          poisonous gases (Division 2.3).
173.247  Bulk packaging for certain elevated temperature materials 
          (Class 9) and certain flammable elevated temperature materials 
          (Class 3).
173.249  Bromine.

               Subpart G--Gases; Preparation and Packaging

173.300  [Reserved]
173.300a  Approval of independent inspection agency.
173.300b  Approval of non-domestic chemical analyses and tests.
173.300c  Termination of approval.
173.301  General requirements for shipment of compressed gases in 
          cylinders and spherical pressure vessels.
173.302  Charging of cylinders with non-liquefied compressed gases.
173.303  Charging of cylinders with compressed gas in solution 
          (acetylene).
173.304  Charging of cylinders with liquefied compressed gas.
173.305  Charging of cylinders with a mixture of compressed gas and 
          other material.
173.306  Limited quantities of compressed gases.
173.307  Exceptions for compressed gases.
173.308  Cigarette lighter or other similar device charged with fuel.
173.309  Fire extinguishers.
173.314  Compressed gases in tank cars and multi-unit tank cars 
          (effective July 1, 1996).
173.314  Requirements for compressed gases in tank car tanks (effective 
          until July 1, 1996).
173.315  Compressed gases in cargo tanks and portable tanks.
173.316  Cryogenic liquids in cylinders.
173.318  Cryogenic liquids in cargo tanks.
173.319  Cryogenic liquids in tank cars.
173.320  Cryogenic liquids; exceptions.
173.321  Ethylamine.
173.322  Ethyl chloride.
173.323  Ethylene oxide.
173.334  Organic phosphates mixed with compressed gas.
173.335  Gas generator assemblies.
173.336  Nitrogen dioxide, liquefied, or dinitrogen tetroxide, 
          liquefied.
173.337  Nitric oxide.
173.338  Tungsten hexafluoride.
173.340  Tear gas devices.

                          Subpart H--[Reserved]

                Subpart I-Class 7 (Radioactive) Materials

173.401   Scope.
173.403   Definitions.
173.410   General design requirements.
173.411   Industrial packagings.
173.412   Additional design requirements for Type A packages.
173.413   Requirements for Type B packages.
173.415   Authorized Type A packages.
173.416   Authorized Type B packages.
173.417   Authorized fissile materials packages.
173.418   Authorized packages--pyrophoric Class 7 (radioactive) 
          materials.
173.419   Authorized packages--oxidizing Class 7 (radioactive) 
          materials.
173.420   Uranium hexafluoride (fissile, fissile excepted and non-
          fissile).
173.421   Excepted packages for limited quantities of Class 7 
          (radioactive) materials.
173.422   Additional requirements for excepted packages containing Class 
          7 (radioactive) materials.
173.423   Requirements for multiple hazard limited quantity Class 7 
          (radioactive) materials.
173.424   Excepted packages for radioactive instruments and articles.
173.425   Table of activity limits--excepted quantities and articles.
173.426   Excepted packages for articles containing natural uranium or 
          thorium.
173.427   Transport requirements for low specific activity (LSA) Class 7 
          (radioactive) materials and surface contaminated objects 
          (SCO).
173.428   Empty Class 7 (radioactive) materials packaging.
173.431   Activity limits for Type A and Type B packages.
173.433   Requirements for determining A1 and A2 
          values for radionuclides and for the listing of radionuclides 
          on shipping papers and labels.
173.434   Activity-mass relationships for uranium and natural thorium.
173.435   Table of A1 and A2 values for 
          radionuclides.
173.441   Radiation level limitations.
173.442   Thermal limitations.
173.443   Contamination control.
173.447   Storage incident to transportation--general requirements.
173.448   General transportation requirements.
173.453   Fissile materials--exceptions.
173.457   Transportation of fissile material, controlled shipments--
          specific requirements.
173.459   Mixing of fissile material packages.
173.461   Demonstration of compliance with tests.
173.462   Preparation of specimens for testing.
173.465   Type A packaging tests.
173.466   Additional tests for Type A packagings designed for liquids 
          and gases.
173.467   Tests for demonstrating the ability of Type B and fissile 
          materials

[[Page 356]]

          packagings to withstand accident conditions in transportation.
173.468   Test for LSA-III material.
173.469   Tests for special form Class 7 (radioactive) materials.
173.471   Requirements for U.S. Nuclear Regulatory Commission approved 
          packages.
173.472   Requirements for exporting DOT Specification Type B and 
          fissile packages.
173.473   Requirements for foreign-made packages.
173.474   Quality control for construction of packaging.
173.475   Quality control requirements prior to each shipment of Class 7 
          (radioactive) materials.
173.476   Approval of special form Class 7 (radioactive) materials.

                        Subparts J-O--[Reserved]

Appendix A to Part 173--[Reserved]
Appendix B to Part 173--Procedure for Testing Chemical Compatibility and 
          Rate of Permeation in Plastic Packaging and Receptacles
Appendix C to Part 173--Procedure for Base-level Vibration Testing
Appendix D to Part 173--Test Methods for Dynamite (Explosive, Blasting, 
          Type A)
Appendix E -- G to Part 173 [Reserved]
Appendix H to Part 173--Method of Testing for Sustained Combustibility

    Authority:  49 U.S.C. 5101-5127, 44701; 49 CFR 1.45, 1.53.



                           Subpart A--General



Sec. 173.1  Purpose and scope.

    (a) This part includes:
    (1) Definitions of hazardous materials for transportation purposes;
    (2) Requirements to be observed in preparing hazardous materials for 
shipment by air, highway, rail, or water, or any combination thereof; 
and
    (3) Inspection, testing, and retesting responsibilities for persons 
who retest, recondition, maintain, repair and rebuild containers used or 
intended for use in the transportation of hazardous materials.
    (b) A shipment of hazardous materials that is not prepared in 
accordance with this subchapter may not be offered for transportation by 
air, highway, rail, or water. It is the responsibility of each hazmat 
employer subject to the requirements of this subchapter to ensure that 
each hazmat employee is trained in accordance with the requirements 
prescribed in this subchapter. It is the duty of each person who offers 
hazardous materials for transportation to instruct each of his officers, 
agents, and employees having any responsibility for preparing hazardous 
materials for shipment as to applicable regulations in this subchapter.
    (c) When a person other than the person preparing a hazardous 
material for shipment performs a function required by this part, that 
person shall perform the function in accordance with this part.
    (d) In general, the Hazardous Materials Regulations (HMR) contained 
in this subchapter are based on the Recommendations of the United 
Nations Committee of Experts on the Transport of Dangerous Goods and are 
consistent with international regulations issued by the International 
Civil Aviation Organization (ICAO Technical Instructions) and the 
International Maritime Organization (IMDG Code). However, the HMR are 
not consistent in all respects with the UN Recommendations, the ICAO 
Technical Instructions or the IMDG Code, and compliance with the HMR 
will not guarantee acceptance by regulatory bodies outside of the United 
States.
[Amdt. 173-94, 41 FR 16062, Apr. 15, 1976, as amended by Amdt. 173-100, 
41 FR 40476, Sept. 20, 1976; Amdt. 173-161, 48 FR 2655, Jan. 20, 1983; 
Amdt. 173-224, 55 FR 52606, Dec. 21, 1990; Amdt. 173-231, 57 FR 20953, 
May 15, 1992]



Sec. 173.2  Hazardous materials classes and index to hazard class definitions.

    The hazard class of a hazardous material is indicated either by its 
class (or division) number, its class name, or by the letters ``ORM-D''. 
The following table lists class numbers, division numbers, class or 
division names and those sections of this subchapter which contain 
definitions for classifying hazardous materials, including forbidden 
materials.

[[Page 357]]



                                                                        
------------------------------------------------------------------------
                                                                49 CFR  
                   Division                                   reference 
   Class No.       No. (if      Name of class or division        for    
                     any)                                    definitions
------------------------------------------------------------------------
None             ...........  Forbidden materials..........       173.21
None             ...........  Forbidden explosives.........       173.54
1                        1.1  Explosives (with a mass             173.50
                               explosion hazard).                       
1                        1.2  Explosives (with a projection       173.50
                               hazard).                                 
1                        1.3  Explosives (with                    173.50
                               predominately a fire hazard).            
1                        1.4  Explosives (with no                 173.50
                               significant blast hazard).               
1                        1.5  Very insensitive explosives;        173.50
                               blasting agents.                         
1                        1.6  Extremely insensitive               173.50
                               detonating substances.                   
2                        2.1  Flammable gas................      173.115
2                        2.2  Non-flammable compressed gas.      173.115
2                        2.3  Poisonous gas................      173.115
3                ...........  Flammable and combustible          173.120
                               liquid.                                  
4                        4.1  Flammable solid..............      173.124
4                        4.2  Spontaneously combustible          173.124
                               material.                                
4                        4.3  Dangerous when wet material..      173.124
5                        5.1  Oxidizer.....................      173.127
5                        5.2  Organic peroxide.............      173.128
6                        6.1  Poisonous materials..........      173.132
6                        6.2  Infectious substance               173.134
                               (Etiologic agent).                       
7                ...........  Radioactive material.........      173.403
8                ...........  Corrosive material...........      173.136
9                ...........  Miscellaneous hazardous            173.140
                               material.                                
None             ...........  Other regulated material: ORM-     173.144
                               D.                                       
------------------------------------------------------------------------

[Amdt. 173-224, 55 FR 52606, Dec. 21, 1990, as amended at 57 FR 45460, 
Oct. 1, 1992; Amdt. 173-234, 58 FR 51531, Oct. 1, 1993]



Sec. 173.2a  Classification of a material having more than one hazard.

    (a) Classification of a material having more than one hazard. Except 
as provided in paragraph (c) of this section, a material not 
specifically listed in the Sec. 172.101 Table that meets the definition 
of more than one hazard class or division as defined in this part, shall 
be classed according to the highest applicable hazard class of the 
following hazard classes, which are listed in descending order of 
hazard:
    (1) Class 7 (radioactive materials, other than limited quantities).
    (2) Division 2.3 (poisonous gases).
    (3) Division 2.1 (flammable gases).
    (4) Division 2.2 (nonflammable gases).
    (5) Division 6.1 (poisonous liquids), Packing Group I, poisonous-by-
inhalation only.
    (6) A material that meets the definition of a pyrophoric material in 
Sec. 173.124(b)(1) of this subchapter (Division 4.2).
    (7) A material that meets the definition of a self-reactive material 
in Sec. 173.124(a)(2) of this subchapter (Division 4.1).
    (8) Class 3 (flammable liquids), Class 8 (corrosive materials), 
Division 4.1 (flammable solids), Division 4.2 (spontaneously combustible 
materials), Division 4.3 (dangerous when wet materials), Division 5.1 
(oxidizers) or Division 6.1 (poisonous liquids or solids other than 
Packing Group I, poisonous-by-inhalation). The hazard class and packing 
group for a material meeting more than one of these hazards shall be 
determined using the precedence table in paragraph (b) of this section.
    (9) Combustible liquids.
    (10) Class 9 (miscellaneous hazardous materials).
    (b) Precedence of hazard table for Classes 3 and 8 and Divisions 
4.1, 4.2, 4.3, 5.1 and 6.1. The following table ranks those materials 
that meet the definition of Classes 3 and 8 and Divisions 4.1, 4.2, 4.3, 
5.1 and 6.1:

[[Page 358]]



                                                                                   Precedence of Hazard Table                                                                                   
                                                                                [Hazard class and packing group]                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                           5.1 I  5.1 II  5.1 III    6.1, I   6.1, I            6.1     8, I      8, I      8, II     8, II    8, III    8, III 
                                                              4.2    4.3    \1\     \1\     \1\      dermal    oral   6.1 II    III    liquid     solid    liquid     solid    liquid     solid 
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
3    I.....................................................  .....  .....  .....  ......  .......        3       3       3       3         3     (\3\)         3     (\3\)         3     (\3\)  
3    II....................................................  .....  .....  .....  ......  .......        3       3       3       3         8     (\3\)         3     (\3\)         3     (\3\)  
3    III...................................................  .....  .....  .....  ......  .......        6.1     6.1     6.1    34         8     (\3\)         8     (\3\)         3     (\3\)  
4.1  II \2\................................................    4.2    4.3    5.1     4.1     4.1         6.1     6.1     4.1     4.1   (\3\)         8     (\3\)         4.1   (\3\)         4.1
4.1  III \2\...............................................    4.2    4.3    5.1     4.1     4.1         6.1     6.1     6.1     4.1   (\3\)         8     (\3\)         8     (\3\)         4.1
4.2  II....................................................  .....    4.3    5.1     4.2     4.2         6.1     6.1     4.2     4.2       8         8         4.2       4.2       4.2       4.2
4.2  III...................................................  .....    4.3    5.1     5.1     4.2         6.1     6.1     6.1     4.2       8         8         8         8         4.2       4.2
4.3  I.....................................................  .....  .....    5.1     4.3     4.3         6.1     4.3     4.3     4.3       4.3       4.3       4.3       4.3       4.3       4.3
4.3  II....................................................  .....  .....    5.1     4.3     4.3         6.1     4.3     4.3     4.3       8         8         8         4.3       4.3       4.3
4.3  III...................................................  .....  .....    5.1     5.1     4.3         6.1     6.1     6.1     4.3       8         8         8         8         4.3       4.3
5.1  I \1\.................................................  .....  .....  .....  ......  .......        5.1     5.1     5.1     5.1       5.1       5.1       5.1       5.1       5.1       5.1
5.1  II \1\................................................  .....  .....  .....  ......  .......        6.1     5.1     5.1     5.1       8         8         8         5.1       5.1       5.1
5.1  III \1\...............................................  .....  .....  .....  ......  .......        6.1     6.1     6.1     5.1       8         8         8         8         5.1       5.1
6.1  I, Dermal.............................................  .....  .....  .....  ......  .......  .........  ......  ......  ......       8         6.1       6.1       6.1       6.1       6.1
6.1  I, Oral...............................................  .....  .....  .....  ......  .......  .........  ......  ......  ......       8         6.1       6.1       6.1       6.1       6.1
6.1  II, Inhalation........................................  .....  .....  .....  ......  .......  .........  ......  ......  ......       8         6.1       6.1       6.1       6.1       6.1
6.1  II, Dermal............................................  .....  .....  .....  ......  .......  .........  ......  ......  ......       8         6.1       8         6.1       6.1       6.1
6.1  II, Oral..............................................  .....  .....  .....  ......  .......  .........  ......  ......  ......       8         8         8         6.1       6.1       6.1
6.1  III...................................................  .....  .....  .....  ......  .......  .........  ......  ......  ......       8         8         8         8         8         8  
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ There are at present no established criteria for determining Packing Groups for liquids in Division 5.1. For the time being, the degree of hazard is to be assessed by analogy with listed  
  substances, allocating the substances to Packing Group I, great; II, medium; or III, minor danger.                                                                                            
\2\ Substances of Division 4.1 other than self-reactive substances.                                                                                                                             
\3\ Denotes an impossible combination.                                                                                                                                                          
\4\ For pesticides only, where a material has the hazards of Class 3, Packing Group III, and Division 6.1, Packing Group III, the primary hazard is Division 6.1, Packing Group III.            



[[Page 359]]

    Note 1: The most stringent packing group assigned to a hazard of the 
material takes precedence over other packing groups; for example, a 
material meeting Class 3 PG II and Division 6.1 PG I (oral toxicity) is 
classified as Class 3 PG I.
    Note 2: A material which meets the definition of Class 8 and has an 
inhalation toxicity by dusts and mists which meets criteria for Packing 
Group I specified in Sec. 173.133(a)(1) must be classed as Division 6.1 
if the oral or dermal toxicity meets criteria for Packing Group I or II. 
If the oral or dermal toxicity meets criteria for Packing Group III or 
less, the material must be classed as Class 8.

    (c) The following materials are not subject to the provisions of 
paragraph (a) of this section because of their unique properties:
    (1) A Class 1 (explosive) material that meets any other hazard class 
or division as defined in this part shall be assigned a division in 
Class 1. Class 1 materials shall be classed and approved in accordance 
with Sec. 173.56 of this part;
    (2) A Division 5.2 (organic peroxide) material that meets the 
definition of any other hazard class or division as defined in this 
part, shall be classed as Division 5.2;
    (3) A Division 6.2 (infectious substance) material that also meets 
the definition of another hazard class or division, other than Class 7, 
or that also is a limited quantity Class 7 material, shall be classed as 
Division 6.2;
    (4) A material that meets the definition of a wetted explosive in 
Sec. 173.124(a)(1) of this subchapter (Division 4.1). Wetted explosives 
are either specifically listed in the Sec. 172.101 Table or are approved 
by the Associate Administrator for Hazardous Materials Safety (see 
Sec. 173.124(a)(1) of this subchapter); and
    (5) A limited quantity of a Class 7 (radioactive) material that 
meets the definition for more than one hazard class or division shall be 
classed in accordance with Sec. 173.423.
[Amdt. 173-224, 55 FR 52606, Dec. 21, 1990, as amended at 56 FR 66264, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67490, Dec. 29, 1994; Amdt. 173-247, 
60 FR 48787, Sept. 20, 1995; Amdt. 173-244, 60 FR 50307, Sept. 28, 1995]



Sec. 173.3  Packaging and exceptions.

    (a) The packaging of hazardous materials for transportation by air, 
highway, rail, or water must be as specified in this part. Methods of 
manufacture, packing, and storage of hazardous materials, that affect 
safety in transportation, must be open to inspection by a duly 
authorized representative of the initial carrier or of the Department. 
Methods of manufacture and related functions necessary for completion of 
a DOT specification or U.N. standard packaging must be open to 
inspection by a representative of the Department.
    (b) The regulations setting forth packaging requirements for a 
specific material apply to all modes of transportation unless otherwise 
stated, or unless exceptions from packaging requirements are authorized.
    (c) Salvage drums. Packages of hazardous materials that are damaged, 
defective, or found leaking and hazardous materials that have spilled or 
leaked may be placed in a metal or plastic removable head salvage drum 
that is compatible with the lading and shipped for repackaging or 
disposal under the following conditions:
    (1) Except as provided in paragraph (c)(7) of this section, the drum 
must be a UN 1A2, 1B2, 1N2 or 1H2 tested and marked for Packing Group 
III or higher performance standards for liquids or solids and a 
leakproofness test of 20 kPa (3 psi). Alternatively, a drum manufactured 
and marked prior to October 1, 1993 as a salvage drum, in accordance 
with the provisions of this section in effect on September 30, 1991, is 
authorized. Capacity of the drum may not exceed 450 L (119 gallons).
    (2) Each drum shall be provided when necessary with sufficient 
cushioning and absorption material to prevent excessive movement of the 
damaged package and to eliminate the presence of any free liquid at the 
time the salvage drum is closed. All cushioning and absorbent material 
used in the drum must be compatible with the hazardous material.
    (3) Each salvage packaging must be marked with the proper shipping 
name of the hazardous material inside the packaging and the name and 
address of the consignee. In addition, the packaging must be marked 
``SALVAGE'' or ``SALVAGE DRUM''.
    (4) Each drum shall be labeled as prescribed for the respective 
material.

[[Page 360]]

    (5) The shipper shall prepare shipping papers in accordance with 
subpart C of part 172 of this subchapter.
    (6) The overpack requirements of Sec. 173.25 do not apply to drums 
used in accordance with this paragraph.
    (7) A salvage packaging marked ``T'' in accordance with applicable 
provisions in the UN Recommendations may be used.
[Amdt. 173-224, 55 FR 52607, Dec. 21, 1990, as amended at 56 FR 66265, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51531, Oct. 1, 1993; Amdt. 173-261, 
62 FR 24719, May 6, 1997]



Sec. 173.4  Small quantity exceptions.

    (a) Small quantities of Class 3, Division 4.1, Division 4.2 (PG II 
and III), Division 4.3 (PG II and III), Division 5.1, Division 5.2, 
Division 6.1, Class 7, Class 8, and Class 9 materials that also meet the 
definition of one or more of these hazard classes, are not subject to 
any other requirements of this subchapter when--
    (1) The maximum quantity of material per inner receptacle is limited 
to:
    (i) Thirty (30) ml (1 ounce) for authorized liquids, other than 
Division 6.1, Packing Group I, materials;
    (ii) Thirty (30) g (1 ounce) for authorized solids, other than 
Division 6.1, Packing Group I, materials;
    (iii) One (1) g (0.04 ounce) for authorized materials classed as 
Division 6.1, Packing Group I; and
    (iv) An activity level not exceeding that specified in 
Secs. 173.421, 173.424, 173.425 or 173.426, as appropriate, for a 
package containing a Class 7 (radioactive) material.
    (2) With the exception of temperature sensing devices, each inner 
receptacle:
    (i) Is not liquid-full at 55  deg.C (131  deg.F), and
    (ii) Is constructed of plastic having a minimum thickness of no less 
than 0.2 mm (0.008 inch), or earthenware, glass, or metal;
    (3) Each inner receptacle with a removable closure has its closure 
held securely in place with wire, tape, or other positive means;
    (4) Unless equivalent cushioning and absorbent material surrounds 
the inside packaging, each inner receptacle is securely packed in an 
inside packaging with cushioning and absorbent material that:
    (i) Will not react chemically with the material, and
    (ii) Is capable of absorbing the entire contents (if a liquid) of 
the receptacle;
    (5) The inside packaging is securely packed in a strong outside 
packaging;
    (6) The completed package, as demonstrated by prototype testing, is 
capable of sustaining--
    (i) Each of the following free drops made from a height of 1.8 m 
(5.9 feet) directly onto a solid unyielding surface without breakage or 
leakage from any inner receptacle and without a substantial reduction in 
the effectiveness of the package:
    (A) One drop flat on bottom;
    (B) One drop flat on top;
    (C) One drop flat on the long side;
    (D) One drop flat on the short side; and
    (E) One drop on a corner at the junction of three intersecting 
edges; and
    (ii) A compressive load as specified in Sec. 178.606(c) of this 
subchapter.
    (7) Placement of the material in the package or packing different 
materials in the package does not result in a violation of Sec. 173.21;
    (8) The gross mass of the completed package does not exceed 29 kg 
(64 pounds);
    (9) The package is not opened or otherwise altered until it is no 
longer in commerce; and
    (10) The shipper certifies conformance with this section by marking 
the outside of the package with the statement ``This package conforms to 
49 CFR 173.4'' or, alternatively, until October 1, 2001, with the 
statement ``This package conforms to the conditions and limitations 
specified in 49 CFR 173.4.''
    (b) A package containing a Class 7 (radioactive) material also must 
conform to the requirements of Sec. 173.421(a)(1) through (a)(5) or 
Sec. 173.424(a) through (g), as appropriate.
    (c) Packages which contain a Class 2, Division 4.2 (PG I), or 
Division 4.3 (PG I) material conforming to paragraphs (a)(1) through 
(a)(10) of this section may be offered for transportation or transported 
if specifically approved by

[[Page 361]]

the Associate Administrator for Hazardous Materials Safety.
[Amdt. 173-224, 55 FR 52608, Dec. 21, 1990, as amended at 56 FR 66265, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51531, Oct. 1, 1993; Amdt. 173-244, 
60 FR 50307, Sept. 28, 1995; Amdt. 173-253, 61 FR 27173, May 30, 1996]



Sec. 173.5  Agricultural operations.

    (a) The transportation of an agricultural product other than a Class 
2 material, over local roads between fields of the same farm, is 
excepted from the requirements of this subchapter when:
    (1) It is transported by a farmer who is an intrastate private motor 
carrier; and
    (2) The movement of the agricultural product conforms to 
requirements of the State in which it is transported and is specifically 
authorized by a State statute or regulation in effect before October 1, 
1998.
    (b) The transportation of an agricultural product to or from a farm, 
within 150 miles of the farm, is excepted from the requirements in 
subparts G and H of part 172 of this subchapter when:
    (1) It is transported by a farmer who is an intrastate private motor 
carrier;
    (2) The total amount of agricultural product being transported on a 
single vehicle does not exceed:
    (i) 7,300 kg (16,094 lbs.) of ammonium nitrate fertilizer properly 
classed as Division 5.1, PG III, in a bulk packaging, or
    (ii) 1900 L (502 gallons) for liquids or gases, or 2,300 kg (5,070 
lbs.) for solids, of any other agricultural product;
    (3) The packaging conforms to requirements of the State in which it 
is transported and is specifically authorized for transportation of the 
agricultural product by a State statute or regulation in effect on or 
before July 1, 1998; and
    (4) Each person having any responsibility for transporting the 
agricultural product or preparing the agricultural product for shipment 
has been instructed in the applicable requirements of this subchapter.
    (c) Formulated liquid agricultural products in specification 
packagings of 220 L (58 gallons) capacity, or less, with closures 
manifolded to a closed mixing system and equipped with positive dry 
disconnect devices may be transported by a private motor carrier between 
a final distribution point and an ultimate point of application or for 
loading aboard an airplane for aerial application.
    (d) See Sec. 173.315(m) pertaining to nurse tanks of anhydrous 
ammonia.
    (e) See Sec. 173.6 pertaining to materials of trade.
[Amdt. 173-259, 62 FR 1215, Jan. 8, 1997, as amended by Amdt. 173-262, 
62 FR 49566, Sept. 22, 1997]



Sec. 173.5a  Oilfield service vehicles.

    Notwithstanding Sec. 173.29 of this subchapter, a cargo tank mounted 
on a transport vehicle used in oilfield servicing operations is not 
subject to the specification requirements of this subchapter if--
    (a) The cargo tank and equipment contains only residual amounts 
(i.e., it is emptied so far as practicable) of a flammable liquid alone 
or in combination with water,
    (b) No flame producing device is operated during transportation, and
    (c) The proper shipping name is preceded by ``Residual'' on the 
shipping paper for each movement on a public highway.
[Amdt. 173-196, 51 FR 5971, Feb. 18, 1986]



Sec. 173.6  Materials of trade exceptions.

    When transported by motor vehicle in conformance with this section, 
a material of trade (see Sec. 171.8 of this subchapter) is not subject 
to any other requirements of this subchapter besides those set forth or 
referenced in this section.
    (a) Materials and amounts. A material of trade is limited to the 
following:
    (1) A Class 3, 8, 9, Division 4.1, 5.1, 5.2, 6.1, or ORM-D material 
contained in a packaging having a gross mass or capacity not over--
    (i) 0.5 kg (1 pound) or 0.5 L (1 pint) for a Packing Group I 
material;
    (ii) 30 kg (66 pounds) or 30 L (8 gallons) for a Packing Group II, 
Packing Group III, or ORM-D material;
    (iii) 1500 L (400 gallons) for a diluted mixture, not to exceed 2 
percent concentration, of a Class 9 material.
    (2) A Division 2.1 or 2.2 material in a cylinder with a gross weight 
not over 100 kg (220 pounds), or a permanently

[[Page 362]]

mounted tank manufactured to ASME standards of not more than 70 gallon 
water capacity for a non-liquefied Division 2.2 material with no 
subsidiary hazard.
    (3) A Division 4.3 material in Packing Group II or III contained in 
a packaging having a gross capacity not exceeding 30 ml (1 ounce).
    (4) This section does not apply to a hazardous material that is 
self-reactive (see Sec. 173.124), poisonous by inhalation (see 
Sec. 173.133), or a hazardous waste.
    (b) Packaging. (1) Packagings must be leak tight for liquids and 
gases, sift proof for solids, and be securely closed, secured against 
movement, and protected against damage.
    (2) Each material must be packaged in the manufacturer's original 
packaging, or a packaging of equal or greater strength and integrity.
    (3) Outer packagings are not required for receptacles (e.g., cans 
and bottles) that are secured against movement in cages, carts, bins, 
boxes or compartments.
    (4) For gasoline, a packaging must be made of metal or plastic and 
conform to the requirements of this subchapter or to the requirements of 
the Occupational Safety and Health Administration of the Department of 
Labor contained in 29 CFR 1910.106(d)(2) or 1926.152(a)(1).
    (5) A cylinder or other pressure vessel containing a Division 2.1 or 
2.2 material must conform to packaging, qualification, maintenance, and 
use requirements of this subchapter, except that outer packagings are 
not required. Manifolding of cylinders is authorized provided all valves 
are tightly closed.
    (c) Hazard communication. (1) A non-bulk packaging other than a 
cylinder (including a receptacle transported without an outer packaging) 
must be marked with a common name or proper shipping name to identify 
the material it contains, including the letters ``RQ'' if it contains a 
reportable quantity of a hazardous substance.
    (2) A bulk packaging containing a diluted mixture of a Class 9 
material must be marked on two opposing sides with the four-digit 
identification number of the material. The identification number must be 
displayed on orange panels or, alternatively, a white square-on-point 
configuration having the same outside dimensions as a placard (at least 
273 mm (10.8 inches) on a side), in the manner specified in Sec. 172.332 
(b) and(c) of this subchapter. Each digit in the identification number 
marking must be at least 25 mm (one inch) high and 6 mm (0.24 inch) 
wide.
    (3) A DOT specification cylinder (except DOT specification 39) must 
be marked and labeled as prescribed in this subchapter. Each DOT-39 
cylinder must display the markings specified in 178.65(i).
    (4) The operator of a motor vehicle that contains a material of 
trade must be informed of the presence of the hazardous material 
(including whether the package contains a reportable quantity) and must 
be informed of the requirements of this section.
    (d) Aggregate gross weight. Except for a material of trade 
authorized by paragraph (a)(1)(iii) of this section, the aggregate gross 
weight of all materials of trade on a motor vehicle may not exceed 200 
kg (440 pounds).
    (e) Other exceptions. A material of trade may be transported on a 
motor vehicle under the provisions of this section with other hazardous 
materials without affecting its eligibility for exceptions provided by 
this section.
[Amdt. 173-259, 62 FR 1216, Jan. 8, 1997, as amended by Amdt. 173-262, 
62 FR 49566, Sept. 22, 1997; 62 FR 51560, Oct. 1, 1997]



Sec. 173.7  U.S. Government material.

    (a) Hazardous materials offered for transportation by, for, or to 
the Department of Defense (DOD) of the U.S. Government, including 
commercial shipments pursuant to a DOD contract, must be packaged in 
accordance with the regulations in this subchapter or in packagings of 
equal or greater strength and efficiency as certified by DOD in 
accordance with the procedures prescribed by ``Performance Oriented 
Packaging of Hazardous Material, DLAR 4145.41/AR 700-143/AFR 71-5/
NAVSUPINST 4030.55/MCO 4030.40.'' Hazardous materials offered for 
transportation by DOD under this provision may be reshipped by any 
shipper to any consignee provided the original packaging has not been 
damaged or altered in any manner.

[[Page 363]]

    (1) Hazardous materials sold by the DOD in packagings that are not 
marked in accordance with the requirements of this subchapter may be 
shipped from DOD installations if the DOD certifies in writing that the 
packagings are equal to or greater in strength and efficiency than the 
packaging prescribed in this subchapter. The shipper shall obtain such a 
certification in duplicate for each shipment. He shall give one copy to 
the originating carrier and retain the other for no less than 1 year.
    (b) Shipments of hazardous materials, made by or under the direction 
or supervision of the U.S. Department of Energy (DOE) or the Department 
of Defense (DOD), for the purpose of national security, and which are 
escorted by personnel specifically designated by or under the authority 
of those agencies, are not subject to the requirements of this 
subchapter. For transportation by a motor vehicle or a rail car, the 
escorts must be in a separate transport vehicle from the transport 
vehicle carrying the hazardous materials that are excepted by this 
paragraph. A document certifying that the shipment is for the purpose of 
national security must be in the possession of the person in charge of 
providing security during transportation.
    (c) Shipments of explosive samples, not exceeding one gram net 
weight, offered by and consigned to the Bureau of Alcohol, Tobacco and 
Firearms (ATF) of the Department of the Treasury are not otherwise 
subject to the regulations in parts 110-189 of this subchapter when 
placed in a specifically designed multi-unit assembly packed in a strong 
outside packaging. The packaging must be of a type accepted by ATF as 
capable of precluding a propagation of any explosion outside the 
packaging. The second component from the outside of the packaging must 
be marked or tagged to indicate the presence of an explosive.
    (d) Notwithstanding the requirements of Secs. 173.416 and 173.417 of 
this subchapter, packagings made by or under the direction of the U.S. 
Department of Energy may be used for the transportation of Class 7 
materials when evaluated, approved, and certified by the Department of 
Energy against packaging standards equivalent to those specified in 10 
CFR part 71. Packages shipped in accordance with this paragraph shall be 
marked and otherwise prepared for shipment in a manner equivalent to 
that required by this subchapter for packagings approved by the Nuclear 
Regulatory Commission.
[29 FR 18671, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting Sec. 173.7, 
see the List of CFR Sections Affected appearing in the Finding Aids 
section of this volume.



Sec. 173.8  Exceptions for non-specification packagings used in intrastate transportation.

    (a) Non-specification bulk packagings. Notwithstanding requirements 
for specification packagings in subpart F of this part and parts 178 and 
180 of this subchapter, a non-specification bulk packaging may be used 
for transportation of a hazardous material by an intrastate motor 
carrier until July 1, 2000, in accordance with the provisions of 
paragraph (d) of this section.
    (b) Non-specification cargo tanks for petroleum products. 
Notwithstanding requirements for specification packagings in subpart F 
of this part and parts 178 and 180 of this subchapter, a non-
specification cargo tank motor vehicle having a capacity of less than 
13,250 liters (3,500 gallons) may be used by an intrastate motor carrier 
for transportation of a flammable liquid petroleum product in accordance 
with the provisions of paragraph (d) of this section.
    (c) Permanently secured non-bulk tanks for petroleum products. 
Notwithstanding requirements for specification packagings in subpart F 
of this part 173 and parts 178 and 180 of this subchapter, a non-
specification metal tank permanently secured to a transport vehicle and 
protected against leakage or damage in the event of a turnover, having a 
capacity of less than 450 liters (119 gallons), may be used by an 
intrastate motor carrier for transportation of a flammable liquid 
petroleum product in accordance with the provisions of paragraph (d) of 
this section.

[[Page 364]]

    (d) Additional requirements. A packaging used under the provisions 
of paragraphs (a), (b) or (c) of this section must--
    (1) Be operated by an intrastate motor carrier and in use as a 
packaging for hazardous material before July 1, 1998;
    (2) Be operated in conformance with the requirements of the State in 
which it is authorized;
    (3) Be specifically authorized by a State statute or regulation in 
effect before October 1, 1998, for use as a packaging for the hazardous 
material being transported;
    (4) Be offered for transportation and transported in conformance 
with all other applicable requirements of this subchapter;
    (5) Not be used to transport a flammable cryogenic liquid, hazardous 
substance, hazardous waste, or marine pollutant; and
    (6) On and after July 1, 2000, for a tank authorized under paragraph 
(b) or (c) of this section, conform to all requirements in part 180 
(except for Sec. 180.405(g)) of this subchapter in the same manner as 
required for a DOT specification MC 306 cargo tank motor vehicle.
[Amdt. 173-259, 62 FR 1216, Jan. 8, 1997, as amended by Amdt. 172-262, 
62 FR 49567, Sept. 22, 1997]



Sec. 173.9  Cars, truck bodies, freight containers, or trailers containing lading which has been fumigated or treated with Class 3, Division 2.1, 2.3, or 6.1 
          materials.

    (a) Delivery for transportation by rail carrier of any rail car, 
freight container, truck body, or trailer containing lading which has 
been fumigated or treated with Class 3 or Division 2.1 materials is 
prohibited until 48 hours have elapsed after such fumigation or 
treatment, or until the rail car, freight container, truck body or 
trailer has been ventilated so as to remove any danger of fire or 
explosion due to the presence of flammable vapors.
    (b) Any rail car, freight container, truck body or trailer 
containing lading which has been fumigated or treated with Division 6.1 
or Division 2.3 materials, such as carbolic acid, liquid or solid, 
chlorpicrin, hydrocyanic acid, methyl bromide, etc., must be placarded 
on each door or near thereto with the FUMIGANT placard prescribed in 
paragraph (c) of this section or a placard as required by the 
Environmental Protection Agency (EPA).
    (c) FUMIGANT placard. The FUMIGANT placard must consist of red 
letters on a white background which is at least 25 cm (9.8 inches) wide 
and 20 cm (7.9 inches) high. It must contain the name of the fumigant 
and other text as follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.062

    (d) See Sec. 174.615 of this subchapter for requirements for 
cleaning fumigated cars
    (e) See Sec. 176.76(h) of this subchapter for requirements for 
fumigated transport units on vessels.
[Amdt. 173-224, 55 FR 52608, Dec. 21, 1990, as amended by Amdt. 172-241, 
59 FR 67490, Dec. 29, 1994; 62 FR 51560, Oct. 1, 1997]

    Effective Date Note: By Amdt. 173-260, 62 FR 1234, Jan. 8, 1997, 
Sec. 173.9 was revised, effective Oct. 1, 1997. At 62 FR 39398, July 22, 
1997, the effective date was delayed until Oct. 1, 1998. For the 
convenience of the user the revised text is set forth as follows:

Sec. 173.9  Transport vehicles or freight containers containing lading 
          which has been fumigated.

    (a) For the purpose of this section, not including 49 CFR part 387, 
a rail car, freight container, truck body, or trailer in which the 
lading has been fumigated with any material, or is undergoing 
fumigation, is a package containing a hazardous material, unless the 
transport vehicle or freight container has been sufficiently aerated so 
that it does not pose an unreasonable risk to health and safety.
    (b) No person may offer for transportation or transport a rail car, 
freight container, truck body, or trailer in which the lading has been 
fumigated or treated with any material, or is undergoing fumigation, 
unless

[[Page 365]]

the FUMIGANT marking specified in paragraph (c) of this section is 
prominently displayed so that it can be seen by any person attempting to 
enter the interior of the transport vehicle or freight container. For 
domestic transportation, a hazard warning label authorized by EPA under 
40 CFR part 156 may be used as an alternative to the FUMIGANT marking.
    (c) FUMIGANT marking. (1) The FUMIGANT marking must consist of red 
letters on a white background that is at least 30 cm (11.8 inches) wide 
and at least 25 cm (9.8 inches) high. Except for size and color, the 
FUMIGANT marking must be as follows:


[[Page 366]]


[GRAPHIC] [TIFF OMITTED] TR08JA97.004


    (2) The ``*'' shall be replaced with the technical name of the 
fumigant.
    (d) No person may affix or display on a rail car, freight container, 
truck body, or trailer (a package) the FUMIGANT marking specified in 
paragraph (c) of this section, unless the lading has been fumigated or 
is undergoing fumigation.
    (e) The FUMIGANT marking required by paragraph (b) of this section 
must remain on the rail car, freight container, truck body, or trailer 
until:
    (1) The fumigated lading is unloaded; and

[[Page 367]]

    (2) The transport vehicle or freight container has undergone 
sufficient aeration to assure that it does not pose an unreasonable risk 
to health and safety.
    (f) For international shipments, transport documents must indicate 
the date of fumigation, type and amount of fumigant used, and 
instructions for disposal of any residual fumigant, including fumigation 
devices.
    (g) Any person subject to the requirements of this section, solely 
due to the fumigated lading, must be informed of the requirements of 
this section and the safety precautions necessary to protect themselves 
and others in the event of an incident or accident involving the 
fumigated lading.
    (h) Any person who offers for transportation or transports a rail 
car, freight container, truck body or trailer that is subject to this 
subchapter solely because of the hazardous materials designation 
specified in paragraph (a) of this section is not subject to any other 
requirements of this subchapter.
[Amdt. 173-260, 62 FR 1234, Jan. 8, 1997]



Sec. 173.10  Tank car shipments.

    (a) Tank cars containing any 2.1 material (including a cryogenic 
liquid) or Class 3 material with a flash point below 38 deg. C (100 deg. 
F), except liquid road asphalt or tar, may not be offered for 
transportation unless originally consigned or subsequently reconsigned 
to parties having private-siding (see Note 1 of this section) or to 
parties using railroad siding facilities which have been equipped for 
piping the liquid from tank cars to permanent storage tanks of 
sufficient capacity to receive contents of car.
    (b) A tank car containing any Class 2 material must not be offered 
for transportation unless the car is consigned for delivery (see 
paragraph (c) of this section) and unloading on a private track (see 
Note 1 of this section) except that where no private track is available, 
delivery and unloading on carrier tracks is permitted provided the 
following conditions are complied with:
    (1) Any tank car of DOT-106A or 110A type (see Secs. 179.300 and 
179.301 of this subchapter) may be offered for transportation and the 
loaded unit tanks may be removed from car frame on carrier tracks, 
provided the shipper has obtained from the delivering carrier and filed 
with originating carrier, written permission (see Note 2 of this 
section) for such removal. The consignee must furnish adequately safe 
mechanical hoist, obtained from the carrier if desirable, by which the 
tanks shall be lifted from the car and deposited directly upon vehicles 
furnished by the consignee for immediate removal from carrier property 
or tanks must be lifted by adequately safe mechanical hoist from car 
directly to vessels for further transportation
    (c) Any tank car of other than DOT-106A or 110A type (see 
Secs. 179.300 and 179.301 of this subchapter), containing anhydrous 
ammonia, liquefied hydrocarbon or liquefied petroleum gas, and having 
interior pipes of liquid and gas discharge valves equipped with check 
valves, may be consigned for delivery and unloading on carrier tracks, 
if the lading is piped directly from the car to permanent storage tanks 
of sufficient capacity to receive the entire contents of the car. Such 
cars may also be consigned for storage on a private track or on a 
carrier track when designated by the carrier for such storage.
    (d) For cars of the DOT-106A or 110A type (see Secs. 179.300 and 
179.301 of this subchapter), the tanks must be placed in position and 
attached to the car structure by the shipper.
    (e) Class 3 materials with a flash point below 38  deg.C (100 
deg.F) and Division 2.1 materials (including a cryogenic liquid) may not 
be loaded into tank cars on carrier property from tank trucks or drums.

    Note 1: For this purpose, a private track is a track outside of 
carrier's right-of-way, yard, and terminals, and of which the carrier 
does not own either the rails, ties, roadbed or right-of-way; or a track 
or portion of a track which is devoted to the purpose of its user, 
either by lease or written agreement; in which case the lease or written 
agreement will be considered as equivalent to ownership.
    Note 2: Carriers should give permission for the unloading of these 
containers on carrier tracks only where no private siding is available 
within reasonable trucking distance of final destination. The danger 
involved is the release of compressed gases due to accidental

[[Page 368]]

injury to container in handling. The exposure to this danger decreases 
directly with the isolation of the unloading point.

[29 FR 18773, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and by Amdt. 173-162, 48 FR 10226, Mar. 10, 1983, and amended by Amdt. 
173-180, 49 FR 42735, Oct. 24, 1984; Amdt. 173-207, 53 FR 38274, Sept. 
29, 1988; Amdt. 173-224, 55 FR 52608, Dec. 21, 1990; 56 FR 66265, Dec. 
20, 1991; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993]



Sec. 173.12  Exceptions for shipment of waste materials.

    (a) Open head drums. If a hazardous material that is a hazardous 
waste is required by this subchapter to be shipped in a closed head drum 
(i.e., a drum with a 7.0 cm (3 inches) or less bung opening) and the 
hazardous waste contains solids or semisolids that make its placement in 
a closed head drum impracticable, an equivalent (except for closure) 
open head drum may be used for the hazardous waste.
    (b) Lab packs. (1) Waste materials classed as Class or Division 3, 
4.1, 4.2, 4.3, 5.1, 6.1, 8, or 9 are excepted from the specification 
packaging requirements of this subchapter for combination packagings if 
packaged in accordance with this paragraph and transported for disposal 
or recovery by highway only. In addition, a generic description from the 
Sec. 172.101 Table may be used in place of specific chemical names, when 
two or more chemically compatible waste materials in the same hazard 
class are packaged in the same outside packaging.
    (2) Additional packaging requirements are as follows:
    (i) The outer packaging must be a UN 1A2 or UN 1B2 metal drum, a UN 
1D plywood drum, a UN 1G fiber drum or a UN 1H2 plastic drum tested and 
marked at least for the Packing Group III performance level for liquids 
or solids;
    (ii) The inner packagings must be either glass, not exceeding 4 L (1 
gallon) rated capacity, or metal or plastic, not exceeding 20 L (5.3 
gallons) rated capacity;
    (iii) Each outer packaging may contain only one class of hazardous 
material;
    (iv) Inner packagings containing liquid must be surrounded by a 
chemically compatible absorbent material in sufficient quantity to 
absorb the total liquid contents; and
    (v) Gross weight of the complete package may not exceed 205 kg (452 
lbs).
    (3) Prohibited materials. Materials meeting the definition of 
Division 6.1, Packing Group I, or Division 4.2, Packing Group I, and 
bromine pentafluoride; bromine trifluoride; chloric acid; and oleum 
(fuming sulfuric acid) may not be packaged or described under the 
provisions of this paragraph.
    (c) Reuse of packagings. A previously used packaging may be reused 
for the shipment of hazardous waste to designated facilities, not 
subject to the reconditioning and reuse provisions contained in 
Sec. 173.28 and part 178 of this subchapter, under the following 
conditions:
    (1) Except as authorized by this paragraph, the waste must be 
packaged in accordance with this part and offered for transportation in 
accordance with the requirements of this subchapter.
    (2) Transportation is performed by highway only.
    (3) A package is not offered for transportation less than 24 hours 
after it is finally closed for transportation, and each package is 
inspected for leakage and is found to be free from leaks immediately 
prior to being offered for transportation.
    (4) Each package is loaded by the shipper and unloaded by the 
consignee, unless the motor carrier is a private or contract carrier.
    (5) The packaging may be used only once under this paragraph and may 
not be used again for shipment of hazardous materials except in 
accordance with Sec. 173.28.
    (d) Technical names for n.o.s. descriptions. The requirements for 
the inclusion of technical names for n.o.s. descriptions on shipping 
papers and package markings, Secs. 172.203 and 172.301 of this 
subchapter, respectively, do not apply to packagings prepared in 
accordance with paragraph (b) of this section, except as follows:
    (1) Packages containing materials meeting the definition of a 
hazardous substance must be described as required in Sec. 172.203(c) of 
this subchapter and marked as required in Sec. 172.324 of this 
subchapter; and

[[Page 369]]

    (2) Packages containing hazardous materials subject to the 
provisions of Sec. 172.203(m) of this subchapter must be described in 
accordance with Sec. 172.203(m) of this subchapter.
[Amdt. 173-224, 55 FR 52609, Dec. 21, 1990, as amended at 56 FR 66265, 
Dec. 20, 1991; Amdt. 173-231, 57 FR 52939, Nov. 5, 1992; Amdt. 173-138, 
59 FR 49133, Sept. 26, 1994]



Sec. 173.13  Exceptions for Class 3, Divisions 4.1, 4.2, 4.3, 5.1, 6.1, and Classes 8 and 9 materials.

    (a) A Class 3, 8 or 9, or Division 4.1, 4.2, 4.3, 5.1, or 6.1 
material is excepted from the labeling and placarding requirements of 
this subchapter if prepared for transportation in accordance with the 
requirements of this section. A material that meets the definition of a 
material poisonous by inhalation may not be offered for transportation 
or transported under provisions of this section.
    (b) A hazardous material conforming to requirements of this section 
may be transported by motor vehicle, rail car, or cargo-only aircraft. 
Only hazardous materials permitted to be transported aboard a cargo-only 
aircraft by column (9B) of the Hazardous Materials Table in Sec. 172.101 
of this subchapter are authorized for transport aboard cargo-only 
aircraft pursuant to the provisions of this section.
    (c) A hazardous material permitted by paragraph (a) of this section 
must be packaged as follows:
    (1) For liquids:
    (i) The hazardous material must be placed in a tightly closed glass, 
plastic or metal inner packaging with a maximum capacity not exceeding 
1.2 liters. Sufficient outage must be provided such that the inner 
packaging will not become liquid full at 55  deg.C (130  deg.F). The net 
quantity (measured at 20  deg.C (68  deg.F)) of liquid in any inner 
packaging may not exceed one liter.
    (ii) The inner packaging must be placed in a hermetically-sealed 
barrier bag which is impervious to the lading, and then wrapped in a 
non-reactive absorbent material in sufficient quantity to completely 
absorb the contents of the inner packaging, and placed in a snugly 
fitting, metal can.
    (iii) The metal can must be securely closed. For liquids that are in 
Division 4.2 or 4.3, the metal can must be hermetically sealed. For 
Division 4.2 materials in Packing Group I, the metal can must be tested 
in accordance with part 178 of this subchapter at the Packing Group I 
performance level.
    (iv) The metal can must be placed in a fiberboard box that is placed 
in a hermetically-sealed barrier bag which is impervious to the lading.
    (v) The intermediate packaging must be placed inside a securely 
closed, outer packaging conforming to Sec. 173.201.
    (vi) Not more than four intermediate packagings are permitted in an 
outer packaging.
    (2) For solids:
    (i) The hazardous material must be placed in a tightly closed glass, 
plastic or metal inner packaging. The net quantity of material in any 
inner packaging may not exceed 2.85 kg (6.25 pounds).
    (ii) The inner packaging must be placed in a hermetically-sealed 
barrier bag which is impervious to the lading.
    (iii) The barrier bag and its contents must be placed in a 
fiberboard box that is placed in a hermetically-sealed barrier bag which 
is impervious to the lading.
    (iv) The intermediate packaging must be placed inside an outer 
packaging conforming to Sec. 173.211.
    (v) Not more than four intermediate packagings are permitted in an 
outer packaging.
    (d) The outside of the package must be marked, in association with 
the proper shipping name, with the statement: ``This package conforms to 
49 CFR 173.13.''
[Amdt. 173-253, 61 FR 27173, May 30, 1996]



    Subpart B--Preparation of Hazardous Materials for Transportation



Sec. 173.21  Forbidden materials and packages.

    Unless otherwise provided in this subchapter, the offering for 
transportation or transportation of the following is forbidden:
    (a) Materials that are designated ``Forbidden'' in Column 3 of the 
Sec. 172.101 Table.

[[Page 370]]

    (b) Forbidden explosives as defined in Sec. 173.54 of this part.
    (c) Electrical devices which are likely to create sparks or generate 
a dangerous quantity of heat, unless packaged in a manner which 
precludes such an occurrence.
    (d) For carriage by aircraft, any package which has a magnetic field 
of more than 0.00525 gauss measured at 4.5 m (15 feet) from any surface 
of the package.
    (e) A material in the same packaging, freight container, or overpack 
with another material, the mixing of which is likely to cause a 
dangerous evolution of heat, or flammable or poisonous gases or vapors, 
or to produce corrosive materials.
    (f) A package containing a material which is likely to decompose 
with a self-accelerated decomposition temperature (SADT) of 50 deg. C 
(122 deg. F) or less, or polymerize at a temperature of 54 deg. C 
(130 deg. F) or less with an evolution of a dangerous quantity of heat 
or gas when decomposing or polymerizing, unless the material is 
stabilized or inhibited in a manner to preclude such evolution. The SADT 
may be determined by any of the test methods described in Part II of the 
UN Manual of Tests and Criteria.
    (1) A package meeting the criteria of paragraph (f) of this section 
may be required to be shipped under controlled temperature conditions. 
The control temperature and emergency temperature for a package shall be 
as specified in the table in this paragraph based upon the SADT of the 
material. The control temperature is the temperature above which a 
package of the material may not be offered for transportation or 
transported. The emergency temperature is the temperature at which, due 
to imminent danger, emergency measures must be initiated.

    Section 173.21 Table: Method of Determining Control and Emergency   
                              Temperature.                              
------------------------------------------------------------------------
                                        Control            Emergency    
             SADT 1                  temperatures         temperature   
------------------------------------------------------------------------
SADT  20  deg.C (68    20  deg.C (36       10  deg.C (18     
 deg.F).                           deg.F) below SADT.  deg.F) below     
                                                       SADT.            
---------------------------------                                       
20  deg.C (68  deg.F) < SADT  35  deg.C (95  deg.F).    deg.F) below SADT.  deg.F) below     
                                                       SADT.            
---------------------------------                                       
35  deg.C (95  deg.F) < SADT  50  deg.C (122  deg.F).   deg.F) below SADT.  deg.F) below     
                                                       SADT.            
---------------------------------                                       
50  deg.C (122  deg.F) < SADT...  (\2\)               (\2\)             
------------------------------------------------------------------------
1 Self-accelerating decomposition temperature.                          
2 Temperature control not required.                                     

    (2) For self-reactive materials listed in Sec. 173.224(b) Table 
control and emergency temperatures, where required are shown in Columns 
5 and 6, respectively. For organic peroxides listed in The Organic 
Peroxides Table in Sec. 173.225 control and emergency temperatures, 
where required, are shown in Columns 7a and 7b, respectively.
    (3) Refrigeration may be used as a means of stabilization only when 
approved by the Associate Administrator for Hazardous Materials Safety. 
For status of approvals previously issued by the Bureau of Explosives, 
see Sec. 171.19 of this subchapter. Methods of stabilization approved by 
the Associate Administrator for Hazardous Materials Safety are as 
follows:
    (i) For highway transportation:
    (A) A material meeting the criteria of this paragraph (f) may be 
transported only in a transport vehicle, freight container, or motor 
vehicle equipped with a mechanical refrigeration unit, or loaded with a 
consumable refrigerant, capable of maintaining the inside temperature of 
the hazardous material at or below the control temperature required for 
the material during transportation.
    (B) Each package containing a material meeting the criteria of this 
paragraph (f) must be loaded and maintained at or below the control 
temperature required for the material. The temperature of the material 
must be determined by appropriate means and entered on a written record 
at the time the packaging is loaded.
    (C) The vehicle operator shall monitor the inside temperature of the 
transport vehicle, freight container, or

[[Page 371]]

motor vehicle and enter that temperature on a written record at the time 
the package is loaded and thereafter at intervals not exceeding two 
hours. Alternatively, a transport vehicle, freight container, or motor 
vehicle may be equipped with a visible or audible warning device that 
activates when the inside temperature of the transport vehicle, freight 
container, or motor vehicle exceeds the control temperature required for 
the material. The warning device must be readily visible or audible, as 
appropriate, from the vehicle operator's seat in the vehicle.
    (D) The carrier shall advise the vehicle operator of the emergency 
temperature for the material, and provide the vehicle operator with 
written procedures that must be followed to assure maintenance of the 
control temperature inside the transport vehicle, freight container, or 
motor vehicle. The written procedures must include instructions for the 
vehicle operator on actions to take if the inside temperature exceeds 
the control temperature and approaches or reaches the emergency 
temperature for the material. In addition, the written temperature-
control procedures must identify enroute points where the consumable 
refrigerant may be procured, or where repairs to, or replacement of, the 
mechanical refrigeration unit may be accomplished.
    (E) The vehicle operator shall maintain the written temperature-
control procedures, and the written record of temperature measurements 
specified in paragraph (f)(3)(i)(C) of this section, if applicable, in 
the same manner as specified in Sec. 177.817 of this subchapter for 
shipping papers.
    (F) If the control temperature is maintained by use of a consumable 
refrigerant (e.g., dry ice or liquid nitrogen), the quantity of 
consumable refrigerant must be sufficient to maintain the control 
temperature for twice the average transit time under normal conditions 
of transportation.
    (G) A material that has a control temperature of 40  deg.C (104 
deg.F) or higher may be transported by common carrier. A material that 
has a control temperature below 40  deg.C (104  deg.F) must be 
transported by a private or contract carrier.
    (ii) For transportation by vessel, shipments are authorized in 
accordance with the control-temperature requirements of Section 21 of 
the General Introduction of the International Maritime Dangerous Goods 
Code (IMDG Code).
    (g) Packages which give off a flammable gas or vapor, released from 
a material not otherwise subject to this subchapter, likely to create a 
flammable mixture with air in a transport vehicle.
    (h) Packages containing materials (other than those classed as 
explosive) which will detonate in a fire.
    (1) For purposes of this paragraph, ``detonate'' means an explosion 
in which the shock wave travels through the material at a speed greater 
than the speed of sound.
    (2) When tests are required to evaluate the performance of a package 
under the provisions of this paragraph, the testing must be done or 
approved by one of the agencies specified in Sec. 173.56.
    (i) A package containing a cigarette lighter, or other similar 
device, equipped with an ignition element and containing fuel; except 
that a cigarette lighter or similar device subject to this paragraph may 
be shipped if the design of the device and its inner packaging has been 
examined by the Bureau of Explosives and specifically approved by the 
Associate Administrator for Hazardous Materials Safety. The examination 
of cigarette lighters and similar devices containing gaseous fuel will 
include scrutiny for compliance with Sec. 173.308 of this part. For the 
status of approvals previously issued by the Bureau of Explosives, see 
Sec. 171.19 of this subchapter.
    (j) An organic peroxide of the ``ketone peroxide'' category which 
contains more than 9 percent available oxygen as calculated using the 
equation in Sec. 173.128(a)(4)(ii). The category, ketone peroxide, 
includes, but is not limited to:

Acetyl acetone peroxide
Cyclohexanone peroxide(s)
Diacetone alcohol peroxides
Methylcyclohexanone peroxide(s)
Methyl ethyl ketone peroxide(s)
Methyl isobutyl ketone peroxide(s)
    (k) Notwithstanding any other provision of this subchapter, 
including

[[Page 372]]

Sec. Sec. 171.11 and 175.10(a)(2) of this subchapter, an oxygen 
generator (chemical) as cargo on a passenger-carrying aircraft. This 
prohibition does not apply to an oxygen generator for medical or 
personal use of a passenger that meets the requirements of 
Sec. 175.10(a)(7) or Sec. 175.10(a)(24) of this subchapter.
[Amdt. 173-224, 55 FR 52609, Dec. 21, 1990, as amended at 56 FR 66265, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-241, 
59 FR 67490, Dec. 29, 1994; Amdt. 173-254, 61 FR 26419, May 24, 1996; 
Amdt. 173-253, 61 FR 27174, May 30, 1996; Amdt. 173-254, 61 FR 68954, 
Dec. 30, 1996; Amdt. 173-261, 62 FR 24719, May 6, 1997]



Sec. 173.22  Shipper's responsibility.

    (a) Except as otherwise provided in this part, a person may offer a 
hazardous material for transportation in a packaging or container 
required by this part only in accordance with the following:
    (1) The person shall class and describe the hazardous material in 
accordance with parts 172 and 173 of this subchapter, and
    (2) The person shall determine that the packaging or container is an 
authorized packaging, including part 173 requirements, and that it has 
been manufactured, assembled, and marked in accordance with:
    (i) Section 173.7(a) and parts 173, 178, or 179 of this subchapter;
    (ii) A specification of the Department in effect at the date of 
manufacture of the packaging or container;
    (iii) National or international regulations based on the UN 
Recommendations on the Transport of Dangerous Goods, as authorized in 
Sec. 173.24(d)(2);
    (iv) An approval issued under this subchapter; or
    (v) An exemption issued under subchapter A of this chapter.
    (3) In making the determination under paragraph (a)(2) of this 
section, the person may accept:
    (i) Except for the marking on the bottom of a metal or plastic drum 
with a capacity over 100 liters which has been reconditioned, 
remanufactured or otherwise converted, the manufacturer's certification, 
specification, approval, or exemption marking (see Secs. 178.2 and 179.1 
of this subchapter); or
    (ii) With respect to cargo tanks provided by a carrier, the 
manufacturer's identification plate or a written certification of 
specification or exemption provided by the carrier.
    (4) For a DOT specification or UN standard packaging subject to the 
requirements of part 178 of this subchapter, a person shall perform all 
functions necessary to bring that package into compliance with part 178 
of this subchapter, as identified by the packaging manufacturer or 
subsequent distributor, in accordance with Sec. 178.2 of this 
subchapter.
    (b) [Reserved]
    (c) Prior to each shipment of fissile radioactive materials, and 
Type B or highway route controlled quantity packages of radioactive 
materials (see Sec. 173.403), the shipper shall notify the consignee of 
the dates of shipment and expected arrival. The shipper shall also 
notify each consignee of any special loading/unloading instructions 
prior to his first shipment. For any shipment of irradiated reactor 
fuel, the shipper shall provide physical protection in compliance with a 
plan established under:
    (1) Requirements prescribed by the U.S. Nuclear Regulatory 
Commission, or
    (2) Equivalent requirements approved by the Associate Administrator 
for Hazardous Materials Safety, RSPA.
[Amdt. 173-100, 42 FR 2689, Jan. 13, 1977]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.22, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.22a  Use of packagings authorized under exemptions.

    (a) Except as provided in paragraph (b) of this section, no person 
may offer a hazardous material for transportation in a packaging the use 
of which is dependent upon an exemption issued under subpart B of part 
107 of this title, unless that person is the holder of or a party to the 
exemption.
    (b) If an exemption authorizes the use of a packaging for the 
shipment or transportation of a hazardous material by any person or 
class of persons other than or in addition to the holder of the 
exemption, that person or a member of that class of persons may use the 
packaging for the purposes authorized in the exemption subject to the 
terms

[[Page 373]]

specified therein. However, no person may use a packaging under the 
authority of this paragraph unless he maintains a copy of the exemption 
at each facility where the packaging is being used in connection with 
the shipment or transportation of the hazardous material concerned. 
Copies of exemptions may be obtained from the Associate Administrator 
for Hazardous Materials Safety, U.S. Department of Transportation, 
Washington, DC 20590-0001, Attention: Docket Section.
    (c) When an exemption issued to a person who offers a hazardous 
material contains requirements that apply to a carrier of the hazardous 
material, the offeror shall furnish a copy of the exemption to the 
carrier before or at the time a shipment is tendered.
[Amdt. 173-93, 41 FR 3478, Jan. 23, 1976, as amended by Amdt. 173-121, 
43 FR 48643, Oct. 19, 1978; Amdt. 173-223, 55 FR 39981, Oct. 1, 1990; 
Amdt. 173-224, 56 FR 66279, Dec. 20, 1991; Amdt. 173-233, 58 FR 33305, 
June 16, 1993; Amdt. 173.249, 61 FR 21102, May 9, 1996; Amdt.173-249, 61 
FR 51242, Oct. 1, 1996]



Sec. 173.23  Previously authorized packaging.

    (a) When the regulations specify a packaging with a specification 
marking prefix of ``DOT,'' a packaging marked prior to January 1, 1970, 
with the prefix of ``ICC'' may be used in its place if the packaging 
otherwise conforms to applicable specification requirements.
    (b) [Reserved]
    (c) After July 2, 1982, a seamless aluminum cylinder manufactured in 
conformance with and for use under DOT special permit (SP) or exemption 
(E) 6498, 7042, 8107, 8364 or 8422 may be continued in use if marked 
before or at the time of the next retest with either the specification 
identification ``3AL'' immediately above the special permit or exemption 
number, or the DOT mark (e.g., DOT 3AL 1800) in proximity to the special 
permit or exemption marking.
    (d) Cylinders (spheres) manufactured and marked under DOT special 
permit (SP) or exemption (E) 6616 prior to January 1, 1983, may be 
continued in use if marked before or at the time of the next retest with 
the specification identification ``4BA'' near the special permit or 
exemption marking.
    (e) After October 1, 1984, cylinders manufactured for use under 
special permit (SP) or exemption (E) 6668 or 8404 may be continued in 
use, and must be marked ``DOT-4LXXXYY'' (XXX to be replaced by the 
service pressure, YY to be replaced by the letters ``AL'', if 
applicable) in compliance with Specification 4L (Sec. 178.57 of this 
subchapter) on or before January 1, 1986. The ``DOT-4LXXXYY'' must 
appear in proximity to other required special permit or exemption 
markings.
    (f) An MC 331 cargo tank motor vehicle must conform to structural 
integrity requirements in Sec. 178.337-3 or to corresponding 
requirements in effect at the time of manufacture.
    (g) A non-bulk packaging manufactured, tested, marked, and certified 
on or before September 30, 1996, in accordance with the applicable 
provisions of subparts L and M of part 178 of this subchapter in effect 
on September 30, 1995, may be used as authorized by this subchapter if 
the packaging conforms to all requirements applicable at the time of 
manufacture. In addition, such a packaging may be reused as authorized 
by Sec. 173.28 without a nominal thickness marking, if it conforms to 
the minimum thickness criteria prescribed in Sec. 173.28(b)(4).
[Amdt. 173-3, 33 FR 14921, Oct. 4, 1968]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.23, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.24  General requirements for packagings and packages.

    (a) Applicability. Except as otherwise provided in this subchapter, 
the provisions of this section apply to--
    (1) Bulk and non-bulk packagings;
    (2) New packagings and packagings which are reused; and
    (3) Specification and non-specification packagings.
    (b) Each package used for the shipment of hazardous materials under 
this subchapter shall be designed, constructed, maintained, filled, its 
contents so limited, and closed, so that under conditions normally 
incident to transportation--

[[Page 374]]

    (1) Except as otherwise provided in this subchapter, there will be 
no identifiable (without the use of instruments) release of hazardous 
materials to the environment;
    (2) The effectiveness of the package will not be substantially 
reduced; for example, impact resistance, strength, packaging 
compatibility, etc. must be maintained for the minimum and maximum 
temperatures encountered during transportation;
    (3) There will be no mixture of gases or vapors in the package which 
could, through any credible spontaneous increase of heat or pressure, 
significantly reduce the effectiveness of the packaging.
    (c) Authorized packagings. A packaging is authorized for a hazardous 
material only if--
    (1) The packaging is prescribed or permitted for the hazardous 
material in a packaging section specified for that material in Column 8 
of the Sec. 172.101 Table and conforms to applicable requirements in the 
special provisions of Column 7 of the Sec. 172.101 Table and, for 
specification packagings (but not including UN standard packagings 
manufactured outside the United States), the specification requirements 
in parts 178 and 179 of this subchapter; or
    (2) The packaging is permitted under, and conforms to, provisions 
contained in Secs. 171.11, 171.12, 171.12a, 173.3, 173.4, 173.5, 173.7, 
173.27, or 176.11 of this subchapter.
    (d) Specification packagings and UN standard packagings manufactured 
outside the U.S.--(1) Specification packagings. A specification 
packaging, including a UN standard packaging manufactured in the United 
States, must conform in all details to the applicable specification or 
standard in part 178 or part 179 of this subchapter.
    (2) UN standard packagings manufactured outside the United States. A 
UN standard packaging manufactured outside the United States, in 
accordance with national or international regulations based on the UN 
Recommendations on the Transport of Dangerous Goods, may be imported and 
used and is considered to be an authorized packaging under the 
provisions of paragraph (c)(1) of this section, subject to the following 
conditions and limitations:
    (i) The packaging fully conforms to applicable provisions in the UN 
Recommendations on the Transport of Dangerous Goods and the requirements 
of this subpart, including reuse provisions;
    (ii) The packaging is capable of passing the prescribed tests in 
part 178 of this subchapter applicable to that standard; and
    (iii) The competent authority of the country of manufacture provides 
reciprocal treatment for UN standard packagings manufactured in the U.S.
    (e) Compatibility. (1) Even though certain packagings are specified 
in this part, it is, nevertheless, the responsibility of the person 
offering a hazardous material for transportation to ensure that such 
packagings are compatible with their lading. This particularly applies 
to corrosivity, permeability, softening, premature aging and 
embrittlement.
    (2) Packaging materials and contents must be such that there will be 
no significant chemical or galvanic reaction between the materials and 
contents of the package.
    (3) Plastic packagings and receptacles. (i) Plastic used in 
packagings and receptacles must be of a type compatible with the lading 
and may not be permeable to an extent that a hazardous condition is 
likely to occur during transportation, handling or refilling.
    (ii) Each plastic packaging or receptacle which is used for liquid 
hazardous materials must be capable of withstanding without failure the 
procedure specified in appendix B of this part (``Procedure for Testing 
Chemical Compatibility and Rate of Permeation in Plastic Packagings and 
Receptacles''). The procedure specified in appendix B of this part must 
be performed on each plastic packaging or receptacle used for Packing 
Group I materials. The maximum rate of permeation of hazardous lading 
through or into the plastic packaging or receptacles may not exceed 0.5 
percent for materials meeting the definition of a Division 6.1 material 
according to Sec. 173.132 and 2.0 percent for other hazardous materials, 
when subjected to a temperature no lower than--

[[Page 375]]

    (A) 18  deg.C (64  deg.F) for 180 days in accordance with Test 
Method 1 in appendix B of this part;
    (B) 50  deg.C (122  deg.F) for 28 days in accordance with Test 
Method 2 in appendix B of this part; or
    (C) 60  deg.C (140  deg.F) for 14 days in accordance with Test 
Method 3 in appendix B of this part.
    (iii) Alternative procedures or rates of permeation are permitted if 
they yield a level of safety equivalent to or greater than that provided 
by paragraph (e)(3)(ii) of this section and are specifically approved by 
the Associate Administrator for Hazardous Materials Safety.
    (4) Mixed contents. Hazardous materials may not be packed or mixed 
together in the same outer packaging with other hazardous or 
nonhazardous materials if such materials are capable of reacting 
dangerously with each other and causing--
    (i) Combustion or dangerous evolution of heat;
    (ii) Evolution of flammable, poisonous, or asphyxiant gases; or
    (iii) Formation of unstable or corrosive materials.
    (5) Packagings used for solids, which may become liquid at 
temperatures likely to be encountered during transportation, must be 
capable of containing the hazardous material in the liquid state.
    (f) Closures. (1) Closures on packagings shall be so designed and 
closed that under conditions (including the effects of temperature and 
vibration) normally incident to transportation--
    (i) Except as provided in paragraph (g) of this section, there is no 
identifiable release of hazardous materials to the environment from the 
opening to which the closure is applied; and
    (ii) The closure is secure and leakproof.
    (2) Except as otherwise provided in this subchapter, a closure 
(including gaskets or other closure components, if any) used on a 
specification packaging must conform to all applicable requirements of 
the specification.
    (g) Venting. Venting of packagings, to reduce internal pressure 
which may develop by the evolution of gas from the contents, is 
permitted only when--
    (1) Transportation by aircraft is not involved;
    (2) Except as otherwise provided in this subchapter, the evolved 
gases are not poisonous, likely to create a flammable mixture with air 
or be an asphyxiant under normal conditions of transportation;
    (3) The packaging is designed so as to preclude an unintentional 
release of hazardous materials from the receptacle; and
    (4) For shipments in bulk packagings, venting is authorized for the 
specific hazardous material by a special provision in the Sec. 172.101 
Table or by the applicable bulk packaging specification in part 178 of 
this subchapter.
    (h) Outage and filling limits--(1) General. When filling packagings 
and receptacles for liquids, sufficient ullage (outage) must be left to 
ensure that neither leakage nor permanent distortion of the packaging or 
receptacle will occur as a result of an expansion of the liquid caused 
by temperatures likely to be encountered during transportation. 
Requirements for outage and filling limits for non-bulk and bulk 
packagings are specified in Secs. 173.24a(d) and 173.24b(a), 
respectively.
    (2) Compressed gases and cryogenic liquids. Filling limits for 
compressed gases and cryogenic liquids are specified in Secs. 173.301 
through 173.306 for cylinders and Secs. 173.314 through 173.319 for bulk 
packagings.
    (i) Air transportation. Packages offered or intended for 
transportation by aircraft must conform to the general requirements for 
transportation by aircraft in Sec. 173.27, except as provided in 
Sec. 171.11 of this subchapter.
[Amdt. 173-224, 55 FR 52610, Dec. 21, 1990, as amended by Amdt. 173-227, 
56 FR 49989, Oct. 2, 1991; 56 FR 66265, Dec. 20, 1991; Amdt. 173-238, 59 
FR 38064, July 26, 1994; Amdt. 173-241, 59 FR 67491, Dec. 29, 1994; 
Amdt. 173-242, 60 FR 26805, May 18, 1995]



Sec. 173.24a  Additional general requirements for non-bulk packagings and packages.

    (a) Packaging design. Except as provided in Sec. 172.312 of this 
subchapter:
    (1) Inner packaging closures. A combination packaging containing 
liquid hazardous materials must be packed so

[[Page 376]]

that closures on inner packagings are upright.
    (2) Friction. The nature and thickness of the outer packaging must 
be such that friction during transportation is not likely to generate an 
amount of heat sufficient to alter dangerously the chemical stability of 
the contents.
    (3) Securing and cushioning. Inner packagings of combination 
packagings must be so packed, secured and cushioned to prevent their 
breakage or leakage and to control their movement within the outer 
packaging under conditions normally incident to transportation. 
Cushioning material must not be capable of reacting dangerously with the 
contents of the inner packagings or having its protective properties 
significantly weakened in the event of leakage.
    (4) Metallic devices. Nails, staples and other metallic devices 
shall not protrude into the interior of the outer packaging in such a 
manner as to be likely to damage inner packagings or receptacles.
    (5) Vibration. Each non-bulk package must be capable of 
withstanding, without rupture or leakage, the vibration test procedure 
specified in Sec. 178.608 of this subchapter.
    (b) Non-bulk packaging filling limits. (1) A single or composite 
non-bulk packaging may be filled with a liquid hazardous material only 
when the specific gravity of the material does not exceed that marked on 
the packaging, or a specific gravity of 1.2 if not marked, except as 
follows:
    (i) A Packing Group I packaging may be used for a Packing Group II 
material with a specific gravity not exceeding the greater of 1.8, or 
1.5 times the specific gravity marked on the packaging, provided all the 
performance criteria can still be met with the higher specific gravity 
material;
    (ii) A Packing Group I packaging may be used for a Packing Group III 
material with a specific gravity not exceeding the greater of 2.7, or 
2.25 times the specific gravity marked on the packaging, provided all 
the performance criteria can still be met with the higher specific 
gravity material; and
    (iii) A Packing Group II packaging may be used for a Packing Group 
III material with a specific gravity not exceeding the greater of 1.8, 
or 1.5 times the specific gravity marked on the packaging, provided all 
the performance criteria can still be met with the higher specific 
gravity material.
    (2) Except as otherwise provided in this section, a non-bulk 
packaging may not be filled with a hazardous material to a gross mass 
greater than the maximum gross mass marked on the packaging.
    (3) A single or composite non-bulk packaging which is tested and 
marked for liquid hazardous materials may be filled with a solid 
hazardous material to a gross mass, in kilograms, not exceeding the 
rated capacity of the packaging in liters, multiplied by the specific 
gravity marked on the packaging, or 1.2 if not marked. In addition:
    (i) A single or composite non-bulk packaging which is tested and 
marked for Packing Group I liquid hazardous materials may be filled with 
a solid Packing Group II hazardous material to a gross mass, in 
kilograms, not exceeding the rated capacity of the packaging in liters, 
multiplied by 1.5, multiplied by the specific gravity marked on the 
packaging, or 1.2 if not marked.
    (ii) A single or composite non-bulk packaging which is tested and 
marked for Packing Group I liquid hazardous materials may be filled with 
a solid Packing Group III hazardous material to a gross mass, in 
kilograms, not exceeding the rated capacity of the packaging in liters, 
multiplied by 2.25, multiplied by the specific gravity marked on the 
packaging, or 1.2 if not marked.
    (iii) A single or composite non-bulk packaging which is tested and 
marked for Packing Group II liquid hazardous materials may be filled 
with a solid Packing Group III hazardous material to a gross mass, in 
kilograms, not exceeding the rated capacity of the packaging in liters, 
multiplied by 1.5, multiplied by the specific gravity marked on the 
packaging, or 1.2 if not marked.
    (4) Packagings tested as prescribed in Sec. 178.605 of this 
subchapter and marked with the hydrostatic test pressure as prescribed 
in Sec. 178.503(a)(5) of this subchapter may be used for liquids only 
when the vapor pressure of the liquid conforms to one of the following:

[[Page 377]]

    (i) The vapor pressure must be such that the total pressure in the 
packaging (i.e., the vapor pressure of the liquid plus the partial 
pressure of air or other inert gases, less 100 kPa (15 psi)) at 55 
deg.C (131  deg.F), determined on the basis of a maximum degree of 
filling in accordance with paragraph (d) of this section and a filling 
temperature of 15  deg.C (59  deg.F)), will not exceed two-thirds of the 
marked test pressure;
    (ii) The vapor pressure at 50  deg.C (122  deg.F) must be less than 
four-sevenths of the sum of the marked test pressure plus 100 kPa (15 
psi); or
    (iii) The vapor pressure at 55  deg.C (131  deg.F) must be less than 
two-thirds of the sum of the marked test pressure plus 100 kPa (15 psi).
    (5) No hazardous material may remain on the outside of a package 
after filling.
    (c) Mixed contents. (1) An outer non-bulk packaging may contain more 
than one hazardous material only when--
    (i) The inner and outer packagings used for each hazardous material 
conform to the relevant packaging sections of this part applicable to 
that hazardous material;
    (ii) The package as prepared for shipment meets the performance 
tests prescribed in part 178 of this subchapter for the packing group 
indicating the highest order of hazard for the hazardous materials 
contained in the package;
    (iii) Corrosive materials (except ORM-D) in bottles are further 
packed in securely closed inner receptacles before packing in outer 
packagings; and
    (iv) For transportation by aircraft, the total net quantity does not 
exceed the lowest permitted maximum net quantity per package as shown in 
Column 9a or 9b, as appropriate, of the Sec. 172.101 Table. The 
permitted maximum net quantity must be calculated in kilograms if a 
package contains both a liquid and a solid.
    (2) A packaging containing inner packagings of Division 6.2 
materials may not contain other hazardous materials, except dry ice.
    (d) Liquids must not completely fill a receptacle at a temperature 
of 55  deg.C (131  deg.F) or less.
[Amdt. 173-224, 55 FR 52611, Dec. 21, 1990, as amended at 56 FR 66265, 
Dec. 20, 1991; 57 FR 45460, Oct. 1, 1992; 58 FR 51532, Oct. 1, 1993; 
Amdt. 173-255, 61 FR 50624, Sept. 26, 1996]



Sec. 173.24b  Additional general requirements for bulk packagings.

    (a) Outage and filling limits. (1) Except as otherwise provided in 
this subchapter, liquids and liquefied gases must be so loaded that the 
outage is at least five percent for materials poisonous by inhalation, 
or at least one percent for all other materials, of the total capacity 
of a cargo tank, portable tank, tank car (including dome capacity), 
multi-unit tank car tank, or any compartment thereof, at the following 
reference temperatures--
    (i) 46  deg.C (115  deg.F) for a noninsulated tank;
    (ii) 43  deg.C (110  deg.F) for a tank car having a thermal 
protection system, incorporating a metal jacket that provides an overall 
thermal conductance at 15.5  deg.C (60  deg.F) of no more than 10.22 
kilojoules per hour per square meter per degree Celsius (0.5 Btu per 
hour/per square foot/ per degree F) temperature differential; or
    (iii) 41  deg.C (105  deg.F) for an insulated tank.
    (2) Hazardous materials may not be loaded into the dome of a tank 
car. If the dome of the tank car does not provide sufficient outage, 
vacant space must be left in the shell to provide the required outage.
    (b) Equivalent steel. For the purposes of this section, the 
reference stainless steel is stainless steel with a guaranteed minimum 
tensile strength of 51.7 deka newtons per square millimeter (75,000 psi) 
and a guaranteed elongation of 40 percent or greater. Where the 
regulations permit steel other than stainless steel to be used in place 
of a specified stainless steel (for example, as in Sec. 172.102 of this 
subchapter, special provision B30), the minimum thickness for the steel 
must be obtained from one of the following formulas, as appropriate:

    Formula for metric units:


[[Page 378]]


e1=(12.74e0)/(Rm1 A1)\1/3\

Formula for non-metric units:

e1=(144.2e0)/(Rm1 A1)\1/3\

where:

e0=Required thickness of the reference stainless steel in 
          millimeters or inches respectively;
e1=Equivalent thickness of the steel used in millimeters or 
          inches respectively;
Rm1=Specified minimum tensile strength of the steel used in 
          deka-newtons per square millimeter or pounds per square inch 
          respectively; and
A1=Specified minimum percentage elongation of the steel used 
          multiplied by 100 (for example, 20 percent times 100 equals 
          20). Elongation values used must be determined from a 50 mm or 
          2 inch test specimen.

    (c) Air pressure in excess of ambient atmospheric pressure may not 
be used to load or unload any lading which may create an air-enriched 
mixture within the flammability range of the lading in the vapor space 
of the tank.
    (d) A bulk packaging may not be loaded with a hazardous material 
that:
    (1) Is at a temperature outside of the packaging's design 
temperature range; or
    (2) Except as otherwise provided in this subchapter, exceeds the 
maximum weight of lading marked on the specification plate.
[Amdt. 173-224, 55 FR 52612, Dec. 21, 1990, as amended at 56 FR 66266, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-243, 
60 FR 40038, Aug. 4, 1995; Amdt. 173-252, 61 FR 28676, June 5, 1996; 
Amdt. 173-255, 61 FR 50624, Sept. 26, 1996]



Sec. 173.25  Authorized packages and overpacks.

    (a) Authorized packages containing hazardous materials may be 
offered for transportation in an overpack as defined in Sec. 171.8 of 
this subchapter, if all of the following conditions are met:
    (1) The package meets the requirements of Secs. 173.21 and 173.24 of 
this subchapter.
    (2) The overpack is marked with the proper shipping name and 
identification number, and labeled as required by this subchapter for 
each hazardous material contained therein unless markings and labels 
representative of each hazardous material in the overpack are visible.
    (3) Each package subject to the orientation marking requirements of 
Sec. 172.312 of this subchapter is packed in the overpack with its 
filling holes up and the overpack is marked with package orientation 
marking arrows on two opposite vertical sides of the overpack with the 
arrows pointing in the correct direction of orientation.
    (4) The overpack is marked with a statement indicating that the 
inside (inner) packages comply with prescribed specifications when 
specification packagings are required, unless specification markings on 
the inside packages are visible.
    (5) Packages containing Class 8 (corrosive) materials in Packing 
Group I or Division 5.1 (oxidizing) materials in Packing Group I may not 
be overpacked with any other materials.
    (b) Shrink-wrapped or stretch-wrapped trays may be used as outer 
packagings for inner packagings prepared in accordance with the limited 
quantity provisions or consumer commodity provisions of this subchapter, 
provided that the complete package is capable of meeting performance 
standards at the Packing Group III performance level. Each package may 
not exceed 20 kg (44 lbs) gross weight.
    (c) Hazardous materials which are required to be labeled POISON may 
be transported in the same motor vehicle with material that is marked or 
known to be foodstuffs, feed or any edible material intended for 
consumption by humans or animals provided the hazardous material is 
marked, labeled, and packaged in accordance with this subchapter, 
conforms to the requirements of paragraph (a) of this section and is 
overpacked as specified in Sec. 177.841(e) of this subchapter or in an 
overpack which is a UN 1A2, 1B2, or 1N2 drum tested and marked for a 
Packing Group II or higher performance level.
[Amdt. 173-165, 48 FR 28099, June 20, 1983, as amended by Amdt. 173-224, 
55 FR 52612 Dec. 21, 1990; 56 FR 66266, Dec. 20, 1991; Amdt. 173-234, 58 
FR 51532, Oct. 1, 1993; Amdt. 173-214, 59 FR 67491, Dec. 29, 1994]



Sec. 173.26  Quantity limitations.

    When quantity limitations do not appear in the packaging 
requirements of this subchapter, the permitted gross weight or capacity 
authorized for a

[[Page 379]]

packaging is as shown in the packaging specification or standard in part 
178 or 179, as applicable, of this subchapter.
[Amdt. 173-224, 55 FR 52612, Dec. 21, 1990]



Sec. 173.27  General requirements for transportation by aircraft.

    (a) The requirements of this section are in addition to the 
requirements in Sec. 173.24 and apply to packages offered or intended 
for transportation aboard aircraft. Notwithstanding any Packing Group 
III performance level specified in Column 5 of the Sec. 172.101 Table, 
the required performance level for packages containing Class 4, 5, or 8 
materials, when offered or intended for transportation aboard aircraft, 
is at the Packing Group II performance level, unless otherwise excepted 
from performance requirements in subpart E of this part.
    (b) Packages authorized on board aircraft. (1) When Column 9a of the 
Sec. 172.101 Table indicates that a material is ``Forbidden'', that 
material may not be offered for transportation or transported aboard 
passenger-carrying aircraft.
    (2) When Column 9b of the Sec. 172.101 Table indicates that a 
material is ``Forbidden'', that material may not be offered for 
transportation or transported aboard aircraft.
    (3) The maximum quantity of hazardous material in a package that may 
be offered for transportation or transported aboard a passenger-carrying 
aircraft or cargo aircraft may not exceed that quantity prescribed for 
the material in Column 9a or 9b, respectively, of the Sec. 172.101 
Table.
    (4) A package containing a hazardous material which is authorized 
aboard cargo aircraft but not aboard passenger aircraft must be labeled 
with the CARGO AIRCRAFT ONLY label required by Sec. 172.402(b) of this 
subchapter and may not be offered for transportation or transported 
aboard passenger-carrying aircraft.
    (c) Pressure requirements. (1) Packagings must be designed and 
constructed to prevent leakage that may be caused by changes in altitude 
and temperature during transportation aboard aircraft.
    (2) Packagings for which retention of liquid is a basic function 
must be capable of withstanding without leakage the greater of--
    (i) An internal pressure which produces a gauge pressure of not less 
than 75 kPa (11 psi) for liquids in Packing Group III of Class 3 or 
Division 6.1. or 95 kPa (14 psi) for other liquids; or
    (ii) A pressure related to the vapor pressure of the liquid to be 
conveyed, determined by one of the following:
    (A) The total gauge pressure measured in the receptacle (i.e., the 
vapor pressure of the material and the partial pressure of air or other 
inert gases, less 100 kPa (15 psi)) at 55  deg.C (131  deg.F), 
multiplied by a safety factor of 1.5; determined on the basis of a 
filling temperature of 15  deg.C (59  deg.F) and a degree of filling 
such that the receptacle is not completely liquid full at a temperature 
of 55  deg.C (131  deg.F) or less;
    (B) 1.75 times the vapor pressure at 50  deg.C (122  deg.F) less 100 
kPa (15 psi); or
    (C) 1.5 times the vapor pressure at 55  deg.C (131  deg.) less 100 
kPa (15 psi).
    (3) Notwithstanding the provisions of paragraph (c)(2) of this 
section--
    (i) Hazardous materials may be contained in an inner packaging which 
does not itself meet the pressure requirement provided that the inner 
packaging is packed within a supplementary packaging which does meet the 
pressure requirement and other applicable packaging requirements of this 
subchapter.
    (ii) Packagings which are subject to the hydrostatic pressure test 
and marking requirements of Secs. 178.605 and 178.503(a)(5), 
respectively, of this subchapter must have a marked test pressure of not 
less than 250 kPa (36 psi) for liquids in Packing Group I, 80 kPa (12 
psi) for liquids in Packing Group III of Class 3 or Division 6.1, and 
100 kPa (15 psi) for other liquids.
    (d) Closures. Stoppers, corks or other such friction-type closures 
must be held securely, tightly and effectively in place by positive 
means. Each screw-type closure on any packaging must be secured to 
prevent closure from loosening due to vibration or substantial change in 
temperature.
    (e) Absorbent materials. Except as otherwise provided in this 
subchapter, liquids in Packing Group I or II of Class 3, 4, 5, 6, or 8, 
when in glass or earthenware inner packagings, must be

[[Page 380]]

packaged using material capable of absorbing and not likely to react 
dangerously with the liquid. Absorbent material is not required if the 
inner packagings are so protected that breakage of them and leakage of 
their contents from the outer packaging is not likely to occur under 
normal conditions of transportation and is not required for packagings 
containing liquids in Packing Group II for transport aboard cargo 
aircraft only. Where absorbent material is required and an outer 
packaging is not liquid-tight, a means of containing the liquid in the 
event of leakage must be used in the form of a leakproof liner, plastic 
bag or other equally efficient means of containment. Where absorbent 
material is required, the quantity and disposition of it in each outer 
packaging must be as follows:
    (1) For packagings containing liquids in Packing Group I offered for 
transportation or transported aboard passenger-carrying aircraft, each 
packaging must contain sufficient absorbent material to absorb the 
contents of all inner packagings containing such liquids;
    (2) For packagings containing liquids in Packing Group I offered for 
transportation or transported aboard cargo aircraft only and packagings 
containing liquids in Packing Group II offered for transportation or 
transported aboard passenger aircraft, each package must contain 
sufficient absorbent material to absorb the contents of any one of the 
inner packagings containing such liquids and, where they are of 
different sizes and quantities, sufficient absorbent material to absorb 
the contents of the inner packaging containing the greatest quantity of 
liquid.
    (f) Combination packagings. Unless otherwise specified in this part, 
or in Sec. 171.11 of this subchapter, when combination packagings are 
offered for transportation aboard aircraft, inner packagings must 
conform to the quantity limitations set forth in Table 1 of this 
paragraph for transport aboard passenger-carrying aircraft and Table 2 
of this paragraph for transport aboard cargo aircraft only, as follows:

       Table 1.--Maximum Net Capacity of Inner Packaging for Transportation on Passenger-Carrying Aircraft      
----------------------------------------------------------------------------------------------------------------
                                                 Maximum authorized net capacity of each inner packaging        
 Maximum net quantity per package from  ------------------------------------------------------------------------
  Column 9a of the Sec.  172.101 Table    Glass, earthenware or fiber inner                                     
                                                      packagings               Metal or plastic inner packagings
----------------------------------------------------------------------------------------------------------------
Liquids:                                                                                                        
    Not greater than 0.5L..............  0.5L...............................  0.5L.                             
    Greater than 0.5L. not greater than  0.5L...............................  lL.                               
     lL.                                                                                                        
    Greater than 1L, not greater than    1L.................................  5L.                               
     5L.                                                                                                        
    Greater than 5L, not greater than    2.5L...............................  10L.                              
     60L.                                                                                                       
    Greater than 60L, not greater than   5L.................................  25L.                              
     220L.                                                                                                      
    Greater than 220L..................  No limit...........................  No limit.                         
Solids:                                                                                                         
    Not greater than 5 kg..............  0.5 kg.............................  1 kg.                             
    Greater than 5 kg, not greater than  1 kg...............................  2.5 kg.                           
     25 kg.                                                                                                     
    Greater than 25 kg, not greater      5 kg...............................  10 kg.                            
     than 200 kg.                                                                                               
    Greater than 200 kg................  No limit...........................  No limit.                         
----------------------------------------------------------------------------------------------------------------

      

             Table 2.--Maximum Net Capacity of Inner Packaging for Transportation on Cargo Aircraft             
----------------------------------------------------------------------------------------------------------------
                                                 Maximum authorized net capacity of each inner packaging        
 Maximum net quantity per package from  ------------------------------------------------------------------------
  Column 9b of the Sec.  172.101 Table    Glass, earthenware or fiber inner                                     
                                                      packagings               Metal or plastic inner packagings
----------------------------------------------------------------------------------------------------------------
Liquids:                                                                                                        
    Not greater than 2.5L..............  1L.................................  1L.                               
    Greater than 2.5L, not greater than  2.5L...............................  2.5L.                             
     30L.                                                                                                       
    Greater than 30L, not greater than   5L.................................  10L.                              
     60L.                                                                                                       

[[Page 381]]

                                                                                                                
    Greater than 60L, not greater than   5L.................................  25L.                              
     220L.                                                                                                      
    Greater than 220L..................  No limit...........................  No limit.                         
Solids:                                                                                                         
    Not greater than 15 kg.............  1 kg...............................  2.5 kg.                           
    Greater than 15 kg, not greater      2.5 kg.............................  5 kg.                             
     than 50 kg.                                                                                                
    Greater than 50 kg, not greater      5 kg...............................  10 kg.                            
     than 200 kg.                                                                                               
    Greater than 200 kg................  No limit...........................  No limit.                         
----------------------------------------------------------------------------------------------------------------

    (g) Cylinders. For any cylinder containing hazardous materials and 
incorporating valves, sufficient protection must be provided to prevent 
operation of, and damage to, the valves during transportation, by one of 
the following methods:
    (1) By equipping each cylinder with securely attached valve caps or 
protective headrings; or
    (2) By boxing or crating the cylinder.
    (h) Tank cars and cargo tanks. Any tank car or cargo tank containing 
a hazardous material may not be transported aboard aircraft.
[Amdt. 173-224, 55 FR 52612, Dec. 21, 1990, as amended at 56 FR 66266, 
Dec. 20, 1991; Amdt. 173-138, 59 FR 49133, Sept. 26, 1994]



Sec. 173.28  Reuse, reconditioning and remanufacture of packagings.

    (a) General. Packagings and receptacles used more than once must be 
in such condition, including closure devices and cushioning materials, 
that they conform in all respects to the prescribed requirements of this 
subchapter. Before reuse, each packaging must be inspected and may not 
be reused unless free from incompatible residue, rupture, or other 
damage which reduces its structural integrity.
    (b) Reuse of non-bulk packaging. A non-bulk packaging used more than 
once must conform to the following provisions and limitations:
    (1) A non-bulk packaging which, upon inspection, shows evidence of a 
reduction in integrity may not be reused unless it is reconditioned in 
accordance with paragraph (c) of this section.
    (2) Before reuse, packagings subject to the leakproofness test with 
air prescribed in Sec. 178.604 of this subchapter shall be--
    (i) Retested without failure in accordance with Sec. 178.604 of this 
subchapter using an internal air pressure (gauge) of at least 48 kPa 
(7.0 psi) for Packing Group I and 20 kPa (3.0 psi) for Packing Group II 
and Packing Group III; and
    (ii) Marked with the letter ``L'', with the name and address or 
symbol of the person conducting the test, and the last two digits of the 
year the test was conducted. Symbols, if used, must be registered with 
the Associate Administrator for Hazardous Materials Safety.
    (3) Packagings made of paper, plastic film, or textile are not 
authorized for reuse;
    (4) Metal and plastic drums and jerricans used as single packagings 
or the outer packagings of composite packagings are authorized for reuse 
only when they are marked in a permanent manner (e.g., embossed) in 
millimeters with the nominal (for metal packagings) or minimum (for 
plastic packagings) thickness of the packaging material, as required by 
Sec. 178.503(a)(9) of this subchapter, and--
    (i) Except as provided in paragraph (b)(4)(ii) of this section, 
conform to the following minimum thickness criteria:

                                                                        
------------------------------------------------------------------------
                            Minimum thickness of packaging material     
 Maximum capacity not --------------------------------------------------
         over                                        Plastic drum or    
                        Metal drum or jerrican           jerrican       
------------------------------------------------------------------------
20 L.................  0.63 mm (0.025 inch)....  1.1 mm (0.043 inch).   
30 L.................  0.73 mm (0.029 inch)....  1.1 mm (0.043 inch).   
40 L.................  0.73 mm (0.029 inch)....  1.8 mm (0.071 inch).   
60 L.................  0.92 mm (0.036 inch)....  1.8 mm (0.071 inch).   
120 L................  0.92 mm (0.036 inch)....  2.2 mm (0.087 inch).   
220 L................  0.92 mm (0.036 inch) 1..  2.2 mm (0.087 inch).   
450 L................  1.77 mm (0.070 inch)....  5.0 mm (0.197 inch).   

[[Page 382]]

                                                                        
------------------------------------------------------------------------

    \1\ Metal drums or jerricans with a minimum thickness of 0.82 mm 
body and 1.09 mm heads which are manufactured and marked prior to 
January 1, 1997 may be reused. Metal drums or jerricans manufactured and 
marked on or after January 1, 1997, and intended for reuse, must be 
constructed with a minimum thickness of 0.82 mm body and 1.11 mm heads.
    (ii) For stainless steel drums and jerricans, conform to a minimum 
wall thickness as determined by the following equivalence formula:

                        Formula for Metric Units
[GRAPHIC] [TIFF OMITTED] TP26JN96.000

                     Formula for U.S. Standard Units
[GRAPHIC] [TIFF OMITTED] TP26JN96.001


where:
e1=required equivalent wall thickness of the metal to be used 
(in mm or, for U.S. Standard units, use inches).
e0=required minimum wall thickness for the reference steel 
(in mm or, for U.S. Standard units, use inches).
Rm1=guaranteed minimum tensile strength of the metal to be 
used (in N/mm2 or for U.S. Standard units, use pounds per 
square inch).
A1=guaranteed minimum elongation (as a percentage) of the 
metal to be used on fracture under tensile stress (see paragraph (c)(1) 
of this section).
    (5) Plastic inner receptacles of composite packagings must have a 
minimum thickness of 1.0 mm (0.039 inch).
    (6) A previously used non-bulk packaging may be reused for the 
shipment of hazardous waste, not subject to the reconditioning and reuse 
provisions of this section, in accordance with Sec. 173.12(c).
    (7) Notwithstanding the provisions of paragraph (b)(2) of this 
section, a packaging otherwise authorized for reuse may be reused 
without being leakproofness tested with air provided the packaging--
    (i) Is refilled with a material which is compatible with the 
previous lading:
    (ii) Is refilled and offered for transportation by the original 
filler;
    (iii) Is transported in a transport vehicle or freight container 
under the exclusive use of the refiller of the packaging; and
    (iv) Is constructed of--
    (A) Stainless steel, monel or nickel with a thickness not less than 
one and one-half times the minimum thickness prescribed in paragraph 
(b)(4) of this section;
    (B) Plastic, provided the packaging is not refilled for reuse on a 
date more than five years from the date of manufacture marked on the 
packaging in accordance with Sec. 178.503(a)(6) of this subchapter; or
    (C) another material or thickness when approved under the conditions 
established by the Associate Administrator for Hazardous Materials 
Safety for reuse without retesting.
    (c) Reconditioning of non-bulk packaging. (1) For the purpose of 
this subchapter, reconditioning of metal drums is:
    (i) Cleaning to base material of construction, with all former 
contents, internal and external corrosion, and any external coatings and 
labels removed;
    (ii) Restoring to original shape and contour, with chimes (if any) 
straightened and sealed, and all non-integral gaskets replaced: and
    (iii) Inspecting after cleaning but before painting, Packagings that 
have visible pitting, significant reduction in material thickness, metal 
fatigue, damaged threads or closures, or other significant defects, must 
be rejected.
    (2) For the purpose of this subchapter, reconditioning of a non-bulk 
packaging other than a metal drum or a UN 1H1 plastic drum is restoring 
the packaging by repair, or replacement of non-integral packaging 
components (such as removable gaskets, closure devices, cushioning 
material, etc.) to a condition such that it conforms in all respects 
with the prescribed requirements of this subchapter. For a UN 1H1 
plastic drum, replacing a removable gasket or closure device with a 
replacement of the same design and material

[[Page 383]]

which provides equivalent performance does not constitute 
reconditioning. Packagings which have significant defects which cannot 
be repaired may not be reused.
    (3) A person who reconditions a packaging manufactured and marked 
under the provisions of subpart L of part 178 of this subchapter, shall 
mark that packaging as required by Sec. 178.503(c) and (d) of this 
subchapter. The marking is the certification of the reconditioner that 
the packaging conforms to the standard for which it is marked and that 
all functions performed by the reconditioner which are prescribed by 
this subchapter have been performed in compliance with this subchapter.
    (4) The markings applied by the reconditioner may be different from 
those applied by the manufacturer at the time of original manufacture, 
but may not identify a greater performance capability than that for 
which the original design type had been tested (for example, the 
reconditioner may mark a drum which was originally marked as 1A1/Y1.8 as 
1A1/Y1.2 or 1A1/Z2.0).
    (d) Remanufacture of non-bulk packagings. For the purpose of this 
subchapter, remanufacture is the conversion of a non-specification, non-
bulk packaging to a DOT specification or U.N. standard, the conversion 
of a packaging meeting one specification or standard to another 
specification or standard (for example, conversion of 1A1 non-removable 
head drums to 1A2 removable head drums) or the replacement of integral 
structural packaging components (such as non-removable heads on drums). 
A person who remanufactures a non-bulk packaging to conform to a 
specification or standard in part 178 of this subchapter is subject to 
the requirements of part 178 of this subchapter as a manufacturer.
    (e) Non-reusable containers. A packaging marked as NRC according to 
the DOT specification or UN standard requirements of part 178 of this 
subchapter may be reused for the shipment of any material not required 
by this subchapter to be shipped in a DOT specification or UN standard 
packaging.
[Amdt. 173-224, 55 FR 52614, Dec. 21, 1990, as amended at 56 FR 66266, 
Dec. 20, 1991; 57 FR 45460, Oct. 1, 1992; Amdt. 173-241, 59 FR 67491, 
67492, Dec. 29, 1994; 60 FR 7627, Feb. 8, 1995; Amdt. 173-241, 60 FR 
26805, 26806, May 18, 1995 Amdt. 173-255, 61 FR 50624, 50265, Sept. 26, 
1996; 61 FR 51495, Oct. 2, 1996; Amdt. 173-254, 62 FR 14338, Mar. 26, 
1997]



Sec. 173.29  Empty packagings.

    (a) General. Except as otherwise provided in this section, an empty 
packaging containing only the residue of a hazardous material shall be 
offered for transportation and transported in the same manner as when it 
previously contained a greater quantity of that hazardous material.
    (b) Notwithstanding the requirements of paragraph (a) of this 
section, an empty packaging is not subject to any other requirements of 
this subchapter if it conforms to the following provisions:
    (1) Any hazardous material shipping name and identification number 
markings, and any hazard warning labels or placards are removed, 
obliterated, or securely covered in transportation. This provision does 
not apply to transportation in a transport vehicle or a freight 
container if the packaging is not visible during transportation and the 
packaging is loaded by the shipper and unloaded by the shipper or 
consignee;
    (2) The packaging--
    (i) Is unused;
    (ii) Is sufficiently cleaned of residue and purged of vapors to 
remove any potential hazard;
    (iii) Is refilled with a material which is not hazardous to such an 
extent that any residue remaining in the packaging no longer poses a 
hazard; or
    (iv) Contains only the residue of--
    (A) An ORM-D material; or
    (B) A non-flammable gas with no subsidiary hazard at an absolute 
pressure less than 276 kPa (40 psia); at 21  deg.C (70  deg.F); and
    (3) Any material contained in the packaging does not meet the 
definitions in Sec. 171.8 of this subchapter for a hazardous substance, 
a hazardous waste, or a marine pollutant.

[[Page 384]]

    (c) A non-bulk packaging containing only the residue of a hazardous 
material covered by Table 2 of Sec. 172.504 of this subchapter--
    (1) Does not have to be included in determining the applicability of 
the placarding requirements of subpart F of part 172 of this subchapter; 
and
    (2) Is not subject to the shipping paper requirements of this 
subchapter when collected and transported by a contract or private 
carrier for reconditioning, remanufacture or reuse.
    (d) Notwithstanding the stowage requirements in Column 10a of the 
Sec. 172.101 Table for transportation by vessel, an empty drum or 
cylinder may be stowed on deck or under deck.
    (e) Specific provisions for describing an empty packaging on a 
shipping paper appear in Sec. 172.203(e) of this subchapter.
    (f)  [Reserved]
    (g) A package which contains a residue of an elevated temperature 
material may remain marked in the same manner as when it contained a 
greater quantity of the material even though it no longer meets the 
definition in Sec. 171.8 of this subchapter for an elevated temperature 
material.
[Amdt. 173-224, 55 FR 52614, Dec. 21, 1990, as amended by Amdt. 173-227, 
56 FR 49989, Oct. 2, 1991; Amdt. 173-231, 57 FR 52939, Nov. 5, 1992; 
Amdt. 173-251, 61 FR 28676, June 5, 1996]

    Effective Date Note: By Amdt. 173-260, 62 FR 1236, Jan. 8, 1997, 
Sec. 173.29(b)(1) was revised, effective Oct. 1, 1997. At 62 FR 39398, 
July 22, 1997, the effective date was delayed until Oct. 1, 1998. For 
the convenience of the user the revised text is set forth as follows:

Sec. 173.29  Empty packagings.

                                * * * * *

    (b) * * *
    (1) Any hazardous material shipping name and identification number 
markings, any hazard warning labels or placards, and any other markings 
indicating that the material is hazardous (e.g., RQ, INHALATION HAZARD) 
are removed, obliterated, or securely covered in transportation. This 
provision does not apply to transportation in a transport vehicle or a 
freight container if the packaging is not visible in transportation and 
the packaging is loaded by the shipper and unloaded by the shipper or 
consignee;

                                * * * * *



Sec. 173.30  Loading and unloading of transport vehicles.

    A person who loads or unloads hazardous materials into or from a 
transport vehicle or vessel shall comply with the applicable loading and 
unloading requirements of parts 174, 175, 176, and 177 of this 
subchapter.
[Amdt. 173-94, 41 FR 16064, Apr. 15, 1976]



Sec. 173.31  Use of tank cars.

    (a) General. (1) No person may offer a hazardous material for 
transportation in a tank car unless the tank car meets the applicable 
specification and packaging requirements of this subchapter or, when 
this subchapter authorizes the use of an non-DOT specification tank car, 
the applicable specification to which the tank was constructed.
    (2) Tank cars and appurtenances may be used for the transportation 
of any commodity for which they are authorized in this part and 
specified on the certificate of construction (AAR Form 4-2 or by 
addendum on Form R-1). See Sec. 179.5 of this subchapter. Transfer of a 
tank car from one specified service on its certificate of construction 
to another may be made only by the owner or with the owner's 
authorization. A tank car proposed for a commodity service other than 
specified on its certificate of construction must be approved for such 
service by the AAR's Tank Car Committee.
    (3) No person may fill a tank car overdue for periodic inspection 
with a hazardous material and then offer it for transportation. Any tank 
car marked as meeting a DOT specification and any non-specification tank 
car transporting a hazardous material must have a periodic inspection 
and test conforming to Subpart F of Part 180 of this subchapter.
    (4) No railroad tank car, regardless of its construction date, may 
be used for the transportation in commerce of any hazardous material 
unless the air brake equipment support attachments of such tank car 
conform to the standards for attachments set forth in Secs. 179.100-16 
and 179.200-19 of this subchapter.
    (5) No railroad tank car, regardless of its construction date, may 
be used for the transportation in commerce of any

[[Page 385]]

hazardous material with a self-energized manway located below the liquid 
level of the lading.
    (6) Unless otherwise specifically provided in this part:
    (i) When the tank car delimiter is an ``A,'' offerors may also use 
tank cars with a delimiter ``S,'' ``J'' or ``T''.
    (ii) When the tank car delimiter is an ``S,'' offerors may also use 
tank cars with a delimiter ``J'' or ``T''.
    (iii) When a tank car delimiter is a ``T'' offerors may also use 
tank cars with a delimiter of ``J''.
    (iv) When a tank car delimiter is a ``J'', offerors may not use a 
tank car with any other delimiter.
    (b) Safety systems--(1) Coupler vertical restraint. Each tank car 
conforming to a DOT specification and any other tank car used for 
transportation of a hazardous material must be equipped with a coupler 
vertical restraint system that meets the requirements of Sec. 179.14 of 
this subchapter.
    (2) Pressure relief devices. (i) Pressure relief devices on tank 
cars must conform to Part 179 of this subchapter.
    (ii) Except for shipments of chloroprene, inhibited, in class DOT 
115 tank cars, single-unit tank cars used for materials meeting the 
definition for Division 6.1 liquid, Packing Group I or II, Class 2 
materials, or Class 3 or 4 liquids, must have self-closing pressure 
relief devices. However, a tank car built before January 1, 1991, and 
equipped with a non-closing pressure relief device may be used to 
transport a Division 6.1 or Class 4 liquid if the liquid is not 
poisonous by inhalation. Unless otherwise specifically provided in this 
subchapter, frangible discs may not have breather holes.
    (3) Tank-head puncture-resistance requirements. The following tank 
cars must have a tank-head puncture-resistance system that conforms to 
the requirements in Sec. 179.16 of this subchapter, or to the 
corresponding requirements in effect at the time of installation:
    (i) Tank cars transporting a Class 2 material.
    (ii) Tank cars constructed from aluminum or nickel plate that are 
used to transport hazardous material.
    (iii) Except as provided in paragraph (b)(3)(iv) of this section, 
those tank cars specified in paragraphs (b)(3)(i) and (ii) of this 
section not requiring a tank-head puncture resistance system prior to 
July 1, 1996, must have a tank-head puncture resistance system installed 
no later than July 1, 2006.
    (iv) Class DOT 105A tank cars built prior to September 1, 1981, 
having a tank capacity less than 70 kl (18,500 gallons), and used to 
transport a Division 2.1 (flammable gas) material, must have a tank-head 
puncture-resistant system installed no later than July 1, 2001.
    (4) Thermal protection requirements. The following tank cars must 
have thermal protection that conforms to the requirements of Sec. 179.18 
of this subchapter:
    (i) Tank cars transporting a Class 2 material, except for a class 
106, 107A, 110, and 113 tank car. A tank car equipped with a thermal 
protection system conforming to Sec. 179.18 of this subchapter, or that 
has an insulation system having an overall thermal conductance of no 
more than 0.613 kilojoules per hour, per square meter, per degree 
Celsius temperature differential (0.03 B.t.u. per square foot, per hour, 
per degree Fahrenheit temperature differential), conforms to this 
requirement.
    (ii) A tank car transporting a Class 2 material that was not 
required to have thermal protection prior to July 1, 1996, must be 
equipped with thermal protection no later than July 1, 2006.
    (5) Bottom-discontinuity protection requirements. No person may 
offer for transportation a hazardous material in a tank car with bottom 
discontinuity protection unless the tank car has bottom-discontinuity 
protection that conforms to the requirements of E9.00 and E10.00 of the 
AAR Specifications for Tank Cars. Tank cars not requiring bottom-
discontinuity protection under the terms of Appendix Y of the AAR 
Specifications for Tank Cars as of July 1, 1996, must conform to these 
requirements no later than July 1, 2006. Tank cars modified before July 
1, 1996, may conform to the bottom-discontinuity protection requirements 
of Appendix Y of the 1992 edition of the AAR Specifications for Tank 
Cars.

[[Page 386]]

    (6) Scheduling of modifications and progress reporting. The date of 
conformance for the continued use of tank cars subject to paragraphs 
(b)(3), (b)(4), (b)(5), (e)(2), and (f) of this section and 
Secs. 173.314(j) and 173.323(c)(1) is subject to the following 
conditions and limitations.
    (i) Each tank car owner shall modify, reassign, retire, or remove at 
least 50 percent of their in-service tank car fleet within the first 
half of the compliance period and the remainder of their in-service tank 
car fleet during the second half of the compliance period.
    (ii) By October 1 of each year, each owner of a tank car subject to 
this paragraph (b)(6) shall submit to the Hazardous Materials Division 
(RRS-12), Office of Safety Assurance and Compliance, Federal Railroad 
Administration, 400 7th Street, SW., Washington, DC 20590-0001, a 
progress report that shows the total number of in-service tank cars that 
need head protection, thermal protection, or bottom-discontinuity 
protection; the number of new or different tank cars acquired to replace 
those tank cars required to be upgraded to a higher service pressure; 
and the total number of tank cars modified, reassigned, acquired, 
retired, or removed from service the previous year.
    (c) Tank car test pressure. A tank car used for the transportation 
of a hazardous material must have a tank test pressure equal to or 
greater than the greatest of the following:
    (1) Except for shipments of carbon dioxide, anhydrous hydrogen 
chloride, vinyl fluoride, ethylene, or hydrogen, 133 percent of the sum 
of lading vapor pressure at the reference temperature of 46  deg.C (115 
deg.F) for non-insulated tank cars or 41  deg.C (105  deg.F) for 
insulated tank cars plus static head, plus gas padding pressure in the 
vacant space of a tank car;
    (2) 133 percent of the maximum loading or unloading pressure, 
whichever is greater;
    (3) 20.7 Bar (300 psi) for materials that are poisonous by 
inhalation (see Sec. 173.31(e)(2)(ii) for compliance dates);
    (4) The minimum pressure prescribed by the specification in Part 179 
of this subchapter; or
    (5) The minimum test pressure prescribed for the specific hazardous 
material in the applicable packaging section in Subpart F or G of this 
Part.
    (d) Examination before shipping. (1) No person may offer for 
transportation a tank car containing a hazardous material or a residue 
of a hazardous material unless that person determines that the tank car 
is in proper condition and safe for transportation. As a minimum, each 
person offering a tank car for transportation must perform an external 
visual inspection that includes:
    (i) Except where insulation or a thermal protection system precludes 
an inspection, the tank shell and heads for abrasion, corrosion, cracks, 
dents, distortions, defects in welds, or any other condition that makes 
the tank car unsafe for transportation;
    (ii) The piping, valves, fittings, and gaskets for corrosion, 
damage, or any other condition that makes the tank car unsafe for 
transportation;
    (iii) For missing or loose bolts, nuts, or elements that make the 
tank car unsafe for transportation;
    (iv) All closures on tank cars and determine that the closures and 
all fastenings securing them are properly tightened in place by the use 
of a bar, wrench, or other suitable tool;
    (v) Protective housings for proper securement;
    (vi) The pressure relief device, including a careful inspection of 
the frangible disc in non-closing pressure relief devices, for corrosion 
or damage that may alter the intended operation of the device;
    (vii) Each tell-tale indicator after filling and prior to 
transportation to ensure the integrity of the rupture disc;
    (viii) The external thermal protection system, tank-head puncture 
resistance system, coupler vertical restraint system, and bottom 
discontinuity protection for conditions that make the tank car unsafe 
for transportation.
    (ix) The required markings on the tank car for legibility; and
    (x) The periodic inspection date markings to ensure that the 
inspection and test intervals are within the prescribed intervals.

[[Page 387]]

    (2) Closures on tank cars are required, in accordance with this 
subchapter, to be designed and closed so that under conditions normally 
incident to transportation, including the effects of temperature and 
vibration, there will be no identifiable release of a hazardous material 
to the environment. ln any action brought to enforce this section, the 
lack of securement of any closure to a tool-tight condition, detected at 
any point, will establish a rebuttable presumption that a proper 
inspection was not performed by the offeror of the car. That presumption 
may be rebutted by any evidence indicating that the lack of securement 
resulted from a specific cause not within the control of the offeror.
    (e) Special requirements for materials poisonous by inhalation--(1) 
Interior heater coils. Tank cars used for materials poisonous by 
inhalation may not have interior heater coils.
    (2) Tank car specifications. A tank car used for a material 
poisonous by inhalation must have a tank test pressure of 20.7 Bar (300 
psi) or greater, head protection, and a metal jacket (e.g., DOT 
105S300W), except that--
    (i) A higher test pressure is required if otherwise specified in 
this subchapter; and
    (ii) Other than as provided in paragraph (b)(6) of this section, a 
tank car which does not conform to the requirements of this paragraph 
(e)(2), and was authorized for the material poisonous by inhalation 
under the regulations in effect on June 30, 1996, may continue in use 
until July 1, 2006.
    (f) Special requirements for hazardous substances. (1) A tank car 
used for a hazardous substance listed in paragraph (f)(2) of this 
section must have a tank test pressure of at least 13.8 Bar (200 psi), 
head protection and a metal jacket, except that--
    (i) No metal jacket is required if--
    (A) The tank test pressure is 23.4 Bar (340 psi) or higher; or
    (B) The tank shell and heads are manufactured from AAR steel 
specification TC-128, normalized;
    (ii) A higher test pressure is required if otherwise specified in 
this subchapter; and
    (iii) Other than as provided in paragraph (b)(6) of this section, a 
tank car which does not conform to the requirements of this paragraph 
(f)(1), and was authorized for a hazardous substance under the 
regulations in effect on June 30, 1996, may continue in use until July 
1, 2006.
    (2) List of hazardous substances. Hazardous substances for which the 
provisions of this paragraph (f) apply are as follows:

Aldrin
Allyl chloride
alpha-BHC
beta-BHC
delta-BHC
gamma-BHC
Bis(2-chloroethyl) ether
Bromoform
Carbon tetrachloride
Chlordane
p-Chloroaniline
Chlorobenzene
Chlorobenzilate
p-Chloro-m-cresol
2-Chloroethyl vinyl ether
Chloroform
2-Chloronapthalene
o-Chlorophenol
3-Chloropropionitrile
DDE
DDT
1,2-Dibromo-3-chloropropane
m-Dichlorobenzene
o-Dichlorobenzene
p-Dichlorobenzene
3,3'-Dichlorobenzidine
1,4-Dichloro-2-butene
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethylene
Dichloroisopropyl ether
Dichloromethane @
2,4-Dichlorophenol
2,6-Dichlorophenol
1,2-Dichloropropane
1,3-Dichloropropene
Dieldrin
alpha-Endosulfan
beta-Endosulfan
Endrin
Endrin aldehyde
Heptachlor
Heptachlor epoxide
Hexachlorobenzene
Hexachlorobutadiene
Hexachloroethane
Hexachlorophene
Hexachloropropene
Isodrin

[[Page 388]]

Kepone
Methoxychlor
4,4'-Methylenebis(2-chloroaniline)
Methylene bromide
Pentachlorobenzene
Pentachloroethane
Pentachloronitrobenzene (PCNB)
Pentachlorophenol
Polychlorinated biphenyls (PCBs)
Pronamide
Silvex (2,4,5-TP)
2,4,5-T
TDE
1,2,4,5-Tetrachlorobenzene
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)
Tetrachloroethane
Tetrachloroethylene
2,3,4,6-Tetrachlorophenol
Toxaphene
1,2,4-Trichlorobenzene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethylene
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
Tris(2,3-dibromopropyl) phosphate
[Amdt. 173-245, 60 FR 49072, Sept. 21, 1995, as amended by Amdt. 173-
245, 61 FR 33254, June 26, 1996; Amdt. 173-256, 61 FR 51338, Oct. 1, 
1996]



Sec. 173.32  Qualification, maintenance and use of portable tanks other than Specification IM portable tanks.

    (a) Except as otherwise provided in this section, each portable tank 
used for the transportation of hazardous materials must conform to the 
requirements of the specification and regulations for the transportation 
of the particular commodity. Except for Specification 56 and 57 portable 
tanks, a manufacturer's data report of the portable tank must be 
procured and retained in the files of the owner during the time that 
such portable tank is used for such service.
    (1) When a portable tank container is used as a cargo tank 
container, it shall conform to all the requirements prescribed for cargo 
tank containers. (See Sec. 173.33)
    (2) [Reserved]
    (3) Each uninsulated portable tank used for the transportation of 
compressed gases, as defined in Sec. 173.115, must have an exterior 
surface finish conforming to Sec. 178.245-1(c) of this subchapter.
    (4) No portable tank or specification 106A or 110A tank containing a 
hazardous material may be offered for transportation aboard a passenger 
vessel unless:
    (i) The vessel is operating under a change to its character of 
vessel certification as defined in Sec. 171.8 of this subchapter; and
    (ii) The material is permitted to be transported aboard a passenger 
vessel in Sec. 172.101 of this subchapter.
    (5) Where IM-101 and IM-102 portable tanks are prescribed, 
Specification 51 portable tanks otherwise conforming to the special 
commodity requirements of Sec. 172.102(c)(7) of this subchapter may be 
used.
    (6) A DOT 51 portable tank may be used where DOT 56 or DOT 57 type 
portable tanks or DOT 60 portable tanks are authorized. A DOT 60 
portable tank may be used where DOT 56 or DOT 57 type portable tanks are 
authorized. A higher integrity tank used instead of a specified portable 
tank must meet the same design profile; e.g., a DOT 51 portable tank 
must be lined if used instead of a lined DOT 60 portable tank.
    (b) Any portable tank container constructed prior to May 15, 1950, 
complying with the requirements of either the A. S. M. E. Code for 
Unfired Pressure Vessels, 1946 Edition, or the A. P. I.-A. S. M. E. Code 
for Unfired Pressure Vessels, 1943 Edition, may be used for the 
transportation of liquefied compressed gas, provided it fulfills all the 
requirements of this part and specifications for the particular gas or 
gases to be transported therein and shall be marked ``ICC Specification 
51X'' on the plate required by the specification, except as modified by 
any or all of the following:
    (1) Tanks designed and constructed in accordance with Pars. U-68, U-
69, or U-201 of the A. S. M. E. Code may be used. Tanks designed and 
constructed in accordance with Par. U-68 or U-69 may be re-rated at a 
working pressure 25 percent in excess of the design pressure for which 
the tank was originally constructed. If advantage is taken of the 
increased rating, the re-rated pressure shall be marked on the plate as 
follows:

[[Page 389]]

                     Re-rated working pressure--psig

    Note 1: For purposes of setting safety relief valves, pressure 
control valves and establishing retest pressure, and for purposes of 
establishing maximum and minimum design pressures, the re-rated working 
pressure shall be considered as the equivalent of the design pressure as 
defined in the specification.

    (2) Loading and unloading accessories, valves, piping, fittings, 
safety and gauging devices, do not have to comply with the requirements 
for the particular location on the tank.
    (3) Specification requirements as to stress-relieving and 
radiographing are waived.
    (c) Any portable tank container of ICC Specification 50 1 
fulfilling the requirements of that specification may be continued in 
service for transportation of a liquefied petroleum gas if it is 
retested every five years in accordance with the requirements of 
paragraphs (e)(3) and (4) of this section: Provided, That it is in and 
can be maintained in safe operating condition for the transportation of 
that gas. In this case the container may retain its original markings.
---------------------------------------------------------------------------

    1 Use of existing portable tanks authorized, but new 
construction not authorized.
---------------------------------------------------------------------------

    (d) Use of Specification 52, 53, 56 and 57 portable tanks. Continued 
use of an existing portable tank constructed to DOT Specification 52 or 
53 is authorized only for a tank constructed before June 1, 1972. 
Continued use of an existing portable tank constructed to DOT 
Specification 56 or 57 is authorized only for a tank constructed before 
October 1, 1996. A stainless steel portable tank internally lined with 
polyethylene, which was constructed on or before October 1, 1996, and 
complies with all requirements of Specification 57 except that it is 
equipped with a polypropylene discharge ball valve and polypropylene 
secondary discharge opening closure, may be marked as a Specification 57 
portable tank and used in accordance with the provisions of this 
section.
    (e) Retest. Each portable tank used for the transportation of a 
hazardous material must be successfully retested before further use in 
accordance with the following:
    (1) Schedule. Each tank must be retested as prescribed in paragraph 
(e)(2) of this section, in accordance with the following schedule:
    (i) Specification 51 (Sec. 178.245 of this subchapter): At least 
once every 5 years.
    (ii) Specifications 52, 53, 56 and 57 portable tanks (Secs. 178.251, 
178.252, 178.253 of this subchapter): At least once every 2.5 years.
    (iii) Specification 60 (Sec. 178.255 of this subchapter): At the end 
of the first 4-year period after the original test; at least once every 
2 years thereafter up to a total of 12 years of service; and at least 
once annually thereafter. Retesting is not required on a rubber-lined 
tank except before each relining.
    (iv) Any other portable tank authorized by this part for 
transportation of compressed gases (including liquefied compressed 
gases): At least once every 5 years.
    (2) Test procedures. Unless otherwise specified, each tank must be 
retested in accordance with the following test procedures:
    (i) Pressure. Each Specification 60 tank must be retested in 
accordance with Sec. 178.255-12 of this subchapter. Each Specification 
57 tank must be leak tested by a minimum sustained air pressure of at 
least three pounds per square inch gage applied to the entire tank. Any 
other tank must be tested by a minimum pressure (air or hydrostatic) of 
at least 2 pounds per square inch gage or at least one and one-half 
times the design pressure (maximum allowable working pressure, or re-
rated pressure) of the tank, whichever is greater. During each air 
pressure test, the entire surface of all joints under pressure must be 
coated with or immersed in a solution of soap and water, heavy oil, or 
other material suitable for the purpose of detecting leaks. The pressure 
must be held for a period of time sufficiently long to assure detection 
of leaks. During the air or hydrostatic test, relief devices may be 
removed, but all the closure fittings must be in place and the relief 
device openings plugged. Lagging need not be removed from a lagged tank 
if it is possible to maintain the required test pressure at constant 
temperature with

[[Page 390]]

the tank disconnected from the source of pressure.
    (ii) Visual. While under the test pressure, the tank must be 
visually inspected for leakage, defective fittings and welds, defective 
closures, significant dents, and other defects or abnormalities which 
indicate a potential or actual weakness that could render the tank 
unsafe for the transportation of a hazardous material.
    (iii) Rejection criteria. A tank fails to meet the requirements of 
the pressure test if, during the test, there is permanent distortion of 
the tank exceeding that permitted by the applicable specification, if 
there is any leakage, or if any deficiencies described in paragraph 
(e)(2)(ii) of this section are found. Any tank that fails must be 
rejected and may not be used again for the transportation of a hazardous 
material unless the tank is adequately repaired and thereafter a 
successful test is conducted in accordance with the requirements of this 
paragraph.
    (3) Marking. The date of the most recent periodic retest must be 
marked on the tank, on or near the metal certification plate. Marking 
must be in accordance with Sec. 178.3 of this subchapter.
    (4) Records. The owner of the tank or his authorized agent must 
retain a written record indicating the date and results of all required 
tests and the name and address of the tester, until the next retest has 
been satisfactorily completed and recorded.
    (5) A portable tank for which the prescribed retest or reinspection 
under paragraph (e)(1) of this section has become due may not be filled 
and offered for transportation until the retest or reinspection has been 
successfully completed. This paragraph does not apply to any tank filled 
prior to the test due date.
    (f) Special tanks. Each portable tank authorized by this part 
including each exemption tank (other than a tank covered by paragraph 
(e)(1)(iv) of this section) which is not in compliance with one of the 
specifications listed in paragraph (e) of this section, must be tested 
in accordance with the procedures prescribed in paragraph (e) of this 
section for the type of portable tank most nearly equivalent in design 
and usage. A tank constructed in accordance with paragraph U-68 or U-69 
of previous editions of the ASME Code, and which has not been re-rated, 
must be hydrostatically retested at twice the design pressure instead of 
the one and one-half times prescribed in paragraph (e)(2)(i) of this 
section.
    (g) Deteriorated tanks. Without regard to any other retest 
requirements, any tank that shows evidence at any time of significant 
dents, corroded areas, leakage, or other conditions that indicate 
weakness which could render the tank unsafe for the transportation of a 
hazardous material, must be retested as prescribed in paragraph (e)(2) 
of this section.
    (h) Damaged tanks. Any tank that has been in an accident and that 
has been damaged to an extent that may adversely affect its product 
retention capability, must be retested as prescribed in paragraph (e)(2) 
of this section.
    (i) Unused tanks. Any tank that has not been used to transport a 
hazardous material for a period of 1 year or more may not be returned to 
hazardous materials service until it has been tested successfully in 
accordance with the requirements of paragraph (e)(2) of this section.
    (j) The Department may require the testing under prescribed 
conditions of any tank when probable cause appears for suspecting that 
such tank is in unsafe operating condition.
    (k) The repair of tanks is authorized, provided such repairs are 
made under requirements prescribed in the ``Code'' for the original 
design and construction.
    (1) In addition to any other provisions of the specification, no 
tank shall be repaired, or remodeled, as to cause leakage or cracks or 
likelihood of leakage or cracks, by areas of stress concentration due to 
shrinkage of cooling metal in welding operations, sharp fillets, 
reversal of stresses, or otherwise.
    (2) No field welding shall be done except to non-pressure parts.
    (l) The bursting strength of any piping and fittings shall be not 
less than four times the design pressure of the tank, and not less than 
four times that pressure to which, in any instance, it may be subjected 
in service, by the action of a pump or other device (not including 
safety relief valves) the action

[[Page 391]]

of which may be to subject certain portions of the tank piping to 
pressures greater than the design pressure of the tank.
    (1) Pipe joints shall be threaded, welded or flanged. If threaded 
pipe is used, the pipe and pipe fittings must not be lighter than 
(Schedule 80) weight. Nonmalleable metals must not be used in the 
construction of valves or fittings. Where copper tubing is permitted, 
joints must be brazed or be of equally strong metal union type. The 
melting point of brazing material may not be lower than 1000 deg.F. The 
method of joining tubing must not decrease the strength of the tubing 
such as by the cutting of threads.
    (2) Fittings shall be extra heavy. Non-malleable metals shall not be 
employed in the construction of valves or fittings.
    (3) Suitable provision shall be made in every case to allow for 
expansion, contraction, jarring and vibration of all pipe. Slip joints 
shall not be used for this purpose.
    (4) Piping and fittings shall be grouped in the smallest practicable 
space and shall be protected from damage as required by the 
specification.
    (5) All piping, valves and fittings on every tank shall be leakage 
tested with gas or air after installation and proved tight at not less 
than the design pressure of the tank on which they are used. In the 
event of replacement, all such piping, valves, or fittings so replaced 
shall be tested in accordance with the requirements of this section 
before the tank is returned to transportation service. The requirements 
of this section shall apply with equal force to all hose used on such 
tanks, except that such hose may be so tested either before or after 
installation on the tank.
    (m) All materials of construction used in portable tank containers 
and their appurtenances shall not be subject to destructive attack by 
the contents of the tank.
    (1) All parts of tanks and appurtenances for anhydrous ammonia shall 
be steel. No copper, silver, zinc, nor their alloys shall be permitted. 
Brazed joints shall not be permitted.
    (2) [Reserved]
    (n) Each outlet of portable tanks used for the transportation of 
liquefied compressed gases, except carbon dioxide, shall be provided 
with a suitable automatic excess-flow valve. These valves shall be 
located inside the tank or at a point outside the tank where the line 
enters or leaves the tank. The valve seat shall be located inside the 
tank or shall be located within a welded flange or its companion flange, 
or within a nozzle or within a coupling. The installation shall be made 
in such a manner as reasonably to assure that any undue strain which 
causes failure requiring functioning of the valve shall cause failure in 
such a manner that it will not impair the operation of the valve.

    Exception. Safety device connections and liquid level gauging 
devices which are so constructed that the outward flow of tank contents 
shall not exceed that passed by a No. 54 drill size opening are not 
required to be equipped with excess-flow valves.

    (1) Excess-flow valves shall close automatically at the rated flows 
of gas or liquid as specified by the valve manufacturer. The connections 
or lines on each side of the excess-flow valve, including valves, 
fittings, etc., shall have a greater capacity than the rated flow of the 
excess-flow valve.
    (2) Excess-flow valves may be designed with a by-pass, not to exceed 
a No. 60 drill size opening, to allow equalization of pressures.
    (3) Filling and discharge lines shall be provided with manually 
operated shut-off valves located as close to the tank as is practicable. 
The use of so-called ``Stop-Check'' valves to satisfy with one valve the 
requirements of this paragraph and of paragraph (n) of this section, is 
forbidden.
    (o) Each tank for carbon dioxide and nitrous oxide shall be lagged 
with a suitable insulation material of such thickness that the overall 
thermal conductance is not more than 0.08 Btu per square foot per degree 
F. differential in temperature per hour. The conductance shall be 
determined at 60 deg. F. Insulation material used on tanks for nitrous 
oxide shall be noncombustible.
    (p) A refrigerating and/or heating coil or coils may be installed in 
tanks for carbon dioxide and nitrous oxide. Such coils must be tested 
externally to at

[[Page 392]]

least the same pressure as the test pressure of the tank. The coils must 
also be tested internally to at least twice the working pressure of the 
heating or refrigerating system to be used but in no case less than the 
test pressure of the tank. Such coils shall be securely anchored. The 
refrigerant or heating medium to be circulated through the coil or coils 
must be such as to cause no adverse chemical reaction with the tank or 
tank contents in case of leakage.
    (q) Maximum Lading Pressure. Prior to filling and offering a 
portable tank for transportation, the person must confirm that the 
portable tank conforms to the specification required for the lading and 
that the maximum allowable working pressure (MAWP) of the portable tank 
is greater than or equal to the largest pressure obtained under the 
following conditions:
    (1) For compressed gases and certain refrigerated liquids that are 
not cryogenic liquids, the pressure prescribed in Sec. 173.315 of this 
subchapter.
    (2) For liquid hazardous materials not covered in paragraph (q)(1) 
of this section, the sum of the vapor pressure of the lading at 46 
deg.C (115  deg.F), plus the tank static head exerted by the lading, 
plus any pressure exerted by the gas padding, including air in the 
ullage space.
    (3) The pressure prescribed in subpart B, D, E, F, G, or H of this 
part, as applicable.
    (4) The maximum pressure used to load or unload the lading.
    (r) Unless otherwise specified, where a portable tank is authorized, 
minimum tank design pressure is 172 kPa (25 psig) for any Packing Group 
I or Packing Group II liquid lading that meets more than one hazard 
class definition.
    (s) Any DOT specification portable tank manufactured prior to 
January 1, 1992 that is equipped with a non-reclosable pressure relief 
device can continue in service for the commodities for which it is 
authorized. Except for DOT Specification 56 and 57 portable tanks, any 
DOT specification portable tank manufactured after January 1, 1992 used 
for materials meeting the definition for Division 6.1 liquids, Packing 
Group I or II, Class 2 gases, or Class 3 or 4 liquids, must be equipped 
with a reclosing pressure relief valve having adequately-sized venting 
capacity.
    (t) Exemption portable tanks based on DOT 51 portable tanks. (1) The 
owner of a portable tank constructed in accordance with and used under 
an exemption issued prior to August 31, 1996, that was in conformance 
with the requirements for Specification DOT 51 portable tanks with the 
exception of the location of fill and discharge outlets, shall examine 
the portable tank and its design to determine if it meets the new outlet 
requirements contained in Sec. 178.245-1(d) of this subchapter. If the 
owner determines that the portable tank is in compliance with all the 
requirements of Sec. 178.245 of this subchapter, the exemption number 
stenciled on the portable tank shall be removed and the specification 
plate (or a plate placed adjacent to the specification plate) shall be 
durably marked ``DOT 51--E*****'' (where ***** is to be replaced by the 
exemption number).
    (2) During the period the portable tank is in service, and for one 
year thereafter, the owner of the portable tank must retain on file at 
its principal place of business a copy of the last exemption in effect.
[29 FR 18671, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.32, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.32a  Approval of Specification IM portable tanks.

    (a) Application for approval. (1) An owner or manufacturer of an IM 
portable tank (Secs. 178.270 through 178.272 of this subchapter) shall 
apply for approval to any approval agency designated to approve that 
tank in accordance with the procedures in subpart E, part 107 of this 
chapter.
    (2) Each application for approval must contain the following 
information:
    (i) Three complete copies of all engineering drawings, calculations, 
and test data necessary to insure that the design complies with the 
relevant specification.

[[Page 393]]

    (ii) The manufacturer's serial number that will be assigned to each 
portable tank.
    (iii) A statement as to whether the design type has been examined by 
any approval agency previously and judged unacceptable. Affirmative 
statements must be documented with the name of the approving agency, 
reason for nonacceptance, and the nature of modifications made to the 
design type.
    (b) Action by approval agency. The approval agency shall:
    (1) Review the application for approval to determine whether it is 
complete and conforms with the requirements of paragraph (a) of this 
section. If an application is incomplete, it will be returned to the 
applicant and the applicant will be informed in what respects the 
application is incomplete.
    (2) Review all drawings and calculations to ensure that the design 
is in compliance with all requirements of the relevant specification. If 
the application is approved, one set of the approved drawings, 
calculations, and test data shall be returned to the applicant. The 
second and third (inspector's copy) sets of approved drawings, 
calculations, and test data shall be retained by the approval agency.
    (3) Witness all tests required in Sec. 178.270-13 of this 
subchapter.
    (4) Ensure, through appropriate inspection that each IM portable 
tank is fabricated in all respects in conformance with the approved 
drawings, calculations, and test data; and
    (5) Upon successful completion of all requirements of this subpart, 
the approval agency shall:
    (i) Apply its name, identifying mark or identifying number, and the 
date upon which the approval was issued, to the metal identification 
plate required by Sec. 178.270-14 of this subchapter.
    (ii) Issue an approval certificate for each IM portable tank or, in 
the case of a series of identical tanks manufactured to a single design, 
for the series of IM portable tanks. The approval certificate must 
include all the information required to be displayed on the required 
metal identification plate.
    (c) Disposition of approval certificates. A copy of each approval 
certificate must be retained by the approval agency and by the owner of 
each IM portable tank.
    (d) Denial of application for approval. If an approval agency finds 
that an IM portable tank cannot be approved for any reason, it shall so 
notify the applicant in writing and shall provide the applicant with the 
reasons for which the approval is denied. An applicant aggrieved by a 
decision of an approval agency may appeal the decision in writing within 
90 days of receipt to the Associate Administrator for Hazardous 
Materials Safety.
    (e) [Reserved]
    (f) Approval of other existing IM portable tanks. Portable tanks 
constructed on or before May 1, 1981, that have not operated under a DOT 
exemption must be approved in accordance with the provisions of 
paragraph (b) of this section.
    (g) Modifications to approved portable tanks. (1) Prior to 
modification of any approved portable tank which may affect conformance 
to Sec. 178.271 or Sec. 178.272 of this subchapter, the owner or 
manufacturer desiring to make such modification shall inform the 
approval agency that issued the initial approval of the portable tank 
(or if unavailable another approval agency) of the nature of the 
modification and request approval of the modification. The owner or 
manufacturer shall supply the approval agency with three sets of all 
revised drawings, calculations, and test data relative to the intended 
modification.
    (2) A statement as to whether the intended modification has been 
examined by any approval agency previously and judged unacceptable. An 
affirmative statement must be documented with the name of the approving 
agency, the reason for nonacceptance, and the nature of changes made to 
the modification since its original rejection.
    (3) The approval agency shall review the request for modification, 
and if it is determined that the proposed modification is in full 
compliance with the relevant DOT specification the request shall be 
approved and the approval agency shall:
    (i) Return one set of the approved revised drawings, calculations, 
and test data to the applicant. The second and

[[Page 394]]

third sets of the approved revised drawings, calculations, and test data 
shall be retained by the approval agency as required in 
Sec. 107.404(a)(3) of this chapter.
    (ii) Ensure through appropriate inspection, that all modifications 
conform to the revised drawings, calculations, and test data.
    (iii) Determine the extent to which retesting of the modified tank 
is necessary based on the nature of the proposed modification, and 
ensure that all required retests are performed in accordance with 
Sec. 178.270-13 of this subchapter.
    (iv) If modification to an approved tank alters any information on 
the approval certificate, issue a new approval certificate for the 
modified tank and ensure that any necessary changes are made to the 
metal identification plate. A copy of each newly issued approval 
certificate shall be retained by the approval agency and by the owner of 
each portable tank.
    (4) If it determined that the proposed modification is not in 
compliance with the relevant DOT specification, the request shall be 
denied. The procedures of paragraph (d) of this section apply to such 
denial.
    (h) Termination of Approval Certificate. (1) The Associate 
Administrator for Hazardous Materials Safety may terminate an approval 
issued under this section if he determines that:
    (i) Information upon which the approval was based is fraudulent or 
substantially erroneous; or
    (ii) Termination of the approval is necessary to adequately protect 
against risks to life and property.
    (iii) The approval was not issued by the approval agency in good 
faith.
    (2) Before an approval is withdrawn, the Associate Administrator for 
Hazardous Materials Safety gives the owner or manufacturer and the 
approval agency:
    (i) Written notice of the facts or conduct believed to warrant the 
withdrawal;
    (ii) Opportunity to submit oral and written evidence, and
    (iii) Opportunity to demonstrate or achieve compliance with the 
application requirement.
    (3) If the Associate Administrator for Hazardous Materials Safety 
determines that a certificate of approval must be withdrawn to preclude 
a significant and imminent adverse affect on public safety, he shall 
withdraw the certificate of approval issued by a designated approval 
agency. In such circumstances, the procedures of paragraphs (h)(2) (ii) 
and (iii) of this section need not be provided prior to withdrawal of 
the approval, but shall be provided as soon as practicable thereafter.
[Amdt. 173-144, 46 FR 9890, Jan. 29, 1981, as amended by Amdt. 173-185, 
50 FR 11052, Mar. 19, 1985; Amdt. 173-224, 56 FR 66279, Dec. 20, 1991; 
Amdt. 173-253, 61 FR 27174, May 30, 1996]



Sec. 173.32b  Periodic testing and inspection of Specification IM portable tanks.

    (a) Periodic testing--(1) Hydrostatic test. Each Specification IM 
portable tank (Secs. 178.270, 178.271 and 178.272 of this subchapter) 
and all piping, valves and accessories, except pressure-relief devices, 
shall be hydrostatically tested with water, or other liquid of similar 
density and viscosity, to a pressure not less than 150 percent of its 
maximum allowable working pressure. Testing shall be at intervals of not 
more than five years. While under pressure the tank shall be inspected, 
for leakage, distortion, or any other condition which might render the 
tank unsafe for service. The hydrostatic test shall be witnessed by an 
approval agency. Any damage or deficiency which might render the 
portable tank unsafe for service shall be repaired to the satisfaction 
of the witnessing approval agency and the tank hydrostatically retested. 
Upon successful completion of the hydrostatic test, the witnessing 
approval agency shall apply its name, identifying mark or identifying 
number and the date of the test on the tank as described in paragraph 
(d) of this section.
    (2) Pressure relief valves. Spring loaded pressure relief valves 
must be removed from the tank and tested at intervals of not more than 
two and one-half years.

[[Page 395]]

    (b) Visual inspection. Each portable tank and all piping, valves and 
accessories shall be visually inspected at intervals not exceeding two 
and one-half years. The inspection shall be conducted by an owner or his 
agent or by an approval agency, except that it must be conducted by an 
approval agency coincident with each hydrostatic test required by 
paragraph (a) of this section. In the case of insulated tanks, 
insulation need not be removed if, in the opinion of the person 
performing the visual inspection, external corrosion is likely to be 
negligible. If evidence of any unsafe condition is discovered, the 
portable tank may not be returned to service until such condition has 
been corrected to the satisfaction of the person performing the 
inspection. The inspection shall include the following:
    (1) The tank shall be carefully inspected internally for corroded 
areas, dents, distortions, defects in welds, and other conditions that 
might render the tank unsafe for service;
    (2) The piping, valves, and gaskets shall be carefully inspected for 
corroded areas, defects in welds, and other conditions, including 
leakage, that might render the tank unsafe for service;
    (3) Devices for tightening manhole covers must be operative and 
there must be no leakage at manhole covers or gaskets.
    (4) Missing or loose bolts or nuts on any flanged connection or 
blank flange must be replaced or tightened.
    (5) All emergency devices and valves must be free from corrosion, 
distortion and any damage or defect that could prevent their normal 
operation.
    (6) Required markings on the tank must be legible.
    (7) Upon successful completion of the visual reinspection, the 
inspector shall mark the date of the visual reinspection on the tank as 
described in paragraph (d) of this section.
    (c) International shipments. A portable tank that meets the 
definition of ``container'' in Sec. 450.3(a)(3) of this title may not be 
offered for international transport unless the frame work, tank supports 
and lifting attachments fully comply with all applicable requirements of 
parts 450--453 of this title.
    (d) Test date marking. The month and year of the last hydrostatic 
test, the identification markings of the approval agency witnessing the 
test, and the date of the last visual inspection must be durably and 
legibly marked on or near the metal identification plate in letters not 
less than 3 mm (0.118 inches) high when on the metal identification 
plate and 32 mm (1.25 inches) high when on the tank.
    (e) Damaged or deteriorated portable tanks. Without regard to any 
other test requirement, any tank that shows evidence at any time of 
damaged or corroded areas, leakage, or other deterioration that 
indicates a weakness that could render the tank unsafe for service, must 
be inspected and tested in accordance with the requirements of 
paragraphs (a) and (b) of this section prior to reuse. Pressure relief 
devices need not be tested or replaced unless there is reason to believe 
the relief devices have been affected by the damage or deterioration.
    (f) Record retention. The owner of each portable tank or his 
authorized agent shall retain a written record of the date and results 
of all required tests, (including visual inspections), and the name and 
address of the person performing the test, until the next retest has 
been satisfactorily completed and recorded.
[Amdt. 173-144, 46 FR 9891, Jan. 29, 1981]



Sec. 173.32c  Use of Specification IM portable tanks.

    (a) No person may offer a hazardous material for transportation in 
an IM portable tank except as authorized by this subchapter.
    (b) Except as otherwise provided in this subpart, an IM portable 
tank may not be used for the transportation of a hazardous material 
unless it meets the requirements of this subchapter.
    (c) An IM portable tank for which the prescribed periodic retest or 
reinspection under Sec. 173.32b of this subchapter has become due may 
not be filled and offered for shipment until the retest or reinspection 
has been successfully completed. This paragraph does not apply to any 
tank filled prior to the test due date.
    (d) Prior to filling, each IM portable tank shall be given a 
complete external

[[Page 396]]

inspection. Any unsafe condition must be corrected prior to its use. The 
external inspection shall include:
    (1) A visual inspection of:
    (i) The shell, piping, valves and other appurtenances for corroded 
areas, dents, defects in welds and other defects such as missing, 
damaged, or leaking gaskets;
    (ii) All flanged connections or blank flanges for missing or loose 
nuts and bolts;
    (iii) All emergency devices for corrosion, distortion, or any damage 
or defect that could prevent their normal operation; and
    (iv) All required markings on the tank for legibility.
    (2) An inspection to determine that any device for tightening 
manhole covers is operative and adequate to prevent leakage at the 
manhole cover.
    (e) A hazardous material may not be loaded in an IM portable tank if 
the part of the tank or any of its appurtenances having contact with the 
material during transportation would be subject to destructive attack by 
or a dangerous reaction with the material.
    (f) A hazardous material may not be loaded in an IM portable tank 
unless it has pressure relief devices providing total relieving capacity 
meeting the requirements of Sec. 178.270-11(d) of this subchapter.
    (g) A hazardous material may not be loaded in an IM portable tank 
with filling or discharge connections located below the normal liquid 
level of the tank unless:
    (1) Each filling or discharge connection located below the normal 
liquid level of the tank has at least two serially-mounted closures 
consisting of an internal discharge valve and a bolted blank flange or 
other suitable, liquid-tight closure on each filling or discharge 
connection; or
    (2) When this paragraph (g)(2) is specified for a hazardous material 
through Sec. 172.102(c)(7) of this subchapter, each filling or discharge 
connection located below the normal liquid level of the tank, or 
compartment thereof, has three serially-mounted closures consisting of 
an internal discharge valve capable of being closed from a location 
remote from the valve itself, an external valve, and a bolted blank 
flange or other suitable, liquid-tight closure on the outlet side of the 
external valve.
    (h) Except during a hydrostatic test, an IM portable tank may not be 
subjected to a pressure greater than its maximum allowable working 
pressure.
    (i) An IM portable tank may not be loaded to a gross weight greater 
than the maximum allowable gross weight specified on its identification 
plate.
    (j) An IM portable tank or compartment thereof having a volume 
greater than 7,500 L may not be loaded to a filling density less than 80 
percent by volume.
    (k) The outage for an IM portable tank may not be less than 2 
percent at a temperature of 122 deg.F (50 deg.C).
    (l) Each tell-tale indicator for the space between a frangible disc 
and a safety relief valve mounted in series must be checked after the 
tank is filled and prior to transportation to ensure that the frangible 
disc is leak free. Any leakage through the frangible disc must be 
corrected prior to offering the tank for transportation. The tell-tale 
device must be designed to prevent the loss of any hazardous material 
through the device itself while the tank is in transportation.
    (m) An IM portable tank containing a hazardous material may not be 
loaded on a highway or rail transport vehicle unless loaded entirely 
within the horizontal outline thereof, without overhang or projection of 
any part of the tank assembly.
    (n) Specifications IM 101 and IM 102 portable tanks used for the 
transportation of flammable liquids via rail may not be fitted with 
nonreclosing pressure relief devices except in series with spring loaded 
pressure relief valves.
    (o) An IM 101 tank may be used whenever an IM 102 tank is authorized 
provided it meets the requirements for pressure relief devices, bottom 
outlets and any other special provisions specified for the IM 102 tank 
in Sec. 172.102 of this subchapter.
    (p) Any IM 101 or IM 102 portable tank certified by an approval 
agency prior to January 1, 1992, that is equipped with a non-reclosable 
pressure relief device may continue in service for the commodities for 
which it is

[[Page 397]]

authorized. Any IM 101 and IM 102 portable tank certified after January 
1, 1992, used for materials meeting the definition for Division 6.1 
liquids, Packing Group I or II, or Class 3 or 4 liquids, must be 
equipped with a reclosing pressure relief valve having adequately-sized 
venting capacity.
    (q) If the hazardous material being transported is in a molten 
state, the tank must be thermally insulated by completely covering it 
with at least 100 mm (3.94 inches) of cork or other suitable insulation 
material of sufficient thickness that the overall thermal conductance is 
not more than 0.080 Btu per hour per square foot per degree Fahrenheit 
differential.
    (r) Hazardous materials authorized for transport in a tank fitted 
with bottom outlets having two serially mounted closures are also 
authorized for transport in a tank fitted with three serially mounted 
closures and in tanks fitted with no bottom outlets. Similarly, 
hazardous materials authorized for transport in tanks fitted with bottom 
outlets having three serially mounted closures are also authorized for 
transport in tanks fitted with no bottom outlets.
[Amdt. 173-144, 46 FR 9892, Jan. 29, 1981, as amended by Amdt. 173-224, 
55 FR 52616 Dec. 21, 1990; 56 FR 66266, Dec. 20, 1991; 57 FR 45460, 
45461, Oct. 1, 1992; Amdt. 173-261, 62 FR 24719, May 6, 1997]



Sec. 173.33  Hazardous materials in cargo tank motor vehicles.

    (a) General requirements. (1) No person may offer or accept a 
hazardous material for transportation in a cargo tank motor vehicle 
except as authorized by this subchapter.
    (2) Two or more materials may not be loaded or accepted for 
transportation in the same cargo tank motor vehicle if, as a result of 
any mixture of the materials, an unsafe condition would occur, such as 
an explosion, fire, excessive increase in pressure or heat, or the 
release of toxic vapors.
    (3) No person may fill and offer for transportation a specification 
cargo tank motor vehicle for which the prescribed periodic retest or 
reinspection under subpart E of part 180 of this subchapter is past due 
until the retest or inspection has been successfully completed. This 
requirement does not apply to a cargo tank supplied by a motor carrier 
who is other than the person offering the hazardous material for 
transportation (see Sec. 177.824 of this subchapter), or to any cargo 
tank filled prior to the retest or inspection due date.
    (b) Loading requirements. (1) A hazardous material may not be loaded 
in a cargo tank if during transportation any part of the tank in contact 
with the hazardous material lading would have a dangerous reaction with 
the hazardous material.
    (2) A cargo tank may not be loaded with a hazardous material that 
will have an adverse effect on the tank's integrity or--
    (i) May combine chemically with any residue or contaminants in the 
tank to produce an explosion, fire, excessive increase in pressure, 
release of toxic vapors or other unsafe condition.
    (ii)--(iii) [Reserved]
    (iv) May severely corrode or react with the tank material at any 
concentration and temperature that will exist during transportation.
    (v) Is prohibited by Sec. 173.21 or Sec. 173.24 of this subchapter.
    (3) Air pressure in excess of ambient atmospheric pressure may not 
be used to load or unload any lading which may create an air-enriched 
mixture within the flammability range of the lading in the vapor space 
of the tank.
    (4) To prevent cargo tank rupture in a loading or unloading 
accident, the loading or unloading rate used must be less than or equal 
to that indicated on the cargo tank specification plate, except as 
specified in Sec. 173.318(b)(6). If no loading or unloading rate is 
marked on the specification plate, the loading or unloading rate and 
pressure used must be limited such that the pressure in the tank may not 
exceed 130% of the MAWP.
    (c) Maximum Lading Pressure. (1) Prior to loading and offering a 
cargo tank motor vehicle for transportation with material that requires 
the use of a specification cargo tank, the person must confirm that the 
cargo tank motor vehicle conforms to the specification required for the 
lading and that the MAWP of the cargo tank is greater than or equal to 
the largest

[[Page 398]]

pressure obtained under the following conditions:
    (i) For compressed gases and certain refrigerated liquids that are 
not cryogenic liquids, the pressure prescribed in Sec. 173.315 of this 
subchapter.
    (ii) For cryogenic liquids, the pressure prescribed in Sec. 173.318 
of this subchapter.
    (iii) For liquid hazardous materials loaded in DOT specification 
cargo tanks equipped with a 1 psig normal vent, the sum of the tank 
static head plus 1 psig. In addition, for hazardous materials loaded in 
these cargo tanks, the vapor pressure of the lading at 115  deg.F. must 
be not greater than 1 psig, except for gasoline transported in 
accordance with Special Provision B33 in Sec. 172.102(c)(3) of this 
subchapter.
    (iv) For liquid hazardous materials not covered in paragraph 
(c)(1)(i), (ii), or (iii) of this section, the sum of the vapor pressure 
of the lading at 115  deg.F, plus the tank static head exerted by the 
lading, plus any pressure exerted by the gas padding, including air in 
the ullage space or dome.
    (v) The pressure prescribed in subpart B, D, E, F, G, or H of this 
part, as applicable.
    (vi) The maximum pressure in the tank during loading or unloading.
    (2) Any Specification MC 300, MC 301, MC 302, MC 303, MC 305, MC 306 
or MC 312, cargo tank motor vehicle with no marked design pressure or 
marked with a design pressure of 3 psig or less may be used for an 
authorized lading where the pressure derived from Sec. 173.33(c)(1) is 
less than or equal to 3 psig. After December 31, 1990, a cargo tank may 
not be loaded and offered for transportation unless marked or remarked 
with an MAWP or design pressure in accordance with 49 CFR 180.405(k).
    (3) Any Specification MC 310 or MC 311 cargo tank motor vehicle may 
be used for an authorized lading where the pressure derived from 
Sec. 173.33(c)(1) is less than or equal to the MAWP or MWP, 
respectively, as marked on the specification plate.
    (4) Any cargo tank marked or certified before August 31, 1995, 
marked with a design pressure rather than an MAWP may be used for an 
authorized lading where the largest pressure derived from 
Sec. 173.33(c)(1) is less than or equal to the design pressure marked on 
the cargo tank.
    (5) Any material that meets the definition of a Division 6.1, 
Packing Group I or II (poisonous liquid) material must be loaded in a 
cargo tank motor vehicle having a MAWP of 25 psig or greater.
    (d) Relief system. (1) Non-reclosing pressure relief devices are not 
authorized in any cargo tank except when in series with a reclosing 
pressure relief device. However, a cargo tank marked or certified before 
August 31, 1995 which is fitted with non-reclosing pressure relief 
devices may continue to be used in any hazardous material service for 
which it is authorized. The requirements in this paragraph do not apply 
to MC 330, MC 331 and MC 338 cargo tanks.
    (2) Each cargo tank motor vehicle used to transport a liquid 
hazardous material with a gas pad must have a pressure relief system 
that provides the venting capacity prescribed in Sec. 178.345-10(e) of 
this subchapter. The requirements in this paragraph do not apply to MC 
330, MC 331 and MC 338 cargo tanks.
    (3) A cargo tank motor vehicle made to a specification listed in 
column 1 may have pressure relief devices or outlets conforming to the 
applicable specification to which the tank was constructed, or the 
pressure relief devices or outlets may be modified to meet the 
applicable requirement for the specification listed in column 2 without 
changing the markings on the tank specification plate. The venting 
capacity requirements of the original DOT cargo tank specification must 
be met whenever a pressure relief valve is modified.

                                                                        
------------------------------------------------------------------------
              Column 1                             Column 2             
------------------------------------------------------------------------
MC 300, MC 301, MC 302, MC 303, MC    MC 306 or DOT 406.                
 305.                                                                   
MC 306..............................  DOT 406.                          
MC 304..............................  MC 307 or DOT 407.                
MC 307..............................  DOT 407.                          
MC 310, MC 311......................  MC 312 or DOT 412.                
MC 312..............................  DOT 412.                          
MC 330..............................  MC 331.                           
------------------------------------------------------------------------

    (e) Retention of hazardous materials in product piping during 
transportation. DOT specification cargo tanks used for the 
transportation of any material that is a Division 6.1 (poisonous liquid)

[[Page 399]]

material, oxidizer liquid, liquid organic peroxide or corrosive liquid 
(corrosive to skin only) may not be transported with hazardous materials 
lading retained in the piping, unless the cargo tank motor vehicle is 
equipped with bottom damage protection devices meeting the requirements 
of Sec. 178.337-10 or Sec. 178.345-8(b) of this subchapter, or the 
accident damage protection requirements of the specification under which 
it was manufactured. This requirement does not apply to a residue which 
remains after the piping is drained. A sacrificial device (see 
Sec. 178.345-1 of this subchapter) may not be used to satisfy the 
accident damage protection requirements of this paragraph.
    (f) An MC 331 type cargo tank may be used where MC 306, MC 307, MC 
312, DOT 406, DOT 407 or DOT 412 type cargo tanks are authorized. An MC 
307, MC 312, DOT 407 or DOT 412 type cargo tank may be used where MC 306 
or DOT 406 type cargo tanks are authorized. A higher integrity tank used 
instead of a specified tank must meet the same design profile (for 
example, an MC 331 cargo tank must be lined if used in place of a lined 
MC 312 cargo tank.)
    (g) Unless otherwise specified, where MC 307, MC 312, DOT 407 or DOT 
412 cargo tanks are authorized, minimum tank design pressure is 172.4 
kPa (25 psig) for any Packing Group I or Packing Group II liquid lading 
that meets more than one hazard class definition.
    (h) Each liquid or vapor discharge opening in an MC 330 or MC 331 
cargo tank and each liquid filling and liquid discharge line in an MC 
338 cargo tank must be provided with a remotely controlled internal 
self-closing stop valve, except when an MC 330 or MC 331 cargo tank is 
marked and used exclusively to transport carbon dioxide, or except when 
an MC 338 is used to transport argon, carbon dioxide, helium, krypton, 
neon, nitrogen, and xenon. However, if the cargo tank motor vehicle was 
certified before January 1, 1995, this requirement is applicable only 
when an MC 330 or MC 331 cargo tank is used to transport a flammable 
liquid, flammable gas, hydrogen chloride (refrigerated liquid), or 
anhydrous ammonia; or when an MC 338 cargo tank is used to transport 
flammable ladings.
[Amdt. 173-212, 54 FR 25005, June 12, 1989, as amended at 55 FR 37048, 
Sept. 7, 1990; Amdt. 173-224, 55 FR 52616 Dec. 21, 1990; Amdt. 173-212, 
56 FR 27875, June 17, 1991; 57 FR 45461, Oct. 1, 1992; Amdt. 173-212, 58 
FR 12905, Mar. 8, 1993; Amdt. 173-212, 59 FR 1786, Jan. 12, 1994; Amdt. 
173-138, 59 FR 49133, Sept. 26, 1994; Amdt. 173-240, 59 FR 55172, Nov. 
3, 1994; Amdt. 173-241, 59 FR 67492, Dec. 29, 1994]



Sec. 173.34  Qualification, maintenance and use of cylinders.

    (a) General qualification for use of cylinders. (See Secs. 173.1 
through 173.30 for requirements applying to all shipments.)
    (1) No person may charge or fill a cylinder unless it is as 
specified in this part and part 178 of this subchapter. A cylinder that 
leaks, is bulged, has defective valves or safety devices, bears evidence 
of physical abuse, fire or heat damage, or detrimental rusting or 
corrosion, must not be used unless it is properly repaired and 
requalified as prescribed in these regulations.
    (2) When cylinders with a marked pressure limit are prescribed, 
other cylinders made under the same specification but with a higher 
marked service pressure limit are authorized. For example, cylinders 
marked DOT-4B500 may be used where DOT-4B300 is specified.
    (b) Grandfather clause. A cylinder in domestic use previous to the 
date upon which the specification therefor was first made effective in 
these regulations may be used if the cylinder has been properly tested 
and otherwise complies with the requirements applicable for the gas with 
which it is charged.
    (c) Cylinder marking. Each required marking on a cylinder must be 
maintained so that it is legible. Retest markings and original markings 
which are becoming illegible may be reproduced by stamping on a metal 
plate which must be permanently secured to the cylinder.
    (1) Additional information not affecting the markings prescribed in 
the applicable cylinder specification may be placed on the cylinder. No 
indentation may be made in the sidewall of the cylinder unless 
specifically permitted in the applicable specification.

[[Page 400]]

    (2) When the space originally provided for dates of subsequent 
retests becomes filled, the stamping of additional test dates into the 
external surface of the footring of a cylinder is authorized.
    (3) Except for marked service pressure, markings required on 
cylinders may not be altered or removed. The marked service pressure may 
be changed only upon application to the Associate Administrator for 
Hazardous Materials Safety and receipt of written instructions as to the 
procedure to be followed. A service pressure change is not authorized 
for a cylinder which fails to pass the prescribed periodic hydrostatic 
retest, unless it is reheat treated and requalified in accordance with 
this section.
    (d) Pressure relief device systems. No person may offer a cylinder 
charged with a compressed gas for transportation in commerce unless the 
cylinder is equipped with one or more pressure relief devices sized and 
selected as to type, location, and quantity and tested in accordance 
with CGA Pamphlet S-1.1 (compliance with paragraph 9.1.1.1 of CGA 
Pamphlet S-1.1 is not required). The pressure relief device system must 
be capable of preventing rupture of the normally charged cylinder when 
subjected to a fire test conducted in accordance with CGA Pamphlet C-14, 
or in the case of an acetylene cylinder, CGA Pamphlet C-12. Cylinders 
shall not be shipped with leaking safety relief devices. Safety relief 
devices must be tested for leaks before the charged cylinder is shipped 
from the cylinder filling plant; it is expressly forbidden to repair 
leaking fuse plug devices, where leak is through the fusible metal or 
between the fusible metal and the opening in the plug body, (except by 
removal of the device and replacement of the fusible metal.) Exceptions 
are as follows:
    (1) Except as provided in paragraphs (d)(1) (i) through (iii) of 
this section, a pressure relief device is not required on a cylinder 12 
inches or less in length, exclusive of neck, and 4\1/2\ inches or less 
in outside diameter.
    (i) A pressure relief device is required on a specification 9, 39 
(Sec. 178.65 of this subchapter), 40, or 41 cylinder. A metal pressure 
relief valve is required on a specification 39 cylinder used for a 
liquefied flammable gas. A fusible pressure relief device is not 
authorized on a specification 39 cylinder containing a liquefied 
compressed gas.
    (ii) A pressure relief device is required on a cylinder charged with 
a liquefied gas for which this part requires a service pressure of 1800 
psi or higher.
    (iii) A pressure relief device is required on a cylinder charged 
with a nonliquefied gas to a pressure of 1,800 psi or higher at 70 
deg.F.
    (2) Except for a specification 39 cylinder and a cylinder used for 
acetylene in solution, a pressure relief device is not required on a 
cylinder charged with a nonliquefied gas under pressure of 300 psi or 
less at 70  deg.F.
    (3) A pressure relief device is prohibited on a cylinder charged 
with a Division 2.3 or Division 6.1 material in Hazard Zone A.
    (4) A pressure relief device is prohibited on a cylinder charged 
with fluorine.
    (5) A pressure relief device is not required on a cylinder charged 
with methyl mercaptan; with mono-, di-, or trimethylamine, anhydrous; 
with not over 10 pounds of nitrosyl chloride; or with less than 165 
pounds of anhydrous ammonia.
    (6) Pressure relief devices, if used, must be in the vapor space of 
cylinders containing pyroforic liquids, inorganic or organic, n.o.s., 
covered by Sec. 173.124.
    (e) Periodic qualification and marking of cylinders. Each cylinder 
that becomes due for periodic retest as specified in the following table 
must be retested and marked in conformance with the requirements of this 
paragraph (e):

[[Page 401]]



                                     Retest and Inspection of Cylinders \1\                                     
----------------------------------------------------------------------------------------------------------------
   Specification under which                                                                                    
     cylinder was made \2\         Minimum retest pressure (p.s.i.) \3\            Retest period (years)        
----------------------------------------------------------------------------------------------------------------
DOT-3.........................  3,000 p.s.i..............................  5.                                   
DOT-3A, 3AA...................  5/3 times service pressure, except non-    5, 10, or 12 (see Sec.  173.34       
                                 corrosive service (see Sec.                (e)(14), (e)(12), (e)(16), and      
                                 173.34(e)(13)).                            (e)(19)).                           
DOT-3AL.......................  5/3 times service pressure...............  5 or 12 (see (e)(19)).               
DOT-3AX, 3AAX.................  5/3 times service pressure...............  5.                                   
3B, 3BN.......................  2 times service pressure (see Sec.         5 or 10 (see Sec.  173.34(e)(12)).   
                                 173.34(e)(13)).                                                                
3C............................  Retest not required.                       .....................................
3D............................  5/3 times service pressure...............  5.                                   
3E............................  Retest not required.                       .....................................
3HT...........................  5/3 times service pressure...............  3 (see Sec.  173.34(e)(15)).         
3T............................  5/3 times service pressure...............  5.                                   
4.............................  700 p.s.i................................  10.                                  
4A............................  5/3 times service pressure (see Sec.       5 or 10 (see Sec.  173.34(e)(12)).   
                                 173.34(e)(13)).                                                                
4AA480........................  2 times service pressure (see Sec.         5 or 10 (see Sec.  173.34(e)(14)).   
                                 173.34(e)(13)).                                                                
4B, 4BA, 4BW, 4B-240ET........  2 times service pressure, except non-      5, 10 or 12 (see Sec.  173.34        
                                 corrosive service (see Sec.                (e)(11), (e)(12) and (e)(19)).      
                                 173.34(e)(13)).                                                                
4C............................  Retest not required.                       .....................................
4D, 4DA, 4DS..................  2 times service pressure.................  5.                                   
DOT-4E........................  2 times service pressure, except non-      5.                                   
                                 corrosive service (see Sec.                                                    
                                 173.34(e)(13)).                                                                
4L............................  Retest not required.                       .....................................
8, 8AL........................  .........................................  10 or 20 (see Sec.  173.34(e)(18)).  
DOT-9.........................  400 p.s.i. (maximum 600 p.s.i.)..........  5.                                   
25............................  500 p.s.i................................  5.                                   
26 for filling at over 450      5/3 times service pressure...............  5.                                   
 p.s.i.                                                                                                         
26 for filling at 450 p.s.i.    2 times service pressure, except non-      5 or 10 (see Sec.  173.34(e)(11)).   
 and below.                      corrosive service (see Sec.                                                    
                                 173.34(e)(13)).                                                                
33............................  800 p.s.i................................  5.                                   
38............................  500 p.s.i................................  5.                                   
Exemption cylinder............  See current exemption....................  See current exemption.               
Foreign cylinder (see Sec.      As marked on the cylinder, but not less    5.                                   
 173.301(j) for restrictions     than 5/3 of any service or working                                             
 on use).                        pressure marking.                                                              
----------------------------------------------------------------------------------------------------------------
\1\ Any cylinder not exceeding two inches outside diameter and less than two feet in length is excepted from    
  hydrostatic retest.                                                                                           
\2\ A cylinder in chlorine or sulfur dioxide service made before April 20, 1915, must be retested at 500 psi.   
\3\ For cylinders not marked with a service pressure, see Sec.  173.301(e)(1).                                  

[[Page 402]]

                                                                                                                

    (1) General requirements. (i) Each cylinder bearing a DOT 
specification marking (including a cylinder remarked in conformance with 
Sec. 173.23) must be inspected, retested and marked in conformance with 
this section, at the frequency specified in the Retest and Inspection of 
Cylinders Table in this paragraph (e). Each cylinder bearing a DOT 
exemption number must be inspected, retested and marked in conformance 
with this section and the terms of the applicable exemption, at the 
frequency specified in the exemption.
    (ii) No cylinder required to be retested by paragraph (e)(1)(i) of 
this section may be charged or filled with a hazardous material and 
transported in commerce unless that cylinder has been inspected and 
retested in accordance with this section and the retester has marked the 
cylinder by stamping the date of retest, the cylinder retester 
identification number unless excepted under this section, and any other 
marking required by this section. No person may mark a test date or a 
retester identification number on a DOT specification or exemption 
cylinder unless all applicable requirements of this section have been 
met.
    (2) Retester authorization. (i) No person may mark a cylinder with a 
test date or retester identification number, or otherwise represent that 
a DOT specification or exemption cylinder has been retested under this 
section, unless that person holds a current retester identification 
number issued by the Associate Administrator for Hazardous Material 
Safety and operates in compliance with the terms of the retester 
identification number issuance letter. With the exception of visual 
inspections, all functions under this section must be performed or 
supervised by an individual named as qualified in the retester 
identification number application or a notification pursuant to 
paragraph (e)(2)(iv) of this section. A person is not required to obtain 
a retester identification number, if the person only performs visual 
inspections on DOT specification or exemption cylinders.
    (ii) Any person seeking approval as a cylinder retester shall 
arrange for an independent inspection agency, approved by the Associate 
Administrator for Hazardous Material Safety pursuant to Sec. 173.300a, 
to inspect its retest facility. The person seeking approval shall bear 
the cost of the inspection. Independent inspection agencies are not RSPA 
agents or representatives. A list of approved independent inspection 
agencies is available from the Associate Administrator for Hazardous 
Materials Safety, Office of Hazardous Materials Exemptions and Approvals 
(DHM-32), Research and Special Programs Administration, U.S. Department 
of Transportation, Washington, DC 20590-0001. Assistance in obtaining an 
approval may be requested from the same address.
    (A) After the inspection, the person seeking approval must submit a 
letter of recommendation and inspection report from the independent 
inspection agency and a completed request for approval to the Associate 
Administrator for Hazardous Materials Safety at the address listed in 
this paragraph (e)(2)(ii). An applicant must include the following 
information: company name; facility location; mailing address (if 
different from location of facility); business telephone number; name of 
facility manager; the DOT specification/exemption cylinders that will be 
tested at the facility; a certification that the facility will operate 
in compliance with the applicable requirements of this subchapter, the 
date and an authorized signature.
    (B) The Associate Administrator for Hazardous Materials Safety 
reviews the application, the inspection report and recommendation 
submitted by the independent inspection agency, and other available 
information. The Associate Administrator for Hazardous Materials Safety 
issues a retester identification number upon a finding that the 
applicant's facility and qualifications are adequate to properly 
inspect, test and mark cylinders under this section. Unless otherwise 
provided in the retester identification number issuance letter, a 
retester identification number expires five years from the date of 
issuance.
    (iii) An approved retester shall apply for retester identification 
number renewal in a timely manner. A new inspection report and 
recommendation of

[[Page 403]]

an independent inspection agency are required for each renewal. If the 
Associate Administrator for Hazardous Materials Safety receives a 
renewal application with the accompanying inspection report and 
recommendation at least 50 days before expiration of the retester 
identification number, the retester identification number remains in 
effect until the Associate Administrator for Hazardous Materials Safety 
issues a renewal or notifies the retester that its request for renewal 
of the retester identification number is denied. The Associate 
Administrator for Hazardous Materials Safety considers renewal of a 
retester identification number in accordance with the standard in 
paragraph (e)(2)(ii)(B) of this section.
    (iv) The retester identification number holder shall report in 
writing any change in its name, address, ownership, testing equipment, 
or management or personnel performing any function under this section, 
to the Associate Administrator for Hazardous Materials Safety (DHM-32) 
within 20 days of the change. A retester identification number remains 
valid only if the retester's facility and qualifications are maintained 
at or above the level observed at the time of inspection by the 
independent inspection agency.
    (v) A retester shall maintain, at each location at which it 
inspects, retests or marks cylinders under this section:
    (A) Current copies of those portions of this subchapter that apply 
to its cylinder inspection, retesting and marking activities at that 
location.
    (B) Current copies of all exemptions governing exemption cylinders 
inspected, retested or marked by the retester at that location.
    (C) Copies of each CGA pamphlet incorporated by reference in 
Sec. 171.7 of this subchapter that applies to the retester's cylinder 
inspection, retesting and marking activities at that location. The 
publication maintained must be the edition incorporated by reference in 
Sec. 171.7 of this subchapter.
    (3) Visual inspection. Except as otherwise provided in this section, 
each time a cylinder is retested, it must be visually inspected, 
internally and externally, in accordance with CGA Pamphlets C-6, C-6.1, 
C-6.2, or C-6.3, as applicable. The cylinder must be approved, rejected 
or condemned according to the criteria in the applicable CGA pamphlet. 
Internal inspection may be omitted for cylinders of the type and in the 
service described under paragraph (e)(13) of this section. DOT 3BN 
cylinders must be inspected in accordance with CGA Pamphlet C-6.
    (4) Pressure retest. (i) Unless otherwise provided, each cylinder 
required to be retested under this section must be retested by means 
suitable for measuring the expansion of the cylinder under pressure. 
Bands and other removable attachments must be loosened or removed before 
testing so that the cylinder is free to expand in all directions.
    (ii) The pressure-indicating device of the testing apparatus must 
permit reading of pressures to within 1% of the minimum prescribed test 
pressure of each cylinder tested, except that for an analog device, 
interpolation to \1/2\ of the marked gauge divisions is acceptable. The 
expansion-indicating device of the testing apparatus must also permit 
incremental reading of the cylinder expansion to 1% of the total 
expansion of each cylinder tested or 0.1 cubic centimeter, whichever is 
larger. Midpoint visual interpolation is permitted.
    (iii) Each day before retesting, the retester shall confirm, by 
using a calibrated cylinder or other method authorized in writing by the 
Associate Administrator for Hazardous Materials Safety that:
    (A) The pressure-indicating device, as part of the retest apparatus, 
is accurate within 1.0% of the prescribed test pressure of 
any cylinder tested that day. The pressure indicating device, itself, 
must be certified as having an accuracy of 0.5%, or better, 
of its full range, and must permit readings of pressure from 90%-110% of 
the minimum prescribed test pressure of the cylinder to be tested. The 
accuracy of the pressure indicating device within the test system can be 
demonstrated at any point within 500 psi of the actual test pressure for 
test pressures at or above 3000 psi, or 10% of the actual test pressure 
for test pressures below 3000 psi; and
    (B) The expansion-indicating device, as part of the retest 
apparatus, gives a

[[Page 404]]

stable reading of expansion and is accurate to 1.0% of the 
total expansion of any cylinder tested or 0.1 cubic centimeter, 
whichever is larger. The expansion-indicating device itself must have an 
accuracy of 0.5%, or better, of its full scale.
    (iv) The test equipment must be verified to be accurate within 
1.0% of the calibrated cylinder's pressure and corresponding 
expansion values. This may be accomplished by bringing the pressure to a 
value shown on the calibration certificate for the calibrated cylinder 
used and verifying that the resulting total expansion is within 
1.0% of the total expansion shown on the calibration 
certificate. Alternatively, calibration may be demonstrated by bringing 
the total expansion to a known value on the calibration certificate for 
the calibrated cylinder used and verifying that the resulting pressure 
is within 1.0% of the pressure shown on the calibration 
certificate. The calibrated cylinder must show no permanent expansion. 
The retester shall demonstrate calibration in conformance with this 
paragraph (e)(4) to an authorized inspector on any day that it retests 
cylinders. A retester shall maintain calibrated cylinder certificates in 
conformance with paragraph (e)(8)(iii) of this section.
    (v) Minimum test pressure must be maintained for at least 30 
seconds, and as long as necessary for complete expansion of the 
cylinder. A system check may be performed at or below 90% of test 
pressure prior to the retest. In the case of a malfunction of the test 
equipment, the test may be repeated at a pressure increased by 10 
percent or 100 psi, whichever is less. This paragraph (e)(4) does not 
authorize retest of a cylinder otherwise required to be condemned under 
paragraph (e)(6) of this section.
    (5) Cylinder rejection. (i) A retester shall reject a cylinder when 
on visual inspection, it meets a rejection standard in CGA Pamphlets C-
6, C-6.1, C-6.2, or C-6.3, as applicable.
    (ii) Except as provided in paragraph (e)(5)(iv) of this section, a 
cylinder that is rejected may not be marked as meeting the requirements 
of this section.
    (iii) When a cylinder is rejected, the retester shall notify the 
cylinder owner, in writing, that the cylinder has been rejected and, 
unless requalified as provided in paragraph (e)(5)(iv) of this section, 
may not be filled with a hazardous material for transportation in 
commerce where use of a specification packaging is required.
    (iv) A rejected cylinder with a service pressure of less than 900 
psig may be requalified and marked if the cylinder is repaired or 
rebuilt and subsequently reinspected and retested in conformance with--
    (A) CGA Pamphlets C-6, C-6.1, C-6.2, or C-6.3, as applicable;
    (B) Parts 173 and 178 of this subchapter;
    (C) Any exemption specific to that cylinder; and
    (D) Any approval required under paragraphs (i) and (l) of this 
section.
    (6) Cylinder condemnation. (i) A cylinder must be condemned when--
    (A) On inspection, it meets a condition for condemnation in CGA 
Pamphlets C-6, C-6.1, C-6.2, or C-6.3, as applicable;
    (B) The cylinder leaks through its wall;
    (C) Evidence of cracking exists to the extent that the cylinder is 
likely to be weakened appreciably;
    (D) For a DOT specification cylinder other than a DOT 4E aluminum 
cylinder, permanent expansion exceeds 10 percent of total expansion;
    (E) For a DOT 4E aluminum cylinder, permanent expansion exceeds 12 
percent of total expansion;
    (F) For a DOT exemption cylinder, permanent expansion exceeds the 
limit in the applicable exemption, or the cylinder meets another 
criterion for condemnation in the applicable exemption; or
    (G) For a DOT specification 3HT cylinder, elastic expansion exceeds 
the marked rejection elastic expansion.
    (ii) When a cylinder is required to be condemned, the retester shall 
stamp a series of X's over the DOT specification number and the marked 
service pressure or stamp ``CONDEMNED'' on the shoulder, top head, or 
neck using a steel stamp. Alternatively, at the direction of the owner, 
the retester may render the cylinder incapable of holding pressure.

[[Page 405]]

    (iii) When a cylinder is required to be condemned, the retester 
shall notify the cylinder owner, in writing, that the cylinder is 
condemned and may not be filled with hazardous material for 
transportation in commerce where use of a specification packaging is 
required.
    (iv) A cylinder that is condemned may not be filled with hazardous 
material for transportation in commerce where use of a specification 
packaging is required and may not be marked as meeting the requirements 
of this section or any DOT exemption. No person may remove or obliterate 
the ``CONDEMNED'' marking.
    (7) Retester markings. (i) Each cylinder passing retest must be 
marked with the retester's identification number set in a square 
pattern, between the month and year of the retest date, in characters 
not less than \1/8\-inch high. The first character of the retester 
identification number must appear in the upper left corner of the square 
pattern; the second in the upper right; the third in the lower right, 
and the fourth in the lower left. Example: A cylinder retested in May 
1994, and approved by a person who has been issued retester 
identification number ``A123'', would be marked plainly and permanently 
into the metal of the cylinder in accordance with location requirements 
of the cylinder specification or on a metal plate permanently secured to 
the cylinder in accordance with paragraph (c) of this section:
[GRAPHIC] [TIFF OMITTED] TR28MY96.000

    (ii) Markings of previous tests may not be obliterated. A cylinder 
that is subject to the requirements of paragraph (e) (10), (11) 
(modified hydrostatic test only), (13) or (14) of this section is not 
required to be marked with a retester identification number. A cylinder 
requalified by the modified hydrostatic test method or external 
inspection must be marked after a retest or an inspection by stamping 
the date of retest or reinspection on the cylinder followed by the 
symbol ``E'' (external inspection) or ``S'' (modified hydrostatic test 
method) as appropriate. However, a cylinder subject to the requirements 
of Sec. 173.301(j) may not be marked with a retester identification 
number. Variation from the marking requirement may be approved on 
written request to the Associate Administrator for Hazardous Materials 
Safety.
    (8) Recordkeeping. A retester shall maintain the following records 
at the retesting location, on paper or in a form from which a paper copy 
can be produced on request.
    (i) Records of authority to inspect, retest and mark must be 
maintained, as follows:
    (A) Current retester identification number issuance letter;
    (B) If the retester identification number has expired and renewal is 
pending, a copy of the renewal request; and
    (C) Copies of notifications to Associate Administrator for Hazardous 
Materials Safety required under paragraph (e)(2)(iv) of this section.
    (ii) Daily records of visual inspection and hydrostatic retest must 
be maintained until either the expiration of the retest period or until 
the cylinder is again reinspected or retested, whichever occurs first. A 
single date may be used for each retest sheet, provided each retest on 
the sheet was conducted on that date. Ditto marks or a solid vertical 
line may be used to indicate repetition of the preceding entry for the 
following entries: date; actual dimensions or a symbol; if present, 
manufacturer's name or symbol; if present, owner's name or symbol and 
retest operator. Blank spaces may not be used to indicate repetition of 
a prior entry. Records must include--
    (A) For each test to demonstrate calibration, the date; serial 
number of the calibrated cylinder; calibration test pressure; total, 
elastic and permanent expansions; and legible identification of retest 
operator. The retest operator must be able to demonstrate that the 
results of the daily calibration verification correspond to the 
hydrostatic retests that were performed on that day. The daily 
verification of calibration(s) may be recorded on the same sheets as, 
and with, retest records for that date;
    (B) For each cylinder retested or visually inspected, records 
containing the

[[Page 406]]

date; serial number; ICC/DOT specification or exemption number; service 
pressure; actual dimensions or a symbol; if present, manufacturer's name 
or symbol; if present, owner's name or symbol; result of visual 
inspection; actual test pressure; total, elastic and permanent 
expansions; percent permanent expansion; disposition, with reason for 
any repeated retest, rejection or condemnation; and legible 
identification of test operator. For each cylinder marked pursuant to 
Sec. 173.302(c)(5), the retest sheet must indicate the method by which 
any average or maximum wall stress was computed. Records must be kept 
for all completed retests, as well as unsuccessful retests under 
paragraph (e)(4)(v) of this section. The entry for a later retest under 
paragraph (e)(4)(v) of this section after a failure to hold test 
pressure, or retest of a cylinder requalified after rejection, must 
indicate the date of the earlier inspection or retest; and
    (C) Calculations of average and maximum wall stress pursuant to 
Sec. 173.302(c)(3), if performed.
    (iii) The most recent certificate of calibration must be maintained 
for each calibrated cylinder used by the retester.
    (9) DOT 4-series cylinders. A DOT 4-series cylinder, except 4L 
cylinders, that at any time shows evidence of a leak or of internal or 
external corrosion, denting, bulging or rough usage to the extent that 
it is likely to be weakened appreciably; or that has lost five percent 
or more of its official tare weight must be retested before being 
recharged and shipped. (Refer to CGA Pamphlet C-6 or C-6.3, as 
applicable, regarding cylinder weakening.) After retest, the actual tare 
weight must be recorded as the new tare weight.
    (10) Cylinders 12 pounds or less with service pressures of 300 psi 
or less. A cylinder of 12 pounds or less water capacity authorized for 
service pressure of 300 psi or less must be given a complete external 
visual inspection at the time periodic retest becomes due. External 
visual inspection must be in accordance with CGA Pamphlet C-6 or C-6.3. 
The cylinder may be hydrostatically retested without a water jacket and 
without determining total and permanent expansions. The retest is 
successful if the cylinder, when examined under test pressure, does not 
display a defect described in paragraph (e)(6)(i) (B) or (C) of this 
section.
    (11) Modified hydrostatic retest. A cylinder made in compliance with 
specification DOT 4B, DOT 4BA, DOT 4BW, DOT 4E or ICC-26-300 
2 (Secs. 178.50, 178.51, 178.61, 178.68 of this subchapter) 
that is used exclusively for anhydrous dimethylamine; anhydrous 
methylamine; anhydrous trimethylamine; methyl chloride; liquefied 
petroleum gas; methylacetylene-propadiene stabilized; or 
dichlorodifluoromethane, difluoroethane, difluorochloroethane, 
chlorodifluoromethane, chlorotetrafluoroethane, trifluorochloroethylene, 
or mixture thereof, or mixtures of one or more with 
trichlorofluoromethane; and that is commercially free from corroding 
components and protected externally by a suitable corrosion-resistant 
coating (such as galvanizing or painting) may be given a hydrostatic 
retest every 12 years instead of every five years. Alternatively, the 
cylinder may be subjected to internal hydrostatic pressure of at least 
two times the marked service pressure without determination of 
expansions, but this latter type of test must be repeated every seven 
years after expiration of the first 12-year period. When subjected to 
the latter test, the cylinder must be carefully examined under test 
pressure and removed from service if a leak or other harmful defect 
exists. A cylinder requalified by the modified hydrostatic test method 
must be marked after a retest or an inspection by stamping the date of 
retest or reinspection on the cylinder followed by a ``S''.
---------------------------------------------------------------------------

    \2\ For filling at 450 p.s.i. and below. Use of existing cylinders 
authorized; new construction not authorized.
---------------------------------------------------------------------------

    (12) A cylinder made in conformance with specification DOT-3A, DOT-
3AA, DOT-3B, DOT-4BA or DOT-4BW (Secs. 178.36, 178.37, 178.38, 178.51, 
178.61 of this subchapter) having a service pressure of 300 psi or less 
that is used exclusively for methyl bromide, liquid; mixtures of methyl 
bromide and ethylene dibromide, liquid; mixtures of methyl bromide and 
chlorpicrin, liquid;

[[Page 407]]

mixtures of methyl bromide and petroleum solvents, liquid; or methyl 
bromide and nonflammable, nonliquefied compressed gas mixtures, liquid; 
that is commercially free of corroding components, and that is protected 
externally by a suitable corrosion resistant coating (such as 
galvanizing or painting) and internally by a suitable corrosion 
resistant lining (such as galvanizing) may be tested every 10 years 
instead of every five years, provided that a visual internal and 
external examination of the cylinder is conducted every five years in 
accordance with CGA Pamphlet C-6. The cylinder must be examined at each 
filling, and rejected if a dent, corroded area, leak or other condition 
indicates possible weakness.
    (13) A cylinder made in conformance with a specification listed in 
the table in this paragraph (e)(13) and used exclusively in the service 
indicated may, instead of a periodic hydrostatic retest, be given a 
complete external visual inspection at the time periodic retest becomes 
due. External visual inspection must be in accordance with CGA Pamphlet 
C-6 or C-6.3. When this inspection is used instead of hydrostatic 
retesting, subsequent inspections are required at five-year intervals 
after the first inspection. Inspections must be made only by competent 
persons and the results recorded and maintained in accordance with 
paragraph (e)(8) of this section. Records shall include: date of 
inspection (month and year); DOT specification number; cylinder 
identification (registered symbol and serial number, date of 
manufacture, and owner); type of cylinder protective coating (including 
statement as to need of refinishing or recoating); conditions checked 
(e.g., leakage, corrosion, gouges, dents or digs in shell or heads, 
broken or damaged footring or protective ring or fire damage); 
disposition of cylinder (returned to service, returned to cylinder 
manufacturer for repairs or scrapped). A cylinder that passes inspection 
shall be marked with the date in accordance with paragraph (e)(7) of 
this section. An ``E'' after the date indicates requalification by the 
external inspection method. Specification cylinders must be in exclusive 
service as follows:

                                                                        
------------------------------------------------------------------------
  Cylinders made in compliance with--         Used exclusively for--    
------------------------------------------------------------------------
DOT-4, DOT-3A, DOT-3AA, DOT-3A480X, DOT-  Anhydrous ammonia of at least 
 4A, DOT-4AA480..                         99.95% purity.                
DOT-3A, DOT-3AA, DOT-3A480X, DOT-3B,     Butadiene, inhibited, which is 
 DOT-4B, DOT-4BA, DOT-4BW, ICC-26-        commercially free from        
 240,\1\ ICC-26-300\1\.                   corroding components.         
DOT-3A, DOT-3A480X, DOT-3AA, DOT-3B,     Cyclopropane which is          
 DOT-4A, DOT-4AA480, DOT-4B, DOT-4BA,     commercially free from        
 DOT-4BW.                                 corroding components.         
DOT-3A, DOT-3AA, DOT-3A480X, DOT-4B,     Fluorinated hydrocarbons and   
 DOT-4BA, DOT-4BW, DOT-4E.                mixtures thereof which are    
                                          commercially free from        
                                          corroding components.         
DOT-3A, DOT-3AA, DOT-3A480X, DOT-3B,     Liquefied hydrocarbon gas which
 DOT-4B, DOT-4BA, DOT-4BW, DOT-4E, ICC-   is commercially free from     
 26-240,1 ICC-26-3001.                    corroding components.         
DOT-3A, DOT-3AA, DOT-3A480X, DOT-3B,     Liquefied petroleum gas which  
 DOT-4B, DOT-4BA, DOT-4BW, DOT-4E, ICC-   is commercially free from     
 26-2401, ICC-26-3001.                    corroding components.         
DOT-3A, DOT-3AA, DOT-3B, DOT-4B, DOT-    Methylacetylene-propadiene,    
 4BA, DOT-4BW, DOT-4E.                    stabilized, which is          
                                          commercially free from        
                                          corroding components.         
DOT-3A, DOT-3AA, DOT-3B, DOT-4B, DOT-    Anhydrous mono, di,            
 4BA, DOT-4BW.                            trimethylamines which are     
                                          commercially free from        
                                          corroding components.         
DOT-4B240, DOT-4BW240..................  Ethyleneimine, inhibited.      
------------------------------------------------------------------------
\1\ Use of existing cylinders authorized; new construction not          
  authorized.                                                           

    (14) Cylinders containing anhydrous ammonia. A cylinder made in 
compliance with specification DOT-3A, DOT-3A 480X, or DOT-4AA480 used 
exclusively for anhydrous ammonia, commercially free from corroding 
components, and protected externally by a suitable corrosion-resistant 
coating (such as painting) may be retested every 10 years instead of 
every five years.
    (15) 3HT cylinders. (i) In addition to the other requirements of 
this section, a cylinder marked DOT-3HT must be requalified in 
accordance with CGA Pamphlet C-8.
    (ii) The cylinder must be condemned:
    (A) If elastic expansion exceeds the marked rejection elastic 
expansion. A cylinder made before January 17, 1978, and not marked with 
a rejection elastic expansion in cubic centimeters near

[[Page 408]]

the marked original elastic expansion must be so marked before the next 
retest date. The rejection elastic expansion for a cylinder is 1.05 
times its original elastic expansion.
    (B) If there is evidence of denting or bulging.
    (C) Twenty-four years after the date of the original test or after 
4,380 pressurizations, whichever occurs first. If a cylinder is 
recharged, on average, more than once every other day, an accurate 
record of the number of rechargings must be maintained by the cylinder 
owner or his/her agent.
    (iii) The retest date and retester identification number must be 
applied by low-stress steel stamp to a depth no greater than that of the 
marking at the time of manufacture. Stamping on the sidewall is not 
authorized.
    (16) DOT-3A or 3AA cylinders. (i) A cylinder made in conformance 
with specification DOT-3A or 3AA with a water capacity of 125 pounds or 
less that is removed from any cluster, bank, group, rack or vehicle each 
time it is filled, may be retested every ten years instead of every five 
years, provided the cylinder complies with all of the following--
    (A) The cylinder was manufactured after December 31, 1945;
    (B) The cylinder is used exclusively for air, argon, cyclopropane, 
ethylene, helium, hydrogen, krypton, neon, nitrogen, nitrous oxide, 
oxygen, sulfur hexafluoride, xenon, permitted mixtures of these gases 
(see Sec. 173.301(a)) and permitted mixtures of these gases with up to 
30 percent by volume of carbon dioxide, provided that the gas has a dew 
point at or below minus 52 deg. F at 1 atmosphere;
    (C) Before each refill, the cylinder passes the hammer test 
specified in CGA Pamphlet C-6;
    (D) The cylinder is dried immediately after hydrostatic testing to 
remove all traces of free water;
    (E) The cylinder is not used for underwater breathing; and
    (F) Each cylinder is stamped with a five-point star at least one-
fourth of an inch high immediately following the test date.
    (ii) If, since the last required hydrostatic retest, a cylinder has 
not been used exclusively as specified in paragraph (e)(16)(i)(B) of 
this section, but currently conforms with all other provisions of 
paragraph (e)(16)(i) of this section, it may be retested every 10 years 
instead of every five years, provided it is first retested and examined 
as prescribed by Sec. 173.302(c)(2), (3) and (4).
    (iii) Except as specified in paragraph (e)(16)(ii) of this section, 
if a cylinder marked with a star is charged with a compressed gas other 
than as specified in this paragraph (e)(16), the star following the most 
recent test date must be obliterated. The cylinder must be retested five 
years from the marked retest date, or prior to the first charging with a 
compressed gas, if the required five-year retest period has passed.
    (17) Cylinders containing corrosive materials. (i) A cylinder that 
previously contained a Class 8 (corrosive) material may not be used to 
transport a compressed gas in commerce unless the following requirements 
are met--
    (A) The cylinder is visually inspected, internally and externally, 
in accordance with CGA Pamphlet C-6;
    (B) Regardless of the date of previous retest, the cylinder is 
subjected to and passes inspection and hydrostatic retest in accordance 
with this section; and
    (C) The record prescribed in paragraph (e)(8) of this section 
includes: the month and year of inspection and test; the cylinder 
identification (including ICC or DOT specification number, registered 
symbol, serial number, date of manufacture and owner); the conditions 
checked (e.g., leakage, corrosion, gouges, dents, or digs in shell or 
heads, broken or damaged footrings, fire damage) and the disposition of 
the cylinder (returned to service, returned to the manufacturer for 
repairs, or scrapped).
    (ii) A cylinder requalified for compressed gas service in accordance 
with this paragraph (e)(17) may have its next retest and inspection 
scheduled from the date of the inspection and retest prescribed in this 
paragraph (e). If decontamination cannot remove all significant residue 
or impregnation by the Class 8 material, the cylinder may not be used to 
transport compressed gas in commerce.

[[Page 409]]

    (18) DOT 8 and 8AL cylinders. (i) Each owner of a DOT 8 or 8AL 
cylinder used to transport acetylene must have the cylinder shell and 
the porous filler requalified in accordance with CGA Pamphlet C-13. 
Requalification must be performed in accordance with the following 
schedule:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                         Shell (visual inspection)             Porous filler requalification    
                                              requalification            ---------------------------------------
  Date of cylinder manufacture   ----------------------------------------                                       
                                        Initial            Subsequent           Initial            Subsequent   
----------------------------------------------------------------------------------------------------------------
Before January 1, 1991..........  Before January 1,    10 yrs...........  Before January 1,    Not required.    
                                   2001.                                   2011.                                
On or after January 1, 1991.....  10 yrs \1\.........  10 yrs...........  3 to 30 yrs \2\....  Not required.    
----------------------------------------------------------------------------------------------------------------
\1\ Years from date of cylinder manufacture.                                                                    
\2\ For a cylinder manufactured on or after January 1, 1991, requalification of the porous filler must be       
  performed no sooner than 3 years, and no later than 20 years, from the date of manufacture.                   

    (ii) Unless requalified and marked in accordance with CGA Pamphlet 
C-13 before October 1, 1994, an acetylene cylinder must be requalified 
by a person who holds a valid retester identification number. Each 
cylinder successfully passing a shell or filler requalification must be 
marked with the retester's identification number in accordance with 
paragraph (e)(7) of this section. In addition, the cylinder must be 
marked to identify the type of requalification performed in accordance 
with paragraph 5.6 of CGA Pamphlet C-13. For example, the letter ``S'' 
must be used for a shell requalification and the letter ``F'' for a 
porous filler requalification.
    (iii) If a cylinder valve is replaced, a cylinder valve of the same 
weight must be used or the tare weight of the cylinder must be adjusted 
to compensate for valve weight differential.
    (19) Cylinders used as fire extinguishers. Only DOT specification 
cylinders used as fire extinguishers and meeting Special Provision 18 in 
Sec. 172.102(c)(1) of this subchapter may be retested in accordance with 
this paragraph (e)(19).
    (i) A DOT specification 4B, 4BA, 4B240ET or 4BW (Secs. 178.50, 
178.51, 178.55 and 178.61 of this subchapter) cylinder may be retested 
as follows:
    (A) For a cylinder with a water capacity of 12 pounds or less by 
hydrostatic test using the water jacket method or by hydrostatic test 
without determination of expansion (modified hydrostatic test method). A 
retest must be performed 12 years after the original test date and at 
12-year intervals thereafter.
    (B) For a cylinder having a water capacity over 12 pounds--
    (1) By hydrostatic test without determination of expansion (modified 
hydrostatic test method). A retest must be performed 12 years after the 
original test date and at 7-year intervals; or
    (2) By hydrostatic test using the water jacket method. A retest must 
be performed 12 years after the original test date and at 12-year 
intervals thereafter.
    (ii) A DOT specification 3A, 3AA, or 3AL (Secs. 178.36, 178.37 and 
178.46 of this subchapter) cylinder may be retested by hydrostatic test 
using the water jacket method. A retest must be performed 12 years after 
the original test date and at 12-year intervals thereafter.
    (f) Cylinders subjected to the action of fire. A cylinder which has 
been subjected to the action of fire must not again be placed in service 
until it has been properly reconditioned as follows:
    (1) A cylinder made of plain carbon steel with not over 0.25 percent 
carbon nor over 0.90 manganese need not be reheat-treated but must pass 
the periodic retest requirements as specified in paragraph (e) of this 
section.
    (2) DOT 8 and 8AL cylinders made entirely of carbon steel with 0.25 
percent or less carbon and with 0.90 percent or less manganese, must be 
reinspected to determine the condition of the cylinder and the porous 
filler, as prescribed in CGA Pamphlet C-13. If the cylinder has been 
damaged, the porous filler must be removed and the cylinder must be heat 
treated and retested. The porous filler must be replaced in accordance 
with the specification to which the cylinder was made. A cylinder may be 
returned to service without reheat treatment or retest if the cylinder 
has no

[[Page 410]]

fire or mechanical damage and the porous filler is unchanged and intact.
    (3) The inner cylinders made under specification DOT-4L (Sec. 178.57 
of this chapter) may be used after again passing the original 
hydrostatic test.
    (4) DOT 3AL and DOT 4E aluminum cylinders may not be reheat treated 
and must be removed from service.
    (5) Other cylinders must be reheat treated and reconditioned as 
specified in paragraph (g) of this section.
    (g) Reheat treatment. (1) Previous to the reheat treatment procedure 
hereinafter prescribed, each cylinder must be subjected to a careful 
internal and external inspection.
    (2) Cylinders must be segregated for reheat treatment in lots of 100 
or less cylinders of the same general size having practically the same 
chemical composition.
    (3) The reheat treatment operation must be carried out, supervised, 
and reported as prescribed for the heat treatment in the specification 
covering the manufacture of the cylinder in question. Data from the 
original reports of manufacture of the cylinders must be available.
    (4) The reheat treatment must be followed by hydrostatic retest, 
such retest to be carried out, supervised, and reported as prescribed 
for the hydrostatic tests in the specification covering the manufacture 
of the cylinder in question. The results of the retest must meet either 
of the following conditions:
    (i) The permanent expansion shall be from zero to 10 percent of the 
total expansion in the hydrostatic retest and one cylinder from each lot 
shall pass the requirements of the flattening and physical tests 
prescribed. Failure to pass the flattening or physical tests will reject 
the lot or;
    (ii) The permanent expansion shall not be less than 3 percent nor 
more than 10 percent of the total expansion in the hydrostatic retest, 
in which case the flattening and physical tests are not required. For 
this alternative method the hydrostatic retest pressure may not exceed 
115 percent of the minimum prescribed test pressure.
    (h) Repair by welding or brazing of specifications DOT-3A, 3AA, 3B, 
3C cylinders. Repair of specifications DOT-3A, 3AA, 3B or 3C 
(Secs. 178.36(e), 178.37(e), 178.38(e), and 178.40(e) of this 
subchapter) cylinders by welding or brazing authorized, but only for the 
removal and replacement of neckrings and footrings attached to cylinders 
originally manufactured to conform to Secs. 178.36-9(a), 178.37-9(a), 
178.38-9(a), and 178.40-9(a) of this subchapter. Removal and replacement 
must be done by a regular manufacturer of this type of cylinder. After 
removal and before replacement of such parts, cylinders must be 
inspected, and defective ones rejected. Cylinders, neckrings, footrings, 
and method of replacement must conform to Sec. 178.36(e), 178.37(e), 
178.38(e), or 178.40(e) of this subchapter whichever applies. 
Replacement must be followed by reheat treating, testing, inspection, 
and supervised and reported as prescribed by the specification covering 
their original manufacture. Inspector's reports must conform with that 
required by the specification covering original manufacture with the 
word ``repaired'' substituted for ``manufactured.'' Show original 
markings and the new additional markings added, and statement: 
``Cylinders were carefully inspected for defects after removal of 
neckrings and footrings and after replacement, which replacement was 
made by process of -------------------- (Welding-brazing).''
    (i) Repair by welding or brazing of DOT-4 series and DOT-8, welded 
or brazed cylinders. Repairs on DOT-4 series and DOT-8 series welded or 
brazed cylinders are authorized to be made by welding or brazing. Such 
repairs must be made by a manufacturer of these types of DOT cylinders 
or by a repair facility approved by the Associate Administrator for 
Hazardous Materials Safety and by a process similar to that used in its 
manufacture and under the following specific requirements:
    (1) Cylinders with injurious defects in welded joints in or on 
pressure parts must be repaired by completely removing the defect prior 
to rewelding.
    (2) Cylinders with injurious defects in brazed joints in or on 
pressure parts must be repaired by rebrazing.
    (3) Cylinders during welding must be free of materials in contact 
with the welded joint that may impair the serviceability of the metal in 
or adjacent

[[Page 411]]

to the weld. (Precautions must be taken to prevent acetylene cylinder 
steels from picking up carbon during repair.)
    (4) Neckrings, footrings, or other nonpressure attachments 
authorized by the specification may be replaced or repaired. Repair or 
replacement of footrings, neckrings, or other nonpressure attachments 
authorized by the specification for DOT-4BA and 8AL (Secs. 178.51 and 
178.60 of this subchapter) cylinders may be made without conforming to 
the requirements of paragraph (i)(6) of this section provided the 
following requirements are met:
    (i) Must be done by a manufacturer of these types of DOT cylinders 
or by a repair facility approved by the Associate Administrator for 
Hazardous Materials Safety.
    (ii) The welder shall have available to him information as to the 
procedure equipment, and rod used during manufacture and shall use a 
similar method for repair.
    (iii) Repairs must be by metal arc welding only. Welds shall be 3 
inches maximum length and spaced at least 3 inches apart.
    (iv) Welds shall not be made on or near a brazed joint (to prevent 
the possibility of copper penetration).
    (v) After repair the welds are to be inspected visually for weld 
quality.
    (vi) After repair the weld area is to be leak tested at the service 
pressure of the cylinder.
    (5) After removal, and before replacement of attachments, cylinders 
must be inspected and defective ones rejected, repaired or rebuilt.
    (6) After repair, cylinders must be reheat-treated, tested, 
inspected and reported when and as prescribed by the specification 
covering their original manufacture when welding or brazing seams in a 
pressure part of a cylinder; or when welding or brazing on pressure 
parts of cylinders of plain carbon steels with carbon over 0.25 percent 
or manganese over 1.00 percent or of alloy steels except as provided in 
Sec. 173.34(i)(7).

    Note 1: Heat-treatment is not required after welding or brazing 
weldable low carbon parts to attachments of similar material which has 
been previously welded or brazed to the top or bottom of cylinders and 
properly heat-treated, provided such subsequent welding or brazing does 
not produce a temperature in excess of 400 deg. F. in any part of the 
top or bottom material.

    (7) Repair of cylinders must be followed by a proof pressure leakage 
test at prescribed test pressure and visual examination for weld quality 
when welding on pressure parts of cylinders of plain carbon 0.25 percent 
or less and manganese 1.00 percent or less, or when repairing steel 
types 1315, NAX and GLX by the following procedure:
    (i) Leakage through the welding metal may be repaired without 
subsequent reheat treatment of the cylinder.
    (ii) Repair permitted only by either the metal arc or tungsten inert 
gas shielded arc process. E7015, 7016, or 7018 electrodes not larger 
than \1/8\ inch diameter shall be used for the metal arc process.
    (iii) Weld defects must be removed by grinding or chipping before 
repair by the metal arc process. The tungsten inert gas shielded arc 
process may be used for repair only when such repair can be made by 
puddling. Repair weld shall not exceed 1 inch in length nor be closer 
than 3 inches to the next repair area.
    (iv) Repair of weld defects which have any cracking is not 
permitted.
    (j) Repair of non-pressure attachments. Repair of non-pressure 
attachments by welding or brazing without affecting a pressure part of 
the cylinder must be followed by visual examination for weld quality.
    (k) Prohibited repairs. Walls, heads or bottoms of cylinders with 
injurious defects or leaks in base metal shall not be repaired, but may 
be replaced as provided for in paragraph (l) of this section.
    (l) Rebuilding of DOT-4 series and DOT-8, welded or brazed 
cylinders. Rebuilding of DOT-4 series and DOT-8 series, welded or brazed 
cylinders is authorized. Such rebuilding must be done by a manufacturer 
of these types of DOT cylinders or by a repair facility approved by the 
Associate Administrator for Hazardous Materials Safety and by a process 
similar to that used in its original manufacture and under the following 
specific requirements:
    (1) The replacement of a pressure part such as wall, heads, or 
bottoms of

[[Page 412]]

cylinders or the replacement of the porous filling material, shall be 
considered as rebuilding.
    (2) Rebuilt cylinders shall be considered as new cylinders and shall 
conform to all the requirements of the specifications applying, 
including verification of material, examination, inspection, etc., and 
the rendering of the proper reports to the purchaser, cylinder 
rebuilder, and the Associate Administrator for Hazardous Materials 
Safety. Report must show that cylinders were rebuilt.
    (3) Information in sufficient detail regarding previous serial 
numbers and identification symbols must be filed with the Associate 
Administrator for Hazardous Materials Safety.

(Approved by the Office of Management and Budget under control number 
2137-0022)

[29 FR 18671, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.34, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.35  Hazardous materials in intermediate bulk containers.

    (a) No person may offer or accept a hazardous material for 
transportation in an intermediate bulk container except as authorized by 
this subchapter. Each intermediate bulk container used for the 
transportation of hazardous materials must conform to the requirements 
of its specification and regulations for the transportation of the 
particular commodity. A specification intermediate bulk container, for 
which the prescribed periodic retest or inspection under subpart D of 
part 180 of this subchapter is past due, may not be filled and offered 
for transportation until the retest or inspection have been successfully 
completed. This requirement does not apply to any intermediate bulk 
container filled prior to the retest or inspection due date.
    (b) Before being filled and offered for transportation, each 
intermediate bulk container and its service equipment must be visually 
inspected to ensure that it is free from corrosion, contamination, 
cracks, or other damage which would render the intermediate bulk 
container unsafe for transportation. No rigid plastic or composite 
intermediate bulk container with repaired bodies may be reused; however, 
plastic components, such as closures, valves, or legs, may be replaced. 
Fiberboard, wooden, or flexible intermediate bulk containers may not be 
reused.
    (c) A metal intermediate bulk container, or a part thereof, subject 
to thinning by mechanical abrasion or corrosion due to the lading, must 
be protected by providing a suitable increase in thickness of material, 
a lining or some other suitable method of protection. Increased 
thickness for corrosion or abrasion protection must be added to the wall 
thickness specified in Sec. 178.705(c)(1)(iv) of this subchapter.
    (d) Notwithstanding requirements in Sec. 173.24b of this subpart, 
when filling an intermediate bulk container with liquids, sufficient 
ullage must be left to ensure that, at the mean bulk temperature of 50 
deg.C (122  deg.F), the intermediate bulk container is not filled to 
more than 98 percent of its water capacity.
    (e) Where two or more closure systems are fitted in series, the 
system nearest to the hazardous material being carried must be closed 
first.
    (f) During transportation--
    (1) No hazardous material may remain on the outside of the 
intermediate bulk container; and
    (2) Each intermediate bulk container must be securely fastened to or 
contained within the transport unit.
    (g) Each intermediate bulk container used for transportation of 
solids which may become liquid at temperatures likely to be encountered 
during transportation must also be capable of containing the substance 
in the liquid state.
    (h) Liquid hazardous materials may only be offered for 
transportation in a metal, rigid plastic, or composite intermediate bulk 
container that is appropriately resistant to an increase of internal 
pressure likely to develop during transportation.
    (1) A rigid plastic or composite intermediate bulk container may 
only be filled with a liquid having a vapor pressure less than or equal 
to the greater of the following two values: the first value is 
determined from any of the methods in paragraphs (h)(1) (i), (ii) or 
(iii) of this section. The second value is

[[Page 413]]

determined by the method in paragraph (h)(1)(iv) of this section.
    (i) The gauge pressure (pressure in the intermediate bulk container 
above ambient atmospheric pressure) measured in the intermediate bulk 
container at 55  deg.C (131  deg.F). This gauge pressure must not exceed 
two-thirds of the marked test pressure and must be determined after the 
intermediate bulk container was filled and closed at 15  deg.C (60 
deg.F) to less than or equal to 98 percent of its capacity.
    (ii) The absolute pressure (vapor pressure of the hazardous material 
plus atmospheric pressure) in the intermediate bulk container at 50 
deg.C (122  deg.F). This absolute pressure must not exceed four-sevenths 
of the sum of the marked test pressure and 100 kPa (14.5 psi).
    (iii) The absolute pressure (vapor pressure of the hazardous 
material plus atmospheric pressure) in the intermediate bulk container 
at 55  deg.C (131  deg.F). This absolute pressure must not exceed two-
thirds of the sum of the marked test pressure and 100 kPa (14.5 psi).
    (iv) Twice the static pressure of the substance, measured at the 
bottom of the intermediate bulk container. This value must not be less 
than twice the static pressure of water.
    (2) Gauge pressure (pressure in the intermediate bulk container 
above ambient atmospheric pressure) in metal intermediate bulk 
containers must not exceed 110 kPa (16 psig) at 50  deg.C (122  deg.F) 
or 130 kPa (18.9 psig) at 55  deg.C (131  deg.F).
    (i) The requirements in this section do not apply to DOT-56 or -57 
portable tanks.
    (j) No intermediate bulk container may be filled with a Packing 
Group I liquid. Rigid plastic, composite, flexible, wooden or fiberboard 
intermediate bulk containers used to transport Packing Group I solid 
materials may not exceed 1.5 cubic meters (53 cubic feet) capacity. For 
Packing Group I solids, a metal intermediate bulk container may not 
exceed 3 cubic meters (106 cubic feet) capacity.
    (k) When an intermediate bulk container is used for the 
transportation of liquids with a flashpoint of 60.5  deg.C (141  deg.F) 
(closed cup) or lower, or powders with the potential for dust explosion, 
measures must be taken during product loading and unloading to prevent a 
dangerous electrostatic discharge.
    (l) Intermediate bulk container filling limits.
    (1) Except as provided in this section, an intermediate bulk 
container may not be filled with a hazardous material in excess of the 
maximum gross mass marked on that container.
    (2) An intermediate bulk container which is tested and marked for 
Packing Group II liquid materials may be filled with a Packing Group III 
liquid material to a gross mass not exceeding 1.5 times the maximum 
gross mass marked on that container, if all the performance criteria can 
still be met at the higher gross mass.
    (3) An intermediate bulk container which is tested and marked for 
liquid hazardous materials may be filled with a solid hazardous material 
to a gross mass not exceeding the maximum gross mass marked on that 
container. In addition, an intermediate bulk container intended for the 
transport of liquids which is tested and marked for Packing Group II 
liquid materials may be filled with a Packing Group III solid hazardous 
material to a gross mass not exceeding the marked maximum gross mass 
multiplied by 1.5 if all the performance criteria can still be met at 
the higher gross mass.
    (4) An intermediate bulk container which is tested and marked for 
Packing Group I solid materials may be filled with a Packing Group II 
solid material to a gross mass not exceeding the maximum gross mass 
marked on that container, multiplied by 1.5, if all the performance 
criteria can be met at the higher gross mass; or a Packing Group III 
solid material to a gross mass not exceeding the maximum gross mass 
marked on the intermediate bulk container, multiplied by 2.25, if all 
the performance criteria can be met at the higher gross mass. An 
intermediate bulk container which is tested and marked for Packing Group 
II solid materials may be filled with a Packing Group III solid material 
to a gross mass not exceeding the maximum gross

[[Page 414]]

mass marked on the intermediate bulk container, multiplied by 1.5.
[Amdt. 173-238, 59 FR 38064, July 26, 1994, as amended by Amdt. 173-243, 
60 FR 40038, Aug. 4, 1995]



Sec. 173.40  General packaging requirements for poisonous materials required to be packaged in cylinders.

    When this section is referenced in the packaging section for a 
hazardous material elsewhere in this part, the following requirements 
are applicable to cylinders used for that material:
    (a) Authorized cylinders. A cylinder must conform to one of the 
specifications for cylinders in subpart C of part 178 of this 
subchapter, except that Specification 8, 8AL and 39 cylinders are not 
authorized.
    (b) Outage and pressure requirements. The pressure of the hazardous 
material at 55  deg.C (131  deg.F) must not exceed the service pressure 
of the cylinder. Sufficient outage shall be provided so that the 
cylinder will not be liquid full at 55  deg.C (131  deg.F).
    (c) Closures. Each cylinder must be closed with a plug or valve 
conforming to the following:
    (1) Each plug or valve must have a taper-threaded connection 
directly to the cylinder and be capable of withstanding the test 
pressure of the cylinder;
    (2) Each valve must be of the packless type with non-perforated 
diaphragm, except that for corrosive materials, a valve may be of the 
packed type provided the assembly is made gas-tight by means of a seal 
cap with gasketed joint attached to the valve body or the cylinder to 
prevent loss of material through or past the packing;
    (3) Each valve outlet must be sealed by a threaded cap or threaded 
solid plug, and
    (4) Cylinder, valves, plugs, outlet caps, luting and gaskets must be 
compatible with each other and with the lading.
    (d) Additional protection. Additional protection requirements for 
thin-walled cylinders and for cylinders equipped with valves are as 
follows:
    (1) Each cylinder which has a wall thickness at any point of less 
than 2.03 mm (0.080 inch) and each cylinder which does not have fitted 
valve protection must be overpacked in a 4Cl, 4D, 4F, 4G, 4Hl or 4H2 
box. The box must conform to overpack provisions in Sec. 173.25. Box and 
valve protection must be of sufficient strength to protect all parts of 
the cylinder and valve, if any, from deformation and breakage resulting 
from a drop of 2.0 m (7 ft) or more onto a concrete floor, impacting at 
an orientation most likely to cause damage.
    (2) Each cylinder equipped with a valve, if not overpacked in a box 
in accordance with paragraph (d)(1) of this section, must be equipped 
with a protective cap or other means of valve protection sufficient to 
protect the valve from deformation and breakage resulting from a drop of 
2.0 m (7 ft) or more onto a concrete floor, impacting at an orientation 
most likely to cause damage.
    (e) Interconnection. Cylinders may not be interconnected.
[Amdt. 173-224, 55 FR 52616, Dec. 21, 1990]



    Subpart C--Definitions, Classification and Packaging for Class 1

    Source:  Amdt. 173-224, 55 FR 52617, Dec. 21, 1990, unless otherwise 
noted.



Sec. 173.50  Class 1--definitions.

    (a) Explosive. For the purpose of this subchapter, an explosive 
means any substance or article, including a device, which is designed to 
function by explosion (i.e., an extremely rapid release of gas and heat) 
or which, by chemical reaction within itself, is able to function in a 
similar manner even if not designed to function by explosion, unless the 
substance or article is otherwise classed under the provision of this 
subchapter.
    (b) Explosives in Class 1 are divided into six divisions as follows:
    (1) Division 1.1 consists of explosives that have a mass explosion 
hazard. A mass explosion is one which affects almost the entire load 
instantaneously.
    (2) Division 1.2 consists of explosives that have a projection 
hazard but not a mass explosion hazard.
    (3) Division 1.3 consists of explosives that have a fire hazard and 
either a

[[Page 415]]

minor blast hazard or a minor projection hazard or both, but not a mass 
explosion hazard.
    (4) Division 1.4 consists of explosives that present a minor 
explosion hazard. The explosive effects are largely confined to the 
package and no projection of fragments of appreciable size or range is 
to be expected. An external fire must not cause virtually instantaneous 
explosion of almost the entire contents of the package.
    (5) Division 1.5 \1\ consists of very insensitive explosives. This 
division is comprised of substances which have a mass explosion hazard 
but are so insensitive that there is very little probability of 
initiation or of transition from burning to detonation under normal 
conditions of transport.
---------------------------------------------------------------------------

    \1\ The probability of transition from burning to detonation is 
greater when large quantities are transported in a vessel.
---------------------------------------------------------------------------

    (6) Division 1.6 \2\ consists of extremely insensitive articles 
which do not have a mass explosive hazard. This division is comprised of 
articles which contain only extremely insensitive detonating substances 
and which demonstrate a negligible probability of accidental initiation 
or propagation.
---------------------------------------------------------------------------

    \2\ The risk from articles of Division 1.6 is limited to the 
explosion of a single article.
---------------------------------------------------------------------------

[Amdt. 173-224, 55 FR 52617 Dec. 21, 1990, as amended at 56 FR 66267, 
Dec. 20, 1991]



Sec. 173.51  Authorization to offer and transport explosives.

    (a) Unless otherwise provided in this subpart, no person may offer 
for transportation or transport an explosive, unless it has been tested 
and classed and approved by the Associate Administrator for Hazardous 
Materials Safety (Sec. 173.56).
    (b) Reports of explosives approved by the Department of Defense or 
the Department of Energy must be filed with, and receive acknowledgement 
in writing by, the Associate Administrator for Hazardous Materials 
Safety prior to such explosives being offered for transportation.



Sec. 173.52  Classification codes and compatibility groups of explosives.

    (a) The classification code for an explosive, which is assigned by 
the Associate Administrator for Hazardous Materials Safety in accordance 
with this subpart, consists of the division number followed by the 
compatibility group letter. Compatibility group letters are used to 
specify the controls for the transportation, and storage related 
thereto, of explosives and to prevent an increase in hazard that might 
result if certain types of explosives were stored or transported 
together. Transportation compatibility requirements for carriers are 
prescribed in Secs. 174.81, 175.78. 176.83 and 177.848 of this 
subchapter for transportation by rail, air, vessel, and public highway, 
respectively, and storage incidental thereto.
    (b) Compatibility groups and classification codes for the various 
types of explosives are set forth in the following tables. Table 1 sets 
forth compatibility groups and classification codes for substances and 
articles described in the first column of Table 1. Table 2 shows the 
number of classification codes that are possible within each explosive 
division. Altogether, there are 35 possible classification codes for 
explosives.

                     Table 1.--Classification Codes                     
------------------------------------------------------------------------
   Description of substances or       Compatibility      Classification 
     article to be classified             group               code      
------------------------------------------------------------------------
Primary explosive substance.......          A          1.1A             
Article containing a primary                B          1.1B             
 explosive substance and not                           1.2B             
 containing two or more effective                      1.4B             
 protective features. Some                                              
 articles, such as detonators for                                       
 blasting, detonator assemblies                                         
 for blasting and primers, cap-                                         
 type, are included, even though                                        
 they do not contain primary                                            
 explosives..                                                           
Propellant explosive substance or           C          1.1C             
 other deflagrating explosive                          1.2C             
 substance or article containing                       1.3C             
 such explosive substance.                             1.4C             
Secondary detonating explosive              D          1.1D             
 substance or black powder or                          1.2D             
 article containing a secondary                        1.4D             
 detonating explosive substance,                       1.5D             
 in each case without means of                                          
 initiation and without a                                               
 propelling charge, or article                                          
 containing a primary explosive                                         
 substance and containing two or                                        
 more effective protective                                              
 features.                                                              

[[Page 416]]

                                                                        
Article containing a secondary              E          1.1E             
 detonating explosive substance,                       1.2E             
 without means of initiation, with                     1.4E             
 a propelling charge (other than                                        
 one containing flammable liquid                                        
 gel or hypergolic liquid ).                                            
Article containing a secondary              F          1.1F             
 detonating explosive substance                        1.2F             
 with its means of initiation,                         1.3F             
 with a propelling charge (other                       1.4F             
 than one containing flammable                                          
 liquid gel or hypergolic liquid)                                       
 or without a propelling charge.                                        
Pyrotechnic substance or article            G          1.1G             
 containing a pyrotechnic                              1.2G             
 substance, or article containing                      1.3G             
 both an explosive substance and                       1.4G             
 an illuminating, incendiary, tear-                                     
 producing or smoke-producing                                           
 substance (other than a water-                                         
 activated article or one                                               
 containing white phosphorus,                                           
 phosphide or flammable liquid or                                       
 gel or hypergolic liquid).                                             
Article containing both an                  H          1.2H             
 explosive substance and white                         1.3H             
 phosphorus.                                                            
Article containing both an                  J          1.1J             
 explosive substance and flammable                     1.2J             
 liquid or gel.                                        1.3J             
Article containing both an                  K          1.2K             
 explosive substance and a toxic                       1.3K             
 chemical agent.                                                        
Explosive substance or article              L          1.1L             
 containing an explosive substance                     1.2L             
 and presenting a special risk                         1.3L             
 (e.g., due to water-activation or                                      
 presence of hybergolic liquids,                                        
 phosphides or pyrophoric                                               
 substances) needing isolation of                                       
 each type.                                                             
Articles containing only extremely          N          1.6N             
 insensitive detonating                                                 
 substances..                                                           
Substance or article so packed or           S          1.4S             
 designed that any hazardous                                            
 effects arising from accidental                                        
 functioning are limited to the                                         
 extent that they do not                                                
 significantly hinder or prohibit                                       
 fire fighting or other emergency                                       
 response efforts in the immediate                                      
 vicinity of the package.                                               
------------------------------------------------------------------------


    Table 2.--Scheme of Classification of Explosives, Combination of Hazard division With Compatibility Group   
----------------------------------------------------------------------------------------------------------------
                                                                     Compatibility group                        
----------------------------------------------------------------------------------------------------------------
              Hazard division                A    B    C    D    E    F    G    H    J    K    L    N    S   A-S
----------------------------------------------------------------------------------------------------------------
1.1                                         1.1                                                                 
                                              A  1.1                                                            
                                                   B  1.1                                                       
                                                        C  1.1                                                  
                                                             D  1.1                                             
                                                                  E  1.1                                        
                                                                       F  1.1                                   
                                                                            G  ...  1.1                         
                                                                                      J  ...  1.1               
                                                                                                L  ...  ...    9
1.2                                         ...  1.2                                                            
                                                   B  1.2                                                       
                                                        C  1.2                                                  
                                                             D  1.2                                             
                                                                  E  1.2                                        
                                                                       F  1.2                                   
                                                                            G  1.2                              
                                                                                 H  1.2                         
                                                                                      J  1.2                    
                                                                                           K  1.2               
                                                                                                L  ...  ...   10
1.3                                         ...  ...  1.3                                                       
                                                        C  ...  ...  1.3                                        
                                                                       F  1.3                                   
                                                                            G  1.3                              
                                                                                 H  1.3                         
                                                                                      J  1.3                    
                                                                                           K  1.3               
                                                                                                L  ...  ...    7
1.4                                         ...  1.4                                                            
                                                   B  1.4                                                       
                                                        C  1.4                                                  
                                                             D  1.4                                             
                                                                  E  1.4                                        
                                                                       F  1.4                                   
                                                                            G  ...  ...  ...  ...  ...  1.4     
                                                                                                          S    7
1.5                                         ...  ...  ...  1.5                                                  
                                                             D  ...  ...  ...  ...  ...  ...  ...  ...  ...    1
1.6                                         ...  ...  ...  ...  ...  ...  ...  ...  ...  ...  ...  1.6          
                                                                                                     N  ...    1
                                           ---------------------------------------------------------------------
1.6                                           1    3    4    4    3    4    4    2    3    2    3    1    1   35
----------------------------------------------------------------------------------------------------------------

[Amdt. 173-224, 55 FR 52617, Dec. 21, 1990, as amended by Amdt. 173-241, 
59 FR 67492, Dec. 29, 1994]



Sec. 173.53  Provisions for using old classifications of explosives.

    Where the classification system in effect prior to January 1, 1991, 
is referenced in State or local laws, ordinances or regulations not 
pertaining to the transportation of hazardous materials, the following 
table may be used to compare old and new hazard class names:

                                                                        
------------------------------------------------------------------------
                                            Class name prior to Jan. 1, 
         Current classification                        1991             
------------------------------------------------------------------------
Division 1.1............................  Class A explosives.           
Division 1.2............................  Class A or Class B explosives.
Division 1 3............................  Class B explosive.            
Division 1.4............................  Class C explosives.           
Division 1.5............................  Blasting agents.              
Division 1.6............................  No applicable hazard class.   
------------------------------------------------------------------------



Sec. 173.54  Forbidden explosives.

    Unless otherwise provided in this subchapter, the following 
explosives shall not be offered for transportation or transported:
    (a) An explosive that has not been approved in accordance with 
Sec. 173.56 of this subpart.
    (b) An explosive mixture or device containing a chlorate and also 
containing:

[[Page 417]]

    (1) An ammonium salt, including a substituted ammonium or quaternary 
ammonium salt; or
    (2) An acidic substance, including a salt of a weak base and a 
strong acid.
    (c) A leaking or damaged package of explosives.
    (d) Propellants that are unstable, condemned or deteriorated.
    (e) Nitroglycerin. diethylene glycol dinitrate, or any other liquid 
explosives not specifically authorized by this subchapter.
    (f) A loaded firearm (except as provided in 14 CFR 108.11).
    (g) Fireworks that combine an explosive and a detonator.
    (h) Fireworks containing yellow or white phosphorus.
    (i) A toy torpedo, the maximum outside dimension of which exceeds 23 
mm (0.906 inch), or a toy torpedo containing a mixture of potassium 
chlorate, black antimony (antimony sulfide), and sulfur, if the weight 
of the explosive material in the device exceeds 0.26 g (0.01 ounce).
    (j) Explosives specifically forbidden in the Sec. 172.101 Table of 
this subchapter.
    (k) Explosives not meeting the acceptance criteria specified in 
Sec. 173.57 of this subchapter.
    (l) An explosive article with its means of initiation or ignition 
installed, unless approved in accordance with Sec. 173.56.
[Amdt. 173-224, 55 FR 52617 Dec. 21, 1990, as amended at 56 FR 66267, 
Dec. 20, 1991; Amdt. 173-236, 58 FR 50236, Sept. 24, 1993]



Sec. 173.55  [Reserved]



Sec. 173.56  New explosives--definition and procedures for classification and approval.

    (a) Definition of new explosive. For the purposes of this subchapter 
a new explosive means an explosive produced by a person who:
    (1) Has not previously produced that explosive; or
    (2) Has previously produced that explosive but has made a change in 
the formulation, design or process so as to alter any of the properties 
of the explosive. An explosive will not be considered a ``new 
explosive'' if an agency listed in paragraph (b) of this section has 
determined, and confirmed in writing to the Associate Administrator for 
Hazardous Materials Safety, that there are no significant differences in 
hazard characteristics from the explosive previously approved.
    (b) Examination, classing and approval. Except as provided in 
paragraph (j) of this section, no person may offer a new explosive for 
transportation unless that person has specified to the examining agency 
the ranges of composition of ingredients and compounds, showing the 
intended manufacturing tolerances in the composition of substances or 
design of articles which will be allowed in that material or device, and 
unless it has been examined, classed and approved as follows:
    (1) A new explosive must be examined and assigned a recommended 
shipping description, class, and classification code by a person 
approved by the Associate Administrator for Hazardous Materials Safety. 
The recommendation of class and classification code must be based on the 
tests and criteria prescribed in Secs. 173.52, 173.57 and 173.58 of this 
subchapter. Each person requesting approval of a new explosive must 
submit a copy of the report of examination and assignment of recommended 
shipping description, class and classification code to the Associate 
Administrator for Hazardous Materials Safety for approval and must 
receive written approval and an EX-number from the Associate 
Administrator for Hazardous Materials Safety before offering that 
explosive for transportation.
    (2) A new explosive made by or under the direction or supervision of 
a component of the DOD may be examined, classed, and concurred in by:
    (i) U.S. Army Technical Center for Explosives Safety (SMCAC-EST), 
Naval Sea Systems Command (SEA-9934), or Air Force Safety Agency (SEW), 
when approved by the Chairman, DOD Explosives Board, in accordance with 
the Department of Defense Explosives Hazard Classification Procedures 
(TB 700-2, dated December 1989); or
    (ii) The agencies and procedures specified in paragraph (b)(1) of 
this section.
    (3) A new explosive made by or under the direction or supervision of 
the Department of Energy (DOE) may be--

[[Page 418]]

    (i) Examined by the DOE in accordance with the Explosives Hazard 
Classification Procedures (TB 700-2, dated December, 1989), and must be 
classed and approved by DOE; or
    (ii) Examined, classed, and approved in accordance with paragraph 
(b)(1) of this section.
    (4) For a material shipped under the description of ``ammonium 
nitrate-fuel oil mixture (ANFO)'', the only test required for 
classification purposes is the Cap Sensitivity Test (Test Method 5(a). 
prescribed in the Explosive Test Manual). The test must be performed by 
an agency listed in paragraph (b)(1), (b)(2), or (b)(3) of this section, 
the manufacturer, or the shipper. A copy of the test report must be 
submitted to the Associate Administrator for Hazardous Materials Safety 
before the material is offered for transportation, and a copy of the 
test report must be retained by the shipper for as long as that material 
is shipped. At a minimum, the test report must contain the name and 
address of the person or organization conducting the test, date of the 
test, quantitative description of the mixture. including prill size and 
porosity, and a description of the test results.
    (c) Filing DOD or DOE approval report. DOD or DOE must file a copy 
of each approval, accompanied by supporting laboratory data, with the 
Associate Administrator for Hazardous Materials Safety and receive 
acknowledgement in writing before offering the new explosive for 
transportation, unless the new explosive is:
    (1) Being transported under paragraph (d) or (e) of this section; or
    (2) Covered by a national security classification currently in 
effect.
    (d) Transportation of explosive samples for examination. 
Notwithstanding the requirements of paragraph (b) of this section with 
regard to the transportation of a new explosive that has not been 
approved, a person may offer a sample of a new explosive for 
transportation, by railroad, highway, or vessel from the place where it 
was produced to an agency identified in paragraph (b) of this section, 
for examination if--
    (1) The new explosive has been assigned a tentative shipping 
description and class in writing by the testing agency;
    (2) The new explosive is packaged as required by this part according 
to the tentative description and class assigned, unless otherwise 
specified in writing by the testing agency; and,
    (3) The package is labeled as required by this subchapter and the 
following is marked on the package:
    (i) The words ``SAMPLE FOR LABORATORY EXAMINATION'';
    (ii) The net weight of the new explosive; and
    (iii) The tentative shipping name and identification number.
    (e) Transportation of unapproved explosives for developmental 
testing. Notwithstanding the requirements of paragraph (b) of this 
section, the owner of a new explosive that has not been examined or 
approved may transport that new explosive from the place where it was 
produced to an explosives testing range if--
    (1) It is not a primary (a 1.1A initiating) explosive or a forbidden 
explosive according to this subchapter;
    (2) It is described as a Division 1.1 explosive (substance or 
article) and is packed, marked, labeled, described on shipping papers 
and is otherwise offered for transportation in conformance with the 
requirements of this subchapter applicable to Division 1.1;
    (3) It is transported in a motor vehicle operated by the owner of 
the explosive; and
    (4) It is accompanied by a person, in addition to the operator of 
the motor vehicle, who is qualified by training and experience to handle 
the explosive.
    (f) Notwithstanding the requirements of paragraphs (b) and (d) of 
this section, the Associate Administrator for Hazardous Materials Safety 
may approve a new explosive on the basis of an approval issued for the 
explosive by the competent authority of a foreign government, or when 
examination of the explosive by a person approved by the Associate 
Administrator for Hazardous Materials Safety is impracticable, on the 
basis of reports of tests conducted by disinterested third parties, or 
may approve the transportation of an explosives sample for the purpose 
of examination by a person approved by

[[Page 419]]

the Associate Administrator for Hazardous Materials Safety.
    (g) Notwithstanding the requirements of paragraph (b) of this 
section, an explosive may be transported under Secs. 171.11, 171.12, 
171.12a or Sec. 176.11 of this subchapter without the approval of the 
Associate Administrator for Hazardous Materials Safety if the Associate 
Administrator for Hazardous Materials Safety has acknowledged, in 
writing, the acceptability of an approval issued by the competent 
authority of a foreign government pursuant to the provisions of the UN 
Recommendations, the ICAO Technical Instructions, the IMDG Code, or 
other national or international regulations based on the UN 
Recommendations. In such a case, a copy of the foreign competent 
authority approval, and a copy of the written acknowledgement of its 
acceptance must accompany each shipment of that explosive.
    (h) The requirements of this section do not apply to cartridges, 
small arms which are:
    (1) Not a forbidden explosive under Sec. 173.54 of this subchapter;
    (2) Ammunition for rifle, pistol, or shotgun;
    (3) Ammunition with inert projectile or blank ammunition; and
    (4) Ammunition not exceeding 50 caliber for rifle or pistol 
cartridges or 8 gauge for shotgun shells.

Cartridges, small arms meeting the criteria of this paragraph (h) may be 
assigned a classification code of 1.4S by the manufacturer.
    (i) If experience or other data indicate that the hazard of a 
material or a device containing an explosive composition is greater or 
less than indicated according to the definition and criteria specified 
in Secs. 173.50, 173.56, and 173.58 of this subchapter, the Associate 
Administrator for Hazardous Materials Safety may, following examination 
in accordance with paragraph (b) of this section, revise its 
classification or except the material or device from the requirements of 
this subchapter.
    (j) Fireworks. Notwithstanding the requirements of paragraph (b) of 
this section, Division 1.3 and 1.4 fireworks may be classed and approved 
by the Associate Administrator for Hazardous Materials Safety without 
prior examination and offered for transportation if the following 
conditions are met:
    (1) The fireworks are manufactured in accordance with the applicable 
requirements in APA Standard 87-1;
    (2) A thermal stability test is conducted on the device by the BOE, 
the BOM, or the manufacturer. The test must be performed by maintaining 
the device, or a representative prototype of a large device such as a 
display shell, at a temperature of 75  deg.C (167  deg.F) for 48 
consecutive hours. When a device contains more than one component, those 
components which could be in physical contact with each other in the 
finished device must be placed in contact with each other during the 
thermal stability test; and
    (3) The manufacturer applies in writing to the Associate 
Administrator for Hazardous Materials Safety following the applicable 
requirements in APA Standard 87-1, and is notified in writing by the 
Associate Administrator for Hazardous Materials Safety that the 
fireworks have been classed, approved, and assigned an EX-number. Each 
application must be complete, including all relevant background data and 
copies of all applicable drawings, test results, and any other pertinent 
information on each device for which approval is being requested. The 
manufacturer must sign the application and certify that the device for 
which approval is requested conforms to APA Standard 87-1 and that the 
descriptions and technical information contained in the application are 
complete and accurate. If the application is denied, the manufacturer 
will be notified in writing of the reasons for the denial. The Associate 
Administrator for Hazardous Materials Safety may require that the 
fireworks be examined by an agency listed in paragraph (b)(1) of this 
section.
[Amdt. 173-224, 55 FR 52617 Dec. 21, 1990, as amended at 56 FR 66267, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; 62 FR 51560, 
Oct. 1, 1997]



Sec. 173.57  Acceptance criteria for new explosives.

    (a) Unless otherwise excepted, an explosive substance must be 
subjected to the Drop Weight Impact Sensitivity Test (Test Method 
3(a)(i)), the Friction Sensitivity Test (Test Method 3(b)(iii)),

[[Page 420]]

the Thermal Stability Test (Test Method 3(c)) at 75  deg.C (167  deg.F) 
and the Small-Scale Burning Test (Test Method 3(d)(i)), each as 
described in the Explosive Test Manual (UN Recommendations on the 
Transport of Dangerous Goods, Tests and Criteria, Part I, Second Edition 
(see Sec. 171.7 of this subchapter). A substance is forbidden for 
transportation if any one of the following occurs:
    (1) For a liquid, failure to pass the test criteria when tested in 
the Drop Weight Impact Sensitivity Test apparatus for liquids;
    (2) For a solid, failure to pass the test criteria when tested in 
the Drop Weight Impact Sensitivity Test apparatus for solids;
    (3) The substance has a friction sensitiveness equal to or greater 
than that of dry pentaerythrite tetranitrate (PETN) when tested in the 
Friction Sensitivity Test;
    (4) The substance fails to pass the test criteria specified in the 
Thermal Stability Test at 75  deg.C (167  deg.F); or
    (5) Explosion occurs when tested in the Small-Scale Burning Test.
    (b) An explosive article, packaged or unpackaged, or a packaged 
explosive substance must be subjected to the Thermal Stability Test for 
Articles and Packaged Articles (Test method 4(a)(i)) and the Twelve 
Meter Drop Test (Test Method 4(b)(ii)), when appropriate, in the 
Explosive Test Manual. An article or packaged substance is forbidden for 
transportation if evidence of thermal instability or excessive impact 
sensitivity is found in those tests according to the criteria and 
methods of assessing results prescribed therein.
    (c) Dynamite (explosive, blasting, type A) is forbidden for 
transportation if any of the following occurs:
    (1) It does not have uniformly mixed with the absorbent material a 
satisfactory antacid in a quantity sufficient to have the acid 
neutralizing power of an amount of magnesium carbonate equal to one 
percent of the nitroglycerin or other liquid explosive ingredient;
    (2) During the centrifuge test (Test Method D-2, in appendix D to 
this part) or the compression test (Test Method D-3 in appendix D to 
this part), a non-gelatin dynamite loses more than 3 percent by weight 
of the liquid explosive or a gelatin dynamite loses more than 10 percent 
by weight of the liquid explosive; or
    (3) During the leakage test (Test Method D-1 in appendix D to this 
part), there is any loss of liquid.
[Amdt. 173-224, 55 FR 52617 Dec. 21, 1990, as amended at 58 FR 51532, 
Oct. 1, 1993]



Sec. 173.58  Assignment of class and division for new explosives.

    (a) Division 1.1., 1.2., 1.3., and 1.4 explosives. In addition to 
the test prescribed in Sec. 173.57 of this subchapter, a substance or 
article in these divisions must be subjected to Test Methods 6(a), 6(b), 
and 6(c), as described in the Explosive Test Manual, for assignment to 
an appropriate division. The criteria for assignment of class and 
division are as follows:
    (1) Division 1.1 if the major hazard is mass explosion;
    (2) Division 1.2 if the major hazard is dangerous projections;
    (3) Division 1.3 if the major hazard is radiant heat or violent 
burning, or both, but there is no blast or projection hazard;
    (4) Division 1.4 if there is a small hazard with no mass explosion 
and no projection of fragments of appreciable size or range;
    (5) Division 1.4 Compatibility Group S (1.4S) if the hazardous 
effects are confined within the package or the blast and projection 
effects do not significantly hinder emergency response efforts; or
    (6) Not in the explosive class if the substance or article does not 
have significant explosive hazard or if the effects of explosion are 
completely confined within the article.
    (b) Division 1.5 explosive. Except for ANFO, a substance that has 
been examined in accordance with the provisions Sec. 173.57(a) of this 
subchapter, must be subjected to the following additional tests: Cap 
Sensitivity Test, Princess Incendiary Spark Test, DDT Test, and External 
Fire Test, each as described in the Explosive Test Manual. A material 
may not be classed as a Division 1.5 explosive if any of the following 
occurs:
    (1) Detonation occurs in the Cap Sensitivity Test (Test Method 
5(a));

[[Page 421]]

    (2) Detonation occurs in the DDT Test (Test Method 5(b)(ii));
    (3) An explosion, evidenced by a loud noise and projection of 
fragments, occurs in the External Fire Test (Test Method 5(c), or
    (4) Ignition or explosion occurs in the Princess Incendiary Spark 
Test (Test Method 5(d)).
    (c) Division 1.6 explosive. (1) In order to be classed as a 1.6 
explosive, an article must pass all of the following tests, as 
prescribed in the Explosive Test Manual:
    (i) The 1.6 Article External Fire Test;
    (ii) The 1.6 Article Slow Cook-off Test;
    (iii) The 1.6 Article Propagation Test; and
    (iv) The 1.6 Article Bullet Impact Test.
    (2) A substance intended for use as the explosive load in an article 
of Division 1.6 must be an extremely insensitive detonating substance 
(EIDS). In order to determine if a substance is an EIDS, it must be 
subjected to the tests in paragraphs (c)(2)(i) through (c)(2)(x) of this 
section, which are described in the Explosive Test Manual. The substance 
must be tested in the form (i.e., composition, granulation, density, 
etc.) in which it is to be used in the article. A substance is not an 
EIDS if it fails any of the following tests:
    (i) The Drop Weight Impact Sensitivity Test;
    (ii) The Friction Sensitivity Test;
    (iii) The Thermal Sensitivity Test at 75  deg.C (167  deg.F);
    (iv) The Small Scale Burning Test;
    (v) The EIDS Cap Test;
    (vi) The EIDS Gap Test;
    (vii) The Susan Test;
    (viii) The EIDS Bullet Impact Test;
    (ix) The EIDS External Fire Test; and
    (x) The EIDS Slow Cook-off Test.

    (d) The Associate Administrator for Hazardous Materials Safety may 
waive or modify certain test(s) identified in Secs. 173.57 and 173.58 of 
this subchapter, or require additional testing, if appropriate. In 
addition, the Associate Administrator for Hazardous Materials Safety may 
limit the quantity of explosive in a device.
    (e) Each explosive is assigned a compatibility group letter by the 
Associate Administrator for Hazardous Materials Safety based on the 
criteria prescribed in Sec. 173.52(b) of this subchapter.
[Amdt. 173-224, 55 FR 52617 Dec. 21, 1990, as amended at 56 FR 66267, 
Dec. 20, 1991]



Sec. 173.59  Description of terms for explosives.

    For the purpose of this subchapter, a description of the following 
terms is provided for information only. They must not be used for 
purposes of classification or to replace proper shipping names 
prescribed in Sec. 172.101 of this subchapter.
    Ammonium-nitrate--fuel oil mixture (ANFO). A blasting explosive 
containing no essential ingredients other than prilled ammonium nitrate 
and fuel oil.
    Ammunition. Generic term related mainly to articles of military 
application consisting of all types of bombs, grenades, rockets, mines, 
projectiles and other similar devices or contrivances.
    Ammunition, illuminating, with or without burster, expelling charge 
or propelling charge. Ammunition designed to produce a single source of 
intense light for lighting up an area. The term includes illuminating 
cartridges, grenades and projectiles, and illuminating and target 
identification bombs. The term excludes the following articles which are 
listed separately: cartridges, signal; signal devices; hand signals; 
distress flares, aerial and flares, surface.
    Ammunition, incendiary. Ammunition containing an incendiary 
substance which may be a solid, liquid or gel including white 
phosphorus. Except when the composition is an explosive per se, it also 
contains one or more of the following: a propelling charge with primer 
and igniter charge, or a fuze with burster or expelling charge. The term 
includes: Ammunition, incendiary, liquid or gel, with burster, expelling 
charge or propelling charge; Ammunition, incendiary with or without 
burster, expelling charge or propelling charge; and Ammunition, 
incendiary, white phosphorus, with burster, expelling charge or 
propelling charge.
    Ammunition, practice. Ammunition without a main bursting charge, 
containing a burster or expelling charge. Normally it also contains a 
fuze and propelling charge. The term excludes

[[Page 422]]

the following article which is listed separately: Grenades, practice.
    Ammunition, proof. Ammunition containing pyrotechnic substance, used 
to test the performance or strength of new ammunition, weapon component 
or assemblies.
    Ammunition, smoke. Ammunition containing a smoke-producing substance 
such as chlorosulphonic acid mixture (CSAM), titanium tetrachloride 
(FM), white phosphorus, or smoke-producing substance whose composition 
is based on hexachlorothannol (HC) or red phosphorus. Except when the 
substance is an explosive per se, the ammunition also contains one or 
more of the following: a propelling charge with primer and igniter 
charge, or a fuze with burster or expelling charge. The term includes: 
Ammunition, smoke, with or without burster, expelling charge or 
propelling charge; Ammunition, smoke, white phosphorus with burster, 
expelling charge or propelling charge.
    Ammunition, tear-producing with burster, expelling charge or 
propelling charge. Ammunition containing tear-producing substance. It 
may also contain one or more of the following: a pyrotechnic substance, 
a propelling charge with primer and igniter charge, or a fuze with 
burster or expelling charge.
    Ammunition, toxic. Ammunition containing toxic agent. It may also 
contain one or more of the following: a pyrotechnic substance, a 
propelling charge with primer and igniter charge, or a fuze with burster 
or expelling charge.
    Articles, explosive, extremely insensitive (Articles, EEI). Articles 
that contain only extremely insensitive detonating substances and which 
demonstrate a negligible probability of accidental initiation or 
propagation under normal conditions of transport and which have passed 
Test Series 7.
    Articles, pyrophoric. Articles which contain a pyrophoric substance 
(capable of spontaneous ignition when exposed to air) and an explosive 
substance or component. The term excludes articles containing white 
phosphorus.
    Articles, pyrotechnic for technical purposes. Articles which contain 
pyrotechnic substances and are used for technical purposes, such as heat 
generation, gas generation, theatrical effects, etc. The term excludes 
the following articles which are listed separately: all ammunition; 
cartridges, signal; cutters, cable, explosive; fireworks; flares, 
aerial; flares, surface; release devices, explosives; rivets, explosive; 
signal devices, hand; signals, distress; signals, railway track, 
explosive; and signals, smoke.
    Black powder (gunpowder). Substance consisting of an intimate 
mixture of charcoal or other carbon and either potassium or sodium 
nitrate, and sulphur. It may be meal, granular, compressed, or 
pelletized.
    Bombs. Explosive articles which are dropped from aircraft. They may 
contain a flammable liquid with bursting charge, a photo-flash 
composition or bursting charge. The term excludes torpedoes (aerial) and 
includes bombs, photo-flash; bombs with bursting charge; bombs with 
flammable liquids, with bursting charge.
    Boosters. Articles consisting of a charge of detonating explosive 
without means of initiation. They are used to increase the initiating 
power of detonators or detonating cord.
    Bursters, explosive. Articles consisting of a small charge of 
explosive to open projectiles or other ammunition in order to disperse 
their contents.
    Cartridges, blank. Articles which consist of a cartridge case with a 
center or rim fire primer and a confined charge of smokeless or black 
powder, but no projectile. Used in training, saluting, or in starter 
pistols, etc.
    Cartridges, flash. Articles consisting of a casing, a primer and 
flash powder, all assembled in one piece for firing.
    Cartridges for weapons. (1) Fixed (assembled) or semi-fixed 
(partially assembled) ammunition designed to be fired from weapons. Each 
cartridge includes all the components necessary to function the weapon 
once. The name and description should be used for military small arms 
cartridges that cannot be described as cartridges, small arms. Separate 
loading ammunition is included under this name and description when the 
propelling charge and projectile are packed together (see also 
Cartridges, blank).

[[Page 423]]

    (2) Incendiary, smoke, toxic, and tear-producing cartridges are 
described under ammunition, incendiary, etc.
    Cartridges for weapons, inert projectile. Ammunition consisting of a 
casing with propelling charge and a solid or empty projectile.
    Cartridges, oil well. Articles consisting of a casing of thin fiber, 
metal or other material containing only propellant explosive. The term 
excludes charges, shaped, commercial.
    Cartridges, power device. Articles designed to accomplish mechanical 
actions. They consist of a casing with a charge of deflagrating 
explosive and a means of ignition. The gaseous products of the 
deflagration produce inflation, linear or rotary motion; activate 
diaphragms, valves or switches, or project fastening devices or 
extinguishing agents.
    Cartridges, signal. Articles designed to fire colored flares or 
other signals from signal pistols or devices.
    Cartridges, small arms. Ammunition consisting of a cartridge case 
fitted with a center or rim fire primer and containing both a propelling 
charge and solid projectile(s). They are designed to be fired in weapons 
of caliber not larger than 19.1 mm. Shotgun cartridges of any caliber 
are included in this description. The term excludes: Cartridges, small 
arms, blank, and some military small arms cartridges listed under 
Cartridges for weapons, inert projectile.
    Cases, cartridge, empty with primer. Articles consisting of a 
cartridge case made from metal, plastics or other non-flammable 
materials, in which only the explosive component is the primer.
    Cases, combustible, empty, without primer. Articles consisting of 
cartridge cases made partly or entirely from nitrocellulose.
    Charges, bursting. Articles consisting of a charge of detonating 
explosive such as hexolite, octolite, or plastics-bonded explosive 
designed to produce effect by blast or fragmentation.
    Charges, demolition. Articles consisting of a charge of detonating 
explosive in a casing of fiberboard, plastics, metal or other material. 
The term excludes articles identified as bombs, mines, etc.
    Charges, depth. Articles consisting of a charge of detonating 
explosive contained in a drum or projectile. They are designed to 
detonate under water.
    Charges, expelling. A charge of deflagrating explosive designed to 
eject the payload from the parent article without damage.
    Charges, explosive, commercial without detonator. Articles 
consisting of a charge of detonating explosive without means of 
initiation, used for explosive welding, joining, forming, and other 
commercial processes.
    Charges, propelling. Articles consisting of propellant charge in any 
physical form, with or without a casing, for use in cannon or for 
reducing drag for projectiles or as a component of rocket motors.
    Charges, propelling for cannon. Articles consisting of a propellant 
charge in any physical form, with or without a casing, for use in a 
cannon.
    Charges, shaped commercial, without detonator. Articles consisting 
of a casing containing a charge of detonating explosive with a cavity 
lined with rigid material, without means of initiation. They are 
designed to produce a powerful, penetrating jet effect.
    Charges, shaped, flexible, linear. Articles consisting of a V-shaped 
core of a detonating explosive clad by a flexible metal sheath.
    Charges, supplementary, explosive. Articles consisting of a small 
removable booster used in the cavity of a projectile between the fuze 
and the bursting charge.
    Components, explosive train, n.o.s. Articles containing an explosive 
designed to transmit a detonation or deflagration within an explosive 
train.
    Contrivance, water-activated with burster, expelling charge or 
propelling charge. Articles whose functioning depends of physico-
chemical reaction of their contents with water.
    Cord, detonating, flexible. Articles consisting of a core of 
detonating explosive enclosed in spun fabric with plastics or other 
covering.
    Cord (fuse) detonating, metal clad. Articles consisting of a core of 
detonating explosive clad by a soft metal tube with or without 
protective covering. When the core contains a sufficiently

[[Page 424]]

small quantity of explosive, the words ``mild effect'' are added.
    Cord igniter. Articles consisting of textile yarns covered with 
black powder or another fast-burning pyrotechnic composition and a 
flexible protective covering, or consisting of a core of black powder 
surrounded by a flexible woven fabric. It burns progressively along its 
length with an external flame and is used to transmit ignition from a 
device to a charge or primer.
    Cutters, cable, explosive. Articles consisting of a knife-edged 
device which is driven by a small charge of deflagrating explosive into 
an anvil.
     Detonator assemblies, non-electric, for blasting. Non-electric 
detonators assembled with and activated by such means as safety fuse, 
shock tube, flash tube, or detonating cord. They may be of instantaneous 
design or incorporate delay elements. Detonating relays incorporating 
detonating cord are included. Other detonating relays are included in 
Detonators, nonelectric.
    Detonators. Articles consisting of a small metal or plastic tube 
containing explosives such as lead azide, PETN, or combinations of 
explosives. They are designed to start a detonation train. They may be 
constructed to detonate instantaneously, or may contain a delay element. 
They may contain no more than 10 g of total explosives weight, excluding 
ignition and delay charges, per unit. The term includes: detonators for 
ammunition; detonators for blasting, both electric and non-electric; and 
detonating relays without flexible detonating cord.
    Dynamite. A detonating explosive containing a liquid explosive 
ingredient (generally nitroglycerin, similar organic nitrate esters, or 
both) that is uniformly mixed with an absorbent material, such as wood 
pulp, and usually contains materials such as nitrocellulose, sodium and 
ammonium nitrate.
    Entire load and total contents. The phrase means such a substantial 
portion of the material explodes that the practical hazard should be 
assessed by assuming simultaneous explosion of the whole of the 
explosive content of the load or package.
    Explode. The term indicates those explosive effects capable of 
endangering life and property through blast, heat, and projection of 
missiles. It encompasses both deflagration and detonation.
    Explosion of the total contents. The phrase is used in testing a 
single article or package or a small stack of articles or packages.
    Explosive, blasting. Detonating explosive substances used in mining, 
construction, and similar tasks. Blasting explosives are assigned to one 
of five types. In addition to the ingredients listed below for each 
type, blasting explosives may also contain inert components, such as 
kieselguhr, and other minor ingredients, such as coloring agents and 
stabilizers.
    Explosive, blasting, type A. Substances consisting of liquid organic 
nitrates, such as nitroglycerin, or a mixture of such ingredients with 
one or more of the following: nitrocellulose, ammonium nitrate or other 
inorganic nitrates, aromatic nitro-derivatives, or combustible 
materials, such as wood-meal and aluminum powder. Such explosives must 
be in powdery, gelatinous, plastic or elastic form. The term includes 
dynamite, blasting gelatine and gelatine dynamites.
    Explosive, blasting, type B. Substances consisting of a mixture of 
ammonium nitrate or other inorganic nitrates with an explosive, such as 
trinitrotoluene, with or without other substances, such as wood-meal or 
aluminum powder, or a mixture of ammonium nitrate or other inorganic 
nitrates with other combustible substances which are not explosive 
ingredients. Such explosives may not contain nitroglycerin, similar 
liquid organic nitrates, or chlorates.
    Explosive, blasting, type C. Substances consisting of a mixture of 
either potassium or sodium chlorate or potassium, sodium or ammonium 
perchlorate with organic nitro-derivatives or combustible materials, 
such as wood-meal or aluminum powder, or a hydrocarbon. Such explosives 
must not contain nitroglycerin or any similar liquid organic nitrate.
    Explosive, blasting, type D. Substances consisting of a mixture of 
organic nitrate compounds and combustible materials, such as 
hydrocarbons and aluminum powder. Such explosives must

[[Page 425]]

not contain nitroglycerin, any similar liquid organic nitrate, chlorate 
or ammonium-nitrate. The term generally includes plastic explosives.
    Explosive, blasting, type E. Substances consisting of water as an 
essential ingredient and high proportions of ammonium nitrate or other 
oxidizer, some or all of which are in solution. The other constituents 
may include nitro-derivatives, such as trinitrotoluene, hydrocarbons or 
aluminum powder. The term includes: explosives, emulsion; explosives, 
slurry; and explosives, watergel.
    Explosive, deflagrating. A substance, e.g., propellant, which reacts 
by deflagration rather than detonation when ignited and used in its 
normal manner.
    Explosive, detonating. A substance which reacts by detonation rather 
than deflagration when initiated and used in its normal manner.
    Explosive, extremely insensitive detonating substance (EIDS). A 
substance which, although capable of sustaining a detonation, has 
demonstrated through tests that it is so insensitive that there is very 
little probability of accidental initiation.
    Explosive, primary. Explosive substance which is manufactured with a 
view to producing a practical effect by explosion, is very sensitive to 
heat, impact, or friction, and even in very small quantities, detonates. 
The major primary explosives are mercury fulminate, lead azide, and lead 
styphnate.
    Explosive, secondary. An explosive substance which is relatively 
insensitive (when compared to primary explosives) and is usually 
initiated by primary explosives with or without the aid of boosters or 
supplementary charges. Such an explosive may react as a deflagrating or 
as a detonating explosive.
    Fireworks. Pyrotechnic articles designed for entertainment.
    Flares. Articles containing pyrotechnic substances which are 
designed to illuminate, identify, signal, or warn. The term includes: 
flares, aerial and flares, surface.
    Flash powder. Pyrotechnic substance which, when ignited, produces an 
intense light.
    Fracturing devices, explosive, for oil wells, without detonators. 
Articles consisting of a charge of detonating explosive contained in a 
casing without the means of initiation. They are used to fracture the 
rock around a drill shaft to assist the flow of crude oil from the rock.
    Fuse/Fuze. Although these two words have a common origin (French 
fusee, fusil) and are sometimes considered to be different spellings, it 
is useful to maintain the convention that fuse refers to a cord-like 
igniting device, whereas fuze refers to a device used in ammunition 
which incorporates mechanical, electrical, chemical, or hydrostatic 
components to initiate a train by deflagration or detonation.
    Fuse, igniter. Articles consisting of a metal tube with a core of 
deflagrating explosives.
    Fuse, instantaneous, non-detonating (Quickmatch). Article consisting 
of cotton yarns impregnated with fine black powder. It burns with an 
external flame and is used in ignition trains for fireworks, etc.
    Fuse, safety. Article consisting of a core of fine-grained black 
powder surrounded by a flexible woven fabric with one or more protective 
outer coverings. When ignited, it burns at a predetermined rate without 
any explosive effect.
    Fuzes. Articles designed to start a detonation or deflagration in 
ammunition. They incorporate mechanical, electrical, chemical, or 
hydrostatic components and generally protective features. The term 
includes: Fuzes, detonating; fuzes detonating with protective features; 
and fuzes igniting.
    Grenades, hand or rifle. Articles which are designed to be thrown by 
hand or to be projected by rifle. The term includes: grenades, hand or 
rifle, with bursting charge; and grenades, practice, hand or rifle. The 
term excludes: grenades, smoke.
    Igniters. Articles containing one or more explosive substance used 
to start deflagration of an explosive train. They may be actuated 
chemically, electrically, or mechanically. The term excludes: cord, 
igniter; fuse, igniter; fuse, instantaneous, non-detonating; fuze, 
igniting; lighters, fuse, instantaneous, non-detonating; fuzes, 
igniting; lighters, fuse; primers, cap type; and primers, tubular.

[[Page 426]]

    Ignition, means of. A general term used in connection with the 
method employed to ignite a deflagrating train of explosive or 
pyrotechnic substances (for example: a primer for propelling charge, an 
igniter for a rocket motor or an igniting fuze).
    Initiation, means of. (1) A device intended to cause the detonation 
of an explosive (for example: detonator, detonator for ammunition, or 
detonating fuze).
    (2) The term with its own means of initiation means that the 
contrivance has its normal initiating device assembled to it and this 
device is considered to present a significant risk during transport but 
not one great enough to be unacceptable. The term does not apply, 
however, to a contrivance packed together with its means of initiation, 
provided the device is packaged so as to eliminate the risk of causing 
detonation of the contrivance in the event of functioning of the 
initiating device. The initiating device can even be assembled in the 
contrivance provided there are protective features ensuring that the 
device is very unlikely to cause detonation of the contrivance under 
conditions which are associated with transport.
    (3) For the purposes of classification, any means of initiation 
without two effective protective features should be regarded as 
Compatibility Group B; an article with its own means of initiation, 
without two effective protective features, is Compatibility Group F. A 
means of initiation which itself possesses two effective protective 
features is Compatibility Group D, and an article with its own means of 
initiation which possesses two effective features is Compatibility Group 
D or E. A means of initiation, adjudged as having two effective 
protective features, must be approved by the Associate Administrator for 
Hazardous Materials Safety. A common and effective way of achieving the 
necessary degree of protection is to use a means of initiation which 
incorporates two or more independent safety features.
    Jet perforating guns, charged, oil well, without detonator. Articles 
consisting of a steel tube or metallic strip, into which are inserted 
shaped charges connected by detonating cord, without means of 
initiation.
    Lighters, fuse. Articles of various design actuated by friction, 
percussion, or electricity and used to ignite safety fuse.
    Mass explosion. Explosion which affects almost the entire load 
virtually instantaneously.
    Mines. Articles consisting normally of metal or composition 
receptacles and bursting charge. They are designed to be operated by the 
passage of ships, vehicles, or personnel. The term includes Bangalore 
torpedoes.
    Powder cake (powder paste). Substance consisting of nitrocellulose 
impregnated with not more than 60 percent of nitroglycerin or other 
liquid organic nitrates or a mixture of these.
    Powder, smokeless. Substance based on nitrocellulose used as 
propellant. The term includes propellants with a single base 
(nitrocellulose (NC) alone), those with a double base (such as NC and 
nitroglycerin (NG)) and those with a triple base (such as NC/NG/
nitroguanidine). Cast pressed or bag-charges of smokeless powder are 
listed under charges, propelling and charges, propelling for cannon.
    Primers, cap type. Articles consisting of a metal or plastic cap 
containing a small amount of primary explosive mixture that is readily 
ignited by impact. They serve as igniting elements in small arms 
cartridges and in percussion primers for propelling charges.
    Primers, tubular. Articles consisting of a primer for ignition and 
an auxiliary charge of deflagrating explosive, such as black powder, 
used to ignite the propelling charge in a cartridge case for cannon, 
etc.
    Projectiles. Articles, such as a shell or bullet, which are 
projected from a cannon or other artillery gun, rifle, or other small 
arm. They may be inert, with or without tracer, or may contain a 
burster, expelling charge or bursting charge. The term includes: 
projectiles, inert, with tracer; projectiles, with burster or expelling 
charge; and projectiles, with bursting charge.
    Propellant, liquid. Substances consisting of a deflagrating liquid 
explosive, used for propulsion.

[[Page 427]]

    Propellant, solid. Substances consisting of a deflagrating solid 
explosive, used for propulsion.
    Propellants. Deflagrating explosives used for propulsion or for 
reducing the drag of projectiles.
    Release devices, explosive. Articles consisting of a small charge of 
explosive with means of initiation. They sever rods or links to release 
equipment quickly.
    Rocket motors. Articles consisting of a solid, liquid, or hypergolic 
propellant contained in a cylinder fitted with one or more nozzles. They 
are designed to propel a rocket or guided missile. The term includes: 
rocket motors; rocket motors with hypergolic liquids with or without an 
expelling charge; and rocket motors, liquid fuelled.
    Rockets. Articles containing a rocket motor and a payload which may 
be an explosive warhead or other device. The term includes: guided 
missiles; rockets, line-throwing; rockets, liquid fuelled, with bursting 
charge; rockets, with bursting charge; rockets, with expelling charge; 
and rockets, with inert head.
    Signals. Articles consisting of pyrotechnic substances designed to 
produce signals by means of sound, flame, or smoke or any combination 
thereof. The term includes: signal devices, hand; signals, distress 
ship; signals, railway track, explosive; signals, smoke.
    Sounding devices, explosive. Articles consisting of a charge of 
detonating explosive. They are dropped from ships and function when they 
reach a predetermined depth or the sea bed.
    Substance, explosive, very insensitive (Substance, EVI) N.O.S. 
Substances which present a mass explosive hazard but which are so 
insensitive that there is very little probability of initiation, or of 
transition from burning to detonation under normal conditions of 
transport and which have passed test series 5.
    Torpedoes. Articles containing an explosive or non-explosive 
propulsion system and designed to be propelled through water. They may 
contain an inert head or warhead. The term includes: torpedoes, liquid 
fuelled, with inert head; torpedoes, liquid fuelled, with or without 
bursting charge; and torpedoes, with bursting charge.
    Tracers for ammunition. Sealed articles containing pyrotechnic 
substances, designed to reveal the trajectory of a projectile.
    Warheads. Articles containing detonating explosives, designed to be 
fitted to a rocket, guided missile, or torpedo. They may contain a 
burster or expelling charge or bursting charge. The term includes: 
warhead rocket with bursting charge; and warheads, torpedo, with 
bursting charge.
[Amdt. 173-224, 55 FR 52617 Dec. 21, 1990, as amended at 56 FR 66267, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67492, Dec. 29, 1994]



Sec. 173.60  General packaging requirements for explosives.

    (a) Unless otherwise provided in this subpart and in Sec. 173.7(a), 
packaging used for Class 1 (explosives) materials must meet Packing 
Group II requirements. Each packaging used for an explosive must be 
capable of meeting the test requirements of subpart M of part 178 of 
this subchapter, at the specified level of performance, and the 
applicable general packaging requirements of paragraph (b) of this 
section.
    (b) The general requirements for packaging of explosives are as 
follows:
    (1) Nails, staples, and other closure devices, made of metal, having 
no protective covering may not penetrate to the inside of the outer 
packaging unless the inner packaging adequately protects the explosive 
against contact with the metal.
    (2) The closure device of containers for liquid explosives must 
provide double protection against leakage, such as a screw cap secured 
in place with tape.
    (3) Inner packagings, fittings, and cushioning materials, and the 
placing of explosive substances or articles in packages, must be such 
that the explosive substance is prevented from becoming loose in the 
outer packaging during transportation. Metallic components of articles 
must be prevented from making contact with metal packagings. Articles 
containing explosive substances not enclosed in an outer casing must be 
separated from each other in order to prevent friction and impact. 
Padding, trays, partitioning in the inner or outer packaging, molded 
plastics or receptacles may be used for this purpose.

[[Page 428]]

    (4) When the packaging includes water that could freeze during 
transportation, a sufficient amount of anti-freeze, such as denatured 
ethyl alcohol, must be added to the water to prevent freezing. If the 
anti-freeze creates a fire hazard, it may not be used. When a percentage 
of water in the substance is specified, the combined weight of water and 
anti-freeze may be substituted.
    (5) If an article is fitted with its own means of ignition or 
initiation, it must be effectively protected from accidental actuation 
during normal conditions of transportation.
    (6) The entry of explosive substances into the recesses of double-
seamed metal packagings must be prevented.
    (7) The closure device of a metal drum must include a suitable 
gasket; if the closure device includes metal-to-metal screw-threads, the 
ingress of explosive substances into the threading must be prevented.
    (8) Whenever loose explosive substances or the explosive substance 
of an uncased or partly cased article may come into contact with the 
inner surface of metal packagings (1A2, 1B2, 4A, 4B and metal 
receptacles), the metal packaging should be provided with an inner liner 
or coating.
    (9) Packagings must be made of materials compatible with, and 
impermeable to, the explosives contained in the package, so that neither 
interaction between the explosives and the packaging materials, nor 
leakage, causes the explosive to become unsafe in transportation, or the 
hazard division or compatibility group to change (see 
Sec. 173.24(e)(2)).
    (10) An explosive article containing an electrical means of 
initiation that is sensitive to external electromagnetic radiation, must 
have its means of initiation effectively protected from electromagnetic 
radiation sources (for example, radar or radio transmitters) through 
either design of the packaging or of the article, or both.
    (11) Plastic packagings may not be able to generate or accumulate 
sufficient static electricity to cause the packaged explosive substances 
or articles to initiate, ignite or inadvertently function. Metal 
packagings must be compatible with the explosive substance they contain.
    (12) Explosive substances may not be packed in inner or outer 
packagings where the differences in internal and external pressures, due 
to thermal or other effects, could cause an explosion or rupture of the 
package.
    (13) Packagings for water soluble substances must be water 
resistant. Packagings for desensitized or phlegmatized substances must 
be closed to prevent changes in concentration during transport. When 
containing less alcohol, water, or phlegmatizer than specified in its 
proper shipping description, the substance is a ``forbidden'' material.
[Amdt. 173-260, 62 FR 24719, May 6, 1997]



Sec. 173.61  Mixed packaging requirements.

    (a) Unless specifically authorized in this subchapter, an explosive 
may not be packed in the same outside packaging with any other material, 
unless packaged by the DOD or DOE in accordance with Sec. 173.7(a) of 
this subchapter.
    (b) Hardware necessary for assembly of explosive articles at the 
point-of-use may be packed in the same outside packaging with the 
explosive articles. The hardware must be securely packed in a separate 
inside packaging. Sufficient cushioning materials must be used to ensure 
that all inside packagings are securely packed in the outside packaging.
    (c) The following explosives may not be packed together with other 
Class 1 explosives: UN 0029, UN 0030, UN 0073, UN 0106, UN 0107, UN 
0255, UN 0257, UN 0267, UN 0360, UN 0361, UN 0364, UN 0365, UN 0366, UN 
0367, UN 0408, UN 0409, UN 0410, UN 0455, UN 0456, and NA 0350. These 
explosives may be mix-packed with each other in accordance with the 
compatibility requirements prescribed in paragraph (e).
    (d) Division 1.1 and 1.2 explosives may not be packed with the 
following explosives: UN 0333, UN 0334, UN 0335, UN 0336, and UN 0337.
    (e) Except as prescribed in paragraphs (c) and (d) of this section, 
different explosives may be packed in one outside packaging in 
accordance with

[[Page 429]]

the following compatibility requirements:
    (1) Explosives of the same compatibility group and same division 
number may be packed together.
    (2) Explosives of the same compatibility group or authorized 
combination of compatibility group but different division number may be 
packed together, provided that the whole package is treated as though 
its entire contents were comprised of the lower division number. For 
example, a mixed package of Division 1.2 explosives (Class A explosive) 
and Division 1.4 explosives (Class C explosive), compatibility group D, 
must be treated as 1.2D explosives. However, when 1.5D explosives 
(blasting agents) are packed together with 1.2D explosives (Class A 
explosives), the whole package must be treated as 1.1D explosives.
    (3) Explosives of compatibility group S may be packed with 
explosives of all other compatibility group except A and L.
    (4) Explosives of compatibility group L shall only be packed with an 
identical explosive.
    (5) Explosives articles of compatibility groups C, D, or E may be 
packed together and the entire package shall be treated as belonging to 
compatibility group E.
    (6) Explosives articles of compatibility groups C, D, E, or N may be 
packed together and the entire package shall be treated as belonging to 
compatibility group D.
    (7) Explosives substances of compatibility groups C and D may be 
packaged together and the entire package shall be treated as belonging 
to compatibility group D.
[Amdt. 173-224, 55 FR 52617 Dec. 21, 1990, as amended at 56 FR 66267, 
Dec. 20, 1991]



Sec. 173.62  Specific packaging requirements for explosives.

    (a) Except as provided in paragraph (e) of this section, when the 
Sec. 172.101 Table specifies that an explosive must be packaged in 
accordance with this section, only non-bulk packagings which conform to 
the provisions of paragraphs (b), (c) and (d) of this section and the 
applicable requirements in Secs. 173.60 and 173.61 may be used unless 
otherwise approved by the Associate Administrator. Intermediate bulk 
packagings may be used for explosives assigned to Packing Instruction 
117 in paragraph (b) of this section. Intermediate bulk packagings must 
conform with the requirements of this subchapter.
    (b) Explosives Table. The Explosives Table specifies the Packing 
Instructions assigned to each explosive. Explosives are identified in 
the first column in numerical sequence by their identification number 
(ID #), which is listed in column 4 of the Sec. 172.101 Table, of this 
subchapter. The second column of the Explosives Table specifies the 
Packing Instruction (PI) which must be used for packaging the explosive. 
The Explosives Packing Method Table in paragraph (c) of this section 
defines the methods of packaging. The Packing Instructions are 
identified using a 3 digit designation. The Packing Instruction prefixed 
by the letters ``US'' is particular to the United States and not found 
in applicable international regulations.

                            Explosives Table                            
------------------------------------------------------------------------
                 ID#                                  PI                
------------------------------------------------------------------------
UN0004..............................  112                               
UN0005..............................  130                               
UN0006..............................  130                               
UN0007..............................  130                               
UN0009..............................  130                               
UN0010..............................  130                               
UN0012..............................  130                               
UN0014..............................  130                               
UN0015..............................  130                               
UN0016..............................  130                               
UN0018..............................  130                               
UN0019..............................  130                               
UN0020..............................  101                               
UN0021..............................  101                               
UN0027..............................  113                               
UN0028..............................  113                               
UN0029..............................  131                               
UN0030..............................  131                               
UN0033..............................  130                               
UN0034..............................  130                               
UN0035..............................  130                               
UN0037..............................  130                               
UN0038..............................  130                               
UN0039..............................  130                               
UN0042..............................  132                               
UN0043..............................  133                               
UN0044..............................  133                               
UN0048..............................  130                               
UN0049..............................  135                               
UN0050..............................  135                               
UN0054..............................  135                               
UN0055..............................  136                               
UN0056..............................  130                               
UN0059..............................  137                               
UN0060..............................  132                               
UN0065..............................  139                               

[[Page 430]]

                                                                        
UN0066..............................  140                               
UN0070..............................  134                               
UN0072..............................  112(a)                            
UN0073..............................  133                               
UN0074..............................  110(a) or 110(b)                  
UN0075..............................  115                               
UN0076..............................  112                               
UN0077..............................  114(a) or 114(b)                  
UN0078..............................  112                               
UN0079..............................  112(b) or 112(c)                  
UN0081..............................  116                               
UN0082..............................  116 or 117                        
UN0083..............................  116                               
UN0084..............................  116                               
UN0092..............................  135                               
UN0093..............................  135                               
UN0094..............................  113                               
UN0099..............................  134                               
UN0101..............................  140                               
UN0102..............................  139                               
UN0103..............................  140                               
UN0104..............................  139                               
UN0105..............................  140                               
UN0106..............................  141                               
UN0107..............................  141                               
UN0110..............................  141                               
UN0113..............................  110(a) or 110(b)                  
UN0114..............................  110(a) or 110(b)                  
UN0118..............................  112                               
UN0121..............................  142                               
UN0124..............................  US1                               
UN0129..............................  110(a) or 110(b)                  
UN0130..............................  110(a) or 110(b)                  
UN0131..............................  142                               
UN0132..............................  114(b)                            
UN0133..............................  112(a)                            
UN0135..............................  110(a) or 110(b)                  
UN0136..............................  130                               
UN0137..............................  130                               
UN0138..............................  130                               
UN0143..............................  115                               
UN0144..............................  115                               
UN0146..............................  112                               
UN0147..............................  112(b)                            
UN0150..............................  112(a) or 112(b)                  
UN0151..............................  112                               
UN0153..............................  112(b) or 112(c)                  
UN0154..............................  112                               
UN0155..............................  112(b) or 112(c)                  
UN0159..............................  111                               
UN0160..............................  114(b)                            
UN0161..............................  114(b)                            
UN0167..............................  130                               
UN0168..............................  130                               
UN0169..............................  130                               
UN0171..............................  130                               
UN0173..............................  134                               
UN0174..............................  134                               
UN0180..............................  130                               
UN0181..............................  130                               
UN0182..............................  130                               
UN0183..............................  130                               
UN0186..............................  130                               
UN0190..............................  101                               
UN0191..............................  135                               
UN0192..............................  135                               
UN0193..............................  135                               
UN0194..............................  135                               
UN0195..............................  135                               
UN0196..............................  135                               
UN0197..............................  135                               
UN0204..............................  134                               
UN0207..............................  112(b) or 112(c)                  
UN0208..............................  112(b) or 112(c)                  
UN0209..............................  112                               
UN0212..............................  133                               
UN0213..............................  112(b) or 112(c)                  
UN0214..............................  112                               
UN0215..............................  112                               
UN0216..............................  112(b) or 112(c)                  
UN0217..............................  112(b) or 112(c)                  
UN0218..............................  112(b) or 112(c)                  
UN0219..............................  112                               
UN0220..............................  112                               
UN0221..............................  130                               
UN0222..............................  112(b) or 112(c)                  
UN0224..............................  110(a) or 110(b)                  
UN0225..............................  133                               
UN0226..............................  112(a)                            
UN0234..............................  114(a) or 114(b)                  
UN0235..............................  114(a) or 114(b)                  
UN0236..............................  114(a) or 114(b)                  
UN0237..............................  138                               
UN0238..............................  130                               
UN0240..............................  130                               
UN0241..............................  116 or 117                        
UN0242..............................  130                               
UN0243..............................  130                               
UN0244..............................  130                               
UN0245..............................  130                               
UN0246..............................  130                               
UN0247..............................  101                               
UN0248..............................  144                               
UN0249..............................  144                               
UN0250..............................  101                               
UN0254..............................  130                               
UN0255..............................  131                               
UN0257..............................  141                               
UN0266..............................  112                               
UN0267..............................  131                               
UN0268..............................  133                               
UN0271..............................  143                               
UN0272..............................  143                               
UN0275..............................  134                               
UN0276..............................  134                               
UN0277..............................  134                               
UN0278..............................  134                               
UN0279..............................  130                               
UN0280..............................  130                               
UN0281..............................  130                               
UN0282..............................  112                               
UN0283..............................  132                               
UN0284..............................  141                               
UN0285..............................  141                               
UN0286..............................  130                               
UN0287..............................  130                               
UN0288..............................  138                               
UN0289..............................  139                               
UN0290..............................  139                               
UN0291..............................  130                               
UN0292..............................  141                               
UN0293..............................  141                               
UN0294..............................  130                               
UN0295..............................  130                               
UN0296..............................  134                               
UN0297..............................  130                               
UN0299..............................  130                               
UN0300..............................  130                               
UN0301..............................  130                               
UN0303..............................  130                               
UN0305..............................  113                               
UN0306..............................  133                               
UN0312..............................  135                               
UN0313..............................  135                               

[[Page 431]]

                                                                        
UN0314..............................  142                               
UN0315..............................  142                               
UN0316..............................  141                               
UN0317..............................  141                               
UN0318..............................  141                               
UN0319..............................  133                               
UN0320..............................  133                               
UN0321..............................  130                               
UN0322..............................  101                               
UN0323..............................  134                               
UN0324..............................  130                               
UN0325..............................  142                               
UN0326..............................  130                               
UN0327..............................  130                               
UN0328..............................  130                               
UN0329..............................  130                               
UN0330..............................  130                               
UN0331..............................  116 or 117                        
UN0332..............................  116 or 117                        
UN0333..............................  135                               
UN0334..............................  135                               
UN0335..............................  135                               
UN0336..............................  135                               
UN0337..............................  135                               
UN0338..............................  130                               
UN0339..............................  130                               
UN0340..............................  112(a) or 112(b)                  
UN0341..............................  112(b)                            
UN0342..............................  114(a)                            
UN0343..............................  111                               
UN0344..............................  130                               
UN0345..............................  130                               
UN0346..............................  130                               
UN0347..............................  130                               
UN0348..............................  130                               
UN0349..............................  101                               
UN0350..............................  101                               
UN0351..............................  101                               
UN0352..............................  101                               
UN0353..............................  101                               
UN0354..............................  101                               
UN0355..............................  101                               
UN0356..............................  101                               
UN0357..............................  101                               
UN0358..............................  101                               
UN0359..............................  101                               
UN0360..............................  131                               
UN0361..............................  131                               
UN0362..............................  130                               
UN0363..............................  130                               
UN0364..............................  133                               
UN0365..............................  133                               
UN0366..............................  133                               
UN0367..............................  141                               
UN0368..............................  141                               
UN0369..............................  130                               
UN0370..............................  130                               
UN0371..............................  130                               
UN0372..............................  141                               
UN0373..............................  135                               
UN0374..............................  134                               
UN0375..............................  134                               
UN0376..............................  133                               
UN0377..............................  133                               
UN0378..............................  133                               
UN0379..............................  136                               
UN0380..............................  101                               
UN0381..............................  134                               
UN0382..............................  101                               
UN0383..............................  101                               
UN0384..............................  101                               
UN0385..............................  112(b) or 112(c)                  
UN0386..............................  112(b) or 112(c)                  
UN0387..............................  112(b) or 112(c)                  
UN0388..............................  112(b) or 112(c)                  
UN0389..............................  112(b) or 112(c)                  
UN0390..............................  112(b) or 112(c)                  
UN0391..............................  112(a)                            
UN0392..............................  112(b) or 112(c)                  
UN0393..............................  112(b)                            
UN0394..............................  112(a)                            
UN0395..............................  101                               
UN0396..............................  101                               
UN0397..............................  101                               
UN0398..............................  101                               
UN0399..............................  101                               
UN0400..............................  101                               
UN0401..............................  112                               
UN0402..............................  112(b) or 112(c)                  
UN0403..............................  135                               
UN0404..............................  135                               
UN0405..............................  135                               
UN0406..............................  114(b)                            
UN0407..............................  114(b)                            
UN0408..............................  141                               
UN0409..............................  141                               
UN0410..............................  141                               
UN0411..............................  112(b) or 112(c)                  
UN0412..............................  130                               
UN0413..............................  130                               
UN0414..............................  130                               
UN0415..............................  143                               
UN0417..............................  130                               
UN0418..............................  135                               
UN0419..............................  135                               
UN0420..............................  135                               
UN0421..............................  135                               
UN0424..............................  130                               
UN0425..............................  130                               
UN0426..............................  130                               
UN0427..............................  130                               
UN0428..............................  135                               
UN0429..............................  135                               
UN0430..............................  135                               
UN0431..............................  135                               
UN0432..............................  135                               
UN0433..............................  111                               
UN0434..............................  130                               
UN0435..............................  130                               
UN0436..............................  130                               
UN0437..............................  130                               
UN0438..............................  130                               
UN0439..............................  137                               
UN0440..............................  137                               
UN0441..............................  137                               
UN0442..............................  137                               
UN0443..............................  137                               
UN0444..............................  137                               
UN0445..............................  137                               
UN0446..............................  136                               
UN0447..............................  136                               
UN0448..............................  114(b)                            
UN0449..............................  101                               
UN0450..............................  101                               
UN0451..............................  130                               
UN0452..............................  141                               
UN0453..............................  130                               
UN0454..............................  142                               
UN0455..............................  131                               
UN0456..............................  131                               
UN0457..............................  130                               
UN0458..............................  130                               
UN0459..............................  130                               
UN0460..............................  130                               

[[Page 432]]

                                                                        
UN0461..............................  101                               
UN0462..............................  101                               
UN0463..............................  101                               
UN0464..............................  101                               
UN0465..............................  101                               
UN0466..............................  101                               
UN0467..............................  101                               
UN0468..............................  101                               
UN0469..............................  101                               
UN0470..............................  101                               
UN0471..............................  101                               
UN0472..............................  101                               
UN0473..............................  101                               
UN0474..............................  101                               
UN0475..............................  101                               
UN0476..............................  101                               
UN0477..............................  101                               
UN0478..............................  101                               
UN0479..............................  101                               
UN0480..............................  101                               
UN0481..............................  101                               
UN0482..............................  101                               
UN0483..............................  112(b) or 112(c)                  
UN0484..............................  112(b) or 112(c)                  
UN0486..............................  101                               
UN0487..............................  135                               
UN0488..............................  130                               
UN0489..............................  112(b) or 112(c)                  
UN0490..............................  112(b) or 112(c)                  
UN0491..............................  143                               
UN0492..............................  135                               
UN0493..............................  135                               
UN0494..............................  US1                               
UN0495..............................  115                               
UN0496..............................  112(b) or 112(c)                  
UN0497..............................  115                               
UN0498..............................  114(b)                            
UN0499..............................  114(b)                            
UN0500..............................  131                               
NA0124..............................  US1                               
NA0276..............................  134                               
NA0323..............................  134                               
NA0331..............................  116 or 117                        
NA0337..............................  135                               
NA0349..............................  133                               
NA0494..............................  US1                               
------------------------------------------------------------------------

    (c) Explosives Packing Instruction Table. Explosives must be 
packaged in accordance with the following table:
    (1) The first column lists, in alphanumeric sequence, the packing 
methods prescribed for explosives in the Explosives Table of paragraph 
(b) of this section.
    (2) The second column specifies the inner packagings that are 
required. If inner packagings are not required, a notation of ``Not 
necessary'' appears in the column. The term ``Not necessary'' means that 
a suitable inner packaging may be used but is not required.
    (3) The third column specifies the intermediate packagings that are 
required. If intermediate packagings are not required, a notation of 
``Not necessary'' appears in the column. The term ``Not necessary'' 
means that a suitable intermediate packaging may be used but is not 
required.
    (4) The fourth column specifies the outer packagings which are 
required. If inner packagings and/or intermediate packagings are 
specified in the second and third columns, then the packaging specified 
in the fourth column must be used as the outer packaging of a 
combination packaging; otherwise it may be used as a single packaging.
    (5) Packing Instruction 101 may be used for any explosive substance 
or article if an equivalent level of safety is shown to be maintained 
subject to the approval of the Associate Administrator for Hazardous 
Materials Safety.

[[Page 433]]



                                                                Table of Packing Methods                                                                
--------------------------------------------------------------------------------------------------------------------------------------------------------
       Packing instruction                    Inner packagings                     Intermediate packagings                    Outer packagings          
--------------------------------------------------------------------------------------------------------------------------------------------------------
101..............................                                                                                                                       
(2)This Packing Instruction may                                                                                                                         
 be used as an alternative to a                                                                                                                         
 specifically assigned packing                                                                                                                          
 method with the approval of the                                                                                                                        
 Associate Administrator for                                                                                                                            
 Hazardous Materials Safety prior                                                                                                                       
 to transportation. When this                                                                                                                           
 packing instruction is used, the                                                                                                                       
 following must be marked on the                                                                                                                        
 shipping documents:                                                                                                                                    
``Packaging approved by the                                                                                                                             
 competent authority of the                                                                                                                             
 United States of America                                                                                                                               
 (USA)''.                                                                                                                                               
PARTICULAR PACKING REQUIREMENTS                                                                                                                         
 OR EXCEPTIONS:                                                                                                                                         
1. Samples of new or existing                                                                                                                           
 explosive substances or articles                                                                                                                       
 may be transported as directed                                                                                                                         
 by the Associate Administrator                                                                                                                         
 for Hazardous Materials Safety                                                                                                                         
 for purposes including: testing,                                                                                                                       
 classification, research and                                                                                                                           
 development, quality control, or                                                                                                                       
 as a commercial sample.                                                                                                                                
 Explosive samples which are                                                                                                                            
 wetted or desensitized must be                                                                                                                         
 limited to 25 kg. Explosive                                                                                                                            
 samples which are not wetted or                                                                                                                        
 desensitized must be limited to                                                                                                                        
 10 kg in small packages as                                                                                                                             
 specified by the Associate                                                                                                                             
 Administrator for Hazardous                                                                                                                            
 Materials Safety                                                                                                                                       
110(a)...........................  Bags..................................  Bags..................................  Drums.                               
 PARTICULAR PACKING REQUIREMENTS     plastics............................    plastics............................    steel, removable head (1A2).       
 OR EXCEPTIONS:                    textile, plastic coated or lined......  textile, plastic coated or lined......  plastics, removable head (1H2)       
1. The Intermediate packagings     rubber................................  rubber................................                                       
 must be filled with water         textile, rubberized...................  textile, rubberized...................                                       
 saturated material such as an     textile...............................  Receptacles...........................                                       
 anti-freeze solution or wetted                                            plastics..............................                                       
 cushioning                                                                metal.................................                                       
2. Outer packagings must be                                                                                                                             
 filled with water saturated                                                                                                                            
 material such as an anti-freeze                                                                                                                        
 solution or wetted cushioning.                                                                                                                         
 Outer packagings must be                                                                                                                               
 constructed and sealed to                                                                                                                              
 prevent evaporation of the                                                                                                                             
 wetting solution, except when                                                                                                                          
 0224 is being carried dry                                                                                                                              
110(b)...........................  Bags..................................  Dividing partitions...................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS      rubber, conductive..................    metal...............................    natural wood, sift-proof wall      
 OR EXCEPTIONS                     plastics, conductive..................  wood..................................     (4C2).                            
For UN 0074, 0113, 0114, 0129,     Receptacles...........................  plastics..............................  plywood (4D).                        
 0130, 0135 and 0224, the          metal.................................  fibreboard............................  reconstituted wood (4F).             
 following conditions must be      wood..................................                                                                               
 satisfied:                        rubber, conductive....................                                                                               
a. inner packagings must not       plastics, conductive..................                                                                               
 contain more than 50 g of                                                                                                                              
 explosive substance (quantity                                                                                                                          
 corresponding to dry substance);                                                                                                                       
b. each inner packaging must be                                                                                                                         
 separated from other inner                                                                                                                             
 packagings by dividing                                                                                                                                 
 partitions; and                                                                                                                                        
c. the outer packaging must not                                                                                                                         
 be partitioned with more than 25                                                                                                                       
 compartments                                                                                                                                           

[[Page 434]]

                                                                                                                                                        
111..............................  Bags..................................  Not necessary.........................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS    paper, waterproofed...................                                          steel (4A).                          
 OR EXCEPTIONS:.                   plastics..............................                                          aluminium (4B).                      
For UN 0159, inner packagings are  textile, rubberized...................                                          natural wood, ordinary (4C1).        
 not required when metal (1A2 or   Sheets................................                                          natural wood, sift proof (4C2).      
 1B2) or plastics (1H2) drums are  plastics..............................                                          plywood (4D).                        
 used as outer packagings.         textile, rubberized...................                                          reconstituted wood (4F).             
                                                                                                                   fibreboard (4G).                     
                                                                                                                   plastics, expanded (4H1).            
                                                                                                                   plastics, solid (4H2).               
                                                                                                                   Drums                                
                                                                                                                   steel, removable head (1A2).         
                                                                                                                   aluminum, removable head (1B2).      
                                                                                                                   plywood (1D).                        
                                                                                                                   fibreboard (1G).                     
                                                                                                                   plastics, removable head (1H2).      
112(a) This packing instruction    Bags..................................  Bags..................................  Boxes.                               
 applies to wetted solids.                                                                                                                              
PARTICULAR PACKING REQUIREMENTS      paper, multiwall, water resistant...    plastics............................    steel (4A).                        
 OR EXCEPTIONS:                    plastics..............................  textile, plastic coated or lined......  aluminium (4B).                      
1. For UN Nos. 0004, 0076, 0078,   textile...............................  Receptacles...........................  natural wood, ordinary (4C1).        
 0154, 0219 and 0394, packagings   textile, rubberized...................  metal.................................  natural wood, sift proof (4C2).      
 must be lead free                 woven plastics........................  plastics..............................  plywood (4D).                        
2. Intermediate packagings are     Receptacles...........................                                          reconstituted wood (4F).             
 not required if leakproof drums   metal.................................                                          fibreboard (4G).                     
 are used as the outer packaging   plastics..............................                                          plastics, expanded (4H1).            
3. For UN 0072 and UN 0226,                                                                                        plastics, solid (4H2).               
 intermediate packagings are not                                                                                   Drums                                
 required                                                                                                          steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     
                                                                                                                   fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      

[[Page 435]]

                                                                                                                                                        
112(b) This packing instruction    Bags..................................  Bags (for UN 0150 only)...............  Bags.                                
 applies to dry solids other than  paper, Kraft..........................  plastics..............................  woven plastics sift-proof (5H2/3).   
 powders.                          paper, multiwall, water resistant.....  textile, plastic coated or lined......  plastics, film (5H4).                
PARTICULAR PACKING REQUIREMENTS    plastics..............................                                          textile, sift-proof (5L2).           
 OR EXCEPTIONS:.                   textile...............................                                          textile, water resistant (5L3).      
1. For UN 0004, 0076, 0078, 0154,  textile, rubberized plastics..........                                          paper, multiwall, water resistant    
 0216, 0219 and 0386, packagings   woven plastics........................                                           (5M2).                              
 must be lead free.                                                                                                Boxes                                
2. For UN 0209, bags, sift-proof                                                                                   steel (4A).                          
 (5H2) are recommended for flake                                                                                   aluminium (4B).                      
 or prilled TNT in the dry state                                                                                   natural wood, ordinary (4C1).        
 and a maximum net mass of 30 kg..                                                                                 natural wood, sift proof (4C2).      
3. For UN 0222 and UN 0223, inner                                                                                  plywood (4D)                         
 packagings are not required.                                                                                      reconstituted wood (4F).             
                                                                                                                   fibreboard (4G).                     
                                                                                                                   plastics, expanded (4H1).            
                                                                                                                   plastics, solid (4H2).               
                                                                                                                   Drums                                
                                                                                                                   steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     
                                                                                                                   fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      
112(c)  This packing instruction   Bags..................................  Bags..................................  Boxes.                               
 applies to solid dry powders.                                                                                                                          
PARTICULAR PACKING REQUIREMENTS      paper, multiwall, water resistant...    paper, multiwall, water resistant       steel (4A).                        
 OR EXCEPTIONS:                    plastics..............................     with inner lining.                   natural wood,                        
1. For UN 0004, 0076, 0078, 0154,  woven plastics........................  plastics..............................  ordinary (4C1).                      
 0216, 0219 and 0386, packagings   Receptacles...........................  Receptacles...........................  natural wood,                        
 must be lead free                 fibreboard............................  metal.................................  sift proof (4C2).                    
2. For UN 0209, bags, sift-proof   metal.................................  plastics..............................  plywood (4D).                        
 (5H2) are recommended for flake   plastics..............................                                          reconstituted wood (4F).             
 or prilled TNT in the dry state.  wood..................................                                          fibreboard (4G).                     
 Bags must not exceed a maximum                                                                                    plastics, solid (4H2).               
 net mass of 30 kg.                                                                                                Drums.                               
3. Inner packagings are not                                                                                        steel, removable head (1A2).         
 required if drums are used as                                                                                     aluminium, removable head (1B2).     
 the outer packaging.                                                                                              fibre (1G).                          
4. At least one of the packagings                                                                                                                       
 must be sift-proof                                                                                                                                     
113..............................  Bags..................................  Not necessary.........................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS      paper...............................                                            steel (4A).                        
 OR EXCEPTIONS:                    plastics..............................                                          natural wood, ordinary (4C1).        
1. For UN 0094 and UN 0305, no     textile, rubberized...................                                          natural wood, sift-proof walls (4C2).
 more than 50 g of substance must  Receptacles...........................                                          plywood (4D).                        
 be packed in an inner packaging   fibreboard............................                                          reconstituted wood (4F).             
2. For UN 0027, inner packagings   metal.................................                                          fibreboard (4G).                     
 are not necessary when drums are  plastics..............................                                          plastics, solid (4H2).               
 used as the outer packaging       wood..................................                                          Drums                                
3. At least one of the packagings  Sheets................................                                          steel, removable head (1A2).         
 must be sift- proof               paper, kraft..........................                                          aluminium, removable head (1B2).     
4. Sheets must only be used for    paper, waxed..........................                                          fibre (1G).                          
 UN 0028                                                                                                                                                

[[Page 436]]

                                                                                                                                                        
114(a) This packing instruction    Bags..................................  Bags..................................  Boxes.                               
 applies to wetted solids.         plastics..............................  plastics..............................  steel (4A).                          
PARTICULAR PACKING REQUIREMENTS    textile...............................  textile, plastic coated or lined......  natural wood, ordinary (4C1).        
 OR EXCEPTIONS:.                   woven plastics........................  Receptacles...........................  natural wood, sift proof walls (4C2).
1. For UN 0077, 0234, 0235 and     Receptacles...........................  metal.................................  plywood (4D).                        
 0236, packagings must be lead     metal.................................  plastics..............................  reconstituted wood (4F).             
 free.                             plastics..............................                                          fibreboard (4G).                     
2. For UN 0342, inner packagings                                                                                   plastics, solid (4H2).               
 are not required when metal (1A2                                                                                  Drums.                               
 or 1B2) or plastics (1H2) drums                                                                                   steel, removable head (1A2).         
 are used as outer packagings.                                                                                     aluminium, removable head (1B2).     
3. Intermediate packagings are                                                                                     plywood (1D).                        
 not required if leakproof                                                                                         fibre (1G).                          
 removable head drums are used as                                                                                  plastics,                            
 the outer packaging.                                                                                              removable head (1H2).                
114(b) This packing instruction    Bags..................................  Not necessary.........................  Boxes.                               
 applies to dry solids                                                                                                                                  
PARTICULAR PACKING REQUIREMENTS      paper, kraft........................  natural wood, ordinary (4C1).                                                
 OR EXCEPTIONS:                    plastics..............................  natural wood, sift proof walls (4C2)..                                       
1. For UN 0077, 0132, 0234, 0235   textile, sift-proof...................  plywood (4D)..........................                                       
 and 0236, packagings must be      woven plastics, sift-proof............  reconstituted wood (4F)...............                                       
 lead free                         Receptacles...........................  fibreboard (4G).......................                                       
2. For UN 0160 and UN 0161, when   fibreboard............................  Drums.................................                                       
 metal drums (1A2 or 1B2) are      metal.................................  steel, removable head (1A2)...........                                       
 used as the outer packaging,      paper.................................  aluminium, removable head (1B2).......                                       
 metal packagings must be so       plastics..............................  plywood (1D)..........................                                       
 constructed that the risk of      woven plastics, sift-proof............  fibre (1G)............................                                       
 explosion, by reason of                                                   plastics, removable head (1H2)........                                       
 increased internal pressure from                                                                                                                       
 internal or external causes is                                                                                                                         
 prevented                                                                                                                                              
3. For UN 0160 and UN 0161, inner                                                                                                                       
 packagings are not required if                                                                                                                         
 drums are used as the outer                                                                                                                            
 packaging                                                                                                                                              
115..............................  Receptacles...........................  Bags..................................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS    metal                                   plastics in metal receptacles             natural wood, ordinary (4C1).      
 OR EXCEPTIONS:                    plastics..............................  Drums.................................  natural wood, sift proof walls (4C2).
1. For liquid explosives, inner                                            metal.................................  plywood (4D).                        
 packagings must be surrounded                                                                                     reconstituted wood (4F).             
 with non-combustible absorbent                                                                                    fibreboard (4G).                     
 cushioning material in                                                                                            Drums.                               
 sufficient quantity to absorb                                                                                     steel, removable head (1A2).         
 the entire liquid content. Metal                                                                                  aluminium, removable head (1B2).     
 receptacles should be cushioned                                                                                   plywood (1D).                        
 from each other. The net mass of                                                                                  fibre (1G).                          
 explosive per package may not                                                                                     Specification MC-200 containers may  
 exceed 30 kg when boxes are used                                                                                   be used for transport by motor      
 as outer packaging. The net                                                                                        vehicle.                            
 volume of explosive in each                                                                                                                            
 package other than boxes must                                                                                                                          
 not exceed 120 litres                                                                                                                                  
2. For UN 0075, 0143, 0495 and                                                                                                                          
 0497 when boxes are used as the                                                                                                                        
 outer packaging, inner                                                                                                                                 
 packagings must have taped screw                                                                                                                       
 cap closures and be not more                                                                                                                           
 than 5 litres capacity each. A                                                                                                                         
 composite packaging consisting                                                                                                                         
 of a plastic receptacle in a                                                                                                                           
 metal drum (6HA1) may be used in                                                                                                                       
 lieu of combination packagings.                                                                                                                        
 Liquid substances must not                                                                                                                             
 freeze at temperatures above -15                                                                                                                       
 deg.C (+5 deg.F)                                                                                                                                       
3. For UN 0144, intermediate                                                                                                                            
 packagings are not necessary.                                                                                                                          
116..............................  Bags..................................  Not necessary.........................  Bags.                                

[[Page 437]]

                                                                                                                                                        
PARTICULAR PACKING REQUIREMENTS    paper, water and oil                                                              woven plastics (5H1/2/3).          
 OR EXCEPTIONS:                    resistant.............................                                          paper, mulitwall, water resistant    
1. For UN 0082, 0241, 0331 and     plastics..............................                                           (5M2).                              
 0332, inner packagings are not    texitile, plasic coated or............                                          plastics, film (5H4).                
 necessary if leakproof removable  lined.................................                                          textile, sift-proof (5L2).           
 head drums are used as the outer  woven plasics, sift-proof.............                                          textile, water resistant (5L3).      
 packaging                         Receptacles...........................                                          Boxes.                               
2. For UN 0082, 0241, 0331 and     fibreboard, water resistant...........                                          steel (4A).                          
 0332, inner packagings are not    metal.................................                                          aluminium (4B).                      
 required when the explosive is    plastics..............................                                          wood, natural, ordinary (4C1).       
 contained in a material           wood, sift-proof......................                                          natural wood, sift proof walls (4C2).
 impervious to liquid              Sheets................................                                          plywood (4D).                        
3. For UN 0081, inner packagings   paper, water resistant................                                          reconstituted wood (4F).             
 are not required when contained   paper, waxed..........................                                          fibreboard (4G).                     
 in rigid plastic which is         plastics..............................                                          plastics, solid (4H2).               
 impervious to nitric esters                                                                                       Drums.                               
4. For UN 0331, inner packagings                                                                                   steel, removable head (1A2).         
 are not required when bags                                                                                        aluminium, removable head (1B2).     
 (5H2), (5H3) or (5H4) are used                                                                                    fibre (1G).                          
 as outer packagings                                                                                               plastics, removable head (1H2).      
5. Bags (5H2 or 5H3) must be used                                                                                  Jerricans.                           
 only for UN 0082, 0241, 0331 and                                                                                  steel, removable head (3A2).         
 0332                                                                                                              plastics, removable head (3H2).      
6. For UN 0081, bags must not be                                                                                                                        
 used as outer packagings                                                                                                                               
117..............................  Not necessary.........................  Not necessary.........................  IBCs.                                
PARTICULAR PACKING REQUIREMENTS                                                                                      metal (11A), (11B), (11N), (21A),  
 OR EXCEPTIONS:                                                                                                       (21B), (21N), (31A), (31B), (31N).
1. This packing instruction may                                                                                    flexible (13H2), (13H3), (13H4),     
 only be used for explosives of                                                                                     (13L2), (13L3), (13L4), (13M2).     
 0082 when they are mixtures of                                                                                    rigid plastics (11H1), (11H2),       
 ammonium nitrate or other                                                                                          (21H1), (21H2), (31H1), (31H2).     
 inorganic nitrates with other                                                                                     composite (11HZ1), (11HZ2), (21HZ1), 
 combustible substances which are                                                                                   (21HZ2), (31HZ1), (31HZ2).          
 not explosive ingredients. Such                                                                                                                        
 explosives must not contain                                                                                                                            
 nitroglycerin, similar liquid                                                                                                                          
 organic nitrates, liquid or                                                                                                                            
 solid nitrocarbons, or                                                                                                                                 
 chlorates.                                                                                                                                             
2. This packing instruction may                                                                                                                         
 only be used for explosives of                                                                                                                         
 UN 0241 which consist of water                                                                                                                         
 as an essential ingredient and                                                                                                                         
 high proportions of ammonium                                                                                                                           
 nitrate or other oxidizers, some                                                                                                                       
 or all of which are in solution.                                                                                                                       
 The other constituents may                                                                                                                             
 include hydrocarbons or                                                                                                                                
 aluminium powder, but must not                                                                                                                         
 include nitro-derivatives such                                                                                                                         
 as trinitrotoluene.                                                                                                                                    
3. Metal IBCs must not be used                                                                                                                          
 for UN 0082 and 0241.                                                                                                                                  
4. Flexible IBCs may only be used                                                                                                                       
 for solids.                                                                                                                                            
130..............................  Not necessary.........................  Not necessary.........................  Boxes.                               

[[Page 438]]

                                                                                                                                                        
PARTICULAR PACKING REQUIREMENTS                                                                                      steel (4A).                        
 OR EXCEPTIONS:                                                                                                    aluminium (4B).                      
1. The following applies to UN                                                                                     wood natural, ordinary (4C1).        
 0006, 0009, 0010, 0015, 0016,                                                                                     natural wood, sift proof walls (4C2).
 0018, 0019, 0034, 0035, 0038,                                                                                     plywood (4D).                        
 0039, 0048, 0056, 0137, 0138,                                                                                     reconstituted wood (4F).             
 0168, 0169, 0171, 0181, 0182,                                                                                     fibreboard (4G).                     
 0183, 0186, 0221, 0238, 0243,                                                                                     plastics, expanded (4H1).            
 0244, 0245, 0246, 0254, 0280,                                                                                     plastics, solid (4H2).               
 0281, 0286, 0287, 0297, 0299,                                                                                     Drums.                               
 0300, 0301, 0303, 0321, 0328,                                                                                     steel, removable head (1A2).         
 0329, 0344, 0345 0346, 0347,                                                                                      aluminium, removable head (1B2).     
 0362, 0363, 0370, 0412, 0424,                                                                                     fibre (1G).                          
 0425, 0434, 0435, 0436, 0437,                                                                                     plastics, removable head (1H2).      
 0438, 0451, 0459 and 0488. Large                                                                                                                       
 and robust explosives articles,                                                                                                                        
 normally intended for military                                                                                                                         
 use, without their means of                                                                                                                            
 initiation or with their means                                                                                                                         
 of initiation containing at                                                                                                                            
 least two effective protective                                                                                                                         
 features, may be carried                                                                                                                               
 unpackaged. When such articles                                                                                                                         
 have propelling charges or are                                                                                                                         
 self-propelled, their ignition                                                                                                                         
 systems must be protected                                                                                                                              
 against stimuli encountered                                                                                                                            
 during normal conditions of                                                                                                                            
 transport. A negative result in                                                                                                                        
 Test Series 4 on an unpackaged                                                                                                                         
 article indicates that the                                                                                                                             
 article can be considered for                                                                                                                          
 transport unpackaged. Such                                                                                                                             
 unpackaged articles may be fixed                                                                                                                       
 to cradles or contained in                                                                                                                             
 crates or other suitable                                                                                                                               
 handling devices.                                                                                                                                      
131..............................  Bags..................................  Not necessary.........................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS    paper                                                                             steel (4A).                        
 OR EXCEPTIONS:                      plastics............................                                          aluminium (4B).                      
1. For UN 0029, 0267 and 0455,       Receptacles.........................                                          wood, natural, ordinary (4C1).       
 bags and reels may not be used      fibreboard..........................                                          natural wood, sift proof walls (4C2).
 as inner packagings                 metal...............................                                          plywood (4D).                        
2. For UN 0030, 0255 and 0456,       plastics............................                                          reconstituted wood (4F).             
 inner packagings are not            wood................................                                          fibreboard (4G).                     
 required when detonators are      Reels.................................                                          Drums.                               
 packed in pasteboard tubes, or                                                                                    steel, removable head (1A2).         
 when their leg wires are wound                                                                                    aluminium, removable head (1B2).     
 on spools with the caps either                                                                                    fibre (1G).                          
 placed inside the spool or                                                                                        plastics, removable head (1H2).      
 securely taped to the wire on                                                                                                                          
 the spool, so as to restrict                                                                                                                           
 freedom of movement of the caps                                                                                                                        
 and to protect them from impact                                                                                                                        
 forces                                                                                                                                                 
3. For UN 0360, 0361 and 0500,                                                                                                                          
 detonators are not required to                                                                                                                         
 be attached to the safety fuse,                                                                                                                        
 metal-clad mild detonating cord,                                                                                                                       
 detonating cord, or shock tube.                                                                                                                        
 Inner packagings are not                                                                                                                               
 required if the packing                                                                                                                                
 configuration restricts freedom                                                                                                                        
 of movement of the caps and                                                                                                                            
 protects them from impact forces                                                                                                                       
132(a)...........................  Not necessary.........................  Not necessary.........................  Boxes.                               
                                                                                                                   steel (4A).                          
                                                                                                                   aluminium (4B).                      
                                                                                                                   wood, natural, ordinary (4C1).       
                                                                                                                   wood, natural, sift proof walls      
                                                                                                                    (4C2).                              
                                                                                                                   plywood (4D).                        
                                                                                                                   reconstituted wood (4F).             
                                                                                                                   fibreboard (4G).                     
                                                                                                                   plastics, solid (4H2).               

[[Page 439]]

                                                                                                                                                        
132(b)...........................  Receptacles...........................  Not necessary.........................  Boxes.                               
                                     fibreboard..........................                                          steel (4A).                          
                                     metal...............................                                          aluminium (4B).                      
                                     lastics.............................                                          wood, natural, ordinary (4C1).       
                                   Sheets................................                                          wood, natural, sift proof walls      
                                     paper...............................                                           (4C2).                              
                                     plastics............................                                          plywood (4D).                        
                                                                                                                   reconstituted wood (4F).             
                                                                                                                   fibreboard (4G).                     
                                                                                                                   plastics, solid (4H2).               
133..............................  Receptacles...........................  Receptacles...........................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS    fibreboard                                steel (4A)..........................                                       
 OR EXCEPTIONS:                    metal.................................  aluminium (4B)........................                                       
1. For UN 0043, 0212, 0225, 0268   plastics..............................  wood, natural, ordinary (4C1).........                                       
 and 0306 trays are not            wood..................................  wood, natural, sift proof walls (4C2).                                       
 authorized as inner packagings                                            plywood (4D)..........................                                       
2. Intermediate packagings are                                             reconstituted wood (4F)...............                                       
 only required when trays are                                              fibreboard (4G).......................                                       
 used as inner packagings                                                  plastics, solid (4H2).................                                       
  fibreboard                                                                                                                                            
  metal                                                                                                                                                 
  plastics                                                                                                                                              
  wood                                                                                                                                                  
Trays, fitted with dividing                                                                                                                             
partitions                                                                                                                                              
fibreboard                                                                                                                                              
plastics                                                                                                                                                
wood                                                                                                                                                    
134..............................  Bags..................................  Not necessary.........................  Boxes.                               
                                     water resistant.....................                                          steel (4A).                          
                                   Receptacles...........................                                          aluminium (4B).                      
                                     fibreboard..........................                                          wood, natural, ordinary (4C1).       
                                     metal...............................                                          wood, natural, sift proof walls      
                                     plastics............................                                           (4C2).                              
                                     wood................................                                          plywood (4D).                        
                                   Sheets................................                                          reconstituted wood (4F).             
                                     fibreboard, corrugated..............                                          fibreboard (4G).                     
                                     Tubes...............................                                          plastics, solid (4H2).               
                                     fibreboard..........................                                          Drums.                               
                                                                                                                   steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     

[[Page 440]]

                                                                                                                                                        
135..............................  Bags..................................  Not necessary.........................  Boxes.                               
                                     paper...............................                                          steel (4A).                          
                                     plastics............................                                          aluminium (4B).                      
                                   Receptacles...........................                                          wood, natural, ordinary (4C1).       
                                     fibreboard..........................                                          wood, natural, sift proof walls      
                                     metal...............................                                           (4C2).                              
                                     plastics............................                                          plywood (4D).                        
                                     wood................................                                          reconstituted wood (4F).             
                                   Sheets................................                                          fibreboard (4G).                     
                                     paper...............................                                          plastics, expanded (4H1).            
                                     plastics............................                                          plastics, solid (4H2).               
                                                                                                                   Drums.                               
                                                                                                                   steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     
                                                                                                                   fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      
136..............................  Bags..................................  Not necessary.........................  Boxes.                               
                                     plastics............................                                          steel (4A).                          
                                     textile.............................                                          aluminium (4B)                       
                                   Boxes.................................                                          wood, natural, ordinary (4C1).       
                                     fibreboard..........................                                          wood, natural, sift proof walls      
                                     plastics............................                                           (4C2).                              
                                     wood................................                                          plywood (4D).                        
                                   Dividing partitions in the............                                          reconstituted wood (4F).             
                                   outer packagings......................                                          fibreboard (4G).                     
                                                                                                                   plastics, solid (4H2).               
                                                                                                                   Drums.                               
                                                                                                                   steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     
                                                                                                                   fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      
137..............................  Bags..................................  Not necessary.........................  Boxes.                               

[[Page 441]]

                                                                                                                                                        
PARTICULAR PACKING REQUIREMENTS                                              steel (4A)..........................                                       
 OR EXCEPTIONS:                                                            aluminium (4B)........................                                       
For UN 0059, 0439, 0440 and 0441,                                          wood, natural, ordinary (4C1).........                                       
 when the shaped charges are                                               wood, natural, sift proof walls (4C2).                                       
 packed singly, the conical                                                plywood (4D)..........................                                       
 cavity must face downwards and                                            reconstituted wood (4F)...............                                       
 the package marked ``THIS SIDE                                            fibreboard (4G).......................                                       
 UP''. When the shaped charges                                                                                                                          
 are packed in pairs, the conical                                                                                                                       
 cavities must face inwards to                                                                                                                          
 minimize the jetting effect in                                                                                                                         
 the event of accidental                                                                                                                                
 initiation                                                                                                                                             
  plastics                                                                                                                                              
Boxes                                                                                                                                                   
  fibreboard                                                                                                                                            
Tubes                                                                                                                                                   
  fibreboard                                                                                                                                            
  metal                                                                                                                                                 
  plastics                                                                                                                                              
Dividing partitions in the outer                                                                                                                        
 packagings                                                                                                                                             
138..............................  Bags..................................  Not necessary.........................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS      plastics............................  ......................................    steel (4A).                        
 OR EXCEPTIONS:                                                                                                    aluminium (4B).                      
If the ends of the articles are                                                                                    wood, natural, ordinary (4C1).       
 sealed, inner packagings are not                                                                                  wood, natural, sift proof walls      
 necessary                                                                                                          (4C2).                              
                                                                                                                   plywood (4D).                        
                                                                                                                   reconstituted wood (4F).             
                                                                                                                   fibreboard (4G).                     
                                                                                                                   plastics, solid (4H2).               
                                                                                                                   Drums.                               
                                                                                                                   steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     
139..............................  Bags..................................  Not necessary.........................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS      plastics............................                                            steel (4A).                        
 OR EXCEPTIONS:                    Receptacles...........................                                            aluminium (4B).                    
1. For UN 0065, 0102, 0104, 0289     fibreboard..........................                                          wood, natural, ordinary (4C1).       
 and 0290, the ends of the           metal...............................                                          wood, natural, sift proof walls      
 detonating cord must be sealed,     plastics............................                                           (4C2).                              
 for example, by a plug firmly       wood................................                                          plywood (4D).                        
 fixed so that the explosive       Reels.................................                                          reconstituted wood (4F).             
 cannot escape. The ends of CORD   ......................................                                          fibreboard (4G).                     
 DETONATING flexible must be       Sheets................................                                          plastics, solid (4H2).               
 fastened securely                   paper...............................                                          Drums.                               
2. For UN 0065 and UN 0289, inner    plastics............................                                          steel, removable head (1A2).         
 packagings are not required when                                                                                  aluminium, removable head (1B2).     
 they are fastened securely in                                                                                     plywood (1D).                        
 coils                                                                                                             fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      
140..............................  Bags..................................  Not necessary.........................  Boxes.                               

[[Page 442]]

                                                                                                                                                        
PARTICULAR PACKING REQUIREMENTS      plastics............................                                            steel (4A).                        
 OR EXCEPTIONS:                    Reels.................................                                          aluminium (4B).                      
1. If the ends of UN 0105 are      Sheets................................                                          wood, natural, ordinary (4C1).       
 sealed, no inner packagings are     paper, kraft........................                                          wood, natural, sift proof walls      
 required                            plastics............................                                           (4C2).                              
2. For UN 0101, the packaging                                                                                      plywood (4D).                        
 must be sift-proof except when                                                                                    reconstituted wood (4F).             
 the fuse is covered by a paper                                                                                    fibreboard (4G).                     
 tube and both ends of the tube                                                                                    plastics, solid (4H2).               
 are covered with removable caps                                                                                   Drums.                               
3. For UN 0101, steel or                                                                                           steel, removable head (1A2).         
 aluminium boxes or drums must                                                                                     aluminium, removable head (1B2).     
 not be used                                                                                                       fibre (1G).                          
141..............................  Receptacles...........................  Not necessary.........................  Boxes.                               
                                     fibreboard..........................                                          steel (4A).                          
                                     metal...............................                                          aluminium (4B).                      
                                     plastics............................                                          wood, natural, ordinary (4C1).       
                                     wood................................                                          wood, natural, sift proof walls      
                                   ......................................                                           (4C2).                              
                                   Trays, fitted with dividing partitions                                          plywood (4D).                        
                                     plastics............................                                          reconstituted wood (4F).             
                                     wood................................                                          fibreboard (4G).                     
                                   Dividing partitions in the outer                                                plastics, solid (4H2).               
                                    packagings.                                                                    Drums.                               
                                                                                                                   steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     
                                                                                                                   fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      
142..............................  Bags..................................  Not necessary.........................  Boxes.                               
                                     paper...............................                                          steel (4A).                          
                                     plastics............................                                          aluminium (4B).                      
                                   Receptacles...........................                                          wood, natural, ordinary (4C1).       
                                     fibreboard..........................                                          wood, natural, sift proof walls      
                                     metal...............................                                           (4C2).                              
                                     plastics............................                                          plywood (4D).                        
                                     wood................................                                          reconstituted wood (4F).             
                                   Sheets................................                                          fibreboard (4G).                     
                                     paper...............................                                          plastics, solid (4H2).               
                                   Trays, fitted with dividing partitions                                          Drums.                               
                                     plastics............................                                          steel, removable head (1A2).         
                                                                                                                   aluminium, removable head (1B2).     
                                                                                                                   fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      
143..............................  Bag...................................  Not necessary.........................  Boxes.                               

[[Page 443]]

                                                                                                                                                        
PARTICULAR PACKING REQUIREMENTS      paper, kraft........................                                            steel (4A).                        
 OR EXCEPTIONS:                      plastics............................                                          aluminum (4B).                       
1. For UN 0271, 0272, 0415 and       textile.............................                                          wood, natural, ordinary (4C1).       
 0491 when metal packagings are      textile, rubberized.................                                          wood, natural, sift proof walls      
 used, metal packagings must be    Receptacles...........................                                           (4C2).                              
 so constructed that the risk of     fibreboard..........................                                          plywood (4D).                        
 explosion, by reason of increase    metal...............................                                          reconstituted wood (4F).             
 in internal pressure from           plastics............................                                          fibreboard (4G).                     
 internal or external causes is    Trays, fitted with dividing partitions                                          plastics, solid (4H2).               
 prevented                           plastics............................                                          Drums.                               
2. Composite packagings (6HH2)       wood................................                                          steel, removable head (1A2).         
 (plastic receptacle with outer                                                                                    aluminium, removable head (1B2).     
 solid box) may be used in lieu                                                                                    plywood (1D).                        
 of combination packagings                                                                                         fibre (1G).                          
                                                                                                                   plastics, removable head (1H2).      
144..............................  Receptacles...........................  Not necessary.........................  Boxes.                               
PARTICULAR PACKING REQUIREMENTS      fibreboard..........................                                            2steel (4A).                       
 OR EXCEPTIONS:                      metal...............................                                          aluminum (4B).                       
For UN 0248 and UN 0249,             plastics............................                                          wood, natural, ordinary (4C1) with   
 packagings must be protected      Dividing partitions in the outer                                                 metal liner.                        
 against the ingress of water.      packagings.                                                                    plywood (4D) with metal liner.       
 When CONTRIVANCES, WATER                                                                                          reconstituted wood (4F) with metal   
 ACTIVATED are transported                                                                                          liner.                              
 unpackaged, they must be                                                                                          plastics, expanded (4H1).            
 provided with at least two                                                                                                                             
 independent protective features                                                                                                                        
 which prevent the ingress of                                                                                                                           
 water                                                                                                                                                  
US 1                                                                                                                                                    
  1. A jet perforating gun, charged, oil well may be transported under the following conditions:........................................................
  a. Initiation devices carried on the same motor vehicle or offshore supply vessel must be segregated; each kind from every other kind, and from any   
   gun, tool or other supplies, unless approved in accordance with Sec.  173.56. Segregated initiation devices must be carried in a container having    
   individual pockets for each such device or in a fully enclosed steel container lined with a non-sparking material. No more than two segregated       
   initiation devices per gun may be carried on the same motor vehicle..                                                                                
  b. Each shaped charge affixed to the gun may not contain more than 112 g (4 ounces) of explosives.....................................................
  c. Each shaped charge if not completely enclosed in glass or metal, must be fully protected by a metal cover after installation in the gun............
  d. A jet perforating gun classed as 1.1D or 1.4D may be transported by highway by private or contract carriers engaged in oil well operations.........
  (i) A motor vehicle transporting a gun must have specially built racks or carrying cases designed and constructed so that the gun is securely held in 
   place during transportation and is not subject to damage by contact, one to the other or any other article or material carried in the vehicle; and.  
  (ii) The assembled gun packed on the vehicle may not extend beyond the body of the motor vehicle......................................................
  e. A jet perforating gun classed as 1.4D may be transported by a private offshore supply vessel only when the gun is carried in a motor vehicle as    
   specified in paragraph (d) of this packing method or on offshore well tool pallets provided that:.                                                   
  (i) All the conditions specified in paragraphs (a), (b), and (c) of this packing method are met;......................................................
  (ii) The total explosive contents do not exceed 90.8 kg (200 pounds) per tool pallet;.................................................................
  (iii) Each cargo vessel compartment may contain up to 90.8 kg (200 pounds) of explosive content if the segregation requirements in Sec.  176.83(b)(3) 
   of this subchapter are met; and.                                                                                                                     
  (iv) When more than one vehicle or tool pallet is stowed ``on deck'' a minimum horizontal separation of 3 m (9.8 feet) must be provided...............
--------------------------------------------------------------------------------------------------------------------------------------------------------


[[Page 444]]

    (d) Class 1 (explosive) materials owned by the Department of Defense 
and packaged prior to January 1, 1990, in accordance with the 
requirements of this subchapter in effect at that time, are excepted 
from the requirements of part 178 of this subchapter provided the 
packagings have maintained their integrity and the explosive material is 
declared as government-owned goods packaged prior to January 1, 1990.
[Amdt. 173-260, 62 FR 24720, May 6, 1997; 62 FR 45702, Aug. 28, 1997; 62 
FR 51560, Oct. 1, 1997; 63 FR 1884, Jan. 12, 1998]



Sec. 173.63  Packaging exceptions.

    (a) Cord, detonating (UN 0065), having an explosive content not 
exceeding 6.5 g (0.23 ounces) per 30 centimeter length (one linear foot) 
may be offered for transportation domestically and transported as Cord, 
detonating (UN 0289), Division 1.4 Compatibility Group D (1.4D) 
explosives, if the gross weight of all packages containing Cord, 
detonating (UN 0065), does not exceed 45 kg (99 pounds) per:
    (1) Transport vehicle, freight container, or cargo-only aircraft;
    (2) Off-shore down-hole tool pallet carried on an off-shore supply 
vessel;
    (3) Cargo compartment of a cargo vessel; or
    (4) Passenger-carrying aircraft used to transport personnel to 
remote work sites, such as offshore drilling units.
    (b) Cartridges, small arms, and cartridges power devices. (1) 
Cartridges, small arms, and cartridges power devices (which are used to 
project fastening devices) which have been classed as a Division 1.4S 
explosive may be reclassed, offered for transportation, and transported 
as ORM-D material when packaged in accordance with paragraph (b)(2) of 
this section; such transportation is excepted from the requirements of 
subparts E (Labeling) and F (Placarding) of part 172 of this subchapter. 
Cartridges, small arms, and cartridges power devices that may be shipped 
as ORM-D material is limited to:
    (i) Ammunition for rifle, pistol or shotgun;
    (ii) Ammunition with inert projectiles or blank ammunition;
    (iii) Ammunition having no tear gas, incendiary, or detonating 
explosive projectiles;
    (iv) Ammunition not exceeding 12.7 mm (50 caliber or 0.5 inch) for 
rifle or pistol, cartridges or 8 gauge for shotshells; and
    (v) Cartridges, power devices which are used to project fastening 
devices.
    (2) Packaging for cartridges, small arms, and cartridges power 
devices as ORM-D material must be as follows:
    (i) Ammunition must be packed in inside boxes, or in partitions 
which fit snugly in the outside packaging, or in metal clips;
    (ii) Primers must be protected from accidental initiation;
    (iii) Inside boxes, partitions or metal clips must be packed in 
securely-closed strong outside packagings;
    (iv) Maximum gross weight is limited to 30 kg (66 pounds) per 
package; and
    (v) Cartridges, power devices which are used to project fastening 
devices and 22 caliber rim-fire cartridges may be packaged loose in 
strong outside packagings.
    (c)--(e) [Reserved]
    (f) Detonators containing no more than 1 g explosive (excluding 
ignition and delay charges) that are electric blasting caps with leg 
wires 4 feet long or longer, delay connectors in plastic sheaths, or 
blasting caps with empty plastic tubing 12 feet long or longer may be 
packed as follows in which case they are excepted from the packaging 
requirements of Sec. 173.62:
    (1) No more than 50 detonators in one inner packaging;
    (2) IME Standard 22 container or compartment is used as the outer 
packaging;
    (3) No more than 1000 detonators in one outer packaging; and
    (4) No material may be loaded on top of the IME Standard 22 
container and no material may be loaded against the outside door of the 
IME Standard 22 compartment.
    (g) Detonators that are classed as 1.4B or 1.4S and contain no more 
than 1 g of explosive (excluding ignition and delay charges) may be 
packed as follows in which case they are excepted from the packaging 
requirements of Sec. 173.62:

[[Page 445]]

    (1) No more than 50 detonators in one inner packaging;
    (2) IME Standard 22 container is used as the outer packaging;
    (3) No more than 1000 detonators in one outer packaging; and
    (4) Each inner packaging is marked ``l.4B Detonators'' or ``1.4S 
Detonators'', as appropriate.
[Amdt. 173-224, 55 FR 52617, Dec. 21, 1990, as amended at 56 FR 66268, 
Dec. 20, 1991; Amdt. 173-236, 58 FR 50536, Sept. 24, 1993; Amdt. 173-
253, 61 FR 27175, May 30, 1996]



  Subpart D--Definitions Classification, Packing Group Assignments and 
    Exceptions for Hazardous Materials Other Than Class 1 and Class 7

    Source:  Amdt. 173-224, 55 FR 52634 Dec. 21, 1990, unless otherwise 
noted.



Sec. 173.115  Class 2, Divisions 2.1, 2.2, and 2.3--Definitions.

    (a) Division 2.1 (Flammable gas). For the purpose of this 
subchapter, a flammable gas (Division 2.1) means any material which is a 
gas at 20 deg.C (68 deg.F) or less and 101.3 kPa (14.7 psi) of pressure 
(a material which has a boiling point of 20 deg.C (68 deg.F) or less at 
101.3 kPa (14.7 psi)) which--
    (1) Is ignitable at 101.3 kPa (14.7 psi) when in a mixture of 13 
percent or less by volume with air; or
    (2) Has a flammable range at 101.3 kPa (14.7 psi) with air of at 
least 12 percent regardless of the lower limit.

Except for aerosols, the limits specified in paragraphs (a)(1) and 
(a)(2) of this section shall be determined at 101.3 kPa (14.7 psi) of 
pressure and a temperature of 20 deg.C (68 deg.F) in accordance with 
ASTM E681-85, Standard Test Method for Concentration Limits of 
Flammability of Chemicals or other equivalent method approved by the 
Associate Administrator for Hazardous Materials Safety. The flammability 
of aerosols is determined by the tests specified in Sec. 173.306(i) of 
this part.
    (b) Division 2.2 (non-flammable, nonpoisonous compressed gas--
including compressed gas, liquefied gas, pressurized cryogenic gas, 
compressed gas in solution, asphyxiant gas and oxidizing gas). For the 
purpose of this subchapter, a non-flammable, nonpoisonous compressed gas 
(Division 2.2) means any material (or mixture) which--
    (1) Exerts in the packaging an absolute pressure of 280 kPa (40.6 
psia) or greater at 20  deg.C (68  deg.F), and
    (2) Does not meet the definition of Division 2.1 or 2.3.
    (c) Division 2.3 (Gas poisonous by inhalation). For the purpose of 
this subchapter, a gas poisonous by inhalation (Division 2.3) means a 
material which is a gas at 20 deg.C (68 deg.F) or less and a pressure of 
101.3 kPa (14.7 psi) (a material which has a boiling point of 20 deg.C 
(68 deg.F) or less at 101.3 kPa (14.7 psi)) and which--
    (1) Is known to be so toxic to humans as to pose a hazard to health 
during transportation, or
    (2) In the absence of adequate data on human toxicity, is presumed 
to be toxic to humans because when tested on laboratory animals it has 
an LC50 value of not more than 5000 ml/m\3\ (see Sec. 173.116(a) of this 
subpart for assignment of Hazard Zones A, B, C or D). LC50 values for 
mixtures may be determined using the formula in Sec. 173.133(b)(1)(i) of 
this subpart.
    (d) Non-liquefied compressed gas. A non-liquefied compressed gas 
means a gas, other than in solution, which in a packaging under the 
charged pressure is entirely gaseous at a temperature of 20  deg.C (68 
deg.F).
    (e) Liquefied compressed gas. A liquefied compressed gas means a gas 
which in a packaging under the charged pressure, is partially liquid at 
a temperature of 20  deg.C (68  deg.F).
    (f) Compressed gas in solution. A compressed gas in solution is a 
non-liquefied compressed gas which is dissolved in a solvent.
    (g) Cryogenic liquid. A cryogenic liquid means a refrigerated 
liquefied gas having a boiling point colder than -90  deg.C (-130 
deg.F) at 101.3 kPa (14.7 psi) absolute. A material meeting this 
definition is subject to requirements of this subchapter without regard 
to whether it meets the definition of a non-flammable, non-poisonous 
compressed gas in paragraph (b) of this section.

[[Page 446]]

    (h) Flammable range. The term flammable range means the difference 
between the minimum and maximum volume percentages of the material in 
air that forms a flammable mixture.
    (i) Service pressure. The term service pressure means the authorized 
pressure marking on the packaging. For example, for a cylinder marked 
``DOT 3A1800'', the service pressure is 12410 kPa (1800 psi).
    (j) Refrigerant gas or Dispersant gas. The terms Refrigerant gas or 
Dispersant gas apply to all non-poisonous refrigerant gases, dispersant 
gases (fluorocarbons) listed in Secs. 172.101, 173.304(a)(2), 
173.314(c), 173.315(a)(1) and 173.315(h), and mixtures thereof, or any 
other compressed gas having a vapor pressure not exceeding 1792 kPa (260 
psi) at 54  deg.C (130  deg.F), and restricted for use as a refrigerant, 
dispersant or blowing agent.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66268, 
Dec. 20, 1991; 57 FR 45461, Oct. 1, 1992; Amdt. 173-236, 58 FR 50236, 
Sept. 24, 1993; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-241, 
59 FR 67506, Dec. 29, 1994; Amdt. 173-255, 61 FR 50625, Sept. 26, 1996]



Sec. 173.116  Class 2--Assignment of hazard zone.

    (a) The hazard zone of a Class 2, Division 2.3 material is assigned 
in Column 7 of the Sec. 172.101 Table. There are no hazard zones for 
Divisions 2.1 and 2.2. When the Sec. 172.101 Table provides more than 
one hazard zone for a Division 2.3 material, or indicates that the 
hazard zone be determined on the basis of the grouping criteria for 
Division 2.3, the hazard zone shall be determined by applying the 
following criteria:

                                                                        
------------------------------------------------------------------------
           Hazard zone                      Inhalation toxicity         
------------------------------------------------------------------------
A................................  LC50 less than or equal to 200 ppm.  
B................................  LC50 greater than 200 ppm and less   
                                    than or equal to 1000 ppm.          
C................................  LC50 greater than 1000 ppm and less  
                                    than or equal to 3000 ppm.          
D................................  LC50 greater than 3000 ppm or less   
                                    than or equal to 5000 ppm.          
------------------------------------------------------------------------

    (b) The criteria specified in paragraph (a) of this section are 
represented graphically in Sec. 173.133, Figure 1.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66268, 
Dec. 20, 1991; Amdt. 173-138, 59 FR 49133, Sept. 26, 1994]



Secs. 173.117-173.119  [Reserved]



Sec. 173.120  Class 3--Definitions.

    (a) Flammable liquid. For the purpose of this subchapter, a 
flammable liquid (Class 3) means a liquid having a flash point of not 
more than 60.5 deg.C (141 deg.F), or any material in a liquid phase with 
a flash point at or above 37.8 deg.C (100 deg.F) that is intentionally 
heated and offered for transportation or transported at or above its 
flash point in a bulk packaging, with the following exceptions:
    (1) Any liquid meeting one of the definitions specified in 
Sec. 173.115.
    (2) Any mixture having one or more components with a flash point of 
60.5 deg.C (141 deg.F) or higher, that make up at least 99 percent of 
the total volume of the mixture, if the mixture is not offered for 
transportation or transported at or above its flash point.
    (3) Any liquid with a flash point greater than 35 deg.C (95 deg.F) 
which does not sustain combustion according to ASTM 4206 or the 
procedure in Appendix H of this part.
    (4) Any liquid with a flash point greater than 35 deg.C (95 deg.F) 
and with a fire point greater than 100 deg.C (212 deg.F) according to 
ISO 2592.
    (5) Any liquid with a flash point greater than 35 deg.C (95 deg.F) 
which is in a water-miscible solution with a water content of more than 
90 percent by mass.
    (b) Combustible liquid. (1) For the purpose of this subchapter, a 
combustible liquid means any liquid that does not meet the definition of 
any other hazard class specified in this subchapter and has a flash 
point above 60.5 deg.C (141 deg.F) and below 93  deg.C (200  deg.F).
    (2) A flammable liquid with a flash point at or above 38 deg.C 
(100 deg.F) that does not meet the definition of any other hazard class 
may be reclassed as a combustible liquid. This provision does not apply 
to transportation by vessel or aircraft, except where other means of 
transportation is impracticable. An elevated temperature material that 
meets the definition of a Class 3 material because it is intentionally 
heated and offered for transportation or transported at or above its 
flash point may not be reclassed as a combustible liquid.

[[Page 447]]

    (3) A combustible liquid which does not sustain combustion is not 
subject to the requirements of this subchapter as a combustible liquid. 
Either the test method specified in ASTM 4206 or the procedure in 
Appendix H of this part may be used to determine if a material sustains 
combustion when heated under test conditions and exposed to an external 
source of flame.
    (c) Flash point. (1) Flash point means the minimum temperature at 
which a liquid gives off vapor within a test vessel in sufficient 
concentration to form an ignitable mixture with air near the surface of 
the liquid. It shall be determined as follows:
    (i) For a homogeneous, single-phase, liquid having a viscosity less 
than 45 S.U.S. at 38  deg.C (100  deg.F) that does not form a surface 
film while under test, one of the following test procedures shall be 
used:
    (A) Standard Method of Test for Flash Point by Tag Closed Tester, 
(ASTM D 56);
    (B) Standard Methods of Test for Flash Point of Liquids by Setaflash 
Closed Tester, (ASTM D 3278); or
    (C) Standard Test Methods for Flash Point by Small Scale Closed 
Tester, (ASTM D 3828).
    (ii) For a liquid other than one meeting all of the criteria of 
paragraph (c)(1)(i) of this section, one of the following test 
procedures shall be used:
    (A) Standard Method of Test for Flash Point by Pensky--Martens 
Closed Tester, (ASTM D 93). For cutback asphalt, use Method B of ASTM D 
93 or alternate tests authorized in this standard; or
    (B) Standard Methods of Test for Flash Point of Liquids by Setaflash 
Closed Tester (ASTM D 3278).
    (2) For a liquid that is a mixture of compounds that have different 
volatility and flash points, its flash point shall be determined as 
specified in paragraph (c)(1) of this section, on the material in the 
form in which it is to be shipped. If it is determined by this test that 
the flash point is higher than -7  deg.C (20  deg.F) a second test shall 
be made as follows: a portion of the mixture shall be placed in an open 
beaker (or similar container) of such dimensions that the height of the 
liquid can be adjusted so that the ratio of the volume of the liquid to 
the exposed surface area is 6 to one. The liquid shall be allowed to 
evaporate under ambient pressure and temperature (20 to 25  deg.C (68 to 
77  deg.F)) for a period of 4 hours or until 10 percent by volume has 
evaporated, whichever comes first. A flash point is then run on a 
portion of the liquid remaining in the evaporation container and the 
lower of the two flash points shall be the flash point of the material.
    (3) For flash point determinations by Setaflash closed tester, the 
glass syringe specified need not be used as the method of measurement of 
the test sample if a minimum quantity of 2 ml (0.1 ounce) is assured in 
the test cup.
    (d) If experience or other data indicate that the hazard of a 
material is greater or less than indicated by the criteria specified in 
paragraphs (a) and (b) of this section, the Associate Administrator for 
Hazardous Materials Safety may revise the classification or make the 
material subject or not subject to the requirements of parts 170-189 of 
this subchapter.
[Amdt. 173-224, 55 FR 52634 Dec. 21, 1990, as amended by Amdt. 173-227, 
56 FR 49989, Oct. 2, 1991; 56 FR 66268, Dec. 20, 1991; 57 FR 45461, Oct. 
1, 1992; Amdt. 173-241, 59 FR 67506, 67507, Dec. 29, 1994; Amdt. 173-
255, 61 FR 50625, Sept. 26, 1996; Amdt. 173-261, 62 FR 24731, May 6, 
1997]



Sec. 173.121  Class 3--Assignment of packing group.

    (a) The packing group of a Class 3 material is as assigned in Column 
5 of the Sec. 172.101 Table. When the Sec. 172.101 Table provides more 
than one packing group for a hazardous material, the packing group shall 
be determined by applying the following criteria:

                                                                        
------------------------------------------------------------------------
                                 Flash point (closed-    Initial boiling
        Packing group                    cup)                 point     
------------------------------------------------------------------------
I............................  .......................  35   
                                                         deg.C (95      
                                                         deg.F)         
II...........................  <23  deg.C (73  deg.F)   >  deg.C (95    
                                                         deg.F)         
III..........................  23  deg.C,    >  deg.C (95    
                                 60.5 deg.C   deg.F)         
                                (141 deg.F)                             
------------------------------------------------------------------------

    (b) Criteria for inclusion of viscous Class 3 materials in Packing 
Group III.
    (1) Viscous Class 3 materials in Packing Group II with a flash point 
of less than 23  deg.C (73  deg.F) may be grouped in Packing Group III 
provided that--

[[Page 448]]

    (i) Less than 3 percent of the clear solvent layer separates in the 
solvent separation test;
    (ii) The mixture contains not more than 5 percent of substances in 
Packing Group I or II of Division 6.1 or Class 8, or not more than 5 
percent of substances in Packing Group I of Class 3 requiring a POISON 
or CORROSIVE subsidiary label (Note: The mixture is not necessarily 
required to bear a POISON or CORROSIVE subsidiary risk label.);
    (iii) The capacity of the packaging is not more than 30 L (7.9 
gallons); and
    (iv) The viscosity and flash point are in accordance with the 
following table:

                                                                        
------------------------------------------------------------------------
                                          Jet                           
        Flow time t in seconds         diameter      Flash point c.c.   
                                         in mm                          
------------------------------------------------------------------------
20t60.....................        4   above 17 deg.C (62.6   
                                                  deg.F).               
60t100....................        4   above 10 deg.C (50     
                                                  deg.F).               
20t32.....................        6   above 5 deg.C (41      
                                                  deg.F).               
32t44.....................        6   above -1 deg.C (31.2   
                                                  deg.F).               
44t100....................        6   above -5 deg.C (23     
                                                  deg.F).               
100t.................................        6   -5 deg.C (23 deg.F) and
                                                  below.                
------------------------------------------------------------------------

    (2) The methods by which the tests referred to in paragraph (b)(1) 
of this section shall be performed are as follows:
    (i) Viscosity test. The flow time in seconds is determined at 
23 deg.C (73.4 deg.F) using the ISO standard cup with a 4 mm (0.16 inch) 
jet (ISO 2431:1984). Where the flow time exceeds 100 seconds, a further 
test is carried out using the ISO standard cup with a 6 mm (0.24 inch) 
jet.
    (ii) Solvent Separation Test. This test is carried out at 23  deg.C 
(73  deg.F) using a 100.0 ml (3 ounces) measuring cylinder of the 
stoppered type of approximately 25.0 cm (9.8 inches) total height and of 
a uniform internal diameter of approximately 30 mm (1.2 inches) over the 
calibrated section. The sample should be stirred to obtain a uniform 
consistency, and poured in up to the 100 ml (3 ounces) mark. The stopper 
should be inserted and the cylinder left standing undisturbed for 24 
hours. After 24 hours, the height of the upper separated layer should be 
measured and the percentage of this layer as compared with the total 
height of the sample calculated.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66268, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67507, Dec. 29, 1994 Amdt. 173-255, 
61 FR 50625, Sept. 26, 1996]



Sec. 173.124  Class 4, Divisions 4.1, 4.2 and 4.3--Definitions.

    (a) Division 4.1 (Flammable Solid). For the purposes of this 
subchapter, flammable solid (Division 4.1) means any of the following 
three types of materials:
    (1) Desensitized explosives that--
    (i) When dry are Explosives of Class 1 other than those of 
compatibility group A, which are wetted with sufficient water, alcohol, 
or plasticizer to suppress explosive properties; and
    (ii) Are specifically authorized by name either in the 
Sec. 172.101Table or have been assigned a shipping name and hazard class 
by the Associate Administrator for Hazardous Materials Safety under the 
provisions of--
    (A) An exemption issued under subchapter A of this chapter; or
    (B) An approval issued under Sec. 173.56(i) of this part.
    (2)(i) Self-reactive materials are materials that are thermally 
unstable and that can undergo a strongly exothermic decomposition even 
without participation of oxygen (air). A material is excluded from this 
definition if any of the following applies:
    (A) The material meets the definition of an explosive as prescribed 
in subpart C of this part, in which case it must be classed as an 
explosive;
    (B) The material is forbidden from being offered for transportation 
according to Sec. 172.101 of this subchapter or Sec. 173.21;
    (C) The material meets the definition of an oxidizer or organic 
peroxide as prescribed in subpart D of this part, in which case it must 
be so classed;
    (D) The material meets one of the following conditions:
    (1) Its heat of decomposition is less than 300 J/g; or
    (2) Its self-accelerating decomposition temperature (SADT) is 
greater than 75 deg.C (167 deg.F) for a 50 kg package; or
    (E) The Associate Administrator for Hazardous Materials Safety has 
determined that the material does not

[[Page 449]]

present a hazard which is associated with a Division 4.1 material.
    (ii) Generic types. Division 4.1 self-reactive materials are 
assigned to a generic system consisting of seven types. A self-reactive 
substance identified by technical name in the Self-Reactive Materials 
Table in Sec. 173.224 is assigned to a generic type in accordance with 
that Table. Self-reactive materials not identified in the Self-Reactive 
Materials Table in Sec. 173.224 are assigned to generic types under the 
procedures of paragraph (a)(2)(iii) of this section.
    (A) Type A. Self-reactive material type A is a self-reactive 
material which, as packaged for transportation, can detonate or 
deflagrate rapidly. Transportation of type A self-reactive material is 
forbidden.
    (B) Type B. Self-reactive material type B is a self-reactive 
material which, as packaged for transportation, neither detonates nor 
deflagrates rapidly, but is liable to undergo a thermal explosion in a 
package.
    (C) Type C. Self-reactive material type C is a self-reactive 
material which, as packaged for transportation, neither detonates nor 
deflagrates rapidly and cannot undergo a thermal explosion.
    (D) Type D. Self-reactive material type D is a self-reactive 
material which--
    (1) Detonates partially, does not deflagrate rapidly and shows no 
violent effect when heated under confinement;
    (2) Does not detonate at all, deflagrates slowly and shows no 
violent effect when heated under confinement; or
    (3) Does not detonate or deflagrate at all and shows a medium effect 
when heated under confinement.
    (E) Type E. Self-reactive material type E is a self-reactive 
material which, in laboratory testing, neither detonates nor deflagrates 
at all and shows only a low or no effect when heated under confinement.
    (F) Type F. Self-reactive material type F is a self-reactive 
material which, in laboratory testing, neither detonates in the 
cavitated state nor deflagrates at all and shows only a low or no effect 
when heated under confinement as well as low or no explosive power.
    (G) Type G. Self-reactive material type G is a self-reactive 
material which, in laboratory testing, does not detonate in the 
cavitated state, will not deflagrate at all, shows no effect when heated 
under confinement, nor shows any explosive power. A type G self-reactive 
material is not subject to the requirements of this subchapter for self-
reactive material of Division 4.1 provided that it is thermally stable 
(self-accelerating decomposition temperature is 50  deg.C (122  deg.F) 
or higher for a 50 kg (110 pounds) package). A self-reactive material 
meeting all characteristics of type G except thermal stability is 
classed as a type F self-reactive, temperature control material.
    (iii) Procedures for assigning a self-reactive material to a generic 
type. A self-reactive material must be assigned to a generic type based 
on--
    (A) Its physical state (i.e. liquid or solid), in accordance with 
the definition of liquid and solid in Sec. 171.8 of this subchapter;
    (B) A determination as to its control temperature and emergency 
temperature, if any, under the provisions of Sec. 173.21(f);
    (C) Performance of the self-reactive material under the test 
procedures specified in the UN Recommendations on the Transport of 
Dangerous Goods, Tests and Criteria and the provisions of paragraph 
(a)(2)(iii) of this section; and
    (D) Except for a self-reactive material which is identified by 
technical name in the Self-Reactive Materials Table in Sec. 173.224(b) 
or a self-reactive material which may be shipped as a sample under the 
provisions of Sec. 173.224, the self-reactive material is approved in 
writing by the Associate Administrator for Hazardous Materials Safety. 
The person requesting approval shall submit to the Associate 
Administrator for Hazardous Materials Safety the tentative shipping 
description and generic type and--
    (1) All relevant data concerning physical state, temperature 
controls, and tests results; or
    (2) An approval issued for the self-reactive material by the 
competent authority of a foreign government.
    (iv) Tests. The generic type for a self-reactive material must be 
determined using the testing protocol from Figure

[[Page 450]]

14.2 (Flow Chart for Assigning Self-Reactive Substances to Division 4.1) 
from the UN Recommendations on the Transport of Dangerous Goods, Tests 
and Criteria.
    (3) Readily combustible solids are materials that--
    (i) Are solids which may cause a fire through friction, such as 
matches;
    (ii) Show a burning rate faster than 2.2 mm (0.087 inches) per 
second when tested in accordance with UN Manual of Tests and Criteria; 
or
    (iii) Any metal powders that can be ignited and react over the whole 
length of a sample in 10 minutes or less, when tested in accordance with 
UN Manual of Tests and Criteria.
    (b) Division 4.2 (Spontaneously Combustible Material). For the 
purposes of this subchapter, spontaneously combustible material 
(Division 4.2) means--
    (1) A pyrophoric material. A pyrophoric material is a liquid or 
solid that, even in small quantities and without an external ignition 
source, can ignite within five (5) minutes after coming in contact with 
air when tested according to UN Manual of Tests and Criteria.
    (2) A self-heating material. A self-heating material is a material 
that, when in contact with air and without an energy supply, is liable 
to self-heat. A material of this type which exhibits spontaneous 
ignition or if the temperature of the sample exceeds 200  deg.C (392 
deg.F) during the 24-hour test period when tested in accordance with UN 
Manual of Tests and Criteria, is classed as a Division 4.2 material.
    (c) Division 4.3 (Dangerous when wet material). For the purposes of 
this chapter, dangerous when wet material (Division 4.3) means a 
material that, by contact with water, is liable to become spontaneously 
flammable or to give off flammable or toxic gas at a rate greater than 1 
liter per kilogram of the material, per hour, when tested in accordance 
with UN Manual of Tests and Criteria.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66268, 
Dec. 20, 1991; 57 FR 45461, Oct. 1, 1992; Amdt. 173-233, 58 FR 33305, 
June 16, 1993; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-241, 
59 FR 67507, Dec. 29, 1994; Amdt. 173-261, 62 FR 24731, May 6, 1997]



Sec. 173.125  Class 4--Assignment of packing group.

    (a) The packing group of a Class 4 material is assigned in Column 
(5) of the Sec. 172.101 Table. When the Sec. 172.101 Table provides more 
than one packing group for a hazardous material, the packing group shall 
be determined on the basis of test results following test methods given 
in the UN Manual of Tests and Criteria and by applying the appropriate 
criteria given in this section.
    (b) Packing group criteria for readily combustible materials of 
Division 4.1 are as follows:
    (1) Powdered, granular or pasty materials must be classified in 
Division 4.1 when the time of burning of one or more of the test runs, 
in accordance with the UN Manual of Tests and Criteria, is less than 45 
seconds or the rate of burning is more than 2.2 mm/s. Powders of metals 
or metal alloys must be classified in Division 4.1 when they can be 
ignited and the reaction spreads over the whole length of the sample in 
10 minutes or less.
    (2) Packing group criteria for readily combustible materials of 
Division 4.1 are assigned as follows:
    (i) For readily combustible solids (other than metal powders), 
Packing Group II if the burning time is less than 45 seconds and the 
flame passes the wetted zone. Packing Group II must be assigned to 
powders of metal or metal alloys if the zone of reaction spreads over 
the whole length of the sample in 5 minutes or less.
    (ii) For readily combustible solids (other than metal powders), 
Packing Group III must be assigned if the burning rate time is less than 
45 seconds and the wetted zone stops the flame propagation for at least 
4 minutes. Packing Group III must be assigned to metal powders if the 
reaction spreads over the whole length of the sample in more than 5 
minutes but not more than 10 minutes.
    (c) Packing group criteria for Division 4.2 materials is as follows:
    (1) Pyrophoric liquids and solids of Division 4.2 are assigned to 
Packing Group I.
    (2) A self-heating material is assigned to--

[[Page 451]]

    (i) Packing Group II, if the material gives a positive test result 
when tested with a 25 mm cube size sample at 140 deg.C; or
    (ii) Packing Group III, if--
    (A) A positive test result is obtained in a test using a 100 mm 
sample cube at 140 deg.C and a negative test result is obtained in a 
test using a 25 mm sample cube at 140 deg.C and the substance is 
transported in packagings with a volume of more than 3 cubic meters; or
    (B) A positive test result is obtained in a test using a 100 mm 
sample cube at 120 deg.C and a negative result is obtained in a test 
using a 25 mm sample cube at 140 deg.C and the substance is transported 
in packagings with a volume of more than 450 liters; or
    (C) A positive result is obtained in a test using a 100 mm sample 
cube at 100 deg.C and a negative result is obtained in a test using a 25 
mm sample cube at 140 deg.C and the substance is transported in 
packagings with a volume of less than 450 liters.
    (d) A Division 4.3 dangerous when wet material is assigned to--
    (1) Packing Group I, if the material reacts vigorously with water at 
ambient temperatures and demonstrates a tendency for the gas produced to 
ignite spontaneously, or which reacts readily with water at ambient 
temperatures such that the rate of evolution of flammable gases is equal 
or greater than 10 liters per kilogram of material over any one minute;
    (2) Packing Group II, if the material reacts readily with water at 
ambient temperatures such that the maximum rate of evolution of 
flammable gases is equal to or greater than 20 liters per kilogram of 
material per hour, and which does not meet the criteria for Packing 
Group I; or
    (3) Packing Group III, if the material reacts slowly with water at 
ambient temperatures such that the maximum rate of evolution of 
flammable gases is greater than 1 liter per kilogram of material per 
hour, and which does not meet the criteria for Packing Group I or II.
[Amdt. 173-224, 55 FR 52634 Dec. 21, 1990, as amended by Amdt. 173-255, 
61 FR 50625, Sept. 26, 1996; Amdt. 173-261, 62 FR 24731, May 6, 1997; 62 
FR 51560, Oct. 1, 1997]



Sec. 173.127  Class 5, Division 5.1--Definition and assignment of packing groups.

    (a) Definition. For the purpose of this subchapter, oxidizer 
(Division 5.1) means a material that may, generally by yielding oxygen, 
cause or enhance the combustion of other materials.
    (1) A solid material is classed as a Division 5.1 material if, when 
tested in accordance with the UN Manual of Tests and Criteria, its mean 
burning time is less than or equal to the burning time of a 3:7 
potassium bromate/cellulose mixture.
    (2) A liquid material is classed as a Division 5.1 material if, when 
tested in accordance with the UN Manual of Tests and Criteria, it 
spontaneously ignites or its mean time for a pressure rise from 690 kPa 
to 2070 kPa gauge is less then the time of a 1:1 nitric acid (65 
percent)/cellulose mixture.
    (b) Assignment of packing groups. (1) The packing group of a 
Division 5.1 material which is a solid shall be assigned using the 
following criteria:
    (i) Packing Group I, for any material which, in either concentration 
tested, exhibits a mean burning time less than the mean burning time of 
a 3:2 potassium bromate/cellulose mixture.
    (ii) Packing Group II, for any material which, in either 
concentration tested, exhibits a mean burning time less than or equal to 
the mean burning time of a 2:3 potassium bromate/cellulose mixture and 
the criteria for Packing Group I are not met.
    (iii) Packing Group III for any material which, in either 
concentration tested, exhibits a mean burning time less than or equal to 
the mean burning time of a 3:7 potassium bromate/cellulose mixture and 
the criteria for Packing Group I and II are not met.
    (2) The packing group of a Division 5.1 material which is a liquid 
shall be assigned using the following criteria:
    (i) Packing Group I for:
    (A) Any material which spontaneously ignites when mixed with 
cellulose in a 1:1 ratio; or
    (B) Any material which exhibits a mean pressure rise time less than 
the pressure rise time of a 1:1 perchloric acid (50 percent)/cellulose 
mixture.
    (ii) Packing Group II, any material which exhibits a mean pressure 
rise

[[Page 452]]

time less than or equal to the pressure rise time of a 1:1 aqueous 
sodium chlorate solution (40 percent)/cellulose mixture and the criteria 
for Packing Group I are not met.
    (iii) Packing Group III, any material which exhibits a mean pressure 
rise time less than or equal to the pressure rise time of a 1:1 nitric 
acid (65 percent)/cellulose mixture and the criteria for Packing Group I 
and II are not met.
[Amdt. 173-261, 62 FR 24732, May 6, 1997]



Sec. 173.128  Class 5, Division 5.2--Definitions and types.

    (a) Definitions. For the purposes of this subchapter, organic 
peroxide (Division 5.2) means any organic compound containing oxygen (O) 
in the bivalent -O-O- structure and which may be considered a derivative 
of hydrogen peroxide, where one or more of the hydrogen atoms have been 
replaced by organic radicals, unless any of the following paragraphs 
applies:
    (1) The material meets the definition of an explosive as prescribed 
in subpart C of this part, in which case it must be classed as an 
explosive;
    (2) The material is forbidden from being offered for transportation 
according to Sec. 172.101 of this subchapter or Sec. 173.21;
    (3) The Associate Administrator for Hazardous Materials Safety has 
determined that the material does not present a hazard which is 
associated with a Division 5.2 material; or
    (4) The material meets one of the following conditions:
    (i) For materials containing no more than 1.0 percent hydrogen 
peroxide, the available oxygen, as calculated using the equation in 
paragraph (a)(4)(ii) of this section, is not more than 1.0 percent, or
    (ii) For materials containing more than 1.0 percent but not more 
than 7.0 percent hydrogen peroxide, the available oxygen, content 
(Oa) is not more than 0.5 percent, when determined using the 
equation:
[GRAPHIC] [TIFF OMITTED] TC13NO91.031

where, for a material containing k species of organic peroxides:

    ni=number of -O-O- groups per molecule of the i th 
species
    ci=concentration (mass percent) of the i th species
    mi=molecular mass of the i th species
    (b) Generic types. Division 5.2 organic peroxides are assigned to a 
generic system which consists of seven types. An organic peroxide 
identified by technical name in the Organic Peroxides Table in 
Sec. 173.225 is assigned to a generic type in accordance with that 
Table. Organic peroxides not identified in the Organic Peroxides Table 
are assigned to generic types under the procedures of paragraph (c) of 
this section.
    (1) Type A. Organic peroxide type A is an organic peroxide which can 
detonate or deflagrate rapidly as packaged for transport. Transportation 
of type A organic peroxides is forbidden.
    (2) Type B. Organic peroxide type B is an organic peroxide which, as 
packaged for transport, neither detonates nor deflagrates rapidly, but 
can undergo a thermal explosion.
    (3) Type C. Organic peroxide type C is an organic peroxide which, as 
packaged for transport, neither detonates nor deflagrates rapidly and 
cannot undergo a thermal explosion.
    (4) Type D. Organic peroxide type D is an organic peroxide which--
    (i) Detonates only partially, but does not deflagrate rapidly and is 
not affected by heat when confined;
    (ii) Does not detonate, deflagrates slowly, and shows no violent 
effect if heated when confined; or
    (iii) Does not detonate or deflagrate, and shows a medium effect 
when heated under confinement.
    (5) Type E. Organic peroxide type E is an organic peroxide which 
neither detonates nor deflagrates and shows low, or no, effect when 
heated under confinement.
    (6) Type F. Organic peroxide type F is an organic peroxide which 
will not detonate in a cavitated state, does not deflagrate, shows only 
a low, or no, effect if heated when confined, and has low, or no, 
explosive power.
    (7) Type G. Organic peroxide type G is an organic peroxide which 
will not detonate in a cavitated state, will not deflagrate at all, 
shows no effect when heated under confinement, and shows no explosive 
power. A type G organic

[[Page 453]]

peroxide is not subject to the requirements of this subchapter for 
organic peroxides of Division 5.2 provided that it is thermally stable 
(self-accelerating decomposition temperature is 50  deg.C (122  deg.F) 
or higher for a 50 kg (110 pounds) package). An organic peroxide meeting 
all characteristics of type G except thermal stability and requiring 
temperature control is classed as a type F, temperature control organic 
peroxide.
    (c) Procedure for assigning an organic peroxide to a generic type. 
An organic peroxide shall be assigned to a generic type based on--
    (1) Its physical state (i.e., liquid or solid), in accordance with 
the definitions for liquid and solid in Sec. 171.8 of this subchapter;
    (2) A determination as to its control temperature and emergency 
temperature, if any, under the provisions of Sec. 173.21(f); and
    (3) Performance of the organic peroxide under the test procedures 
specified in the UN Manual of Tests and Criteria, and the provisions of 
paragraph (d) of this section.
    (d) Approvals. (1) An organic peroxide must be approved, in writing, 
by the Associate Administrator for Hazardous Materials Safety, before 
being offered for transportation or transported, including assignment of 
a generic type and shipping description, except for--
    (i) An organic peroxide which is identified by technical name in the 
Organic Peroxides Table in Sec. 173.225(b);
    (ii) A mixture of organic peroxides prepared according to 
Sec. 173.225(c)(5); or
    (iii) An organic peroxide which may be shipped as a sample under the 
provisions of Sec. 173.225(c).
    (2) A person applying for an approval must submit all relevant data 
concerning physical state, temperature controls, and tests results or an 
approval issued for the organic peroxide by the competent authority of a 
foreign government.
    (e) Tests. The generic type for an organic peroxide shall be 
determined using the testing protocol from Figure 20.1(a) 
(Classification and Flow Chart Scheme for Organic Peroxides) from the UN 
Manual of Tests and Criteria.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66268, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-241, 
59 FR 67508, Dec. 29, 1994; Amdt. 173-261, 62 FR 24732, May 6, 1997]



Sec. 173.129  Class 5, Division 5.2--Assignment of packing group.

    All Division 5.2 materials are assigned to Packing Group II in 
Column 5 of the Sec. 172.101 Table.



Sec. 173.132  Class 6, Division 6.1--Definitions.

    (a) For the purpose of this subchapter, poisonous material (Division 
6.1) means a material, other than a gas, which is known to be so toxic 
to humans as to afford a hazard to health during transportation, or 
which, in the absence of adequate data on human toxicity:
    (1) Is presumed to be toxic to humans because it falls within any 
one of the following categories when tested on laboratory animals 
(whenever possible, animal test data that has been reported in the 
chemical literature should be used):
    (i) Oral Toxicity. A liquid with an LD50 for acute oral 
toxicity of not more than 500 mg/kg or a solid with an LD50 
for acute oral toxicity of not more than 200 mg/kg.
    (ii) Dermal Toxicity. A material with an LD50 for acute 
dermal toxicity of not more than 1000 mg/kg.
    (iii) Inhalation Toxicity. (A) A dust or mist with an 
LC50 for acute toxicity on inhalation of not more than 10 mg/
L; or
    (B) A material with a saturated vapor concentration in air at 20 
deg.C (68  deg.F) of more than one-fifth of the LC50 for 
acute toxicity on inhalation of vapors and with an LC50 for 
acute toxicity on inhalation of vapors of not more than 5000 ml/m\3\; or
    (2) Is an irritating material, with properties similar to tear gas, 
which causes extreme irritation, especially in confined spaces.
    (b) For the purposes of this subchapter--
    (1) LD50 for acute oral toxicity means that dose of the 
material administered

[[Page 454]]

to both male and female young adult albino rats which causes death 
within 14 days in half the animals tested. The number of animals tested 
must be sufficient to give statistically valid results and be in 
conformity with good pharmacological practices. The result is expressed 
in mg/kg body mass.
    (2) LD50 for acute dermal toxicity means that dose of the 
material which, administered by continuous contact for 24 hours with the 
shaved intact skin (avoiding abrading) of an albino rabbit, causes death 
within 14 days in half of the animals tested. The number of animals 
tested must be sufficient to give statistically valid results and be in 
conformity with good pharmacological practices. The result is expressed 
in mg/kg body mass.
    (3) LC50 for acute toxicity on inhalation means that 
concentration of vapor, mist, or dust which, administered by continuous 
inhalation for one hour to both male and female young adult albino rats, 
causes death within 14 days in half of the animals tested. If the 
material is administered to the animals as a dust or mist, more than 90 
percent of the particles available for inhalation in the test must have 
a diameter of 10 microns or less if it is reasonably foreseeable that 
such concentrations could be encountered by a human during transport. 
The result is expressed in mg/L of air for dusts and mists or in mL/m\3\ 
of air (parts per million) for vapors. See Sec. 173.133(b) for 
LC50 determination for mixtures and for limit tests.
    (i) When provisions of this subchapter require the use of the 
LC50 for acute toxicity on inhalation of dusts and mists 
based on a one-hour exposure and such data is not available, the 
LC50 for acute toxicity on inhalation based on a four-hour 
exposure may be multiplied by four and the product substituted for the 
one-hour LC50 for acute toxicity on inhalation.
    (ii) When the provisions of this subchapter require the use of the 
LC50 for acute toxicity on inhalation of vapors based on a 
one-hour exposure and such data is not available, the LC50 
for acute toxicity on inhalation based on a four-hour exposure may be 
multiplied by two and the product substituted for the one-hour 
LC50 for acute toxicity on inhalation.
    (iii) A solid substance should be tested if at least 10 percent of 
its total mass is likely to be dust in a respirable range, e.g. the 
aerodynamic diameter of that particle-fraction is 10 microns or less. A 
liquid substance should be tested if a mist is likely to be generated in 
a leakage of the transport containment. In carrying out the test both 
for solid and liquid substances, more than 90% (by mass) of a specimen 
prepared for inhalation toxicity testing must be in the respirable range 
as defined in this paragraph (b)(3)(iii).
    (c) For purposes of classifying and assigning packing groups to 
mixtures possessing oral or dermal toxicity hazards according to the 
criteria in Sec. 173.133(a)(1), it is necessary to determine the acute 
LD50 of the mixture. If a mixture contains more than one 
active constituent, one of the following methods may be used to 
determine the oral or dermal LD50 of the mixture:
    (1) Obtain reliable acute oral and dermal toxicity data on the 
actual mixture to be transported;
    (2) If reliable, accurate data is not available, classify the 
formulation according to the most hazardous constituent of the mixture 
as if that constituent were present in the same concentration as the 
total concentration of all active constituents; or
    (3) If reliable, accurate data is not available, apply the formula:
    [GRAPHIC] [TIFF OMITTED] TR06MY97.000
    
    where:

C = the % concentration of constituent A, B ... Z in the mixture;
T = the oral LD50 values of constituent A, B ... Z;
TM = the oral LD50 value of the mixture.

    Note to formula in paragraph (c)(3): This formula also may be used 
for dermal toxicities provided that this information is available on the 
same species for all constituents. The use of this formula does not take 
into account any potentiation or protective phenomena.
    (d) The foregoing categories shall not apply if the Associate 
Administrator

[[Page 455]]

for Hazardous Materials Safety has determined that the physical 
characteristics of the material or its probable hazards to humans as 
shown by documented experience indicate that the material will not cause 
serious sickness or death.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66268, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-261, 
62 FR 24732, May 6, 1997; 62 FR 45702, August 28, 1997]



Sec. 173.133  Assignment of packing group and hazard zones for Division 6.1 materials.

    (a) The packing group of Division 6.1 materials shall be as assigned 
in Column 5 of the Sec. 172.101 Table. When the Sec. 172.101 Table 
provides more than one packing group or hazard zone for a hazardous 
material, the packing group and hazard zone shall be determined by 
applying the following criteria:
    (1) The packing group assignment for routes of administration other 
than inhalation of vapors shall be in accordance with the following 
table:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                 Oral toxicity LD50                                 Inhalation toxicity by dusts
         Packing Group                 (mg/kg)        Dermal toxicity LD50 (mg/kg)      and mists LC50 (mg/L)   
----------------------------------------------------------------------------------------------------------------
I..............................   5.....   40                  0.5             
II.............................  > 5,     > 40,  200          > 0.5, 2         
                                  50.                                                                           
III............................  solids: > 50,  200,  1000        > 2,  10         
                                  thn-eq> 200;                                                                  
                                  liquids: > 50,                                                                
                                   500.                                                              
----------------------------------------------------------------------------------------------------------------

    (2)(i) The packing group and hazard zone assignments for liquids 
(see Sec. 173.115(c) of this subpart for gases) based on inhalation of 
vapors shall be in accordance with the following Table:

                                                                        
------------------------------------------------------------------------
                                              Vapor concentration and   
              Packing Group                          toxicity           
------------------------------------------------------------------------
I (Hazard Zone A).......................  V  500 LC50 and    
                                           LC50  200 mL/M\3\.
I (Hazard Zone B).......................  V  10 LC50; LC50   
                                            1000 mL/m\3\; and
                                           the criteria for Packing     
                                           Group I, Hazard Zone A are   
                                           not met.                     
II......................................  V  LC50; LC50  3000 mL/m\3\; and the
                                           criteria for Packing Group I,
                                           are not met.                 
III.....................................  V  .2 LC50; LC50   
                                            5000 mL/m\3\; and
                                           the criteria for Packing     
                                           Groups I and II, are not met.
                                                                        
------------------------------------------------------------------------
Note 1: V is the saturated vapor concentration in air of the material in
  mL/m\3\ at 20C and standard atmospheric pressure.                     
Note 2: A liquid in Division 6.1 meeting criteria for Packing Group I,  
  Hazard Zones A or B stated in paragraph (a)(2) of this section is a   
  material poisonous by inhalation subject to the additional hazard     
  communication requirements in Secs.  172.203(m)(3), 172.313 and Table 
  1 of Sec.  172.504(e) of this subchapter.                             

    (ii) These criteria are represented graphically in Figure 1:

[[Page 456]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.063


[[Page 457]]


    (3) When the packing group determined by applying these criteria is 
different for two or more (oral, dermal or inhalation) routes of 
administration, the packing group assigned to the material shall be that 
indicated for the highest degree of toxicity for any of the routes of 
administration.
    (4) Notwithstanding the provisions of this paragraph, the packing 
group and hazard zone of a tear gas substance is as assigned in Column 5 
of the Sec. 172.101 Table.
    (b) The packing group and hazard zone for Division 6.1 mixtures that 
are poisonous (toxic) by inhalation may be determined by one of the 
following methods:
    (1) Where LC50 data is available on each of the poisonous 
(toxic) substances comprising the mixture--
    (i) The LC50 of the mixture is estimated using the 
formula:
[GRAPHIC] [TIFF OMITTED] TC02MR91.064

where fi=mole fraction of the ith component 
substance of the liquid.

LC50i=mean lethal concentration of the ith 
          component substance in ml/m3

    (ii) The volatility of each component substance is estimated using 
the formula:
[GRAPHIC] [TIFF OMITTED] TC02MR91.065

where:

Pi=partial pressure of the ith component substance in kPa at 
          20  deg.C and one atmospheric pressure. Pi may be calculated 
          according to Raoult's Law using appropriate activity 
          coefficients. Where activity coefficients are not available, 
          the coefficient may be assumed to be 1.0.

    (iii) The ratio of the volatility to the LC50 is 
calculated using the formula:
[GRAPHIC] [TIFF OMITTED] TC02MR91.066

    (iv) Using the calculated values LC50 (mixture) and R, the packing 
group for the mixture is determined as follows:

                                                                        
------------------------------------------------------------------------
     Packaging group (hazard zone)         Ratio of volatility and LC50 
------------------------------------------------------------------------
I (Hazard Zone A)......................  R  500 and LC50     
                                          (mixture)  200 ml/ 
                                          m\3\.                         
I (Hazard Zone B)......................  R  10 and LC50      
                                          (mixture)  1000 ml/
                                          m\3\; and the criteria for    
                                          Packing Group I, Hazard Zone  
                                          A, are not met.               
II.....................................  R  1 and LC50       
                                          (mixture)  3000 ml/
                                          m\3\; and the criteria for    
                                          Packing Group I, Hazard Zones 
                                          A and B are not met.          
III....................................  R  1/5 and LC50     
                                          (mixture)  5000 ml/
                                          m\3\; and the criteria for    
                                          Packing Group I, Hazard Zones 
                                          A and B, and Packing Group II 
                                          are not met.                  
------------------------------------------------------------------------

    (2) In the absence of LC50 data on the poisonous (toxic) constituent 
substances, the mixture may be assigned a packing group and hazard zone 
based on the following simplified threshold toxicity tests. When these 
threshold tests are used, the most restrictive packing group and hazard 
zone must be determined and used for the transportation of the mixture.
    (i) A mixture is assigned to Packing Group I, Hazard Zone A only if 
both the following criteria are met:
    (A) A sample of the liquid mixture is vaporized and diluted with air 
to create a test atmosphere of 200 ml/m\3\ vaporized mixture in air. Ten 
albino rats (five male and five female) are exposed to the test 
atmosphere as determined by an analytical method appropriate for the 
material being classified for one hour and observed for fourteen days. 
If five or more of the animals die within the fourteen-day observation 
period, the mixture is presumed to have an LC50 equal to or less than 
200 ml/m\3\.
    (B) A sample of the vapor in equilibrium with the liquid mixture is 
diluted with 499 equal volumes of air to form a test atmosphere. Ten 
albino rats (five male and five female) are exposed to the test 
atmosphere for one hour and observed for fourteen days. If five or more 
of the animals die within the fourteen-day observation period, the 
mixture is presumed to have a volatility equal to or greater than 500 
times the mixture LC50.
    (ii) A mixture is assigned to Packing Group I, Hazard Zone B only if 
both the following criteria are met, and the mixture does not meet the 
criteria for Packing Group I, Hazard Zone A:
    (A) A sample of the liquid mixture is vaporized and diluted with air 
to create

[[Page 458]]

a test atmosphere of 1000 ml/m\3\ vaporized mixture in air. Ten albino 
rats (five male and five female) are exposed to the test atmosphere for 
one hour and observed for fourteen days. If five or more of the animals 
die within the fourteen-day observation period, the mixture is presumed 
to have an LC50 equal to or less than 1000 ml/m\3\.
    (B) A sample of the vapor in equilibrium with the liquid mixture is 
diluted with 9 equal volumes of air to form a test atmosphere. Ten 
albino rats (five male and five female) are exposed to the test 
atmosphere for one hour and observed for fourteen days. If five or more 
of the animals die within the fourteen-day observation period, the 
mixture is presumed to have a volatility equal to or greater than 10 
times the mixture LC50.
    (iii) A mixture is assigned to Packing Group II only if both the 
following criteria are met, and the mixture does not meet the criteria 
for Packing Group I (Hazard Zones A or B):
    (A) A sample of the liquid mixture is vaporized and diluted with air 
to create a test atmosphere of 3000 ml/m\3\ vaporized mixture in air. 
Ten albino rats (five male and five female) are exposed to the test 
atmosphere for one hour and observed for fourteen days. If five or more 
of the animals die within the fourteen-day observation period, the 
mixture is presumed to have an LC50 equal to or less than 3000 ml/m\3\.
    (B) A sample of the vapor in equilibrium with the liquid mixture is 
used to form a test atmosphere. Ten albino rats (five male and five 
female) are exposed to the test atmosphere for one hour and observed for 
fourteen days. If five or more of the animals die within the fourteen-
day observation period, the mixture is presumed to have a volatility 
equal to or greater than the mixture LC50.
    (iv) A mixture is assigned to Packing Group III only if both the 
following criteria are met, and the mixture does not meet the criteria 
for Packing Groups I (Hazard Zones A or B) or Packing Group II (Hazard 
Zone C):
    (A) A sample of the liquid mixture is vaporized and diluted with air 
to create a test atmosphere of 5000 ml/m\3\ vaporized mixture in air. 
Ten albino rats (five male and five female) are exposed to the test 
atmosphere for one hour and observed for fourteen days. If five or more 
of the animals die within the fourteen-day observation period, the 
mixture is presumed to have an LC50 equal to or less than 5000 ml/m\3\.
    (B) The vapor pressure of the liquid mixture is measured and if the 
vapor concentration is equal to or greater than 1000 ml/m\3\, the 
mixture is presumed to have a volatility equal to or greater than \1/5\ 
the mixture LC50.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66268-
66270, Dec. 20, 1991; 57 FR 45461-45463, Oct. 1, 1992; Amdt. 173-234, 58 
FR 51532, Oct. 1, 1993; Amdt. 173-138, 59 FR 49133, Sept. 26, 1994; 
Amdt. 173-255, 61 FR 50626, Sept. 26, 1996]



Sec. 173.134  Class 6, Division 6.2--Definitions, exceptions and packing group assignments.

    (a) Definitions. For the purposes of this subchapter, the categories 
of materials that constitute Division 6.2 are defined as follows:
    (1) An infectious substance means a viable microorganism, or its 
toxin, that causes or may cause disease in humans or animals, and 
includes those agents listed in 42 CFR 72.3 of the regulations of the 
Department of Health and Human Services and any other agent that causes 
or may cause severe, disabling or fatal disease. The terms infectious 
substance and etiologic agent are synonymous.
    (2) A diagnostic specimen means any human or animal material 
including, but not limited to, excreta, secreta, blood, blood 
components, tissue, and tissue fluids, being shipped for purposes of 
diagnosis.
    (3) A biological product means a material that is prepared and 
manufactured in accordance with the provisions of 9 CFR part 102 
(Licenses for biological products), 9 CFR part 103 (Experimental 
products, distribution, and evaluation of biological products prior to 
licensing), 9 CFR part 104 (Permits for biological products), 21 CFR 
part 312 (Investigational new drug application), or 21 CFR parts 600 to 
680 (Biologics).
    (4) A regulated medical waste means a waste or reusable material, 
other than

[[Page 459]]

a culture or stock of an infectious substance, that contains an 
infectious substance and is generated in--
    (i) The diagnosis, treatment or immunization of human beings or 
animals;
    (ii) Research pertaining to the diagnosis, treatment or immunization 
of human beings or animals; or
    (iii) The production or testing of biological products.
    (b) Exceptions. (1) The following are not subject to any 
requirements of this subchapter if the items as packaged do not contain 
any material otherwise subject to the requirements of this subchapter:
    (i) Biological products;
    (ii) Diagnostic specimens;
    (iii) Laundry or medical equipment that conforms to 29 CFR 1910.1030 
of the regulations of the Occupational Safety and Health Administration 
of the Department of Labor;
    (iv) A material, including waste, that previously contained an 
infectious substance and has been treated by steam sterilization, 
chemical disinfection, or other appropriate method, so that it no longer 
poses the hazard of an infectious substance;
    (v) Any waste material, including garbage, trash and sanitary waste 
in septic tanks, derived from households, including but not limited to 
single and multiple residences, hotels and motels;
    (vi) Corpses, remains and anatomical parts that are intended for 
ceremonial interment or cremation; and
    (vii) Animal waste generated in animal husbandry or food production.
    (2) A hazardous waste is not subject to regulation as a regulated 
medical waste.
    (3) A regulated medical waste that is transported by a private or 
contract carrier is excepted from--
    (i) The requirement of an ``INFECTIOUS SUBSTANCE'' label if the 
outer packaging is marked with a ``BIOHAZARD'' marking in accordance 
with 29 CFR 1910.1030; and
    (ii) For other than a waste culture or stock of an infectious 
substance, the specific packaging requirements of Sec. 173.197, if 
packaged in a rigid non-bulk packaging conforming to--
    (A) The general packaging requirements of Secs. 173.24 and 173.24a; 
and
    (B) Packaging requirements specified in 29 CFR 1910.1030.
    (4) A waste culture or stock of infectious substances may be offered 
for transportation and transported as a regulated medical waste when the 
culture or stock--
    (i) Conforms to Biosafety Level 1, 2 or 3, as defined in HHS 
Publication No. (CDC) 93-8395, Biosafety in Microbiological and 
Biomedical Laboratories. 3rd Edition, May 1993, Section II;
    (ii) Is packaged in accordance with requirements specified in 
Sec. 173.197; and
    (iii) Is transported by a private or contract carrier using a 
vehicle dedicated to the transportation of medical waste.
    (c) Assignment of packing groups and applicable packaging sections. 
(1) Division 6.2 materials, other than regulated medical waste, are not 
assigned a packing group. Packaging requirements for these materials are 
prescribed in Sec. 173.196.
    (2) Except as otherwise provided, regulated medical waste is 
assigned to Packing Group II and must be packaged as specified in 
Sec. 173.197.
[Amdt. 173-247, 60 FR 48787, Sept. 20, 1995, as amended by Amdt. 173-
255, 61 FR 50626, Sept. 26, 1996]



Sec. 173.136  Class 8--Definitions.

    (a) For the purpose of this subchapter, ``corrosive material'' 
(Class 8) means a liquid or solid that causes full thickness destruction 
of human skin at the site of contact within a specified period of time. 
A liquid that has a severe corrosion rate on steel or aluminum based on 
the criteria in Sec. 173.137(c)(2) is also a corrosive material.
    (b) If human experience or other data indicate that the hazard of a 
material is greater or less than indicated by the results of the tests 
specified in paragraph (a) of this section, RSPA may revise its 
classification or make the determination that the material is not 
subject to the requirements of this subchapter.
    (c) Skin corrosion test data produced no later than September 30, 
1995, using the procedures of Part 173, Appendix A, in effect on 
September 30, 1995 (see 49 CFR Part 173, Appendix A, revised as of

[[Page 460]]

October 1, 1994) for appropriate exposure times may be used for 
classification and assignment of packing group for Class 8 materials 
corrosive to skin.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-241, 
59 FR 67508, Dec. 29, 1994; Amdt. 173-261, 62 FR 24732, May 6, 1997]



Sec. 173.137  Class 8--Assignment of packing group.

    The packing group of Class 8 material is indicated in Column 5 of 
the Sec. 172.101 Table. When the Sec. 172.101 Table provides more than 
one packing group for a Class 8 material, the packing group must be 
determined using data obtained from tests conducted in accordance with 
the 1992 OECD Guideline for Testing of Chemicals, Number 404 ``Acute 
Dermal Irritation/Corrosion'' as follows:
    (a) Packing Group I. Materials that cause full thickness destruction 
of intact skin tissue within an observation period of up to 60 minutes 
starting after the exposure time of three minutes or less.
    (b) Packing Group II. Materials other than those meeting Packing 
Group I criteria that cause full thickness destruction of intact skin 
tissue within an observation period of up to 14 days starting after the 
exposure time of more than three minutes but not more than 60 minutes.
    (c) Packing Group III. Materials, other than those meeting Packing 
Group I or II criteria--
    (1) That cause full thickness destruction of intact skin tissue 
within an observation period of up to 14 days starting after the 
exposure time of more than 60 minutes but not more than 4 hours; or
    (2) That do not cause full thickness destruction of intact skin 
tissue but exhibit a corrosion rate on steel or aluminum surfaces 
exceeding 6.25 mm (0.25 inch) a year at a test temperature of 55 deg.C 
(130 deg.F). For the purpose of testing steel P3 (ISO 9328-1) or a 
similar type, and for testing aluminum, non-clad types 7075-T6 or AZ5GU-
T6 should be used. An acceptable test is described in ASTM G 31-72 
(Reapproved 1995).
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67508, Dec. 29, 1994; Amdt. 173-261, 
62 FR 24733, May 6, 1997]



Sec. 173.140  Class 9--Definitions.

    For the purposes of this subchapter, miscellaneous hazardous 
material (Class 9) means a material which presents a hazard during 
transportation but which does not meet the definition of any other 
hazard class. This class includes:
    (a) Any material which has an anesthetic, noxious or other similar 
property which could cause extreme annoyance or discomfort to a flight 
crew member so as to prevent the correct performance of assigned duties; 
or
    (b) Any material that meets the definition in Sec. 171.8 of this 
subchapter for an elevated temperature material, a hazardous substance, 
a hazardous waste, or a marine pollutant.
[Amdt. 173-224, 57 FR 45463, Oct. 1, 1992, as amended by Amdt. 173-231, 
57 FR 52939, Nov. 5, 1992; Amdt. 173-233, 58 FR 33305, June 16, 1993]



Sec. 173.141  Class 9--Assignment of packing group.

    The packing group of a Class 9 material is as indicated in Column 5 
of the Sec. 172.101 Table.



Sec. 173.144  Other Regulated Materials (ORM)--Definitions.

    For the purpose of this subchapter, ``ORM-D material'' means a 
material such as a consumer commodity, which, although otherwise subject 
to the regulations of this subchapter, presents a limited hazard during 
transportation due to its form, quantity and packaging. It must be a 
material for which exceptions are provided in the Sec. 172.101 Table. 
Each ORM-D material and category of ORM-D material is listed in the 
Sec. 172.101 Table.



Sec. 173.145  Other Regulated Materials--Assignment of packing group.

    Packing groups are not assigned to ORM-D materials.

[[Page 461]]



Sec. 173.150  Exceptions for Class 3 (flammable) and combustible liquids.

    (a) General. Exceptions for hazardous materials shipments in the 
following paragraphs are permitted only if this section is referenced 
for the specific hazardous material in the Sec. 172.101 Table of this 
subchapter and the material does not meet the definition of another 
hazard class except Division 6.1, Packing Group III or Class 8, Packing 
Group III.
    (b) Limited quantities. Limited quantities of flammable liquids 
(Class 3) and combustible liquids are excepted from labeling 
requirements, unless offered for transportation or transported by 
aircraft, and the specification packaging requirements of this 
subchapter when packaged in combination packagings according to this 
paragraph. In addition, shipments of limited quantities are not subject 
to subpart F (Placarding) of part 172 of this subchapter. Each package 
must conform to the packaging requirements of subpart B of this part and 
may not exceed 30 kg (66 pounds) gross weight. The following combination 
packagings are authorized:
    (1) For flammable liquids in Packing Group I, inner packagings not 
over 0.5 L (0.1 gallon) net capacity each, packed in strong outer 
packagings;
    (2) For flammable liquids in Packing Group II, inner packagings not 
over 1.0 L (0.3 gallon) net capacity each, packed in strong outer 
packaging; and
    (3) For flammable liquids in Packing Group III and combustible 
liquids, inner packagings not over 5.0 L (1.3 gallons) net capacity 
each, packed in strong outer packagings.
    (c) Consumer commodities. A limited quantity which conforms to the 
provisions of paragraph (b) of this section and is a ``consumer 
commodity'' as defined in Sec. 171.8 of this subchapter, may be renamed 
``Consumer commodity'' and reclassed as ORM-D material. In addition to 
the exceptions provided by paragraph (b) of this section, shipments of 
ORM-D materials are not subject to the shipping paper requirements of 
subpart C of part 172 of this subchapter, unless the material meets the 
definition of a hazardous substance, a hazardous waste, or a marine 
pollutant unless offered for transportation or transported by aircraft, 
and are eligible for the exceptions provided in Sec. 173.156.
    (d) Alcoholic beverages. An alcoholic beverage (wine and distilled 
spirits as defined in 27 CFR 4.10 and 5.11) is not subject to the 
requirements of this subchapter if it--
    (1) Contains 24 percent or less alcohol by volume;
    (2) Is in an inner packaging of five liters or less; or
    (3) Is a Packing Group III alcoholic beverage in a packaging of 250 
L (66 gallons) or less, unless transported by air.
    (e) Aqueous solutions of alcohol. An aqueous solution containing 24 
percent or less alcohol by volume and no other hazardous material--
    (1) May be reclassed as a combustible liquid; and
    (2) Is not subject to the requirements of this subchapter if it 
contains no less than 50 percent water.
    (f) Combustible liquids. (1) A flammable liquid with a flash point 
at or above 38  deg.C (100 deg.F) that does not meet the definition of 
any other hazard class may be reclassed as a combustible liquid. This 
provision does not apply to transportation by vessel or aircraft, except 
where other means of transportation is impracticable.
    (2) The requirements in this subchapter do not apply to a material 
classed as a combustible liquid in a non-bulk packaging unless the 
combustible liquid is a hazardous substance, a hazardous waste, or a 
marine pollutant.
    (3) A combustible liquid that is in a bulk packaging or a 
combustible liquid that is a hazardous substance, a hazardous waste, or 
a marine pollutant is not subject to the requirements of this subchapter 
except those pertaining to:
    (i) Shipping papers, waybills, switching orders, and hazardous waste 
manifests;
    (ii) Marking of packages;
    (iii) Display of identification numbers on bulk packages;
    (iv) Placarding requirements of subpart F of part 172 of this 
subchapter;
    (v) Carriage aboard aircraft and vessels (for packaging requirements 
for transport by vessel, see Sec. 176.340 of this subchapter);

[[Page 462]]

    (vi) Reporting incidents as prescribed by Secs. 171.15 and 171.16 of 
this subchapter;
    (vii) Packaging requirements of subpart B of this part and, in 
addition, non-bulk packagings must conform with requirements of 
Sec. 173.203; and
    (viii) The requirements of Secs. 173.1, 173.21, 173.24, 173.24a, 
173.24b, 174.1, 177.804, 177.817, and 177.834 of this subchapter.
    (4) A combustible liquid that is not a hazardous substance, a 
hazardous waste, or a marine pollutant is not subject to the 
requirements of this subchapter if it is a mixture of one or more 
components that--
    (i) Has a flash point at or above 93  deg.C (200  deg.F),
    (ii) Comprises at least 99 percent of the volume of the mixture, and
    (iii) Is not offered for transportation or transported as a liquid 
at a temperature at or above its flash point.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992; Amdt. 173-231, 57 FR 52939, 
Nov. 5, 1992; Amdt. 173-233, 58 FR 33305, June 16, 1993; Amdt. 173-241, 
59 FR 67508, Dec. 29, 1994; Amdt. 173-242, 60 FR 26806, May 18, 1995; 
Amdt. 173-246, 60 FR 49110, Sept. 21, 1995]



Sec. 173.151  Exceptions for Class 4.

    (a) General. Exceptions for hazardous materials shipments in the 
following paragraphs are permitted only if this section is referenced 
for the specific hazardous material in the Sec. 172.101 Table of this 
subchapter.
    (b) Limited quantities of Division 4.1 flammable solids. Limited 
quantities of flammable solids (Division 4.1) in Packing Groups II and 
III are excepted from labeling, unless offered for transportation or 
transported by aircraft, and the specification packaging requirements of 
this subchapter when packaged in combination packagings according to 
this paragraph. In addition, shipments of limited quantities are not 
subject to subpart F (Placarding) of part 172 of this subchapter. Each 
package must conform to the packaging requirements of subpart B of this 
part and may not exceed 30 kg (66 pounds) gross weight. The following 
combination packagings are authorized:
    (1) For flammable solids in Packing Group II, inner packagings not 
over 1.0 kg (2.2 pounds) net capacity each, packed in strong outer 
packagings; and
    (2) For flammable solids in Packing Group III, inner packagings not 
over 5.0 kg (11 pounds) net capacity each, packed in strong outer 
packagings.
    (c) Consumer commodities. A limited quantity which conforms to the 
provisions of paragraph (b) of this section, and charcoal briquettes in 
packagings not exceeding 30 kg (66 pounds) gross weight, may be renamed 
``Consumer commodity'' and reclassed as ORM-D material, if the material 
is a ``consumer commodity'' as defined in Sec. 171.8 of this subchapter. 
In addition to the exceptions provided by paragraph (b) of this section, 
shipments are not subject to the shipping paper requirements of subpart 
C of part 172 of this subchapter, unless the material meets the 
definition of a hazardous substance, a hazardous waste, or a marine 
pollutant or unless offered for transportation or transported by 
aircraft, and are eligible for the exceptions provided in Sec. 173.156.
    (d) Limited quantities of Division 4.3 (dangerous when wet) 
material. Limited quantities of Division 4.3 (dangerous when wet) solids 
in Packing Groups II and III are excepted from labeling, unless offered 
for transportation or transported by aircraft, and the specification 
packaging requirements of this subchapter when packaged in combination 
packagings according to this paragraph. In addition, shipments of 
limited quantities are not subject to subpart F (Placarding) of part 172 
of this subchapter. Each package must conform to the packaging 
requirements of subpart B of this part and may not exceed 30 kg (66 
pounds) gross weight. The following combination packagings are 
authorized:
    (1) For Division 4.3 solids in Packing Group II, inner packagings 
not over 0.5 kg (1.1 pound) net capacity each, packed in strong outer 
packagings; and
    (2) For Division 4.3 solids in Packing Group III, inner packagings 
not over 1

[[Page 463]]

kg (2.2 pounds) net capacity each, packed in strong outer packagings.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended by Amdt. 173-231, 
57 FR 52940, Nov. 5, 1992; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; 
Amdt. 173-255, 61 FR 50626, Sept. 26, 1996]



Sec. 173.152  Exceptions for Division 5.1 (oxidizers) and Division 5.2 (organic peroxides).

    (a) General. Exceptions for hazardous materials shipments in the 
following paragraphs are permitted only if this section is referenced 
for the specific hazardous material in the Sec. 172.101 Table of this 
subchapter.
    (b) Limited quantities. Limited quantities of oxidizers (Division 
5.1) in Packing Groups II and III and organic peroxides (Division 5.2) 
are excepted from labeling, unless offered or intended for 
transportation by aircraft, and the specification packaging requirements 
of this subchapter when packaged in combination packagings according to 
this paragraph. In addition, shipments of these limited quantities are 
not subject to subpart F of part 172 (Placarding) of this subchapter. 
Each package must conform to the packaging requirements of subpart B of 
this part and may not exceed 30 kg (66 pounds) gross weight. The 
following combination packagings are authorized:
    (1) For oxidizers in Packing Group II, inner packagings not over 1.0 
L (0.3 gallon) net capacity each for liquids or not over 1.0 kg (2.2 
pounds) net capacity each for solids, packed in strong outer packagings.
    (2) For oxidizers in Packing Group III, inner packagings not over 
4.0 L (1 gallon) net capacity each for liquids or not over 5.0 kg (11 
pounds) net capacity each for solids, packed in strong outer packagings.
    (3) For organic peroxides which do not require temperature control 
during transportation--
    (i) For Type D, E, or F organic peroxides, inner packagings not over 
125 ml (4.22 ounces) net capacity each for liquids or 500 g (17.64 
ounces) net capacity for solids, packed in strong outer packagings.
    (ii) For Type B or C organic peroxides, inner packagings not over 25 
ml (0.845 ounces) net capacity each for liquids or 100 g (3.528 ounces) 
net capacity for solids, packed in strong outer packagings.
    (4) For polyester resin kits consisting of a base material component 
(Class 3, Packing Group II or III) and an activator component (Type C, 
D, E, or F organic peroxide which does not require temperature 
control)--
    (i) the organic peroxide component must be packed in inner 
packagings not over 125 ml (4.22 ounces) net capacity each for liquids 
or 500 g (17.64 ounces) net capacity each for solids;
    (ii) The flammable liquid component must be packed in inner 
packagings not over 1.0 L (0.3 gallons) net capacity each for Packing 
Group II liquids or 5.0 L (1.3 gallons) net capacity each for Packing 
Group III liquids; and
    (iii) The flammable liquid component and the organic peroxide 
component may be packed in the same strong outer packaging provided they 
will not interact dangerously in the event of leakage.
    (c) Consumer commodities. A limited quantity which conforms to the 
provisions of paragraph (b) of this section and is a ``consumer 
commodity'' as defined in Sec. 171.8 of this subchapter, may be renamed 
``Consumer commodity'' and reclassed as ORM-D material. In addition to 
the exceptions provided by paragraph (b) of this section, shipments are 
not subject to the shipping paper requirements of subpart C of part 172 
of this subchapter, unless the material meets the definition of a 
hazardous substance, a hazardous waste, or a marine pollutant or unless 
offered for transportation or transported by aircraft, and are eligible 
for the exceptions provided in Sec. 173.156.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended by Amdt. 173-231, 
57 FR 52940, Nov. 5, 1992; Amdt. 173-241, 59 FR 67508, Dec. 29, 1994; 
Amdt. 173-261, 62 FR 24733, May 6, 1997]



Sec. 173.153  Exceptions for Division 6.1 (poisonous materials).

    (a) General. Exceptions for hazardous materials shipments in the 
following paragraphs are permitted only if this section is referenced 
for the specific hazardous material in the Sec. 172.101 Table of this 
subchapter.

[[Page 464]]

    (b) Limited quantities of Division 6.1 materials. Limited quantities 
of poisonous materials (Division 6.1) in Packing Group III are excepted 
from the specification packaging requirements of this subchapter when 
packaged in combination packagings according to this paragraph. In 
addition, shipments of these limited quantities are not subject to 
subpart F of part 172 (Placarding) of this subchapter. Each package must 
conform to the packaging requirements of subpart B of this part and may 
not exceed 30 kg (66 pounds) gross weight. The following combination 
packagings are authorized:
    (1) For poisonous liquids, inner packagings not over 4.0 L (1 
gallon) net capacity each, packed in strong outer packagings; and
    (2) For poisonous solids, inner packagings not over 5.0 kg (11 
pounds) net capacity each, packed in strong outer packagings.
    (c) Consumer commodities. The following provisions apply to consumer 
commodities:
    (1) A limited quantity which conforms to the provisions of paragraph 
(b) of this section and is a ``consumer commodity'' as defined in 
Sec. 171.8 of this subchapter, may be renamed ``Consumer commodity'' and 
reclassed as ORM-D material.
    (2) A poisonous material which is a drug or medicine and is a 
``consumer commodity'' as defined in Sec. 171.8 of this subchapter, may 
be renamed ``Consumer commodity'' and reclassed as ORM-D material if 
packaged in a combination packaging not exceeding 30 kg (66 pounds) with 
inner packagings not over 250 ml (8 ounces) net capacity for liquids or 
250 g (8.8 ounces) net capacity for solids packed in strong outer 
packagings. Each package must conform to the packaging requirements of 
subpart B of this part.
    (3) Packages of ORM-D material are excepted from the specification 
packaging requirements of this subchapter and from the labeling 
requirements of subpart E of part 172 of this subchapter. Shipments of 
ORM-D material are eligible for the exceptions provided in Sec. 173.156 
and in paragraph (b) of this section and are not subject to the shipping 
paper requirements of subpart C of part 172 of this subchapter, unless 
the material meets the definition of a hazardous substance, a hazardous 
waste, or a marine pollutant or unless offered for transportation or 
transported by aircraft.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended by Amdt. 173-231, 
57 FR 52940, Nov. 5, 1992]



Sec. 173.154  Exceptions for Class 8 (corrosive materials).

    (a) General. Exceptions for hazardous materials shipments in the 
following paragraphs are permitted only if this section is referenced 
for the specific hazardous material in the Sec. 172.101 Table of this 
subchapter.
    (b) Limited quantities. Limited quantities of corrosive materials 
(Class 8) in Packing Groups II and III are excepted from labeling, 
unless offered or intended for transportation by aircraft, and the 
specification packaging requirements of this subchapter when packaged in 
combination packagings according to this paragraph. In addition, 
shipments of these limited quantities are not subject to subpart F 
(Placarding) of part 172 of this subchapter. Each package must conform 
to the packaging requirements of subpart B of this part and may not 
exceed 30 kg (66 pounds) gross weight. The following combination 
packagings are authorized:
    (1) For corrosive materials in Packing Group II, in inner packagings 
not over 1.0 L (0.3 gallon) net capacity each for liquids or not over 
1.0 kg (2.2 pounds) net capacity each for solids, packed in strong outer 
packagings.
    (2) For corrosive materials in Packing Group III, in inner 
packagings not over 4.0 L (1 gallon) net capacity each for liquids or 
not over 5.0 kg (11 pounds) net capacity each for solids, packed in 
strong outer packagings.
    (c) Consumer commodities. A limited quantity which conforms to the 
provisions of paragraph (b) of this section and is a ``consumer 
commodity'' as defined in Sec. 171.8 of this subchapter may be renamed 
``Consumer commodity'' and reclassed as ORM-D material. In addition to 
the exceptions provided by paragraph (b) of this section, shipments of 
ORM-D materials are not subject to the shipping paper requirements

[[Page 465]]

of subpart C of part 172 of this subchapter, unless the material meets 
the definition of a hazardous substance, a hazardous waste, or a marine 
pollutant or unless offered or intended for transportation by aircraft, 
and are eligible for the exceptions provided in Sec. 173.156.
    (d) Materials corrosive to aluminum or steel only. Except for a 
hazardous substance, a hazardous waste, or a marine pollutant, a 
material classed as a Class 8, Packing Group III, material solely 
because of its corrosive effect--
    (1) On aluminum is not subject to any other requirements of this 
subchapter when transported by motor vehicle or rail car in a packaging 
constructed of materials that will not react dangerously with or be 
degraded by the corrosive material; or
    (2) On steel is not subject to any other requirements of this 
subchapter when transported by motor vehicle or rail car in a bulk 
packaging constructed of materials that will not react dangerously with 
or be degraded by the corrosive material.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992; Amdt. 173-231, 57 FR 52940, 
Nov. 5, 1992]



Sec. 173.155  Exceptions for Class 9 (miscellaneous hazardous materials).

    (a) General. Exceptions for hazardous materials shipments in the 
following paragraphs are permitted only if this section is referenced 
for the specific hazardous material in the Sec. 172.101 Table of this 
subchapter.
    (b) Limited quantities. Limited quantities of miscellaneous 
hazardous materials (Class 9) are excepted from labeling, unless offered 
or intended for transportation by aircraft, and the specification 
packaging requirements of this subchapter when packaged in combination 
packagings according to this paragraph. In addition, shipments of these 
limited quantities are not subject to subpart F (Placarding) of part 172 
of this subchapter. Each package must conform to the packaging 
requirements of subpart B of this part and may not exceed 30 kg (66 
pounds) gross weight. The following combination packagings are 
authorized:
    (1) For liquids, inner packagings not over 5.0 L (1.3 gallons) net 
capacity each. packed in strong outer packagings.
    (2) For solids, inner packagings not over 5.0 kg (11 pounds) net 
capacity each, packed in strong outer packagings.
    (c) Consumer commodities. A limited quantity which conforms to the 
provisions of paragraph (b) of this section and is a ``consumer 
commodity'' as defined in Sec. 171.8 of this subchapter, may be renamed 
``Consumer commodity'' and reclassed as ORM-D material. In addition to 
the exceptions provided by paragraph (b) of this section, shipments of 
ORM-D materials are not subject to the shipping paper requirements of 
subpart C of part 172 of this subchapter, unless the material meets the 
definition of a hazardous substance, a hazardous waste, or a marine 
pollutant or unless offered for transportation or transported by 
aircraft, and are eligible for the exceptions provided in Sec. 173.156.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; Amdt. 173-231, 57 FR 52940, Nov. 5, 1992; Amdt. 173-253, 
61 FR 27174, May 30, 1996]



Sec. 173.156  Exceptions for ORM materials.

    (a) Exceptions for hazardous materials shipments in the following 
paragraphs are permitted only if this section is referenced for the 
specific hazardous material in the Sec. 172.101 Table or in a packaging 
section in this part.
    (b) ORM-D. Packagings for ORM-D materials are specified according to 
hazard class in Secs. 173.150 through 173.155 and in Sec. 173.306. In 
addition to other exceptions specified for ORM-D materials in this part:
    (1) Strong outer packagings as specified in this part, the marking 
requirements specified in Sec. 172.316 of this subchapter, and the 30 kg 
(66 pounds) gross weight limitation are not required for materials 
classed as ORM-D when--
    (i) Unitized in cages, carts, boxes or similar overpacks;
    (ii) Offered for transportation or transported by:
    (A) Rail;
    (B) Private or contract motor carrier; or

[[Page 466]]

    (C) Common carrier in a vehicle under exclusive use for such 
service; and
    (iii) Transported to or from a manufacturer, a distribution center, 
or a retail outlet, or transported to a disposal facility from one 
offeror.
    (2) The 30 kg (66 pounds) gross weight limitation does not apply to 
materials classed as ORM-D when offered for transportation, or 
transported, by highway or rail between a manufacturer, a distribution 
center, and a retail outlet provided--
    (i) Inner packagings conform to the quantity limits for inner 
packagings specified in Secs. 173.150(b), 173.152(b), 173.154(b), 
173.155(b) and 173.306 (a) and (b), as appropriate;
    (ii) The inner packagings are packed into corrugated fiberboard 
trays to prevent them from moving freely;
    (iii) The trays are placed in a fiberboard box which is banded and 
secured to a wooden pallet by metal, fabric, or plastic straps, to form 
a single palletized unit;
    (iv) The package conforms to the general packaging requirements of 
subpart B of this part;
    (v) The maximum net quantity of hazardous material permitted on one 
palletized unit is 250 kg (550 pounds); and
    (vi) The package is properly marked in accordance with Sec. 172.316 
of this subchapter.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992; Amdt. 173-255, 61 FR 50626, 
Sept. 26, 1996]



Subpart E--Non-bulk Packaging for Hazardous Materials Other Than Class 1 
                               and Class 7

    Source:  Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, unless otherwise 
noted.



Sec. 173.158  Nitric acid.

    (a) Nitric acid exceeding 40 percent concentration may not be 
packaged with any other material.
    (b) Nitric acid in any concentration which does not contain sulfuric 
acid or hydrochloric acid as impurities, when offered for transportation 
or transported by rail, highway, or water shall be packaged in 
specification containers as follows:
    (1) 1A1 stainless steel drums are authorized, subject to the 
following limitations:
    (i) Stainless steel used in drums must conform to the following 
thicknesses:

                                                                        
------------------------------------------------------------------------
   Nominal (marked) capacity (in      Minimum thickness (in millimeters)
        liters) of 1A1 drum                   of stainless steel        
------------------------------------------------------------------------
                 55                                  0.9                
                115                                  1.2                
                210                                  1.5                
                450                                  2.0                
------------------------------------------------------------------------

    (ii) Drums weighing less than 85 percent of their original tare 
weight may not be used.
    (iii) Type 304 or other grades of equivalent corrosion-resistant 
steels in the as-welded condition are permissible for nitric acid 
concentrations up to and including 78 percent.
    (iv) For all concentrations of nitric acid, the following are 
permissible:
    (A) Type 304 heat-treated (quenched in water at 1040  deg.C (1900 
deg.F)),
    (B) Stabilized Type 347 in the as-welded condition,
    (C) Stabilized Type 347 stress-relieved (845-900  deg.C (1550-1650 
deg.F)),
    (D) Stabilized Type 347 heat-treated (quenched in water at 1040 
deg.C (1900  deg.F)), or
    (E) Other grades of equivalent corrosion resistance.
    (v) All parts of drum exposed to lading must be capable of 
withstanding the corrosive effect of nitric acid to the extent that 65 
percent boiling nitric acid does not penetrate the metal more than 
0.0381 mm (0.002 inches) per month. (ASTM A 262-68 may be used for a 
suitable corrosion test procedure.)
    (vi) In addition to marking required by Sec. 178.503 of this 
subchapter, the following marks, in lettering of at least 12.7 mm (0.5 
inch) height, must be placed on drums used to transport nitric acid:
    (A) The type of steel used in body and head sheets as identified by 
American Iron and Steel Institute type number, and, in addition, the 
letters ``HT'' following the steel designation on containers subject to 
stress relieving or heat treatment during manufacture.
    (B) The thickness in millimeters of metal in thinnest part. When the 
thickness of metal in the body differs

[[Page 467]]

from that in the head, both must be indicated with slanting line between 
and with the gauge of the body indicated first.
    (C) Original tare weight in kilograms, preceded by the letters 
``TW.''

An example of the markings required by paragraphs (b)(1)(vi) (A), (B), 
and (C) of this section is ``304HT/1.9/2.7/TW55.''
    (2) 4H1 expanded plastics outer packagings with glass inner 
receptacles of not greater than 2.5 L (0.66 gallon) capacity each. No 
more than four 2.5 L (0.66 gallon) inner receptacles may be packed in 
one outer packaging.
    (c) Nitric acid of 80 percent or greater concentration which does 
not contain sulfuric acid or hydrochloric acid as impurities, when 
offered for transportation or transported by rail, highway, or water may 
be packaged in 1B1 aluminum drums.
    (d) Nitric acid of 90 percent or greater concentration, when offered 
for transportation or transported by rail, highway, or water may be 
packaged as follows:
    (1) In 4C1, 4C2, 4D or 4F wooden boxes with inner packagings 
consisting of glass bottles further individually overpacked in tightly 
closed metal packagings. Glass bottles must be of 2.5 L (0.66 gallon) or 
less capacity and cushioned with a non-reactive, absorbent material 
within the metal packagings.
    (2) In combination packagings with 1A2, 1B2, 1D, 1G, 1H2, 3H2 or 4G 
outer packagings with inner glass packagings of 2.5 L (0.66 gallons) or 
less capacity cushioned with a non-reactive, absorbent material and 
packed within a tightly closed intermediate packaging of metal or 
plastic.
    (e) Nitric acid of less than 90 percent concentration, when offered 
for transportation or transported by rail, highway, or water may be 
packaged in 4G fiberboard boxes or 4C1, 4C2, 4D or 4F wooden boxes with 
inside glass packagings of not over 2.5 L (0.66 gallon) capacity each.
    (f) Nitric acid of 70 percent or less concentration, when offered 
for transportation or transported by rail, highway, or water, may be 
packaged as follows:
    (1) In composite packagings 6PA1, 6PA2, 6PB1, 6PB2, 6PC, 6PD1, 6PH1, 
or 6PH2. 6HH1 and 6HA1 composite packaging with plastic inner 
receptacles meeting the compatibility requirements Sec. 173.24(e) (e.g., 
PFA Teflon) are authorized.
    (2) In 4H1 expanded plastic boxes with inner glass packagings of not 
over 2.5 L (0.66 gallon) each.
    (3) In combination packagings with 1A2, 1B2, 1D, 1G, 1H2, 3H2, 4C1, 
4C2, 4D, 4F or 4G outer packagings and plastic inner packagings not over 
2.5 L (0.66 gallon) capacity further individually overpacked in tightly 
closed metal packagings.
    (g) Nitric acid of more than 70 percent concentration, when offered 
for transportation or transported by cargo aircraft only, must be 
packaged in combination packagings with 1A2, 1B2, 1D, 1G, 1H2, 3H2, 4C1, 
4C2, 4D, 4F or 4G outer packagings with glass or earthenware inner 
packagings of not over 1 L (0.3 gallon) or glass ampoules of not over 
0.5 L (0.1 gallon).
    (h) Nitric acid of less than 70 percent concentration, when offered 
for transportation in cargo aircraft only must be packaged in 
combination packagings with 1A2, 1B2, 1D, 1G, 1H2, 3H2, 4C1, 4C2, 4D, 4F 
or 4G outer packagings with inner packagings of--
    (1) Glass or earthenware not over 2.5 L (0.66 gallon) capacity;
    (2) Plastic not over 2.5 L (0.66 gallon) capacity further 
individually overpacked in tightly closed metal packagings; or
    (3) Glass ampoule not over 0.5 L (0.1 gallon) capacity.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67509, Dec. 29, 1994; Amdt. 173-255, 
61 FR 50626, Sept. 26, 1996]



Sec. 173.159  Batteries, wet.

    (a) Electric storage batteries, containing electrolyte acid or 
alkaline corrosive battery fluid, must be completely protected so that 
short circuits will be prevented; they may not be packed with other 
materials except as provided in Secs. 173.220 and 173.222 of this part 
and paragraph (h) of this section.
    (b) The following specification packagings are authorized for 
batteries packed without other materials:
    (1) 4C1, 4C2, 4D, or 4F wooden boxes.
    (2) 4G fiberboard boxes.

[[Page 468]]

    (3) 1D plywood drums.
    (4) 1G fiber drums.
    (5) 1H2 and 3H2 plastic drums and jerricans.
    (6) 4H2 plastic boxes.
    (c) The following non-specification packagings are authorized for 
batteries packed without other materials:
    (1) Electric storage batteries protected against short circuits and 
firmly secured to skids or pallets capable of withstanding the shocks 
normally incident to transportation, are authorized for transportation 
by rail, highway, or water. The height of the completed unit must not 
exceed 1\1/2\ times the width of the skid or pallet. The unit must be 
capable of withstanding, without damage, a superimposed weight equal to 
two times the weight of the unit or, if the weight of the unit exceeds 
907 kg (2000 pounds), a superimposed weight of 1814 kg (4000 pounds). 
Battery terminals must not be relied upon to support any part of the 
superimposed weight.
    (2) Electric storage batteries weighing 225 kg (500 pounds) or more, 
consisting of carriers' equipment, may be shipped by rail when mounted 
on suitable skids and protected against short circuits. Such shipments 
may not be offered in interchange service.
    (3) One to three batteries not over 11.3 kg (25 pounds) each, packed 
in outer boxes. The maximum authorized gross weight is 34 kg (75 
pounds).
    (4) Not more than four batteries not over 7 kg (15 pounds) each, 
packed in strong outer fiberboard or wooden boxes. Batteries must be 
securely cushioned and packed to prevent short circuits. The maximum 
authorized gross weight is 30 kg (65 pounds).
    (5) Not more than five batteries not over 4.5 kg (10 pounds) each, 
packed in strong outer fiberboard or wooden boxes. Batteries must be 
securely cushioned and packed to prevent short circuits. The maximum 
authorized gross weight is 30 kg (65 pounds).
    (6) Single batteries not exceeding 34 kg (75 pounds) each, packed in 
5-sided slip covers or in completely closed fiberboard boxes. Slip 
covers and boxes must be of solid or double-faced corrugated fiberboard 
of at least 91 kg (200 pounds) Mullen test strength. The slip cover or 
fiberboard box must fit snugly and provide inside top clearance of at 
least 1.3 cm (0.5 inch) above battery terminals and filler caps with 
reinforcement in place. Assembled for shipment, the bottom edges of the 
slipcover must come to within 2.5 cm (1 inch) of the bottom of the 
battery. The completed package (battery and box or slip cover) must be 
capable of withstanding a top-to-bottom compression test of at least 225 
kg (500 pounds) without damage to battery terminals, cell covers or 
filler caps.
    (7) Sin gle batteries exceeding 34 kg (75 pounds) each may be packed 
in completely closed fiberboard boxes. Boxes must be of double-wall 
corrugated fiberboard of at least 181 kg (400 pounds) test, or solid 
fiberboard testing at least 181 kg (400 pounds); a box may have hand 
holes in its ends provided that the handholes will not materially weaken 
the box. Sides and ends of the box must have cushioning between the 
battery and walls of the box; combined thickness of cushioning material 
and walls of the box must not be less than 1.3 cm (0.5 inch); and 
cushioning must be excelsior pads, corrugated fiberboard, or other 
suitable cushioning material. The bottom of the battery must be 
protected by a minimum of one excelsior or double-wall corrugated 
fiberboard pad. The top of the battery must be protected by a wood 
frame, corrugated trays or scored sheets of corrugated fiberboard having 
minimum test of 91 kg (200 pounds), or other equally effective 
cushioning material. Top protection must bear evenly on connectors and/
or edges of the battery cover to facilitate stacking of batteries. No 
more than one battery may be placed in one box. The maximum authorized 
gross weight is 91 kg (200 pounds).
    (d) A nonspillable wet electric storage battery is excepted from all 
other requirements of this subchapter under the following conditions:
    (1) The battery must be protected against short circuits and 
securely packaged;
    (2) For batteries manufactured after September 30, 1995, the battery 
and the outer packaging must be plainly and durably marked 
``NONSPILLABLE'' or ``NONSPILLABLE BATTERY''; and
    (3) The battery must be capable of withstanding the following two 
tests,

[[Page 469]]

without leakage of battery fluid from the battery:
    (i) Vibration test. The battery must be rigidly clamped to the 
platform of a vibration machine, and a simple harmonic motion having an 
amplitude of 0.8 mm (0.03 inches), with a 1.6 mm (0.063 inches) maximum 
total excursion must be applied. The frequency must be varied at the 
rate of 1 Hz/min between the limits of 10 Hz to 55 Hz. The entire range 
of frequencies and return must be traversed in 955 minutes 
for each mounting position (direction of vibrator) of the battery. The 
battery must be tested in three mutually perpendicular positions (to 
include testing with fill openings and vents, if any, in an inverted 
position) for equal time periods.
    (ii) Pressure differential test. Following the vibration test, the 
battery must be stored for six hours at 24  deg.C4  deg.C 
(75  deg.F7  deg.F) while subjected to a pressure 
differential of at least 88 kPa (13 psi). The battery must be tested in 
three mutually perpendicular positions (to include testing with fill 
openings and vents, if any, in an inverted position) for at least six 
hours in each position.
    (e) Electric storage batteries containing electrolyte or corrosive 
battery fluid are not subject to the requirements of this subchapter for 
transportation by highway or rail if all of the following requirements 
are met:
    (1) No other hazardous materials may be transported in the same 
vehicle;
    (2) The batteries must be loaded or braced so as to prevent damage 
and short circuits in transit;
    (3) Any other material loaded in the same vehicle must be blocked, 
braced, or otherwise secured to prevent contact with or damage to the 
batteries; and
    (4) The transport vehicle may not carry material shipped by any 
person other than the shipper of the batteries.
    (f) Electric storage batteries, containing electrolyte or corrosive 
battery fluid in a coil from which it is injected into the battery cells 
by a gas generator and initiator assembled with the battery, and which 
are nonspillable under the criteria of paragraph (d) of this section, 
are excepted from other requirements of this subchapter when examined by 
the Bureau of Explosives and approved by the Associate Administrator for 
Hazardous Materials Safety.
    (g) Electrolyte, acid, or alkaline corrosive battery fluid, packed 
with storage batteries wet or dry, must be packed in one of the 
following specification packagings:
    (1) In 4C1, 4C2, 4D, or 4F wooden boxes with inner receptacles of 
glass, not over 4.0 L (1 gallon) each with not over 8.0 L (2 gallons) 
total in each outside container. Inside containers must be well-
cushioned and separated from batteries by a strong solid wooden 
partition. The completed package must conform to Packing Group III 
requirements.
    (2) Electrolyte, acid, or alkaline corrosive battery fluid included 
with storage batteries and filling kits may be packed in strong plywood 
or wooden boxes when shipments are made by, for, or to the Departments 
of the Army, Navy, or Air Force of the United States. Packagings must 
conform to military specifications. The electrolyte, acid, or alkaline 
corrosive battery fluid must be packed in polyethylene bottles of not 
over 1.0 L (0.3 gallon) capacity each. Not more than 24 bottles, 
securely separated from storage batteries and kits, may be offered for 
transportation or transported in each package.
    (3) In 4G fiberboard boxes with not more than 12 inside packagings 
of polyethylene or other material resistant to the lading, each not over 
2.0 L (0.5 gallon) capacity each. Completed packages must conform to 
Packing Group III requirements. Inner packagings must be adequately 
separated from the storage battery. The maximum authorized gross weight 
is 29 kg (64 pounds). These packages are not authorized for 
transportation by aircraft.
    (h) Dry storage batteries or battery charger devices may be packaged 
in 4G fiberboard boxes with inner receptacles containing battery fluid. 
Completed packagings must conform to Packing Group III requirements. Not 
more than 12 inner receptacles may be packed in

[[Page 470]]

one outer box. The maximum authorized gross weight is 34 kg (75 pounds).
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992; Amdt. 173-235, 58 FR 50502, 
Sept. 27, 1993; Amdt. 173-234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-246, 
60 FR 49110, Sept. 21, 1995]



Sec. 173.160  Bombs, smoke, non-explosive (corrosive).

    Bombs, smoke, non-explosive' may be shipped provided they are 
without ignition elements, bursting charges, detonating fuses or other 
explosive components. They must be packaged in wooden (4C1, 4C2), 
plywood (4D) or reconstituted wood (4F) boxes, or plywood drums (1D), 
which meet Packing Group II requirements.



Sec. 173.161  Chemical kits.

    (a) Except as otherwise provided, chemical kits must be packed, 
marked, and labeled as prescribed by this subchapter for the specific 
corrosive materials contained therein.
    (b) Chemical kits containing limited quantities of corrosive liquids 
in inner receptacles of not over 177 ml (6 fluid ounces) capacity each 
are excepted from labeling (except when offered for transportation or 
transported by air) and the specification packaging requirements of this 
subchapter if all of the following requirements are met:
    (1) The kit may contain only corrosive liquids for which packaging 
exceptions are provided in the Sec. 172.101 Table.
    (2) This kit must be a strong wooden or metal outer packaging, or 
must be packed in a strong wooden or metal packaging.
    (3) The corrosive liquids must be cushioned with sufficient 
absorbent material to completely absorb the contents of the individual 
containers, and must be protected from damage by other materials in the 
kit.
    (4) The contents of the kit must be of a nature and packed so there 
will be no possibility of the mixture of contents causing dangerous 
evolution of heat or gas.

In addition, chemical kits meeting these requirements are not subject to 
subpart F of part 172 of this subchapter (Placarding), to part 174 
(Carriage by rail) of this subchapter except Sec. 174.24 (Shipping 
papers), and to part 177 (Carriage by highway) of this subchapter except 
Sec. 177.817 (Shipping papers).
    (c) Except as provided in paragraph (b) of this section, chemical 
kits must be packed in 4G fiberboard boxes with inner glass receptacles 
of not over 1 L (0.3 gallon) capacity each, securely cushioned and 
separated from other inside containers. The contents of the kit must be 
of such a nature and so packed that there will be no possibility of the 
mixture of contents causing dangerous evolution of heat or gas.



Sec. 173.162  Gallium.

    Gallium metal must be packaged in packagings intended to contain 
liquids consisting of semi-rigid plastic inner packagings of not more 
than 2.5 kg (5.5 pounds) net capacity each, individually enclosed in a 
sealed leak-tight bag of strong puncture-resistant material. The sealed 
bags must be packed in wooden (4C1, 4C2), plywood (4D), reconstituted 
wood (4F), fiberboard (4G) or plastic (4H1, 4H2) boxes or in fiber (1G) 
or steel (1A2) drums, which are lined with leak-tight, puncture-
resistant material. Bags and liner material must be chemically resistant 
to gallium. In order to maintain the gallium in a completely solid 
state, the above packaging may be overpacked in a strong, water-
resistant outer packaging which contains dry ice or other means of 
refrigeration. If a refrigerant is used, all of the above materials used 
in the packaging of gallium must be chemically and physically resistant 
to the refrigerant and must have impact resistance at the low 
temperatures of the refrigerant employed. If dry ice is used, the outer 
packaging must permit the release of carbon dioxide gas. Completed 
packaging must meet Packing Group I requirements for transportation by 
aircraft and Packing Group III requirements for transportation by 
vessel. Manufactured articles or apparatuses, each containing not more 
than 100 mg (0.0035 ounce) of gallium and packaged so that the quantity 
of gallium per package does not exceed 1 g (0.35 ounce) are not subject 
to the requirements of this subchapter.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended by Amdt. 173-261, 
62 FR 24733, May 6, 1997]

[[Page 471]]



Sec. 173.163  Hydrogen fluoride.

    Hydrogen fluoride (hydrofluoric acid, anhydrous) must be offered for 
transportation or transported in Specification 3, 3A, 3AA, 3B, 3BN, 3C, 
3E, 4, 4A, 25, or 38 cylinders; or Specification 4B, 4BA, 4BW or 4C 
cylinders, if they are not brazed. Filling density must not exceed 85 
percent of the water weight capacity of the cylinder. Cylinders used 
exclusively in this service may, in lieu of the periodic hydrostatic 
retest required by Sec. 173.34(e), be given a complete external visual 
inspection as described in CGA Pamphlet C-6, at the time such periodic 
retest becomes due. Such inspections shall be made on cylinders cleaned 
to bare metal. The results shall be recorded on a data sheet, completed 
copies of which shall be kept as prescribed in Sec. 173.34(e)(8). Items 
which must be checked and recorded on these data sheets are: Date of 
inspection (month and year); DOT specification number; cylinder 
identification (registered symbol and serial number, date of 
manufacture, and if needed for adequate identification, ownership 
symbol); tare weight; physical condition (record specifically any 
leakage, corrosion, gouges, dents or digs in shell or heads, broken or 
damaged footring or protective ring or fire damage); disposition of 
cylinders (returned to service, to cylinder manufacturer for repairs, or 
scrapped). A cylinder which passes the inspection prescribed must have 
the data recorded in the manner presently prescribed for the recording 
of the retest date except that an ``E'' is to follow the date (month and 
year) indicating requalification by the external inspection method. 
Cylinders removed from this service for any reason must be rendered 
unfit for any other regulated service.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended by Amdt. 173-236, 
58 FR 50236, Sept. 24, 1993; Amdt. 173-251, 61 FR 26763, May 28, 1996]



Sec. 173.164  Mercury (metallic and articles containing mercury).

    (a) For transportation by aircraft, mercury must be packaged in 
packagings which meet the requirements of part 178 of this subchapter at 
the Packing Group I performance level, as follows:
    (1) Earthenware or glass or suitable plastic inner packagings of not 
more than 3.5 kg (7.7 pounds) capacity each, packed in steel drums 
(1A2), steel jerricans (3A2), wooden (4C1, 4C2), plywood (4D), 
fiberboard (4G) or reconstituted wood (4F) or solid plastic (4H2) boxes, 
plywood drums (1D) or fiber drums (1G) with sufficient cushioning 
material to prevent breakage. Either the inner packagings or the outer 
packagings must have inner linings or bags of strong leakproof and 
puncture-resistant material impervious to mercury, completely 
surrounding the contents, which will prevent the escape of mercury from 
the package irrespective of its position.
    (2) Iron or steel ``quicksilver flasks'' of not more than 3.5 kg 
(7.7 pounds) capacity each packaged in steel drums (1A2), steel 
jerricans (3A2), wooden (4C1, 4C2), plywood (4D), fiberboard (4G), 
reconstituted wood (4F) or solid plastic (4H2) boxes, plywood drums (1D) 
or fiber drums (1G) with leakproof linings as in paragraph (a)(1) of 
this section.
    (3) Welded steel bottles with inner vaulted bottoms as single 
packagings. The closure must be a bolt with a conical thread, and the 
opening must not exceed 20 mm (0.79 inches). The maximum net mass must 
not exceed 35 kg (77 pounds).
    (b) Manufactured articles or apparatuses, each containing not more 
than 100 mg (0.0035 ounce) of mercury and packaged so that the quantity 
of mercury per package does not exceed 1 g (0.035 ounce) are not subject 
to the requirements of this subchapter.
    (c) Manufactured articles or apparatuses containing not more than 
100 mg (0.0035 ounce) mercury are excepted from the specification 
packaging requirements of this subchapter when packaged as follows:
    (1) Manufactured articles or apparatuses of which metallic mercury 
is a component part, such as manometers, pumps, thermometers, switches, 
etc. (for electron tubes, mercury vapor tubes and similar tubes, see 
paragraph (c)(3) of this section), must be in strong outer packagings, 
having sealed inner liners or bags of strong leakproof and puncture-
resistant material impervious to mercury, which will

[[Page 472]]

prevent the escape of mercury from the package irrespective of its 
position. Mercury switches and relays are excepted from these packaging 
requirements, if they are totally enclosed, leakproof and in sealed 
metal or plastic units.
    (2) Thermometers, switches and relays, each containing a total 
quantity of not more than 15 g (0.53 ounces) of mercury, are excepted 
from the requirements of this subchapter if installed as an integral 
part of a machine or apparatus and so fitted that shock of impact 
damage, leading to leakage of mercury, is unlikely to occur under 
conditions normally incident to transport.
    (3) Electron tubes, mercury vapor tubes and similar tubes must be 
packaged as follows:
    (i) Tubes which are packed in strong outer packagings with all seams 
and joints sealed with self-adhesive, pressure-sensitive tape which will 
prevent the escape of mercury from the package, are authorized up to a 
total net quantity of 450 g (15.9 ounces) of mercury per package;
    (ii) Tubes with more than 450 g (15.9 ounces) of mercury are 
authorized only when packed in strong outer packagings, having sealed 
inner liners or bags of strong leakproof and puncture-resistant material 
impervious to mercury which will prevent escape of mercury from the 
package irrespective of its position;
    (iii) Tubes which do not contain more than 5 g (0.2 ounce) of 
mercury each and which are packed in the manufacturer's original 
packagings, are authorized up to a total net quantity of 30 g (1.1 
ounces) of mercury per package;
    (iv) Tubes which are completely jacketed in sealed leakproof metal 
cases are authorized in the manufacturer's original packagings.
    (4) A person offering for transportation electron tubes, mercury 
vapor tubes, and similar tubes shall indicate the quantity of mercury 
therein on the shipping paper.
    (5) Mercurial barometers conforming to paragraph (c)(1) of this 
section, which are loaded and unloaded from an aircraft under the 
supervision of, and accompanied in flight by, a National Weather Service 
official or similar United States agency official, are excepted from any 
other requirements of this subchapter.
    (d) For transportation by other than aircraft, mercury must be 
packaged--
    (1) In any packaging which meets the requirements of part 178 of 
this subchapter at the Packing Group III performance level; or
    (2) In non-specification reusable metal packagings.
    (e) Except for a hazardous substance or a hazardous waste or for 
transportation by aircraft or vessel, packages containing less than 0.45 
kg (1.0 pound) net weight of mercury are not subject to the requirements 
of this subchapter.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67509, Dec. 29, 1994; Amdt. 173-246, 
60 FR 49110, Sept. 21, 1995]



Sec. 173.166  Air bag inflators, air bag modules and seat-belt pretensioners.

    (a) Definitions. An air bag inflator (consisting of a casing 
containing an igniter, a booster material and a gas generant) is a gas 
generator used to inflate an air bag in a supplemental restraint system 
in a motor vehicle. An air bag module is the air bag inflator plus an 
inflatable bag assembly. A seat-belt pre-tensioner contains similar 
hazardous materials and is used in the operation of a seat-belt 
restraining system in a motor vehicle.
    (b) Classification. An air bag inflator, air bag module, or seat-
belt pre-tensioner may be classed as Class 9 only if it meets the 
following requirements--
    (1) The manufacturer has submitted each design type air bag inflator 
or seat-belt pre-tensioner to a person approved by the Associate 
Administrator for Hazardous Materials Safety for examination and 
testing. The submission must contain a detailed description of the 
inflator or pre-tensioner (or, if more than a single inflator or pre-
tensioner is involved, the maximum parameters of each particular 
inflator or pre-tensioner design type for which approval is sought) and 
details on the complete package.
    (2) Samples of the inflator or pre-tensioner, packaged as for 
transport, have been subjected to test series 6(c)

[[Page 473]]

of the UN Recommendations on the Transport of Dangerous Goods, Manual of 
Tests and Criteria, second revised edition, 1995 with no explosion of 
the device, no fragmentation of device casings, and no projection hazard 
or thermal effect which would significantly hinder fire-fighting or 
other emergency response efforts in the immediate vicinity.
    (3) The manufacturer submits an application, including--
    (i) The test results and report recommending the shipping 
description and classification for each device or design type; or
    (ii) An approved classification issued by the competent authority of 
a foreign government, to the Associate Administrator for Hazardous 
Materials Safety, and is notified in writing by the Associate 
Administrator that the device has been classed as Class 9 and approved 
for transportation.
    (4) No approval applications are required for air bag modules 
containing an approved air bag inflator.
    (5) Air bag inflators or seat belt pre-tensioners previously 
reclassed from Class 1 to Division 4.1 under the terms of an exemption 
may be reclassed as Class 9 materials without further testing.
    (c) EX numbers. When offered for transportation, the shipping paper 
must contain the EX number or product code for each approved inflator or 
pre-tensioner in association with the basic description required by 
Sec. 172.202(a) of this subchapter. Product codes must be traceable to 
the specific EX number assigned to the inflator or pre-tensioner by the 
Associate Administrator for Hazardous Materials Safety. A module must be 
identified with the same EX number or product code of the approved 
inflator.
    (d) Exceptions. (1) An air bag module or seat-belt pretensioner that 
has been approved by the Associate Administrator for Hazardous Materials 
Safety and is installed in a motor vehicle or in completed vehicle 
components, such as steering columns or door panels, is not subject to 
the requirements of this subchapter.
    (2) An air bag module, containing an inflator that has previously 
been examined and approved for transportation as a Division 4.1 
material, is not required to be submitted for examination or approval.
    (e) Packagings. The following packagings are authorized:
    (1) 1A2, 1B2, 1G or 1H2 drums.
    (2) 3A2 or 3H2 jerricans.
    (3) 4C1, 4C2, 4D, 4F, 4G or 4H2 boxes.
    (4) Reusable high strength plastic or metal containers or dedicated 
handling devices are authorized for shipment of air bag inflators, air 
bag modules, and seat-belt pretensioners from a manufacturing facility 
to the assembly facility, subject to the following conditions:
    (i) The gross weight of the container or handling device may not 
exceed 1000 kg (2205 pounds). The container or handling device structure 
must provide adequate support to allow them to be stacked at least three 
high with no damage to the containers or devices.
    (ii) If not completely enclosed by design, the container or handling 
device must be covered with plastic, fiberboard, or metal. The covering 
must be secured to the container by banding or other comparable methods.
    (iii) Internal dunnage must be sufficient to prevent movement of the 
devices within the container.
    (f) Labeling. Notwithstanding the provisions of Sec. 172.402 of this 
subchapter, each package or handling device must display a CLASS 9 
label. Additional labeling is not required when the package contains no 
hazardous materials other than the devices.
[Amdt. 173-230, 57 FR 1878, Jan. 16, 1992, as amended by Amdt. 173-241, 
59 FR 67509, Dec. 29, 1994; Amdt. 173-261, 62 FR 24733, May 6, 1997; 62 
FR 51560, Oct. 1, 1997]



Sec. 173.170  Black powder for small arms.

    Black powder for small arms that has been classed in Division 1.1 
may be reclassed as a Division 4.1 material, for domestic transportation 
by motor vehicle, rail freight, and cargo vessel only, subject to the 
following conditions:
    (a) The powder must be examined and approved for Division 1.1 and 
Division 4.1 classification in accordance with Secs. 173.56 and 173.58;
    (b) The total quantity of black powder in one motor vehicle, rail 
car, or freight container may not exceed 45.4 kg (100 pounds) net mass, 
and no more

[[Page 474]]

than four freight containers may be on board one cargo vessel;
    (c) The black powder must be packed in inner metal or heavy wall 
conductive plastic receptacles not over 454 g (16 ounces) net capacity 
each, with no more than 25 cans in one outer UN 4G fiberboard box. The 
inner packagings must be arranged and protected so as to prevent 
simultaneous ignition of the contents. The complete package must be of 
the same type which has been examined as required in Sec. 173.56;
    (d) Each completed package must be marked ``BLACK POWDER FOR SMALL 
ARMS'' and ``NA 0027''; and
    (e) Each package must bear the FLAMMABLE SOLID label.
[Amdt. 173-255, 61 FR 50626, Sept. 26, 1996, as amended at Amdt. 173-
255, 62 FR 14338, Mar. 26, 1997]



Sec. 173.171  Smokeless powder for small arms.

    Smokeless powder for small arms which has been classed in Division 
1.3 may be reclassed in Division 4.1, for transportation by motor 
vehicle, rail car, vessel, or cargo-only aircraft, subject to the 
following conditions:
    (a) The powder must be examined and approved for a Division 1.3 and 
Division 4.1 classification in accordance with Secs. 173.56 and 173.58 
of this part.
    (b) The total quantity of smokeless powder may not exceed 45.4 kg 
(100 pounds) net mass in:
    (1) One rail car, motor vehicle, or cargo-only aircraft; or
    (2) One freight container on a vessel, not to exceed four freight 
containers per vessel.
    (c) Only combination packagings with inner packagings not exceeding 
3.6 kg (8 pounds) net mass are authorized. Inner packagings must be 
arranged and protected so as to prevent simultaneous ignition of the 
contents. The complete package must be of the same type which has been 
examined as required in Sec. 173.56 of this part.
    (d) Inside packages that have been examined and approved by the 
Associate Administrator for Hazardous Materials Safety may be packaged 
in UN 4G fiberboard boxes meeting the Packing Group I performance level, 
provided all inside containers are packed to prevent movement and the 
net weight of smokeless powder in any one box does not exceed 7.3 kg (16 
pounds).
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67509, Dec. 29, 1994; Amdt. 173-253, 
61 FR 27174, May 30, 1996]



Sec. 173.172  Aircraft hydraulic power unit fuel tank.

    Aircraft hydraulic power unit fuel tanks containing a mixture of 
anhydrous hydrazine and monomethyl hydrazine (M86 fuel) and designed for 
installation as complete units in aircraft are excepted from the 
specification packaging requirements of this subchapter when they 
conform to either of the following conditions:
    (a) The unit must consist of an aluminum pressure vessel made from 
tubing and having welded heads. Primary containment of the fuel within 
this vessel must consist of a welded aluminum bladder having a maximum 
internal volume of 46 L (12 gallons). The outer vessel must have a 
minimum design gauge pressure of 1.275 kPa (185 psi) and a minimum burst 
gauge pressure of 2,755 kPa (400 psi). Each vessel must be leak-checked 
during manufacture and before shipment and must be found leakproof. The 
complete inner unit must be securely packed in non-combustible 
cushioning material, such as vermiculite, in a strong outer tightly 
closed metal packaging which will adequately protect all fittings. 
Maximum quantity of fuel per unit and package is 42 L (11 gallons); or
    (b) The unit must consist of an aluminum pressure vessel. Primary 
containment of the fuel within this vessel must consist of a welded 
hermetically sealed fuel compartment with an elastomeric bladder having 
a maximum internal volume of 46 L (12 gallons). The pressure vessel must 
have a minimum design gauge pressure of 5,170 kPa (750 psi). Each vessel 
must be leak-checked during manufacture and before shipment and must be 
securely packed in non-combustible cushioning material, such as 
vermiculite, in a strong outer tightly closed metal packaging which will 
adequately protect all fittings. Maximum quantity of fuel per unit and 
package is 42 L (11 gallons).

[[Page 475]]



Sec. 173.173  Paint, paint-related material, adhesives, ink and resins.

    (a) When the Sec. 172.101 Table specifies that a hazardous material 
be packaged under this section, the following requirements apply. Except 
as otherwise provided in this part, the description ``Paint'' is the 
proper shipping name for paint, lacquer, enamel, stain, shellac, 
varnish, liquid aluminum, liquid bronze, liquid gold, liquid wood 
filler, and liquid lacquer base. The description ``Paint-related 
material'' is the proper shipping name for a paint thinning, drying, 
reducing or removing compound. However, if a more specific description 
is listed in the Sec. 172.101 Table of this subchapter, that description 
must be used.
    (b) Paint, paint-related material, adhesives, ink and resins must be 
packaged as follows:
    (1) As prescribed in Sec. 173.202 of this part if it is a Packing 
Group II material or Sec. 173.203 of this part if it is a Packing Group 
III material; or
    (2) In inner glass packagings of not over 1 L (0.3 gallon) capacity 
each or inner metal packagings of not over 5 L (1 gallon) each, packed 
in a strong outer packaging. Packages must conform to the packaging 
requirements of subpart B of this part but need not conform to the 
requirements of part 178 of this subchapter.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67509, Dec. 29, 1994]



Sec. 173.174  Refrigerating machines.

    A refrigerating machine assembled for shipment and containing 7 kg 
(15 pounds) or less of a flammable liquid for its operation in a strong, 
tight receptacle is excepted from labeling (except when offered for 
transportation or transported by air) and the specification packaging 
requirements of this subchapter. In addition. shipments are not subject 
to subpart F of part 172 of this subchapter (Placarding), to part 174 of 
this subchapter (Carriage by rail) except Sec. 174.24 (Shipping papers) 
and to part 177 (Carriage by highway) of this subchapter except 
Sec. 177.817 (Shipping papers).



Sec. 173.181  Pyrophoric materials (liquids).

    When the Sec. 172.101 Table specifies that a hazardous material be 
packaged under this section, only the following non-bulk packagings are 
authorized:
    (a) Specification steel or nickel cylinders prescribed for any 
compressed gas except acetylene having a minimum design pressure of 1206 
kPa (175 psi). Cylinders with valves must be:
    (1) Equipped with steel valve protection caps or collars, unless 
overpacked; or
    (2) Overpacked in a wooden box (4C1, 4C2, 4D or 4F); fiberboard box 
(4G), or plastic box (4H1 or 4H2). Cylinders must be secured to prevent 
movement in the box and, when offered for transportation or transported, 
must be so loaded that pressure relief devices remain in the vapor space 
of the cylinder. (See Secs. 173.34(d)(7), 174.430 and 177.838(h) of this 
subchapter.)
    (b) Wooden boxes (4C1, 4C2, 4D, or 4F) or fiberboard boxes (4G) 
enclosing not more than four strong, tight metal cans with inner 
receptacles of glass or metal, not over 1 L (0.3 gallon) capacity each, 
having positive screwcap closures adequately gasketed. Inner packagings 
must be cushioned on all sides with dry, absorbent, incombustible 
material in a quantity sufficient to absorb the entire contents. The 
strong, tight metal cans must be closed by positive means, not by 
friction.
    (c) Steel drums (1A2) or fiber drums (1G) not exceeding 220 L (58 
gallons) capacity each with strong tight inner metal cans not over 4.0 L 
(1 gallon) capacity each, closed by positive means, not friction.
    (1) Inner packagings must have no opening exceeding 25 mm (1 inch) 
diameter and must be surrounded with noncombustible cushioning material.
    (2) Net quantity of pyrophoric liquids may not exceed two-thirds of 
the rated capacity of the outer drum. For example, a 220 L (58 gallons) 
outer drum may contain no more than 147 L (39 gallons) of pyrophoric 
liquids.
    (3) Each layer of inner containers must be separated by a metal 
plate separator in addition to cushioning material.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66270, 
Dec. 20, 1991]

[[Page 476]]



Sec. 173.182  Barium azide--50 percent or more water wet.

    Barium azide--50 percent or more water wet, must be packed in wooden 
boxes (4C1, 4C2, 4D, or 4F) or fiber drums (1G) with inner glass 
packagings not over 0.5 kg (1.1 pounds) capacity each. Packagings must 
have rubber stoppers wire tied for securement. If transportation is to 
take place when and where freezing weather is possible, a suitable 
antifreeze solution must be used to prevent freezing. Each packaging 
must conform to the requirements of part 178 of this subchapter at the 
Packing Group I performance level.



Sec. 173.183  Nitrocellulose base film.

    Films, nitrocellulose base, must be packaged in packagings 
conforming to the requirements of part 178 of this subchapter at the 
Packing Group III performance level, as follows:
    (a) In steel drums (1A2), aluminum drums (1B2), steel jerricans 
(3A2), wooden (4C1, 4C2), plywood (4D) or reconstituted wood (4F) boxes 
or plywood drums (1D) with each reel in a tightly closed metal can, 
polypropylene canister, or strong cardboard or fiberboard inner 
packaging with cover held in place by adhesive tape or paper; or
    (b) In fiberboard (4G) boxes or fiber drums (1G) with a single 
tightly closed metal can, polypropylene canister, or strong cardboard or 
fiberboard inner packaging with cover held in place by adhesive tape or 
paper; authorized only for not over 600 m (1969 feet) of film.
[Amdt. 173-224, 55 FR 52643 Dec. 21, 1990, as amended by Amdt. 173-255, 
61 FR 50627, Sept. 26, 1996]



Sec. 173.184  Highway or rail fusee.

    (a) A fusee is a device designed to burn at a controlled rate and to 
produce visual effects for signaling purposes. The composition of the 
fusee must be such that the fusee will not ignite spontaneously or 
undergo marked decomposition when subjected to a temperature of 75 
deg.C (167  deg.F) for 48 consecutive hours.
    (b) Fusees (highway and railway) must be packaged in steel drums 
(1A2), steel jerricans (3A2), wooden (4C1, 4C2), plywood (4D) or 
reconstituted wood (4F) boxes or in fiberboard boxes (4G), plywood (1D) 
or fiber (1G) drums. If the fusees are equipped with spikes packagings 
must have reinforced ends to prevent penetration of spikes through the 
outer packagings; packages must be capable of passing drop test 
requirements (Sec. 178.603 of this subchapter), including at least one 
drop with spike in a downward position, and other requirements of part 
178 of this subchapter, at the Packing Group II performance level.



Sec. 173.185  Lithium batteries and cells.

    (a) Except as otherwise provided in this subpart, a lithium cell or 
battery is authorized for transportation only if it conforms to the 
provisions of this section.
    (b) Exceptions. Cells and batteries are not subject to the 
requirements of this subchapter if they meet the following requirements:
    (1) Each cell with a liquid cathode may contain no more than 0.5 g 
of lithium or lithium alloy, and each cell with a solid cathode may 
contain no more than 1.0 g lithium or lithium alloy;
    (2) Each battery with a liquid cathode may contain an aggregate 
quantity of no more than 1.0 g lithium or lithium alloy, and each 
battery with a solid cathode may contain an aggregate quantity of no 
more than 2.0 g of lithium or lithium alloy;
    (3) Each cell or battery containing a liquid cathode must be 
hermetically sealed;
    (4) Cells and batteries must be packed in such a way so as to 
prevent short circuits and must be packed in strong packagings, except 
when installed in equipment; and
    (5) If a liquid cathode battery contains more than 0.5 g of lithium 
or lithium alloy or a solid cathode battery contains more than 1.0 g 
lithium or lithium alloy, it may not contain a liquid or gas that is a 
hazardous material according to this subchapter unless the liquid or 
gas, if free, would be completely absorbed or neutralized by other 
materials in the battery.
    (c) Cells and batteries also are not subject to this subchapter if 
they meet the following requirements:
    (1) Each cell contains not more than 5 g of lithium or lithium 
alloy;

[[Page 477]]

    (2) Each battery contains not more than 25 g of lithium or lithium 
alloy;
    (3) Each cell or battery is of the type proven to be non-dangerous 
by testing in accordance with tests in the UN Manual of Tests and 
Criteria, such testing must be carried out on each type prior to the 
initial transport of that type; and
    (4) Cells and batteries are designed or packed in such a way as to 
prevent short circuits under conditions normally encountered in 
transportation.
    (d) Cells and batteries and equipment containing cells and batteries 
which were first transported prior to January 1, 1995, and were assigned 
to Class 9 on the basis of the requirements of this subchapter in effect 
on October 1, 1993, may continue to be transported in accordance with 
the applicable requirements in effect on October 1, 1993.
    (e) Cells and batteries may be transported as items of Class 9 if 
they meet the requirements in paragraphs (e)(1) through (e)(9) of this 
section:
    (1) Cells must not contain more than 12 g of lithium or lithium 
alloy.
    (2) Batteries must not contain more than 500 g of lithium or lithium 
alloy.
    (3) Each cell and battery must be equipped with an effective means 
of preventing external short circuits.
    (4) Each cell and battery must incorporate a safety venting device 
or be designed in a manner that will preclude a violent rupture under 
conditions normally incident to transportation.
    (5) Batteries containing cells or series of cells connected in 
parallel must be equipped with diodes to prevent reverse current flow.
    (6) Cells and batteries must be packed in strong inner packagings 
containing not more than 500 g of lithium or lithium alloy per inner 
packaging.
    (7) Cells and batteries must be packed in inner packagings in such a 
manner as to effectively prevent short circuits and to prevent movement 
which could lead to short circuits.
    (8) Cells and batteries must be packaged in packagings conforming to 
the requirements of part 178 of this subchapter at the Packing Group II 
performance level: Inner packagings must be packed within metal boxes 
(4A or 4B), wooden boxes (4C1, 4C2, 4D,or 4F), fiberboard boxes (4G), 
solid plastic boxes (4H2), fiber drums (1G), metal drums (1A2 or 1B2), 
plywood drums (1D), plastic jerricans (3H2), or metal jerricans (3A2 or 
3B2).
    (9) Each cell or battery must be of the type proven to meet the 
criteria of Class 9 by testing in accordance with tests in the UN Manual 
of Tests and Criteria.
    (10) Except as provided in paragraph (h) of this section, cells or 
batteries may not be offered for transportation or transported if any 
cell has been discharged to the extent that the open circuit voltage is 
less than two volts or is less than \2/3\ of the voltage of the fully 
charged cell, whichever is less.
    (f) Equipment containing or packed with cells and batteries meeting 
the requirements of paragraph (b) or (c) of this section is excepted 
from all other requirements of this subchapter.
    (g) Equipment containing or packed with cells and batteries may be 
transported as items of Class 9 if the batteries and cells meet all the 
requirements of paragraph (e) of this section and are packaged as 
follows:
    (1) Equipment containing cells and batteries must be packed in a 
strong outer packaging that is waterproof or is made waterproof through 
the use of a liner unless the equipment is made waterproof by nature of 
its construction. The equipment must be secured within the outer 
packaging and be packed as to effectively prevent movement, short 
circuits, and accidental operation during transport; and
    (2) Cells and batteries packed with equipment must be packed in 
inner packagings conforming to paragraph (e)(8) of this section in such 
a manner as to effectively prevent movement and short circuits. The 
quantity of lithium contained in any piece of equipment must not exceed 
12 g per cell and 500 g per battery. Not more than 5 kg of cells and 
batteries may be packed with each item of equipment.
    (h) Cells and batteries, for disposal, may be offered for 
transportation or transported to a permitted storage facility and 
disposal site by motor vehicle when they meet the following 
requirements:
    (1) Cells, when new, may not contain more than 12 g and batteries 
may not

[[Page 478]]

contain more than 500 g of lithium or lithium alloy;
    (2) Be equipped with an effective means of preventing external short 
circuits; and
    (3) Be packed in a strong outer packaging conforming to the 
requirements of Secs. 173.24 and 173.24a. The packaging need not conform 
to performance requirements of part 178 of this subchapter.
    (i) Cells and batteries and equipment containing or packed with 
cells and batteries which do not comply with the provisions of this 
section may be transported only if they are approved by the Associate 
Administrator for Hazardous Materials Safety.
    (j) For testing purposes, when not contained in equipment, cells 
containing not more than 12 g of lithium or lithium alloy and batteries 
containing not more than 500 g of lithium or lithium alloy may be 
offered for transportation or transported by highway only as items of 
Class 9. Packaging must conform with paragraph (e)(8) of this section 
with not more than 100 cells per package.
[Amdt. 173-261, 62 FR 24733, May 6, 1997]



Sec. 173.186  Matches.

    (a) Matches must be of a type which will not ignite spontaneously or 
undergo marked decomposition when subjected for 8 consecutive hours to a 
temperature of 93  deg.C (200  deg.F).
    (b) Definitions. (1) Fusee matches are matches the heads of which 
are prepared with a friction-sensitive igniter composition and a 
pyrotechnic composition which burns with little or no flame, but with 
intense heat.
    (2) Safety matches are matches combined with or attached to the box, 
book or card that can be ignited by friction only on a prepared surface.
    (3) Strike anywhere matches are matches that can be ignited by 
friction on a solid surface.
    (4) Wax ``Vesta'' matches are matches that can be ignited by 
friction either on a prepared surface or on a solid surface.
    (c) Safety matches and wax ``Vesta'' matches must be tightly packed 
in securely closed inner packagings to prevent accidental ignition under 
conditions normally incident to transportation, and further packed in 
outer fiberboard, wooden, or other equivalent-type packagings. These 
matches in outer packagings not exceeding 23 kg (50 pounds) gross weight 
are not subject to any other requirement (except marking) of this 
subchapter. These matches may be packed in the same outer packaging with 
materials not subject to this subchapter.
    (d) Strike-anywhere matches may not be packed in the same outer 
packaging with any material other than safety matches or wax ``Vesta'' 
matches, which must be packed in separate inner packagings.
    (e) Packagings. Strike-anywhere matches must be tightly packed in 
securely closed chipboard, fiberboard, wooden, or metal inner packagings 
to prevent accidental ignition under conditions normally incident to 
transportation. Each inner packaging may contain no more than 700 
strike-anywhere matches and must be packed in outer steel drums (1A2), 
aluminum drums (1B2), steel jerricans (3A2), wooden (4C1, 4C2), plywood 
(4D), reconstituted wood (4F) or fiberboard (4G) boxes, plywood (1D) or 
fiber (1G) drums. Gross weight of fiberboard boxes (4G) must not exceed 
27 kg (60 pounds). Gross weight of other outer packagings must not 
exceed 45 kg (100 pounds).



Sec. 173.187  Pyrophoric solids, metals or alloys, n.o.s.

    Packagings for pyrophoric solids, metals, or alloys, n.o.s. must 
conform to the requirements of part 178 of this subchapter at the 
packing group performance level specified in the Sec. 172.101 Table. 
These materials must be packaged as follows:
    (a) In wooden boxes (4C1, 4C2, 4D, or 4F) with inner metal 
receptacles which have a positive (not friction) means of closure and 
contain not more than 15 kg (33 pounds) each.
    (b) In steel drums (1A1 or 1A2) with a gross mass not exceeding 150 
kg (331 pounds) per drum.
    (c) In fiberboard boxes (4G) with inner metal receptacles which have 
a positive (not friction) means of closure and contain not more than 7.5 
kg (17 pounds) each.

[[Page 479]]

    (d) In fiber drums (1G) with inner metal receptacles which have a 
positive (not friction) means of closure and contain not more than 15 kg 
(33 pounds) each.
    (e) In plywood drums (1D) with inner metal receptacles which have a 
positive (not friction) means of closure and contain not more than 15 kg 
(33 pounds) each.



Sec. 173.188  White or yellow phosphorus.

    Phosphorus, white or yellow, when offered for transportation or 
transported by rail, highway, or water, must be packaged in water or dry 
in packagings conforming to the requirements of part 178 of this 
subchapter at the Packing Group I performance level, as follows:
    (a) When placed in water, it must be packaged in specification 
packagings as follows:
    (1) Wooden boxes (4C1, 4C2, 4D, or 4F) with:
    (i) Inner hermetically sealed (soldered) metal cans, enclosed in 
other hermetically sealed (soldered) metal cans, or
    (ii) Inner water-tight metal cans containing not over 0.5 kg (1 
pound) of phosphorus with screw-top closures; or
    (2) Steel drums (1A1) not over 250 L (66 gallons) capacity each or 
steel drums (1A2) not over 115 L (30 gallons) capacity each.
    (b) When dry, it must be cast solid and shipped in packagings as 
follows:
    (1) Steel drums (1A2) not over 115 L (30 gallons) capacity each, or
    (2) In projectiles or bombs when shipped by, for, or to the 
Departments of the Army, Navy, or Air Force of the United States 
Government, without bursting elements.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66271, 
Dec. 20, 1991]



Sec. 173.189  Batteries containing sodium or cells containing sodium.

    (a) Batteries and cells may not contain any hazardous material other 
than sodium, sulfur or polysulfides. Cells not forming a component of a 
completed battery may not be offered for transportation at a temperature 
at which any liquid sodium is present in the cell. Batteries may only be 
offered for transportation, or transported, at a temperature at which 
any liquid sodium present in the battery conforms to the conditions 
prescribed in paragraph (d) of this section.
    (b) Cells must consist of hermetically sealed metal casings which 
fully enclose the hazardous materials and which are so constructed and 
closed as to prevent the release of the hazardous materials under normal 
conditions of transport. Cells must be placed in suitable outer 
packagings with sufficient cushioning material to prevent contact 
between cells and between cells and the internal surfaces of the outer 
packaging, and to ensure that no dangerous movement of the cells within 
the outer packaging occurs in transport. Cells must be packaged in 1A2, 
1B2, 1D, 1G, 1H2, 4C1, 4C2, 4D, 4F, 4G or 4H2 outer packagings which 
meet the requirements of part 178 of this subchapter at the Packing 
Group II performance level.
    (c) Batteries must consist of cells secured within, and fully 
enclosed by a metal casing so constructed and closed as to prevent the 
release of the hazardous materials under normal conditions of transport. 
Batteries may be offered for transportation, and transported, unpacked 
or in protective packagings that are not subject to the requirements of 
part 178 of this subchapter.
    (d) Batteries containing any liquid sodium may not be offered for 
transportation, or transported, by aircraft. Batteries containing liquid 
sodium may be transported by motor vehicle, rail car or vessel under the 
following conditions:
    (1) Batteries must be equipped with an effective means of preventing 
external short circuits, such as by providing complete electrical 
insulation of battery terminals or other external electrical connectors. 
Battery terminals or other electrical connectors penetrating the heat 
insulation fitted in battery casings must be provided with thermal 
insulation sufficient to prevent the temperature of the exposed surfaces 
of such devices from exceeding 55 deg.C (130 deg.F).
    (2) No battery may be offered for transportation if the temperature 
at any point on the external surface of the battery exceeds 55 deg.C 
(130 deg.F).

[[Page 480]]

    (3) If any external source of heating is used during transportation 
to maintain sodium in batteries in a molten state, means must be 
provided to ensure that the internal temperature of the battery does not 
reach or exceed 400 deg.C (752 deg.F).
    (4) When loaded in a transport vehicle or freight container:
    (i) Batteries must be secured so as to prevent significant movement 
within the transport vehicle or freight container under conditions 
normally incident to transportation;
    (ii) Adequate ventilation and/or separation between batteries must 
be provided to ensure that the temperature at any point on the external 
surface of the battery casing will not exceed 240 deg.C (464 deg.F) 
during transportation; and
    (iii) No other hazardous materials, with the exception of cells 
containing sodium, may be loaded in the same transport vehicle or 
freight container. Batteries must be separated from all other freight by 
a distance of not less than 0.5 meters (1.6 feet).
    (e) Batteries containing sodium or cells containing sodium, when 
installed as part of a motor vehicle, are not subject to the 
requirements of this subchapter.
[Amdt. 173-241, 59 FR 67511, Dec. 29, 1994, as amended by Amdt. 173-256, 
61 FR 51338, Oct. 1, 1996]



Sec. 173.192  Packaging for certain Packing Group I poisonous materials.

    When Sec. 172.101 of this subchapter specifies that a poisonous 
material be packaged under this section, only specification cylinders 
are authorized, as follows:
    (a) Specification 3A1800, 3AA1800, 3AL1800, 3D, 3E1800, or 33 
cylinders, under the following conditions:
    (1) Specification 3A, 3AA and 3AL cylinders may not exceed 57 kg 
(125 pounds) water capacity (nominal).
    (2) Specification 3D and 33 cylinders may not exceed 57 kg (125 
pounds) water capacity (nominal).
    (3) Specification 3AL cylinders containing arsine or phosphine may 
only be offered for transportation or transported by highway and rail.
    (b) Packagings must conform to the requirements of Sec. 173.40 of 
this part.
    (c) For cylinders used for phosgene,
    (1) The filling density may not exceed 125 percent;
    (2) A cylinder may not contain more than 68 kg (150 pounds) of 
phosgene; and
    (3) Each filled cylinder must be tested for leakage before it is 
offered for transportation or transported and must show absolutely no 
leakage; this test must consist of immersing the cylinder and valve, 
without the protection cap attached, in a bath of water at a temperature 
of approximately 66  deg.C (150  deg.F) for at least 30 minutes, during 
which time frequent examinations must be made to note any escape of gas. 
The valve of the cylinder must not be loosened after this test and 
before the cylinder is offered for transportation or transported.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66271, 
Dec. 20, 1991]



Sec. 173.193  Bromoacetone, methyl bromide, chloropicrin and methyl bromide or methyl chloride mixtures, etc.

    (a) Bromoacetone must be packaged as follows in wooden boxes (4C1, 
4C2, 4D or 4F) with inner glass receptacles or tubes in hermetically 
sealed metal receptacles in corrugated fiberboard cartons. Bottles may 
not contain over 500 g (17.6 ounces) of liquid each and must be 
cushioned in cans with at least 12.7 mm (0.5 inch) of absorbent 
material. Total amount of liquid in the outer box must not exceed 11 kg 
(24 pounds). Packagings must conform to the requirements of part 178 of 
this subchapter at the Packing Group I performance level.
    (b) Bromoacetone, methyl bromide, chloropicrin and methyl bromide 
mixtures, chloropicrin and methyl chloride mixtures, and chloropicrin 
mixtures charged with non-flammable, non-liquefied compressed gas must 
be packed in Specification 3A, 3AA, 3B, 3C, 3E, 4A, 4B, 4BA, 4BW, or 4C 
cylinders having not over 113 kg (250 pounds) water capacity (nominal). 
This capacity does not apply to shipments of methyl bromide.
    (c) Methyl bromide mixtures containing up to 2% chloropicrin must be 
packaged in 4G fiberboard boxes with inside metal cans containing not 
over one pound each, or inside metal cans

[[Page 481]]

with a minimum wall thickness of 0.007 inch containing not over 1\3/4\ 
pounds each. The one-pound can must be capable of withstanding an 
internal pressure of 130 psig without leakage or permanent distortion. 
Vapor pressure of the contents must not exceed 130 psig at 55  deg.C 
(130  deg.F). The 1\3/4\-pound can must be capable of withstanding an 
internal pressure of 140 psig without leakage or permanent distortion. 
Vapor pressure of the contents must not exceed 140 psig at 55  deg.C 
(130  deg.F). Cans must not be liquid full at 130  deg.F. Cans must be 
constructed of tinplate or lined with suitable material and must have 
concave or pressure ends.
    (d) Cylinders, except those containing methyl bromide, must conform 
to Sec. 173.40 of this part.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66271, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992]



Sec. 173.194  Gas identification sets.

    Gas identification sets containing poisonous material must be 
packaged in packagings conforming to the requirements of part 178 of 
this subchapter at the Packing Group I performance level, as follows:
    (a) In glass inner receptacles, hermetically sealed, of not over 40 
ml (1.4 fluid ounces) each. Each glass inner receptacle must in turn be 
placed in a sealed fiberboard receptacle, cushioned with absorbent 
material. Not more than 12 fiberboard receptacles must in turn be placed 
in a 4G fiberboard box. No more than four boxes, well-cushioned, may in 
turn be placed in a steel cylinder. The cylinder must have a wall 
thickness of at least 3.7 mm (0.146 inch) and must have a hermetically 
sealed steel closure.
    (b) When the poisonous material is absorbed in a medium such as 
activated charcoal or silical gel, gas identification sets may be 
shipped as follows:
    (1) If the poisonous material does not exceed 5 ml (0.2 fluid ounce) 
if a liquid or 5 g (0.2 ounce) if a solid, it may be packed in glass 
inner receptacles of not over 120 ml (4.1 fluid ounces) each. Each glass 
receptacle, cushioned with absorbent material must be packed in a 
hermetically sealed metal can of not less than 0.30-mm (0.012 inch) wall 
thickness. Metal cans, surrounded on all sides by at least 25 mm (1 
inch) of dry sawdust, must be packed in 4C1, 4C2, 4D or 4F wooden boxes. 
Not more than 100 ml (3.4 fluid ounces) or 100 g (3.5 ounces) of 
poisonous materials may be packed in one outer wooden box.
    (2) If the poisonous material does not exceed 5 ml (0.2 fluid ounce) 
if a liquid or 20 g (0.7 ounce) if a solid, it may be packed in glass 
inner receptacles with screw-top closures of not less than 60 ml (2 
ounces), hermetically sealed. Twelve bottles containing poisonous 
material, not to exceed 100 ml (3.4 ounces) or 100 g (3.5 ounces), or 
both, may be placed in a plastic carrying case, each glass receptacle 
surrounded by absorbent cushioning and each separated from the other by 
sponge rubber partitions. The plastic carrying case must be placed in a 
tightly fitting fiberboard box which in turn must be placed in a tightly 
fitting 4C1, 4C2, 4D or 4F wooden box.



Sec. 173.195  Hydrogen cyanide, anhydrous, stabilized (hydrocyanic acid, aqueous solution).

    (a) Hydrogen cyanide, anhydrous, stabilized, must be packed in 
specification cylinders as follows:
    (1) As prescribed in Sec. 173.192, or
    (2) Specification 3A480, 3A480X, 3AA480, or 3A1800 metal cylinders 
of not over 126 kg (278 pounds) water capacity (nominal). Shipments in 
3AL cylinders are authorized only when transported by highway and rail.
    (b) Cylinders may not be charged with more than 0.27 kg (0.6 pound) 
of liquid per 0.45 kg (1 pound) water capacity of cylinder. Each filled 
cylinder must be tested for leakage before being offered for 
transportation or transported and must show absolutely no leakage; this 
test must consist of passing a piece of Guignard's sodium picrate paper 
over the closure of the cylinder, without the protection cap attached, 
to detect any escape of hydrogen cyanide from the cylinder. Other 
equally efficient test methods may be used in place of sodium picrate 
paper.
    (c) Packagings for hydrogen cyanide must conform to Sec. 173.40.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66271, 
Dec. 20, 1991]

[[Page 482]]



Sec. 173.196  Infectious substances (etiologic agents).

    (a) Authorized packagings and components are as follows:
    (1) Inner packagings comprising:
    (i) A watertight primary receptacle;
    (ii) A watertight secondary packaging; and
    (iii) An absorbent material must be placed between the primary 
receptacle and the secondary packaging. If multiple-primary receptacles 
are placed in a single secondary packaging they must be wrapped 
individually to ensure that contact between them is prevented. The 
absorbent material, such as cotton wool, must be sufficient to absorb 
the entire contents of all primary receptacles.
    (2) An outer packaging must be of adequate strength for its 
capacity, mass and intended use.
    (b) Each package for infectious substances must be capable of 
passing the tests specified in Sec. 178.609 of this subchapter.
    (c) Packages consigned as freight must be at least 100 mm (3.9 
inches) in the smallest overall external dimensions.
    (d) For all packages containing infectious substances, an itemized 
list of contents must be enclosed between the secondary packaging and 
the outer packaging.
    (e) Although exceptional cases, such as whole organs, may require 
special packaging, the great majority of infectious substances can and 
must be packaged according to the following guidelines.
    (1) Lypholized substances. Primary receptacles include flame-sealed 
glass ampoules or rubber-stopped glass vials fitted with metal seals.
    (2) Liquid or solid substances--(i) Substances shipped at ambient 
temperatures or higher. Primary receptacles include those of glass, 
metal or plastic. Positive means of ensuring a leakproof seal, such as 
heat seal, skirted stopper or metal crimp seal must be provided. If 
screw caps are used, they must be reinforced with adhesive tape.
    (ii) Substances shipped refrigerated or frozen (ice, pre-frozen 
packs, dry ice). Ice or dry ice must be placed outside the secondary 
packagings. Interior supports must be provided to secure the secondary 
packagings in the original position after the ice or dry ice has 
dissipated. If ice is used, the packaging must be leakproof. If dry ice 
is used, the outer packaging must permit the release of carbon dioxide 
gas.
    (iii) Substances shipped in liquid nitrogen. Plastic primary 
receptacles capable of withstanding very low temperatures must be used. 
Secondary packaging must also withstand very low temperatures and in 
most cases will need to be fitted over individual primary receptacles. 
Requirements for shipment of liquid nitrogen must also be observed.
    (f) Whatever the intended temperature of shipment, the primary 
receptacle or secondary packaging used for infectious substances must be 
capable of withstanding, without leakage, an internal pressure which 
produces a pressure differential of not less than 95 kPa (14 psi) and 
temperatures in the range of -40  deg.C to +55  deg.C (-40  deg.F to 
+131  deg.F).
    (g) The requirements of this section supplement the requirements of 
the Department of Health and Human Services contained in 42 CFR part 72.
    (h) Exceptions. The following substances are not subject to any 
requirements of this subchapter if the items as packaged do not contain 
any material otherwise subject to the requirements of this subchapter.
    (1) Diagnostic specimens.
    (2) Biological products.
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended by Amdt. 173-241, 
59 FR 67511, Dec. 29, 1994]



Sec. 173.197  Regulated medical waste.

    (a) Regulated medical waste must be packaged in packagings 
conforming to the requirements of part 178 of this subchapter at the 
Packing Group II performance level. The packagings must be:
    (1) Rigid;
    (2) Leak resistant;
    (3) Impervious to moisture;
    (4) Of sufficient strength to prevent tearing or bursting under 
normal conditions of use and handling;
    (5) Sealed to prevent leakage during transport;
    (6) Puncture resistant for sharps and sharps with residual fluids; 
and

[[Page 483]]

    (7) Break-resistant and tightly lidded or stoppered for fluids in 
quantities greater than 20 cubic centimeters.
    (b) Until October 1, 1994, packages do not have to be marked or 
tested but must be capable of meeting the requirements in subpart M of 
part 178 of this subchapter.
[Amdt. 173-224, 56 FR 66271, Dec. 20, 1991]



Sec. 173.198  Nickel carbonyl.

    (a) Nickel carbonyl must be packed in specification steel or nickel 
cylinders as prescribed for any compressed gas except acetylene. A 
cylinder used exclusively for nickel carbonyl may be given a complete 
external visual inspection in lieu of the interior hydrostatic pressure 
test required by Sec. 173.34(e). Visual inspection must be in accordance 
with CGA Pamphlet C-6.
    (b) Packagings for nickel carbonyl must conform to Sec. 173.40.



Sec. 173.201  Non-bulk packagings for liquid hazardous materials in Packing Group I.

    (a) When Sec. 172.101 of this subchapter specifies that a liquid 
hazardous material be packaged under this section, only non-bulk 
packagings prescribed in this section may be used for its 
transportation. Each packaging must conform to the general packaging 
requirements of subpart B of part 173, to the requirements of part 178 
of this subchapter at the Packing Group I performance level, and to the 
requirements of the special provisions of Column 7 of the Sec. 172.101 
Table.
    (b) The following combination packagings are authorized:

    Outer packagings:
Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plywood drum: 1D
Fiber drum: 1G
Plastic drum: 1H1 or 1H2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box: 4A
Aluminum box: 4B
Natural wood box: 4C1 or 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Expanded plastic box: 4H1
Solid plastic box: 4H2
    Inner packagings:
Glass or earthenware receptacles
Plastic receptacles
Metal receptacles
Glass ampoules

    (c) Except for transportation by passenger aircraft, the following 
single packagings are authorized:

Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel, or aluminum: 1N1 or 1N2
Plastic drum: 1H1 or 1H2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Plastic receptacle in steel, aluminum, fiber or plastic drum: 6HA1, 
6HB1, 6HG1, 6HH1
Plastic receptacle in steel, aluminum, wooden, plywood or fiberboard 
box: 6HA2, 6HB2, 6HC, 6HD2 or 6HG2
Glass, porcelain or stoneware in steel, aluminum or fiber drum: 6PA1, 
6PB1 or 6PG1
Glass, porcelain or stoneware in steel, aluminum, wooden or fiberboard 
box: 6PA2, 6PB2, 6PC or 6PG2
Glass, porcelain or stoneware in solid or expanded plastic packaging: 
6PH1 or 6PH2
Cylinders, specification, as prescribed for any compressed gas, except 
for Specifications 8 and 3HT
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended by Amdt. 173-241, 
59 FR 67518, Dec. 29, 1994; Amdt. 173-261, 62 FR 24734, May 6, 1997]



Sec. 173.202  Non-bulk packagings for liquid hazardous materials in Packing Group II.

    (a) When Sec. 172.101 of this subchapter specifies that a liquid 
hazardous material be packaged under this section, only non-bulk 
packagings prescribed in this section may be used for its 
transportation. Each packaging must conform to the general packaging 
requirements of subpart B of part 173, to the requirements of part 178 
of this subchapter at the Packing Group I or II performance level 
(unless otherwise excepted), and to the particular requirements of the 
special provisions of Column 7 of the Sec. 172.101 Table.
    (b) The following combination packagings are authorized:

    Outer packagings:
Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plywood drum: 1D

[[Page 484]]

Fiber drum: 1G
Plastic drum: 1H1 or 1H2
Wooden barrel: 2C2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box: 4A
Aluminum box: 4B
Natural wood box: 4C1 or 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Expanded plastic box: 4H1
Solid plastic box: 4H2
    Inner packagings:
Glass or earthenware receptacles
Plastic receptacles
Metal receptacles
Glass ampoules

    (c) Except for transportation by passenger aircraft, the following 
single packagings are authorized:

Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plastic drum: 1H1 or 1H2
Fiber drum: 1G (with liner)
Wooden barrel: 2C1
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Plastic receptacle in steel, aluminum, fiber or plastic drum: 6HA1, 
6HB1, 6HG1 or 6HH1
Plastic receptacle in steel, aluminum, wooden, plywood or fiberboard 
box: 6HA2, 6HB2, 6HC, 6HD2 or 6HG2
Glass, porcelain or stoneware in steel, aluminum or fiber drum: 6PA1, 
6PB1 or 6PG1
Glass, porcelain or stoneware in steel, aluminum, wooden or fiberboard 
box: 6PA2, 6PB2, 6PC or 6PG2
Glass, porcelain or stoneware in solid or expanded plastic packaging: 
6PH1 or 6PH2
Plastic receptacle in plywood drum: 6HD1
Glass, porcelain or stoneware in plywood drum or wickerwork hamper: 6PDl 
or 6PD2
Cylinders, specification, as prescribed for any compressed gas, except 
for Specifications 8 and 3HT
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66271, 
Dec. 20, 1991; Amdt 173-241, 59 FR 67518, Dec. 29, 1994; Amdt. 173-261, 
62 FR 24734, May 6, 1997; 62 FR 51560, Oct. 1, 1997]



Sec. 173.203  Non-bulk packagings for liquid hazardous materials in Packing Group III.

    (a) When Sec. 172.101 of this subchapter specifies that a liquid 
hazardous material be packaged under this section, only non-bulk 
packagings prescribed in this section may be used for its 
transportation. Each packaging must conform to the general packaging 
requirements of subpart B of part 173, to the requirements of part 178 
of this subchapter at the Packing Group I, II or III performance level, 
and to the requirements of the special provisions of Column 7 of the 
Sec. 172.101 Table.
    (b) The following combination packagings are authorized:

    Outer packagings:
Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plywood drum: 1D
Fiber drum: 1G
Plastic drum: 1H1 or 1H2
Wooden barrel: 2C2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box: 4A
Aluminum box: 4B
Natural wood box: 4C1 or 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Expanded plastic box: 4H1
Solid plastic box: 4H2
    Inner packagings:
Glass or earthenware receptacles
Plastic receptacles
Metal receptacles
Glass ampoules

    (c) The following single packagings are authorized:

Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1
Plastic drum: 1H1 or 1H2
Fiber drum: 1G (with liner)
Wooden barrel: 2C1
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Plastic receptacle in steel, aluminum, fiber or plastic drum: 6HA1, 
6HB1, 6HG1 or 6HH1
Plastic receptacle in steel, aluminum, wooden, plywood or fiberboard 
box: 6HA2, 6HB2, 6HC, 6HD2 or 6HG2
Glass, porcelain or stoneware in steel, aluminum or fiber drum: 6PA1, 
6PB1, or 6PG1
Glass, porcelain or stoneware in steel, aluminum, wooden or fiberboard 
box: 6PA2, 6PB2, 6PC or 6PG2
Glass, porcelain or stoneware in solid or expanded plastic packaging: 
6PH1 or 6PH2
Plastic receptacle in plywood drum: 6HD1
Glass, porcelain or stoneware in plywood drum or wickerwork hamper: 6PD1 
or 6PD2

[[Page 485]]

Cylinders, as prescribed for any compressed gas, except for 
Specifications 8 and 3HT
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66271, 
Dec. 20, 1991; Amdt. 173-241, 59 FR 67518, Dec. 29, 1994; Amdt. 173-261, 
62 FR 24734, May 6, 1997]



Sec. 173.204  Non-bulk, non-specification packagings for certain hazardous materials.

    When Sec. 172.101 of this subchapter specifies that a liquid or 
solid hazardous material be packaged under this section, any appropriate 
non-bulk packaging which conforms to the general packaging requirements 
of subpart B of part 173 may be used for its transportation. Packagings 
need not conform to the requirements of part 178 of this subchapter.



Sec. 173.205  Specification cylinders for liquid hazardous materials.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, any specification cylinder, 
except those specified for acetylene, is authorized. Cylinders used for 
poisonous materials (Division 6.1 or 2.3) must conform to the 
requirements of Sec. 173.40.



Sec. 173.211  Non-bulk packagings for solid hazardous materials in Packing Group I.

    (a) When Sec. 172.101 of this subchapter specifies that a solid 
hazardous material be packaged under this section, only non-bulk 
packagings prescribed in this section may be used for its 
transportation. Each package must conform to the general packaging 
requirements of subpart B of part 173, to the requirements of part 178 
of this subchapter at the Packing Group I performance level, and to the 
requirements of the special provisions of Column 7 of the Sec. 172.101 
Table.
    (b) The following combination packagings are authorized:

    Outer packagings:
Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plywood drum: 1D
Fiber drum: 1G
Plastic drum: 1H1 or 1H2
Wooden barrel: 2C2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box: 4A
Aluminum box: 4B
Natural wood box: 4C1 or 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Solid plastic box: 4H2
    Inner packagings:
Glass or earthenware receptacles
Plastic receptacles
Metal receptacles
Glass ampoules

    (c) Except for transportation by passenger aircraft, the following 
single packagings are authorized:

Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plastic drum: 1H1 or 1H2
Fiber drum: 1G
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box with liner: 4A
Aluminum box with liner: 4B
Natural wood box, sift proof: 4C2
Plastic receptacle in steel, aluminum, plywood, fiber or plastic drum: 
6HA1, 6HB1, 6HD1, 6HG1 or 6HH1
Plastic receptacle in steel, aluminum, wooden, plywood or fiberboard 
box: 6HA2, 6HB2, 6HC, 6HD2 or 6HG2
Glass, porcelain or stoneware in steel, aluminum, plywood or fiber drum: 
6PA1, 6PB1, 6PD1 or 6PG1
Glass, porcelain or stoneware in steel, aluminum, wooden or fiberboard 
box: 6PA2, 6PB2, 6PC or 6PG2
Glass, porcelain or stoneware in expanded or solid plastic packaging: 
6PH1 or 6PH2
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66271, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992; Amdt. 173-241, 59 FR 67511, 
67518, Dec. 29, 1994; Amdt. 173-261, 62 FR 24734, May 6, 1997]



Sec. 173.212  Non-bulk packagings for solid hazardous materials in Packing Group II.

    (a) When Sec. 172.101 of this subchapter specifies that a solid 
hazardous material be packaged under this section, only non-bulk 
packagings prescribed in this section may be used for its 
transportation. Each package must conform to the general packaging 
requirements of subpart B of part 173, to the requirements of part 178 
of this subchapter at the Packing Group I or II performance level, and 
to the requirements of the

[[Page 486]]

special provisions of Column 7 of the Sec. 172.101 Table.
    (b) The following combination packagings are authorized:

    Outer packagings:
Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plywood drum: 1D
Fiber drum: 1G
Plastic drum: 1H1 or 1H2
Wooden barrel: 2C2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box: 4A
Aluminum box: 4B
Natural wood box: 4C1 or 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Solid plastic box: 4H2
    Inner packagings:
Glass or earthenware receptacles
Plastic receptacles
Metal receptacles
Glass ampoules

    (c) Except for transportation by passenger aircraft, the following 
single packagings are authorized:

Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Plywood drum: 1D
Plastic drum: 1H1 or 1H2
Fiber drum: 1G
Metal drum other than steel or aluminum: 1N1 or 1N2
Wooden barrel: 2C1 or 2C2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box: 4A
Steel box with liner: 4A
Aluminum box: 4B
Aluminum box with liner: 4B
Natural wood box: 4C1
Natural wood box, sift proof: 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Expanded plastic box: 4H1
Solid plastic box: 4H2
Bag, woven plastic: 5H1, 5H2 or 5H3
Bag, plastic film: 5H4
Bag, textile: 5L1, 5L2 or 5L3
Bag, paper, multiwall, water resistant: 5M2
Plastic receptacle in steel, aluminum, plywood fiber or plastic drum: 
6HA1, 6HB1, 6HD1, 6HG1 or 6HH1
Plastic receptacle in steel aluminum, wood, plywood or fiberboard box: 
6HA2, 6HB2, 6HC, 6HD2 or 6HG2
Glass, porcelain or stoneware in steel, aluminum, plywood or fiber drum: 
6PA1, 6PB1, 6PD1 or 6PG1
Glass, porcelain or stoneware in steel, aluminum, wooden or fiberboard 
box: 6PA2, 6PB2, 6PC or 6PG2
Glass, porcelain or stoneware in expanded or solid plastic packaging: 
6PH1 or 6PH2
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended by Amdt. 173-241, 
59 FR 67511, 67518, Dec. 29, 1994; Amdt. 173-261, 62 FR 24734, May 6, 
1997]



Sec. 173.213  Non-bulk packagings for solid hazardous materials in Packing Group III.

    (a) When Sec. 172.101 of this subchapter specifies that a solid 
hazardous material be packaged under this section, only non-bulk 
packagings prescribed in this section may be used for its 
transportation. Each package must conform to the general packaging 
requirements of subpart B of part 173, to the requirements of part 178 
of this subchapter at the Packing Group I, II or III performance level, 
and to the requirements of the special provisions of Column 7 of the 
Sec. 172.101 Table.
    (b) The following combination packagings are authorized:

    Outer packagings:
Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Metal drum other than steel or aluminum: 1N1 or 1N2
Plywood drum: 1D
Fiber drum: 1G
Plastic drum: 1H1 or 1H2
Wooden barrel: 2C2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box: 4A
Aluminum box: 4B
Natural wood box: 4C1 or 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Solid plastic box: 4H2
    Inner packagings:
Glass or earthenware receptacles
Plastic receptacles
Metal receptacles
Glass ampoules

    (c) The following single packagings are authorized:

Steel drum: 1A1 or 1A2
Aluminum drum: 1B1 or 1B2
Plywood drum: 1D
Fiber drum: 1G
Plastic drum: 1H1 or 1H2

[[Page 487]]

Metal drum other than steel or aluminum: 1N1 or 1N2
Wooden barrel: 2C1 or 2C2
Steel jerrican: 3A1 or 3A2
Plastic jerrican: 3H1 or 3H2
Aluminum jerrican: 3B1 or 3B2
Steel box with liner: 4A
Steel box: 4A
Aluminum box with liner: 4B
Natural wood box: 4C1
Natural wood box, sift proof: 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Expanded plastic box: 4H1
Solid plastic box: 4H2
Bag, woven plastic: 5H1, 5H2 or 5H3
Bag, plastic film: 5H4
Bag, textile: 5L1, 5L2 or 5L3
Bag, paper, multiwall, water resistant: 5M2
Plastic receptacle in steel, aluminum, plywood, fiber or plastic drum: 
6HA1, 6HB1, 6HD1, 6HG1 or 6HH1
Plastic receptacle in steel, aluminum, wooden, plywood or fiberboard 
box: 6HA2, 6HB2, 6HC, 6HD2 or 6HG2
Glass, porcelain or stoneware in steel, aluminum, plywood or fiber drum: 
6PA1, 6PB1, 6PD1 or 6PG1
Glass, porcelain or stoneware in steel, aluminum, wooden or fiberboard 
box: 6PA2, 6PB2, 6PC or 6PG2
Glass, porcelain or stoneware in expanded or solid plastic packaging: 
6PH1 or 6PH2
[Amdt. 173-224, 55 FR 52634, Dec. 21, 1990, as amended by Amdt. 173-241, 
59 FR 67511, 67518, Dec. 29, 1994; Amdt. 173-261, 62 FR 24734, May 6, 
1997]



Sec. 173.214  Packagings which require approval by the Associate Administrator for Hazardous Materials Safety.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, packagings and method of 
shipment must be approved by the Associate Administrator for Hazardous 
Materials Safety prior to the first shipment.



Sec. 173.216  Asbestos, blue, brown or white.

    (a) Asbestos, blue, brown or white, includes each of the following 
hydrated mineral silicates: chrysolite, crocidolite, amosite, 
anthophyllite asbestos, tremolite asbestos, actinolite asbestos, and 
every product containing any of these materials.
    (b) Asbestos which is immersed or fixed in a natural or artificial 
binder material (such as cement, plastic, asphalt, resins or mineral 
ore), and manufactured products containing asbestos are not subject to 
the requirements of this subchapter.
    (c) Packagings for asbestos must conform to the general packaging 
requirements of subpart B of this part but need not conform to the 
requirements of part 178 of this subchapter. Asbestos must be offered 
for transportation and transported in--
    (1) Rigid, leaktight packagings, such as metal, plastic or fiber 
drums, portable tanks, hopper-type rail cars, or hopper-type motor 
vehicles;
    (2) Bags or other non-rigid packagings in closed freight containers, 
motor vehicles, or rail cars that are loaded by and for the exclusive 
use of the consignor and unloaded by the consignee;
    (3) Bags or other non-rigid packagings which are dust and sift-
proof. When transported by other than private carrier by highway, such 
packagings containing asbestos must be palletized and unitized by 
methods such as shrink-wrapping in plastic film or wrapping in 
fiberboard secured by strapping. Pallets need not be used during 
transportation by vessel for loads with slings that are unitized by 
methods such as shrink,wrapping, if the slings adequately and evenly 
support the loads and the unitizing method prevents shifting of the bags 
or other non-rigid packagings during conditions normally incident to 
transportation; or
    (4) Bags or other non-rigid packagings which are dust and sift-proof 
in strong outside fiberboard or wooden boxes.



Sec. 173.217  Carbon dioxide, solid (dry ice).

    (a) Carbon dioxide, solid (dry ice), when offered for transportation 
or transported by aircraft or water, must be packed in packagings 
designed and constructed to permit the release of carbon dioxide gas to 
prevent a build-up of pressure that could rupture the packagings. 
Packagings must conform to the general packaging requirements of subpart 
B of this part but need not conform to the requirements of part 178 of 
this subchapter. For each shipment by air exceeding 2.3 kg (5 lbs) per 
package, advance arrangements must be

[[Page 488]]

made between the shipper and each carrier.
    (b) Railroad cars and motor vehicles containing solid carbon 
dioxide, when accepted for transportation on board ocean vessels, must 
be conspicuously marked on two sides ``WARNING CO2 SOLID (DRY 
ICE).''
    (c) Other packagings containing solid carbon dioxide, when offered 
or accepted for transportation on board ocean vessels, must be marked 
``CARBON DIOXIDE, SOLID--DO NOT STOW BELOW DECKS.''
    (d) Not more than 200 kg (441 pounds) of solid carbon dioxide may be 
transported in any one cargo compartment or bin on any aircraft except 
by specific and special written arrangement between the shipper and the 
aircraft operator.
    (e) Carbon dioxide, solid (dry ice) is excepted from the shipping 
paper and certification requirements of this subchapter if the 
requirements of paragraphs (a) and (d) of this section are complied with 
and the package is marked ``Carbon dioxide, solid'' or ``Dry ice'' and 
marked with an indication that the material being refrigerated is used 
for diagnostic or treatment purposes (e.g., frozen medical specimens).
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended by Amdt. 173-138, 
59 FR 49133, Sept. 26, 1994]



Sec. 173.218  Fish meal or fish scrap.

    (a) Except as provided in paragraph (b) of this section, fish meal 
or fish scrap, containing at least 6 percent but not more than 12 
percent water, is authorized for transportation by water only when 
packaged as follows:
    (1) Burlap (jute) bag;
    (2) Multi-wall paper bag;
    (3) Polyethylene-lined burlap or paper bag;
    (4) Cargo tank;
    (5) Portable tank;
    (6) Rail car; or
    (7) Freight container.
    (b) Fish meal or fish scrap may not be offered for transportation if 
the temperature of the material exceeds 49  deg.C (120  deg.F).
    (c) When fish scrap or fish meal is offered for transportation by 
vessel in bulk in freight containers, the fish meal must contain at 
least 100 ppm of anti-oxident (ethoxyquin) at the time of shipment.



Sec. 173.219  Life-saving appliances.

    (a) A life-saving appliance, self-inflating or non-self-inflating, 
containing small quantities of hazardous materials which are required as 
part of the life-saving appliance must conform to the requirements of 
this section. Packagings must conform to the general packaging 
requirements of subpart B of this part but need not conform to the 
requirements of part 178 of this subchapter.
    (b) Hazardous materials therein must be packaged as follows:
    (1) Nonflammable compressed gases must be packaged in cylinders in 
accordance with the requirements of this subchapter;
    (2) Smoke and illumination signal flares must be in plastic or 
fiberboard receptacles;
    (3) Strike-anywhere matches must be cushioned to prevent movement or 
friction in a cylindrical metal or composition receptacle with a screw-
type closure;
    (4) Flammable liquids must be in strong inner packagings in a repair 
kit; and
    (5) Limited quantities of other hazardous materials are permitted if 
packaged in accordance with the requirements of this subchapter.
    (c) Materials therein not subject to the requirements of this 
subchapter which are an integral part of the life-saving appliance must 
be packaged in a strong fiberglass kit case which is overpacked in a 
waterproof fiberboard packaging, or be packaged in other strong outer 
packagings.



Sec. 173.220  Internal combustion engines, self-propelled vehicles, and mechanical equipment containing internal combustion engines or wet batteries.

    (a) Applicability. An internal combustion engine, self-propelled 
vehicle, or mechanized equipment is subject to the requirements of this 
subchapter when transported as cargo on a transport vehicle, vessel or 
aircraft, if--
    (1) The engine or fuel tank contains a flammable liquid or gaseous 
fuel;

[[Page 489]]

    (2) It is equipped with a wet electric storage battery other than a 
nonspillable battery; or
    (3) It contains other hazardous materials subject to the 
requirements of this subchapter.
    (b) Flammable liquid fuel. Except as provided in this paragraph, 
flammable liquid fuel tanks must be completely drained and securely 
closed. Up to 500 ml (17 ounces) of fuel may be left in engine 
components and fuel lines provided the lines are securely closed to 
prevent leakage of fuel. Fuel may remain in engines and tanks installed 
in self-propelled vehicles and mechanical equipment under the following 
conditions:
    (1) For transportation by motor vehicle or rail car, the fuel tanks 
must be securely closed.
    (2) For transportation by vessel, the shipment must conform to 
Sec. 176.905 of this subchapter; and
    (3) For transportation by aircraft, the shipment must conform to 
Sec. 175.305 of this subchapter.
    (c) Wet batteries. Wet batteries must either be installed, securely 
fastened in an upright position, and protected against short circuits 
and leakage or be removed and packaged separately under Sec. 173.159. In 
addition--
    (1) For transportation by vessel, the provisions of this subchapter 
do not apply to a motor vehicle or mechanical equipment which is 
electrically powered by a wet electric storage battery.
    (2) For transportation by passenger-carrying aircraft, a wheelchair 
equipped with a wet battery must conform to Sec. 173.222.
    (d) Truck bodies or trailers on cars. Truck bodies or trailers with 
automatic heating or refrigerating equipment of the flammable liquid 
type may be shipped with fuel tanks filled and equipment operating or 
inoperative, when used for the transportation of other freight and 
loaded on flat cars as part of a joint rail and highway movement, 
provided the equipment and fuel supply conform to the requirements of 
Sec. 177.834(l) of this subchapter and are of a type which has been 
examined by the Bureau of Explosives and approved by the Associate 
Administrator for Hazardous Materials Safety.
    (e) Gases. Compressed gas tanks and cylinders, containing gases, 
which are component parts of vehicles or mechanical equipment must 
conform to Sec. 173.306.
    (f) Other hazardous materials. Other hazardous materials must be 
packaged and transported in accordance with the requirements of this 
subchapter.
    (g) Exceptions. Except as provided in paragraph (f) of this section, 
shipments made under the provisions of this section--
    (1) Are not subject to any other requirements of this subchapter, 
for transportation by motor vehicle or rail car; and
    (2) Are not subject to the requirements of subparts D, E, and F 
(marking, labeling, and placarding, respectively) of part 172 or 
Sec. 172.604 (emergency response telephone number) of this subchapter 
for transportation by vessel or aircraft.
[Amdt. 173-224, 55 FR 52643 Dec. 21, 1990, as amended by Amdt. 173-253, 
61 FR 27175, May 30, 1996; Amdt. 173-261, 62 FR 24734, May 6, 1997]



Sec. 173.221  Polymeric beads, expandable.

    Polymeric beads or granules, expandable, impregnated with flammable 
gas or liquid as a blowing agent and plastic moulding materials in 
dough, sheet or extruded rope form must be packed in wooden (4C1 or 
4C2), plywood (4D), fiberboard (4G) or reconstituted wood (4F) boxes 
with sealed inner plastic liners, plywood drums (1D), fiber drums (1G) 
with sealed inner plastic liner or in metal (1A1, 1A2, 1B1 or 1B2) 
packagings.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 62 FR 51560, 
Oct. 1, 1997]



Sec. 173.222  Wheelchairs equipped with wet electric storage batteries.

    Wheelchairs equipped with wet storage batteries are not subject to 
the requirements of this subchapter other than the provisions of 
Sec. 175.10(a) (19) and (20) of this subchapter.

[[Page 490]]



Sec. 173.224  Packaging and control and emergency temperatures for self-reactive materials.

    (a) General. When the Sec. 172.101 Table of this subchapter 
specifies that a Division 4.1 material be packaged in accordance with 
this section, only packagings which conform to the provisions of this 
section may be used. Each packaging must conform to the general 
packaging requirements of subpart B of this part and the applicable 
requirements of part 178 of this subchapter. Non-bulk packagings must 
meet Packing Group II performance levels. To avoid unnecessary 
confinement, metallic non-bulk packagings meeting Packing Group I are 
not authorized. Self-reactive materials which require temperature 
control are subject to the provisions of Sec. 173.21(f). Packagings 
required to bear a Class 1 subsidiary label must conform to Secs. 173.60 
through 173.62.
    (b) Self-Reactive Materials Table. The Self-Reactive Materials Table 
specifies, by technical name, those self-reactive materials that are 
authorized for transportation and not subject to the approval provisions 
of Sec. 173.124(a)(2)(iii). A self-reactive material identified by 
technical name in the following table is authorized for transportation 
only if it conforms to all applicable provisions of the table. The 
column headings of the Self-Reactive Materials Table are as follows:
    (1) Technical name. Column 1 specifies the technical name.
    (2) ID number. Column 2 specifies the identification number which is 
used to identify the proper shipping name in the Sec. 172.101 Table.
    (3) Concentration of self-reactive material. Column 3 specifies the 
concentration (percent) limitations, if any, in mixtures or solutions 
for the self-reactive material. Limitations are given as minimums, 
maximums, or a range, as appropriate. A range includes the lower and 
upper limits (i.e., ``53-100'' means from, and including, 53 percent to, 
and including 100 percent).
    (4) Packing method. Column 4 specifies the highest packing method 
which is authorized for the self-reactive material. A packing method 
corresponding to a smaller package size may be used, but a packing 
method corresponding to a larger package size may not be used. The Table 
of Packing Methods in Sec. 173.225(d) defines the packing methods. 
Additional bulk packagings are authorized in paragraph (d) of this 
section for Type F self-reactive materials.
    (5) Control temperature. Column 5 specifies the control temperature 
in  deg.C. Temperatures are specified only when temperature controls are 
required (see Sec. 173.21(f)).
    (6) Emergency temperature. Column 6 specifies the emergency 
temperature in  deg.C. Temperatures are specified only when temperature 
controls are required (see Sec. 173.21(f)).
    (7) Notes. Column 7 specifies other applicable provisions, as set 
forth in notes following the table.

[[Page 491]]



                                                                Self-Reactive Substances                                                                
                                                                                                                                                        
                                   Identification                                                 Control temperature--(        Emergency               
     Self-reactive substance             No.          Concentration--(%)      Packing method              deg.C)               temperature       Notes  
(1)                                          (2)   (3)....................  (4)                 (5).......................  (6)..............        (7)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Azodicarbonamide formulation type           3232   100....................  OP5                 ..........................  .................          1
 B, temperature controlled.                                                                                                                             
Azodicarbonamide formulation type           3224   100....................  OP6                 ..........................  .................  .........
 C.                                                                                                                                                     
Azodicarbonamide formulation type           3234   100....................  OP6                 ..........................  .................          1
 C, temperature controlled.                                                                                                                             
Azodicarbonamide formulation type           3226   100....................  OP7                 ..........................  .................  .........
 D.                                                                                                                                                     
Azodicarbonamide formulation type           3236   100....................  OP7                 ..........................  .................          1
 D, temperature controlled.                                                                                                                             
2,2'-Azodi(2,4-dimethyl-4-                  3236   100....................  OP7                 -5........................  +5...............  .........
 methoxyvaleronitrile).                                                                                                                                 
2,2'-Azodi(2,4-                             3236   100....................  OP7                 +10.......................  +15..............  .........
 dimethylvaleronitrile).                                                                                                                                
2,2'-Azodi(ethyl 2-                         3235   100....................  OP7                 +20.......................  +25..............  .........
 methylpropionate).                                                                                                                                     
1,1-Azodi(hexahydrobenzonitrile).           3226   100....................  OP7                 ..........................  .................  .........
2,2-Azodi(isobutyronitrile)......           3234   100....................  OP6                 +40.......................  +45..............  .........
2,2-Azodi(2-methylbutyronitrile).           3236   100....................  OP7                 +35.......................  +40..............  .........
Benzene-1,3-disulphohydrazide, as           3226   52.....................  OP7                 ..........................  .................  .........
 a paste.                                                                                                                                               
Benzene sulphohydrazide..........           3226   100....................  OP7                 ..........................  .................  .........
4-(Benzyl(ethyl)amino)-3-                   3226   100....................  OP7                 ..........................  .................  .........
 ethoxybenzenediazonium zinc                                                                                                                            
 chloride.                                                                                                                                              
4-(Benzyl(methyl)amino)-3-                  3236   100....................  OP7                 +40.......................  +45..............  .........
 ethoxybenzenediazonium zinc                                                                                                                            
 chloride.                                                                                                                                              
3-Chloro-4-                                 3226   100....................  OP7                 ..........................  .................  .........
 diethylaminobenzenediazonium                                                                                                                           
 zinc chloride.                                                                                                                                         
2-Diazo-1-Naphthol-4-                       3222   100....................  OP5                 ..........................  .................  .........
 sulphochloride.                                                                                                                                        
2-Diazo-1-Naphthol-5-                       3222   100....................  OP5                 ..........................  .................  .........
 sulphochloride.                                                                                                                                        
2,5-Diethoxy-4-                             3236   67-100.................  OP7                 +35.......................  +40..............  .........
 morpholinobenzenediazonium zinc                                                                                                                        
 chloride.                                                                                                                                              
2,5-Diethoxy-4-                             3236   66.....................  OP7                 +40.......................  +45..............  .........
 morpholinobenzenediazonium zinc                                                                                                                        
 chloride.                                                                                                                                              
2,5-Diethoxy-4-                             3236   100....................  OP7                 +30.......................  +35..............  .........
 morpholinobenzenediazonium                                                                                                                             
 tetrafluoroborate.                                                                                                                                     
2,5-Diethoxy-4-                             3236   67.....................  OP7                 +40.......................  +45..............  .........
 (phenylsulphonyl)benzenediazoniu                                                                                                                       
 m zinc chloride.                                                                                                                                       
Diethylene glycol bis(allyl                 3237   88+
Sec. 173.225  Packaging requirements and other provisions for organic peroxides.

    (a) General. When the Sec. 172.101 Table specifies that an organic 
peroxide be packaged under this section, the organic peroxide must be 
packaged and offered for transportation in accordance with the 
provisions of this section. Each packaging must conform to the general 
requirements of subpart B of part 173 and to the applicable requirements 
of part 178 of this subchapter. Non-bulk packagings must meet Packing 
Group II performance levels. To avoid unnecessary confinement, metallic 
non-bulk packagings meeting Packing Group I are not authorized. No used 
material, other than production residues or regrind from the same 
production process, may be used in plastic packagings. Organic peroxides 
which require temperature control are subject to the provisions of 
Sec. 173.21(f).
    (b) Organic peroxides table. The following Organic Peroxides Table 
specifies, by technical name, those organic peroxides that are 
authorized for transportation and not subject to the approval provisions 
of Sec. 173.128 of this part. An organic peroxide identified by 
technical name in the following table is authorized for transportation 
only if it conforms to all applicable provisions of the table. For an 
organic peroxide not identified in the table by technical name or a 
formulation of identified organic peroxides, the provisions of paragraph 
(c) of Sec. 173.128 apply. The column headings of the Organic Peroxides 
table are as follows:
    (1) Technical name. The first column specifies the technical name.

[[Page 494]]

    (2) ID number. The second column specifies the identification (ID) 
number which is used to identify the proper shipping name in the 
Sec. 172.101 Table. The word ``EXEMPT'' appearing in the column denotes 
that the material is not regulated as an organic peroxide.
    (3) Concentration of organic peroxide. The third column specifies 
concentration (mass percent) limitations, if any, in mixtures or 
solutions for the organic peroxide. Limitations are given as minimums, 
maximums, or a range, as appropriate. A range includes the lower and 
upper limits (i.e., ``53-100'' means from, and including, 53 percent to, 
and including 100 percent).
    (4) Concentration of diluents. The fourth column specifies the type 
and concentration (mass percent) of diluent or inert solid, when 
required. Other types and concentrations of diluents may be authorized 
if approved by the Associate Administrator for Hazardous Materials 
Safety.
    (i) The required mass percent of ``Diluent type A'' is specified in 
Column 4a. A diluent type A is an organic liquid that does not 
detrimentally affect the thermal stability or increase the hazard of the 
organic peroxide and with a boiling point not less than 150  deg.C at 
atmospheric pressure. Type A diluents may be used for desensitizing all 
organic peroxides.
    (ii) The required mass percent of ``Diluent type B'' is specified in 
Column 4b. A diluent type B is an organic liquid which is compatible 
with the organic peroxide and which has a boiling point, at atmospheric 
pressure, of less than 150 deg.C (302 deg.F) but at least 60 deg.C 
(140 deg.F), and a flash point greater than 5 deg.C (41 deg.F). Type B 
diluents may be used for desensitizing all organic peroxides provided 
that the boiling point is at least 60 deg.C (140 deg.F) above the SADT 
of the peroxide in a 50 kg (110 lbs) package. A type A diluent may be 
used to replace a type B diluent in equal concentration.
    (iii) The required mass percent of ``Inert solid'' is specified in 
column 4c. An inert solid is a solid that does not detrimentally affect 
the thermal stability or increase the hazard of the organic peroxide.
    (5) Concentration of water. Column 5 specifies, in mass percent, the 
minimum amount of water, if any, which must be in formulation.
    (6) Packing method. Column 6 specifies the highest packing method 
(largest packaging capacity) authorized for the organic peroxide. Lower 
numbered packing methods (smaller packaging capacities) are also 
authorized. For example, if OP3 is specified, then OP2 and OP1 are also 
authorized. When an IBC or bulk packaging is authorized and meets the 
requirements of paragraph (e) of this section, lower control 
temperatures than those specified for non-bulk packagings are required. 
The Table of Packing Methods in paragraph (d) of this section defines 
the non-bulk packing methods.
    (7) Temperatures. Column 7a specifies the control temperature. 
Column 7b specifies the emergency temperature. Temperatures are 
specified only when temperature controls are required. (See 
Sec. 173.21(f)).
    (8) Notes. Column 8 specifies other applicable provisions, as set 
forth in notes following the table.

[[Page 495]]



                                                                 Organic Peroxide Table                                                                 
                                                                                                                                                        
                                                                   Diluent (mass %)                                    Temperature( deg.C)              
        Technical name           ID number     Concentration ---------------------------  Water (mass      Packing   ----------------------     Notes   
                                                 (mass %)        A        B        I           %)          method      Control   Emergency              
(1)                            (2)..........  (3)...........  (4a)...  (4b)...  (4c)...  (5)..........  (6).........  (7a).....  (7b).....  (8)         
--------------------------------------------------------------------------------------------------------------------------------------------------------
Acetyl acetone peroxide......  UN3105.......  42.  8.  OP7.........  .........  .........  2           
                                                               -48.                                                                                     
Acetyl acetone peroxide [as a  UN3106.......  32.  .......  .......  .......  .............  OP7.........  .........  .........  21          
 paste].                                                                                                                                                
Acetyl benzoyl peroxide......  UN3105.......  45.  82.  .......  .......  .......  12  OP4.........  -10......  0                      
 peroxide.                                                                                                                                              
Acetyl cyclohexanesulfonyl     UN3115.......  32.  .......  88.  6.  OP8                                             
                                                               -6.                                                                                      
tert-Amyl peroxyacetate......  UN3107.......  62.  96.  100  .......  .......  .......  .............  OP7.........  +20......  +25                    
 ethylhexanoate.                                                                                                                                        
tert-Amyl peroxy-2-ethylhexyl  UN3105.......  100  .......  .......  .......  .............  OP7                                             
 carbonate.                                                                                                                                             
tert-Amyl peroxyneodecanoate.  UN3115.......  77.  .......  77.  .......  100  .......  .......  .......  .............  OP5                                             
 trimethylhexanoate.                                                                                                                                    
tert-Butyl cumyl peroxide....  UN3105.......  >42-100.......  .......  .......  .......  .............  OP7.........  .........  .........  1, 9        
tert-Butyl cumyl peroxide....  UN3106.......  42.  .......  52-100.......  .......  .......  .......  .............  OP5                                             
 butylperoxy)valerate.                                                                                                                                  
n-Butyl-4,4-di-(tert-          UN3106.......  52.  .......  .......  42.  .......  .......  79-90........  .......  .......  .......  10  OP5.........  .........  .........  13          
tert-Butyl hydroperoxide.....  UN3105.......  80.  79.  .......  .......  .......  >14..........  OP8.........  .........  .........  13, 16      
tert-Butyl hydroperoxide.....  UN3109.......  72.  .......  .......  .......  28  OP8.........  .........  .........  7, 13       
tert-Butyl hydroperoxide       UN3103.......  82+>9.........  .......  .......  .......  7.  OP5.........  .........  .........  13          
 [and] Di- tert-butylperoxide.                                                                                                                          
tert-Butyl monoperoxymaleate.  UN3102.......  >52-100.......  .......  .......  .......  .............  OP5                                             
tert-Butyl monoperoxymaleate.  UN3103.......  52.  52.  .......  .......  52.  .......  .......  .......  .............  OP8                                             
 [as a paste].                                                                                                                                          
tert-Butyl monoperoxymaleate   UN 3110......  42.  .......  .......  .......  .............  OP8.........  .........  .........  7           
 [as a paste].                                                                                                                                          
tert-Butyl                     UN 3102......  100  .......  .......  .......  .............  OP5                                             
 monoperoxyphthalate.                                                                                                                                   
tert-Butyl peroxyacetate.....  UN 3101......  >52-77........  32-52........  32.  32.  .......  22.  .......  77-100.......  52.  .......  .......  52.  77.  100  .......  .......  .......  .............  OP5.........  +20......  +25                    
 peroxydiethylacetate.                                                                                                                                  
tert-Butyl                     UN 3105......  33+  52-100.......  .......  .......  .......  .............  OP6.........  +20......  +25                    
 ethylhexanoate.                                                                                                                                        
tert-Butyl peroxy-2-           UN 3117......  52.  .......  52.  .......  .......  32.  .......  32.  .......  32.  .......  31+  .......  12+  100  .......  .......  .......  .............  OP7                                             
 ethylhexylcarbonate.                                                                                                                                   
tert-Butyl peroxyisobutyrate.  UN 3111......  >52-77........  .......  52.  .......  77.  77.  42.  .......  .......  100  .......  .......  .......  .............  OP5                                             
 methylbenzoate.                                                                                                                                        
tert-Butyl peroxyneodecanoate  UN3115.......  >77-100.......  .......  .......  .......  .............  OP7.........  -5.......  +5                     
tert-Butyl peroxyneodecanoate  UN3115.......  77.  .......  42.  .......  .......  .......  .............  OP8.........  0........  +10                    
 [as a stable dispersion in                                                                                                                             
 water].                                                                                                                                                
tert-Butyl peroxyneodecanoate  UN3118.......  42.  .......  .......  .......  .............  OP8.........  0........  +10                    
 [as a stable dispersion in                                                                                                                             
 water (frozen)].                                                                                                                                       
tert-Butyl                     UN3115.......  77.  100  .......  .......  .......  .............  OP7                                             
 phenylphthalide.                                                                                                                                       
tert-Butyl peroxypivalate....  UN3113.......  >67-77........  67.  .......  27.  .......  27.  .......  27.  .......  100  .......  .......  .......  .............  OP7                                             
 stearylcarbonate.                                                                                                                                      
tert-Butyl peroxy-3,5,5-       UN3105.......  >32-100.......  .......  .......  .......  .............  OP7                                             
 trimethylhexanoate.                                                                                                                                    
tert-Butyl peroxy-3,5,5-       UN3109.......  32.  32.  .......  57-86........  .......  .......  77.  .......  .......  17  OP7.........                                    
                                                                                 -6.                                                                    
3-Chloroperoxybenzoic acid...  UN3106.......  57.  .......  .......  40  OP7.........                                    
                                                                                 -3.                                                                    
Cumyl hydroperoxide..........  UN3107.......  >90-98........  90.  77.  .......  52.  .......  .......  .......  .............  OP8.........  -10......  0                      
 a stable dispersion in                                                                                                                                 
 water].                                                                                                                                                
Cumyl peroxyneoheptanoate....  UN3115.......  77.  77.  .......  91.  .......  .......  .......  9.  OP6.........  .........  .........  13          
Cyclohexanone peroxide(s)....  UN3105.......  72.  .......  72.  .......  .......  .......  .............  OP7.........  .........  .........  5, 21       
 a paste].                                                                                                                                              
Cyclohexanone peroxide(s)....  Exempt.......  32.  .......  .......  57.  .......  8.  OP7.........  +40......  +45......  5           
                                                                        -26.                                                                            
Diacetyl peroxide............  UN3115.......  27.  .......  100  .......  .......  .......  .............  OP8                                             
1,1-Di-(tert-                  UN3103.......  82.  51-100.......  .......  .......  77-94........  .......  .......  .......  6   OP4.........  .........  .........  3           
Dibenzoyl peroxide...........  UN3104.......  77.  .......  .......  .......  23  OP6                                             
Dibenzoyl peroxide...........  UN3106.......  62.  .......  .......  10  OP7           .........                         
                                                                                 -28.                                                                   
Dibenzoyl peroxide [as a       UN3106.......  >52-62........  .......  .......  .......                 OP7.........  .........  .........  21          
 paste].                                                                                                                                                
Dibenzoyl peroxide [as a       UN3108.......  56.  .......  .......           15  OP8                                             
 paste].                                       5.                                                                                                       
Dibenzoyl peroxide...........  UN3106.......  >35-52........  .......  .......  52.  .......  .......  .......  .............  OP8.........  .........  .........  21          
 paste].                                                                                                                                                
Dibenzoyl peroxide [as a       Exempt.......  50.  18  Exempt                                          
 paste].                                                       -14.                                                                                     
Dibenzoyl peroxide...........  UN3107.......  >36-42........  40  OP8                                             
                                                               -18.                                                                                     
Dibenzoyl peroxide...........  UN3107.......  >36-42........  42.  .......  .......  .......  .............  OP8.........  .........  .........  10          
 stable dispersion in water].                                                                                                                           
Dibenzoyl peroxide...........  Exempt.......  35.  .......  .......  87.  .......  .......  .......  13  OP5.........  +25......  +30                    
Di-(4-tert-                    UN3114.......  100  .......  .......  .......  .............  OP6.........  +30......  +35                    
 butylcyclohexyl)peroxydicarb                                                                                                                           
 onate.                                                                                                                                                 
Di-(4-tert-                    UN3119.......  42.  .......  .......  .......  .............  OP8.........  +30......  +35......  10          
 butylcyclohexyl)peroxydicarb                                                                                                                           
 onate [as a stable                                                                                                                                     
 dispersion in water].                                                                                                                                  
Di-tert-butyl peroxide.......  UN3107.......  >32-100.......  .......  .......  .......                 OP8                                             
Di-tert-butyl peroxide.......  UN3109.......  52.  .......  52.  52.  80-100.......  .......  .......  .......                 OP5                                             
 butylperoxy)cyclohexane.                                                                                                                               
1,1-Di-(tert-                  UN3103.......  >52-80........  52.  42.  42.  27.  25.  13.  27-52........  .......  42.  .......  .......  .......  .............  OP8.........  -15......  -5.......              
 [as a stable dispersion in                                                                                                                             
 water (frozen)].                                                                                                                                       
Di-n-butyl peroxydicarbonate.  UN3117.......  27.  .......  52-100.......  .......  .......  .......  .............  OP4.........  -20......  -10......  6           
 peroxydicarbonate.                                                                                                                                     
Di-sec-butyl                   UN3115.......  52.  .......  42-100.......  .......  .......  42.  .......  .......  42-52........  52.  .......  .......  .......  .............  OP7.........  .........  .........  21          
 butylperoxy)phthalate [as a                                                                                                                            
 paste].                                                                                                                                                
Di-(tert-                      UN3107.......  42.  52.  42.  90-100.......  .......  .......  .......                 OP5                                             
 3,5,5- trimethylcyclohexane.                                                                                                                           
1,1-Di-(tert-butylperoxy)-     UN3103.......  >57-90........  57.  .......  .......  57.  32.  100  .......  .......  .......  .............  OP7.........  +30......  +35                    
Dicetyl peroxydicarbonate [as  UN3119.......  42.  .......  .......  .......  .............  OP8.........  +30......  +35......  10          
 a stable dispersion in                                                                                                                                 
 water].                                                                                                                                                
Di-4-chlorobenzoyl peroxide..  UN3102.......  77.  .......  .......  .......  23  OP5                                             
Di-4-chlorobenzoyl peroxide    UN3106.......  52.  .......  .......  .......  .............  OP7.........  .........  .........  21          
 [as a paste].                                                                                                                                          
Di-4-chlorobenzoyl peroxide..  Exempt.......  32.  .......  .......  52-100.......  .......  52-100.......  .......  .......  52.  52.  .......  .......  91-100.......  .......  .......  .......  .............  OP3.........  +5.......  +10                    
 peroxydicarbonate.                                                                                                                                     
Dicyclohexyl                   UN3114.......  91.  .......  .......  .......  9.  OP5.........  +5.......  +10......              
 peroxydicarbonate.                                                                                                                                     
Didecanoyl peroxide..........  UN3114.......  100  .......  .......  .......  .............  OP6.........  +30......  +35                    
2,2-Di-(4,4-di(tert-           UN3106.......  42.  .......  .......  25.  .......  77.  .......  .......  .......  23  OP5.........                                    
 peroxide.                                                                                                                                              
Di-2,4-dichlorobenzoyl         UN3106.......  52.  .......  .......  .......  .............  OP7.........                                    
 peroxide [as a paste with                                                                                                                              
 silicone oil].                                                                                                                                         
Di-(2-ethylhexyl)              UN3113.......  >77-100.......  .......  .......  .......  .............  OP5.........  -20......  -10......              
 peroxydicarbonate.                                                                                                                                     
Di-(2-ethylhexyl)              UN3115.......  77.  .......  .......  .......  .............  OP7.........  -15......  -5                     
 peroxydicarbonate.                                                                                                                                     
Di-(2-ethylhexyl)              UN3119.......  52.  .......  .......  .......  .............  OP8.........  -15......  -5                     
 peroxydicarbonate [as a                                                                                                                                
 stable dispersion in water].                                                                                                                           
Di-(2-ethylhexyl)              UN3118.......  42.  .......  .......  .......  .............  OP8.........  -15......  -5                     
 peroxydicarbonate [as a                                                                                                                                
 stable dispersion in water                                                                                                                             
 (frozen)].                                                                                                                                             
Diethyl peroxydicarbonate....  UN3115.......  27.  10......  0........              
                                                               -73.                                                                                     
2,2-Dihydroperoxypropane.....  UN3102.......  27.  .......  .......  100  .......  .......  .......                 OP7                                             
 hydroxycyclohexyl)peroxide.                                                                                                                            
Diisobutyryl peroxide........  UN3111.......  >32-52........  .......  32.  .......  82.  5.  OP7.........  .........  .........  17          
 dihydroperoxide.                                              -5.                                                                                      
Diisopropyl peroxydicarbonate  UN3112.......  >52-100.......  .......  .......  .......  .............  OP2.........  -15......  -5                     
Diisopropyl peroxydicarbonate  UN3115.......  52.  .......  100  .......  .......  .......  .............  OP7           -10......  0                      
 peroxydicarbonate.                                                                                                                                     
Dilauroyl peroxide...........  UN3106.......  100  .......  .......  .......  .............  OP7                                             

[[Page 499]]

                                                                                                                                                        
Dilauroyl peroxide [as a       UN3109.......  42.  .......  .......  .......  .............  OP8.........  .........  .........  10          
 stable dispersion in water].                                                                                                                           
Di-(2-methylbenzoyl)peroxide.  UN3112.......  87.  .......  .......  .......  13  OP5.........  +30......  +35......              
Di-(4-methylbenzoyl)peroxide   UN3106.......  52.  .......  .......  .......                 OP7                                             
 [as a paste with silicone                                                                                                                              
 oil].                                                                                                                                                  
2,5-Dimethyl-2,5-di-           UN3102.......  >82-100.......  .......  .......  .......                 OP5                                             
 (benzoylperoxy)hexane.                                                                                                                                 
2,5-Dimethyl-2,5-di-           UN3104.......  82.  .......  .......  .......  18  OP5                                             
 (benzoylperoxy)hexane.                                                                                                                                 
2,5-Dimethyl-2,5-di-           UN3106.......  82.  .......  .......  52-100.......  .......  .......  .......  .............  OP7                                             
 butylperoxy)hexane.                                                                                                                                    
2,5-Dimethyl-2,5-di-(tert-     UN3101.......  >87-100.......  .......  .......  .......  .............  OP5                                             
 butylperoxy)hexyne-3.                                                                                                                                  
2,5-Dimethyl-2,5-di-(tert-     UN3103.......  >52-86........  .......  .......  .......  .............  OP5                                             
 butylperoxy)hexyne-3.                                                                                                                                  
2,5-Dimethyl-2,5-di-(tert-     UN3106.......  52.  .......  .......  52.  52.  .......  .......  47.  .......  .......  .......  .............  OP8                                             
 butylperoxy)hexane [as a                                                                                                                               
 paste].                                                                                                                                                
2,5-Dimethyl-2,5-di-(2-        UN3115.......  100  .......  .......  .......  .............  OP7.........  +20......  +25                    
 ethylhexanoylperoxy)hexane.                                                                                                                            
2,5-Dimethyl-2,5-              UN3104.......  82.  .......  .......  .......  18  ............  OP6                               
 dihydroperoxyhexane.                                                                                                                                   
2,5-Dimethyl-2,5-di-(3,5,5-    UN3105.......  77.  52.  .......  100  .......  .......  .......  .............  OP7.........  +20......  +25......              
Dimyristyl peroxydicarbonate   UN3119.......  42.  .......  .......  .......  .............  OP8.........  +20......  +25                    
 [as a stable dispersion in                                                                                                                             
 water].                                                                                                                                                
Dimyristyl peroxydicarbonate   UN3119.......  42.  .......  .......  .......  .............  IBC.........  +15......  +25......  10          
 [as a stable dispersion in                                                                                                                             
 water].                                                                                                                                                
Di-(2-                         UN3115.......  52.  100  .......  .......  .......  .............  OP7.........  0........  +10                    
Di-n-octanoyl peroxide.......  UN3114.......  100  .......  .......  .......  .............  OP5.........  +10......  +15                    
Diperoxy azelaic acid........  UN3116.......  27.  .......  .......  13-42........  .......  .......  13.  .......  .......  85-100.......  .......  .......  .......  .............  OP5                                             
 phenoxyethyl)peroxydicarbona                                                                                                                           
 te.                                                                                                                                                    
Di-(2-                         UN3106.......  85.  .......  .......  .......  15  OP7                                             
 phenoxyethyl)peroxydicarbona                                                                                                                           
 te.                                                                                                                                                    
Dipropionyl peroxide.........  UN3117.......  27.  .......  100  .......  .......  .......  .............  OP4.........  -25......  -15......              
Distearyl peroxydicarbonate..  UN3106.......  87.  .......  .......  72-100.......  .......  .......  .......  .............  OP4.........  .........  .........  18          
Disuccinic acid peroxide.....  UN3116.......  72.  .......  .......  .......  28  OP7.........  +10......  +15                    
Di-(3,5,5-trimethyl-1,2-       UN3116.......  52.  .......  .......  .......  .............  OP7.........  +30......  +35......  21          
 dioxolanyl- 3)peroxide [as a                                                                                                                           
 paste].                                                                                                                                                
Di-(3,5,5-                     UN3115.......  >38-82........  52.  .......  .......  .......  .............  OP8.........  +10......  +15                    
 trimethylhexanoyl)peroxide                                                                                                                             
 [as a stable dispersion in                                                                                                                             
 water].                                                                                                                                                
Di-(3,5,5-                     UN3119.......  38.  38.  38.  67.  77 - 100.....  .......  .......  .......  .............  OP5                                             
 butylperoxy)butyrate.                                                                                                                                  
Ethyl 3,3-di-(tert-            UN3105.......  77.  52.  .......  .......  52 - 100.....  .......  .......  .......  .............  OP4                                             
 1,2,4,5- tetraoxacyclononane.                                                                                                                          
3,3,6,6,9,9-Hexamethyl-        UN3105.......  52.  52.  .......  52   .......  .......  .......  .............  OP5.........  -20......  -10                    
 peroxydicarbonate + di-sec-                   + 28 + 22.                                                                                               

[[Page 500]]

                                                                                                                                                        
Isopropylcumyl hydroperoxide.  UN3109.......  72.   72 - 100....  .......  .......  .......  .............  OP7.........  .........  .........  13          
p-Menthyl hydroperoxide......  UN3109.......  72.  67.  .......  52.  45.  40.  62.  6..  .......  .......  .......  60  Exempt......                                    
 than 20% hydrogen peroxide.                                                                                                                            
Peracetic acid with not more   UN3109.......  17.  .......  .......  .......  27  OP8.........  .........  .........  10, 13      
 than 26% hydrogen peroxide.                                                                                                                            
Peracetic acid with 7%         UN3107.......  36.  .......  .......  .......  15  OP8.........  .........  .........  13          
 hydrogen peroxide.                                                                                                                                     
Peroxyacetic acid, type D,     UN3105.......  43.  .......  .......  .......  .............  OP7.........  .........  .........  13, 20      
 stabilized.                                                                                                                                            
Peroxyacetic acid, type E,     UN3107.......  43.  .......  .......  .......  .............  OP8.........  .........  .........  13, 20      
 stabilized.                                                                                                                                            
Peroxyacetic acid, type F,     UN3109.......  43.  .......  .......  .......  .............  OP8.........  .........  .........  13, 20      
 stabilized.                                                                                                                                            
Pinanyl hydroperoxide........  UN3105.......  56-  .......  .......  .......  .............  OP7.........  .........  .........  13          
                                               100.                                                                                                     
Pinanyl hydroperoxide........  UN3109.......  56............  >44....  .......  .......  .............  OP8.........  .........  .........  7           
Tetrahydronaphthyl             UN3106.......  100  .......  .......  .......  .............  OP7.........                                    
 hydroperoxide.                                                                                                                                         
1,1,3,3-Tetramethylbutyl       UN3105.......  100  .......  .......  .......  .............  OP7.........                                    
 hydroperoxide.                                                                                                                                         
1,1,3,3-                       UN3115.......  100  .......  .......  .......  .............  OP7           +20......  +25......              
 Tetramethylbutylperoxy-2-                                                                                                                              
 ethylhexanoate.                                                                                                                                        
2,4,4-Trimethylpentyl-2-       UN3115.......  72.  .......  52.  .......  .......  .......  .............  OP8           -5.......  +5.......              
 peroxyneodecanoate [as a                                                                                                                               
 stable dispersion in water].                                                                                                                           
2,4,4-Trimethylpentyl-2-       UN3115.......  37.  .......  9 percent.                                                                                                       
6. For domestic shipments, OP5 is authorized.                                                                                                           
7. This material may be transported in intermediate bulk containers and bulk packagings under the provisions of paragraph (e) of this section.          
8. Only non-metallic packagings are authorized.                                                                                                         
9. For domestic shipments, this material may be transported in bulk packagings under the provisions of paragraph (e)(3)(ii) of this section.            
10. This material may be transported in intermediate bulk containers under the provisions of paragraph (e) of this section.                             
11. Up to 2000 kg per container authorized.                                                                                                             
12. Samples may only be offered for transportation under the provisions of paragraph (c)(4) of this section.                                            
13. ``Corrosive'' subsidiary risk label is required.                                                                                                    
14. This material may be transported in bulk packagings under the provisions of paragraph (e) of this section.                                          

[[Page 501]]

                                                                                                                                                        
15. No ``Corrosive'' subsidiary risk label is required for concentrations below 80%.                                                                    
16. With 6% di-tert-butyl peroxide.                                                                                                                     
17. With 8% 1-isopropylhydroperoxy-4-isopropylhydroxybenzene.                                                                                
18. Addition of water to this organic peroxide will decrease its thermal stability.                                                                     
19. [Reserved]                                                                                                                                          
20. Mixtures with hydrogen peroxide, water and acid(s).                                                                                                 
21. With diluent type A, with or without water.                                                                                                         
22. With >36 percent, by mass, ethylbenzene.                                                                                                            
23. With >19 percent, by mass, methyl isobutyl ketone.                                                                                                  
24. Diluent type b with boiling point >100 C.                                                                                                           
25. No ``Corrosive'' subsidiary risk label is required for concentrations below 56%.                                                                    
                                                                                                                                                        

[[Page 502]]

                                                                                                                                                        

    (c) New organic peroxides, formulations and samples. (1) Except as 
provided for samples in paragraph (c)(2) of this section, no person may 
offer for transportation an organic peroxide which is not identified by 
technical name in the Organic Peroxides Table of this section, or a 
formulation of one or more organic peroxides which are identified by 
technical name in that table, unless the organic peroxide is assigned a 
generic type and shipping description and is approved by the Associate 
Administrator for Hazardous Materials Safety under the provisions of 
Sec. 173.128(c) of this subchapter.
    (2) Samples. Samples of new organic peroxides or new formulations of 
organic peroxides identified in the Organic Peroxides Table in paragraph 
(b) of this section, for which complete test data are not available, and 
which are to be transported for further testing or evaluation, may be 
assigned an appropriate shipping description for organic peroxide Type 
C, packaged and offered for transportation, under the following 
conditions:
    (i) Data available to the person offering the material for 
transportation must indicate that the sample would pose a level of 
hazard no greater than that of an organic peroxide Type B and that the 
control temperature, if any, is sufficiently low to prevent any 
dangerous decomposition and sufficiently high to prevent any dangerous 
phase separation;
    (ii) The sample must be packaged in accordance with packing method 
OP2, for a liquid or solid, respectively;
    (iii) Packages of the organic peroxide may be offered for 
transportation and transported in a quantity not to exceed 10 kg (22 
pounds) per transport vehicle; and
    (iv) One of the following shipping descriptions must be assigned:
    (A) Organic peroxide Type C, liquid, 5.2, UN 3103;
    (B) Organic peroxide Type C, solid, 5.2, UN 3104;
    (C) Organic peroxide Type C, liquid, temperature controlled, 5.2, UN 
3113; or
    (D) Organic peroxide Type C, solid, temperature controlled, 5.2, UN 
3114.
    (3) Mixtures. Mixtures of organic peroxides individually identified 
in the Organic Peroxides Table in paragraph (b) of this section may be 
classified as the same type of organic peroxide as that of the most 
dangerous component and be transported under the conditions for 
transportation given for this type. If the stable components form a 
thermally less stable mixture, the SADT of the mixture must be 
determined and the new control and emergency temperature derived under 
the provisions of Sec. 173.21(f).
    (d) Packing Method Table. Packagings for organic peroxides and self-
reactive substances are listed in the Maximum Quantity per Packing 
Method Table. The packing methods are designated OP1 to OP8. The 
quantities specified for each packing method represent the maximum that 
is authorized.
    (1) The following types of packagings are authorized:
    (i) Drums: 1A1, 1A2, 1B1, 1B2, 1D, 1G, 1H1, 1H2;
    (ii) Jerricans: 3A1, 3A2, 3B1, 3B2, 3H1, 3H2;
    (iii) Boxes: 4C1, 4C2, 4D, 4F, 4G, 4H1, 4H2, 4A, 4B; or
    (iv) Composite packagings with a plastic inner receptacle: 6HA1, 
6HA2, 6HB1, 6HB2, 6HC, 6HD1, 6HD2, 6HG1, 6HG2, 6HH1, 6HH2.
    (2) Metal packaging (including inner packagings of combination 
packagings and outer packagings of combination or composite packagings) 
are used only for packing methods OP7 and OP8.
    (3) In combination packagings, glass receptacles are used only as 
inner packagings with a maximum content of 0.5 kg or 0.5 liter.
    (4) The maximum quantity per packaging or package for Packing 
Methods OP1-OP8 must be as follows:

                      Maximum Quantity Per Packaging/Package for Packing Methods OP1 to OP8                     
----------------------------------------------------------------------------------------------------------------
                                                                      Packing method                            
            Maximum quantity             -----------------------------------------------------------------------
                                            OP1     OP2\1\    OP3     OP4\1\    OP5      OP6      OP7      OP8  
----------------------------------------------------------------------------------------------------------------
Solids and combination packagings                                                                               
 (liquid and solid) (kg)................      0.5   0.5/10        5     5/25       25       50       50   \2\200

[[Page 503]]

                                                                                                                
Liquids (L).............................      0.5  .......        5  .......       30       60       60   \3\225
----------------------------------------------------------------------------------------------------------------
\1\ If two values are given, the first applies to the maximum net mass per inner packaging and the second to the
  maximum net mass of the complete package.                                                                     
\2\ 60 kg for jerricans and 100 kg for boxes.                                                                   
\3\ 60 L for jerricans.                                                                                         

    (e) Bulk packagings for organic peroxides. When bulk packagings are 
authorized under the provisions of the Organic Peroxides Table in 
paragraph (b) of this section, only the following packagings are 
authorized:
    (1) Rail cars. Class DOT 103, 104, 105, 109, 111, 112, 114, 115, or 
120 fusion-weld tank car tank are authorized. DOT 103W, 111A60F1 and 
111A60W1 tank car tanks must have bottom outlets effectively sealed from 
inside. Gauging devices are required on DOT 103W tank car tanks. Riveted 
tank car tanks are not authorized.
    (2) Cargo tanks. Specification MC 307, MC 310, MC 311, MC 312, DOT 
407, and DOT 412 cargo tank motor vehicles with a tank design pressure 
of at least 172 kPa (25 psig) are authorized.
    (3) Portable tanks.
    (i) Specification IM 101 intermodal portable tanks are authorized as 
follows:
    (A) Each tank must have a minimum design pressure of 267 kPa (39 
psig), a minimum shell thickness of 6.35 mm (0.250 inch) mild steel.
    (B) Each tank must be equipped with at least two self-reclosing 
pressure relief devices of at least 7.6 cm (3.0 inches) diameter. The 
pressure relief devices must be set at a pressure that is determined by 
the following formula:

Pressure relief valve setting = 1.2  x  [Vapor pressure of lading at 46 
          deg.C (115  deg.F)+Static head of lading+Pressure of gas 
          padding, if any]

    (ii) Specification 57 metal portable tanks are authorized only for 
tert-butyl cumyl peroxide, di-(2-tert-butylperoxyisopropyl-benzene(s), 
dicumyl peroxide and mixtures of two or more of these peroxides.
    (4) For tertiary butyl hydroperoxide (TBHP), each tank car, cargo 
tank or portable tank must contain 7.6 cm (3.0 inches) low density 
polyethylene (PE) saddles having a melt index of at least 0.2 grams per 
10 minutes (ASTM D1238, condition E) as part of the lading, with a ratio 
of PE to TBHP over a range of 0.008 to 0.012 by mass. Alternatively, 
plastic or metal containers equipped with fusible plugs having a melting 
point between 69  deg.C (156  deg.F) and 71  deg.C (160  deg.F) and 
filled with a sufficient quantity of water to dilute the TBHP to 65 
percent or less by mass may be used. The PE saddles must be visually 
inspected after each trip and, at a minimum, once every 12 months, and 
replaced when discoloration, fracture, severe deformation, or other 
indication of change is noted.
    (5) Intermediate bulk containers. Intermediate bulk containers that 
are tested at the Packing Group II performance level in accordance with 
subpart O of part 178 of this subchapter are authorized as follows:
    (i) Composite: 31HA1;
    (ii) Rigid plastic: 31H1; and
    (iii) Metal: 31A.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.225, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.226  Materials poisonous by inhalation, Division 6.1, Packing Group I, Hazard Zone A.

    Division 6.1, Packing Group I, materials that are poisonous by 
inhalation and that fall within the boundaries of Hazard Zone A in the 
graph found in Sec. 173.133 must be packed in non-bulk packagings in 
accordance with the following paragraphs:
    (a) In specification cylinders, as authorized in Sec. 173.40.
    (b) In 1A1, 1B1, 1H1, 1N1, or 6HA1 drums further packed in a 1A2 or 
1H2 drum. Both inner and outer drums

[[Page 504]]

must conform to the performance test requirements of subpart M of part 
178 of this subchapter at the Packing Group I performance level. The 
outer drum must have a minimum thickness of 1.35 mm (0.053 inch) for a 
1A2 outer drum or 6.30 mm (0.248 inch) for a 1H2 outer drum. Outer 1A2 
and 1H2 drums must withstand a hydrostatic test pressure of 100 kPa (15 
psi). Capacity of the inner drum may not exceed 220 L (58 gallons). In 
addition, the inner drum must--
    (1) Be capable of satisfactorily withstanding the hydrostatic 
pressure test in Sec. 178.605 of this subchapter at a test pressure of 
550 kPa (80 psig);
    (2) Satisfactorily withstand the leakproofness test in Sec. 178.604 
of this subchapter using an internal air pressure of at least twice the 
vapor pressure at 55  deg.C (131  deg.F) of the material to be packaged;
    (3) Have screw-type closures that are--
    (i) Closed and tightened to a torque prescribed by the closure 
manufacturer, using a device that is capable of measuring torque;
    (ii) Physically held in place by any means capable of preventing 
back-off or loosening of the closure by impact or vibration during 
transportation; and
    (iii) Provided with a cap seal that is properly applied in 
accordance with the cap seal manufacturer's recommendations and is 
capable of withstanding an internal pressure of at least 100 kPa (15 
psig).
    (4) Have a minimum thickness as follows:
    (i) If the capacity of the inner drum is less than or equal to 120 L 
(32 gallons), the minimum thickness of the inner drum is--
    (A) For a 1A1 or 1N1 drum, 1.3 mm (0.051 inch);
    (B) For a 1B1 drum, 3.9 mm (0.154 inch);
    (C) For a 1H1 drum, 3.16 mm (0.124 inch); and
    (D) For a 6HA1 drum, the plastic inner container shall be 1.58 mm 
(0.0622 inch) and the outer steel drum shall be 0.96 mm (0.0378 inch).
    (ii) If the capacity of the inner drum is greater than 120 L (32 
gallons), the thickness of the inner drum is--
    (A) For a 1A1 or 1N1 drum, 1.7 mm (0.067 inch);
    (B) For a 1B1 drum, 4.7 mm (0.185 inch);
    (C) For a 1H1 drum, 3.16 mm (0.124 inch); and
    (D) For a 6HA1 drum, the plastic inner container shall be 1.58 mm 
(0.0622 inch) and the outer steel drum shall be 1.08 mm (0.043 inch); 
and
    (5) Be isolated from the outer drum by a shock-mitigating, non-
reactive material.
    (c) In combination packagings, consisting of an inner packaging 
system and an outer packaging, as follows:
    (1) Outer packagings:

Steel drum: 1A2
Aluminum drum: 1B2
Metal drum, other than steel or aluminum: 1N2
Plywood drum: 1D
Fiber drum: 1G
Plastic drum: 1H2
Wooden barrel: 2C2
Steel jerrican: 3A2
Plastic jerrican: 3H2
Aluminum jerrican: 3B2
Steel box: 4A
Aluminum box: 4B
Natural wood box: 4C1 or 4C2
Plywood box: 4D
Reconstituted wood box: 4F
Fiberboard box: 4G
Expanded plastic box: 4H2
Solid plastic box: 4H2

    (2) Inner packaging system. The inner packaging system consists of 
two packagings: an impact-resistant receptacle of glass, earthenware, 
plastic or metal securely cushioned with a non-reactive, absorbent 
material and packed within a leak-tight packaging of metal or plastic. 
This combination packaging in turn is packed within the outer packaging. 
Capacity of each inner receptacle may not exceed 4 L (1 gallon). An 
inner receptacle that has a closure must have a closure which is 
physically held in place by any means capable of preventing back-off or 
loosening of the closure by impact or vibration during transportation. 
Both the inner packaging system and the outer packaging must conform to 
the performance test requirements of subpart M of part 178 of this 
subchapter, at the Packaging Group I performance level. The inner 
packaging system must meet these tests without the benefit of the outer 
packaging. The total amount of

[[Page 505]]

liquid contained in the outer packaging may not exceed 16 L (4 gallons).
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66274, 
Dec. 20, 1991; Amdt. 173-236, 58 FR 50236, Sept. 24, 1993; Amdt. 173-
138, 59 FR 49134, Sept. 26, 1994; Amdt. 173-241, 59 FR 67517, Dec. 29, 
1994; Amdt 173-261, 62 FR 24741, May 6, 1997]



Sec. 173.227  Materials poisonous by inhalation. Division 6.1, Packing Group I, Hazard Zone B.

    Division 6.1, Packing Group I, materials that are poisonous by 
inhalation and that fall within the boundaries of Hazard Zone B in the 
graph found in Sec. 173.133 shall be packed in non-bulk packagings which 
conform to the performance test requirements of subpart M of part 178 of 
this subchapter, at the Packing Group I performance level. The following 
packagings are authorized:
    (a) Packagings as authorized in Sec. 173.226.
    (b) 1A1, 1B1, 1N1 or 1H1 drum or 6HA1 composite further packed in a 
1A2 or 1H2 drum. Both the inner and outer drums must conform to the 
performance test requirements of subpart M of part 178 of this 
subchapter at the Packing Group I performance level. The outer drum must 
have a minimum thickness of 1.35 mm (0.053 inches) for a 1A2 outer drum 
or 6.30 mm (0.248 inches) for a 1H2 outer drum. Outer 1A2 and 1H2 drums 
must withstand a hydrostatic test pressure of 100 kPa (15 psi). In 
addition, the inner drum must--
    (1) Satisfactorily withstand the leakproofness test in Sec. 178.604 
of this subchapter using an internal air pressure of at least two times 
the vapor pressure at 55  deg.C (131  deg.F) of the material to be 
packaged;
    (2) Have screw closures that are--
    (i) Closed and tightened to a torque prescribed by the closure 
manufacturer, using a device that is capable of measuring torque;
    (ii) Physically held in place by any means capable of preventing 
back-off or loosening of the closure by impact or vibration during 
transportation; and
    (iii) Provided with a cap seal that is properly applied in 
accordance with the cap seal manufacturer's recommendations and is 
capable of withstanding an internal pressure of at least 100 kPa (15 
psig).
    (3) Have a minimum thickness as follows:
    (i) If the capacity of the inner drum is less than or equal to 30 L 
(7.9 gallons), the minimum thickness of the inner drum is:
    (A) For a 1A1 drum, 0.69 mm (0.027 inch);
    (B) For a 1B1 drum, 2.79 mm (0.110 inch);
    (C) For a 1H1 drum, 1.14 mm (0.045 inch); and
    (D) For a 6HA1 drum, the plastic inner container shall be 1.58 mm 
(0.0625 inch), the outer steel drum shall be 0.70 mm (0.027 inch).
    (ii) If the capacity of the inner drum is greater than 30 L (7.9 
gallons) but less than or equal to 120 L (32 gallons), the minimum 
thickness of the inner drum is--
    (A) For a 1A1 drum, 1.08 mm (.043 inch);
    (B) For a 1B1 drum, 3.9 mm (0.154 inch);
    (C) For a 1H1 drum, 3.16 mm (0.124 inch); and
    (D) For a 6HA1 drum, the plastic inner container shall be 1.58 mm 
(0.0625 inch) and the outer steel drum shall be 0.96 mm (0.0378 inches).
    (iii) If the capacity of the inner drum is greater than 120 L (31.7 
gallons), the thickness of the inner drum is--
    (A) For a 1A1 or 1N1 drum, 1.35 mm (0.053 inches);
    (B) For a 1B1 drum, 4.7 mm (0.185 inches);
    (C) For a 1H1 drum, 3.16 mm (0.124 inches); and
    (D) For a 6HA1 drum, the plastic inner container shall be 1.58 mm 
(0.0625 inch) and the outer steel drum shall be 1.08 mm (0.043 inch).
    (4) Be isolated from the outer drum by a shock-mitigating, non-
reactive material; and
    (5) Have a capacity not greater than 220 L (58 gallons).
    (c) 1A1, 1B1, 1H1, 1N1 or 6HA1 drums described in paragraph (b) of 
this section may be used without being further packed in a 1A2 or 1H2 
drum if the shipper loads the material, blocks and braces the drums 
within the transport vehicle and seals the transport vehicle

[[Page 506]]

used. Drums may not be stacked (double decked) within the transport 
vehicle. Shipments must be from one origin to one destination only 
without any intermediate pickup or delivery.
[Amdt. 173-224, 55 FR 52643, Dec. 21, 1990, as amended at 56 FR 66274, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992; Amdt. 173-236, 58 FR 50236, 
Sept. 24, 1993; Amdt. 173-138, 59 FR 49134, Sept. 26, 1994]



Sec. 173.228  Bromine pentafluoride or bromine trifluoride.

    (a) When the Sec. 172.101 Table specifies that a hazardous material 
be packaged under this section, only non-bulk packagings prescribed in 
paragraph (b) of this section are authorized for its transportation. 
Each packaging must conform to the general packaging requirements of 
subpart B of this part, to the specification requirements of part 178 of 
this subchapter and to the requirements of the special provisions of 
Column 7 of the Sec. 172.101 Table.
    (b) Specification 3A150, 3AA150, 3B240, 3BN150, 4B240, 4BA240, 
4BW240 and 3E1800 cylinders are authorized. Each valve outlet must be 
sealed by a threaded cap or threaded plug. Cylinder valves must be 
protected as specified for corrosive gases in Sec. 173.301(g). No 
cylinder may be equipped with any pressure relief device. Specification 
3E1800 cylinders must be packaged in accordance with the requirements of 
Sec. 173.301(k).



Sec. 173.229  Chloric acid solution or chlorine dioxide hydrate, frozen.

    When the Sec. 172.101 Table specifies that a hazardous material be 
packaged in accordance with this section, only 4G fiberboard boxes, with 
inner packagings of polyethylene or other suitable material, are 
authorized. Fiberboard boxes must be reinforced and insulated and 
sufficient dry ice must be used to maintain the hydrate or acid in a 
frozen state during transportation. Each packaging must conform to the 
general packaging requirements of subpart B of part 173, and to the 
requirements of part 178 of this subchapter at the Packing Group I 
performance level. Transportation is authorized only by private or 
contract carrier by motor vehicle.



Subpart F--Bulk Packaging for Hazardous Materials Other Than Class 1 and 
                                 Class 7



Sec. 173.240  Bulk packaging for certain low hazard solid materials.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
Column 7 of the Sec. 172.101 Table.
    (a) Rail cars: Class DOT 103, 104, 105, 109, 111, 112, 114, 115, or 
120 tank car tanks; Class 106 or 110 multi-unit tank car tanks; and 
metal non-DOT specification, sift-proof tank car tanks and sift-proof 
closed cars.
    (b) Motor vehicles: Specification MC 300, MC 301, MC 302, MC 303, MC 
304, MC 305, MC 306, MC 307, MC 310, MC 311, MC 312, MC 330, MC 331, DOT 
406, DOT 407, and DOT 412 cargo tank motor vehicles; non-DOT 
specification, sift-proof cargo tank motor vehicles; and sift-proof 
closed vehicles.
    (c) Portable tanks and closed bulk bins: DOT 51, 52, 53, 56, 57 and 
60 portable tanks; IMO type 1, 2 and 5, and IM 101 and IM 102 portable 
tanks; marine portable tanks conforming to 46 CFR part 64; and sift-
proof non-DOT specification portable tanks and closed bulk bins.
    (d) Intermediate bulk containers. Intermediate bulk containers are 
authorized subject to the conditions and limitations of this paragraph 
and paragraph (d)(2) of this section provided they conform to the 
requirements in subpart O of part 178 of this subchapter at the Packing 
Group performance level specified in column 5 of the Sec. 172.101 Table 
of this subchapter for the material being transported.
    (1) The following are authorized:
    (i) Composite: 11HZ1, 11HZ2, 21HZ1, 21HZ2, 31HZ1, or 31HZ2. For 
composite intermediate bulk containers, the letter ``Z'' must be 
replaced with a capital letter which indicates the material of 
construction of the outer packaging. For example 21HA1 is a composite 
intermediate bulk container with a metal outer packaging (see 
Sec. 178.702 of this subchapter);
    (ii) Fiberboard: 11G;

[[Page 507]]

    (iii) Flexible: 13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3, 
13L4, or 13M2;
    (iv) Metal: 11A, 11B, 11N, 21A, 21B, 21N, 31A, 31B, or 31N;
    (v) Rigid plastic: 11H1, 11H2, 21H1, 21H2, 31H1, or 31H2; or
    (vi) Wooden intermediate bulk containers: 11C, 11D, or 11F.
    (2) The following conditions and limitations apply to the use of 
intermediate bulk containers:
    (i) Flexible, fiberboard and wooden intermediate bulk containers are 
intended for the transport of solids only and may not be used for 
liquids or materials that may become liquid during transportation; or
    (ii) Flexible, fiberboard, or wooden intermediate bulk containers 
containing materials in Packing Group II must be packed in a closed 
freight container or a closed transport vehicle.
[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66274, 
Dec. 20, 1991; Amdt. 173-238, 59 FR 38067, July 26, 1994; Amdt. 173-252, 
61 FR 28676, June 5, 1996]



Sec. 173.241  Bulk packagings for certain low hazard liquid and solid materials.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
Column 7 of the Sec. 172.101 Table.
    (a) Rail cars: Class DOT 103, 104, 105, 109, 111, 112, 114, 115, or 
120 tank car tanks; Class 106 or 110 multi-unit tank car tanks and AAR 
Class 203W, 206W, and 211W tank car tanks.
    (b) Cargo tanks: DOT specification MC 300, MC 301, MC 302, MC 303, 
MC 304, MC 305, MC 306, MC 307, MC 310, MC 311, MC 312, MC 330, MC 331, 
DOT 406, DOT 407, and DOT 412 cargo tank motor vehicles; and non-DOT 
specification cargo tank motor vehicles suitable for transport of 
liquids.
    (c) Portable tanks: DOT 51, 52, 56, 57 and 60 portable tanks; IMO 
type 1, 2 and 5, and IM 101 and IM 102 portable tanks; marine portable 
tanks conforming to 46 CFR part 64; and non-DOT specification portable 
tanks suitable for transport of liquids.
    (d) Intermediate bulk containers. (1) Intermediate bulk containers 
are authorized subject to the conditions and limitations of this 
paragraph and paragraph (d)(2) of this section provided they conform to 
the requirements in subpart O of part 178 of this subchapter at the 
Packing Group performance level specified in column 5 of the 
Sec. 172.101 Table of this subchapter for the material being 
transported.
    (i) The following are authorized for liquids or solids:
    (A) Composite: 31HZ1 or 31HZ2; For each composite intermediate bulk 
container, the letter ``Z'' must be replaced with a capital letter which 
indicates the material of construction of the outer packaging. For 
example, 31HA1 is a composite intermediate bulk container with a metal 
outer packaging (see Sec. 178.702 of this subchapter);
    (B) Metal: 31A, 31B, or 31N; or
    (C) Rigid plastic: 31H1 or 31H2.
    (ii) The following are authorized for solids only:
    (A) Composite: 11HZ1, 11HZ2, 21HZ1, or 21HZ2. For each composite 
intermediate bulk container, the letter ``Z'' must be replaced with a 
capital letter which indicates the material of construction of the outer 
packaging. For example, 21HA1 is a composite intermediate bulk container 
with a metal outer packaging (see Sec. 178.702 of this subchapter);
    (B) Fiberboard: 11G;
    (C) Flexible: 13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3, 13L4, 
or 13M2;
    (D) Metal: 11A, 11B, 11N, 21A, 21B, or 21N;
    (E) Rigid plastic: 11H1, 11H2, 21H1, or 21H2; or
    (F) Wooden: 11C, 11D, or 11F.
    (2) The following conditions and limitations apply to the use of 
intermediate bulk containers:
    (i) Flexible, fiberboard and wooden intermediate bulk containers are 
intended for the transport of solids only and may not be used for 
liquids or materials that may become liquid during transportation;
    (ii) Only liquids with a vapor pressure less than or equal to 110 
kPa (16 psig) at 50  deg.C (122  deg.F), or 130 kPa (18.9 psig) at 55 
deg.C (131  deg.F), are authorized in metal intermediate bulk 
containers; or

[[Page 508]]

    (iii) Flexible, fiberboard, or wooden intermediate bulk containers 
containing materials in Packing Group II must be packed in a closed 
freight container or a closed transport vehicle.
[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66275, 
Dec. 20, 1991; Amdt. 173-238, 59 FR 38067, July 26, 1994; Amdt. 173-252, 
61 FR 28676, June 5, 1996]



Sec. 173.242  Bulk packagings for certain medium hazard liquids and solids, including solids with dual hazards.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
Column 7 of the Sec. 172.101 Table.
    (a) Rail cars: Class DOT 103, 104, 105, 109, 111, 112, 114, 115, or 
120 tank car tanks; Class 106 or 110 multi-unit tank car tanks and AAR 
Class 206W tank car tanks.
    (b) Cargo tanks: Specification MC 300, MC 301, MC 302, MC 303, MC 
304, MC 305, MC 306, MC 307, MC 310, MC 311, MC 312, MC 330, MC 331, DOT 
406, DOT 407, and DOT 412 cargo tank motor vehicles. Cargo tanks used to 
transport Class 3, Packing Group I or II, or Packing Group III with a 
flash point of less than 38  deg.C (100  deg.F); Class 6, Packing Group 
I or II; and Class 8, Packing Group I or II materials must conform to 
the following special requirements:
    (1) Pressure relief system: Except as provided by Sec. 173.33(d), 
each cargo tank must be equipped with a pressure relief system meeting 
the requirements of Sec. 178.346-3 or Sec. 178.347-4 of this subchapter. 
However, pressure relief devices on MC 310, MC 311 and MC 312 cargo 
tanks must meet the requirements for a Specification MC 307 cargo tank 
(except for Class 8, Packing Group I and II). Pressure relief devices on 
MC 330 and MC 331 cargo tanks must meet the requirement in Sec. 178.337-
9 of this subchapter.
    (2) Bottom outlets: DOT 406, DOT 407 and DOT 412 must be equipped 
with stop-valves meeting the requirements of Sec. 178.345-11 of this 
subchapter; MC 304, MC 307, MC 310, MC 311, and MC 312 cargo tanks must 
be equipped with stop-valves capable of being remotely closed within 30 
seconds of actuation by manual or mechanic means and (except for Class 
8, Packing Group I and II) by a closure activated at a temperature not 
over 121  deg.C (250  deg.F); MC 330 and MC 331 cargo tanks must be 
equipped with internal self-closing stop-valves meeting the requirements 
in Sec. 178.337-11 of this subchapter.
    (c) Portable tanks: DOT 51, 52, 53, 56, 57 and 60 portable tanks; 
and marine portable tanks conforming to 46 CFR part 64. DOT 57 portable 
tanks used for the transportation by vessel of Class 3, Packing Group 
II, materials must conform to the following:
    (1) Each tank must have a minimum design pressure of 62 kPa (9 psig) 
and be equipped in accordance with Sec. 178.253-4 of this subchapter, 
except that frangible devices are not authorized; and
    (2) No pressure relief device may open at less than 34.4 kPa (5 
psig).
    (d) Intermediate bulk containers. (1) Intermediate bulk containers 
are authorized subject to the conditions and limitations of this 
paragraph and paragraph (d)(2) of this section provided they conform to 
the requirements in subpart O of part 178 of this subchapter at the 
Packing Group performance level specified in column 5 of the 
Sec. 172.101 Table of this subchapter for the material being 
transported.
    (i) The following are authorized for liquids or solids:
    (A) Composite intermediate bulk containers: 31HZ1 or 31HZ2; for each 
composite intermediate bulk container, the letter ``Z'' must be replaced 
with a capital letter which indicates the material of construction of 
the outer packaging. For example, 21HA1 is a composite intermediate bulk 
container with a metal outer packaging (see Sec. 178.702 of this 
subchapter);
    (B) Metal: 31A, 31B, or 31N; or
    (C) Rigid plastic: 31H1 or 31H2;
    (ii) The following are authorized for solids only:
    (A) Composite: 11HZ1, 11HZ2, 21HZ1, or 21HZ2. For each composite 
intermediate bulk container, the letter ``Z'' must be replaced with a 
capital letter which indicates the material of construction of the outer 
packaging. For example, 21HA1 is a composite intermediate bulk container 
with a metal

[[Page 509]]

outer packaging (see Sec. 178.702 of this subchapter);
    (B) Fiberboard: 11G;
    (C) Flexible: 13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3, 13L4, 
or 13M2;
    (D) Metal: 11A, 11B, 11N, 21A, 21B, or 21N;
    (E) Rigid plastic: 11H1, 11H2, 21H1, or 21H2; or
    (F) Wooden intermediate bulk containers: 11C, 11D, or 11F.
    (2) Intermediate bulk containers are authorized subject to the 
following conditions and limitations:
    (i) No Packing Group I liquids or materials classified as Division 
4.2 Packing Group I are authorized in intermediate bulk containers. 
Packing Group I solids are only authorized in metal intermediate bulk 
containers with capacities up to 3 cubic meters (106 cubic feet) and in 
rigid plastic, composite, flexible, fiberboard and wooden intermediate 
bulk containers with capacities of up to 1.5 cubic meters (53 cubic 
feet);
    (ii) Flexible, fiberboard and wooden intermediate bulk containers 
are intended for the transport of solids only and may not be used for 
liquids or materials that may become liquid during transportation;
    (iii) Only liquids with a vapor pressure less than or equal to 110 
kPa (16 psig) at 50  deg.C (122  deg.F), or 130 kPa (18.9 psig) at 55 
deg.C (131  deg.F), are authorized in metal intermediate bulk 
containers; or
    (iv) Flexible, fiberboard, or wooden intermediate bulk containers 
and composite intermediate bulk containers, with a fiberboard outer 
body, containing materials in Packing Group I must be packed in a closed 
freight container or a closed transport vehicle. Flexible, fiberboard, 
or wooden intermediate bulk containers containing materials in Packing 
Group II must be packed in a closed freight container or a closed 
transport vehicle.
[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66275, 
Dec. 20, 1991; Amdt. 173-238, 59 FR 38067, July 26, 1994; Amdt. 173-243, 
60 FR 40038, Aug. 4, 1995; Amdt. 173-246, 60 FR 49110, Sept. 21, 1995; 
Amdt. 173-252, 61 FR 28676, June 5, 1996; 62 FR 51560, Oct. 1, 1997]



Sec. 173.243  Bulk packaging for certain high hazard liquids and dual hazard materials which pose a moderate hazard.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
Column 7 of the Sec. 172.101 Table.
    (a) Rail cars: Class DOT 103, 104, 105, 109, 111, 112, 114, 115, or 
120 fusion-welded tank car tanks; and Class 106 or 110 multi-unit tank 
car tanks.
    (b) Cargo tanks. Specification MC 304, MC 307, MC 330, MC 331 cargo 
tank motor vehicles; and MC 310, MC 311, MC 312, DOT 407, and DOT 412 
cargo tank motor vehicles with tank design pressure of at least 172.4 
kPa (25 psig). Cargo tanks used to transport Class 3 or Division 6.1 
materials, or Class 8, Packing Group I or II materials must conform to 
the following special requirements:
    (1) Pressure relief system: Except as provided by Sec. 173.33(d), 
each cargo tank must be equipped with a pressure relief system meeting 
the requirements of Sec. 178.346-3 or 178.347-4 of this subchapter. 
However, pressure relief devices on MC 310, MC 311 and MC 312 cargo 
tanks must meet the requirements for a Specification MC 307 cargo tank 
(except for Class 8, Packing Group I and II). Pressure relief devices on 
MC 330 and MC 331 cargo tanks must meet the requirement in Sec. 178.337-
9 of this subchapter.
    (2) Bottom outlets: DOT 407 and DOT 412 cargo tanks must be equipped 
with stop-valves meeting the requirements of Sec. 178.345-11 of this 
subchapter; MC 304, MC 307, MC 310, MC 311, and MC 312 cargo tanks must 
be equipped with stop-valves capable of being remotely closed within 30 
seconds of actuation by manual or mechanic means and (except for Class 
8, Packing Group I and II) by a closure activated at a temperature not 
over 121  deg.C (250  deg.F); MC 330 and MC 331 cargo tanks must be 
equipped with internal self-closing stop-valves meeting the requirements 
in Sec. 178.337-11 of this subchapter.

[[Page 510]]

    (c) Portable tanks: DOT 51 and DOT 60 portable tanks; and marine 
portable tanks conforming to 46 CFR part 64 with design pressure of at 
least 172.4 kPa (25 psig).
    (d) Intermediate bulk containers. (1) Metal intermediate bulk 
containers (31A, 31B, 31N) are authorized subject to the conditions and 
limitations of paragraph (d)(2) of this section provided they conform to 
the requirements in subpart O of part 178 of this subchapter at the 
Packing Group performance level specified in column 5 of the 
Sec. 172.101 Table of this subchapter for the material being 
transported.
    (2) Intermediate bulk containers are authorized subject to the 
following conditions and limitations:
    (i) No Packing Group I liquids or materials classified as Division 
4.2 Packing Group I are authorized in intermediate bulk containers.
    (ii) Packing Group I solids are authorized only in metal 
intermediate bulk containers with capacities up to three cubic meters 
(106 cubic feet); and
    (iii) Liquids with a vapor pressure greater than 110 kPa (16 psig) 
at 50  deg.C (122  deg.F), or 130 kPa (18.9 psig) at 55  deg.C (131 
deg.F), are not authorized in metal intermediate bulk containers.
    (e) A dual hazard material may be packaged in accordance with 
Sec. 173.242 if:
    (1) The subsidiary hazard is Class 3 with a flash point greater than 
38  deg.C (100 deg.F); or
    (2) The subsidiary hazard is Division 6.1, Packing Group III.
[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66275, 
Dec. 20, 1991; Amdt. 173-138, 59 FR 49134, Sept. 26, 1994; Amdt. 173-
238, 59 FR 38068, July 26, 1994; Amdt. 173-243, 60 FR 40038, Aug. 4, 
1995; Amdt. 173-246, 60 FR 49110, Sept. 21, 1995; Amdt. 173-252, 61 FR 
28676, June 5, 1996; 62 FR 51560, Oct. 1, 1997]



Sec. 173.244  Bulk packaging for certain pyrophoric liquids (Division 4.2), dangerous when wet (Division 4.3) materials, and poisonous liquids with inhalation 
          hazards (Division 6.1).

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
Column 7 of the Sec. 172.101 Table.
    (a) Rail cars: Class DOT 105, 109, 112, 114, or 120 fusion-welded 
tank car tanks; and Class 106 or 110 multi-unit tank car tanks.
    (b) Cargo tanks: Specifications MC 330 and MC 331 cargo tank motor 
vehicles and, except for Division 4.2 materials, MC 312 and DOT 412 
cargo tank motor vehicles.
    (c) Portable tanks: DOT 51 portable tanks.
[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66275, 
Dec. 20, 1991; 57 FR 45463, Oct. 1, 1992; Amdt. 173-252, 61 FR 28676, 
June 5, 1996]



Sec. 173.245  Bulk packaging for extremely hazardous materials such as poisonous gases (Division 2.3).

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
Column 7 of the Sec. 172.101 Table.
    (a) Tank car tanks and multi-unit tank car tanks, when approved by 
the Associate Administrator for Hazardous Materials Safety.
    (b) Cargo tank motor vehicles and portable tanks, when approved by 
the Associate Administrator for Hazardous Materials Safety.
[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66275, 
Dec. 20, 1991]



Sec. 173.247  Bulk packaging for certain elevated temperature materials (Class 9) and certain flammable elevated temperature materials (Class 3).

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions in Column 7 
of the Sec. 172.101 Table. On or after October 1, 1993, authorized 
packagings must meet all requirements in paragraph (g) of this section, 
unless otherwise excepted.
    (a) Rail cars: Class DOT 103, 104, 105, 109, 111, 112, 114, 115 tank 
car tanks;

[[Page 511]]

Class DOT 106, 110 multi-unit tank car tanks; AAR Class 203W, 206W, 211W 
tank car tanks; and non-DOT specification tank car tanks equivalent in 
structural design and accident damage resistance to specification 
packagings.
    (b) Cargo tanks: Specification MC 300, MC 301, MC 302, MC 303, MC 
304, MC 305, MC 306, MC 307, MC 310, MC 311, MC 312, MC 330, MC 331 
cargo tank motor vehicles; DOT 406, DOT 407, DOT 412 cargo tank motor 
vehicles; and non-DOT specification cargo tank motor vehicles equivalent 
in structural design and accident damage resistance to specification 
packagings. A non-DOT specification cargo tank motor vehicle constructed 
of carbon steel which is in elevated temperature material service is 
excepted from Sec. 178.345-7(d)(5) of this subchapter.
    (c) Portable tanks: Specification 51, 52, 53, 56, 57, 60 portable 
tanks; IM 101, 102 portable tanks; marine portable tanks conforming to 
46 CFR Part 64; and non-specification portable tanks equivalent in 
structural design and accident damage resistance to specification 
packagings.
    (d) Crucibles: Nonspecification crucibles designed and constructed 
such that the stress in the packaging does not exceed one fourth (0.25) 
of the ultimate strength of the packaging material at any temperature 
within the design temperature range. Stress is determined under a load 
equal to the sum of the static or working pressure in combination with 
the loads developed from accelerations and decelerations incident to 
normal transportation. For highway transportation, these forces are 
assumed to be ``1.7g'' vertical, ``0.75g'' longitudinal, and ``0.4g'' 
transverse, in reference to the axes of the transport vehicle. Each 
accelerative or decelerative load may be considered separately.
    (e) Kettles: A kettle, for the purpose of this section, is a bulk 
packaging (portable tank or cargo tank) having a capacity not greater 
than 5678 L (1500 gallons) with an integral heating apparatus used for 
melting various bituminous products such as asphalt. Kettles used for 
the transport of asphalt or bitumen are subject to the following 
requirements:
    (1) Low stability kettles. Kettles with a ratio of track-width to 
fully loaded center of gravity (CG) height less than 2.5 must meet all 
requirements of paragraph (g) of this section (track-width is the 
distance measured between the outer edge of the kettle tires; CG height 
is measured perpendicular from the road surface).
    (2) High stability kettles. (i) Kettles with a total capacity of 
less than 2650 L (700 gallons) and a ratio of track-width to fully 
loaded CG height of 2.5 or more are excepted from all requirements of 
paragraph (g)(2) of this section and the rollover protection 
requirements of paragraph (g)(6) of this section, if closures meet the 
requirements of paragraph (e)(2)(iii) of this section.
    (ii) Kettles with a total capacity of 2650 L (700 gallons) or more 
and a ratio of track-width to fully loaded CG height of 2.5 or more are 
excepted from the ``substantially leak tight'' requirements of paragraph 
(g)(2) of this section and the rollover protection requirements of 
paragraph (g)(6) of this section if closures meet the requirements of 
paragraph (e)(2)(iii) of this section.
    (iii) Closures must be securely closed during transportation. 
Closures also must be designed to prevent opening and the expulsion of 
lading in a rollover accident.
    (f) Other bulk packagings: Bulk packagings, other than those 
specified in paragraphs (a) through (e) of this section, which are used 
for the transport of elevated temperature materials, must conform to all 
requirements of paragraph (g) of this section on or after October 1, 
1993.
    (g) General requirements. Bulk packagings authorized or used for 
transport of elevated temperature materials must conform to the 
following requirements:
    (1) Pressure and vacuum control equipment. When pressure or vacuum 
control equipment is required on a packaging authorized in this section, 
such equipment must be of a self-reclosing design, must prevent package 
rupture or collapse due to pressure, must prevent significant release of 
lading due to packaging overturn or splashing or surging

[[Page 512]]

during normal transport conditions, and may be external to the 
packaging.
    (i) Pressure control equipment is not required if pressure in the 
packaging would increase less than 10 percent as a result of heating the 
lading from the lowest design operating temperature to a temperature 
likely to be encountered if the packaging were engulfed in a fire. When 
pressure control equipment is required, it must prevent rupture of the 
packaging from heating, including fire engulfment.
    (ii) Vacuum control equipment is not required if the packaging is 
designed to withstand an external pressure of 100 kPa (14.5 psig) or if 
pressure in the packaging would decrease less than 10 percent as a 
result of the lading cooling from the highest design operating 
temperature to the lowest temperature incurred in transport. When vacuum 
control equipment is required, it must prevent collapse of the packaging 
from a cooling-induced pressure differential.
    (iii) When the regulations require a reclosing pressure relief 
device, the lading must not render the devices inoperable (i.e. from 
clogging, freezing, or fouling). If the lading affects the proper 
operation of the device, the packaging must have:
    (A) A safety relief device incorporating a frangible disc or a 
permanent opening, each having a maximum effective area of 22 cm\2\ (3.4 
in.\2\), for transportation by highway;
    (B) For transportation of asphalt by highway, a safety relief device 
incorporating a frangible disc or a permanent opening, each having a 
maximum effective area of 48 cm \2\ (7.4 in \2\); or
    (C) For transportation by rail, a safety relief device incorporating 
a frangible disc, meeting the requirements of Sec. 179.15 of this 
subchapter.
    (iv) Reclosing pressure relief devices, frangible discs or permanent 
openings must not allow the release of lading during normal 
transportation conditions (i.e., due to splashing or surging).
    (2) Closures. All openings, except permanent vent openings 
authorized in paragraph (g)(1)(iii) of this section, must be securely 
closed during transportation. Packagings must be substantially leak-
tight so as not to allow any more than dripping or trickling of a non-
continuous flow when overturned. Closures must be designed and 
constructed to withstand, without exceeding the yield strength of the 
packaging, twice the static loading produced by the lading in any 
packaging orientation and at all operating temperatures.
    (3) Strength. Each packaging must be designed and constructed to 
withstand, without exceeding the yield strength of the packaging, twice 
the static loading produced by the lading in any orientation and at all 
operating temperatures.
    (4) Compatibility. The packaging and lading must be compatible over 
the entire operating temperature range.
    (5) Markings. In addition to any other markings required by this 
subchapter, each packaging must be durably marked in a place readily 
accessible for inspection in characters at least 4.8 mm (3/16 inch) with 
the manufacturer's name, date of manufacture, design temperature range, 
and maximum product weight (or ``load limit'' for tank cars) or 
volumetric capacity.
    (6) Accident damage protection. For transportation by highway, 
external loading and unloading valves and closures must be protected 
from impact damage resulting from collision or overturn. Spraying 
equipment and the road oil application portion of a packaging are 
excepted from this requirement.
    (7) New construction. Specification packagings that are being 
manufactured for the transport of elevated temperature materials must be 
authorized for current construction.
    (h) Exceptions.
    (1) General. Packagings manufactured for elevated temperature 
materials service prior to October 1, 1993, which are not in full 
compliance with the requirements in paragraph (g) of this section, may 
continue in service if they meet the applicable requirements of subparts 
A and B of this part and meet the closure requirements in paragraph 
(g)(2) of this section by March 30, 1995.
    (2) Kettles. Kettles in service prior to October 1, 1993, which are 
used to transport asphalt or bitumen, are excepted from specific 
provisions of this section as follows:
    (i) Kettles with a total capacity of less than 2650 L (700 gallons), 
which are

[[Page 513]]

not in full compliance with the requirements of paragraph (g) of this 
section, may continue in elevated temperature material service if they 
meet the applicable requirements of subparts A and B of this part and 
if, after March 30, 1995, closures are secured during transport to 
resist opening in an overturn.
    (ii) Kettles with a total capacity of 2650 L (700 gallons) or more, 
which are not in full compliance with the requirements of paragraph (g) 
of this section, may continue in elevated temperature material service 
if they meet the applicable requirements of subparts A and B of this 
part and if, after March 30, 1995, closures are secured during transport 
to resist opening in an overturn and no opening exceeds 46 cm\2\ (7.1 
in\2\).
    (3) Molten metals and molten glass. This section does not apply to 
packagings used for transportation of molten metals and molten glass by 
rail when movement is restricted to operating speeds less than 15 miles 
per hour. (See Sec. 172.203(g)(3) of this subchapter for shipping paper 
requirements.)
    (4) Solid elevated temperature materials. A material which meets the 
definition of a solid elevated temperature material is excepted from all 
requirements of this subchapter except Sec. 172.325 of this subchapter.
[Amdt. 173-227, 58 FR 3349, Jan. 8, 1993, as amended by Amdt. 173-234, 
58 FR 51532, Oct. 1, 1993; 173-237, 59 FR 28493, June 2, 1994; 62 FR 
51560, Oct. 1, 1997]



Sec. 173.249  Bromine.

    When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of part 173 of this subchapter and the special provisions specified in 
Column 7 of the Sec. 172.101 Table.
    (a) Class DOT 105A300W or 105A500W tank cars. Class 105A500W tank 
cars may be equipped with manway cover plates, pressure relief valves, 
vent valves, and loading/unloading valves that are required on Class 
105A-300W tank cars. Tank cars must conform with paragraphs (d) through 
(f) of this section.
    (b) Specification MC 310, MC 311, MC 312 or DOT 412 cargo tank motor 
vehicles conforming with paragraphs (d) through (f) of this section. The 
total quantity in one tank may not be less than 88 percent nor more than 
96 percent of the volume of the tank. Cargo tanks in bromine service 
built prior to August 31, 1991 may continue in service under the 
requirements contained in Sec. 173.252(a)(4) of this part in effect on 
September 30, 1991.
    (c) Specification IM 101 portable tanks conforming with paragraphs 
(d) through (f) of this section. The total quantity in one tank may not 
be less than 88 percent nor more than 92 percent of the volume of the 
tank.
    (d) The tank must be made from nickel-clad or lead-lined steel 
plate. Nickel cladding or lead lining must be on the inside of the tank. 
Nickel cladding must comprise at least 20 percent of the required 
minimum total thickness. Nickel cladding must conform to ASTM 
Specification B162-69. Lead lining must be at least 4.763 mm (0.188 
inch) thick. All tank equipment and appurtenances in contact with the 
lading must be lined or made from metal not subject to deterioration by 
contact with lading.
    (e) Maximum filling density is 300 percent of the tank's water 
capacity. Minimum filling density is 287 percent of the tank's water 
capacity. Maximum water capacity is 9,253 kg (20,400 pounds) for DOT 
105A300W tank cars. Maximum quantity of lading in DOT 105A300W tank cars 
is 27,216 kg (60,000 pounds). Maximum water capacity is 16,964 kg 
(37,400 pounds) for DOT 105A500W tank cars and DOT 105A500W tank cars 
equipped as described in paragraph (a) of this section. Maximum quantity 
of lading in DOT 105A500W tank cars is 49,895 kg (110,000 pounds).
    (f) Tank shell and head thickness for cargo tank motor vehicles and 
portable tanks must be at least 9.5 mm (0.375 inch) excluding lead 
lining.
[Amdt. 173-224, 55 FR 52663, Dec. 21, 1990, as amended at 56 FR 66275, 
Dec. 20, 1991]

[[Page 514]]



               Subpart G--Gases; Preparation and Packaging



Sec. 173.300  [Reserved]



Sec. 173.300a  Approval of independent inspection agency.

    (a) Any person who (1) does not manufacture cylinders for use in the 
transportation of hazardous materials and (2) is not directly or 
indirectly controlled by any person or firm which manufactures cylinders 
for use in the transportation of hazardous materials, may apply to the 
Department of Transportation for approval as an independent inspection 
agency for the purpose of performing cylinder inspections and 
verifications required by part 178 of this subchapter.
    (b) Each application filed under this section for approval as an 
independent inspection agency must:
    (1) Be submitted in writing to: Associate Administrator for 
Hazardous Materials Safety, U.S. Department of Transportation, 
Washington, DC 20590-0001;
    (2) State the name, address, principal business activity, and 
telephone number of the applicant and the name and address of each 
facility where tests and inspections are to be performed;
    (3) State the name, address and principal business activity of each 
person having any direct or indirect ownership interest in the applicant 
greater than three percent and of each subsidiary or division of the 
applicant;
    (4) If the applicant is not a permanent resident of the United 
States, include a designation of a permanent resident of the United 
States as his agent for service of process in accordance with Sec. 107.7 
of this title;
    (5) Set forth a detailed description of the inspection and testing 
facilities to be used by the applicant and the applicant's capability to 
perform the inspections and verify the tests required by part 178 of 
this subchapter;
    (6) Identify by name each individual whom the applicant proposes to 
employ as an inspector responsible for certifying inspection and test 
results and a statement of that person's qualifications; and
    (7) Specify the identification or qualification number assigned to 
each inspector who is supervised by a certifying inspector identified in 
Sec. 173.300a(b)(6).
    (c) Upon the request of the Associate Administrator for Hazardous 
Materials Safety the applicant shall allow the Associate Administrator 
or his or her representative to inspect the applicant's inspection and 
testing facilities. In the case of inspection and testing facilities 
located outside the United States, the applicant shall bear the cost of 
the inspection.
    (d) If, on the basis of information submitted in the application and 
his own investigation, the Associate Administrator for Hazardous 
Materials Safety finds that the applicant is qualified to perform the 
inspections and verifications required by part 178 of this subchapter 
for cylinders to be used in the transportation of hazardous materials, 
he issues an approval subject to such terms and conditions as he 
considers necessary. After approval, the Associate Administrator for 
Hazardous Materials Safety, may authorize, upon request, the independent 
inspection agency to perform other inspections and functions for which 
the Associate Administrator for Hazardous Materials Safety, finds the 
applicant to be qualified. Such additional authorizations will be noted 
on each inspector's approval documents.
    (e) The Associate Administrator for Hazardous Materials Safety will 
issue an approval as an independent inspection agency for the purpose of 
performing inspections and verifications within the United States to any 
competent and disinterested inspector of cylinders so designated by the 
Bureau of Explosives before May 1, 1976, who submits a copy of that 
designation by July 15, 1976, together with the name, the assigned 
identification or qualification number, and a statement of the 
qualifications of each person employed as an inspector under that 
designation to: Associate Administrator for Hazardous Materials Safety, 
U.S. Department of Transportation, Washington, DC 20590-0001.
    (f) Notwithstanding any requirement of this subchapter to the 
contrary, between May 30, 1976, and August 15, 1976, inspections and 
verifications required by part 178 of this subchapter may be

[[Page 515]]

performed within the United States by any competent and disinterested 
inspector so designated by the Bureau of Explosives prior to May 1, 
1976.
    (g) An approval issued under this section is not transferable and is 
effective until surrendered or withdrawn or otherwise terminated by the 
Associate Administrator for Hazardous Materials Safety.
    (h) The holder of an approval issued under this section shall notify 
the Associate Administrator for Hazardous Materials Safety within 20 
days after the date there is any change in the information submitted in 
the application for the approval.
    (i) Upon the request of the Associate Administrator for Hazardous 
Materials Safety the holder of an approval issued under this section 
shall allow the Director to inspect the holder's inspection and testing 
facilities and shall make available for inspection the holder's records 
pertaining to inspections and verifications required by part 178 of this 
subchapter. In the case of inspection and testing facilities located 
outside the United States and records made available for inspection 
outside the United States, the holder shall bear the costs of 
inspection.
[Amdt. 173-97, 41 FR 18414, May 4, 1976, as amended by Amdt. 173-142, 45 
FR 81572, Dec. 11, 1980; Amdt. 173-158, 47 FR 43065, Sept. 30, 1982; 
Amdt. 173-194 50 FR 46056, Nov. 6, 1985; Amdt. 173-223, 55 FR 39981, 
Oct. 1, 1990; Amdt. 173-224, 56 FR 66279, Dec. 20, 1991; Amdt. 173-256, 
61 FR 51338, Oct. 1, 1996]



Sec. 173.300b  Approval of non-domestic chemical analyses and tests.

    (a) Any person who manufactures cylinders outside the United States 
may apply to the Department for approval to have the chemical analyses 
and tests of those cylinders required by part 178 of this subchapter 
performed outside the United States for the purpose of qualifying them 
for use in the transportation of hazardous materials to, from or within 
the United States.
    (b) Each application filed under this section for approval to 
perform chemical analyses and tests of cylinders outside the United 
States must:
    (1) Be submitted in writing to: Associate Administrator for 
Hazardous Materials Safety, U.S. Department of Transportation, 
Washington, DC 20590-0001;
    (2) State the name, address, and telephone number of the applicant 
and the name, address and a description of each facility at which 
cylinders are to be manufactured and chemical analyses and tests are to 
be performed;
    (3) If the applicant is not a resident of the United States, include 
a designation of a permanent resident of the United States as his agent 
for service of process in accordance with Sec. 107.7 of this title;
    (4) Set forth complete details concerning the dimension, materials 
of construction, wall thickness, water capacity, shape, type of joints, 
location and size of openings and other pertinent physical 
characteristics of each specification cylinder for which approval is 
being requested, including calculations for cylinder wall stress and 
wall thickness which may be shown on a drawing or on separate sheets 
attached to a descriptive drawing. If units of weights and measures are 
expressed in the metric system, they must also be stated in the English 
system equivalents; and
    (5) Identify the independent inspection agency to be used.
    (c) Upon the request of the Associate Administrator for Hazardous 
Materials Safety the applicant shall allow the Director to inspect the 
applicant's cylinder manufacturing and testing facilities and shall 
provide such materials and cylinders for analyses and tests as the 
Director may specify. The applicant shall bear the cost of the 
inspections, analyses, and tests.
    (d) If, on the basis of the information submitted in the application 
and his own investigation, the Associate Administrator for Hazardous 
Materials Safety finds that the applicant has the proper manufacturing 
equipment and facilities and is otherwise capable of insuring the proper 
performance of the chemical analyses and tests required by part 178 of 
this subchapter for cylinders to be used in the transportation of 
hazardous materials, he issues an approval, subject to such terms and 
conditions as he considers necessary.
    (e) An approval issued under this section is not transferable and is 
effective

[[Page 516]]

until surrendered or withdrawn or otherwise terminated by the Associate 
Administrator for Hazardous Materials Safety.
    (f) The holder of an approval issued under this section shall notify 
the Associate Administrator for Hazardous Materials Safety within 20 
days after the date there is any change in the information submitted in 
the application for the approval.
    (g) Upon the request of the Associate Administrator for Hazardous 
Materials Safety the holder of an approval issued under this section 
shall allow the Director to inspect the holder's cylinder manufacturing 
and testing facilities, any cylinder manufactured under that approval, 
the holder's inspection and test records, and technical data files 
pertaining to any cylinder manufactured under that approval. In the case 
of facilities located outside the United States, or cylinders, records 
or files made available for inspection outside the United States, the 
holder shall bear the costs of inspection.
[Amdt. 173-97, 41 FR 18415, May 4, 1976, as amended by Amdt. 173-142, 45 
FR 81572, Dec. 11, 1980; Amdt. 173-158, 47 FR 43065, Sept. 30, 1982; 
Amdt. 173-223, 55 FR 39981, Oct. 1, 1990; Amdt. 173-224, 56 FR 66279, 
Dec. 20, 1991]



Sec. 173.300c  Termination of approval.

    (a) The Associate Administrator for Hazardous Materials Safety may 
terminate an approval issued under Sec. 173.300a or Sec. 173.300b of 
this subpart if he determines:
    (1) That information upon which approval was based is fraudulent or 
substantially erroneous;
    (2) That the holder has not complied with subchapter C of this 
chapter;
    (3) That, in the case of an independent inspection agency, the 
agency or an employee thereof is or appears to be controlled or 
improperly influenced by cylinder manufacturing interests;
    (4) That the holder is subject to an outstanding final judgment of a 
Federal court which concerns the enforcement of subchapter C of this 
chapter and which has not been satisfied within a reasonable period of 
time; or
    (5) That continuation of the approval is not consistent with the 
requirements of transportation safety.
    (b) The Associate Administrator for Hazardous Materials Safety, 
before he terminates an approval issued under Sec. 173.300a or 
Sec. 173.300b of this subpart, notifies the holder in writing of the 
reasons therefor and provides the holder an opportunity to show why the 
approval should not be terminated.
[Amdt. 173-97, 41 FR 18415, May 4, 1976, as amended by Amdt. 173-142, 45 
FR 81572, Dec. 11, 1980; Amdt. 173-224, 56 FR 66279, Dec. 20, 1991]



Sec. 173.301  General requirements for shipment of compressed gases in cylinders and spherical pressure vessels.

    (a) Gases capable of combining chemically. A cylinder charged with 
compressed gas must not contain gases or materials that are capable of 
combining chemically with each other or with the cylinder material so as 
to endanger its serviceability. See Sec. 173.34(e)(17) regarding the 
requalification of a cylinder that previously contained a corrosive 
liquid.
    (b) Ownership of container. A container charged with a compressed 
gas must not be shipped unless it was charged by or with the consent of 
the owner of the container.
    (c) Retest of container. A container for which prescribed periodic 
retest has become due must not be charged and shipped until such retest 
has been properly made.
    (d) Manifolding containers in transportation. No means of 
interconnecting such as manifolding of individual containers may be 
employed for the transportation of compressed gases, except as 
hereinafter authorized. Containers so manifolded shall be supported and 
held together as a unit by structurally adequate means. Safety relief 
devices on manifolded horizontal containers charged with flammable 
compressed gas shall be arranged to discharge upward and unobstructed to 
the open air in such a manner as to prevent any impingement of escaping 
gas upon the containers.
    (1) Manifolding is authorized for containers of the following gases: 
argon, air, carbon dioxide, helium, neon, nitrogen, nitrous oxide, 
oxygen or sulfur hexafluoride provided that each container is 
individually equipped with

[[Page 517]]

pressure relief devices as required by Sec. 173.34(d) or 
Sec. 173.315(i).
    (2) Manifolding is authorized for specification cylinders containing 
the following nonliquefied gases: boron trifluoride, carbon monoxide, 
ethylene, hydrogen, hydrocarbon gases, methane, nitrogen trifluoride, 
and tetrafluoroethylene, inhibited, except that aluminum cylinders are 
not authorized for boron trifluoride or nitrogen trifluoride service. 
Individual cylinders must be equipped with approved pressure relief 
devices as required by Sec. 173.34(d) or Sec. 173.315(i) of this part. 
Each cylinder must be equipped with an individual shutoff valve that 
must be tightly closed while in transit. Manifold branch lines of these 
individual shutoff valves must be sufficiently flexible to prevent 
damage to the valves which otherwise might result from the use of rigid 
branch lines. A temperature measuring device may be inserted in one 
cylinder of a manifold installation in place of the shutoff valve.
    (3) Manifolding is authorized for specification cylinders containing 
the following gases: 1,1-Difluoroethylene, ethane, ethylene, hydrogen 
chloride, liquefied hydrocarbon gas, liquefied petroleum gas and 
propylene, except that aluminum cylinders are not authorized for 
hydrogen chloride service, provided each cylinder is equipped with 
approved pressure relief devices as required by Sec. 173.34(d) or 
Sec. 173.315(i) of this part: and provided further, that each cylinder 
is equipped with an individual shutoff valve that must be tightly closed 
while in transit. Each cylinder must be separately charged and means 
must be provided to insure that no interchange of cylinder contents can 
occur during transportation. Manifold branch lines to these individual 
shutoff valves must be sufficiently flexible to prevent injury to the 
valves which otherwise might result from the use of rigid branch lines.
    (4) Manifolding is authorized for containers of acetylene, provided 
that each container is individually equipped with approved safety relief 
devices as required by Sec. 173.34(d): And further provided, That each 
container is equipped with an individual shutoff valve, or valves, which 
shall be tightly closed while in transit. Manifold branch lines to these 
individual shutoff valves shall be sufficiently flexible to prevent 
injury to the valves which otherwise might result from the use of rigid 
branch lines. All manifold containers shall be transported in a vertical 
position. For the checking of tare weights or for replacement of solvent 
the container shall be removed from the manifold. This requirement is 
not intended to prohibit the charging of the acetylene cylinders while 
manifolded.
    (5) Manifolding is authorized for cargo tanks of the following gas 
provided individual cargo tanks are equipped with the safety relief 
valves and gaging devices, as required by Sec. 173.315(h) and (i): And 
further provided, That each cargo tank is equipped with individual 
valve, or valves, which shall be tightly closed while in transit and 
that each such container must be separately charged: Anhydrous ammonia.
    (e) Container pressure. The pressure in the container at 70 deg. F. 
must not exceed the service pressure for which the container is marked 
or designated, except as provided in Sec. 173.302(c).

    Note 1: In certain cases with liquefied gases the pressure at 
70 deg. F. must be lower than the marked service pressure to avoid 
having a greater pressure at a temperature of 130 deg. F. than is 
permitted.

    (1) For authorized containers not marked with a service pressure, 
the service pressure is designated as follows:

                                                                        
------------------------------------------------------------------------
                                                              Service   
                  Specification marking                   pressure--psig
------------------------------------------------------------------------
DOT 3...................................................         1,800  
  3E....................................................         1,800  
  4.....................................................           300  
  8.....................................................           250  
  9.....................................................           200  
  25....................................................           300  
  33....................................................           480  
  38....................................................           250  
  40....................................................           200  
  41....................................................           240  
------------------------------------------------------------------------

    (2) For containers made prior to the effective date of 
specifications, the service pressure is designated as the same as for 
the same type of container made in accordance with current 
specifications.
    (f) Container pressure at 130 deg. F. The pressure in the container 
at 130 deg. F.

[[Page 518]]

shall not exceed 5/4 times the service pressure, except:
    (1) Containers charged with acetylene, liquefied nitrous oxide and 
liquefied carbon dioxide.
    (2) When a cylinder is charged in accordance with Sec. 173.302(c), 
the pressure in the cylinder at 130 deg. F. must not exceed 5/4 times 
the filling pressure authorized therein.
    (g) Container valve protection. Containers charged with flammable, 
corrosive, or noxious gases, must have their valves protected by one of 
the following methods:
    (1) By equipping the containers with securely attached metal caps of 
sufficient strength to protect the valves from injury during transit.
    (2) By boxing or crating the containers so as to give proper 
protection to the valves.
    (3) By so constructing the containers that the valve is recessed 
into the container or otherwise protected so that it will not be 
subjected to a blow when the container is dropped on a flat surface.
    (4) By loading the containers compactly in an upright position and 
securely bracing in cars or motor vehicles, when loaded by the consignor 
and to be unloaded by the consignee.
    (5) By equipping with valves strong enough to avoid damage during 
transit for containers containing non-liquefied gas under pressure not 
exceeding 300 psi at 70 deg. F.
    (h) Compressed gas containers. Compressed gases must be in metal 
containers built in accordance with the DOT specifications, as shown 
below, in effect at the time of manufacture, and marked as required by 
the specification and the regulation for retesting if applicable;

                                                   Packagings                                                   
                                                                                                                
                                                                                                                
DOT-2P...............................  DOT-3D.................  DOT-4BW................  DOT-8AL.               
    2Q...............................      3E.................      4B240ET............      9.\1\              
ICC-3 \1\............................      3HT................      4C.................  1CC-25.\1\             
DOT-3A...............................  DOT-3T.................      4D.................      26.\1\             
DOT- 3AL.............................                                                                           
DOT-3AX..............................      4..................      4DA................      33.\1\             
    3A480X...........................      4A.................      4DS................      38.\1\             
    3AA..............................      4AA................      4E.................  DOT-39.                
DOT-3AAX.............................      4B.................      4L.................      40.\1\             
    3B...............................      4B240FLW...........      5..................      41.\1\             
    3BN..............................      4B240X \1\.........      5F.................                         
    3C...............................      4BA................      8..................                         
----------------------------------------------------------------------------------------------------------------
\1\ Use of existing cylinders authorized, but new construction not authorized.                                  

    (i) Foreign cylinders in domestic use. Except as provided in 
paragraph (j) of this section, a charged cylinder manufactured outside 
the United States may not be offered for transportation to, from, or 
within the United States unless it has been manufactured, inspected, and 
tested in accordance with the applicable DOT specification set forth in 
part 178 of this subchapter.
    (j) Charging of foreign cylinders for export. (1) A cylinder 
manufactured outside the United States that has not been manufactured, 
inspected, tested and marked in accordance with part 178 of this 
subchapter may be charged with compressed gas in the United States, and 
shipped solely for export if it meets the following requirements, in 
addition to other requirements of the subchapter:
    (i) It has been inspected, tested and marked (with only the month 
and year of retest) in conformance with the procedures and requirements 
of Sec. 173.34(e) or the Associate Administrator for Hazardous Materials 
Safety has authorized the charging company to fill foreign cylinders 
under an alternative method of qualification; and
    (ii) It meets the maximum filling density and service pressure 
requirements of this part.
    (2) The bill of lading or other shipping paper must identify the 
cylinder and carry the following certification: ``This cylinder has 
[These cylinders

[[Page 519]]

have] been retested and refilled in accordance with DOT requirements for 
export.''
    (k) Outside packagings. Specification 2P, 2Q, 3E, 3HT, 4BA spherical 
type, 4D, 4DA, 4DS, 91, 39, 401, and 
411 must be shipped in strong outside packagings, except that 
the 4BA spherical type may be securely mounted on pallets to provide 
protection for the spheres and any attachments.
---------------------------------------------------------------------------

    \1\ Use of existing cylinders authorized, but new construction not 
authorized.
---------------------------------------------------------------------------

    (1) Outside packaging must provide protection for the cylinder. 
Unless the cylinder has a protective collar or neck ring, the outside 
packaging must provide protection to the valve against accidental 
functioning and damage.
    (l) Specifications 3AX, 3AAX, and 3T cylinders are authorized for 
transportation only when horizontally mounted on a motor vehicle or in 
an ISO framework or other framework of equivalent structural integrity. 
Cylinders may be transported in COFC or TOFC service only under 
conditions approved by the Associate Administrator for Safety, Federal 
Railroad Administration. Cylinder valves and safety devices must be 
protected as follows:
    (1) Each cylinder must be fixed at one end of the vehicle or 
framework with provision for thermal expansion at the opposite end 
attachment.
    (2) The valve and safety relief device protective structure must be 
sufficiently strong to withstand a force equal to twice the weight 
involved with a safety factor of four, based on the ultimate strength of 
the material used; and
    (3) Each discharge for a safety relief device on a cylinder 
containing a flammable gas must be upward and unobstructed.
[29 FR 18743, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.301, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.302  Charging of cylinders with non-liquefied compressed gases.

    (a) Detailed requirements. Nonliquefied compressed gases (except gas 
in solution) for which charging requirements are not definitely 
prescribed in Sec. 173.304(a)(2) must be shipped, subject to 
Sec. 173.301, and Sec. 173.305 in specification containers as follows:
    (1) Specification 3,1 3A, 3AA, 3B, 3C,1 
3D,1 3E, 4,1 4A,1 4B, 4BA, 4BW, 
4C,1 25,1 26,1 33,1 or 
38,1 (Secs. 178.36, 178.37, 178.38, 178.42, 178.50, 178.51, 
178.61 of this subchapter). See Secs. 173.34 and 173.301(e).
---------------------------------------------------------------------------

    \1\ Use of existing cylinders authorized, but new construction not 
authorized.

    Note 1: Authorized cylinders containing oxygen which is continuously 
fed to tanks containing live fish may be shipped irrespective of the 
---------------------------------------------------------------------------
provisions of Sec. 173.24.

    (2) Specification 3HT (Sec. 178.44 of this subchapter) cylinders for 
aircraft use only, having a maximum service life of 24 years. Authorized 
only for nonflammable gases. Cylinders must be equipped with safety 
relief devices only of the frangible disc type which meet the 
requirements of Sec. 173.34(d). Each frangible disc must have a rated 
bursting pressure which does not exceed 90 percent of the minimum 
required test pressure of the cylinder. Discs with fusible metal backing 
are not permitted. Spec. 3HT cylinders may be shipped only when packed 
in strong outside packagings.
    (3) Specification 3AX, 3AAX, or 3T (Secs. 178.36, 178.37, 178,45 of 
this subchapter) cylinders are authorized only for the following 
nonliquefied gases: Air, argon, boron trifluoride, carbon monoxide, 
ethane, ethylene, helium, hydrogen, methane, neon, nitrogen, or oxygen, 
except that specification 3T is not authorized for hydrogen. As used in 
this paragraph methane is a nonliquefied gas which has a minimum purity 
of 98.0 percent methane and which is commerically free of corroding 
components.
    (4) Specification 39 (Sec. 178.65 of this subchapter) cylinder. For 
flammable gases, internal volume may not exceed 75 cubic inches. 
Aluminum cylinders are authorized for oxygen only under the following 
conditions:
    (i) Cylinder threads must be straight threads;
    (ii) Cylinder must be equipped only with brass or stainless steel 
valve; and
    (iii) Each cylinder must be cleaned in compliance with the 
requirements of Federal Specification RR-C-901c, dated

[[Page 520]]

January 15, 1981, paragraphs 3.7.2 and 3.8.2. Cleaning agents equivalent 
to those specified in RR-C-901c, may be used; however any cleaning agent 
must not be capable of reacting with oxygen. One cylinder selected at 
random from a group of 200 or less cleaned at the same time, must be 
tested for oil contamination in accordance with specification RR-C-901c, 
paragraph 4.4.2.3 and meet the standard of cleanliness specified.
    (5) Specification 3AL (Sec. 178.46 of this subchapter) cylinders are 
authorized only for the following nonliquefied gases: air, argon, carbon 
monoxide, diborane, ethylene, helium, mercury free hydrogen, krypton, 
methane, nitrogen, neon, oxygen and xenon. Flammable gases shipped in 
3AL cylinders are authorized only when transported by highway, rail and 
cargo-only aircraft. When used in oxygen service, aluminum cylinders 
must be in compliance with the following conditions:
    (i) Cylinder must be equipped only with brass or stainless steel 
valve;
    (ii) Cylinder must have only straight threads in the opening;
    (iii) Each cylinder must be cleaned in compliance with the 
requirements of Federal Specification RR-C-901c, dated August 1, 1967, 
paragraphs 3.7.2, and 3.8.2. Cleaning agents equivalent to those 
specified in RR-C-901c may be used; however, any cleaning agent must not 
be capable of reacting with oxygen. One cylinder selected at random from 
a group of 200 or less, cleaned at the same time, must be tested for oil 
contamination in accordance with Specification RR-C-901c, paragraph 
4.4.2.3, and meet the standard of cleanliness specified; and
    (iv) The pressure in the cylinder may not exceed 3,000 psig at 
70 deg. F.
    (b) Filling limits. (See Sec. 173.301(e).)
    (c) Special filling limits for Specifications 3A, 3AX, 3AA, 3AAX, 
and 3T cylinders. Specifications 3A, 3AX, 3AA, 3AAX, and 3T 
(Secs. 178.36, 178.37, 178.45 of this subchapter) cylinders may be 
charged with compressed gases, other than liquefied, dissolved, 
poisonous, or flammable gases to a pressure 10 percent in excess of 
their marked service pressure, provided:
    (1) That such cylinders are equipped with frangible disc safety 
relief devices (without fusible metal backing) having a bursting 
pressure not exceeding the minimum prescribed test pressure.
    (2) That the elastic expansion shall have been determined at the 
time of the last test or retest by the water jacket method.
    (3) That either the average wall stress or the maximum wall stress 
does not exceed the wall stress limitation shown in the following table 
(see Notes 1, 2 and 3):

                                                                        
------------------------------------------------------------------------
                                                    Average     Maximum 
                                                     wall        wall   
                  Type of steel                     stress      stress  
                                                  limitation  limitation
------------------------------------------------------------------------
Plain carbon steels over 0.35 carbon and medium                         
 manganese steels...............................      53,000      58,000
Steels of analysis and heat-treatment specified                         
 in spec. 3AA...................................      67,000      73,000
Steel of analysis and heat treatment specified                          
 in Spec. DOT-3T................................      87,000      94,000
Plain carbon steels less than 0.35 carbon made                          
 prior to 1920..................................      45,000      48,000
------------------------------------------------------------------------


    Note 1: The average wall stress shall be computed from the elastic 
expansion data using the following formula:

                            S=1.7EE/KV--0.4P

where:

S=wall stress, pounds per square inch;
EE=elastic expansion (total less permanent) in cubic centimeters;
K=factor x 10-7 , experimentally determined for the 
particular type of cylinder being tested, or derived in accordance with 
CGA Pamphlet C-5;
V= internal volume in cubic centimeter (1 cubic inch=16.387 cubic 
centimeters);
P= test pressure, pounds per square inch.

Formula derived from formula of Note 2 and the following:

         EE=(PKVD 2)/(D 2-d 2)

    Note 2: The maximum wall stress shall be computed from the formula:

     S=(P(1.3D 2+0.4d 2))/ (D 2-d 
                              2)

where:

S= wall stress, pounds per square inch;
P= test pressure, pounds per square inch;
D= outside diameter, inches;
d=D-2t, where t= minimum wall thickness determined by a suitable method

    Note 3: Compliance with average wall stress limitation may be 
determined through computation of the elastic expansion rejection limit 
in accordance with CGA Pamphlet C-5 or through the use of the 
manufacturer's marked elastic expansion rejection limit (REE) on the 
cylinder.


[[Page 521]]


    (4) That an external and internal visual examination made at the 
time of test or retest shows the cylinder to be free from excessive 
corrosion, pitting, or dangerous defects.
    (5) That a plus sign (+) be added following the test date marking on 
the cylinder to indicate compliance with paragraphs (c) (2), (3), and 
(4) of this section.
    (d) Fluorine. Fluorine must be shipped in Specification 3A1000, 
3AA1000, or 3BN400 (Sec. 178.36, Sec. 178.37 or Sec. 178.39 of this 
subchapter) cylinders without safety relief device and equipped with 
valve protection cap. Such containers must not be charged to over 400 
p.s.i.g. at 70 deg. F. and must not contain over 6 pounds of gas.
    (e) Verification of container pressure. (1) Each day, the pressure 
in a container representative of that day's compression must be checked 
by the charging plant after the container has cooled to a settled 
temperature and a record of this test kept for at least 30 days.
    (f) Carbon monoxide. Carbon monoxide must be shipped in a 
Specification 3A, 3AX, 3AA, 3AAX, 3AL, 3, 3E, or 3T, (Secs. 178.36, 
178.37, 178.46, 178.42, 178.45 of this subchapter) cylinder having a 
minimum service pressure of 1,800 psig. The pressure in the cylinder 
must not exceed 1000 psig at 70 deg. F. except that if the gas is dry 
and sulfur free, the cylinder may be charged to five-sixths of the 
cylinder service pressure or 2000 psig, whichever is the lesser. 
Specification 3AL cylinders are authorized only when transported by 
highway, rail and cargo-only aircraft.
    (g) Diborane and diborane mixtures. Diborane and diborane mixed with 
compatible compressed gas in Specification 3AA1800 (Sec. 178.37 of this 
subchapter), cylinders. The maximum filling density of the diborane 
shall not exceed 7 percent. Diborane mixed with compatible compressed 
gas must not have a pressure exceeding the service pressure of the 
cylinder if complete decomposition of the diborane occurs. Cylinder 
valves must be protected either by metal caps or by over packing 
cylinder in strong wooden boxes.
    (h) Poisonous mixtures. Cylinders containing poison gases and poison 
gas mixtures meeting Division 2.3 Hazard Zone A must conform to the 
requirements of Sec. 173.40 of this part.
[29 FR 18743, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.302, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.303  Charging of cylinders with compressed gas in solution (acetylene).

    (a) Cylinder, filler and solvent requirements. (Refer to applicable 
parts of Specification 8 and 8AL). Acetylene gas must be shipped in 
Specification 8 or 8AL (Sec. 178.59 or Sec. 178.60 of this subchapter) 
cylinders. The cylinders shall consist of metal shells filled with a 
porous material, and this material must be charged with a suitable 
solvent. The cylinders containing the porous material and solvent, shall 
be tested with satisfactory results in accordance with CGA Pamphlet C-
12. Representative samples of cylinders charged with acetylene shall be 
tested with satisfactory results in accordance with CGA Pamphlet C-12.
    (1) The specific gravity of acetone solvent in acetylene cylinders 
must be 0.796 or over at 15.5 deg. C. (59.9 deg. F.).
    (2) The amount of solvent added in the refilling operation must not 
cause the tare weight of the cylinder to exceed its marked tare weight. 
The tare weight includes the weight of the cylinder shell, porous 
filling, valve, safety relief devices and solvent, but without removable 
cap.
    (b) Filling limits. The pressure in cylinders containing acetylene 
gas must not exceed 250 psi at 70 deg. F., and in case the cylinders are 
marked for a lower allowable charging pressure, at 70 deg. F., then that 
pressure must not be exceeded.
    (c) Data requirements on filler and solvent. Cylinders containing 
acetylene gas must not be shipped unless they were charged by or with 
the consent of the owner, and by a person, firm, or company having 
possession of complete information as to the nature of the porous 
filling, the kind and quantity of solvent in the cylinders, and the 
meaning of such markings on the cylinders as are prescribed by the 
Department's regulations and specifications applying

[[Page 522]]

to containers for the transportation of acetylene gas.
    (d) Verification of container pressure. (1) Each day, the pressure 
in a container representative of that day's compression must be checked 
by the charging plant after the container has cooled to a settled 
temperature and a record of this test kept for at least 30 days.
    (e) Prefill requirements. Before each filling of an acetylene 
cylinder, the person filling the cylinder must visually inspect the 
outside of the cylinder in accordance with the prefill requirements 
contained in CGA Pamphlet C-13, Section 3.
[29 FR 18743, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.303, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.304  Charging of cylinders with liquefied compressed gas.

    (a) Detailed charging requirements. Liquefied gases shall be charged 
in accordance with the specific provisions of paragraph (a)(2) of this 
section or paragraph (e) of this section. Where charging requirements 
are not specifically prescribed, liquefied gases, except gas in 
solution, must be shipped, subject to the applicable paragraphs under 
General Requirements for Shipment (see Sec. 173.301), the charging 
requirements of this section for liquefied compressed gas, or the 
charging requirements for mixtures (see Sec. 173.305), in containers 
manufactured under specifications, as follows:
    (1) Specification 3,1 3A, 3AA, 3B, 3BN, 3D1 
3E, 4,1 4A,1 4B, 4BA, 4B240ET, 4BW, 4E, 
9,1 25,1 26,1 38,1 39, 
40,1 or 41,1 (Secs. 178.36, 178.37, 178.38, 
178.39, 178.42, 178.50, 178.51, 178.55, 178.61, 178.65, 178.68 of this 
subchapter), except that no Specification 4E, 9, 39, 40, 41 packaging 
may be charged and shipped with a mixture containing a pyroforic liquid, 
carbon bisulfide (disulfide), ethyl chloride, ethylene oxide, nickel 
carbonyl, spirits of nitroglycerin, or poisonous material (Division 6.1 
or 2.3), unless specifically authorized in this part.
---------------------------------------------------------------------------

    \1\ Use of existing cylinders authorized, but new construction not 
authorized.
---------------------------------------------------------------------------

    (2) The following requirements must be complied with for the gases 
named (for cryogenic liquids, see Sec. 173.316):

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                                                           Containers marked as shown in this   
                                                                         column or of the same type with higher 
                                            Maximum permitted filling    service pressure must be used except as
               Kind of gas                 density (percent) (see Note   provided in Sec.  173.34 (a), (b), Sec.
                                                        1)               173.301(j) (see notes following table) 
                                                                                                                
----------------------------------------------------------------------------------------------------------------
Anhydrous ammonia........................  54.........................  DOT-4; DOT-3A480; DOT-3AA480; DOT-      
                                                                         3A480X; DOT-4A480; DOT-3; DOT-4AA480;  
                                                                         DOT-3E1800; DOT-3AL480.                
Bromotri- fluoro- methane (R-13B1 or H-    124........................  DOT-3A400; DOT-3AA400; DOT-3B400; DOT-  
 1301).                                                                  4A400; DOT-4AA480; DOT-4B400; DOT-     
                                                                         4BA400; DOT-4BW400; DOT-3E1800; DOT-39;
                                                                         DOT-3AL400.                            
Carbon dioxide (see notes 4, 7, and 8)...  68.........................  DOT-3A1800; DOT-3AX1800; DOT-3AA1800;   
                                                                         DOT-3AAX1800; DOT-3; DOT-3E1800; DOT-  
                                                                         3T1800; DOT-3HT2000; DOT-39; DOT-      
                                                                         3AL1800.                               
Carbon dioxide, refrigerated liquid (see   ...........................  DOT-4L.                                 
 paragraph (h)).                                                                                                
Chlorine (see Note 2)....................  125........................  DOT-3A480; DOT-3AA480; DOT-25; DOT-3;   
                                                                         DOT-3BN480; DOT-3E1800.                
Chlorodifluroethane (R-142b) or 1-chloro-  100........................  DOT-3A150; DOT-3AA150; DOT-3B150; DOT-  
 1, 1-difluoroethane (see Note 8).                                       4B150; DOT-4BA225; DOT-4BW225; DOT-    
                                                                         3E1800; DOT-39, DOT-3AL150.            
Chlorodifluoromethane (R-22) (see Note 8)  105........................  DOT-3A240; DOT-3AA240; DOT-3B240; DOT-  
                                                                         4B240; DOT-4BA240; DOT-4BW240; DOT-    
                                                                         4B240ET; DOT-4E240; DOT-39; DOT-41; DOT-
                                                                         3E1800; and DOT-3ALA240.               
Chloropentafluorethane, (R-115)..........  110........................  DOT-3A225; DOT-3AA225; DOT-3B225; DOT-  
                                                                         4A225; DOT-4BA225; DOT-4B225; DOT-     
                                                                         4BW225; DOT-3E1800; DOT-39; and DOT-   
                                                                         3AL225.                                
Chlorotrifluoromethane (R-13) (see Note    100........................  DOT-3A1800; DOT-3AA1800; DOT-3; DOT-    
 8).                                                                     3E1800; DOT-39; and DOT-3AL1800.       

[[Page 523]]

                                                                                                                
Cyclopropane (see Notes 8 and 9).........  55.........................  DOT-3A225; DOT-3A480X; DOT-3AA225; DOT- 
                                                                         3B225; DOT-4A225; DOT-4AA480; DOT-     
                                                                         4B225; DOT-4BA225; DOT-4BW225; DOT-    
                                                                         4B240ET; DOT-3; DOT-3E1800; DOT-39; and
                                                                         DOT-3AL225.                            
Dichlorodifluoromethane (R-12) (see Note   119........................  DOT-3A225; DOT-3AA225; DOT-3B225; DOT-  
 8).                                                                     4A225; DOT-4B225; DOT-4BA225; DOT-     
                                                                         4BW225; DOT-4B240ET; DOT-4E225; DOT-9; 
                                                                         DOT-39; DOT-41; DOT-3E1800; and DOT-   
                                                                         3AL225.                                
Dichlorodifluoromethane and                Not liquid full at 130 deg.  DOT-3A240; DOT-3AA240, DOT-3B240; DOT-  
 difluoroethane mixture (constant boiling   F..                          3E1800; DOT-4A240; DOT-4B240; DOT-     
 mixture) (R-500) (see Note 8).                                          4BA240; DOT-4BW240; DOT-4E240; DOT-9,  
                                                                         DOT-39.                                
Difluoroethane (R-152a) (see Note 8).....  79.........................  DOT-3A150; DOT-3AA150; DOT-3B150; DOT-  
                                                                         4B150; DOT-4BA225; DOT-4BW225; DOT-    
                                                                         3E1800; DOT-3AL150.                    
1,1-Difluoroethylene (R-1132A)...........  73.........................  DOT-3A2200, DOT-3AA2200, DOT-3AX2200,   
                                                                         DOT-3AAX2200, DOT-3T2200, DOT-39.      
Dimethylamine, anhydrous.................  59.........................  DOT-3A150; DOT-3AA150; DOT-3B150; DOT-  
                                                                         4B150 DOT-4BA225; DOT-4BW225; ICC-     
                                                                         3E1800.                                
Ethane (see Notes 8 and 9)...............  35.8.......................  DOT-3A1800; DOT-3AX1800; DOT-3AA1800;   
                                                                         DOT-3AAX1800; DOT-3; DOT-3E1800; DOT-  
                                                                         3T1800; DOT-39; DOT-3AL1800.           
Ethane (see Notes 8 and 9)...............  36.8.......................  DOT-3A2000; DOT-3AX2000; DOT-3AA2000;   
                                                                         DOT-3AAX2000; DOT-3T2000; DOT-39; DOT- 
                                                                         3AL2000.                               
Ethylene (see Notes 8 and 9).............  31.0.......................  DOT-3A1800; DOT-3AX1800 DOT-3AA1800; DOT-
                                                                         3AAX1800; DOT-3; DOT-3E1800; DOT-      
                                                                         3T1800; DOT-39; and DOT-3AL1800 .      
Ethylene (see Notes 8 and 9).............  32.5.......................  DOT-3A2000; DOT-3AX2000; DOT-3AA2000;   
                                                                         DOT-3AAX2000; DOT-3T2000; DOT-39; and  
                                                                         DOT-3AL2000.                           
Ethylene (see Notes 8 and 9).............  35.5.......................  DOT-3A2400; DOT-3AX2400; DOT-3AA2400;   
                                                                         DOT-3AAX2400; DOT-3T2400; DOT-39; DOT- 
                                                                         3AL2400.                               
Hydrogen chloride........................  65.........................  DOT-3A1800; DOT-3AA1800; DOT-3AX1800;   
                                                                         DOT-3AAX1800; DOT-3; DOT-3T1800; DOT-  
                                                                         3E1800.                                
Hydrogen sulfide (see Note 10)...........  62.5.......................  DOT-3A480; DOT-3AA480; DOT-3B480; DOT-  
                                                                         4A480; DOT-4B480; DOT-4BA480; DOT-     
                                                                         4BW480.; DOT-26-480; DOT-3E1800; DOT-  
                                                                         3AL480.                                
Insecticide, liquefied gas (See Notes 8    Not liquid full at 130       DOT-3A300; DOT-3AA300; DOT-3B300; DOT-  
 and 12).                                   deg.F.                       4B300; DOT-4BA300; DOT-4BW300; DOT-9;  
                                                                         DOT-40; DOT-41; DOT-3E1800.            
Liquefied nonflammable gases, liquid       Not liquid full at 130 deg.  Specification packaging authorized in   
 other than those classified as             F.                           paragraph (a)(1) of this section and   
 flammable, corrosive, or poisonous, and                                 DOT-3HT; DOT-4D; DOT-4DA; DOT-4DS.     
 mixtures or solutions thereof, charged                                                                         
 with nitrogen, carbon dioxide, or air                                                                          
 (see Notes 7 and 8).                                                                                           
Methylacetylene-propadiene, stabilized     Not liquid full at 130 deg.  DOT-4B240 without brazed seams; DOT-    
 (see Note 5).                              F.                           4BA240 without brazed seams; DOT-3A240;
                                                                         DOT-3AA240; DOT-3B240; DOT-3E1800; DOT-
                                                                         4BW240; DOT-4E240; DOT-4B240ET; DOT-4; 
                                                                         DOT-41; DOT-3AL240.                    
Methyl chloride..........................  84.........................  DOT-3A225; DOT-3AA225; DOT-3B225; DOT-  
                                                                         4A225; DOT-4B225; DOT-4BA225; DOT-     
                                                                         4BW225; DOT-3; DOT-4; DOT-25; DOT-26-  
                                                                         300; DOT-38; DOT-3E1800; DOT-4B240ET.  
                                                                         Cylinders complying with DOT-3A150; DOT-
                                                                         3B150; DOT-4A150, and DOT-4B150        
                                                                         manufactured prior to Dec. 7, 1936 are 
                                                                         also authorized.                       
Methyl mercaptan.........................  80.........................  DOT-3A240; DOT-3AA240; DOT-3B240; DOT-  
                                                                         4B240; DOT-4B240ET; DOT-3E1800; DOT-   
                                                                         4BA240; DOT-4BW240.                    
Monomethylamine, anhydrous...............  60.........................  DOT-3A150; DOT-3AA150; DOT-3B150; DOT-  
                                                                         4B150; DOT-4BA225; DOT-4BW225; DOT-    
                                                                         3E1800.                                
Nitrosyl chloride........................  110........................  DOT-3BN400 only.                        
Nitrous oxide (see Notes 7, 8, and 11)...  68.........................  DOT-3A1800; DOT-3AX1800; DOT-3AA1800;   
                                                                         DOT-3AAX1800; DOT-3; DOT-3E1800; DOT-  
                                                                         3T1800; DOT-3HT2000; DOT-39; DOT-      
                                                                         .AL1800.                               
Nitrous oxide, refrigerated liquid (see    ...........................  DOT-4L.                                 
 paragraph (h)).                                                                                                
Refrigerant gas, n.o.s. or Dispersant      Not liquid full at 130       DOT-3A240; DOT-3AA240; DOT-3B240; DOT-  
 gas, n.o.s. (see Notes 8 and 13).          deg.F.                       3E1800; DOT-4A240; DOT-4B240; DOT-     
                                                                         4BA240; DOT-4BW240; DOT-4E240; DOT-9;  
                                                                         DOT-39; and DOT-3AL240.                

[[Page 524]]

                                                                                                                
Sulfur dioxide (see note 8)..............  125........................  DOT-3A225; DOT-3AA225; DOT-3B225; DOT-  
                                                                         4A225; DOT-4B225; DOT-4BA225; DOT-     
                                                                         4BW225; DOT-4B240ET; DOT-3; DOT-4; DOT-
                                                                         25; DOT-26-150; DOT-38; DOT-39; DOT-   
                                                                         3E1800; and DOT-3AL225.                
Sulfur hexafluoride......................  120........................  DOT-3A1000; DOT-3AA1000; DOT-3AAX2400;  
                                                                         DOT-3; DOT-3AL1000; DOT-3E1800; DOT-   
                                                                         3T1800.                                
Sulfuryl fluoride........................  106........................  DOT-3A480; DOT-3AA480; DOT-3E1800; DOT- 
                                                                         4B480; DOT-4BA480; DOT-4BW480.         
Tetrafluoroethylene, inhibited...........  90.........................  DOT-3A1200; DOT-3AA1200; DOT-3E1800.    
Trifluorochloroethylene..................  115........................  DOT-3A300; DOT-3AA300; DOT-3B300; DOT-  
                                                                         4A300; DOT-4B300; DOT-4BA300; DOT-     
                                                                         4BW300; DOT-3E1800.                    
Trimethylamine, anhydrous................  57.........................  DOT-3A150; DOT-3AA150; DOT-3B150; DOT-  
                                                                         4B150; DOT-4BA225; DOT-4BW225; DOT-    
                                                                         3E1800.                                
Vinyl chloride (see Note 5)..............  84.........................  DOT-4B150 without brazed seams; DOT-    
                                                                         4BA225 without brazed seams; DOT-      
                                                                         4BW225; DOT-3A150; DOT-3AA150; DOT-25; 
                                                                         DOT-3E1800; DOT-3AL150.                
Vinyl fluoride, inhibited................  62.........................  DOT-3A1800; DOT-3AA1800; DOT-3E1800; DOT-
                                                                         3AL1800.                               
Vinyl methyl ether (see Note 5)..........  68.........................  DOT-4B150, without brazed seams; DOT-   
                                                                         4BA225 without brazed seams; DOT-      
                                                                         4BW225; DOT-3A150; DOT-3AA150; DOT-    
                                                                         3B150; DOT-25; DOT-3E1800.             
----------------------------------------------------------------------------------------------------------------
Note 1: The ``filling density'' is hereby defined as the percent ratio of the weight of gas in a container to   
  the weight of water that the container will hold at 60  deg.F. (1 lb of water=27.737 cubic inches at 60       
  deg.F.).                                                                                                      
Note 2: Cylinders purchased after Oct. 1, 1944, for the transportation of chlorine must contain no aperture     
  other than that provided in the neck of the cylinder for attachment of a valve equipped with an approved      
  safety relief device. Cylinders purchased after Nov. 1, 1935, and charged with chlorine must not contain over 
  150 pounds of gas.                                                                                            
Note 3: [Reserved]                                                                                              
Note 4: Special carbon dioxide mining devices containing a heating element and charged with not over 6 pounds of
  carbon dioxide may be filled to a density of not over 85 percent, provided the cylinder is made of steel with 
  a calculated bursting pressure in excess of 39,000 psi, be fitted with a frangible disc that will operate at  
  not over 57 percent of that pressure, and be able to withstand a drop of 10 feet when striking crosswise on a 
  steel rail while under a pressure of at least 3,000 psi. Such devices must be shipped in strong boxes or must 
  be wrapped in heavy burlap and bound by 12-gauge wire with the wire completely covered by friction tape.      
  Wrapping must be applied so as not to interfere with the functioning of the frangible disc safety relief      
  device. Shipments must be described as ``liquefied carbon dioxide gas (mining device)'' and marked, labeled,  
  and certified as prescribed for liquefied carbon dioxide.                                                     
Note 5: All parts of valve and safety relief devices in contact with contents of cylinders must be of a metal or
  other material, suitably treated if necessary, which will not cause formation of any acetylides.              
Note 6: [Reserved]                                                                                              
Note 7: Specification 3HT cylinders for aircraft use only, having a maximum service life of 24 years. Authorized
  only for nonflammable gases. Cylinders must be equipped with pressure relief devices only of the frangible    
  disc type which meet the requirements of Sec.  173.34(d). Each frangible disc must have a rated bursting      
  pressure which does not exceed 90 percent of the minimum required test pressure of the cylinder. Discs with   
  fusible metal backing are not permitted. Cylinders may be shipped only when packed in strong outside          
  packagings.                                                                                                   
Note 8: See Sec.  173.301(k).                                                                                   
Note 9: When used for shipment of flammable gases, the internal volume of a specification 39 cylinder must not  
  exceed 75 cubic inches.                                                                                       
Note 10: Each valve outlet must be sealed by a threaded cap or a threaded solid plug.                           
Note 11: See Sec.  173.304(a)(4).                                                                               
Note 12: For an insecticide gas which is nonpoisonous and nonflammable, see Sec.  173.305(c).                   
Note 13: For a refrigerant or dispersant gas which is nonpoisonous and nonflammable, see Sec.  173.304(e).      

    (3) Specification 3AL (Sec. 178.46 of this subchapter) cylinders are 
authorized for the following liquefied gases: cyclobutane, hydrogen 
selenide, propylene, silane, carbonyl sulfide, vinyl bromide, and 
dimethyl ether. Shipments of flammable gases are authorized only when 
transported by highway, rail and cargo aircraft only.
    (4) Specification DOT 3AL (Sec. 178.46 of this subchapter) cylinders 
when used in nitrous oxide service must be in compliance with the 
following conditions:
    (i) Cylinder must be equipped only with brass or stainless steel 
valve; and
    (ii) Each cylinder must be cleaned in compliance with the 
requirements of Federal Specification RR-C-901c paragraphs 3.7.2 and 
3.8.2. Cleaning agents equivalent to those specified in RR-C-901c may be 
used; however, any cleaning agent must not be capable of reacting with 
oxygen. One cylinder selected at random from a group of 200 or less 
cleaned at the same time must be tested for oil contamination in 
accordance with Specification RR-C-901c paragraph 4.4.2.3 and meet the 
standard of cleanliness specified.
    (b) Filling limits. Except for carbon dioxide, 1,1-Difluoroethylene 
(R-1132A), nitrous oxide and vinyl fluoride, inhibited, the liquid 
portion of a liquefied

[[Page 525]]

gas must not completely fill the packaging at any temperature up to and 
including 130 deg.F. The liquid portion of vinyl fluoride, inhibited, 
may completely fill the cylinder at 130 deg.F. provided the pressure at 
the critical temperature does not exceed one and one-fourth times the 
service pressure.
    (c) Verification of content in cylinder. (1) Liquefied gases must be 
charged by weight, by volume measurement of liquid, charging line, by 
the use of proper scales or when lower in pressure than required for 
liquefaction a pressure-temperature chart may be used in charging to 
insure that the service pressure at 70 deg. F. times 5/4 will not be 
exceeded at 130 deg. F.
    (2) Except as noted in paragraph (d)(4) of this section, the amount 
of liquefied gas charged into a container must be determined by weight, 
or if charged at a pressure lower than the liquefaction point, by 
pressure shown on a chart for the specific gas. Weight must be checked, 
after disconnecting from the charging line, by the use of proper scales.
    (d) Requirements for liquefied petroleum gas. (1) Filling density 
limited as follows:

                                                                        
------------------------------------------------------------------------
                                                                Maximum 
                                                                filling 
                                                              density in
                                                              percent of
 Minimum specific gravity of the liquid material at 60 deg.   the water-
                             F.                                 weight  
                                                               capacity 
                                                                of the  
                                                               container
------------------------------------------------------------------------
0.271 to 0.289..............................................          26
0.290 to 0.306..............................................          27
0.307 to 0.322..............................................          28
0.323 to 0.338..............................................          29
0.339 to 0.354..............................................          30
0.355 to 0.371..............................................          31
0.372 to 0.398..............................................          32
0.399 to 0.425..............................................          33
0.426 to 0.440..............................................          34
0.441 to 0.452..............................................          35
0.453 to 0.462..............................................          36
0.463 to 0.472..............................................          37
0.473 to 0.480..............................................          38
0.481 to 0.488..............................................          39
0.489 to 0.495..............................................          40
0.496 to 0.503..............................................          41
0.504 to 0.510..............................................          42
0.511 to 0.519..............................................          43
0.520 to 0.527..............................................          44
0.528 to 0.536..............................................          45
0.537 to 0.544..............................................          46
0.545 to 0.552..............................................          47
0.553 to 0.560..............................................          48
0.561 to 0.568..............................................          49
0.569 to 0.576..............................................          50
0.577 to 0.584..............................................          51
0.585 to 0.592..............................................          52
0.593 to 0.600..............................................          53
0.601 to 0.608..............................................          54
0.609 to 0.617..............................................          55
0.618 to 0.626..............................................          56
0.627 to 0.634..............................................          57
------------------------------------------------------------------------

    (2) Subject to Sec. 173.301(f), any filling density percentage 
prescribed in this section is authorized to be increased by 2 for 
liquefied petroleum gas in Spec. 26 or 3 cylinders or in Spec. 3A marked 
for 1,800 psig, or higher, service pressure.
    (3) Liquefied petroleum gas must be shipped in specification 
containers as follows:
    (i) Specification 3, \1\ 3A, 3AA, 3B, 3E, 3AL, 4B, 4BA, 4B240FLW, 
4B240ET, 4BW, 4B240X,1 4E, 4,1 4A,1 
9,1 25,1 26,1 38,1 39, or 
411 (Secs. 178.36, 178.37, 178.38, 178.42, 178.46, 178.50, 
178.51, 178.54, 178.55, 178.61, 178.65, 178.68 of this subchapter) 
cylinders. The internal volume of a Specification 39 cylinder must not 
exceed 75 cubic inches. Shipments of flammable gases in 3AL cylinders 
are authorized only when transported by highway, rail and cargo-only 
aircraft.
---------------------------------------------------------------------------

    \1\ Use of existing cylinders authorized, but new construction not 
authorized.

    Note 1: Cylinders marked as complying with DOT Spec. 4B240FLW 
bearing manufacturer's symbol WCO and serial numbers 47A-1 to 47A-59200, 
inclusive, varying from the specification requirements as to physical 
properties of steel, are authorized for the transportation of liquefied 
---------------------------------------------------------------------------
petroleum gases.

    (ii) Additional containers may be used within the limits of quantity 
and pressure as follows:

[[Page 526]]



                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                                     Maximum capacity                                           
                                         ---------------------------------------   Maximum charging pressure--  
            Type of container               Cubic                                            p.s.i.g.           
                                           inches             Gallons                                           
----------------------------------------------------------------------------------------------------------------
DOT-2P or DOT-2Q (see Note 1)...........     31.83  ...........................  45 p.s.i.g. at 70 deg. F. and  
                                                                                  105 p.s.i.g. at 130 deg. F.   
                                                                                  (see Note 2).                 
DOT-2P or DOT-2Q (see Note 1)...........     31.83  ...........................  35 p.s.i.g. at 70 deg. F. and  
                                                                                  100 p.s.i.g. at 130 deg. F.   
DOT-3C or DOT-4C........................     3,881  16+5% tolerance............  145 p.s.i.g. at 130 deg. F.    
----------------------------------------------------------------------------------------------------------------


    Note 1: Containers must be packed in strong wooden or fiber boxes of 
such design as to protect valves from injury or accidental functioning 
under conditions incident to transportation. Each completed container 
filled for shipment must have been heated until contents reached a 
minimum temperature of 130 deg. F., without evidence of leakage, 
distortion, or other defect. Each outside shipping container must be 
plainly marked ``INSIDE CONTAINERS COMPLY WITH PRESCRIBED 
SPECIFICATIONS.''
    Note 2: Containers must be equipped with safety relief devices which 
will prevent rupture of the containers and dangerous projection of the 
closing devices when the containers are exposed to the action of fire.

    (4) Verification of content. Containers with a water capacity of 200 
pounds or more and for use with a liquefied petroleum gas with a 
specific gravity at 60 deg. F. of 0.504 or greater may have their 
contents determined by using a fixed length dip tube gauging device. The 
length of the dip tube shall be such that when a liquefied petroleum gas 
with a specific volume of 0.03051 cu. ft./lb. at a temperature of 
40 deg. F. is charged into the container it just reaches the bottom of 
the tube. The weight of this liquid shall not exceed 42 percent of the 
water capacity of the container which must be stamped thereon. The 
length of the dip tube, expressed in inches carried out to one decimal 
place and prefixed with the letters ``DT'' shall be stamped on the 
container and on the exterior of removable type dip tube; for the 
purpose of this requirement the marked length shall be expressed as the 
distance measured along the axis of a straight tube from the top of the 
boss through which the tube is inserted to the proper level of the 
liquid in the container. The length of each dip tube shall be checked 
when installed by weighing each container after filling except when 
installed in groups of substantially identical containers in which case 
one of each 25 containers shall be weighed. The quantity of liquefied 
gas in each container must be checked by means of the dip tube after 
disconnecting from the charging line. The outlet from the dip tube shall 
be not larger than a No. 54 drill size orifice. A container 
representative of each day's filling at each charging plant shall have 
its contents checked by weighing after disconnecting from the charging 
line.
    (e) Refrigerant gases. Refrigerant gases which are nonpoisonous and 
nonflammable under this part, must be shipped in cylinders as prescribed 
in paragraph (a) (1) or (2) of this section, or as follows:
    (1) Specifications 2P and 2Q (Secs. 178.33, 178.33a of this 
subchapter). Inside metal containers packed in a strong wooden or 
fiberboard box of such design as to protect valves from injury or 
accidental functioning under conditions incident to transportation. 
Pressure in the container must not exceed 85 pounds per square inch 
absolute at 70 deg. F. Each completed metal container filled for 
shipment must be heated until content reaches a minimum temperature of 
130 deg. F. without evidence of leakage, distortion, or other defect. 
Each outside shipping container must be plainly marked ``Inside 
Containers Comply With Prescribed Specification.''
    (f) Engine starting fluid. Engine starting fluid containing 
compressed gas or gases which are flammable under this part must be 
shipped in cylinders as prescribed in paragraph (a)(1) of this section, 
or as follows:
    (1) Inside nonrefillable metal containers having a capacity not over 
32 cubic inches. Containers must be packaged in strong, tight 
packagings. Pressure in the container must not exceed 140 psi, absolute, 
at 130 deg. F. However, if the pressure exceeds 140 psi, absolute at 
130 deg. F., a Spec. 2P (Sec. 178.33 of this subchapter) container must 
be used. In any event, the metal container

[[Page 527]]

must be capable of withstanding without bursting a pressure of one and 
one-half times the pressure of the content at 130 deg. F. The liquid 
content of the material and gas must not completely fill the container 
at 130 deg. F. Each completed container filled for shipment must have 
been heated until content reaches a minimum temperature of 130 deg. F., 
without evidence of leakage, distortion, or other defect. Each outside 
shipping container must be plainly marked, ``INSIDE CONTAINERS COMPLY 
WITH PRESCRIBED SPECIFICATIONS.''
    (g) Poisonous mixtures. Cylinders containing poison gases and poison 
gas mixtures meeting Division 2.3 Hazard Zone A must conform to the 
requirements of Sec. 173.40 of this part.
    (h) Carbon dioxide, refrigerated liquid or nitrous oxide, 
refrigerated liquid. (1) The following provisions apply to carbon 
dioxide, refrigerated liquid and nitrous oxide, refrigerated liquid:
    (i) DOT 4L cylinders conforming to the provisions of this paragraph 
are authorized.
    (ii) Each cylinder must be protected with at least one pressure 
relief valve and at least one frangible disc conforming to 
Secs. 173.34(d) and 173.304(a)(2). The relieving capacity of the 
pressure relief device system must be equal to or greater than that 
calculated by the applicable formula in paragraph 5.9 of CGA Pamphlet S-
1.1.
    (iii) The temperature and pressure of the gas at the time of loading 
may not exceed -18  deg.C (0  deg.F) and 2007 kPa (291 psig) for carbon 
dioxide and -15.6  deg.C (+4  deg.F) and 2007 kPa (291 psig) for nitrous 
oxide. Maximum time in transit may not exceed 120 hours.
    (2) The following pressure control valve settings, design service 
temperatures and filling densities apply:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
   Pressure control valve setting                Maximum permitted filling density (percent by weight)          
  maximum start--to discharge gauge  ---------------------------------------------------------------------------
       pressure in kPa (psig)          Carbon dioxide, refrigerated liquid   Nitrous oxide, refrigerated liquid 
----------------------------------------------------------------------------------------------------------------
724 kPa (105 psig)..................  108                                   104                                 
1172 kPa (170 psig).................  105                                   101                                 
1586 kPa (230 psig).................  104                                   99                                  
2034 kPa (295 psig).................  102                                   97                                  
2483 kPa (360 psig).................  100                                   95                                  
3103 kPa (450 psig).................  98                                    83                                  
3723 kPa (540 psig).................  92                                    87                                  
4309 kPa (625 psig).................  86                                    80                                  
----------------------------------------------------------------------------------------------------------------
Design service temperature  deg.C (   -196  deg.C (-320  deg.F)             -196  deg.C (-320  deg.F)           
 deg.F).                                                                                                        
----------------------------------------------------------------------------------------------------------------

[29 FR 18743, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.304, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.305  Charging of cylinders with a mixture of compressed gas and other material.

    (a) Detailed requirements. A mixture of a compressed gas and any 
other material must be shipped as a compressed gas if the mixture is a 
compressed gas as designated in Sec. 173.115 and when not in violation 
of Sec. 173.301(a).
    (b) Filling limits. (See Sec. 173.301(e).) For mixtures, the liquid 
portion of the liquefied compressed gas at 130 deg. F. plus any 
additional liquid or solid must not completely fill the container.
    (c) Nonpoisonous and nonflammable mixtures. Mixtures containing 
compressed gas or gases including insecticides, which mixtures are 
nonpoisonous and nonflammable under this part must be shipped in 
cylinders as prescribed in Sec. 173.304(a) or as follows:
    (1) Specification 2P (Sec. 178.33 of this subchapter). Inside metal 
containers equipped with safety relief devices of a type examined by the 
Bureau of Explosives and approved by the Associate Administrator for 
Hazardous Materials Safety, and packed in strong wooden or fiber boxes 
of such design as to protect valves from injury or accidental 
functioning under conditions incident to transportation. Pressure in the 
container may not exceed 85 psia at 70 deg.F. Each completed metal 
container filled

[[Page 528]]

for shipment must be heated until content reaches a minimum temperature 
of 130 deg.F., without evidence of leakage, distortion or other defect. 
Each outside shipping container must be plainly marked ``INSIDE 
CONTAINERS COMPLY WITH PRESCRIBED SPECIFICATIONS.''
    (d) Poisonous mixtures. A mixture containing any poisonous material 
(Division 6.1 or 2.3) in such proportions that the mixture would be 
classed as poisonous under Sec. 173.115 or Sec. 173.132 must be shipped 
in packagings as authorized for these poisonous materials.
[29 FR 18743, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 173-70, 38 FR 5309, Feb. 27, 1973, Amdt. 173-94, 41 
FR 16079, Apr. 15, 1976; 45 FR 32697, May 19, 1980; Amdt. 173-224, 56 FR 
66275, 66279, Dec. 20, 1991]



Sec. 173.306  Limited quantities of compressed gases.

    (a) Limited quantities of compressed gases for which exceptions are 
permitted as noted by reference to this section in Sec. 172.101 of this 
subchapter are excepted from labeling (except when offered for 
transportation by air) and, unless required as a condition of the 
exception, specification packaging requirements of this subchapter when 
packed in accordance with the following paragraphs. In addition, 
shipments are not subject to subpart F of part 172 of this subchapter, 
to part 174 of this subchapter except Sec. 174.24 and to part 177 of 
this subchapter except Sec. 177.817. Each package may not exceed 30 kg 
(66 pounds) gross weight.
    (1) When in containers of not more than 4 fluid ounces capacity 
(7.22 cubic inches or less) except cigarette lighters. Special 
exceptions for shipment of certain compressed gases in the ORM-D class 
are provided in paragraph (h) of this section.
    (2) When in metal containers filled with a material that is not 
classed as a hazardous material to not more than 90 percent of capacity 
at 70 deg. F. and then charged with nonflammable, nonliquefied gas. Each 
container must be tested to three times the pressure at 70 deg. F. and, 
when refilled, be retested to three times the pressure of the gas at 
70 deg. F. Also, one of the following conditions must be met:
    (i) Container is not over 1 quart capacity and charged to not more 
than 170 psig at 70 deg. F. and must be packed in a strong outside 
packaging, or
    (ii) Container is not over 30 gallons capacity and charged to not 
more than 75 psig at 70 deg. F.
    (3) When in a metal container for the sole purpose of expelling a 
nonpoisonous (other than a Division 6.1 Packing Group III material) 
liquid, paste or powder, provided all of the following conditions are 
met. Special exceptions for shipment of aerosols in the ORM-D class are 
provided in paragraph (h) of this section.
    (i) Capacity must not exceed one liter (61.0 cubic inches).
    (ii) Pressure in the container must not exceed 180 psig at 130 deg. 
F. If the pressure exceeds 140 psig at 130 deg. F., but does not exceed 
160 psig at 130 deg. F., a specification DOT 2P (Sec. 178.33 of this 
subchapter) inside metal container must be used; if the pressure exceeds 
160 psig at 130 deg. F., a specification DOT 2Q (Sec. 178.33a of this 
subchapter) inside metal container must be used. In any event, the metal 
container must be capable of withstanding without bursting a pressure of 
one and one-half times the equilibrium pressure of the content at 
130 deg. F.
    (iii) Liquid content of the material and gas must not completely 
fill the container at 130 deg. F.
    (iv) The container must be packed in strong outside packagings.
    (v) Each container must be subjected to a test performed in a hot 
water bath; the temperature of the bath and the duration of the test 
must be such that the internal pressure reaches that which would be 
reached at 55 deg.C (131 deg.F) (50 deg.C (122 deg.F) if the liquid 
phase does not exceed 95% of the capacity of the container at 50 deg.C 
(122 deg.F)). If the contents are sensitive to heat, the temperature of 
the bath must be set at between 20 deg.C (68 deg.F) and 30 deg.C 
(86 deg.F) but, in addition, one container in 2,000 must be tested at 
the higher temperature. No leakage or permanent deformation of a 
container may occur.
    (vi) Each outside packaging must be marked ``INSIDE CONTAINERS 
COMPLY WITH PRESCRIBED REGULATIONS.''

[[Page 529]]

    (4) Gas samples must be transported under the following conditions:
    (i) A gas sample may only be transported as non-pressurized gas when 
its pressure corresponding to ambient atmospheric pressure in the 
container is not more than 105 kPa absolute (15.22 psia).
    (ii) Non-pressurized gases, toxic (or toxic and flammable) must be 
packed in hermetically sealed glass or metal inner packagings of not 
more than one L (0.3 gallons) overpacked in a strong outer packaging.
    (iii) Non-pressurized gases, flammable must be packed in 
hermetically-sealed glass or metal inner packagings of not more than 2.5 
L (0.5 gallons) overpacked in a strong outer packaging.
    (b) Exemptions for foodstuffs, soap, biologicals, electronic tubes, 
and audible fire alarm systems. Limited quantities of compressed gases, 
(except poisonous gases as defined by Sec. 173.115(a)(3) of this part) 
for which exceptions are provided as indicated by reference to this 
section in Sec. 172.101 of this subchapter, when in accordance with one 
of the following paragraphs are excepted from labeling (except when 
offered for transportation by air) and the specification packaging 
requirements of this subchapter. In addition, shipments are not subject 
to subpart F of part 172 of this subchapter, to part 174 of this 
subchapter except Sec. 174.24 and to part 177 of this subchapter, except 
Sec. 177.817. Special exceptions for shipment of certain compressed 
gases in the ORM-D class are provided in paragraph (h) of this section.
    (1) Foodstuffs or soaps in a nonrefillable metal container not 
exceeding one liter (61.0 cubic inches), with soluble or emulsified 
compressed gas, provided the pressure in the container does not exceed 
140 p.s.i.g. at 130 deg. F. The metal container must be capable of 
withstanding without bursting a pressure of one and one-half times the 
equilibrium pressure of the content at 130 deg. F.
    (i) Containers must be packed in strong outside packagings.
    (ii) Liquid content of the material and the gas must not completely 
fill the container at 130 deg. F.
    (iii) Each outside packaging must be marked ``INSIDE CONTAINERS 
COMPLY WITH PRESCRIBED REGULATIONS.''
    (2) Cream in refillable metal receptacles with soluble or emulsified 
compressed gas. Containers must be of such design that they will hold 
pressure without permanent deformation up to 375 psig and must be 
equipped with a device designed so as to release pressure without 
bursting of the container or dangerous projection of its parts at higher 
pressures. This exception applies to shipments offered for 
transportation by refrigerated motor vehicles only.
    (3) Nonrefillable metal containers charged with a Division 6.1 
Packing Group III or nonflammable solution containing biological 
products or a medical preparation which could be deteriorated by heat, 
and compressed gas or gases. The capacity of each container may not 
exceed 35 cubic inches (19.3 fluid ounces). The pressure in the 
container may not exceed 140 psig at 130 deg. F., and the liquid content 
of the product and gas must not completely fill the containers at 
130 deg. F. One completed container out of each lot of 500 or less, 
filled for shipment, must be heated, until the pressure in the container 
is equivalent to equilibrium pressure of the content at 130 deg. F. 
There must be no evidence of leakage, distortion, or other defect. 
Container must be packed in strong outside packagings.
    (4) Electronic tubes, each having a volume of not more than 30 cubic 
inches and charged with gas to a pressure of not more than 35 psig and 
packed in strong outside packagings.
    (5) Audible fire alarm systems powered by a compressed gas contained 
in an inside metal container when shipped under the following 
conditions:
    (i) Each inside container must have contents which are not 
flammable, poisonous, or corrosive as defined under this part,
    (ii) Each inside container may not have a capacity exceeding 35 
cubic inches (19.3 fluid ounces),
    (iii) Each inside container may not have a pressure exceeding 70 
psig at 70 deg. F. and the liquid portion of the gas may not completely 
fill the inside container at 130 deg. F., and

[[Page 530]]

    (iv) Each nonrefillable inside container must be designed and 
fabricated with a burst pressure of not less than four times its charged 
pressure at 130 deg. F. Each refillable inside container must be 
designed and fabricated with a burst pressure of not less than five 
times its charged pressure at 130 deg. F.
    (c)  [Reserved]
    (d) Truck bodies or trailers on flat cars; automobiles, motorcycles, 
tractors, or other self-propelled vehicles. (1) Except as specified in 
Sec. 173.21, truck bodies or trailers with automatic heating or 
refrigerating equipment of the gas burning type may be shipped with 
tanks containing fuel and equipment operating or not operating, when 
used for the transportation of other freight and loaded on flat cars as 
part of a joint rail-highway movement. The heating or refrigerating 
equipment is considered to be a part of the truck body or trailer and is 
not subject to any other requirements of this subchapter.
    (2) Automobiles, motorcycles, tractors, or other self-propelled 
vehicles equipped with liquefied petroleum gas or other compressed gas 
fuel tanks, provided such tanks are securely closed, are not subject to 
any other requirements for transportation by rail or highway. For 
transportation by water, see Secs. 176.905 and 176.78(k) of this 
subchapter. For transportation by air, the fuel tank must be removed or 
emptied and securely closed.
    (3) A cylinder which is a component part of a passenger restraint 
system and is installed in a motor vehicle, charged with nonliquefied, 
nonflammable compressed gas and having no more than two actuating 
cartridges per valve, is excepted from the requirements of parts 170-189 
of this subchapter except:
    (i) Unless otherwise authorized by the Department, each cylinder 
must be in compliance with one of the cylinder specifications in part 
178 of this subchapter and authorized for use in Sec. 173.302 for the 
gas it contains;
    (ii) Each cylinder must be in compliance with the filling 
requirements of Sec. 173.301; and
    (iii) Each actuating cartridge must be approved in accordance with 
Sec. 173.56.
    (4) A cylinder which is part of a tire inflator system in a motor 
vehicle, charged with a nonliquefied, nonflammable compressed gas is 
excepted from the requirements of parts 170-189 of this subchapter 
except:
    (i) Unless otherwise authorized by the Department, each cylinder 
must be in compliance with one of the cylinder specifications in part 
178 and authorized for use in Sec. 173.302 for the gas it contains;
    (ii) Each cylinder must be in compliance with the filling 
requirements of Sec. 173.301.
    (iii) Each cylinder must be securely installed in the trunk of the 
motor vehicle and the valve must be protected against accidental 
discharge.

    Note: A cylinder containing a gas generator may be included within 
the provisions of this exception if the requirements of Sec. 173.34(d) 
are satisfied.

    (e) Refrigerating machines. (1) New (unused) refrigerating machines 
or components thereof are excepted from the specification packaging 
requirements of this part if they meet the following conditions. In 
addition, shipments are not subject to subpart F of part 172 of this 
subchapter, to part 174 of this subchapter except Sec. 174.24 and to 
part 177 of this subchapter except Sec. 177.817.
    (i) Each pressure vessel may not contain more than 5,000 pounds of 
Group A1 refrigerant as classified in ANSI/ASHRAE Standard 15 or not 
more than 50 pounds of refrigerant other than Group A1.
    (ii) Machines or components having two or more charged vessels may 
not contain an aggregate of more than 2,000 pounds of Group I 
refrigerant or more than 100 pounds of refrigerant other than Group I.
    (iii) Each pressure vessel must be equipped with a safety device 
meeting the requirements of ANSI/ASHRAE 15.
    (iv) Each pressure vessel must be equipped with a shut-off valve at 
each opening except openings used for safety devices and with no other 
connection. These valves must be closed prior to and during 
transportation.
    (v) Pressure vessels must be manufactured, inspected and tested in 
accordance with ANSI/ASHRAE 15, or when over 6 inches internal diameter, 
in accordance with the ASME Code.

[[Page 531]]

    (vi) All parts subject to refrigerant pressure during shipment must 
be tested in accordance with ANSI/ASHRAE 15.
    (vii) The liquid portion of the refrigerant, if any, may not 
completely fill any pressure vessel at 130 deg. F.
    (viii) The amount of refrigerant, if liquefied, may not exceed the 
filling density prescribed in Sec. 173.304.
    (f) Accumulators. The following applies to accumulators, which are 
hydraulic accumulators containing nonliquefied, nonflammable gas, and 
nonflammable liquids or pneumatic accumulators containing nonliquefied, 
nonflammable gas, fabricated from materials which will not fragment upon 
rupture.
    (1) Accumulators installed in motor vehicles, construction 
equipment, and assembled machinery and designed and fabricated with a 
burst pressure of not less than five times their charged pressure at 
70 deg. F., when shipped, are not subject to the requirements of this 
subchapter.
    (2) Accumulators charged with limited quantities of compressed gas 
to not more than 200 p.s.i.g. at 70 deg. F. are excepted from labeling 
(except when offered for transportation by air) and the specification 
packaging requirements of this subchapter when shipped under the 
following conditions. In addition, shipments are not subject to subpart 
F of part 172 of this subchapter, to part 174 of this subchapter except 
Sec. 174.24 and to part 177 of this subchapter except Sec. 177.817.
    (i) Each accumulator must be shipped as an inside packaging,
    (ii) Each accumulator may not have a gas space exceeding 2,500 cubic 
inches under stored pressure, and
    (iii) Each accumulator must be tested, without evidence of failure 
or damage, to at least three times its charged pressure of 70 deg. F., 
but not less than 120 p.s.i. before initial shipment and before each 
refilling and reshipment.
    (3) Accumulators with a charging pressure exceeding 200 p.s.i.g. at 
70 deg. F. are excepted from labeling (except when offered for 
transportation by air) and the specification packaging requirements of 
this subchapter when shipped under the following conditions:
    (i) Each accumulator must be in compliance with the requirements 
stated in paragraph (f)(2), (i), (ii), and (iii) of this section, and
    (ii) Each accumulator must be designed and fabricated with a burst 
pressure of not less than five times its charged pressure at 70 deg. F. 
when shipped.
    (g) Water pump system tank. Water pump system tanks charged with 
compressed air or limited quantities of nitrogen to not over 40 psig for 
single-trip shipment to installation sites are excepted from labeling 
(transportation by air not authorized) and the specification packaging 
requirements of this subchapter when shipped under the following 
conditions. In addition, shipments are not subject to subpart F of this 
subchapter, to part 174 of this subchapter except Sec. 174.24 and part 
177 except Sec. 177.817.
    (1) The tank must be of steel, welded with heads concave to 
pressure, having a rated water capacity not exceeding 120 gallons and 
with outside diameter not exceeding 24 inches. Safety relief devices not 
required.
    (2) The tank must be pneumatically tested to 100 psig. Test pressure 
must be permanently marked on the tank.
    (3) The stress at prescribed pressure must not exceed 20,000 psi 
using formula:

S=Pd/2t

where:

S=wall stress in pounds per square inch:
P=prescribed pressure for the tank of at least 3 times charged pressure 
          at 70 deg. F or 100 psig, whichever is greater;
d=inside diameter in inches;
t=minimum wall thickness, in inches.

    (4) The burst pressure must be at least 6 times the charge pressure 
at 70 deg. F.
    (5) Each tank must be overpacked in a strong outside container in 
accordance with Sec. 173.301(k).
    (h) A limited quantity which conforms to the provisions of paragraph 
(a)(1), (a)(3), or (b) of this section and is a ``consumer commodity'' 
as defined in Sec. 171.8 of this subchapter, may be renamed ``consumer 
commodity'' and reclassed as ORM-D material. Each package may not exceed 
30 kg (66 pounds)

[[Page 532]]

gross weight. In addition to the exceptions provided by paragraphs (a) 
and (b) of this section--
    (1) Outside packagings are not required to be marked ``INSIDE 
CONTAINERS COMPLY WITH PRESCRIBED REGULATIONS'';
    (2) Shipments of ORM-D materials are not subject to the shipping 
paper requirements of subpart C of part 172 of this subchapter, unless 
the material meets the definition of a hazardous substance or hazardous 
waste or unless offered for transportation or transported by aircraft; 
and
    (3) Shipments of ORM-D materials are eligible for the exceptions 
provided in Sec. 173.156.
    (i) An aerosol is flammable if a positive test result is obtained 
using any of the following test methods:
    (1) Using the Bureau of Explosives' Flame Projection Apparatus, the 
flame projects more than 18 inches beyond the ignition source with valve 
opened fully, or the flame flashes back and burns at the valve with any 
degree of valve opening.
    (2) Using the Bureau of Explosives' Open Drum Apparatus, there is 
any significant propagation of flame away from the ignition source.
    (3) Using the Bureau of Explosives' Closed Drum Apparatus, there is 
any explosion of the vapor-air mixture in the drum.
[Amdt. 173-94, 41 FR 16079, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.306, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.307  Exceptions for compressed gases.

    (a) The following materials are not subject to the requirements of 
this subchapter:
    (1) Carbonated beverages.
    (2) Except as provided in Sec. 175.10(a)(2) of this subchapter, 
tires when inflated to pressures not greater than their rated inflation 
pressures.
    (3) Balls used for sports.
    (4) Refrigerating machines including dehumidifiers and air 
conditioners, and components thereof such as precharged tubing 
containing 25 pounds or less of nonflammable liquefied gas.
    (b) [Reserved]
[Amdt. 173-94, 41 FR 16081, Apr. 15, 1976, as amended by Amdt. 173-135, 
45 FR 13090, Feb. 28, 1980]



Sec. 173.308  Cigarette lighter or other similar device charged with fuel.

    (a) In addition to the requirements of Sec. 173.21(i), a cigarette 
lighter or other similar device charged with a flammable gas must be 
shipped as follows:
    (1) No more than 70 ml (2.3 fluid ounces) of liquefied gas may be 
loaded into each device;
    (2) The liquid portion of the gas may not exceed 85 percent of the 
volumetric capacity of each fluid chamber at 15  deg.C (59  deg.F);
    (3) Each device, including closures, must be capable of withstanding 
without leakage or rupture an internal pressure of at least two times 
the vapor pressure of the fuel at 55  deg.C (131  deg.F); and
    (4) Devices must be overpacked in packaging that is designed or 
arranged to prevent movement of the device itself.
    (b) When no more than 1,500 devices covered by this section are 
transported in one motor vehicle by highway, the requirements of parts 
172 and 177 of this subchapter do not apply.
    (c) For transportation by water in a closed transport vehicle or a 
closed freight container, the following warning must be affixed to the 
access doors:

    WARNING--MAY CONTAIN EXPLOSIVE MIXTURES WITH AIR--KEEP IGNITION 
SOURCES AWAY WHEN OPENING.


The warning must be on a contrasting background and must be readily 
legible from a distance of 8 m (26 feet).
[Amdt. 173-94, 41 FR 16081, Apr. 15, 1976, as amended by Amdt. 173-94A, 
41 FR 40683, Sept. 20, 1976; Amdt. 173-120, 43 FR 39792, Sept. 7, 1978; 
Amdt. 173-165, 48 FR 28101, June 20, 1983; Amdt. 173-224, 55 FR 52665 
Dec. 21, 1990; 56 FR 66276, Dec. 20, 1991]



Sec. 173.309  Fire extinguishers.

    (a) Fire extinguishers charged with a limited quantity of compressed 
gas to not more than 1660 kPa (241 psig) at 21  deg.C (70  deg.F) are 
excepted from labeling (except when offered for transportation by air) 
and the specification packaging requirements of this subchapter when

[[Page 533]]

shipped under the following conditions. In addition, shipments are not 
subject to subpart F of part 172 of this subchapter, to part 174 of this 
subchapter except Sec. 174.24 or to part 177 of this subchapter except 
Sec. 177.817.
    (1) Each fire extinguisher must have contents which are 
nonflammable, non-poisonous, and noncorrosive as defined under this 
subchapter.
    (2) Each fire extinguisher must be shipped as an inner packaging.
    (3) Nonspecification cylinders are authorized subject to the 
following conditions:
    (i) The internal volume of each cylinder may not exceed 18 liters 
(1,100 cubic inches). For fire extinguishers not exceeding 900 ml (55 
cubic inches) capacity, the liquid portion of the gas plus any 
additional liquid or solid must not completely fill the container at 55 
deg.C (130  deg.F). Fire extinguishers exceeding 900 ml (55 cubic 
inches) capacity may not contain any liquefied compressed gas;
    (ii) Each fire extinguisher manufactured on and after January 1, 
1976, must be designed and fabricated with a burst pressure of not less 
than six times its charged pressure at 21  deg.C (70  deg.F) when 
shipped;
    (iii) Each fire extinguisher must be tested, without evidence of 
failure or damage, to at least three times its charged pressure at 21 
deg.C (70  deg.F) but not less than 825 kPa (120 psig) before initial 
shipment, and must be marked to indicate the year of the test (within 90 
days of the actual date of the original test) and with the words ``MEETS 
DOT REQUIREMENTS.'' This marking is considered a certification that the 
fire extinguisher is manufactured in accordance with the requirements of 
this section. The words ``This extinguisher meets all requirements of 49 
CFR 173.306'' may be displayed on fire extinguishers manufactured prior 
to January 1, 1976; and
    (iv) For any subsequent shipment, each fire extinguisher must be in 
compliance with the retest requirements of the Occupational Safety and 
Health Administration Regulations of the Department of Labor, 29 CFR 
1910.157(e).
    (4) Specification 2P or 2Q (Secs. 178.33 and 178.33a of this 
subchapter) inner nonrefillable metal packagings are authorized for use 
as fire extinguishers subject to the following conditions:
    (i) The liquid portion of the gas plus any additional liquid or 
solid may not completely fill the packaging at 55  deg.C (130  deg.F);
    (ii) Pressure in the packaging shall not exceed 1250 kPa (181 psig) 
at 55  deg.C (130  deg.F). If the pressure exceeds 920 kPa (141 psig) at 
55  deg.C (130  deg.F), but does not exceed 1100 kPa (160 psig) at 55 
deg.C (130  deg.F), a specification DOT 2P inner metal packaging must be 
used; if the pressure exceeds 1100 kPa (160 psig) at 55  deg.C (130 
deg.F), a specification DOT 2Q inner metal packaging must be used. The 
metal packaging must be capable of withstanding, without bursting, a 
pressure of one and one-half times the equilibrium pressure of the 
contents at 55  deg.C (130  deg.F); and
    (iii) Each completed inner packaging filled for shipment must have 
been heated until the pressure in the container is equivalent to the 
equilibrium pressure of the contents at 55  deg.C (130  deg.F) without 
evidence of leakage, distortion, or other defect.
    (b) Specification 3A, 3AA, 3E, 3AL, 4B, 4BA, 4B240ET or 4BW 
(Secs. 178.36, 178.37, 178.42, 178.46, 178.50, 178.51, 178.55 and 178.61 
of this subchapter) cylinders are authorized for use as fire 
extinguishers.
[Amdt. 173-235, 58 FR 50503, Sept. 27, 1993, as amended by Amdt. 173-
138, 59 FR 49134, Sept. 26, 1994; Amdt. 173-258, 61 FR 51240, Oct. 1, 
1996]



Sec. 173.314  Compressed gases in tank cars and multi-unit tank cars.

    (a) Definitions. For definitions of compressed gases, see 
Sec. 173.115.
    (b) General requirements. (1) Tank car tanks containing compressed 
gases must not be shipped unless they were loaded by or with the consent 
of the owner thereof.
    (2) Tank car tanks must not contain gases capable of combining 
chemically and must not be loaded with any gas which combines chemically 
with the gas previously loaded therein, until all residue has been 
removed and interior of tank thoroughly cleaned.
    (3) For tanks of the DOT-106A and 110A class, the tanks must be 
placed in position and attached to car structure by the shipper.

[[Page 534]]

    (4) Wherever the word ``approved'' is used in this part of the 
regulations, it means approval by the Association of American Railroads 
Committee on Tank Cars as prescribed in Sec. 179.3 of this subchapter.
    (5) Each tank car used for the transportation of anhydrous ammonia 
or any material that meets the criteria of Division 2.1 or 2.3 must have 
gaskets for manway cover plates and for mounting of fittings designed 
(for temperature, application, media, pressure, and size) to create a 
positive seal so that, under conditions normally incident to 
transportation, there will not be an identifiable release of the 
material to the environment. The use of sealants to install gaskets is 
prohibited.
    (c) Authorized gases, filling limits for tank cars. A compressed gas 
in a tank car or a multi-unit tank car must be offered for 
transportation in accordance with Sec. 173.31 and this section. The 
named gases must be loaded and offered for transportation in accordance 
with the following table:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                         Outage and filling limits                                              
         Proper shipping name                   (see note 1)                   Authorized tank car class        
----------------------------------------------------------------------------------------------------------------
Ammonia, anhydrous, or ammonia         Notes 2, 10..................  105, 112, 114, 120.                       
 solutions > 50 percent ammonia.                                                                                
                                       Note 3.......................  106.                                      
Ammonia solutions with > 35 percent,   Note 3.......................  105, 109, 112, 114, 120.                  
 but  50 percent ammonia by mass.                                                                               
Argon, compressed....................  Note 4.......................  107.                                      
Boron trichloride....................  Note 3.......................  105, 106.                                 
Carbon dioxide, refrigerated liquid..  Note 5.......................  105.                                      
Chlorine.............................  Note 6.......................  105.                                      
                                       125..........................  106.                                      
Chlorine trifluoride.................  Note 3.......................  106, 110.                                 
Chlorine pentafluoride...............  Note 3.......................  106, 110.                                 
Dimethyl ether.......................  Note 3.......................  105, 106, 110, 112, 114, 120.             
Dimethylamine, anhydrous.............  Note 3.......................  105, 106, 112.                            
Dinitrogen tetroxide, inhibited......  Note 3.......................  105, 106, 110.                            
Division 2.1 materials not             Notes 9, 10..................  105, 106, 110, 112, 114, 120.             
 specifically identified in this                                                                                
 table.                                                                                                         
Division 2.2 materials not             Note 3.......................  105, 106, 109, 110, 112, 114, 120.        
 specifically identified in this                                                                                
 table.                                                                                                         
Division 2.3 Zone A materials not      None.........................  See Sec.  173.245.                        
 specifically identified in this                                                                                
 table.                                                                                                         
Division 2.3 Zone B materials not      Note 3.......................  105, 106, 110, 112, 114, 120.             
 specifically identified in this                                                                                
 table.                                                                                                         
Division 2.3 Zone C materials not      Note 3.......................  105, 106, 110, 112, 114, 120.             
 specifically identified in this                                                                                
 table.                                                                                                         
Division 2.3 Zone D materials not      Note 3.......................  105, 106, 109, 110, 112, 114, 120.        
 specifically identified in this                                                                                
 table.                                                                                                         
Ethylamine...........................  Note 3.......................  105, 106, 110, 112, 114, 120.             
Helium, compressed...................  Note 4.......................  107.                                      
Hydrogen.............................  Note 4.......................  107.                                      
Hydrogen chloride, refrigerated        Note 7.......................  105.                                      
 liquid.                                                                                                        
Hydrogen sulphide, liquified.........  68...........................  106.                                      
Methyl bromide.......................  Note 3.......................  105, 106.                                 
Methyl chloride......................  Note 3.......................  105, 106, 112.                            
Methyl mercaptan.....................  Note 3.......................  105, 106.                                 
Methylamine, anhydrous...............  Note 3.......................  105, 106, 112.                            
Nitrogen, compressed.................  Note 4.......................  107.                                      
Nitrosyl chloride....................  124..........................  105.                                      
                                       110..........................  106.                                      
Nitrous oxide, refrigerated liquid...  Note 5.......................  105.                                      
Oxygen, compressed...................  Note 4.......................  107.                                      
Phosgene.............................  Note 3.......................  106.                                      
Sulfur dioxide, liquified............  125..........................  105, 106, 110.                            
Sulfuryl fluoride....................  120..........................  105.                                      
Vinyl fluoride, inhibited............  Note 8.......................  105.                                      
----------------------------------------------------------------------------------------------------------------
Notes:                                                                                                          
1. The percent filling density for liquefied gases is hereby defined as the percent ratio of the mass of gas in 
  the tank to the mass of water that the tank will hold. For determining the water capacity of the tank in      
  kilograms, the mass of one liter of water at 15.5 deg.C in air is 1 kg. (the mass of one gallon of water at 60
  deg.F in air is 8.32828 pounds).                                                                              
2. The liquefied gas must be loaded so that the outage is at least two percent of the total capacity of the tank
  at the reference temperature of 46 deg. C (115 deg. F) for a noninsulated tank; 43 deg. C (110 deg. F) for a  
  tank having a thermal protection system incorporating a metal jacket that provides an overall thermal         
  conductance at 15.5 deg. C (60 deg. F) of no more than 10.22 kilojoules per hour per square meter per degree  
  Celsius (0.5 Btu per hour/per square foot/per degree F) temperature differential; and 41 deg. C (105 deg. F)  
  for an insulated tank having an insulation system incorporating a metal jacket that provides an overall       
  thermal conductance at 15.5 deg. C (60 deg. F) of no more than 1.5333 kilojoules per hour per square meter per
  degree Celsius (0.075 Btu per hour/per square foot/per degree F) temperature differential.                    
3. The requirements of Sec.  173.24b(a) apply.                                                                  

[[Page 535]]

                                                                                                                
4. The gas pressure at 54.44  deg.C (130  deg.F.) in any non-insulated tank car may not exceed 7/10 of the      
  marked test pressure, except that a tank may be charged with helium to a pressure 10 percent in excess of the 
  marked maximum gas pressure at 54.44  deg.C (130  deg.F.) of each tank.                                       
5. The liquid portion of the gas at -17.77  deg.C (0  deg.F.) must not completely fill the tank.                
6. The maximum permitted filling density is 125 percent. The quantity of chlorine loaded into a single unit-tank
  car may not be loaded in excess of the normal lading weights nor in excess of 81.65 Mg (90 tons).             
7. 89 percent maximum to 80.1 percent minimum at a test pressure of 6.2 Bar (90 psi).                           
8. 59.6 percent maximum to 53.6 percent minimum at a test pressure of 7.2 Bar (105 psi).                        
9. For a liquefied petroleum gas, the liquefied gas must be loaded so that the outage is at least one percent of
  the total capacity of the tank at the reference temperature of 46 deg. C (115 deg. F) for a noninsulated tank;
  43 deg. C (110 deg. F) for a tank having a thermal protection system incorporating a metal jacket that        
  provides an overall thermal conductance at 15.5 deg. C (60 deg. F) of no more than 10.22 kilojoules per hour  
  per square meter per degree Celsius (0.5 Btu per hour/per square foot/per degree F) temperature differential; 
  and 41 deg. C (105 deg. F) for an insulated tank having an insulation system incorporating a metal jacket that
  provides an overall thermal conductance at 15.5 deg. C (60 deg. F) of no more than 1.5333 kilojoules per hour 
  per square meter per degree Celsius (0.075 Btu per hour/per square foot/per degree F) temperature             
  differential.                                                                                                 
10. For liquefied petroleum gas and anhydrous ammonia, during the months of November through March (winter), the
  following reference temperatures may be used: 38 deg. C (100 deg. F) for a noninsulated tank; 32 deg. C (90   
  deg. F) for a tank having a thermal protection system incorporating a metal jacket that provides an overall   
  thermal conductance at 15.5 deg. C (60 deg. F) of no more than 10.22 kilojoules per hour per square meter per 
  degree Celsius (0.5 Btu per hour/per square foot/per degree F) temperature differential; and 29 deg. C (85    
  deg. F) for an insulated tank having an insulation system incorporating a metal jacket and insulation that    
  provides an overall thermal conductance at 15.5 deg. C (60 deg. F) of no more than 1.5333 kilojoules per hour 
  per square meter per degree Celsius (0.075 Btu per hour/per square foot/per degree F) temperature             
  differential. The winter reference temperatures may only be used for a tank car shipped directly to a consumer
  for unloading and not stored in transit. The offeror of the tank must inform each customer that the tank car  
  was filled based on winter reference temperatures. The tank must be unloaded as soon as possible after March  
  in order to retain the specified outage and to prevent a release of hazardous material which might occur due  
  to the tank car becoming liquid full at higher temperatures.                                                  

    (d) [Reserved]
    (e) Verification of content. The amount of liquefied gas loaded into 
each tank may be determined either by measurement or calculation of the 
weight. If by measurement, the weight must be checked after 
disconnecting the loading line by the use of proper scales. If by 
calculation, the weight of liquefied petroleum gas, methylacetylene 
propadiene, stabilized, dimethylamine, monomethylamine, or 
trimethylamine may be calculated using the outage tables supplied by the 
tank car owners and the specific gravities as determined at the plant, 
and this computation must be checked by determination of specific 
gravity of product after loading. Carriers may verify calculated weights 
by use of proper scales. The use of a fixed tube gauge device is 
authorized for determining the weight of methyl mercaptan in 
Specification 105A300W tanks instead of weighing.
    (f) [Reserved]
    (g) Special requirements for hydrogen chloride, refrigerated liquid, 
and vinyl fluoride, inhibited.
    (1) The shipper shall notify the Bureau of Explosives whenever a car 
is not received by the consignee within 20 days from the date of 
shipment.
    (2) A tank car containing hydrogen chloride, refrigerated liquid 
must have the auxiliary valve on the pressure relief device closed 
during transportation.
    (3) See Sec. 179.102-17 of this subchapter for additional 
requirements.
    (4) Tank cars containing hydrogen chloride, refrigerated liquid, 
must be unloaded to such an extent that any residue remaining in the 
tank at a reference temperature of 32  deg.C (90  deg.F) will not 
actuate the safety relief device.
    (h)-(i)  [Reserved]
    (j) Special requirements for materials having a primary or secondary 
Division 2.1 (flammable gas) hazard. For single unit tank cars, interior 
pipes of loading and unloading valves, sampling devices, and gauging 
devices with an opening for the passage of the lading exceeding 1.52 mm 
(0.060 inch) diameter must be equipped with excess flow valves. For 
single unit tank cars constructed before January 1, 1972, gauging 
devices must conform to this paragraph by no later than July 1, 2006. 
The protective housing cover must be provided with an opening, with a 
weatherproof cover, above each safety relief valve that is concentric 
with the discharge of the safety relief valve and that has an area at 
least equal to the valve outlet area. Class DOT 109 tank cars and tank 
cars manufactured from aluminum or nickel plate are not authorized.
    (k) Special requirements for chlorine. Tank cars built after 
September 30, 1991, must have an insulation system consisting of 5.08 cm 
(2 inches) glass fiber placed over 5.08 cm (2 inches) of ceramic fiber. 
Tank cars must have excess flow valves on the interior pipes of liquid 
discharge valves. Tank cars constructed to a DOT 105A500W specification 
may be marked as a DOT 105A300W

[[Page 536]]

specification with the size and type of safety relief valves required by 
the marked specification.
    (l) Special requirements for hydrogen sulphide. Each multi-unit tank 
car must be equipped with adequate safety relief devices of the fusible 
plug type having a yield temperature not over 76.66  deg.C (170 
deg.F.), and not less than 69.44  deg.C (157  deg.F.). Each device must 
be resistant to extrusion of the fusible alloy and leak tight at 55 
deg.C (130  deg.F.). Each valve outlet must be sealed by a threaded 
solid plug. In addition, all valves must be protected by a metal cover.
    (m) Special requirements for nitrosyl chloride. Single unit tank 
cars and their associated service equipment, such as venting, loading 
and unloading valves, and safety relief valves, must be made of metal or 
clad with a material that is not subject to rapid deterioration by the 
lading. Multi-unit tank car tanks must be nickel-clad and have safety 
relief devices incorporating a fusible plug having a yield temperature 
of 79.44  deg.C (175  deg.F.). Safety relief devices must be vapor tight 
at 54.44  deg.C (130  deg.F.).
    (n) Special requirements for hydrogen. Each tank car must be 
equipped with one or more safety relief devices. The discharge outlet 
for each safety relief device must be connected to a manifold having a 
non-obstructed discharge area of at least 1.5 times the total discharge 
area of the safety relief devices connected to the manifold. All 
manifolds must be connected to a single common header having a non-
obstructed discharge pointing upward and extending above the top of the 
car. The header and the header outlet must each have a non-obstructed 
discharge area at least equal to the total discharge area of the 
manifolds connected to the header. The header outlet must be equipped 
with an ignition device that will instantly ignite any hydrogen 
discharged through the safety relief device.
    (o) Special requirements for carbon dioxide, refrigerated liquid and 
nitrous oxide, refrigerated liquid. Each tank car must have an 
insulation system so that the thermal conductance is not more than 0.613 
kilojoules per hour, per square meter, per degree Celsius (0.03 B.t.u. 
per square foot per hour, per degree Fahrenheit) temperature 
differential. Each tank car must be equipped with one safety relief 
valve set to open at a pressure not exceeding 75 percent of the tank 
test pressure and one frangible disc design to burst at a pressure less 
than the tank test pressure. The discharge capacity of each safety 
relief device must be sufficient to prevent building up of pressure in 
the tank in excess of 82.5 percent of the test pressure of the tank. 
Tanks must be equipped with two regulating valves set to open at a 
pressure not to exceed 24.1 Bar (350 psi) on DOT 105A500W tanks and at a 
pressure not to exceed 27.6 Bar (400 psi) on DOT 105A600W tanks. Each 
regulating valve and safety relief device must have its final discharge 
piped to the outside of the protective housing.
[Amdt. 173-224, 55 FR 52665, Dec. 21, 1990]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.314, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.315  Compressed gases in cargo tanks and portable tanks.

    (a) A compressed gas offered for transportation in a cargo tank 
motor vehicle or a portable tank must be prepared in accordance with 
this section, Secs. 173.32, 173.33 and subpart E of part 180 of this 
subchapter; for cryogenic liquids, see Sec. 173.318; for marking 
requirements, see Secs. 172.326 and 172.328 of this subchapter. A 
compressed gas must be loaded and offered for transportation in 
accordance with the following table:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                     Maximum permitted filling density       Specification container required   
                                 -------------------------------------------------------------------------------
           Kind of gas                                 Percent by volume                                        
                                   Percent by weight   (see par. (f) of    Type (see Note 2)    Minimum design  
                                     (see Note 1)        this section)                          pressure (psig) 
----------------------------------------------------------------------------------------------------------------
Ammonia, anhydrous or Ammonia     56................  82, See Note 5....  DOT-51, MC-330, MC- 265; See Note 17. 
 solutions with greater than 50                                            331; See Notes 12                    
 percent ammonia (see Notes 14                                             and 17.                              
 and 17).                                                                                                       

[[Page 537]]

                                                                                                                
Ammonia solutions with more than  See par. (c) of     See Note 7........  DOT-51, MC-330, MC- 100; See par. (c) 
 35 percent but not more than 50   this section.                           331; see Note 12.   of this section. 
 percent ammonia.                                                                                               
Bromotrifluoromethane (R-13B1 or  133...............  See Note 7........  DOT-51, MC-330, MC- 365.              
 H-1301); (See Note 9).                                                    331.                                 
Butadiene, inhibited............  See par. (b) of     See par. (b) of     DOT-51, MC-330, MC- 100.              
                                   this section.       this section.       331.                                 
Carbon dioxide, refrigerated      See par. (c)(1) of  95................  ......do..........  200; see Note 3.  
 liquid.                           this section.                                                                
Chlorine........................  125...............  See Note 7........  DOT-51, MC-330, MC- 225; See Notes 4  
                                                                           331.                and 8.           
Chlorodifluoroethane (R-142b) (1- 100...............  See Note 7........  DOT-51, MC-330, MC- 100.              
 Chloro 1,1-difluoroethane);                                               331.                                 
 (See Note 9).                                                                                                  
Chlorodifluoromethane (R-22);     105...............  See Note 7........  DOT-51, MC-330, MC- 250.              
 (See Note 9).                                                             331.                                 
Chloropentafluoroethane (R-115);  See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See par. (c) of   
 (See Note 9).                     this section.                           331.                this section.    
Chlorotrifluoromethane (R-13);    See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See par. (c) of   
 (See Note 9).                     this section.                           331.                this section.    
Dichlorodifluoromethane (R-12);   119...............  See Note 7........  DOT-51, MC-330, MC- 150.              
 (See Note 9).                                                             331.                                 
Difluoroethane (R-152a); (See     79................  See Note 7........  DOT-51, MC-330, MC- 150.              
 Note 9).                                                                  331.                                 
Dimethyl ether (see Note 16)....  59................  ......do..........  ......do..........  200.              
Dimethylamine, anhydrous........  59................  See Note 7........  DOT-51, MC-330, MC- 150.              
                                                                           331.                                 
Division 2.1, materials not       See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See Note 18.      
 specifically provided for in      this section.                           331.                                 
 this table.                                                                                                    
Division 2.2, materials not       See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See Note 19.      
 specifically provided for in      this section.                           331.                                 
 this table.                                                                                                    
Division 2.3, Hazard Zone A,      See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See Note 20.      
 materials not specifically        this section.                           331; See Note 23.                    
 provided for in this table.                                                                                    
Division 2.3, Hazard Zone B,      See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See Note 20.      
 materials not specifically        this section.                           331; See Note 23.                    
 provided for in this table.                                                                                    
Division 2.3, Hazard Zone C,      See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See Note 21.      
 materials not specifically        this section.                           331; See Note 24.                    
 provided for in this table.                                                                                    
Division 2.3, Hazard Zone D,      See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See Note 22.      
 materials not specifically        this section.                           331; See Note 25.                    
 provided for in this table.                                                                                    
Ethane, refrigerated liquid.....  ..................  See par. (c) of     MC-331, MC-338....  100; see Note 11. 
                                                       this section.                                            
Ethane-propane mixture,           ..................  See par. (c) of     MC-331, MC-338....  275; see Note 11. 
 refrigerated liquid.                                  this section.                                            
Hexafluoropropylene.............  110...............  See Note 7........  DOT-51, MC-330, MC- 250.              
                                                                           331.                                 
Hydrogen chloride, refrigerated   103.0.............  See Note 7........  MC-331, MC-338....  100; see Note 11. 
 liquid.                                                                                                        
                                  91.6..............  ......do..........  ......do..........  300; see Note 11. 
                                  86.7..............  ......do..........  ......do..........  450; see Note 11. 
Liquefied petroleum gas (see      See par. (b) of     See par. (b) of     DOT-51, MC-330, MC- See par. (c) of   
 Note 15).                         this section.       this section.       331.                this section.    
Methylacetylene-propadiene,       53................  90................  DOT 51, MC 330, MC  200.              
 stabilized (see Note 13).                                                 331.                                 
Methylamine, anhydrous..........  60................  See Note 7........  DOT-51, MC-330, MC- ..................
                                                                           331..                                
Methyl chloride.................  84................  88.5..............  ......do..........  150.              
Methyl chloride (optional         ......do..........  See Note 6........  DOT-51............  225.              
 portable tank 2,000 pounds                                                                                     
 water capacity, fusible plug).                                                                                 
Methyl mercaptan................  80................  90................  DOT-51, MC-330, MC- 100.              
                                                                           331; See Note 23.                    
Nitrous oxide, refrigerated       See par. (c)(1) of  95................  DOT-51, MC-330, MC- 200; See Note 3.  
 liquid.                           this section.                           331.                                 
Refrigerant gas, n.o.s. or        See par. (c) of     See Note 7........  DOT-51, MC-330, MC- See par. (c) of   
 Dispersant gas, n.o.s. (See       this section.                           331.                this section.    
 Note 9).                                                                                                       

[[Page 538]]

                                                                                                                
Sulfur dioxide (tanks not over    125...............  87.5..............  DOT-51, MC-330, MC- 150; See Note 4.  
 1,200 gallons water capacity).                                            331; See Note 24.                    
Sulfur dioxide (tanks over 1,200  125...............  87.5..............  DOT-51, MC-330, MC- 125; See Note 4.  
 gallons water capacity).                                                  331; See Note 24.                    
Sulfur dioxide (optional          125...............  See Note 6........  DOT-51; See Note    225.              
 portable tank 1,000-2,000                                                 24.                                  
 pounds water capacity, fusible                                                                                 
 plug).                                                                                                         
Trimethylamine, anhydrous.......  57................  See Note 7........  DOT-51, MC-330, MC- 150.              
                                                                           331.                                 
Vinyl chloride..................  84 (see Note 13)..  See Note 7........  MC-330, MC-331....  150.              
Vinyl fluoride, inhibited.......  66................  ......do..........  ......do..........  250; see Note 11. 
Vinyl methyl ether..............  68................  See Notes 7 and 13  ......do..........  100.              
----------------------------------------------------------------------------------------------------------------
Note 1: Maximum filling density for liquefied gases is hereby defined as the percent ratio of the weight of gas 
  in the tank to the weight of water that the tank will hold. For determining the water capacity of the tank in 
  pounds, the weight of a gallon (231 cubic inches) of water at 60 deg. F. in air shall be 8.32828 pounds.      
Note 2: See Sec.  173.32 for authority to use other portable tanks and for manifolding cargo tanks, see Sec.    
  173.301(d). Specifications MC 330 cargo tanks may be painted as specified for MC 331 cargo tanks.             
Note 3: If cargo tanks and portable tank containers for carbon dioxide, refrigerated liquid and nitrous oxide,  
  refrigerated liquid are designed to conform to the requirements of the ASME Code for Low Temperature          
  Operation, the design pressure may be reduced to 100 p.s.i.g. or the controlled pressure, whichever is        
  greater.                                                                                                      
Note 4: Material must be steel. Packagings must have a corrosion allowance of 20 percent or 0.10 inch, whichever
  is less, added to the metal thickness. The minimum wall thickness for chlorine packagings is 0.300 inch for   
  stainless steel or 0.625 inch for carbon steel, including corrosion allowance.                                
Note 5: Unlagged cargo tanks and portable tank containers for liquid anhydrous ammonia may be filled to 87.5    
  percent by volume provided the temperature of the anhydrous ammonia being loaded into such tanks is determined
  to be not lower than 30 deg. F. or provided the filling of such tanks is stopped at the first indication of   
  frost or ice formation on the outside surface of the tank and is not resumed until such frost or ice has      
  disappeared.                                                                                                  
Note 6: Tanks equipped with fusible plugs must be filled by weight.                                             
Note 7: Tanks must be filled by weight.                                                                         
Note 8: Chlorine packagings may be shipped only if the contents are to be unloaded at one unloading point.      
Note 9: This gas may be transported in authorized cargo tanks and portable tanks marked ``dispersant gas,'' or  
  ``refrigerant gas.''                                                                                          
Note 10: [Reserved]                                                                                             
Note 11: MC-330, MC-331 and MC-338 cargo tanks must be insulated. Cargo tanks must meet all the following       
  requirements. Each tank must have a design service temperature of minus 100 deg.F., or no warmer than the     
  boiling point at one atmosphere of the hazardous material to be shipped therein, whichever is colder, and must
  conform to the low-temperature requirements of the ASME Code. When the normal travel time is 24 hours or less,
  the tank's holding time as loaded must be at least twice the normal travel time. When the normal travel time  
  exceeds 24 hours, the tank's holding time as loaded must be at least 24 hours greater than the normal travel  
  time. The holding time is the elapsed time from loading until venting occurs under equilibrium conditions. The
  cargo tank must have an outer jacket made of steel when the cargo tank is used to transport a flammable gas.  
Note 12: No aluminum, copper, silver, zinc or an alloy of any of these metals shall be used in packaging        
  construction where it comes into contact with the lading.                                                     
Note 13: All parts of valves and safety devices in contact with contents of tank must be of a metal or other    
  material suitably treated if necessary, which will not cause formation of any acetylides.                     
Note 14: Specifications MC 330 and MC 331 cargo tanks constructed of other than quenched and tempered steel     
  ``(NQT)'' are authorized for all grades of anhydrous ammonia. Specifications MC 330 and MC 331 cargo tanks    
  constructed of quenched and tempered steel ``(QT)'' (see marking requirements of Sec.  172.328(c) of this     
  subchapter) are authorized for anhydrous ammonia having a minimum water content of 0.2 percent by weight. Any 
  tank being placed in anhydrous ammonia service or a tank which has been in other service or has been opened   
  for inspection, test, or repair, must be cleaned of the previous product and must be purged of air before     
  loading. See Sec.  172.203(h) of this subchapter for special shipping paper requirements.                     
Note 15: Specifications MC 330 and MC 331 cargo tanks constructed of other than quenched and tempered steel     
  (NQT) are authorized for all grades of liquefied petroleum gases. Only grades of liquefied petroleum gases    
  determined to be ``noncorrosive'' are authorized in Specification MC 330 and MC 331 cargo tanks constructed of
  quenched and tempered steel (QT). ``Noncorrosive'' means the corrosiveness of the gas does not exceed the     
  limitations for classification 1 of the ASTM Copper Strip Classifications when tested in accordance with ASTM 
  D1838-64, ``Copper Strip Corrosion by Liquefied Petroleum (LP) Gases.'' (For (QT) and (NQT) marking           
  requirements see Sec.  172.328(c) of this subchapter. For special shipping paper requirements, see Sec.       
  172.203(h) of this subchapter.)                                                                               
Note 16: Specifications MC 330 and MC 331 cargo tanks must be equipped with emergency discharge controls that   
  conform to Sec.  178.337-11(c) of this subchapter.                                                            
Note 17: A Specification MC-330 or MC-331 cargo tank or a nonspecification cargo tank meeting, and marked in    
  conformance with, the edition of the ASME Code in effect when it was fabricated, may be used for the          
  transportation of anhydrous ammonia if it:                                                                    
(1) Has a minimum design pressure not lower than 250 psig;                                                      
(2) Was manufactured in conformance with the ASME Code prior to January 1, 1981, according to its ASME name     
  plate and manufacturer's data report;                                                                         
(3) Is painted white or aluminum;                                                                               
(4) Complies with Note 12 of this paragraph;                                                                    
(5) Has been inspected and tested in accordance with subpart E of part 180 of this subchapter as specified for  
  MC 331 cargo tanks.                                                                                           
(6) Was used to transport anhydrous ammonia prior to January 1, 1981;                                           
(7) Is operated exclusively in intrastate commerce (including its operation by a motor carrier otherwise engaged
  in interstate commerce) in a state where its operation was permitted by the laws of that State (not including 
  the incorporation of this subchapter) prior to January 1, 1981; and                                           
(8) Is operated in conformance with all other requirements of this subchapter.                                  

[[Page 539]]

                                                                                                                
Note 18: The minimum packaging design pressure must not be less than the vapor pressure at the reference        
  temperature of the lading plus one percent or 173.4 kPa (25 psig), whichever is less.                         
Note 19: The minimum packaging design pressure must not be less than the vapor pressure at the reference        
  temperature of the lading.                                                                                    
Note 20: The minimum packaging design pressure must not be less than 1.5 times the vapor pressure of the lading 
  at 46 deg.C (115 deg.F).                                                                                      
Note 21: The minimum packaging design pressure must not be less than 1.3 times the vapor pressure of the lading 
  at 46 deg.C (115 deg.F).                                                                                      
Note 22: The minimum packaging design pressure must not be less than 1.1 times the vapor pressure of the lading 
  at 46 deg.C (115 deg.F).                                                                                      
Note 23: Packagings must be made of stainless steel except that steel other than stainless steel may be used in 
  accordance with the provisions of Sec.  173.24b(b) of this part. Thickness of stainless steel for shell and   
  heads must be the greater of 7.62 mm (0.300 inch) or the thickness required for the packaging at its minimum  
  design pressure.                                                                                              
Note 24: Packagings must be made of stainless steel except that steel other than stainless steel may be used in 
  accordance with the provisions of Sec.  173.24b(b) of this part. Thickness of stainless steel for shell and   
  heads must be the greater of 6.35 mm (0.250 inch) or the thickness required for the packaging at its minimum  
  design pressure. For sulphur dioxide, this Note does not apply until October 1, 1994.                         
Note 25: Packagings must be made of stainless steel except that steel other than stainless steel may be used in 
  accordance with the provisions of Sec.  173.24b(b) of this part. Thickness for shell and heads must be as     
  calculated for the packaging at its minimum design pressure.                                                  

    (b) Maximum permitted filling densities for cargo and portable tank 
containers for transportation of butadiene, inhibited, and liquefied 
petroleum gas are as follows:

                                                                        
------------------------------------------------------------------------
                                                     Maximum permitted  
                                                    filling density in  
                                                   percent of the water-
                                                  weight capacity of the
 Maximum specific gravity of the liquid material    tanks (percent) See 
                  at 60 deg. F.                           Note 1        
                                                 -----------------------
                                                     1200               
                                                  gallons or   Over 1200
                                                     less       gallons 
------------------------------------------------------------------------
0.473 to 0.480..................................          38          41
0.481 to 0.488..................................          39          42
0.489 to 0.495..................................          40          43
0.496 to 0.503..................................          41          44
0.504 to 0.510..................................          42          45
0.511 to 0.519..................................          43          46
0.520 to 0.527..................................          44          47
0.528 to 0.536..................................          45          48
0.537 to 0.544..................................          46          49
0.545 to 0.552..................................          47          50
0.553 to 0.560..................................          48          51
0.561 to 0.568..................................          49          52
0.569 to 0.576..................................          50          53
0.577 to 0.584..................................          51          54
0.585 to 0.592..................................          52          55
0.593 to 0.600..................................          53          56
0.601 to 0.608..................................          54          57
0.609 to 0.617..................................          55          58
0.618 to 0.626..................................          56          59
0.627 and over..................................          57          60
------------------------------------------------------------------------
Note 1: Filling is permitted by volume provided the same filling density
  is used as permitted by weight, except when using fixed length dip    
  tube or other fixed maximum liquid level indicators (paragraph (f) of 
  this section), in which case the maximum permitted filling density    
  shall not exceed 97 percent of the maximum permitted filling density  
  by weight contained in the table.                                     

    (1) Odorization. All liquefied petroleum gas shall be effectively 
odorized as required in Note 2 of this paragraph to indicate positively, 
by a distinctive odor, the presence of gas down to a concentration in 
air of not over one-fifth the lower limit of combustibility: Provided, 
however, That odorization is not required if harmful in the use or 
further processing of the liquefied petroleum gas, or if odorization 
will serve no useful purpose as a warning agent in such use or further 
processing.

    Note 1: The lower limits of combustibility of the more commonly used 
liquefied petroleum gases are: Propane, 2.15 percent; butane, 1.55 
percent. These figures represent volumetric percentages of gas-air 
mixtures in each case.
    Note 2: The use of 1.0 pound of ethyl mercaptan, 1.0 pound of 
thiophane, or 1.4 pounds of amyl mercaptan per 10,000 gallons of 
liquefied petroleum gas shall be considered sufficient to meet the 
requirements of Sec. 173.315(b)(1). This note does not exclude the use 
of any other odorant in sufficient quantity to meet the requirements of 
Sec. 173.315(b)(1).

    (c) Except as otherwise provided, the loading of a liquefied gas 
into a cargo tank or portable tank shall be determined by weight or by a 
suitable liquid level gauging device. The vapor pressure (psig) at 
115 deg. F. must not exceed the design pressure of the cargo tank or 
portable tank container. The outage and filling limits for liquefied 
gases must be as prescribed in Sec. 173.24b of this part, except that 
this requirement does not apply to:
    (1) A tank containing carbon dioxide, refrigerated liquid or nitrous 
oxide, refrigerated liquid. Such tank is required to be equipped with 
suitable pressure control valves and may not be filled to a level 
exceeding 95 percent of the volumetric capacity of the tank.
    (2) A tank containing ethane, refrigerated liquid; ethane-propane 
mixture, refrigerated liquid; or hydrogen chloride, refrigerated liquid. 
Such tank must be filled to allow at least two percent outage below the 
inlet of the pressure relief valve or pressure control valve under 
conditions of incipient

[[Page 540]]

opening, with the tank in a level attitude.
    (d) If the loading of cargo tanks and portable tank containers with 
liquefied gases is to be determined by weight, the gross weight shall be 
checked after the filling line is disconnected in each instance. The 
gross weight shall be calculated from the tank capacity and tare weight 
set forth on the metal plate required by the specification, and the 
maximum filling density permitted for the material being loaded into the 
tank as set forth in the table, paragraph (a) of this section.
    (e) If the loading of cargo tanks and portable tank containers with 
liquefied gases is to be determined by adjustable liquid level device, 
each tank and each compartment thereof shall have a thermometer well, so 
that the internal liquid temperature can easily be determined, and the 
amount of liquid in the tank shall be corrected to a 60 deg. F. basis. 
Liquid levels shall not exceed a level corresponding to the maximum 
filling density permitted for the material being loaded into the tank as 
set forth in the table in paragraph (a) of this section.
    (f) When the loading of cargo tanks and portable tank containers 
with liquefied gases is determined only by fixed length dip tube or 
other fixed maximum liquid level indicator, the device shall be arranged 
to function at a level not to exceed the maximum permitted volume 
prescribed by the table, paragraph (a)(1) of this section. Loading shall 
be stopped when the device functions.
    (g) Containers, the liquid level of which has been determined by 
means of a fixed length dip tube gauging device, shall not be acceptable 
for stowage as cargo on vessels in commerce subject to the jurisdiction 
of the United States Coast Guard. Nothing contained in this section 
shall be so construed as to prohibit the transportation on car floats or 
car ferries of motor vehicles laden with containers nor cargo tanks the 
liquid level of either of which has been determined by means of fixed 
length dip tube devices.
    (h) Each cargo tank and portable tank, except a tank filled by 
weight, must be equipped with one or more of the gauging devices 
described in the following table which indicate accurately the maximum 
permitted liquid level. Additional gauging devices may be installed but 
may not be used as primary controls for filling of cargo tanks and 
portable tanks. Gauge glasses are not permitted on any cargo tank or 
portable tank. Primary gauging devices used on cargo tanks of less than 
3500 gallons water capacity are exempt from the longitudinal location 
requirements specified in paragraphs (h)(2) and (3) of this section 
provided: The tank length does not exceed three times the tank diameter; 
and the cargo tank is unloaded within 24 hours after each filling of the 
tank.

                                                                        
------------------------------------------------------------------------
                                             Gaging device permitted for
                Kind of gas                       filling purposes      
------------------------------------------------------------------------
Anhydrous ammonia.........................  Rotary tube; adjustable slip
                                             tube; fixed length dip     
                                             tube.                      
Anhydrous dimethylamine...................  None.                       
Anhydrous monomethylamine.................      Do.                     
Anhydrous trimethylamine..................      Do.                     
Aqua ammonia solution containing anhydrous  Rotary tube; adjustable slip
 ammonia.                                    tube; fixed length dip     
                                             tube.                      
Butadiene, inhibited......................      Do.                     
Carbon dioxide, refrigerated liquid.......      Do.                     
Chlorine..................................  None.                       
Dichlorodifluoromethane...................      Do.                     
Difluoroethane............................      Do.                     
Difluoromonochloroethane..................      Do.                     
Dimethyl ether............................      Do.                     
Ethane, refrigerated liquid...............  Rotary tube; adjustable slip
                                             tube; fixed length dip     
                                             tube.                      
Ethane-propane mixture, refrigerated            Do.                     
 liquid.                                                                
Hexafluoropropylene.......................  None.                       
Hydrogen chloride, refrigerated liquid....      Do.                     
Liquefied petroleum gases.................  Rotary tube; adjustable slip
                                             tube; fixed length dip     
                                             tube.                      
Methyl chloride...........................  Fixed length dip tube.      
Methyl mercaptan..........................  Rotary tube; adjustable slip
                                             tube; fixed length dip     
                                             tube.                      
Monochlorodifluoromethane.................  None.                       
Nitrous oxide, refrigerated liquid........  Rotary tube; adjustable slip
                                             tube; fixed length dip     
                                             tube.                      
Methylacetylenepropadiene, stabilized.....      Do.                     
Refrigerant gas, n.o.s. or Dispersant gas,  None.                       
 n.o.s.                                                                 
Sulfur dioxide............................  Fixed length dip tube.      
Vinyl chloride............................  None.                       
Vinyl fluoride, inhibited.................      Do.                     
------------------------------------------------------------------------

    (1) The design pressure of the liquid level gauging devices shall be 
at least equal to the design pressure of the tank.

[[Page 541]]

    (2) If the primary gauging device is adjustable, it must be capable 
of adjustment so that the end of the tube will be in the location 
specified in paragraph (h)(3) of this section for at least one of the 
ladings to be transported, at the filling level corresponding to an 
average loading temperature. Exterior means must be provided to indicate 
this adjustment. The gauging device must be legibly and permanently 
marked in increments not exceeding 20 Fahrenheit degrees (or not 
exceeding 25 p.s.i.g. on tanks for carbon dioxide, refrigerated liquid 
or nitrous oxide, refrigerated liquid), to indicate the maximum levels 
to which the tank may be filled with liquid at temperatures above 
20 deg. F. However, if it is not practicable to so mark the gauging 
device, this information must be legibly and permanently marked on a 
plate affixed to the tank adjacent to the gauging device.
    (3) A dip tube gauging device consists of a pipe or tube with a 
valve at its outer end with its intake limited by an orifice not larger 
than 0.060 inch in diameter. If a fixed length dip tube is used, the 
intake must be located midway of the tank both longitudinally and 
laterally and at maximum permitted filling level. In tanks for liquefied 
petroleum gases, the intake must be located at the level reached by the 
lading when the tank is loaded to maximum filling density at 40 deg. F.
    (4) Except on a tank used exclusively for the transportation of 
carbon dioxide, refrigerated liquid or nitrous oxide, refrigerated 
liquid, each opening for a pressure gauge must be restricted at or 
inside the tank by an orifice no larger than 0.060 inch in diameter. For 
carbon dioxide, refrigerated liquid or nitrous oxide, refrigerated 
liquid service, the pressure gauge need only be used during the filling 
operation.
    (i) Each tank must be provided with one or more safety relief 
devices which, unless otherwise specified in this part, must be safety 
relief valves of the spring-loaded type. Each valve must be arranged to 
discharge upward and unobstructed to the outside of the protective 
housing to prevent any impingement of escaping gas upon the tank. For 
each chlorine tank the protective housing must be in compliance with the 
requirements set forth in the applicable specification.
    (1) The safety relief valves on each tank must meet the following 
conditions:
    (i) The total relieving capacity, as determined by the flow formulas 
contained in Section 5 of CGA Pamphlet S-1.2, must be sufficient to 
prevent a maximum pressure in the tank of more than 120 percent of the 
design pressure;
    (ii) The flow capacity rating, testing and marking must be in 
accordance with Sections 5, 6 and 7 of CGA Pamphlet S-1.2.
    (iii) For an insulated tank, the required relieving capacity of the 
relief valves must be the same as for an uninsulated tank, unless the 
insulation will remain in place and will be effective under fire 
conditions. In this case, each insulated tank must be covered by a sheet 
metal jacket of not less than 16 gauge thickness.
    (iv) An MC 330 cargo tank that has relief valves sized by Fetterly's 
formula dated November 27, 1928, may be continued in service. Copies of 
this formula may be obtained from the Bureau of Explosives.
    (2) Each safety relief valve must be arranged to minimize the 
possibility of tampering. If the pressure setting or adjustment is 
external to the valve, the safety relief valve must be provided with 
means for sealing the adjustment and it must be sealed.
    (3) Each safety relief valve on a tank must be set to start-to-
discharge at pressure no higher than 110 percent of the tank design 
pressure and no lower than the design pressure specified in paragraph 
(a) of this section for the gas transported.
    (4) Each safety relief valve must be plainly and permanently marked 
with the pressure in p.s.i.g. at which it is set to discharge, with the 
actual rate of discharge of the device in cubic feet per minute of the 
gas or of air at 60 deg. F. and 14.7 p.s.i.a., and with the 
manufacturer's name or trade name and catalog number. The start-to-
discharge valve must be visible after the valve is installed. The rated 
discharge capacity of the device must be determined at a pressure of 120 
percent of the design pressure of the tank.

[[Page 542]]

    (5) Each safety relief valve must have direct communication with the 
vapor space in the tank.
    (6) Each connection to a safety relief valve must be of sufficient 
size to provide the required rate of discharge through the safety relief 
valve.
    (7) No shut-off valve may be installed between a safety relief valve 
and the tank except in cases where two or more safety relief valves are 
installed on the same tank, and one or more safety shut-off valves are 
arranged to always provide the required relief capacity through at least 
one of the safety relief valves.
    (8) Each safety relief valve outlet must be provided with a 
protective device to prevent the entrance and accumulation of dirt and 
water. This device must not impede flow through the valve.
    (9) On tanks for carbon dioxide, refrigerated liquid or nitrous 
oxide, refrigerated liquid each safety relief device must be installed 
and located so that the cooling effect of the contents will not prevent 
the effective operation of the device. In addition to the required 
safety relief valves, these tanks may be equipped with one or more 
pressure controlling devices.
    (10) Each tank for carbon dioxide, refrigerated liquid also may be 
equipped with one or more frangible disc devices set to function at a 
pressure not over two times nor less than 1.5 times the design pressure 
of the tank.
    (11) Each portion of connected liquid piping or hose that can be 
closed at both ends must be provided with a safety relief valve without 
an intervening shut-off valve to prevent excessive hydrostatic pressure 
that could burst the piping or hose.
    (12) Subject to conditions of paragraph (a) of this section for the 
methyl chloride and sulfur dioxide optional portable tanks, one or more 
fusible plugs examined by the Bureau of Explosives and approved by the 
Associate Administrator for Hazardous Materials Safety may be used on 
these tanks in place of safety relief valves of the spring-loaded type. 
The fusible plug or plugs must be in accordance with CGA Pamphlet S-1.2, 
to prevent a pressure rise in the tank of more than 120 percent of the 
design pressure. If the tank is over 30 inches long, each end must have 
the total specified safety discharge area.
    (13) A safety relief valve on a chlorine cargo tanks must conform to 
one of the following standards of The Chlorine Institute, Inc.: Type 
1\1/2\ JQ225, Dwg. H51970, dated October 7, 1968; or Type 1\1/2\ JQ225, 
Dwg. H50155, Revision A, dated April 28, 1969.
    (j) Storage containers for liquefied petroleum gas for permanent 
installation on consumer premises may be shipped by private motor 
carrier only under the following conditions:
    (1) Each container must be constructed in compliance with the 
requirements of the ASME Code (containers built in compliance with 
earlier editions starting with 1943 are authorized) and must be marked 
to indicate compliance in the manner specified by the respective Code.
    (2) Each container must be equipped with safety devices in 
compliance with the requirements for safety devices on containers as 
specified in NFPA Pamphlet No. 58.
    (3) The containers shall be so braced or otherwise secured on the 
vehicle as to prevent relative motion while in transit. Valves or other 
fittings shall be adequately protected against injury during 
transportation. (See Sec. 177.834(g) of this subchapter.)
    (4) Except as provided in paragraph (j)(5) of this section, 
containers shall not be shipped when charged with liquefied petroleum 
gas to more than 5 percent of their water capacity.
    (5) Storage containers of less than 1,042 pounds water capacity (125 
gallons) may be shipped when charged with liquefied petroleum gas in 
compliance with DOT filling density.
    (k) A nonspecification cargo tank meeting, and marked in conformance 
with, the edition of the ASME Code in effect when it was fabricated, may 
be used for the transportation of liquefied petroleum gas if it:
    (1) Has a minimum design pressure no lower than 250 psig;
    (2) Has a capacity of 3,500 gallons or less;
    (3) Was manufactured in conformance with the ASME Code prior to 
January 1, 1981, according to its ASME name plate and manufacturer's 
data report;

[[Page 543]]

    (4) Conforms to NFPA Pamphlet 58;
    (5) Has been inspected and tested in accordance with subpart E of 
part 180 of this subchapter as specified for MC 331 cargo tanks;
    (6) Is operated exclusively in intrastate commerce (including its 
operation by a motor carrier otherwise engaged in interstate commerce) 
in a state where its operation was permitted by the laws of that State 
(not including the incorporation of this subchapter) prior to January 1, 
1981;
    (7) Was used to transport liquefied petroleum gas prior to January 
1, 1981; and
    (8) Is operated in conformance with all other requirements of this 
subchapter.
    (l) Anhydrous ammonia must not be offered for transportation or 
transported in specification MC 330 and MC 331 cargo tanks constructed 
of quenched and tempered (``QT'') steel except as provided in this 
paragraph.
    (1) The ammonia must have a minimum water content of 0.2 percent by 
weight. Any addition of water must be made using steam condensate, 
deionized, or distilled water.
    (2) Except as otherwise provided in this paragraph, each person 
offering for transportation or transporting anhydrous ammonia shall 
perform a periodic analysis for prescribed water content in the ammonia. 
The analysis must be performed:
    (i) From a sample of the ammonia in storage taken at least once 
every 7 days, or each time ammonia is added to the storage tanks, 
whichever is less frequent; or
    (ii) At the time the cargo tanks are loaded, then a sample of the 
ammonia taken from at least one loaded cargo tank out of each 10 loads, 
or from one cargo tank every 24 hours, whichever is less frequent; or
    (iii) At the same frequency as described in paragraph (l)(2)(ii) of 
this section, from a sample taken from the loading line to the cargo 
tank.
    (3) If water is added at the time of loading:
    (i) The sample for analysis must be taken from a point in the 
loading line between the water injection equipment and the cargo tank; 
and
    (ii) Positive provisions must be made to assure water injection 
equipment is operating.
    (4) If water injection equipment becomes inoperative, suitable 
corrective maintenance must be performed after which a sample from the 
first loaded cargo tank must be analyzed for prescribed water content.
    (5) The analysis method for water content must be as prescribed in 
CGA Pamphlet G-2.2, titled ``Tentative Standard Method for Determining 
Minimum of 0.2 per cent water in Anhydrous Ammonia,'' 1975 edition.
    (6) Records indicating the results of the analysis taken, as 
required by this paragraph, must be retained for 2 years and must be 
open to inspection by representative of the Department.
    (7) Each person receiving anhydrous ammonia containing 0.2 per cent 
water by weight may offer for transportation or transport that ammonia 
without performing the prescribed analysis for water content provided:
    (i) The ammonia received was certified as containing 0.2 percent 
water as prescribed in Secs. 172.203(h)(l)(i) and 177.817(a) of this 
subchapter; and
    (ii) The amount of water in the ammonia has not been reduced by any 
means.
    (m) A cargo tank (commonly known as a nurse tank and considered an 
implement of husbandry) transporting anhydrous ammonia, and operated by 
a private carrier exclusively for agricultural purposes does not have to 
meet the specification requirements of part 178 of this subchapter if 
it:
    (1) Has a minimum design pressure of 250 psig and meets the 
requirements of the edition of the ASME code in effect at the time it 
was manufactured and is marked accordingly;
    (2) Is equipped with safety relief valves meeting the requirements 
of CGA pamphlet S1.2;
    (3) Is painted white or aluminum;
    (4) Has capacity of 3,000 gallons or less;
    (5) Is loaded to a filling density no greater than 56 percent;
    (6) Is securely mounted on a farm wagon; and
    (7) Is in conformance with the requirements of part 172 of this 
subchapter except that shipping papers are

[[Page 544]]

not required; and it need not be marked or placarded on one end if that 
end contains valves, fittings, regulators or gauges when those 
appurtenances prevent the markings and placard from being properly 
placed and visible.
    (n) Each MC 330 and MC 331 cargo tank used to transport a flammable 
gas, anhydrous ammonia or hydrogen chloride, refrigerated liquid must 
have each liquid opening equipped in accordance with Sec. 178.337-11 of 
this subchapter.
    (o) Chlorine cargo tanks. Each cargo tank motor vehicle used for the 
transportation of chlorine must meet the requirements in the following:
    (1) Any hose, piping, or tubing used for loading or unloading that 
is mounted or carried on the motor vehicle may not be attached to any 
valve and must be capped at all ends to prevent the entry of moisture, 
except at the time of loading or unloading. Except at the time of 
loading and unloading, the pipe connection of each angle valve must be 
closed with a screw plug which is chained or otherwise fastened to 
prevent misplacement.
    (2) Each chlorine cargo tank angle valve must be tested to be leak 
free at not less than 225 psig using dry air or inert gas before 
installation and thereafter every 2 years when performing the required 
periodic retest in Sec. 180.407(c) of this subchapter. Prior to each 
loading, the cargo tank must be inspected and the angle valves and 
gasketed joints must be examined and tested at a pressure of not less 
than 50 psig to determine that they are not leaking and are in proper 
condition for transportation. Any leaks must be corrected before the 
cargo tank is offered for transportation.
    (3) Excess flow valves on the cargo tank must meet the requirements 
in Sec. 178.337-11(a)(4) of this subchapter.
[29 FR 18743, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.315, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.316  Cryogenic liquids in cylinders.

    (a) General requirements. (1) A cylinder may not be loaded with a 
cryogenic liquid colder than the design service temperature of the 
packaging.
    (2) A cylinder may not be loaded with any material which may combine 
chemically with any residue in the packaging to produce an unsafe 
condition.
    (3) The jacket covering the insulation on a cylinder used to 
transport any flammable cryogenic liquid must be made of steel.
    (4) A valve or fitting made of aluminum with internal rubbing or 
abrading aluminum parts that may come in contact with oxygen in the 
cryogenic liquid form may not be installed on any cylinder used to 
transport oxygen, cryogenic liquid unless the parts are anodized in 
accordance with ASTM Standard B 580.
    (5) An aluminum valve, pipe or fitting may not be installed on any 
cylinder used to transport any flammable cryogenic liquid.
    (6) Each cylinder must be provided with one or more pressure relief 
devices, which must be installed and maintained in compliance with the 
requirements of this subchapter.
    (7) Each pressure relief device must be installed and located so 
that the cooling effect of the contents during venting will not prevent 
effective operation of the device.
    (8) The maximum weight of the contents in a cylinder with a design 
service temperature colder than -320 deg. F. may not exceed the design 
weight marked on the cylinder (see Sec. 178.35 of this subchapter).
    (b) Pressure control systems. Each cylinder containing a cryogenic 
liquid must have a pressure control system that conforms to 
Sec. 173.34(d) and is designed and installed so that it will prevent the 
cylinder from becoming liquid full.
    (c) Specification cylinder requirements and filling limits. 
Specification DOT-4L cylinders (Sec. 178.57 of this subchapter) are 
authorized for the transportation of cryogenic liquids when carried in 
the vertical position as follows:
    (1) For purposes of this section, ``filling density,'' except for 
hydrogen, is

[[Page 545]]

defined as the percent ratio of the weight of lading in the packaging to 
the weight of water that the packaging will hold at 60 deg. F. (1 lb. of 
water=27.737 cubic inches at 60 deg. F.).
    (2) The cryogenic liquids of argon, nitrogen, oxygen, helium and 
neon must be loaded and shipped in accordance with the following table:

----------------------------------------------------------------------------------------------------------------
                                                   Maximum permitted filling density (percent by weight)        
 Pressure control valve setting (maximum -----------------------------------------------------------------------
    start-to-discharge pressure psig)         Air        Argon     Nitrogen     Oxygen      Helium       Neon   
----------------------------------------------------------------------------------------------------------------
45......................................        82.5         133          76         108        12.5         109
75......................................        80.3         130          74         105        12.5         104
105.....................................        78.4         127          72         103        12.5         100
170.....................................        76.2         122          70         100        12.5          92
230.....................................        75.1         119          69          98        12.5          85
295.....................................        73.3         115          68          96        12.5          77
360.....................................        70.7         113          65          93        12.5  ..........
450.....................................        65.9         111          61          91        12.5  ..........
540.....................................        62.9         107          58          88        12.5  ..........
625.....................................        60.1         104          55          86        12.5  ..........
----------------------------------------------------------------------------------------------------------------
Design service temperature ( F.)........        -320        -320        -320        -320        -452        -411
----------------------------------------------------------------------------------------------------------------

    (3) Hydrogen (minimum 95 percent parahydrogen) must be loaded and 
shipped as follows:

------------------------------------------------------------------------
                 Column 1                             Column 2          
------------------------------------------------------------------------
Design service temperature...............  Minus 423 deg. F. or colder. 
Maximum permitted filling density, based   6.7 percent.                 
 on cylinder capacity at minus 423 deg. F                               
 (see Note 1).                                                          
The pressure control valve must be         17 psig.                     
 designed and set to limit the pressure                                 
 in the cylinder to not more than.                                      
------------------------------------------------------------------------


    Note 1: The filling density for hydrogen, cryogenic liquid is 
defined as the percent ratio of the weight of lading in a packaging to 
the weight of water that the packaging will hold at minus 423 deg. F. 
The volume of the packaging at minus 423 deg. F is determined in cubic 
inches. The volume is converted to pounds of water (1 lb. of 
water=27.737 cubic inches).

    (i) Each cylinder must be constructed, insulated and maintained so 
that during transportation the total rate of venting shall not exceed 30 
SCF of hydrogen per hour.
    (ii) In addition to the marking requirements in Sec. 178.35 of this 
subchapter, the total rate of venting in SCF per hour (SCFH) shall be 
marked on the top head or valve protection band in letters at least one-
half inch high as follows: ``VENT RATE**SCFH'' (with the asterisks 
replaced by the number representing the total rate of venting, in SCF 
per hour).
    (iii) Carriage by highway is subject to the conditions specified in 
Sec. 177.840(a) of this subchapter.
    (d) Mixtures of cryogenic liquid. Where charging requirements are 
not specifically prescribed in paragraph (c) of this section, the 
cryogenic liquid must be shipped in packagings and under conditions 
approved by the Associate Administrator for Hazardous Materials Safety.
[Amdt. 173-166, 48 FR 27695, June 16, 1983, as amended by Amdt. 173-166, 
49 FR 24314, June 12, 1984; Amdt. 173-180, 49 FR 42735, Oct. 24, 1984; 
Amdt. 173-201, 52 FR 13041, Apr. 20, 1987: Amdt. 173-250, 61 FR 25942, 
May 23, 1996; Amdt. 173-261, 62 FR 24741, May 6, 1997]



Sec. 173.318  Cryogenic liquids in cargo tanks.

    (a) General requirements. (1) A cargo tank may not be loaded with a 
cryogenic liquid colder than the design service temperature of the 
packaging.
    (2) A cargo tank may not be loaded with any material that may 
combine chemically with any residue in the packaging to produce an 
unsafe condition (see Sec. 178.338-15).
    (3) The jacket covering the insulation on a tank used to transport a 
cryogenic liquid must be made of steel if the cryogenic liquid:
    (i) Is to be transported by vessel (see Sec. 176.76(h)(1) of this 
subchapter); or
    (ii) Is oxygen or a flammable material.
    (4) A valve or fitting made of aluminum with internal rubbing or 
abrading aluminum parts that may come in contact with oxygen in the 
cryogenic liquid form may not be installed on

[[Page 546]]

any cargo tank used to transport oxygen, cryogenic liquid unless the 
parts are anodized in accordance with ASTM Standard B 580.
    (5) An aluminum valve, pipe or fitting, external to the jacket that 
retains lading during transportation may not be installed on any cargo 
tank used to transport oxygen, cryogenic liquid or any flammable 
cryogenic liquid.
    (6) A cargo tank used to transport oxygen, cryogenic liquid must be 
provided with a manhole (see Sec. 178.338-6 of this subchapter).
    (b) Pressure relief systems and pressure control valves--(1) Types 
of pressure relief systems--(i) Tanks in oxygen and flammable cryogenic 
liquid service. Except as otherwise provided in this paragraph, each 
tank in oxygen and flammable cryogenic liquid service must be protected 
by two independent pressure relief systems which are not connected in 
series, namely:
    (A) A primary system of one or more pressure relief valves; and
    (B) A secondary system of one of more frangible discs or pressure 
relief valves. For a tank in carbon monoxide service, the secondary 
system must be pressure relief valves only.
    (ii) Tanks in helium and atmospheric gas (except oxygen) cryogenic 
liquid service. For a tank used in helium and atmospheric gas (except 
oxygen) cryogenic liquid service, the tank must be protected by at least 
one pressure relief system consisting of:
    (A) One or more pressure relief valves; or
    (B) A combination of one or more pressure relief valves and one or 
more frangible discs.
    (2) Capacities of pressure relief systems--(i) Tanks in oxygen or 
flammable cryogenic liquid service. For tanks in oxygen or flammable 
cryogenic liquid service, the primary system and the secondary system of 
pressure relief devices must each have a flow capacity equal to or 
greater than that calculated by the applicable formula in paragraph 
5.3.2 or paragraph 5.3.3 of CGA Pamphlet S-1.2. In addition:
    (A) The primary pressure relief system must have a total flow 
capacity at a pressure not exceeding 120 percent of the tank's design 
pressure.
    (B) The secondary pressure relief system must have a total flow 
capacity at a pressure not exceeding 150 percent of the tank's design 
pressure.
    (C) The flow capacity and rating must be verified and marked by the 
manufacturer of the device in accordance with CGA Pamphlet S-1.2.
    (ii) Tanks in helium and atmospheric gas (except oxygen) cryogenic 
liquid service. For tanks in helium and atmospheric gas (except oxygen) 
cryogenic liquid service, the pressure relief system must have a flow 
capacity equal to or greater than that calculated by the applicable 
formula in paragraphs 5.3.2 or 5.3.3 of CGA Pamphlet S-1.2. If the 
pressure relief system consists of a combination of pressure relief 
valves and frangible discs, the pressure relief valves must have a total 
venting capacity equal to or greater than that calculated by the 
applicable formula in paragraph 4.1.10.1.1 of CGA Pamphlet S-1.2. The 
pressure relief system must have this total flow capacity at a pressure 
not exceeding 150 percent of the tank's design pressure. The flow 
capacity and rating must be verified and marked by the manufacturer of 
the device in accordance with CGA Pamphlet S-1.2.
    (3) Type and construction of pressure relief devices. (i) Each 
pressure relief device must be designed and constructed for a pressure 
equal to or exceeding the tank's design pressure at the coldest 
temperature reasonably expected to be encountered.
    (ii) Pressure relief devices must be either spring-loaded pressure 
relief valves or frangible discs. Pressure relief valves must be of a 
type that automatically open and close at predetermined pressures.
    (4) Setting of pressure relief devices. (i) On a tank used in oxygen 
or flammable cryogenic liquid service, the pressure relief devices must 
perform as follows.
    (A) Each pressure relief valve in the primary relief system must be 
set-to-discharge at a pressure no higher than 110 percent of the tank's 
design pressure.
    (B) Each pressure relief device in the secondary pressure relief 
system must be designed to commence functioning at a pressure no lower 
than 130 percent

[[Page 547]]

and no higher than 150 percent of the tank's design pressure.
    (ii) On a tank used in helium and atmospheric gas (except oxygen) 
cryogenic liquid service, the pressure relief devices in the pressure 
relief system must be designed to commence functioning at no higher than 
150 percent of the tank's design pressure.
    (5) Optional pressure relief devices and pressure control valves. In 
addition to the required pressure relief devices, a cargo tank in 
cryogenic liquid (except carbon monoxide) service may be equipped with 
one or both of the following:
    (i) One or more pressure control valves set at a pressure below the 
tank's design pressure.
    (ii) One or more frangible discs set to function at a pressure not 
less than one and one-half times or more than two times the tank's 
design pressure.
    (6) Maximum filling rate. (i) For a tank used in oxygen and 
flammable cryogenic liquid service, the maximum rate at which the tank 
is filled must not exceed the liquid flow capacity of the primary 
pressure relief system rated at a pressure not exceeding 120 percent of 
the tank's design pressure.
    (ii) On a tank used in helium and atmospheric gas (except oxygen) 
cryogenic liquid service, the maximum rate at which the tank is filled 
must not exceed the liquid flow capacity of the pressure relief valves 
rated at 150 percent of the tank's design pressure.
    (7) Arrangement and location of pressure relief devices. (i) The 
discharge from any pressure relief system must be directed upward and be 
unobstructed to the outside of the protective housing in such a manner 
as to prevent impingement of gas upon the jacket or any structural part 
of the vehicle.
    (ii) Each pressure relief valve must be arranged or protected to 
prevent the accumulation of foreign material between the relief valve 
and the atmospheric discharge opening in any relief piping. The 
arrangement must not impede flow through the device.
    (iii) Each pressure relief valve must be designed and located to 
minimize the possibility of tampering. If the pressure setting or 
adjustment is external to the valve, the valve adjustment must be 
sealed.
    (iv) Each pressure relief device must have direct communication with 
the vapor space of the tank at the midlength of the top centerline.
    (v) Each pressure relief device must be installed and located so 
that the cooling effect of the contents during venting will not prevent 
the effective operation of the device.
    (8) Connections. (i) Each connection to a pressure relief device 
must be of sufficient size to allow the required rate of discharge 
through the pressure relief device. The inlet connection must be not 
less than one-half inch nominal pipe size.
    (ii) A shut-off valve may be installed in a pressure relief system 
only when the required relief capacity is provided at all times.
    (9) Pressure relief devices for piping hose and vacuum-insulated 
jackets. (i) Each portion of connected liquid piping or hose that can be 
closed at both ends must be provided with either a hydrostatic pressure 
relief valve without an intervening shut-off valve, or a check valve 
permitting flow from the pipe or hose into the tank. If used, the relief 
valve must be located so as to prevent its discharge from impinging on 
the tank, piping, or operating personnel.
    (ii) On a vacuum-insulated cargo tank the jacket must be protected 
by a suitable relief device to release internal pressure. The discharge 
area of this device must be at least 0.00024 square inch per pound of 
water capacity of the tank. This relief device must function at a 
pressure not exceeding the internal design pressure of the jacket, 
calculated in accordance with the ASME Code, or 25 psig, whichever is 
less.
    (10) Tank inlet, outlet, pressure relief device and pressure control 
valve markings. (i) Each tank inlet and outlet, except pressure relief 
devices and pressure control valves, must be permanently marked to 
indicate whether it communicates with ``vapor'' or ``liquid'' when the 
tank is filled to the maximum permitted filling density.
    (ii) Each pressure relief valve must be plainly and permanently 
marked with the pressure, in psig, at which it is set-to-discharge, the 
discharge rate of the device in SCF per minute

[[Page 548]]

(SCFM) of free air, and the manufacturer's name or trade name and 
catalog number. The marked set-to-discharge pressure valve must be 
visible with the valve in its installed position. The rated discharge 
capacity of the device must be determined at a pressure of 120 percent 
of the design pressure of the tank.
    (iii) Each pressure control valve must be plainly and permanently 
marked with the pressure, in psig, at which it is set-to-discharge.
    (c) Weight of lading requirements. The weight of a cryogenic liquid 
in the tank must be determined by weighing or by the use of a liquid 
level gauging device authorized in Sec. 178.338-14(a) of this 
subchapter, and may not exceed the lesser of:
    (1) The weight of lading in the tank, based on the water capacity 
stamped on the nameplate (Sec. 178.338-18(a)(4) of this subchapter) and 
the appropriate maximum permitted filling density specified in paragraph 
(f) of this section; or
    (2) The maximum weight of lading for which the cargo tank was 
designed, as marked on the specification plate (see Sec. 178.338-18(b) 
of this subchapter).
    (d) Outage. Except for a cargo tank containing helium, cryogenic 
liquid, a cargo tank offered for transportation must have an outage of 
at least two percent below the inlet of the pressure relief device or 
pressure control valve, under conditions of incipient opening, with the 
tank in a level attitude.
    (e) Temperature. A flammable cryogenic liquid in a cargo tank at the 
start of travel must be at a temperature sufficiently cold that the 
pressure setting of the pressure control valve or the required pressure 
relief valve, whichever is lower, will not be reached in less time than 
the marked rated holding time for the cryogenic liquid (see paragraph 
(g)(3) of this section and Sec. 178.338-9(b) of this subchapter).
    (f) Specification MC-338 (Sec. 178.338 of this subchapter) cargo 
tanks are authorized for the shipment of the following cryogenic liquids 
subject to the following additional requirements:
    (1) For purposes of this section, ``filling density'' is defined as 
the percent ratio of the weight of lading in the tank to the weight of 
water that the tank will hold at the design service temperature (one 
pound of water=27.737 cubic inches at 60 deg. F., or one gallon of 
water=231 cubic inches at 60 deg. F. and weighs 8.32828 pounds).
    (2) Air, argon, helium, nitrogen, and oxygen, cryogenic liquids must 
be loaded and shipped in accordance with the following table:

                                                 Pressure Control Valve Setting or Relief Valve Setting                                                 
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                    Maximum permitted filling density (percent by weight)                               
 Maximum set-to-discharge pressure  --------------------------------------------------------------------------------------------------------------------
               (psig)                          Air                    Argon                  Helium                Nitrogen                Oxygen       
--------------------------------------------------------------------------------------------------------------------------------------------------------
26.................................  ......................  ......................  12.5.................  .....................  .....................
30.................................  80.3..................  129...................  12.5.................  74...................  105                  
40.................................  79.2..................  ......................  12.5.................  .....................  .....................
50.................................  78.0..................  ......................  12.5.................  .....................  .....................
55.................................  77.3..................  125...................  12.5.................  71...................  102                  
60.................................  76.9..................  ......................  12.5.................  .....................  .....................
80.................................  75.3..................  ......................  12.5.................  .....................  .....................
85.................................  75.1..................  121...................  12.5.................  .....................  99                   
100................................  73.0..................  ......................  12.5.................  .....................  .....................
105................................  73.7..................  ......................  12.5.................  67...................  .....................
120................................  72.2..................  ......................  12.5.................  .....................  .....................
140................................  71.4..................  ......................  12.5.................  .....................  .....................
145................................  70.9..................  115...................  12.5.................  64...................  94                   
180................................  68.3..................  ......................  12.5.................  .....................  .....................
200................................  67.3..................  110...................  12.5.................  61...................  91                   
250................................  63.3..................  106...................  12.5.................  57...................  87                   
275................................  62.3..................  105...................  12.5.................  56...................  86                   
325................................  59.4..................  101...................  .....................  53...................  83                   
--------------------------------------------------------------------------------------------------------------------------------------------------------
Design service temperature.........  -320 F................  -320 F................  -452 F...............  -320 F...............  -320 F               

[[Page 549]]

                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (3) Carbon monoxide, hydrogen (minimum 95 percent para-hydrogen), 
ethylene, and methane or natural gas, cryogenic liquids must be loaded 
and shipped in accordance with the following table:

                             Pressure Control Valve Setting or Relief Valve Setting                             
----------------------------------------------------------------------------------------------------------------
                                               Maximum permitted filling density (percent by weight)            
    Maximum set-to-discharge     -------------------------------------------------------------------------------
         pressure (psig)                                                                      Methane or natural
                                    Carbon monoxide        Ethylene            Hydrogen               gas       
----------------------------------------------------------------------------------------------------------------
13..............................  ..................  ..................  6.6...............  ..................
15..............................  75.0..............  ..................  6.6...............  40.5              
17..............................  74.0..............  ..................  6.6...............  ..................
20..............................  ..................  53.5..............  ..................  40.0              
25..............................  73.0..............  ..................  ..................  ..................
30..............................  72.0..............  52.7..............  6.3...............  39.1              
35..............................  ..................  ..................  ..................  ..................
40..............................  ..................  52.0..............  ..................  38.6              
45..............................  71.5..............  ..................  ..................  ..................
50..............................  ..................  51.4..............  6.0...............  38.2              
55..............................  ..................  ..................  ..................  ..................
60..............................  ..................  50.8..............  ..................  ..................
70..............................  ..................  50.2..............  5.7...............  37.5              
90..............................  ..................  49.2..............  ..................  ..................
95..............................  ..................  ..................  ..................  ..................
100.............................  ..................  48.4..............  5.4...............  36.6              
115.............................  ..................  48.2..............  ..................  ..................
125.............................  ..................  ..................  5.0...............  ..................
150.............................  ..................  ..................  4.5...............  ..................
175.............................  62.5..............  45.8..............  ..................  ..................
285.............................  56.0..............  ..................  ..................  ..................
----------------------------------------------------------------------------------------------------------------
Design service temperature......  -320 F............  -155 F............  -423 F............  -260 F            
----------------------------------------------------------------------------------------------------------------

    (4) Mixtures of cryogenic liquid. Where charging requirements are 
not specifically prescribed in this paragraph (f), the cryogenic liquid 
must be shipped in packagings and under conditions approved by the 
Associate Administrator for Hazardous Materials Safety.
    (g) One-way travel time; marking. The jacket of a cargo tank to be 
used to transport a flammable cryogenic liquid must be marked on its 
right side near the front, in letters and numbers at least two inches 
high, ``One-Way-Travel-Time ---- hrs.'', with the blank filled in with a 
number indicating the one-way travel time (OWTT), in hours, of the cargo 
tank for the flammable cryogenic liquid to be transported. A cargo tank 
that is partially unloaded at one or more locations must have additional 
marking ``One-Way-Travel-Time ---- hrs. ---- psig to ---- psig at ---- 
percent filling density,'' with the second blank filled in with the 
pressure existing after partial unloading and the third blank filled in 
with the set-to-discharge pressure of the control valve or pressure 
relief valve, and the fourth blank with the filling density following 
partial unloading. Multiple OWTT markings for different pressure levels 
are permitted. The abbreviation ``OWTT'' may be used in place of the 
words ``One-way-travel-time'' in the marking required by this paragraph.
    (1) OWTT is based on the marked rated holding time (MRHT) of the 
cargo tank for the cryogenic liquid to be transported in the cargo tank. 
If the MRHT for the flammable cryogenic liquid is not displayed on or 
adjacent to the specification plate, this MRHT may be derived.
    (2) The MRHT is converted to OWTT, in hours, as follows:
    (i) For a tank with an MRHT of 72 hours or less,

OWTT=(MRHT-24)/2

    (ii) For a tank with an MRHT greater than 72 hours,

OWTT=MRHT-48
    (3) Each cargo tank motor vehicle used to transport a flammable 
cryogenic liquid must be examined after each shipment to determine its 
actual holding time. The record required by Sec. 177.840(h) of this 
subchapter may be

[[Page 550]]

used for this determination. If the examination indicates that the 
actual holding time of the cargo tank, after adjustment to reflect an 
average ambient temperature of 85  deg.F, is less than 90 percent of the 
marked rated holding time (MRHT) for the cryogenic liquid marked on the 
specification plate or adjacent thereto (see Sec. 178.338-18(b) of this 
subchapter), the tank may not be refilled with any flammable cryogenic 
liquid until it is restored to its marked rated holding time value or it 
is re-marked with the actual marked rated holding time determined by 
this examination. If the name of the flammable cryogenic liquid that was 
transported and its marked rated holding time is not displayed on or 
adjacent to the specification plate, this requirement may be met by 
deriving the MRHT of the cargo tank for that flammable cryogenic liquid 
and comparing that derived MRHT with the actual holding time after 
adjustment.
[Amdt. 173-166, 48 FR 27696, June 16, 1983]

    Editorial Note: For Federal Register citations affecting 
Sec. 173.318, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 173.319  Cryogenic liquids in tank cars.

    (a) General requirements. (1) A tank car containing a flammable 
cryogenic liquid may not be shipped unless it was loaded by, or with the 
consent of, the owner of the tank car.
    (2) The amount of flammable cryogenic liquid loaded into a tank car 
must be determined, either by direct measurement or by calculation based 
on weight, to verify that the tank has not been filled to a level in 
excess of the limits specified in paragraph (d)(2) of this section. The 
weight of any flammable cryogenic liquid loaded, except hydrogen, must 
be checked by use of scales after disconnecting the loading line.
    (3) Whenever a tank car containing any flammable cryogenic lading is 
not received by the consignee within 20 days from the date of shipment, 
the shipper of the lading shall notify the Bureau of Explosives.
    (4) A tank car may not be loaded with any flammable cryogenic 
liquid:
    (i) That may combine chemically with any residue in the tank to 
produce an unsafe condition,
    (ii) That is colder than the design service temperature of the tank,
    (iii) If the average daily pressure rise in the tank exceeded 3 psi 
during the prior shipment,
    (iv) Unless it is marked with the name of contents, in accordance 
with Sec. 172.330 of this subchapter.
    (b) When a tank car containing a flammable cryogenic liquid is 
offered for transportation:
    (1) At least 0.5 percent outage must be provided below the inlet of 
the pressure relief or pressure control valve at the start-to-discharge 
pressure setting of the valve, with the tank car in a level attitude, 
and
    (2) The absolute pressure in the annular space must be less than 75 
microns of mercury.
    (c) Temperature. A flammable cryogenic liquid must be loaded into a 
tank car at such a temperature that the average daily pressure rise 
during transportation will not exceed 3 psi (see paragraph (a)(4)(iii) 
of this section and Sec. 173.31(c)(13)).
    (d) A Class DOT-113 tank car is authorized for the shipment of the 
following cryogenic liquids subject to the following additional 
requirements:
    (1) For purposes of this section, ``filling density'' is defined as 
the percent ratio of the weight of lading in the tank to the weight of 
water that the tank will hold at the design service temperature (one 
pound of water

= 27.737 cubic inches at 60 deg. F., or one gallon of water = 231 cubic 
inches at 60 deg. F. and weighs 8.32828 pounds).
    (2) Ethylene, and hydrogen (minimum 95 percent parahydrogen), 
cryogenic liquids must be loaded and shipped in accordance with the 
following table:

                             Pressure Control Valve Setting or Relief Valve Setting                             
----------------------------------------------------------------------------------------------------------------
                                               Maximum permitted filling density (percent by weight)            
   Maximum start-to-discharge    -------------------------------------------------------------------------------
         pressure (psig)               Ethylene            Ethylene            Ethlyene            Hydrogen     
----------------------------------------------------------------------------------------------------------------
17..............................  ..................  ..................  ..................  6.60.             

[[Page 551]]

                                                                                                                
45..............................  52.8..............  ..................  ..................  ..................
75..............................  ..................  51.1..............  51.1..............  ..................
Maximum pressure when offered     10 psig...........  10 psig...........  20 psig...........  ..................
 for transportation.                                                                                            
Design service temperature......  Minus 260 deg. F..  Minus 260 deg. F..  Minus 155 deg. F..  Minus 423 deg. F. 
Specification (see Sec.           113D60W...........  113C120W..........  113D120W..........  113A175W.         
 173.31(a)(9)).                   113C60W...........                                          113A60W.          
----------------------------------------------------------------------------------------------------------------

    (e) Special requirements for class DOT 113 tank cars. (1) A class 
DOT-113 tank car need not be periodically pressure tested; however, each 
shipment must be monitored to determine the average daily pressure rise 
in the tank car. If the average daily pressure rise during any shipment 
exceeds 0.2 Bar (3 psi) per day, the tank must be tested for thermal 
integrity prior to any subsequent shipment.
    (2) Thermal integrity test. When required by paragraph (e)(1) of 
this section, either of the following thermal integrity tests may be 
used:
    (i) Pressure rise test. The pressure rise in the tank may not exceed 
0.34 Bar (5 psi) in 24 hours. When the pressure rise test is performed, 
the absolute pressure in the annular space of the loaded tank car may 
not exceed 75 microns of mercury at the beginning of the test and may 
not increase more than 25 microns during the 24-hour period; or
    (ii) Calculated heat transfer rate test. The insulation system must 
be performance tested as prescribed in Sec. 179.400-4 of this 
subchapter. When the calculated heat transfer rate test is performed, 
the absolute pressure in the annular space of the loaded tank car may 
not exceed 75 microns of mercury at the beginning of the test and may 
not increase more than 25 microns during the 24-hour period. The 
calculated heat transfer rate in 24 hours may not exceed:
    (A) 120 percent of the appropriate standard heat transfer rate 
specified in Sec. 179.401-1 of this subchapter, for DOT-113A60W and DOT-
113C120W tank cars;
    (B) 122.808 joules (0.1164 Btu/day/lb.) of inner tank car water 
capacity, for DOT-113A175W tank cars;
    (C) 345.215 joules (0.3272 Btu/day/lb.) of inner tank car water 
capacity, for DOT-113C60W and 113D60W tank cars; or
    (D) 500.09 joules (0.4740 Btu/day/lb.) of inner tank car water 
capacity, for DOT-113D120W tank cars.
    (3) A tank car that fails a test prescribed in paragraph (e)(2) of 
this section must be removed from hazardous materials service. A tank 
car removed from hazardous materials service because it failed a test 
prescribed in paragraph (e)(2) of this section may not be used to 
transport a hazardous material unless the tank car conforms to all 
applicable requirements of this subchapter.
    (4) Each frangible disc must be replaced with a new frangible disc 
every 12 months, and the replacement date must be marked on the car near 
the pressure relief valve information.
    (5) Pressure relief valves and alternate pressure relief valves must 
be tested every five years. The start-to-discharge pressure and vapor 
tight pressure requirements for the pressure relief valves must be as 
specified in Sec. 179.401-1 of this subchapter. The alternate pressure 
relief device values specified in Sec. 179.401-1 of this subchapter for 
a DOT-113C120W tank car apply to a DOT-113D120W tank car.

(49 U.S.C. 1803, 1804, 1808; 49 CFR 1.53, app. A to part 1)

[Amdt. 173-166, 48 FR 27698, June 16, 1983, as amended by Amdt. 173-245, 
Sept. 21, 1995]



Sec. 173.320  Cryogenic liquids; exceptions.

    (a) Atmospheric gases and helium, cryogenic liquids, in Dewar 
flasks, insulated cylinders, insulated portable tanks, insulated cargo 
tanks, and insulated tank cars, designed and constructed so that the 
pressure in such packagings will not exceed 25.3 psig

[[Page 552]]

under ambient temperature conditions during transportation are not 
subject to the requirements of this subchapter when transported by motor 
vehicle or railcar except as specified in paragraphs (a)(1), (a)(2), and 
(a)(3) of this section.
    (1) Sections 171.15 and 171.16 of this subchapter pertaining to the 
reporting of incidents, not including a release that is the result of 
venting through a pressure control valve, or the neck of the Dewar 
flask.
    (2) Subparts A, B, C, and D of part 172, (Secs. 174.24 for rail and 
177.817 for highway) and in addition, part 172 in its entirety for 
oxygen.
    (3) Subparts A and B of part 173, and Secs. 174.1 and 177.800, 
177.804, and 177.823 of this subchapter.
    (b) The requirements of this subchapter do not apply to atmospheric 
gases and helium:
    (1) During loading and unloading operations (pressure rises may 
exceed 25.3 psig); or
    (2) When used in operation of a process system; such as a 
refrigeration system (pressure may exceed 25.3 psig).
    (c) For transportation aboard aircraft, see Sec. 171.11 of this 
subchapter.
[Amdt. 173-201, 52 FR 13043, Apr. 20, 1987, as amended at 62 FR 51561, 
Oct. 1, 1997]



Sec. 173.321  Ethylamine.

    Ethylamine must be packaged as follows:
    (a) In 1A1 drums which meet Packing Group I performance level 
requirements.
    (b) In specification cylinders as prescribed for any compressed gas 
except acetylene.
[Amdt. 173-224, 55 FR 52667, Dec. 21, 1990]



Sec. 173.322  Ethyl chloride.

    Ethyl chloride must be packaged in any of the following single or 
combination non-bulk packagings which meet Packing Group I performance 
level requirements:
    (a) In 4C1, 4C2, 4D or 4F wooden boxes with glass, earthenware, or 
metal inner receptacles not over 500 g (17.6 ounces) capacity each;
    (b) In 4G fiberboard boxes with glass, earthenware, or metal inner 
receptacles not over 500 g (17.6 ounces) capacity each. Outer packagings 
may not exceed 30 kg (66 pounds) gross weight;
    (c) In 1A1 drums of not over 100 L (26 gallons) capacity each; or
    (d) In specification cylinders as prescribed for any compressed gas 
except acetylene.
[Amdt. 173-224, 55 FR 52667, Dec. 21, 1990]



Sec. 173.323  Ethylene oxide.

    (a) For packaging ethylene oxide in non-bulk packagings, silver 
mercury or any of its alloys or copper may not be used in any part of a 
packaging, valve, or other packaging appurtenance if that part, during 
normal conditions of transportation, may come in contact with ethylene 
oxide liquid or vapor. Copper alloys may be used only where gas mixtures 
do not contain free acetylene at any concentration that will form copper 
acetylene. All packaging and gaskets must be constructed of materials 
which are compatible with ethylene oxide and do not lower the auto-
ignition temperature of ethylene oxide.
    (b) Ethylene oxide must be packaged in one of the following:
    (1) In 4G fiberboard boxes with inner glass ampoules or vials. Total 
quantity of ethylene oxide may not exceed 100 grams (3.5 ounces) per 
package. The completed package must be capable of passing Packing Group 
I performance tests.
    (2) In 4G fiberboard boxes constructed with top and bottom pads and 
perimeter liner. Inner packagings must be aluminum receptacles of no 
more than 135 g (4.8 ounces) capacity cushioned with incombustible 
material. No more than 12 receptacles may be packed in one box, and no 
more than 10 boxes may be overpacked under the provisions of Sec. 173.25 
of this part. Each completed package must be capable of passing Packing 
Group I performance tests.
    (3) In 4C1, 4C2, 4D or 4F wooden boxes or 4G fiberboard boxes with 
inner metal receptacles of no more than 340 g (12 ounces) capacity. The 
metal receptacle must be capable of withstanding no less than a 1241.1 
kPa (180 psig) burst pressure. No more than 12 receptacles may be packed 
in one box, and each receptacle may not be liquid full

[[Page 553]]

below 82  deg.C (180  deg.F). Each inner receptacle must be insulated 
and equipped with a relief device of the fusible plug type with yield 
temperature of 69  deg.C to 77  deg.C (156  deg.F to 171  deg.F). The 
capacity of relief device and insulation must be such that the charged 
receptacle will not explode when tested by the method described in CGA 
Pamphlet C-14 or other equivalent method. Each completed package must be 
capable of passing all Packing Group I performance tests.
    (4) In specification cylinders, as authorized for any compressed gas 
except acetylene. Pressurizing valves and insulation are required for 
cylinders over 4 L (1 gallon) capacity. Eductor tubes must be provided 
for cylinders over 19 L (5 gallons) capacity. Cylinders must be seamless 
or welded steel (not brazed) with a nominal capacity of no more than 115 
L (30 gallons) and may not be liquid full below 82  deg.C (180  deg.F). 
Before each refilling, each cylinder must be tested for leakage at no 
less than 103.4 kPa (15 psig) pressure. In addition, each cylinder must 
be equipped with a fusible type relief device with yield temperature of 
69  deg.C to 77  deg.C (157  deg.F to 170  deg.F). The capacity of the 
relief device and the effectiveness of the insulation must be such that 
the charged cylinder will not explode when tested by the method 
described in CGA Pamphlet C-14 or other equivalent method.
    (5) In 1A1 steel drums of no more than 231 L (61 gallons) and 
meeting Packing Group I performance standards. The drum must be lagged, 
of all welded construction with the inner shell having a minimum 
thickness of 1.7 mm (0.068 inches) and the outer shell having a minimum 
thickness of 2.4 mm (0.095 inches). Drums must be capable of 
withstanding a hydrostatic test pressure of 690 kPa (100 psig). Lagging 
must be of sufficient thickness so that the drum, when filled with 
ethylene oxide and equipped with the required pressure relief device, 
will not rupture when exposed to fire. The drum may not be liquid full 
below 85  deg.C (185  deg.F), and must be marked ``THIS END UP'' on the 
top head. Before each refilling, each drum must be tested for leakage at 
no less than 103 kPa (15 psig) pressure. Each drum must be equipped with 
a fusible type relief device with yield temperature of 69  deg.C to 77 
deg.C (157  deg.F to 170  deg.F), and the capacity of the relief device 
must be such that the filled drum is capable of passing, without 
rupture, the test method described in CGA Pamphlet C-14 or other 
equivalent method.
    (c) When Sec. 172.101 of this subchapter specifies that a hazardous 
material be packaged under this section, only the following bulk 
packagings are authorized, subject to the requirements of subparts A and 
B of this part, the special provisions specified in Column 7 of the 
Sec. 172.101 Table, and paragraphs (d) through (j) of this section:
    (1) Tank cars. Class DOT 105J tank cars: Notwithstanding the 
requirements of Sec. 173.31(c), each tank car must have a tank test 
pressure of at least 20.7 Bar (300 psi) no later than July 1, 2006.
    (2) Cargo tanks. Specification MC 330 and MC 331 cargo tank motor 
vehicles.
    (3) Portable tanks. DOT 51 portable tanks.
    (d) The pressure relief devices must be set to function at 517 kPa 
(75 psig). Portable tanks fitted with non-reclosing devices made and in 
use prior to December 31, 1987, may continue to be used in ethylene 
oxide service.
    (e) In determining outage, consideration must be given to the lading 
temperature and solubility of inert gas padding in ethylene oxide as 
well as the partial pressure exerted by the gas padding.
    (f) Each tank, loaded or empty, must be padded with dry nitrogen or 
other suitable inert gas of sufficient quantity to render the vapor 
space of the tank nonflammable up to 41  deg.C (105  deg.F). The gas 
used for padding must be free of impurities which may cause the ethylene 
oxide to polymerize, decompose or undergo other violent chemical 
reaction.
    (g) Copper, silver, mercury, magnesium or their alloys may not be 
used in any part of the tank or appurtenances that are normally in 
contact with the lading.
    (h) Neoprene, natural rubber and asbestos gaskets are prohibited. 
All packing and gaskets must be made of materials which do not react 
with or lower the autoignition temperature of the lading.

[[Page 554]]

    (i) Each tank must be insulated with cork (at least 10 cm (4 inches) 
thick), or mineral wool, fiberglass or other suitable insulation 
material of sufficient thickness so that the thermal conductance at 16 
deg.C (60  deg.F) is not more than 0.075 Btu per hour per square foot 
per degree F. temperature differential. Portable tanks made and in use 
prior to December 31, 1987 equipped with fusible plugs instead of a 
safety relief valve or frangible disc, must have sufficient insulation 
so that the tank as filled for shipment will not rupture in a fire. The 
insulation on portable tanks or cargo tank motor vehicles must be 
protected with a steel jacket at least 2.54 mm (0.100 inch) thick, or as 
required by the specification.
    (j) Tank car tanks built after December 30, 1971 must be equipped 
with a thermometer well.
[Amdt. 173-224, 55 FR 52667, Dec. 21, 1990, as amended at 56 FR 66279, 
Dec. 20, 1991; Amdt. 173-236, 58 FR 50237, Sept. 24, 1993; Amdt. 173-
234, 58 FR 51532, Oct. 1, 1993; Amdt. 173-145, 60 FR 49076, Sept. 21, 
1995]



Sec. 173.334  Organic phosphates mixed with compressed gas.

    Hexaethyl tetraphosphate, parathion, tetraethyl dithio 
pyrophosphate, tetraethyl pyrophosphate, or other Division 6.1 organic 
phosphates (including a compound or mixture), may be mixed with a non-
flammable compressed gas. This mixture must not contain more than 20 
percent by weight of organic phosphate and must be packaged in 
specification 3A240, 3AA240, 3B240, 4A240, 4B240, 4BA240, or 4BW240 
cylinders meeting the following requirements.
    (a) Each cylinder may be charged with not more than 5 kg (11.0 
pounds) of the mixture, to a maximum filling density of not more than 80 
percent of the water capacity;
    (b) Each cylinder must be charged in compliance with Sec. 173.301 
(e) and (f);
    (c) No cylinder may be equipped with an eduction tube or a fusible 
plug;
    (d) No cylinder may be equipped with any valve unless the valve is a 
type approved by the Associate Administrator for Hazardous Materials 
Safety;
    (e) Cylinders must be overpacked in a box so arranged to protect 
each valve or other closing device from damage. Except as provided in 
paragraph (f) of this section, no more than four cylinders may be packed 
in a box. Each box with its closing device protection must be 
sufficiently strong to protect all parts of each inside cylinder from 
deformation or breakage if the completed package is dropped 1.8 m (5.9 
feet) onto solid concrete and impacted at the package's weakest point.
    (f) Cylinders may be packed in strong wooden boxes with valves or 
other closing devices protected from injury, with not more than twelve 
cylinders in one outside wooden box. An outer fiberboard box may be used 
when not more than four such cylinders are to be shipped in one 
packaging. Valves must be adequately protected. Box and valve protection 
must be of strength sufficient to protect all parts of inner packagings 
and valves from deformation or breakage resulting from a drop of at 
least 1.8 m (5.9 feet) onto a concrete floor, impacting at the weakest 
point.
[Amdt. 173-224, 55 FR 52668, Dec. 21, 1990]



Sec. 173.335  Gas generator assemblies.

    Gas generator assemblies (aircraft) containing liquefied non-
flammable, non-toxic gas and a solid propellant cartridge must be 
packaged as follows:
    (a) The gas must be packaged in specification steel cylinders 
authorized for any compressed gas except acetylene not exceeding 10.5 L 
(2.8 gallons) internal volume and having a minimum design burst pressure 
of 19,700 kPa (2,857 psi);
    (b) Fittings must be protected against damage under conditions 
normal incident to transport, any trigger must be fitted with a safety 
locking pin, and a non-propulsive plug must be installed on the 
discharge tube; and
    (c) Each complete unit must be individually and tightly packed to 
prevent movement in wooden boxes (4C1 or 4C2), plywood boxes (4D), 
reconstituted wood boxes (4F), fiberboard boxes (4G), or plastic boxes, 
(4H1and 4H2) of Packing Group II performance level, or in the original 
manufacturer's transit box.
[Amdt. 173-224, 55 FR 52669, Dec. 21, 1990]

[[Page 555]]



Sec. 173.336  Nitrogen dioxide, liquefied, or dinitrogen tetroxide, liquefied.

    Nitrogen dioxide, liquefied, or dinitrogen tetroxide, liquefied, 
must be packaged in specification cylinders as follows:
    (a) As prescribed in Sec. 173.192, or
    (b) Specification 3A480, 3AA480, 3AL1800, or 3E1800 metal cylinders, 
with valves removed, are authorized. Each valve opening must be closed 
by means of a solid metal plug with tapered thread properly luted to 
prevent leakages; valve protection cap must be used and be at least 4.76 
mm (0.187 inches) thick gas-tight, with 4.76 mm (0.187 inches) faced 
seat for gasket and with United States standard form thread. 
Transportation in 3AL cylinders is authorized only by highway or rail. 
Each cylinder must be cleaned in compliance with the requirements of 
Federal Specification RR-C-901c, paragraphs 3.7.2 and 3.8.2. Cleaning 
agents equivalent to those specified in RR-C-901b may be used; however, 
any cleaning agent must not be capable of reacting with oxygen. One 
cylinder selected at random from a group of 200 or less cleaned at the 
same time must be tested for oil contamination in accordance with 
Specification RR-C-901b paragraph 4.4.2.3 and meet the standard of 
cleanliness specified therein.
[Amdt. 173-224, 55 FR 52669, Dec. 21, 1990, as amended at 57 FR 45464, 
Oct. 1, 1992]



Sec. 173.337  Nitric oxide.

    Nitric oxide must be packed in Specification 3A1800, 3AA1800, 
3E1800, or 3AL1800 cylinders charged to a pressure of not more than 
5,170 kPa (750 psi) at 21  deg.C (70  deg.F). Cylinders must be equipped 
with a valve of stainless steel and valve seat of material which will 
not be deteriorated by contact with nitric oxide or nitrogen dioxide. 
Cylinders or valves may not be equipped with pressure relief devices of 
any type. Valve outlets must be sealed by a solid threaded cap or plug 
and an inert gasketing material. In addition--
    (a) Specification 3E1800 cylinders must be overpacked in strong 
wooden boxes of such design as to protect valves from injury or 
accidental functioning under conditions incident to transportation. Each 
overpack must conform to Sec. 173.25.
    (b) Specification 3A, 3AA, and 3AL cylinders must have their valves 
protected by metal caps or other equally protective guards securely 
attached to the cylinders and be of sufficient strength to protect the 
valves from injury during transit, or by overpacking in strong wooden 
boxes of such design as to protect valves from injury or accidental 
functioning under conditions incident to transportation. Each overpack 
must conform to Sec. 173.25. Transportation in 3AL cylinders is 
authorized only by highway or rail.
    (c) Each cylinder must be cleaned in compliance with the 
requirements of Federal Specification RR-C-901C, paragraphs 3.7.2 and 
3.8.2. Cleaning agents equivalent to those specified in RR-C-901C may be 
used; however, any cleaning agent must not be capable of reacting with 
oxygen. One cylinder selected at random from a group of 200 or less 
cleaned at the same time must be tested for oil contamination in 
accordance with Specification RR-C-901C paragraph 4.4.2.3 and meet the 
standard of cleanliness specified therein.
[Amdt. 173-224, 55 FR 52669, Dec. 21, 1990]



Sec. 173.338  Tungsten hexafluoride.

    Tungsten hexafluoride must be packed in specification 3A, 3AA, 3BN, 
or 3E (Secs. 178.36, 178.37, 178.39, 178.42 of this subchapter) 
cylinders. Cylinders must be equipped with a valve protection cap or be 
packed in a strong outside container complying with the provisions of 
Sec. 173.40. Outlets of any valves must be capped or plugged. As an 
alternative, the cylinder opening may be closed by the use of a metal 
plug. Specification 3E cylinders must be shipped in an overpack that 
complies with the provisions of Sec. 173.40.
][Amdt. 173-224, 55 FR 52669, Dec. 21, 1990]



Sec. 173.340  Tear gas devices.

    (a) Packagings for tear gas devices must be approved prior to 
initial transportation by the Associate Administrator for Hazardous 
Materials Safety.
    (b) Tear gas devices may not be assembled with, or packed in the 
same packaging with, mechanically- or manually-operated firing, 
igniting,

[[Page 556]]

bursting, or other functioning elements unless of a type and design 
which has been approved by the Associate Administrator for Hazardous 
Materials Safety.
    (c) Tear gas grenades, tear gas candles, and similar devices must be 
packaged in one of the following packagings conforming to the 
requirements of part 178 of this subchapter at the Packing Group II 
performance level:
    (1) In UN 4C1, 4C2, 4D, or 4F metal-strapped wooden boxes. 
Functioning elements not assembled in grenades or devices must be in a 
separate compartment of these boxes, or in inner or separate outer 
boxes, UN 4C1, 4C2, 4D, or 4F, and must be so packed and cushioned that 
they may not come in contact with each other or with the walls of the 
box during transportation. Not more than 50 tear gas devices and 50 
functioning elements must be packed in one box, and the gross weight of 
the outer box may not exceed 35 kg (77 pounds).
    (2) In a UN 1A2 metal drum. Functioning elements must be packed in a 
separate inner packaging or compartment. Not more than 24 tear gas 
devices and 24 functioning elements must be packed in one outer drum, 
and the gross weight of the drum may not exceed 35 kg (77 pounds).
    (3) In a UN 4G fiberboard box with inside tear gas devices meeting 
Specifications 2P or 2Q. Each inside packaging must be placed in 
fiberboard tubes fitted with metal ends or a fiber box with suitable 
padding. Not more than 30 inner packagings must be packed in one outer 
box, and the gross weight of the outer box may not exceed 16 kg (35 
pounds).
    (4) In other packagings of a type or design which has been approved 
by the Associate Administrator for Hazardous Materials Safety.
    (d) Tear gas devices may be shipped completely assembled when 
offered by or consigned to the U.S. Department of Defense, provided the 
functioning elements are so packed that they cannot accidentally 
function. Outer packagings must be UN 4C1, 4C2, 4D, or 4F metal-strapped 
wooden boxes.
[Amdt. 173-224, 55 FR 52669, Dec. 21, 1990]



                          Subpart H--[Reserved]



               Subpart I--Class 7 (Radioactive) Materials

    Source:  Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, unless 
otherwise noted.



Sec. 173.401  Scope.

    (a) This subpart sets forth requirements for the packaging and 
transportation of Class 7 (radioactive) materials by offerors and 
carriers subject to this subchapter. The requirements prescribed in this 
subpart are in addition to, not in place of, other requirements set 
forth in this subchapter for Class 7 (radioactive) materials and those 
of the Nuclear Regulatory Commission in 10 CFR Part 71.
    (b) This subpart does not apply to:
    (1) Class 7 (radioactive) materials produced, used, transported, or 
stored within an establishment other than during the course of 
transportation, including storage in transportation.
    (2) Class 7 (radioactive) materials contained in a medical device, 
such as a heart pacemaker, which is implanted in a human being or live 
animal.
    (3) Class 7 (radioactive) materials that have been injected into, 
ingested by, or are otherwise placed into, and are still in, human 
beings or live animals.



Sec. 173.403  Definitions.

    For purposes of this subpart--
    A1 means the maximum activity of special form Class 7 
(radioactive) material permitted in a Type A package.
    A2 means the maximum activity of Class 7 (radioactive) 
material, other than special form, LSA or SCO, permitted in a Type A 
package. These values are either listed in Sec. 173.435 or derived in 
accordance with the procedure prescribed in Sec. 173.433.
    Class 7 (radioactive) material. See the definition of Radioactive 
material in this section.

[[Page 557]]

    Closed transport vehicle means a transport vehicle or conveyance 
equipped with a securely attached exterior enclosure that during normal 
transportation restricts the access of unauthorized persons to the cargo 
space containing the Class 7 (radioactive) materials. The enclosure may 
be either temporary or permanent, and in the case of packaged materials 
may be of the ``see-through'' type, and must limit access from top, 
sides, and bottom.
    Containment system means the assembly of components of the packaging 
intended to retain the radioactive contents during transportation.
    Conveyance means:
    (1) For transport by public highway or rail: any transport vehicle 
or large freight container;
    (2) For transport by water: any vessel, or any hold, compartment, or 
defined deck area of a vessel including any transport vehicle on board 
the vessel; and
    (3) For transport by aircraft, any aircraft.
    Design means the description of a special form Class 7 (radioactive) 
material, a package, packaging, or LSA-III, that enables those items to 
be fully identified. The description may include specifications, 
engineering drawings, reports showing compliance with regulatory 
requirements, and other relevant documentation.
    Exclusive use (also referred to in other regulations as ``sole use'' 
or ``full load'') means sole use by a single consignor of a conveyance 
for which all initial, intermediate, and final loading and unloading are 
carried out in accordance with the direction of the consignor or 
consignee. The consignor and the carrier must ensure that any loading or 
unloading is performed by personnel having radiological training and 
resources appropriate for safe handling of the consignment. The 
consignor must issue specific instructions in writing, for maintenance 
of exclusive use shipment controls, and include them with the shipping 
paper information provided to the carrier by the consignor.
    Fissile material means plutonium-238, plutonium-239, plutonium-241, 
uranium-233, uranium-235, or any combination of these radionuclides. The 
definition does not apply to unirradiated natural uranium and depleted 
uranium, and natural uranium or depleted uranium that has been 
irradiated in a thermal reactor. Certain additional exceptions are 
provided in Sec. 173.453.
    Fissile material, controlled shipment means any shipment that 
contains one or more packages that have been assigned, in accordance 
with Sec. 173.457, nuclear criticality control transport indices greater 
than 10.
    Freight container means a reusable container having a volume of 1.81 
cubic meters (64 cubic feet) or more, designed and constructed to permit 
its being lifted with its contents intact and intended primarily for 
containment of packages in unit form during transportation. A ``small 
freight container'' is one which has either one outer dimension less 
than 1.5 meters (4.9 feet) or an internal volume of not more than 3.0 
cubic meters (106 cubic feet). All other freight containers are 
designated as ``large freight containers.''
    Highway route controlled quantity means a quantity within a single 
package which exceeds:
    (1) 3,000 times the A1 value of the radionuclides as 
specified in Sec. 173.435 for special form Class 7 (radioactive) 
material;
    (2) 3,000 times the A2 value of the radionuclides as 
specified in Sec. 173.435 for normal form Class 7 (radioactive) 
material; or
    (3) 1,000 TBq (27,000 Ci), whichever is least.
    Limited quantity of Class 7 (radioactive) material means a quantity 
of Class 7 (radioactive) material not exceeding the materials package 
limits specified in Sec. 173.425 and conforming with requirements 
specified in Sec. 173.421.
    Low Specific Activity (LSA) material means Class 7 (radioactive) 
material with limited specific activity which satisfies the descriptions 
and limits set forth below. Shielding materials surrounding the LSA 
material may not be considered in determining the estimated average 
specific activity of the package contents. LSA material must be in one 
of three groups:
    (1) LSA-I.
    (i) Ores containing only naturally occurring radionuclides (e.g., 
uranium,

[[Page 558]]

thorium) and uranium or thorium concentrates of such ores; or
    (ii) Solid unirradiated natural uranium or depleted uranium or 
natural thorium or their solid or liquid compounds or mixtures; or
    (iii) Class 7 (radioactive) material, other than fissile material, 
for which the A2 value is unlimited; or
    (iv) Mill tailings, contaminated earth, concrete, rubble, other 
debris, and activated material in which the Class 7 (radioactive) 
material is essentially uniformly distributed and the average specific  
activity  does  not exceed 10-\6\A2/g.
    (2) LSA-II.
    (i) Water with tritium concentration up to 0.8 TBq/liter (20.0 Ci/
liter); or
    (ii) Material in which the Class 7 (radioactive) material is 
distributed throughout and the average specific  activity  does  not  
exceed 10-\4\A2/g for solids and gases, and 
10-\5\A2/g for liquids.
    (3) LSA-III. Solids (e.g., consolidated wastes, activated materials) 
that meet the requirements of Sec. 173.468 and which:
    (i) The Class 7 (radioactive) material is distributed throughout a 
solid or a collection of solid objects, or is essentially uniformly 
distributed in a solid compact binding agent (such as concrete, bitumen, 
ceramic, etc.); and
    (ii) The Class 7 (radioactive) material is relatively insoluble, or 
it is intrinsically contained in a relatively insoluble material, so 
that, even under loss of packaging, the loss of Class 7 (radioactive) 
material per package by leaching when placed in water for seven days 
would not exceed 0.1 A2; and
    (iii) The  average  specific  activity  of  the  solid  does  not  
exceed  2 x 10-\3\A2/g.
    Low toxicity alpha emitters are:
    (1) Natural uranium, depleted uranium, and natural thorium;
    (2) Ores, concentrates or tailings containing uranium-235, uranium-
238, thorium-232, thorium-228 and thorium-230; or
    (3) Alpha emitters with a half-life of less than 10 days.
    Maximum normal operating pressure means the maximum gauge pressure 
that would develop in a receptacle in a period of one year, in the 
absence of venting or cooling, under the heat conditions specified in 10 
CFR 71.71(c)(1)
    Multilateral approval means approval of a package or shipment by the 
relevant competent authority of the country of origin and of each 
country through or into which the package or shipment is to be 
transported. This definition does not include approval from a country 
over which Class 7 (radioactive) materials are carried in aircraft, if 
there is no scheduled stop in that country.
    Natural thorium means thorium with the naturally occurring 
distribution of thorium isotopes (essentially 100 percent by weight of 
thorium-232).
    Non-fixed radioactive contamination means radioactive contamination 
that can be readily removed from a surface by wiping with an absorbent 
material. Non-fixed (removable) radioactive contamination is not 
significant if it does not exceed the limits specified in Sec. 173.443.
    Normal form Class 7 (radioactive) material means Class 7 
(radioactive) material which has not been demonstrated to qualify as 
``special form Class 7 (radioactive) material.''
    Package means, for Class 7 (radioactive) materials, the packaging 
together with its radioactive contents as presented for transport.
    (1) ``Excepted package'' means a packaging together with its 
excepted Class 7 (radioactive) materials as specified in Secs. 173.421-
173.426 and 173.428.
    (2) ``Type A package'' means a packaging that, together with its 
radioactive contents limited to A1 or A2 as 
appropriate, meets the requirements of Secs. 173.410 and 173.412 and is 
designed to retain the integrity of containment and shielding required 
by this part under normal conditions of transport as demonstrated by the 
tests set forth in Sec. 173.465 or Sec. 173.466, as appropriate. A Type 
A package does not require Competent Authority Approval.
    (3) ``Type B package'' means a Type B packaging that, together with 
its radioactive contents, is designed to retain the integrity of 
containment and shielding required by this part when subjected to the 
normal conditions of transport and hypothetical accident test conditions 
set forth in 10 CFR Part 71.
    (i) ``Type B(U) package'' means a Type B packaging that, together 
with

[[Page 559]]

its radioactive contents, for international shipments requires 
unilateral approval only of the package design and of any stowage 
provisions that may be necessary for heat dissipation.
    (ii) ``Type B(M) package'' means a Type B packaging, together with 
its radioactive contents, that for international shipments requires 
multilateral approval of the package design, and may require approval of 
the conditions of shipment. Type B(M) packages are those Type B package 
designs which have a maximum normal operating pressure of more than 700 
kilopascals per square centimeter (100 pounds per square inch) gauge or 
a relief device which would allow the release of Class 7 (radioactive) 
material to the environment under the hypothetical accident conditions 
specified in 10 CFR Part 71.
    (4) ``Industrial package'' means a packaging that, together with its 
low specific activity (LSA) material or surface contaminated object 
(SCO) contents, meets the requirements of Secs. 173.410 and 173.411. 
Industrial packages are categorized in Sec. 173.411 as either:
    (i) ``Industrial package Type 1 (IP-1)'';
    (ii) ``Industrial package Type 2 (IP-2)''; or
    (iii) ``Industrial package Type 3 (IP-3)''.
    Packaging means, for Class 7 (radioactive) materials, the assembly 
of components necessary to ensure compliance with the packaging 
requirements of this subpart. It may consist of one or more receptacles, 
absorbent materials, spacing structures, thermal insulation, radiation 
shielding, service equipment for filling, emptying, venting and pressure 
relief, and devices for cooling or absorbing mechanical shocks. The 
conveyance, tie-down system, and auxiliary equipment may sometimes be 
designated as part of the packaging.
    Radiation level means the radiation dose-equivalent rate expressed 
in millisievert(s) per hour or mSv/h (millirem(s) per hour or mrem/h). 
Neutron flux densities may be converted into radiation levels according 
to Table 1:

    Table 1.--Neutron Fluence Rates To Be Regarded as Equivalent to a   
              Radiation Level of 0.01 mSv/h (1 mrem/h) \1\              
------------------------------------------------------------------------
                                                                 Flux   
                                                               density  
                                                              equivalent
                                                             to 0.01 mSv/
                                                              h (1 mrem/
                     Energy of neutron                       h) neutrons
                                                              per square
                                                              centimeter
                                                              per second
                                                             (n/cm\2\/s)
------------------------------------------------------------------------
Thermal (2.510E-8)MeV......................................        272.0
1 keV......................................................        272.0
10 keV.....................................................        281.0
100 keV....................................................         47.0
500 keV....................................................         11.0
1 MeV......................................................          7.5
5 MeV......................................................          6.4
10 MeV.....................................................         6.7 
------------------------------------------------------------------------
\1\ Flux densities equivalent for energies between those listed in this 
  table may be obtained by linear interpolation.                        

    Radioactive contents means a Class 7 (radioactive) material, 
together with any contaminated liquids or gases within the package.
    Radioactive instrument and article means any manufactured instrument 
and article such as an instrument, clock, electronic tube or apparatus, 
or similar instrument and article having Class 7 (radioactive) material 
in gaseous or non-dispersible solid form as a component part.
    Radioactive material means any material having a specific activity 
greater than 70 Bq per gram (0.002 microcurie per gram) (see definition 
of ``specific activity'').
    Special form Class 7 (radioactive) material means Class 7 
(radioactive) material which satisfies the following conditions:
    (1) It is either a single solid piece or is contained in a sealed 
capsule that can be opened only by destroying the capsule;
    (2) The piece or capsule has at least one dimension not less than 5 
millimeters (0.2 inch); and
    (3) It satisfies the test requirements of Sec. 173.469. Special form 
encapsulations designed in accordance with the requirements of 
Sec. 173.389(g) in effect on June 30, 1983 (see 49 CFR Part 173, revised 
as of October 1, 1982), and constructed prior to July 1, 1985 and 
special form encapsulations designed in accordance with the requirements 
of Sec. 173.403 in effect on March 31, 1996 (see 49 CFR Part 173, 
revised as of October

[[Page 560]]

1, 1995), and constructed prior to April 1, 1997, may continue to be 
used. Any other special form encapsulation must meet the requirements of 
this paragraph.
    Specific activity of a radionuclide means the activity of the 
radionuclide per unit mass of that nuclide. The specific activity of a 
material in which the radionuclide is essentially uniformly distributed 
is the activity per unit mass of the material.
    Surface Contaminated Object (SCO) means a solid object which is not 
itself radioactive but which has Class 7 (radioactive) material 
distributed on any of its surfaces. SCO must be in one of two groups 
with surface activity not exceeding the following limits:
    (1) SCO-I: A solid object on which:
    (i) The non-fixed contamination on the accessible surface averaged 
over 300 cm2 (or the area of the surface if less than 300 
cm2) does not exceed 4 Bq/cm2 (10-4 
microcurie/cm2) for beta and gamma and low toxicity alpha 
emitters, or 0.4 Bq/cm2 (10-5 microcurie/
cm2) for alpha emitters;
    (ii) The fixed contamination on the accessible surface averaged over 
300 cm2 (or the area of the surface if less than 300 
cm2) does not exceed 4  x  104 Bq/cm2 
(1.0 microcurie/cm2) for beta and gamma and low toxicity 
alpha emitters, or 4  x  103 Bq/cm2 (0.1 
microcurie/cm2) for all other alpha emitters; and
    (iii) The non-fixed contamination plus the fixed contamination on 
the inaccessible surface averaged over 300 cm2 (or the area 
of the surface if less than 300 cm2) does not exceed 4  x  
104 Bq/cm2 (1 microcurie/cm2) for beta 
and gamma and low toxicity alpha emitters, or 4  x  103 Bq/
cm2 (0.1 microcurie/cm2) for all other alpha 
emitters.
    (2) SCO-II: A solid object on which the limits for SCO-I are 
exceeded and on which:
    (i) The non-fixed contamination on the accessible surface averaged 
over 300 cm2 (or the area of the surface if less than 300 
cm2) does not exceed 400 Bq/cm2 (10-2 
microcurie/cm2) for beta and gamma and low toxicity alpha 
emitters or 40 Bq/cm2 (10-3 microcurie/
cm2) for all other alpha emitters;
    (ii) The fixed contamination on the accessible surface averaged over 
300 cm2 (or the area of the surface if less than 300 
cm2) does not exceed 8  x  105 Bq/cm2 
(20 microcurie/cm2) for beta and gamma and low toxicity alpha 
emitters, or 8  x  104 Bq/cm2 (2 microcuries/
cm2) for all other alpha emitters; and
    (iii) The non-fixed contamination plus the fixed contamination on 
the inaccessible surface averaged over 300 cm2 (or the area 
of the surface if less than 300 cm2) does not exceed 8  x  
105 Bq/cm2 (20 microcuries/cm2) for 
beta and gamma and low toxicity alpha emitters, or 8  x  104 
Bq/cm2 (2 microcuries/cm2) for all other alpha 
emitters.
    Transport index (TI) means the dimensionless number (rounded up to 
the next tenth) placed on the label of a package to designate the degree 
of control to be exercised by the carrier during transportation. The 
transport index is determined as follows:
    (1) For nonfissile material packages, the number determined by 
multiplying the maximum radiation level in milliSievert(s) per hour at 
one meter (3.3 feet) from the external surface of the package by 100 
(equivalent to the maximum radiation level in millirem per hour at one 
meter (3.3 feet)); or
    (2) For fissile material packages, the number determined by 
multiplying the maximum radiation level in milliSievert per hour at one 
meter (3.3 feet) from any external surface of the package by 100 
(equivalent to the maximum radiation level in millirem per hour at one 
meter (3.3 feet)) or, for criticality control purposes, the number 
obtained by dividing 50 by the allowable number of packages which may be 
transported together, whichever number is larger.
    Type A quantity means a quantity of Class 7 (radioactive) material, 
the aggregate radioactivity which does not exceed A1 for 
special form Class 7 (radioactive) material or A2 for normal 
form Class 7 (radioactive) material, where A1 and 
A2 values are given in Sec. 173.435 or are determined in 
accordance with Sec. 173.433.
    Type B quantity means a quantity of material greater than a Type A 
quantity.

[[Page 561]]

    Unilateral approval means approval of a package solely by the 
competent authority of the country of origin.
    Unirradiated thorium means thorium containing not more than 
10-7 grams uranium-233 per gram of thorium-232.
    Unirradiated uranium means uranium containing not more than 
10-6 grams plutonium per gram of uranium-235 and a fission 
product activity of not more than 9 MBq (0.24 millicuries) of fission 
products per gram of uranium-235.
    Uranium--natural, depleted or enriched means the following:
    (1) ``Natural uranium'' means uranium with the naturally occurring 
distribution of uranium isotopes (approximately 0.711 weight percent 
uranium-235, and the remainder essentially uranium-238).
    (2) ``Depleted uranium'' means uranium containing less uranium-235 
than the naturally occurring distribution of uranium isotopes.
    (3) ``Enriched uranium'' means uranium containing more uranium-235 
than the naturally occurring distribution of uranium isotopes.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20750, May 8, 1996]



Sec. 173.410  General design requirements.

    In addition to the requirements of subparts A and B of this part, 
each package used for the shipment of Class 7 (radioactive) materials 
must be designed so that--
    (a) The package can be easily handled and properly secured in or on 
a conveyance during transport.
    (b) Each lifting attachment that is a structural part of the package 
must be designed with a minimum safety factor of three against yielding 
when used to lift the package in the intended manner, and it must be 
designed so that failure of any lifting attachment under excessive load 
would not impair the ability of the package to meet other requirements 
of this subpart. Any other structural part of the package which could be 
used to lift the package must be capable of being rendered inoperable 
for lifting the package during transport or must be designed with 
strength equivalent to that required for lifting attachments.
    (c) The external surface, as far as practicable, will be free from 
protruding features and will be easily decontaminated.
    (d) The outer layer of packaging will avoid, as far as practicable, 
pockets or crevices where water might collect.
    (e) Each feature that is added to the package will not reduce the 
safety of the package.
    (f) The package will be capable of withstanding the effects of any 
acceleration, vibration or vibration resonance that may arise under 
normal conditions of transport without any deterioration in the 
effectiveness of the closing devices on the various receptacles or in 
the integrity of the package as a whole and without loosening or 
unintentionally releasing the nuts, bolts, or other securing devices 
even after repeated use (see Secs. 173.24, 173.24a, and 173.24b).
    (g) The materials of construction of the packaging and any 
components or structure will be physically and chemically compatible 
with each other and with the package contents. The behavior of the 
packaging and the package contents under irradiation will be taken into 
account.
    (h) All valves through which the package contents could escape will 
be protected against unauthorized operation;
    (i) For transport by air--
    (1) The temperature of the accessible surfaces of the package will 
not exceed 50 deg.C (122 deg.F) at an ambient temperature of 38 deg.C 
(100 deg.F) with no account taken for insulation;
    (2) The integrity of containment will not be impaired if the package 
is exposed to ambient temperatures ranging from -40 deg.C (-40 deg.F) to 
+55 deg.C (131 deg.F); and
    (3) Packages containing liquid contents will be capable of 
withstanding, without leakage, an internal pressure that produces a 
pressure differential of not less than 95 kPa (13.8 lb/in\2\).
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20750, May 8, 1996]



Sec. 173.411  Industrial packagings.

    (a) General. Each industrial packaging must comply with the 
requirements of this section which specifies

[[Page 562]]

packaging tests, and record retention applicable to Industrial Packaging 
Type 1 (IP-1), Industrial Packaging Type 2 (IP-2), and Industrial 
Packaging Type 3 (IP-3).
    (b) Industrial packaging certification and tests. (1) Each IP-1 must 
meet the general design requirements prescribed in Sec. 173.410.
    (2) Each IP-2 must meet the general design requirements prescribed 
in Sec. 173.410 and when subjected to the tests specified in 
Sec. 173.465 (c) and (d) or evaluated against these tests by any of the 
methods authorized by Sec. 173.461(a), must prevent:
    (i) Loss or dispersal of the radioactive contents; and
    (ii) A significant increase in the radiation levels recorded or 
calculated at the external surfaces for the condition before the test.
    (3) Each IP-3 packaging must meet the requirements for an IP-1 and 
an IP-2, and must meet the requirements specified in Sec. 173.412(a) 
through Sec. 173.412(j).
    (4) Each specification IM 101 or IM 102 portable tank 
(Secs. 178.270, 178.271, 178.272 of this subchapter) that is certified 
as meeting the requirements for an IP-2 or IP-3 must:
    (i) Satisfy the requirements for IP-2 or IP-3, respectively;
    (ii) Be capable of withstanding a test pressure of 265 kPa (37.1 
pounds per square inch) gauge;
    (iii) Be designed so that any added shielding is capable of 
withstanding the static and dynamic stresses resulting from normal 
handling and normal conditions of transport; and
    (iv) Be designed so that loss of shielding will not result in a 
significant increase in the radiation levels recorded at the external 
surfaces.
    (5) Each freight container that is certified as meeting the 
requirements of IP-2 or IP-3, must--
    (i) Satisfy the requirements for IP-2 or IP-3, respectively;
    (ii) Be designed to conform to the requirements of ISO 1496-3-
1995(E), ``Series 1 Freight Containers--Specifications and Testing--Part 
3: Tank Containers for Liquids, Gases and Pressurized Dry Bulk'';
    (iii) Be designed so that loss of shielding will not result in a 
significant increase in the radiation levels recorded at the external 
surfaces if they are subjected to the tests specified in ISO 1496/1-
1995(E); and
    (iv) For international transportation, have a safety approval plate 
in conformance with 49 CFR 451.21 through 451.25.
    (c) Except for IP-1 packagings, each offeror of an industrial 
package must maintain on file for at least one year after the latest 
shipment, and shall provide to the Associate Administrator for Hazardous 
Materials Safety on request, complete documentation of tests and an 
engineering evaluation or comparative data showing that the construction 
methods, packaging design, and materials of construction comply with 
that specification.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20750, May 8, 1996]



Sec. 173.412  Additional design requirements for Type A packages.

    In addition to meeting the general design requirements prescribed in 
Sec. 173.410, each Type A packaging must be designed so that--
    (a) The outside of the packaging incorporates a feature, such as a 
seal, that is not readily breakable, and that, while intact, is evidence 
that the package has not been opened. In the case of packages shipped in 
closed transport vehicles in exclusive use, the cargo compartment, 
instead of the individual packages, may be sealed.
    (b) The smallest external dimension of the package is not less than 
10 centimeters (4 inches).
    (c) Containment and shielding is maintained during transportation 
and storage in a temperature range of -40 deg.C (-40 deg.F) to 70 deg.C 
(158 deg.F). Special attention shall be given to liquid contents and to 
the potential degradation of the packaging materials within the 
temperature range.
    (d) The packaging must include a containment system securely closed 
by a positive fastening device that cannot be opened unintentionally or 
by pressure that may arise within the package during normal transport. 
Special form Class 7 (radioactive) material, as demonstrated in 
accordance with Sec. 173.469, may be considered as a component of

[[Page 563]]

the containment system. If the containment system forms a separate unit 
of the package, it must be securely closed by a positive fastening 
device that is independent of any other part of the package.
    (e) For each component of the containment system account is taken, 
where applicable, of radiolytic decomposition of materials and the 
generation of gas by chemical reaction and radiolysis.
    (f) The containment system will retain its radioactive contents 
under the reduction of ambient pressure to 25 kPa (3.6 pounds per square 
inch).
    (g) Each valve, other than a pressure relief device, is provided 
with an enclosure to retain any leakage.
    (h) Any radiation shield that encloses a component of the packaging 
specified as part of the containment system will prevent the 
unintentional escape of that component from the shield.
    (i) Failure of any tie-down attachment that is a structural part of 
the packaging, under both normal and accident conditions, must not 
impair the ability of the package to meet other requirements of this 
subpart.
    (j) When evaluated against the performance requirements of this 
section and the tests specified in Sec. 173.465 or using any of the 
methods authorized by Sec. 173.461(a), the packaging will prevent--
    (1) Loss or dispersal of the radioactive contents; and
    (2) A significant increase in the radiation levels recorded or 
calculated at the external surfaces for the condition before the test.
    (k) Each packaging designed for liquids will--
    (1) Be designed to provide for ullage to accommodate variations in 
temperature of the contents, dynamic effects and filling dynamics;
    (2) Meet the conditions prescribed in paragraph (j) of this section 
when subjected to the tests specified in Sec. 173.466 or evaluated 
against these tests by any of the methods authorized by Sec. 173.461(a); 
and
    (3) Either--
    (i) Have sufficient suitable absorbent material to absorb twice the 
volume of the liquid contents. The absorbent material must be compatible 
with the package contents and suitably positioned to contact the liquid 
in the event of leakage; or
    (ii) Have a containment system composed of primary inner and 
secondary outer containment components designed to assure retention of 
the liquid contents within the secondary outer component in the event 
that the primary inner component leaks.
    (l) Each package designed for gases, other than tritium not 
exceeding 40 TBq (1000Ci) or noble gases not exceeding the A2 
value appropriate for the noble gas, will be able to prevent loss or 
dispersal of contents when the package is subjected to the tests 
prescribed in Sec. 173.466 or evaluated against these tests by any of 
the methods authorized by Sec. 173.461(a).



Sec. 173.413  Requirements for Type B packages.

    Except as provided in Sec. 173.416, each Type B(U) or Type B(M) 
package must be designed and constructed to meet the applicable 
requirements specified in 10 CFR Part 71.



Sec. 173.415  Authorized Type A packages.

    The following packages are authorized for shipment if they do not 
contain quantities exceeding A1 or A2 as 
appropriate:
    (a) DOT Specification 7A (Sec. 178.350 of this subchapter) Type A 
general packaging. Each offeror of a Specification 7A package must 
maintain on file for at least one year after the latest shipment, and 
shall provide to DOT on request, complete documentation of tests and an 
engineering evaluation or comparative data showing that the construction 
methods, packaging design, and materials of construction comply with 
that specification. Use of Specification 7A packagings designed in 
accordance with the requirements of Sec. 178.350 of this subchapter in 
effect on June 30, 1983 (see 49 CFR Part 178 revised as of October 1, 
1982), is not authorized after April 1, 1997.
    (b) Any other Type A packaging that also meets the applicable 
standards for fissile materials in 10 CFR Part 71 and is used in 
accordance with Sec. 173.471.
    (c) Any Type B, B(U) or B(M) packaging authorized pursuant to 
Sec. 173.416.

[[Page 564]]

    (d) Any foreign-made packaging that meets the standards in IAEA 
``Safety Series No. 6'' and bears the marking ``Type A'' and was used 
for the import of Class 7 (radioactive) materials. Such packagings may 
be subsequently used for domestic and export shipments of Class 7 
(radioactive) materials provided the offeror obtains the applicable 
documentation of tests and engineering evaluations and maintains the 
documentation on file in accordance with paragraph (a) of this section. 
These packagings must conform with requirements of the country of origin 
(as indicated by the packaging marking) and the IAEA regulations 
applicable to Type A packagings.



Sec. 173.416  Authorized Type B packages.

    Each of the following packages is authorized for shipment of 
quantities exceeding A1 or A2, as appropriate:
    (a) Any Type B, Type B(U) or Type B(M) packaging that meets the 
applicable requirements of 10 CFR Part 71 and that has been approved by 
the U.S. Nuclear Regulatory Commission may be shipped pursuant to 
Sec. 173.471.
    (b) Any Type B, B(U) or B(M) packaging that meets the applicable 
requirements of the regulations of the International Atomic Energy 
Agency (IAEA) in its ``Regulations for the Safe Transport of Radioactive 
Materials, Safety Series No. 6'' and for which the foreign competent 
authority certificate has been revalidated by DOT pursuant to 
Sec. 173.473. These packagings are authorized only for export and import 
shipments.
    (c) DOT Specification 6M (Sec. 178.354 of this subchapter) metal 
packaging, only for solid or gaseous Class 7 (radioactive) materials 
that will not undergo pressure-generating decomposition at temperatures 
up to 121 deg.C (250 deg.F) and that do not generate more than 10 watts 
of radioactive decay heat.
    (d) For contents in other than special form; DOT Specification 20WC 
(Sec. 178.362 of this subchapter), wooden protective jacket, when used 
with a single, snug-fitting inner DOT Specification 2R (Sec. 178.360 of 
this subchapter). For liquid contents, the inner packaging must conform 
to Sec. 173.412(j) and (k).
    (e) For contents in special form only; DOT Specification 20WC 
(Sec. 178.362 of this subchapter), wooden protective jacket, with a 
single snug-fitting inner Type A packaging that has a metal outer wall 
and conforms to Sec. 178.350 of this subchapter. Radioactive decay heat 
may not exceed 100 watts.
    (f) For contents in special form only; DOT Specification 21WC 
(Sec. 178.364 of this subchapter), wooden protective overpack, with a 
single inner DOT Specification 2R (Sec. 178.360 of this subchapter). 
Contents must be loaded within the inner packaging in such a manner as 
to prevent loose movement during transportation. The inner packaging 
must be securely positioned and centered within the overpack so that 
there will be no significant displacement of the inner packaging if 
subjected to the 9 meter (30 feet) drop test described in 10 CFR part 
71.



Sec. 173.417  Authorized fissile materials packages.

    (a) Except as provided in Sec. 173.453, fissile materials containing 
not more than A1 or A2 as appropriate, must be 
packaged in one of the following packagings:
    (1) DOT Specification 6L (Sec. 178.352 of this subchapter), metal 
packaging, for materials prescribed in paragraph (b)(1) of this section.
    (2) DOT Specification 6M (Sec. 178.354 of this subchapter), metal 
packaging, for materials prescribed in paragraph (b)(2) of this section.
    (3) Any packaging listed in Sec. 173.415, limited to the Class 7 
(radioactive) materials specified in 10 CFR part 71, subpart C.
    (4) Any other Type A or Type B, Type B(U), or Type B(M) packaging 
for fissile Class 7 (radioactive) materials that also meets the 
applicable standards for fissile materials in 10 CFR part 71.
    (5) Any other Type A or Type B, Type B(U), or Type B(M) packaging 
that also meets the applicable requirements for fissile material 
packaging in Section V of the International Atomic Energy Agency 
``Regulations for the Safe Transport of Radioactive Materials, Safety 
Series No. 6,'' and for which the foreign competent authority 
certificate has been revalidated by the U.S. Competent Authority, in 
accordance

[[Page 565]]

with Sec. 173.473. These packages are authorized only for export and 
import shipments.
    (6) A 55-gallon 1A2 steel drum, meeting the applicable packaging 
testing requirements of subpart M of Part 178 of this subchapter at the 
packing group I performance level, subject to the following conditions:
    (i) The quantity may not exceed 350 grams of uranium-235 in any non-
pyrophoric form, enriched to any degree in the uranium-235 isotope;
    (ii) Each drum must have a minimum 18 gauge body and bottom head and 
16 gauge removable top head with one or more corrugations in the cover 
near the periphery;
    (iii) Closure must conform to Sec. 178.352 of this subchapter;
    (iv) At least four equally spaced 12 millimeter (0.5 inch) diameter 
vent holes must be provided on the sides of the drum near the top, each 
covered with weatherproof tape; or equivalent device;
    (v) Appropriate primary, inner containment of the contents and 
sufficient packaging material, such as plastic or metal jars or cans, 
must be provided such that Specification 7A (Sec. 178.350 of this 
subchapter) provisions are satisfied by the inner packaging;
    (vi) Each inner container must be capable of venting if subjected to 
the thermal test described in 10 CFR part 71;
    (vii) Liquid contents must be packaged in accordance with 
Sec. 173.412 (j) and (k); and
    (viii) The maximum weight of contents, including internal packaging, 
may not exceed 91 kilograms (200 pounds) with fissile material content 
limited as shown in Table 2:

                    Table 2.--Fissile Material Content and Transport Index for UN1A2 Package                    
----------------------------------------------------------------------------------------------------------------
               Maximum quantity and minimum transport index                  Maximum No. of packages transported
---------------------------------------------------------------------------   as a fissile material controlled  
     U-235 per package  (grams)        Minimum transport index per package                shipment              
----------------------------------------------------------------------------------------------------------------
350.................................                            1.8                                    72       
300.................................                            1.0                                   129       
250.................................                            0.5                                   256       
200.................................                            0.3                                   500       
150.................................                            0.1                                   500       
100.................................                            0.1                                   500       
50..................................                          (\1\)                                 (\2\)       
----------------------------------------------------------------------------------------------------------------
\1\ Transport index is limited by the external radiation levels.                                                
\2\ Maximum number is limited by the total transport index.                                                     

    (7) Any metal cylinder that meets the requirements of Sec. 173.415 
and Sec. 178.350 of this subchapter for Specification 7A Type A 
packaging may be used for the transport of residual ``heels'' of 
enriched solid uranium hexafluoride without a protective overpack in 
accordance with Table 3, as follows:

       Table 3.--Allowable Content of Uranium Hexafluoride (UF6) ``Heels'' In a Specification 7A Cylinder       
----------------------------------------------------------------------------------------------------------------
Maximum cylinder diameter      Cylinder volume         Maximum         Maximum ``Heel'' weight per cylinder     
---------------------------------------------------  uranium-235 -----------------------------------------------
                                                     enrichment             UF6                 Uranium-235     
 Centimeters     Inches      Liters     Cubic feet     (weight   -----------------------------------------------
                                                      percent)         kg          lb          kg          lb   
----------------------------------------------------------------------------------------------------------------
12.7.........          5         8.8        0.311        100.0         0.045         0.1       0.031        0.07
20.3.........          8        39.0        1.359         12.5         0.227         0.5       0.019        0.04
30.5.........         12        68.0        2.410          5.0         0.454         1.0       0.015        0.03
76.0.........         30       725.0       25.64           5.0        11.3          25.0       0.383        0.84
122.0........         48     3,084.0     1108.9            4.5        22.7          50.0       0.690        1.52
122.0........         48     4,041.0     2142.7            4.5        22.7          50.0       0.690        1.52
                                                                                                                
----------------------------------------------------------------------------------------------------------------
\1\ 10 ton.                                                                                                     
\2\ 14 ton.                                                                                                     

[[Page 566]]

                                                                                                                

    (8) DOT Specification 20PF-1, 20PF-2, or 20PF-3 (Sec. 178.356 of 
this subchapter), or Specification 21PF-1A, 21PF-1B, or 21PF-2 
(Sec. 178.358 of this subchapter) phenolic-foam insulated overpack with 
snug fitting inner metal cylinders, meeting all requirements of 
Secs. 173.24, 173.410, 173.412, and 173.420 and the following:
    (i) Handling procedures and packaging criteria must be in accordance 
with DOE Report ORO-651 or ANSI N14.1.
    (ii) Quantities of uranium hexafluoride are authorized as shown in 
Table 6 of this section, with each package assigned a minimum transport 
index as also shown.
    (b) Fissile Class 7 (radioactive) materials with radioactive content 
exceeding A1 or A2 must be packaged in one of the 
following packagings:
    (1) DOT Specification 6L (Sec. 178.352 of this subchapter), metal 
packaging. These packages may contain only uranium-235, plutonium-239, 
or plutonium-241, as metal, oxide, or compounds that do not decompose at 
temperatures up to 149 deg.C (300 deg.F). Radioactive decay heat output 
may not exceed 5 watts. Class 7 (radioactive) materials in normal form 
must be packaged in one or more tightly sealed metal or polyethylene 
bottles within a DOT Specification 2R (Sec. 178.360 of this subchapter) 
containment vessel. Authorized contents are limited in accordance with 
Table 4, as follows:

          Table 4.--Authorized Contents in Kilograms (kg) and Conditions for Specification 6L Packages          
----------------------------------------------------------------------------------------------------------------
                            Uranium-235                             Plutonium (Plutonium             Maximum No.
-------------------------------------------------------------------   solutions are not              of packages
                                                                         authorized)       Minimum   transported
                                                                   ----------------------  fissile       as a   
                                                                                          transport    fissile  
                        H/X=3\1\                         3 H/X= 10              10 = H/X    index      material 
                                                                     H/X= 10      = 20                 control  
                                                                                                       shipment 
----------------------------------------------------------------------------------------------------------------
14.....................................................    \2\ 3.6  .........  .........        1.3          80 
                                                         .........        2.5        2.4        1.8          50 
----------------------------------------------------------------------------------------------------------------
\1\ H/X is the ratio of hydrogen to fissile atoms in their inner containment with all sources of hydrogen in the
  containment considered.                                                                                       
\2\ Volume not to exceed 3.6 liters.                                                                            

    (2) DOT Specification 6M (Sec. 178.354 of this subchapter), metal 
packaging. These packages must contain only solid Class 7 (radioactive) 
materials that will not decompose at temperatures up to 121  deg.C (250  
deg.F). Radioactive decay heat output may not exceed 10 watts. Class 7 
(radioactive) materials in other than special form must be packaged in 
one or more tightly sealed metal cans or polyethylene bottles within a 
DOT Specification 2R (Sec. 178.360 of this subchapter) containment 
vessel.
    (i) For fissile material with a criticality TI equal to 0.0, 
packages are limited to the following amounts of fissile Class 7 
(radioactive) materials: 1.6 kilograms of uranium-235; 0.9 kilograms of 
plutonium (except that due to the 10-watt thermal decay heat limitation, 
the limit for plutonium-238 is 0.02 kilograms); and 0.5 kilograms of 
uranium-233. The maximum ratio of hydrogen to fissile material may not 
exceed three, including all of the sources of hydrogen within the DOT 
Specification 2R containment vessel.
    (ii) Maximum quantities of fissile material and other restrictions 
for materials with a criticality TI of greater than 0.0 are given in 
Table 5. The minimum transport index to be assigned per package and, for 
fissile material, controlled shipments, the allowable number of similar 
packages per conveyance and per transport vehicle are shown in Table 5. 
Where a maximum ratio of hydrogen to fissile material is specified in 
Table 5, only the hydrogen interspersed with the fissile material must 
be considered. For a uranium-233 shipment, the maximum inside diameter 
of the inner containment vessel may not exceed 12.1 centimeters (4.75 
inches). Where necessary, a tight-fitting steel insert must be used to 
reduce a larger diameter inner containment vessel specified in 
Sec. 178.354 of this subchapter

[[Page 567]]

to the 12.1 centimeter (4.75 inch) limit. Table 5 is as follows:

                         Table 5.--Authorized Contents for Specification 6M Packages\1\                         
----------------------------------------------------------------------------------------------------------------
       Uranium-233\5\              Uranium-235\4\,\7\           Plutonium\2\,\3\,\4\                 Maximum no.
-----------------------------------------------------------------------------------------               pkgs.   
Metal or       Compounds      Metal or       Compounds      Metal or       Compounds                 transported
  alloy  --------------------   alloy  --------------------   alloy  --------------------  Minimum       as a   
---------                    ----------                    ----------                     transport    fissile  
                                                                                            index      material 
H/X=0\8\    H/X=0     H/X=3     H/X=0     H/X=0     H/X=3     H/X=0     H/X=0     H/X=3                control  
                                                                                                       shipment 
----------------------------------------------------------------------------------------------------------------
0.5.....       0.5       0.5       1.6       1.6       1.6    \9\0.9    \9\0.9    \9\0.9          0         N/A 
3.6.....       4.4       2.9       7.2       7.6       5.3       3.1       4.1       3.4        0.1       1,250 
\6\4.2..       5.2       3.5       8.7       9.6       6.4       3.4       4.5       4.1        0.2         625 
\6\5.2..       6.8       4.5      11.2      13.9       8.3       4.2                 4.5        0.5         250 
  ......                          13.5      16.0      10.1       4.5                            1.0         125 
  ......                                    26.0      16.1                                      5.0          25 
  ......                                    32.0      19.5                                     10.0          12 
----------------------------------------------------------------------------------------------------------------
\1\ Quantity in kilograms.                                                                                      
\2\ Minimum percentage of plutonium-240 is 5 weight percent.                                                    
\3\ 4.5 kilogram limitation of plutonium due to watt decay heat limitation.                                     
\4\ For a mixture of uranium-235 and plutonium an equal amount of uranium-235 may be substituted for any portion
  of the plutonium authorized.                                                                                  
\5\ Maximum inside diameter of specification 2R containment vessel not to exceed 12.1 centimeters (4.75 inches) 
  (see paragraph (b)(2)(ii) of this section).                                                                   
\6\ Granulated or powdered metal with any particle less than 6.4 millimeters (0.25 inch) in the smallest        
  dimension is not authorized.                                                                                  
7 Except for material with a criticality TI of 0.0, the maximum permitted uranium-235 enrichment is 93.5        
  percent.                                                                                                      
\8\ H/X is the ratio of hydrogen to fissile atoms in the inner containment.                                     
\9\ For Pu-238, the limit is 0.02 kg because of the 10 watt thermal decay heat limitation.                      

    (3) Type B, or Type B(U), or B(M) packaging that meets the standards 
for packaging of fissile materials in 10 CFR part 71, and is approved by 
the U.S. Nuclear Regulatory Commission and used in accordance with 
Sec. 173.471.
    (4) Type B, B(U), or B(M) packaging that meets the applicable 
requirements for fissile Class 7 (radioactive) materials in Section V of 
the IAEA ``Regulations for the Safe Transport of Radioactive Materials, 
Safety Series No. 6'' and for which the foreign competent authority 
certificate has been revalidated by the U.S. Competent Authority in 
accordance with Sec. 173.473. These packagings are authorized only for 
import and export shipments.
    (5) DOT Specifications 20PF-1, 20PF-2, or 20PF-3 (Sec. 178.356 of 
this subchapter), or DOT Specifications 21PF-1A or 21PF-1B (Sec. 178.358 
of this subchapter) phenolic-foam insulated overpack with snug fitting 
inner metal cylinders, meeting all requirements of Secs. 173.24, 
173.410, and 173.412, and the following:
    (i) Handling procedures and packaging criteria must be in accordance 
with DOE Report ORO-651 or ANSI N14.1; and
    (ii) Quantities of uranium hexafluoride are authorized as shown in 
Table 6, with each package assigned a minimum transport index as also 
shown:

                             Table 6.--Authorized Quantities of Uranium Hexafluoride                            
----------------------------------------------------------------------------------------------------------------
                                             Maximum inner cylinder    Maximum weight of   Maximum U-           
                                                    diameter             UF6 contents          235      Minimum 
  Protective overpack specification number  ---------------------------------------------- enrichment  transport
                                                                                            (weight/     index  
                                             Centimeters    Inches   Kilograms    Pounds    percent)            
----------------------------------------------------------------------------------------------------------------
20PF-1.....................................        12.7           5         25         55       100.0        0.1
20PF-2.....................................        20.3           8        116        255        12.5        0.4
20PF-3.....................................        30.5          12        209        460         5.0        1.1
21PF-1A 1 or 21PF-1B 1.....................      2 76.0        2 30      2,250      4,950         5.0        5.0
21PF-1A 1 or 21PF-1B 1.....................       376.0         330      2,282      5,020         5.0        5.0
21PF-2 1...................................      2 76.0        2 30      2,250      4,950         5.0        5.0
21PF-2 1...................................      3 76.0        3 30      2,282      5,020         5.0        5.0
----------------------------------------------------------------------------------------------------------------
\1\ For 76 cm (30 in) cylinders, the maximum H/U atomic ratio is 0.088.                                         

[[Page 568]]

                                                                                                                
\2\ Model 30A inner cylinder (reference ORO-651).                                                               
\3\ Model 30B inner cylinder (reference ORO-651).                                                               

[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20750, May 8, 1996]



Sec. 173.418  Authorized packages--pyrophoric Class 7 (radioactive) materials.

    Pyrophoric Class 7 (radioactive) materials, as referenced in the 
Sec. 172.101 Table of this subchapter, in quantities not exceeding 
A2 per package must be transported in DOT Specification 7A 
packagings constructed of materials that will not react with, nor be 
decomposed by, the contents. Contents of the package must be--
    (a) In solid form and must not be fissile unless excepted by 
Sec. 173.453;
    (b) Contained in sealed and corrosion resistant receptacles with 
positive closures (friction or slip-fit covers or stoppers are not 
authorized);
    (c) Free of water and contaminants that would increase the 
reactivity of the material; and
    (d) Inerted to prevent self-ignition during transport by either--
    (1) Mixing with large volumes of inerting materials, such as 
graphite, dry sand, or other suitable inerting material, or blended into 
a matrix of hardened concrete; or
    (2) Filling the innermost receptacle with an appropriate inert gas 
or liquid.



Sec. 173.419  Authorized packages--oxidizing Class 7 (radioactive) materials.

    (a) An oxidizing Class 7 (radioactive) material, as referenced in 
the Sec. 172.101 Table of this subchapter, is authorized in quantities 
not exceeding an A2 per package, in a DOT Specification 7A 
package provided that--
    (1) The contents are:
    (i) Not fissile;
    (ii) Packed in inside packagings of glass, metal or compatible 
plastic; and
    (iii) Cushioned with a material that will not react with the 
contents; and
    (2) The outside packaging is made of wood, metal, or plastic.
    (b) The package must be capable of meeting the applicable test 
requirements of Sec. 173.465 without leakage of contents.
    (c) For shipment by air, the maximum quantity in any package may not 
exceed 11.3 kilograms (25 pounds).



Sec. 173.420  Uranium hexafluoride (fissile, fissile excepted and non-fissile).

    (a) In addition to any other applicable requirements of this 
subchapter, uranium hexafluoride, fissile, fissile excepted or non-
fissile, must be offered for transportation as follows:
    (1) Before initial filling and during periodic inspection and test, 
packagings must be cleaned in accordance with American National Standard 
N14.1.
    (2) Packagings must be designed, fabricated, inspected, tested and 
marked in accordance with--
    (i) American National Standard N14.1 (1990, 1987, 1982, 1971) in 
effect at the time the packaging was manufactured;
    (ii) Specifications for Class DOT-106A multi-unit tank car tanks 
(Secs. 179.300 and 179.301 of this subchapter); or
    (iii) Section VIII, Division I of the ASME Code, provided the 
packaging--
    (A) Was manufactured on or before June 30, 1987;
    (B) Conforms to the edition of the ASME Code in effect at the time 
the packaging was manufactured;
    (C) Is used within its original design limitations; and
    (D) Has shell and head thicknesses that have not decreased below the 
minimum value specified in the following table:
     

                                                                        
------------------------------------------------------------------------
                                          Minimum thickness; millimeters
             Packaging model                          (inches)          
------------------------------------------------------------------------
1S, 2S..................................   1.58 (0.062)                 
5A, 5B, 8A..............................   3.17 (0.125)                 
12A, 12B................................   4.76 (0.187)                 
30B.....................................   7.93 (0.312)                 
48A, F, X, and Y........................   12.70 (0.500)                
48T, O, OM, OM Allied, HX, H, AND G.....   6.35 (0.250)                 
------------------------------------------------------------------------

    (3) Uranium hexafluoride must be in solid form.
    (4) The volume of solid uranium hexafluoride, except solid depleted 
uranium hexafluoride, at 20 deg.C (68 deg. F) may

[[Page 569]]

not exceed 61% of the certified volumetric capacity of the packaging. 
The volume of solid depleted uranium hexafluoride at 20 deg. C (68 deg. 
F) may not exceed 62% of the certified volumetric capacity of the 
packaging.
    (5) The pressure in the package at 20 deg. C (68 deg. F) must be 
less than 101.3 kPa (14.8 psia).
    (b) Packagings for uranium hexafluoride must be periodically 
inspected, tested, marked and otherwise conform with the American 
National Standard N14.1-1990.
    (c) Each repair to a packaging for uranium hexafluoride must be 
performed in accordance with American National Standard N14.1-1990.



Sec. 173.421  Excepted packages for limited quantities of Class 7 (radioactive) materials.

    (a) A Class 7 (radioactive) material whose activity per package does 
not exceed the limits specified in Sec. 173.425 and its packaging are 
excepted from the specification packaging, marking, labeling and, if not 
a hazardous substance or hazardous waste, the shipping paper and 
certification requirements of this subchapter and requirements of this 
subpart if:
    (1) Each package meets the general design requirements of 
Sec. 173.410;
    (2) The radiation level at any point on the external surface of the 
package does not exceed 0.005 mSv/hour (0.5 mrem/ hour);
    (3) The nonfixed (removable) radioactive surface contamination on 
the external surface of the package does not exceed the limits specified 
in Sec. 173.443(a);
    (4) The outside of the inner packaging or, if there is no inner 
packaging, the outside of the packaging itself bears the marking 
``Radioactive'';
    (5) Except as provided in Sec. 173.426, the package does not contain 
more than 15 grams of uranium-235; and
    (6) The material is otherwise prepared for shipment as specified in 
accordance with Sec. 173.422.
    (b) A limited quantity of Class 7 (radioactive) material that is a 
hazardous substance or a hazardous waste, is not subject to the 
provisions in Sec. 172.203(d) or Sec. 172.204(c)(4) of this subchapter.



Sec. 173.422  Additional requirements for excepted packages containing Class 7 (radioactive) materials.

    (a) Except for materials subject to the shipping paper requirements 
of subpart C of Part 172 of this subchapter, excepted packages prepared 
for shipment under the provisions of Sec. 173.421, Sec. 173.424, 
Sec. 173.426, or Sec. 173.428 must be certified as being acceptable for 
transportation by having a notice enclosed in or on the package, 
included with the packing list, or otherwise forwarded with the package. 
This notice must include the name of the consignor or consignee and one 
of the following statements, as appropriate:
    (1) ``This package conforms to the conditions and limitations 
specified in 49 CFR 173.421 for radioactive material, excepted package-
limited quantity of material, UN2910'';
    (2) ``This package conforms to the conditions and limitations 
specified in 49 CFR 173.424 for radioactive material, excepted package-
instruments or articles, UN2910'';
    (3) ``This package conforms to the conditions and limitations 
specified in 49 CFR 173.426 for radioactive material, excepted package-
articles manufactured from natural or depleted uranium, or natural 
thorium, UN2910''; or
    (4) ``This package conforms to the conditions and limitations 
specified in 49 CFR 173.428 for radioactive material, excepted package-
empty package, UN2910.''
    (b) An excepted package of Class 7 (radioactive) material that is 
classed as Class 7 and is prepared for shipment under the provisions of 
Sec. 173.421, Sec. 173.423, Sec. 173.424, Sec. 173.426, or Sec. 173.428 
is not subject to the requirements of this subchapter, except for--
    (1) Sections 171.15, 171.16, 174.750, 176.710, and 177.861 of this 
subchapter, pertaining to the reporting of incidents and 
decontamination, when transported by a mode other than air;
    (2) Sections 171.15, 171.16, and 175.700(b) of this subchapter 
pertaining to the reporting of incidents and decontamination when 
transported by aircraft; and
    (3) The training requirements of subpart H of part 172 of this 
subchapter

[[Page 570]]

and, for materials that meet the definition of a hazardous substance or 
a hazardous waste, the shipping paper requirements of subpart C of Part 
172 of this subchapter.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20751, May 8, 1996; 62 FR 51561, Oct. 1, 1997]



Sec. 173.423  Requirements for multiple hazard limited quantity Class 7 (radioactive) materials.

    (a) Except as provided in Sec. 173.4, when a limited quantity 
radioactive material meets the definition of another hazard class or 
division, it must be--
    (1) Classed for the additional hazard;
    (2) Packaged to conform with the requirements specified in 
Sec. 173.421(a)(1) through (a)(5) or Sec. 173.424(a) through (g), as 
appropriate; and
    (3) Offered for transportation in accordance with the requirements 
applicable to the hazard for which it is classed.
    (b) A limited quantity Class 7 (radioactive) material which is 
classed other than Class 7 in accordance with this subchapter is 
excepted from the requirements of Secs. 173.422(a), 172.203(d), and 
172.204(c)(4) of this subchapter if the entry ``Limited quantity 
radioactive material'' appears on the shipping paper in association with 
the basic description.



Sec. 173.424  Excepted packages for radioactive instruments and articles.

    A radioactive instrument or article and its packaging is excepted 
from the specification packaging, shipping paper and certification, 
marking and labeling requirements of this subchapter and requirements of 
this subpart, if:
    (a) Each package meets the general design requirements of 
Sec. 173.410;
    (b) The activity of the instrument or article does not exceed the 
relevant limit listed in Table 7 in Sec. 173.425;
    (c) The total activity per package does not exceed the relevant 
limit listed in Table 7 in Sec. 173.425;
    (d) The radiation level at 10 cm (4 in) from any point on the 
external surface of any unpackaged instrument or article does not exceed 
0.1 mSv/hour (10 mrem/hour);
    (e) The radiation level at any point on the external surface of a 
package bearing the article or instrument does not exceed 0.005 mSv/hour 
(0.5 mrem/hour), or, for exclusive use domestic shipments, 0.02 mSv (2 
mrem/hour);
    (f) The nonfixed (removable) radioactive surface contamination on 
the external surface of the package does not exceed the limits specified 
in Sec. 173.443(a);
    (g) Except as provided in Sec. 173.426, the package does not contain 
more than 15 grams of uranium-235; and
    (h) The package is otherwise prepared for shipment as specified in 
Sec. 173.422.



Sec. 173.425  Table of activity limits--excepted quantities and articles.

    The limits applicable to instruments, articles, and limited 
quantities subject to exceptions under Secs. 173.421 and 173.424 are set 
forth in Table 7 as follows:

                   Table 7.--Activity Limits for Limited Quantities, Instruments, and Articles                  
----------------------------------------------------------------------------------------------------------------
                                             Instruments and articles                                           
                                --------------------------------------------------                              
       Nature of contents            Limits for each                                Materials package limits \1\
                                  instrument or article      Package limits \1\                                 
                                           \1\                                                                  
----------------------------------------------------------------------------------------------------------------
Solids:                                                                                                         
    Special form...............  10-2 A1                  A1                       10-3 A1                      
    Normal form................  10-2 A2                  A2                       10-3 A2                      
Liquids:                                                                                                        
    Tritiated water:                                                                                            
        0.0037 TBq/liter (0.1                                                      37 TBq (1,000 Ci)            
         Ci/L).                                                                                                 
        0.0037 TBq to 0.037 TBq/                                                   3.7 TBq (100 Ci)             
         L (0.1 Ci to 1.0 Ci/L).                                                                                
        >0.037 TBq/L (1.0 Ci/L)                                                    0.037 TBq (1.0 Ci)           
    Other Liquids..............  10-3 A2                  10-1 A2                  10-4 A2                      
Gases:                                                                                                          
    Tritium \2\................  2 x 10-2 A2              2 x 10-1 A2              2 x 10-2 A2                  
    Special form...............  10-3 A1                  10-2 A1                  10-3 A1                      
    Other form.................  10-3 A2                  10-2 A2                  10-3 A2                      
----------------------------------------------------------------------------------------------------------------
\1\ For mixtures of radionuclides see Sec.  173.433(d).                                                         
\2\ These values also apply to tritium in activated luminous paint and tritium adsorbed on solid carriers.      

[[Page 571]]

                                                                                                                

[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20751, May 8, 1996]



Sec. 173.426  Excepted packages for articles containing natural uranium or thorium.

    A manufactured article in which the sole Class 7 (radioactive) 
material content is natural or unirradiated depleted uranium or natural 
thorium and its packaging is excepted from the specification packaging, 
shipping paper and certification, marking, and labeling requirements of 
this subchapter and requirements of this subpart if:
    (a) Each package meets the general design requirements of 
Sec. 173.410;
    (b) The outer surface of the uranium or thorium is enclosed in an 
inactive sheath made of metal or other durable protective material;
    (c) The conditions specified in Sec. 173.421(a) (2), (3) and (4) are 
met; and
    (d) The article is otherwise prepared for shipment as specified in 
Sec. 173.422.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20752, May 8, 1996]



Sec. 173.427  Transport requirements for low specific activity (LSA) Class 7 (radioactive) materials and surface contaminated objects (SCO).

    (a) In addition to other applicable requirements specified in this 
subchapter, low specific activity (LSA) materials and surface 
contaminated objects (SCO), unless excepted by paragraph (d) of this 
section, must be packaged in accordance with paragraph (b) or (c) of 
this section and must be transported in accordance with the following 
conditions:
    (1) The external dose rate must not exceed an external radiation 
level of 10 mSv/h (1 rem/h) at 3 meters from the unshielded material;
    (2) The quantity of LSA and SCO material in any single conveyance 
must not exceed the limits specified in Table 9;
    (3) LSA material and SCO that are or contain fissile material must 
meet the applicable requirements of Secs. 173.451 and 173.467;
    (4) Packages must meet the contamination control limits specified in 
Sec. 173.443;
    (5) External radiation levels must comply with Sec. 173.441; and
    (6) For LSA material and SCO required by this section to be 
consigned as exclusive use:
    (i) Shipments must be loaded by the consignor and unloaded by the 
consignee from the conveyance or freight container in which originally 
loaded;
    (ii) There must be no loose Class 7 (radioactive) material in the 
conveyance, however, when the conveyance is the packaging there must be 
no leakage of Class 7 (radioactive) material from the conveyance;
    (iii) Packages must be braced so as to prevent shifting of lading 
under conditions normally incident to transportation;
    (iv) Specific instructions for maintenance of exclusive use shipment 
controls must be provided by the offeror to the carrier. Such 
instructions must be included with the shipping paper information;
    (v) Except for shipments of unconcentrated uranium or thorium ores, 
the transport vehicle must be placarded in accordance with subpart F of 
Part 172 of this subchapter;
    (vi) For domestic transportation only, packages are excepted from 
the marking and labeling requirements of this subchapter. However, the 
exterior of each nonbulk package must be stenciled or otherwise marked 
``Radioactive--LSA'' or ``Radioactive--SCO'', as appropriate, and 
nonbulk packages that contain a hazardous substance must also be 
stenciled or otherwise marked with the letters ``RQ'' in association 
with the above description; and
    (vii) Except when transported in an industrial package in accordance 
with Table 8, transportation by aircraft is prohibited.
    (b) Except as provided in paragraph (c) of this section, LSA 
material and SCO must be packaged as follows:
    (1) In an industrial package (IP-1, IP-2 or IP-3; Sec. 173.411), 
subject to the limitations of Table 8;
    (2) For domestic transportation only, in a DOT Specification 7A 
(Sec. 178.350 of this subchapter) Type A package. The requirements of 
Sec. 173.412 (a), (b), (c) and (k) do not apply;

[[Page 572]]

    (3) For domestic transportation only, in a strong, tight package 
that prevents leakage of the radioactive content under normal conditions 
of transport. In addition to the requirements of paragraph (a) of this 
section, the following requirements must be met:
    (i) The shipment must be exclusive use;
    (ii) The quantity of Class 7 (radioactive) material in each 
packaging may not exceed an A2 quantity;
    (4) For domestic transportation only, in a packaging that complies 
with the provisions of 10 CFR 71.52, and is transported in exclusive 
use; or
    (5) Any Type B, B(U) or B(M) packaging authorized pursuant to 
Sec. 173.416.
    (c) LSA-I and SCO-I (see Sec. 173.403), unless packaged in 
accordance with paragraph (b) of this section, must be packaged in bulk 
packagings in accordance with this paragraph. The shipment must be, in 
addition to complying with the applicable requirements of paragraph (a) 
of this section, exclusive use:
    (1) Solids. Packages must be strong tight packagings, meeting the 
requirements of subpart B of this Part. The requirements of Sec. 173.410 
do not apply.
    (2) Liquids. Liquids must be transported in the following 
packagings:
    (i) Specification 103CW, 111A60W7 (Secs. 179.200, 179.201, 179.202 
of this subchapter) tank cars. Bottom openings in tanks are prohibited; 
or
    (ii) Specification MC 310, MC 311, MC 312, MC 331 or DOT 412 
(Sec. 178.348 or Sec. 178.337 of this subchapter) cargo tank motor 
vehicles. Bottom outlets are not authorized. Trailer-on-flat-car service 
is not authorized.
    (d) Except for transportation by aircraft, LSA material and SCO that 
conform to the provisions specified in 10 CFR 20.2005 are excepted from 
all requirements of this subchapter pertaining to Class 7 (radioactive) 
materials when offered for transportation for disposal or recovery. A 
material which meets the definition of another hazard class is subject 
to the provisions of this subchapter relating to that hazard class.
    (e) LSA and SCO that exceed the packaging limits in this section 
must be packaged in accordance with 10 CFR part 71.
    (f) Tables 8 and 9 are as follows:

Table 8.--Industrial Package Integrity Requirements for LSA Material and
                                   SCO                                  
------------------------------------------------------------------------
                                          Industrial packaging type     
                                    ------------------------------------
              Contents                Exclusive use    Nonexclusive use 
                                         shipment          shipment     
------------------------------------------------------------------------
LSA-I:                                                                  
    Solid..........................  IP-1             IP-1              
    Liquid.........................  IP-1             IP-2              
LSA-II:                                                                 
    Solid..........................  IP-2             IP-2              
    Liquid and gas.................  IP-2             IP-3              
LSA-III............................  IP-2             IP-3              
SCO-I..............................  IP-1             IP-1              
SCO-II.............................  IP-2             IP-2              
------------------------------------------------------------------------


      TABLE 9--Conveyance Activity Limits for LSA Material and SCO      
------------------------------------------------------------------------
           Nature of material             Activity limit for conveyances
------------------------------------------------------------------------
LSA-I..................................  No limit.                      
LSA-II and LSA-III; noncombustible       No limit.                      
 solids.                                                                
LSA-II and LSA-III; Combustible solids   100 A2                         
 and all liquids and gases.                                             
SCO....................................  100 A2                         
------------------------------------------------------------------------

[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20752, May 8, 1996]



Sec. 173.428  Empty Class 7 (radioactive) materials packaging.

    A packaging which previously contained Class 7 (radioactive) 
materials and has been emptied of contents as far as practical, is 
excepted from the shipping paper and certification, marking and labeling 
requirements of this subchapter, and from requirements of this chapter, 
provided that--
    (a) The packaging meets the requirements of Sec. 173.421(a) (2), 
(3), and (5) of this subpart;
    (b) The packaging is in unimpaired condition and is securely closed 
so that there will be no leakage of Class 7 (radioactive) material under 
conditions normally incident to transportation;
    (c) Internal contamination does not exceed 100 times the limits in 
Sec. 173.443(a);
    (d) Any labels previously applied in conformance with Subpart E of 
Part 172 of this subchapter are removed, obliterated, or covered and the 
``Empty''

[[Page 573]]

label prescribed in Sec. 172.450 of this subchapter is affixed to the 
packaging; and
    (e) The packaging is prepared for shipment as specified in 
Sec. 173.422.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20752, May 8, 1996]



Sec. 173.431  Activity limits for Type A and Type B packages.

    (a) Except for LSA material and SCO, a Type A package may not 
contain a quantity of Class 7 (radioactive) materials greater than 
A1 for special form Class 7 (radioactive) material or 
A2 for normal form Class 7 (radioactive) material as listed 
in Sec. 173.435, or, for Class 7 (radioactive) materials not listed in 
Sec. 173.435, as determined in accordance with Sec. 173.433.
    (b) The limits on activity contained in a Type B, Type B(U), or Type 
B(M) package are those prescribed in Secs. 173.416 and 173.417, or in 
the applicable approval certificate under Secs. 173.471, 173.472 or 
173.473.



Sec. 173.433  Requirements for determining A1 and A2 values for radionuclides and for the listing of radionuclides on shipping papers and 
          labels.

    (a) Values of A1 and A2 for individual 
radionuclides that are the basis for many activity limits elsewhere in 
this subchapter are given in the table in Sec. 173.435.
    (b) For individual radionuclides whose identities are known, but 
which are not listed in the table in Sec. 173.435, the determination of 
the values of A1 and A2 requires approval from the 
Associate Administrator for Hazardous Materials Safety except that the 
values of A1 and A2 in Table 10 may be used 
without obtaining approval from Associate Administrator for Hazardous 
Materials Safety.
    (c) In calculating A1 and A2 values for a 
radionuclide not listed in the table in Sec. 173.435, a single 
radioactive decay chain in which the radionuclides are present in their 
naturally-occurring proportions, and in which no daughter nuclide has a 
half life either longer than 10 days or longer than that of the parent 
nuclide, will be considered as a single radionuclide, and the activity 
to be taken into account and the A1 or A2 value to 
be applied will be those corresponding to the parent nuclide of that 
chain. Otherwise, the parent and daughter nuclides will be considered as 
a mixture of different nuclides.
    (d) Mixtures of radionuclides whose identities and respective 
activities are known, must conform to the following conditions:
    (1) For special form Class 7 (radioactive) material:
    [GRAPHIC] [TIFF OMITTED] TR28SE95.006
    

Where B(i) is the activity of radionuclide i and A1 (i) is 
the A1 value for radionuclide i; or
    (2) For other forms of Class 7 (radioactive) material, either--
    [GRAPHIC] [TIFF OMITTED] TR28SE95.007
    
      

Where B(i) is the activity of radionuclide i and A2(i) is the 
A2 value for radionuclide i; or
[GRAPHIC] [TIFF OMITTED] TR28SE95.008

      

where f(i) is the fraction of activity of nuclide i in the mixture and 
A2(i) is the appropriate A2 value for nuclide i.
    (e) When the identity of each nuclide is known but the individual 
activities of some of the radionuclides are not known, the radionuclides 
may be grouped and the lowest A1 or A2 value, as 
appropriate, for the radionuclides in each group may be used in applying 
the formulas in paragraph (d) of this section. Groups may be based on 
the total alpha activity and the total beta/gamma activity when these 
are known, using the lowest A1 or A2 values for 
the alpha emitters or beta/gamma emitters, respectively.
    (f) Shipping papers and labeling. (1) For mixtures of radionuclides, 
the radionuclides (n) that must be shown on shipping papers and labels 
in accordance with Secs. 172.203 and 172.403 of this subchapter, 
respectively, must be

[[Page 574]]

determined on the basis of the following formula:
[GRAPHIC] [TIFF OMITTED] TR28SE95.009


Where n + m represents all the radionuclides in the mixture, m are the 
radionuclides that do not need to be considered, ai is the 
activity of radionuclide i in the mixture, and Ai is the 
A1 or A2 value, as appropriate for radionuclide i.
    (g) Table 10 is as follows:

                                     Table 10.--General Values for A1 and A2                                    
----------------------------------------------------------------------------------------------------------------
                                                                     A1                         A2              
                         Contents                          -----------------------------------------------------
                                                              (TBq)       (Ci)         (TBq)           (Ci)     
----------------------------------------------------------------------------------------------------------------
Only beta or gamma emitting nuclides are known to be                                                            
 present..................................................        0.2          5            0.02             0.5
Alpha emitting nuclides are known to be present or                                                              
 relevant data are available..............................       0.10       2.70        2 x 10-5     5.41 x 10-4
----------------------------------------------------------------------------------------------------------------

      


Sec. 173.434    Activity-mass relationships for uranium and natural 
        thorium.

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                                                               Specific activity                
     Thorium and uranium enrichment1(Wt% 235 U present)      ---------------------------------------------------
                                                                TBq/gram    Grams/Tbq     Ci/gram      Grams/Ci 
----------------------------------------------------------------------------------------------------------------
0.45 (depleted).............................................   1.9 x 10-8    5.4 x 107   5.0 x 10-7    2.0 x 106
0.72 (natural)..............................................   2.6 x 10-8    3.8 x 107   7.1 x 10-7    1.4 x 106
1.0.........................................................   2.8 x 10-8    3.6 x 107   7.6 x 10-7    1.3 x 106
1.5.........................................................   3.7 x 10-8    2.7 x 107   1.0 x 10-6    1.0 x 106
5.0.........................................................   1.0 x 10-7    1.0 x 107   2.7 x 10-6    3.7 x 105
10.0........................................................   1.8 x 10-7    5.6 x 106   4.8 x 10-6    2.1 x 105
20.0........................................................   3.7 x 10-7    2.7 x 106   1.0 x 10-5    1.0 x 105
35.0........................................................   7.4 x 10-7    1.4 x 106   2.0 x 10-5    5.0 x 104
50.0........................................................   9.3 x 10-7    1.1 x 106   2.5 x 10-5    4.0 x 104
90.0........................................................   2.1 x 10-6    4.7 x 105   5.8 x 10-5    1.7 x 104
93.0........................................................   2.6 x 10-6    3.9 x 105   7.0 x 10-5    1.4 x 104
95.0........................................................   3.4 x 10-6    3.0 x 105   9.1 x 10-5    1.1 x 104
Natural thorium.............................................   8.1 x 10-9    1.2 x 108   2.2 x 10-7   4.6 x 106 
----------------------------------------------------------------------------------------------------------------
\1\ The figures for uranium include representative values for the activity of uranium-234 which is concentrated 
  during the enrichment process. The activity for thorium includes the equilibrium concentration of thorium-228.

      


Sec. 173.435    Table of A1 and A2 values for 
        radionuclides.

[[Page 575]]



                                                                                                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                               Specific activity                
     Symbol of  radionuclide       Element and atomic        A1 (TBq)               A1 (Ci)              A2 (TBq)               A2 (Ci)       --------------------------------------------------
                                         number                                                                                                           (TBq/g)                   (Ci/g)      
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Ac-225..........................  Actinium(89).......  0.6                   16.2                  1 x 10-2              0.270                 2.1 x 103                     5.8 x 104          
Ac-227..........................                       40                    1080                  2 x 10-5              5.41 x 10-4           2.7                           7.2 x 101          
Ac-228..........................                       0.6                   16.2                  0.4                   10.8                  8.4 x 104                     2.2 x 106          
Ag-105..........................  Silver(47).........  2                     54.1                  2                     54.1                  1.1 x 103                     3.0 x 104          
Ag-108m.........................                       0.6                   16.2                  0.6                   16.2                  9.7 x 10-1                    2.6 x 101          
Ag-110m.........................  ...................  0.4                   10.8                  0.4                   10.8                  1.8 x 102                     4.7 x 103          
Ag-111..........................                       0.6                   16.2                  0.5                   13.5                  5.8 x 103                     1.6 x 105          
Al-26...........................  Aluminum(13).......  0.4                   10.8                  0.4                   10.8                  7.0 x 10-4                    1.9 x 10-2         
Am-241..........................  Americium(95)......  2                     54.1                  2 x 10-4              5.41 x 10-3           1.3 x 101                     3.4                
Am-242m.........................  ...................  2                     54.1                  2 x 10-4              5.4.1 x 10-3          3.6 x 10-1                    1.0 x 101          
Am-243..........................                       2                     54.1                  2 x 10-4              5.41 x 10-3           7.4 x 10-3                    2.0 x 10-1         
Ar-37...........................  Argon(18)..........  40                    1080                  40                    1080                  3.7 x 103                     9.9 x 104          
Ar-39...........................  ...................  20                    541                   20                    541                   1.3                           3.4 x 101          
Ar-41...........................                       0.6                   16.2                  0.6                   16.2                  1.5 x 106                     4.2 x 107          
Ar-42...........................                       0.2                   5.41                  0.2                   5.41                  9.6                           2.6 x 102          
As-72...........................  Arsenic(33)........  0.2                   5.41                  0.2                   5.41                  6.2 x 104                     1.7 x 106          
As-73...........................                       40                    1080                  40                    1080                  8.2 x 102                     2.2 x 104          
As-74...........................                       1                     27.0                  0.5                   13.5                  3.7 x 103                     9.9 x 104          
As-76...........................                       0.2                   5.41                  0.2                   5.41                  5.8 x 104                     1.6 x 106          
As-77...........................                       20                    541                   0.5                   13.5                  3.9 x 104                     1.0 x 106          
At-211..........................  Astatine(85).......  30                    811                   2                     54.1                  7.6 x 104                     2.1 x 106          
Au-193..........................  Gold(79)...........  6                     162                   6                     162                   3.4 x 104                     9.2 x 105          
Au-194..........................                       1                     27.0                  1                     27.0                  1.5 x 104                     4.1 x 105          
Au-195..........................                       10                    270                   10                    270                   1.4 x 102                     3.7 x 103          
Au-196..........................                       2                     54.1                  2                     54.1                  4.0 x 103                     1.1 x 105          
Au-198..........................                       3                     81.1                  0.5                   13.5                  9.0 x 103                     2.4 x 105          
Au-199..........................                       10                    270                   0.9                   24.3                  7.7 x 103                     2.1 x 105          
Ba-131..........................  Barium(56).........  2                     54.1                  2                     54.1                  3.1 x 103                     8.4 x 104          
Ba-133m.........................                       10                    270                   0.9                   24.3                  2.2 x 104                     6.1 x 105          
Ba-133..........................                       3                     81.1                  3                     81.1                  9.4                           2.6 x 102          
Ba-140..........................                       0.4                   10.8                  0.4                   10.8                  2.7 x 103                     7.3 x 104          
Be-7............................  Beryllium(4).......  20                    541                   20                    541                   1.3 x 104                     3.5 x 105          
Be-10...........................                       20                    541                   0.5                   13.5                  8.3 x 10-4                    2.2 x 10-2         
Bi-205..........................  Bismuth(83)........  0.6                   16.2                  0.6                   16.2                  1.5 x 103                     4.2 x 104          
Bi-206..........................                       0.3                   8.11                  0.3                   8.11                  3.8 x 103                     1.0 x 105          
Bi-207..........................                       0.7                   18.9                  0.7                   18.9                  1.9                           5.2 x 101          
Bi-210m.........................                       0.3                   8.11                  3 x 10-2              0.811                 2.1 x 10-5                    5.7 x 10-4         
Bi-210..........................                       0.6                   16.2                  0.5                   13.5                  4.6 x 103                     1.2 x 105          
Bi-212..........................                       0.3                   8.11                  0.3                   8.11                  5.4 x 105                     1.5 x 107          
Bk-247..........................  Berkelium(97)......  2                     54.1                  2 x 10-4              5.41 x 10-3           3.8 x 10-2                    1.0                
Bk-249..........................                       40                    1080                  8 x 10-2              2.16                  6.1 x 101                     1.6 x 103          
Br-76...........................  Bromine(35)........  0.3                   8.11                  0.3                   8.11                  9.4 x 104                     2.5 x 106          
Br-77...........................                       3                     81.1                  3                     81.1                  2.6 x 104                     7.1 x 105          
Br-82...........................  ...................  0.4                   10.8                  0.4                   10.8                  4.0 x 104                     1.1 x 106          
C-11............................  Carbon(6)..........  1                     27                    0.5                   13.5                  3.1 x 107                     8.4 x 108          
C-14............................                       40                    1080                  2                     54.1                  1.6 x 10-1                    4.5                

[[Page 576]]

                                                                                                                                                                                                
Ca-41...........................  Calcium(20)........  40                    1080                  40                    1080                  3.1 x 10-3                    8.5 x 10-2         
Ca-45...........................                       40                    1080                  0.9                   24.3                  6.6 x 102                     1.8 x 104          
Ca-47...........................                       0.9                   24.3                  0.5                   13.5                  2.3 x 104                     6.1 x 105          
Cd-109..........................  Cadmium(48)........  40                    1080                  1                     27.0                  9.6 x 101                     2.6 x 103          
Cd-113m.........................                       20                    541                   9 x 10-2              2.43                  8.3 x 104                     2.2 x 102          
Cd-115m.........................                       0.3                   8.11                  0.3                   8.11                  9.4 x 102                     2.5 x 104          
Cd-115..........................                       4                     108                   0.5                   13.5                  1.9 x 104                     5.1 x 105          
Ce-139..........................  Cerium(58).........  6                     162                   6                     162                   2.5 x 1026                    .8 x 103           
Ce-141..........................                       10                    270                   0.5                   13.5                  1.1 x 103                     2.8 x 104          
Ce-143..........................                       0.6                   16.2                  0.5                   13.5                  2.5 x 104                     6.6 x 105          
Ce-144..........................                       0.2                   5.41                  0.2                   5.41                  1.2 x 102                     3.2 x 103          
Cf-248..........................  Californium (98)...  30                    811                   3 x 10-3              8.11 x 10-2           5.8 x 101                     1.6 x 103          
Cf-249..........................                       2                     54.1                  2 x 10-4              5.41 x 10-3           1.5 x 10-1                    4.1                
Cf-250..........................                       5                     135                   5 x 10-4              1.35 x 10-2           4.0                           1.1 x 102          
Cf-251..........................                       2                     54.1                  2 x 10-4              5.41 x 10-3           5.9 x 10-2                    1.6                
Cf-252..........................                       0.1                   2.70                  1 x 10-3              2.70 x 10-2           2.0 x 101                     5.4 x 102          
Cf-253..........................                       40                    1080                  6 x 10-2              1.62                  1.1 x 103                     2.9 x 104          
Cf-254..........................                       3 x 10-3              8.11 x 10-2           6 x 10-4              1.62 x 10-2           3.1 x 102                     8.5 x 103          
Cl-36...........................  Chlorine (17)......  20                    541                   0.5                   13.5                  1.2 x 10-3                    3.3 x 10-2         
Cl-38...........................                       0.2                   5.41                  0.2                   5.41                  4.9 x 106                     1.3 x 108          
Cm-240..........................  Curium(96).........  40                    1080                  2 x 10-2              0.541                 7.5 x 102                     2.0 x 104          
Cm-241..........................                       2                     54.1                  0.9                   24.3                  6.1 x 102                     1.7 x 104          
Cm-242..........................                       40                    1080                  1 x 10-2              0.270                 1.2 x 102                     3.3 x 103          
Cm-243..........................                       3                     81.1                  3 x 10-4              8.11 x 10-3           1.9                           5.2 x 101          
Cm-244..........................  ...................  4                     108                   4 x 10-4              1.08 x 10-2           3.0                           8.1 x 105          
Cm-245..........................                       2                     54.1                  2 x 10-4              5.41 x 10-3           6.4 x 10-3                    1.7 x 10-1         
Cm-246..........................                       2                     54.1                  2 x 10-4              5.41 x 10-3           1.1 x 10-2                    3.1 x 10-1         
Cm-247..........................                       2                     54.1                  2 x 10-4              5.41 x 10-3           3.4 x 10-6                    9.3 x 10-5         
Cm-248..........................                       4 x 10-2              1.08                  5 x 10-5              1.35 x 10-3           1.6 x 10-4                    4.2 x 10-3         
Co-55...........................  Cobalt(27).........  0.5                   13.5                  0.5                   13.5                  1.1 x 105                     3.1 x 106          
Co-56...........................                       0.3                   8.11                  0.3                   8.11                  1.1 x 103                     3.0 x 104          
Co-57...........................                       8                     216                   8                     216                   3.1 x 102                     8.4 x 103          
Co-58m..........................                       40                    1080                  40                    1080                  2.2 x 105                     5.9 x 106          
Co-58...........................                       1                     27.0                  1                     27.0                  1.2 x 103                     3.2 x 104          
Co-60...........................                       0.4                   10.8                  0.4                   10.8                  4.2 x 101                     1.1 x 103          
Cr-51...........................  Chromium(24).......  30                    811                   30                    811                   3.4 x 103                     9.2 x 104          
Cs-129..........................  Cesium(55).........  4                     108                   4                     108                   2.8 x 104                     7.6 x 105          
Cs-131..........................                       40                    1080                  40                    1080                  3.8 x 103                     1.0 x 105          
Cs-132..........................                       1                     27.0                  1                     27.0                  5.7 x 103                     1.5 x 105          
Cs-134m.........................                       40                    1080                  9                     243                   3.0 x 105                     8.0 x 106          
Cs-134..........................                       0.6                   16.2                  0.5                   13.5                  4.8 x 101                     1.3 x 103          
Cs-135..........................                       40                    1080                  0.9                   24.3                  4.3 x 10-5                    1.2 x 10-3         
Cs-136..........................                       0.5                   13.5                  0.5                   13.5                  2.7 x 103                     7.3 x 104          
Cs-137..........................                       2                     54.1                  0.5                   13.5                  3.2                           8.7 x 101          
Cu-64...........................  Copper(29).........  5                     135                   0.9                   24.3                  1.4 x 105                     3.9 x 106          
Cu-67...........................                       9                     243                   0.9                   24.3                  2.8 x 104                     7.6 x 105          

[[Page 577]]

                                                                                                                                                                                                
Dy-159..........................  Dysprosium(66).....  20                    541                   20                    541                   2.1 x 102                     5.7 x 103          
Dy-165..........................                       0.6                   16.2                  0.5                   13.5                  3.0 x 105                     8.2 x 106          
Dy-166..........................                       0.3                   8.11                  0.3                   8.11                  8.6 x 103                     2.3 x 105          
Er-169..........................  Erbium(68).........  40                    1080                  0.9                   24.3                  3.1 x 103                     8.3 x 104          
Er-171..........................                       0.6                   16.2                  0.5                   13.5                  9.0 x 104                     2.4 x 106          
Es-253..........................  Einsteinium(99)a...  200                   5400                  2.1 x 10-2            5.4 x 100-1           ............................  ...................
Es-254..........................                       30                    811                   3 x 10-3              8.11 x 10-2                                         ...................
Es-254m.........................                       0.6                   16.2                  0.4                   10.8                                                ...................
Es-255..........................                       ....................                        ....................                        ............................  ...................
Eu-147..........................  Europium(63).......  2                     54.1                  2                     54.1                  1.4 x 103                     3.7 x 104          
Eu-148..........................                       0.5                   13.5                  0.5                   13.5                  6.0 x 102                     1.6 x 104          
Eu-149..........................                       20                    541                   20                    541                   3.5 x 102                     9.4 x 103          
Eu-150..........................  ...................  0.7                   18.9                  0.7                   18.9                  6.1 x 104                     1.6 x 106          
Eu-152m.........................                       0.6                   16.2                  0.5                   13.5                  8.2 x 104                     2.2 x 106          
Eu-152..........................                       0.9                   24.3                  0.9                   24.3                  6.5                           1.8 x 102          
Eu-154..........................                       0.8                   21.6                  0.5                   13.5                  9.8                           2.6 x 102          
Eu-155..........................  ...................  20                    541                   2                     54.1                  1.8 x 101                     4.9 x 102          
Eu-156..........................                       0.6                   16.2                  0.5                   13.5                  2.0 x 103                     5.5 x 104          
F-18............................  Fluorine(9)........  1                     27.0                  0.5                   13.5                  3.5 x 106                     9.5 x 107          
Fe-52...........................  Iron(26)...........  0.2                   5.41                  0.2                   5.41                  2.7 x 105                     7.3 x 106          
Fe-55...........................                       40                    1080                  40                    1080                  8.8 x 101                     2.4 x 103          
Fe-59...........................  ...................  0.8                   21.6                  0.8                   21.6                  1.8 x 103                     5.0 x 104          
Fe-60...........................                       40                    1080                  0.2                   5.41                  7.4 x 10-4                    2.0 x 10-2         
Fm-255..........................  Fermium(100)b......  40                    1080                  0.8                   21.6                                                ...................
Fm-257..........................  ...................  10                    270                   8 x 10-3              21.6 x 10-1           ............................  ...................
Ga-67...........................  Gallium(31)........  6                     162                   6                     162                   2.2 x 104                     6.0 x 105          
Ga-68...........................                       0.3                   8.11                  0.3                   8.11                  1.5 x 106                     4.1 x 107          
Ga-72...........................                       0.4                   10.8                  0.4                   10.8                  1.1 x 105                     3.1 x 106          
Gd-146..........................  Gadolinium(64).....  0.4                   10.8                  0.4                   10.8                  6.9 x 102                     1.9 x 104          
Gd-148..........................  ...................  3                     81.1                  3 x 10-4              8.11 x 10-3           1.2                           3.2 x 101          
Gd-153..........................                       10                    270                   5                     135                   1.3 x 102                     3.5 x 103          
Gd-159..........................                       4                     108                   0.5                   13.5                  3.9 x 104                     1.1 x 106          
Ge-68...........................  Germanium(32)......  0.3                   8.11                  0.3                   8.11                  2.6 x 102                     7.1 x 103          
Ge-71...........................                       40                    1080                  40                    1080                  5.8 x 103                     1.6 x 105          
Ge-77...........................                       0.3                   8.11                  0.3                   8.11                  1.3 x 105                     3.6 x 106          
H-3.............................  Hydrogen(1)SeeT-                           ....................                        ....................                                ...................
                                   Tritium.                                                                                                                                                     
Hf-172..........................  Hafnium(72)........  0.5                   13.5                  0.3                   8.11                  4.1 x 101                     1.1 x 103          
Hf-175..........................                       3                     81.1                  3                     81.1                  3.9 x 102                     1.1 x 104          
Hf-181..........................                       2                     54.1                  0.9                   24.3                  6.3 x 102                     1.7 x 104          
Hf-182..........................                       4                     108                   3 x 10-2              0.811                 8.1 x 10-6                    2.2 x 10-4         
Hg-194..........................  Mercury(80)........  1                     27.0                  1                     27.0                  1.3 x 10-1                    3.5                
Hg-195m.........................                       5                     135                   5                     135                   1.5 x 104                     4.0 x 105          
Hg-197m.........................                       10                    270                   0.9                   24.3                  2.5 x 104                     6.7 x 105          
Hg-197..........................                       10                    270                   10                    270                   9.2 x 103                     2.5 x 105          
Hg-203..........................                       4                     108                   0.9                   24.3                  5.1 x 102                     1.4 x 104          
Ho-163..........................  Holmium(67)........  40                    1080                  40                    1080                  2.7                           7.6 x 101          
Ho-166m.........................                       0.6                   16.2                  0.3                   8.11                  6.6 x 10-2                    1.8                
Ho-166..........................                       0.3                   8.11                  0.3                   8.11                  2.6 x 104                     7.0 x 105          
I-123...........................  Iodine(53).........  6                     162                   6                     162                   7.1 x 104                     1.9 x 106          
I-124...........................                       0.9                   24.3                  0.9                   24.3                  9.3 x 103                     2.5 x 105          

[[Page 578]]

                                                                                                                                                                                                
I-125...........................                       20                    541                   2                     54.1                  6.4 x 102                     1.7 x 104          
I-126...........................                       2                     54.1                  0.9                   24.3                  2.9 x 103                     8.0 x 104          
I-129...........................                       Unlimited             Unlimited             Unlimited             Unlimited             6.5 x 10-6                    1.8 x 10-4         
I-131...........................                       3                     81.1                  0.5                   13.5                  4.6 x 103                     1.2 x 105          
I-132...........................                       0.4                   10.8                  0.4                   10.8                  3.8 x 105                     1.0 x 107          
I-133...........................                       0.6                   16.2                  0.5                   13.5                  4.2 x 104                     1.1 x 106          
I-134...........................                       0.3                   8.11                  0.3                   8.11                  9.9 x 105                     2.7 x 107          
I-135...........................                       0.6                   16.2                  0.5                   13.5                  1.3 x 105                     3.5 x 106          
In-111..........................  Indium(49).........  2                     54.1                  2                     54.1                  1.5 x 104                     4.2 x 105          
In-113m.........................                       4                     108                   4                     108                   6.2 x 105                     1.7 x 107          
In-114m.........................                       0.3                   8.11                  0.3                   8.11                  8.6 x 102                     2.3 x 104          
In-115m.........................                       6                     162                   0.9                   24.3                  2.2 x 105                     6.1 x 106          
Ir-189..........................  Iridium(77)........  10                    270                   10                    270                   1.9 x 103                     5.2 x 104          
Ir-190..........................                       0.7                   18.9                  0.7                   18.9                  2.3 x 103                     6.2 x 104          
Ir-192..........................                       1                     27.0                  0.5                   13.5                  3.4 x 102                     9.2 x 103          
Ir-193m.........................                       10                    270                   10                    270                   2.4 x 103                     6.4 x 104          
Ir-194..........................                       0.2                   5.41                  0.2                   5.41                  3.1 x 104                     8.4 x 105          
K-40............................  Potassium(19)......  0.6                   16.2                  0.6                   16.2                  2.4 x 10-7                    6.4 x 10-6         
K-42............................                       0.2                   5.41                  0.2                   5.41                  2.2 x 105                     6.0 x 106          
K-43............................                       1.0                   27.0                  0.5                   13.5                  1.2 x 105                     3.3 x 106          
Kr-81...........................  Krypton(36)........  40                    1080                  40                    1080                  7.8 x 10-4                    2.1 x 10-2         
Kr-85m..........................                       6                     162                   6                     162                   3.0 x 105                     8.2 x 106          
Kr-85...........................                       20                    541                   10                    270                   1.5 x 101                     3.9 x 102          
Kr-87...........................                       0.2                   5.41                  0.2                   5.41                  1.0 x 106                     2.8 x 107          
La-137..........................  Lanthanum(57)......  40                    1080                  2                     54.1                  1.6 x 10-3                    4.4 x 10-2         
La-140..........................                       0.4                   10.8                  0.4                   10.8                  2.1 x 104                     5.6 x 105          
Lu-172..........................  Lutetium(71).......  0.5                   13.5                  0.5                   13.5                  4.2 x 103                     1.1 x 105          
Lu-173..........................                       8                     216                   8                     216                   5.6 x 101                     1.5 x 103          
Lu-174m.........................                       20                    541                   8                     216                   2.0 x 102                     5.3 x 103          
Lu-74...........................                       8                     216                   4                     108                   2.3 x 101                     6.2 x 102          
Lu-177..........................                        30                   811                   0.9                   24.3                  4.1 x 103                     1.1 x 105          
MFP.............................  ...................  (see Sec.  173.433)   ....................  (see Sec.  173.433)   ....................  ............................  ...................
Mg-28...........................  Magnesium(12)......  0.2                   5.41                  0.2                   5.41                  2.0 x 105                     5.4 x 106          
Mn-52...........................  Manganese(25)......  0.3                   8.11                  0.3                   8.11                  1.6 x 104                     4.4 x 105          
Mn-53...........................                       Unlimited             Unlimited             Unlimited             Unlimited             6.8 x 10-5                    1.8 x 10-3         
Mn-54...........................                       1                     27.0                  1                     27.0                  2.9 x 102                     7.7 x 103          
Mn-56...........................                       0.2                   5.41                  0.2                   5.41                  8.0 x 105                     2.2 x 107          
Mo-93...........................  Molybdenum(42).....  40                    1080                  7                     189                   4.1 x 10-2                    1.1                
Mo-99...........................                       0.6                   16.2                  0.5                   13.5c                 1.8 x 104                     4.8 x 105          
N-13............................  Nitrogen(7)........  0.6                   16.2                  0.5                   13.5                  5.4 x 107                     1.5 x 109          
Na-22...........................  Sodium(11).........  0.5                   13.5                  0.5                   13.5                  2.3 x 102                     6.3 x 103          
Na-24...........................                       0.2                   5.41                  0.2                   5.41                  3.2 x 105                     8.7 x 106          
Nb-92m..........................  Niobium(41)........  0.7                   18.9                  0.7                   18.9                  5.2 x 103                     1.4 x 105          
Nb-93m..........................                       40                    1080                  6                     162                   8.8                           2.4 x 102          
Nb-94...........................                       0.6                   16.2                  0.6                   16.2                  6.9 x 10-3                    1.9 x 10-1         
Nb-95...........................                       1                     27.0                  1                     27.0                  1.5 x 103                     3.9 x 104          

[[Page 579]]

                                                                                                                                                                                                
Nb-97...........................                       0.6                   16.2                  0.5                   13.5                  9.9 x 105                     2.7 x 107          
Nd-147..........................  Neodymium(60)......  4                     108                   0.5                   13.5                  3.0 x 103                     8.1 x 104          
Nd-149..........................                       0.6                   16.2                  0.5                   13.5                  4.5 x 105                     1.2 x 107          
Ni-59...........................  Nickel(28).........  40                    1080                  40                    1080                  3.0 x 10-3                    8.0 x 10-2         
Ni-63...........................                       40                    1080                  30                    811                   2.1                           5.7 x 101          
Ni-65...........................                       0.3                   8.11                  0.3                   8.11                  7.1 x 105                     1.9 x 107          
Np-235..........................  Neptunium(93)......  40                    1080                  40                    1080                  5.2 x 101                     1.4 x 103          
Np-236..........................                       7                     189                   1 x 10-3              2.70 x 10-2           4.7 x 10-4                    1.3 x 10-2         
Np-237..........................                       2                     54.1                  2 x 10-4              5.41 x 10-3           2.6 x 10-5                    7.1 x 10-4         
Np-239..........................                       6                     162                   0.5                   13.5                  8.6 x 103                     2.3 x 105          
Os-185..........................  Osmium(76).........  1                     27.0                  1                     27.0                  2.8 x 102                     7.5 x 103          
Os-191m.........................                       40                    1080                  40                    1080                  4.6 x 104                     1.3 x 106          
Os-191..........................                       10                    270                   0.9                   24.3                  1.6 x 103                     4.4 x 104          
Os-193..........................                       0.6                   16.2                  0.5                   13.5                  2.0 x 104                     5.3 x 105          
Os-194..........................                       0.2                   5.41                  0.2                   5.41                  1.1 x 101                     3.1 x 102          
P-32............................  Phosphorus(15).....  0.3                   8.11                  0.3                   8.11                  1.1 x 104                     2.9 x 105          
P-33............................                       40                    1080                  0.9                   24.3                  5.8 x 103                     1.6 x 105          
Pa-230..........................  Protactinium(91)...  2                     54.1                  0.1                   2.70                  1.2 x 103                     3.3 x 104          
Pa-231..........................                       0.6                   16.2                  6 x 10-5              1.62 x 10-3           1.7 x 10-3                    4.7 x 10-2         
Pa-233..........................                       5                     135                   0.9                   24.3                  7.7 x 102                     2.1 x 104          
Pb-201..........................  Lead(82)...........  1                     27.0                  1                     27.0                  6.2 x 104                     1.7 x 106          
Pb-202..........................                       40                    1080                  2                     54.1                  1.2 x 10-4                    3.4 x 10-3         
Pb-203..........................                       3                     81.1                  3                     81.1                  1.1 x 104                     3.0 x 105          
Pb-205..........................                       Unlimited             Unlimited             Unlimited             Unlimited             4.5 x 10-6                    1.2 x 10-4         
Pb-210..........................                       0.6                   16.2                  9 x 10-3              0.243                 2.8                           7.6 x 101          
Pb-212..........................                       0.3                   8.11                  0.3                   8.11                  5.1 x 104                     1.4 x 106          
Pd-103..........................  Palladium(46)......  40                    1080                  40                    1080                  2.8 x 103                     7.5 x 104          
Pd-107..........................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             1.9 x 10-5                    5.1 x 10-4         
Pd-109..........................                       0.6                   16.2                  0.5                   13.5                  7.9 x 104                     2.1 x 106          
Pm-143..........................  Promethium(61).....  3                     81.1                  3                     81.1                  1.3 x 102                     3.4 x 103          
Pm-144..........................                       0.6                   16.2                  0.6                   16.2                  9.2 x 101                     2.5 x 103          
Pm-145..........................                       30                    811                   7                     189                   5.2                           1.4 x 102          
Pm-147..........................                       40                    1080                  0.9                   24.3                  3.4 x 101                     9.3 x 102          
Pm-148m.........................                       0.5                   13.5                  0.5                   13.5                  7.9 x 102                     2.1 x 104          
Pm-149..........................                       0.6                   16.2                  0.5                   13.5                  1.5 x 104                     4.0 x 105          
Pm-151..........................                       3                     81.1                  0.5                   13.5                  2.7 x 104                     7.3 x 105          
Po-208..........................  Polonium(84).......  40                    1080                  2 x 10-2              0.541                 2.2 x 101                     5.9 x 102          
Po-209..........................                       40                    1080                  2 x 10-2              0.541                 6.2 x 10-1                    1.7 x 101          
Po-210..........................                       40                    1080                  2 x 10-2              0.541                 1.7 x 102                     4.5 x 103          
Pr-142..........................  Praseodymium (59)..  0.2                   5.41                  0.2                   5.41                  4.3 x 104                     1.2 x 106          
Pr-143..........................                       4                     108                   0.5                   13.5                  2.5 x 103                     6.7 x 104          
Pt-188..........................  Platinum(78).......  0.6                   16.2                  0.6                   16.2                  2.5 x 103                     6.8 x 104          
Pt-191..........................  ...................  3                     81.1                  3                     81.1                  8.7 x 103                     2.4 x 105          
Pt-193m.........................  ...................  40                    1080                  9                     243                   5.8 x 103                     1.6 x 105          
Pt-193..........................  ...................  40                    1080                  40                    1080                  1.4                           3.7 x 101          
Pt-195m.........................  ...................  10                    270                   2                     54.1                  6.2 x 103                     1.7 x 105          
Pt-197m.........................  ...................  10                    270                   0.9                   24.3                  3.7 x 105                     1.0 x 107          
Pt-197..........................  ...................  20                    541                   0.5                   13.5                  3.2 x 104                     8.7 x 105          
Pu-236..........................  Plutonium(94)......  7                     189                   7 x 10-4              1.89 x 10-2           2.0 x 101                     5.3 x 102          
Pu-237..........................  ...................  20                    541                   20                    541                   4.5 x 102                     1.2 x 104          

[[Page 580]]

                                                                                                                                                                                                
Pu-238..........................  ...................  2                     54.1                  2 x 10-4              5.41 x 10-3           6.3 x 10-1                    1.7 x 101          
Pu-239..........................  ...................  2                     54.1                  2 x 10-4              5.41 x 10-3           2.3 x 10-3                    6.2 x 10-2         
Pu-240..........................  ...................  2                     54.1                  2 x 10-4              5.41 x 10-3           8.4 x 10-3                    2.3 x 10-1         
Pu-241..........................  ...................  40                    1080                  1 x 10-2              0.270                 3.8                           1.0 x 102          
Pu-242..........................  ...................  2                     54.1                  2 x 10-4              5.41 x 10-3           1.5 x 10-4                    3.9 x 10-3         
Pu-244..........................  ...................  0.3                   8.11                  2 x 10-4              5.41 x 10-3           6.7 x 10-7                    1.8 x 10-5         
Ra-223..........................  Radium(88).........  0.6                   16.2                  3 x 10-2              0.811                 1.9 x 103                     5.1 x 104          
Ra-224..........................  ...................  0.3                   8.11                  6 x 10-2              1.62                  5.9 x 103                     1.6 x 105          
Ra-225..........................  ...................  0.6                   16.2                  2 x 10-2              0.541                 1.5 x 103                     3.9 x 104          
Ra-226..........................  ...................  0.3                   8.11                  2 x 10-2              0.541                 3.7 x 10-2                    1.0                
Ra-228..........................  ...................  0.6                   16.2                  4 x 10-2              1.08                  1.0 x 101                     2.7 x 102          
Rb-81...........................  Rubidium(37).......  2                     54.1                  0.9                   24.3                  3.1 x 105                     8.4 x 106          
Rb-83...........................  ...................  2                     54.1                  2                     54.1                  6.8 x 102                     1.8 x 104          
Rb-84...........................  ...................  1                     27.0                  0.9                   24.3                  1.8 x 103                     4.7 x 104          
Rb-86...........................  ...................  0.3                   8.11                  0.3                   8.11                  3.0 x 103                     8.1 x 104          
Rb-87...........................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             3.2 x 10-9                    8.6 x 10-8         
Rb (natural)....................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             6.7 x 106                     1.8 x 108          
Re-183..........................  Rhenium(75)........  5                     135                   5                     135                   3.8 x 102                     1.0 x 104          
Re-184m.........................  ...................  3                     81.1                  3                     81.1                  1.6 x 102                     4.3 x 103          
Re-184..........................  ...................  1                     27.0                  1                     27.0                  6.9 x 102                     1.9 x 104          
Re-186..........................  ...................  4                     108                   0.5                   13.5                  6.9 x 103                     1.9 x 105          
Re-187..........................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             1.4 x 10-9                    3.8 x 10-8         
Re-188..........................  ...................  0.2                   5.41                  0.2                   5.41                  3.6 x 104                     9.8 x 105          
Re-189..........................  ...................  4                     108                   0.5                   13.5                  2.5 x 104                     6.8 x 105          
Re (natural)....................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             ------------                  2.4 x 108          
Rh-99...........................  Rhodium(45)........  2                     54.1                  2                     54.1                  3.0 x 103                     8.2 x 104          
Rh-101..........................  ...................  4                     108                   4                     108                   4.1 x 101                     1.1 x 103          
Rh-102m.........................  ...................  2                     54.1                  0.9                   24.3                  2.3 x 102                     6.2 x 103          
Rh-102..........................  ...................  0.5                   13.5                  0.5                   13.5                  4.5 x 101                     1.2 x 103          
Rh-103m.........................  ...................  40                    1080                  40                    1080                  1.2 x 106                     3.3 x 107          
Rh-105..........................  ...................  10                    270                   0.9                   24.3                  3.1 x 104                     8.4 x 105          
Rn-222..........................  Radon(86)..........  0.2                   5.41                  4x10-3                0.108                 5.7x103                       1.5 x 105          
Ru-97...........................  Ruthenium(44)......  4                     108                   4                     108                   1.7 x 104                     4.6 x 105          
Ru-103..........................  ...................  2                     54.1                  0.9                   24.3                  1.2 x 103                     3.2 x 104          
Ru-105..........................  ...................  0.6                   16.2                  0.5                   13.5                  2.5 x 105                     6.7 x 106          
Ru-106..........................  ...................  0.2                   5.41                  0.2                   5.41                  1.2 x 102                     3.3 x 103          
S-35............................  Sulfur(16).........  40                    1080                  2                     54.1                  1.6 x 103                     4.3 x 104          
Sb-122..........................  Antimony(51).......  0.3                   8.11                  0.3                   8.11                  1.5 x 104                     4.0 x 105          
Sb-124..........................  ...................  0.6                   16.2                  0.5                   13.5                  6.5 x 102                     1.7 x 104          
Sb-125..........................  ...................  2                     54.1                  0.9                   24.3                  3.9 x 101                     1.0 x 103          
Sb-126..........................  ...................  0.4                   10.8                  0.4                   10.8                  3.1 x 103                     8.4 x 104          
Sc-44...........................  Scandium(21).......  0.5                   13.5                  0.5                   13.5                  6.7 x 105                     1.8 x 107          
Sc-46...........................  ...................  0.5                   13.5                  0.5                   13.5                  1.3 x 103                     3.4 x 104          
Sc-47...........................  ...................  9                     243                   0.9                   24.3                  3.1 x 104                     8.3 x 105          
Sc-48...........................  ...................  0.3                   8.11                  0.3                   8.11                  5.5 x 104                     1.5 x 106          
Se-75...........................  Selenium(34).......  3                     81.1                  3                     81.1                  5.4 x 102                     1.5 x 104          

[[Page 581]]

                                                                                                                                                                                                
Se-79...........................  ...................  40                    1080                  2                     54.1                  2.6 x 10-3                    7.0 x 10-2         
Si-31...........................  Silicon(14)........  0.6                   16.2                  0.5                   13.5                  1.4 x 106                     3.9 x 107          
Si-32...........................  ...................  40                    10800                 0.2                   5.41                  3.9                           1.1 x 102          
Sm-145..........................  Samarium(62).......  20                    541                   20                    541                   9.8 x 101                     2.610 3            
Sm-147..........................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             8.510-10                      2.310-8            
Sm-151..........................  ...................  40                    1080                  4                     108                   9.710-1                       2.6 x 101          
Sm-153..........................  ...................  4                     108                   0.5                   13.5                  1.6 x 104                     4.4 x 105          
Sn-113..........................  Tin(50)............  4                     108                   4                     108                   3.7 x 102                     1.0 x 104          
Sn-117m.........................  ...................  6                     162                   2                     54.1                  3.0 x 103                     8.2 x 104          
Sn-119m.........................  ...................  40                    1080                  40                    1080                  1.4 x 102                     3.7 x 103          
Sn-121m.........................  ...................  40                    1080                  0.9                   24.3                  2.0                           5.4 x 101          
Sn-123..........................  ...................  0.6                   16.2                  0.5                   13.5                  3.0 x 102                     8.2 x 103          
Sn-125..........................  ...................  0.2                   5.41                  0.2                   5.41                  4.0 x 103                     1.1 x 105          
Sn-126..........................  ...................  0.3                   8.11                  0.3                   8.11                  1.010-3                       2.810-2            
Sr-82...........................  Strontium(38)......  0.2                   5.41                  0.2                   5.41                  2.3 x 103                     6.2 x 104          
Sr-85m..........................  ...................  5                     135                   5                     135                   1.2 x 106                     3.3 x 107          
Sr-85...........................  ...................  2                     54.1                  2                     54.1                  8.8 x 102                     2.4 x 104          
Sr-87m..........................  ...................  3                     81.1                  3                     81.1                  4.8 x 105                     1.3 x 107          
Sr-89...........................  ...................  0.6                   16.2                  0.5                   13.5                  1.1 x 103                     2.9 x 104          
Sr-90...........................  ...................  0.2                   5.41                  0.1                   2.70                  5.1                           1.4 x 102          
Sr-91...........................  ...................  0.3                   8.11                  0.3                   8.11                  1.3 x 105                     3.6 x 106          
Sr-92...........................  ...................  0.8                   21.6                  0.5                   13.5                  4.7 x 105                     1.3 x 107          
T...............................  Tritium(1).........  40                    1080                  40                    1080                  3.6 x 102                     9.7 x 103          
Ta-178..........................  Tantalum(73).......  1                     27.0                  1                     27.0                  4.2 x 106                     1.1 x 108          
Ta-179..........................  ...................  30                    811                   30                    811                   4.1 x 101                     1.1 x 103          
Ta-182..........................  ...................  0.8                   21.6                  0.5                   13.5                  2.3 x 102                     6.2 x 103          
Tb-157..........................  Terbium(65)........  40                    1080                  10                    270                   5.610-1                       1.5 x 101          
Tb-158..........................  ...................  1                     27.0                  0.7                   18.9                  5.610-1                       1.5 x 101          
Tb-160..........................  ...................  0.9                   24.3                  0.5                   13.5                  4.2 x 102                     1.1 x 104          
Tc-95m..........................  Technetium(43).....  2                     54.1                  2                     54.1                  8.3 x 102                     2.2 x 104          
Tc-96m..........................  ...................  0.4                   10.8                  0.4                   10.8                  1.4 x 106                     3.8 x 107          
Tc-96...........................  ...................  0.4                   10.8                  0.4                   10.8                  1.2 x 104                     3.2 x 105          
Tc-97m..........................  ...................  40                    1080                  40                    1080                  5.6 x 102                     1.5 x 104          
Tc-97...........................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             5.2 x 10-5                    1.4 x 10-3         
Tc-98...........................  ...................  0.7                   18.9                  0.7                   18.9                  3.2 x 10-5                    8.7 x 10-4         
Tc-99m..........................  ...................  8                     216                   8                     216                   1.9 x 105                     5.3 x 106          
Tc-99...........................  ...................  40                    1080                  0.9                   24.3                  6.3 x 10-4                    1.7 x 10-2         
Te-118..........................  Tellurium(52)......  0.2                   5.41                  0.2                   5.41                  6.8 x 103                     1.8 x 105          
Te-121m.........................  ...................  5                     135                   5                     135                   2.6 x 102                     7.0 x 103          
Te-121..........................  ...................  2                     54.1                  2                     54.1                  2.4 x 103                     6.4 x 104          
Te-123m.........................  ...................  7                     189                   7                     189                   3.3 x 102                     8.9 x 103          
Te-125m.........................  ...................  30                    811                   9                     243                   6.7 x 102                     1.8 x 104          
Te-127m.........................  ...................  20                    541                   0.5                   13.5                  3.5 x 102                     9.4 x 103          
Te-127..........................  ...................  20                    541                   0.5                   13.5                  9.8 x 104                     2.6 x 106          
Te-129m.........................  ...................  0.6                   16.2                  0.5                   13.5                  1.1 x 103                     3.0 x 104          
Te-129..........................  ...................  0.6                   16.2                  0.5                   13.5                  7.7 x 105                     2.1 x 107          
Te-131m.........................  ...................  0.7                   18.9                  0.5                   13.5                  3.0 x 104                     8.0 x 105          
Te-132..........................  ...................  0.4                   10.8                  0.4                   10.8                  1.1 x 104                     3.0 x 105          
Th-227..........................  Thorium(90)........  9                     243                   1 x 10-2              0.270                 1.1 x 103                     3.1 x 104          
Th-228..........................  ...................  0.3                   8.11                  4 x 10-4              1.08 x 10-2           3.0 x 101                     8.2 x 102          

[[Page 582]]

                                                                                                                                                                                                
Th-229..........................  ...................  0.3                   8.11                  3 x 10-5              8.11 x 10-4           7.9 x 10-3                    2.1 x 10-1         
Th-230..........................  ...................  2                     54.1                  2 x 10-4              5.41 x 10-3           7.6 x 10-4                    2.1 x 10-2         
Th-231..........................  ...................  40                    1080                  0.9                   24.3                  2.0 x 104                     5.3 x 105          
Th-232..........................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             4.0 x 10-9                    1.1 x 10-7         
Th-234..........................  ...................  0.2                   5.41                  0.2                   5.41                  8.6 x 102                     2.3 x 104          
Th (natural)....................  ...................  Unlimited             Unlimited             Unlimited             Unlimited             8.1 x 10-9                    2.2 x 10-7         
Ti-44...........................  Titanium(22).......  0.5                   13.5                  0.2                   5.41                  6.4                           1.7 x 102          
Tl-200..........................  Thallium(81.1).....  0.8                   21.6                  0.8                   21.6                  2.2 x 104                     6.0 x 105          
Tl-201..........................  ...................  10                    270                   10                    270                   7.9 x 103                     2.1 x 105          
Tl-202..........................                       2                     54.1                  2                     54.1                  2.0 x 103                     5.3 x 104          
Tl-204..........................                       4                     108                   0.5                   13.5                  1.7 x 101                     4.6 x 102          
Tm-167..........................  Thulium(69)........  7                     189                   7                     189                   3.1 x 103                     8.5 x 104          
Tm-168..........................                       0.8                   21.6                  0.8                   21.6                  3.1 x 102                     8.3 x 103          
Tm-170..........................                       4                     108                   0.5                   13.5                  2.2 x 102                     6.0 x 103          
Tm-171..........................                       40                    1080                  10                    270                   4.0 x 101                     1.1 x 103          
U-230...........................  Uranium(92)........  40                    1080                  1 x 10-2              0.270                 1.0 x 103                     2.7 x 104          
U-232...........................                       3                     81.1                  3 x 10-4              8.11 x 10-3           8.3 x 10-1                    2.2 x 101          
U-233...........................                       10                    270                   1 x 10-3              2.70 x 10-2           3.6 x 10-4                    9.7 x 10-3         
U-234...........................                       10                    270                   1 x 10-3              2.70 x 10-2           2.3 x 10-4                    6.2 x 10-3         
U-235...........................                       Unlimited             Unlimited             Unlimited             Unlimited             8.0 x 10-8                    2.2 x 10-6         
U-236...........................                       10                    270                   1 x 10-3              2.70 x 10-2           2.4 x 10-6                    6.5 x 10-5         
U-238...........................                       Unlimited             Unlimited             Unlimited             Unlimited             1.2 x 10-8                    3.4 x 10-7         
U (natural).....................                       Unlimited             Unlimited             Unlimited             Unlimited             2.6 x 10-8                    7.1 x 10-7         
U (enriched 5% or less).........                       Unlimited             Unlimited             Unlimited             Unlimited             ------------                  (see Sec.  173.434)
U (enriched more than 5%).......                       10                    270                   1 x 10-3              2.70 x 10-2           ------------                  (see Sec.  173.434)
U (depleted)....................                       Unlimited             Unlimited             Unlimited             Unlimited             ------------                  (see Sec.  173.434)
V-48............................  Vanadium(23).......  0.3                   8.11                  0.3                   8.11                  6.3 x 103                     1.7 x 105          
V-49............................                       40                    1080                  40                    1080                  3.0 x 102                     8.1 x 103          
W-178...........................  Tungsten(74).......  1                     27.0                  1                     27.0                  1.3 x 10-3                    3.4 x 104          
W-181...........................                       30                    811                   30                    811                   2.2 x 102                     6.0 x 103          
W-185...........................                       40                    1080                  0.9                   24.3                  3.5 x 102                     9.4 x 103          
W-187...........................                       2                     54.1                  0.5                   13.5                  2.6 x 104                     7.0 x 105          
W-188...........................                       0.2                   5.41                  0.2                   5.41                  3.7 x 102                     1.0 x 104          
Xe-122..........................  Xenon(54)..........  0.2                   5.41                  0.2                   5.41                  4.8 x 104                     1.3 x 106          
Xe-123..........................                       0.2                   5.41                  0.2                   5.41                  4.4 x 105                     1.2 x 107          
Xe-127..........................                       4                     108                   4                     108                   1.0 x 103                     2.8 x 104          
Xe-131m.........................                       40                    1080                  40                    1080                  3.1 x 103                     8.4 x 104          
Xe-133..........................                       20                    541                   20                    541                   6.9 x 103                     1.9 x 105          
Xe-135..........................                       4                     108                   4                     108                   9.5 x 104                     2.6 x 106          
Y-87............................  Yttrium(39)........  2                     54.1                  2                     54.1                  1.7 x 104                     4.5 x 105          
Y-88............................                       0.4                   10.8                  0.4                   10.8                  5.2 x 102                     1.4 x 104          
Y-90............................                       0.2                   5.41                  0.2                   5.41                  2.0 x 104                     5.4 x 105          
Y-91m...........................                       2                     54.1                  2                     54.1                  1.5 x 106                     4.2 x 107          
Y-91............................                       0.3                   8.11                  0.3                   8.11                  9.1 x 102                     2.5 x 104          
Y-92............................                       0.2                   5.41                  0.2                   5.41                  3.6 x 105                     9.6 x 106          

[[Page 583]]

                                                                                                                                                                                                
Y-93............................                       0.2                   5.41                  0.2                   5.41                  1.2 x 105                     3.3 x 106          
Yb-169..........................  Ytterbium(70)......  3                     81.1                  3                     81.1                  8.9 x 102                     2.4 x 104          
Yb-175..........................                       30                    811                   0.9                   24.3                  6.6 x 103                     1.8 x 105          
Zn-65...........................  Zinc(30)...........  2                     54.1                  2                     54.1                  3.0 x 102                     8.2 x 103          
Zn-69m..........................                       2                     54.1                  0.5                   13.5                  1.2 x 105                     3.3 x 106          
Zn-69...........................                       4                     108                   0.5                   13.5                  1.8 x 106                     4.9 x 107          
Zr-88...........................  Zirconium(40)......  3                     81.1                  3                     81.1                  6.6 x 102                     1.8 x 104          
Zr-93...........................                       40                    1080                  0.2                   5.41                  9.3 x 10-5                    2.5 x 10-3         
Zr-95...........................                       1                     27.0                  0.9                   24.3                  7.9 x 102                     2.1 x 104          
Zr-97...........................                       0.3                   8.11                  0.3                   8.11                  7.1 x 104                     1.9 x 106          
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
a International shipments of Einsteinium require multilateral approval of A1 and A2 values.                                                                                                     
b International shipments of Fermium require multilateral approval of A1 and A2 values.                                                                                                         
c 20 Ci for Mo99 for domestic use.                                                                                                                                                              
MFP: For mixed fission products, use formula for mixtures or Table 10 in Sec.  173.433.                                                                                                         
Note: The activity per gram of radionuclide quantities are technical information that might not provide a direct relationship between the activity and total mass of material contained in a    
  package.                                                                                                                                                                                      

[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20752, May 8, 1996; Amdt. 173-253, 61 FR 27175, May 30, 1996]

[[Page 584]]



Sec. 173.441  Radiation level limitations.

    (a) Except as provided in paragraph (b) of this section, each 
package of Class 7 (radioactive) materials offered for transportation 
must be designed and prepared for shipment, so that under conditions 
normally incident to transportation, the radiation level does not exceed 
2 mSv/hour (200 mrem/hour) at any point on the external surface of the 
package, and the transport index does not exceed 10.
    (b) A package which exceeds the radiation level limits specified in 
paragraph (a) of this section must be transported by exclusive use 
shipment, and the radiation levels for such shipment may not exceed the 
following during transportation:
    (1) 2 mSv/h (200 mrem/h) on the external surface of the package 
unless the following conditions are met, in which case the limit is 10 
mSv/h (1000 mrem/h):
    (i) The shipment is made in a closed transport vehicle;
    (ii) The package is secured within the vehicle so that its position 
remains fixed during transportation; and
    (iii) There are no loading or unloading operations between the 
beginning and end of the transportation;
    (2) 2 mSv/h (200 mrem/h) at any point on the outer surfaces of the 
vehicle, including the top and underside of the vehicle; or in the case 
of a flat-bed style vehicle, at any point on the vertical planes 
projected from the outer edges of the vehicle, on the upper surface of 
the load or enclosure if used, and on the lower external surface of the 
vehicle;
    (3) 0.1 mSv/h (10 mrem/h) at any point 2 meters (6.6 feet) from the 
outer lateral surfaces of the vehicle (excluding the top and underside 
of the vehicle); or in the case of a flat-bed style vehicle, at any 
point 2 meters (6.6 feet) from the vertical planes projected by the 
outer edges of the vehicle (excluding the top and underside of the 
vehicle); and
    (4) 0.02 mSv/h (2 mrem/h) in any normally occupied space, except 
that this provision does not apply to private carriers if exposed 
personnel under their control wear radiation dosimetry devices as part 
of a radiation protection program that satisfies the requirements of 
subpart I of part 172 of this subchapter.
    (c) For shipments made under the provisions of paragraph (b) of this 
section, the offeror shall provide specific written instructions for 
maintenance of the exclusive use shipment controls to the carrier. The 
instructions must be included with the shipping paper information. The 
instructions must be sufficient so that, when followed, they will cause 
the carrier to avoid actions that will unnecessarily delay delivery or 
unnecessarily result in increased radiation levels or radiation 
exposures to transport workers or members of the general public.
    (d) Packages exceeding the radiation level or transport index 
prescribed in paragraph (a) of this section may not be transported by 
aircraft.



Sec. 173.442  Thermal limitations.

    A package of Class 7 (radioactive) material must be designed, 
constructed, and loaded so that--
    (a) The heat generated within the package by the radioactive 
contents will not, during conditions normally incident to transport, 
affect the integrity of the package; and
    (b) The temperature of the accessible external surfaces of the 
loaded package will not, assuming still air in the shade at an ambient 
temperature of 38 deg.C (100 deg.F), exceed either--
    (1) 50 deg.C (122 deg.F) in other than an exclusive use shipment; or
    (2) 85 deg.C (185 deg.F) in an exclusive use shipment.



Sec. 173.443  Contamination control.

    (a) The level of non-fixed (removable) radioactive contamination on 
the external surfaces of each package offered for transport must be kept 
as low as reasonably achievable. The level of non-fixed radioactive 
contamination may not exceed the limits set forth in Table 11 and must 
be determined by either:
    (1) Wiping an area of 300 square centimeters of the surface 
concerned with an absorbent material, using moderate pressure, and 
measuring the activity on the wiping material. Sufficient measurements 
must be taken in the most appropriate locations to yield a 
representative assessment of the non-

[[Page 585]]

fixed contamination levels. The amount of radioactivity measured on any 
single wiping material, when averaged over the surface wiped, may not 
exceed the limits set forth in Table 11 at any time during transport; or
    (2) Using other methods of assessment of equal or greater 
efficiency, in which case the efficiency of the method used must be 
taken into account and the non-fixed contamination on the external 
surfaces of the package may not exceed ten times the limits set forth in 
Table 11, as follows:

   Table 11.--Non-Fixed External Radioactive Contamination-Wipe Limits  
------------------------------------------------------------------------
                                            Maximum permissible limits  
               Contaminant               -------------------------------
                                            Bq/cm2    uCi/cm2   dpm/cm2 
------------------------------------------------------------------------
Beta and gamma emitters and low toxicity                                
 alpha emitters.........................       0.4       10-5       22  
All other alpha emitting radionuclides..       0.04      10-6        2.2
------------------------------------------------------------------------

    (b) Except as provided in paragraph (d) of this section, in the case 
of packages transported as exclusive use shipments by rail or public 
highway only, the removable (non-fixed) radioactive contamination on any 
package at any time during transport may not exceed ten times the levels 
prescribed in paragraph (a) of this section. The levels at the beginning 
of transport may not exceed the levels prescribed in paragraph (a) of 
this section.
    (c) Except as provided in paragraph (d) of this section, each 
transport vehicle used for transporting Class 7 (radioactive) materials 
as an exclusive use shipment that utilizes the provisions of paragraph 
(b) of this section must be surveyed with appropriate radiation 
detection instruments after each use. A vehicle may not be returned to 
service until the radiation dose rate at each accessible surface is 
0.005 mSv per hour (0.5 mrem per hour) or less, and there is no 
significant removable (non-fixed) radioactive surface contamination as 
specified in paragraph (a) of this section.
    (d) Paragraphs (b) and (c) of this section do not apply to any 
closed transport vehicle used solely for the transportation by highway 
or rail of Class 7 (radioactive) material packages with contamination 
levels that do not exceed 10 times the levels prescribed in paragraph 
(a) of this section if--
    (1) A survey of the interior surfaces of the empty vehicle shows 
that the radiation dose rate at any point does not exceed 0.1 mSv per 
hour (10 mrem per hour) at the surface or 0.02 mSv per hour (2 mrem per 
hour) at 1 meter (3.3 feet) from the surface;
    (2) Each vehicle is stenciled with the words ``For Radioactive 
Materials Use Only'' in letters at least 76 millimeters (3 inches) high 
in a conspicuous place on both sides of the exterior of the vehicle; and
    (3) Each vehicle is kept closed except for loading or unloading.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20753, May 8, 1996]



Sec. 173.447  Storage incident to transportation--general requirements.

    The following requirements apply to temporary storage during the 
course of transportation but not to Nuclear Regulatory Commission or 
Agreement State-licensed facilities or U.S. Government-owned or 
contracted facilities.
    (a) The number of packages bearing RADIOACTIVE YELLOW-II or 
RADIOACTIVE YELLOW-III labels stored in any one storage area, such as a 
transit area, terminal building, storeroom, waterfront pier, or assembly 
yard, must be limited so that the sum of the transport indexes in any 
individual group of packages does not exceed 50. Groups of these 
packages must be stored so as to maintain a spacing of at least 6 meters 
(20 feet) from other groups of packages containing Class 7 (radioactive) 
materials.
    (b) Mixing of different kinds of Class 7 (radioactive) materials 
packages that include fissile materials packages is authorized only in 
accordance with Sec. 173.459.



Sec. 173.448  General transportation requirements.

    (a) Each shipment of Class 7 (radioactive) materials must be secured 
to prevent shifting during normal transportation conditions.
    (b) Except as provided in Secs. 174.81, 176.83, and 177.848 of this 
subchapter, or as otherwise required by the competent

[[Page 586]]

authority in the applicable certificate, a package of Class 7 
(radioactive) materials may be carried among packaged general cargo 
without special stowage provisions, if--
    (1) The heat output in watts does not exceed 0.1 times the minimum 
package dimension in centimeters; or
    (2) The average surface heat flux of the package does not exceed 15 
watts per square meter and the immediately surrounding cargo is not in 
sacks or bags or otherwise in a form that would seriously impede air 
circulation for heat removal.
    (c) Packages bearing labels prescribed in Sec. 172.403 of this 
subchapter may not be carried in compartments occupied by passengers, 
except in those compartments exclusively reserved for couriers 
accompanying those packages.
    (d) Mixing of different kinds of packages that include fissile 
packages is authorized only in accordance with Sec. 173.459.
    (e) No person shall offer for transportation or transport aboard a 
passenger-carrying aircraft any single package with a transport index 
greater than 3.0 or an overpack with a transport index greater than 3.0.
    (f) No person shall offer for transportation or transport aboard a 
passenger-carrying aircraft any Class 7 (radioactive) material unless 
that material is intended for use in, or incident to, research, medical 
diagnosis or treatment.
    (g) If an overpack is used to consolidate individual packages of 
Class 7 (radioactive) materials, the packages must comply with the 
packaging, marking, and labeling requirements of this subchapter, and 
the following:
    (1) The overpack must be labeled as prescribed in Sec. 172.403 of 
this subchapter, except as follows:
    (i) The ``contents'' entry on the label may state ``mixed'' unless 
each inside package contains the same radionuclide(s);
    (ii) The ``activity'' entry on the label must be determined by 
adding together the number of Becquerels (curies) of the Class 7 
(radioactive) materials packages contained therein;
    (iii) For a non-rigid overpack, the required label together with 
required package markings must be affixed to the overpack by means of a 
securely attached, durable tag. The transport index must be determined 
by adding together the transport indexes of the Class 7 (radioactive) 
materials packages contained therein; and
    (iv) For a rigid overpack, the transport index must be determined 
by:
    (A) Adding together the transport indexes of the Class 7 
(radioactive) materials packages contained in the overpack; or
    (B) Except for fissile Class 7 (radioactive) materials, direct 
measurements as prescribed in Sec. 173.403 for transport index, taken by 
the person initially offering the packages contained within the overpack 
for shipment.
    (2) The overpack must be marked as prescribed in Subpart D of Part 
172 of this subchapter and Sec. 173.25(a).
    (3) The transport index of the overpack may not exceed 3.0 for 
passenger-carrying aircraft shipments, or 10.0 for cargo-aircraft only 
shipments.



Sec. 173.453  Fissile materials--exceptions.

    The requirements of Secs. 173.457 and 173.459 do not apply to:
    (a) A package containing 15 grams or less of fissile radionuclides. 
If the material is transported in bulk, the quantity limitation applies 
to the conveyance.
    (b) A package containing homogeneous solutions or mixtures where:
    (1) The minimum ratio of the number of hydrogen atoms to the number 
of atoms of fissile radionuclides (H/X) is 5200;
    (2) The maximum concentration of fissile radionuclides is 5 grams 
per liter; and
    (3) The maximum mass of fissile radionuclides in the package is 500 
grams, except that for a mixture in which the total mass of plutonium 
and uranium-233 does not exceed 1% of the mass of uranium-235, the limit 
is 800 grams of uranium-235. If the material is transported in bulk, the 
quantity limitations apply to the conveyance.
    (c) A package containing uranium enriched in uranium-235 to a 
maximum of 1% by mass, and mixed with a total plutonium and uranium-233 
content of up to 1% of the mass of uranium-235, if the fissile 
radionuclides are distributed

[[Page 587]]

homogeneously throughout the package contents, and do not form a lattice 
arrangement within the package.
    (d) A package containing not more than 5 grams of fissile 
radionuclides in any 10 liter volume, provided that the material is 
contained in packages that will maintain the limitation on fissile 
radionuclide distribution during normal conditions of transport.
    (e) A package containing one kilogram or less of plutonium of which 
20% or less by mass may consist of plutonium-239, plutonium-241, or any 
combination of those radionuclides.
    (f) A package containing liquid solutions of uranyl nitrate enriched 
in uranium-235 to a maximum of 2% by mass, with total plutonium and 
uranium-233 content not exceeding 0.1% of the mass of uranium-235 with a 
nitrogen-to-uranium atomic ratio (N/U) of 2.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
248, 61 FR 18933, Apr. 29, 1996]



Sec. 173.457  Transportation of fissile material, controlled shipments--specific requirements.

    Shipments of fissile material packages that have been assigned a 
transport index of greater than 10 for criticality control purposes in 
accordance with 10 CFR 71.59 must meet the requirements of this section 
and Sec. 173.441(a) or (b).
    (a) For fissile material, controlled shipments, the offeror or 
carrier, as appropriate, must incorporate transportation controls which:
    (1) Provide nuclear criticality safety;
    (2) Protect against loading, storing, or transporting that shipment 
with any other fissile material; and
    (3) Include in the shipping papers the description required by 
Sec. 172.203(d) of this subchapter.
    (b) Fissile material, controlled shipments must be transported:
    (1) In an exclusive use conveyance;
    (2) Except for shipments by aircraft, in a conveyance with an escort 
having the capability, equipment, authority, and instructions to provide 
administrative controls necessary to assure compliance with this 
section;
    (3) In a conveyance containing no other packages of any Class 7 
(radioactive) material required to bear one of the labels prescribed in 
Sec. 172.403 of this subchapter. Specific arrangements must be made 
between the offeror and the carrier, with instructions to that effect 
issued with the shipping papers; or
    (4) Under any other procedure approved by the Associate 
Administrator for Hazardous Materials Safety in accordance with Part 107 
of this subchapter.



Sec. 173.459  Mixing of fissile material packages.

    (a) Mixing of fissile material packages with other types of Class 7 
(radioactive) materials is authorized only if the transport index of any 
single package does not exceed 10 and the total transport index in any 
conveyance or storage location does not exceed 50.
    (b) Fissile packages may be shipped with an external radiation level 
greater than 0.1 mSv/hr (10 mrem per hour) at 1 meter (3.3 feet), and 
combined with other packages of the same or different designs in a 
fissile material, controlled shipment, under the conditions prescribed 
in Sec. 173.457, if:
    (1) Each package in the shipment has been assigned a transport index 
for criticality control purposes in accordance with the 10 CFR 71.59;
    (2) The nuclear criticality control transport index does not exceed 
10 for any single package;
    (3) The total nuclear criticality control transport index does not 
exceed 100 for all packages in the shipment; and
    (4) Except as provided in Sec. 176.704(e) of this subchapter, the 
shipment is not transported by vessel.
    (c) A fissile material, controlled shipment of packages may be 
combined with other packages of the same or different design when each 
package has been assigned a nuclear criticality control transport index 
in accordance with 10 CFR 71.59, and may be combined with other fissile 
packages into a fissile material, controlled shipment under the 
conditions prescribed in Sec. 173.457, if:
    (1) The nuclear criticality control transport index which has been 
assigned in the package approval does not exceed 50 for any single 
package;

[[Page 588]]

    (2) The total nuclear criticality control transport index for all 
packages in the shipment does not exceed 100; and
    (3) Except as provided in Sec. 176.704(e) of this subchapter, the 
shipment is not transported by vessel.



Sec. 173.461  Demonstration of compliance with tests.

    (a) Compliance with the test requirements in Secs. 173.463 through 
173.469 must be shown by any of the methods prescribed in this 
paragraph, or by a combination of these methods appropriate for the 
particular feature being evaluated:
    (1) Performance of tests with prototypes or samples of the specimens 
representing LSA-III, special form Class 7 (radioactive) material, or 
packaging, in which case the contents of the packaging for the test must 
simulate as closely as practicable the expected range of physical 
properties of the radioactive contents or packaging to be tested, must 
be prepared as normally presented for transport. The use of non-
radioactive substitute contents is encouraged provided that the results 
of the testing take into account the radioactive characteristics of the 
contents for which the package is being tested;
    (2) Reference to a previous, satisfactory demonstration of 
compliance of a sufficiently similar nature;
    (3) Performance of tests with models of appropriate scale 
incorporating those features that are significant with respect to the 
item under investigation, when engineering experience has shown results 
of those tests to be suitable for design purposes. When a scale model is 
used, the need for adjusting certain test parameters, such as the 
penetrator diameter or the compressive load, must be taken into account; 
or
    (4) Calculations or reasoned evaluation, using reliable and 
conservative procedures and parameters.
    (b) With respect to the initial conditions for the tests under 
Secs. 173.463 through 173.469, except for the water immersion tests, 
compliance must be based upon the assumption that the package is in 
equilibrium at an ambient temperature of 38 deg.C (100 deg.F).



Sec. 173.462  Preparation of specimens for testing.

    (a) Each specimen (i.e., sample, prototype or scale model) must be 
examined before testing to identify and record faults or damage, 
including:
    (1) Divergence from the specifications or drawings;
    (2) Defects in construction;
    (3) Corrosion or other deterioration; and
    (4) Distortion of features.
    (b) Any deviation found under paragraph (a) of this section from the 
specified design must be corrected or appropriately taken into account 
in the subsequent evaluation.
    (c) The containment system of the packaging must be clearly 
specified.
    (d) The external features of the specimen must be clearly identified 
so that reference may be made to any part of it.



Sec. 173.465  Type A packaging tests.

    (a) The packaging, with contents, must be capable of withstanding 
the water spray, free drop, stacking and penetration tests prescribed in 
this section. One prototype may be used for all tests if the 
requirements of paragraph (b) of this section are met.
    (b) Water spray test. The water spray test must precede each test or 
test sequence prescribed in this section. The water spray test must 
simulate exposure to rainfall of approximately 5 centimeters (2 inches) 
per hour for at least one hour. The time interval between the end of the 
water spray test and the beginning of the next test must be such that 
the water has soaked in to the maximum extent without appreciable drying 
of the exterior of the specimen. In the absence of evidence to the 
contrary, this interval may be assumed to be two hours if the water 
spray is applied from four different directions simultaneously. However, 
no time interval may elapse if the water spray is applied from each of 
the four directions consecutively.
    (c) Free drop test. The specimen must drop onto the target so as to 
suffer maximum damage to the safety features being tested, and:
    (1) The height of the drop measured from the lowest point of the 
specimen to the upper surface of the target may

[[Page 589]]

not be less than the distance specified in Table 12, for the applicable 
package mass. The target must be as specified in Sec. 173.465(c)(5). 
Table 12 is as follows:

 Table 12.--Free Drop Distance for Testing Packages to Normal Conditions
                              of Transport                              
------------------------------------------------------------------------
                   Packaging mass                     Free drop distance
------------------------------------------------------------------------
                 Kilograms (pounds)                    Meters    (Feet) 
------------------------------------------------------------------------
 Mass 5000 (11,000).................................       1.2       (4)
5,000 (11,000) Mass to 10,000 (22,000)..............       0.9       (3)
10,000 (22,000) Mass to 15,000 (33,000).............       0.6       (2)
> 15,000 (33,000) Mass..............................       0.3       (1)
------------------------------------------------------------------------

    (2) For packages containing fissile material, the free drop test 
specified in paragraph (c)(1) of this section must be preceded by a free 
drop from a height of 0.3 meter (1 foot) on each corner, or in the case 
of cylindrical packages, onto each of the quarters of each rim.
    (3) For fiberboard or wood rectangular packages with a mass of 50 
kilograms (110 pounds) or less, a separate specimen must be subjected to 
a free drop onto each corner from a height of 0.3 meter (1 foot).
    (4) For cylindrical fiberboard packages with a mass of 100 kilograms 
(220 pounds) or less, a separate specimen must be subjected to a free 
drop onto each of the quarters of each rim from a height of 0.3 meter (1 
foot).
    (5) The target for the free drop test must be a flat, horizontal 
surface of such mass and rigidity that any increase in its resistance to 
displacement or deformation upon impact by the specimen would not 
significantly increase the damage to the specimen.
    (d) Stacking test. (1) The specimen must be subjected for a period 
of at least 24 hours to a compressive load equivalent to the greater of 
the following:
    (i) Five times the mass of the actual package; or
    (ii) The equivalent of 13 kilopascals (1.9 pounds per square inch) 
multiplied by the vertically projected area of the package.
    (2) The compressive load must be applied uniformly to two opposite 
sides of the specimen, one of which must be the base on which the 
package would normally rest.
    (e) Penetration test. For the penetration test, the specimen must be 
placed on a rigid, flat, horizontal surface that will not move 
significantly while the test is being performed.
    (1) A bar of 3.2 centimeters (1.25 inches) in diameter with a 
hemispherical end and a mass of 6 kilograms (13.2 pounds) must be 
dropped and directed to fall with its longitudinal axis vertical, onto 
the center of the weakest part of the specimen, so that, if it 
penetrates far enough, it will hit the containment system. The bar may 
not be significantly deformed by the test; and
    (2) The height of the drop of the bar measured from its lower end to 
the intended point of impact on the upper surface of the specimen must 
be 1 meter (3.3 feet) or greater.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended by Amdt. 173-
244, 61 FR 20753, May 8, 1996]



Sec. 173.466  Additional tests for Type A packagings designed for liquids and gases.

    (a) In addition to the tests prescribed in Sec. 173.465, Type A 
packagings designed for liquids and gases must be capable of 
withstanding the following tests:
    (1) Free drop test. The packaging specimen must drop onto the target 
so as to suffer the maximum damage to its containment. The height of the 
drop measured from the lowest part of the packaging specimen to the 
upper surface of the target must be 9 meters (30 feet) or greater. The 
target must be as specified in Sec. 173.465(c)(5).
    (2) Penetration test. The specimen must be subjected to the test 
specified in Sec. 173.465(e) except that the height of the drop must be 
1.7 meters (5.5 feet).



Sec. 173.467  Tests for demonstrating the ability of Type B and fissile materials packagings to withstand accident conditions in transportation.

    Each Type B packaging or packaging for fissile material must meet 
the test requirements prescribed in 10 CFR Part 71 for ability to 
withstand accident conditions in transportation.



Sec. 173.468  Test for LSA-III material.

    (a) LSA-III Class 7 (radioactive) material must meet the test 
requirement of paragraph (b) of this section. Any

[[Page 590]]

differences between the material to be transported and the test material 
must be taken into account in determining whether the test requirements 
have been met.
    (b) Test method. (1) The specimen representing no less than the 
entire contents of the package must be immersed for 7 days in water at 
ambient temperature.
    (2) The volume of water to be used in the test must be sufficient to 
ensure that at the end of the test period the free volume of the 
unabsorbed and unreacted water remaining will be at least 10% of the 
volume of the specimen itself.
    (3) The water must have an initial pH of 6-8 and a maximum 
conductivity of 10 micromho/cm at 20 deg.C (68 deg.F).
    (4) The total activity of the free volume of water must be measured 
following the 7 day immersion test and must not exceed 0.1 
A2.



Sec. 173.469  Tests for special form Class 7 (radioactive) materials.

    (a) Special form Class 7 (radioactive) materials must meet the test 
requirements of paragraph (b) of this section. Each solid Class 7 
(radioactive) material or capsule specimen to be tested must be 
manufactured or fabricated so that it is representative of the actual 
solid material or capsule that will be transported with the proposed 
radioactive content duplicated as closely as practicable. Any 
differences between the material to be transported and the test 
material, such as the use of non-radioactive contents, must be taken 
into account in determining whether the test requirements have been met. 
The following additional conditions apply:
    (1) A different specimen may be used for each of the tests;
    (2) The specimen may not break or shatter when subjected to the 
impact, percussion, or bending tests;
    (3) The specimen may not melt or disperse when subjected to the heat 
test; and
    (4) After each test, leaktightness or indispersibility of the 
specimen must be determined by--
    (i) A method no less sensitive than the leaching assessment 
prescribed in paragraph (c) of this section. For a capsule resistant to 
corrosion by water, and which has an internal void volume greater than 
0.1 milliliter, an alternative to the leaching assessment is a 
demonstration of leaktightness of 10-4 torr-1/s (1.3  x  
10-24 atm-cm3/s) based on air at 25 deg.C 
(77 deg.F) and one atmosphere differential pressure for solid 
radioactive content, or 10-6 torr-1/s (1.3  x  
10-6 atm-cm3/s) for liquid or gaseous radioactive 
content; or
    (ii) A specimen that comprises or simulates Class 7 (radioactive) 
material contained in a sealed capsule need not be subjected to the 
leaktightness procedure specified in this section provided it is 
alternatively subjected to any of the tests prescribed in ISO/TR4826-
1979(E), ``Sealed Radioactive Sources Leak Test Methods.''
    (b) Test methods.--(1) Impact Test. The specimen must fall onto the 
target from a height of 9 meters (30 feet) or greater. The target must 
be as specified in Sec. 173.465(c)(5).
    (2) Percussion Test. (i) The specimen must be placed on a sheet of 
lead that is supported by a smooth solid surface, and struck by the flat 
face of a steel billet so as to produce an impact equivalent to that 
resulting from a free drop of 1.4 kilograms (3 pounds) through 1 meter 
(3.3 feet).
    (ii) The flat face of the billet must be 2.5 centimeters (1 inch) in 
diameter with the edges rounded off to a radius of 3 millimeters 
0.3 millimeters (0.12 inch 0.012 inch).
    (iii) The lead must be of hardness number 3.5 to 4.5 on the Vickers 
scale and thickness 2.5 centimeters (1 inch) or greater, and must cover 
an area greater than that covered by the specimen.
    (iv) A fresh surface of lead must be used for each impact.
    (v) The billet must strike the specimen so as to cause maximum 
damage.
    (3) Bending test. (i) This test applies only to long, slender 
sources with a length of 10 centimeters (4 inches) or greater and a 
length to width ratio of 10 or greater.
    (ii) The specimen must be rigidly clamped in a horizontal position 
so that one half of its length protrudes from the face of the clamp.
    (iii) The orientation of the specimen must be such that the specimen 
will

[[Page 591]]

suffer maximum damage when its free end is struck by the flat face of a 
steel billet.
    (iv) The billet must strike the specimen so as to produce an impact 
equivalent to that resulting from a free vertical drop of 1.4 kilograms 
(3 pounds) through 1 meter (3.3 feet).
    (v) The flat face of the billet must be 2.5 centimeters (1 inch) in 
diameter with the edges rounded off to a radius of 3 millimeters 
0.3 millimeters (.12 inch 0.012 inch).
    (4) Heat test. The specimen must be heated in air to a temperature 
of not less than 800 deg.C (1475 deg.F), held at that temperature for a 
period of 10 minutes, and then allowed to cool.
    (c) Leaching assessment methods. (1) For indispersible solid 
material--
    (i) The specimen must be immersed for seven days in water at ambient 
temperature. The water must have a pH range of 6 to 8 and a maximum 
conductivity of 10 micromho per centimeter at 20 deg.C (68 deg.F).
    (ii) The water with specimen must then be heated to a temperature of 
50 deg.C 5 deg. (122 deg.F 9 deg.) and 
maintained at this temperature for four hours.
    (iii) The activity of the water must then be determined.
    (iv) The specimen must then be stored for at least seven days in 
still air of relative humidity not less than 90 percent at 30 deg.C 
(86 deg.F).
    (v) The specimen must then be immersed in water under the same 
conditions as in paragraph (c)(1)(i) of this section, and the water with 
specimen must be heated to 50 deg.C 5 (122 deg.F 
9 deg.) and maintained at that temperature for four hours.
    (vi) The activity of the water must then be determined. The 
activities determined in paragraph (c)(1)(iii) of this section and this 
paragraph, (c)(1)(vi), may not exceed 2 kilobecquerels (0.05 
microcurie).
    (2) For encapsulated material--
    (i) The specimen must be immersed in water at ambient temperature. 
The water must have a pH of 6-8 and a maximum conductivity of 10 
micromho per centimeter.
    (ii) The water and specimen must be heated to a temperature of 
50 deg.C 5 deg. (122 deg.F 9 deg.) and 
maintained at this temperature for four hours.
    (iii) The activity of the water must then be determined.
    (iv) The specimen must then be stored for at least seven days in 
still air at a temperature of 30 deg.C (86 deg.F) or greater.
    (v) The process in paragraphs (c)(2)(i), (c)(2)(ii), and (c)(2)(iii) 
of this section must be repeated.
    (vi) The activity determined in paragraph (c)(2)(iii) of this 
section may not exceed 2 kilobecquerels (0.05 microcurie).
    (d) A specimen that comprises or simulates Class 7 (radioactive) 
material contained in a sealed capsule need not be subjected to--
    (1) The impact test and the percussion test of this section provided 
that the specimen is alternatively subjected to the Class 4 impact test 
prescribed in ISO 2919-1980(e), ``Sealed Radioactive Sources 
Classification''; and
    (2) The heat test of this section, provided the specimen is 
alternatively subjected to the Class 6 temperature test specified in the 
International Organization for Standardization document ISO 2919-
1980(e), ``Sealed Radioactive Sources Classification.''



Sec. 173.471  Requirements for U.S. Nuclear Regulatory Commission approved packages.

    In addition to the applicable requirements of the U.S. Nuclear 
Regulatory Commission (USNRC) and other requirements of this subchapter, 
any offeror of a Type B, Type B(U), Type B(M), or fissile material 
package that has been approved by the USNRC in accordance with 10 CFR 
part 71 must also comply with the following requirements:
    (a) The offeror shall be registered with the USNRC as a party to the 
packaging approval, and make the shipment in compliance with the terms 
of the packaging approval;
    (b) The outside of each package must be durably and legibly marked 
with the package identification marking indicated in the USNRC packaging 
approval;
    (c) Each shipping paper related to the shipment of the package must 
bear the package identification marking indicated in the USNRC packaging 
approval;

[[Page 592]]

    (d) Before export shipment of the package, the offeror shall obtain 
a U.S. Competent Authority Certificate for that package design or if one 
has already been issued, the offeror shall register, in writing 
(including a description of the quality assurance program required by 10 
CFR part 71) with the U.S. Competent Authority as a user of the 
certificate. (Note: The person who originally applies for a U.S. 
Competent Authority Certificate will be registered automatically.) Upon 
registration, the offeror will be furnished with a copy of the 
certificate. The offeror shall then submit a copy of the U.S. Competent 
Authority Certificate applying to that package design to the national 
competent authority of each country into or through which the package 
will be transported, unless the offeror has documentary evidence that a 
copy has already been furnished; and
    (e) Each request for a U.S. Competent Authority Certificate as 
required by the IAEA regulations must be submitted in writing to the 
Associate Administrator for Hazardous Materials Safety. The request must 
be in triplicate and include copies of the applicable USNRC packaging 
approval, USNRC Quality Assurance Program approval number, and a 
reproducible 22 cm x 30 cm (8.5'' x 11'') drawing showing the make-up of 
the package. Each request is considered in the order in which it is 
received. To allow sufficient time for consideration, requests must be 
received at least 90 days before the requested effective date.



Sec. 173.472  Requirements for exporting DOT Specification Type B and fissile packages.

    (a) Any offeror who exports a DOT Specification Type B or fissile 
material package authorized by Sec. 173.416 or Sec. 173.417 shall comply 
with paragraphs (b) through (f) of this section.
    (b) The shipment must be made in accordance with the conditions of 
the U.S. Certificate of Competent Authority.
    (c) The outside of each package must be durably and legibly marked 
with the package identification marking indicated in the U.S. Competent 
Authority Certificate.
    (d) Each shipping paper related to the shipment of the package must 
bear the package identification marking indicated in the U.S. Competent 
Authority Certificate.
    (e) Before export of the package, the offeror shall obtain a U.S. 
Competent Authority Certificate for that package design, or if one has 
already been issued, the offeror shall register in writing (including a 
description of the quality assurance program required by 10 CFR Part 71, 
subpart H, or 49 CFR 173.474 and 173.475) with the U.S. Competent 
Authority as a user of the certificate. Upon registration, the offeror 
will be furnished with a copy of the certificate. The offeror shall then 
submit a copy of the U.S. Competent Authority Certificate applying to 
that package design to the national competent authority of each country 
into or through which the package will be transported, unless the 
offeror has documentary evidence that a copy has already been furnished.
    (f) Each request for a U.S. Competent Authority Certificate as 
required by IAEA regulations must be submitted in writing to the 
Associate Administrator for Hazardous Materials Safety. The request must 
be submitted in triplicate and must include a description of the quality 
assurance program required by 10 CFR Part 71, subpart H, or 49 CFR 
173.474 and 173.475, and a reproducible 22 cm x 30 cm (8.5'' x 11'') 
drawing showing the make-up of the package. A copy of the USNRC quality 
assurance program approval will satisfy the requirement for describing 
the quality assurance program. Each request is considered in the order 
in which it is received. To allow sufficient time for consideration, 
requests must be received at least 90 days before the requested 
effective date.



Sec. 173.473  Requirements for foreign-made packages.

    In addition to other applicable requirements of this subchapter, 
each offeror of a foreign-made Type B, Type B(U), Type B(M), or fissile 
material package for which a Competent Authority Certificate is required 
by IAEA's ``Regulations for the Safe Transport of Radioactive Materials,

[[Page 593]]

Safety Series No. 6,'' shall also comply with the following 
requirements:
    (a) Prior to the shipment of such a package of Class 7 (radioactive) 
materials into or from the U.S., the offeror shall--
    (1) Have the foreign competent authority certificate revalidated by 
the U.S. Competent Authority, unless this has been done previously. Each 
request for revalidation must be submitted in writing to the Associate 
Administrator for Hazardous Materials Safety. The request must be in 
triplicate, contain all the information required by Section VII of the 
IAEA regulations in Safety Series No. 6, and include a copy in English 
of the foreign competent authority certificate. Each request is 
considered in the order in which it is received. To allow sufficient 
time for consideration, requests must be received at least 90 days 
before the requested effective date;
    (2) Register in writing with the U.S. Competent Authority as a user 
of the package covered by the foreign competent authority certificate 
and its U.S. revalidation. If the offeror is requesting the 
revalidation, registration is automatic; and
    (3) Supply to the carrier, upon request, the applicable competent 
authority certificates. However, the competent authority certificates 
are not required to accompany the packages to which they apply.
    (b) The outside of each package must be durably and legibly marked 
with the competent authority identification marking indicated on the 
Competent Authority Certificate and revalidation.
    (c) Each shipping paper for a shipment of Class 7 (radioactive) 
materials must bear a notation of the package identification marking 
indicated on the competent authority certificate or revalidation.
    (d) All requirements of the foreign competent authority certificate 
and the U.S. Competent Authority revalidation must be fulfilled.



Sec. 173.474  Quality control for construction of packaging.

    Prior to the first use of any packaging for the shipment of Class 7 
(radioactive) material, the offeror shall determine that--
    (a) The packaging meets the quality of design and construction 
requirements as specified in this subchapter; and
    (b) The effectiveness of the shielding, containment and, when 
required, the heat transfer characteristics of the package, are within 
the limits specified for the package design.



Sec. 173.475  Quality control requirements prior to each shipment of Class 7 (radioactive) materials.

    Before each shipment of any Class 7 (radioactive) materials package, 
the offeror must ensure, by examination or appropriate tests, that--
    (a) The packaging is proper for the contents to be shipped;
    (b) The packaging is in unimpaired physical condition, except for 
superficial marks;
    (c) Each closure device of the packaging, including any required 
gasket, is properly installed, secured, and free of defects;
    (d) For fissile material, each moderator and neutron absorber, if 
required, is present and in proper condition;
    (e) Each special instruction for filling, closing, and preparation 
of the packaging for shipment has been followed;
    (f) Each closure, valve, or other opening of the containment system 
through which the radioactive content might escape is properly closed 
and sealed;
    (g) Each packaging containing liquid in excess of an A2 
quantity and intended for air shipment has been tested to show that it 
will not leak under an ambient atmospheric pressure of not more than 25 
kPa, absolute (3.6 psia). The test must be conducted on the entire 
containment system, or on any receptacle or vessel within the 
containment system, to determine compliance with this requirement;
    (h) The internal pressure of the containment system will not exceed 
the design pressure during transportation; and
    (i) External radiation and contamination levels are within the 
allowable limits specified in this subchapter.

[[Page 594]]



Sec. 173.476  Approval of special form Class 7 (radioactive) materials.

    (a) Each offeror of special form Class 7 (radioactive) materials 
must maintain on file for at least one year after the latest shipment, 
and provide to the Associate Administrator for Hazardous Materials 
Safety on request, a complete safety analysis, including documentation 
of any tests, demonstrating that the special form material meets the 
requirements of Sec. 173.469. An IAEA Certificate of Competent Authority 
issued for the special form material may be used to satisfy this 
requirement.
    (b) Prior to the first export shipment of a special form Class 7 
(radioactive) material from the United States, each offeror shall obtain 
a U.S. Competent Authority Certificate for the specific material. For 
special form material manufactured outside the United States, an IAEA 
Certificate of Competent Authority from the country of origin may be 
used to meet this requirement.
    (c) Each request for a U.S. Competent Authority Certificate as 
required by the IAEA regulations must be submitted in writing, in 
triplicate, to the Associate Administrator for Hazardous Materials 
Safety. Each request is considered in the order in which it is received. 
To allow sufficient time for consideration, requests must be received at 
least 90 days before the requested effective date. Each petition for a 
U.S. Competent Authority Certificate must include the following 
information:
    (1) A detailed description of the material, or if a capsule, a 
detailed description of the contents. Particular reference must be made 
to both physical and chemical states;
    (2) A detailed statement of the capsule design and dimensions, 
including complete engineering drawings [22cm  x  30cm (8\1/2\ inches 
x  11 inches)] and schedules of material, and methods of construction;
    (3) A statement of the tests that have been made and their results; 
or evidence based on calculative methods to show that the material is 
able to pass the tests; or other evidence that the special form Class 7 
(radioactive) material complies with Sec. 173.469; and
    (4) For the original request for a Competent Authority Certificate, 
evidence of a quality assurance program.
    (d) Paragraphs (a) and (b) of this section do not apply in those 
cases where A1 equals A2 and the material is not 
required to be described on the shipping papers as ``Radioactive 
Material, Special Form, n.o.s.''



                         Subparts J-O [Reserved]

                   Appendix A To Part 173--[Reserved]

Appendix B to Part 173--Procedure for Testing Chemical Compatibility and 
         Rate of Permeation in Plastic Packaging and Receptacles

    1. The purpose of this procedure is to determine the chemical 
compatibility and permeability of liquid hazardous materials packaged in 
plastic packaging and receptacles. Alternatives for this procedure are 
permitted as specified in Sec. 173.24(e)(3)(iii) of this subchapter.
    2. Compatibility and rate of permeation are determined by subjecting 
full size plastic containers (or smaller containers as permitted in 
paragraph 4 of this Appendix) and hazardous material lading to one of 
the following combinations of time and temperature:
    a. Test Method 1: 180 days at a temperature no lower than 18 deg. C. 
(64 deg. F.)
    b. Test Method 2: 28 days at a temperature no lower than 50 deg. C. 
(122 deg. F.)
    c. Test Method 3: 14 days at a temperature no lower than 60 deg. C. 
(140 deg. F.)
    3. Regardless of which test method is used, at least three sample 
containers shall be tested for each combination of hazardous material 
and size and design of container. Fill containers to rated capacity with 
the specific hazardous material (at the concentration to be transported) 
and close as for shipment. For the first and last 24 hours of storage 
under the selected test method, place the containers with closures 
downward, except that containers fitted with a vent are so placed on 
each occasion for five minutes only.
    4. For testing under Test Method 2 or 3 in those instances where it 
is not practicable to use full size containers, smaller containers may 
be used. The small container shall be manufactured by the same process 
as the larger container (for example, using the same method of molding 
and processing temperatures) and be made of identical resins, pigments 
and additives.
    5. Determine filled container weight or net weight of contents both 
before and after

[[Page 595]]

storage under the selected test method. Rate of permeation is determined 
from loss of hazardous materials contents, during the conduct of the 
test, expressed as a percentage of the original weight.
    6. After storage under the selected test method, the container shall 
be drained, rinsed, filled to rated capacity with water and, with filled 
container at ambient temperature, dropped from a height determined in 
accordance with Sec. 178.603(e) of this subchapter onto a rigid non-
resilient, flat and horizontal surface.
    7. Each of the following constitute test failure:
    a. Visible evidence of permanent deformation due to vapor pressure 
build-up or collapse of walls, deterioration, swelling, crazing, 
cracking, excessive corrosion, oxidization, embrittlement, leakage, 
rupture or other defects likely to cause premature failure or a 
hazardous condition.
    b. For materials meeting the definition of a poison according to 
this subchapter, a rate of permeation in excess of 0.5% determined over 
the test period. For all other hazardous materials, a rate of permeation 
in excess of 2.0% determined over the test period.
[Amdt. 173-176, 49 FR 24691, June 14, 1984, as amended by Amdt. 173-224, 
55 FR 52670 Dec. 21, 1990; 56 FR 66279, Dec. 20, 1991; Amdt. 173-234, 58 
FR 51533, Oct. 1, 1993]

   Appendix C to Part 173--Procedure for Base-level Vibration Testing

    Base-level vibration testing shall be conducted as follows:
    1. Three sample packagings, selected at random, must be filled and 
closed as for shipment. A non-hazardous material may be used in place of 
the hazardous material if it has essentially the same physical 
characteristics.
    2. The three packages must be placed on a vibrating platform that 
has a vertical double-amplitude (peak-to-peak displacement) of one inch. 
The packages should be constrained horizontally to prevent them from 
falling off the platform, but must be left free to move vertically, 
bounce and rotate.
    3. The test must be performed continuously for one hour at a 
frequency that causes each package to be raised from the vibrating 
platform to such a degree that a piece of material of approximately 1.6 
mm (0.063 inch) thickness (such as steel strapping or paperboard) can be 
passed between the bottom of any package and the platform.
    4. Immediately following the period of vibration, each package shall 
be removed from the platform, turned on its side and observed for any 
evidence of leakage.
    5. Rupture or leakage from any of the packages constitutes failure 
of the test.
[Amdt. 173-224, 55 FR 52671, Dec. 21, 1990]

Appendix D to Part 173--Test Methods for Dynamite (Explosive, Blasting, 
                                 Type A)

                    1. Test method D-1--Leakage Test

    A wooden stick, 114 mm (4.5 inches) long and 4.8 mm (0.2 inch) inch 
in diameter, with a sharpened end is used to punch 5 holes in one end of 
the wrapper of a dynamite cartridge. A cork stopper is placed on the 
bottom of a glass volumetric cylinder. The dynamite cartridge is placed, 
perforated end down, resting on the cork stopper in the cylinder. The 
entire assembly is placed in an oven at 38  deg.C (100  deg.F) for 48 
hours and then examined visually for evidence of leakage.

             2. Test method D-2--Centrifugal Exudation Test

    The test apparatus consists of a glass tube, 135 mm (5.3 inches) 
long and one inch in diameter, with both ends open, and is assembled in 
the following manner:
    (a) Close the bottom with a plastic plug of diameter equal to the 
inner diameter of the glass tube;
    (b) Place a small amount of absorbent cotton on top of the plug;
    (c) Place a plastic disk that matches the inner diameter to the 
glass tube and has seven small perforations on top of the cotton; and
    (d) Place 10 g (0.35 ounce) of the dynamite sample on top of the 
disk.

The assembled glass tube is then placed in a hand-operated centrifuge 
and spun for one minute at 600 rpm (revolutions per minute). The 
dynamite sample is then removed from the glass tube and weighed to 
determine the percent of weight loss.

             3. Test method D-3--Compression Exudation Test

    The entire apparatus for this test is shown in Figure 1 of this 
appendix. The test is conducted using the following procedures:
    (a) A glass tube, 135 mm (5.3 inches) long and one inch in diameter, 
is held on a wooden base;
    (b) A small amount of absorbent cotton is placed into the bottom of 
the glass tube;
    (c) Ten g (0.35 ounce) of dynamite sample are placed on top of the 
cotton in the glass tube;
    (d) A small amount of absorbent cotton is placed on top of the 
dynamite sample;
    (e) A plastic disk that matches the inner diameter of the glass tube 
and has seven small perforations is placed on top of the cotton;
    (f) A plastic plug matching the inner diameter of the glass tube is 
then placed on top of the disk;
    (g) The glass tube assembly is placed under the compression rod, and 
compression is applied by means of the weight on the metal

[[Page 596]]

lever rod. The sample is compressed for one minute; and
    (h) The dynamite sample is then removed from the glass tube and 
weighed to determine the percent of weight loss.
[GRAPHIC] [TIFF OMITTED] TC02MR91.067

                   Appendix E-G to Part 173-[Reserved]

 Appendix H to Part 173--Method of Testing for Sustained Combustibility

                                1. Method

    The method describes a procedure for determining if the material 
when heated under the test conditions and exposed to an external source 
of flame applied in a standard manner sustains combustion.

                       2. Principle of the method

    A metal block with a concave depression (test portion well) is 
heated to a specified temperature. A specified volume of the material 
under test is transferred to the well, and its ability to sustain 
combustion is noted after application and subsequent removal of a 
standard flame under specified conditions.

                              3. Apparatus

    A combustibility tester consisting of a block of aluminum alloy or 
other corrosion-resistant metal of high thermal conductivity is used. 
The block has a concave well and a pocket drilled to take a thermometer. 
A small gas jet assembly on a swivel is attached to the block. The 
handle and gas inlet for the gas jet may be fitted at any convenient 
angle to the gas jet. A suitable apparatus is shown in Figure 5.1 of the 
UN Recommendations, and the essential dimensions are given in Figures 
5.1 and 5.2 of the UN Recommendations. The following equipment is 
needed:
    (a) Gauge, for checking that the height of the center of the gas jet 
above the top of the test portion well is 2.2 mm (see Figure 5.1);
    (b) Thermometer, mercury in glass, for horizontal operation, with a 
sensitivity not less than 1 mm/ deg.C, or other measuring device of 
equivalent sensitivity permitting reading at 0.5 deg.C intervals. When 
in position in the block, the thermometer bulb must be surrounded with 
thermally conducting thermoplastic compound;
    (c) Hotplate, fitted with a temperature-control device. (Other types 
of apparatus with suitable temperature-control facilities may be 
employed to heat the metal block);
    (d) Stopwatch, or other suitable timing device;

[[Page 597]]

    (e) Syringe, capable of delivering 2 ml to an accuracy of 
0.1 ml; and
    (f) Fuel source, butane test fuel.

                               4. Sampling

    The sample must be representative of the material to be tested and 
must be supplied and kept in a tightly closed container prior to test. 
Because of the possibility of loss of volatile constituents, the sample 
must receive only the minimum treatment necessary to ensure its 
homogeneity. After removing each test portion, the sample container must 
be immediately closed tightly to ensure that no volatile components 
escape from the container; if this closure is incomplete, an entirely 
new sample must be taken.

                              5. Procedure

    Carry out the determination in triplicate.
    WARNING--Do not carry out the test in a small confined area (for 
example a glove box) because of the hazard of explosions.
    (a) It is essential that the apparatus be set up in a completely 
draft-free area (see warning) and in the absence of strong light to 
facilitate observation of flash, flame, etc.
    (b) Place the metal block on the hotplate or heat the metal block by 
other suitable means so that its temperature, as indicated by the 
thermometer placed in the metal block, is maintained at the specified 
temperature within a tolerance of 1 deg.C. For the 
appropriate test temperature, see paragraph 5.(h) of this appendix. 
Correct this temperature for the difference in barometric pressure from 
the standard atmospheric pressure (101.3 kPa) by raising the test 
temperature for a higher pressure or lowering the test temperature for a 
lower pressure by 1.0 deg.C for each 4 kPa difference. Ensure that the 
top of the metal block is exactly horizontal. Use the gauge to check 
that the jet is 2.2 mm above the top of the well when in the test 
position.
    (c) Light the butane test fuel with the jet away from the test 
position (i.e. in the ``off'' position, away from the well). Adjust the 
size of the flame so that it is 8 mm to 9 mm high and approximately 5 mm 
wide.
    (d) Using the syringe, take from the sample container at least 2 ml 
of the sample and rapidly transfer a test portion of 2 ml 
0.1 ml to the well of the combustibility tester and 
immediately start the timing device.
    (e) After a heating time of 60 seconds (s), by which time the test 
portion is deemed to have reached its equilibrium temperature, and if 
the test fluid has not ignited, swing the test flame into the test 
position over the edge of the pool of liquid. Maintain it in this 
position for 15 s and then return it to the ``off'' position while 
observing the behavior of the test portion. The test flame must remain 
lighted throughout the test.
    (f) For each test observe and record:
    (i) whether there is ignition and sustained combustion or flashing, 
or neither, of the test portion before the test flame is moved into the 
test position;
    (ii) whether the test portion ignites while the test flame is in the 
test position, and, if so, how long combustion is sustained after the 
test flame is returned to the ``off'' position.
    (g) If sustained combustion interpreted in accordance with paragraph 
6. of this appendix is not found, repeat the complete procedure with new 
test portions, but with a heating time of 30 s.
    (h) If sustained combustion interpreted in accordance with paragraph 
6. of this appendix is not found at a test temperature of 60.5 deg.C 
(141 deg.F), repeat the complete procedure with new test portions, but 
at a test temperature of 75 deg.C (167 deg.F). In the case of a material 
which has a flash point above 60.5 deg. C (141 deg. F) and below 93 deg. 
C (200 deg. F), if sustained combustion interpreted in accordance with 
paragraph 6. of this appendix is not found at a test temperature of 
5 deg. C (9 deg. F) above its flash point, repeat the complete procedure 
with new test portions, but at a test temperature of 20 deg. C (36 deg. 
F) above its flash point.

                    6. Interpretation of observations

    The material must be assessed either as not sustaining combustion or 
as sustaining combustion. Sustained combustion must be reported at 
either of the heating times if one of the following occurs with either 
of the test portions:
    (a) When the test flame is in the ``off'' position, the test portion 
ignites and sustains combustion;
    (b) The test portion ignites while the test flame is in the test 
position for 15 s, and sustains combustion for more than 15 s after the 
test flame has been returned to the ``off'' position.

    Note to Paragraph 6. of this Appendix: Intermittent flashing may not 
be interpreted as sustained combustion. Normally, at the end of 15 s, 
the combustion has either clearly ceased or continues. In cases of 
doubt, the material must be deemed to sustain combustion.

[Amdt. 173-241, 59 FR 67517, Dec. 29, 1994, as amended by Amdt. 173-255, 
61 FR 50627, Sept. 26, 1996]

[[Page 598]]



PART 174--CARRIAGE BY RAIL--Table of Contents




                     Subpart A--General Requirements

Sec.
174.1  Purpose and scope.
174.3  Unacceptable hazardous materials shipments.
174.5  Carrier's materials and supplies.
174.9  Inspection and acceptance.
174.14  Movements to be expedited.
174.16  Removal and disposition of hazardous materials at destination.
174.20  Local or carrier restrictions.

                Subpart B--General Operating Requirements

174.24  Shipping papers.
174.26  Notice to train crews of placarded cars.
174.50  Nonconforming or leaking packages.

          Subpart C--General Handling and Loading Requirements

174.55  General requirements.
174.57  Cleaning cars.
174.59  Marking and placarding of rail cars.
174.61  Transport vehicles and freight containers on flat cars.
174.63  Portable tanks, IM portable tanks, intermediate bulk containers, 
          cargo tanks, and multi-unit tank car tanks.
174.67  Tank car unloading.
174.81  Segregation of hazardous materials.

   Subpart D--Handling of Placarded Rail Cars, Transport Vehicles and 
                           Freight Containers

174.82  General requirements for the handling of placarded rail cars, 
          transport vehicles, freight containers, and bulk packages.
174.83  Switching placarded rail cars, transport vehicles, freight 
          containers, and bulk packagings.
174.84  Position in train of loaded placarded rail cars, transport 
          vehicles, freight containers or bulk packagings when 
          accompanied by guards or technical escorts.
174.85  Position in train of placarded cars, transport vehicles, freight 
          containers, and bulk packagings.
174.86  Maximum allowable operating speed.

                Subpart E--Class I (Explosive) Materials

174.101  Loading Class 1 (explosive) materials.
174.102  Forbidden mixed loading and storage.
174.103  Disposition of damaged or astray shipments.
174.104  Division 1.1 or 1.2 (Class A explosive) materials; car 
          selection, preparation, inspection, and certification.
174.105  Routing shipments, Division 1.1 or 1.2 (Class A explosive) 
          materials.
174.106  ``Order-Notify'' or ``C.O.D.'' shipments, Division 1.1 or 1.2 
          (Class A explosive) materials.
174.110  Car magazine.
174.112  Loading Division 1.3 (Class B explosive) materials and Division 
          1.2 (devices corresponding to Class B explosive) materials 
          (Also see Sec. 174.101).
174.114  Record to be made of change of seals on ``Cars loaded with 
          Division 1.1 or 1.2 (explosive) materials''.
174.115  Loading Division 1.4 (Class C explosive) materials.

     Subpart F--Detailed Requirements for Class 2 (Gases) Materials

174.200  Special handling requirements.
174.201  Class 2 (gases) material cylinders.
174.204  Tank car delivery of gases, including cryogenic liquids.
174.290  Materials extremely poisonous by inhalation shipped by, for, or 
          to the Department of Defense.

    Subpart G--Detailed Requirements for Class 3 (Flammable Liquid) 
                                Materials

174.300  Special handling requirements.
174.304  Class 3 (flammable liquid) materials in tank cars.

                        Subparts H-I  [Reserved]

 Subpart J--Detailed Requirements for Division 6.1 (Poisonous) Materials

174.600  Special handling requirements for materials extremely poisonous 
          by inhalation.
174.615  Cleaning cars.
174.680  Division 6.1 (poisonous) materials with foodstuffs.

  Subpart K--Detailed Requirements for Class 7 (Radioactive) Materials

174.700  Special handling requirements for Class 7 (radioactive) 
          materials.
174.715  Cleanliness of transport vehicles after use.
174.750  Incidents involving leakage.

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.



                     Subpart A--General Requirements



Sec. 174.1  Purpose and scope.

    This part prescribes requirements in addition to those contained in 
parts 171, 172, 173, and 179 of this subchapter,

[[Page 599]]

to be observed with respect to the transportation of hazardous materials 
in or on rail cars.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-74, 58 FR 51533, Oct. 1, 1993]



Sec. 174.3  Unacceptable hazardous materials shipments.

    No person may accept for transportation or transport by rail any 
shipment of hazardous material that is not in conformance with the 
requirements of this subchapter.
[Amdt. 174-83, 61 FR 28677, June 5, 1996]



Sec. 174.5  Carrier's materials and supplies.

    This subchapter applies to the transportation of a carrier's 
materials and supplies moving by rail, except that the shipper's 
certification is not required when these materials and supplies are 
being transported by the carrier who owns them. The requirements of this 
subchapter do not apply to railway torpedoes or fusees when carried in 
engines or rail cars. Railway torpedoes must be in closed metal boxes 
when not in use.
[Amdt. 174-26B, 41 FR 57071, Dec. 30, 1976]



Sec. 174.9  Inspection and acceptance.

    At each location where a hazardous material is accepted for 
transportation or placed in a train, the carrier shall inspect each rail 
car containing the hazardous material, at ground level, for required 
markings, labels, placards, securement of closures and leakage. This 
inspection may be performed in conjunction with inspections required 
under parts 215 and 232 of this title.
[Amdt. 174-83, 61 FR 28677, June 5, 1996]



Sec. 174.14  Movements to be expedited.

    (a) A carrier must forward each shipment of hazardous materials 
promptly and within 48 hours (Saturdays, Sundays, and holidays 
excluded), after acceptance at the originating point or receipt at any 
yard, transfer station, or interchange point, except that where biweekly 
or weekly service only is performed, a shipment of hazardous materials 
must be forwarded on the first available train.
    (b) A tank car loaded with any Division 2.1 (flammable gas), 
Division 2.3 (poisonous gas) or Class 3 (flammable liquid) material, may 
not be received and held at any point, subject to forwarding orders, so 
as to defeat the purpose of this section or of Sec. 174.204 of this 
subchapter.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-68, 
55 FR 52677, Dec. 21, 1990]



Sec. 174.16  Removal and disposition of hazardous materials at destination.

    (a) Delivery at non-agency stations. A shipment of Class 1 
(explosive) materials may not be unloaded at non-agency stations unless 
the consignee is there to receive it or unless properly locked and 
secure storage facilities are provided at that point for its protection. 
If delivery cannot be so made, the shipment must be taken to next or 
nearest agency station for delivery.
    (b) Delivery at agency stations. A carrier shall require the 
consignee of each shipment of hazardous materials to remove the shipment 
from carrier's property within 48 hours (exclusive of Saturdays, 
Sundays, and holidays) after notice of arrival has been sent or given. 
If not so removed, the carrier shall immediately dispose of the 
shipments as follows:
    (1) Division 1.1 or 1.2 (Class A explosive) materials: If safe 
storage is available, by storage at the owner's expense; if safe storage 
is not available, by return to the shipper, sale, or destruction under 
supervision of a competent person; or if safety requires, by destruction 
under supervision of a competent person.
    (2) Hazardous materials, except Division 1.1 or 1.2 (Class A 
explosive) materials, in carload shipments: By storage on the carrier's 
property; by storage on other than the carrier's property, if safe 
storage on the carrier's property is not available; or by sale at 
expiration of 15 calendar days after notice of arrival has been sent or 
given to the consignee, provided the consignor has been notified of the 
non-delivery at the expiration of a 48-hour period and orders for 
disposition have not been received.
    (3) Hazardous materials, except Division 1.1 or 1.2 (Class A 
explosive) materials, in less-than-carload shipments: By return to the 
shipper if notice of non-delivery

[[Page 600]]

was requested and given the consignor as prescribed by the carrier's 
tariff, and orders for return to shipper have been received; by storage 
on the carrier's property; by storage on other than the carrier's 
property, if safe storage on carrier's property is not available; or by 
sale at expiration of 15 calendar days after notice of arrival has been 
sent or given to the consignee, provided the consignor has been notified 
of non-delivery at expiration of a 48-hour period and orders for 
disposition have not been received.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-68, 
55 FR 52677, Dec. 21, 1990]



Sec. 174.20  Local or carrier restrictions.

    (a) When local conditions make the acceptance, transportation, or 
delivery of hazardous materials unusually hazardous, local restrictions 
may be imposed by the carrier.
    (b) Each carrier must report to the Bureau of Explosives for 
publication the full information as to any restrictions which it imposes 
against the acceptance, delivery, or transportation of hazardous 
materials, over any portion of its lines under this section.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976]



                Subpart B--General Operating Requirements



Sec. 174.24  Shipping papers.

    A person may not accept or transport a hazardous material by rail 
unless that person receives a shipping paper that properly conveys the 
information required by part 172 of this subchapter. Only an initial 
carrier within the United States must receive and retain a copy of the 
shipper's certification as required by Sec. 172.204 of this subchapter. 
This section does not apply to a material that is excepted from shipping 
paper requirements as specified in Sec. 172.200 of this subchapter.
[Amdt. 174-83, 61 FR 28677, June 5, 1996, as amended by Amdt. 174-83, 61 
FR 50255, Sept. 25, 1996]



Sec. 174.26  Notice to train crews of placarded cars.

    (a) The train crew must have a document indicating the position in 
the train of each loaded placarded car containing hazardous materials, 
except when the position is changed or the placarded car is placed in 
the train by a member of the train crew. A train consist may be used to 
meet this requirement.
    (b) A member of the train crew of a train transporting a hazardous 
material must have a copy of a document for the hazardous material being 
transported showing the information required by part 172 of this 
subchapter.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-26B, 41 FR 57071, Dec. 30, 1976; 
Amdt. 174-68, 55 FR 52678, Dec. 21, 1990; Amdt. 174-83, 61 FR 28677, 
June 5, 1996]

    Effective Date Note: By Amdt. 174-84, 62 FR 1236, Jan. 8, 1997, 
Sec. 174.26 was revised, effective Oct. 1, 1997. At 62 FR 32398, July 
22, 1997, the effective date was delayed until Oct. 1, 1998. For the 
convenience of the user the revised text is set forth as follows:

Sec. 174.26  Notice to train crews of placarded cars.

    (a) The train crew must have a document that reflects the current 
position in the train of each rail car containing a hazardous material. 
The train crew must update the document to indicate changes in the 
placement of a rail car within the train. For example, the train crew 
may update the document by handwriting on it or by appending or 
attaching another document to it.
    (b) A member of the crew of a train transporting a hazardous 
material must have a copy of a document for the hazardous material being 
transported showing the information required by part 172 of this 
subchapter.
[Amdt. 174-84, 62 FR 1236, Jan. 8, 1997]



Sec. 174.50  Nonconforming or leaking packages.

    Leaking packages other than tank cars may not be forwarded until 
repaired, reconditioned, or overpacked in accordance with Sec. 173.3 of 
this subchapter. Except as otherwise provided in this section, a tank 
car that no longer conforms to this subchapter may not be forwarded 
unless repaired or approved for movement by the Associate Administrator 
for Safety, Federal Railroad Administration. Notification and approval 
must be furnished in writing, or through telephonic or electronic means 
with subsequent written confirmation provided within two weeks.

[[Page 601]]

For the applicable address and telephone number, see part 107, subpart 
B, Appendix A, of this chapter. A leaking tank car containing a 
hazardous material may be moved without repair or approval only so far 
as necessary to reduce or eliminate an immediate threat of harm to human 
health or the environment when it is determined its movement would 
provide greater safety than allowing the car to remain in place. In the 
case of a liquid leak, measures must be taken to prevent the spread of 
the liquid.
[Amdt. 174-83, 61 FR 28677, June 5, 1996]



          Subpart C--General Handling and Loading Requirements



Sec. 174.55  General requirements.

    (a) Each package containing a hazardous material being transported 
by rail in a freight container or transport vehicle must be loaded so 
that it cannot fall or slide and must be safeguarded in such a manner 
that other freight cannot fall onto or slide into it under conditions 
normally incident to transportation. When this protection cannot be 
provided by using other freight, it must be provided by blocking and 
bracing. For examples of blocking and bracing in freight containers and 
transport vehicles, see Bureau of Explosives Pamphlet Nos. 6 and 6C.
    (b) Each package containing a hazardous material bearing package 
orientation markings prescribed in Sec. 172.312 of this subchapter must 
be loaded within a transport vehicle or freight container to remain in 
the correct position indicated by those markings during transportation.
    (c) The doors of a freight container or transport vehicle may not be 
used to secure a load that includes a package containing a hazardous 
material unless the doors meet the design strength requirements of 
Specification M-930 (for freight containers) and M-931 (for trailers) in 
the AAR's Manual of Standards and Recommended Practices and the load is 
also within the limits of the design strength requirements for the 
doors.
[Amdt. 174-83, 61 FR 28677, June 5, 1996]



Sec. 174.57  Cleaning cars.

    All hazardous material which has leaked from a package in any rail 
car or on other railroad property must be carefully removed.



Sec. 174.59  Marking and placarding of rail cars.

    No person may transport a rail car carrying hazardous materials 
unless it is marked and placarded as required by this subchapter. 
Placards and car certificates lost in transit must be replaced at the 
next inspection point, and those not required must be removed at the 
next terminal where the train is classified. For Canadian shipments, 
required placards lost in transit, must be replaced either by those 
required by part 172 of this subchapter or by those authorized under 
Sec. 171.12a.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-48, 
50 FR 41521, Oct. 11, 1985]



Sec. 174.61  Transport vehicles and freight containers on flat cars.

    (a) A transport vehicle, freight container, or package containing a 
hazardous material must be designed and loaded so that it will not 
become damaged to an extent that would affect its integrity under 
conditions normally incident to transportation. Each unit must be 
secured on a flatcar so that it cannot permanently change position 
during transit. Packages of hazardous materials contained therein must 
be loaded and braced as provided by Secs. 174.101, 174.112, 174.115 and 
174.55. Placards must be applied when prescribed by part 172 of this 
subchapter and part 174.
    (b) Except as specified in Sec. 173.21, a truck body, trailer, or 
freight container equipped with heating or refrigerating equipment which 
has fuel or any article classed as a hazardous material may be loaded 
and transported on a flat car as part of a joint rail highway movement. 
The heating or refrigerating equipment is considered to be a part of the 
truck body or trailer and is not subject to any other requirements of 
this subchapter. The truck body,

[[Page 602]]

trailer, or freight container must be secured on the flatcar so that it 
cannot change position during transit.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-38, 45 FR 32698, May 19, 1980; 
Amdt. 174-39, 45 FR 81572, Dec. 11, 1980; Amdt. 174-59, 51 FR 5974, Feb. 
18, 1986; Amdt. 174-68, 57 FR 45464, Oct. 1, 1992; Amdt. 174-79, 59 FR 
64744, Dec. 15, 1994]



Sec. 174.63  Portable tanks, IM portable tanks, intermediate bulk containers, cargo tanks, and multi-unit tank car tanks.

    (a) A carrier may not transport a bulk packaging (e.g., portable 
tank, IM portable tank, intermediate bulk container, cargo tank, or 
multi-unit tank car tank) containing a hazardous material in container-
on-flatcar (COFC) or trailer-on-flatcar (TOFC) service except as 
authorized by this section or unless approved for transportation by the 
Associate Administrator for Safety, FRA.
    (b) A bulk packaging containing a hazardous material (including IM 
101 and IM 102 when appropriate according to dimensions and weight 
distribution) may be transported inside a fully closed transport vehicle 
or fully closed freight container provided it is properly secured with a 
restraint system that will prevent it from changing position, sliding 
into other packages, or contacting the side or end walls (including 
doors) under conditions normally incident to transportation.
    (c) When not transported in conformance with and subject to 
paragraph (b) of this section, a bulk packaging may be transported in 
COFC service or TOFC service subject to the following conditions as 
applicable:
    (1) The bulk packaging contains a material packaged in accordance 
with Sec. 173.240, 173.241, 173.242, or 173.243 of this subchapter;
    (2) The tank and flatcar conform to requirements in AAR 600 of the 
AAR Specifications for Tank Cars, Specification M-1002, entitled 
``Specifications for Acceptability of Tank Containers'';
    (3) For TOFC service, the trailer chassis conforms to requirements 
in paragraphs 3, 4, 5, and 6 of AAR Specification M-943 ``Container 
Chassis For TOFC Service'' of the AAR specification for ``Specially 
Equipped Freight Car and Intermodal Equipment'';
    (4) For COFC service, the container support and securement systems 
conform to requirements in Specification M-952 ``Intermodal Container 
Support and Securement Systems for Freight Cars'', of the AAR 
specification for ``Specially Equipped Freight Car and Intermodal 
Equipment'';
    (5) If transported in a well car--
    (i) The tank is not in a double-stacked configuration (i.e., no 
freight container or portable tank is placed above or below the tank); 
and
    (ii) The tank is transported in the well with its outlet valve 
facing outward towards the end of the well and away from any adjacent 
tank or container; and
    (6) All securement fittings shall be fully engaged and in the locked 
position, provided; however, if the tank is transported in a well car, 
it must be loaded into a well appropriate for the length of the 
container and any void filling device present must be secured in its 
designed appropriate position.
    (d) An approval in effect on February 28, 1991 for the 
transportation of portable tanks or IM portable tanks in TOFC or COFC 
service expires on the date stated in the approval letter or June 15, 
1995, whichever is later.
    (e) A carrier may not transport a cargo tank or multi-unit tank car 
tank containing a hazardous material in TOFC or COFC service unless 
approved for such service by the Associate Administrator for Safety, 
FRA. However, in the event of an accident or incident, no such approval 
is necessary for the transportation of a cargo tank containing a 
hazardous material in TOFC service under the following condition(s):
    (1) There is an emergency need for the cargo tank in order to 
mitigate the consequences of an incident; and
    (2) Movement of the cargo tank is limited to transportation 
necessary for emergency purposes.
[Amdt. 174-79, 59 FR 64744, Dec. 15, 1994]



Sec. 174.67  Tank car unloading.

    (a) In unloading tank cars, the following rules must be observed 
(see subpart F of this part for gases):

[[Page 603]]

    (1) Unloading operations must be performed only by reliable persons 
properly instructed in unloading hazardous materials and made 
responsible for careful compliance with this part.
    (2) Brakes must be set and wheels blocked on all cars being 
unloaded.
    (3) Caution signs must be so placed on the track or cars to give 
necessary warning to persons approaching the cars from the open end of a 
siding and must be left up until after the cars are unloaded and 
disconnected from the discharge connection. The signs must be of metal 
or other comparable material, at least 30 cm (12 inches) high by 38 cm 
(15 inches) wide in size, and bear the words, ``STOP--Tank Car 
Connected'', or ``STOP--Men at Work'', the word ``STOP'' being in 
letters at least 10 cm (3.9 inches) high and the other words in letters 
at least 5 cm (2 inches) high. The letters must be white on a blue 
background.
    (4) Before a manhole cover or outlet valve cap is removed from a 
tank car, the car must be relieved of all interior pressure by cooling 
the tank with water or by venting the tank by raising the safety valve 
or opening the dome vent at short intervals. However, if venting to 
relieve pressure will cause a dangerous amount of vapor to collect 
outside the car, venting and unloading must be deferred until the 
pressure is reduced by allowing the car to stand overnight or otherwise 
cooling the contents. These precautions are not necessary when the car 
is equipped with a manhole cover which hinges inward or with an inner 
manhole cover which does not have to be removed to unload the car, and 
when pressure is relieved by piping vapor into a condenser or storage 
tank.
    (b) After the pressure is released, the seal must be broken and the 
manhole cover removed as follows:
    (1) Screw type. The cover must be loosened by placing a bar between 
the manhole cover lug and knob. After two complete turns, so that vent 
openings are exposed, the operation must be stopped, and if there is any 
sound of escaping vapor, the cover must be screwed down tightly and the 
interior pressure relieved as prescribed in paragraph (a)(4) of this 
section, before again attempting to remove the cover.
    (2) Hinged and bolted type. All nuts must be unscrewed one complete 
turn, after which same precautions as prescribed for screw type cover 
must be observed.
    (3) Interior type. All dirt and cinders must be carefully removed 
from around the cover before the yoke is unscrewed.
    (c) When the car is unloaded through a bottom outlet valve, the 
manhole cover must be adjusted as follows:
    (1) Screw type. The cover must be put in place, but not entirely 
screwed down, so that air may enter the tank through the vent holes in 
threaded flange of the cover.
    (2) Hinged and bolted type. A non-metallic block must be placed 
under one edge of the cover.
    (3) Interior type. The screw must be tightened up in the yoke so 
that the cover is brought up within one-half inch of the closed 
position.
    (d) When unloading through the bottom outlet of a car equipped with 
an interior manhole type cover, and in each case where unloading is done 
through the manhole (unless a special cover with a safety vent opening 
and a tight connection for the discharge outlet is used), the manhole 
must be protected by asbestos or metal covers against the entrance of 
sparks or other sources of ignition of vapor, or by being covered and 
surrounded with wet burlap or similar cloth material. The burlap or 
other cloth must be kept damp by the replacement or the application of 
water as needed.
    (e) Seals or other substances must not be thrown into the tank and 
the contents may not be spilled over the car or tank.
    (f) The valve rod handle or control in the dome must be operated 
several times to see that outlet valve in bottom of tank is on its seat 
before valve cap is removed.
    (g) The valve cap, or the reducer when a large outlet is to be used, 
must be removed with a suitable wrench after the set screws are loosened 
and a pail must be placed in position to catch any liquid that may be in 
the outlet chamber. If the valve cap or reducer does not unscrew easily, 
it may be tapped lightly with a mallet or wooden block in an upward 
direction. If leakage shows upon starting the removal,

[[Page 604]]

the cap or reducer may not be entirely unscrewed. Sufficient threads 
must be left engaged and sufficient time allowed to permit controlled 
escape of any accumulation of liquid in the outlet chamber. If the 
leakage stops or the rate of leakage diminishes materially, the cap or 
reducer may be entirely removed. If the initial rate of leakage 
continues, further efforts must be made to seat the outlet valve (see 
paragraph (f) of this section). If this fails, the cap or reducer must 
be screwed up tight and the tank must be unloaded through the dome. If 
upon removal of the outlet cap the outlet chamber is found to be blocked 
with frozen liquid or any other matter, the cap must be replaced 
immediately and a careful examination must be made to determine whether 
the outlet casting has been cracked. If the obstruction is not frozen 
liquid, the car must be unloaded through the dome. If the obstruction is 
frozen liquid and no crack has been found in the outlet casting, the car 
may, if circumstances require it, be unloaded from the bottom by 
removing the cap and attaching unloading connections immediately. Before 
opening the valve inside the tank car, steam must be applied to the 
outside of the outlet casting or wrap casting with burlap or other rags 
and hot water must be applied to melt the frozen liquid.
    (h) Unloading connections must be securely attached to unloading 
pipes on the dome or to the bottom discharge outlets before any 
discharge valves are opened.
    (i) Tank cars may not be allowed to stand with unloading connections 
attached after unloading is completed. Throughout the entire period of 
unloading, and while car is connected to unloading device, the car must 
be attended by the unloader.
    (j) If necessary to discontinue unloading a tank car for any reason, 
all unloading connections must be disconnected. All valves must first be 
tightly closed, and the closures of all other openings securely applied.
    (k) As soon as a tank car is completely unloaded, all valves must be 
made tight by the use of a bar, wrench or other suitable tool, the 
unloading connections must be removed and all other closures made tight.
    (l) Railroad defect cards may not be removed.
    (m) If oil or gasoline has been spilled on the ground around 
connections, it must be covered with fresh, dry sand or dirt.
    (n) All tools and implements used in connection with unloading must 
be kept free of oil, dirt, and grit.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-43, 48 FR 27699, June 16, 1983; 
Amdt. 174-68, 55 FR 52678, Dec. 21, 1990; 56 FR 66280, Dec. 20, 1991; 
Amdt. 174-81, 60 FR 49111, Sept. 21, 1995; Amdt. 174-83, 61 FR 28678, 
June 5, 1996]



Sec. 174.81  Segregation of hazardous materials.

    (a) This section applies to materials which meet one or more of the 
hazard classes defined in this subchapter and are in packages which are 
required to be labeled or placarded under the provisions of part 172 of 
this subchapter.
    (b) When a rail car is to be transported by vessel, other than a 
ferry vessel, hazardous materials on or within that rail car must be 
stowed and segregated in accordance with Sec. 176.83(b) of this 
subchapter.
    (c) In addition to the provisions of paragraph (d) of this section, 
cyanides or cyanide mixtures may not be loaded or stored with acids.
    (d) Hazardous materials may not be loaded, transported, or stored 
together, except as provided in this section, and in accordance with the 
following Table:

[[Page 605]]



                                                                            Segregation Table for Hazardous Materials                                                                           
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                        6.1                     
                                                     1.1,                                             2.3 gas    2.3 gas                                              liquids          8 liquids
       Class or Division                   Notes     1.2    1.3    1.4    1.5    1.6    2.1    2.2     Zone A     Zone B     3     4.1    4.2    4.3    5.1    5.2   PG I Zone    7       only  
                                                                                                                                                                         A                      
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Explosives....................  1.1 and  A          *      *      *      *      *      X      X      X          X          X      X      X      X      X      X      X          X      X        
                                    1.2                                                                                                                                                         
Explosives....................      1.3  .........  *      *      *      *      *      X      .....  X          X          X      .....  X      X      X      X      X          .....  X        
Explosives....................      1.4  .........  *      *      *      *      *      O      .....  O          O          O      .....  O      .....  .....  .....  O          .....  O        
Very insensitive explosives...      1.5  A          *      *      *      *      *      X      X      X          X          X      X      X      X      X      X      X          X      X        
Extremely insensitive               1.6  .........  *      *      *      *      *      .....  .....  .........  .........  .....  .....  .....  .....  .....  .....  .........  .....  .........
 explosives.                                                                                                                                                                                    
Flammable gases...............      2.1  .........  X      X      O      X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  O          O      .........
Non-toxic, non-flammable gases      2.2  .........  X      .....  .....  X      .....  .....  .....  .........  .........  .....  .....  .....  .....  .....  .....  .........  .....  .........
Poisonous gas Zone A..........      2.3  .........  X      X      O      X      .....  X      .....  .........  .........  X      X      X      X      X      X      .........  .....  X        
Poisonous gas Zone B..........      2.3  .........  X      X      O      X      .....  O      .....  .........  .........  O      O      O      O      O      O      .........  .....  O        
Flammable liquids.............        3  .........  X      X      O      X      .....  .....  .....  X          O          .....  .....  .....  .....  O      .....  X          .....  .........
Flammable solids..............      4.1  .........  X      .....  .....  X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  O        
Spontaneously combustible           4.2  .........  X      X      O      X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  X        
 materials.                                                                                                                                                                                     
Dangerous when wet materials..      4.3  .........  X      X      .....  X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  O        
Oxidizers.....................      5.1  A          X      X      .....  X      .....  .....  .....  X          O          O      .....  .....  .....  .....  .....  X          .....  O        
Organic peroxides.............      5.2  .........  X      X      .....  X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  O        
Poisonous liquids PG I Zone A.      6.1  .........  X      X      O      X      .....  O      .....  .........  .........  X      X      X      X      X      X      .........  .....  X        
Radioactive materials.........        7  .........  X      .....  .....  X      .....  O      .....  .........  .........  .....  .....  .....  .....  .....  .....  .........  .....  .........
Corrosive liquids.............        8  .........  X      X      O      X      .....  .....  .....  X          O          .....  O      X      O      O      O      X          .....  .........

[[Page 606]]

                                                                                                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    (e) Instructions for using the segregation table for hazardous 
materials in paragraph (d) of this section are as follows:
    (1) The absence of any hazard class or division, or a blank space in 
the Table indicates that no restrictions apply.
    (2) The letter ``X'' in the Table indicates that these materials may 
not be loaded, transported, or stored together in the same rail car or 
storage facility during the course of transportation.
    (3) The letter ``O'' in the Table indicates that these materials may 
not be loaded, transported, or stored together in the same rail car or 
storage facility during the course of transportation unless separated in 
a manner that, in the event of leakage from packages under conditions 
normally incident to transportation, commingling of hazardous materials 
would not occur. Notwithstanding the methods of separation employed, 
Class 8 (corrosive) liquids may not be loaded above or adjacent to Class 
4 (flammable) or Class 5 (oxidizing) materials; except that shippers may 
load carload shipments of such materials together when it is known that 
the mixture of contents would not cause a fire or a dangerous evolution 
of heat or gas.
    (4) The ``*'' in the Table indicates that segregation among 
different Class 1 (explosive) materials is governed by the compatibility 
table in paragraph (f) of this section.
    (5) The note ``A'' in the second column of the Table means that, 
notwithstanding the requirements of the letter ``X'', ammonium nitrate 
fertilizer may be loaded or stored with Division 1.1 (Class A explosive) 
or Division 1.5 (blasting agents) materials.
    (6) When the Sec. 172.101 Table or Sec. 172.402 of this subchapter 
requires a package to bear a subsidiary hazard label, segregation 
appropriate to the subsidiary hazard must be applied when that 
segregation is more restrictive than that required by the primary 
hazard. However, hazardous materials of the same class may be stowed 
together without regard to segregation required by any secondary hazard 
if the materials are not capable of reacting dangerously with each other 
and causing combustion or dangerous evolution of heat, evolution of 
flammable, poisonous, or asphyxiant gases, or formation of corrosive or 
unstable materials.
    (f) Class 1 (explosive) materials may not be loaded, transported, or 
stored together, except as provided in this section, and in accordance 
with the following Table:

[[Page 607]]



                                                  Compatibility Table For Class 1 (Explosive) Materials                                                 
--------------------------------------------------------------------------------------------------------------------------------------------------------
      Compatibility group           A         B         C         D         E        F        G        H        J        K        L        N        S   
--------------------------------------------------------------------------------------------------------------------------------------------------------
A.............................            X         X         X         X         X        X        X        X        X        X        X        X      
B.............................  X                   X         4         X         X        X        X        X        X        X        X        4/5    
C.............................  X         X                   2         2         X        X        X        X        X        X        3        4/5    
D.............................  X         4         2                   2         X        X        X        X        X        X        3        4/5    
E.............................  X         X         2         2                   X        X        X        X        X        X        3        4/5    
F.............................  X         X         X         X         X                  X        X        X        X        X        X        4/5    
G.............................  X         X         X         X         X         X                 X        X        X        X        X        4/5    
H.............................  X         X         X         X         X         X        X                 X        X        X        X        4/5    
J.............................  X         X         X         X         X         X        X        X                 X        X        X        4/5    
K.............................  X         X         X         X         X         X        X        X        X                 X        X        4/5    
L.............................  X         X         X         X         X         X        X        X        X        X        1        X        X      
N.............................  X         X         3         3         3         X        X        X        X        X        X                 4/5    
S.............................  X         4/5       4/5       4/5       4/5       4/5      4/5      4/5      4/5      4/5      X        4/5             

[[Page 608]]

                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (g) Instructions for using the compatibility table for Class 1 
(explosive) materials in paragraph (f) of this section are as follows:
    (1) A blank space in the Table indicates that no restrictions apply.
    (2) The letter ``X'' in the Table indicates that explosives of 
different compatibility groups may not be carried on the same rail car, 
unless packed in separate freight containers (e.g., two or more freight 
containers mounted upon the same rail car).
    (3) The numbers in the Table mean the following:
    (i) ``1'' means explosives from compatibility group L may only be 
carried on the same rail car with an identical explosive.
    (ii) ``2'' means any combination of explosives from compatibility 
group C, D, or E is assigned to compatibility group E.
    (iii) ``3'' means any combination of explosives from compatibility 
group C, D, or E with those in compatibility group N is assigned to 
compatibility group D.
    (iv) ``4'' means detonators and detonating primers, Division 1.4S 
(Class C explosives), may not be loaded in the same car with Division 
1.1 and 1.2 (Class A explosive) materials.
    (v) ``5'' means Division 1.4S fireworks may not be loaded in the 
same car with Division 1.1 or 1.2 (Class A explosive) materials.
    (h) Except as provided in paragraph (i) of this section, explosives 
of the same compatibility group but of different divisions may be 
transported together provided that the whole shipment is transported as 
though its entire contents were of the lower numerical division (i.e., 
Division 1.1 being lower than Division 1.2). For example, a mixed 
shipment of Division 1.2 (Class A explosive) materials and Division 1.4 
(Class C explosive) materials, compatibility group D, must be 
transported as Division 1.2 (Class A explosive) materials.
    (i) When Division 1.5 (blasting agent) materials, compatibility 
group D are transported in the same freight container as Division 1.2 
(Class A explosive) materials, compatibility group D, the shipment must 
be transported as Division 1.1 (Class A explosive) materials, 
compatibility group D.
[Amdt. 174-68, 55 FR 52678, Dec. 21, 1990, as amended at 56 FR 66280-
66281, Dec. 20, 1991; 57 FR 45464, Oct. 1, 1992; Amdt. 174-68, 57 FR 
59310, Dec. 15, 1992; Amdt. 174-75, 58 FR 50237, Sept. 24, 1993; Amdt. 
174-83, 61 FR 51339, Oct. 1, 1996]



   Subpart D--Handling of Placarded Rail Cars, Transport Vehicles and 
                           Freight Containers



Sec. 174.82  General requirements for the handling of placarded rail cars, transport vehicles, freight containers, and bulk packages.

    (a) Unless otherwise specified, this subpart does not apply to the 
handling of rail cars, transport vehicles, freight containers, or bulk 
packagings, which contain Division 1.6, combustible liquids, Division 
6.1 PG III materials, Class 9 materials, or ORM-D materials.
    (b) A placarded rail car, transport vehicle, freight container, or 
bulk package may not be transported in a passenger train.
[Amdt. 174-68, 55 FR 52680, Dec. 21, 1990, as amended at 56 FR 66281, 
Dec. 20, 1991; 57 FR 45464, Oct. 1, 1992; Amdt. 174-74, 58 FR 51533, 
Oct. 1, 1993]



Sec. 174.83  Switching placarded rail cars, transport vehicles, freight containers, and bulk packagings.

    (a) In switching operations where the use of hand brakes is 
necessary--
    (1) It must be determined by trial whether a loaded, placarded car, 
or a car occupied by a rider in a draft containing a placarded car, has 
its hand brakes in proper working condition before it is cut off;
    (2) A loaded, placarded tank car or a draft which includes a loaded 
placarded tank car may not be cut off until the preceeding rail car 
clears the ladder track; and
    (3) A loaded, placarded tank car or a draft which includes a loaded 
placarded tank car must clear the ladder track before another rail car 
is allowed to follow.
    (b) Any loaded rail car placarded for a Division 1.1 or Division 1.2 
explosive, a Division 2.3 Hazard Zone A gas or a

[[Page 609]]

Division 6.1 PG I Hazard Zone A material, or a Class DOT 113 tank car 
displaying a Division 2.1 (flammable gas) placard, including a Class DOT 
113 tank car containing only a residue of a Division 2.1 material, may 
not be:
    (1) Cut off while in motion;
    (2) Coupled into with more force than is necessary to complete the 
coupling; or
    (3) Struck by any car moving under its own momentum.
    (c) A placarded flatcar, or a flatcar carrying a placarded transport 
vehicle, freight container, or bulk packaging under this subchapter may 
not be cut off while in motion.
    (d) No rail car moving under its own momentum may be permitted to 
strike any placarded flatcar or any flatcar carrying a placarded 
transport vehicle, freight container, or bulk packaging.
    (e) No placarded flatcar or any flatcar carrying a placarded 
transport vehicle, freight container, or bulk packaging may be coupled 
into with more force than is necessary to complete the coupling.
    (f) When transporting a rail car, transport vehicle, or freight 
container placarded for Division 1.1 or 1.2 (Class A explosive) 
materials in a terminal, yard, or on a side track or siding, the 
placarded rail car must be separated from the engine by at least one 
non-placarded rail car and must be placed in a location so that it will 
be safe from danger of fire. A rail car, transport vehicle, or freight 
container placarded for Division 1.1 or 1.2 (Class A explosive) 
materials may not be placed under a bridge or overhead crossing, or in 
or alongside a passenger shed or station, except during transfer 
operations.
[Amdt. 174-68, 55 FR 52680, Dec. 21, 1990, as amended at 56 FR 66281, 
Dec. 20, 1991; Amdt. 174-75, 58 FR 50237, Sept. 24, 1993; Amdt. 174-77, 
59 FR 48549, Sept. 21, 1994; Amdt. 174-83, 61 FR 51339, Oct. 1, 1996]



Sec. 174.84  Position in train of loaded placarded rail cars, transport vehicles, freight containers or bulk packagings when accompanied by guards or technical 
          escorts.

    A rail car placarded in Division 1.1 or 1.2 (Class A explosive); 
Division 2.3 (Hazard Zone A; poisonous gas); or Division 6.1 (PG I, 
Hazard Zone A; poisonous liquid) in a moving or standing train must be 
next to and ahead of any car occupied by the guards or technical escorts 
accompanying the placarded rail car. However, if a rail car occupied by 
the guards or technical escorts has temperature control equipment in 
operation, it must be the fourth car behind any car requiring Division 
1.1 or 1.2 (Class A explosive) placards.
[Amdt. 174-68, 55 FR 52680, Dec. 21, 1990, as amended at 56 FR 66281, 
Dec. 20, 1991]



Sec. 174.85  Position in train of placarded cars, transport vehicles, freight containers, and bulk packagings.

    (a) Except as provided in paragraphs (b) and (c) of this section, 
the position in a train of each loaded placarded car, transport vehicle, 
freight container, and bulk packaging must conform to the provisions of 
this section.
    (b) A car placarded ``RADIOACTIVE'' must comply with train 
positioning requirements of paragraph (d) of this section and must be 
separated from a locomotive, occupied caboose, or carload of undeveloped 
film by at least one non-placarded car.
    (c) A tank car containing the residue of a hazardous material must 
be separated from a locomotive or occupied caboose by at least one rail 
car other than a placarded tank car.
    (d) Position of rail cars in a train. In the following table:

      

                      Position in Train of Placarded Cars Transporting Hazardous Materials                      
----------------------------------------------------------------------------------------------------------------
                                   Placard Group       Placard Group 2          Placard Group 3        Placard  
                                         1       --------------------------------------------------    Group 4  
           RESTRICTIONS           ---------------                                                  -------------
                                      Rail Car      Tank Car     Rail Car    Tank Car    Rail Car     Rail Car  
----------------------------------------------------------------------------------------------------------------
1. When train length permits,      X              X                         X                                   
 placarded car may not be nearer                                                                                
 than the sixth car from the                                                                                    
 engine or occupied caboose.                                                                                    
2. When train length does not      X              X                         X                                   
 permit, placarded car must be                                                                                  
 placed near the middle of the                                                                                  
 train, but not nearer than the                                                                                 
 second car from an engine or                                                                                   
 occupied caboose.                                                                                              

[[Page 610]]

                                                                                                                
3. A placarded car may not be      X              X                         X                                   
 placed next to an open-top car                                                                                 
 when any of the lading in the                                                                                  
 open top car protrudes beyond                                                                                  
 the car ends, or if the lading                                                                                 
 shifted, would protrude beyond                                                                                 
 the car ends..                                                                                                 
4. A placarded car may not be      X              X                         X                                   
 placed next to a loaded flat                                                                                   
 car, except closed TOFC/COFC                                                                                   
 equipment, auto carriers, and                                                                                  
 other specially equipped cars                                                                                  
 with tie-down devices for                                                                                      
 securing vehicles. Permanent                                                                                   
 bulk head flat cars are                                                                                        
 considered the same as open-top                                                                                
 cars.                                                                                                          
5. A placarded car may not be      X              X                         X                                   
 placed next to any transport                                                                                   
 vehicle or freight container                                                                                   
 having an internal combustion                                                                                  
 engine or an open-flame device                                                                                 
 in operation..                                                                                                 
6. Placarded cars may not be                                                                                    
 placed next to each other based                                                                                
 on the following:                                                                                              
    Placard Group 1..............                 X            X            X           X           X           
    Placard Group 2..............  X                                        X           X           X           
    Placard Group 3..............  X              X            X                                    X           
    Placard Group 4..............  X              X            X            X           X                       
----------------------------------------------------------------------------------------------------------------
PLACARD GROUP:                                                                                                  
Group 1--Divisions 1.1 and 1.2 (Class A explosive) materials.                                                   
Group 2--Divisions 1.3, 1.4, 1.5 (Class B and C explosive), Class 2 (compressed gas; other than Div 2.3, PG I,  
  Zone A), Class 3 (flammable liquid), Class 4 (flammable solid), Class 5 (oxidizing), Class 6 (poisonous       
  liquid; other than Div 6.1, PG I, Zone A), and Class 8 (corrosive) materials.                                 
Group 3--Divisions 2.3 (PG I, Zone A; poisonous gas) and 6.1 (PG I, Zone A; poisonous liquid) materials.        
Group 4--Class 7 (radioactive) materials.                                                                       

    (1) Where an ``X'' appears at the intersection of a Placard Group 
column and a Restriction row, the corresponding restriction applies.
    (2) ``Rail Car'' means a car other than a tank car.
    (3) For purposes of this subpart, each unit of an articulated 
intermodal rail car shall be considered as one car.
[Amdt. 174-68, 55 FR 52680, Dec. 21, 1990, as amended at 57 FR 45464, 
Oct. 1, 1992; Amdt. 174-83, 61 FR 28678, June 5, 1996; Amdt.174-83, 61 
FR 50255, Sept. 25, 1996; Amdt. 174-83, 61 FR 51339, Oct. 1, 1996]



Sec. 174.86  Maximum allowable operating speed.

    For molten metals and molten glass shipped in packagings other than 
those prescribed in Sec. 173.247 of this subchapter, the maximum 
allowable operating speed may not exceed 15 mph for shipments by rail.
[Amdt. 174-69, 56 FR 49990, Oct. 2, 1991]



                Subpart E--Class I (Explosive) Materials



Sec. 174.101  Loading Class 1 (explosive) materials.

    (a) Boxes containing Division 1.1 or 1.2 (Class A explosive) 
materials must be loaded so that the ends of wooden boxes will not bear 
against sides of any fiberboard boxes and so that the ends of any box 
will not cause a pressure point on a small area of another box.
    (b) Explosive bombs, unfuzed projectiles, rocket ammunition and 
rocket motors, Division 1.1, 1.2, or 1.3 (Class A or Class B explosive) 
materials, which are not packed in wooden boxes, or large metal packages 
of incendiary bombs, each weighing 226 kg (500 pounds) or more, may be 
loaded in stock cars or in flat bottom gondola cars only if they are 
adequately braced. Boxed bombs, rocket ammunition and rocket motors, 
Division 1.1, 1.2, or 1.3 (Class A or Class B explosive) materials, 
which due to their size cannot be loaded in closed cars, may be loaded 
in open-top cars or on flatcars, provided they are protected from the 
weather and accidental ignition.

[[Page 611]]

    (c) Boxes of Division 1.1 or 1.2 (Class A explosive) materials 
packed in long cartridges, bags, or sift-proof liners, and containing no 
liquid explosive ingredient, may be loaded on their sides or ends.
    (d) Division 1.1 or 1.2 (Class A explosive) materials may not be 
loaded higher than any permanent car lining unless additional lining is 
provided as high as the lading.
    (e) When the lading of a car includes any Class 1 (explosive) 
materials, the weight of the lading must be distributed insofar as 
possible to equalize the weight on each side of the car and over the 
trucks.
    (f) Except when boxed, metal kegs containing Class 1 (explosive) 
materials must be loaded on their sides with their ends toward the ends 
of the car. Packages of Class 1 (explosive) materials may not be placed 
in the space opposite the doors unless the doorways are boarded on the 
inside as high as the lading. This paragraph does not apply to 
palletized packages if they are braced so they cannot fall or slide into 
the doorways during transportation.
    (g) Wooden kegs, fiber kegs, barrels, and drums must be loaded on 
their sides or ends, to best suit the conditions.
    (h) Packages containing any Division 1.1 or 1.2 (Class A explosive) 
materials for (see Sec. 174.104), detonators, detonator assemblies, or 
boosters with detonators must be securely blocked and braced to prevent 
the packages from changing position, falling to the floor, or sliding 
into each other, under conditions normally incident to transportation. 
Class 1 (explosive) materials must be loaded so as to avoid transfer at 
stations. For recommended methods of blocking and bracing, see Bureau of 
Explosives Pamphlets No. 6 and 6A. Heavy packages or containers must be 
trucked, rolled, or moved by skids, fork trucks, or other handling 
devices and may not be dropped from trucks, platforms, or cars. Planks 
for rolling trucks from platforms to cars must have beveled ends. 
Loading platforms and the shoes of each workman must be free from grit. 
All possible precautions must be taken against fire. Class 1 (explosive) 
materials must be kept in a safe place and inaccessible to unauthorized 
persons while being held by a carrier for loading or delivery.
    (i) To prevent delays of local freight trains, when there are 
shipments of Class 1 (explosive) materials for different destinations 
loaded in a ``peddler car'' or ``way car'' the shipment for each 
destination must be stayed separately.
    (j) Forwarding and transfer stations for Class 1 (explosive) 
materials must be provided with the necessary materials for staying.
    (k) Shippers must furnish the material for staying packages of Class 
1 (explosive) materials loaded by them.
    (l) Division 1.1 or 1.2 (Class A explosive) materials may not be 
loaded, transported, or stored in a rail car equipped with any type of 
lighted heater or open-flame device, or electric devices having exposed 
heating coils, or in a rail car equipped with any apparatus or mechanism 
utilizing an internal combustion engine in its operation.
    (m) [Reserved]
    (n) A container car or freight container on a flatcar or a gondola 
car other than a drop-bottom car, when properly loaded, blocked, and 
braced to prevent change of position under conditions normally incident 
to transportation, may be used to transport any Division 1.1 or 1.2 
(Class A explosive) material except black powder packed in metal 
containers. A freight container must be designed, constructed, and 
maintained so as to be weather tight and capable of preventing the 
entrance of sparks. In addition:
    (1) A freight container must be of such design and so braced as to 
show no evidence of failure of the container or the bracing when 
subjected to impact from each end of at least 13 km (8.1 miles) per 
hour. Its efficiency shall be determined by actual test, using dummy 
loads equal in weight and general character to material to be shipped.
    (2) A container car or car which is loaded with freight containers 
must be placarded with the Class 1 (explosive) materials placards as 
required by subpart F of part 172 of this subchapter and with properly 
executed car certificates as required by Sec. 174.104.
    (3) Lading must be so loaded, blocked, and braced within the freight

[[Page 612]]

container that it will not change position under impact from each end of 
at least 13 km (8.1 miles) per hour.
    (o) Division 1.1, 1.2, or 1.3 (Class A or Class B explosive) 
materials may be loaded and transported in a tight closed truck body or 
trailer on a flatcar. Wooden boxed bombs, rocket ammunition, and rocket 
motors, Division 1.1, 1.2, or 1.3 (Class A or Class B explosive) 
materials, which due to their size cannot be loaded in tight, closed 
truck bodies or trailers, may be loaded in or on open-top truck bodies 
or trailers. However, they must be protected against accidental 
ignition. In addition:
    (1) Each truck body or trailer must meet the requirements of part 
177 of this subchapter, applicable to shipments of Class 1 (explosive) 
materials by motor vehicle.
    (2) Each truck body or trailer must be so secured on the rail car so 
that it will not permanently change position or show evidence of failure 
or impending failure of the method of securing the truck body or trailer 
under impact from each end of at least 13 km (8.1 miles) per hour. Its 
efficiency shall be determined by actual test, using dummy loads equal 
in weight and general character to the material to be shipped. For 
recommended methods of blocking and bracing, see Bureau of Explosives 
Pamphlet 6C.
    (3) Lading must be so loaded, blocked, and braced within or on the 
truck body or trailer that it will not change position under impact from 
each end of at least 13 km (8.1 miles) per hour. For recommended methods 
of blocking and bracing see Bureau of Explosives Pamphlet 6C.
    (4) Each rail car containing Class 1 (explosive) materials and each 
rail car loaded with truck bodies, trailers or containers containing 
Class 1 (explosive) materials must be placarded with Class 1 (explosive) 
materials placards as required by subpart F of part 172 of this 
subchapter and with properly executed car certificates as required by 
Sec. 174.104.
    (5) Each fuel tank of a heater or refrigerating machinery on the 
truck bodies or trailers must be drained and all automatic heating or 
refrigerating machinery must be made inoperative by disconnection of the 
automatic controls or the source of power for their operations.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-26B, 41 FR 57071, Dec. 30, 1976; 
Amdt. 174-36, 44 FR 70732, Dec. 10, 1979; Amdt. 174-59, 51 FR 5974, Feb. 
18, 1986; Amdt. 174-68, 55 FR 52681, Dec. 21, 1990; Amdt. 174-83, 61 FR 
51339, Oct. 1, 1996]



Sec. 174.102  Forbidden mixed loading and storage.

    (a) Division 1.1 or 1.2 (Class A explosive) materials and initiating 
or priming explosives may not be transported together in the same rail 
car. Additionally, they may not be transported or loaded in the same 
rail car or stored on carrier property with charged electric storage 
batteries or with any hazardous material for which a NONFLAMMABLE GAS, 
FLAMMABLE GAS, FLAMMABLE LIQUID, FLAMMABLE SOLID, OXIDIZER, ORGANIC 
PEROXIDE, RADIOACTIVE or CORROSIVE label is required.
    (b) Class 1 (explosive) materials may not be loaded together or with 
other hazardous materials, except as provided in Sec. 174.81. See 
Sec. 174.104 for loading shipments of Class 1 (explosive) materials or 
any other material in a placarded and certified car containing a 
shipment of Division 1.1 or 1.2 (Class A explosive) materials.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-68, 
55 FR 52681, Dec. 21, 1990]



Sec. 174.103  Disposition of damaged or astray shipments.

    (a) Packages of Class 1 (explosive) materials found damaged or 
broken in transit may be repaired when practicable and not dangerous. A 
broken box of Division 1.1 or 1.2 (Class A explosive) materials that 
cannot be repaired must be reinforced by stout wrapping paper and twine, 
placed in another strong box and surrounded by dry, fine sawdust or dry 
and clean cotton waste or elastic wads made from dry newspapers. A 
ruptured can or keg must be sealed and enclosed in a strong cloth bag of 
good quality and boxed. Damaged packages thus protected and properly 
marked may be forwarded. The

[[Page 613]]

box and waybill must be marked to indicate that it has been repacked.
    (b) Care must be exercised in repacking damaged containers so that 
no spark is produced by contact of metal or other hard surfaces which 
could ignite loose particles of explosive compositions that may be 
strewn on car floors or freight. In addition, the car floors must be 
thoroughly swept, and washed with a plentiful supply of water. Iron-
wheel trucks, metal hammers, or other metal tools that may produce 
sparks may not be used. Metal tools must be limited to those made of 
brass, bronze, or copper.
    (c) Each package of Class 1 (explosive) materials showing evidence 
of leakage of liquid ingredients must:
    (1) Be refused if leakage is discovered before acceptance;
    (2) Be disposed of to a person who is competent and willing to 
remove them from the carrier's property, if the leakage is discovered 
while the shipment is in transit; or
    (3) Be removed immediately by consignee, if the leakage is 
discovered at the shipment's destination.
    (d) When the disposition required by paragraph (c) of this section 
cannot be made, the leaking package must be packed in other boxes large 
enough to permit enclosure and the leaking boxes must be surrounded by 
at least 5 cm (2 inches) of dry, fine sawdust or dry and clean cotton 
waste, and be stored in a station magazine or other safe place until the 
arrival of an inspector of the Bureau of Explosives, or other authorized 
person, to superintend the destruction or disposition of the condemned 
material.
    (e) If careful inspection shows that an astray shipment of Class 1 
(explosive) materials is in proper condition for safe transportation, it 
must be forwarded immediately to its destination if known, or returned 
to the shipper by the most practicable route.
    (f) When a package in an astray shipment is not in proper condition 
for safe transportation (see paragraphs (a), (c), and (d) of this 
section), or when the name and address of the consignee and the shipper 
are unknown, disposition must be made as prescribed by paragraphs (c) 
and (d) of this section.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-68, 
55 FR 52681, Dec. 21, 1990]



Sec. 174.104  Division 1.1 or 1.2 (Class A explosive) materials; car selection, preparation, inspection, and certification.

    (a) Except as provided in Sec. 174.101 (b), (n), and (o), Division 
1.1 or 1.2 (Class A explosive) materials being transported by rail may 
be transported only in a certified and properly placarded closed car of 
not less than 36,300 kg (80,028 pounds) capacity, with steel underframes 
and friction draft gear or cushioned underframe, except that on a 
narrow-gauge railroad they may be transported in a car of less capacity 
as long as the car of greatest capacity and strength available is used.
    (b) Each rail car used for transporting Division 1.1 or 1.2 (Class A 
explosive) materials must meet the following requirements as applicable:
    (1) The car must be equipped with air brakes, hand brakes, and 
roller bearings which are in condition for service.
    (2) The car may not have any holes or cracks in the roof, sides, 
ends, or doors through which sparks may enter, or unprotected decayed 
spots which may hold sparks and start a fire.
    (3) The roof of the car must be carefully inspected from the outside 
for decayed spots, especially under or near the running board, and such 
spots must be covered or repaired to prevent their holding fire from 
sparks. A car with a roof generally decayed, even if tight, may not be 
used.
    (4) The doors must close tightly so that sparks cannot get in at the 
joints, and, if necessary to achieve this degree of tightness, the doors 
must be stripped. The stripping should be placed on the inside and 
fastened to the door frames where it will form a shoulder against which 
the closed doors are pressed by means of wedges or cleats in door shoes 
or keepers. The openings under the doors should be similarly closed. The 
hasp fastenings must be examined with the doors closed and fastened, and 
the doors must be cleated when necessary to prevent them from shifting. 
When the car is opened for

[[Page 614]]

any reason, the wedges or cleats must be replaced before car containing 
Class 1 (explosive) materials is permitted to proceed.
    (5) The roller bearings and the trucks must be carefully examined 
and put in such condition as to reduce to a minimum the danger of 
hotboxes or other failure necessitating the setting out of the car 
before reaching its destination.
    (6) The car must be carefully swept out before it is loaded. For 
less-than-carload shipments the space in which the packages are to be 
loaded must be carefully swept. If evidence of a potential hazardous 
residue is apparent after the floor has been swept, the carrier must 
either decontaminate the car or provide a suitable substitute car.
    (7) Any holes in the floor or lining must be repaired and special 
care taken that there are no projecting nails or bolts or exposed pieces 
of metal which may work loose or produce holes in packages of Class 1 
(explosive) materials during transit. Protruding nails in the floor or 
lining which have worked loose must be drawn, and if necessary for the 
purpose of fastening the floor or lining, new nails must be driven 
through other parts thereof.
    (8) Metal floor plates must be completely covered with wood, 
plywood, or fiber or composition sheets of adequate thickness and 
strength to prevent contact of the floor plates with the packages of 
Class 1 (explosive) materials under conditions incident to 
transportation, except that the covering of metal floor plates is not 
necessary for carload shipments loaded by the Department of Defense 
provided the Class 1 (explosive) materials are of such nature that they 
are not liable to leakage of dust, powder, or vapor which might become 
the cause of an explosion.
    (9) If the car is equipped with automobile loading devices, it may 
not be used unless the loading device is securely attached to the roof 
of the car with fastenings supplementing those already provided and so 
fixed that it cannot fall.
    (10) The car must be equipped with high-friction composition brake 
shoes (except metal deck flat cars used for COFC/TOFC service may be 
equipped with high phosphorus cast iron brakeshoes) and brake rigging 
designed for this type of brake shoe. Each brake shoe on the car must be 
at least 1 cm (0.4 inch) thick, and in safe and suitable condition for 
service.
    (11) The car must have either a metal subfloor with no combustible 
material exposed beneath the car, or metal spark shields extending from 
center sill to side sills and from end sills to at least 30 cm (12 
inches) beyond the extreme treads of the inside wheels of each truck, 
which are tightly fitted against the subfloor so that there is no vacant 
space or combustible material exposed. The metal subfloor or spark 
shields may not have an accumulation of oil, grease, or other debris 
which could support combustion.
    (c) Before Division 1.1 or 1.2 (Class A explosive) materials may be 
loaded into a rail car, the car must have been inspected and certified 
to be in compliance with the requirements of paragraph (b) of this 
section by a qualified person designated under Sec. 215.11 of this 
title. The certification shall be made in Car Certificate No. 1 on the 
form prescribed in paragraph (f) of this section.
    (d) If the carrier furnishes the car to a shipper for loading 
Division 1.1 or 1.2 (Class A explosive) materials, the shipper or his 
authorized employee shall, before commencing the loading of the car, 
inspect the interior thereof, and after loading certify to the proper 
condition of the car and the loading. This certification shall be made 
on the first signature line in Car Certificate No. 2 on the form 
prescribed in paragraph (f) of this section. In addition, the finished 
load must be inspected and certified to be in compliance with the 
requirements of this part by a qualified person designated under 
Sec. 215.11 of this title before the car goes forward. This 
certification shall be made on the second signature line in Car 
Certificate No. 2 on the form prescribed in paragraph (f) of this 
section. If the loading is performed by the carrier, Car Certificate No. 
2 may only be signed by a qualified person designated under Sec. 215.11 
of this title.
    (e) If a trailer or container containing Division 1.1 or 1.2 (Class 
A explosive) materials is loaded on a flatcar, the loading and securing 
of the load on

[[Page 615]]

the car must be supervised by a representative of the shipper or 
carrier. The certification shall be made in Car Certificate No. 3 on the 
form prescribed in paragraph (f) of this section.
    (f) Each car certificate for use in connection with the inspection 
of rail cars for the carriage of Division 1.1 or 1.2 (Class A explosive) 
materials shall be printed on strong tag board measuring 18 by 18 cm 
(7.1 by 7.1 inches) or 15 by 20 cm (5.9 by 7.9 inches). It must be duly 
executed in triplicate by the carrier, and by the shipper if he loads 
the shipments. The original must be filed by the carrier at the 
forwarding station in a separate file and the other two must be attached 
to the car, one to each outer side on a fixed placard board or as 
otherwise provided.
--------------------------------Railroad

                             CAR CERTIFICATE

 No. 1 -------------- Station___________________________________________
19--.
    I hereby certify that I have this day personally examined Car Number 
------ and that the car is in condition for service and complies with 
the FRA Freight Car Safety Standards (49 CFR part 215) and with the 
requirements for freight cars used to transport explosives prescribed by 
the DOT Hazardous Materials Regulation (49 CFR part 174).

    Qualified Person Designated Under
              49 CFR 215.11
 No. 2 -------------- Station___________________________________________
19--.
    I have this day personally examined the above car and hereby certify 
that the explosives in or on this car, or in or on vehicles or in 
containers have been loaded and braced; that placards have been applied, 
according to the regulations prescribed by the Department of 
Transportation; and that the doors of cars so equipped fit or have been 
stripped so that sparks cannot enter.

      Shipper or his authorized agent

    Qualified Person Designated Under
              49 CFR 215.11
 No. 3 -------------- Station___________________________________________
19--.
    I hereby certify that I have this day personally supervised the 
loading of the vehicles or containers on and their securement to the 
above car.

  Shipper or railway employee inspecting
          loading and securement

    Note 1: A shipper must decline to use a car not in proper condition.
    Note 2: All certificates, where applicable, must be signed.
    Note 3: Car certificates remaining on hand as of the effective date 
of these regulations may be used until stocks are exhausted but not 
after July 1, 1977.

[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 174.104, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 174.105  Routing shipments, Division 1.1 or 1.2 (Class A explosive) materials.

    Before a shipment of Division 1.1 or 1.2 (Class A explosive) 
materials destined to a point beyond the lines of the initial carrier is 
accepted from the shipper, the initial carrier shall ascertain that the 
shipment can go forward by the route designated. To avoid delays en 
route, the initial carrier must be in possession of full rate 
information before forwarding the shipment.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-68, 
55 FR 52682, Dec. 21, 1990]



Sec. 174.106  ``Order-Notify'' or ``C.O.D.'' shipments, Division 1.1 or 1.2 (Class A explosive) materials.

    (a) A carrier may not accept for transportation Division 1.1 or 1.2 
(Class A explosive) materials, detonators, or detonating primers in any 
quantity when consigned to ``order-notify'' or ``C.O.D.'', except on a 
through bill of lading to a place outside the United States.
    (b) A carrier may not accept for transportation Division 1.1 or 1.2 
(Class A explosive) materials, detonators, or detonating primers which 
the shipper consigns to himself unless the shipper has a resident 
representative to receive them at the delivery point.
    (c) A carrier may not accept Division 1.1 or 1.2 (Class A explosive) 
materials for transportation subject to ``stop-off privileges en route 
for partial loading or unloading.''
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-36, 
44 FR 70732, Dec. 10, 1979; Amdt. 174-68, 55 FR 52682, Dec. 21, 1990]

[[Page 616]]



Sec. 174.110  Car magazine.

    When specially authorized by the carrier, Division 1.1 or 1.2 (Class 
A explosive) materials in quantity not exceeding 68 kg (150 pounds) may 
be carried in construction or repair cars if the packages of Class 1 
(explosive) materials are placed in a ``magazine'' box made of sound 
lumber not less than 2.5 cm (0.98 inch) thick, covered on the exterior 
with metal, and provided with strong handles. The box must be plainly 
stenciled on the top, sides, and ends, in letters not less than 5 cm (2 
inches) high, ``EXPLOSIVES--DANGEROUS--HANDLE CAREFULLY''. The box must 
be provided with strong hinges and with a lock for keeping it securely 
closed. Vacant space in the box must be filled with a cushioning 
material such as sawdust or excelsior, and the box must be properly 
stayed to prevent movement within the car. The car must be placarded 
with EXPLOSIVES 1.1 or 1.2 (EXPLOSIVES A) placards when the magazine 
contains Division 1.1 or 1.2 (Class A explosive) materials.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-68, 55 FR 52682, Dec. 21, 1990]



Sec. 174.112  Loading Division 1.3 (Class B explosive) materials and Division 1.2 (devices corresponding to Class B explosive) materials (Also see 
          Sec. 174.101).

    (a) Division 1.3 (Class B explosive) materials and Division 1.2 
(devices corresponding to Class B explosive) materials may not be 
loaded, transported or stored in a rail car equipped with any type of 
lighted heater or open-flame device, or in a rail car equipped with any 
apparatus or mechanism utilizing an internal combustion engine in its 
operation.
    (b) Except as provided in Sec. 174.101(b), (n), or (o) Division 1.3 
(Class B explosive) materials and Division 1.2 (devices corresponding to 
Class B explosive) materials must be transported in a closed car or 
container car which is in good condition, and into which sparks cannot 
enter. The car does not require the car certificates prescribed in 
Sec. 174.104(c) through (f). If the doors are not tight, they must be 
stripped to prevent the entrance of sparks. Wood floored cars must be 
equipped with spark shields (see Sec. 174.104). Packages of Division 1.3 
(Class B explosive) materials and Division 1.2 (devices corresponding to 
Class B explosive) materials must be blocked and braced to prevent their 
movement and possible damage due to movement of other freight during 
transportation. For recommended methods of blocking and bracing see 
Bureau of Explosives Pamphlet No. 6.
    (c) Division 1.3 (Class B explosive) materials and Division 1.2 
(devices corresponding to Class B explosive) materials may not be 
transported in a truck body, trailer, or container on a flatcar unless:
    (1) The truck body, trailer, or container is closed and tight;
    (2) All automatic heating or refrigerating machinery with which the 
truck body, trailer, or container is equipped is inoperative; and
    (3) Packages of Division 1.3 (Class B explosive) materials and 
Division 1.2 (devices corresponding to Class B explosive) materials are 
blocked and braced within the truck body, trailer, or container to 
prevent their movement and possible damage due to movement of other 
freight during transportation (ends, sidewalls, or doors of the truck 
body, trailer, or container may not be relied on to prevent the shifting 
of heavy loads). For recommended methods of blocking and bracing see 
Bureau of Explosives Pamphlet No. 6C. See Sec. 174.101(o).
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26B, 
41 FR 57072, Dec. 30, 1976; Amdt. 174-68, 55 FR 52682, Dec. 21, 1990; 
Amdt. 174-83, 61 FR 51339, Oct. 1, 1996]



Sec. 174.114  Record to be made of change of seals on ``Cars loaded with Division 1.1 or 1.2 (explosive) materials''.

    When a car seal is changed on a car requiring ``EXPLOSIVES 1.1 or 
EXPLOSIVES 1.2 (EXPLOSIVES A) placards'' while en route or before 
delivery to a consignee, a record of the change showing the following 
information must be made on or attached to the waybill or other form of 
memorandum which must accompany the car to its destination:


[[Page 617]]


        Railroad    Place    Date

      Car Initials      Car Number Number or description of seal broken

 Number or description of seal used to reseal car_______________________

 Reasons for opening car________________________________________________

 Condition of load______________________________________________________

 Name and occupation of person opening car______________________________

[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-68, 55 FR 52682, Dec. 21, 1990]



Sec. 174.115  Loading Division 1.4 (Class C explosive) materials.

    (a) Division 1.4 (Class C explosive) materials may be loaded into 
any closed car in good condition, or into any container car in good 
condition. Car certificates are not required. Packages of Division 1.4 
(Class C explosive) materials must be blocked and braced to prevent 
their movement and possible damage due to movement of other freight 
during transportation. For methods of recommended loading and bracing 
see Bureau of Explosives Pamphlet No. 6.
    (b) Division 1.4 (Class C explosive) materials may not be 
transported in a truck body, trailer, or container on a flatcar unless:
    (1) The truck body, trailer, or container is closed and tight;
    (2) All automatic heating or refrigerating machinery with which the 
truck body, trailer, or container is equipped is inoperative; and
    (3) Packages of Division 1.4 (Class C explosive) materials are 
blocked and braced within the truck body, trailer, or container to 
prevent their movement and possible damage due to movement of other 
freight during transportation. Ends, side walls, or doors of the truck 
body, trailer, or container may not be relied on to prevent shifting of 
heavy loads. For recommended methods of blocking and bracing see Bureau 
of Explosives Pamphlet No. 6C.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-36, 
44 FR 70732, Dec. 10, 1979; Amdt. 174-68, 55 FR 52682, Dec. 21, 1990]



     Subpart F--Detailed Requirements for Class 2 (Gases) Materials



Sec. 174.200  Special handling requirements.

    (a) Division 2.1 (flammable gas) materials may not be loaded, 
transported, or stored in a rail car equipped with any type of lighted 
heater or open-flame device, or in a rail car equipped with any 
apparatus or mechanism utilizing an internal combustion engine in its 
operation.
    (b) Division 2.1 (flammable gas) materials may not be loaded in a 
truck body or trailer equipped with any type of lighted heater or any 
automatic heating or refrigerating apparatus when such truck bodies or 
trailers are loaded on flatcars except as provided in paragraph (c) of 
this section.
    (c) Heating or refrigeration apparatus may be operated on a motor 
vehicle loaded on a flatcar when the motor vehicle is loaded with 
Division 2.1 (flammable gas) materials only if:
    (1) The lading space is not equipped with any electrical apparatus 
that is not non-sparking or explosion-proof;
    (2) There is no combustion apparatus in the lading space;
    (3) There is no connection for the return of air from the lading 
space to any combustion apparatus; and
    (4) The heating system conforms to Sec. 393.77 of this title and 
does not heat any part of the lading over 54  deg.C (129 deg.F).
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-68, 
55 FR 52682, Dec. 21, 1990; 56 FR 66281, Dec. 20, 1991]



Sec. 174.201  Class 2 (gases) material cylinders.

    (a) Except as provided in paragraphs (b) and (c) of this section, 
cylinders containing Class 2 (gases) materials being transported in a 
rail car must be:
    (1) Securely lashed in an upright position so as to prevent their 
overturning;

[[Page 618]]

    (2) Loaded into racks securely attached to the car;
    (3) Packed in boxes or crates of such dimensions as to prevent their 
overturning; or
    (4) Loaded in a horizontal position.
    (b) Specification DOT-4L (Sec. 178.57 of this subchapter) cylinders 
being transported in a rail car must be loaded in an upright position 
and be securely braced.
    (c) Cylinders containing Class 2 (gases) materials may be 
transported in stock cars, gondola cars and flat cars. However, they may 
not be transported in hopper bottom cars.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-32, 43 FR 48644, Oct. 19, 1978; 
Amdt. 174-68, 55 FR 52682, Dec. 21, 1990]



Sec. 174.204  Tank car delivery of gases, including cryogenic liquids.

    (a) A tank car containing Class 2 (gases) material may not be 
unloaded unless it is consigned for delivery and unloaded on a private 
track (see Sec. 171.8 of this subchapter). However, if a private track 
is not available, it may be delivered and unloaded on carrier tracks 
subject to the following conditions:
    (1) A tank car of DOT-106A or 110A type (Sec. 179.300 or 
Sec. 179.301 of this subchapter) may not be delivered and the loaded 
unit tanks may not be removed from the car frame on carrier tracks. 
However, a carrier may give permission for the unloading of these 
containers on carrier tracks only if a private siding is not available 
within a reasonable trucking distance of the final destination. In 
addition, before the car is accepted for transportation, the shipper 
must obtain from the delivering carrier and file with the originating 
carrier, written permission for the removal and the consignee must 
furnish an adequately strong mechanical hoist by which the tanks can be 
lifted from the car and deposited directly upon vehicles furnished by 
the consignee for immediate removal from carrier property.
    (2) The following tank cars may not be delivered and unloaded on 
carrier tracks unless the lading is piped directly from the car to 
permanent storage tanks of sufficient capacity to receive the entire 
contents of the car; however, such cars may be stored on a private track 
(see Sec. 171.8 of this subchapter) or on carrier tracks designated by 
the carrier for such storage:
    (i) A tank car containing Division 2.1 (flammable gas) material that 
is a cryogenic liquid; or
    (ii) A tank car, except for a DOT-106A or 110A multi-unit tank car 
tank (Sec. 179.300 or Sec. 179.301 of this subchapter), containing 
anhydrous ammonia; hydrogen chloride, refrigerated liquid; hydrocarbon 
gas, liquefied; or liquefied petroleum gas; and having interior pipes 
for liquid and gas discharge valves equipped with check valves.
    (b) [Reserved]
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-26A, 
41 FR 40685, Sept. 20, 1976; Amdt. 174-32, 43 FR 48644, Oct. 19, 1978; 
Amdt. 174-43, 48 FR 27699, June 16, 1983; 48 FR 50440, 50441, Nov. 1, 
1983; Amdt. 174-68, 55 FR 52682, Dec. 21, 1990]



Sec. 174.290  Materials extremely poisonous by inhalation shipped by, for, or to the Department of Defense.

    (a) General. The provisions of this section apply only to materials 
extremely poisonous by inhalation which are Division 2.3 materials in 
Hazard Zone A and Division 6.1 materials in Hazard Zone A, as defined in 
Sec. 173.133(a)(2) of this subchapter. Such materials when shipped by, 
for, or to the Department of Defense may be transported by rail only if 
loaded and handled in accordance with the requirements of this section.
    (b) A Division 2.3 Hazard Zone A or a Division 6.1 Hazard Zone A 
material extremely poisonous by inhalation may be transported in:
    (1) UN 1N1 or UN 1N2 metal drums or equivalent military 
specification metal drums, by boxcar, gondola car (flat bottom), or 
stock car in carload lots. See Sec. 174.55(a) (1) through (4) and 
Sec. 174.600 for blocking, bracing, and stowage requirements;
    (2) Tanks which are authorized under this subchapter for a Hazard 
Zone A material extremely poisonous by inhalation, Specification DOT 
106A (Secs. 179.300 and 179.301 of this subchapter), mounted on or 
secured to a multi-unit car or gondola car (flat bottom) in carload lots 
only;

[[Page 619]]

    (3) Bombs, by boxcar, or gondola car (flat bottom) in carload lots 
only; or
    (4) Projectiles or ammunition for cannon with gas filled 
projectiles, by boxcar in carload or less-than-carload lots.
    (c) Each shipment of one or more carloads of a material extremely 
poisonous by inhalation, as described in paragraph (b) of this section, 
must be accompanied by a Department of Defense qualified escort supplied 
with equipment to handle leaks and other packaging failures which could 
result in escape of the material. The escort shall remain with the 
shipment during the entire time that it is in the custody of the carrier 
and in the event of leakage or escape of material, shall make repairs 
and perform decontamination as necessary.
    (d) When a material extremely poisonous by inhalation is transported 
in a tank, the tank must be securely mounted on a rail car especially 
provided for it or on a gondola car prepared with substantial wooden 
frames and blocks.
    (e) Bombs, projectiles, and cannon ammunition being transported by 
rail must be loaded, blocked and braced as shown in Bureau of Explosives 
Pamphlet No. 6A, or Department of Defense specifications. When a 
shipment is loaded in a gondola car it must be securely blocked and 
braced and not loaded higher than the sides of the car.
    (f) When a material extremely poisonous by inhalation is transported 
in drums with filling holes in the heads, they must be loaded on their 
bottoms. They may be loaded in rows, lengthwise of the car and any space 
between the sides of the car and the nearest row of drums must be 
``filled in'' with wooden boards or lumber nailed to sides of the car 
sufficient in length and width to contact both hoops of drums, or they 
may be loaded across the car in staggered stacks of which the number of 
drums in alternate stacks is reduced by one drum. All drums in stacks 
following the first stack loaded in the end of the car must be placed 
tightly into the angle of the space formed by the sidewalls of the drum 
in the preceding stack. Any space between the sides of the car and the 
drums in stacks having the greater number of drums must be filled in 
with wooden boards or lumber nailed to sides of the car sufficient in 
length and width to contact both hoops of the drums.
    (g) When a material extremely poisonous by inhalation is transported 
in drums with filling holes in the sides, they must be loaded on their 
sides with the filling holes up. They must be loaded lengthwise of the 
car in rows and any space between the sides of the car and the nearest 
row of drums must be filled in with wooden boards or lumber nailed to 
sides of the car sufficient in length and width to contact both hoops of 
the drums.
    (h) When a material extremely poisonous by inhalation is transported 
in drums in a boxcar, they must be loaded from ends of the car toward 
the space between the car doors, and there braced by center gates and 
wedges. See Sketch 1, Bureau of Explosives Pamphlet No. 6.
    (i) The doorways of a boxcar in which a material poisonous by 
inhalation is being transported must be protected by one of the methods 
prescribed in Sketch 1, Bureau of Explosives Pamphlet No. 6A.
[Amdt. 174-68, 55 FR 52683, Dec. 21, 1990; Amdt. 174-74, 58 FR 51533, 
Oct. 1, 1993]



    Subpart G--Detailed Requirements for Class 3 (Flammable Liquid) 
                                Materials



Sec. 174.300  Special handling requirements.

    (a) Class 3 (flammable liquid) materials may not be loaded, 
transported, or stored in a rail car equipped with any type of lighted 
heater or open-flame device, or in a rail car equipped with any 
apparatus or mechanism utilizing an internal combustion engine in its 
operation.
    (b) A truck body or trailer which is loaded with a Class 3 
(flammable liquid) materials and equipped with a lighted heater or any 
automatic heating or refrigerating apparatus may not be loaded on a 
flatcar except as provided in paragraph (c) of this section.
    (c) Heating or refrigeration apparatus on a motor vehicle loaded 
with Class 3 (flammable liquid) materials

[[Page 620]]

may be operated while the motor vehicle is loaded on a flatcar only if:
    (1) The lading space is not equipped with any electrical apparatus 
that is not non-sparking or explosion-proof;
    (2) There is no combustion apparatus in the lading space;
    (3) There is no connection for the return of air from the lading 
space to any combustion apparatus; and
    (4) The heating system conforms to Sec. 393.77 of this title and 
does not heat any part of the lading over 54  deg.C (129  deg.F).
    (d) Metal barrels or drums containing Class 3 (flammable liquid) 
materials may be transported in a steel gondola or flatcar or in a stock 
car. However, they may not be transported in a hopper bottom car.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-31, 
43 FR 31143, July 20, 1978; Amdt. 174-68, 55 FR 52683, Dec. 21, 1990]



Sec. 174.304  Class 3 (flammable liquid) materials in tank cars.

    A tank car containing a Class 3 (flammable liquid) material, other 
than liquid road asphalt or tar, may not be transported by rail unless 
it is originally consigned or subsequently reconsigned to a party having 
a private track on which it is to be delivered and unloaded (see 
Sec. 171.8 of this subchapter) or to a party using railroad siding 
facilities which are equipped for piping the liquid from the tank car to 
permanent storage tanks of sufficient capacity to receive the entire 
contents of the car.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-32, 
43 FR 48644, Oct. 19, 1978; Amdt. 174-68, 55 FR 52683, Dec. 21, 1990]



                        Subparts H-I  [Reserved]



 Subpart J--Detailed Requirements for Division 6.1 (Poisonous) Materials



Sec. 174.600  Special handling requirements for materials extremely poisonous by inhalation.

    A tank car containing a material extremely poisonous by inhalation 
which is a Division 2.3 material in Hazard Zone A or a Division 6.1 
material in Hazard Zone A, as defined in Sec. 173.133(a)(2) of this 
subchapter, may not be transported by rail unless it is originally 
consigned or subsequently reconsigned to a party having a private track 
on which it is to be delivered and unloaded (see Sec. 171.8 of this 
subchapter) or to a party using railroad siding facilities which are 
equipped for piping the liquid or gas from the tank car to permanent 
storage tanks or sufficient capacity to receive the entire contents of 
the car. See the requirements in Sec. 174.290 for materials extremely 
poisonous by inhalation which are shipped by, for, or to the Department 
of Defense.
[Amdt. 174-68, 55 FR 52684, Dec. 21, 1990]



Sec. 174.615  Cleaning cars.

    (a)  [Reserved]
    (b) After Division 6.1 (poisonous) materials are unloaded from a 
rail car, that car must be thoroughly cleaned unless the car is used 
exclusively in the carriage of Division 6.1 (poisonous) materials.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-68, 
55 FR 52684, Dec. 21, 1990; Amdt. 174-82, 61 FR 18933, Apr. 29, 1996]



Sec. 174.680  Division 6.1 (poisonous) materials with foodstuffs.

    (a) A carrier may not transport any package bearing a POISON label 
in the same car with materials marked as or known to be foodstuffs, 
feed, or any other edible materials intended for consumption by humans 
or animals.
    (b) A carrier must separate any package bearing a KEEP AWAY FROM 
FOOD label from materials marked as or known to be foodstuffs, feed, or 
any other edible materials intended for consumption by humans or animals 
as required in Sec. 174.81(e)(3) for classes identified with the letter 
``O'' in the Segregation Table for Hazardous Materials.
[Amdt. 174-68, 55 FR 52684, Dec. 21, 1990]

    Effective Date Note: By Amdt. 174-84, 62 FR 1236, Jan. 8, 1997, 
Sec. 174.680(a) was revised, effective Oct. 1, 1997. At 62 FR 39398, 
July 22, 1997, the effective date was delayed until Oct. 1, 1998. For 
the convenience of the user the revised text is set forth as follows:

[[Page 621]]

Sec. 174.680  Division 6.1 (poisonous) materials with foodstuffs.

    (a) A carrier may not transport any package bearing a POISON or 
POISON INHALATION HAZARD label in the same car with any material marked 
as or known to be a foodstuff, feed, or any other edible material 
intended for consumption by humans or animals.

                                * * * * *



  Subpart K--Detailed Requirements for Class 7 (Radioactive) Materials



Sec. 174.700  Special handling requirements for Class 7 (radioactive) materials.

    (a) Each rail shipment of low specific activity materials or surface 
contaminated objects as defined in Sec. 173.403 of this subchapter must 
be loaded so as to avoid spillage and scattering of loose material. 
Loading restrictions are prescribed in Sec. 173.427 of this subchapter.
    (b) The number of packages of Class 7 (radioactive) materials that 
may be transported by rail car or stored at any single location is 
limited to a total transport index number (as defined in Sec. 173.403 of 
this subchapter) of not more than 50. This provision does not apply to 
exclusive use shipments as described in Secs. 173.403, 173.427, 173.441, 
and 173.457 of this subchapter.
    (c) Each package of Class 7 (radioactive) material bearing 
RADIOACTIVE YELLOW-II or RADIOACTIVE YELLOW-III labels may not be placed 
closer than 0.9 meter (3 feet) to an area (or dividing partition between 
areas) which may be continuously occupied by any passenger, rail 
employee, or shipment of one or more animals, nor closer than 4.5 meters 
(15 feet) to any package containing undeveloped film (if so marked). If 
more than one package of Class 7 (radioactive) materials is present, the 
distance must be computed from the table below on the basis of the total 
transport index number (determined by adding together the transport 
index numbers on the labels of the individual packages) of packages in 
the rail car or storage area:

------------------------------------------------------------------------
                                         Minimum        Minimum distance
                                        separation         to area of   
                                       distance to         persons or   
                                         nearest        minimum distance
       Total transport index         undeveloped film    from dividing  
                                   -------------------   partition of a 
                                                        combination car 
                                     Meters     Feet  ------------------
                                                        Meters     Feet 
------------------------------------------------------------------------
None..............................       0          0       0          0
0.1 to 10.0.......................       4.5       15       0.9        3
10.1 to 20.0......................       6.7       22       1.2        4
20.1 to 30.0......................       7.7       29       1.5        5
30.1 to 40.0......................      10         33       1.8        6
40.1 to 50.0......................      10.9       36       2.1        7
------------------------------------------------------------------------
Note: The distance in this table must be measured from the nearest point
  on the nearest packages of Class 7 (radioactive) materials.           

    (d) Each fissile material, controlled shipment must be transported 
in accordance with one of the methods prescribed in Sec. 173.457 of this 
subchapter. The transport controls must be adequate to assure that no 
fissile material, controlled shipment is transported in the same 
transport vehicle with any other fissile Class 7 (radioactive) material 
shipment. In loading and storage areas, each fissile material, 
controlled shipment must be segregated by a distance of at least 6 
meters (20 feet) from other packages required to bear one of the 
``radioactive'' labels described in Part 172 of this subchapter.
    (e) A person shall not remain unnecessarily in, on or near a 
transport vehicle containing Class 7 (radioactive) materials.
    (f) In the case of packages shipped under the exclusive use 
provisions of Sec. 173.441(b) of this subchapter for packages with 
external radiation levels in excess of 2 mSv per hour (200 mrem per 
hour) at the package surface--
    (1) The transport vehicle must meet the requirements for a closed 
transport vehicle (Sec. 173.403 of this subchapter);
    (2) Each package must be secured so that its position within the 
transport vehicle remains fixed under conditions normally incident to 
transportation; and
    (3) The radiation level may not exceed 0.02 mSv per hour (2 mrem per 
hour) in any normally occupied position in the transport vehicle or 
adjacent rail car.
[Amdt. 174-80, 60 FR 50331, Sept. 28, 1995, as amended by Amdt. 174-80, 
61 FR 20753, May 8, 1996]

[[Page 622]]



Sec. 174.715  Cleanliness of transport vehicles after use.

    (a) Each transport vehicle used for transporting Class 7 
(radioactive) materials as exclusive use, as defined in Sec. 173.403 of 
this subchapter, must be surveyed with appropriate radiation detection 
instruments after each use. A transport vehicle may not be returned to 
service until the radiation dose rate at any accessible surface is 0.005 
mSv per hour (0.5 mrem per hour) or less, and there is no significant 
removable radioactive surface contamination, as defined in Sec. 173.443 
of this subchapter.
    (b) This section does not apply to any transport vehicle used solely 
for transporting Class 7 (radioactive) materials if a survey of the 
interior surface shows that the radiation dose rate does not exceed 0.1 
mSv per hour (10 mrem per hour) at the interior surface or 0.02 mSv per 
hour (2 mrem per hour) at 1 meter (3.3 feet) from any interior surface. 
The transport vehicle must be stenciled with the words ``FOR RADIOACTIVE 
MATERIALS USE ONLY'' in lettering at least 7.6 centimeters (3 inches) 
high in a conspicuous place on both sides of the exterior of the 
transport vehicle, and it must be kept closed at all times other than 
during loading and unloading.
[Amdt. 174-80, 60 FR 50332, Sept. 28, 1995]



Sec. 174.750  Incidents involving leakage.

    (a) In addition to the incident reporting requirements of 
Secs. 171.15 and 171.16 of this subchapter, the carrier shall also 
notify the offeror at the earliest practicable moment following any 
incident in which there has been breakage, spillage, or suspected 
radioactive contamination involving Class 7 (radioactive) materials 
shipments. Transport vehicles, buildings, areas, or equipment in which 
Class 7 (radioactive) materials have been spilled may not be again 
placed in service or routinely occupied until the radiation dose rate at 
every accessible surface is less than 0.005 mSv per hour (0.5 mrem per 
hour) and there is no significant removable radioactive surface 
contamination (see Sec. 173.443 of this subchapter).
    (b) The package or materials should be segregated as far as 
practicable from personnel contact. If radiological advice or assistance 
is needed, the U.S. Department of Energy (DOE) should also be notified. 
In case of obvious leakage, or if it appears likely that the inside 
container may have been damaged, care should be taken to avoid 
inhalation, ingestion, or contact with the Class 7 (radioactive) 
material. Any loose Class 7 (radioactive) materials should be left in a 
segregated area and held pending disposal instructions, from qualified 
persons.
[Amdt. 174-26, 41 FR 16092, Apr. 15, 1976, as amended by Amdt. 174-42, 
48 FR 10245, Mar. 10, 1983; Amdt. 174-61, 51 FR 34987, Oct. 1, 1986; 
Amdt. 174-65, 53 FR 38274, Sept. 29, 1988; Amdt. 174-68, 55 FR 52684, 
Dec. 21, 1990; Amdt. 174-80, 60 FR 50332, Sept. 28, 1995]



PART 175--CARRIAGE BY AIRCRAFT--Table of Contents




             Subpart A--General Information and Regulations

Sec.
175.1  Purpose and scope.
175.3  Unacceptable hazardous materials shipments.
175.5  Applicability.
175.10  Exceptions.
175.20  Compliance and training.
175.25  Notification at air passenger facilities of hazardous materials 
          restrictions.
175.26  Notification at cargo facilities of hazardous materials 
          requirements.
175.30  Accepting and inspecting shipments.
175.31  Reports of discrepancies.
175.33  Notification of pilot-in-command.
175.35  Shipping papers aboard aircraft.
175.40  Keeping and replacement of labels.

               Subpart B--Loading, Unloading and Handling

175.75  Quantity limitations aboard aircraft.
175.78  Stowage compatibility of cargo.
175.79  Orientation of cargo.
175.81  Securing of packages containing hazardous materials.
175.85  Cargo location.
175.88  Inspection of unit load devices.
175.90  Damaged shipments.

 Subpart C--Specific Regulations Applicable According to Classification 
                               of Material

175.305  Self-propelled vehicles.
175.310  Transportation of flammable liquid fuel in small, passenger-
          carrying aircraft.
175.320  Cargo aircraft only; only means of transportation.

[[Page 623]]

175.630  Special requirements for Division 6.1 (poisonous) materials and 
          materials in Division 6.2 (etiologic or infectious 
          substances).
175.700  Special limitations and requirements for Class 7 (radioactive) 
          materials.
175.701  Separation distance requirements for packages containing Class 
          7 (radioactive) materials in passenger-carrying aircraft.
175.702  Requirements for carriage of packages containing Class 7 
          (radioactive) materials in a cargo aircraft only.
175.703  Other special requirements for the acceptance and carriage of 
          packages containing Class 7 (radioactive) materials.
175.704  Plutonium shipments.
175.705  Inspection of aircraft for contamination by Class 7 
          (radioactive) materials.

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.

    Source:  Amdt. 175-1, 41 FR 16106, Apr. 15, 1976, unless otherwise 
noted.



             Subpart A--General Information and Regulations



Sec. 175.1  Purpose and scope.

    This part prescribes requirements, in addition to those contained in 
parts 171, 172 and 173 of this subchapter, applicable to aircraft 
operators transporting hazardous materials aboard (including attached to 
or suspended from) aircraft.
[Amdt. 175-15, 45 FR 35332, May 27, 1980]



Sec. 175.3  Unacceptable hazardous materials shipments.

    Hazardous materials that are not prepared for shipment in accordance 
with this subchapter may not be accepted for transportation or 
transported aboard an aircraft.
[Amdt. 175-25, 47 FR 54822, Dec. 6, 1982]



Sec. 175.5  Applicability.

    (a) This part applies to the acceptance for transportation, loading 
and transportation of hazardous materials in any aircraft in the United 
States and in aircraft of United States registry anywhere in air 
commerce. This part does not apply to:
    (1) Aircraft owned and operated by a government when not engaged in 
carrying persons or property for commercial purposes;
    (2) Aircraft which are not owned by a government nor engaged in 
carrying persons or property for commercial purposes but which are under 
the exclusive direction and control of a government for a period of not 
less than 90 days as specified in a written contract or lease. An 
aircraft is under the exclusive direction and control of a government 
when the government exercises responsibility for:
    (i) Approving crew members and determining that they are qualified 
to operate the aircraft;
    (ii) Determining the airworthiness and directing maintenance of the 
aircraft; and
    (iii) Dispatching the aircraft, including the times of departure, 
airports to be used, and type and amount of cargo to be carried;
    (3) Aircraft of United States registry under lease to and operated 
by foreign nationals outside the United States if:
    (i) Hazardous materials forbidden aboard aircraft by Sec. 172.101 of 
this subchapter are not carried on the aircraft; and
    (ii) Other hazardous materials are carried in accordance with the 
regulations of the State (nation) of the aircraft operator.
[Amdt. 175-15, 45 FR 35332, May 27, 1980]



Sec. 175.10  Exceptions.

    (a) This subchapter does not apply to:
    (1) Aviation fuel and oil in tanks that are in compliance with the 
installation provisions of 14 CFR, chapter 1.
    (2) Hazardous materials required aboard an aircraft in accordance 
with the applicable airworthiness requirements and operating 
regulations. Unless otherwise approved by the Associate Administrator 
for Hazardous Materials Safety, items of replacement for such hazardous 
materials must be transported in accordance with this subchapter except 
that--
    (i) In place of the required packagings, packagings specially 
designed for the transport of aircraft spares and supplies may be used, 
provided such packagings provide at least an equivalent level of 
protection to those that would be required by this subchapter;
    (ii) Aircraft batteries are not subject to quantity limitations such 
as those provided in Sec. 172.101 or Sec. 175.75(a) of this subchapter; 
and,

[[Page 624]]

    (iii) A tire assembly with a serviceable tire is not subject to the 
provisions of this subchapter provided the tire is not inflated to a 
gauge pressure exceeding the maximum rated pressure for that tire.
    (3) Hazardous materials loaded and carried in hoppers or tanks of 
aircraft certificated for use in aerial seeding, dusting, spraying, 
fertilizing, crop improvement, or pest control, to be dispensed during 
such an operation.
    (4) Non-radioactive medicinal and toilet articles (including 
aerosols) carried by a crew member or passenger in checked or carry-on 
baggage. Also aerosols in Division 2.2, with no subsidiary risk, for 
sporting or home use, when carried in checked baggage only, when:
    (i) The total capacity of all the containers used by a crewmember or 
passenger does not exceed 2 kg (70 net weight ounces) or 2 liters (68 
fluid ounces);
    (ii) The capacity of each container other than an aerosol container 
does not exceed 470 ml (16 fluid ounces) or 0.5 kg (1.1 pound) of 
material.
    (5) Small-arms ammunition for personal use carried by a crewmember 
or passenger in his baggage (excluding carry-on baggage) if securely 
packed in fiber, wood or metal boxes, or other packagings specifically 
designed to carry small amounts of ammunition. This paragraph does not 
apply to persons traveling under the provisions of 14 CFR 108.11 (a) and 
(b).
    (6) [Reserved]
    (7) Oxygen, or any hazardous material used for the generation of 
oxygen, for medical use by a passenger, which is furnished by the 
aircraft operator in accordance with 14 CFR 121.574 or 135.91. For 
purposes of this paragraph, an aircraft operator that is not a 
certificate holder under 14 CFR part 121 or part 135, may apply this 
exception in conformance with 14 CFR 121.574 or 135.91 in the same 
manner as required for a certificate holder.
    (8) Human beings and animals with an implanted medical device, such 
as a heart pacemaker, that contains Class 7 (radioactive) materials or 
with radio-pharmaceuticals that have been injected or ingested.
    (9) Smoke grenades, flares, or similar devices carried only for use 
during a sport parachute jumping activity.
    (10) Personal smoking materials intended for use by any individual 
when carried on his person except lighters with flammable liquid 
reservoirs and containers containing lighter fluid for use in refilling 
lighters.
    (11) Smoke grenades, flares, and pyrotechnic devices affixed to 
aircraft carrying no person other than a required flight crewmember 
during any flight conducted at and as a part of a scheduled air show or 
exhibition of aeronautical skill. The affixed installation accommodating 
the smoke grenades, flares, or pyrotechnic devices on the aircraft must 
be approved by the FAA for its intended use.
    (12) Hazardous materials which are loaded and carried on or in cargo 
aircraft only, and which are to be dispensed or expended during flight 
for weather control, enviromental restoration or protection, forest 
preservation and protection, flood control, avalanche control purposes, 
or routine quality control testing of special fireworks manufactured for 
the Department of Defense, when the following requirements are met:
    (i) Operations may not be conducted over densely populated areas, in 
a congested airway, or near any airport where air carrier passenger 
operations are conducted.
    (ii) Each operator shall prepare and keep current a manual 
containing operational guidelines and handling procedures, for the use 
and guidance of flight, maintenance, and ground personnel concerned in 
the dispensing or expending of hazardous materials. The manual must be 
approved by the FAA Civil Aviation Security Office responsible for the 
operator's overall aviation security program or the FAA Civil Aviation 
Security Office in the region where the operator is located. The manual 
must be approved by the FAA Civil Aviation Security Field Office 
responsible for reviewing the operator's hazardous materials program or 
the FAA Civil Aviation Security Field Office in the region where the 
operator is located. Each operation must be conducted in accordance with 
the manual.

[[Page 625]]

    (iii) No person other than a required flight crewmember, FAA 
inspector, or person necessary for handling or dispensing the hazardous 
material may be carried on the aircraft.
    (iv) The operator of the aircraft must have advance permission from 
the owner of any airport to be used for the dispensing or expending 
operation.
    (v) When dynamite and blasting caps are carried for avalanche 
control flights, the explosives must be handled by, and at all times be 
under the control of, a qualified blaster. When required by State or 
local authority, the blaster must be licensed and the State or local 
authority must be identified in writing to the FAA Civil Aviation 
Security Field Office responsible for reviewing the operator's hazardous 
materials program or the FAA Civil Aviation Security Field Office in the 
region where the operator is located.
    (vi) When special fireworks aerial illuminating flares, manufactured 
specifically for the DOD, are carried for in-flight routine quality 
control testing, the fireworks must be handled by, and at all times be 
under the control of, a qualified person who has been trained in 
accordance with a program approved by the local FAA Civil Aviation 
Security Field Office. The aircraft must be specially modified to 
conduct the testing operation and must be specifically approved for such 
operations by the local FAA Civil Aviation Security Field Office before 
the flight.
    (13) Carbon dioxide, solid (dry ice) when:
    (i) In quantities not exceeding 2.3 kg (5.07 pounds) per package 
packed as prescribed by Sec. 173.217 of this subchapter and used as a 
refrigerant for the contents of the package. The package must be marked 
with the name of the contents being cooled, the net weight of the dry 
ice or an indication that the net weight is 2.3 kg (5.07 pounds) or 
less, and also marked ``Carbon Dioxide, Solid'' or ``Dry Ice'';
    (ii) Intended for use in food and beverage service aboard aircraft; 
or
    (iii) In quantities not exceeding 2 kg (4.4 pounds) per passenger 
when used to pack perishables in carry-on baggage provided the package 
permits the release of carbon dioxide gas.
    (14) A transport incubator unit necessary to protect life or an 
organ preservation unit necessary to protect human organs provided:
    (i) The compressed gas used to operate the unit is in an authorized 
DOT specification cylinder and is marked, labeled, filled and maintained 
as prescribed by this subchapter;
    (ii) Each battery used in the operation of the unit is of the 
nonspillable type;
    (iii) The unit is constructed so that valves, fittings, and gauges 
are protected from damage;
    (iv) The pilot in command is advised when the unit is on board, and 
when it is intended for use;
    (v) The unit is accompanied by a person qualified to operate it;
    (vi) The unit is secured in the aircraft in a manner so as not to 
restrict access to or use of any required emergency or regular exit or 
of the aisle in the passenger compartment; and,
    (vii) Smoking within 3 m (10 feet) of the unit is prohibited.
    (15) Alcoholic beverages, perfumes, colognes, and liquefied gas 
lighters that have been examined by the Bureau of Explosives (B of E) 
and approved by the Associate Administrator for Hazardous Materials 
Safety, carried aboard a passenger-carrying aircraft by the operator for 
use or sale on the aircraft.
    (16) Alcoholic beverages not exceeding 70% alcohol by volume, 
perfumes and colognes, purchased through duty free sales, carried by 
passengers or crew as carry-on baggage.
    (17) [Reserved]
    (18) Carbon dioxide gas cylinders worn by passengers for the 
operation of mechanical limbs and spare cylinders of a similar size for 
the same purpose in sufficient quantities to ensure an adequate supply 
for the duration of the journey.
    (19) A wheelchair or other battery-powered mobility aid equipped 
with a nonspillable battery, when carried as checked baggage, provided 
that--
    (i) The battery meets the provisions of Sec. 173.159(d) for 
nonspillable batteries;
    (ii) Visual inspection including, where necessary, removal of the 
battery, reveals no obvious defects (however, removal of the battery 
from the

[[Page 626]]

housing should be performed by qualified airline personnel only);
    (iii) The battery is disconnected and terminals are insulated to 
prevent short circuits; and
    (iv) The battery is securely attached to the wheelchair or mobility 
aid, is removed and placed in a strong, rigid packaging that is marked 
``NONSPILLABLE BATTERY'' (unless fully enclosed in a rigid housing that 
is properly marked), or is handled in accordance with paragraph 
(a)(20)(iv) of this section.
    (20) A wheelchair or other battery-powered mobility aid equipped 
with a spillable battery, when carried as checked baggage, provided 
that--
    (i) Visual inspection including, where necessary, removal of the 
battery, reveals no obvious defects (however, removal of the battery 
from the housing should be performed by qualified airline personnel 
only);
    (ii) The battery is disconnected and terminals are insulated to 
prevent short circuits;
    (iii) The pilot-in-command is advised, either orally or in writing, 
prior to departure, as to the location of the battery aboard the 
aircraft; and
    (iv) The wheelchair or mobility aid is loaded, stowed, secured and 
unloaded in an upright position or the battery is removed, the 
wheelchair or mobility aid is carried as checked baggage without further 
restriction, and the removed battery is carried in a strong, rigid 
packaging under the following conditions:
    (A) The packaging must be leak-tight and impervious to battery 
fluid. An inner liner may be used to satisfy this requirement if there 
is absorbent material placed inside of the liner and the liner has a 
leakproof closure;
    (B) The battery must be protected against short circuits, secured 
upright in the packaging, and be packaged with enough compatible 
absorbent material to completely absorb liquid contents in the event of 
rupture of the battery; and
    (C) The packaging must be labeled with a CORROSIVE label, marked to 
indicate proper orientation, and marked with the words ``Battery, wet, 
with wheelchair.''
    (21) Hair curlers containing hydrocarbon gas, no more than one per 
passenger or crew member, provided that the safety cover is securely 
fitted over the heating element. Gas refills for such curlers are not 
permitted in checked or carry-on baggage.
    (22) A mercurial barometer or thermometer carried as carry-on-
baggage only, by a representative of a government weather bureau or 
similar official agency, provided that individual advises the operator 
of the presence of the barometer or thermometer in his baggage. The 
barometer or thermometer must be packaged in a strong outer packaging 
having sealed inner liner or bag of strong, leak proof and puncture-
resistant material impervious to mercury, which will prevent the escape 
of mercury from the package irrespective of its position. The pilot-in-
command must be informed of the presence of any such barometer or 
thermometer by the operator of the aircraft.
    (23) With the approval of the operator of the aircraft and as carry-
on baggage, electrically powered heat-producing articles (e.g., battery-
operated equipment, such as underwater torches and soldering equipment), 
which, if accidentally activated, will generate extreme heat and can 
cause fire. The heat-producing component, or the energy source, must be 
removed so as to prevent unintentional functioning during transport.
    (24) With the approval of the operator and as checked baggage, a 
small chemical oxygen generator for personal use, one per person, that 
meets the following requirements:
    (i) The generator, without its packaging, must be capable of 
withstanding a 1.8 m (5.9 feet) drop test onto a rigid, non-resilient, 
flat and horizontal surface, in the position most likely to cause 
damage, without loss of its contents and without actuation;
    (ii) The generator must be equipped with an actuating device with at 
least two positive means of preventing unintentional actuation;
    (iii) The generator must be well insulated and, when it is actuated 
at a temperature of 20  deg.C (68  deg.F), the temperature of any 
external surface of the generator must not exceed 100  deg.C (212 
deg.F);
    (iv) The generator must be in the manufacturer's original packaging 
and

[[Page 627]]

this must include a sealed outer wrapping or clear evidence that the 
generator has not been tampered with; and
    (v) The generator packaging must be marked to indicate that the 
package meets the requirements of this paragraph (e.g., conforms with 49 
CFR 175.10(a)(24)).
    (25) With approval of the aircraft operator, one small carbon 
dioxide cylinder fitted into a self-inflating life-jacket, plus one 
spare cartridge, may be carried by a passenger or crew member in checked 
or carry-on baggage.
    (26) A small medical or clinical mercury thermometer for personal 
use, when carried in protective cases by passengers or crew members.
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 175.10, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 175.20  Compliance and training.

    (a) Unless this subchapter specifically provides that another person 
shall perform a particular duty, each operator shall comply with all 
applicable requirements in parts 106, 171, 172, and 175 of this chapter 
and shall ensure each of its hazmat employees receive training in 
relation thereto. (See also 14 CFR 121.135, 121.401, 121.433a, 135.323, 
135.327 and 135.333.)
    (b) A carrier may not transport a hazardous material by aircraft 
unless each of its hazmat employees involved in that transportation is 
trained as required by subpart H of part 172 of this subchapter.
[Amdt. 175-48, 57 FR 20953, May 15, 1992]



Sec. 175.25  Notification at air passenger facilities of hazardous materials restrictions.

    (a) Each aircraft operator who engages in for-hire transportation of 
passengers shall display notices of the requirements applicable to the 
carriage of hazardous materials aboard aircraft, and the penalties for 
failure to comply with those requirements. Each notice must be legible, 
and be prominently displayed so that it can be seen by passengers in 
locations where the aircraft operator issues tickets, checks baggage, 
and maintains aircraft boarding areas.
    (1) Each notice must contain the following information:

    Federal law forbids the carriage of hazardous materials aboard 
aircraft in your luggage or on your person.
    A violation can result in penalties of up to $25,000 and 5 years 
imprisonment. (49 U.S.C. 1809)
    Hazardous materials include explosives, compressed gases, flammable 
liquids and solids, oxidizers, poisons, corrosives and radioactive 
materials.
    Examples: Paints, lighter fluid, fireworks, tear gases, oxygen 
bottles, and radio-pharmaceuticals.
    There are special exceptions for small quantities (up to 75 ounces 
total) of medicinal and toilet articles carried in your luggage and 
certain smoking materials carried on your person.
    For further information contact your airline representative.

    (2) The information contained in paragraph (a)(1) of this section 
must be printed:
    (i) In legible Engish;
    (ii) In lettering of at least 1 cm (0.4 inch) in height for the 
first three paragraphs and 6.0 mm (0.2 inch) in height for the last 
three paragraphs; and
    (iii) On a background of contrasting color.
    (3) Size and color of the notice are optional. Additional 
information, if not inconsistent with required information, may be 
included.
    (b) [Reserved]
[Amdt. 175-12, 45 FR 13091, Feb. 28, 1980, as amended by 175-23, 47 FR 
43066, Sept. 30, 1982; Amdt. 175-47, 55 FR 52685, Dec. 21, 1990; Amdt. 
175-50, 58 FR 50505, Sept. 27, 1993]



Sec. 175.26  Notification at cargo facilities of hazardous materials requirements.

    (a) After September 30, 1994, each person who engages in the 
acceptance or transport of cargo for transportation by aircraft shall 
display notices, at each facility where cargo is accepted, to persons 
offering such cargo of the requirements applicable to the carriage of 
hazardous materials aboard aircraft, and the penalties for failure to 
comply with those requirements. Each notice must be legible, and be 
prominently displayed so that it can be seen. At a minimum, each notice 
must communicate the following information:

[[Page 628]]

    (1) Cargo containing hazardous materials (dangerous goods) for 
transportation by aircraft must be offered in accordance with the 
Federal Hazardous Materials Regulations (49 CFR parts 171-180).
    (2) A violation can result in civil penalties of up to $25,000 and 
criminal penalties of up to $500,000 and 5 years imprisonment.
    (3) Hazardous materials (dangerous goods) include explosives, 
compressed gases, flammable liquids and solids, oxidizers, poisons, 
corrosives and radioactive materials.
    (b) The information contained in paragraph (a) of this section must 
be printed:
    (1) Legibly in English, and, where cargo is accepted outside of the 
United States, in the language of the host country; and
    (2) On a background of contrasting color.
    (c) Size and color of the notice are optional. Additional 
information, examples, or illustrations, if not inconsistent with 
required information, may be included.
    (d) Exceptions: Display of a notice required by paragraph (a) of 
this section is not required at:
    (1) An unattended location (e.g., a drop box) provided a general 
notice advising customers of a prohibition on shipments of hazardous 
materials through that location is prominently displayed; or
    (2) A customer's facility where hazardous materials packages are 
accepted by a carrier.
][Amdt. 175-50, 58 FR 50505, Sept. 27, 1993]



Sec. 175.30  Accepting and inspecting shipments.

    (a) No person may accept a hazardous material for transportation 
aboard an aircraft unless the hazardous material is:
    (1) Authorized, and is within the quantity limitations specified for 
carriage aboard aircraft according to Sec. 172.101 of this subchapter or 
as otherwise specifically provided by this subchapter.
    (2) Described and certified on a shipping paper prepared in 
duplicate in accordance with subpart C of part 172 or as authorized by 
Sec. 171.11 of this subchapter. The originating aircraft operator must 
retain one copy of each shipping paper for 90 days;
    (3) Labeled and marked in accordance with subparts D and E of part 
172 or as authorized in Sec. 171.11 of this subchapter, and placarded 
(when required) in accordance with subpart F of part 172 of this 
subchapter; and,
    (4) Labeled with a ``CARGO AIRCRAFT ONLY'' label (see Sec. 172.448 
of this subchapter) if the material as presented is not permitted aboard 
passenger-carrying aircraft.
    (b) Except as provided in paragraph (d) of this section, no person 
may carry a hazardous material in a package, outside container, or 
overpack aboard an aircraft unless the package, outside container, or 
overpack is inspected by the operator of the aircraft immediately before 
placing it:
    (1) Aboard the aircraft; or,
    (2) In a unit load device or on a pallet prior to loading aboard the 
aircraft.
    (c) A hazardous material may only be carried aboard an aircraft if, 
based on the inspection prescribed in paragraph (b) of this section, the 
operator determines that the package, outside container, or overpack 
containing the hazardous material:
    (1) Has no holes, leakage or other indication that its integrity has 
been compromised; and
    (2) For Class 7 (radioactive) materials, does not have a broken 
seal, except that packages contained in overpacks need not be inspected 
for seal integrity.
    (d) The requirements of paragraphs (b) and (c) of this section do 
not apply to:
    (1) An ORM-D material packed in a freight container and offered for 
transportation by one consignor;
    (2) Dry ice (carbon dioxide, solid); or
    (e) An overpack containing packages of hazardous materials may be 
accepted only if the operator has taken all reasonable steps to 
establish that:
    (1) The overpack does not contain a package bearing the ``CARGO 
AIRCRAFT ONLY'' label unless--
    (i) The overpack affords clear visibility of and easy access to the 
package; or

[[Page 629]]

    (ii) The package contains a material which may be carried 
inaccessibly under the provisions of Sec. 175.85(c)(1); or
    (iii) Not more than one package is overpacked.
    (2) The proper shipping names, identification numbers, labels and 
special handling instructions appearing on the inside packages are 
clearly visible or reproduced on the outside of the overpack, and
    (3) Has determined that a statement to the effect that the inside 
packages comply with the prescribed specifications appears on the 
outside of the overpack, when specification packagings are prescribed.
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976, as amended by Amdt. 175-12, 45 
FR 13091, Feb. 28, 1980; Amdt. 175-17, 45 FR 68654, Oct. 11, 1980; Amdt. 
175-25, 47 FR 54822, Dec. 6, 1982; Amdt. 175-34, 50 FR 48420, Nov. 25, 
1985; Amdt. 175-37, 51 FR 5974, Feb. 18, 1986; Amdt. 175-39, 51 FR 
44791, Dec. 12, 1986; Amdt. 175-47, 55 FR 52685, Dec. 21, 1990]



Sec. 175.31  Reports of discrepancies.

    (a) Each person who discovers a discrepancy, as defined in paragraph 
(b) of this section, relative to the shipment of a hazardous material 
following its acceptance for transportation aboard an aircraft shall, as 
soon as practicable, notify the nearest FAA Civil Aviation Security 
Office by telephone and shall provide the following information:
    (1) Name and telephone number of the person reporting the 
discrepancy.
    (2) Name of the aircraft operator.
    (3) Specific location of the shipment concerned.
    (4) Name of the shipper.
    (5) Nature of discrepancy.
    (b) Discrepancies which must be reported under paragraph (a) of this 
section are those involving hazardous materials which are improperly 
described, certified, labeled, marked, or packaged, in a manner not 
ascertainable when accepted under the provisions of Sec. 175.30(a) of 
this subchapter, including:
    (1) Package which are found to contain hazardous materials:
    (i) Other than as described or certified on shipping papers;
    (ii) In quantities exceeding authorized limits;
    (iii) In inside containers which are not authorized or have improper 
closures;
    (iv) In inside containers not oriented as shown by package markings;
    (v) With insufficient or improper absorption materials, when 
required; or
    (2) Packages or baggage which are found to contain hazardous 
materials subsequent to their being offered and accepted as other than 
hazardous materials.
[Amdt. 175-15, 45 FR 35332, May 27, 1980, as amended by Amdt. 175-41, 52 
FR 36672, Sept. 30, 1987]



Sec. 175.33  Notification of pilot-in-command.

    (a) Except as provided in Sec. 175.10, when a hazardous material 
subject to the provisions of this subchapter is carried in an aircraft, 
the operator of the aircraft shall provide the pilot-in-command at least 
the following information in writing as early as practicable prior to 
departure:
    (1) The proper shipping name, hazard class and identification number 
of the material as specified in Sec. 172.101 of this subchapter or the 
ICAO Technical Instructions. In the case of Class 1 material, the 
compatibility group letter also must be shown. If a hazardous material 
is described by the proper shipping name, hazard class, and 
identification number appearing in:
    (i) Section 172.101 of this subchapter, any additional description 
requirements provided in Secs. 172.202 and 172.203 of this subchapter 
must also be shown in the notification.
    (ii) The ICAO Technical Instructions, any additional information 
required to be shown on shipping papers by Sec. 171.11 of this 
subchapter must also be shown in the notification.
    (2) The total number of packages;
    (3) The net quantity or gross weight, as applicable, for each 
package except those containing Class 7 (radioactive) materials and 
those for which there is no limit imposed on the maximum net quantity 
per package;
    (4) The location of the packages aboard the aircraft;
    (5) Confirmation that no damaged or leaking packages have been 
loaded on the aircraft;

[[Page 630]]

    (6) For Class 7 (radioactive) materials, the number of packages, 
overpacks or freight containers their category, transport index (if 
applicable), and their location aboard the aircraft;
    (7) Confirmation that the package must be carried on cargo aircraft 
only if its transportation aboard passenger-carrying aircraft is 
forbidden; and
    (8) An indication, when applicable, that a hazardous material is 
being carried under terms of an exemption.
    (b) A copy of the written notification to pilot-in-command shall be 
readily available to the pilot-in-command during flight. Emergency 
response information required by subpart G of part 172 of this 
subchapter must be maintained in the same manner as the written 
notification to pilot-in-command during transport of the hazardous 
material aboard the aircraft.
[Amdt. 175-25, 47 FR 54823, Dec. 6, 1982, as amended by Amdt. 175-30, 48 
FR 53713, Nov. 29, 1983; Amdt. 175-32, 49 FR 45750, Nov. 20, 1984; Amdt. 
175-35, 50 FR 49394, Dec. 2, 1985; Amdt. 175-45, 55 FR 875, Jan. 10, 
1990; Amdt. 175-47, 55 FR 52685, Dec. 21, 1990; Amdt. 175-52, 59 FR 
67518, Dec. 29, 1994]



Sec. 175.35  Shipping papers aboard aircraft.

    (a) A copy of the shipping papers required by Sec. 175.30(a)(2) must 
accompany the shipment it covers during transportation aboard an 
aircraft.
    (b) The documents required by paragraph (a) of this section and 
Sec. 175.33 may be combined into one document if it is given to the 
pilot-in-command before departure of the aircraft.



Sec. 175.40  Keeping and replacement of labels.

    (a) Aircraft operators who engage in the transportation of hazardous 
materials must keep an adequate supply of the labels specified in 
subpart E of part 172 of this subchapter, on hand at each location where 
shipments are loaded aboard aircraft.
    (b) Lost or detached labels for packages of hazardous materials must 
be replaced in accordance with the information provided on the shipping 
papers.



               Subpart B--Loading, Unloading and Handling



Sec. 175.75  Quantity limitations aboard aircraft.

    (a) Except as provided in Sec. 175.85(c)(3), no person may carry on 
an aircraft:
    (1) A hazardous material except as permitted by this subchapter:
    (2) More than 25 kg (55 pounds) net weight of hazardous material 
(and in addition thereto, 75 kg (165 pounds) net weight of Division 2.2 
(non-flammable compressed gas) materials permitted to be carried aboard 
passenger-carrying aircraft:
    (i) In an inaccessible cargo compartment,
    (ii) In any freight container within an accessible cargo 
compartment, or
    (iii) In any accessible cargo compartment in a cargo aircraft only 
in a manner that makes it inaccessible unless in a freight container;
    (3) Packages containing Class 7 (radioactive) materials when their 
combined transport index number (determined by adding together the 
transport index numbers shown on the labels of the individual packages 
and/or overpacks):
    (i) In passenger carrying aircraft, exceeds 50.0 or, for any single 
package, exceeds 3.0, or
    (ii) In cargo aircraft only, exceeds 200.00 (for fissile Class 7 
(radioactive) materials, see Sec. 175.702(b)(2)(iv)) or, for any single 
package, exceeds 10.0.
    (b) No limitation applies to the number of packages of Class 9 
(miscellaneous hazardous) materials, or ORM-D materials aboard an 
aircraft.
[Amdt. 175-1A, 41 FR 40686, Sept. 20, 1976, as amended by Amdt. 175-13, 
45 FR 20101, Mar. 27, 1980; Amdt. 175-25, 47 FR 54823, Dec. 6, 1982; 
Amdt. 175-29, 48 FR 50461, Nov. 1, 1983; Amdt. 175-47, 55 FR 52685, Dec. 
21, 1990]



Sec. 175.78  Stowage compatibility of cargo.

    (a) For stowage on an aircraft, in a cargo facility, or at any other 
area at an airport designated for the stowage of hazardous materials, 
packages containing hazardous materials which might react dangerously 
with one another may not be placed next to each other or in a position 
that would allow a dangerous interaction in the event of

[[Page 631]]

leakage. As a minimum, the segregation prescribed in the following Table 
must be maintained.

[[Page 632]]



                                                     Table 1                                                    
----------------------------------------------------------------------------------------------------------------
                               A             B             C            D            E            F          G  
----------------------------------------------------------------------------------------------------------------
A....  Explosives and    Note 3......  Note 4......  Note 4......  Note 4.....  Note 4.....  Note 4.....  X     
        Blasting Agents                                                                                         
        or ICAO Class 1.                                                                                        
B....  Compressed gases  Note 4......  ............  ............  ...........  ...........  ...........  ......
        or ICAO Class 2.                                                                                        
C....  Flammable         Note 4......  ............  ............  ...........  ...........  X..........  ......
        liquids or ICAO                                                                                         
        Class 3.                                                                                                
D....  Flammable         Note 4......  ............  ............  ...........  ...........  X..........  X     
        liquids and                                                                                             
        solids (labeled                                                                                         
        SPONTANEOUSLY                                                                                           
        COMBUSTIBLE) or                                                                                         
        ICAO Division                                                                                           
        4.2.                                                                                                    
E....  Flammable solids  Note 4......  ............  ............  ...........  ...........  X..........  X     
        (labeled                                                                                                
        DANGEROUS WHEN                                                                                          
        WET) or ICAO                                                                                            
        Division 4.3.                                                                                           
F....  Oxidizers or      Note 4......  ............  X...........  X..........  X..........  ...........  X     
        ICAO Division                                                                                           
        5.1 and Organic                                                                                         
        peroxides or                                                                                            
        ICAO Division                                                                                           
        5.2.                                                                                                    
G....  Corrosive         X...........  ............  ............  X..........  X..........  X..........  ......
        materials or                                                                                            
        ICAO Class 8.                                                                                           
----------------------------------------------------------------------------------------------------------------
Note 1: The letters across the top of the Table have the same meaning as the letters along the left side of the 
  Table.                                                                                                        
Note 2: An ``X'' at the intersection of a row and a column in the Table means that packages containing the      
  indicated classes of hazardous materials may not be stowed next to or in contact with each other, or in a     
  position which would allow interaction in the event of leakage of the contents.                               
Note 3: For import or export shipment, explosives other than explosives of ICAO Division 1.4, Compatibility     
  Group S, that do not belong to the same compatibility group according to the ICAO Technical Instructions may  
  not be stowed together, except that compatibility groups C, D and E may be stowed together. Explosives of ICAO
  Division 1.4, Compatibility Group S may be stowed with explosives of all compatibility groups with the        
  exception of A and L.                                                                                         
Note 4: Explosives, other than safety explosives (ICAO Division 1.4, Compatibility Group S) must not be stowed  
  together with this class.                                                                                     

[[Page 633]]

                                                                                                                

    (b) No person may stow a package labeled BLASTING AGENT on an 
aircraft next to, or in a position that will allow contact with a 
package of special fireworks or railway torpedoes.
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976, as amended by Amdt. 175-8, 44 
FR 31184, May 31, 1979; Amdt. 175-22, 47 FR 24587, June 7, 1982; Amdt. 
175-25, 47 FR 54823, Dec. 6, 1982; Amdt. 175-30, 48 FR 53713, Nov. 29, 
1983; Amdt. 175-50, 58 FR 50505, Sept. 27, 1993]



Sec. 175.79  Orientation of cargo.

    (a) A package containing hazardous materials marked ``THIS SIDE UP'' 
or ``THIS END UP'', or with arrows to indicate the proper orientation of 
the package, must be stored and loaded aboard an aircraft in accordance 
with such markings.
    (b) A package containing liquid hazardous materials not marked as 
indicated in paragraph (a) of this section, must be stored and loaded 
with closures up (other than side closures in addition to top closures).
[Amdt. 175-25, 47 FR 54823, Dec. 6, 1982]



Sec. 175.81  Securing of packages containing hazardous materials.

    (a) Packages containing hazardous materials must be secured in an 
aircraft in a manner that will prevent any movement in flight which 
would result in damage to or change in the orientation of the packages.
    (b) Packages containing Class 7 (radioactive) materials must be 
secured in a manner that insures that the separation requirements of 
Secs. 175.701 and 175.702 will be maintained at all times during flight.
[Amdt. 175-25, 47 FR 54823, Dec. 6, 1982, as amended by Amdt. 175-47, 55 
FR 52685, Dec. 21, 1990]



Sec. 175.85  Cargo location.

    (a) Except as provided in Sec. 175.10, no person may carry a 
hazardous material subject to the requirements of this subchapter in the 
cabin of a passenger-carrying aircraft or on the flight deck of any 
aircraft. Hazardous materials may be carried in a main deck cargo 
compartment of a passenger-aircraft provided that the compartment is 
inaccessible to passengers and that it meets all certification 
requirements for a Class B aircraft cargo compartment as provided in 14 
CFR 25.857(b).
    (b) Each package containing a hazardous material acceptable only for 
cargo aircraft must be loaded in such a manner that a crew member or 
other authorized person can see, handle and when size and weight permit, 
separate such packages from other cargo during flight.
    (c) Notwithstanding the provisions of paragraph (b) of this section:
    (1) When packages of the following hazardous materials are carried 
on cargo aircraft only, they may be carried in a location which is 
inaccessible to a crewmember during flight and are not subject to the 
weight limitation specified in paragraph (a)(2) of Sec. 175.75 of this 
subchapter.
    (i) Class 7 (radioactive) materials,
    (ii) Division 6.1 (poisonous) materials (except those labeled 
FLAMMABLE),
    (iii) Materials in Division 6.2 (etiologic or infectious 
substances),
    (iv) Class 3 (flammable liquid) materials with a flashpoint above 23 
 deg.C (73  deg.F) that do not meet the definition of another hazardous 
class,
    (v) Class 9 (miscellaneous hazardous) materials, and ORM-D 
materials.
    (2) When packages of hazardous materials acceptable for cargo-only 
or passenger-carrying aircraft are carried on cargo aircraft only where 
other means of transportation are impracticable or not available, 
packages may be carried in accordance with procedures approved in 
writing by the FAA Air Transportation Security Field Office responsible 
for the operator's overall aviation security program or the FAA Air 
Transportation Security Division in the region where the operator is 
located.
    (3) When packages of hazardous materials acceptable for cargo-only 
or passenger-carrying aircraft are carried on small, single pilot, cargo 
aircraft only being used where other means of transportation are 
impracticable or not available, they may be carried without quantity 
limitation as specified in Sec. 175.75 in a location that is not 
accessible to the pilot if:

[[Page 634]]

    (i) No person other than the pilot, an FAA inspector, the shipper or 
consignee of the material or a representative of the shipper or 
consignee so designated in writing, or a person necessary for handling 
the material is carried on the aircraft;
    (ii) The pilot is provided with written instructions on 
characteristics and proper handling of the materials; and
    (iii) Whenever a change of pilots occurs while the material is on 
board, the new pilot is briefed under a hand-to-hand signature service 
provided by the operator of the aircraft.
    (d) [Reserved]
    (e) No person may carry a material subject to the requirements of 
this subchapter that is acceptable for carriage in a passenger-carrying 
aircraft (other than magnetized materials) unless it is located in the 
aircraft in a place that is inaccessible to persons other than crew-
members.
    (f) Paragraphs (a) and (e) of this section do not apply to a person 
operating an aircraft under Sec. 175.310 which, because of its size and 
configuration, makes it impossible for that person to comply.
    (g) No person may load magnetized material (which might cause an 
erroneous magnetic compass reading) on an aircraft, in the vicinity of a 
magnetic compass, or compass master unit, that is a part of the 
instrument equipment of the aircraft, in a manner that affects its 
operation. If this requirement cannot be met, a special aircraft swing 
and compass calibration may be made.
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 175.85, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 175.88  Inspection of unit load devices.

    A unit load device may not be loaded on an aircraft unless the 
device has been inspected and found to be free from any evidence of 
leakage from, or damage to, any package containing hazardous materials.
[Amdt. 175-25, 47 FR 54824, Dec. 6, 1982]



Sec. 175.90  Damaged shipments.

    (a) Packages or overpacks containing hazardous materials must be 
inspected for damage or leakage after being unloaded from an aircraft. 
When packages or overpacks containing hazardous materials are carried in 
a unit load device, the area where the unit load device was stowed must 
be inspected for evidence of leakage or contamination immediately upon 
removal of the unit load device from the aircraft, and the packages or 
overpacks inspected for evidence of damage or leakage when the unit load 
device is unloaded. In the event of leakage or suspected leakage, the 
compartment in which the package, overpack, or unit load device was 
carried must be inspected for contamination and any dangerous level of 
contamination removed.
    (b) Except as provided for in Sec. 175.700, the operator of an 
aircraft shall remove from the aircraft any package subject to this 
subchapter that appears to be damaged or leaking. In the case of a 
package which appears to be leaking, the operator must insure that the 
remainder of the packages in the same shipment are in proper condition 
for transport aboard the aircraft and that no other package has been 
contaminated.
    (c) No person shall place a package that is damaged or appears to be 
damaged or leaking aboard an aircraft subject to this part.
    (d) If a package containing a material in Division 6.2 (etiologic or 
infectious substance) is found to be damaged or leaking, the person 
finding the package shall:
    (1) Avoid handling the package or keep handling to a minimum;
    (2) Inspect packages adjacent to the leaking package for 
contamination and withhold from further transportation any contaminated 
packages until it is ascertained that they can be safety transported;
    (3) Comply with the reporting requirement of Sec. 171.15 of this 
subchapter; and
    (4) Notify the consignor or consignee.
[Amdt. 175-25, 47 FR 54824, Dec. 6, 1982, as amended by Amdt. 175-47, 55 
FR 52685, Dec. 21, 1990]

[[Page 635]]



 Subpart C--Specific Regulations Applicable According to Classification 
                               of Material



Sec. 175.305  Self-propelled vehicles.

    (a) Self-propelled vehicles are exempt from the drainage 
requirements of Sec. 173.220 of this subchapter when carried in aircraft 
designed or modified for vehicle ferry operations and when all of the 
following conditions are met:
    (1) Authorization for this type operation has been given by the 
appropriate authority in the government of the country in which the 
aircraft is registered;
    (2) Each vehicle is secured in an upright position;
    (3) Each fuel tank is filled in a manner and only to a degree that 
will preclude spillage of fuel during loading, unloading, and 
transportation; and
    (4) Each area or compartment in which a self-propelled vehicle is 
being transported is suitably ventilated to prevent the accumulation of 
fuel vapors.
    (b)  [Reserved]
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976, as amended by Amdt. 175-12, 45 
FR 13091, Feb. 28, 1980; Amdt. 175-25, 47 FR 54824, Dec. 6, 1982; Amdt. 
175-47, 55 FR 52685, Dec. 21, 1990]



Sec. 175.310  Transportation of flammable liquid fuel in small, passenger-carrying aircraft.

    A small aircraft or helicopter operated entirely within the State of 
Alaska or into a remote area elsewhere in the United States may carry, 
in other than scheduled passenger operations, not more than 76 liters 
(20 gallons) of flammable liquid fuel, if:
    (a) Transportation by air is the only practical means of providing 
suitable fuel;
    (b) The flight is necessary to meet the needs of a passenger;
    (c) The fuel is carried in metal containers that are either:
    (1) In strong tight metal containers of not more than 20 liters (5.3 
gallons) capacity, each packed inside a UN 4G fiberboard box or each 
packed inside a UN 4C1 wooden box, or in the case of a small aircraft in 
Alaska, each packed inside a wooden box of at least 1.3 cm (0.51 inch) 
thickness;
    (2) Airtight, leakproof, inside containers of not more than 40 
liters (11 gallons) capacity and of at least 28-gauge metal, each packed 
inside a UN 4C1 wooden box or, in the case of a small aircraft in 
Alaska, each packed inside a wooden box of at least 1.3 cm (0. 51 inch) 
thickness;
    (3) UN 1A1 steel drums of not more than 20 liters (5.3 gallons) 
capacity; or
    (4) Fuel tanks attached to flammable liquid fuel powered equipment 
under the following conditions:
    (i) Each piece of equipment is secured in an upright position;
    (ii) Each fuel tank is filled in a manner that will preclude 
spillage of fuel during loading, unloading, and transportation; and
    (d) In the case of a helicopter, the fuel is carried on external 
cargo racks;
    (e) Each area or compartment in which the fuel is loaded is suitably 
ventilated to prevent the accumulation of fuel vapors;
    (f) Before each flight, the pilot-in-command:
    (1) Informs each passenger of the location of the fuel and the 
hazards involved; and
    (2) Prohibits smoking, lighting matches, the carrying of any lighted 
cigar, pipe, cigarette or flame, and the use of anything that might 
cause an open flame or spark, while loading or unloading or in flight; 
and
    (g) Fuel is transferred to the fuel tanks only while the aircraft is 
on the surface.
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976, as amended by Amdt. 175-1A, 41 
FR 40686, Sept. 20, 1976; Amdt. 175-12, 45 FR 13091, Feb. 28, 1980; 
Amdt. 175-21, 46 FR 58696, Dec. 3, 1981; Amdt. 175-47, 55 FR 52686, Dec. 
21, 1990]



Sec. 175.320  Cargo aircraft only; only means of transportation.

    (a) Notwithstanding Sec. 172.101 of this subchapter, when means of 
transportation other than air are impracticable or not available, 
hazardous materials listed in the following table may be carried on a 
cargo aircraft only, subject to the conditions stated in the table and 
in paragraph (b) of this section and, when appropriate, paragraph (c) of 
this section:

[[Page 636]]



                                                                                                                
----------------------------------------------------------------------------------------------------------------
                Material                             Class                             Conditions               
----------------------------------------------------------------------------------------------------------------
Detonators, detonator assemblies and      Division 1.1 or 1.2 (Class   Permitted only when no other hazardous   
 boosters with detonators.                 A) explosives.               material is aboard the aircraft.        
Detonators, detonator assemblies and      Division 1.4 (Class C)       With the exception of Division 1.1 or 1.2
 boosters with detonators.                 explosives.                  Detonators, detonator assemblies and    
                                                                        boosters with detonators, permitted only
                                                                        when there are no Division 1.1 or 1.2   
                                                                        (Class A) explosives aboard aircraft.   
Fuel, aviation, turbine engine; methyl    Class 3 (flammable liquid).  Permitted in metal drums authorized for  
 alcohol; or toluene.                                                   Packing Group I or II liquid hazardous  
                                                                        materials having rated capacities of 220
                                                                        liters (58.1 gallons) or less. May not  
                                                                        be transported in the same aircraft with
                                                                        Class 1 (explosives), Class 5           
                                                                        (oxidizer), or Class 8 (corrosive)      
                                                                        materials. Permitted in installed tanks 
                                                                        each having a capacity of more than 450 
                                                                        liters (118.9 gallons) subject to the   
                                                                        conditions specified in paragraph (c) of
                                                                        this section.                           
Gasoline................................  Class 3 (flammable liquid).  Permitted in metal drum having rated     
                                                                        capacities of 220 liters (58.1 gallons) 
                                                                        or less. May not be transported in the  
                                                                        same aircraft with materials classed as 
                                                                        Class 1 (explosive), Class 5 (oxidizer),
                                                                        or Class 8 (corrosive) materials.       
                                                                        Permitted in installed tanks each having
                                                                        a capacity of 450 liters (118.9         
                                                                        gallons). Subject to the conditions     
                                                                        specified in paragraph (c) of this      
                                                                        section.                                
High explosives.........................  Class 1 (explosive)          Limited to Class 1 (explosive) materials 
                                           materials.                   to be used for blasting. Permitted only 
                                                                        when no other cargo is aboard the       
                                                                        aircraft or when being transported in   
                                                                        the same aircraft with an authorized    
                                                                        shipment of any one or more of any of   
                                                                        the following materials to be used for  
                                                                        blasting:                               
                                                                       Ammonium nitrate-fuel oil mixtures.      
                                                                        Blasting explosives (Division 1.1D or   
                                                                        1.5D), or Blasting agent (Division      
                                                                        1.5D), Very insensitive explosive       
                                                                        substances, n.o.s., or Substances, EVI, 
                                                                        n.o.s. (Division 1.5D), Extremely       
                                                                        insensitive explosive articles or       
                                                                        Articles, EEI (Division 1.6N).          
                                                                       Detonating cord.                         
                                                                       Propellant explosive (solid) (Division   
                                                                        1.3) (water gels only)                  
                                                                       Propellant explosive (liquid) (Division  
                                                                        1.3) (water gels only)                  
Oil n.o.s.; petroleum oil or petroleum    Class 3 (flammable liquid).  Permitted in metal drums having rated    
 oil, n.o.s.                                                            capacities of 220 liters (58.1 gallons) 
                                                                        or less. May not be transported in the  
                                                                        same aircraft with materials classed as 
                                                                        Class 1 (explosive), Class 5 (oxidizer),
                                                                        or Class 8 (corrosive) materials.       
                                                                        Permitted in installed tanks each having
                                                                        a capacity of 450 liters (118.9         
                                                                        gallons). Subject to the conditions     
                                                                        specified in paragraph (c) of this      
                                                                        section.                                
Combustible liquid n.o.s................  Class 3 (combustible         Permitted in installed tanks each having 
                                           liquid).                     a capacity of more than 450 liters      
                                                                        (118.9 gallons) subject to the          
                                                                        conditions specified in paragraph (c) of
                                                                        this section.                           
----------------------------------------------------------------------------------------------------------------

    (b) The following conditions apply to the carriage of hazardous 
materials performed under the authority of this section:
    (1) No person other than a required flight crewmember, an FAA 
inspector, the shipper or consignee of the material or a representative 
of the shipper or consignee so designated in writing, or a person 
necessary for handling the material may be carried on the aircraft.
    (2) The operator of the aircraft must have advance permission from 
the owner or operator of each manned airport where the material is to be 
loaded or unloaded or where the aircraft is to land while the material 
is on board. When the destination is changed after departure because of 
weather or other unforeseen circumstances, permission from the owner or 
operator of the alternate airport should be obtained as soon as 
practicable before landing.
    (3) At any airport where the airport owner or operator or authorized 
representative thereof has designated a location for loading or 
unloading the material concerned, the material may not be loaded or 
unloaded at any other location.
    (4) If the material concerned can create destructive forces or have 
lethal or injurious effects over an appreciable area as a result of an 
accident involving the aircraft or the material, the loading and 
unloading of the aircraft and its operation in takeoff, en route, and in 
landing must be conducted at a safe distance from heavily populated

[[Page 637]]

areas and from any place of human abode or assembly.
    (5) If the aircraft is being operated by a holder of a certificate 
issued under 14 CFR part 121, part 127 or part 135, operations must be 
conducted in accordance with conditions and limitations specified in the 
certificate holder's operations specifications or operations manual 
accepted by the FAA. If the aircraft is being operated under 14 CFR part 
91, operations must be conducted in accordance with an operations plan 
accepted and acknowledged in writing by the Civil Aviation Security 
Office serving the operator's location or the place where the material 
is to be loaded.
    (6) Each pilot of the aircraft must be provided written instructions 
stating the conditions and limitations of the operation being conducted 
and the name of the airport official[s] granting the advance permission 
required by the first sentence of paragraph (b)(2) of this section.
    (7) The aircraft and the loading arrangement to be used must be 
approved for safe carriage of the particular materials concerned by the 
FAA Civil Aviation Security Office responsible for the operator's 
overall aviation security program or the appropriate FAA Civil Aviation 
Security Office serving the place where the material is to be loaded.
    (8) When Division 1.1 or 1.2 (explosive) materials are carried 
aboard cargo aircraft only under the provisions of this section, the 
aircraft operator shall take all possible action to insure that routes 
over heavily populated areas are avoided commensurate with 
considerations of flight safety. During the approach and landing phase, 
the aircraft operator shall request appropriate vectors when under radar 
control to avoid heavily populated areas.
    (9) During loading and unloading, no person may smoke, carry a 
lighted cigarette, cigar, or pipe, or operate any device capable of 
causing an open flame or spark within 15 m (50 feet) of the aircraft.
    (10) If the movement involves international transportation, 
permission for the shipment may also be required from the appropriate 
authorities of the countries of origin, destination, transit and 
overflight prior to departure.
    (c) The following additional conditions apply to the carriage of 
Class 3 (flammable) and combustible liquid materials in tanks each 
having a capacity of more than 420 liters (111 gallons) under the 
authority of this section:
    (1) The tanks and their associated piping and equipment and the 
installation thereof must have been approved for the material to be 
transported by the appropriate FAA Regional Office.
    (2) In the case of an aircraft being operated by a certificate 
holder, the operator shall list the aircraft and the approval 
information in its operating specifications. If the aircraft is being 
operated by other than a certificate holder, a copy of the FAA Regional 
Office approval required by this section must be carried on the 
aircraft.
    (3) The crew of the aircraft must be thoroughly briefed on the 
operation of the particular bulk tank system being used.
    (4) During loading and unloading and thereafter until any remaining 
fumes within the aircraft are dissipated:
    (i) Only those electrically operated bulk tank shutoff valves that 
have been approved under a supplemental type certificate may be 
electrically operated.
    (ii) No engine or electrical equipment, avionic equipment, or 
auxiliary power units may be operated, except position lights in the 
steady position and equipment required by approved loading or unloading 
procedures, as set forth in the operator's operations manual, or for 
operators that are not certificate holders, as set forth in a written 
statement.
    (iii) No person may fill a container, other than an approved bulk 
tank, with a Class 3 (flammable and combustible liquid) materials or 
discharge a Class 3 (flammable and combustible liquid) materials from a 
container, other than an approved bulk tank, while that container is 
inside or within 15 m (50 feet) of the aircraft.
    (iv) When filling an approved bulk tank by hose from inside the 
aircraft, the doors and hatches must be fully open to insure proper 
ventilation.

[[Page 638]]

    (v) Static ground wires must be connected between the storage tank 
or fueler and the aircraft, and between the aircraft and a positive 
ground device.
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 175.320, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 175.630  Special requirements for Division 6.1 (poisonous) materials and materials in Division 6.2 (etiologic or infectious substances).

    (a) Hazardous materials bearing the POISON, KEEP AWAY FROM FOOD, 
ETIOLOGIC AGENT, or INFECTIOUS SUBSTANCE label may not be carried in the 
same compartment of an aircraft with material which is marked as or 
known to be foodstuffs, feed, or any other edible material intended for 
consumption by humans or animals unless either the Division 6.1 
(poisonous) materials or materials in Division 6.2 (etiologic or 
infectious substances) and the foodstuffs, feed, or other edible 
materials are loaded in separate unit load devices which, when stowed on 
the aircraft, are not adjacent to each other, or the Division 6.1 
(poisonous) materials or materials in Division 6.2 (etiologic or 
infectious substances) are loaded in one closed unit load device and the 
foodstuffs, feed or other materials are loaded in another closed unit 
load device.
    (b) No person may operate an aircraft that has been used to 
transport any package bearing a POISON label unless, upon removal of 
such package, the area in the aircraft in which it was carried is 
visually inspected for evidence of leakage, spillage, or other 
contamination. All contamination discovered must be either isolated or 
removed from the aircraft. The operation of an aircraft contaminated 
with such Division 6.1 (poisonous) materials is considered to be the 
carriage of poisonous materials under paragraph (a) of this section.
[Amdt. 175-1, 41 FR 16106, Apr. 15, 1976, as amended by Amdt. 175-30, 48 
FR 53713, Nov. 29, 1983; Amdt. 175-46, 55 FR 39981, Oct. 1, 1990; Amdt. 
175-47, 55 FR 52686, Dec. 21, 1990]

    Effective Date Note: By Amdt. 175-85, 62 FR 1236, Jan. 8, 1997, 
Sec. 175.630 was revised, effective Oct. 1, 1997. At 62 FR 39398, July 
22, 1997 the effective date was delayed until Oct. 1, 1998. For the 
convenience of the user the revised text is set forth as follows:

Sec. 175.630  Special requirements for Division 6.1 (poisonous) material 
          and Division 6.2 (infectious substance) material.

    (a) A hazardous material bearing a POISON, POISON INHALATION HAZARD, 
KEEP AWAY FROM FOOD, or INFECTIOUS SUBSTANCE label may not be carried in 
the same compartment of an aircraft with material which is marked as or 
known to be a foodstuff, feed, or any other edible material intended for 
consumption by humans or animals unless either the Division 6.1 
(poisonous) material or material in Division 6.2 (infectious substance) 
and the foodstuff, feed, or other edible material are loaded in separate 
unit load devices which, when stowed on the aircraft, are not adjacent 
to each other, or the Division 6.1 (poisonous) material or material in 
Division 6.2 (infectious substance) are loaded in one closed unit load 
device and the foodstuff, feed or other material is loaded in another 
closed unit load device.
    (b) No person may operate an aircraft that has been used to 
transport any package bearing a POISON or POISON INHALATION HAZARD label 
unless, upon removal of such package, the area in the aircraft in which 
it was carried is visually inspected for evidence of leakage, spillage, 
or other contamination. All contamination discovered must be either 
isolated or removed from the aircraft. The operation of an aircraft 
contaminated with such Division 6.1 (poisonous) materials is considered 
to be the carriage of poisonous materials under paragraph (a) of this 
section.
[Amdt. 175-85, 62 FR 1236, Jan. 8, 1997]



Sec. 175.700  Special limitations and requirements for Class 7 (radioactive) materials.

    (a) In addition to other requirements, no person may carry in a 
passenger-carrying aircraft any package required to be labeled in 
accordance with Sec. 172.403 of this subchapter with a Radioactive 
Yellow-II or Radioactive Yellow-III label unless:
    (1) For a package required to be labeled Radioactive Yellow-II, the 
transport index does not exceed 1.0;
    (2) For a package required to be labeled Radioactive Yellow-III, the 
transport index does not exceed 3.0;
    (3) The package is carried on the floor of the cargo compartment, or 
freight container; and
    (4) The package is carried in the aircraft in accordance with 
Secs. 175.701 and 175.703(c).

[[Page 639]]

    (b) In addition to the reporting requirements of Sec. 175.15, the 
carrier shall also notify the offeror at the earliest practicable moment 
following any incident in which there has been breakage, spillage, or 
suspected radioactive contamination involving Class 7 (radioactive) 
materials shipments. Aircraft in which Class 7 (radioactive) materials 
have been spilled may not again be placed in service or routinely 
occupied until the radiation dose rate at every accessible surface is 
less than 0.005 mSv per hour (0.5 mrem per hour) and there is no 
significant removable radioactive surface contamination as determined in 
accordance with Sec. 173.443 of this subchapter. When contamination is 
present or suspected, the package and/or materials it has touched must 
be segregated as far as practicable from personnel contact until 
appropriate radiological advice or assistance is obtained. The Regional 
Office of the U.S. Department of Energy or appropriate State or local 
radiological authorities can provide advice or assistance, and should be 
notified in cases of obvious leakage, or if it appears likely that the 
inside container may have been damaged. For personnel safety, the 
carrier shall take care to avoid possible inhalation, ingestion, or 
contact by any person with Class 7 (radioactive) materials that may have 
leaked or spilled from its package. Any loose Class 7 (radioactive) 
materials and associated packaging materials must be left in a 
segregated area pending disposal instructions from responsible 
radiological authorities.
    (c) Except as provided in Secs. 173.4, 173.422 and 173.423 of this 
subchapter, no person shall carry any Class 7 (radioactive) materials 
aboard a passenger carrying aircraft unless that material is intended 
for use in, or incident to research, medical diagnosis or treatment.
    (d) Type B(M) packages may not be offered or accepted for 
transportation, nor transported, on passenger-carrying aircraft.
[Amdt. 175-13, 45 FR 20101, Mar. 27, 1980, as amended by Amdt. 175-19, 
46 FR 24185, Apr. 30, 1981; Amdt. 175-26, 48 FR 10245, Mar. 10, 1983; 
Amdt. 175-31, 49 FR 38134, Sept. 27, 1984; 50 FR 18668, May 2, 1985; 
Amdt. 175-47, 55 FR 52687, Dec. 21, 1990; Amdt. 175-50, 58 FR 50505, 
Sept. 27, 1993; Amdt. 175-51, 59 FR 49134, Sept. 26, 1994; Amdt. 175-53, 
60 FR 50333, Sept. 28, 1995; 62 FR 51561, Oct. 1, 1997]



Sec. 175.701  Separation distance requirements for packages containing Class 7 (radioactive) materials in passenger-carrying aircraft.

    (a) General. No person may carry in a passenger-carrying aircraft 
any package required by Sec. 172.403 of this subchapter to be labeled 
Radioactive Yellow-II, or Radioactive Yellow-III unless the package is 
placed in the aircraft in accordance with the minimum separation 
distances prescribed in paragraph (b) or (c) of this section.
    (b) Separation distances. (1) Except as provided in paragraph (c) of 
this section, the minimum separation distances prescribed in paragraphs 
(b)(2) and (b)(3) of this section are determined by measuring the 
shortest distance between the surfaces of the Class 7 (radioactive) 
materials package and the surfaces bounding the space occupied by 
passengers or animals. If more than one package of Class 7 (radioactive) 
materials is placed in a passenger-carrying aircraft, the minimum 
separation distance for these packages shall be determined in accordance 
with paragraphs (b)(2) and (b)(3) of this section on the basis of the 
sum of the transport index numbers of the individual packages or 
overpacks.
    (2) The following table prescribes minimum separation distances that 
must be maintained in passenger-carrying aircraft between Class 7 
(radioactive) materials labeled Radioactive Yellow-II or Radioactive 
Yellow-III and passengers and crew:

[[Page 640]]



                                                                        
------------------------------------------------------------------------
                                                    Minimum separation  
 Transport index or sum of transport indexes of         distances       
 all packages in the aircraft or predesignated  ------------------------
                      area                       Centimeters    Inches  
------------------------------------------------------------------------
0.1 to 1.0.....................................           30          12
1.1 to 2.0.....................................           50          20
2.1 to 3.0.....................................           70          28
3.1 to 4.0.....................................           85          34
4.1 to 5.0.....................................          100          40
5.1 to 6.0.....................................          115          46
6.1 to 7.0.....................................          130          52
7.1 to 8.0.....................................          145          57
8.1 to 9.0.....................................          155          61
9.1 to 10.0....................................          165          65
10.1 to 11.0...................................          175          69
11.1 to 12.0...................................          185          73
12.1 to 13.0...................................          195          77
13.1 to 14.0...................................          205          81
14.1 to 15.0...................................          215          85
15.1 to 16.0...................................          225          89
16.1 to 17.0...................................          235          93
17.1 to 18.0...................................          245          97
18.1 to 20.0...................................          260         102
20.1 to 25.0...................................          290         114
25.1 to 30.0...................................          320         126
30.1 to 35.0...................................          350         138
35.1 to 40.0...................................          375         148
40.1 to 45.0...................................          400         157
45.1 to 50.0...................................          425         167
------------------------------------------------------------------------

    (3) Class 7 (radioactive) materials in packages, overpacks or 
freight containers labeled Radioactive Yellow-II or Radioactive Yellow-
III must be separated from live animals by a distance of at least 0.5 
meters (20 inches) for journeys not exceeding 24 hours, and by a 
distance of at least 1.0 meters (39 inches) for journeys longer than 24 
hours.
    (c) Predesignated areas. A package required by Sec. 172.403 of this 
subchapter to be labeled Radioactive Yellow-II or Radioactive Yellow-III 
may be carried in a passenger-carrying aircraft in accordance with a 
system of predesignated areas established by the aircraft operator. Each 
aircraft operator that elects to use a system of predesignated areas 
shall submit a detailed description of the proposed system to the 
Associate Administrator for Hazardous Materials Safety for approval 
prior to implementation of the system. A proposed system of 
predesignated areas is approved if the Associate Administrator for 
Hazardous Materials Safety determines that it is designed to assure 
that:
    (1) The packages can be placed in each predesignated area in 
accordance with the minimum separation distances prescribed in paragraph 
(b)(2) of this section; and
    (2) The predesignated areas are separated from each other by minimum 
distance equal to at least four times the distances required by 
paragraphs (b)(1) and (b)(2) of this section for the predesignated area 
containing packages with the largest sum of transport indexes.
[Amdt. 175-13, 45 FR 20102, Mar. 27, 1980, as amended by Amdt. 175-23, 
47 FR 43066, Sept. 30, 1982; Amdt. 175-25, 47 FR 54824, Dec. 6, 1982; 
Amdt. 175-47, 55 FR 52687, Dec. 21, 1990; 56 FR 66281, Dec. 20, 1991; 
Amdt. 175-49, 58 FR 50494, Sept. 27, 1993]



Sec. 175.702  Requirements for carriage of packages containing Class 7 (radioactive) materials in a cargo aircraft only.

    (a) As used in this section, the term ``group of packages'' means 
packages that are separated from each other in an aircraft by a distance 
of 6 m (20 feet) or less.
    (b) No person may carry in a cargo aircraft only any package 
required by Sec. 172.403 of this subchapter to be labeled Radioactive 
Yellow-II or Radioactive Yellow-III unless:
    (1) The total transport index for all of the packages does not 
exceed 50.0 and the package is carried in accordance with 
Sec. 175.701(a); or
    (2) The total transport index for all of the packages exceeds 50.0 
and:
    (i) The separation distance between the surfaces of the Class 7 
(radioactive) materials packages, overpacks or freight containers and 
any space occupied by--
    (A) Humans is at least 9 meters (30 feet); and
    (B) Live animals is at least 0.5 meters (20 inches) for journeys not 
exceeding 24 hours and at least 1.0 meters (39 inches) for journeys 
longer than 24 hours;
    (ii) The transport index for any group of packages does not exceed 
50.0; and
    (iii) Each group of packages is separated from every other group in 
the aircraft by not less than 6 m (20 feet), measured from the outer 
surface of each group; and

[[Page 641]]

    (iv) The total transport index for all packages containing fissile 
Class 7 (radioactive) materials does not exceed 50.0.
[Amdt. 175-13, 45 FR 20102, Mar. 27, 1980, as amended by Amdt. 175-29, 
48 FR 50461, Nov. 1, 1983; Amdt. 175-47, 55 FR 52687, Dec. 21, 1990; 
Amdt. 175-49, 58 FR 50494, Sept. 27, 1993]



Sec. 175.703  Other special requirements for the acceptance and carriage of packages containing Class 7 (radioactive) materials.

    (a) No person may carry in an aircraft any package of Class 7 
(radioactive) materials required by Sec. 172.403 of this subchapter to 
be labeled Radioactive Yellow-II or Radioactive Yellow-III closer than 
the distances shown in the following table to any package marked as 
containing undeveloped film:

                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                  Minimum separation distance to nearest undeveloped film for various times of transit  
                                                               -----------------------------------------------------------------------------------------
                        Transport index                           Up to 2 hours     2 to 4 hours      4 to 8 hours      8 to 12 hours     Over 12 hours 
                                                               -----------------------------------------------------------------------------------------
                                                                 Meters    Feet    Meters    Feet    Meters    Feet    Meters    Feet    Meters    Feet 
--------------------------------------------------------------------------------------------------------------------------------------------------------
0.1 to 1.0....................................................      0.3        1      0.6        2      0.9        3      1.2        4      1.5        5
1.1 to 5.0....................................................      0.9        3      1.2        4      1.8        6      2.4        8      3.3       11
5.1 to 10.0...................................................      1.2        4      1.8        6      2.7        9      3.3       11      4.5       15
10.1 to 20.0..................................................      1.5        5      2.4        8      3.6       12      4.8       16      6.6       22
20.1 to 30.0..................................................      2.1        7      3.0       10      4.5       15      6.0       20      8.7       29
30.1 to 40.0..................................................      2.4        8      3.3       11      5.1       17      6.6       22      9.9       33
40.1 to 50.0..................................................      2.7        9      3.6       12      5.7       19      7.2       24    10. 8       36
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (b) No person may accept for carriage in an aircraft packages of 
Class 7 (radioactive) materials, other than limited quantities, 
contained in a rigid or non-rigid overpack, including a fiberboard box 
or plastic bag, unless they have been prepared for shipment in 
accordance with Sec. 173.448(g) of this subchapter.
    (c) No person shall carry in an aircraft a fissile material 
controlled shipment (as defined in Sec. 173.403 of this subchapter), 
except--
    (1) In a cargo aircraft only which has been assigned for the 
exclusive use of the shipper for the specific shipment of fissile Class 
7 (radioactive) material. Instructions for the exclusive use must be 
developed by the shipper and carrier, and the instructions issued with 
the shipping papers; or
    (2) In an aircraft in which there are no other packages required to 
bear a radioactive label as prescribed in Sec. 172.403 of this 
subchapter. Specific arrangements must be made between the shipper and 
carrier, with instructions to that effect issued with the shipping 
papers.
    (d) No person shall offer or accept for transportation, or 
transport, by air--
    (1) Vented Type B(M) packages, packages which require external 
cooling by an ancillary cooling system or packages subject to 
operational controls during transport; or
    (2) Liquid pyrophoric Class 7 (radioactive) materials.
    (e) Packages with radiation levels at the package surface or a 
transport index in excess of the limits specified in Sec. 173.441(a) of 
this subchapter may not be transported by aircraft except under special 
arrangements approved by RSPA.
[Amdt. 175-13, 45 FR 20102, Mar. 27, 1980, as amended by Amdt. 175-26, 
48 FR 10245, Mar. 10, 1983; Amdt. 175-26, 48 FR 31220, July 7, 1983; 
Amdt. 175-29, 48 FR 50461, Nov. 1, 1983; Amdt. 175-47, 55 FR 52687, Dec. 
21, 1990; Amdt. 175-53, 60 FR 50333, Sept. 28, 1995]



Sec. 175.704  Plutonium shipments.

    Shipments of plutonium by air which are subject to 10 CFR 
71.88(a)(4) must comply with the following:
    (a) A plutonium package weighing less than 40 kg (88 lbs) and having 
its height and diameter both less than 50 cm (19.7 in), must be stowed 
aboard the aircraft on the main deck or the lower cargo compartment in 
the aft-most location that is possible for cargo of its size and weight. 
No other type of cargo may be stowed aft of a plutonium package.

[[Page 642]]

    (b) A plutonium package must be secured and restrained to prevent 
shifting under normal transport. A plutonium package weighing 40 kg (88 
lbs) or more must be securely cradled and tied down to the main deck of 
the aircraft such that the tied down system is capable of providing 
package restraint against the following inertial forces acting 
separately relative to the deck of the aircraft: Upward, 2g; Forward, 
9g; Sideward, 1.5g; Downward, 4.5g.
    (c) A plutonium package weighing less than 40 kg (88 lbs), and 
having its height and diameter both less than 50 cm (19.7 in), may not 
be transported aboard an aircraft carrying other cargo required to bear 
an ``Explosive A'' or an ``Explosive 1.1'' label. Any other plutonium 
package may not be transported aboard an aircraft carrying other cargo 
bearing any of the following hazardous material labels: Explosive A; 
Explosive B; Explosive C; Explosive 1.1, 1.2, 1.3, 1.4, 1.5 or 1.6; 
Spontaneously Combustible; Dangerous When Wet; Organic Peroxide; Non-
Flammable Gas; Flammable Liquid; Flammable Solid; Flammable Gas; 
Oxidizer; or Corrosive.
[Amdt. 175-53, 60 FR 50333, Sept. 28, 1995]



Sec. 175.705  Inspection of aircraft for contamination by Class 7 (radioactive) materials.

    (a) Aircraft used routinely for the carriage of Class 7 
(radioactive) materials shall be periodically checked for radioactive 
contamination. The frequency of checks shall be related to the 
likelihood of contamination and the extent to which Class 7 
(radioactive) materials are carried.
    (b) An aircraft must be taken out of service if the level of 
contamination exceeds that provided in Sec. 175.700(b).
[Amdt. 175-25, 47 FR 54824, Dec. 6, 1982, as amended by Amdt. 175-47, 55 
FR 52687, Dec. 21, 1990]



PART 176--CARRIAGE BY VESSEL--Table of Contents




                           Subpart A--General

Sec.
176.1  Purpose and scope.
176.2  Definitions.
176.3  Unacceptable hazardous materials shipments.
176.4  Port security and safety regulations.
176.5  Application to vessels.
176.9  ``Order-Notify'' or ``C.O.D.'' shipments.
176.11  Exceptions.
176.13  Responsibility for compliance and training.
176.15  Enforcement.
176.18  Assignment and certification.

                Subpart B--General Operating Requirements

176.24  Shipping papers.
176.27  Certificate.
176.30  Dangerous cargo manifest.
176.31  Exemptions.
176.36  Preservation of records.
176.39  Inspection of cargo.
176.45  Emergency situations.
176.48  Situation requiring report.
176.50  Acceptance of damaged or leaking packages.
176.52  Rejections of shipments in violation.
176.54  Repairs involving welding, burning, and power-actuated tools and 
          appliances.

                 Subpart C--General Handling and Stowage

176.57  Supervision of handling and stowage.
176.58  Preparation of the vessel.
176.60  ``No Smoking'' signs.
176.63  Stowage locations.
176.65  Alternative stowage procedures.
176.69  General stowage requirements for hazardous materials.
176.70  Stowage requirements for marine pollutants.
176.72  Handling of break-bulk hazardous materials.
176.74  On deck stowage of break-bulk hazardous materials.
176.76  Transport vehicles, freight containers, and portable tanks 
          containing hazardous materials.
176.77  Stowage of barges containing hazardous materials on board barge-
          carrying vessels.
176.78  Use of power-operated industrial trucks on board vessels.

               Subpart D--General Segregation Requirements

176.80  Application.
176.83  Segregation.
176.84  Other requirements for stowage and segregation for cargo vessels 
          and passenger vessels.

   Subpart E--Special Requirements for Transport Vehicles Loaded With 
       Hazardous Materials and Transported on Board Ferry Vessels

176.88  Application.
176.89  Control of transport vehicles.

[[Page 643]]

176.90  Private automobiles.
176.91  Motorboats.
176.92  Cylinders laden in vehicles.
176.93  Vehicles having refrigerating or heating equipment.

               Subpart F--Special Requirements for Barges

176.95  Application.
176.96  Materials of construction.
176.97  Prohibition of dump scows.
176.98  Stowage of hazardous materials on board barges.
176.99  Permit requirements for certain hazardous materials.

   Subpart G--Detailed Requirements for Class 1 (Explosive) Materials

176.100  Permit for Divisions 1.1 and 1.2 (Classes A and B explosive) 
          materials.
176.102  Supervisory detail.
176.104  Loading and unloading Class 1 (explosive) materials.
176.108  Supervision of Class 1 (explosive) materials during loading, 
          unloading, handling and stowage.

                                 Stowage

176.112  Application of stowage provisions.
176.116  General stowage conditions for Class 1 (explosive) materials.
176.118  Electrical requirement.
176.120  Lightning protection.
176.122  Stowage arrangements under deck.
176.124  Ordinary stowage.
176.128  Magazine stowage, general.
176.130  Magazine stowage Type A.
176.132  Magazine stowage Type B.
176.133  Magazine stowage Type C.
176.134  Vehicles.
176.136  Special stowage.
176.137  Portable magazine.
176.138  Deck stowage.

                               Segregation

176.140  Segregation from other classes of hazardous materials.
176.142  Hazardous materials of extreme flammability.
176.144  Segregation of Class 1 (explosive) materials.
176.145  Segregation in single hold vessels.
176.146  Segregation from non-hazardous materials.

                Precautions During Loading and Unloading

176.148  Artificial lighting.
176.150  Radio and radar.
176.154  Fueling (bunkering).
176.156  Defective packages.
176.160  Protection against weather.
176.162  Security.
176.164  Fire precautions and firefighting.

                            Passenger Vessels

176.166  Transport of Class 1 (explosive) materials on passenger 
          vessels.

                  Transport Units and Shipborne Barges

176.168  Transport of Class 1 (explosive) materials in vehicle spaces.
176.170  Transport of Class 1 (explosive) materials in freight 
          containers.
176.172  Structural serviceability of freight containers and vehicles 
          carrying Class 1 (explosive) materials on ships.
176.174  Transport of Class 1 (explosive) materials in shipborne barges.

             Handling Class 1 (Explosive) Materials in Port

176.176  Signals.
176.178  Mooring lines.
176.180  Watchkeeping.
176.182  Conditions for handling on board ship.
176.184  Class 1 (explosive) materials of Compatibility Group L.
176.190  Departure of vessel.
176.192  Cargo handling equipment for freight containers carrying Class 
          1 (explosive) materials.

                            Magazine Vessels

176.194  Stowage of Class 1 (explosive) materials on magazine vessels.

 Subpart H--Detailed Requirements for Class 2 (Compressed Gas) Materials

176.200  General stowage requirements.
176.205  Under deck stowage requirements.
176.210  On deck stowage requirements.
176.220  Smoking or open flame and posting of warning signs.
176.225  Stowage of chlorine.
176.230  Stowage of Division 2.1 (flammable gas) materials.

Subpart I--Detailed Requirements for Class 3 (Flammable) and Combustible 
                            Liquid Materials

176.305  General stowage requirements.
176.315  Fire protection requirements.
176.320  Use of hand flashlights.
176.325  Smoking or open flame and posting of warning signs.
176.340  Combustible liquids in portable tanks.

Subpart J--Detailed Requirements for Class 4 (Flammable Solids), Class 5 
 (Oxidizers and Organic Peroxides), and Division 1.5 (Blasting Agents) 
                                Materials

176.400  Stowage of Division 1.5 (blasting agents), Class 4 (flammable 
          solids) and Class 5 (oxidizers and organic peroxides) 
          materials.

[[Page 644]]

176.405  Stowage of charcoal.
176.410  Division 1.5 (blasting agents) materials, ammonium nitrate and 
          ammonium nitrate mixtures.
176.415  Permit requirements for Division 1.5 (blasting agents), 
          ammonium nitrates, and certain ammonium nitrate fertilizers.

                          Subpart K--[Reserved]

 Subpart L--Detailed Requirements for Division 2.3 (Poisonous Gas) and 
                   Division 6.1 (Poisonous) Materials

176.600  General stowage requirement.
176.605  Care following leakage or sifting of Division 2.3 (poisonous 
          gas) and Division 6.1 (poisonous) materials.

       Subpart M--Detailed Requirements for Radioactive Materials

176.700  General stowage requirements.
176.704  Requirements relating to transport indexes.
176.708  Segregation distance table.
176.710  Care following leakage or sifting of radioactive materials.
176.715  Contamination control.

   Subpart N--Detailed Requirements for Class 8 (Corrosive Materials) 
                                Materials

176.800  General stowage requirements.
176.805  On deck stowage.

Subpart O--Detailed Requirements for Cotton and Vegetable Fibers, Motor 
                         Vehicles, and Asbestos

176.900  Packaging and stowage of cotton and vegetable fibers; general.
176.901  Stowage of cotton or vegetable fibers with rosin or pitch.
176.903  Stowage of cotton or vegetable fibers with coal.
176.905  Motor vehicles or mechanical equipment powered by internal 
          combustion engines.

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.



                           Subpart A--General



Sec. 176.1  Purpose and scope.

    This part prescribes requirements in addition to those contained in 
parts 171, 172, and 173 of this subchapter to be observed with respect 
to the transportation of hazardous materials by vessel.



Sec. 176.2  Definitions.

    As used in this part--

    Cantline means the v-shaped groove between two abutting, parallel 
horizontal cylinders.

    Cargo net means a net made of fiber or wire used to provide 
convenience in handling loose or packaged cargo to and from a vessel.

    Clear of living quarters means that the hazardous material must be 
located so that in the event of release of the material, leakage or 
vapors will not penetrate accommodations, machinery spaces or other work 
areas by means of entrances or other openings in bulkheads or 
ventilation ducts.

    Closed freight container means a freight container which totally 
encloses its contents by permanent structures. A freight container 
formed partly by a tarpaulin, plastic sheet, or similar material is not 
a closed freight container.

    Commandant (G-MTH) means the Chief, Marine Technical and Hazardous 
Materials Division, Office of Marine Safety, Security and Environmental 
Protection, United States Coast Guard, Washington, DC 20593-0001.

    Compartment means any space on a vessel that is enclosed by the 
vessel's decks and its sides or permanent steel bulkheads.

    CSC safety approval plate means the safety approval plate specified 
in Annex I of the International Convention for Safe Containers (1972) 
and conforming to the specifications in 49 CFR 451.23 and 451.25. The 
plate is evidence that a freight container was designed, constructed, 
and tested under international rules incorporated into U.S. regulations 
in 49 CFR parts 450 through 453. The plate is found in the door area of 
the container.

    Deck structure means a structure of substantial weight and size 
located on the weather deck of a vessel and integral with the deck. This 
term includes superstructures, deck houses, mast houses, and bridge 
structures.

    Draft means a load or combination of loads capable of being hoisted 
into or out of a vessel in a single lift.

    Dunnage means lumber of not less than 25 mm (0.98 inch) commercial 
thickness or equivalent material laid over or against structures such as 
tank tops, decks, bulkheads, frames, plating,

[[Page 645]]

or ladders, or used for filling voids or fitting around cargo, to 
prevent damage during transportation.

    Explosives anchorage means an anchorage so designated under 33 CFR 
part 110, subpart B.

    Explosive article means an article or device which contains one or 
more explosive substances. Individual explosive articles are identified 
in the schedules for Class I (explosive) articles found in the IMDG 
Code.

    Explosives handling facility means--

    (1) A ``designated waterfront facility'' designated under 33 CFR 
part 126 when loading, handling, and unloading Class 1 (explosives) 
materials; or

    (2) A facility for loading, unloading, and handling military Class 1 
(explosives) materials which is operated or controlled by an agency of 
the Department of Defense.

    Explosive substance means a solid or liquid material, or a mixture 
of materials, which is in itself capable by chemical reaction of 
producing gas at such a temperature and pressure and at such a speed as 
to cause damage to its surroundings. Individual explosive substances are 
identified in the schedules for Class 1 (explosive) substances in the 
IMDG Code.

    Handling means the operation of loading and unloading a vessel; 
transfer to, from, or within a vessel, and any ancillary operations.

    Hold means a compartment below deck that is used exclusively for the 
carriage of cargo.

    In containers or the like means in any clean, substantial, 
weatherproof box structure which can be secured to the vessel's 
structure, including a portable magazine or a closed transport unit. 
Whenever this stowage is specified, stowage in deckhouses, mast lockers 
and oversized weatherproof packages (overpacks) is also acceptable.
    Incompatible materials means two materials whose stowage together 
may result in undue hazards in the case of leakage, spillage, or other 
accident.
    Landing mat means a shock absorbing pad used in loading Class 1 
(explosive) materials on vessels.
    Machinery Spaces of Category A are those spaces, and trunks to such 
spaces, which contain:
    (1) Internal combustion machinery used for main propulsion:
    (2) Internal combustion machinery used for purposes other than main 
propulsion where such machinery has in the aggregate a total power 
output of not less than 375 kw; or
    (3) any oil-fired boiler or fuel unit.
    Magazine means an enclosure designed to protect certain goods of 
Class 1 (explosive) materials from damage by other cargo and adverse 
weather conditions during loading, unloading, and when in transit; and 
to prevent unauthorized access. A magazine may be a fixed structure in 
the vessel, a closed freight container, a closed transport vehicle, or a 
portable magazine.
    Master of the Vessel, as used in this part, includes the person in 
charge of an unmanned vessel or barge.
    Open freight container means a freight container that does not 
totally enclose its contents by permanent structures.
    Overstowed means a package or container is stowed directly on top of 
another. However, with regard to Class 1 (explosive) stowage, such goods 
may themselves be stacked to a safe level but other goods should not be 
stowed directly on top of them.
    Pallet means a portable platform for stowing, handling, and moving 
cargo.
    Palletized unit means packages or unpackaged objects stacked on a 
pallet, banded and secured to the pallet by metal, fabric, or plastic 
straps for the purpose of handling as a single unit.
    Pie plate means a round, oval, or hexagonal pallet without 
sideboards, used in conjunction with a cargo net to handle loose cargo 
on board a vessel.
    Portable magazine means a strong, closed, prefabricated, steel or 
wooden, closed box or container, other than a freight container, 
designed and used to handle Class 1 (explosive) materials either by hand 
or mechanical means.
    Readily combustible material means a material which may or may not 
be classed as a hazardous material but which is easily ignited and 
supports combustion. Examples of readily combustible materials include 
wood, paper, straw, vegetable fibers, products made from such materials, 
coal, lubricants, and oils. This definition does not apply to packaging 
material or dunnage.

[[Page 646]]

    Responsible person means a person empowered by the master of the 
vessel to make all decisions relating to his or her specific task, and 
having the necessary knowledge and experience for that purpose.
    Safe working load means the maximum gross weight that cargo handling 
equipment is approved to lift.
    Skilled person means a person having the knowledge and experience to 
perform a certain duty.
    Skipboard means a square or rectangular pallet without sideboards, 
usually used in conjunction with a cargo net to handle loose cargo on 
board a vessel.
    Splice as used in Sec. 176.172 of this part, means any repair of a 
freight container main structural member which replaces material, other 
than complete replacement of the member.
    Transport unit means a transport vehicle or a freight container. A 
closed transport unit means a transport unit in which the contents are 
totally enclosed by permanent structures. An open transport unit means a 
transport unit which is not a closed transport unit. Transport units 
with fabric sides or tops are not closed transport units for the 
purposes of this part.
    Tray means a type of pallet constructed to specific dimensions for 
handling a particular load.
[Amdt. 176-30, 55 FR 52687, Dec. 21, 1990]



Sec. 176.3  Unacceptable hazardous materials shipments.

    (a) A carrier may not transport by vessel any shipment of a 
hazardous material that is not prepared for transportation in accordance 
with parts 172 and 173 of this subchapter.
    (b) A carrier may not transport by vessel any explosive or explosive 
composition described in Sec. 173.54 of this subchapter.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-30, 55 
FR 52688, Dec. 21, 1990]



Sec. 176.4  Port security and safety regulations.

    (a) Each carrier, master, agent, and charterer of a vessel and all 
other persons engaged in handling hazardous materials on board vessels 
shall comply with the applicable provisions of 33 CFR parts 6, 109, 110, 
125, 126, and 160.
    (b) Division 1.1 and 1.2 (Class A and B explosive) materials may 
only be loaded on and unloaded from a vessel at--
    (1) A facility of particular hazard as defined in 33 CFR 126.05(b);
    (2) An explosives anchorage listed in 33 CFR part 110; or
    (3) A facility operated or controlled by the Department of Defense.
    (c) With the concurrence of the COTP, Division 1.1 and 1.2 (Class A 
and B explosive) materials may be loaded on or unloaded from a vessel in 
any location acceptable to the COTP.
[Amdt. 176-30, 55 FR 52688, Dec. 21, 1990]



Sec. 176.5  Application to vessels.

    (a) Except as provided in paragraph (b) of this section, this 
subchapter applies to each domestic or foreign vessel when in the 
navigable waters of the United States, regardless of its character, 
tonnage, size, or service, and whether self-propelled or not, whether 
arriving or departing, underway, moored, anchored, aground, or while in 
dry dock.
    (b) This subchapter does not apply to:
    (1) A public vessel not engaged in commercial service;
    (2) A vessel constructed or converted for the principal purpose of 
carrying flammable or combustible liquid cargo in bulk in its own tanks, 
when only carrying these liquid cargoes;
    (3) A vessel of 15 gross tons or smaller when not engaged in 
carrying passengers for hire;
    (4) A vessel used exclusively for pleasure;
    (5) A vessel of 500 gross tons or smaller when engaged in fisheries;
    (6) A tug or towing vessel, except when towing another vessel having 
Class 1 (explosive) materials, Class 3 (flammable liquids), or Division 
2.1 (flammable gas) materials, in which case the owner/operator of the 
tug or towing vessel shall make such provisions to guard against and 
extinguish fire as the Coast Guard may prescribe;
    (7) A cable vessel, dredge, elevator vessel, fireboat, icebreaker, 
pile driver, pilot boat, welding vessel, salvage vessel, or wrecking 
vessel; or
    (8) A foreign vessel transiting the territorial sea of the United 
States

[[Page 647]]

without entering the internal waters of the United States, if all 
hazardous materials being carried on board are being carried in 
accordance with the requirements of the IMDG Code.
    (c) [Reserved]
    (d) Except for transportation in bulk packagings (as defined in 
Sec. 171.8 of this subchapter), the bulk carriage of hazardous materials 
by water is governed by 46 CFR chapter I, subchapters D, I, N and O.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976; Amdt. 176-14, 47 FR 44471, Oct. 7, 1982; Amdt. 
176-24, 51 FR 5974, Feb. 18, 1986; Amdt. 176-30, 55 FR 52688, Dec. 21, 
1990; 56 FR 66281, Dec. 20, 1991; Amdt. 176-34, 58 FR 51533, Oct. 1, 
1993]



Sec. 176.9  ``Order-Notify'' or ``C.O.D.'' shipments.

    A carrier may not transport Division 1.1 or 1.2 (Class A explosive) 
materials, detonators, or boosters with detonators which are:
    (a) Consigned to ``order-notify'' or ``C.O.D.'', except on a through 
bill of lading to a place outside the United States; or
    (b) Consigned by the shipper to himself unless he has a resident 
representative to receive the shipment at the port of discharge.
[Amdt. 176-30, 55 FR 52688, Dec. 21, 1990]



Sec. 176.11  Exceptions.

    (a) A hazardous material may be offered and accepted for transport 
by vessel when in conformance with the IMDG Code, subject to the 
conditions and limitations set forth in Sec. 171.12 of this subchapter. 
The requirements of Secs. 176.83, 176.84, and 176.112 through 176.174 
are not applicable to shipments of Class 1 (explosive) materials made in 
accordance with the IMDG Code. A hazardous material which conforms to 
the provisions of this paragraph (a) is not subject to the requirement 
specified in Sec. 172.201(d) of this subchapter for an emergency 
response telephone number, when transportation of the hazardous material 
originates and terminates outside the United States and the hazardous 
material--
    (1) Is not offloaded from the vessel; or
    (2) Is offloaded between ocean vessels at a U.S. port facility 
without being transported by public highway.
    (b) Canadian shipments and packages may be transported by vessel if 
they are transported in accordance with this subchapter. (See 
Sec. 171.12a of this subchapter.)
    (c) The requirements of this subchapter governing the transportation 
of combustible liquids do not apply to the transportation of combustible 
liquids in non-bulk (see definitions in Sec. 171.8 of this subchapter) 
packages on board vessels.
    (d) Transport vehicles, containing hazardous materials loaded in 
accordance with specific requirements of this subchapter applicable to 
such vehicles, may be transported on board a ferry vessel or carfloat, 
subject to the applicable requirements specified in Secs. 176.76, 
176.100, and subpart E of this part.
    (e) Hazardous materials classed and shipped as ORM-D are not subject 
to the requirements of this part unless they are offered for 
transporation as hazardous wastes.
    (f) Paragraph (a) of this section does not apply to hazardous 
materials, including certain hazardous wastes and hazardous substances 
as defined in Sec. 171.8 of this subchapter, which are not subject to 
the requirements of the IMDG Code.
    (g) The requirements of this subchapter do not apply to atmospheric 
gases used in a refrigeration system.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 176.11, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 176.13  Responsibility for compliance and training.

    (a) Unless this subchapter specifically provides that another person 
shall perform a particular duty, each carrier shall perform the duties 
specified and comply with all applicable requirements in this part and 
shall ensure its hazmat employees receive training in relation thereto.
    (b) A carrier may not transport a hazardous material by vessel 
unless each of its hazmat employees involved

[[Page 648]]

in that transportation is trained as required by subpart H of part 172 
of this subchapter.
    (c) The record of training required by Sec. 172.704(d) of this 
subchapter for a crewmember who is a hazmat employee subject to the 
training requirements of this subchapter must be kept on board the 
vessel while the crewmember is in service on board the vessel.
[Amdt. 176-31, 57 FR 20954, May 15, 1992, as amended by Amdt. 176-35, 59 
FR 49134, Sept. 26, 1994]



Sec. 176.15  Enforcement.

    (a) An enforcement officer of the U.S. Coast Guard may at any time 
and at any place, within the jurisdiction of the United States, board 
any vessel for the purpose of enforcement of this subchapter and inspect 
any shipment of hazardous materials as defined in this subchapter.
    (b) [Reserved]
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976; Amdt. 176-24, 51 FR 5974, Feb. 18, 1986]



Sec. 176.18  Assignment and certification.

    (a) The National Cargo Bureau, Inc., is authorized to assist the 
Coast Guard in administering this subchapter with respect to the 
following:
    (1) Inspection of vessels for suitability for loading hazardous 
materials;
    (2) Examination of stowage of hazardous materials;
    (3) Making recommendations for stowage requirements of hazardous 
materials cargo; and
    (4) Issuance of certificates of loading setting forth that the 
stowage of hazardous materials is in accordance with the requirements of 
this subchapter.
    (b) A certificate of loading issued by the National Cargo Bureau, 
Inc., may be accepted by the Coast Guard as prima facie evidence that 
the cargo is stowed in conformity with the requirements of this 
subchapter.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-24, 51 
FR 5974, Feb. 18, 1986]



                Subpart B--General Operating Requirements



Sec. 176.24  Shipping papers.

    A carrier may not transport a hazardous material by vessel unless 
the material is properly described on the shipping paper in the manner 
prescribed in part 172 of this subchapter.



Sec. 176.27  Certificate.

    (a) A carrier may not transport a hazardous material by vessel 
unless he has received a certificate prepared in accordance with 
Sec. 172.204 of this subchapter.
    (b) In the case of an import or export shipment of hazardous 
materials which will not be transported by rail, highway, or air, the 
shipper may certify on the bill of lading or other shipping paper that 
the hazardous material is properly classed, described, marked, packaged, 
and labeled according to part 172 of this subchapter or in accordance 
with the requirements of the IMDG Code. See Sec. 171.12 of this 
subchapter.
    (c)(1) A person responsible for packing or loading a freight 
container or transport vehicle containing hazardous materials for 
transportation by a manned vessel in ocean or coastwise service, must 
provide the vessel operator, at the time the shipment is offered for 
transportation by vessel, with a signed container packing certificate 
stating, at a minimum, that--
    (i) The freight container or transport unit is serviceable for the 
materials loaded therein, contains no incompatible goods, and is 
properly marked, labeled or placarded, as applicable; and
    (ii) When the freight container or transport unit contains packages, 
those packages have been inspected prior to loading, are properly 
marked,

[[Page 649]]

labeled or placarded, as applicable; are not damaged; and are properly 
secured.
    (2) The certification may appear on a shipping paper or on a 
separate document as a statement such as ``It is declared that the 
packing of the container has been carried out in accordance with the 
provisions of 49 CFR 176.27(c)''.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976; Amdt. 176-12, 45 FR 81572, Dec. 11, 1980; 
Amdt. 176-14, 47 FR 44471, Oct. 7, 1982; Amdt. 176-36, 59 FR 67518, Dec. 
29, 1994]



Sec. 176.30  Dangerous cargo manifest.

    (a) The carrier, its agents, and any person designated for this 
purpose by the carrier or agents shall prepare a dangerous cargo 
manifest, list, or stowage plan. This document may not include a 
material which is not subject to the requirements of 49 CFR or the IMDG 
Code. This document must be kept in a designated holder on or near the 
vessel's bridge. It must contain the following information:
    (1) Name of vessel and official number. (If the vessel has no 
official number, the international radio call sign must be 
substituted.);
    (2) Nationality of vessel;
    (3) Shipping name and identification number of each hazardous 
material on board as listed in Sec. 172.101 of this subchapter or as 
listed in the IMDG Code and an emergency response telephone number as 
prescribed in subpart G of part 172 of this subchapter.
    (4) The number and description of packages (barrels, drums, 
cylinders, boxes, etc.) and gross weight for each type of packaging;
    (5) Classification of the hazardous material in accordance with 
either;
    (i) The Hazardous Materials Table, the Sec. 172.101 Table; or
    (ii) The International Maritime Organization's IMDG Code.
    (6) Any additional description required by Sec. 172.203 of this 
subchapter.
    (7) Stowage location of the hazardous material on board the vessel.
    (8) In the case of a vessel used for the storage of explosives or 
other hazardous materials, the following additional information is 
required:
    (i) Name and address of vessel's owner;
    (ii) Location of vessel's mooring;
    (iii) Name of person in charge of vessel;
    (iv) Name and address of the owner of the cargo; and
    (v) A complete record, by time intervals of one week, of all 
receipts and disbursements of hazardous materials. The name and address 
of the consignor must be shown against all receipts and the name and 
address of the consignee against all deliveries.
    (b) The hazardous material information on the dangerous cargo 
manifest must be the same as the information furnished by the shipper on 
the shipping order or other shipping paper, except that the IMO 
``correct technical name'' and the IMO class may be indicated on the 
manifest as provided in paragraphs (a)(3) and (a)(5) of this section. 
The person who supervises the preparation of the manifest, list, or 
stowage plan shall ensure that the information is correctly transcribed, 
and shall certify to the truth and accuracy of this information to the 
best of his knowledge and belief by his signature and notation of the 
date prepared.
    (c) The carrier and its agents shall insure that the master, or a 
licensed deck officer designated by the master and attached to the 
vessel, or in the case of a barge, the person in charge of the barge, 
acknowledges the correctness of the dangerous cargo manifest, list or 
stowage plan by his signature.
    (d) For barges, manned or unmanned, the requirements of this section 
apply except for the following:
    (1) In the case of a manned barge, the person in charge of the barge 
shall prepare the dangerous cargo manifest.
    (2) In the case of an unmanned barge, the person responsible for 
loading the barge is responsible for the preparation of a dangerous 
cargo manifest, list, or stowage plan and must designate an individual 
for that purpose.
    (3) For all barges, manned or unmanned, the dangerous cargo manifest 
must be on board the barge in a readily accessible location and a copy 
must be furnished to the person in charge of the towing vessel.
    (e) Each carrier who transports or stores hazardous materials on a 
vessel shall retain a copy of the dangerous cargo manifest, list, or 
stowage plan

[[Page 650]]

for at least one year, and shall make that document available for 
inspection in accordance with Sec. 176.36(b) of this subchapter.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 176.30, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 176.31  Exemptions.

    If a hazardous material is being transported by vessel under the 
authority of an exemption and a copy of the exemption is required to be 
on board the vessel, it must be kept with the dangerous cargo manifest.



Sec. 176.36  Preservation of records.

    (a) When this part requires shipping orders, manifest, cargo lists, 
stowage plans, reports, or any other papers, documents or similar 
records to be prepared, the carrier shall preserve them or copies of 
them in his place of business or office in the United States for a 
period of one year after their preparation.
    (b) Any record required to be preserved must be made available upon 
request to an authorized representative of the Department of 
Transportation.



Sec. 176.39  Inspection of cargo.

    (a) Manned vessels. The carrier, its agents, and any person 
designated for this purpose by the carrier or agents shall cause an 
inspection of each hold or compartment containing hazardous materials to 
be made after stowage is complete, and at least once every 24 hours 
thereafter, weather permitting, in order to ensure that the cargo is in 
a safe condition and that no damage caused by shifting, spontaneous 
heating, leaking, sifting, wetting, or other cause has been sustained by 
the vessel or its cargo since loading and stowage. However, freight 
containers or individual barges need not be opened. A vessel's holds 
equipped with smoke or fire detecting systems having an automatic 
monitoring capability need not be inspected except after stowage is 
complete and after periods of heavy weather. The carrier, its agents, 
and any person designated for this purpose by the carrier or agents 
shall cause an entry to be made in the vessel's deck log book for each 
inspection of the stowage of hazardous materials performed.
    (b) Unmanned and magazine vessels. An inspection of the cargo must 
be made after stowage has been completed to ensure that stowage has been 
accomplished properly and that there are no visible signs of damage to 
any packages or evidence of heating, leaking, or sifting. This 
inspection must be made by the individual who is responsible to the 
carrier and who is in charge of loading and stowing the cargo on the 
unmanned vessels or the individual in charge in the case of a magazine 
vessel.
    (c) The carrier, its agents, and any person designated for this 
purpose by the carrier or agents of each ocean-going vessel carrying 
hazardous material shall, immediately prior to entering a port in the 
United States, cause an inspection of that cargo to be made.
    (d) When inspecting a cargo of hazardous materials capable of 
evolving flammable vapors, any artificial means of illumination must be 
of an explosion-proof type.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-8, 44 
FR 23228, Apr. 19, 1979; Amdt. 176-9, 44 FR 49458, Aug. 23, 1979]



Sec. 176.45  Emergency situations.

    (a) When an accident occurs on board a vessel involving hazardous 
materials, and the safety of the vessel, its passengers or crew are 
endangered, the master shall adopt such procedures as will, in his 
judgment, provide maximum safety for the vessel, its passengers, and its 
crew. When the accident results in damaged packages or the emergency use 
of unauthorized packagings, these packages may not be offered to any 
forwarding carrier for transportation. The master shall notify the 
nearest Captain of the Port, U.S. Coast Guard, and request instructions 
for disposition of the packages.
    (b) Hazardous materials may be jettisoned only if the master 
believes this action necessary to prevent or substantially reduce a 
hazard to human life or reduce a substantial hazard to property.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1B, 41 
FR 57072, Dec. 30, 1976]

[[Page 651]]



Sec. 176.48  Situation requiring report.

    (a) When a fire or other hazardous condition exists on a vessel 
transporting hazardous materials, the master shall notify the nearest 
Captain of the Port as soon as possible and shall comply with any 
instructions given by the Captain of the Port.
    (b) When an incident occurs during transportation in which a 
hazardous material is involved, a report may be required (see 
Secs. 171.15 and 171.16 of this subchapter).
    (c) If a package, portable tank, freight container, highway or 
railroad vehicle containing hazardous materials is jettisoned or lost, 
the master shall notify the nearest Captain of the Port as soon as 
possible of the location, quantity, and type of the material.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976; Amdt. 176-1B, 41 FR 57072, Dec. 30, 1976; 
Amdt. 176-24, 51 FR 5974, Feb. 18, 1986; Amdt. 176-25, 52 FR 8592, Mar. 
19, 1987]



Sec. 176.50  Acceptance of damaged or leaking packages.

    A carrier may not transport by vessel any package that is so damaged 
as to permit the escape of its contents, that appears to have leaked, or 
that gives evidence of failure to properly contain the contents unless 
it is restored or repaired to the satisfaction of the master of the 
vessel. A package containing radioactive materials (other than low 
specific activity materials) may not be repaired or restored.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976]



Sec. 176.52  Rejections of shipments in violation.

    (a) A carrier may not knowingly transport by vessel any hazardous 
material offered under a false or deceptive name, marking, invoice, 
shipping paper or other declaration, or without the shipper furnishing 
written information about the true nature of the material at the time of 
delivery.
    (b) If a shipment in violation is found in transit, the master of 
the vessel shall adopt procedures which in his judgment provide maximum 
safety to the vessel, its passengers and its crew and which are in 
compliance with Sec. 176.45. If the vessel is in port, the material may 
not be delivered to any party, and the master shall immediately notify 
the nearest Captain of the Port and request instructions for disposition 
of the material.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1B, 41 
FR 57072, Dec. 30, 1976]



Sec. 176.54  Repairs involving welding, burning, and power-actuated tools and appliances.

    (a) Except as provided in paragraph (b) of this section, repairs or 
work involving welding or burning, or the use of power-actuated tools or 
appliances which may produce intense heat may not be undertaken on any 
vessel having on board explosives or other hazardous materials as cargo.
    (b) Paragraph (a) of this section does not apply if:
    (1) The repairs or work are approved by the COTP under 33 CFR 
126.15(c); or
    (2) Emergency repairs to the vessel's main propelling or boiler 
plant or auxiliaries are necessary for the safety of the vessel. If such 
repairs are performed, the master of the vessel must immediately notify 
the nearest COTP.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-30, 55 
FR 52689, Dec. 21, 1990]



                 Subpart C--General Handling and Stowage



Sec. 176.57  Supervision of handling and stowage.

    (a) Hazardous materials may be handled or stowed on board a vessel 
only under the direction and observation of a responsible person 
assigned this duty.
    (b) For a vessel engaged in coastwise voyages, or on rivers, bays, 
sounds or lakes, including the Great Lakes when the voyage is not 
foreign-going, the responsible person may be an employee of the carrier 
and assigned this duty by the carrier, or a licensed officer attached to 
the vessel and assigned by the master of the vessel.
    (c) For a domestic vessel engaged in a foreign-going or intercoastal 
voyage, the responsible person must be an officer possessing an 
unexpired license issued by the USCG and assigned this duty by the 
master of the vessel.

[[Page 652]]

    (d) For a foreign vessel, the responsible person must be an officer 
of the vessel assigned this duty by the master of the vessel.
[Amdt. 176-30, 55 FR 52689, Dec. 21, 1990]



Sec. 176.58  Preparation of the vessel.

    (a) Each hold or compartment in which hazardous materials are to be 
stowed must be free of all debris before the hazardous materials are 
stowed. Bilges must be examined and all residue of previous cargo 
removed.
    (b) All decks, gangways, hatches, and cargo ports over or through 
which hazardous materials must be passed or handled in loading or 
unloading must be free of all loose materials before cargo handling 
operations begin.
    (c) No debris that creates a fire hazard or a hazardous condition 
for persons engaged in handling hazardous materials may be on the 
weather deck of a vessel during loading or unloading operations.
    (d) Hatch beams and hatch covers may not be stowed in a location 
that would interfere with cargo handling.
[Amdt. 176-30, 55 FR 52689, Dec. 21, 1990]



Sec. 176.60  ``No Smoking'' signs.

    When smoking is prohibited during the loading, stowing, storing, 
transportation, or unloading of hazardous materials by this part, the 
carrier and the master of the vessel are jointly responsible for posting 
``NO SMOKING'' signs in conspicuous locations.



Sec. 176.63  Stowage locations.

    (a) The table in Sec. 172.101 of this subchapter specifies generally 
the locations authorized for stowage of the various hazardous materials 
on board vessels. This part prescribes additional requirements with 
respect to the stowage of specific hazardous materials in addition to 
those authorized in Sec. 172.101 of this subchapter. This section sets 
forth the basic physical requirements for the authorized locations.
    (b) To qualify as ``on deck'' stowage, the location must be on the 
weather deck. If it is in a house on the weather deck, it must have a 
permanent structural opening to the atmosphere, such as a door, hatch 
companionway or manhole, and must be vented to the atmosphere. It may 
not have any structural opening to any living quarters, cargo, or other 
compartment unless the opening has means for being closed off and 
secured. Any deck house containing living quarters, a steering engine, a 
refrigerating unit, a refrigerated stowage box, or a heating unit may 
not be used unless that area is isolated from the cargo stowage area by 
a permanent, and tight metallic bulkhead. Stowage in a shelter or 'tween 
deck is not considered to be ``on deck''. A barge which is vented to the 
atmosphere and is stowed on deck on a barge-carrying ship is considered 
to be ``on deck''. When an entry in Sec. 172.101 of this subchapter 
requires ``on-deck'' stowage and is qualified by the requirement ``shade 
from radiant heat'', the stowage must be protected from the direct rays 
of the sun by means of structural erections or awnings except that such 
protection is not required for shipment in portable tanks.
    (c) To qualify as ``under deck'' stowage, the location must be in a 
hold or compartment below the weather deck capable of being ventilated 
and allotted entirely to the carriage of cargo. It must be bounded by 
permanent steel decks and bulkheads or the shell of the vessel. The deck 
openings must have means for effectively closing the hold or compartment 
against the weather, and in the case of superimposed holds, for 
effectively closing off each hold. A hold or compartment containing a 
crew passage formed by battens or by mesh or wire screen bulkhead may 
not be used for the stowage of any hazardous material unless a watchman 
is provided for this area.
    (d) To qualify as ``under deck away from heat'', the location must 
be under deck and have built-in means for ventilation. If it is subject 
to heat from any artificial source, it only qualifies for the stowage of 
those hazardous materials for which ``under deck'' stowage is 
authorized.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976; Amdt. 176-1B, 41 FR 57072, Dec. 30, 1976; 
Amdt. 176-12, 45 FR 81572, Dec. 11, 1980]

[[Page 653]]



Sec. 176.65  Alternative stowage procedures.

    When a hazardous material is to be loaded on board a vessel and it 
is shown to the satisfaction of the Coast Guard Captain of the Port for 
the place where the vessel is being loaded that it is impracticable to 
comply with a stowage location requirement specified in the Sec. 172.101 
Table of this subchapter or a segregation, handling or stowage 
requirement specified in this part, the Captain of the Port may 
authorize in writing the use of an alternative stowage location or 
method of segregation, handling or stowage subject to such conditions as 
he finds will insure a level of safety at least equal to that afforded 
by the regulatory requirement concerned.
[Amdt. 176-30, 55 FR 52689, Dec. 21, 1990]



Sec. 176.69  General stowage requirements for hazardous materials.

    (a) Hazardous materials (except as provided in paragraph (c) of this 
section and Class 9 (miscellaneous hazardous) materials) must be stowed 
in a manner that will facilitate inspection during the voyage, their 
removal from a potentially dangerous situation, and the removal of 
packages in case of fire.
    (b) Each package marked in accordance with Sec. 172.312(a)(2) of 
this subchapter must be stowed as to remain in the position indicated 
during transportation.
    (c) If a vessel designed for and carrying hazardous materials in 
freight containers or a vessel designed for and carrying hazardous 
materials in barges is equipped with a fixed fire extinguishing and fire 
detection system, the freight containers or barges need not be stowed in 
the manner required by paragraph (a) of this section. When freight 
containers or barges containing hazardous materials are stowed on deck, 
they need not be stowed in the manner required by paragraph (a) of this 
section if fire fighting equipment capable of reaching and piercing the 
freight container or barge is on board the vessel.
    (d) Packages of hazardous materials must be secured and dunnaged to 
prevent movement in any direction. Vertical restraints are not required 
if the shape of the package and the stuffing pattern preclude shifting 
of the load.
    (e) Packages of hazardous materials must be braced and dunnaged so 
that they are not likely to be pierced by the dunnage or crushed by a 
superimposed load.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976; Amdt. 176-12, 45 FR 81573, Dec. 11, 1980; 
Amdt. 176-30, 55 FR 52689, Dec. 21, 1990; 56 FR 66282, Dec. 20, 1991]



Sec. 176.70  Stowage requirements for marine pollutants.

    (a) Marine pollutants must be properly stowed and secured to 
minimize the hazards to the marine environment without impairing the 
safety of the ship and the persons on board.
    (b) Where stowage is permitted ``on deck or under deck'', under deck 
stowage is preferred except when a weather deck provides equivalent 
protection.
    (c) Where stowage ``on deck only'' is required, preference should be 
given to stowage on well-protected decks or to stowage inboard in 
sheltered areas of exposed decks.
[Amdt. 176-31, 57 FR 52940, Nov. 5, 1992]



Sec. 176.72  Handling of break-bulk hazardous materials.

    (a) A metal bale hook may not be used for handling any package of 
hazardous materials.
    (b) The use of equipment designed to lift or move cargo by means of 
pressure exerted on the packages may not be used for handling any 
package of hazardous materials if the device can damage the package or 
the package is not designed to be moved in that manner.
    (c) Pallets, slings, cargo nets and other related equipment used in 
loading packages of hazardous materials must give adequate support to 
the packages. The packages must be contained so that they are not able 
to fall during loading.



Sec. 176.74  On deck stowage of break-bulk hazardous materials.

    (a) Packages containing hazardous materials must be secured by 
enclosing in boxes, cribs or cradles and proper lashing by use of wire 
rope, strapping or other means, including shoring and bracing, or both. 
Lashing of deck cargo

[[Page 654]]

is permitted if eye pads are used to attach the lashings. Lashings may 
not be secured to guard rails. Bulky articles must be shored.
    (b) A packaging susceptible to weather or water damage must be 
protected so that it will not be exposed to the weather or to sea water.
    (c) Not more than fifty percent of the total open deck area should 
be used for stowage of hazardous materials (except Class 9 
(miscellaneous hazardous) materials material).
    (d) Fireplugs, hoses, sounding pipes, and access to these must be 
free and clear of all cargo.
    (e) Crew and passenger spaces and areas set aside for the crew's use 
may not be used to stow any hazardous material.
    (f) A hazardous material may not be stowed within a horizontal 
distance of 25 feet of an operating or embarkation point of a lifeboat.
    (g) Hazardous materials must be stowed to permit safe access to the 
crew's quarters and to all parts of the deck required in navigation and 
necessary working of the vessel.
    (h) When runways for use of the crew are built over stowed hazardous 
materials, they must be constructed and fitted with rails and lifelines 
so as to afford complete protection to the crew when in use.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1B, 41 
FR 57072, Dec. 30, 1976; Amdt. 176-30, 55 FR 52689, Dec. 21, 1990; 56 FR 
66282, Dec. 20, 1991]



Sec. 176.76  Transport vehicles, freight containers, and portable tanks containing hazardous materials.

    (a) Except as provided in paragraphs (b) through (f) of this 
section, hazardous materials authorized to be transported by vessel may 
be carried on board a vessel in a transport vehicle or freight 
container, subject to the following conditions (see additional 
requirements concerning the transport of Class 1 (explosive) materials 
in Secs. 176.168 through 176.172 of this subchapter):
    (1) The material must be in proper condition for transportation 
according to the requirements of this subchapter;
    (2) All packages in the transport vehicle or freight container must 
be secured to prevent movement in any direction. Vertical restraint is 
not required if the shape of the packages, loading pattern, and 
horizontal restraint preclude vertical movement of the load within the 
freight container or transport vehicle;
    (3) Bulkheads made of dunnage which extend to the level of the cargo 
must be provided unless the packages are stowed flush with the sides or 
ends;
    (4) Dunnage must be secured to the floor when the cargo consists of 
dense materials or heavy packages;
    (5) Each package marked in accordance with Sec. 172.312(a)(2) of 
this subchapter must be stowed as marked;
    (6) Any slack spaces between packages must be filled with dunnage;
    (7) The weight in a container must be distributed throughout as 
evenly as possible and the maximum permissible weight must not be 
exceeded;
    (8) Adjacent levels of baggaged and baled cargo must be stowed in 
alternate directions so that each tier binds the tier above and below 
it;
    (9) [Reserved]
    (10) The lading must be contained entirely within the freight 
container or vehicle body without overhang or projection except that 
oversized machinery such as tractors or vehicles with batteries attached 
may overhang or project outside the intermodal container provided all of 
that portion of the lading that consists of hazardous materials is 
contained entirely within the freight container. No open-bed container 
or vehicle is permitted to carry hazardous materials unless it is 
equipped with a means of properly securing the lading.
    (b) A transport vehicle containing hazardous materials may be 
carried only on board a trailership, trainship, ferry vessel or car 
float.
    (c) [Reserved]
    (d) A transport vehicle or freight container equipped with heating 
or refrigeration equipment may be operated on board a vessel. However, 
the equipment may not be operated in any hold or compartment in which 
any flammable liquid or gas is stowed. Any heating or air conditioning 
equipment having a fuel tank containing a flammable liquid or gas may be 
stowed only ``on deck''. Equipment electrically powered

[[Page 655]]

and designed to operate within an environment containing flammable 
vapors may be operated below deck in a hold or compartment containing a 
flammable liquid or gas. (See Sec. 176.79.)
    (e) A transport vehicle, loaded with any hazardous material which is 
required to be stowed ``on deck'' by Sec. 172.101 of this subchapter, 
may be stowed one deck below the weather deck when transported on a 
trainship or trailership which is unable to provide ``on deck'' stowage 
because of the vessel's design. Otherwise, the transport vehicle or 
container must be transported ``on deck.''
    (f) A hazardous material may be carried on board a vessel in a 
portable tank subject to the following conditions:
    (1) Small passenger vessels of 100 gross tons, or less, may carry a 
hazardous material in a portable tank only when 16 or less passengers 
are on board and only when specifically authorized by the Officer-in-
Charge, Marine Inspection, by endorsement of the vessel's Certificate of 
Inspection.
    (2) Portable tanks containing Flammable liquids or gases, 
Combustible liquids with flashpoints below 141 deg. F. that are 
insoluble in water, or organic peroxides, spontaneously combustible 
materials, or water reactive materials must be stowed on deck 
irrespective of the stowage authorized in Sec. 172.101 of this 
subchapter. Portable tanks containing hazardous materials not restricted 
to on deck stowage by the previous sentence must be stowed in accordance 
with the requirements specified in Sec. 172.101 of this subchapter.
    (3) Aluminum, magnesium, and their alloys are specifically 
prohibited as materials of construction of portable tanks.
    (g) Cryogenic liquids. For shipment of cryogenic liquids on board a 
vessel the packaging must be designed and filled so that:
    (1) Any cryogenic liquid being transported in a cargo tank, 
regardless of the pressure in the package, must be contained in a steel 
jacketed Specification MC-338 (Sec. 178.338 of this subchapter) 
insulated cargo tank.
    (2) Any valve or fitting with moving or abrading parts that may come 
in contact with any cryogenic liquid may not be made of aluminum.
    (3) For a flammable cryogenic liquid being transported in a cargo 
tank, the elapsed time between the loading of the cargo tank and the 
subsequent unloading of the cargo tank at its final destination may not 
exceed the marked rated holding time (MRHT) of the cargo tank for the 
cryogenic liquid being transported, which must be displayed on or 
adjacent to the specification plate.
    (4) Portable tanks, cargo tanks, and tank cars containing cryogenic 
liquids must be stowed ``on deck'' regardless of the stowage authorized 
in Sec. 172.101 of this subchapter. Cargo tanks or tank cars containing 
cryogenic liquids may be stowed one deck below the weather deck when 
transported on a trailership or trainship that is unable to provide ``on 
deck'' stowage because of the vessel's design. Tank cars must be Class 
DOT-113 or AAR-204W tank cars.
    (h) A fumigated transport unit may only be transported on board a 
vessel subject to the following conditions and limitations:
    (1) The fumigated transport unit may be placed on board a vessel 
only if at least 24 hours have elapsed since the unit was last 
fumigated;
    (2) The fumigated transport unit is accompanied by a document 
showing the date of fumigation and the type and amount of fumigant used;
    (3) Prior to loading, the master is informed of the intended 
placement of the fumigated transport unit on board the vessel and the 
information provided on the accompanying document;
    (4) Equipment that is capable of detecting the fumigant and 
instructions for the equipment's use is provided on the vessel;
    (5) The fumigated transport unit must be stowed at least five meters 
from any opening to accommodation spaces;
    (6) Fumigated transport units may only be transported on deck on 
vessels carrying more than 25 passengers; and
    (7) Fumigants may not be added to transport units while on board a 
vessel.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976]

    Editorial Note: For Federal Register citations affecting 
Sec. 176.76, see the List of

[[Page 656]]

CFR Sections Affected appearing in the Finding Aids section of this 
volume.



Sec. 176.77  Stowage of barges containing hazardous materials on board barge-carrying vessels.

    (a) A barge which contains hazardous materials may be transported on 
board a barge-carrying vessel if it is stowed in accordance with the 
requirements of this section.
    (b) A barge which contains hazardous materials for which only ``on 
deck'' stowage is authorized must be stowed above the weather deck and 
be vented to the atmosphere.
    (c) A barge which contains hazardous materials for which both ``on 
deck'' and ``below deck'' storage is authorized may be stowed above or 
below the weather deck.



Sec. 176.78  Use of power-operated industrial trucks on board vessels.

    (a) Power Operated trucks. A power-operated truck (including a 
power-operated tractor, forklift, or other specialized truck used for 
cargo handling) may not be used on board a vessel in a space containing 
a hazardous material unless the truck conforms to the requirements of 
this section. The COTP may suspend or prohibit the use of cargo handling 
vehicles or equipment when that use constitutes a safety hazard.
    (b) Each truck must have a specific designation of Underwriter's 
Laboratories or Factory Mutual Laboratories. Any repair or alteration to 
a truck must be equivalent to that required on the original designation.
    (c) Description of designations. The recognized testing laboratory 
type designations are as follows:
    (1) An ``E'' designated unit is an electrically-powered unit that 
has minimum acceptable safeguards against inherent fire hazards.
    (2) An ``EE'' designated unit is an electrically-powered unit that 
has, in addition to all the requirements for the ``E'' unit, the 
electric motor and all other electrical equipment completely enclosed.
    (3) An ``EX'' designated unit is an electrically-powered unit that 
differs from the ``E'' and ``EE'' unit in that the electrical fittings 
and equipment are so designed, constructed, and assembled that the unit 
may be used in certain atmospheres containing flammable vapors or dusts.
    (4) A ``G'' designated unit is a gasoline-powered unit having 
minimum acceptable safeguards against inherent fire hazards.
    (5) A ``GS'' designated unit is a gasoline-powered unit that is 
provided with additional safeguards to the exhaust, fuel, and electrical 
systems.
    (6) An ``LP'' designated unit is similar to a ``G'' unit except that 
it is powered by liquefied petroleum gas instead of gasoline.
    (7) An ``LPS'' designated unit is a unit similar to a ``GS'' unit 
except that liquefied petroleum gas is used for fuel instead of 
gasoline.
    (8) A ``D'' designated unit is a unit similar to a ``G'' unit except 
that it is powered by a diesel engine instead of a gasoline engine.
    (9) A ``DS'' designated unit is a unit powered by a diesel engine 
provided with additional safeguards to the exhaust, fuel, and electrical 
systems.
    (d) Class 1 (explosive) materials. No power-operated truck may be 
used to handle Class 1 (explosive) materials or other cargo in an area 
near Class 1 (explosive) materials on board a vessel except:
    (1) A power-operated truck designated EE or EX.
    (2) A power-operated truck designated LPS, GS, D, or DS may be used 
under conditions acceptable to the COTP.
    (e) Other hazardous materials. (1) Only an ``EX'', ``EE'', ``GS'', 
``LPA'', or ``DS'' truck may be used in a hold or compartment containing 
Division 2.1 (flammable gas) materials, Class 3 (flammable liquids), 
Class 4 (flammable solids) materials, or Class 5 (oxidizers or organic 
peroxides) materials, cottons or other vegetable fibers, or bulk sulfur.
    (2) Only a designated truck may be used to handle any other 
hazardous material not covered in paragraph (d) or (e)(1) of this 
section.
    (f) Minimum safety features. In addition to the construction and 
design safety features required, each truck must have at least the 
following minimum safety features:

[[Page 657]]

    (1) The truck must be equipped with a warning horn, whistle, gong, 
or other device that may be heard clearly above normal shipboard noises.
    (2) When the truck operation may expose the operator to danger from 
a falling object, the truck must be equipped with a driver's overhead 
guard. When the overall height of the truck with forks in the lowered 
position is limited by head room the overhead guard may be omitted. This 
overhead guard is only intended to offer protection from impact of small 
packages, boxes, bagged material, or similar hazards.
    (3) A forklift truck used to handle small objects or unstable loads 
must be equipped with a load backrest extension having height, width, 
and strength sufficient to prevent any load, or part of it, from falling 
toward the mast when the mast is in a position of maximum backward tilt. 
The load backrest extension must be constructed in a manner that does 
not interfere with good visibility.
    (4) The forks on a fork lift truck must be secured to the carriage 
so as to prevent any unintentional lifting of the toe which could create 
a hazard. The forks may not display permanent deformation when subjected 
to a test load of three times the rated capacity.
    (5) Each fork extension or other attachment must be secured to 
prevent unintentional lifting or displacement on primary forks.
    (6) Tires extending beyond the confines of the truck shall be 
provided with a guard to prevent the tires from throwing particles at 
the operator.
    (7) Unless the steering mechanism is a type that prevents road 
reactions from causing the steering handwheel to spin, a mushroom type 
steering knob must be used to engage the palm of the operator's hand, or 
the steering mechanism must be arranged in some other manner to prevent 
injury. The knob must be mounted within the perimeter of the wheel.
    (8) All steering controls must be confined within the clearnace of 
the truck or guarded so that movement of the controls will not result in 
injury to the operator when passing stanchions, obstructions or other.
    (g) Special operating conditions. (1) A truck may not be used on 
board a vessel unless prior notification of its use is given to the 
master or senior deck officer on board.
    (2) Before a truck is operated on board a vessel, it must be in a 
safe operating condition as determined by the master or senior deck 
officer on board.
    (3) Any truck that emits sparks or flames from the exhaust system 
must immediately be removed from service and may not be returned to 
service until the cause of these sparks or flames has been eliminated.
    (4)-(5)  [Reserved]
    (6) All truck motors must be shut off immediately when a breakage or 
leakage of packages containing flammable liquids or gases, flammable 
solids, oxidizers, or organic peroxides occurs or is discovered.
    (7) The rated capacity of the truck must be posted on the truck at 
all times in a conspicuous place. This capacity may not be exceeded.
    (8) At least one Coast Guard approved marine type size 1 Type B, or 
UL approved 5BC portable fire extinguisher, or its approved equivalent, 
must be affixed to the truck in a readily accessible position or must be 
kept in close proximity, available for immediate use.
    (9) The vessel's fire fighting equipment, both fixed (where 
installed) and portable, must be kept ready for immediate use in the 
vicinity of the space being worked.
    (h) Refueling. (1) A truck using gasoline as fuel may not be 
refueled in the hold or on the weather deck of a vessel unless a 
portable non-spilling fuel handling system of not over five gallons 
capacity is used. Gasoline may not be transferred to a portable non-
spilling fuel handling device on board the vessel.
    (2) A truck using liquefied petroleum gas as fuel may not be 
refueled in the hold or on the weather deck of a vessel unless it is 
fitted with a removable tank and the hand-operated shutoff valve of the 
depleted tank is closed. In addition, the motor must be run until it 
stalls from lack of fuel and then the hand-operated shut off valve 
closed before the quick disconnect fitting to the fuel tank is 
disconnected.
    (3) A truck using diesel oil as fuel may not be refueled on the 
weather

[[Page 658]]

deck or in the hold of a vessel unless a portable container of not over 
a five gallon capacity is used. A truck may be refueled or a portable 
container may be refilled from a larger container of diesel fuel on the 
weather deck of a vessel if a suitable pump is used for the transfer 
operation and a drip pan of adequate size is used to prevent any 
dripping of fuel on the deck.
    (4) Refueling must be performed under the direct supervision of an 
experienced and responsible person specifically designated for this duty 
by the person in charge of the loading or unloading of the vessel.
    (5) Refueling may not be undertaken with less than two persons 
specifically assigned and present for the complete operation, at least 
one of whom must be experienced in using the portable fire extinguishers 
required in the fuel area.
    (6) At least one Coast Guard approved marine type size 1 Type B or 
UL approved 5BC portable fire extinguisher or its approved equivalent, 
must be provided in the fueling area. This is in addition to the 
extinguisher required by paragraph (g)(8) of this section.
    (7) The location for refueling trucks must be designated by the 
master or senior deck officer on board the vessel. ``NO SMOKING'' signs 
must be conspicuously posted in the area.
    (8) The location designated for refueling must be adequately 
ventilated to insure against accumulation of any hazardous concentration 
of vapors. When a truck is being refueled, the ventilation requirements 
of Sec. 176.79 apply.
    (9) Before any truck in a hold is refueled or before any fuel 
handling device or unmounted liquefied petroleum gas cylinder is placed 
in a hold, the motors of all trucks in the same hold must be stopped.
    (10) All fuel handling devices and unmounted liquefied petroleum gas 
containers must be removed from a hold before any truck motor is started 
and the trucks are placed in operation in that hold.
    (i) Replacing batteries. Batteries for electrically powered trucks 
and for the ignition systems of internal combustion powered trucks may 
be changed in the hold of a vessel subject to the following conditions:
    (1) Only suitable handling equipment may be employed.
    (2) Adequate precautions must be taken to avoid damage to the 
battery, short circuiting of the battery, and spillage of the 
electrolyte.
    (j) Charging of batteries. Batteries of industrial trucks may be 
recharged in a hold of a vessel subject to the following conditions:
    (1) The batteries must be housed in a suitable, ventilated, portable 
metal container with a suitable outlet at the top for connection of a 
portable air hose, or must be placed directly beneath a suitable outlet 
at the top for connection of a portable air hose. The air hose must be 
permanently connected to an exhaust duct leading to the open deck and 
terminate in a gooseneck or other suitable weather head. If natural 
ventilation is not practicable or adequate, mechanical means of exhaust 
must be employed in conjunction with the duct. The air outlet on the 
battery container must be equipped with an interlock switch so arranged 
that the charging of the battery cannot take place unless the air hose 
is properly connected to the box.
    (2) If mechanical ventilation is used, an additional interlock must 
be provided between the fan and the charging circuit so that the fan 
must be in operation in order to complete the charging circuit for 
operation. It is preferable that this interlock switch be of a 
centrifugal type driven by the fan shaft.
    (3) The hold may not contain any hazardous materials.
    (4) The charging facilities may be part of the truck equipment or 
may be separate from the truck and located inside or outside the cargo 
hold. The power supply or charging circuit (whichever method is used) 
must be connected to the truck by a portable plug connection of the 
break-away type. This portable plug must be so engaged with the truck 
battery charging outlet that any movement of the truck away from the 
charging station will break the connection between the plug and 
receptacle without exposing any live parts to contact with a conducting 
surface or object and without the plug

[[Page 659]]

falling to the deck where it may become subject to damage.
    (5) All unmounted batteries must be suitably protected or removed 
from an area in the hold of the vessel before any truck is operated in 
that area.
    (k) Stowage of power-operated industrial trucks on board a vessel. 
Trucks stowed on board a vessel must meet vessel stowage requirements in 
Sec. 176.905.
    (l) Packaging and stowage of fuel on board a vessel. Division 2.1 
(flammable gas) materials and flammable liquids used as fuel for 
industrial trucks must be packaged and stowed as authorized in 46 CFR 
147.60 or 46 CFR 147.45, respectively.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40687, Sept. 20, 1976; Amdt. 176-30, 55 FR 52689, Dec. 21, 1990; 
Amdt. 176-39, 61 FR 18933, Apr. 29, 1996; Amdt. 176-43, 62 FR 24741, May 
6, 1997]



               Subpart D--General Segregation Requirements



Sec. 176.80  Application.

    (a) This subpart sets forth segregation requirements in addition to 
any segregation requirements set forth elsewhere in this subchapter.
    (b) Hazardous materials in limited quantities when loaded in 
transport vehicles and freight containers, are excepted from the 
segregation requirements of this subpart and any additional segregation 
specified in this subchapter for transportation by vessel.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-3, 42 
FR 57967, Nov. 7, 1977]



Sec. 176.83  Segregation.

    (a) General. (1) This section applies to all cargo spaces on deck 
and under deck on all types of vessels.
    (2) Segregation is obtained by maintaining certain distances between 
incompatible hazardous materials or by requiring the presence of one or 
more steel bulkheads or decks between them or a combination thereof. 
Intervening spaces between such hazardous materials may be filled with 
other cargo which is not incompatible with the hazardous materials.
    (3) In addition to general segregation between classes of hazardous 
materials, there may be a need to segregate a particular material from 
other materials which would contribute to its hazard. Such segregation 
requirements are indicated by code numbers in Column 10B of the 
Sec. 172.101 Table.
    (4) Segregation is not required between hazardous materials of 
different classes which comprise the same substance but vary only in 
their water content (e.g., sodium sulphide in Division 4.2 or Class 8).
    (5) Whenever hazardous materials are stowed together, whether or not 
in a transport unit, the segregation of such hazardous materials from 
others must always be in accordance with the most restrictive 
requirements for any of the hazardous materials concerned.
    (6) When the Sec. 172.101 Table or Sec. 172.402 requires packages to 
bear a subsidiary hazard label or labels, the segregation appropriate to 
the subsidiary hazards must be applied when that segregation is more 
restrictive than that required by the primary hazard. For the purposes 
of this paragraph, the segregation requirements corresponding to an 
explosive subsidiary hazard are--except for organic peroxides which are 
those corresponding to Division 1.3--those for Division 1.4 (Class C 
explosive) materials.
    (7) Where, for the purposes of segregation, terms such as ``away 
from'' a particular hazard class are used in the Sec. 172.101 Table, the 
segregation requirement applies to:
    (i) All hazardous materials within the hazard class; and
    (ii) All hazardous materials for which a secondary hazard label of 
that class is required.
    (8) Notwithstanding paragraphs (a)(6) and (a)(7) of this section, 
hazardous materials of the same class may be stowed together without 
regard to segregation required by secondary hazards if the materials are 
not incompatible.
    (9) Stowage in a shelter-'tween deck cargo space is not considered 
to be ``on deck'' stowage.
    (b) General Segregation Table. The following table sets forth the 
general requirements for segregation between the various classes of 
hazardous materials. The properties of materials within each

[[Page 660]]

class may vary greatly and may require greater segregation than is 
reflected in this table. If the Sec. 172.101 Table sets forth particular 
requirements for segregation, they take precedence over these general 
requirements.

[[Page 661]]



                                     Table Sec.  176.83(b)--General Segregation Requirements for Hazardous Materials                                    
                [Segregation must also take account of a single secondary hazard label, as required by paragraph (a)(6) of this section.]               
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                    1.1                                                                                                                 
              Class                 1.2    1.3    1.4    2.1    2.2    2.3     3     4.1    4.2    4.3    5.1    5.2    6.1    6.2     7      8      9  
                                    1.5           1.6                                                                                                   
--------------------------------------------------------------------------------------------------------------------------------------------------------
Explosives, 1.1, 1.2, 1.5........    (*)    (*)    (*)      4      2      2      4      4      4      4      4      4      2      4      2      4      X
Explosives, 1.3..................    (*)    (*)    (*)      4      2      2      4      3      3      4      4      4      2      4      2      2      X
Explosives, 1.4, 1.6.............    (*)    (*)    (*)      2      1      1      2      2      2      2      2      2      X      4      2      2      X
Flammable gases 2.1..............      4      4      2      X      X      X      2      1      2      X      2      2      X      4      2      1      X
Non-toxic, non-flammable gases                                                                                                                          
 2.2.............................      2      2      1      X      X      X      1      X      1      X      X      1      X      2      1      X      X
Poisonous gases 2.3..............      2      2      1      X      X      X      2      X      2      X      X      2      X      2      1      X      X
Flammable liquids 3..............      4      4      2      2      1      2      X      X      2      1      2      2      X      3      2      X      X
Flammable solids 4.1.............      4      3      2      1      X      X      X      X      1      X      1      2      X      3      2      1      X
Spontaneously combustible                                                                                                                               
 substances 4.2..................      4      3      2      2      1      2      2      1      X      1      2      2      1      3      2      1      X
Substances which are dangerous                                                                                                                          
 when wet 4.3....................      4      4      2      X      X      X      1      X      1      X      2      2      X      2      2      1      X
Oxidizing substances 5.1.........      4      4      2      2      X      X      2      1      2      2      X      2      1      3      1      2      X
Organic peroxides 5.2............      4      4      2      2      1      2      2      2      2      2      2      X      1      3      2      2      X
Poisons 6.1......................      2      2      X      X      X      X      X      X      1      X      1      1      X      1      X      X      X
Infectious substances 6.2........      4      4      4      4      2      2      3      3      3      2      3      3      1      X      3      3      X
Radioactive materials 7..........      2      2      2      2      1      1      2      2      2      2      1      2      X      3      X      2      X
Corrosives 8.....................      4      2      2      1      X      X      X      1      1      1      2      2      X      3      2      X      X
Miscellaneous dangerous                                                                                                                                 
 substances 9....................      X      X      X      X      X      X      X      X      X      X      X      X      X      X      X      X      X
--------------------------------------------------------------------------------------------------------------------------------------------------------
Numbers and symbols relate to the following terms as defined in this section:                                                                           
    1--``Away from.''                                                                                                                                   
    2--``Separated from.''                                                                                                                              
    3--``Separated by a complete compartment or hold from.''                                                                                            
    4--``Separated longitudinally by an intervening complete compartment or hold from.''                                                                
    X--The segregation, if any, is shown in the Sec.  172.101 Table.                                                                                    
    *--See Sec.  176.144 of this part for segregation within Class 1.                                                                                   

[[Page 662]]

                                                                                                                                                        

    (c) Segregation requirements for breakbulk cargo. (1) The 
requirements of this paragraph apply to the segregation of packages 
containing hazardous materials and stowed as breakbulk cargo;
    (2) Definition of the segregation terms:
    (i) Legend:
    (A) Package containing incompatible goods.
    [GRAPHIC] [TIFF OMITTED] TC02MR91.070
    
    (B) Reference package.
    [GRAPHIC] [TIFF OMITTED] TC02MR91.071
    
    (C) Deck resistant to fire and liquid.
    [GRAPHIC] [TIFF OMITTED] TC02MR91.072
    

    Note: Full vertical lines represent transverse bulkheads between 
compartments or holds resistant to fire and liquid.

    (ii) ``Away from'': Effectively segregated so that the incompatible 
materials cannot interact dangerously in the event of an accident but 
may be carried in the same compartment or hold or on deck provided a 
minimum horizontal separation of 3 meters (10 feet) projected vertically 
is obtained.
[GRAPHIC] [TIFF OMITTED] TC02MR91.073

    (iii) ``Separated From'': In different compartments or holds when 
stowed under deck. If the intervening deck is resistant to fire and 
liquid, a vertical separation (i.e., in different compartments accepted 
as equivalent to this segregation. For ``on deck'' stowage, this 
segregation means a separation by a distance of at least 6 meters (20 
feet) horizontally.
[GRAPHIC] [TIFF OMITTED] TC02MR91.091

    (iv) ``Separated by a complete compartment or hold from'': Either a 
vertical or horizontal separation. If the intervening decks are not 
resistant to fire and liquid, then only a longitudinal separation (i.e., 
by a intervening complete compartment or hold) is acceptable. For ``on 
deck'' stowage, this segregation means a separation by a distance of at 
least 12 meters (39 feet) horizontally. The same distance must be 
applied if one package is stowed ``on deck, and the other one in an 
upper compartment.

[[Page 663]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.074


    Note: One of the two decks must be resistant to fire and liquid.

    (v) ``Separated longitudinally by an intervening complete 
compartment or hold from'': Vertical separation alone does not meet this 
requirement. Between a package ``under deck'' and one ``on deck'' a 
minimum distance of 24 meters (79 feet) including a complete compartment 
must be maintained longitudinally. For ``on deck'' stowage, this 
segregation means a separation by a distance of at least 24 meters (79 
feet) longitudinally.
[GRAPHIC] [TIFF OMITTED] TC02MR91.075

    (d) Segregation in transport units: Two hazardous materials for 
which any segregation is required may not be stowed in the same 
transport unit.
    (e) Segregation of hazardous materials stowed as breakbulk cargo 
from those packed in transport units: (1) Hazardous materials stowed as 
breakbulk cargo must be segregated from materials packed in open 
transport units in accordance with paragraph (c) of this section.
    (2) Hazardous materials stowed as breakbulk cargo must be segregated 
from materials packed in closed transport units in accordance with 
paragraph (c) of this section, except that:
    (i) Where ``away from'' is required, no segregation between packages 
and the closed transport units is required; and
    (ii) Where ``separated from'' is required, the segregation between 
the packages and the closed transport units may be the same as for 
``away from''.
    (f) Segregation of containers on board container vessels: (1) This 
paragraph applies to the segregation of freight containers which are 
carried on board container vessels, or on other types of vessels 
provided these cargo spaces are properly fitted for permanent stowage of 
freight containers during transport.
    (2) For container vessels which have cargo spaces used for breakbulk 
cargo or any other method of stowage, the appropriate paragraph of this 
section applies to the relevant cargo space.
    (3) Segregation Table: Table Sec. 176.83(f) sets forth the general 
requirements for segregation between freight containers on board 
container vessels.
    (4) In Table Sec. 176.83(f), a container space means a distance of 
not less than

[[Page 664]]

6 m (20 feet) fore and aft or not less than 2.5 m (8 feet) athwartship.

[[Page 665]]



                                                                                  Table 176.83(f).--Segregation of Containers on Board Container Ships                                                                                  
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                           Vertical                                                                                           Horizontal                                                                
                                 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     Segregation requirement                                                                                               Closed versus closed                     Closed versus open                       Open versus open           
                                     Closed versus    Closed versus open   Open versus open                      -----------------------------------------------------------------------------------------------------------------------
                                        closed                                                                          On deck           Under deck            On deck           Under deck            On deck           Under deck    
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. ``Away from''................  One on top of the   Open on top of      Not in the same     Fore and aft......  No restriction....  No restriction....  No restriction....  No restriction....  One container       One container     
                                   other permitted.    closed permitted.   vertical line        ................    ................    ................    ................    ................   space.              space or one     
                                                        ................   unless segregated    ................    ................    ................    ................    ................    ................   bulkhead.        
                                                        ................   by a deck.           ................    ................    ................    ................    ................  One container       One container     
                                                      Otherwise as for                        Athwartships......  No restriction....  No restriction....  No restriction....  No restriction....   space.              space.           
                                                       open versus open.                                                                                                        ................                                        
                                                                                                                                                                                ................                                        
                                                                                                                                                                                ................                                        
2. ``Separated from''...........  Not in the same     As for open versus  Not in the same     Fore and aft......  One container       One container       One container       One container       One container       One bulkhead.     
                                   vertical line       open.               vertical line        ................   space.              space or one        space.              space or one        space..                              
                                   unless segregated                       unless segregated    ................    ................   bulkhead.            ................   bulkhead.            ................                    
                                   by a deck.                              by a deck.           ................  One container       One container       One container       Two container       Two container       One bulkhead.     
                                                                                              Athwartships......   space.              space.              space.              spaces.             spaces..                             
3. ``Separated by a complete      Not in the same     As for open versus  Not in the same     Fore and aft......  One container       One bulkhead......  One container       One bulkhead......  Two container       Two bulkheads.    
 compartment or hold from''.       vertical line       open.               vertical line        ................   space.               ................   space.               ................   spaces.                              
                                   unless segregated                       unless segregated    ................  Two container         ................  Two container         ................  Three container     Two bulkheads.    
                                   by a deck.                              by a deck.         Athwartships......   spaces.            One bulkhead......   spaces.            One bulkhead......   spaces.                              
                                                                                                ................                                                                                                                        
4. ``Separated longitudinally by  Prohibited........  ..................  ..................  Fore and aft......  Four container      One bulkhead and    Four container      Two bulkheads.....  Four container      Two bulkheads.    
 an intervening complete                                                                        ................   spaces.             four container      spaces.              ................   spaces.                              
 compartment or hold from''.                                                                    ................    ................   spaces*.             ................    ................    ................                    
                                                                                                ................  Prohibited........  Prohibited........  Prohibited........  Prohibited........  Prohibited........  Prohibited.       
                                                                                              Athwartships......                                                                                                                        
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
* Containers not less than 6 meters (20 feet) from intervening bulkhead.                                                                                                                                                                
                                                                                                                                                                                                                                        
Note: All bulkheads and decks must be resistant to fire and liquid.                                                                                                                                                                     

[[Page 666]]

                                                                                                                                                                                                                                        

    (g) Segregation of transport units on board trailerships: (1) The 
requirements of this paragraph apply to the segregation of transport 
units which are carried on board trailerships or in ``roll-on/roll-off'' 
cargo spaces.
    (2) For trailerships which have spaces suitable for breakbulk cargo, 
containers, or any other method of stowage, the appropriate paragraph of 
this section applies to the relevant cargo space.
    (3) Segregation Table. Table Sec. 176.83(g) sets forth the general 
requirements for segregation between transport units on board 
trailerships.

                                  Table 176.83(g)--Segregation of Transport Units on Board Trailerships and Trainships.                                 
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                        
                              --------------------------------------------------------------------------------------------------------------------------
   Segregation requirement                              Closed versus closed                 Closed versus open                 Open versus open        
                                                --------------------------------------------------------------------------------------------------------
                                                      On deck         Under deck          On deck         Under deck        On deck         Under deck  
--------------------------------------------------------------------------------------------------------------------------------------------------------
1. ``Away From''.............  Fore and aft....  No restriction..  No restriction..  No restriction..  No restriction.  No restriction.  At least 3     
                                                                                                                                          meters.       
                               Athwartships....  No restriction..  No restriction..  No restriction..  No restriction.  No restriction.  At least 3     
                                                                                                                                          meters.       
2. ``Separated from''........  Fore and aft....  At least 6        At least 6        At least 6        At least 6       At least 6       At least 12    
                                 ..............   meters.           meters or one     meters.           meters or one    meters.          meters or one 
                                 ..............    ..............   bulkhead.          ..............   bulkhead.       At least 6        bulkhead      
                               Athwartships....  At least 3        At least 3        At least 3        At least 6        meters.         At least 12    
                                                  meters.           meters or one     meters.           meters or one                     meters or one 
                                                                    bulkhead.                           bulkhead.                         bulkhead      
3. ``Separated by a complete   Fore and aft....  At least 12       At least 24       At least 24       At least 24      At least 36      Two decks or   
 compartment or hold from''.     ..............   meters.           meters + deck.    meters.           meters + deck.   meters.          two bulkheads.
                                 ..............    ..............  ................    ..............  ...............    .............                 
                               Athwartships....  At least 12       At least 24       At least 24       At least 24      At least 36      Prohibited.    
                                                  meters.           meters + deck.    meters.           meters + deck.   meters.                        
4. ``Separated longitudinally  Fore and aft....  At least 36       Two bulkheads or  At least 36       At least 48      At least 48      Prohibited.    
 by an intervening complete      ..............   meters.           at least 36       meters.           meters           meters.                        
 compartment or hold from''.     ..............    ..............   meters + two       ..............   including two     .............                 
                                 ..............    ..............   decks.             ..............   bulkheads.        .............                 
                               Athwartships....  Prohibited......  Prohibited......  Prohibited......  Prohibited.....  Prohibited.....  Prohibited.    
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: All bulkheads and decks must be resistant to fire and liquid.                                                                                     

    (h) Segregation on board barge carrying vessels: (1) The 
requirements of this section apply to the segregation in shipborne 
barges as well as to the segregation between shipborne barges carried on 
board vessels specially designed and equipped to carry such barges.
    (2) On barge-carrying vessels which incorporate other stowage spaces 
or any other method of stowage, barges containing hazardous materials 
must be segregated from hazardous materials not stowed in barges as 
prescribed in paragraphs (b) and (j) of this section.
    (i) Segregation in shipborne barges: Hazardous materials transported 
in shipborne barges must be segregated as prescribed in paragraphs (a), 
(b), and (c) of this section.
    (j) Segregation between shipborne barges on barge-carrying vessels: 
(1) When a shipborne barge is loaded with two or more hazardous 
materials with different requirements for segregation, the most 
stringent applicable segregation requirement must be applied.
    (2) ``Away from'' and ``separated from'' require no segregation 
between shipborne barges.
    (3) For barge-carrying vessels with vertical holds, ``Separated by a 
complete compartment or hold from'' means that separate holds are 
required.

[[Page 667]]

On barge-carrying vessels having horizontal barge levels, separate barge 
levels are required and the barges may not be in the same vertical line.
    (4) ``Separated longitudinally by an intervening complete 
compartment or hold from'' means, for barge-carrying vessels with 
vertical holds, that separation by an intervening hold or engine room is 
required. On barge-carrying vessels having horizontal barge levels, 
separate barge levels and a longitudinal separation by at least two 
intervening barge spaces are required.
    (k) Segregation requirements for ferry vessels: A ferry vessel (when 
operating either as a passenger or cargo vessel) that cannot provide the 
separation required in this section may carry incompatible hazardous 
materials in separate transport vehicles if they are stowed to give the 
maximum possible separation.
[Amdt. 176-30, 55 FR 52690, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991; 57 FR 45465, Oct. 1, 1992; Amdt. 176-34, 58 FR 51533, 
Oct. 1, 1993; Amdt. 176-38, 60 FR 49111, Sept. 21, 1995]



Sec. 176.84  Other requirements for stowage and segregation for cargo vessels and passenger vessels.

    (a) General. When Column 10B of the Sec. 172.101 Table refers to a 
numbered or alpha-numeric stowage provision for water shipments, the 
meaning and requirements of that provision are as set forth in this 
section. Terms in quotation marks are defined in Sec. 176.83.
    (b) Table of provisions:

                                                                        
------------------------------------------------------------------------
              Code                              Provisions              
------------------------------------------------------------------------
1...............................  [Reserved]                            
2...............................  Temperature controlled material.      
3...............................  Do not stow with high explosives.     
4...............................  [Reserved]                            
5...............................  [Reserved]                            
6...............................  Emergency temperature material.       
7...............................  [Reserved]                            
8...............................  Glass carboys not permitted on        
                                   passenger vessels.                   
9...............................  Glass carboys not permitted under     
                                   deck.                                
10..............................  Glass bottles not permitted under     
                                   deck.                                
11..............................  Keep away from heat and open flame.   
12..............................  Keep as cool as reasonably            
                                   practicable.                         
13..............................  Keep as dry as reasonably practicable.
14..............................  For metal drums, stowage permitted    
                                   under deck on cargo vessels.         
15..............................  May be stowed in portable magazine or 
                                   metal locker.                        
16..............................  No other cargo may be stowed in the   
                                   same hold with this material.        
17..............................  Segregation same as for flammable     
                                   gases but ``away from'' dangerous    
                                   when wet.                            
18..............................  Prohibited on any vessel carrying     
                                   explosives (except explosives in     
                                   Division 1.4, Compatibility group S).
19..............................  Protect from sparks and open flames.  
20..............................  Segregation same as for corrosives.   
21..............................  Segregation same as for flammable     
                                   liquids.                             
22..............................  Segregation same as for flammable     
                                   liquids if flash point below 61      
                                   deg.C (142  deg.F).                  
23..............................  Segregation same as for flammable     
                                   liquids if flash point between 23    
                                   deg.C (73  deg.F) and 61  deg.C (142 
                                   deg.F).                              
24..............................  Segregation same as for flammable     
                                   solids.                              
25..............................  Shade from radiant heat.              
26..............................  Stow ``away from'' acids.             
27..............................  Stow ``away from'' alkaline compounds.
28..............................  Stow ``away from'' flammable liquids. 
29..............................  Stow ``away from'' ammonium compounds.
30..............................  Stow ``away from'' animal or vegetable
                                   oils.                                
31..............................  Stow ``away from'' combustible        
                                   materials.                           
32..............................  Stow ``away from'' copper, its alloys 
                                   and its salts.                       
33..............................  Stow ``away from'' fluorides.         
34..............................  Stow ``away from'' foodstuffs.        
35..............................  Stow ``away from'' all odor-absorbing 
                                   cargo.                               
36..............................  Stow ``away from'' heavy metals and   
                                   their compounds.                     
37..............................  Stow ``away from'' hydrazine.         
38..............................  Stow ``away from'' all other          
                                   corrosives.                          
39..............................  Stow ``away from'' liquid halogenated 
                                   hydrocarbons.                        
40..............................  Stow ``clear of living quarters''.    
41..............................  Stow ``away from'' mercury and its    
                                   compounds.                           
42..............................  Stow ``away from'' nitric acids and   
                                   perchloric acids not exceeding 50    
                                   percent acid by weight.              
43..............................  Stow ``away from'' organic materials. 
44..............................  Stow ``away from'' oxidizers.         
45..............................  Stow ``away from'' permanganates.     
46..............................  Stow ``away from'' powdered metals.   
47..............................  Stow ``away from'' sodium compounds.  
48..............................  Stow ``away from'' sources of heat.   
49..............................  Stow ``away from'' corrosives.        
50..............................  Stow ``away from'' sources of heat    
                                   where temperatures in excess of 55   
                                   deg.C (131  deg.F) for a period of 24
                                   hours or more will be encountered.   
51..............................  Stow ``separated from'' acetylene.    
52..............................  Stow ``separated from'' acids.        
53..............................  Stow ``separated from'' alkaline      
                                   compounds.                           
54..............................  Stow ``separated from'' animal or     
                                   vegetable oils.                      
55..............................  Stow ``separated from'' ammonia.      
56..............................  Stow ``separated from'' ammonium      
                                   compounds.                           
57..............................  Stow ``separated from'' chlorine.     
58..............................  Stow ``separated from'' cyanides.     
59..............................  Stow ``separated from'' combustible   
                                   materials.                           
60..............................  Stow ``separated from'' chlorates,    
                                   chlorites, hypochlorites, nitrites,  
                                   perchlorates, permanganates, and     
                                   metallic powders.                    
61..............................  Stow ``separated from'' corrosive     
                                   materials.                           
62..............................  Stow ``separated from'' diborane.     
63..............................  Stow ``separated from'' diethylene    
                                   triamine.                            
64..............................  Stow ``separated from'' explosives.   
65..............................  Stow ``separated from'' flammable     
                                   substances.                          
66..............................  Stow ``separated from'' flammable     
                                   solids.                              
67..............................  Stow ``separated from'' halides.      
68..............................  Stow ``separated from'' hydrogen.     
69..............................  Stow ``separated from'' hydrogen      
                                   peroxide.                            
70..............................  Stow ``separated from'' mercury salts.
71..............................  Stow ``separated from'' nitric acid.  

[[Page 668]]

                                                                        
72..............................  Stow ``separated from'' nitrogen      
                                   compounds.                           
73..............................  Stow ``separated from'' chlorates.    
74..............................  Stow ``separated from'' oxidizers.    
75..............................  Stow ``separated from'' permanganates.
76..............................  Stow ``separated by a complete        
                                   compartment or hold from'' organic   
                                   peroxides.                           
77..............................  Stow ``separated longitudinally by a  
                                   complete compartment or hold from''  
                                   explosives.                          
78..............................  Stow ``separated longitudinally by an 
                                   intervening complete compartment or  
                                   hold from'' explosives.              
79..............................  The maximum net quantity in one       
                                   package for this material shipped    
                                   aboard a passenger vessel is limited 
                                   to 22.7 kg (50 pounds).              
80..............................  Toy torpedoes must not be packed with 
                                   other special fireworks.             
81..............................  Under deck stowage permitted only if  
                                   an indicating substance such as      
                                   chloropicrin has been added.         
82..............................  Under deck stowage is permitted only  
                                   if containing not more than 36       
                                   percent by weight of hydrazine.      
83..............................  [Reserved]                            
84..............................  Under deck stowage must be in well-   
                                   ventilated space.                    
85..............................  Under deck stowage must be in         
                                   mechanically ventilated space.       
86..............................  Stow ``separated by a complete        
                                   compartment or hold from'' explosives
                                   Division 1.3.                        
87..............................  Stow ``separated from'' Class 1       
                                   (explosives) except Division 1.4.    
88..............................  Stow ``separated by a complete        
                                   compartment or hold from'' Class 1   
                                   (explosives) except Division 1.4.    
89..............................  Segregation same as for oxidizers.    
90..............................  Stow ``separated from'' radioactive   
                                   materials.                           
91..............................  Stow ``separated from'' flammable     
                                   liquids.                             
92..............................  Stow ``separated from'' powdered      
                                   materials.                           
93..............................  Stow not accessible to unauthorized   
                                   persons on passenger vessels.        
94..............................  Plastic jerricans and plastic drums   
                                   not permitted under deck.            
95..............................  Stow ``separated from'' foodstuffs.   
96..............................  Glass carboys not permitted under deck
                                   on passenger vessels.                
97..............................  Stow ``away from'' azides.            
98..............................  Stow ``away from'' all flammable      
                                   materials.                           
99..............................  Only new metal drums permitted on     
                                   passenger vessels.                   
100.............................  Stow ``away from'' flammable solids.  
101.............................  Stow ``separated from'' iron oxide.   
102.............................  Stow ``separated from'' all odor      
                                   absorbing cargoes.                   
103.............................  Only to be loaded under dry weather   
                                   conditions.                          
104.............................  Stow ``separated from'' bromine.      
105.............................  As approved by the Competent Authority
                                   of the country concerned.            
106.............................  Stow ``separated from'' powdered      
                                   metal.                               
107.............................  Stow ``separated from'' peroxides and 
                                   superoxides.                         
108.............................  The transport temperature should be   
                                   indicated on the tank.               
109.............................  Label as a flammable liquid if flash  
                                   point is 61  deg.C (142  deg.F) or   
                                   below.                               
110.............................  Packaging Group II if concentration   
                                   does not exceed 70 percent acid.     
111.............................  If concentration exceeds 50 percent   
                                   acid, notes 66, 74, 89, and 90 apply.
112.............................  Packaging Group II for concentrations 
                                   not less that 50 percent and         
                                   Packaging Group III for              
                                   concentrations less than 50 percent. 
113.............................  Packaging Group II if concentrations  
                                   does not exceed 60 percent acid.     
114.............................  Corrosive subsidiary risk label       
                                   required unless concentration is less
                                   than 80 percent.                     
115.............................  If packaged in glass or earthenware   
                                   inner packagings in wooden or        
                                   fiberboard outer packagings, the     
                                   maximum quantity on any vessel is 500
                                   kg (equivalent to 450 liters).       
116.............................  In a cargo space capable of being     
                                   opened up in an emergency. The       
                                   possible need to open hatches in case
                                   of fire to provide maximum           
                                   ventilation and to apply water in an 
                                   emergency and the consequent risk to 
                                   the stability of the ship through    
                                   flooding of the cargo space should be
                                   considered before loading.           
117.............................  In a clean cargo space capable of     
                                   being opened up in an emergency. In  
                                   the case of bagged fertilizer in     
                                   freight containers, it is sufficient 
                                   if in the case of an emergency, the  
                                   cargo is accessible through free     
                                   approaches (hatch entries) and       
                                   mechanical ventilation enables the   
                                   master to exhaust any gases or fumes 
                                   resulting from decomposition. The    
                                   possible need to open hatches in case
                                   of fire to provide maximum           
                                   ventilation and to apply water in an 
                                   emergency and the consequent risk to 
                                   the stability of the ship through    
                                   flooding of the cargo space should be
                                   considered before loading.           
118.............................  Stowage--Category D, Category E       
                                   freight containers and pallet boxes  
                                   only. Ventilation may be required.   
                                   The possible need to open hatches in 
                                   a case of fire to provide maximum    
                                   ventilation and to supply water in an
                                   emergency, and the consequent risk to
                                   the stability of the ship through    
                                   flooding of the cargo space, should  
                                   be considered before loading.        
119.............................  Double strip stowage recommended.     
120.............................  Provide good surface and through      
                                   ventilation.                         
121.............................  Packaging group III when the flash    
                                   point of the flammable liquid is 23  
                                   deg.C (73  deg.F) or above.          
122.............................  Stow ``separated from'' infectious    
                                   substances.                          
123.............................  Stow ``away from'' infectious         
                                   substances.                          
M1--M6..........................  [Reserved]                            
------------------------------------------------------------------------

    (c) Provisions for the stowage of Class 1 (explosive) materials: (1) 
Unless otherwise specified in Column 10B of the Sec. 172.101 Table, 
explosive substances and explosive articles must be stowed as follows:
    (i) On deck: In containers or the like.
    (ii) Under deck: Ordinary stowage.
    (2) The following notes in Column 10B of the Sec. 172.101 Table 
apply to the transport of Class 1 (explosive) materials by vessel:

[[Page 669]]



                                                                        
------------------------------------------------------------------------
              Note                               Provision              
------------------------------------------------------------------------
1E..............................  Cargo vessel, on deck, in containers  
                                   or the like.                         
2E..............................  Cargo vessel, on deck, in portable    
                                   magazines.                           
3E..............................  Cargo vessel, on deck, secured to the 
                                   vessel's structure.                  
4E..............................  Cargo vessel, under deck, Magazine,   
                                   Type A.                              
5E..............................  Cargo vessel, under deck, Magazine,   
                                   Type B.                              
6E..............................  Cargo vessel, under deck, Magazine,   
                                   Type C.                              
7E..............................  Cargo vessel, under deck, Ordinary    
                                   Stowage.                             
8E..............................  Cargo vessel, under deck, Special     
                                   Stowage.                             
9E..............................  Passenger vessel, stowage as for cargo
                                   vessel.                              
10E.............................  Magazine, Type B, if in effectively   
                                   sealed dust-tight packages;          
                                   otherwise, Magazine, Type A.         
11E.............................  On-deck portable magazine must be     
                                   steel.                               
12E.............................  Stowage as specified by Competent     
                                   Authority.                           
13E.............................  On deck, in containers not exceeding  
                                   2.5 metric ton gross per container or
                                   group. There may not be more than 2  
                                   such containers or groups; they must 
                                   be separated from each other, and    
                                   from any other explosive substance or
                                   article by at least 9 m (30 feet).   
                                   Containers or groups must be at least
                                   9 m (30 feet) from the bridge or     
                                   accommodation.                       
14E.............................  On deck, in steel portable magazines  
                                   or steel freight containers.         
15E.............................  On-deck, containers must be leakproof.
16E.............................  On deck, in containers or sheeted     
                                   stacks. The gross weight of each     
                                   stack or group of containers may not 
                                   exceed 2.5 metric ton. There may not 
                                   be more than 2 stacks or groups of   
                                   containers; they must be separated   
                                   from each other, and from any other  
                                   explosive substances or articles by  
                                   at least 9 m (30 feet). Stacks or    
                                   containers must be at least 9 m (30  
                                   feet) from the bridge or             
                                   accommodation.                       
17E.............................  On deck stowage is recommended.       
18E.............................  For international shipments, stow in  
                                   the same manner as is required for   
                                   ``cartridges for weapons' inert      
                                   projectile'' UN 0012, Division 1.4S. 
19E.............................  Substances which contain ammonium     
                                   nitrate or other ammonium salts must 
                                   be stowed ``away from'' Explosives,  
                                   Blasting, Type C, UN 0083.           
20E.............................  Stow in accordance with Sec.          
                                   176.84(c)(3) of this subchapter.     
21E.............................  Cargo space ventilation must be       
                                   carefully controlled to avoid        
                                   excessive condensation.              
22E.............................  May not be stowed together with       
                                   explosive substances containing      
                                   ammonium nitrate or other ammonium   
                                   salts.                               
23E.............................  Segregate from other Class 1          
                                   (explosive) materials in the same    
                                   manner as is required for flammable  
                                   liquids.                             
24E.............................  Passenger vessels, on deck or under   
                                   deck, in portable magazines only.    
25E.............................  Passenger vessels, in containers or   
                                   the like, on deck only.              
26E.............................  Cargo vessel, on deck, in containers  
                                   or the like (non-metallic lining is  
                                   necessary if not in sealed dust tight
                                   packages).                           
27E.............................  Cargo vessel, on deck, in containers  
                                   or the like (non-metallic lining is  
                                   necessary).                          
28E.............................  Cargo vessel, when items are          
                                   transported as projectiles or        
                                   cartridges for guns, cannons, or     
                                   mortars, notes 1E and 7E are         
                                   applicable. All other times, notes   
                                   14E, 15E, and 8E are applicable.     
------------------------------------------------------------------------

    (3) Explosive articles designated by special provision ``20E'' in 
Column 10B of the 172.101 Table must be stowed as follows:
    (i) Projectiles for guns, cannon, or mortars:
    (A) On deck: in containers or the like.
    (B) Under deck: ordinary stowage.
    (ii) All other types:
    (A) On deck: in steel portable magazines or steel freight containers 
which are capable of preventing leakage of their contents.
    (B) Under deck: Special stowage.
[Amdt. 176-30, 55 FR 52693, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991; Amdt. 176-43, 62 FR 24742, May 6, 1997]



   Subpart E--Special Requirements for Transport Vehicles Loaded With 
       Hazardous Materials and Transported on Board Ferry Vessels



Sec. 176.88  Application.

    The requirements in this subpart are applicable to transport 
vehicles containing hazardous materials being transported on board ferry 
vessels and are in addition to any prescribed elsewhere in this 
subchapter. Vessels in a service similar to a ferry service, but not 
over a designated ferry route, may be treated as a ferry vessel for the 
purpose of this subpart if approved in writing by the District 
Commander.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-1A, 41 
FR 40690, Sept. 20, 1976]



Sec. 176.89  Control of transport vehicles.

    (a) A transport vehicle containing hazardous materials may be 
transported on board a ferry vessel, subject to the following 
conditions:
    (1) The operator or person in charge of the vehicle shall deliver to 
the vessel's representative a copy of the shipping papers and 
certificate required by Secs. 176.24 and 176.27;

[[Page 670]]

    (2) The vehicle shall be placed at the location indicated by the 
vessel's representative;
    (3) The parking brakes of the vehicle shall be set securely to 
prevent movement;
    (4) The motor of a highway vehicle shall be shut off and not 
restarted until the vessel has completed its voyage and docked;
    (5) All vehicle lights shall be cut off and not relighted until the 
vessel has completed its voyage and docked;
    (6) The operator of a highway vehicle shall remain with the vehicle;
    (7) No repairs or adjustments must be made to the vehicle while it 
is on the vessel;
    (8) No hazardous materials are to be released from the vehicle; and
    (9) Any instructions given by the vessel's representative during the 
voyage, and during ``roll on'' and ``roll off'' operations must be 
observed.
    (b) Smoking by any person in or around a vehicle is prohibited.



Sec. 176.90  Private automobiles.

    A private automobile which is carrying any Class 1 (explosive) 
material (except permitted fireworks or small arms ammunition) may not 
be transported on a passenger-carrying ferry vessel unless the Class 1 
(explosive) material is in compliance with packaging, labeling, marking, 
and certification requirements of this subchapter. Permitted fireworks 
and small arms ammunition may be carried without the required packaging, 
labeling, marking, or certification if they are in tight containers.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-30, 55 
FR 52695, Dec. 21, 1990]



Sec. 176.91  Motorboats.

    A motorboat may be transported on board a ferry vessel with gasoline 
in the tank and two other containers not exceeding 23 L (six gallons) 
capacity each if they are in the motorboat, closed, and in good 
condition.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-30, 55 
FR 52695, Dec. 21, 1990]



Sec. 176.92  Cylinders laden in vehicles.

    Any cylinder of Class 2 (compressed gas) material which is required 
to have a valve protection cap fitted in place may be transported on 
board a ferry vessel without having the valve protection cap in place 
when it is laden in a transport vehicle and is not removed from the 
vehicle while on the vessel.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-30, 55 
FR 52695, Dec. 21, 1990]



Sec. 176.93  Vehicles having refrigerating or heating equipment.

    (a) A transport vehicle fitted with refrigerating or heating 
equipment using a flammable liquid or Division 2.1 (flammable gas) 
material, or diesel oil as fuel, may be transported on a ferry vessel. 
However, the refrigerating or heating equipment may not be operated 
while the vehicle is on the vessel, unless the equipment complies with 
the following requirements:
    (1) The installation is rigidly mounted and free of any movement 
other than normal vibration in operation;
    (2) An easily accessible shutoff control is fitted to the fuel and 
electrical supply of the refrigerating or heating equipment; and
    (3) The fuel storage tank, the fuel lines, the carburetor and any 
other fuel devices are tight and show no signs of leakage.
    (b) If the vehicle operator desires to operate the refrigerating or 
heating equipment while on the vessel and the equipment is not fitted 
with automatic starting and stopping devices, it must be started before 
the vehicle is taken on board. It may continue in operation while the 
vehicle is on the vessel, but if the motor stops it may not be 
restarted.
    (c) In the case of a ferry vessel on a voyage exceeding 30 minutes' 
duration, stowage must be provided for transport vehicles having 
refrigerating or heating equipment operated by internal combustion 
engines which will permit ready diffusion of exhaust gases to the open 
air. Passenger vehicles may not be stowed in a position adjacent to 
vehicles operating internal combustion motors which expose the occupants 
of the passenger vehicles to excessive

[[Page 671]]

concentrations of exhaust fumes from such motors.
    (d) A transport vehicle containing solid carbon dioxide as a 
refrigerant may be transported on a ferry vessel only if it is stowed in 
a well ventilated location.
[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-30, 55 
FR 52695, Dec. 21, 1990]



               Subpart F--Special Requirements for Barges

    Source:  Amdt. 176-8, 44 FR 23228, Apr. 19, 1979, unless otherwise 
noted.



Sec. 176.95  Application.

    The requirements prescribed in this subpart are applicable to the 
transportation of packaged hazardous materials on board barges. The 
requirements prescribed elsewhere in this subchapter for vessels 
similarly apply, except as provided in this subpart, to the 
transportation of packaged hazardous materials on board barges.



Sec. 176.96  Materials of construction.

    Barges used to transport hazardous materials must be constructed of 
steel.
[Amdt. 176-30, 55 FR 52695, Dec. 21, 1990]



Sec. 176.97  Prohibition of dump scows.

    Dump scows are barges having cargo carrying compartments of the 
hopper type and fitted with a bottom dump or a side dump. This type of 
barge is prohibited from the carriage of any class of hazardous 
material.



Sec. 176.98  Stowage of hazardous materials on board barges.

    A material for which ``on deck'' stowage only is required by Column 
(10) of the Hazardous Materials Table (Sec. 172.101 of this subchapter) 
may be stowed ``under deck'' on unmanned barges.
[Amdt. 176-8, 44 FR 23228, Apr. 19, 1979, as amended by Amdt. 176-30, 55 
FR 52695, Dec. 21, 1990]



Sec. 176.99  Permit requirements for certain hazardous materials.

    The permits required by Secs. 176.100 and 176.415 for loading, 
unloading, and handling Divisions 1.1 and 1.2 (Class A and B explosives) 
materials, Division 1.5 (blasting agents) materials, ammonium nitrate 
and certain ammonium nitrate mixtures and fertilizers must be obtained 
before these materials may be loaded on, unloaded from, or handled on 
board a barge or barge-carrying vessel. However, a barge loaded with 
these materials being placed on, removed from, or handled on board a 
barge-carrying vessel is not subject to these permit requirements.
[Amdt. 176-30, 55 FR 52695, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]



   Subpart G--Detailed Requirements for Class 1 (Explosive) Materials

    Source:  Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, unless otherwise 
noted.



Sec. 176.100  Permit for Divisions 1.1 and 1.2 (Classes A and B explosive) materials.

    Before Divisions 1.1 and 1.2 (Classes A and B explosive) materials 
may be discharged from, loaded on, handled or restowed on board a vessel 
at any place in the United States, the carrier must obtain a permit from 
the COTP in accordance with the procedures in 33 CFR 126.19. Exceptions 
to this permit requirement may be authorized by the COTP.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended by Amdt. 176-34, 
58 FR 51533, Oct. 1, 1993]



Sec. 176.102  Supervisory detail.

    (a) Except as provided in paragraph (c) of this section, the COTP 
may assign a USCG supervisory detail to any vessel to supervise the 
loading, handling or unloading of Class 1 (explosive) materials.
    (b) The owner, agent, charterer, master or person in charge of the 
vessel, and all persons engaged in the handling, loading, unloading, and 
stowage of Class 1 (explosive) materials shall obey all orders that are 
given by the officer in charge of the supervisory detail.
    (c) If Class 1 (explosive) materials are loaded onto or unloaded 
from a vessel at a facility operated or controlled by the Department of 
Defense, the Commanding Officer of that facility may

[[Page 672]]

decline the USCG supervisory detail. Whenever the supervisory detail is 
declined, the Commanding Officer of the facility shall ensure compliance 
with the regulations in this part.



Sec. 176.104  Loading and unloading Class 1 (explosive) materials.

    (a) Packages of Class 1 (explosive) materials may not be thrown, 
dropped, rolled, dragged, or slid over each other or over a deck.
    (b) When Class 1 (explosive) materials are stowed in a hold below 
one in which any cargo is being handled, the hatch in the deck dividing 
the two holds must have all covers securely in place.
    (c) Drafts of Class 1 (explosive) materials must be handled in 
accordance with the following:
    (1) A draft may not be raised, lowered, or stopped by sudden 
application of power or brake.
    (2) A draft may not be released by tripping or freeing one side of 
the cargo-handling equipment and tumbling the Class 1 (explosive) 
materials off.
    (3) All drafts, beams, shackles, bridles, slings, and hoods must be 
manually freed before the winch takes control.
    (4) Slings may not be dragged from under a draft by winching except 
for the topmost layer in the hold when power removal is the only 
practical method and when the cargo cannot be toppled.
    (5) Handles or brackets on packages in a draft may not be used for 
slinging purposes.
    (d) A combination woven rope and wire sling or a sling that is 
formed by use of an open hook may not be used in handling Class 1 
(explosive) materials.
    (e) Only a safety hook or a hook that has been closed by wire may be 
used in handling drafts of Class 1 (explosive) materials.
    (f) Wire rope or wire rope assemblies, including splices and 
fittings, used in handling Class 1 (explosive) materials must be 
unpainted and kept bare to permit inspection of their safe working 
condition. A mechanical end fitting (pressed fitting) may be used in 
place of a eye splice, if the efficiency of the mechanical end fitting 
is at least equal to the efficiency of an eye splice prepared as 
prescribed in 29 CFR 1918.51(c)(1).
    (g) Packages of Division 1.1 and 1.2 (Class A and B explosive) 
materials which are not part of a palletized unit must be loaded and 
unloaded from a vessel using a chute or conveyor as described in 
Sec. 176.163, or a mechanical hoist and a pallet, skipboard, tray, or 
pie plate fitted with a cargo net or sideboards.
    (h) Packages of Division 1.1 and 1.2 (Class A and B explosive) 
materials must be loaded or unloaded in accordance with the following:
    (1) A cargo net with a pallet, skipboard, tray, or pie plate, must 
be loaded so that no more than a minimum displacement of packages occurs 
when it is lifted.
    (2) A cargo net must completely encompass the bottom and sides of 
the draft. The mesh of the cargo net must be of a size and strength that 
will prevent a package in the draft from passing through the net.
    (3) When a tray is used in handling packages, no package may extend 
more than one-third its vertical dimension above the sideboard of the 
tray.
    (i) A landing mat must be used when a draft of nonpalletized 
Division 1.1 or 1.2 (Class A and B explosive materials) is deposited on 
deck. The landing mat must have dimensions of at least l m (3 feet) 
wide, 2 m (7 feet) long, and 10 cm (3.9 inches) thick, and be made of 
woven hemp, sisal, or similar fiber, or foam rubber, polyurethane or 
similar resilient material.
    (j) In addition to the other requirements of this section, packages 
of Division 1.1 and 1.2 (Class A and B explosive) materials must be 
handled in accordance with the following:
    (1) Packages may not be loaded or unloaded through a hatch at the 
same time that other cargo is being handled in any hold served by that 
hatch.
    (2) Packages may not be loaded or unloaded from the same hatch by 
using two pieces of cargo equipment unless the equipment is positioned 
at the forward and aft ends of the hatch.
    (3) Packages may not be lifted over any hazardous materials.
    (4) The height of any structure, equipment, or load on a deck over 
which packages must be lifted may not

[[Page 673]]

be higher than the hatch coaming or bulwark, or 1 m (3 feet), whichever 
is greater.
    (k) Unpackaged explosive devices may not be handled by their lifting 
lugs or suspension lugs.
    (l) A chute may not be used when loading or unloading Class 1 
(explosive) materials in compatibility group A or B.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended by Amdt. 176-40, 
61 FR 27175, May 30, 1996]



Sec. 176.108  Supervision of Class 1 (explosive) materials during loading, unloading, handling and stowage.

    (a) During the loading, unloading, handling and stowage of Class 1 
(explosive) materials, a responsible person shall be in constant 
attendance during the entire operation to direct the loading, unloading, 
handling and stowage of Class 1 (explosive) materials, including the 
preparation of the holds. The responsible person must be aware of the 
hazards involved and the steps to be taken in an emergency, and must 
maintain sufficient contact with the master to ensure proper steps are 
taken in an emergency.
    (b) Each person involved in the handling of Class 1 (explosive) 
materials on a vessel shall obey the orders of the responsible person.
    (c) The responsible person must inspect all cargo-handling equipment 
to determine that it is in safe operating condition before it is used to 
handle Class 1 (explosive) materials.

                                 Stowage



Sec. 176.112  Application of stowage provisions.

    The provisions of Secs. 176.116(e), 176,118, and 176.120 of this 
subpart do not apply to Division 1.4 (Class C explosive) materials, 
compatibility group S. Such materials may be stowed together with all 
other Class 1 (explosive) materials except those of compatibility group 
A or L. They must be segregated from other hazardous materials in 
accordance with Table 176.83(b) of this part.



Sec. 176.116  General stowage conditions for Class 1 (explosive) materials.

    (a) Heat and sources of ignition: (1) Class 1 (explosive) materials 
must be stowed in a cool part of the ship and must be kept as cool as 
practicable while on board. Stowage must be well away from all sources 
of heat, including steam pipes, heating coils, sparks, and flame.
    (2) Except where the consignment of Class 1 (explosive) materials 
consists only of explosive articles, the wearing of shoes or boots with 
unprotected metal nails, heels, or tips of any kind is prohibited.
    (b) Wetness: (1) Spaces where Class 1 (explosive) materials are 
stowed below deck must be dry. In the event of the contents of packages 
being affected by water when on board immediate advice must be sought 
from the shippers; pending this advice handling of the packages must be 
avoided.
    (2) Bilges and bilge sections must be examined and any residue of 
previous cargo removed before Class 1 materials (explosive) are loaded 
onto the vessel.
    (c) Security: All compartments, magazines, and transport units 
containing Class 1 (explosive) materials must be locked or suitably 
secured in order to prevent unauthorized access.
    (d) Secure stowage: Class 1 (explosive) materials must be securely 
stowed to prevent movement in transit; where necessary, precautions must 
be taken to prevent cargo sliding down between the frames at the ship's 
sides.
    (e) Separation from accommodation spaces and machinery spaces: (1) 
Class 1 (explosive) materials must be stowed as far away as practicable 
from any accommodation spaces or any machinery space and may not be 
stowed directly above or below such a space. The requirements in 
paragraphs (e)(2) through (e)(4) of this section are minimum 
requirements in addition to the applicable requirements of 46 CFR 
chapter I. Where the requirements of this subpart are less stringent 
than those of 46 CFR chapter I, the 46 CFR chapter I requirements must 
be satisfied for ships to which they are applicable.

[[Page 674]]

    (2) There must be a permanent A Class steel bulkhead between any 
accommodation space and any compartment containing Class 1 (explosive) 
materials. Division 1.1 and 1.2 (Class A and B explosive) materials, 1.3 
(Class B explosive) materials, or 1.5 (blasting agents) materials may 
not be stowed within 3 m (10 feet) of this bulkhead; in the decks 
immediately above or below an accommodation space they must be stowed at 
least 3 m (10 feet) from the line of this bulkhead projected vertically.
    (3) There must be a permanent A Class steel bulkhead between a 
compartment containing Class 1 (explosive) materials and any machinery 
space. Class 1 (explosive) materials, except those in Division 1.4 
(Class C explosive), may not be stowed within 3 m (10 feet) of this 
bulkhead; and in the decks above or below the machinery space they must 
be stowed at least 3 m (10 feet) from the line of this bulkhead 
projected vertically. In addition to this separation, there must be 
insulation to Class A60 standard as defined in 46 CFR 72.05-10(a)(1) if 
the machinery space is one of Category `A' unless the only Class 1 
(explosive) materials carried are in Division 1.4S (Class C explosive).
    (4) Where Class 1 (explosive) materials are stowed away from 
bulkheads bounding any accommodation space or machinery space, the 
intervening space may be filled with cargo that is not readily 
combustible.



Sec. 176.118  Electrical requirement.

    (a) Electrical equipment and cables installed in compartments in 
which Class 1 (explosive) materials are stowed which do not need to be 
energized during the voyage must be isolated from the supply so that no 
part of the circuit within the compartment is energized. The method of 
isolation may be by withdrawal of fuses, opening of switches or circuit 
breakers, or disconnection from bus bars. The means, or access to the 
means, of disconnection/reconnection must be secured by a locked padlock 
under the control of a responsible person.
    (b) Electrical equipment and cables in a cargo space in which Class 
1 (explosive) materials are stowed which are energized during the voyage 
for the safe operation of the ship must meet the requirements of 
subchapter J of 46 CFR chapter I. Before Class 1 (explosive) materials 
are loaded aboard a vessel, all cables must be tested by a skilled 
person to ensure that they are safe and to determine satisfactory 
grounding, insulation resistance, and continuity of the cable cores, 
metal sheathing or armoring.
    (c) All Class 1 (explosive) materials must be stowed in a safe 
position relative to electrical equipment and cables. Additional 
physical protection must be provided where necessary to minimize 
possible damage to the electrical equipment or cables, especially during 
loading and unloading.
    (d) Cable joints in the compartments must be enclosed in metal-clad 
junction boxes.
    (e) All lighting equipment and cables must be of the fixed type, and 
must meet the relevant inspection, test, and installation standards of 
46 CFR chapter I, subchapter J.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended by Amdt. 176-34, 
58 FR 51533, Oct. 1, 1993]



Sec. 176.120  Lightning protection.

    A lightning conductor grounded to the sea must be provided on any 
mast or similar structure on a vessel on which Class 1 (explosive) 
materials are stowed unless effective electrical bonding is provided 
between the sea and the mast or structure from its extremity and 
throughout to the main body of the hull structure. (Steel masts in ships 
of all welded construction comply with this requirement).



Sec. 176.122  Stowage arrangements under deck.

    When stowed under deck, Class 1 (explosive) materials must be in 
conformance with one of the stowage arrangements described in 
Secs. 176.124 through 176.136 of this subpart.



Sec. 176.124  Ordinary stowage.

    (a) Ordinary stowage is authorized for most explosive articles 
carried by vessel. The exceptions are those for which this subpart 
prescribes ``magazine'' or ``special'' stowage.
    (b) Class 1 (explosive) materials requiring ordinary stowage must be

[[Page 675]]

stowed in accordance with Sec. 176.116 of this subpart.



Sec. 176.128  Magazine stowage, general.

    (a) Magazine stowage is sub-divided into three different types of 
magazines designated by the letters A, B, and C. A magazine may be a 
fixed structure in the vessel, a closed freight container, or a portable 
magazine unit. Freight containers, portable magazines, and vehicles must 
be properly secured in position. Magazines may be positioned in any part 
of the vessel conforming to the general stowage conditions for Class 1 
(explosive) materials, except magazines which are fixed structures must 
be constructed in a location in which their doors, where fitted, are 
easily accessible.
    (b) Magazine stowage is required for all explosive substances, 
except ``Explosive Substances, n.o.s.'' in compatibility groups G, L, or 
S. Magazine stowage type A is required for those substances which must 
be kept clear of steelwork. All other explosive substances must be given 
magazine stowage type B, except those in compatibility group A for which 
magazine stowage type C is prescribed.
    (c) Magazine stowage type B is required for Charges, propelling, for 
cannon. UN 0279, UN 0414, and UN 0242, and Charges, supplemental, 
explosive, UN 0600, in compatibility group C or D; and magazine stowage 
type C is required for detonators and similar articles in divisions and 
compatibility group 1.1B and 1.2B (Class A and B explosive).



Sec. 176.130  Magazine stowage Type A.

    (a) In addition to protecting the Class 1 (explosive) materials and 
preventing unauthorized access, magazine stowage type A guards against 
friction between any spilled contents of packages and the vessel's sides 
and bulkheads.
    (b) Class 1 (explosive) materials requiring magazine stowage type A 
must be stowed in a magazine which is tightly sheathed with wood on its 
inner sides and floor.
    (c) When utilized as part of the magazine structure, the vessel's 
sides and bulkheads must be clean, free from rust or scale, and 
protected by battening or sweatboards spaced not more than 150 mm (6 
inches) apart. All stanchions and other unprotected structural members 
must be similarly clean and battened. The underside of the deck above 
the magazine must be clean and free of rust and scale, but need not be 
battened.
    (d) The top of the stow within the magazine must be at least 30 cm 
(12 inches) from the underside of the deck above.
    (e) A type A magazine constructed in the square of a cargo space may 
not be loaded from the top.
    (f) When other Class 1 (explosive) materials are stowed with Class 1 
(explosive) materials for which magazine stowage type A is required, 
they or their packagings may have no exposed external parts made of 
ferrous metal or aluminum alloy.



Sec. 176.132  Magazine stowage Type B.

    (a) Magazine stowage type B is the same as magazine stowage type A 
as prescribed in Sec. 176.130 of this part, except:
    (1) The floor need not be tightly sheathed with wood but must be 
sparred or protected by wooden pallets or dunnage; and
    (2) Battening of the vessel's sides, bulkheads, and stanchions is 
not required.
    (b) A compartment may be used for magazine stowage type B without a 
magazine structure provided that:
    (1) The Class 1 (explosive) materials are stowed on wooden gratings, 
pallets, or dunnage, directly on the deck and not on other cargo;
    (2) Other cargo stowed in the same compartment is not readily 
combustible material; and
    (3) The position of the stowage is such that there is direct access 
to the hatchway.
    (c) Class 1 (explosive) materials and other cargo in the same 
compartment must be secured to eliminate the possibility of significant 
movement. Where an entire deck is used as a magazine, the stowage must 
be so arranged that the Class 1 (explosive) materials stowed therein 
will be removed from the ship before working any cargo in

[[Page 676]]

any decks above or below the space in the same hatch.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]



Sec. 176.133  Magazine stowage Type C.

    The construction requirements for magazine stowage type C are the 
same as for magazine stowage Type B as prescribed in Sec. 176.132 of 
this part, except that the magazine must be located as near as 
practicable to the centerline of the vessel and must not be closer to 
the vessel's side than a distance equal to one-eighth of the vessel's 
beam or 2.5 m (8.2 feet). whichever is less.



Sec. 176.134  Vehicles.

    Closed vehicles may be used to transport Class 1 (explosive) 
materials requiring magazine stowage when carried by vessel if they meet 
the requirements of the appropriate magazine stowage type. See 
Sec. 176.168 of this subpart for additional requirements relating to the 
transport of Class 1 (explosive) materials in vehicles.



Sec. 176.136  Special stowage.

    (a) Special stowage is required for certain articles presenting both 
explosive and chemical hazards, such as smoke or lachrymatory 
(compatibility group G or H), toxic (compatibility group K), or 
substances and articles which present a special risk (compatibility 
group L). Except as permitted in paragraph (c) of this section, Class 1 
(explosive) materials requiring special stowage must be stowed on deck 
unless such stowage is impracticable and the COTP authorizes special 
stowage below deck.
    (b) Class 1 (explosive) materials for which special stowage is 
required must be stowed as far away as practicable from living, 
accommodation, and working areas, and may not be overstowed. Steel 
portable magazines and freight containers in which such Class 1 
(explosive) materials are stowed may not be located closer to the 
vessel's side than a distance equal to one-eighth of the vessel's beam 
or 2.5 m (8.2 feet), whichever is less.
    (c) Explosive articles having UN number, UN 0015, UN 0016, UN 0018, 
UN 0019, UN 0301, or UN 0303 may be given ordinary stowage in a lower 
hold or 'tween deck. Other Class 1 (explosive) materials in 
compatibility groups G and H may be in open stowage out to the ship's 
side on a floodable lower hold or deep tank in such a position that 
other cargo cannot be contaminated by leakage; in all other cases such 
Class 1 (explosive) materials must be stowed in steel portable magazines 
or in freight containers. If a freight container is used for this 
purpose, the floor of the freight container must be leakproof; for 
example, an all-metal container may be used and a fillet of cement or 
other material worked across the bottom of the door opening.
    (d) Class 1 (explosive) materials stowed in one compartment may not 
be of more than one compatibility group, except the COTP may allow Class 
1 (explosive) materials of compatibility groups G and H in separate 
steel portable magazines to be stowed in the same compartment, not less 
than 3 m (10 feet) apart.
    (e) Class 1 (explosive) materials in compatibility groups K and L 
must be stowed in a steel portable magazine regardless of the stowage 
position in the vessel.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991; Amdt. 176-38, 60 FR 49111, Sept. 21, 1995]



Sec. 176.137  Portable magazine.

    (a) Each portable magazine used for the stowage of Class 1 
(explosive) materials on board vessels must meet the following 
requirements:
    (1) It must be weather-tight, constructed of wood or metal lined 
with wood at least 2 cm (0.787 inch) thick, and with a capacity of no 
more than 3.1 cubic m (110 cubic feet).
    (2) All inner surfaces must be smooth and free of any protruding 
nails, screws or other projections.
    (3) If constructed of wood, a portable magazine must be framed of 
nominal 5 cm X 10 cm (2 X 4 inch) lumber, and sheathed with nominal 20 
mm (0.787 inch) thick boards or plywood.
    (4) When constructed of metal, the metal must be not less than 3.2 
mm (0.126 inch) thick.
    (5) Runners, bearers, or skids must be provided to elevate the 
magazine at least 10 cm (3.9 inches) from the deck.

[[Page 677]]

Padeyes, ring bolts, or other suitable means must be provided for 
securing.
    (6) If the portable magazine has a door or hinged cover, the door or 
cover must have a strong hasp and padlock or equally effective means of 
securing.
    (7) The portable magazine must be marked on its top and four sides, 
in letters at least 8 cm (3 inches) high, as follows:

    EXPLOSIVES--HANDLE CAREFULLY--KEEP LIGHTS AND FIRE AWAY.

    (b) A portable magazine which meets the requirements for a type 2 or 
type 3 magazine under 27 CFR part 55 subpart K may be used for the 
stowage of Class 1 (explosive) materials on board vessels.
    (c) A portable magazine with a capacity exceeding 3.1 m\3\, (110 
cubic feet) may be used for the stowage of Class 1 (explosive) materials 
under such construction, handling, and stowage requirements as the COTP 
approves.



Sec. 176.138  Deck stowage.

    (a) Class 1 (explosive) materials stowed on deck must be carried as 
close to the vessel's centerline as practicable.
    (b) Class 1 (explosive) materials may not be stowed within a 
horizontal distance of 6 m (20 feet) from any fire, machinery exhaust, 
galley uptake, locker used for combustible stores, or other potential 
sources of ignition. They must be clear of walkways and cargo working 
areas, fire hydrants, steam pipes, and means of access; away from all 
other facilities necessary for the safe working of the vessel, and not 
less than a horizontal distance of 8 m (26 feet) from the bridge, 
accommodation areas, and lifesaving appliances.
    (c) Where vessels are fitted with container fastening arrangements, 
freight containers containing Class 1 (explosive) materials may be 
overstowed by containers of compatible Class 1 (explosive) materials or 
non-hazardous cargo. Where vessels are not fitted with container 
fastening arrangements, freight containers loaded with Class 1 
(explosive) materials may be stowed only on the bottom tier of the 
stowage.

                               Segregation



Sec. 176.140  Segregation from other classes of hazardous materials.

    (a) Class 1 (explosive) materials must be segregated from other 
packaged hazardous materials in accordance with Sec. 176.83.
    (b) Class 1 (explosive) materials must be segregated from bulk solid 
dangerous cargoes in accordance with the General Introduction to the 
IMDG Code. Notwithstanding Sec. 176.83(b), ammonium nitrate and sodium 
nitrate may be stowed together with blasting explosives, except those 
containing chlorates, provided the mixed stowage is treated as blasting 
explosives (see Sec. 176.410(e)).



Sec. 176.142  Hazardous materials of extreme flammability.

    (a) Except as allowed by paragraph (b) of this section, certain 
hazardous materials of extreme flammability may not be transported in a 
vessel carrying Class 1 (explosive) materials. This prohibition applies 
to the following hazardous materials:

                                                                        
                                                                        
Carbon disulfide.................  UN 1131          Class 3.            
Diethyl zinc.....................  UN 1366          Division 4.2.       
Dimethyl zinc....................  UN 1370          Division 4.2.       
Magnesium alkyls.................  UN 3053          Division 4.2.       
Nickel carbonyl..................  UN 1259          Division 6.1.       
Pyrophoric liquids, n.o.s........  UN 2845          Division 4.2.       
------------------------------------------------------------------------

    (b) The hazardous materials listed in paragraph (a) of this section 
may be transported in a vessel carrying the following Class 1 
(explosive) materials as cargo:
    (1) Division 1.4 (Class C explosive) materials, compatibility group 
S.
    (2) Explosive articles having the following proper shipping names 
and identification numbers (see Column (4) of the Sec. 172.101 Table) if 
designed for lifesaving purposes and their total net explosive mass 
(weight) does not exceed 50 kg (110 lbs) per vessel:
    (i) ARTICLES, PYROTECHNIC: UN Nos. 0428, 0429, 0430, 0431.
    (ii) CARTRIDGES, FLASH: UN Nos. 0049, 0050.
    (iii) CARTRIDGES, SIGNAL: UN Nos. 0054, 0312.
    (iv) SIGNAL DEVICES, HAND: UN No. 0191.

[[Page 678]]

    (v) SIGNALS, DISTRESS: UN Nos. 0194, 0195.
    (vi) SIGNALS, SMOKE: UN Nos. 0196, 0197, 0313.
    (3) Class 1 (explosive) materials in compatibility groups C, D, and 
E if the total net explosive mass (weight) does not exceed 10 kg (22 
pounds) per vessel.
    (4) Explosive articles in compatibility group G, except fireworks 
and Class 1 (explosive) materials requiring special stowage if the total 
net explosive mass (weight) does not exceed 10 kg (22 pounds) per 
vessel.
    (c) When a vessel carrying Class 1 (explosive) materials allowed 
under paragraph (b) of this section also carries a hazardous material of 
extreme flammability, that hazardous material must be stowed in a part 
of the vessel as remote as practicable from the Class 1 (explosive) 
materials.



Sec. 176.144  Segregation of Class 1 (explosive) materials.

    (a) Except as provided in Sec. 176.145 of this subpart, Class 1 
(explosive) materials may be stowed within the same compartment, 
magazine, portable magazine, or transport unit as indicated in Table 
176.144(a).

        Table 176.144(a)--Authorized Mixed Stowage for Explosives       
 [An ``X'' indicates that explosives in the two different compatibility 
 groups reflected by the location of the ``X'' may not be stowed in the 
         same compartment, portable magazine, or transport unit]        
------------------------------------------------------------------------
 Compatibility                                                          
     groups       A    B    C    D    E    F   G   H   J   K   L   N   S
------------------------------------------------------------------------
A                     X    X    X    X    X   X   X   X   X   X   X   X 
B                X         X    X    X    X   X   X   X   X   X   X     
C                X    X                   X   1   X   X   X   X         
D                X    X                   X   1   X   X   X   X         
E                X    X                   X   1   X   X   X   X         
F                X    X    X    X    X        X   X   X   X   X   X     
G                X    X    1    1    1    X       X   X   X   X   X     
H                X    X    X    X    X    X   X       X   X   X   X     
J                X    X    X    X    X    X   X   X       X   X   X     
K                X    X    X    X    X    X   X   X   X       X   X     
L                X    X    X    X    X    X   X   X   X   X   2   X   X 
N                X    X                   X   X   X   X   X   X         
S                X                                            X         
------------------------------------------------------------------------
Notes: 1. Explosive articles in compatibility group G, other than       
  fireworks and those requiring special stowage, may be stowed with     
  articles of compatibility groups C, D, and E, provided no explosive   
  substances are carried in the same compartment, portable magazine or  
  transport unit.                                                       
2. Explosives in compatibility group L may only be stowed in the same   
  compartment, magazine or transport unit with identical explosives     
  within compatibility group L.                                         

    (b) Where Class 1 (explosive) materials of different compatibility 
groups are allowed to be stowed in the same compartment, magazine, 
portable magazine, or transport unit, the stowage arrangements must 
conform to the most stringent requirements for the entire load.
    (c) Where a mixed load of Class 1 (explosive) materials of different 
hazard divisions and/or stowage arrangements is carried within a 
compartment, magazine, or transport unit, the entire load must be 
treated as belonging to the hazard division having the greatest hazard. 
(For example, if a load of Division 1.1 (Class A explosive) materials is 
mixed with Division 1.3 (Class B explosive) materials, the load is 
treated as a Division 1.1 (Class A explosive) material as defined in 
Sec. 173.50(b) of this subchapter and the stowage must conform to the 
most stringent requirements for the entire load).
    (d) If some of the Class 1 (explosive) materials in a stowage 
mixture require magazine stowage, Class 1 (explosive) materials 
requiring ordinary stowage may be stowed in the same magazine. When the 
magazine is used for substances requiring Type A stowage, the other 
Class 1 (explosive) materials stowed therein must have no exposed parts 
of any ferrous metal or aluminum alloy, unless separated by a partition.
    (e) Segregation on deck: When Class 1 (explosive) materials in 
different compatibility groups are carried on deck, they must be stored 
not less than 6 m (20 feet) apart unless they are allowed under Table 
176.144(a) to be stowed in

[[Page 679]]

the same compartment, magazine, or transport unit.
    (f) On a barge used to transfer class 1 (explosive) materials from a 
waterfront facility to a vessel at an explosives anchorage (or from the 
vessel to the water front facility), if compliance with paragraph (e) of 
this section is not practicable, a sandbag barrier at least 0.6 m (2 
feet) in thickness may be substituted for the 6 m (20 feet) separation.



Sec. 176.145  Segregation in single hold vessels.

    (a) On board a vessel having a single cargo hold, Class 1 
(explosive) materials in hazard division/compatibility group 1.1B and 
1.2B may be stowed in the same compartment with substances of 
compatibility group D, provided:
    (1) The net explosive weight of the compatibility group B explosive 
does not exceed 50 kg (110 pounds); and
    (2) The compatibility group B explosive materials are stowed in a 
steel portable magazine that is stowed at least 6 m (20 feet) from the 
compatibility group D substances.
    (b) Division/compatibility group 1.4B (Class C explosive) materials 
may be stowed in the same compartment with substances of compatibility 
group D provided the Class 1 (explosive) materials of different 
compatibility groups are separated by either a distance of at least 6 m 
(20 feet) or by a steel partition.



Sec. 176.146  Segregation from non-hazardous materials.

    (a) Except as required by paragraphs (b) and (c) of this section, 
Class 1 (explosive) materials need not be segregated from other cargo of 
a non-dangerous nature.
    (b) Mail, baggage, and personal and household effects may not be 
stowed in the same compartment as, or in compartments immediately above 
or below, Class 1 (explosive) materials other than those in 
compatibility group S.
    (c) Where Class 1 (explosive) materials are stowed against an 
intervening bulkhead, any mail on the other side of the bulkhead must be 
stowed away from it.
    (d) In order to avoid contamination:
    (1) An explosive substance or article which has a secondary POISON 
hazard label must be stowed ``separated from'' all foodstuffs, except 
when such materials are stowed in separate closed transport units, the 
requirements for ``away from'' segregation apply.
    (2) An explosive substance or article which has a secondary 
CORROSIVE hazard label must be stowed ``away from'' foodstuffs.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]

                Precautions During Loading and Unloading



Sec. 176.148  Artificial lighting.

    Electric lights, except arc lights, are the only form of artificial 
lighting permitted when loading and unloading Class 1 (explosive) 
materials.



Sec. 176.150  Radio and radar.

    (a) Except as provided in paragraph (b) of this section, when Class 
1 (explosive) materials (other than explosive articles in Division 1.4 
[Class C explosive] or any explosive substance) are loaded, unloaded, or 
handled, the responsible person must ensure that all sources of 
electromagnetic radiation such as radio and radar transmitters are 
deenergized by opening the main switches controlling the sources and 
tagging them to warn that the devices are not to be energized until 
loading or unloading has ceased.
    (b) During the loading or unloading of all explosive articles 
(except those in Division 1.4 [Class C explosive]), no radio or radar 
transmitter may be used within 50 m (164 feet) of such articles except 
for VHF transmitters the power output of which does not exceed 25 watts 
and of which no part of the antenna system is within 2 m (7 feet) of the 
Class 1 (explosive) materials.
    (c) Explosive articles which are sensitive to electromagnetic 
radiation from external sources must be stowed at a safe distance from 
the vessel's radio cabin, receiving and transmitting apparatus radio 
antenna or lead-in, and radar installation, with due regard to the 
character of the vessel and the degree of screening-off of the explosive 
articles.

[[Page 680]]



Sec. 176.154  Fueling (bunkering).

    (a) Class 1 (explosive) materials, except those in compatibility 
group S, may not be loaded or unloaded when fueling (bunkering) is in 
progress except with the prior authorization of the COTP, and under 
conditions prescribed by that officer.
    (b) Vessels containing Class 1 (explosive) materials may not be 
fueled (bunkered) with the hatches open unless authorized by the COTP.



Sec. 176.156  Defective packages.

    (a) No leaking, broken, or otherwise defective package containing 
Class 1 (explosive) materials, including packages which have been 
adversely affected by moisture, may be accepted for shipment. The master 
or person in charge of a vessel on which there is a defective package 
containing Class 1 (explosive) materials must seek advice from the 
shipper concerning withdrawal, repair, or replacement. No repair of 
damaged or defective package containing Class 1 (explosive) materials 
may be performed on board a vessel.
    (b) No Class 1 (explosive) material, which for any reason has 
deteriorated or undergone a change of condition that increases the 
hazard attendant upon its conveyance or handling, may be moved in the 
port area, except as directed by the COTP.
    (c) If any package of Class 1 (explosive) materials, or seal of a 
package of Class 1 (explosive) materials, appears to be damaged, that 
package must be set aside for examination and repair or otherwise 
legally disposed of as directed by the shipper.
    (d) If any Class 1 (explosive) materials are spilled or released 
from a package, the responsible person must ensure that an appropriate 
emergency response is undertaken in accordance with the emergency 
response information required under Sec. 172.602 of this subchapter. The 
master of the vessel must report each incident involving spillage or 
release of Class 1 (explosive) materials to the COTP as soon as 
practicable.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]



Sec. 176.160  Protection against weather.

    Any person loading or unloading packages containing Class 1 
(explosive) materials shall take adequate measures to prevent these 
packages from becoming wet.



Sec. 176.162  Security.

    A responsible person must be present at all times when the hatches 
of spaces containing Class 1 (explosive) materials are open. No 
unauthorized person may be permitted to access spaces in which Class 1 
(explosive) materials are stowed. Magazines must be secured against 
unauthorized entry when loading has been completed, or when loading or 
unloading is stopped. Packages containing Class 1 (explosive) materials 
may not be opened on board ship.



Sec. 176.164  Fire precautions and firefighting.

    (a) Matches, lighters, fire, and other ignition sources are 
prohibited on and near any vessel on which Class 1 (explosive) materials 
are being loaded, unloaded, or handled except in places designated by 
the master or the COTP.
    (b) A fire hose of sufficient length to reach every part of the 
loading area with an effective stream of water must be laid and 
connected to the water main, ready for immediate use.
    (c) No repair work may be carried out in a cargo space containing 
Class 1 (explosive) materials other than those of Division 1.4 (Class C 
explosive). No welding, burning, cutting, or riveting operations 
involving the use of fire, flame, spark, or arc-producing equipment may 
be conducted on board except in an emergency; and, if in port, with the 
consent of the COTP.
    (d) Each compartment, including a closed vehicle deck space, which 
contains Class 1 (explosive) materials must be provided with a fixed 
fire extinguishing system. Each adjacent cargo compartment either must 
be protected by a fixed fire extinguishing installation or must be 
accessible for firefighting operations.
    (e) A vessel must have two sets of breathing apparatus and a power-
operated fire pump, which, together with its source of power and sea 
connections, must be located outside the machinery space.

[[Page 681]]

                            Passenger Vessels



Sec. 176.166  Transport of Class 1 (explosive) materials on passenger vessels.

    (a) Only the following Class 1 (explosive) materials may be 
transported as cargo on passenger vessels:
    (1) Division 1.4 (Class C explosive) materials, compatibility group 
S.
    (2) Explosive articles designed for lifesaving purposes as 
identified in Sec. 176.143(b)(2), if the total net explosive mass 
(weight) does not exceed 50 kg (110 pounds).
    (3) Class 1 (explosive) materials in compatibility groups C, D, and 
E, if the total net explosive mass (weight) does not exceed 10 kg (22 
pounds) per vessel.
    (4) Articles in compatibility group G other than those requiring 
special stowage, if the total net explosive mass (weight) does not 
exceed 10 kg (22 pounds) per vessel.
    (5) Articles in compatibility group B, if the total net explosive 
mass (weight) does not exceed 5 kg (11 pounds).
    (b) Class 1 (explosive) materials which may be carried on passenger 
vessels are identified in Column (10) of the Sec. 172.101 Table. They 
must be stowed in accordance with Table 176.166(b).

                                              Table 176.166(b).--Stowage Arrangements in Passenger Vessels                                              
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                       Goods shipped under a specific proper shipping name              
                                                                        --------------------------------------------------------------------------------
         Class/Division          Samples, explosive     Goods, N.O.S.                                  Compatibility group                              
                                                           Class 1      --------------------------------------------------------------------------------
                                                                           A      B      C      D     E     F     G     H     J     K     L     N     S 
--------------------------------------------------------------------------------------------------------------------------------------------------------
1.1............................  d.................  d.................  c....  e....  e....  e...  e...  c...  e...  --..  c...  --..  c...  --..  --  
1.2............................  d.................  d.................  --...  e....  e....  e...  e...  c...  e...  c...  c...  c...  c...  --..  --  
1.3............................  d.................  d.................  --...  --...  e....  e...  --..  c...  e...  c...  c...  c...  c...  --..  --  
1.4............................  d.................  d.................  --...  b....  b....  b...  b...  c...  b...  --..  --..  --..  --..  --..  a   
1.5............................  d.................  d.................  --...  --...  --...  e...  --..  --..  --..  --..  --..  --..  --..  --..  --  
1.6............................  d.................  d.................  --...  --...  --...  --..  --..  --..  --..  --..  --..  --..  --..  e...  --  
--------------------------------------------------------------------------------------------------------------------------------------------------------
a--As for cargo ships, on deck or under deck.                                                                                                           
b--As for cargo ships, on deck or under deck, in portable magazines only.                                                                               
c--Prohibited.                                                                                                                                          
d--As specified by the Associate Administrator for Hazardous Materials Safety, or the competent authority of the country in which the Class 1           
  (explosive) materials are loaded on the vessel.                                                                                                       
e--In containers or the like, on deck only.                                                                                                             

    (c) Notwithstanding the provisions of paragraph (a) of this section, 
a combination of the substances and articles listed in paragraphs (a)(1) 
through (a)(5) of this section may be transported on the same passenger 
vessel provided the total net explosive mass (weight) of the combination 
of Class 1 (explosive) materials carried does not exceed the smallest 
quantity specified for any one of the substances or articles in the 
combination.

                  Transport Units and Shipborne Barges



Sec. 176.168  Transport of Class 1 (explosive) materials in vehicle spaces.

    (a) All transport vehicles and cargo must be properly secured.
    (b) All transport vehicles used for the carriage of Class 1 
(explosive) materials must be structurally serviceable as defined in 
Sec. 176.172(a)(2).
    (c) Vehicles used to transport Class 1 (explosive) materials must 
conform to the requirements in Secs. 177.834 and 177.835 of this 
subchapter.
    (d) Class 1 (explosive) materials which require special stowage must 
be transported in transport vehicles approved for the purpose by the 
Associate Administrator for Hazardous Materials Safety except that Class 
1 (explosive) materials in compatibility group G or H may be carried in 
steel portable magazines or freight containers. Closed transport 
vehicles may be used as magazines; transport vehicles of other types may 
be used to transport Class 1 (explosive) materials which require 
ordinary stowage.
    (e) Class 1 (explosive) materials of different compatibility groups 
may not be stowed in the same vehicle except as allowed in Sec. 176.144 
of this subpart.
    (f) Vehicles containing different Class 1 (explosive) materials 
require no

[[Page 682]]

segregation from each other, except that these materials may be carried 
together under the provisions of Sec. 176.144 of this subchapter. In all 
other instances, the vehicles must be ``separated from'' one another.
    (g) All transport vehicles used for the transport of Class 1 
(explosive) materials must have lashing arrangements for securing the 
vehicle on the ship and preventing the movement of the vehicle on its 
springs during the sea passage.
    (h) Where a portable magazine or closed freight container is carried 
on a chassis, twist locks or other suitable securing arrangements must 
be provided and made secure.



Sec. 176.170  Transport of Class 1 (explosive) materials in freight containers.

    (a) When Class 1 (explosive) materials are stowed in a freight 
container, the freight container, for the purposes of this subpart, may 
be regarded as a magazine but not as a separate compartment.
    (b) Freight containers exceeding 6 m (20 feet) in length may not 
carry more than 5000 kg (11,023 pounds) net explosive weight of 
explosive substances, except explosive substances in Division 1.4.
    (c) Freight containers used to transport Class 1 (explosive) 
materials for which magazine stowage type A is required must have a 
floor consisting of tightly fitted wooden boards, plywood or equivalent 
non-metallic material, and a non-metallic lining.
    (d) Class 1 (explosive) materials of different compatibility groups 
may not be stowed within the same freight container except as allowed in 
Sec. 176.144 of this subpart.
    (e) On vessels, other than specially fitted container ships, freight 
containers containing Class 1 (explosive) materials must be stowed only 
in the lowest tier.
    (f) Freight containers carrying different Class 1 (explosive) 
materials require no segregation from each other, if the provisions of 
Sec. 176.144 of this subpart allow the Class 1 (explosive) materials to 
be carried together in the same compartment. In all other instances, the 
containers must be ``separated from'' one another in accordance with 
Sec. 176.83(f) of this part.
    (g) Freight containers carrying Class 1 (explosive) materials may 
not be handled on board a vessel with fork lift trucks unless approved 
by the COTP. This does not preclude the use of front-loading trucks 
using side-frame lifting equipment.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]



Sec. 176.172  Structural serviceability of freight containers and vehicles carrying Class 1 (explosive) materials on ships.

    (a) A freight container may not be offered for the carriage of Class 
1 (explosive) materials unless the container is structurally serviceable 
as evidenced by a current CSC (International Convention for Safe 
Containers) approval plate and verified by a detailed visual examination 
as follows:
    (1) Before a freight container or transport vehicle is packed with 
Class 1 (explosive) materials, it must be visually examined by the 
shipper to ensure it is structurally serviceable, free of any residue of 
previous cargo, and its interior walls and floors are free from 
protrusions.
    (2) Structurally serviceable means the freight container or the 
vehicle cannot have major defects in its structural components, such as 
top and bottom side rails, top and bottom end rails, door sill and 
header, floor cross members, corner posts, and corner fittings in a 
freight container. Major defects include--
    (i) Dents or bends in the structural members greater than 19 mm 
(0.75 inch) in depth, regardless of length;
    (ii) Cracks or breaks in structural members;
    (iii) More than one splice or an improper splice (such as a lapped 
splice) in top or bottom end rails or door headers;
    (iv) More than two splices in any one top or bottom side rail;
    (v) Any splice in a door sill or corner post;
    (vi) Door hinges and hardware that are seized, twisted, broken, 
missing, or otherwise inoperative;
    (vii) Gaskets and seals that do not seal; or

[[Page 683]]

    (viii) For freight containers, any distortion of the overall 
configuration great enough to prevent proper alignment of handling 
equipment, mounting and securing chassis or vehicle, or insertion into 
ships' cells.
    (3) In addition, deterioration of any component of the freight 
container or vehicle, regardless of the material of construction, such 
as rusted-out metal in sidewalls or disintegrated fiberglass, is 
prohibited. Normal wear, however, including oxidation (rust), slight 
dents and scratches, and other damage that does not affect 
serviceability or the weather-tight integrity of the units, is not 
prohibited.
    (b) As used in paragraph (a) of this section, splice means any 
repair of a freight container main structural member which replaces 
material, except complete replacement of the member.
    (c) All shipments of Class 1 (explosive) materials except those in 
Division 1.4 (Class C explosive) must be accompanied by a statement, 
which may appear on the shipping paper, certifying that the freight 
container or the vehicle is structurally serviceable as defined in 
paragraph (a)(2) of this section.



Sec. 176.174  Transport of Class 1 (explosive) materials in shipborne barges.

    (a) Fixed magazines may be built within a shipboard barge. Portable 
magazines and freight containers may be used as magazines with a barge.
    (b) Shipborne barges may be used for the carriage of all types of 
Class 1 (explosive) materials. When carrying Class 1 (explosive) 
materials requiring special stowage, the following requirements apply:
    (1) Class 1 (explosive) materials in compatibility group G or H must 
be stowed in steel portable magazines or freight containers.
    (2) Class 1 (explosive) materials in compatibility group K or L must 
be stowed in steel portable magazines.
    (c) Class 1 (explosive) materials of different compatibility groups 
may not be stowed within the same shipborne barge unless under 
Sec. 176.144(b) of this subpart they are authorized to be stowed in the 
same compartment.

             Handling Class 1 (Explosive) Materials in Port



Sec. 176.176  Signals.

    When Class 1 (explosive) materials are being loaded, handled, or 
unloaded on a vessel, the vessel must exhibit the following signals:
    (a) By day, flag ``B'' (Bravo) of the international code of signals; 
and
    (b) By night, an all-round fixed red light.



Sec. 176.178  Mooring lines.

    (a) All lines used in mooring the vessel must be of sufficient 
strength, type, and number for the size of the vessel and local 
conditions.
    (b) While the vessel is moored or anchored in a port area, towing 
wires of adequate size and length must be properly secured to mooring 
bits at the bow and stern ready for immediate use with the towing eyes 
passed outboard and kept at about water level.
    (c) The mooring arrangements must be such that the vessel can be 
released quickly in an emergency.



Sec. 176.180  Watchkeeping.

    Whenever Class 1 (explosive) materials are on board a vessel in 
port, there must be sufficient crew on board to maintain a proper watch 
and to operate the propulsion and firefighting equipment in case of an 
emergency.



Sec. 176.182  Conditions for handling on board ship.

    (a) Weather conditions. Class 1 (explosive) materials may not be 
handled in weather conditions which may seriously increase the hazards 
presented by the Class 1 (explosive) materials. During electrical 
storms, cargo operations must be halted and all hatches containing Class 
1 (explosive) materials must be closed.
    (b) Darkness. Class 1 (explosive) materials may not be handled on 
board a vessel during the hours of darkness unless prior consent has 
been obtained from the COTP.
    (c) Lighting. The area where Class 1 (explosive) materials are 
handled, or where preparations are being made to handle Class 1 
(explosive) materials, must be illuminated with lighting that

[[Page 684]]

is sufficient to safely perform the handling operation.
    (d) Protective equipment. (1) A sufficient quantity of appropriate 
protective equipment must be provided for the personnel involved in 
handling Class 1 (explosive) materials.
    (2) The protective equipment must provide adequate protection 
against the hazards specific to the Class 1 (explosive) materials 
handled.
    (e) Intoxicated persons. No person under the influence of alcohol or 
drugs to such an extent that the person's judgment or behavior is 
impaired may participate in any operation involving the handling of 
Class 1 (explosive) materials. The master of the vessel must keep any 
such person clear of any areas where Class 1 (explosive) materials are 
being handled.
    (f) Smoking. (1) Smoking is prohibited on the vessel while Class 1 
(explosive) materials are being handled or stowed except in places 
designated by the master of the vessel.
    (2) Conspicuous notices prohibiting smoking must be posted and 
clearly visible at all locations where Class 1 (explosive) materials are 
handled or stored.
    (g) All hatches and cargo ports opening into a compartment in which 
Class 1 (explosive) materials are stowed must be kept closed except 
during loading and unloading of the compartment. After loading, hatches 
must be securely closed.



Sec. 176.184  Class 1 (explosive) materials of Compatibility Group L.

    Class 1 (explosive) materials in compatibility group L may not be 
handled in a port area without the special permission of, and subject to 
any special precautions required by, the COTP.



Sec. 176.190  Departure of vessel.

    When loading of Class 1 (explosive) materials is completed, the 
vessel must depart from the port area as soon as is reasonably 
practicable.



Sec. 176.192  Cargo handling equipment for freight containers carrying Class 1 (explosive) materials.

    (a) Except in an emergency, only cargo handling equipment that has 
been specifically designed or modified for the handling of freight 
containers may be used to load, unload, or handle freight containers 
containing Division 1.1 or 1.2 (Class A and B explosive) materials.
    (b) The gross weight of a freight container containing Class 1 
(explosive) materials may not exceed the safe working load of the cargo 
handling equipment by which it is handled.

                            Magazine Vessels



Sec. 176.194  Stowage of Class 1 (explosive) materials on magazine vessels.

    (a) General. The requirements of this section are applicable to 
magazine vessels and are in addition to any other requirements in this 
subchapter.
    (b) Type vessel authorized. A single deck vessel with or without a 
house on deck is the only type vessel that may be used as a magazine 
vessel. A magazine vessel may not be moved while Class 1 (explosive) 
materials are on board.
    (c) Location of explosives. Division 1.1, 1.2, or 1.3 (Class A and B 
explosive) materials, in excess of 2268 kg (5000 pounds), stored in any 
magazine vessel must be stowed below deck. No Class 1 (explosive) 
materials may be stowed on deck unless the vessel is fitted with a deck 
house having a stowage area which meets the requirements in this subpart 
for the stowage of Class 1 (explosive) materials. Detonators, detonator 
assemblies and boosters with detonators, Division 1.1 (Class A 
explosive) may not be stored on the same magazine vessel with other 
Division 1.1, 1.2. and 1.3 (Class A or B explosive) materials.
    (d) Class 1 (explosive) materials storage spaces. Any compartment on 
a magazine vessel used for the stowage of Class 1 (explosive) materials 
must be completely sealed with wood so as to provide a smooth interior 
surface. Each metal stanchion in the compartment must be boxed in the 
same manner. An overhead ceiling is not required when the overdeck is 
weather tight. All nail and bolt heads must be countersunk and any 
exposed metal must be covered with wood.
    (e) Initiating explosives, detonators and boosters with detonators. 
No explosive substance in Division 1.1, compatibility

[[Page 685]]

group A may be stowed in the same compartment with any other Class 1 
(explosive) materials when there are explosive substances in Division 
1.1 or 1.2 (Class A explosive) on the same magazine vessel. Detonators, 
detonator assemblies and boosters with detonators must be stowed at 
least 8 m (26 feet) from any bulkhead forming a boundary of a 
compartment containing any other Class 1 (explosive) materials.
    (f) Dry storage spaces. A magazine vessel having a dry storage space 
capable of being used for any purpose whatsoever must have a cofferdam 
at least 61 cm (24 inches) wide fitted between the dry storage space and 
each adjacent compartment containing Class 1 (explosive) materials. The 
cofferdam must be constructed of wood or steel, formed by two tight 
athwartship bulkheads extending from the skin of the vessel to the 
overdeck. If the cofferdam extends to the weather deck. a watertight 
hatch must be fitted in the deck to provide access to the cofferdam.
    (g) Lighting. Non-sparking, battery-powered, self-contained electric 
lanterns or non-sparking hand flashlights are the only means of 
artificial light authorized.
    (h) Living quarters. Living quarters must be fitted on the inside 
with a non-combustible material approved by the Commandant, USCG. 
Bracketed ship's lamps are the only lighting fixtures authorized to be 
used in the living quarters. Any stove used for heating or cooking must 
be securely fastened and may not be mounted closer than 15 cm (5.9 
inches) to the deck or sides of the house. Any smoke pipe for the stove 
which passes through the roof of the house must be kept at least 8 cm (3 
inches) away from any woodwork. Each smoke pipe must be protected by a 
layer of non-combustible material approved by the Commandant, USCG, an 
air space of at least 2.54 cm (1 inch), and a metal collar of at least 
1.5 mm (0.059 inch) sheet secured only on the weather side of the roof. 
There may be no opening from any living quarters into any stowage 
compartment.
    (i) Storage of other hazardous materials. Magazine vessels having 
Class 1 (explosive) materials on board may not be used for the storage 
of any other hazardous material.
    (j) Magazine vessel's stores. Hazardous materials used as stores on 
board any magazine vessel must comply with the requirements of 46 CFR 
part 147.
    (k) Matches. Safety matches requiring a prepared surface for 
ignition are the only type of matches authorized to be possessed or used 
on board a magazine vessel. They must be kept in a metal box or can with 
a metal cover and stored in the custodian's living quarters.
    (l) Firearms. Firearms and ammunition (other than cargo) are not 
permitted on board a magazine vessel.
    (m) Fire extinguishing equipment. No Class 1 (explosive) materials 
may be loaded or stowed in, unloaded from, or handled on any magazine 
vessel unless four fire extinguishers that meet the requirements for 
Type A Size II or Type B Size III in 46 CFR part 95, subpart 95.50 are 
near and accessible to the magazines.
    (n) Supervision. A magazine vessel containing Class 1 (explosive) 
materials must be continuously attended by a custodian employed for that 
purpose by the vessel's owner.
    (o) Unauthorized persons on magazine vessels. The custodian of a 
magazine vessel shall prevent unauthorized persons from coming on board 
unless it is necessary to abate a hazard to human life or a substantial 
hazard to property.
    (p) Repacking of Class 1 (explosive) materials on board. No Class 1 
(explosive) materials may be repacked on board a magazine vessel. Broken 
or damaged packages must be handled in accordance with the requirements 
of Sec. 176.156. Packages requiring an emergency response must be 
handled in accordance with the emergency response information required 
under Sec. 172.602 of this subchapter.
    (q) Work boat. Each magazine vessel must be equipped with a work 
boat.
    (r) Life preservers. One approved personal flotation device must be 
available for each person employed on a magazine vessel.
    (s) Fenders. Each magazine vessel must be fitted with fenders in 
sufficient number and size to prevent any

[[Page 686]]

vessel tieing up alongside from coming in contact with the hull.
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended by Amdt. 176-41, 
61 FR 51339, Oct. 1, 1996]



 Subpart H--Detailed Requirements for Class 2 (Compressed Gas) Materials

    Source:  Amdt. 176-30, 55 FR 52704, Dec. 21, 1990, unless otherwise 
noted.



Sec. 176.200  General stowage requirements.

    (a) Each package of Class 2 (compressed gas) material being 
transported by vessel must be prevented from making direct contact with 
the vessel's deck, side, or bulwark by dunnage, shoring, or other 
effective means.
    (b) When cylinders of Class 2 (compressed gas) materials being 
transported by vessel are stowed in a horizontal position, each tier 
must be stowed in the cantlines of the tier below it, and the valves on 
cylinders in adjacent tiers must be at alternate ends of the stow. Each 
tier may be stepped back and the ends alternated in order to clear the 
flange. Lashing must be provided to prevent any movement.
    (c) When cylinders of Class 2 (compressed gas) materials being 
transported by vessel are stowed in a vertical position they must be 
stowed upright in a block and cribbed or boxed in with suitable dunnage. 
The box or crib must be dunnaged at least 10 cm (3.9 inches) off any 
metal deck. The cylinders in the box or crib must be braced to prevent 
any movement. The box or crib must be securely chocked and lashed to 
prevent any movement.
    (d) Any package containing Division 2.3 (poison gas) materials must 
be stowed separate from all foodstuffs.
    (e) Class 2 (compressed gas) materials may not be stowed ``on deck'' 
over a hold or compartment containing coal.
    (f) Class 2 (compressed gas) material must be kept as cool as 
practicable and be stowed away from all sources of heat and ignition.



Sec. 176.205  Under deck stowage requirements.

    (a) When a Class 2 (compressed gas) material is stowed below deck, 
it must be stowed in a mechanically ventilated cargo space with no 
source of artificial heat and clear of living quarters. No bulkhead or 
deck of that hold or compartment may be a common boundary with any 
boiler room, engine room, coal bunker, galley or boiler room uptake.
    (b) When Division 2.1 (flammable gas) materials are stowed below 
deck, they must be stowed in a hold or compartment which complies with 
paragraph (a) of this section and the following requirements:
    (1) Each hold or compartment must be ventilated.
    (2) Each hold or compartment must be equipped with an overhead water 
sprinkler system or fixed fire extinguishing system.
    (3) Each electrical power line in the hold or compartment must be 
protected by a strong metal covering to prevent crushing by cargo being 
stowed against it.
    (4) Except when fitted with electrical fixtures of the explosion-
proof type, each electrical circuit serving the hold or compartment must 
be disconnected from all sources of power. No circuit may be energized 
until the Division 2.1 (flammable gas) cargo and any vapors have been 
removed from the hold or compartment. Explosion-proof portable lighting 
may be used if the source of power is from electrical outlets outside 
the hold or compartment and above the weather deck.
    (5) Any opening in a common bulkhead of an adjacent hold or 
compartment must be securely closed off and made gas-tight, unless the 
adjacent hold or compartment is also used for the stowage of Division 
2.1 (flammable gas) materials.
    (6) Full and efficient hatch covers must be used. Tarpaulins, if 
fitted, must be protected by dunnaging before overstowing with any 
cargo. Each tarpaulin must be in one piece and free of rents, tears, and 
holes.
    (7) A fire screen must be fitted at the weather end of each vent 
duct leading from the hold or compartment. The fire screen must 
completely cover the open

[[Page 687]]

area. It must consist of two layers of corrosion-resistant metal wire of 
20 x 20 mesh or finer, spaced not less than 1 cm (0.4 inch) or more than 
4 cm (1.6 inches) apart. The screen may be removable if means for 
securing it in place when in service are provided.
    (8) The hold or compartment may not be fitted with any gooseneck 
type vent trunk head.
    (9) Any electrical apparatus located in the hold or compartment must 
be capable of being disconnected from its power source by a positive 
means located outside the hold or compartment.
[Amdt. 176-30, 55 FR 52704, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]



Sec. 176.210  On deck stowage requirements.

    Cylinders of Class 2 (compressed gas) materials being transported by 
vessel must be protected from radiant heat which, including the direct 
rays of the sun by structural erections or awnings. A tarpaulin covering 
the cylinders is not acceptable if it comes in contact with them.



Sec. 176.220  Smoking or open flame and posting of warning signs.

    (a) Smoking or the use of open flame is prohibited in any hold or 
compartment containing a Division 2.1 (flammable gas) material, near any 
Division 2.1 (flammable gas) material stowed on deck, or near any 
ventilator leading to a hold containing this material.
    (b) A sign carrying the legend:

                                                                        
                                                                        
                                                                        
                            FLAMMABLE VAPORS                            
                        KEEP LIGHTS AND FIRE AWAY                       
                               NO SMOKING                               
------------------------------------------------------------------------


must be conspicuously posted at each approach to an ``on deck'' Division 
2.1 (flammable gas) material stowage area and near each cargo hold 
ventilator leading to a hold containing this material. The sign must be 
painted on a white background using red letters. The letters may not be 
less than 8 cm (3 inches) high.



Sec. 176.225  Stowage of chlorine.

    Chlorine (UN 1017) must be stowed separate from copper or brass leaf 
sheets and from finely divided organic material.



Sec. 176.230  Stowage of Division 2.1 (flammable gas) materials.

    Division 2.1 (flammable gas) materials transported in Specification 
106A or 110A multi-unit car tanks must be stowed on deck only, and must 
be shaded from radiant heat.



Subpart I--Detailed Requirements for Class 3 (Flammable) and Combustible 
                            Liquid Materials

    Source:  Amdt. 176-30, 55 FR 52705, Dec. 21, 1990, unless otherwise 
noted.



Sec. 176.305  General stowage requirements.

    (a) A Class 3 (flammable) or combustible liquid must be kept as cool 
as reasonably practicable and be stowed away from all sources of heat 
and ignition.
    (b) Except as otherwise provided in Sec. 176.76(g), a package 
containing a Class 3 (flammable) liquid and equipped with a vent or 
safety relief device must be stowed ``on deck'' only.
    (c) The following requirements apply to each hold or compartment in 
which any Class 3 (flammable) or combustible liquids are being 
transported:
    (1) The hold or compartment must be ventilated except that the 
stowage of non-bulk packages of Class 3 (flammable) liquids with a flash 
point above 23  deg.C (73  deg.F) (see 49 CFR 171.8 definitions) may be 
in non-ventilated holds.
    (2) Stowage of a Class 3 (flammable) or combustible liquid within 6 
m (20 feet) of a bulkhead which forms a boundary or deck of a boiler 
room, engine room, coal bunker, galley, or boiler room uptake is not 
permitted. If the amount of the liquid to be stowed in a hold will not 
permit compliance with the requirement for a 6 m (20 foot) separation, 
less separation distance is authorized if at least one of the following 
conditions exists:
    (i) The bulkhead or deck is covered with at least 8 cm (3 inches) of 
insulation on the entire area subject to heat;
    (ii) A temporary wooden bulkhead at least 5 cm (2 inches) thick is 
constructed in the hold at least 8 cm (3 inches) off an engine room or 
15 cm (5.9

[[Page 688]]

inches) off a boiler room bulkhead, covering the entire area of the 
bulkhead that is subject to heat, and the space between the permanent 
bulkhead and the temporary wooden bulkhead is filled with mineral wool 
or equivalent bulk noncombustible insulating material; or
    (iii) A temporary wooden bulkhead is constructed of at least 2.5 cm 
(1 inch) thick tongue and groove sheathing, located 1 m (3 feet) from 
the boiler room or engine room bulkhead, and filled with sand to a 
height of 2 m (7 feet) above the tank top, or, if the cargo compartment 
is located between decks, 1 m (3 feet) of sand.
    (3) Combustible liquids may not be stowed in a hold within 6 m (20 
feet) of a common bulkhead with the engine room unless the means of 
vessel propulsion is internal combustion engines.
    (4) Each cargo opening in a bulkhead of an adjacent hold must be 
securely closed off and made gas-tight, unless the adjacent hold is also 
used for the stowage of a Class 3 (flammable) or combustible liquid.
    (d) In addition to the requirements specified in paragraph (b) of 
this section, the following requirements apply to each hold or 
compartment in which a Class 3 (flammable) liquid is transported:
    (1) Full and effective hatch covers must be used. Tarpaulins, if 
fitted, must be protected by dunnaging before overstowing with any 
cargo. Each tarpaulin must be in one piece and free of rents, tears, and 
holes;
    (2) If Class 3 (flammable) liquids in excess of 1016 kg (2240 
pounds) are stowed under deck in any one hold or compartment, a fire 
screen must be fitted at the weather end of each vent duct leading from 
that hold or compartment. The fire screen must completely cover the open 
area. It must consist of two layers of corrosion-resistant metal wire of 
20 x 20 mesh or finer, spaced not less than 1 cm (0.4 inch) or more than 
4 cm (1.6 inches) apart. The screen may be removable only if means for 
securing it in place when in service are provided;
    (3) Each electrical power line in the hold or compartment must be 
protected by a strong metal covering to prevent crushing by cargo being 
stowed against it;
    (4) Except when fitted with explosion-proof type electrical 
fixtures, each electrical circuit serving the hold or compartment must 
be disconnected from all sources of power from a point outside the hold 
or compartment containing flammable liquids. No circuit may be energized 
until the flammable liquids and any vapors have been removed from the 
hold or compartment. Explosion-proof type portable lighting may be used 
if the source of power is from electrical outlets outside the hold or 
compartment and above the weather deck; and
    (5) A Class 3 (flammable) liquid in excess of 1016 kg (2240 pounds) 
may not be transported in any hold or compartment that is fitted with a 
gooseneck type of vent head.
    (e) On a passenger vessel, each hold or compartment used to 
transport a Class 3 (flammable) liquid must be equipped with an overhead 
water sprinkler system or fixed fire-extinguishing system.
    (f) On a passenger vessel, each hold or compartment used to 
transport Class 3 (flammable) liquids under a passenger space must have 
an overdeck of an A-60 type construction (see 46 CFR 72.05-10(c)(1)) or 
equivalent or have its underside covered with at least 8 cm (3 inches) 
of noncombustible insulation.
    (g) No Class 3 (flammable) liquid in a drum or wooden case, having 
inside packagings of more than 1 L (0.3 gallon) capacity each, may be 
stowed as a beam filler. A wooden barrel, a wooden box or a fiberboard 
box, with any Class 3 (flammable) liquid material in inside packagings 
of not more than 1 L (0.3 gallon) capacity each, may only be stowed as a 
beam filler if it is possible to stow and observe any ``THIS SIDE UP'' 
marking.
[Amdt. 176-30, 55 FR 52705, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]



Sec. 176.315  Fire protection requirements.

    (a) For each 79,500 liters (21,000 U.S. gallons) or part thereof of 
any Class 3 (flammable) or combustible liquid being transported on board 
a vessel in a portable tank, rail tank car, or a motor vehicle cargo 
tank, there must be provided at least one B-V

[[Page 689]]

semiportable foam (152 liter/40 gallon capacity) (see 46 CFR 95.50), dry 
chemical (45.4 kg (100 pounds) minimum capacity) or equivalent fire 
extinguisher, or a fire hose fitted with an approved portable mechanical 
foam nozzle with pick-up tube and two 19 liter (5 gallon) cans of foam 
liquid concentrate. Each foam system must be suitable for use with each 
Class 3 (flammable) or combustible liquid for which it is required. Each 
fire extinguisher must be accessible to the tank it is intended to 
cover.
    (b) The fire hose at each fire hydrant in the vicinity of Class 3 
(flammable) and combustible liquids stowage areas must be fitted with an 
approved combination solid stream and water spray nozzle.
    (c) The pressure must be maintained in the vessel's fire mains 
during the loading and unloading of any Class 3 (flammable) or 
combustible liquids.
    (d) Two 7 kg (15-pound) capacity hand portable dry chemical or two 
portable 10 L (2.6 gallons) foam-type extinguishers must be accessible 
to any packaged Class 3 (flammable) or combustible liquid and suitable 
for use with the lading.
    (e) The requirements of this section do not apply to portable tanks 
and their contents authorized under 46 CFR part 98 or 46 CFR part 64.
[Amdt. 176-30, 55 FR 52705, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991]



Sec. 176.320  Use of hand flashlights.

    Each hand flashlight used on deck near or in any hold or compartment 
containing a Class 3 (flammable) liquid, must be suitable for use in 
hazardous locations where fire or explosion hazards may exist.



Sec. 176.325  Smoking or open flame and posting of warning signs.

    (a) Smoking or the use of open flame is prohibited in any hold or 
compartment containing a Class 3 (flammable) or combustible liquid, near 
any Class 3 (flammable) or combustible liquid stowed on deck, or near 
any ventilator leading to a hold containing such material.
    (b) A sign carrying the legend:

                                                                        
                                                                        
                                                                        
-------------------------------------------------------------------------
                            FLAMMABLE VAPORS                            
                        KEEP LIGHTS AND FIRE AWAY                       
                               NO SMOKING                               
------------------------------------------------------------------------


must be conspicuously posted at each approach to a Class 3 (flammable) 
or combustible liquid stowed ``on deck'' and near each cargo hold 
ventilator leading to a hold or compartment containing this material. 
This sign must be painted on a white background using red letters. The 
letters may not be less than 8 cm (3 inches) high.



Sec. 176.340  Combustible liquids in portable tanks.

    Combustible liquids, having a flash point of 38  deg.C (100  deg.F) 
or higher, may be transported by vessel only in one of the portable 
tanks as specified below:
    (a) Portable tanks authorized in Sec. 173.241 of this subchapter.
    (b) In nonspecification portable tanks, subject to the following 
conditions:
    (1) Each portable tank must conform to a DOT specification 57 
portable tank, except as otherwise provided in this paragraph;
    (2) The rated capacity of the tank may not exceed 4,542 liters 
(1,200 gallons), and the rated gross weight may not exceed 13,608 kg 
(30,000 pounds);
    (3) The vibration test need not be performed;
    (4) When the total surface area of the tank exceeds 14.9 square 
meters (160 square feet), the total emergency venting capacity must be 
determined in accordance with Table I in Sec. 178.345-10 of this 
subchapter;
    (5) ln place of a specification identification marking, the tank 
must be marked, on two sides in letters at least 5 cm (2 inches) high on 
contrasting background: ``FOR COMBUSTIBLE LIQUIDS ONLY'' and ``49 CFR 
176.340''. This latter marking constitutes certification by the person 
offering the combustible liquid materials for transportation that the 
portable tank conforms to this paragraph;
    (6) Each tank must be made of steel;
    (7) The design pressure of the tank must be not less than 62 kPa (9 
psi);
    (8) No pressure relief device may open at less than 34.4 kPa (5 
psi);

[[Page 690]]

    (9) Each tank must be retested and marked at least once every 2 
years in accordance with the requirements applicable to a DOT 
specification 57 portable tank in Sec. 173.32(e) (2), (3), and (4) of 
this subchapter; and
    (10) Each tank must conform to the provisions of Sec. 173.24 of this 
subchapter and paragraphs (g), (h), (i), and (k) of Sec. 173.32 of this 
subchapter.
    (c) Portable tanks approved by the Commandant, USCG (G-MSO).
[Amdt. 176-30, 55 FR 52705, Dec. 21, 1990, as amended by Amdt. 176-41, 
61 FR 51339, Oct. 1, 1996; 62 FR 51561, Oct. 1, 1997]



Subpart J--Detailed Requirements for Class 4 (Flammable Solids), Class 5 
 (Oxidizers and Organic Peroxides), and Division 1.5 (Blasting Agents) 
                                Materials

    Source:  Amdt. 176-30, 55 FR 52706, Dec. 21, 1990, unless otherwise 
noted.



Sec. 176.400  Stowage of Division 1.5 (blasting agents), Class 4 (flammable solids) and Class 5 (oxidizers and organic peroxides) materials.

    (a) Class 4 (flammable solid) material and Division 5.2 (organic 
peroxide) material must be kept as cool as reasonably practicable and be 
stowed away from all sources of heat and ignition.
    (b) Division 5.2 (organic peroxide) material must be stowed away 
from living quarters or access to them. Division 5.2 (organic peroxide) 
material not requiring temperature control should be protected from 
radiant heat, which includes direct rays of the sun, and stowed in a 
cool, well-ventilated area.
    (c) No Division 1.5 (blasting agents) or Class 5 (oxidizers and 
organic peroxides) material being transported by vessel may be stowed in 
the same hold or compartment with any readily combustible material such 
as a combustible liquid, a textile product, or with a finely divided 
substance, such as an organic powder.
    (d) No Division 1.5 (blasting agents) or Class 5 (oxidizers and 
organic peroxides) material being transported by vessel may be stowed in 
a hold or compartment containing sulfur in bulk, or in any hold or 
compartment above, below, or adjacent to one containing sulfur in bulk.



Sec. 176.405  Stowage of charcoal.

    (a) Before stowing charcoal Division 4.2 (flammable solid), UN 1361, 
NA 1361, or UN 1362 on a vessel for transportation, the hold or 
compartment in which it is to be stowed must be swept as clean as 
practicable. All residue of any former cargo, including especially a 
petroleum product, a vegetable or animal oil, nitrate, or sulfur, must 
be removed.
    (b) Charcoal packed in bags and offered for transportation on board 
a vessel in a quantity over 1016 kg (2240 pounds) must be loaded so that 
the bags are laid horizontally and stacked with space for efficient air 
circulation. If the bags are not compactly filled and closed to avoid 
free space within, vertical and horizontal dunnage strips must be laid 
between the bags. Space for ventilating must be maintained near 
bulkheads, the shell of the vessel, the deck, and the overhead. No more 
than 40,600 kg (89,508 pounds) of charcoal may be stowed in a hold or 
compartment when other stowage space is available. If the unavailability 
of hold or compartment space requires the stowage of a larger amount, 
the arrangement of the stow for ventilation must be adjusted to ensure a 
sufficient venting effect.
    (c) Any loose material from bags broken during loading must be 
removed. Broken bags may be repacked or have the closures repaired and 
the repaired bags restowed.
    (d) Charcoal ``screenings'' packed in bags must be stowed to provide 
spaces for air circulation between tiers regardless of the quantity 
stowed.



Sec. 176.410  Division 1.5 (blasting agents) materials, ammonium nitrate and ammonium nitrate mixtures.

    (a) This section prescribes requirements to be observed with respect 
to transportation of each of the following hazardous materials by 
vessel:
    (1) Explosives, blasting, type E, and Explosives, blasting, type B, 
Division 1.5 (blasting agent) compatibility group D, UN 0331 and UN 
0332.
    (2) Ammonium nitrate fertilizer, Division 5.1 (oxidizer), UN 1942.

[[Page 691]]

    (3) Ammonium nitrate fertilizer, Division 5.1 (oxidizer), UN 2068.
    (4) Ammonium nitrate fertilizer, Division 5.1 (oxidizer), UN 2067.
    (5) Ammonium nitrate fertilizer, Division 5.1 (oxidizer), UN 2069 or 
UN 2072.
    (6) Ammonium nitrate fertilizer, Division 5.1 (oxidizer), UN 2070.
    (b) This section does not apply to Ammonium nitrate fertilizer, 
Class 9, UN 2071 or to any non-acidic ammonium nitrate mixed fertilizer 
containing 13 percent or less ammonium nitrate, less than 5 percent 
organic material, and no other oxidizing material, and which does not 
meet the criteria for any other hazard set forth in part 173 of this 
subchapter.
    (c) When Division 1.5 (blasting agents) compatibility group D 
materials, ammonium nitrate, or any of the ammonium nitrate fertilizers 
listed in paragraph (a) of this section are transported by vessel:
    (1) They must be stowed well away from any steam pipe, electric 
circuit, or other source of heat;
    (2) Smoking is prohibited except in designated areas away from the 
material and ``No-Smoking'' signs must be posted in accordance with 
Sec. 176.60;
    (3) Fire hoses must be connected, laid out, and tested before 
loading or unloading commences; and
    (4) A fire watch must be posted in the hold or compartment where the 
material is being loaded or unloaded.
    (d) When any of the hazardous materials listed in paragraph (a) of 
this section is transported in bags by vessel:
    (1) The requirements specified in paragraph (c) of this section must 
be complied with;
    (2) The temperature of the bagged material may not exceed 54 deg.C 
(130 deg.F);
    (3) Minimum dunnage and sweatboards must be used to prevent any 
friction or abrasion of bags, and to allow for the circulation of air 
and access of water in the event of fire;
    (4) The bags must be stowed from side to side, out to the 
sweatboards;
    (5) A space of 46 cm (18 inches) must be provided between any 
transverse bulkhead and the bags;
    (6) The bags must be stowed so as to provide a 46 cm (18 inch) 
athwartship trench along the centerline of the compartment, continuous 
from top to bottom;
    (7) The bags must be stowed so as to provide a 46 cm (18 inch) 
amidship trench running fore and aft from bulkhead to bulkhead;
    (8) The bags may not be stowed less than 46 cm (18 inches) from any 
overhead deck beam;
    (9) The bags must be stowed so as to provide vent flues 36 cm (14 
inches) square at each corner of the hatch continuous from top to 
bottom;
    (10) Trenching must be accomplished by alternating the direction of 
the bags in each tier (bulkheading); and
    (11) The bags must be blocked and braced as necessary to prevent 
shifting of the bagged cargo adjacent to any trench area.
    (e) Notwithstanding Sec. 176.83(b) of this part, ammonium nitrate 
and ammonium nitrate fertilizers classed as Division 5.1 (oxidizers) 
materials, may be stowed in the same hold, compartment, magazine, or 
freight container with Class 1 materials (explosive), except those 
containing chlorates, in accordance with the segregation and separation 
requirements of Sec. 176.144 of this part applying to Explosives, 
blasting, type B, and Explosives, blasting, type E, Division 1.5 
compatibility group D.
    (f) No mixture containing ammonium nitrate and any ingredient which 
would accelerate the decomposition of ammonium nitrate under conditions 
incident to transportation may be transported by vessel.
[Amdt. 176-30, 55 FR 52706, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991; Amdt. 176-34, 58 FR 51533, Oct. 1, 1993; Amdt. 176-38, 60 
FR 49111, Sept. 21, 1995]



Sec. 176.415  Permit requirements for Division 1.5 (blasting agents), ammonium nitrates, and certain ammonium nitrate fertilizers.

    (a) Except as provided in paragraph (b) of this section, before any 
of the following material is loaded on or unloaded from a vessel at any 
waterfront facility, the owner/operator must obtain written permission 
from the nearest COTP:
    (1) Ammonium nitrate UN 1942, ammonium nitrate fertilizers 
containing

[[Page 692]]

more than 60 percent ammonium nitrate, ammonium nitrate fertilizer, 
Division 5.1 (oxidizer) UN 2070, or Division 1.5 (blasting agent) 
compatibility group D materials packaged in a paper bag, burlap bag, or 
other nonrigid combustible packaging, or any rigid packaging with 
combustible inside packagings.
    (2) Any other ammonium nitrate or ammonium nitrate fertilizer not 
listed in Sec. 176.410 (a) or (b) except ammonium nitrate fertilizer, 
Class 9, UN 2071.
    (b) Any of the following may be loaded on or unloaded from a vessel 
at any waterfront facility without a permit:
    (1) Ammonium nitrate fertilizer, Division 5.1 (oxidizer) UN 1942, in 
a rigid packaging with noncombustible inside packaging.
    (2) Ammonium nitrate fertilizer, Division 5.1 (oxidizer) UN 2067, if 
the nearest COTP is notified at least 24 hours in advance of any loading 
or unloading in excess of 454 kg (1,000 pounds).
    (3) Ammonium nitrate fertilizer, n.o.s., Division 5.1 (oxidizer) UN 
2072, containing 40 percent or more fine calcium carbonate or dolomite.
    (4) Non-acidic ammonium nitrate fertilizer, n.o.s., Division 5.1 
(oxidizer) UN 2072, containing less than 5 percent organic material and 
60 percent or less ammonium nitrate.
    (5) Division 1.5 (blasting agents) compatibility group D material in 
a rigid packaging with non-combustible inside packaging.
    (6) Ammonium nitrate fertilizer, Class 9, UN 2071.
    (c) Before a permit may be issued, the following requirements must 
be met in addition to any others the COTP may impose:
    (1) If the material is ammonium nitrate fertilizer, Division 5.1 
(oxidizer), UN2070; or Explosives, blasting, type E, Division 1.5 
(blasting agents) compatibility group D, UN0332 in combustible packaging 
or in a rigid packaging with combustible inside packaging, it must be 
loaded or unloaded at a facility remote from populous areas or high 
value or high hazard industrial facilities so that in the event of fire 
or explosion loss of lives and property may be minimized;
    (2) If the material is an ammonium nitrate fertilizer, Division 5.1 
(oxidizer), UN2070, containing more than 60 percent ammonium nitrate; or 
ammonium nitrate fertilizer, Division 5.1 (oxidizer), UN2070 in rigid 
packagings with combustible inside packagings, it must be loaded or 
unloaded at a facility removed from congested areas or high value or 
high hazard industrial facilities;
    (3) Each facility at which the material is to be loaded or unloaded 
must conform with the requirements of the port security and local 
regulations and must have an abundance of water readily available for 
fire fighting;
    (4) Each facility at which the material is to be loaded or unloaded 
must be located so that each vessel to be loaded or unloaded has an 
unrestricted passage to open water. Each vessel must be moored bow to 
seaward, and must be maintained in a mobile status during loading, 
unloading, or handling operations by the presence of tugs or the 
readiness of engines. Each vessel must have two wire towing hawsers, 
each having an eye spice, lowered to the water's edge, one at the bow 
and the other at the stern; and
    (5) If the material is ammonium nitrate fertilizer, Division 5.1 
(oxidizer), UN2070; an ammonium nitrate fertilizer, Division 5.1 
(oxidizer) containing more than 60 percent ammonium nitrate; or a 
Division 1.5 (blasting agents) compatibility group D material in non-
rigid combustible packaging and loaded in freight containers or 
transport vehicles, it may be loaded or unloaded at a non-isolated 
facility provided that facility is approved by the COTP.
[Amdt. 176-30, 55 FR 52706, Dec. 21, 1990, as amended at 56 FR 66282, 
Dec. 20, 1991; Amdt. 176-35, 59 FR 49134, Sept. 26, 1994]



                          Subpart K--[Reserved]



 Subpart L--Detailed Requirements for Division 2.3 (Poisonous Gas) and 
                   Division 6.1 (Poisonous) Materials

    Source:  Amdt. 176-30, 55 FR 52708, Dec. 21, 1990, unless otherwise 
noted.

[[Page 693]]



Sec. 176.600  General stowage requirement.

    (a) Each package required to have a POISON GAS or POISON label 
thereon being transported on a vessel must be stowed clear of living 
quarters and any ventilation ducts serving living quarters and separate 
from foodstuffs.
    (b)Each package required to have both a POISON GAS label and a 
FLAMMABLE GAS label thereon must be segregated as a Division 2.1 
(flammable gas) material.
    (c) Each package required to have a KEEP AWAY FROM FOOD label must 
be stowed away from foodstuffs.
    (d) Each package of Division 2.3 (poisonous gas) material or 
Division 6.1 (poison) material which also bears a FLAMMABLE LIQUID or 
FLAMMABLE GAS label must be stowed in a mechanically ventilated space, 
kept as cool as reasonably practicable, and be stowed away from all 
sources of heat and ignition.
[Amdt. 176-30, 55 FR 52708, Dec. 21, 1990, as amended at 57 FR 45465, 
Oct. 1, 1992; Amdt. 176-35, 59 FR 49134, Sept. 26, 1994]

    Effective Date Note: By Amdt. 176-42, 62 FR 1236, Jan. 8, 1997, 
Sec. 176.600(a) was revised, effective Oct. 1, 1997. At 62 FR 39398, 
July 22, 1997, the effective date was delayed until Oct. 1, 1998. For 
the convenience of the user the revised text is set forth as follows:

Sec. 176.600  General stowage requirement.

    (a) Each package required to have a POISON GAS, POISON INHALATION 
HAZARD, or POISON label thereon being transported on a vessel must be 
stowed clear of living quarters and any ventilation ducts serving living 
quarters and separate from foodstuffs.

                                * * * * *



Sec. 176.605  Care following leakage or sifting of Division 2.3 (poisonous gas) and Division 6.1 (poisonous) materials.

    A hold or compartment containing a package of a Division 2.3 
(poisonous gas) or Division 6.1 (poisonous) material which has leaked or 
sifted must be thoroughly cleaned and decontaminated after the cargo is 
unloaded and before the hold or compartment is used for the stowage of 
any other cargo.



       Subpart M--Detailed Requirements for Radioactive Materials

    Source:  Amdt. 176-15, 48 FR 10245, Mar. 10, 1983, unless otherwise 
noted.



Sec. 176.700  General stowage requirements.

    (a)  [Reserved]
    (b) A package of radioactive materials which in still air has a 
surface temperature more than 5 deg. C (9 deg. F) above the ambient air 
may not be overstowed with any other cargo. If the package is stowed 
under deck, the hold or compartment in which it is stowed must be 
ventilated.
    (c) Each fissile material, controlled shipment must be stowed in a 
separate hold, compartment, or defined deck area and be separated by a 
distance of at least six meters (20 feet) from all other RADIOACTIVE 
YELLOW-II or YELLOW-III labeled packages.
    (d) For a shipment of radioactive materials requiring supplemental 
operational procedures, the shipper must furnish the master or person in 
charge of the vessel a copy of the necessary operational instructions.
    (e) A person may not remain unnecessarily in a hold, or compartment, 
or in the immediate vicinity of any package on deck, containing 
radioactive materials.
(The information collection requirements in paragraph (d) were approved 
by the Office of Management and Budget under control numbers 2137-0534, 
2137-0535 and 2137-0536)
[Amdt. 176-15, 48 FR 10245, Mar. 10, 1983, as amended by Amdt. 176-15, 
48 FR 31220, July 7, 1983; Amdt. 176-23, 50 FR 41523, Oct. 11, 1985; 
Amdt. 176-37, 60 FR 50333, Sept. 28, 1995]



Sec. 176.704  Requirements relating to transport indexes.

    (a) The sum of the transport indexes for all packages of Class 7 
(radioactive) materials on board a vessel may not exceed the limits 
specified in Table III.
    (b) For packages in freight containers, the radiation level may not 
exceed 2 mSv per hour (200 mrem per hour) at any point on the surface 
and 0.1 mSv per hour (10 mrem per hour) at two meters (6.6 feet) from 
the outside surface of the freight container.

[[Page 694]]

    (c) The limitations specified in Table III do not apply to 
consignments of LSA materials if the packages are marked ``RADIOACTIVE 
LSA'' and no fissile Class 7 (radioactive) materials are included in the 
shipment.
    (d) Each group of fissile packages must be separated from other 
Class 7 (radioactive) material by a distance of at least six meters (20 
feet) at all times.
    (e) The limitations specified in paragraphs (a) through (c) of this 
section do not apply when the entire vessel is reserved or chartered for 
use by a single offeror under exclusive use conditions if--
    (1) The number of fissile packages of Class 7 (radioactive) 
materials aboard the vessel does not exceed the amount authorized in 
Sec. 173.451 through Sec. 173.459 of this subchapter; and
    (2) The entire shipment operation is approved by the Associate 
Administrator for Hazardous Materials Safety in advance.
    (f) Table III is as follows:

[[Page 695]]



                            Table III--Limits for Freight Containers and Conveyances                            
----------------------------------------------------------------------------------------------------------------
                               Limit on total sum of transport indexes in a single freight container or aboard a
                                                                   conveyance                                   
                              ----------------------------------------------------------------------------------
 Type of freight container or          Not under exclusive use                     Under exclusive use          
          conveyance          ----------------------------------------------------------------------------------
                                  Non-fissile                               Non-fissile                         
                                    material        Fissile material          material        Fissile material a
----------------------------------------------------------------------------------------------------------------
Freight container--Small.....  50...............  50..................  N/A................  N/A.               
Freight container--Large.....  50...............  50..................  No limit...........  100 b.             
Vessel c                                                                                             
1. Hold, compartment or                                                                                         
 defined deck area:                                                                                             
    Packages, overpacks,       50...............  50..................  No limit...........  100b.              
     small freight containers.                                                                                  
    Large freight containers.  200d.............  50..................  No limit...........  100b.              
2. Total vessel:                                                                                                
    Packages, etc............  200 d............  200 d...............  No limit e.........  200 e.             
    Large freight containers.  No limit d.......  No limit d..........  No limit...........  No limit d.        
----------------------------------------------------------------------------------------------------------------
a Provided that transport is direct from the consignor to the consignee without any intermediate in-transit     
  storage, where the total TI exceed 50.                                                                        
b In cases in which the total TI is greater than 50, the consignment must be so handled and stowed so that it is
  always separated from any package, overpack, portable tank or freight container carrying Class 7 (radioactive)
  materials by at least 6 meters (20 feet).                                                                     
c For vessels the requirements given in 1 and 2 must be fulfilled.                                              
d Provided that the packages, overpacks, portable tanks or freight containers, as applicable, are stowed so that
  the total sum of the TI's in any group does not exceed 50, and that each group is handled and stowed so that  
  the groups are separate from each other by at least 6 meters (20 feet).                                       
e Packages or overpacks carried in or on a transport vehicle which are offered for transport under the          
  provisions of Sec.  173.441(b) of this subchapter may be transported by vessel provided that they are not     
  removed from the vehicle at anytime while on board the vessel.                                                

[[Page 696]]

                                                                                                                

[Amdt. 176-37, 60 FR 50333, Sept. 28, 1995, as amended by 176-37, 61 FR 
20753, May 8, 1996]



Sec. 176.708  Segregation distance table.

    (a) Table IV applies to the stowage of packages of Class 7 
(radioactive) materials on board a vessel with regard to transport index 
numbers which are shown on the labels of individual packages.
    (b) RADIOACTIVE YELLOW-II or YELLOW-III labeled packages may not be 
stowed any closer to living accommodations, regularly occupied working 
spaces, spaces that may be continually occupied by any person (except 
those spaces exclusively reserved for couriers specifically authorized 
to accompany such packages), or undeveloped film than the distances 
specified in TABLE IV.
    (c) Where only one consignment of a Class 7 (radioactive) material 
is to be loaded on board a vessel under exclusive use conditions, the 
appropriate segregation distance may be established by demonstrating 
that the direct measurement of the radiation level at regularly occupied 
working spaces and living quarters is less than 7.5 microsieverts per 
hour (0.75 mrem per hour).
    (d) More than one consignment may be loaded on board a vessel with 
the appropriate segregation distance established by demonstrating that 
direct measurement of the radiation level at regularly occupied working 
spaces and living quarters is less than 7.5 microSieverts per hour (0.75 
mrem per hour), provided that:
    (1) The vessel has been chartered for the exclusive use of a 
competent person specialized in the carriage of Class 7 (radioactive) 
material; and
    (2) Stowage arrangements have been predetermined for the entire 
voyage, including any Class 7 (radioactive) material to be loaded at 
ports of call enroute.
    (e) The radiation level must be measured by a responsible person 
skilled in the use of monitoring instruments.
    (f) Table IV is as follows:

[[Page 697]]



                                                                                            Table IV                                                                                            
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                              Minimum                                    Minimum distance in feet from undeveloped film and plates                              
                                                            distance in  -----------------------------------------------------------------------------------------------------------------------
                                                             feet from     1 day voyage   2 day voyage   4 day voyage  10 day voyage  20 day voyage  30 day voyage  40 day voyage  50 day voyage
                                                              living     -----------------------------------------------------------------------------------------------------------------------
                                                           accommodation                                                                                                                        
        Sum of transport indexes of the packages           or regularly                                                                                                                         
                                                             occupied                                                                                                                           
                                                           working space                                                                                                                        
                                                         ----------------                                                                                                                       
                                                                                                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                          Cargo thickness in feet (unit density)                                                
                                                                                                                                                                                                
                                                         ---------------------------------------------------------------------------------------------------------------------------------------
  ......................................................     Nil       3  Nil    3    6  Nil    3    6  Nil    3    6  Nil    3    6  Nil    3    6  Nil    3    6  Nil    3    6  Nil    3    6
0.1 to 0.5..............................................       5       X    6    X    X    8    X    X   11    X    X   17    4    X   25    6    X   30    7    X   35    8    X   39    9    X
0.6 to 1................................................       6       X    8    X    X   11    X    X   16    4    X   25    6    X   35    8    X   42   10    X   50   12    X   55   13    X
1.1 to 2................................................       9       X   11    X    X   16    4    X   22    5    X   35    8    X   50   12    X   61   14    X   70   17    X   78   19    X
2.1 to 3................................................      10       X   14    X    X   19    5    X   27    6    X   42   10    X   61   14    X   74   18    X   86   20    X   96   23    X
3.1 to 5................................................      13       X   17    4    X   25    6    X   35    8    X   55   13    X   78   19    X   96   23    X  110   26    X  124   29    7
5.1 to 10...............................................      19       4   25    6    X   35    8    X   50   12    X   78   19    X  110   26    X  135   33    8  155   37    9  175   42   10
10.1 to 20..............................................      26       6   35    8    X   50   12    X   69   17    X  110   26    X  155   37    9  190   46   11  220   53   13  250   59   14
20.1 to 30..............................................      32       8   43   10    X   61   14    X   85   20    X  135   32    8  190   45   11  235   56   13  270   65   16  305   72   17
30.1 to 50..............................................      42      10   55   13    X   78   19    X  110   26    X  175   42   10  245   58   14  300   73   17  350   84   20  390   94   22
50.1 to 100.............................................      59      14   78   19    X  110   26    X  155   37    9  245   59   14  350   82   20  430  105   24  515  118   28  550  130   32
100.1 to 150............................................      72      17   96   23    X  135   32    8  190   46   11  300   72   17  425  100   24  525  125   30  600  145   35  (\7          
                                                                                                                                                                                   \            
                                                                                                                                                                                     )  165   39
150.1 to 200............................................      84      20  110   26    X  155   37    9  200   53   13  350   84   20  490  115   28  600  140   35  (\7                         
                                                                                                                                                                    \                           
                                                                                                                                                                      )  165   40  (\7          
                                                                                                                                                                                   \            
                                                                                                                                                                                     )  190   45
================================================================================================================================================================================================
200.1 to 300............................................     105      24  135   32    X  190   46   11  270   64   15  425  105   25  600  145   35  (\7                                        
                                                                                                                                                     \                                          
                                                                                                                                                       )  180   42  (\7                         
                                                                                                                                                                    \                           
                                                                                                                                                                      )  205   49  (\7          
                                                                                                                                                                                   \            
                                                                                                                                                                                     )  230   55
300.1 to 400............................................     120      28  160   37    9  220   53   13  310   75   18  500  120   28  (\7                                                       
                                                                                                                                      \                                                         
                                                                                                                                        )  165   40  (\7                                        
                                                                                                                                                     \                                          
                                                                                                                                                       )  205   49  (\7                         
                                                                                                                                                                    \                           
                                                                                                                                                                      )  235   57  (\7          
                                                                                                                                                                                   \            
                                                                                                                                                                                     )  265  63 
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Note:                                                                                                                                                                                           
(1) X--indicates that thickness of screening cargo is sufficient without any additional segregation distance.                                                                                   
(2) By using 6 feet of intervening unit density cargo for persons and 10 feet for film and plates, no distance shielding is necessary for any length of voyage specified.                       
(3) Using 1 steel bulkhead or steel deck--multiply segregation distance by 0.8. Using 2 steel bulkheads or steel decks--multiply segregation distance by 0.64.                                  
(4) ``Cargo of Unit Density'' means cargo stowed at a density of 1 ton (long) per 36 cubic feet; where the density is less than this the depth of cargo specified must be increased in          
  proportion.                                                                                                                                                                                   
(5) ``Minimum distance'' means the least in any direction whether vertical or horizontal from the outer surface of the nearest package.                                                         
(6) The total consignment on board at any time must not exceed transport indexes totalling 200 except if carried under the provisions of Sec.  176.704(f). The figures below the double line of 
  the table should be used in such a contingency.                                                                                                                                               
(7) Not to be carried unless screening by other cargo and bulkheads can be arranged in accordance with the other columns.                                                                       

[Amdt. 176-15, 48 FR 10245, Mar. 10, 1983, as amended by Amdt. 176-37, 
60 FR 50334, Sept. 28, 1995]

[[Page 698]]



Sec. 176.710  Care following leakage or sifting of radioactive materials.

    (a) In case of fire, collision, or breakage involving any shipment 
of radioactive materials, other than materials of low specific activity, 
the radioactive materials must be segregated from unnecessary contact 
with personnel. In case of obvious leakage, or if the inside container 
appears to be damaged, the stowage area (hold, compartment, or deck 
area) containing this cargo must be isolated as much as possible to 
prevent radioactive material from entering any person's body through 
contact, inhalation, or ingestion. No person may handle the material or 
remain in the vicinity unless supervised by a qualified person.
    (b) A hold or compartment in which leakage of radioactive materials 
has occurred may not be used for other cargo until it is decontaminated 
in accordance with the requirements of Sec. 176.715.
    (c) For reporting requirements, see Sec. 171.15 of this subchapter.



Sec. 176.715  Contamination control.

    Each hold, compartment, or deck area used for the transportation of 
low specific activity or surface contaminated object Class 7 
(radioactive) materials under exclusive use conditions must be surveyed 
with appropriate radiation detection instruments after each use. Such 
holds, compartments, and deck areas may not be used again until the 
radiation dose rate at every accessible surface is less than 5 
microSieverts per hour (0.5 mrem per hour), and the removable (non-
fixed) radioactive surface contamination is not greater than the limits 
prescribed in Sec. 173.443 of this subchapter.
[Amdt. 176-37, 60 FR 50334, Sept. 28, 1995]



   Subpart N--Detailed Requirements for Class 8 (Corrosive Materials) 
                                Materials

    Source:  Amdt. 176-30, 55 FR 52708, Dec. 21, 1990, unless otherwise 
noted.



Sec. 176.800  General stowage requirements.

    (a) Each package required to have a Class 8 (corrosive) label 
thereon being transported on a vessel must be stowed clear of living 
quarters, and away from foodstuffs and cargo of an organic nature.
    (b) A package of Class 8 (corrosive material) material may not be 
stowed over any readily combustible material.
    (c) Glass carboys containing Class 8 (corrosive material) material 
may not be stowed on board any vessel, other than a barge, more than two 
tiers high unless each carboy is boxed or crated with neck protection 
extending to the sides of the carboy box. This protective construction 
must be strong enough to permit stacking one on top of the other.
    (d) A Class 8 (corrosive material) material may not be stowed over a 
hold or compartment containing cotton unless the deck is of steel and 
the hatch is fitted with a tight coaming. In addition, the deck must be 
tight against leakage and the Class 8 (corrosive material) material may 
not be stowed over the square of the hatch.
    (e) Each package of Class 8 (corrosive material) which also bears a 
FLAMMABLE LIQUID label must be stowed away from all sources of heat and 
ignition.
[Amdt. 176-30, 55 FR 52708, Dec. 21, 1990, as amended by Amdt. 176-39, 
61 FR 18933, Apr. 29, 1996]



Sec. 176.805  On deck stowage.

    When break bulk Class 8 (corrosive materials) materials being 
transported on a vessel are stowed on deck:
    (a) Provisions must be made for leakage from any package to drain 
away from other cargo into an overboard scupper or freeing port. The 
drainage may not enter an enclosed drainage system other than a direct 
overboard scupper. If this stowage is not practical, sufficient clean 
dry sand must be placed under and around the lower tier of packages to 
absorb any leakage.
    (b) Dunnage must be provided on the deck and arranged so that any 
leakage will be apparent.
    (c) Any leakage that occurs must be washed down, using liberal 
quantities of water.

[[Page 699]]



Subpart O--Detailed Requirements for Cotton and Vegetable Fibers, Motor 
                         Vehicles, and Asbestos

    Source:  Amdt. 176-30, 55 FR 52708, Dec. 21, 1990, unless otherwise 
noted.



Sec. 176.900  Packaging and stowage of cotton and vegetable fibers; general.

    (a) Cotton, Class 9, NA 1365, Cotton, wet, Division 4.2, UN 1365, 
and other vegetable fibers, Division 4.1, being transported on a vessel 
must be securely baled and bound. Each bale of cotton or vegetable 
fibers must be covered with bagging on at least three-fourths of its 
surface, including both ends. Cut cotton linters may be accepted for 
transportation by vessel when baled and covered with bagging on the soft 
sides only if the bale is compressed to a density of at least 512 kg/m 
\3\ (32 pounds per cubic foot) and it is bound with at least six bands 
per bale. Any poorly compressed bale or any bale having damaged bindings 
may not be transported by vessel.
    (b) Each bale of Cotton, wet, Division 4.2, UN 1365 must be stowed 
separately from any bales of dry cotton or vegetable fibers, in a 'tween 
deck space, and not overstowed. Any bale of cotton or vegetable fibers 
which is saturated with water may not be transported by vessel.
    (c) Bales of cotton or vegetable fibers showing contact with oil or 
grease may not be accepted for transportation by vessel.
    (d) Cotton or vegetable fibers must be stowed in a hold or 
compartment in accordance with the following requirements:
    (1) All traces of oil or residue in the hold or compartment must be 
removed;
    (2) A recently painted hold or compartment may not be used unless it 
is thoroughly dry;
    (3) Each ventilation cowl serving the hold or compartment must be 
fitted with a spark screen;
    (4) When a bulkhead of the hold or compartment is common with a 
boiler room, engine room, coal bunker, or galley and subjected to heat, 
a wooden bulkhead must be erected between the bulkhead and any cotton or 
vegetable fibers. This wooden bulkhead must be at least 15 cm (6 inches) 
from a boiler room bulkhead, and at least 5 cm (2 inches) from an engine 
room, coal bunker, or galley bulkhead;
    (5) Each 'tween deck hatch must be closed with hatch covers, 
tarpaulins, and dunnage; however, metal hatch covers which are sealed by 
other means to provide equivalent protection may be used;
    (6) Each hold or compartment must be equipped with a carbon dioxide 
or overhead water sprinkler system or other approved fixed extinguishing 
system. Before loading, the extinguishing system must be examined to 
ensure that it is in good working condition; and
    (7) Each hold or compartment must be clear of all debris and swept 
as clean as practicable before loading.
    (e) Naked lights or any fire likely to produce sparks are not 
permitted on the vessel, dock area, or on any lighters alongside a 
vessel during loading or unloading of cotton or vegetable fibers.
    (f) Upon completion of stowage, each opening must be completely 
closed. Where required, tarpaulins must be fitted and secured in place 
to provide a tight hold. During a period of temporary stoppage of 
loading or unloading, a hatch may be left open. However, during that 
period, a fire watch, designated by the master or officer-in-charge, 
must be stationed in the hold or compartment in which the cotton or 
vegetable fibers are stowed.
    (g) At least one fire hose must be connected while cotton or 
vegetable fibers are being loaded or unloaded. Each fire pump must be 
operated before any loading or unloading. Pressure must be maintained on 
each fire main during the loading and the fire hose laid out ready for 
immediate use. Portable fire extinguishers must be placed to be readily 
available. The fire hose, fire pumps, and fire extinguishers may be the 
vessel's equipment or shore equipment.
    (h) Smoking is not permitted on a vessel during the loading or 
unloading of cotton or vegetable fibers except at those times and in 
those places designated by the master. ``NO SMOKING'' signs must be 
conspicuously posted in appropriate places, and the

[[Page 700]]

responsible person in charge of the loading or unloading (see 
Sec. 176.57 of this part) must ensure that they are observed.
    (i) Cotton or vegetable fibers may be stowed in the same hold over 
bulk sulfur if the sulfur has been trimmed and leveled and the hold is 
thoroughly cleaned of sulfur dust. A tight floor of two layers of 2.54 
cm (1 inch) crossed clean dunnage boards must be laid on the sulfur 
before cotton or vegetable fibers are stowed. These substances may be 
stowed alongside each other in the same hold if they are separated by a 
tight dustproof wood bulkhead.
    (j) Cotton or vegetable fibers may not be stowed in a 'tween deck 
hold over bulk sulfur in a lower hold unless the 'tween deck hold has 
been thoroughly cleaned of all sulfur dust and the 'tween deck hatch 
covers are in place and covered with tarpaulins and dunnage.



Sec. 176.901  Stowage of cotton or vegetable fibers with rosin or pitch.

    (a) Unless impracticable, cotton or vegetable fibers being 
transported on a vessel may not be stowed in the same hold or 
compartment with rosin or pitch being transported on the same vessel.
    (b) When separate stowage is impracticable, the cotton or vegetable 
fibers may be stowed in the same hold or compartment with rosin or pitch 
if they are separated by clean dunnage or a cargo of a non-combustible 
nature. When such stowage within the same hold or compartment involves 
large amounts of cotton or fibers or of rosin or pitch, the rosin or 
pitch must be floored off with at least two layers of 2.54 cm (1 inch) 
dunnaging and the cotton or vegetable fibers stowed above.



Sec. 176.903  Stowage of cotton or vegetable fibers with coal.

    Cotton or vegetable fibers being transported on a vessel may not be 
stowed in the same hold with coal. They may be stowed in adjacent holds 
if the holds are separated by a tight steel bulkhead and the cotton or 
vegetable fibers are dunnaged at least 5 cm (2 inches) off the bulkhead. 
Cotton or vegetable fibers may be stowed in a hold above or below one in 
which coal is stowed if there is a tight steel intervening deck and all 
hatch covers are in place and covered with tarpaulins.



Sec. 176.905  Motor vehicles or mechanical equipment powered by internal combustion engines.

    (a) A motor vehicle or any mechanized equipment powered by an 
internal combustion engine is subject to the following requirements when 
carried as cargo on a vessel:
    (1) Before being loaded on a vessel, each motor vehicle or 
mechanical equipment must be inspected for fuel leaks and identifiable 
faults in the electrical system that could result in short circuit or 
other unintended electrical source of ignition. A motor vehicle or 
mechanical equipment showing any signs of leakage or electrical fault 
may not be transported.
    (2) The fuel tank of a motor vehicle or mechanical equipment powered 
by liquid fuel may not be more than one-fourth full.
    (3) Whenever possible, each vehicle or mechanical equipment must be 
stowed to allow for its inspection during transit.
    (4) Motor vehicles or mechanical equipment may be refueled when 
necessary in the hold of a vessel in accordance with Sec. 176.78.
    (5) When a motor vehicle or mechanical equipment with fuel in its 
tanks is stowed in a closed freight container, a warning, displayed on a 
contrasting background and readily legible from a distance of 8 meters 
(26 feet), must be affixed to the access doors to read as follows:

 WARNING-MAY CONTAIN EXPLOSIVE MIXTURES WITH AIR--KEEP IGNITION SOURCES 
                            AWAY WHEN OPENING

    (6) A motor vehicle or mechanical equipment's ignition key may not 
be in the ignition while the vehicle or mechanical equipment is stowed 
aboard a vessel.
    (b) All equipment used for handling vehicles or mechanical equipment 
must be designed so that the fuel tank and fuel system of the vehicle or 
mechanical equipment are protected from stress that might cause rupture 
or other damage incident to handling.

[[Page 701]]

    (c) Two hand-held, portable, dry chemical fire extinguishers of at 
least 4.5 kg (10 pounds) capacity each must be separately located in an 
accessible location in each hold or compartment in which any motor 
vehicle or mechanical equipment is stowed.
    (d) ``NO SMOKING'' signs must be conspicuously posted at each access 
opening to the hold or compartment.
    (e) Each portable electrical light, including a flashlight, used in 
the stowage area must be an approved, explosion-proof type. All 
electrical connections for any portable light must be made to outlets 
outside the space in which any vehicle or mechanical equipment is 
stowed.
    (f) Each hold or compartment must be ventilated and fitted with an 
overhead water sprinkler system or fixed fire extinguishing system.
    (g) Each hold or compartment must be equipped with a smoke or fire 
detection system capable of alerting personnel on the bridge.
    (h) All electrical equipment in the hold or compartment other than 
fixed explosion-proof lighting must be disconnected from its power 
source at a location outside the hold or compartment during the handling 
and transportation of any vehicle or mechanical equipment. Where the 
disconnecting means is a switch or circuit breaker, it must be locked in 
the open position until all vehicles have been removed.
    (i) Exceptions. A motor vehicle or mechanical equipment is excepted 
from the requirements of this subchapter if the following requirements 
are met:
    (1) The motor vehicle or mechanical equipment has an internal 
combustion engine using liquid fuel that has a flashpoint less than 38 
deg.C (100 deg.F), the fuel tank is empty, and the engine is run until 
it stalls for lack of fuel;
    (2) The motor vehicle or mechanical equipment has an internal 
combustion engine using liquid fuel that has a flashpoint of 38  deg.C 
(100  deg.F) or higher, the fuel tank contains 418 liters (110 gallons) 
of fuel or less, and there are no fuel leaks in any portion of the fuel 
system;
    (3) The motor vehicle or mechanical equipment is stowed in a hold or 
compartment designated by the administration of the country in which the 
vessel is registered to be specially suited for vehicles. See 46 CFR 
70.10-44 and 90.10-38 for U.S. vessels;
    (4) The motor vehicle or mechanical equipment is electrically 
powered by wet electric storage batteries; or
    (5) The motor vehicle or mechanical equipment is equipped with 
liquefied petroleum gas or other compressed gas fuel tanks, the tanks 
are completely emptied of liquid and the positive pressure in the tank 
does not exceed 2 bar (29 psi), the line from the fuel tank to the 
regulator and the regulator itself is drained of all trace of (liquid) 
gas, and the fuel shut-off valve is closed.
    (j) Except as provided in Sec. 173.220(f) of this subchapter, the 
provisions of this subchapter do not apply to items of equipment such as 
fire extinguishers, compressed gas accumulators, airbag inflators and 
the like which are installed in the motor vehicle or mechanical 
equipment if they are necessary for the operation of the vehicle or 
equipment, or for the safety of its operator or passengers.
[Amdt. 176-43, 62 FR 24742, May 6, 1997]



PART 177--CARRIAGE BY PUBLIC HIGHWAY--Table of Contents




             Subpart A--General Information and Regulations

Sec.
177.800  Purpose and scope of this part and responsibility for 
          compliance and training.
177.801  Unacceptable hazardous materials shipments.
177.802  Inspection.
177.804  Compliance with Federal Motor Carrier Safety Regulations.
177.810  Vehicular tunnels.
177.816  Driver training.
177.817  Shipping papers.
177.823  Movement of motor vehicles in emergency situations.

                    Subpart B--Loading and Unloading

177.834  General requirements.
177.835  Class 1 (explosive) materials.
177.837  Class 3 (flammable liquid) materials.
177.838  Class 4 (flammable solid) materials, Class 5 (oxidizing) 
          materials, and Division 4.2 (pyroforic liquid) materials.
177.839  Class 8 (corrosive) materials.
177.840  Class 2 (gases) materials.
177.841  Division 6.1 (poisonous) and Division 2.3 (poisonous gas) 
          materials.

[[Page 702]]

177.842  Class 7 (radioactive) material.
177.843  Contamination of vehicles.

   Subpart C--Segregation and Separation Chart of Hazardous Materials

177.848  Segregation of hazardous materials.

         Subpart D--Vehicles and Shipments in Transit; Accidents

177.854  Disabled vehicles and broken or leaking packages; repairs.

Subpart E--Regulations Applying to Hazardous Material on Motor Vehicles 
                      Carrying Passengers for Hire

177.870  Regulations for passenger carrying vehicles.

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.



             Subpart A--General Information and Regulations



Sec. 177.800  Purpose and scope of this part and responsibility for compliance and training.

    (a) Purpose and scope. This part prescribes requirements, in 
addition to those contained in parts 171, 172, 173, 178 and 180 of this 
subchapter, that are applicable to the acceptance and transportation of 
hazardous materials by private, common, or contract carriers by motor 
vehicle.
    (b) Responsibility for compliance. Unless this subchapter 
specifically provides that another person shall perform a particular 
duty, each carrier, including a connecting carrier, shall perform the 
duties specified and comply with all applicable requirements in this 
part and shall ensure its hazmat employees receive training in relation 
thereto.
    (c) Responsibility for training. A carrier may not transport a 
hazardous material by motor vehicle unless each of its hazmat employees 
involved in that transportation is trained as required by this part and 
subpart H of part 172 of this subchapter.
    (d) No unnecessary delay in movement of shipments. All shipments of 
hazardous materials must be transported without unnecessary delay, from 
and including the time of commencement of the loading of the hazardous 
material until its final unloading at destination.
[Amdt. 177-79, 57 FR 20954, May 15, 1992, as amended by Amdt.177-86, 61 
FR 18933, Apr. 29, 1996]



Sec. 177.801  Unacceptable hazardous materials shipments.

    No person may accept for transportation or transport by motor 
vehicle a forbidden material or hazardous material that is not prepared 
in accordance with the requirements of this subchapter.
[Amdt. 177-87, 61 FR 27175, May 30. 1996]



Sec. 177.802  Inspection.

    Records, equipment, packagings and containers under the control of a 
motor carrier, insofar as they affect safety in transportation of 
hazardous materials by motor vehicle, must be made available for 
examination and inspection by a duly authorized representative of the 
Department.
[Amdt. 177-71, 54 FR 25015, June 12, 1989]



Sec. 177.804  Compliance with Federal Motor Carrier Safety Regulations.

    Motor carriers and other persons subject to this part shall comply 
with 49 CFR parts 390 through 397 (excluding Secs. 397.3 and 397.9) to 
the extent those regulations apply.
[Amdt. 177-81, 58 FR 50505, Sept. 27, 1993]



Sec. 177.810  Vehicular tunnels.

    Except as regards Class 7 (radioactive) materials, nothing contained 
in parts 170-189 of this subchapter shall be so construed as to nullify 
or supersede regulations established and published under authority of 
State statute or municipal ordinance regarding the kind, character, or 
quantity of any hazardous material permitted by such regulations to be 
transported through any urban vehicular tunnel used for mass 
transportation.
[Amdt. 177-52, 46 FR 5316, Jan. 19, 1981, as amended by Amdt. 177-78, 55 
FR 52710, Dec. 21, 1990; 62 FR 51561, Oct. 1, 1997]



Sec. 177.816  Driver training.

    (a) In addition to the training requirements of Sec. 177.800, no 
carrier may transport, or cause to be transported, a

[[Page 703]]

hazardous material unless each hazmat employee who will operate a motor 
vehicle has been trained in the applicable requirements of 49 CFR parts 
390 through 397 and the procedures necessary for the safe operation of 
that motor vehicle. Driver training shall include the following 
subjects:
    (1) Pre-trip safety inspection;
    (2) Use of vehicle controls and equipment, including operation of 
emergency equipment;
    (3) Operation of vehicle, including turning, backing, braking, 
parking, handling, and vehicle characteristics including those that 
affect vehicle stability, such as effects of braking and curves, effects 
of speed on vehicle control, dangers associated with maneuvering through 
curves, dangers associated with weather or road conditions that a driver 
may experience (e.g., blizzards, mountainous terrain, high winds), and 
high center of gravity;
    (4) Procedures for maneuvering tunnels, bridges, and railroad 
crossings;
    (5) Requirements pertaining to attendance of vehicles, parking, 
smoking, routing, and incident reporting; and
    (6) Loading and unloading of materials, including--
    (i) Compatibility and segregation of cargo in a mixed load;
    (ii) Package handling methods; and
    (iii) Load securement.
    (b) Specialized requirements for cargo tanks and portable tanks. In 
addition to the training requirement of paragraph (a) of this section, 
each person who operates a cargo tank or a vehicle with a portable tank 
with a capacity of 1,000 gallons or more must receive training 
applicable to the requirements of this subchapter and have the 
appropriate State-issued commercial driver's license required by 49 CFR 
part 383. Specialized training shall include the following:
    (1) Operation of emergency control features of the cargo tank or 
portable tank;
    (2) Special vehicle handling characteristics, including: high center 
of gravity, fluid-load subject to surge, effects of fluid-load surge on 
braking, characteristic differences in stability among baffled, 
unbaffled, and multi-compartmented tanks; and effects of partial loads 
on vehicle stability;
    (3) Loading and unloading procedures;
    (4) The properties and hazards of the material transported; and
    (5) Retest and inspection requirements for cargo tanks.
    (c) The training required by paragraphs (a) and (b) of this section 
may be satisfied by compliance with the current requirements for a 
Commercial Driver's License (CDL) with a tank vehicle or hazardous 
materials endorsement.
    (d) Training required by paragraph (b) of this section must conform 
to the requirements of Sec. 172.704 of this subchapter with respect to 
frequency and recordkeeping.
[Amdt. 177-79, 57 FR 20954, May 15, 1992, as amended by Amdt. 177-79, 58 
FR 5852, Jan. 22, 1993]



Sec. 177.817  Shipping papers.

    (a) General requirements. A carrier may not transport a hazardous 
material unless it is accompanied by a shipping paper that is prepared 
in accordance with Secs. 172.200, 172.201, 172.202, and 172.203 of this 
subchapter.
    (b) Shipper certification. An initial carrier may not accept a 
hazardous material offered for transportation unless the shipping paper 
describing the material includes a shipper's certification which meets 
the requirements in Sec. 172.204 of this subchapter. Except for a 
hazardous waste, the certification is not required for shipments to be 
transported entirely by private carriage and for bulk shipments to be 
transported in a cargo tank supplied by the carrier.
    (c) Requirements when interlining with carriers by rail. A motor 
carrier shall mark on the shipping paper required by this section, if it 
offers or delivers a freight container or transport vehicle to a rail 
carrier for further transportation;
    (1) A description of the freight container or transport vehicle; and
    (2) The kind of placard affixed to the freight container or 
transport vehicle.
    (d) This subpart does not apply to a material that is excepted from 
shipping paper requirements as specified in Sec. 172.200 of this 
subchapter.

[[Page 704]]

    (e) Shipping paper accessibility--accident or inspection. A driver 
of a motor vehicle containing hazardous material, and each carrier using 
such a vehicle, shall ensure that the shipping paper required by this 
section is readily available to, and recognizable by, authorities in the 
event of accident or inspection. Specifically, the driver and the 
carrier shall:
    (1) Clearly distinguish the shipping paper, if it is carried with 
other shipping papers or other papers of any kind, by either 
distinctively tabbing it or by having it appear first; and
    (2) Store the shipping paper as follows:
    (i) When the driver is at the vehicle's controls, the shipping paper 
shall be: (A) Within his immediate reach while he is restrained by the 
lap belt; and (B) either readily visible to a person entering the 
driver's compartment or in a holder which is mounted to the inside of 
the door on the driver's side of the vehicle.
    (ii) When the driver is not at the vehicle's controls, the shipping 
paper shall be: (A) In a holder which is mounted to the inside of the 
door on the driver's side of the vehicle; or (B) on the driver's seat in 
the vehicle.
[Amdt. 177-35, 41 FR 16130, Apr. 15, 1976, as amended by Amdt. 177-35A, 
41 FR 40691, Sept. 20, 1976; Amdt. 177-48, 45 FR 47670, Nov. 10, 1980; 
Amdt. 177-65, 50 FR 11055, Mar. 19, 1985; Amdt. 177-72, 53 FR 17160, May 
13, 1988]



Sec. 177.823  Movement of motor vehicles in emergency situations.

    (a) A carrier may not move a transport vehicle containing a 
hazardous material unless the vehicle is marked and placarded in 
accordance with part 172 or as authorized in Sec. 171.12a of this 
subchapter, or unless, in an emergency:
    (1) The vehicle is escorted by a representative of a state or local 
government;
    (2) The carrier has permission from the Department; or
    (3) Movement of the transport vehicle is necessary to protect life 
or property.
    (b) Disposition of contents of cargo tank when unsafe to continue. 
In the event of a leak in a cargo tank of such a character as to make 
further transportation unsafe, the leaking vehicle should be removed 
from the traveled portion of the highway and every available means 
employed for the safe disposal of the leaking material by preventing, so 
far as practicable, its spread over a wide area, such as by digging 
trenches to drain to a hole or depression in the ground, diverting the 
liquid away from streams or sewers if possible, or catching the liquid 
in containers if practicable. Smoking, and any other source of ignition, 
in the vicinity of a leaking cargo tank is not permitted.
    (c) Movement of leaking cargo tanks. A leaking cargo tank may be 
transported only the minimum distance necessary to reach a place where 
the contents of the tank or compartment may be disposed of safely. Every 
available means must be utilized to prevent the leakage or spillage of 
the liquid upon the highway.
[Amdt. 177-35, 41 FR 16130, Apr. 15, 1976, as amended by Amdt. 177-67, 
50 FR 41521, Oct. 11, 1985; Amdt. 177-86, 61 FR 18933, Apr. 29, 1996]



                    Subpart B--Loading and Unloading

    Note: For prohibited loading and storage of hazardous materials, see 
Sec. 177.848.



Sec. 177.834  General requirements.

    (a) Packages secured in a vehicle. Any tank, barrel, drum, cylinder, 
or other packaging, not permanently attached to a motor vehicle, which 
contains any Class 3 (flammable liquid), Class 2 (gases). Class 8 
(corrosive), Division 6.1 (poisonous), or Class 7 (radioactive) material 
must be secured against movement within the vehicle on which it is being 
transported, under conditions normally incident to transportation.
    (b)  [Reserved]
    (c) No smoking while loading or unloading. Smoking on or about any 
motor vehicle while loading or unloading any Class 1 (explosive), Class 
3 (flammable liquid), Class 4 (flammable solid), Class 5 (oxidizing), or 
Division 2.1 (flammable gas) materials is forbidden.
    (d) Keep fire away, loading and unloading. Extreme care shall be 
taken in the loading or unloading of any Class 1 (explosive), Class 3 
(flammable liquid),

[[Page 705]]

Class 4 (flammable solid), Class 5 (oxidizing), or Division 2.1 
(flammable gas) materials into or from any motor vehicle to keep fire 
away and to prevent persons in the vicinity from smoking, lighting 
matches, or carrying any flame or lighted cigar, pipe, or cigarette.
    (e) Handbrake set while loading and unloading. No hazardous material 
shall be loaded into or on, or unloaded from, any motor vehicle unless 
the handbrake be securely set and all other reasonable precautions be 
taken to prevent motion of the motor vehicle during such loading or 
unloading process.
    (f) Use of tools, loading and unloading. No tools which are likely 
to damage the effectiveness of the closure of any package or other 
container, or likely adversely to affect such package or container, 
shall be used for the loading or unloading of any Class 1 (explosive) 
material or other dangerous article.
    (g) Prevent relative motion between containers. Containers of Class 
1 (explosive), Class 3 (flammable liquid), Class 4 (flammable solid), 
Class 5 (oxidizing), Class 8 (corrosive), Class 2 (gases) and Division 
6.1 (poisonous) materials, must be so braced as to prevent motion 
thereof relative to the vehicle while in transit. Containers having 
valves or other fittings must be so loaded that there will be the 
minimum likelihood of damage thereto during transportation.
    (h) Precautions concerning containers in transit; fueling road 
units. Reasonable care should be taken to prevent undue rise in 
temperature of containers and their contents during transit. There must 
be no tampering with such container or the contents thereof nor any 
discharge of the contents of any container between point of origin and 
point of billed destination. Discharge of contents of any container, 
other than a cargo tank, must not be made prior to removal from the 
motor vehicle. Nothing contained in this paragraph shall be so construed 
as to prohibit the fueling of machinery or vehicles used in road 
construction or maintenance.
    (i) Attendance requirements. (1) Loading. A cargo tank must be 
attended by a qualified person at all times when it is being loaded. The 
person who is responsible for loading the cargo tank is also responsible 
for ensuring that it is so attended.
    (2) Unloading. A motor carrier who transports hazardous materials by 
a cargo tank must ensure that the cargo tank is attended by a qualified 
person at all times during unloading. However, the carrier's obligation 
to ensure attendance during unloading ceases when:
    (i) The carrier's obligation for transporting the materials is 
fulfilled;
    (ii) The cargo tank has been placed upon the consignee's premises; 
and
    (iii) The motive power has been removed from the cargo tank and 
removed from the premises.
    (3) A person ``attends'' the loading or unloading of a cargo tank 
if, throughout the process, he is awake, has an unobstructed view of the 
cargo tank, and is within 7.62 meters (25 feet) of the cargo tank.
    (4) A person is ``qualified'' if he has been made aware of the 
nature of the hazardous material which is to be loaded or unloaded, he 
has been instructed on the procedures to be followed in emergencies, he 
is authorized to move the cargo tank, and he has the means to do so.
    (5) A delivery hose, when attached to the cargo tank, is considered 
a part of the vehicle.
    (j) Manholes and valves closed. A person may not drive a cargo tank 
and a motor carrier may not permit a person to drive a cargo tank motor 
vehicle containing a hazardous material regardless of quantity unless:
    (1) All manhole closures are closed and secured; and
    (2) All valves and other closures in liquid discharge systems are 
closed and free of leaks.
    (k) [Reserved]
    (l) Use of cargo heaters when transporting certain hazardous 
material. Transportation includes loading, carrying, and unloading.
    (1) When transporting Class 1 (explosive) materials. A motor vehicle 
equipped with a cargo heater of any type may transport Class 1 
(explosive) materials only if the cargo heater is rendered inoperable 
by: (i) Draining or removing the cargo heater fuel tank;

[[Page 706]]

and (ii) disconnecting the heater's power source.
    (2) When transporting certain flammable material--(i) Use of 
combustion cargo heaters. A motor vehicle equipped with a combustion 
cargo heater may be used to transport Class 3 (flammable liquid) or 
Division 2.1 (flammable gas) materials only if each of the following 
requirements are met:
    (A) It is a catalytic heater.
    (B) The heater's surface temperature cannot exceed 54  deg.C (130 
deg.F)--either on a thermostatically controlled heater or on a heater 
without thermostatic control when the outside or ambient temperature is 
16  deg.C (61  deg.F) or less.
    (C) The heater is not ignited in a loaded vehicle.
    (D) There is no flame, either on the catalyst or anywhere in the 
heater.
    (E) The manufacturer has certified that the heater meets the 
requirements under paragraph (l)(2)(i) of this section by permanently 
marking the heater ``MEETS DOT REQUIREMENTS FOR CATALYTIC HEATERS USED 
WITH FLAMMABLE LIQUID AND GAS.''
    (F) The heater is also marked ``DO NOT LOAD INTO OR USE IN CARGO 
COMPARTMENTS CONTAINING FLAMMABLE LIQUID OR GAS IF FLAME IS VISIBLE ON 
CATALYST OR IN HEATER.''
    (G) Heater requirements under Sec. 393.77 of this title are complied 
with.
    (ii) Effective date for combustion heater requirements. The 
requirements under paragraph (l)(2)(i) of this section govern as 
follows:
    (A) Use of a heater manufactured after November 14, 1975, is 
governed by every requirement under (l)(2)(i) of this section;
    (B) Use of a heater manufactured before November 15, 1975, is 
governed only by the requirements under (l)(2)(i) (A), (C), (D), (F) and 
(G) of this section until October 1, 1976; and
    (C) Use of any heater after September 30, 1976, is governed by every 
requirement under paragraph (l)(2)(i) of this section.
    (iii) Restrictions on automatic cargo-space-heating temperature 
control devices. Restrictions on these devices have two dimensions: 
Restrictions upon use and restrictions which apply when the device must 
not be used.
    (A) Use restrictions. An automatic cargo-space-heating temperature 
control device may be used when transporting Class 3 (flammable liquid) 
or Division 2.1 (flammable gas) materials only if each of the following 
requirements is met:
    (1) Electrical apparatus in the cargo compartment is nonsparking or 
explosion proof.
    (2) There is no combustion apparatus in the cargo compartment.
    (3) There is no connection for return of air from the cargo 
compartment to the combustion apparatus.
    (4) The heating system will not heat any part of the cargo to more 
than 54  deg.C (129  deg.F).
    (5) Heater requirements under Sec. 393.77 of this title are complied 
with.
    (B) Protection against use. Class 3 (flammable liquid) or Division 
2.1 (flammable gas) materials may be transported by a vehicle, which is 
equipped with an automatic cargo-space-heating temperature control 
device that does not meet each requirement of paragraph (l)(2)(iii)(A) 
of this section, only if the device is first rendered inoperable, as 
follows:
    (1) Each cargo heater fuel tank, if other than LPG, must be emptied 
or removed.
    (2) Each LPG fuel tank for automatic temperature control equipment 
must have its discharge valve closed and its fuel feed line 
disconnected.
    (m) Tanks constructed and maintained in compliance with Spec. 106A 
or 110A (Secs. 179.300, 179.301 of this subchapter) that are authorized 
for the shipment of hazardous materials by highway in part 173 of this 
subchapter must be carried in accordance with the following 
requirements:
    (1) Tanks must be securely chocked or clamped on vehicles to prevent 
any shifting.
    (2) Equipment suitable for handling a tank must be provided at any 
point where a tank is to be loaded upon or removed from a vehicle.
    (3) No more than two cargo carrying vehicles may be in the same 
combination of vehicles.
    (4) Compliance with Secs. 174.200 and 174.204 of this subchapter for 
combination rail freight, highway shipments

[[Page 707]]

and for trailer-on-flat-car service is required.
    (n) Specification 56, 57, IM 101, and IM 102 portable tanks, when 
loaded, may not be stacked on each other nor placed under other freight 
during transportation by motor vehicle.
[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.834, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 177.835  Class 1 (explosive) materials.

    (See also Sec. 177.834 (a) to (j).)
    (a) Engine stopped. No Class 1 (explosive) materials shall be loaded 
into or on or be unloaded from any motor vehicle with the engine 
running.
    (b) Care in loading, unloading, or other handling of Class 1 
(explosive) materials. No bale hooks or other metal tools shall be used 
for the loading, unloading, or other handling of Class 1 (explosive) 
materials, nor shall any package or other container of Class 1 
(explosive) materials, except barrels or kegs, be rolled. No packages of 
Class 1 (explosive) materials shall be thrown or dropped during process 
of loading or unloading or handling of Class 1 (explosive) materials. 
Special care shall be exercised to the end that packages or other 
containers containing Class 1 (explosive) materials shall not catch fire 
from sparks or hot gases from the exhaust tailpipe.
    (1) Whenever tarpaulins are used for covering Class 1 (explosive) 
materials, they shall be secured by means of rope, wire, or other 
equally efficient tie downs. Class 1 (explosive) materials placards or 
markings required by Sec. 177.823 shall be secured, in the appropriate 
locations, directly to the equipment transporting the Class 1 
(explosive) materials. If the vehicle is provided with placard boards, 
the placards must be applied to these boards.
    (c) Class 1 (explosive) materials on vehicles in combination. 
Division 1.1 or 1.2 (Class A explosive) materials may not be loaded into 
or carried on any vehicle or a combination of vehicles if:
    (1) More than two cargo carrying vehicles are in the combination;
    (2) Any full trailer in the combination has a wheel base of less 
than 184 inches;
    (3) Any vehicle in the combination is a cargo tank which is required 
to be marked or placarded under Sec. 177.823; or
    (4) The other vehicle in the combination contains any:
    (i) Substances, explosive, n.o.s., Division 1.1A (explosive) 
material (Initiating explosive),
    (ii) Packages of Class 7 (radioactive) materials bearing ``Yellow 
III'' labels,
    (iii) Division 2.3 (poisonous gas) or Division 6.1 (poisonous) 
materials, or
    (iv) Hazardous materials in a portable tank or a DOT specification 
106A or 110A tank.
    (d) [Reserved]
    (e) No sharp projections inside body of vehicles. No motor vehicle 
transporting any kind of Class 1 (explosive) material shall have on the 
interior of the body in which the Class 1 (explosive) materials are 
contained, any inwardly projecting bolts, screws, nails, or other 
inwardly projecting parts likely to produce damage to any package or 
container of Class 1 (explosive) materials during the loading or 
unloading process or in transit.
    (f) Class 1 (explosive) materials vehicles, floors tight and lined. 
Motor vehicles transporting Division 1.1, 1.2, or 1.3 (Class A or Class 
B explosive) materials shall have tight floors; shall have that portion 
of the interior in contact with the load lined with either non-metallic 
material or non-ferrous metals, except that the lining is not required 
for truck load shipments loaded by the Departments of the Army, Navy or 
Air Force of the United States Government provided the Class 1 
(explosive) materials are of such nature that they are not liable to 
leakage of dust, powder, or vapor which might become the cause of an 
explosion. The interior of the cargo space must be in good condition so 
that there will not be any likelihood of containers being damaged by 
exposed bolts, nuts, broken side panels or floor boards, or any similar 
projections.
    (g) No detonator assembly or booster with detonator may be 
transported on the same motor vehicle with any Division 1.1, 1.2 or 1.3 
(Class A or Class B

[[Page 708]]

explosive) material (except other detonator assemblies, boosters with 
detonators or detonators), explosives for blasting or detonating cord 
Division 1.4 (Class C explosive) material. No detonator may be 
transported on the same motor vehicle with any Division 1.1, 1.2 or 1.3 
(Class A or Class B explosive) material (except other detonators, 
detonator assemblies or boosters with detonators), explosives for 
blasting or detonating cord, Division 1.4 (Class C explosive) material 
unless--
    (1) It is packed in a specification MC 201 (Sec. 178.318 of this 
subchapter) container, or
    (2) The package conforms with requirements prescribed in Sec. 173.63 
of this subchapter, and its use is restricted to instances when--
    (i) There is no Division 1.1, 1.2, or 1.3 (Class A or Class B 
explosive) material or blasting agent loaded on the motor vehicle; and
    (ii) A separation of 61 cm (24 inches) is maintained between each 
package of detonators and each package of detonating cord; or
    (3) It is packed and loaded in accordance with a method approved by 
the Department. One method approved by the Department is as follows:
    (i) The detonators are in packagings as prescribed in Sec. 173.63 of 
this subchapter which in turn are loaded into suitable containers or 
separate compartments. Both the detonators and the container or 
compartment must meet the requirements of the Institute of Makers of 
Explosives' Standard (IME Safety Library Publication No. 22).
    (h) Lading within body or covered tailgate closed. Except as 
provided in paragraphs (g), (k), and (m) of this section, dealing with 
the transportation of liquid nitroglycerin, desensitized liquid 
nitroglycerin or diethylene glycol dinitrate, all of that portion of the 
lading of any motor vehicle which consists of Class 1 (explosive) 
materials shall be contained entirely within the body of the motor 
vehicle or within the horizontal outline thereof, without overhang or 
projection of any part of the load and if such motor vehicle has a 
tailboard or tailgate, it shall be closed and secured in place during 
such transportation. Every motor vehicle transporting Class 1 
(explosive) materials must either have a closed body or have the body 
thereof covered with a tarpaulin, and in either event care must be taken 
to protect the load from moisture and sparks, except that subject to 
other provisions of these regulations, Class 1 (explosive) materials 
other than black powder may be transported on flat-bed vehicles if the 
explosive portion of the load on each vehicle is packed in fire and 
water resistant containers or covered with a fire and water resistant 
tarpaulin.
    (i) Class 1 (explosive) materials to be protected against damage by 
other lading. No motor vehicle transporting any Class 1 (explosive) 
material may transport as a part of its load any metal or other articles 
or materials likely to damage such Class 1 (explosive) material or any 
package in which it is contained, unless the different parts of such 
load be so segregated or secured in place in or on the motor vehicle and 
separated by bulkheads or other suitable means as to prevent such 
damage.
    (j) Transfer of Class 1 (explosive) materials en route. No Division 
1.1, 1.2, or 1.3 (Class A or Class B explosive) material shall be 
transferred from one container to another, or from one motor vehicle to 
another vehicle, or from another vehicle to a motor vehicle, on any 
public highway, street, or road, except in case of emergency. In such 
cases red electric lanterns, red emergency reflectors or red flags shall 
be set out in the manner prescribed for disabled or stopped motor 
vehicles. (See Motor Carrier Safety Regulations, part 392 of this 
title.) In any event, all practicable means, in addition to these 
hereinbefore prescribed, shall be taken to protect and warn other users 
of the highway against the hazard involved in any such transfer or 
against the hazard occasioned by the emergency making such transfer 
necessary.
[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.835, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 177.837  Class 3 (flammable liquid) materials.

    (See also Sec. 177.834 (a) to (j).)

[[Page 709]]

    (a) Engine stopped. Unless the engine of a cargo tank motor vehicle 
is to be used for the operation of a pump, no Class 3 material shall be 
loaded into, or on, or unloaded from any cargo tank motor vehicle while 
the engine is running.
    (b) Bonding and grounding containers other than cargo tanks prior to 
and during transfer of lading. For containers which are not in metallic 
contact with each other, either metallic bonds or ground conductors 
shall be provided for the neutralization of possible static charges 
prior to and during transfers of Class 3 (flammable liquid) materials 
between such containers. Such bonding shall be made by first connecting 
an electric conductor to the container to be filled and subsequently 
connecting the conductor to the container from which the liquid is to 
come, and not in any other order. To provide against ignition of vapors 
by discharge of static electricity, the latter connection shall be made 
at a point well removed from the opening from which the Class 3 
(flammable liquid) material is to be discharged.
    (c) Bonding and grounding cargo tanks before and during transfer of 
lading. (1) When a cargo tank is loaded through an open filling hole, 
one end of a bond wire shall be connected to the stationary system 
piping or integrally connected steel framing, and the other end to the 
shell of the cargo tank to provide a continuous electrical connection. 
(If bonding is to the framing, it is essential that piping and framing 
be electrically interconnected.) This connection must be made before any 
filling hole is opened, and must remain in place until after the last 
filling hole has been closed. Additional bond wires are not needed 
around All-Metal flexible or swivel joints, but are required for 
nonmetallic flexible connections in the stationary system piping. When a 
cargo tank is unloaded by a suction-piping system through an open 
filling hole of the cargo tank, electrical continuity shall be 
maintained from cargo tank to receiving tank.
    (2) When a cargo tank is loaded or unloaded through a vapor-tight 
(not open hole) top or bottom connection, so that there is no release of 
vapor at a point where a spark could occur, bonding or grounding, is not 
required. Contact of the closed connection must be made before flow 
starts and must not be broken until after the flow is completed.
    (3) Bonding or grounding is not required when a cargo tank is 
unloaded through a nonvapor-tight connection into a stationary tank 
provided the metallic filling connection is maintained in contact with 
the filling hole.
[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.837, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 177.838  Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials.

    (See also Sec. 177.834 (a) to (j).)
    (a) Lading within body or covered; tailgate closed; pick-up and 
delivery. All of that portion of the lading of any motor vehicle 
transporting Class 4 (flammable solid) or Class 5 (oxidizing) materials 
shall be contained entirely within the body of the motor vehicle and 
shall be covered by such body, by tarpaulins, or other suitable means, 
and if such motor vehicle has a tailboard or tailgate, it shall be 
closed and secured in place during such transportation: Provided, 
however, That the provisions of this paragraph need not apply to ``pick-
up and delivery'' motor vehicles when such motor vehicles are used in no 
other transportation than in and about cities, towns, or villages. 
Shipment in water-tight bulk containers need not be covered by a 
tarpaulin or other means.
    (b) Articles to be kept dry. Special care shall be taken in the 
loading of any motor vehicle with Class 4 (flammable solid) or Class 5 
(oxidizing) materials which are likely to become hazardous to transport 
when wet, to keep them from being wetted during the loading process and 
to keep them dry during transit. Special care shall also be taken in the 
loading of any motor vehicle with Class 4 (flammable solid) or Class 5 
(oxidizing) materials, which are likely to become more hazardous to 
transport by wetting, to keep them from being wetted during the loading

[[Page 710]]

process and to keep them dry during transit. Examples of such dangerous 
materials are charcoal screenings, ground, crushed, or pulverized 
charcoal, and lump charcoal.
    (c) Lading ventilation, precautions against spontaneous combustion. 
Whenever a motor carrier has knowledge concerning the hazards of 
spontaneous combustion or heating of any article to be loaded on a motor 
vehicle, such article shall be so loaded as to afford sufficient 
ventilation of the load to provide reasonable assurance against fire 
from this cause; and in such a case the motor vehicle shall be unloaded 
as soon as practicable after reaching its destination. Charcoal 
screenings, or ground, crushed, granulated, or pulverized charcoal, in 
bags, shall be so loaded that the bags are laid horizontally in the 
motor vehicle, and so piled that there will be spaces for effective air 
circulation, which spaces shall not be less than 10 cm (3.9 inches) 
wide; and air spaces shall be maintained between rows of bags. Bags 
shall not be piled closer than 15 cm (5.9 inches) from the top of any 
motor vehicle with a closed body.
    (d)-(e)  [Reserved]
    (f) Nitrates, except ammonium nitrate having organic coating, must 
be loaded in closed or open type motor vehicles, which must be swept 
clean and be free of any projections capable of injuring bags when so 
packaged. When shipped in open typemotor vehicles, the lading must be 
suitably covered. Ammonium nitrate having organic coating must not be 
loaded in all-metal vehicles, other than those made of aluminum or 
aluminum alloys of the closed type.
    (g) A motor vehicle may only contain 45.4 kg (100 pounds) or less 
net mass of material described as ``Smokeless powder for small arms, 
Division 4.1''.
    (h) Division 4.2 (pyrophoric liquid) materials in cylinders. 
Cylinders containing Division 4.2 (pyrophoric liquid) materials, unless 
packed in a strong box or case and secured therein to protect valves, 
must be loaded with all valves and safety relief devices in the vapor 
space. All cylinders must be secured so that no shifting occurs in 
transit.
[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.838, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 177.839  Class 8 (corrosive) materials.

    (See also Sec. 177.834(a) through (j).)
    (a) Nitric acid. No packaging of nitric acid of 50 percent or 
greater concentration may be loaded above any packaging containing any 
other kind of material.
    (b) Storage batteries. All storage batteries containing any 
electrolyte must be so loaded, if loaded with other lading, that all 
such batteries will be protected against other lading falling onto or 
against them, and adequate means must be provided in all cases for the 
protection and insulation of battery terminals against short circuits.
[Amdt. 177-87, 61 FR 27175, May 30, 1996]



Sec. 177.840  Class 2 (gases) materials.

    (See also Sec. 177.834 (a) to (j).)
    (a) Floors or platforms essentially flat. Cylinders containing Class 
2 (gases) materials shall not be loaded onto any part of the floor or 
platform of any motor vehicle which is not essentially flat; cylinders 
containing Class 2 (gases) materials may be loaded onto any motor 
vehicle not having a floor or platform only if such motor vehicle be 
equipped with suitable racks having adequate means for securing such 
cylinders in place therein. Nothing contained in this section shall be 
so construed as to prohibit the loading of such cylinders on any motor 
vehicle having a floor or platform and racks as hereinbefore described.
    (1) Cylinders. To prevent their overturning, cylinders containing 
Class 2 (gases) materials must be securely lashed in an upright 
position; loaded into racks securely attached to the motor vehicle; 
packed in boxes or crates of such dimensions as to prevent their 
overturning; or loaded in a horizontal position. Specification DOT-4L 
cylinders must be loaded in an upright position and securely braced.

[[Page 711]]

    (2) Cylinders for hydrogen, cryogenic liquid. A Specification DOT-4L 
cylinder containing hydrogen, cryogenic liquid may only be transported 
on a motor vehicle as follows:
    (i) The vehicle must have an open body equipped with a suitable rack 
or support having a means to hold the cylinder upright when subjected to 
an acceleration of 2 ``g'' in any horizontal direction;
    (ii) The combined total of the hydrogen venting rates, as marked, on 
the cylinders transported on one motor vehicle may not exceed 60 SCF per 
hour;
    (iii) The vehicle may not enter a tunnel; and
    (iv) Highway transportation is limited to private and contract 
carriage and to direct movement from point of origin to destination.
    (b) Portable tank containers containing Class 2 (gases) materials 
shall be loaded on motor vehicles only as follows:
    (1) Onto a flat floor or platform of a motor vehicle.
    (2) Onto a suitable frame of a motor vehicle.
    (3) In either such case, such containers shall be safely and 
securely blocked or held down to prevent movement relative to each other 
or to the supporting structure when in transit, particularly during 
sudden starts and stops and changes of direction of the vehicle.
    (4) Requirements of paragraphs (1) and (2) of this paragraph (b) 
shall not be construed as prohibiting stacking of containers provided 
the provisions of paragraph (3) of this paragraph (b) are fully complied 
with.
    (c) [Reserved]
    (d) Engine to be stopped in cargo tanks, except for transfer pump. 
No Division 2.1 (flammable gas) material shall be loaded into or on or 
unloaded from any cargo tank with the engine running unless the engine 
is used for the operation of the transfer pump of the vehicle. Unless 
the delivery hose is equipped with a shut-off valve at its discharge 
end, the engine of the motor vehicle shall be stopped at the finish of 
such loading or unloading operation while the filling or discharge 
connections are disconnected.
    (e) Chlorine cargo tanks shall be shipped only when equipped (1) 
with a gas mask of a type approved by the The National Institute of 
Occupational Safety and Health (NIOSH) Pittsburgh Research Center, U.S. 
Department of Health and Human Services for chlorine service; (2) with 
an emergency kit for controlling leaks in fittings on the dome cover 
plate.
    (f) A cargo tank motor vehicle used for transportation of chlorine 
may not be moved, coupled or uncoupled, when any loading or unloading 
connections are attached to the vehicle, nor may it be left without the 
power unit attached unless the vehicle is chocked or equivalent means 
are provided to prevent motion. For additional requirements, see 
Sec. 173.315(o) of this subchapter.
    (g) Each liquid discharge valve on a cargo tank, other than an 
engine fuel line valve, must be closed during transportation except 
during loading and unloading.
    (h) The driver of a motor vehicle transporting a Division 2.1 
(flammable gas) material that is a cryogenic liquid in a package 
exceeding 450 liters (119 gallons) of water capacity shall avoid 
unnecessary delays during transportation. If unforeseen conditions cause 
an excessive pressure rise, the driver shall manually vent the tank at a 
remote and safe location. For each shipment, the driver shall make a 
written record of the cargo tank pressure and ambient (outside) 
temperature:
    (1) At the start of each trip,
    (2) Immediately before and after any manual venting,
    (3) At least once every five hours, and
    (4) At the destination point.
    (i) No person may transport a Division 2.1 (flammable gas) material 
that is a cryogenic liquid in a cargo tank unless the pressure of the 
lading is equal to or less than that used to determine the marked rated 
holding time (MRHT) and the one-way travel time (OWTT), marked on the 
tank in conformance with Sec. 173.318(g) of this subchapter, is equal to 
or greater than the elapsed time between the start and termination of 
travel. This prohibition does not apply if, prior to expiration of the 
OWTT, the tank is brought to full equilibration as specified in 
paragraph (j) of this section.
    (j) Full equilibration of a cargo tank transporting a Division 2.1 
(flammable

[[Page 712]]

gas) material that is a cryogenic liquid may only be done at a facility 
that loads or unloads a Division 2.1 (flammable gas) material that is a 
cryogenic liquid and must be performed and verified as follows:
    (1) The temperature and pressure of the liquid must be reduced by a 
manually controlled release of vapor; and
    (2) The pressure in the cargo tank must be measured at least ten 
minutes after the manual release is terminated.
    (k) A carrier of carbon monoxide, cryogenic liquid must provide each 
driver with a self-contained air breathing apparatus that is approved by 
the National Institute of Occupational Safety and Health; for example, 
Mine Safety Appliance Co., Model 401, catalog number 461704.

(Approved by the Office of Management and Budget under control number 
2137-0542)

[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.840, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.



Sec. 177.841  Division 6.1 (poisonous) and Division 2.3 (poisonous gas) materials.

    (See also Sec. 177.834 (a) to (j).)
    (a) Arsenical compounds in bulk. Care shall be exercised in the 
loading and unloading of ``arsenical dust'', ``arsenic trioxide'', and 
``sodium arsenate'', allowable to be loaded into sift-proof, steel 
hopper-type or dump-type motor-vehicle bodies equipped with water-proof, 
dust-proof covers well secured in place on all openings, to accomplish 
such loading with the minimum spread of such compounds into the 
atmosphere by all means that are practicable; and no such loading or 
unloading shall be done near or adjacent to any place where there are or 
are likely to be, during the loading or unloading process assemblages of 
persons other than those engaged in the loading or unloading process, or 
upon any public highway or in any public place. Before any motor vehicle 
may be used for transporting any other articles, all detectable traces 
of arsenical materials must be removed therefrom by flushing with water, 
or by other appropriate method, and the marking removed.
    (b) [Reserved]
    (c) Division 2.3 (poisonous gas) or Division 6.1 (poisonous) 
materials. The transportation of a Division 2.3 (poisonous gas) or 
Division 6.1 (poisonous) material is not permitted if there is any 
interconnection between packagings.
    (d)  [Reserved]
    (e) A motor carrier may not transport a package:
    (1) Bearing a POISON label in the same motor vehicle with material 
that is marked as or known to be foodstuffs, feed or any edible material 
intended for consumption by humans or animals unless the poisonous 
material is packaged in accordance with this subchapter and is:
    (i) Overpacked in a metal drum as specified in Sec. 173.25(c) of 
this subchapter; or
    (ii) Loaded into a closed unit load device and the foodstuffs, feed, 
or other edible material are loaded into another closed unit load 
device;
    (2) Bearing or required to bear a POISON or POISON GAS label in the 
driver's compartment (including a sleeper berth) of a motor vehicle; or
    (3) Bearing a KEEP AWAY FROM FOOD label with materials marked as or 
known to be foodstuffs, feed, or any other edible material intended for 
consumption by humans or animals unless the package bearing the KEEP 
AWAY FROM FOOD label is separated in a manner that, in the event of 
leakage from packages under conditions normally incident to 
transportation, commingling of hazardous materials with foodstuffs, 
feed, or any other edible material would not occur.
[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.841, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.

    Effective Date Note: By Amdt. 177-89, 62 FR 1236, Jan. 8, 1997, in 
Sec. 177.841, paragraphs (e)(1) and (e)(2) were revised, effective Oct. 
1, 1997. At 63 FR 39398, July 22, 1997 the effective date was delayed 
until Oct. 1, 1998. For the convenience of the user the revised text is 
set forth as follows:

[[Page 713]]

Sec. 177.841  Division 6.1 (poisonous) and Division 2.3 (poisonous gas) 
          materials.

                                * * * * *

    (e) * * * * *
    (1) Bearing or required to bear a POISON or POISON INHALATION HAZARD 
label in the same motor vehicle with material that is marked as or known 
to be a foodstuffs, feed or edible material intended for consumption by 
humans or animals unless the poisonous material is packaged in 
accordance with this subchapter and is:
    (i) Overpacked in a metal drum as specified in Sec. 173.25(c) of 
this subchapter; or
    (ii) Loaded into a closed unit load device and the foodstuffs, feed, 
or other edible material are loaded into another closed unit load 
device;
    (2) Bearing or required to bear a POISON, POISON GAS or POISON 
INHALATION HAZARD label in the driver's compartment (including a sleeper 
berth) of a motor vehicle; or

                                * * * * *



Sec. 177.842  Class 7 (radioactive) material.

    (a) The number of packages of Class 7 (radioactive) materials in any 
transport vehicle or storage location must be limited so that the total 
transport index number does not exceed 50. The total transport index of 
a group of packages and overpacks is determined by adding together the 
transport index number on the labels on the individual packages and 
overpacks in the group. This provision does not apply to exclusive use 
shipments described in Secs. 173.441(b), 173.457, and 173.427 of this 
subchapter.
    (b) Packages of Class 7 (radioactive) material bearing ``RADIOACTIVE 
YELLOW-II'' or ``RADIOACTIVE YELLOW-III'' labels may not be placed in a 
transport vehicle, storage location or in any other place closer than 
the distances shown in the following table to any area which may be 
continuously occupied by any passenger, employee, or animal, nor closer 
than the distances shown in the table to any package containing 
undeveloped film (if so marked), and must conform to the following 
conditions:
    (1) If more than one of these packages is present, the distance must 
be computed from the following table on the basis of the total transport 
index number determined by adding together the transport index number on 
the labels on the individual packages and overpacks in the vehicle or 
storeroom.
    (2) Where more than one group of packages is present in any single 
storage location, a single group may not have a total transport index 
greater than 50. Each group of packages must be handled and stowed not 
closer than 6 meters (20 feet) (measured edge to edge) to any other 
group. The following table is to be used in accordance with the 
provisions of paragraph (b) of this section:

[[Page 714]]



                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                      Minimum separation distance in meters (feet) to nearest undeveloped film in various times of      Minimum distance
                                                                                 transit                                                in meters (feet)
                                  ----------------------------------------------------------------------------------------------------     to area of   
                                                                                                                                          persons, or   
                                                                                                                                        minimum distance
      Total transport index                                                                                                             in meters (feet)
                                      Up to 2 hours         2-4 hours           4-8 hours          8-12 hours         Over 12 hours      from dividing  
                                                                                                                                          partition of  
                                                                                                                                             cargo      
                                                                                                                                          compartments  
--------------------------------------------------------------------------------------------------------------------------------------------------------
None.............................  0.0 (0)...........  0.0 (0)...........  0.0 (0)...........  0.0 (0)...........   0.0 (0)..........  0.0 (0)          
0.1 to 1.0.......................  0.3 (1)...........  0.6 (2)...........  0.9 (3)...........  1.2 (4)...........   1.5 (5)..........  0.3 (1)          
1.1 to 5.0.......................  0.9 (3)...........  1.2 (4)...........  1.8 (6)...........  2.4 (8)...........   3.4 (11).........  0.6 (2)          
5.1 to 10.0......................  1.2 (4)...........  1.8 (6)...........  2.7 (9)...........  3.4 (11)..........   4.6 (15).........  0.9 (3)          
10.1 to 20.0.....................  1.5 (5)...........  2.4 (8)...........  3.7 (12)..........  4.9 (16)..........   6.7 (22).........  1.2 (4)          
20.1 to 30.0.....................  2.1 (7)...........  3.0 (10)..........  4.6 (15)..........  6.1 (20)..........   8.8 (29).........  1.5 (5)          
30.1 to 40.0.....................  2.4 (8)...........  3.4 (11)..........  5.2 (17)..........  6.7 (22)..........  10.1 (33).........  1.8 (6)          
40.1 to 50.0.....................  2.7 (9)...........  3.7 (12)..........  5.8 (19)..........  7.3 (24)..........  11.0 (36).........  2.1 (7)          
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: The distance in this table must be measured from the nearest point on the nearest packages of Class 7 (radioactive) material.                     

[[Page 715]]

                                                                                                                                                        

    (c) Shipments of low specific activity materials and surface 
contaminated objects, as defined in Sec. 173.403 of this subchapter, 
must be loaded so as to avoid spillage and scattering of loose 
materials. Loading restrictions are set forth in Sec. 173.427 of this 
subchapter.
    (d) Packages must be so blocked and braced that they cannot change 
position during conditions normally incident to transportation.
    (e) Persons should not remain unnecessarily in a vehicle containing 
Class 7 (radioactive) materials.
    (f) Each fissile material, controlled shipment (as defined in 
Sec. 173.403 of this subchapter) must be transported in accordance with 
one of the methods prescribed in Sec. 173.457 of this subchapter. The 
transport controls must be adequate to assure that no fissile material, 
controlled shipment is transported in the same transport vehicle with 
any other fissile Class 7 (radioactive) material shipment. In loading 
and storage areas each fissile material, controlled shipment must be 
segregated by a distance of at least 6 meters (20 feet) from any other 
package required to bear one of the ``Radioactive'' labels described in 
Sec. 172.403 of this subchapter.
    (g) For shipments transported under exclusive use conditions the 
radiation dose rate may not exceed 0.02 mSv per hour (2 mrem per hour) 
in any position normally occupied in the motor vehicle. For shipments 
transported as exclusive use under the provisions of Sec. 173.441(b) of 
this subchapter for packages with external radiation levels in excess of 
2 mSv (200 mrem per hour) at the package surface, the motor vehicle must 
meet the requirements of a closed transport vehicle (Sec. 173.403 of 
this subchapter). The total transport index for packages containing 
fissile material may not exceed 100.
[Amdt. 177-85, 60 FR 50334, Sept. 28, 1995]



Sec. 177.843  Contamination of vehicles.

    (a) Each motor vehicle used for transporting Class 7 (radioactive) 
materials under exclusive use conditions in accordance with 
Sec. 173.427(b)(3) or (c) or Sec. 173.443(c) of this subchapter must be 
surveyed with radiation detection instruments after each use. A vehicle 
may not be returned to service until the radiation dose rate at every 
accessible surface is 0.005 mSv per hour (0.5 mrem per hour) or less and 
the removable (non-fixed) radioactive surface contamination is not 
greater than the level prescribed in Sec. 173.443(a) of this subchapter.
    (b) This section does not apply to any vehicle used solely for 
transporting Class 7 (radioactive) material if a survey of the interior 
surface shows that the radiation dose rate does not exceed 0.1 mSv per 
hour (10 mrem per hour) at the interior surface or 0.02 mSv per hour (2 
mrem per hour) at 1 meter (3.3 feet) from any interior surface. These 
vehicles must be stenciled with the words ``For Radioactive Materials 
Use Only'' in lettering at least 7.6 centimeters (3 inches) high in a 
conspicuous place, on both sides of the exterior of the vehicle. These 
vehicles must be kept closed at all times other than loading and 
unloading.
    (c) In case of fire, accident, breakage, or unusual delay involving 
shipments of Class 7 (radioactive) material, see Sec. 177.861.
[Amdt. 177-3, 33 FR 14933, Oct. 4, 1968, as amended by Amdt. 177-35, 41 
FR 16131, Apr. 15, 1976; Amdt. 177-57, 48 FR 10247, Mar. 10, 1983; Amdt. 
177-78, 55 FR 52712, Dec. 21, 1990; Amdt. 177-85, 60 FR 50335, Sept. 28, 
1995]



   Subpart C--Segregation and Separation Chart of Hazardous Materials



Sec. 177.848  Segregation of hazardous materials.

    (a) This section applies to materials which meet one or more of the 
hazard classes defined in this subchapter and are:
    (1) In packages which require labels in accordance with part 172 of 
this subchapter;
    (2) In a compartment within a multi-compartmented cargo tank subject 
to the restrictions in Sec. 173.33 of this subchapter; or
    (3) In a portable tank loaded in a transport vehicle or freight 
container.
    (b) When a transport vehicle is to be transported by vessel, other 
than a ferry vessel, hazardous materials on or within that vehicle must 
be stowed and segregated in accordance with Sec. 176.83(b) of this 
subchapter.

[[Page 716]]

    (c) In addition to the provisions of paragraph (d) of this section, 
cyanides or cyanide mixtures may not be loaded or stored with acids.
    (d) Hazardous materials may not be loaded, transported, or stored 
together, except as provided in this section, and in accordance with the 
following Table:

[[Page 717]]



                                                                            Segregation Table for Hazardous Materials                                                                           
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                        6.1                     
                                                     1.1                                              2.3 gas    2.3 gas                                              liquids          8 liquids
       Class or division                   Notes     1.2    1.3    1.4    1.5    1.6    2.1    2.2     zone A     Zone B     3     4.1    4.2    4.3    5.1    5.2   PG I zone    7       only  
                                                                                                                                                                         A                      
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Explosives....................  1.1 and  A          *      *      *      *      *      X      X      X          X          X      X      X      X      X      X      X          X      X        
                                    1.2                                                                                                                                                         
Explosives....................      1.3  .........  *      *      *      *      *      X      .....  X          X          X      .....  X      X      X      X      X          .....  X        
Explosives....................      1.4  .........  *      *      *      *      *      O      .....  O          O          O      .....  O      .....  .....  .....  O          .....  O        
Very insensitive explosives...      1.5  A          *      *      *      *      *      X      X      X          X          X      X      X      X      X      X      X          X      X        
Extremely insensitive               1.6  .........  *      *      *      *      *      .....  .....  .........  .........  .....  .....  .....  .....  .....  .....  .........  .....  .........
 explosives.                                                                                                                                                                                    
Flammable gases...............      2.1  .........  X      X      O      X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  O          O      .........
Non-toxic, non-flammable gases      2.2  .........  X      .....  .....  X      .....  .....  .....  .........  .........  .....  .....  .....  .....  .....  .....  .........  .....  .........
Poisonous gas Zone A..........      2.3  .........  X      X      O      X      .....  X      .....  .........  .........  X      X      X      X      X      X      .........  .....  X        
Poisonous gas Zone B..........      2.3  .........  X      X      O      X      .....  O      .....  .........  .........  O      O      O      O      O      O      .........  .....  O        
Flammable liquids.............        3  .........  X      X      O      X      .....  .....  .....  X          O          .....  .....  .....  .....  O      .....  X          .....  .........
Flammable solids..............      4.1  .........  X      .....  .....  X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  O        
Spontaneously combustible           4.2  .........  X      X      O      X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  X        
 materials.                                                                                                                                                                                     
Dangerous when wet materials..      4.3  .........  X      X      .....  X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  O        
Oxidizers.....................      5.1  A          X      X      .....  X      .....  .....  .....  X          O          O      .....  .....  .....  .....  .....  X          .....  O        
Organic peroxides.............      5.2  .........  X      X      .....  X      .....  .....  .....  X          O          .....  .....  .....  .....  .....  .....  X          .....  O        
Poisonous liquids PG I Zone A.      6.1  .........  X      X      O      X      .....  O      .....  .........  .........  X      X      X      X      X      X      .........  .....  X        
Radioactive materials.........        7  .........  X      .....  .....  X      .....  O      .....  .........  .........  .....  .....  .....  .....  .....  .....  .........  .....  .........
Corrosive liquids.............        8  .........  X      X      O      X      .....  .....  .....  X          O          .....  O      X      O      O      O      X          .....  .........

[[Page 718]]

                                                                                                                                                                                                
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    (e) lnstructions for using the segregation table for hazardous 
materials are as follows:
    (1) The absence of any hazard class or division or a blank space in 
the Table indicates that no restrictions apply.
    (2) The letter ``X'' in the Table indicates that these materials may 
not be loaded, transported, or stored together in the same transport 
vehicle or storage facility during the course of transportation.
    (3) The letter ``O'' in the Table indicates that these materials may 
not be loaded, transported, or stored together in the same transport 
vehicle or storage facility during the course of transportation unless 
separated in a manner that, in the event of leakage from packages under 
conditions normally incident to transportation, commingling of hazardous 
materials would not occur. Notwithstanding the methods of separation 
employed, Class 8 (corrosive) liquids may not be loaded above or 
adjacent to Class 4 (flammable) or Class 5 (oxidizing) materials; except 
that shippers may load truckload shipments of such materials together 
when it is known that the mixture of contents would not cause a fire or 
a dangerous evolution of heat or gas.
    (4) The ``*'' in the Table indicates that segregation among 
different Class 1 (explosive) materials is governed by the compatibility 
table in paragraph (f) of this section.
    (5) The note ``A'' in the second column of the Table means that, 
notwithstanding the requirements of the letter ``X'', ammonium nitrate 
(UN 1942) and ammonium nitrate fertilizer may be loaded or stored with 
Division 1.1 (Class A explosive) or Division 1.5 (blasting agents) 
materials.
    (6) When the Sec. 172.101 Table or Sec. 172.402 of this subchapter 
requires a package to bear a subsidiary hazard label, segregation 
appropriate to the subsidiary hazard must be applied when that 
segregation is more restrictive than that required by the primary 
hazard. However, hazardous materials of the same class may be stowed 
together without regard to segregation required for any secondary hazard 
if the materials are not capable of reacting dangerously with each other 
and causing combustion or dangerous evolution of heat, evolution of 
flammable, poisonous, or asphyxiant gases, or formation of corrosive or 
unstable materials.
    (f) Class 1 (explosive) materials shall not be loaded, transported, 
or stored together, except as provided in this section, and in 
accordance with the following Table:

[[Page 719]]



                                                  Compatibility Table For Class 1 (Explosive) Materials                                                 
--------------------------------------------------------------------------------------------------------------------------------------------------------
      Compatibility group           A         B         C         D         E        F        G        H        J        K        L        N        S   
--------------------------------------------------------------------------------------------------------------------------------------------------------
A.............................            X         X         X         X         X        X        X        X        X        X        X        X      
B.............................  X                   X         4         X         X        X        X        X        X        X        X        4/5    
C.............................  X         X                   2         2         X        X        X        X        X        X        3        4/5    
D.............................  X         4         2                   2         X        X        X        X        X        X        3        4/5    
E.............................  X         X         2         2                   X        X        X        X        X        X        3        4/5    
F.............................  X         X         X         X         X                  X        X        X        X        X        X        4/5    
G.............................  X         X         X         X         X         X                 X        X        X        X        X        4/5    
H.............................  X         X         X         X         X         X        X                 X        X        X        X        4/5    
J.............................  X         X         X         X         X         X        X        X                 X        X        X        4/5    
K.............................  X         X         X         X         X         X        X        X        X                 X        X        4/5    
L.............................  X         X         X         X         X         X        X        X        X        X        1        X        X      
N.............................  X         X         3         3         3         X        X        X        X        X        X                 4/5    
S.............................  X         4/5       4/5       4/5       4/5       4/5      4/5      4/5      4/5      4/5      X        4/5             

[[Page 720]]

                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (g) Instructions for using the compatibility table for Class 1 
(explosive) materials are as follows:
    (1) A blank space in the Table indicates that no restrictions apply.
    (2) The letter ``X'' in the Table indicates that explosives of 
different compatibility groups may not be carried on the same transport 
vehicle.
    (3) The numbers in the Table mean the following:
    (i) ``1'' means an explosive from compatibility group L shall only 
be carried on the same transport vehicle with an identical explosive.
    (ii) ``2'' means any combination of explosives from compatibility 
groups C, D, or E is assigned to compatibility group E.
    (iii) ``3'' means any combination of explosives from compatibility 
groups C, D, or E with those in compatibility group N is assigned to 
compatibility group D.
    (iv) ``4'' means Sec. 177.835(g) when transporting detonators.
    (v) ``5'' means Division 1.4S fireworks may not be loaded on the 
same transport vehicle with Division 1.1 or 1.2 (Class A explosive) 
materials.
    (h) Except as provided in paragraph (i) of this section, explosives 
of the same compatibility group but of different divisions may be 
transported together provided that the whole shipment is transported as 
though its entire contents were of the lower numerical division (i.e., 
Division 1.1 being lower than Division 1.2). For example, a mixed 
shipment of Division 1.2 (Class A explosive) materials and Division 1.4 
(Class C explosive) materials, both of compatibility group D, must be 
transported as Division 1.2 (Class A explosive) materials.
    (i) When Division 1.5 (blasting agent) materials, compatibility 
group D, are transported in the same freight container as Division 1.2 
(Class A explosive) materials, compatibility group D, the shipment must 
be transported as Division 1.1 (Class A explosive) materials, 
compatibility group D.
[Amdt. 177-78, 55 FR 52712, Dec. 21, 1990, as amended at 56 FR 66283, 
Dec. 20, 1991; 57 FR 45465, Oct. 1, 1992; 57 FR 47513, Oct. 16, 1992; 
Amdt. 177-78, 57 FR 59310, Dec. 15, 1992; Amdt. 177-82, 58 FR 50237, 
Sept. 24, 1993; Amdt. 177-83, 59 FR 49134, Sept. 26, 1994; Amdt. 177-87, 
61 FR 27175, May 30, 1996]



         Subpart D--Vehicles and Shipments in Transit; Accidents



Sec. 177.854  Disabled vehicles and broken or leaking packages; repairs.

    (See also Forbidden articles, Sec. 177.821).
    (a) Care of lading, hazardous materials. Whenever for any cause 
other than necessary traffic stops any motor vehicle transporting any 
hazardous material is stopped upon the traveled portion of any highway 
or shoulder thereof, special care shall be taken to guard the vehicle 
and its load or to take such steps as may be necessary to provide 
against hazard. Special effort shall be made to remove the motor vehicle 
to a place where the hazards of the materials being transported may be 
provided against. See Secs. 392.22, 392.24, and 392.25 of this title for 
warning devices required to be displayed on the highway.
    (b) Disposition of containers found broken or leaking in transit. 
When leaks occur in packages or containers during the course of 
transportation, subsequent to initial loading, disposition of such 
package or container shall be made by the safest practical means 
afforded under paragraphs (c), (d), and (e) of this section.
    (c) Repairing or overpacking packages. (1) Packages may be repaired 
when safe and practicable, such repairing to be in accordance with the 
best and safest practice known and available.
    (2) Packages of hazardous materials that are damaged or found 
leaking during transportation, and hazardous materials that have spilled 
or leaked during transportation, may be forwarded to destination or 
returned to the shipper in a salvage drum in accordance with the 
requirements of Sec. 173.3(c) of this subchapter.
    (d) Transportation of repaired packages. Any package repaired in 
accordance with the requirements of paragraph (c)(1) of this section, 
except as provided in Secs. 177.855(c), 177.856(c), and 177.858(b), may 
be transported to the nearest place at which it may safely be disposed 
of only in compliance with the following requirements:
    (1) The package must be safe for transportation.

[[Page 721]]

    (2) The repair of the package must be adequate to prevent 
contamination of or hazardous admixture with other lading transported on 
the same motor vehicle therewith.
    (3) If the carrier is not himself the shipper, the consignee's name 
and address must be plainly marked on the repaired package.
    (e) Disposition of unsafe broken packages. In the event any leaking 
package or container cannot be safely and adequately repaired for 
transportation or transported, it shall be stored pending proper 
disposition in the safest and most expeditious manner possible.
    (f) Stopped vehicles; other dangerous articles. Whenever any motor 
vehicle transporting Class 3 (flammable liquid), Class 4 (flammable 
solid), Class 5 (oxidizing), Class 8 (corrosive), Class 2 (gases), or 
Division 6.1 (poisonous) materials, is stopped for any cause other than 
necessary traffic stops upon the traveled portion of any highway, or a 
shoulder next thereto, the following requirements shall be complied with 
during the period of such stop:
    (1) For motor vehicles other than cargo tanks used for the 
transportation of Class 3 (flammable liquid) or Division 2.1 (flammable 
gas) materials and not transporting Division 1.1, 1.2, or 1.3 (Class A 
or B explosive) materials, warning devices must be set out in the manner 
prescribed by Sec. 392.22 of this title.
    (2) For cargo tanks used for the transportation of Class 3 
(flammable liquid) or Division 2.1 (flammable gas) materials, whether 
loaded or empty, and vehicles transporting Division 1.1, 1.2, or 1.3 
(explosive) materials, warning devices must be set out in the manner 
prescribed by Sec. 392.25 of this title.
    (g) Repair and maintenance of vehicles containing certain hazardous 
materials--(1) General. No person may use heat, flame or spark producing 
devices to repair or maintain the cargo or fuel containment system of a 
motor vehicle required to be placarded, other than COMBUSTIBLE, in 
accordance with subpart F of part 172 of this subchapter. As used in 
this section, ``containment system'' includes all vehicle components 
intended physically to contain cargo or fuel during loading or filling, 
transport, or unloading.
    (2) Repair and maintenance inside a building. No person may perform 
repair or maintenance on a motor vehicle subject to paragraph (g)(1) of 
this section inside a building unless:
    (i) The motor vehicle's cargo and fuel containment systems are 
closed (except as necessary to maintain or repair the vehicle's motor) 
and do not show any indication of leakage;
    (ii) A means is provided, and a person capable to operate the motor 
vehicle is available, to immediately remove the motor vehicle if 
necessary in an emergency;
    (iii) The motor vehicle is removed from the enclosed area upon 
completion of repair or maintenance work; and
    (iv) For motor vehicles loaded with Division 1.1, 1.2, or 1.3 (Class 
A or B explosive), Class 3 (flammable liquid), or Division 2.1 
(flammable gas) materials, all sources of spark, flame or glowing heat 
within the area of enclosure (including any heating system drawing air 
therefrom) are extinguished, made inoperable or rendered explosion-proof 
by a suitable method. Exception: Electrical equipment on the vehicle, 
necessary to accomplish the maintenance function, may remain 
operational.
    (h) No repair with flame unless gas-free. No repair of a cargo tank 
used for the transportation of any Class 3 (flammable liquid) or 
Division 6.1 (poisonous liquid) material, or any compartment thereof, or 
of any container for fuel of whatever nature, may be repaired by any 
method employing a flame, arc, or other means of welding, unless the 
tank or compartment shall first have been made gas-free.
[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.854, see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.

[[Page 722]]



Subpart E--Regulations Applying to Hazardous Material on Motor Vehicles 
                      Carrying Passengers for Hire



Sec. 177.870  Regulations for passenger carrying vehicles.

    (a) Vehicles transporting passengers and property. In addition to 
the regulations in parts 170-189 of this subchapter the following 
requirements shall apply to vehicles transporting passengers and 
property.
    (b) No Class 1 (explosive) materials or other hazardous materials on 
passenger-carrying vehicles, exceptions. No hazardous materials except 
small-arms ammunition, emergency shipments of drugs, chemicals and 
hospital supplies, and the accompanying munitions of war of the 
Departments of the Army, Navy, and Air Force of the United States 
Government, are authorized by parts 170-189 of this subchapter to be 
transported on motor vehicles carrying passengers for hire where other 
practicable means of transportation is available.
    (c) Class 1 (explosive) materials in passenger-carrying space 
forbidden. No Class 1 (explosive) material, except small-arms 
ammunition, may be carried in the passenger-carrying space of any motor 
vehicle transporting passengers for hire.
    (d) Hazardous materials on passenger carrying vehicles; quantity. 
Where no other practicable means of transportation is available the 
following articles in the quantities as shown may be transported in 
motor vehicles carrying passengers for hire in a space other than that 
provided for passengers: Not to exceed 45 kg (99 pounds) gross weight of 
any or all of the kinds of Class 1 (explosive) materials permitted to be 
transported by passenger-carrying aircraft or rail car may be 
transported on a motor vehicle transporting passengers: Provided, 
however, That samples of Class 1 (explosive) materials for laboratory 
examination, not to exceed two samples, or a total of no more than 100 
detonators, Division 1.4 (Class C explosive) materials at one time in a 
single motor vehicle, may be transported in a motor vehicle transporting 
passengers.
    (e) Articles other than Class 1 (explosive) materials on passenger-
carrying vehicles. The gross weight of any given class of hazardous 
material other than Class 1 (explosive) materials shall not exceed 45 kg 
(99 pounds), and the aggregate weight of all such other dangerous 
articles shall not exceed 225 kg (496 pounds). This provision does not 
apply to nontoxic, nonflammable refrigerants, when such refrigerant is 
for servicing operations of a motor carrier on whose motor vehicles the 
refrigerant is used. A cylinder secured against movement while in 
transit and not exceeding 113 kg (250 pounds) gross weight may be 
transported.
    (f) Division 6.1 (poisonous) or Division 2.3 (poisonous gas) 
materials on passenger-carrying vehicles. No motor carrier may transport 
any extremely dangerous Division 6.1 (poisonous) or Division 2.3 
(poisonous gas) material, or any paranitroaniline, in any amount, in or 
on any bus while engaged in the transportation of passengers; or any 
less dangerous Division 6.1 (poisonous) material, which is other than a 
liquid, in any amount exceeding an aggregate of 45 kg (99 pounds) gross 
weight in or on any such bus.
    (g) Class 7 (radioactive) materials. In addition to the limitations 
prescribed in paragraphs (b) and (e) of this section, no person may 
transport any Class 7 (radioactive) material requiring labels under 
Secs. 172.436, 172.438, and 172.440 of this subchapter in or on any 
motor vehicle carrying passengers for hire except where no other 
practicable means of transportation is available. Packages of Class 7 
(radioactive) materials must be stored only in the trunk or baggage 
compartment of the vehicle, and must not be stored in any compartment 
occupied by persons. Packages of Class 7 (radioactive) materials must be 
handled and placed in the vehicle as prescribed in Sec. 177.842.
[29 FR 18795, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 177.870 see the List of CFR Sections Affected appearing in the 
Finding Aids section of this volume.

[[Page 723]]









PART 178--SPECIFICATIONS FOR PACKAGINGS--Table of Contents




Sec.
178.1  Purpose and scope.
178.2  Applicability and responsibility.
178.3  Marking of packagings.

                          Subpart A--[Reserved]

      Subpart B--Specifications for Inside Containers, and Linings

178.33  Specification 2P; inner nonrefillable metal receptacles.
178.33-1  Compliance.
178.33-2  Type and size.
178.33-3  Inspection.
178.33-4  Duties of inspector.
178.33-5  Material.
178.33-6  Manufacture.
178.33-7  Wall thickness.
178.33-8  Tests.
178.33-9  Marking.
178.33a  Specification 2Q; inner nonrefillable metal receptacles.
178.33a-1  Compliance.
178.33a-2  Type and size.
178.33a-3  Inspection.
178.33a-4  Duties of inspector.
178.33a-5  Material.
178.33a-6  Manufacture.
178.33a-7  Wall thickness.
178.33a-8  Tests.
178.33a-9  Marking.

                 Subpart C--Specifications for Cylinders

178.35  General requirements for specification cylinders.
178.36  Specification 3A and 3AX seamless steel cylinders.
178.37  Specification 3AA and 3AAX seamless steel cylinders.
178.38  Specification 3B seamless steel cylinders.
178.39  Specification 3BN seamless nickel cylinders.
178.42  Specification 3E seamless steel cylinders.
178.44  Specification 3HT seamless steel cylinders for aircraft use.
178.45  Specification 3T seamless steel cylinders.
178.46  Specification 3AL seamless aluminum cylinders.
178.47  Specification 4DS welded stainless steel cylinders for aircraft 
          use.
178.50  Specification 4B welded or brazed steel cylinders.
178.51  Specification 4BA welded or brazed steel cylinders.
178.53  Specification 4D welded steel cylinders for aircraft use.
178.55  Specification 4B240ET welded or brazed cylinders.
178.56  Specification 4AA480 welded steel cylinders.
178.57  Specification 4L welded insulated cylinders.
178.58  Specification 4DA welded steel cylinders for aircraft use.
178.59  Specification 8 steel cylinders with porous fillings for 
          acetylene.
178.60  Specification 8AL steel cylinders with porous fillings for 
          acetylene.
178.61  Specification 4BW welded steel cylinders with electric-arc 
          welded longitudinal seam.
178.65  Specification 39 non-reusable (non-refillable) cylinders.
178.68  Specification 4E welded aluminum cylinders.

                        Subparts D--G  [Reserved]

              Subpart H--Specifications for Portable Tanks

178.245  Specification 51; steel portable tanks.
178.245-1  Requirements for design and construction.
178.245-2  Material.
178.245-3  Design pressure.
178.245-4  Tank mountings.
178.245-5  Protection of valves and accessories.
178.245-6  Name plate.
178.245-7  Report.
178.251--178.253-5  [Reserved]
178.255  Specification 60; steel portable tanks.
178.255-1  General requirements.
178.255-2  Material.
178.255-3  Expansion domes.
178.255-4  Closures for manholes and domes.
178.255-5  Bottom discharge outlets.
178.255-6  Loading and unloading accessories.
178.255-7  Protection of valves and accessories.
178.255-8  Safety devices.
178.255-9  Compartments.
178.255-10  Lining.
178.255-11  Tank mountings.
178.255-12  Pressure test.
178.255-13  Repair of tanks.
178.255-14  Marking.
178.255-15  Report.
178.270  Specification IM 101 and IM 102 steel portable tanks; general 
          design and construction requirements.
178.270-1  Specification requirements for IM 101 and IM 102 steel 
          portable tanks.
178.270-2  General.

[[Page 724]]

178.270-3  Materials of construction.
178.270-4  Structural integrity.
178.270-5  Minimum thickness of shells and heads.
178.270-6  Tank supports, frameworks and lifting attachments.
178.270-7  Joints in tank shells.
178.270-8  Protection of valves and accessories.
178.270-9  Inspection openings.
178.270-10  External design pressure.
178.270-11  Pressure and vacuum relief devices.
178.270-12  Valves, nozzles, piping, and gauging devices.
178.270-13  Testing.
178.270-14  Marking of tanks.
178.271  Specification IM 101 steel portable tanks.
178.271-1  General requirements.
178.272  Specification IM 102 steel portable tanks.
178.272-1  General requirements.
178.272-2  Minimum thickness of shells and heads.

                          Subpart I--[Reserved]

       Subpart J--Specifications for Containers for Motor Vehicle 
                             Transportation

178.318  Specification MC 201; container for detonators and percussion 
          caps.
178.318-1  Scope.
178.318-2  Container.
178.318-3  Marking.
178.320  General requirements applicable to all DOT specification cargo 
          tank motor vehicles.
178.337  Specification MC 331; cargo tank motor vehicle primarily for 
          transportation of compressed gases as defined in subpart G of 
          part 173 of this subchapter.
178.337-1  General requirements.
178.337-2  Material.
178.337-3  Structural integrity.
178.337-4  Joints.
178.337-5  Bulkheads, baffles and ring stiffeners.
178.337-6  Closure for manhole.
178.337-7  Overturn protection.
178.337-8  Outlets.
178.337-9  Pressure relief devices, piping, valves, hoses, and fittings.
178.337-10  Protection of fittings.
178.337-11  Emergency discharge control.
178.337-12  Shear section.
178.337-13  Supporting and anchoring.
178.337-14  Gauging devices.
178.337-15  Pumps and compressors.
178.337-16  Testing.
178.337-17  Marking.
178.337-18  Certification.
178.338  Specification MC-338; insulated cargo tank.
178.338-1  General requirements.
178.338-2  Material.
178.338-3  Structural integrity.
178.338-4  Joints.
178.338-5  Stiffening rings.
178.338-6  Manholes.
178.338-7  Openings.
178.338-8  Pressure relief devices, piping, valves, and fittings.
178.338-9  Holding time.
178.338-10  Collision damage protection.
178.338-11  Discharge control devices.
178.338-12  Shear section.
178.338-13  Supports and anchoring.
178.338-14  Gauging devices.
178.338-15  Cleanliness.
178.338-16  Inspection and testing.
178.338-17  Pumps and compressors.
178.338-18  Marking.
178.338-19  Certification.
178.340--178.343  [Reserved]
178.345  General design and construction requirements applicable to 
          Specification DOT 406 (Sec. 178.346), DOT 407 (Sec. 178.347), 
          and DOT 412 (Sec. 178.348) cargo tank motor vehicles.
178.345-1  General requirements.
178.345-2  Material and material thickness.
178.345-3  Structural integrity.
178.345-4  Joints.
178.345-5  Manhole assemblies.
178.345-6  Supports and anchoring.
178.345-7  Circumferential reinforcements.
178.345-8  Accident damage protection.
178.345-9  Pumps, piping, hoses and connections.
178.345-10  Pressure relief.
178.345-11  Tank outlets.
178.345-12  Gauging devices.
178.345-13  Pressure and leakage tests.
178.345-14  Marking.
178.345-15  Certification.
178.346  Specification DOT 406; cargo tank motor vehicle.
178.346-1  General requirements.
178.346-2  Material and thickness of material.
178.346-3  Pressure relief.
178.346-4  Outlets.
178.346-5  Pressure and leakage tests.
178.347  Specification DOT 407; cargo tank motor vehicle.
178.347-1  General requirements.
178.347-2  Material and thickness of material.
178.347-3  Manhole assemblies.
178.347-4  Pressure relief.
178.347-5  Pressure and leakage test.
178.348  Specification DOT 412; cargo tank motor vehicle.
178.348-1  General requirements.
178.348-2  Material and thickness of material.
178.348-3  Pumps, piping, hoses and connections.
178.348-4  Pressure relief.
178.348-5  Pressure and leakage test.

[[Page 725]]

   Subpart K--Specifications for Packagings for Class 7 (Radioactive) 
                                Materials

178.350  Specification 7A; general packaging, Type A.
178.352  Specification 6L; metal packaging.
178.352-1  General requirements.
178.352-2  Rated capacity.
178.352-3  General construction requirements.
178.352-4  Welding.
178.352-5  Closure.
178.352-6  Markings.
178.354  Specification 6M; metal packaging.
178.354-1  General requirements.
178.354-2  Rated capacity.
178.354-3  General construction requirements.
178.354-4  Closure.
178.354-5  Markings.
178.356  Specification 20PF phenolic-foam insulated, metal overpack.
178.356-1  General requirements.
178.356-2  Materials of construction and other requirements.
178.356-3  Tests.
178.356-4  Required markings.
178.356-5  Typical assembly detail.
178.358  Specification 21PF fire and shock resistant, phenolic-foam 
          insulated, metal overpack.
178.358-1  General requirements.
178.358-2  Materials of construction and other requirements.
178.358-3  Modification of Specification 21PF-1 overpacks.
178.358-4  Construction of Specification 21PF-1B overpacks.
178.358-5  Required markings.
178.358-6  Typical assembly detail.
178.360  Specification 2R; inside containment vessel.
178.360-1  General requirements.
178.360-2  Manufacture.
178.360-3  Dimensions.
178.360-4  Closure devices.
178.362  Specification 20WC wooden protective jacket.
178.362-1  General requirements.
178.362-2  Materials of construction.
178.362-3  Closure.
178.362-4  Tests.
178.362-5  Painting.
178.362-6  Marking.
178.362-7  Typical assembly sketches.
178.364  Specification 21WC wooden-steel protective overpack.
178.364-1  General requirements.
178.364-2  Materials of construction and other requirements.
178.364-3  Closure.
178.364-4  Tests.
178.364-5  Required marking.
178.364-6  Typical assembly detail.

      Subpart L--Non-bulk Performance-oriented Packaging Standards

Sec.
178.500  Purpose, scope and definitions.
178.502  Identification codes for packagings.
178.503  Marking of packagings.
178.504  Standards for steel drums.
178.505  Standards for aluminum drums.
178.506  Standards for metal drums other than steel or aluminum.
178.507  Standards for plywood drums.
178.508  Standards for fiber drums.
178.509  Standards for plastic drums and jerricans.
178.510  Standards for wooden barrels.
178.511  Standards for aluminum and steel jerricans.
178.512  Standards for steel or aluminum boxes.
178.513  Standards for boxes of natural wood.
178.514  Standards for plywood boxes.
178.515  Standards for reconstituted wood boxes.
178.516  Standards for fiberboard boxes.
178.517  Standards for plastic boxes.
178.518  Standards for woven plastic bags.
178.519  Standards for plastic film bags.
178.520  Standards for textile bags.
178.521  Standards for paper bags.
178.522  Standards for composite packagings with inner plastic 
          receptacles.
178.523  Standards for composite packagings with inner glass, porcelain, 
          or stoneware receptacles.

         Subpart M--Testing of Non-bulk Packagings and Packages

178.600  Purpose and scope.
178.601  General requirements.
178.602  Preparation of packagings and packages for testing.
178.603  Drop test.
178.604  Leakproofness test.
178.605  Hydrostatic pressure test.
178.606  Stacking test.
178.607  Cooperage test for bung-type wooden barrels.
178.608  Vibration standard.
178.609  Test requirements for packagings for infectious substances 
          (etiologic agents).

  Subpart N--Intermediate Bulk Container Performance-Oriented Standards

178.700  Purpose, scope and definitions.
178.702  Intermediate bulk container identification codes.
178.703  Marking of intermediate bulk containers.
178.704  General intermediate bulk container standards.
178.705  Standards for metal intermediate bulk containers.
178.706  Standards for rigid plastic intermediate bulk containers.

[[Page 726]]

178.707  Standards for composite intermediate bulk containers.
178.708  Standards for fiberboard intermediate bulk containers.
178.709  Standards for wooden intermediate bulk containers.
178.710  Standards for flexible intermediate bulk containers.

           Subpart O--Testing of Intermediate Bulk Containers

178.800  Purpose and scope.
178.801  General requirements.
178.802  Preparation of fiberboard intermediate bulk containers for 
          testing.
178.803  Testing and certification of intermediate bulk containers.
178.810  Drop test.
178.811  Bottom lift test.
178.812  Top lift test.
178.813  Leakproofness test.
178.814  Hydrostatic pressure test.
178.815  Stacking test.
178.816  Topple test.
178.817  Righting test.
178.818  Tear test.
178.819  Vibration test.


Appendix A to Part 178--Specifications for Steel
Appendix B to Part 178--Alternative Leakproofness Test Methods
Appendix C to Part 178--Nominal and Minimum Thicknesses of Steel Drums 
          and Jerricans

    Authority:  49 U.S.C. 5101-5127; 49 CFR 1.53.



Sec. 178.1  Purpose and scope.

    This part prescribes the manufacturing and testing specifications 
for packaging and containers used for the transportation of hazardous 
materials in commerce.
[Amdt. 178-40, 42 FR 2689, Jan. 13, 1977. Redesignated by Amdt. 178-97, 
55 FR 52715, Dec. 21, 1990]



Sec. 178.2  Applicability and responsibility.

    (a) Applicability. (1) The requirements of this part apply to 
packagings manufactured--
    (i) To a DOT specification, regardless of country of manufacture; or
    (ii) To a UN standard, for packagings manufactured within the United 
States. For UN standard packagings manufactured outside the United 
States, see Sec. 173.24(d)(2) of this subchapter. For UN standard 
packagings for which standards are not prescribed in this part, see 
Sec. 178.3(b).
    (2) A manufacturer of a packaging subject to the requirements of 
this part is primarily responsible for compliance with the requirements 
of this part. However, any person who performs a function prescribed in 
this part shall perform that function in accordance with this part.
    (b) Specification markings. When this part requires that a packaging 
be marked with a DOT specification or UN standard marking, marking of 
the packaging with the appropriate DOT or UN markings is the 
certification that--
    (1) Except as otherwise provided in this section, all requirements 
of the DOT specification or UN standard, including performance tests, 
are met; and
    (2) All functions performed by, or on behalf of, the person whose 
name or symbol appears as part of the marking conform to requirements 
specified in this part.
    (c) Notification. Except as specifically provided in Secs.  178.337-
18 and 178.345-10 of this part, the manufacturer or other person 
certifying compliance with the requirements of this part, and each 
subsequent distributor of that packaging shall--
    (1) Notify in writing each person to whom that packaging is 
transferred--
    (i) Of all requirements in this part not met at the time of 
transfer, and
    (ii) Of the type and dimensions of any closures, including gaskets, 
needed to satisfy performance test requirements.
    (2) Retain copies of each written notification for at least one year 
from date of issuance; and
    (3) Make copies of all written notifications available for 
inspection by a representative of the Department.
    (d) Except as provided in paragraph (c) of this section, a packaging 
not conforming to the applicable specifications or standards in this 
part may not be marked to indicate such conformance.
    (e) Definitions. For the purpose of this part--
    Manufacturer means the person whose name and address or symbol 
appears as part of the specification markings required by this part or, 
for a packaging marked with the symbol of an approval agency, the person 
on whose behalf the

[[Page 727]]

approval agency certifies the packaging.
    Specification markings mean the packaging identification markings 
required by this part including, where applicable, the name and address 
or symbol of the packaging manufacturer or approval agency.
    (f) No packaging may be manufactured or marked to a packaging 
specification that was in effect on September 30, 1991, and that was 
removed from this part 178 by a rule published in the Federal Register 
on December 21, 1990 and effective October 1, 1991.
[Amdt. 178-97, 55 FR 52715, Dec. 21, 1990; 56 FR 66284, Dec. 20, 1991, 
as amended by Amdt. No. 178-106, 59 FR 67519, Dec. 29, 1994; Amdt. 178-
117, 62 FR 14338, Mar. 26, 1997]



Sec. 178.3  Marking of packagings.

    (a) Each packaging represented as manufactured to a DOT 
specification or a UN standard must be marked with specification 
markings conforming to the applicable specification, and with the 
following:
    (1) In an unobstructed area, with letters, and numerals identifying 
the standards or specification (e.g. UN 1A1, DOT 4B240ET, etc.).
    (2) Unless otherwise specified in this part, with the name and 
address or symbol of the packaging manufacturer or, where specifically 
authorized, the symbol of the approval agency certifying compliance with 
a UN standard. Symbols, if used, must be registered with the Associate 
Administrator for Hazardous Materials Safety. Duplicative symbols are 
not authorized.
    (3) The markings must be stamped, embossed, burned, printed or 
otherwise marked on the packaging to provide adequate accessibility, 
permanency, contrast, and legibility so as to be readily apparent and 
understood.
    (4) Unless otherwise specified, letters and numerals must be at 
least 12.0 mm (0.47 inches) in height except that for packagings of less 
than or equal to 30 L (7.9 gallons) capacity for liquids or 30 kg (66 
pounds) capacity for solids the height must be at least 6.0 mm (0.2 
inches). For packagings having a capacity of 5 L (1 gallon) or 5 kg (11 
pounds) or less, letters and numerals must be of an appropriate size.
    (5) For packages with a gross mass of more than 30 kg (66 pounds), 
the markings or a duplicate thereof must appear on the top or on a side 
of the packaging.
    (b) A UN standard packaging for which the UN standard is set forth 
in this part may be marked with the United Nations symbol and other 
specification markings only if it fully conforms to the requirements of 
this part. A UN standard packaging for which the UN standard is not set 
forth in this part may be marked with the United Nations symbol and 
other specification markings for that standard as provided in the ICAO 
Technical Instructions or Annex 1 of the IMDG Code subject to the 
following conditions:
    (1) The U.S. manufacturer must establish that the packaging conforms 
to the applicable provisions of the ICAO Technical Instructions or Annex 
1 of the IMDG Code, respectively.
    (2) If an indication of the name of the manufacturer or other 
identification of the packaging as specified by the competent authority 
is required, the name and address or symbol of the manufacturer or the 
approval agency certifying compliance with the UN standard must be 
entered. Symbols, if used, must be registered with the Associate 
Administrator for Hazardous Materials Safety.
    (3) The letters ``USA'' must be used to indicate the State 
authorizing the allocation of the specification marks if the packaging 
is manufactured in the United States.
    (c) Where a packaging conforms to more than one UN standard or DOT 
specification, the packaging may bear more than one marking, provided 
the packaging meets all the requirements of each standard or 
specification. Where more than one marking appears on a packaging, each 
marking must appear in its entirety.
    (d) No person may mark or otherwise certify a packaging or container 
as meeting the requirements of a manufacturing exemption unless that 
person is the holder of or a party to that exemption, an agent of the 
holder or

[[Page 728]]

party for the purpose of marking or certification, or a third party 
tester.
[Amdt. 178-97, 55 FR 52716, Dec. 21, 1990; 56 FR 66284, Dec. 20, 1991, 
as amended by Amdt. No. 178-106, 59 FR 67519, Dec. 29, 1994; Amdt. 178-
113, 61 FR 21102, May 9, 1996]



                          Subpart A--[Reserved]



      Subpart B--Specifications for Inside Containers, and Linings

    Source:  29 FR 18823, Dec. 29, 1964, unless otherwise noted. 
Redesignated at 32 FR 5606, Apr. 5, 1967.



Sec. 178.33  Specification 2P; inner nonrefillable metal receptacles.



Sec. 178.33-1  Compliance.

    (a) Required in all details.
    (b) [Reserved]



Sec. 178.33-2  Type and size.

    (a) Single-trip inside containers. Must be seamless, or with seams, 
welded, soldered, brazed, double seamed, or swedged.
    (b) The maximum capacity of containers in this class shall not 
exceed one liter (61.0 cubic inches). The maximum inside diameter shall 
not exceed 3 inches.
[29 FR 18813, Dec. 29, 1964, as amended by Order 71, 31 FR 9074, July 1, 
1966. Redesignated at 32 FR 5606, Apr. 5, 1967, and amended by Amdt. 
178-101, 58 FR 50237, Sept. 24, 1993]



Sec. 178.33-3  Inspection.

    (a) By competent inspector.
    (b) [Reserved]



Sec. 178.33-4  Duties of inspector.

    (a) To inspect material and completed containers and witness tests, 
and to reject defective materials or containers.
    (b) [Reserved]



Sec. 178.33-5  Material.

    (a) Uniform quality steel plate such as black plate, electro-tin 
plate, hot dipped tin plate, tern plate or other commercially accepted 
can making plate; or nonferrous metal of uniform drawing quality.
    (b) Material with seams, cracks, laminations or other injurious 
defects not authorized.



Sec. 178.33-6  Manufacture.

    (a) By appliances and methods that will assure uniformity of 
completed containers; dirt and scale to be removed as necessary; no 
defect acceptable that is likely to weaken the finished container 
appreciably; reasonably smooth and uniform surface finish required.
    (b) Seams when used must be as follows:
    (1) Circumferential seams: By welding, swedging, brazing, soldering, 
or double seaming.
    (2) Side seams: By welding, brazing, or soldering.
    (c) Ends: The ends shall be of pressure design.
[29 FR 18823, Dec. 29, 1964, as amended by Order 71, 31 FR 9074, July 1, 
1966. Redesignated at 32 FR 5606, Apr. 5, 1967] 



Sec. 178.33-7  Wall thickness.

    (a) The minimum wall thickness for any container shall be 0.007 
inch.
    (b) [Reserved]
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33-8  Tests.

    (a) One out of each lot of 25,000 containers or less, successively 
produced per day shall be pressure tested to destruction and must not 
burst below 240 pounds per square inch gauge pressure. The container 
tested shall be complete with end assembled.
    (b) Each such 25,000 containers or less, successively produced per 
day, shall constitute a lot and if the test container shall fail, the 
lot shall be rejected or ten additional containers may be selected at 
random and subjected to the test under which failure occurred. These 
containers shall be complete with ends assembled. Should any of the ten 
containers thus tested fail, the entire lot must be rejected. All 
containers constituting a lot shall be of like material, size, design 
construction, finish, and quality.
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]

[[Page 729]]



Sec. 178.33-9  Marking.

    (a) By means of printing, lithographing, embossing, or stamping, 
each container must be marked to show:
    (1) DOT-2P.
    (2) Name or symbol of person making the mark specified in paragraph 
(a)(1) of this section. Symbol, if used, must be registered with the 
Associate Administrator for Hazardous Materials Safety.
    (b) [Reserved]
[Amdt. 178-40, 41 FR 38181, Sept. 9, 1976, as amended by Amdt. 178-97, 
56 FR 66287, Dec. 20, 1991]



Sec. 178.33a  Specification 2Q; inner nonrefillable metal receptacles.



Sec. 178.33a-1  Compliance.

    (a) Required in all details.
    (b) [Reserved]
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33a-2  Type and size.

    (a) Single-trip inside containers. Must be seamless, or with seams 
welded, soldered, brazed, double seamed, or swedged.
    (b) The maximum capacity of containers in this class shall not 
exceed one liter (61.0 cubic inches). The maximum inside diameter shall 
not exceed 3 inches.
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967, and amended by Amdt. 178-43, 42 FR 42208, Aug. 22, 1977; Amdt. 
178-101, 58 FR 50237, Sept. 24, 1993]



Sec. 178.33a-3  Inspection.

    (a) By competent inspector.
    (b) [Reserved]
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33a-4  Duties of inspector.

    (a) To inspect material and completed containers and witness tests, 
and to reject defective materials or containers.
    (b) [Reserved]
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33a-5  Material.

    (a) Uniform quality steel plate such as black plate, electrotin 
plate, hot dipped tinplate, ternplate or other commercially accepted can 
making plate; or nonferrous metal of uniform drawing quality.
    (b) Material with seams, cracks, laminations or other injurious 
defects not authorized.
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33a-6  Manufacture.

    (a) By appliances and methods that will assure uniformity of 
completed containers; dirt and scale to be removed as necessary; no 
defect acceptable that is likely to weaken the finished container 
appreciably; reasonably smooth and uniform surface finish required.
    (b) Seams when used must be as follows:
    (1) Circumferential seams. By welding, swedging, brazing, soldering, 
or double seaming.
    (2) Side seams. By welding, brazing or soldering.
    (c) Ends. The ends shall be of pressure design.
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33a-7  Wall thickness.

    (a) The minimum wall thickness for any container shall be 0.008 
inch.
    (b) [Reserved]
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33a-8  Tests.

    (a) One out of each lot of 25,000 containers or less, successively 
produced per day, shall be pressure tested to destruction and must not 
burst below 270 pounds per square inch gauge pressure. The container 
tested shall be complete with end assembled.
    (b) Each such 25,000 containers or less, successively produced per 
day, shall constitute a lot and if the test container shall fail, the 
lot shall be rejected or ten additional containers may be selected at 
random and subjected to the test under which failure occurred. These 
containers shall be complete with ends assembled. Should any of the

[[Page 730]]

ten containers thus tested fail, the entire lot must be rejected. All 
containers constituting a lot shall be of like material, size, design, 
construction, finish and quality.
[Order 71, 31 FR 9074, July 1, 1966. Redesignated at 32 FR 5606, Apr. 5, 
1967]



Sec. 178.33a-9  Marking.

    (a) By means of printing, lithographing, embossing, or stamping, 
each container must be marked to show:
    (1) DOT-2Q.
    (2) Name or symbol of person making the mark specified in paragraph 
(a)(1) of this section. Symbol, if used, must be registered with the 
Associate Administrator for Hazardous Materials Safety.
    (b) [Reserved]
[Amdt. 178-40, 41 FR 38181, Sept. 9, 1976, as amended by Amdt. 178-97, 
56 FR 66287, Dec. 20, 1991]



                 Subpart C--Specifications for Cylinders

    Source:  Amdt. 178-114, 61 FR 25942, May 23, 1996, unless otherwise 
noted.



Sec. 178.35  General requirements for specification cylinders.

    (a) Compliance. Compliance with the requirements of this subpart is 
required in all details.
    (b) Inspections and analyses. Chemical analyses and tests as 
specified must be made within the United States unless otherwise 
approved in writing by the Associate Administrator, in accordance with 
Sec. 173.300b of this subchapter. Inspections and verifications must be 
performed by--
    (1) An independent inspection agency approved in writing by the 
Associate Administrator, in accordance with Sec. 173.300a of this 
subchapter; or
    (2) For DOT Specifications 3B, 3BN, 3E, 4B, 4BA, 4D (water capacity 
less than 1,100 cubic inches), 4B240ET, 4AA480, 4L, 8, 8AL, 4BW, 39 
(marked service pressure 900 p.s.i.g. or lower) and 4E manufactured in 
the United States, a competent inspector of the manufacturer.
    (c) Duties of inspector. The inspector shall determine that each 
cylinder made is in conformance with the applicable specification. 
Except as otherwise specified in the applicable specification, the 
inspector shall perform the following:
    (1) Inspect all material and reject any not meeting applicable 
requirements. For cylinders made by the billet-piercing process, billets 
must be inspected and shown to be free from pipe, cracks, excessive 
segregation and other injurious defects after parting or, when 
applicable, after nick and cold break.
    (2) Verify the material of construction meets the requirements of 
the applicable specification by--
    (i) Making a chemical analysis of each heat of material;
    (ii) Obtaining a certified chemical analysis from the material 
manufacturer for each heat of material (a ladle analysis is acceptable); 
or
    (iii) If an analysis is not provided for each heat of material by 
the material manufacturer, by making a check analysis of a sample from 
each coil, sheet, or tube.
    (3) Verify compliance of cylinders with the applicable specification 
by--
    (i) Verifying identification of material is proper;
    (ii) Inspecting the inside of the cylinder before closing in ends;
    (iii) Verifying that the heat treatment is proper;
    (iv) Obtaining samples for all tests and check chemical analyses;
    (v) Witnessing all tests;
    (vi) Verify threads by gauge;
    (vii) Reporting volumetric capacity and tare weight (see report 
form) and minimum thickness of wall noted; and
    (viii) Verifying that each cylinder is marked in accordance with the 
applicable specification.
    (4) Furnish complete test reports required by this subpart to the 
maker of the cylinder and, upon request, to the purchaser. The test 
report must be retained by the inspector for fifteen years from the 
original test date of the cylinder.
    (d) Defects. A cylinder may not be constructed of material with 
seams, cracks, laminations, or other injurious defects.
    (e) Safety devices. Safety devices and protection for valves, safety 
devices, and other connections, if applied, must

[[Page 731]]

be as required or authorized by the appropriate specification, and as 
required in Secs. 173.34 and 173.301 of this subchapter.
    (f) Markings. Markings on a DOT Specification cylinder must conform 
to applicable requirements.
    (1) Each cylinder must be marked with the following information:
    (i) The DOT specification marking must appear first, followed 
immediately by the service pressure. For example, DOT-3A1800.
    (ii) The serial number must be placed just below or immediately 
following the DOT specification marking.
    (iii) A symbol (letters) must be placed just below, immediately 
before or following the serial number. Other variations in sequence of 
markings are authorized only when necessitated by a lack of space. The 
symbol and numbers must be those of the manufacturer. The symbol must be 
registered with the Associate Administrator; duplications are not 
authorized.
    (iv) The inspector's official mark and date of test (such as 5-95 
for May 1995) must be placed near the serial number. This information 
must be placed so that dates of subsequent tests can be easily added. An 
example of the markings prescribed in this paragraph (f)(1) is as 
follows:
DOT-3A1800
1234
XY
AB 5-95

Or;

DOT-3A1800-1234-XY
    AB 5-95

Where:

DOT-3A=specification number
1800=service pressure
1234=serial number
xy=symbol of manufacturer
AB=inspector's mark
5-95=date of test

    (2) Additional required marking must be applied to the cylinder as 
follows:
    (i) The word ``spun'' or ``plug'' must be placed near the DOT 
specification marking when an end closure in the finished cylinder has 
been welded by the spinning process, or effected by plugging.
    (ii) As prescribed in specification 3HT (Sec. 178.44) or 3T 
(Sec. 178.45), if applicable.
    (3) Marking exceptions.
    (i) A DOT 3E cylinder is not required to be marked with the 
inspector mark.
    (ii) An identifying lot number may be marked on the cylinder in 
place of a serial number for cylinders not over 2 inches outside 
diameter or for cylinders with a volumetric capacity not exceeding 60 
cubic inches. Each lot shall not have over 500 cylinders.
    (4) Unless otherwise specified in the applicable specification, the 
markings on each cylinder must be stamped plainly and permanently on the 
shoulder, top head, or neck.
    (5) The size of each marking must be at least 0.25 inch or as space 
permits.
    (6) Other markings are authorized provided they are made in low 
stress areas other than the side wall and are not of a size and depth 
that will create harmful stress concentrations. Such marks may not 
conflict with any DOT required markings.
    (g) Inspector's report. Each inspector shall prepare a report 
containing, at a minimum, the applicable information listed in CGA 
Pamphlet C-11 or, until October 1, 1997, in accordance with the 
applicable test report requirements of this subchapter in effect on 
September 30, 1996. Any additional information or markings that are 
required by the applicable specification must be shown on the test 
report. The signature of the inspector on the reports certifies that the 
processes of manufacture and heat treatment of cylinders were observed 
and found satisfactory.
    (h) Report retention. The manufacturer of the cylinders shall retain 
the reports required by this subpart for 15 years from the original test 
date of the cylinder.



Sec. 178.36  Specification 3A and 3AX seamless steel cylinders.

    (a) Type size and service pressure. In addition to the requirements 
of Sec. 178.35, cylinders must conform to the following:
    (1) A DOT-3A cylinder is a seamless steel cylinder with a water 
capacity (nominal) not over 1,000 pounds and a service pressure of at 
least 150 pounds per square inch.
    (2) A DOT-3AX is a seamless stainless steel cylinder with a water 
capacity not less than 1,000 pounds and a service

[[Page 732]]

pressure of at least 500 pounds per square inch, conforming to the 
following requirements:
    (i) Assuming the cylinder is to be supported horizontally at its two 
ends only and to be uniformly loaded over its entire length consisting 
of the weight per unit of length of the straight cylindrical portion 
filled with water and compressed to the specified test pressure; the sum 
of two times the maximum tensile stress in the bottom fibers due to 
bending, plus that in the same fibers (longitudinal stress), due to 
hydrostatic test may not exceed 80 percent of the minimum yield strength 
of the steel at such maximum stress. Wall thickness must be increased 
when necessary to meet the requirement.
    (ii) To calculate the maximum longitudinal tensile stress due to 
bending, the following formula must be used:

S=Mc/I

    (iii) To calculate the maximum longitudinal tensile stress due to 
hydrostatic test pressure, the following formula must be used:

S=A1 P/A2

where:

S=tensile stress--p.s.i.;
M=bending moment-inch pounds--(wl2)/8;
w=weight per inch of cylinder filled with water;
l=length of cylinder-inches;
c=radius (D)/(2) of cylinder-inches;
I=moment of inertia--0.04909 (D4-d4) inches 
fourth;
D=outside diameter-inches;
d=inside diameter-inches;
A1=internal area in cross section of cylinder-square inches;
A2=area of metal in cross section of cylinder-square inches;
P=hydrostatic test pressure-p.s.i.

    (b) Steel. Open-hearth or electric steel of uniform quality must be 
used. Content percent may not exceed the following: Carbon, 0.55; 
phosphorous, 0.045; sulphur, 0.050.
    (c) Identification of material. Material must be identified by any 
suitable method, except that plates and billets for hot-drawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No fissure or other defect is permitted 
that is likely to weaken the finished cylinder appreciably. A reasonably 
smooth and uniform surface finish is required. If not originally free 
from such defects, the surface may be machined or otherwise treated to 
eliminate these defects. The thickness of the bottoms of cylinders 
welded or formed by spinning is, under no condition, to be less than two 
times the minimum wall thickness of the cylindrical shell; such bottom 
thicknesses must be measured within an area bounded by a line 
representing the points of contact between the cylinder and floor when 
the cylinder is in a vertical position.
    (e) Welding or brazing. Welding or brazing for any purpose 
whatsoever is prohibited except as follows:
    (1) Welding or brazing is authorized for the attachment of neckrings 
and footrings which are non-pressure parts and only to the tops and 
bottoms of cylinders having a service pressure of 500 pounds per square 
inch or less. Cylinders, neckrings, and footrings must be made of 
weldable steel, the carbon content of which may not exceed 0.25 percent 
except in the case of 4130X steel which may be used with proper welding 
procedures.
    (2) As permitted in paragraph (d) of this section.
    (3) Cylinders used solely in anhydrous ammonia service may have a 
\1/2\ inch diameter bar welded within their concave bottoms.
    (f) Wall thickness. For cylinders with service pressure less than 
900 pounds, the wall stress may not exceed 24,000 pounds per square 
inch. A minimum wall thickness of 0.100 inch is required for any 
cylinder over 5 inches outside diameter. Wall stress calculation must be 
made by using the following formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test or 450 pounds 
per square inch whichever is the greater;
D=outside diameter in inches;
d=inside diameter in inches.


[[Page 733]]


    (g) Heat treatment. The completed cylinder must be uniformly and 
properly heat-treated prior to tests.
    (h) Openings in cylinders and connections (valves, fuse plugs, etc.) 
for those openings. Threads are required on openings.
    (1) Threads must be clean cut, even, without checks, and to gauge.
    (2) Taper threads, when used, must be of length not less than as 
specified for American Standard taper pipe threads.
    (3) Straight threads having at least 6 engaged threads are 
authorized. Straight threads must have a tight fit and calculated shear 
strength of at least 10 times the test pressure of the cylinder. 
Gaskets, adequate to prevent leakage, are required.
    (i) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test, as follows:
    (1) The test must be by water-jacket, or other suitable methods, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus the test pressure cannot be maintained the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.
    (3) Permanent, volumetric expansion may not exceed 10 percent of the 
total volumetric expansion at test pressure.
    (4) Each cylinder must be tested to at least \5/3\ times service 
pressure.
    (j) Flattening test. A flattening test must be performed on one 
cylinder taken at random out or each lot of 200 or less, by placing the 
cylinder between wedge shaped knife edges having a 60 deg. included 
angle, rounded to \1/2\-inch radius. The longitudinal axis of the 
cylinder must be at a 90-degree angle to knife edges during the test. 
For lots of 30 or less, flattening tests are authorized to be made on a 
ring at least 8 inches long cut from each cylinder and subjected to same 
heat treatment as the finished cylinder.
    (k) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material as follows:
    (1) The test is required on 2 specimens cut from 1 cylinder taken at 
random out of each lot of 200 or less. For lots of 30 or less, physical 
tests are authorized to be made on a ring at least 8 inches long cut 
from each cylinder and subjected to same heat treatment as the finished 
cylinder.
    (2) Specimens must conform to the following:
    (i) Gauge length of 8 inches with a width of not over 1\1/2\ inches, 
a gauge length of 2 inches with a width of not over 1\1/2\ inches, or a 
gauge length of at least 24 times thickness with width not over 6 times 
thickness is authorized when cylinder wall is not over \3/16\ inch 
thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within 1 inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2-percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load

[[Page 734]]

and adding thereto 0.2 percent of the gauge length. Elastic extension 
calculations must be based on an elastic modulus of 30,000,000. In the 
event of controversy the entire stress-strain diagram must be plotted 
and the yield strength determined from the 0.2 percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch and the strain indicator reading must be set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (l) Acceptable results for physical and flattening tests. Either of 
the following is an acceptable result:
    (1) An elongation at least 40 percent for a 2-inch gauge length or 
at least 20 percent in other cases and yield strength not over 73 
percent of tensile strength. In this instance, the flattening test is 
not required.
    (2) An elongation at least 20 percent for a 2-inch gauge length or 
10 percent in other cases and a yield strength not over 73 percent of 
tensile strength. In this instance, the flattening test is required, 
without cracking, to 6 times the wall thickness.
    (m) Leakage test. All spun cylinders and plugged cylinders must be 
tested for leakage by gas or air pressure after the bottom has been 
cleaned and is free from all moisture subject to the following 
conditions and limitations:
    (1) Pressure, approximately the same as but no less than service 
pressure, must be applied to one side of the finished bottom over an 
area of at least \1/16\ of the total area of the bottom but not less 
than \3/4\ inch in diameter, including the closure, for at least 1 
minute, during which time the other side of the bottom exposed to 
pressure must be covered with water and closely examined for indications 
of leakage. Except as provided in paragraph (n) of this section, a 
cylinder that is leaking must be rejected.
    (2) A spun cylinder is one in which an end closure in the finished 
cylinder has been welded by the spinning process.
    (3) A plugged cylinder is one in which a permanent closure in the 
bottom of a finished cylinder has been effected by a plug.
    (4) As a safety precaution, if the manufacturer elects to make this 
test before the hydrostatic test, the manufacturer should design the 
test apparatus so that the pressure is applied to the smallest area 
practicable, around the point of closure, and so as to use the smallest 
possible volume of air or gas.
    (n) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinders. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding or spinning is not authorized. Spun 
cylinders rejected under the provisions of paragraph (m) of this section 
may be removed from the spun cylinder category by drilling to remove 
defective material, tapping and plugging.
[Amdt. 178-114, 61 FR 25942, May 23, 1996, as amended at 62 FR 51561, 
Oct. 1, 1997]



Sec. 178.37  Specification 3AA and 3AAX seamless steel cylinders.

    (a) Type, size and service pressure. In addition to the requirements 
of Sec. 178.35, cylinders must conform to the following:
    (1) A DOT-3AA cylinder is a seamless steel cylinder with a water 
capacity (nominal) of not over 1,000 pounds and a service pressure of at 
least 150 pounds per square inch.
    (2) A DOT-3AAX cylinder is a seamless steel cylinder with a water 
capacity of not less than 1,000 pounds and a service pressure of at 
least 500 pounds per square inch, conforming to the following 
requirements:
    (i) Assuming the cylinder is to be supported horizontally at its two 
ends only and to be uniformly loaded over its entire length consisting 
of the weight per unit of length of the straight cylindrical portion 
filled with water and compressed to the specified test pressure; the sum 
of two times the maximum tensile stress in the bottom fibers due to 
bending, plus that in the same fibers (longitudinal stress), due to 
hydrostatic test pressure may not exceed 80 percent of the minimum yield 
strength of the steel at such maximum stress. Wall thickness must be 
increased when necessary to meet the requirement.

[[Page 735]]

    (ii) To calculate the maximum tensile stress due to bending, the 
following formula must be used:

S=Mc/I
    (iii) To calculate the maximum longitudinal tensile stress due to 
hydrostatic test pressure, the following formula must be used:

S=A\1\P/A\2\

Where:
S=tensile stress-p.s.i.;
M=bending moment-inch pounds (wl\2\)/8;
w=weight per inch of cylinder filled with water;
l=length of cylinder-inches;
c=radius (D)/(2) of cylinder-inches;
I=moment of inertia-0.04909 (D\4\-d\4\) inches fourth;
D=outside diameter-inches;
d=inside diameter-inches;
A\1\=internal area in cross section of cylinder-square inches;
A\2\=area of metal in cross section of cylinder-square inches;
P=hydrostatic test pressure-p.s.i.

    (b) Authorized steel. Open-hearth, basic oxygen, or electric steel 
of uniform quality must be used. A heat of steel made under the 
specifications in Table 1 of this paragraph (b), check chemical analysis 
of which is slightly out of the specified range, is acceptable, if 
satisfactory in all other respects, provided the tolerances shown in 
Table 2 of this paragraph (b) are not exceeded. When a carbon-boron 
steel is used, a hardenability test must be performed on the first and 
last ingot of each heat of steel. The results of this test must be 
recorded on the Record of Chemical Analysis of Material for Cylinders 
required by Sec. 178.35. This hardness test must be made \5/16\-inch 
from the quenched end of the Jominy quench bar and the hardness must be 
at least Rc 33 and no more than Rc 53. The following chemical analyses 
are authorized:

                                                             Table 1.--Authorized Materials                                                             
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                        Inter- mediate  
           Designation              4130X (percent)    NE-8630 (percent)    9115 (percent)      9125 (percent)       Carbon-boron          manganese    
                                     (see Note 1)        (see Note 1)        (see Note 1)        (see Note 1)          (percent)           (percent)    
--------------------------------------------------------------------------------------------------------------------------------------------------------
Carbon..........................  0.25/0.35.........  0.28/0.33.........  0.10/0.20.........  0.20/0.30.........  0.27-0.37.........  0.40 max.         
Manganese.......................  0.40/0.90.........  0.70/0.90.........  0.50/0.75.........  0.50/0.75.........  0.80-1.40.........  1.35/1.65.        
Phosphorus......................  0.04 max..........  0.04 max..........  0.04 max..........  0.04 max..........  0.035 max.........  0.04 max.         
Sulfur..........................  0.05 max..........  0.04 max..........  0.04 max..........  0.04 max..........  0.045 max.........  0.05 max.         
Silicon.........................  0.15/0.35.........  0.20/0.35.........  0.60/0.90.........  0.60/0.90.........  0.3 max...........  0.10/0.30.        
Chromium........................  0.80/1.10.........  0.40/0.60.........  0.50/0.65.........  0.50/0.65.                                                
Molybdenum......................  0.15/0.25.........  0.15/0.25                                                                                         
Zirconium.......................  ..................  ..................  0.05/0.15.........  0.05/0.15                                                 
Nickel..........................  ..................  0.40/0.70.........                                                                                
Boron...........................  ..................  ..................  ..................  ..................  0.0005/0.003.                         
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note 1: This designation may not be restrictive and the commercial steel is limited in analysis as shown in this Table.                                 


                                       Table 2.--Check Analysis Tolerances                                      
----------------------------------------------------------------------------------------------------------------
                                                                                        Tolerance (percent) over
                                                                                          the maximum limit or  
                                                                                         under the minimum limit
                    Element                      Limit or maximum specified  (percent) -------------------------
                                                                                           Under         Over   
                                                                                          minimum      maximum  
                                                                                           limit        limit   
----------------------------------------------------------------------------------------------------------------
Carbon........................................  To 0.15 incl..........................         0.02         0.03
                                                Over 0.15 to 0.40 incl................          .03          .04
Manganese.....................................  To 0.60 incl..........................          .03          .03
                                                Over 0.60 to 1.15 incl................         0.04         0.04
                                                Over 1.15 to 2.50 incl................         0.05         0.05
Phosphorus\1\.................................  All ranges............................  ...........          .01
Sulphur.......................................  All ranges............................  ...........          .01
Silicon.......................................  To 0.30 incl..........................          .02          .03
                                                Over 0.30 to 1.00 incl................          .05          .05
Nickel........................................  To 1.00 incl..........................          .03          .03
Chromium......................................  To 0.90 incl..........................          .03          .03
                                                0.90 to 2.90 incl.....................          .05          .05
Molybdenum....................................  To 0.20 incl..........................          .01          .01
                                                Over 0.20 to 0.40.....................          .02          .02
Zirconium.....................................  All ranges............................          .01          .05
----------------------------------------------------------------------------------------------------------------
\1\ Rephosphorized steels not subject to check analysis for phosphorus.                                         

[[Page 736]]

                                                                                                                

    (c) Identification of material. Material must be identified by any 
suitable method except that plates and billets for hot-drawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No fissure or other defects is permitted 
that is likely to weaken the finished cylinder appreciably. A reasonably 
smooth and uniform surface finish is required. If not originally free 
from such defects, the surface may be machined or otherwise treated to 
eliminate these defects. The thickness of the bottoms of cylinders 
welded or formed by spinning is, under no condition, to be less than two 
times the minimum wall thickness of the cylindrical shell; such bottom 
thicknesses must be measured within an area bounded by a line 
representing the points of contact between the cylinder and floor when 
the cylinder is in a vertical position.
    (e) Welding or brazing. Welding or brazing for any purpose 
whatsoever is prohibited except as follows:
    (1) Welding or brazing is authorized for the attachment of neckrings 
and footrings which are non-pressure parts, and only to the tops and 
bottoms of cylinders having a service pressure of 500 pounds per square 
inch or less. Cylinders, neckrings, and footrings must be made of 
weldable steel, the carbon content of which may not exceed 0.25 percent 
except in the case of 4130X steel which may be used with proper welding 
procedure.
    (2) As permitted in paragraph (d) of this section.
    (f) Wall thickness. The thickness of each cylinder must conform to 
the following:
    (1) For cylinders with a service pressure of less than 900 pounds, 
the wall stress may not exceed 24,000 pounds per square inch. A minimum 
wall thickness of 0.100 inch is required for any cylinder with an 
outside diameter of over 5 inches.
    (2) For cylinders with service pressure of 900 p.s.i. or more the 
minimum wall must be such that the wall stress at the minimum specified 
test pressure may not exceed 67 percent of the minimum tensile strength 
of the steel as determined from the physical tests required in 
paragraphs (k) and (l) of this section and must be not over 70,000 
p.s.i.
    (3) Calculation must be made by the formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test or 450 pounds 
per square inch whichever is the greater;
D=outside diameter in inches;
d=inside diameter in inches.

    (g) Heat treatment. The completed cylinders must be uniformly and 
properly heat treated prior to tests. Heat treatment of cylinders of the 
authorized analyses must be as follows:
    (1) All cylinders must be quenched by oil, or other suitable medium 
except as provided in paragraph (g)(5) of this section.
    (2) The steel temperature on quenching must be that recommended for 
the steel analysis, but may not exceed 1750  deg.F.
    (3) All steels must be tempered at a temperature most suitable for 
that steel.
    (4) The minimum tempering temperature may not be less than 1000 
deg.F except as noted in paragraph (1)(vi) of this section.
    (5) Steel 4130X may be normalized at a temperature of 1650  deg.F 
instead of being quenched and cylinders so normalized need not be 
tempered.
    (6) Intermediate manganese steels may be tempered at temperatures 
not less than 1150  deg.F., and after heat treating each cylinder must 
be submitted to a magnetic test to detect the presence of quenching 
cracks. Cracked cylinders must be rejected and destroyed.
    (7) Except as otherwise provided in paragraph (g)(6) of this 
section, all cylinders, if water quenched or quenched with a liquid 
producing a cooling rate in excess of 80 percent of the cooling rate of 
water, must be inspected by the magnetic particle, dye penetrant or 
ultrasonic method to detect the presence

[[Page 737]]

of quenching cracks. Any cylinder designed to the requirements for 
specification 3AA and found to have a quenching crack must be rejected 
and may not be requalified. Cylinders designed to the requirements for 
specification 3AAX and found to have cracks must have cracks removed to 
sound metal by mechanical means. Such specification 3AAX cylinders will 
be acceptable if the repaired area is subsequently examined to assure no 
defect, and it is determined that design thickness requirements are met.
    (h) Openings in cylinders and connections (valves, fuse plugs, etc.) 
for those openings. Threads are required on openings.
    (1) Threads must be clean cut, even, without checks, and to gauge.
    (2) Taper threads, when used, must be of a length not less than as 
specified for American Standard taper pipe threads.
    (3) Straight threads having at least 6 engaged threads are 
authorized. Straight threads must have a tight fit and a calculated 
shear strength of at least 10 times the test pressure of the cylinder. 
Gaskets, adequate to prevent leakage, are required.
    (i) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Each cylinder must be tested to at least \5/3\ times the service 
pressure.
    (j) Flattening test. A flattening test must be performed on one 
cylinder taken at random out of each lot of 200 or less, by placing the 
cylinder between wedge shaped knife edges having a 60 deg. included 
angle, rounded to \1/2\-inch radius. The longitudinal axis of the 
cylinder must be at a 90-degree angle to knife edges during the test. 
For lots of 30 or less, flattening tests are authorized to be made on a 
ring at least 8 inches long cut from each cylinder and subjected to same 
heat treatment as the finished cylinder.
    (k) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material as follows:
    (1) The test is required on 2 specimens cut from 1 cylinder taken at 
random out of each lot of 200 or less. For lots of 30 or less, physical 
tests are authorized to be made on a ring at least 8 inches long cut 
from each cylinder and subjected to the same heat treatment as the 
finished cylinder.
    (2) Specimens must conform to the following:
    (i) Gauge length of 8 inches with a width of not over 1\1/2\ inches, 
a gauge length of 2 inches with a width of not over 1\1/2\ inches, or a 
gauge length of at least 24 times the thickness with width not over 6 
times thickness when the thickness of the cylinder wall is not over \3/
16\ inch.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within 1 inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:

[[Page 738]]

    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch, the strain indicator reading being set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (l) Acceptable results for physical and flattening tests. An 
acceptable result for physical and flattening tests is elongation at 
least 20 percent for 2 inches of gauge length or at least 10 percent in 
other cases. Flattening is required without cracking to 6 times the wall 
thickness of the cylinder.
    (m) Leakage test. All spun cylinders and plugged cylinders must be 
tested for leakage by gas or air pressure after the bottom has been 
cleaned and is free from all moisture. Pressure, approximately the same 
as but no less than the service pressure, must be applied to one side of 
the finished bottom over an area of at least \1/16\ of the total area of 
the bottom but not less than \3/4\ inch in diameter, including the 
closure, for at least one minute, during which time the other side of 
the bottom exposed to pressure must be covered with water and closely 
examined for indications of leakage. Except as provided in paragraph (n) 
of this section, a cylinder must be rejected if there is any leaking.
    (1) A spun cylinder is one in which an end closure in the finished 
cylinder has been welded by the spinning process.
    (2) A plugged cylinder is one in which a permanent closure in the 
bottom of a finished cylinder has been effected by a plug.
    (3) As a safety precaution, if the manufacturer elects to make this 
test before the hydrostatic test, the manufacturer should design the 
test apparatus so that the pressure is applied to the smallest area 
practicable, around the point of closure, and so as to use the smallest 
possible volume of air or gas.
    (n) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinders. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding or spinning is not authorized. Spun 
cylinders rejected under the provision of paragraph (m) of this section 
may be removed from the spun cylinder category by drilling to remove 
defective material, tapping and plugging.



Sec. 178.38  Specification 3B seamless steel cylinders.

    (a) Type, size, and service pressure. A DOT 3B cylinder is seamless 
steel cylinder with a water capacity (nominal) of not over 1,000 pounds 
and a service pressure of at least 150 to not over 500 pounds per square 
inch.
    (b) Steel. Open-hearth or electric steel of uniform quality must be 
used. Content percent may not exceed the following: carbon, 0.55; 
phosphorus, 0.045; sulphur, 0.050.
    (c) Identification of material. Material must be identified by any 
suitable method except that plates and billets for hot-drawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No fissure or other defect is permitted 
that is likely to weaken the finished cylinder appreciably. A reasonably 
smooth and uniform surface finish is required. If not originally free 
from such defects, the surface may be machined or otherwise treated to 
eliminate these defects.

[[Page 739]]

The thickness of the bottoms of cylinders welded or formed by spinning 
is, under no condition, to be less than two times the minimum wall 
thickness of the cylindrical shell; such bottom thicknesses to be 
measured within an area bounded by a line representing the points of 
contact between the cylinder and floor when the cylinder is in a 
vertical position.
    (e) Welding or brazing. Welding or brazing for any purpose 
whatsoever is prohibited except as follows:
    (1) Welding or brazing is authorized for the attachment of neckrings 
and footrings which are non-pressure parts, and only to the tops and 
bottoms of cylinders having a service pressure of 500 pounds per square 
inch or less. Cylinders, neckrings, and footrings must be made of 
weldable steel, carbon content of which may not exceed 0.25 percent 
except in the case of 4130X steel which may be used with proper welding 
procedure.
    (2) As permitted in paragraph (d) of this section.
    (f) Wall thickness. The wall stress may not exceed 24,000 pounds per 
square inch. The minimum wall thickness is 0.090 inch for any cylinder 
with an outside diameter of 6 inches. Calculation must be made by the 
following formula:

S=[P(1.3D\2\+0.4d\2\)]/(D\2\-d\2\)

Where:

S=wall stress in pounds per square inch;
P=at least two times service pressure or 450 pounds per square inch, 
whichever is the greater;
D=outside diameter in inches;
d=inside diameter in inches.

    (g) Heat treatment. The completed cylinders must be uniformly and 
properly heat-treated prior to tests.
    (h) Openings in cylinders and connections (valves, fuse plugs, etc.) 
for those openings. Threads, conforming to the following, are required 
on all openings:
    (1) Threads must be clean cut, even, without checks, and to gauge.
    (2) Taper threads when used, must be of a length not less than as 
specified for American Standard taper pipe threads.
    (3) Straight threads having at least 4 engaged threads are 
authorized. Straight threads must have a tight fit, and calculated shear 
strength at least 10 times the test pressure of the cylinder. Gaskets, 
adequate to prevent leakage, are required.
    (i) Hydrostatic test. Cylinders must successfully withstand a 
hydrostatic test, as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy either of 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to insure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Cylinders must be tested as follows:
    (i) Each cylinder; to at least 2 times service pressure; or
    (ii) 1 cylinder out of each lot of 200 or less; to at least 3 times 
service pressure. Others must be examined under pressure of 2 times 
service pressure and show no defect.
    (j) Flattening test. A flattening test must be performed on one 
cylinder taken at random out or each lot of 200 or less, by placing the 
cylinder between wedge shaped knife edges having a 60 deg. included 
angle, rounded to \1/2\-inch radius. The longitudinal axis of the 
cylinder must be at a 90-degree angle to knife edges during the test. 
For lots of 30 or less, flattening tests are authorized to be made on a 
ring at least 8 inches long cut from each cylinder and subjected to same 
heat treatment as the finished cylinder.
    (k) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material, as follows:

[[Page 740]]

    (1) The test is required on 2 specimens cut from 1 cylinder taken at 
random out of each lot of 200 or less. For lots of 30 or less, physical 
tests are authorized to be made on a ring at least 8 inches long cut 
from each cylinder and subjected to same heat treatment as the finished 
cylinder.
    (2) Specimens must conform to the following:
    (i) Gauge length of 8 inches with a width of not over 1\1/2\ inches; 
or a gauge length of 2 inches with a width of not over 1\1/2\ inches; or 
a gauge length at least 24 times the thickness with a width not over 6 
times thickness is authorized when a cylinder wall is not over \3/16\ 
inch thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within one inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch, and the strain indicator reading being set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (l) Acceptable results for physical and flattening tests. Either of 
the following is an acceptable result:
    (1) An elongation of at least 40 percent for a 2-inch gauge length 
or at least 20 percent in other cases and yield strength not over 73 
percent of tensile strength. In this instance, the flattening test is 
not required.
    (2) An elongation of at least 20 percent for a 2-inch gauge length 
or 10 percent in other cases and yield strength not over 73 percent of 
tensile strength. Flattening is required, without cracking, to 6 times 
the wall thickness.
    (m) Leakage test. All spun cylinders and plugged cylinders must be 
tested for leakage by gas or air pressure after the bottom has been 
cleaned and is free from all moisture, subject to the following 
conditions and limitations:
    (1) Pressure, approximately the same as but no less than service 
pressure, must be applied to one side of the finished bottom over an 
area of at least \1/16\ of the total area of the bottom but not less 
than \3/4\ inch in diameter, including the closure, for at least one 
minute, during which time the other side of the bottom exposed to 
pressure must be covered with water and closely examined for indications 
of leakage. Except as provided in paragraph (n) of this section, a 
cylinder must be rejected if there is any leaking.
    (2) A spun cylinder is one in which an end closure in the finished 
cylinder has been welded by the spinning process.
    (3) A plugged cylinder is one in which a permanent closure in the 
bottom of a finished cylinder has been effected by a plug.
    (4) As a safety precaution, if the manufacturer elects to make this 
test before the hydrostatic test, he should design his apparatus so that 
the pressure is applied to the smallest area

[[Page 741]]

practicable, around the point of closure, and so as to use the smallest 
possible volume of air or gas.
    (n) Rejected cylinders. Reheat treatment of rejected cylinders is 
authorized. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding or spinning is not authorized. Spun 
cylinders rejected under the provisions of paragraph (m) of this section 
may be removed from the spun cylinder category by drilling to remove 
defective material, tapping and plugging.
    (o) Marking. Markings may be stamped into the sidewalls of cylinders 
having a service pressure of 150 psi if all of the following conditions 
are met:
    (1) Wall stress at test pressure may not exceed 24,000 psi.
    (2) Minimum wall thickness must be not less than 0.090 inch.
    (3) Depth of stamping must be no greater than 15 percent of the 
minimum wall thickness, but may not exceed 0.015 inch.
    (4) Maximum outside diameter of cylinder may not exceed 5 inches.
    (5) Carbon content of cylinder may not exceed 0.25 percent. If the 
carbon content exceeds 0.25 percent, the complete cylinder must be 
normalized after stamping.
    (6) Stamping must be adjacent to the top head.



Sec. 178.39  Specification 3BN seamless nickel cylinders.

    (a) Type, size and service pressure. A DOT 3BN cylinder is a 
seamless nickel cylinder with a water capacity (nominal) not over 125 
pounds water capacity (nominal) and a service pressure at least 150 to 
not over 500 pounds per square inch.
    (b) Nickel. The percentage of nickel plus cobalt must be at least 
99.0 percent.
    (c) Identification of material. The material must be identified by 
any suitable method except that plates and billets for hot-drawn 
cylinders must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. Cylinders closed in by spinning 
process are not authorized.
    (e) Welding or brazing. Welding or brazing for any purpose 
whatsoever is prohibited except that welding is authorized for the 
attachment of neckrings and footrings which are nonpressure parts, and 
only to the tops and bottoms of cylinders. Neckrings and footrings must 
be of weldable material, the carbon content of which may not exceed 0.25 
percent. Nickel welding rod must be used.
    (f) Wall thickness. The wall stress may not exceed 15,000 pounds per 
square inch. A minimum wall thickness of 0.100 inch is required for any 
cylinder over 5 inches in outside diameter. Wall stress calculation must 
be made by using the following formula:

S=[P(1.3D\2\+0.4d\2\)]/(D\2\-d\2\)

Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test or 450 pounds 
per square inch whichever is the greater;
D=outside diameter in inches;
d=inside diameter in inches.

    (g) Heat treatment. The completed cylinders must be uniformly and 
properly heat-treated prior to tests.
    (h) Openings in cylinders and connections (valves, fuse plugs, etc.) 
for those openings. Threads conforming to the following are required on 
openings:
    (1) Threads must be clean cut, even, without checks, and to gauge.
    (2) Taper threads, when used, to be of length not less than as 
specified for American Standard taper pipe threads.
    (3) Straight threads having at least 6 engaged threads are 
authorized. Straight threads must have a tight fit and a calculated 
shear strength of at least 10 times the test pressure of the cylinder. 
Gaskets, adequate to prevent leakage, are required.
    (i) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test, as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an

[[Page 742]]

accuracy of 1 percent. The expansion gauge must permit reading of total 
expansion to an accuracy either of 1 percent or 0.1 cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Each cylinder must be tested to at least 2 times service 
pressure.
    (j) Flattening test. A flattening test must be performed on one 
cylinder taken at random out or each lot of 200 or less, by placing the 
cylinder between wedge shaped knife edges having a 60 deg. included 
angle, rounded to \1/2\-inch radius. The longitudinal axis of the 
cylinder must be at a 90-degree angle to knife edges during the test. 
For lots of 30 or less, flattening tests are authorized to be made on a 
ring at least 8 inches long cut from each cylinder and subjected to same 
heat treatment as the finished cylinder.
    (k) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material, as follows:
    (1) The test is required on 2 specimens cut from 1 cylinder taken at 
random out of each lot of 200 or less. For lots of 30 or less, physical 
tests are authorized to be made on a ring at least 8 inches long cut 
from each cylinder and subjected to same heat treatment as the finished 
cylinder.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width of not over 1\1/2\ 
inches, a gauge length of 2 inches with a width of not over 1\1/2\ 
inches, or a gauge length of at least 24 times the thickness with a 
width not over 6 times thickness is authorized when a cylinder wall is 
not over \3/16\ inch thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within one inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch, and the strain indicator reading must be set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (l) Acceptable results for physical and flattening tests. Either of 
the following is an acceptable result:
    (1) An elongation of at least 40 percent for a 2 inch gauge length 
or at least 20 percent in other cases and

[[Page 743]]

yield point not over 50 percent of tensile strength. In this instance, 
the flattening test is not required.
    (2) An elongation of at least 20 percent for a 2 inch gauge length 
or 10 percent in other cases and a yield point not over 50 percent of 
tensile strength. Flattening is required, without cracking, to 6 times 
the wall thickness.
    (m) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinders. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding is not authorized.



Sec. 178.42  Specification 3E seamless steel cylinders.

    (a) Type, size, and service pressure. A DOT 3E cylinder is a 
seamless steel cylinder with an outside diameter not greater than 2 
inches nominal, a length less than 2 feet and a service pressure of 
1,800 pounds per square inch.
    (b) Steel. Open-hearth or electric steel of uniform quality must be 
used. Content percent may not exceed the following: Carbon, 0.55; 
phosphorus, 0.045; sulphur, 0.050.
    (c) Identification of steel. Materials must be identified by any 
suitable method.
    (d) Manufacture. Cylinders must be manufactured by best appliances 
and methods. No defect is permitted that is likely to weaken the 
finished cylinder appreciably. A reasonably smooth and uniform surface 
finish is required. The thickness of the spun bottom is, under no 
condition, to be less than two times the minimum wall thickness of the 
cylindrical shell; such bottom thickness must be measured within an area 
bounded by a line representing the points of contact between the 
cylinder and floor when the cylinder is in a vertical position.
    (e) Openings in cylinders and connections (valves, fuse plugs, etc.) 
for those openings. Threads conforming to the following are required on 
openings.
    (1) Threads must be clean cut, even, without checks, and to gauge.
    (2) Taper threads, when used, must be of length not less than as 
specified for American Standard taper pipe threads.
    (3) Straight threads having at least 4 engaged threads are 
authorized. Straight threads must have a tight fit and a calculated 
shear strength of at least 10 times the test pressure of the cylinder. 
Gaskets, adequate to prevent leakage, are required.
    (f) Hydrostatic test. Cylinders must be tested as follows:
    (1) One cylinder out of each lot of 500 or less must be subjected to 
a hydrostatic pressure of 6,000 pounds per square inch or higher.
    (2) The cylinder referred to in paragraph (f)(1) of this section 
must burst at a pressure higher than 6,000 pounds per square inch 
without fragmenting or otherwise showing lack of ductility, or must hold 
a pressure of 12,000 pounds per square inch for 30 seconds without 
bursting. In which case, it must be subjected to a flattening test 
without cracking to six times wall thickness between knife edges, wedge 
shaped 60 degree angle, rounded out to a \1/2\ inch radius. The 
inspector's report must be suitably changed to show results of latter 
alternate and flattening test.
    (3) Other cylinders must be examined under pressure of at least 
3,000 pounds per square inch and not to exceed 4,500 pounds per square 
inch and show no defect. Cylinders tested at a pressure in excess of 
3,600 pounds per square inch must burst at a pressure higher than 7,500 
pounds per square inch when tested as specified in paragraph (f)(2) of 
this section. The pressure must be maintained for at least 30 seconds 
and sufficiently longer to ensure complete examination.
    (g) Leakage test. All spun cylinders and plugged cylinders must be 
tested for leakage by gas or air pressure after the bottom has been 
cleaned and is free from all moisture subject to the following 
conditions and limitations:
    (1) A pressure, approximately the same as but not less than the 
service pressure, must be applied to one side of the finished bottom 
over an area of at least \1/16\ of the total area of the bottom but not 
less than \3/4\ inch in diameter, including the closure, for at least 
one minute, during which time the other side of the bottom exposed to 
pressure must be covered with water and closely examined for indications 
of leakage. Accept as provided in paragraph (h) of this section, a 
cylinder must be rejected if there is any leakage.

[[Page 744]]

    (2) A spun cylinder is one in which an end closure in the finished 
cylinder has been welded by the spinning process.
    (3) A plugged cylinder is one in which a permanent closure in the 
bottom of a finished cylinder has been effected by a plug.
    (4) As a safety precaution, if the manufacturer elects to make this 
test before the hydrostatic test, the manufacturer shall design the test 
apparatus so that the pressure is applied to the smallest area 
practicable, around the point of closure, and so as to use the smallest 
possible volume of air or gas.
    (h) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinders. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding or spinning is not authorized. Spun 
cylinders rejected under the provisions of paragraph (g) of this section 
may be removed from the spun cylinder category by drilling to remove 
defective material, tapping and plugging.
    (i) Marking. Markings required by Sec. 178.35 must be stamped 
plainly and permanently on the shoulder, top head, neck or sidewall of 
each cylinder.



Sec. 178.44  Specification 3HT seamless steel cylinders for aircraft use.

    (a) Type, size and service pressure. A DOT 3HT cylinder is a 
seamless steel cylinder with a water capacity (nominal) of not over 150 
pounds and a service pressure of at least 900 pounds per square inch.
    (b) Authorized steel. Open hearth or electric furnace steel of 
uniform quality must be used. A heat of steel made under the 
specifications listed in Table 1 in this paragraph (b), check chemical 
analysis of which is slightly out of the specified range, is acceptable, 
if satisfactory in all other respects, provided the tolerances shown in 
Table 2 in this paragraph (b) are not exceeded. Grain size 6 or finer 
according to ASTM E 112. Steel of the following chemical analysis is 
authorized:

                     Table 1.--Authorized Materials                     
------------------------------------------------------------------------
                 Designation                      AISI 4130  (percent)  
------------------------------------------------------------------------
Carbon.......................................  0.28/0.33                
Manganese....................................  0.40/0.60                
Phosphorus...................................  0.040 maximum            
Sulfur.......................................  0.040 maximum            
Silicon......................................  0.15/0.35                
Chromium.....................................  0.80/1.10                
Molybdenum...................................  0.15/.025                
------------------------------------------------------------------------


                                       Table 2.--Check Analysis Tolerances                                      
----------------------------------------------------------------------------------------------------------------
                                                                                        Tolerance (percent) over
                                                                                          the maximum limit or  
                                                                                         under the minimum limit
            Element                       Limit or maximum specified (percent)         -------------------------
                                                                                           Under         Over   
                                                                                          minimum      maximum  
                                                                                           limit        limit   
----------------------------------------------------------------------------------------------------------------
Carbon.........................  Over 0.15 to 0.40 incl...............................          .03          .04
Manganese......................  To 0.60 incl.........................................          .03          .03
Phosphorus\1\..................  All ranges...........................................  ...........          .01
Sulphur........................  All ranges...........................................  ...........          .01
Silicon........................  To 0.30 incl.........................................          .02          .03
                                 Over 0.30 to 1.00 incl...............................          .05          .05
Chromium.......................  To 0.90 incl.........................................          .03          .03
                                 Over 0.90 to 2.10 incl...............................          .05          .05
Molybdenum.....................  To 0.20 incl.........................................          .01          .01
                                 Over 0.20 to 0.40 incl...............................          .02          .02
----------------------------------------------------------------------------------------------------------------
\1\ Rephosphorized steels not subject to check analysis for phosphorus.                                         

    (c) Identification of material. Material must be identified by any 
suitable method. Steel stamping of heat identifications may not be made 
in any area which will eventually become the side wall of the cylinder. 
Depth of stamping may not encroach upon the minimum

[[Page 745]]

prescribed wall thickness of the cylinder.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No fissure or other defect is permitted 
that is likely to weaken the finished container appreciably. The general 
surface finish may not exceed a roughness of 250 RMS. Individual 
irregularities such as draw marks, scratches, pits, etc., should be held 
to a minimum consistent with good high stress pressure vessel 
manufacturing practices. If the cylinder is not originally free of such 
defects or does not meet the finish requirements, the surface may be 
machined or otherwise treated to eliminate these defects. The point of 
closure of cylinders closed by spinning may not be less than two times 
the prescribed wall thickness of the cylindrical shell. The cylinder end 
contour must be hemispherical or ellipsoidal with a ratio of major-to-
minor axis not exceeding two to one and with the concave side to 
pressure.
    (e) Welding or brazing. Welding or brazing for any purpose 
whatsoever is prohibited, except that welding by spinning is permitted 
to close the bottom of spun cylinders. Machining or grinding to produce 
proper surface finish at point of closure is required.
    (f) Wall thickness. (1) Minimum wall thickness for any cylinder must 
be 0.050 inch. The minimum wall thickness must be such that the wall 
stress at the minimum specified test pressure may not exceed 75 percent 
of the minimum tensile strength of the steel as determined from the 
physical tests required in paragraph (m) of this section and may not be 
over 105,000 psi.
    (2) Calculations must be made by the formula:

S=[P(1.3D\2\+0.4d\2\)]/(D\2\-d\2\)

Where:

S=Wall stress in pounds per square inch;
P=Minimum test pressure prescribed for water jacket test;
D=Outside diameter in inches;
d=Inside diameter in inches.

    (3) Wall thickness of hemispherical bottoms only permitted to 90 
percent of minimum wall thickness of cylinder sidewall but may not be 
less than 0.050 inch. In all other cases, thickness to be no less than 
prescribed minimum wall.
    (g) Heat treatment. The completed cylinders must be uniformly and 
properly heated prior to tests. Heat treatment of the cylinders of the 
authorized analysis must be as follows:
    (1) All cylinders must be quenched by oil, or other suitable medium.
    (2) The steel temperature on quenching must be that recommended for 
the steel analysis, but may not exceed 1750  deg.F.
    (3) The steel must be tempered at a temperature most suitable for 
the particular steel analysis but not less than 850  deg.F.
    (4) All cylinders must be inspected by the magnetic particle or dye 
penetrant method to detect the presence of quenching cracks. Any 
cylinder found to have a quenching crack must be rejected and may not be 
requalified.
    (h) Openings in cylinders and connections (valves, fuse plugs, etc.) 
for those openings. Threads conforming to the following are required on 
openings:
    (1) Threads must be clean cut, even, without cracks, and to gauge.
    (2) Taper threads, when used, must be of length not less than as 
specified for National Gas Tapered Thread (NGT) as required by American 
Standard Compressed Gas Cylinder Valve Outlet and Inlet Connections.
    (3) Straight threads having at least 6 engaged threads are 
authorized. Straight threads must have a tight fit and a calculated 
shear stress of at least 10 times the test pressure of the cylinder. 
Gaskets, adequate to prevent leakage, are required.
    (i) Hydrostatic test. Each cylinder must withstand a hydrostatic 
test, as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. Pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy either of 1 percent of 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after

[[Page 746]]

heat treatment and previous to the official test may not exceed 90 
percent of the test pressure. If, due to failure of the test apparatus, 
the test pressure cannot be maintained, the test may be repeated at a 
pressure increased by 10 percent or 100 pounds per square inch, which 
ever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Each cylinder must be tested to at least \5/3\ times service 
pressure.
    (j) Cycling tests. Prior to the initial shipment of any specific 
cylinder design, cyclic pressurization tests must have been performed on 
at least three representative samples without failure as follows:
    (1) Pressurization must be performed hydrostatically between 
approximately zero psig and the service pressure at a rate not in excess 
of 10 cycles per minute. Adequate recording instrumentation must be 
provided if equipment is to be left unattended for periods of time.
    (2) Tests prescribed in paragraph (j)(1) of this section must be 
repeated on one random sample out of each lot of cylinders. The cylinder 
may then be subjected to a burst test.
    (3) A lot is defined as a group of cylinders fabricated from the 
same heat of steel, manufactured by the same process and heat treated in 
the same equipment under the same conditions of time, temperature, and 
atmosphere, and may not exceed a quantity of 200 cylinders.
    (4) All cylinders used in cycling tests must be destroyed.
    (k) Burst test. One cylinder taken at random out of each lot of 
cylinders must be hydrostatically tested to destruction.
    (l) Flattening test. A flattening test must be performed on one 
cylinder taken at random out or each lot of 200 or less, by placing the 
cylinder between wedge shaped knife edges having a 60 deg. included 
angle, rounded to \1/2\-inch radius. The longitudinal axis of the 
cylinder must be at a 90-degree angle to knife edges during the test. 
For lots of 30 or less, flattening tests are authorized to be made on a 
ring at least 8 inches long cut from each cylinder and subjected to same 
heat treatment as the finished cylinder.
    (m) Physical tests. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material, as follows:
    (1) Test is required on 2 specimens cut from 1 cylinder taken at 
random out of each lot of cylinders.
    (2) Specimens must conform to the following:
    (i) A gauge length of at least 24 times the thickness with a width 
not over six times the thickness. The specimen, exclusive of grip ends, 
may not be flattened. Grip ends may be flattened to within one inch of 
each end of the reduced section. When size of cylinder does not permit 
securing straight specimens, the specimens may be taken in any location 
or direction and may be straightened or flattened cold by pressure only, 
not by blows. When specimens are so taken and prepared, the inspector's 
report must show in connection with the record of physical tests 
detailed information in regard to such specimens.
    (ii) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length.
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch, the

[[Page 747]]

strain indicator reading being set at the calculated corresponding 
strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (n) Magnetic particle inspection. Inspection must be performed on 
the inside of each container before closing and externally on each 
finished container after heat treatment. Evidence of discontinuities, 
which in the opinion of a qualified inspector may appreciably weaken or 
decrease the durability of the cylinder, must be cause for rejection.
    (o) Leakage test. All spun cylinders and plugged cylinders must be 
tested for leakage by dry gas or dry air pressure after the bottom has 
been cleaned and is free from all moisture, subject to the following 
conditions and limitations:
    (1) Pressure, approximately the same as but not less than service 
pressure, must be applied to one side of the finished bottom over an 
area of at least \1/16\ of the total area of the bottom but not less 
than \3/4\ inch in diameter, including the closure, for at least one 
minute, during which time the other side of the bottom exposed to 
pressure must be covered with water and closely examined for indications 
of leakage. Except as provided in paragraph (q) of this section, a 
cylinder must be rejected if there is leakage.
    (2) A spun cylinder is one in which an end closure in the finished 
cylinder has been welded by the spinning process.
    (3) A plugged cylinder is one in which a permanent closure in the 
bottom of a finished cylinder has been effected by a plug.
    (4) As a safety precaution, if the manufacturer elects to make this 
test before the hydrostatic test, the manufacturer should design the 
test apparatus so that the pressure is applied to the smallest area 
practicable, around the point of closure, and so as to use the smallest 
possible volume of air or gas.
    (p) Acceptable results of tests. Results of the flattening test, 
physical tests, burst test, and cycling test must conform to the 
following:
    (1) Flattening required without cracking to ten times the wall 
thickness of the cylinder.
    (2) Physical tests:
    (i) An elongation of at least 6 percent for a gauge length of 24 
times the wall thickness.
    (ii) The tensile strength may not exceed 165,000 p.s.i.
    (3) The burst pressure must be at least \4/3\ times the test 
pressure.
    (4) Cycling-at least 10,000 pressurizations.
    (q) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinders. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding or spinning is not authorized. For 
each cylinder subjected to reheat treatment during original manufacture, 
sidewall measurements must be made to verify that the minimum sidewall 
thickness meets specification requirements after the final heat 
treatment.
    (r) Marking. (1) Cylinders must be marked by low stress type steel 
stamping in an area and to a depth which will insure that the wall 
thickness measured from the root of the stamping to the interior surface 
is equal to or greater than the minimum prescribed wall thickness. 
Stamping must be permanent and legible. Stamping on side wall not 
authorized.
    (2) The rejection elastic expansion (REE), in cubic centimeters 
(cc), must be marked on the cylinder near the date of test. The REE for 
a cylinder is 1.05 times its original elastic expansion.
    (3) Name plates are authorized, provided that they can be 
permanently and securely attached to the cylinder. Attachment by either 
brazing or welding is not permitted. Attachment by soldering is 
permitted provided steel temperature does not exceed 500  deg.F.
    (s) Inspector's report. In addition to the requirements of 
Sec. 178.35, the inspector's report must indicate the rejection elastic 
expansion (REE), in cubic centimeters (cc).
[Amdt. 178-114, 61 FR 25942, May 23, 1996, as amended at 62 FR 51561, 
Oct. 1, 1997]

[[Page 748]]



Sec. 178.45  Specification 3T seamless steel cylinder.

    (a) Type, size, and service pressure. A DOT 3T cylinder is a 
seamless steel cylinder with a minimum water capacity of 1,000 pounds 
and a minimum service pressure of 1,800 p.s.i. Each cylinder must have 
integrally formed heads concave to pressure at both ends. The inside 
head shape must be hemispherical, ellipsoidal in which the major axis is 
two times the minor axis, or a dished shape falling within these two 
limits. Permanent closures formed by spinning are prohibited.
    (b) Material, steel. Only open hearth, basic oxygen, or electric 
furnace process steel of uniform quality is authorized. The steel 
analysis must conform to the following:

                           Analysis Tolerances                          
------------------------------------------------------------------------
                                                       Check Analysis   
           Element               Ladle analysis    ---------------------
                                                      Under       Over  
------------------------------------------------------------------------
Carbon......................  0.35 to 0.50........       0.03       0.04
Manganese...................  0.75 to 1.05........       0.04       0.04
Phosphorus (max)............  0.035...............  .........       0.01
Sulphur (max)...............  0.04................  .........       0.01
Silicon.....................  0.15 to 0.35........       0.02       0.03
Chromium....................  0.80 to 1.15........       0.05       0.05
Molybdenum..................  0.15 to 0.25........       0.02       0.02
------------------------------------------------------------------------

    (1) A heat of steel made under the specifications in the table in 
this paragraph (b), the ladle analysis of which is slightly out of the 
specified range, is acceptable if satisfactory in all other aspects. 
However, the check analysis tolerances shown in the table in this 
paragraph (b) may not be exceeded except as approved by the Department.
    (2) Material with seams, cracks, laminations, or other injurious 
defects is not permitted.
    (3) Material used must be identified by any suitable method.
    (c) Manufacture. General manufacturing requirements are as follows:
    (1) Surface finish must be uniform and reasonably smooth.
    (2) Inside surfaces must be clean, dry, and free of loose particles.
    (3) No defect of any kind is permitted if it is likely to weaken a 
finished cylinder.
    (4) If the cylinder surface is not originally free from the defects, 
the surface may be machined or otherwise treated to eliminate these 
defects provided the minimum wall thickness is maintained.
    (5) Welding or brazing on a cylinder is not permitted.
    (d) Wall thickness. The minimum wall thickness must be such that the 
wall stress at the minimum specified test pressure does not exceed 67 
percent of the minimum tensile strength of the steel as determined by 
the physical tests required in paragraphs (j) and (k) of this section. A 
wall stress of more than 90,500 p.s.i. is not permitted. The minimum 
wall thickness for any cylinder may not be less than 0.225 inch.
    (1) Calculation of the stress for cylinders must be made by the 
following formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

Where:

S=Wall stress in pounds per square inch;
P=Minimum test pressure, at least \5/3\ service pressure;
D=Outside diameter in inches;
d=Inside diameter in inches.

    (2) Each cylinder must meet the following additional requirement 
which assumes a cylinder horizontally supported at its two ends and 
uniformly loaded over its entire length. This load consists of the 
weight per inch of length of the straight cylindrical portion filled 
with water compressed to the specified test pressure. The wall thickness 
must be increased when necessary to meet this additional requirement:
    (i) The sum of two times the maximum tensile stress in the bottom 
fibers due to bending (see paragraph (d)(2)(ii) of this section), plus 
the maximum tensile stress in the same fibers due to hydrostatic testing 
(see paragraph

[[Page 749]]

(d)(2)(iii) of this section) may not exceed 80 percent of the minimum 
yield strength of the steel at this maximum stress.
    (ii) The following formula must be used to calculate the maximum 
tensile stress due to bending:

S=Mc/I

Where:

S=Tensile stress in pounds per square inch;
M=Bending moment in inch-pounds (wl2/8);
I=Moment of inertia--0.04909 (D4-d4) in inches 
fourth;
c=Radius (D/2) of cylinder in inches;
w=Weight per inch of cylinder filled with water;
l=Length of cylinder in inches;
D=Outside diameter in inches;
d=Inside diameter in inches.

    (iii) The following formula must be used to calculate the maximum 
longitudinal tensile stress due to hydrostatic test pressure:

S=A1 P/A2

Where:

S=Tensile stress in pounds per square inch;
A1=Internal area in cross section of cylinder in square 
inches;
P=Hydrostatic test pressure in pounds per square, inch;
A2=Area of metal in cross section of cylinder in square 
inches.

    (e) Heat treatment. Each completed cylinder must be uniformly and 
properly heat treated prior to testing, as follows:
    (1) Each cylinder must be heated and held at the proper temperature 
for at least one hour per inch of thickness based on the maximum 
thickness of the cylinder and then quenched in a suitable liquid medium 
having a cooling rate not in excess of 80 percent of water. The steel 
temperature on quenching must be that recommended for the steel 
analysis, but it must never exceed 1750  deg.F.
    (2) After quenching, each cylinder must be reheated to a temperature 
below the transformation range but not less than 1050  deg.F., and must 
be held at this temperature for at least one hour per inch of thickness 
based on the maximum thickness of the cylinder. Each cylinder must then 
be cooled under conditions recommended for the steel.
    (f) Openings. Openings in cylinders must comply with the following:
    (1) Openings are permitted on heads only.
    (2) The size of any centered opening in a head may not exceed one 
half the outside diameter of the cylinder.
    (3) Openings in a head must have ligaments between openings of at 
least three times the average of their hole diameter. No off-center 
opening may exceed 2.625 inches in diameter.
    (4) All openings must be circular.
    (5) All openings must be threaded. Threads must be in compliance 
with the following:
    (i) Each thread must be clean cut, even, without any checks, and to 
gauge.
    (ii) Taper threads, when used, must be the American Standard Pipe 
thread (NPT) type and must be in compliance with the requirements of NBS 
Handbook H-28, Part II, Section VII.
    (iii) Taper threads conforming to National Gas Taper thread (NGT) 
standards must be in compliance with the requirements of NBS Handbook H-
28, Part II, Sections VII and IX.
    (iv) Straight threads conforming with National Gas Straight thread 
(NGS) standards are authorized. These threads must be in compliance with 
the requirements of NBS Handbook H-28, Part II, Sections VII and IX.
    (g) Hydrostatic test. Each cylinder must be tested at an internal 
pressure by the water jacket method or other suitable method, conforming 
to the following requirements:
    (1) The testing apparatus must be operated in a manner that will 
obtain accurate data. Any pressure gauge used must permit reading to an 
accuracy of one percent. Any expansion gauge used must permit reading of 
the total expansion to an accuracy of one percent.
    (2) Any internal pressure applied to the cylinder after heat 
treatment and before the official test may not exceed 90 percent of the 
test pressure.
    (3) The pressure must be maintained sufficiently long to assure 
complete expansion of the cylinder. In no case may the pressure be held 
less than 30 seconds.

[[Page 750]]

    (4) If, due to failure of the test apparatus, the required test 
pressure cannot be maintained, the test must be repeated at a pressure 
increased by 10 percent or 100 p.s.i., whichever is lower or, the 
cylinder must be reheat treated.
    (5) Permanent volumetric expansion of the cylinder may not exceed 10 
percent of its total volumetric expansion at the required test pressure.
    (6) Each cylinder must be tested to at least \5/3\ times its service 
pressure.
    (h) Ultrasonic examination. After the hydrostatic test, the 
cylindrical section of each vessel must be examined in accordance with 
ASTM Standard A-388-67 using the angle beam technique. The equipment 
used must be calibrated to detect a notch equal to five percent of the 
design minimum wall thickness. Any discontinuity indication greater than 
that produced by the five percent notch must be cause for rejection of 
the cylinder unless the discontinuity is repaired within the 
requirements of this specification.
    (i) Basic requirements for tension and Charpy impact tests. 
Cylinders must be subjected to a tension and Charpy impact as follows:
    (1) When the cylinders are heat treated in a batch furnace, two 
tension specimens and three Charpy impact specimens must be tested from 
one of the cylinders or a test ring from each batch. The lot size 
represented by these tests may not exceed 200 cylinders.
    (2) When the cylinders are heat treated in a continuous furnace, two 
tension specimens and three Charpy impact specimens must be tested from 
one of the cylinders or a test ring from each four hours or less of 
production. However, in no case may a test lot based on this production 
period exceed 200 cylinders.
    (3) Each specimen for the tension and Charpy impact tests must be 
taken from the side wall of a cylinder or from a ring which has been 
heat treated with the finished cylinders of which the specimens must be 
representative. The axis of the specimens must be parallel to the axis 
of the cylinder. Each cylinder or ring specimen for test must be of the 
same diameter, thickness, and metal as the finished cylinders they 
represent. A test ring must be at least 24 inches long with ends covered 
during the heat treatment process so as to simulate the heat treatment 
process of the finished cylinders it represents.
    (4) A test cylinder or test ring need represent only one of the 
heats in a furnace batch provided the other heats in the batch have 
previously been tested and have passed the tests and that such tests do 
not represent more than 200 cylinders from any one heat.
    (5) The test results must conform to the requirements specified in 
paragraphs (j) and (k) of this section.
    (6) When the test results do not conform to the requirements 
specified, the cylinders represented by the tests may be reheat treated 
and the tests repeated. Paragraph (i)(5) of this section applies to any 
retesting.
    (j) Basic conditions for acceptable physical testing. The following 
criteria must be followed to obtain acceptable physical test results:
    (1) Each tension specimen must have a gauge length of two inches 
with a width not exceeding one and one-half inches. Except for the grip 
ends, the specimen may not be flattened. The grip ends may be flattened 
to within one inch of each end of the reduced section.
    (2) A specimen may not be heated after heat treatment specified in 
paragraph (d) of this section.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gage length.
    (i) This yield strength must be determined by the ``offset'' method 
or the ``extension under load'' method described in ASTM Standard E8.
    (ii) For the ``extension under load'' method, the total strain (or 
extension under load) corresponding to the stress at which the 0.2 
percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gage length under 
appropriate load and adding thereto 0.2 percent of the gage length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. However, when the degree of accuracy of this method is 
questionable the entire stress-strain diagram must be plotted and the 
yield strength determined from the 0.2 percent offset.

[[Page 751]]

    (iii) For the purpose of strain measurement, the initial strain must 
be set with the specimen under a stress of 12,000 p.s.i. and the strain 
indicator reading set at the calculated corresponding strain.
    (iv) The cross-head speed of the testing machine may not exceed \1/
8\ inch per minute during the determination of yield strength.
    (4) Each impact specimen must be Charpy V-notch type size 10 mm x 10 
mm taken in accordance with paragraph 11 of ASTM Standard A-333-67. When 
a reduced size specimen is used, it must be the largest size obtainable.
    (k) Acceptable physical test results. Results of physical tests must 
conform to the following:
    (1) The tensile strength may not exceed 155,000 p.s.i.
    (2) The elongation must be at least 16 percent for a two-inch gage 
length.
    (3) The Charpy V-notch impact properties for the three impact 
specimens which must be tested at 0  deg.F may not be less than the 
values shown as follows:

                                                                        
------------------------------------------------------------------------
                                Average value for     Minimum value (1  
    Size of specimen (mm)         acceptance (3     specimen only of the
                                   specimens)                3)         
------------------------------------------------------------------------
10.0x10.0...................  25.0 ft. lbs........  20.0 ft. lbs.       
10.0x7.5....................  21.0 ft. lbs........  17.0 ft. lbs.       
10.0x5.0....................  17.0 ft. lbs........  14.0 ft. lbs.       
------------------------------------------------------------------------

    (4) After the final heat treatment, each vessel must be hardness 
tested on the cylindrical section. The tensile strength equivalent of 
the hardness number obtained may not be more than 165,000 p.s.i. (Rc 
36). When the result of a hardness test exceeds the maximum permitted, 
two or more retests may be made; however, the hardness number obtained 
in each retest may not exceed the maximum permitted.
    (l) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinders. However, each reheat treated cylinder must subsequently pass 
all the prescribed tests. Repair by welding is not authorized.
    (m) Markings. Marking must be done by stamping into the metal of the 
cylinder. All markings must be legible and located on a shoulder.
    (n) Inspector's report. In addition to the requirements of 
Sec. 178.35, the inspector's report for the physical test report, must 
indicate the average value for three specimens and the minimum value for 
one specimen for each lot number.



Sec. 178.46  Specification 3AL seamless aluminum cylinders.

    (a) Size and service pressure. A DOT 3AL cylinder is a seamless 
aluminum cylinder with a maximum water capacity of 1000 pounds and 
minimum service pressure of 150 psig.
    (b) Authorized material and identification of material. The material 
of construction must meet the following conditions:
    (1) Starting stock must be cast stock or traceable to cast stock.
    (2) Material with seams, cracks, laminations, or other defects 
likely to weaken the finished cylinder may not be used.
    (3) Material must be identified by a suitable method that will 
identify the alloy, the aluminum producer's cast number, the solution 
heat treat batch number and the lot number.
    (4) The material must be of uniform quality. Only the following heat 
treatable aluminum alloys in Table 1 and 2 are permitted as follows:

[[Page 752]]



                                                          Table 1.--Chemical Composition Limits                                                         
                                                       [Chemical composition (in weight percent)]                                                       
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                             Other \1\                  
     Aluminum Assoc. alloy           Si       Fe       Cu         Mn         Mg         Cr       Zn     Ti     Pb     Bi  --------------        A1      
        designation No.                                                                                                     Each  Total                 
--------------------------------------------------------------------------------------------------------------------------------------------------------
6351...........................    0.7-1.3   0.50       0.10  0.40-0.80  0.40-0.80  .........   0.20   0.20   0.01   0.01   0.05   0.15  Remainder.     
6061...........................  0.40-0.80   0.70  0.15-0.40       0.15  0.80-1.20  0.04-0.35   0.25   0.15   0.01   0.01   0.05   0.15  Remainder.     
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Analysis is regularly made only for the elements for which specific limits are shown, except for unalloyed aluminum. If, however, the presence of   
  other elements is suspected to be, or in the course of routine analysis is indicated to be in excess of specified limits, further analysis is made to 
  determine that these other elements are not in excess of the amounts specified. (Aluminum Association Standards and Data.)                            

[[Page 753]]

                                                                                                                                                        


                                      Table 2.--Mechanical Property Limits                                      
----------------------------------------------------------------------------------------------------------------
                                                                 Tensile strength--PSI       Elongation--percent
                                                           ---------------------------------  minimum for 2' or 
                     Alloy and temper                                             Yield--        4D \1\ size    
                                                            Ultimate--minimum     minimum          specimen     
----------------------------------------------------------------------------------------------------------------
6351-T6...................................................           42,000          37,000             \2\14   
6061-T6...................................................           38,000          35,000             \2\14   
----------------------------------------------------------------------------------------------------------------
\1\ ``D'' represents specimen diameters. When the cylinder wall is greater than \3/16\ inch thick, a retest     
  without reheat treatment using the 4D size specimen is authorized if the test using the 2 inch size specimen  
  fails to meet elongation requirements.                                                                        
\2\ When cylinder wall is not over \3/16\-inch thick, 10 percent elongation is authorized when using a 24t x 6t 
  size test specimen.                                                                                           

    (5) All starting stock must be 100 percent ultrasonically inspected, 
along the length at right angles to the central axis from two positions 
at 90 deg. to one another. The equipment and continuous scanning 
procedure must be capable of detecting and rejecting internal defects 
such as cracks which have an ultrasonic response greater than that of a 
calibration block with a \5/64\-inch diameter flat bottomed hole.
    (6) Cast stock must have uniform equiaxed grain structure not to 
exceed 500 microns maximum.
    (7) Any starting stock not complying with the provisions of 
paragraphs (b)(1) through (b)(6) of this section must be rejected.
    (c) Manufacture. Cylinders must be manufactured in accordance with 
the following requirements:
    (1) Cylinder shells must be manufactured by the backward extrusion 
method and have a cleanliness level adequate to ensure proper 
inspection. No fissure or other defect is acceptable that is likely to 
weaken the finished cylinder below the design strength requirements. A 
reasonably smooth and uniform surface finish is required. If not 
originally free from such defects, the surface may be machined or 
otherwise conditioned to eliminate these defects.
    (2) Thickness of the cylinder base may not be less than the 
prescribed minimum wall thickness of the cylindrical shell. The cylinder 
base must have a basic torispherical, hemispherical, or ellipsoidal 
interior base configuration where the dish radius is no greater than 1.2 
times the inside diameter of the shell. The knuckle radius may not be 
less than 12 percent of the inside diameter of the shell. The interior 
base contour may deviate from the true torispherical, hemispherical or 
ellipsoidal configuration provided that--
    (i) Any areas of deviation are accompanied by an increase in base 
thickness;
    (ii) All radii of merging surfaces are equal to or greater than the 
knuckle radius;
    (iii) Each design has been qualified by successfully passing the 
cycling tests in this paragraph (c); and
    (iv) Detailed specifications of the base design are available to the 
inspector.
    (3) For free standing cylinders, the base thickness must be at least 
two times the minimum wall thickness along the line of contact between 
the cylinder base and the floor when the cylinders are in the vertical 
position.
    (4) Welding or brazing is prohibited.
    (5) Each new design and any significant change to any acceptable 
design must be qualified for production by testing prototype samples as 
follows:
    (i) Three samples must be subjected to 100,000 pressure reversal 
cycles between zero and service pressure or 10,000 pressure reversal 
cycles between zero and test pressure, at a rate not in excess of 10 
cycles per minute without failure.
    (ii) Three samples must be pressurized to destruction and failure 
may not occur at less than 2.5 times the marked cylinder service 
pressure. Each cylinder must remain in one piece. Failure must initiate 
in the cylinder sidewall in a longitudinal direction. Rate of 
pressurization may not exceed 200 psi per second.
    (6) In this specification ``significant change'' means a 10 percent 
or greater change in cylinder wall thickness, service pressure, or 
diameter; a 30 percent or greater change in water capacity or base 
thickness; any change in material;

[[Page 754]]

over 100 percent increase in size of openings; or any change in the 
number of openings.
    (d) Wall thickness. The minimum wall thickness must be such that the 
wall stress at the minimum specified test pressure will not exceed 80 
percent of the minimum yield strength nor exceed 67 percent of the 
minimum ultimate tensile strength as verified by physical tests in 
paragraph (i) of this section. The minimum wall thickness for any 
cylinder with an outside diameter greater than 5 inches must be 0.125 
inch. Calculations must be made by the following formula:

S=[P(1.3D\2\+0.4d\2\)]/(D\2\-d\2\)
Where:

S=Wall stress in pounds per square inch;
P=Prescribed minimum test pressure in pounds per square inch (see 
paragraph (g) of this section);
D=Outside diameter in inches; and
d=Inside diameter in inches.

    (e) Openings. Openings must comply with the following requirements:
    (1) Openings are permitted in heads only.
    (2) The size of any centered opening in a head may not exceed one-
half the outside diameter of the cylinder.
    (3) Other openings are permitted in the head of a cylinder if:
    (i) Each opening does not exceed 2.625 inches in diameter, or one-
half the outside diameter of the cylinder; whichever is less;
    (ii) Each opening is separated from each other by a ligament; and
    (iii) Each ligament which separates two openings must be at least 
three times the average of the diameters of the two openings.
    (4) All openings must be circular.
    (5) All openings must be threaded. Threads must comply with the 
following:
    (i) Each thread must be clean cut, even, without checks, and to 
gauge.
    (ii) Taper threads, when used, must conform to one of the following:
    (A) American Standard Pipe Thread (NPT) type, conforming to the 
requirements of Federal Standard H-28, Section 7;
    (B) National Gas Taper Thread (NGT) type, conforming to the 
requirements of Federal Standard H-28, Sections 7 and 9; or
    (C) Other taper threads conforming to other standards may be used 
provided the length is not less than that specified for NPT threads.
    (iii) Straight threads, when used, must conform to one of the 
following:
    (A) National Gas Straight Thread (NGS) type, conforming to the 
requirements of Federal Standard H-28, Sections 7 and 9;
    (B) Unified Thread (UN) type, conforming to the requirements of 
Federal Standard H-28, Section 2;
    (C) Controlled Radius Root Thread (UN) type, conforming to the 
requirements of Federal Standard H-28, Section 4; or
    (D) Other straight threads conforming to other recognized standards 
may be used provided that the requirements in paragraph (e)(5)(iv) of 
this section are met.
    (iv) All straight threads must have at least 6 engaged threads, a 
tight fit, and a factor of safety in shear of at least 10 at the test 
pressure of the cylinder. Shear stress must be calculated by using the 
appropriate thread shear area in accordance with Federal Standard H-28, 
Appendix A5, Section 3.
    (f) Heat treatment. Prior to any test, all cylinders must be 
subjected to a solution heat treatment and aging treatment appropriate 
for the aluminum alloy used.
    (g) Hydrostatic test. Each cylinder must be subjected to an internal 
test pressure using the water jacket equipment and method or other 
suitable equipment and method and comply with the following 
requirements:
    (1) The testing apparatus must be operated in a manner so as to 
obtain accurate data. The pressure gauge used must permit reading to an 
accuracy of one percent. The expansion gauge must permit reading the 
total expansion to an accuracy of either one percent or 0.1 cubic 
centimeter.
    (2) The test pressure must be maintained for a sufficient period of 
time to assure complete expansion of the cylinder. In no case may the 
pressure be held less than 30 seconds. If, due to failure of the test 
apparatus, the required test pressure cannot be maintained, the test may 
be repeated at a pressure

[[Page 755]]

increased by 10 percent or 100 psi, whichever is lower. If the test 
apparatus again fails to maintain the test pressure, the cylinder being 
tested must be rejected. Any internal pressure applied to the cylinder 
before any official test may not exceed 90 percent of the test pressure.
    (3) The minimum test pressure is the greatest of the following:
    (i) 450 psi regardless of service pressure;
    (ii) Two times the service pressure for cylinders having service 
pressure less than 500 psi; or
    (iii) Five-thirds times the service pressure for cylinders having a 
service pressure of at least 500 psi.
    (4) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (h) Flattening test. One cylinder taken at random out of each lot 
must be subjected to a flattening test as follows:
    (1) The test must be between knife edges, wedge shaped, having a 
60 deg. included angle, and rounded in accordance with the following 
table. The longitudinal axis of the cylinder must be at an angle 90 deg. 
to the knife edges during the test. The flattening test table is as 
follows:

                     Table 3.--Flattening Test Table                    
------------------------------------------------------------------------
                                                                 Radius 
               Cylinder wall thickness in inches                   in   
                                                                 inches 
------------------------------------------------------------------------
Under .150....................................................      .500
.150 to .249..................................................      .875
.250 to .349..................................................     1.500
.350 to .449..................................................     2.125
.450 to .549..................................................     2.750
.550 to .649..................................................     3.500
.650 to .749..................................................     4.125
------------------------------------------------------------------------

    (2) An alternate bend test in accordance with ASTM E 290 using a 
mandrel diameter not more than 6 times the wall thickness is authorized 
to qualify lots that fail the flattening test of this section without 
reheat treatment. If used, this test must be performed on two samples 
from one cylinder taken at random out of each lot of 200 cylinders or 
less.
    (3) Each test cylinder must withstand flattening to nine times the 
wall thickness without cracking. When the alternate bend test is used, 
the test specimens must remain uncracked when bent inward around a 
mandrel in the direction of curvature of the cylinder wall until the 
interior edges are at a distance apart not greater than the diameter of 
the mandrel.
    (i) Mechanical properties test. Two test specimens cut from one 
cylinder representing each lot of 200 cylinders or less must be 
subjected to the mechanical properties test, as follows:
    (1) The results of the test must conform to at least the minimum 
acceptable mechanical property limits for aluminum alloys as specified 
in paragraph (b) of this section.
    (2) Specimens must be 4D bar or gauge length 2 inches with width not 
over 1\1/2\ inch taken in the direction of extrusion approximately 
180 deg. from each other; provided that gauge length at least 24 times 
thickness with width not over 6 times thickness is authorized, when 
cylinder wall is not over \3/16\ inch thick. The specimen, exclusive of 
grip ends, may not be flattened. Grip ends may be flattened to within 
one inch of each end of the reduced section. When the size of the 
cylinder does not permit securing straight specimens, the specimens may 
be taken in any location or direction and may be straightened or 
flattened cold by pressure only, not by blows. When such specimens are 
used, the inspector's report must show that the specimens were so taken 
and prepared. Heating of specimens for any purpose is forbidden.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length.
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard B-557.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
10,000,000 psi. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield

[[Page 756]]

strength determined from the 0.2 percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 6,000 psi, the strain 
indicator reading being set at the calculated corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (j) Rejected cylinder. Reheat treatment of rejected cylinders is 
authorized one time. Subsequent thereto, cylinders must pass all 
prescribed tests to be acceptable.
    (k) Duties of inspector. In addition to the requirements of 
Sec. 178.35, the inspector shall:
    (1) Verify compliance with the provisions of paragraph (b) of this 
section by:
    (i) Performing or witnessing the performance of the chemical 
analyses on each melt or cast lot or other unit of starting material; or
    (ii) Obtaining a certified chemical analysis from the material or 
cylinder manufacturer for each melt, or cast of material; or
    (iii) Obtaining a certified check analysis on one cylinder out of 
each lot of 200 cylinders or less, if a certificate containing data to 
indicate compliance with the material specification is obtained.
    (2) The inspector shall verify ultrasonic inspection of all material 
by inspection or by obtaining the material producer's certificate of 
ultrasonic inspection. Ultrasonic inspection must be performed or 
verified as having been performed in accordance with paragraph (c) of 
this section.
    (3) The inspector must also determine that each cylinder complies 
with this specification by:
    (i) Selecting the samples for check analyses performed by other than 
the material producer;
    (ii) Verifying that the prescribed minimum thickness was met by 
measuring or witnessing the measurement of the wall thickness; and
    (iii) Verifying that the identification of material is proper.
    (4) Prior to initial production of any design or design change, 
verify that the design qualification tests prescribed in paragraph 
(c)(6) of this section have been performed with acceptable results.
    (l) Definitions. (1) In this specification, a ``lot'' means a group 
of cylinders successively produced having the same:
    (i) Size and configuration;
    (ii) Specified material of construction;
    (iii) Process of manufacture and heat treatment;
    (iv) Equipment of manufacture and heat treatment; and
    (v) Conditions of time, temperature and atmosphere during heat 
treatment.
    (2) In no case may the lot size exceed 200 cylinders, but any 
cylinder processed for use in the required destructive physical testing 
need not be counted as being one of the 200.
    (m) Inspector's report. In addition to the information required by 
Sec. 178.35, the record of chemical analyses must also include the alloy 
designation, and applicable information on iron, titanium, zinc, 
magnesium and any other applicable element used in the construction of 
the cylinder.



Sec. 178.47  Specification 4DS welded stainless steel cylinders for aircraft use.

    (a) Type, size, and service pressure. A DOT 4DS cylinder is either a 
welded stainless steel sphere (two seamless hemispheres) or 
circumferreentially welded cylinder both with a water capacity of not 
over 100 pounds and a service pressure of at least 500 but not over 900 
pounds per square inch.
    (b) Steel. Types 304, 321 and 347 stainless steel are authorized 
with proper welding procedure. A heat of steel made under the 
specifications in Table 1 in this paragraph (b), check chemical analysis 
of which is slightly out of the specified range, is acceptable, if 
satisfactory in all other respects, provided the tolerances shown in 
Table 2 in this paragraph (b) are not exceeded, except as approved by 
Associate Administrator. The following chemical analyses are authorized:

[[Page 757]]



                                         Table 1.--Authorized Materials                                         
----------------------------------------------------------------------------------------------------------------
                                                                   Stainless steels                             
                                    ----------------------------------------------------------------------------
                                            304 (percent)               321 (percent)           347 (percent)   
----------------------------------------------------------------------------------------------------------------
Carbon (max).......................  0.08                        0.08                        0.08               
Manganese (max)....................  2.00                        2.00                        2.00               
Phosphorus (max)...................  .030                        .030                        .030               
Sulphur (max)......................  .030                        .030                        .030               
Silicon (max)......................  .75                         .75                         .75                
Nickel.............................  8.0/11.0                    9.0/13.0                    9.0/13.0           
Chromium...........................  18.0/20.0                   17.0/20.0                   17.0/20.0          
Molybdenum                                                                                                      
Titanium...........................  ..........................  (\1\)                                          
Columbium..........................  ..........................  ..........................  (\2\)              
----------------------------------------------------------------------------------------------------------------
\1\ Titanium may not be more than 5C and not more than 0.60%.                                                   
\2\ Columbium may not be less than 10C and not more than 1.0%.                                                  


                                       Table 2.--Check Analysis Tolerances                                      
----------------------------------------------------------------------------------------------------------------
                                                                                        Tolerance (percent) over
                                                                                          the maximum limit or  
                                                                                         under the minimum limit
            Element                       Limit or maximum specified (percent)         -------------------------
                                                                                           Under         Over   
                                                                                          minimum      maximum  
                                                                                           limit        limit   
----------------------------------------------------------------------------------------------------------------
Carbon.........................  To 0.15 incl.........................................         0.01         0.01
Manganese......................  Over 1.15 to 2.50 incl...............................         0.05         0.05
Phosphorus\1\..................  All ranges...........................................  ...........          .01
Sulphur........................  All ranges...........................................  ...........          .01
Silicon........................  Over 0.30 to 1.00 incl...............................          .05          .05
Nickel.........................  Over 5.30 to 10.00 incl..............................          .10          .10
                                 Over 10.00 to 14.00 incl.............................          .15          .15
Chromium.......................  Over 15.00 to 20.00 incl.............................          .20          .20
Titanium.......................  All ranges...........................................          .05          .05
Columbium......................  All ranges...........................................          .05         .05 
----------------------------------------------------------------------------------------------------------------
\1\Rephosphorized steels not subject to check analysis for phosphorus.                                          

    (c) Identification of material. Materials must be identified by any 
suitable method.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably, a reasonably smooth and 
uniform surface finish is required. No abrupt change in wall thickness 
is permitted. Welding procedures and operators must be qualified in 
accordance with CGA Pamphlet C-3. All seams of the sphere or cylinder 
must be fusion welded. Seams must be of the butt type and means must be 
provided for accomplishing complete penetration of the joint.
    (e) Attachments. Attachments to the container are authorized by 
fusion welding provided that such attachments are made of weldable 
stainless steel in accordance with paragraph (b) of this section.
    (f) Wall thickness. The minimum wall thickness must be such that the 
wall stress at the minimum specified test pressure may not be over 
60,000 psi. A minimum wall thickness of 0.040 inch is required for any 
diameter container. Calculations must be made by the following formulas:
    (1) Calculation for sphere must be made by the formula:

S=PD/4tE
Where:

S=Wall stress in pounds per square inch;
P=Test pressure prescribed for water jacket test, i.e., at least two 
times service pressure, in pounds per square inch;
D=Outside diameter in inches;
t=Minimum wall thickness in inches;
E=0.85 (provides 85 percent weld efficiency factor which must be applied 
in the girth weld area and heat zones which zone must extend a distance 
of 6 times wall thickness

[[Page 758]]

from center of weld); E=1.0 (for all other areas).

    (2) Calculation for a cylinder must be made by the formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)
Where:

S=Wall stress in pounds per square inch;
P=Test pressure prescribed for water jacket test, i.e., at least two 
times service pressure, in pounds per square inch;
D=Outside diameter in inches;
d=Inside diameter in inches.

    (g) Heat treatment. The seamless hemispheres and cylinders may be 
stress relieved or annealed for forming. Welded container must be stress 
relieved at a temperature of 775 deg. F +/- 25 deg. after process 
treatment and before hydrostatic test.
    (h) Openings in container. Openings must comply with the following:
    (1) Each opening in the container must be provided with a fitting, 
boss or pad of weldable stainless steel securely attached to the 
container by fusion welding.
    (2) Attachments to a fitting, boss, or pad must be adequate to 
prevent leakage. Threads must comply with the following:
    (i) Threads must be clean cut, even, without checks, and tapped to 
gauge.
    (ii) Taper threads to be of length not less than as specified for 
American Standard taper pipe threads.
    (iii) Straight threads having at least 4 engaged threads, to have 
tight fit and calculated shear strength at least 10 times the test 
pressure of the container; gaskets required, adequate to prevent 
leakage.
    (i) Process treatment. Each container must be hydraulically 
pressurized in a water jacket to at least 100 percent, but not more than 
110 percent, of the test pressure and maintained at this pressure for a 
minimum of 3 minutes. Total and permanent expansion must be recorded and 
included in the inspector's report.
    (j) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test as follows:
    (1) The test must be by water-jacket, operated so as to obtain 
accurate data. The pressure gauge must permit reading to an accuracy of 
1 percent. The expansion gauge must permit reading of total expansion to 
an accuracy either of 1 percent or 0.1 cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. If, due to failure of 
the test apparatus, the test pressure cannot be maintained, the test may 
be repeated at a pressure increased by 10 percent or 100 pounds per 
square inch, whichever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Each container must be tested to at least 2 times service 
pressure.
    (5) Container must then be inspected. Any wall thickness lower than 
that required by paragraph (f) of this section must be cause for 
rejection. Bulges and cracks must be cause for rejection. Welded joint 
defects exceeding requirements of paragraph (k) of this section must be 
cause for rejection.
    (k) Radiographic inspection. Radiographic inspection is required on 
all welded joints which are subjected to internal pressure, except that 
at the discretion of the disinterested inspector, openings less than 25 
percent of the container diameter need not be subjected to radiographic 
inspection. Evidence of any defects likely to seriously weaken the 
container is cause for rejection. Radiographic inspection must be 
performed subsequent to the hydrostatic test.
    (l) Burst test. One container taken at random out of 200 or less 
must be hydrostatically tested to destruction. Rupture pressure must be 
included as part of the inspector's report.
    (m) Flattening test. A flattening test must be performed as follows:
    (1) For spheres the test must be at the weld between parallel steel 
plates on a press with welded seam at right angles to the plates. Test 
one sphere taken at random out of each lot of 200 or less after the 
hydrostatic test. Any projecting appurtenances may be cut off (by 
mechanical means only) prior to crushing.
    (2) For cylinders the test must be between knife edges, wedge 
shaped, 60 deg. angle, rounded to \1/2\-inch radius. Test one cylinder 
taken at random out of

[[Page 759]]

each lot of 200 or less, after the hydrostatic test.
    (n) Acceptable results for flattening and burst tests. Acceptable 
results for flattening and burst tests are as follows:
    (1) Flattening required to 50 percent of the original outside 
diameter without cracking.
    (2) Burst pressure must be at least 3 times the service pressure.
    (o) Rejected containers. Repair of welded seams by welding prior to 
process treatment is authorized. Subsequent thereto, containers must be 
heat treated and pass all prescribed tests.
    (p) Duties of inspector. In addition to the requirements of 
Sec. 178.35, the inspector must verify that all tests are conducted at 
temperatures between 60  deg.F and 90  deg.F.
    (q) Marking. Markings must be stamped plainly and permanently on a 
permanent attachment or on a metal nameplate permanently secured to the 
container by means other than soft solder.



Sec. 178.50  Specification 4B welded or brazed steel cylinders.

    (a) Type, size, and service pressure. A DOT 4B is a welded or brazed 
steel cylinder with longitudinal seams that are forged lap-welded or 
brazed and with water capacity (nominal) not over 1,000 pounds and a 
service pressure of at least 150 but not over 500 pounds per square 
inch. Cylinders closed in by spinning process are not authorized.
    (b) Steel. Open-hearth, electric or basic oxygen process steel of 
uniform quality must be used. Content percent may not exceed the 
following: Carbon, 0.25; phosphorus, 0.045; sulphur, 0.050.
    (c) Identification of material. Material must be identified by any 
suitable method except that plates and billets for hotdrawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. Exposed bottom welds on cylinders 
over 18 inch long must be protected by footrings. Welding procedures and 
operators must be qualified in accordance with CGA Pamphlet C-3. Seams 
must be made as follows:
    (1) Welded or brazed circumferential seams. Heads attached by 
brazing must have a driving fit with the shell, unless the shell is 
crimped, swedged, or curled over the skirt or flange of the head, and be 
thoroughly brazed until complete penetration by the brazing material of 
the brazed joint is secured. Depth of brazing from end of shell must be 
at least four times the thickness of shell metal.
    (2) Longitudinal seams in shells. Longitudinal seams must be forged 
lap welded, by copper brazing, by copper alloy brazing, or by silver 
alloy brazing. Copper alloy composition must be: Copper, 95 percent 
minimum; Silicon, 1.5 percent to 3.85 percent; Manganese, 0.25 percent 
to 1.10 percent. The melting point of the silver alloy brazing material 
must be in excess of 1000 deg. F. When brazed, the plate edge must be 
lapped at least eight times the thickness of plate, laps being held in 
position, substantially metal to metal, by riveting or electric spot-
welding; brazing must be done by using a suitable flux and by placing 
brazing material on one side of seam and applying heat until this 
material shows uniformly along the seam of the other side.
    (e) Welding or brazing. Only the attachment of neckrings, footrings, 
handles, bosses, pads, and valve protection rings to the tops and 
bottoms of cylinders by welding or brazing is authorized. Such 
attachments and the portion of the container to which they are attached 
must be made of weldable steel, the carbon content of which may not 
exceed 0.25 percent except in the case of 4130X steel which may be used 
with proper welding procedure.
    (f) Wall thickness. The wall thickness of the cylinder must comply 
with the following requirements:
    (1) For cylinders with outside diameters over 6 inches the minimum 
wall thickness must be 0.090 inch. In any case, the minimum wall 
thickness must be such that calculated wall stress at minimum test 
pressure (paragraph (i)(4) of this section) may not exceed the following 
values:

[[Page 760]]

    (i) 24,000 pounds per square inch for cylinders without longitudinal 
seam.
    (ii) 22,800 pounds per square inch for cylinders having copper 
brazed or silver alloy brazed longitudinal seam.
    (iii) 18,000 pounds per square inch for cylinders having forged 
lapped welded longitudinal seam.
    (2) Calculation must be made by the formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)
Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test or 450 pounds 
per square inch whichever is the greater;
D=outside diameter in inches;
d=inside diameter in inches.

    (g) Heat treatment. Cylinder body and heads, formed by drawing or 
pressing, must be uniformly and properly heat treated prior to tests.
    (h) Opening in cylinders. Openings in cylinders must conform to the 
following:
    (1) Each opening in cylinders, except those for safety devices, must 
be provided with a fitting, boss, or pad, securely attached to cylinder 
by brazing or by welding or by threads. Fitting, boss, or pad must be of 
steel suitable for the method of attachment employed, and which need not 
be identified or verified as to analysis except that if attachment is by 
welding, carbon content may not exceed 0.25 percent. If threads are 
used, they must comply with the following:
    (i) Threads must be clean cut, even without checks, and tapped to 
gauge.
    (ii) Taper threads to be of length not less than as specified for 
American Standard taper pipe threads.
    (iii) Straight threads, having at least 4 engaged threads, to have 
tight fit and calculated shear strength at least 10 times the test 
pressure of the cylinder; gaskets required, adequate to prevent leakage.
    (iv) A brass fitting may be brazed to the steel boss or flange on 
cylinders used as component parts of hand fire extinguishers.
    (2) The closure of a fitting, boss, or pad must be adequate to 
prevent leakage.
    (i) Hydrostatic test. Cylinder must withstand a hydrostatic test as 
follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy either of 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Cylinders must be tested as follows:
    (i) At least one cylinder selected at random out of each lot of 200 
or less must be tested as outlined in paragraphs (i)(1), (i)(2), and 
(i)(3) of this section to at least two times service pressure.
    (ii) All cylinders not tested as outlined in paragraph (i)(4)(i) of 
this section must be examined under pressure of at least two times 
service pressure and show no defect.
    (j) Flattening test. After the hydrostatic test, a flattening test 
must be performed on one cylinder taken at random out or each lot of 200 
or less, by placing the cylinder between wedge shaped knife edges having 
a 60 deg. included angle, rounded to \1/2\-inch radius. The longitudinal 
axis of the cylinder must be at a 90-degree angle to knife edges during 
the test. For lots of 30 or less, flattening tests are authorized to be 
made on a ring at least 8 inches long cut from each cylinder and 
subjected to same heat treatment as the finished cylinder.
    (k) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material as follows:

[[Page 761]]

    (1) The test is required on 2 specimens cut from 1 cylinder, or part 
thereof heat-treated as required, taken at random out of each lot of 200 
or less. For lots of 30 or less, physical tests are authorized to be 
made on a ring at least 8 inches long cut from each cylinder and 
subjected to same heat treatment as the finished cylinder.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width of not over 1\1/2\ 
inches, a gauge length of 2 inches with a width of not over 1\1/2\ 
inches, or a gauge length at least 24 times the thickness with a width 
not over 6 times the thickness is authorized when a cylinder wall is not 
over \3/16\ inch thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within one inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch, and strain indicator reading must be set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (l) Acceptable results for physical and flattening tests. Either of 
the following is an acceptable result:
    (1) An elongation of at least 40 percent for a 2-inch gauge length 
or at least 20 percent in other cases and yield strength not over 73 
percent of tensile strength. In this instance, a flattening test is not 
required.
    (2) When cylinders are constructed of lap welded pipe, flattening 
test is required, without cracking, to 6 times the wall thickness. In 
such case, the rings (crop ends) cut from each end of pipe, must be 
tested with the weld 45 deg. or less from the point of greatest stress. 
If a ring fails, another from the same end of pipe may be tested.
    (m) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinder. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair of brazed seams by brazing and welded seams by 
welding is authorized.
    (n) Markings. Markings must be stamped plainly and permanently in 
any of the following locations on the cylinder:
    (1) On shoulders and top heads when they are not less than 0.087-
inch thick.
    (2) On side wall adjacent to top head for side walls which are not 
less than 0.090 inch thick.
    (3) On a cylindrical portion of the shell which extends beyond the 
recessed bottom of the cylinder, constituting an integral and non-
pressure part of the cylinder.
    (4) On a metal plate attached to the top of the cylinder or 
permanent part thereof; sufficient space must be left on the plate to 
provide for stamping at least six retest dates; the plate must be at 
least \1/16\-inch thick and must be attached by welding, or by brazing. 
The

[[Page 762]]

brazing rod must melt at a temperature of 1100  deg.F. Welding or 
brazing must be along all the edges of the plate.
    (5) On the neck, neckring, valve boss, valve protection sleeve, or 
similar part permanently attached to the top of the cylinder.
    (6) On the footring permanently attached to the cylinder, provided 
the water capacity of the cylinder does not exceed 25 pounds.
[Amdt. 178-114, 61 FR 25942, May 23, 1996, as amended at 62 FR 51561, 
Oct. 1, 1997]



Sec. 178.51  Specification 4BA welded or brazed steel cylinders.

    (a) Type, size, and service pressure. A DOT 4BA cylinder is a 
cylinder, either spherical or cylindrical in shape, with a water 
capacity of 1,000 pounds or less and a service pressure of at least 225 
and not over 500 pounds per square inch. Closures made by the spinning 
process are not authorized.
    (1) Spherical type cylinders must be made from two seamless 
hemispheres joined by the welding of one circumferential seam.
    (2) Cylindrical type cylinders must be of circumferentially welded 
or brazed construction.
    (b) Steel. The steel used in the construction of the cylinder must 
be as specified in Table 1 of Appendix A to this part.
    (c) Identification of material. Material must be identified by any 
suitable method except that plates and billets for hotdrawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. Exposed bottom welds on cylinders 
over 18 inches long must be protected by footrings.
    (1) Seams must be made as follows:
    (i) Minimum thickness of heads and bottoms must be not less than 90 
percent of the required thickness of the side wall.
    (ii) Circumferential seams must be made by welding or by brazing. 
Heads must be attached by brazing and must have a driving fit with the 
shell, unless the shell is crimped, swedged or curled over the skirt or 
flange of the head and must be thoroughly brazed until complete 
penetration by the brazing material of the brazed joint is secured. 
Depth of brazing from end of the shell must be at least four times the 
thickness of shell metal.
    (iii) Longitudinal seams in shells must be made by copper brazing, 
copper alloy brazing, or by silver alloy brazing. Copper alloy 
composition must be: Copper 95 percent minimum, Silicon 1.5 percent to 
3.85 percent, Manganese 0.25 percent to 1.10 percent. The melting point 
of the silver alloy brazing material must be in excess of 1,000  deg.F. 
The plate edge must be lapped at least eight times the thickness of 
plate, laps being held in position, substantially metal to metal, by 
riveting or by electric spot-welding. Brazing must be done by using a 
suitable flux and by placing brazing material on one side of seam and 
applying heat until this material shows uniformly along the seam of the 
other side. Strength of longitudinal seam: Copper brazed longitudinal 
seam must have strength at least \3/2\ times the strength of the steel 
wall.
    (2) Welding procedures and operators must be qualified in accordance 
with CGA Pamphlet C-3.
    (e) Welding and brazing. Only the welding or brazing of neckrings, 
footrings, handles, bosses, pads, and valve protection rings to the tops 
and bottoms of cylinders is authorized. Provided that such attachments 
and the portion of the container to which they are attached are made of 
weldable steel, the carbon content of which may not exceed 0.25 percent 
except in the case of 4130 x  steel which may be used with proper 
welding procedure.
    (f) Wall thickness. The minimum wall thickness of the cylinder must 
meet the following conditions:
    (1) For any cylinder with an outside diameter of greater than 6 
inches, the minimum wall thickness is 0.078 inch. In any case the 
minimum wall thickness must be such that the calculated wall stress at 
the minimum test pressure may not exceed the lesser value of any of the 
following:

[[Page 763]]

    (i) The value shown in Table I of Appendix A to this part, for the 
particular material under consideration;
    (ii) One-half of the minimum tensile strength of the material 
determined as required in paragraph (j) of this section;
    (iii) 35,000 pounds per square inch; or
    (iv) Further provided that wall stress for cylinders having copper 
brazed longitudinal seams may not exceed 95 percent of any of the above 
values. Measured wall thickness may not include galvanizing or other 
protective coating.
    (2) Cylinders that are cylindrical in shape must have the wall 
stress calculated by the formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test;
D=outside diameter in inches;
d=inside diameter in inches.

    (3) Cylinders that are spherical in shape must have the wall stress 
calculated by the formula:

S=PD/4tE

Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test;
D=outside diameter in inches;
t=minimum wall thickness in inches;
E=0.85 (provides 85 percent weld efficiency factor which must be applied 
in the girth weld area and heat affected zones which zone must extend a 
distance of 6 times wall thickness from center line of weld);
E=1.0 (for all other areas).

    (4) For a cylinder with a wall thickness less than 0.100 inch, the 
ratio of tangential length to outside diameter may not exceed 4.1.
    (g) Heat treatment. Cylinders must be heat treated in accordance 
with the following requirements:
    (1) Each cylinder must be uniformly and properly heat treated prior 
to test by the applicable method shown in Table I of Appendix A to this 
Part. Heat treatment must be accomplished after all forming and welding 
operations, except that when brazed joints are used, heat treatment must 
follow any forming and welding operations, but may be done before, 
during or after the brazing operations.
    (2) Heat treatment is not required after the welding or brazing of 
weldable low carbon parts to attachments of similar material which have 
been previously welded or brazed to the top or bottom of cylinders and 
properly heat treated, provided such subsequent welding or brazing does 
not produce a temperature in excess of 400 deg. F in any part of the top 
or bottom material.
    (h) Openings in cylinders. Openings in cylinders must comply with 
the following requirements:
    (1) Any opening must be placed on other than a cylindrical surface.
    (2) Each opening in a spherical type cylinder must be provided with 
a fitting, boss, or pad of weldable steel securely attached to the 
container by fusion welding.
    (3) Each opening in a cylindrical type cylinder must be provided 
with a fitting, boss, or pad, securely attached to container by brazing 
or by welding.
    (4) If threads are used, they must comply with the following:
    (i) Threads must be clean-cut, even, without checks and tapped to 
gauge.
    (ii) Taper threads must be of a length not less than that specified 
for American Standard taper pipe threads.
    (iii) Straight threads, having at least 4 engaged threads, must have 
a tight fit and a calculated shear strength of at least 10 times the 
test pressure of the cylinder. Gaskets, adequate to prevent leakage, are 
required.
    (i) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test, as follows:
    (1) The test must be by water jacket, or other suitable method, 
operated so as to obtain accurate data. A pressure gauge must permit 
reading to an accuracy of 1 percent. An expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after

[[Page 764]]

heat treatment and previous to the official test may not exceed 90 
percent of the test pressure.
    (3) Permanent volumetric expansion may not exceed 10 percent of the 
total volumetric expansion at test pressure.
    (4) Cylinders must be tested as follows:
    (i) At least one cylinder selected at random out of each lot of 200 
or less must be tested as outlined in paragraphs (i)(1), (i)(2), and 
(i)(3) of this section to at least two times service pressure.
    (ii) All cylinders not tested as outlined in paragraph (i)(4)(i) of 
this section must be examined under pressure of at least two times 
service pressure and show no defect.
    (j) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material, as follows:
    (1) The test is required on 2 specimens cut from one cylinder or 
part thereof having passed the hydrostatic test and heat-treated as 
required, taken at random out of each lot of 200 or less. Physical tests 
for spheres are required on 2 specimens cut from flat representative 
sample plates of the same heat taken at random from the steel used to 
produce the spheres. This flat steel from which 2 specimens are to be 
cut must receive the same heat treatment as the spheres themselves. 
Sample plates must be taken from each lot of 200 or less spheres.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
or a gauge length of 2 inches with a width not over 1\1/2\ inches, or a 
gauge length at least 24 times the thickness with a width not over 6 
times the thickness is authorized when a cylinder wall is not over \3/
16\ inch thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within one inch of each end of the reduced 
section.
    (iii) When size of the cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load''), corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain 
reference must be set while the specimen is under a stress of 12,000 
pounds per square inch, and the strain indicator reading must be set at 
the calculated corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (k) Elongation. Physical test specimens must show at least a 40 
percent elongation for a 2-inch gauge length or at least 20 percent in 
other cases. Except that these elongation percentages may be reduced 
numerically by 2 for 2-inch specimens, and by 1 in other cases, for each 
7,500 pounds per square inch increment of tensile strength above 50,000 
pounds per square inch to a maximum of four such increments.
    (l) Tests of welds. Except for brazed seams, welds must be tested as 
follows:
    (1) Tensile test. A specimen must be cut from one cylinder of each 
lot of 200

[[Page 765]]

or less, or welded test plate. The welded test plate must be of one of 
the heats in the lot of 200 or less which it represents, in the same 
condition and approximately the same thickness as the cylinder wall 
except that in no case must it be of a lesser thickness than that 
required for a quarter size Charpy impact specimen. The weld must be 
made by the same procedures and subjected to the same heat treatment as 
the major weld on the cylinder. The specimen must be taken from across 
the major seam and must be prepared and tested in accordance with and 
must meet the requirements of CGA Pamphlet C-3. Should this specimen 
fail to meet the requirements, specimens may be taken from two 
additional cylinders or welded test plates from the same lot and tested. 
If either of the latter specimens fail to meet the requirements, the 
entire lot represented must be rejected.
    (2) Guided bend test. A root bend test specimen must be cut from the 
cylinder or welded test plate, used for the tensile test specified in 
paragraph (l)(1) of this section. Specimens must be taken from across 
the major seam and must be prepared and tested in accordance with and 
must meet the requirements of CGA Pamphlet C-3.
    (3) Alternate guided-bend test. This test may be used and must be as 
required by CGA Pamphlet C-3. The specimen must be bent until the 
elongation at the outer surface, adjacent to the root of the weld, 
between the lightly scribed gage lines a to b, must be at least 20 
percent, except that this percentage may be reduced for steels having a 
tensile strength in excess of 50,000 pounds per square inch, as provided 
in paragraph (k) of this section.
    (m) Rejected cylinders. Reheat treatment is authorized for rejected 
cylinders. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair of brazed seams by brazing and welded seams by 
welding is authorized.
    (n) Markings. Markings must be stamped plainly and permanently in 
one of the following locations on the cylinder:
    (1) On shoulders and top heads not less than 0.087 inch thick.
    (2) On side wall adjacent to top head for side walls not less than 
0.090 inch thick.
    (3) On a cylindrical portion of the shell which extends beyond the 
recessed bottom of the cylinder constituting an integral and non-
pressure part of the cylinder.
    (4) On a plate attached to the top of the cylinder or permanent part 
thereof; sufficient space must be left on the plate to provide for 
stamping at least six retest dates; the plate must be at least \1/16\ 
inch thick and must be attached by welding, or by brazing at a 
temperature of at least 1100  deg.F., throughout all edges of the plate.
    (5) On the neck, neckring, valve boss, valve protection sleeve, or 
similar part permanently attached to the top of the cylinder.
    (6) On the footring permanently attached to the cylinder, provided 
the water capacity of the cylinder does not exceed 25 pounds.



Sec. 178.53  Specification 4D welded steel cylinders for aircraft use.

    (a) Type, size, and service pressure. A DOT 4D cylinder is a welded 
steel sphere (two seamless hemispheres) or circumferentially welded 
cylinder (two seamless drawn shells) with a water capacity not over 100 
pounds and a service pressure of at least 300 but not over 500 pounds 
per square inch. Cylinders closed in by spinning process are not 
authorized.
    (b) Steel. Open-hearth or electric steel of uniform and weldable 
quality must be used. Content may not exceed the following: Carbon, 
0.25; phosphorus, 0.045; sulphur, 0.050, except that the following 
steels commercially known as 4130X and Type 304, 316, 321, and 347 
stainless steels may be used with proper welding procedure. A heat of 
steel made under Table 1 in this paragraph (b), check chemical analysis 
of which is slightly out of the specified range, is acceptable, if 
satisfactory in all other respects, provided the tolerances shown in 
Table 2 in this paragraph (b) are not exceeded, except as approved by 
the Associate Administrator. The following chemical analyses are 
authorized:

[[Page 766]]



                          Table 1.--4130X Steel                         
------------------------------------------------------------------------
                   4130X                               Percent          
------------------------------------------------------------------------
Carbon.....................................  0.25/0.35.                 
Manganese..................................  0.40/0.60.                 
Phosphorus.................................  0.04 max.                  
Sulphur....................................  0.05 max                   
Silicon....................................  0.15/0.35.                 
Chromium...................................  0.80/1.10.                 
Molybdenum.................................  0.15/0.25.                 
Zirconium..................................  None.                      
Nickel.....................................  None.                      
------------------------------------------------------------------------


                                      Table 2.--Authorized Stainless Steels                                     
----------------------------------------------------------------------------------------------------------------
                                                                         Stainless steels                       
                                                 ---------------------------------------------------------------
                                                  304  (percent)  316  (percent)  321  (percent)  347  (percent)
----------------------------------------------------------------------------------------------------------------
Carbon (max)....................................            0.08            0.08            0.08            0.08
Manganese (max).................................            2.00            2.00            2.00            2.00
Phosphorus (max)................................            .030            .045            .030            .030
Sulphur (max)...................................            .030            .030            .030            .030
Silicon (max)...................................             .75            1.00             .75             .75
Nickel..........................................        8.0/11.0       10.0/14.0        9.0/13.0        9.0/13.0
Chromium........................................       18.0/20.0       16.0/18.0       17.0/20.0       17.0/20.0
Molybdenum......................................  ..............         2.0/3.0  ..............  ..............
Titanium........................................  ..............  ..............           (\1\)  ..............
Columbium.......................................  ..............  ..............  ..............          (\2\) 
----------------------------------------------------------------------------------------------------------------
\1\ Titanium may not be less than 5C and not more than 0.60%.                                                   
\2\ Columbium may not be less than 10C and not more than 1.0%.                                                  


                                       Table 3.--Check Analysis Tolerances                                      
----------------------------------------------------------------------------------------------------------------
                                                                                        Tolerance (percent) over
                                                                                          the maximum limit or  
                                                                                         under the minimum limit
            Element                      Limit or maximum specified  (percent)         -------------------------
                                                                                           Under         Over   
                                                                                          minimum      maximum  
                                                                                           limit        limit   
----------------------------------------------------------------------------------------------------------------
Carbon.........................  To 0.15 incl.........................................         0.01         0.01
                                 Over 0.15 to 0.40 incl...............................          .03          .04
Manganese......................  To 0.60 incl.........................................          .03          .03
                                 Over 1.15 to 2.50 incl...............................          .05          .05
Phosphorus \1\.................  All ranges...........................................  ...........          .01
Sulphur........................  All ranges...........................................  ...........          .01
Silicon........................  To 0.30 incl.........................................          .02          .03
                                 Over 0.30 to 1.00 incl...............................          .05          .05
Nickel.........................  Over 5.30 to 10.00 incl..............................          .10          .10
                                 Over 10.00 to 14.00 incl.............................          .15          .15
Chromium.......................  To 0.90 incl.........................................          .03          .03
                                 Over 0.90 to 2.10 incl...............................          .05          .05
                                 Over 15.00 to 20.00 incl.............................          .20          .20
Molybdenum.....................  To 0.20 incl.........................................          .01          .01
                                 Over 0.20 to 0.40 incl...............................          .02          .02
                                 Over 1.75 to 3.0 incl................................          .10          .10
Titanium.......................  All ranges...........................................          .05          .05
Columbium......................  All ranges...........................................          .05          .05
----------------------------------------------------------------------------------------------------------------
\1\ Rephosphorized steels not subject to check analysis for phosphorus.                                         

    (c) Identification of material. Material must be identified by any 
suitable method except that plates and billets for hotdrawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished container appreciably. A reasonably smooth and 
uniform surface finish is required. Welding procedures and operators 
must be qualified in accordance with CGA Pamphlet C-3.
    (e) Wall thickness. The wall stress at the minimum test pressure may 
not exceed 24,000 pounds per square inch, except where steels 
commercially known as 4130X, types 304, 316, 321, and 347 stainless 
steels are used, stress at the

[[Page 767]]

test pressures may not exceed 37,000 pounds per square inch. The minimum 
wall thickness for any container having a capacity of 1,100 cubic inches 
or less is 0.04 inch. The minimum wall thickness for any container 
having a capacity in excess of 1,100 cubic inches is 0.095 inch. 
Calculations must be done by the following:
    (1) Calculation for a ``sphere'' must be made by the formula:

S=PD/4tE

Where:

S=wall stress in pounds per square inch;
P=test pressure prescribed for water jacket test, i.e., at least two 
times service pressure, in pounds per square inch;
D=outside diameter in inches;
t=minimum wall thickness in inches;
E=0.85 (provides 85 percent weld efficiency factor which must be applied 
in the girth weld area and heat affected zones which zone must extend a 
distance of 6 times wall thickness from center line of weld);
E=1.0 (for all other areas).

    (2) Calculation for a cylinder must be made by the formula:

S=[P(1.3D2+0.4d2)]/(D2-dT12)

Where:

S=wall stress in pounds per square inch;
P=test pressure prescribed for water jacket test, i.e., at least two 
times service pressure, in pounds per square inch;
D=outside diameter in inches;
d=inside diameter in inches.

    (f) Heat treatment. The completed cylinders must be uniformly and 
properly heat-treated prior to tests.
    (g) Openings in container. Openings in cylinders must comply with 
the following:
    (1) Each opening in the container, except those for safety devices, 
must be provided with a fitting, boss, or pad, securely attached to the 
container by brazing or by welding or by threads. If threads are used, 
they must comply with the following:
    (i) Threads must be clean cut, even, without checks, and tapped to 
gauge.
    (ii) Taper threads must be of a length not less than that specified 
for American Standard taper pipe threads.
    (iii) Straight threads, having at least 4 engaged threads, must have 
a tight fit and calculated shear strength of at least 10 times the test 
pressure of the container. Gaskets, adequate to prevent leakage, are 
required.
    (2) Closure of a fitting, boss, or pad must be adequate to prevent 
leakage.
    (h) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test, as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. A pressure gauge must permit a 
reading to an accuracy of 1 percent. An expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of the 
total volumetric expansion at test pressure.
    (4) Containers must be tested as follows:
    (i) Each container to at least 2 times service pressure; or
    (ii) One container out of each lot of 200 or less to at least 3 
times service pressure. Others must be examined under pressure of 2 
times service pressure and show no defects.
    (i) Flattening test for spheres and cylinders. Spheres and cylinders 
must be subjected to a flattening test as follows:
    (1) One sphere taken at random out of each lot of 200 or less must 
be subjected to a flattening test as follows:
    (i) The test must be performed after the hydrostatic test.
    (ii) The test must be between parallel steel plates on a press with 
a welded seam at right angles to the plates. Any projecting 
appurtenances may be cut

[[Page 768]]

off (by mechanical means only) prior to crushing.
    (2) One cylinder taken at random out of each lot of 200 or less must 
be subjected to a flattening test, as follows:
    (i) The test must be performed after the hydrostatic test.
    (ii) The test must be between knife edges, wedge shaped, 60 deg. 
angle, rounded to \1/2\ inch radius. For lots of 30 or less, physical 
tests are authorized to be made on a ring at least 8 inches long cut 
from each cylinder and subjected to the same heat treatment as the 
finished cylinder.
    (j) Physical test and specimens for spheres and cylinders. Spheres 
and cylinders must be subjected to a physical test as follows:
    (1) Physical test for spheres are required on 2 specimens cut from a 
flat representative sample plate of the same heat taken at random from 
the steel used to produce the sphere. This flat steel from which the 2 
specimens are to be cut must receive the same heat-treatment as the 
spheres themselves. Sample plates must be taken for each lot of 200 or 
less spheres.
    (2) Specimens for spheres must have a gauge length 2 inches with a 
width not over 1\1/2\ inches, or a gauge length at least 24 times the 
thickness with a width not over 6 times the thickness is authorized when 
a wall is not over \3/16\ inch thick.
    (3) Physical test for cylinders is required on 2 specimens cut from 
1 cylinder taken at random out of each lot of 200 or less. For lots of 
30 or less, physical tests are authorized to be made on a ring at least 
8 inches long cut from each cylinder and subjected to the same heat 
treatment as the finished cylinder.
    (4) Specimens for cylinders must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
or a gauge length of 2 inches with a width not over 1\1/2\ inches, or a 
gauge length at least 24 times the thickness with a width not over 6 
times the thickness is authorized when a cylinder wall is not over \3/
16\ inch thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within 1 inch of each end of the reduced 
section. Heating of the specimen for any purpose is not authorized.
    (5) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch and the strain indicator reading being set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (k) Acceptable results for physical and flattening tests. Either of 
the following is an acceptable result:
    (1) An elongation of at least 40 percent for a 2 inch gauge length 
or at least 20 percent in other cases and yield strength not over 73 
percent of tensile strength. In this instance, the flattening test is 
not required.
    (2) An elongation of at least 20 percent for a 2 inch gauge length 
or 10 percent in other cases. Flattening is required to 50 percent of 
the original outside diameter without cracking.
    (l) Rejected cylinders. Reheat-treatment is authorized for rejected 
cylinders. Subsequent thereto, containers must pass all prescribed tests 
to be acceptable. Repair of welded seams by welding prior to reheat-
treatment is authorized.

[[Page 769]]

    (m) Marking. Marking on each container by stamping plainly and 
permanently are only authorized where the metal is at least 0.09 inch 
thick, or on a metal nameplate permanently secured to the container by 
means other than soft solder, or by means that would not reduce the wall 
thickness.



Sec. 178.55  Specification 4B240ET welded or brazed cylinders.

    (a) Type, spinning process, size and service pressure. A DOT 4B240ET 
cylinder is a brazed type cylinder made from electric resistance welded 
tubing. The maximum water capacity of this cylinder is 12 pounds or 333 
cubic inches and the service must be 240 pounds per square inch. The 
maximum outside diameter of the shell must be five inches and maximum 
length of the shell is 21 inches. Cylinders closed in by a spinning 
process are authorized.
    (b) Steel. Open-hearth, basic oxygen, or electric steel of uniform 
quality must be used. Plain carbon steel content may not exceed the 
following: Carbon, 0.25; phosphorus, 0.045; sulfur, 0.050. The addition 
of other elements for alloying effect is prohibited.
    (c) Identification of material. Material must be identified by any 
suitable method.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. Heads may be attached to shells by 
lap brazing or may be formed integrally. The thickness of the bottom of 
cylinders welded or formed by spinning is, under no condition, to be 
less than two times the minimum wall thickness of the cylindrical shell. 
Such bottom thicknesses must be measured within an area bounded by a 
line representing the points of contact between the cylinder and the 
floor when the cylinder is in a vertical position. Seams must conform to 
the following:
    (1) Circumferential seams must be by brazing only. Heads must be 
attached to shells by the lap brazing method and must overlap not less 
than four times the wall thickness. Brazing material must have a melting 
point of not less than 1000 deg. F. Heads must have a driving fit with 
the shell unless the shell is crimped, swedged, or curled over the skirt 
or flange of the head and be thoroughly brazed until complete 
penetration of the joint by the brazing material is secured. Brazed 
joints may be repaired by brazing.
    (2) Longitudinal seams in shell must be by electric resistance 
welded joints only. No repairs to longitudinal joints is permitted.
    (3) Welding procedures and operators must be qualified in accordance 
with CGA Pamphlet C-3.
    (e) Welding or brazing. Only the attachment, by welding or brazing, 
to the tops and bottoms of cylinders of neckrings, footrings, handles, 
bosses, pads, and valve protection rings is authorized. Provided that 
such attachments and the portion of the container to which they are 
attached are made of weldable steel, the carbon content of which may not 
exceed 0.25 percent.
    (f) Wall thickness. The wall stress must be at least two times the 
service pressure and may not exceed 18,000 pounds per square inch. The 
minimum wall thickness is 0.044 inch. Calculation must be made by the 
following formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

Where:

S=wall stress in pounds per square inch;
P=2 times service pressure;
D=outside diameter in inches;
d=inside diameter in inches.

    (g) Heat treatment. Heads formed by drawing or pressing must be 
uniformly and properly heat treated prior to tests. Cylinders with 
integral formed heads or bases must be subjected to a normalizing 
operation. Normalizing and brazing operations may be combined, provided 
the operation is carried out at a temperature in excess of the upper 
critical temperature of the steel.
    (h) Openings in cylinders. Openings in cylinders must comply with 
the following:
    (1) Each opening in cylinders, except those for safety devices, must 
be provided with a fitting, boss, or pad, securely attached to the 
cylinder by

[[Page 770]]

brazing or by welding or by threads. A fitting, boss, or pad must be of 
steel suitable for the method of attachment employed, and which need not 
be identified or verified as to analysis, except that if attachment is 
by welding, carbon content may not exceed 0.25 percent. If threads are 
used, they must comply with the following:
    (i) Threads must be clean cut, even without checks, and tapped to 
gauge.
    (ii) Taper threads to be of length not less than as specified for 
American Standard taper pipe threads.
    (iii) Straight threads, having at least 4 engaged threads, to have 
tight fit and calculated shear strength at least 10 times the test 
pressure of the cylinder; gaskets required, adequate to prevent leakage.
    (2) Closure of a fitting, boss, or pad must be adequate to prevent 
leakage.
    (i) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Cylinders must be tested as follows:
    (i) At least one cylinder selected at random out of each lot of 200 
or less must be tested as outlined in paragraphs (i)(1), (i)(2), and 
(i)(3) of this section to at least two times service pressure.
    (ii) All cylinders not tested as outlined in paragraph (i)(4)(i) of 
this section must be examined under pressure of at least two times 
service pressure and show no defect.
    (5) Each 1000 cylinders or less successively produced each day must 
constitute a lot. One cylinder must be selected from each lot and 
hydrostatically tested to destruction. If this cylinder bursts below 
five times the service pressure, then two additional cylinders must be 
selected and subjected to this test. If either of these cylinders fails 
by bursting below five times the service pressure then the entire lot 
must be rejected. All cylinders constituting a lot must be of identical 
size, construction heat-treatment, finish, and quality.
    (j) Flattening test. Following the hydrostatic test, one cylinder 
taken at random out of each lot of 200 or less, must be subjected to a 
flattening test that is between knife edges, wedge shaped, 60 deg. 
angle, rounded to \1/2\ inch radius.
    (k) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material, as follows:
    (1) The test is required on 2 specimens cut from 1 cylinder, or part 
thereof heat-treated as required, taken at random out of each lot of 200 
or less in the case of cylinders of capacity greater than 86 cubic 
inches and out of each lot of 500 or less for cylinders having a 
capacity of 86 cubic inches or less.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
a gauge length of 2 inches with a width not over 1\1/2\ inches, or a 
gauge length at least 24 times the thickness with a width not over 6 
times the thickness is authorized when a cylinder wall is not over \3/
16\ inch thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within one inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be

[[Page 771]]

straightened or flattened cold by pressure only, not by blows. When 
specimens are so taken and prepared, the inspector's report must show in 
connection with record of physical tests detailed information in regard 
to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch and the strain indicator reading being set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (l) Acceptable results for physical and flattening tests. Acceptable 
results for the physical and flattening tests are an elongation of at 
least 40 percent for a 2 inch gauge length or at least 20 percent in 
other cases and a yield strength not over 73 percent of tensile 
strength. In this instance the flattening test is required, without 
cracking, to six times the wall thickness with a weld 90 deg. from the 
direction of the applied load. Two rings cut from the ends of length of 
pipe used in production of a lot may be used for the flattening test 
provided the rings accompany the lot which they represent in all thermal 
processing operations. At least one of the rings must pass the 
flattening test.
    (m) Leakage test. All spun cylinders and plugged cylinders must be 
tested for leakage by gas or air pressure after the bottom has been 
cleaned and is free from all moisture, subject to the following 
conditions:
    (1) Pressure, approximately the same as but no less than service 
pressure, must be applied to one side of the finished bottom over an 
area of at least \1/16\ of the total area of the bottom but not less 
than \3/4\ inch in diameter, including the closure, for at least 1 
minute, during which time the other side of the bottom exposed to 
pressure must be covered with water and closely examined for indications 
of leakage. Except as provided in paragraph (n) of this section, 
cylinders which are leaking must be rejected.
    (2) A spun cylinder is one in which an end closure in the finished 
cylinder has been welded by the spinning process.
    (3) A plugged cylinder is one in which a permanent closure in the 
bottom of a finished cylinder has been effected by a plug.
    (4) As a safety precaution, if the manufacturer elects to make this 
test before the hydrostatic test, he should design his apparatus so that 
the pressure is applied to the smallest area practicable, around the 
point of closure, and so as to use the smallest possible volume of air 
or gas.
    (n) Rejected cylinders. Repairs of rejected cylinders is authorized. 
Cylinders that are leaking must be rejected, except that:
    (1) Spun cylinders rejected under the provisions of paragraph (m) of 
this section may be removed from the spun cylinder category by drilling 
to remove defective material, tapping, and plugging.
    (2) Brazed joints may be rebrazed.
    (3) Subsequent to the operations noted in paragraphs (n)(1) and 
(n)(2) of this section, acceptable cylinders must pass all prescribed 
tests.
    (o) Marking. Markings on each cylinder must be by stamping plainly 
and permanently on shoulder, top head, neck or valve protection collar 
which is permanently attached to the cylinders and forming an integral 
part

[[Page 772]]

thereof, provided that cylinders not less than 0.090 inch thick may be 
stamped on the side wall adjacent to top head.



Sec. 178.56  Specification 4AA480 welded steel cylinders.

    (a) Type, size, and service pressure. A DOT 4AA480 cylinder is a 
welded steel cylinder having a water capacity (nominal) not over 1,000 
pounds water capacity and a service pressure of 480 pounds per square 
inch. Closures welded by spinning process not permitted.
    (b) Steel. The limiting chemical composition of steel authorized by 
this specification must be as shown in Table I of Appendix A to this 
part.
    (c) Identification of material. Material must be identified by any 
suitable method except that plates and billets for hotdrawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. Exposed bottom welds on cylinders 
over 18 inches long must be protected by footrings. Minimum thickness of 
heads and bottoms may not be less than 90 percent of the required 
thickness of the side wall. Seams must be made as follows:
    (1) Circumferential seams must be welded. Brazing is not authorized.
    (2) Longitudinal seams are not permitted.
    (3) Welding procedures and operators must be qualified in accordance 
with CGA Pamphlet C-3.
    (e) Welding. Only the welding of neckrings, footrings, bosses, pads, 
and valve protection rings to the tops and bottoms of cylinders is 
authorized. Provided that such attachments are made of weldable steel, 
the carbon content of which does not exceed 0.25 percent.
    (f) Wall thickness. The wall thickness of the cylinder must conform 
to the following:
    (1) For cylinders with an outside diameter over 5 inches, the 
minimum wall thickness is 0.078 inch. In any case, the minimum wall 
thickness must be such that the calculated wall stress at the minimum 
test pressure (in paragraph (i) of this section) may not exceed the 
lesser value of either of the following:
    (i) One-half of the minimum tensile strength of the material 
determined as required in paragraph (j) of this section; or
    (ii) 35,000 pounds per square inch.
    (2) Calculation must be made by the formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test;
D=outside diameter in inches;
d=inside diameter in inches.

    (3) The ratio of tangential length to outside diameter may not 
exceed 4.0 for cylinders with a wall thickness less than 0.100 inch.
    (g) Heat treatment. Each cylinder must be uniformly and properly 
heat treated prior to tests. Any suitable heat treatment in excess of 
1100 deg. F is authorized except that liquid quenching is not permitted. 
Heat treatment must be accomplished after all forming and welding 
operations. Heat treatment is not required after welding weldable low 
carbon parts to attachments of similar material which have been 
previously welded to the top or bottom of cylinders and properly heat 
treated, provided such subsequent welding does not produce a temperature 
in excess of 400  deg.F., in any part of the top or bottom material.
    (h) Openings in cylinders. Openings in cylinders must conform to the 
following:
    (1) All openings must be in the heads or bases.
    (2) Each opening in the cylinder, except those for safety devices, 
must be provided with a fitting boss, or pad, securely attached to the 
cylinder by welding or by threads. If threads are used they must comply 
with the following:
    (i) Threads must be clean-cut, even without checks and cut to gauge.

[[Page 773]]

    (ii) Taper threads to be of length not less than as specified for 
American Standard taper pipe threads.
    (iii) Straight threads having at least 6 engaged threads, must have 
a tight fit and a calculated shear strength at least 10 times the test 
pressure of the cylinder. Gaskets, adequate to prevent leakage, are 
required.
    (3) Closure of a fitting, boss or pad must be adequate to prevent 
leakage.
    (i) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test as follows:
    (1) The test must be by water jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds or 
sufficiently longer to assure complete expansion. Any internal pressure 
applied after heat-treatment and before the official test may not exceed 
90 percent of the test pressure. If, due to failure of test apparatus, 
the test pressure cannot be maintained, the test may be repeated at a 
pressure increased by 10 percent or 100 pounds per square inch, 
whichever is lower.
    (3) Permanent volumetric expansion may not exceed 10 percent of the 
total volumetric expansion at test pressure.
    (4) Cylinders must be tested as follows:
    (i) At least one cylinder selected at random out of each lot of 200 
or less must be tested as described in paragraphs (i)(1), (i)(2), and 
(i)(3) of this section, to at least two times service pressure. If a 
selected cylinder fails, then two additional specimens must be selected 
at random from the same lot and subjected to the prescribed test. If 
either of these fails the test, then each cylinder in that lot must be 
so tested; and
    (ii) Each cylinder not tested as prescribed in paragraph (i)(4)(i) 
of this section must be examined under pressure of at least two times 
service pressure and must show no defect. A cylinder showing a defect 
must be rejected unless it may be requalified under paragraph (m) of 
this section.
    (j) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material, as follows:
    (1) The test is required on 2 specimens cut from one cylinder having 
passed the hydrostatic test, or part thereof heat-treated as required, 
taken at random out of each lot of 200 or less.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
a gauge length of 2 inches with a width not over 1\1/2\ inches, or a 
gauge length at least 24 times the thickness with a width not over 6 
times thickness is authorized when the cylinder wall is not over \3/16\ 
inch thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within one inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load''), corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain

[[Page 774]]

diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain 
reference must be set while the specimen is under a stress of 12,000 
pounds per square inch and the strain indicator reading being set at the 
calculated corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (k) Elongation. Physical test specimens must show at least a 40 
percent elongation for 2-inch gauge lengths or at least a 20 percent 
elongation in other cases. Except that these elongation percentages may 
be reduced numerically by 2 for 2-inch specimens and by 1 in other cases 
for each 7,500 pounds per square inch increment of tensile strength 
above 50,000 pounds per square inch to a maximum of four such 
increments.
    (l) Tests of welds. Welds must be tested as follows:
    (1) Tensile test. A specimen must be cut from one cylinder of each 
lot of 200 or less, or a welded test plate. The welded test plate must 
be of one of the heats in the lot of 200 or less which it represents, in 
the same condition and approximately the same thickness as the cylinder 
wall except that it may not be of a lesser thickness than that required 
for a quarter size Charpy impact specimen. The weld must be made by the 
same procedures and subjected to the same heat treatment as the major 
weld on the cylinder. The specimens must be taken across the major seam 
and must be prepared and tested in accordance with and must meet the 
requirements of CGA Pamphlet C-3. Should this specimen fail to meet the 
requirements, specimens may be taken from two additional cylinders or 
welded test plates from the same lot and tested. If either of the latter 
specimens fail to meet the requirements, the entire lot represented must 
be rejected.
    (2) Guided bend test. A root bend test specimen must be cut from the 
cylinder or a welded test plate, used for the tensile test specified in 
paragraph (l)(1) of this section. Specimens must be taken from across 
the major seam and must be prepared and tested in accordance with and 
must meet the requirements of CGA Pamphlet C-3.
    (3) Alternate guided-bend test. This test may be used and must be as 
required by CGA Pamphlet C-3. The specimen must be bent until the 
elongation at the outer surface, adjacent to the root of the weld, 
between the lightly scribed gage lines-a to b, is at least 20 percent, 
except that this percentage may be reduced for steels having a tensile 
strength in excess of 50,000 pounds per square inch, as provided in 
paragraph (k) of this section.
    (m) Rejected cylinders. Reheat treatment of rejected cylinders is 
authorized. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair of welded seams by welding is authorized.
    (n) Markings. Markings must be stamped plainly and permanently in 
one of the following locations on the cylinder:
    (1) On shoulders and top heads not less than 0.087 inch thick.
    (2) On neck, valve boss, valve protection sleeve, or similar part 
permanently attached to top end of cylinder.
    (3) On a plate attached to the top of the cylinder or permanent part 
thereof: sufficient space must be left on the plate to provide for 
stamping at least six retest dates: the plate must be at least \1/16\ 
inch thick and must be attached by welding or by brazing at a 
temperature of at least 1100 deg. F, throughout all edges of the plate.
    (4) Variations in location of markings authorized only when 
necessitated by lack of space.



Sec. 178.57  Specification 4L welded insulated cylinders.

    (a) Type, size, service pressure, and design service temperature. A 
DOT 4L cylinder is a fusion welded insulated cylinder with a water 
capacity (nominal) not over 1,000 pounds water capacity and a service 
pressure of at least 40 but not greater than 500 pounds per square inch 
conforming to the following requirements:
    (1) For liquefied hydrogen service, the cylinders must be designed 
to stand on end, with the axis of the cylindrical portion vertical.

[[Page 775]]

    (2) The design service temperature is the coldest temperature for 
which a cylinder is suitable. The required design service temperatures 
for each cryogenic liquid is as follows:

                                                                        
------------------------------------------------------------------------
             Cryogenic liquid                Design service temperature 
------------------------------------------------------------------------
Argon.....................................  Minus 320  deg.F or colder. 
Helium....................................  Minus 452  deg.F or colder. 
Hydrogen..................................  Minus 42 3 deg.F or colder. 
Neon......................................  Minus 411  deg.F or colder. 
Nitrogen..................................  Minus 320  deg.F or colder. 
Oxygen....................................  Minus 320  deg.F or colder. 
------------------------------------------------------------------------

    (b) Material. Material use in the construction of this specification 
must conform to the following:
    (1) Inner containment vessel (cylinder). Designations and limiting 
chemical compositions of steel authorized by this specification must be 
as shown in Table 1 in paragraph (o) of this section.
    (2) Outer jacket. Steel or aluminum may be used subject to the 
requirements of paragraph (o)(2) of this section.
    (c) Identification of material. Material must be identified by any 
suitable method.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart and to the following requirements:
    (1) No defect is permitted that is likely to weaken the finished 
cylinder appreciably. A reasonably smooth and uniform surface finish is 
required. The shell portion must be a reasonably true cylinder.
    (2) The heads must be seamless, concave side to the pressure, 
hemispherical or ellipsoidal in shape with the major diameter not more 
than twice the minor diameter. Minimum thickness of heads may not be 
less than 90 percent of the required thickness of the sidewall. The 
heads must be reasonably true to shape, have no abrupt shape changes, 
and the skirts must be reasonably true to round.
    (3) The surface of the cylinder must be insulated. The insulating 
material must be fire resistant. The insulation on non-evacuated jackets 
must be covered with a steel jacket not less than 0.060-inch thick or an 
aluminum jacket not less than 0.070 inch thick, so constructed that 
moisture cannot come in contact with the insulating material. If a 
vacuum is maintained in the insulation space, the evacuated jacket must 
be designed for a minimum collapsing pressure of 30 psi differential 
whether made of steel or aluminum. The construction must be such that 
the total heat transfer, from the atmosphere at ambient temperature to 
the contents of the cylinder, will not exceed 0.0005 Btu per hour, per 
Fahrenheit degree differential in temperature, per pound of water 
capacity of the cylinder. For hydrogen, cryogenic liquid service, the 
total heat transfer, with a temperature differential of 520 Fahrenheit 
degrees, may not exceed that required to vent 30 SCF of hydrogen gas per 
hour.
    (4) For a cylinder having a design service temperature colder than 
minus 320  deg.F, a calculation of the maximum weight of contents must 
be made and that weight must be marked on the cylinder as prescribed in 
Sec. 178.35.
    (5) Welding procedures and operators must be qualified in accordance 
with CGA Pamphlet C-3. In addition, an impact test of the weld must be 
performed in accordance with paragraph (l) of this section as part of 
the qualification of each welding procedure and operator.
    (e) Welding. Welding of the cylinder must be as follows:
    (1) All seams of the cylinder must be fusion welded. A means must be 
provided for accomplishing complete penetration of the joint. Only butt 
or joggle butt joints for the cylinder seams are authorized. All joints 
in the cylinder must have reasonably true alignment.
    (2) All attachments to the sidewalls and heads of the cylinder must 
be by fusion welding and must be of a weldable material complying with 
the impact requirements of paragraph (l) of this section.
    (3) For welding the cylinder, each procedure and operator must be 
qualified in accordance with the sections of CGA Pamphlet C-3 that 
apply. In addition, impact tests of the weld must be performed in 
accordance with paragraph (l) of this section as part of the 
qualification of each welding procedure and operator.
    (4) Brazing, soldering and threading are permitted only for joints 
not made directly to the cylinder body. Threads

[[Page 776]]

must comply with the requirements of paragraph (h) of this section.
    (f) Wall thickness. The minimum wall thickness of the cylinder must 
be such that the calculated wall stress at the minimum required test 
pressure may not exceed the least value of the following:
    (1) 45,000 pounds per square inch.
    (2) One-half of the minimum tensile strength across the welded seam 
determined in paragraph (l) of this section.
    (3) One-half of the minimum tensile strength of the base metal 
determined as required in paragraph (j) of this section.
    (4) The yield strength of the base metal determined as required in 
paragraph (l) of this section.
    (5) Further provided that wall stress for cylinders having 
longitudinal seams may not exceed 85 percent of the above value, 
whichever applies.
    (6) Calculation must be made by the following formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for pressure test in pounds per 
square inch;
D=outside diameter in inches;
d=inside diameter in inches.

    (g) Heat treatment. Heat treatment is not permitted.
    (h) Openings in cylinder. Openings in cylinders must conform to the 
following:
    (1) Openings are permitted in heads only. They must be circular and 
may not exceed 3 inches in diameter or one third of the cylinder 
diameter, whichever is less. Each opening in the cylinder must be 
provided with a fitting, boss or pad, either integral with, or securely 
attached to, the cylinder body by fusion welding. Attachments to a 
fitting, boss or pad may be made by welding, brazing, mechanical 
attachment, or threading.
    (2) Threads must comply with the following:
    (i) Threads must be clean-cut, even, without checks and cut to 
gauge.
    (ii) Taper threads to be of a length not less than that specified 
for NPT.
    (iii) Straight threads must have at least 4 engaged threads, tight 
fit and calculated shear strength at least 10 times the test pressure of 
the cylinder. Gaskets, which prevent leakage and are inert to the 
hazardous material, are required.
    (i) Pressure test. Each cylinder, before insulating and jacketing, 
must be examined under a pressure of at least 2 times the service 
pressure maintained for at least 30 seconds without evidence of leakage, 
visible distortion or other defect. The pressure gauge must permit 
reading to an accuracy of 1 percent.
    (j) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, and elongation as follows:
    (1) The test is required on 2 specimens selected from material of 
each heat and in the same condition as that in the completed cylinder.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
a gauge length of 2 inches with width not over 1\1/2\ inches, or a gauge 
length at least 24 times thickness with a width not over 6 times 
thickness (authorized when cylinder wall is not over \1/16\ inch thick).
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within one inch of each end of the reduced 
section.
    (iii) When size of the cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold by pressure only, not by blows. 
When specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.

[[Page 777]]

    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load''), corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic expansion of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on the elastic modulus of 
the material used. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain 
reference must be set while the specimen is under a stress of 12,000 
pounds per square inch and the strain indicator reading being set at the 
calculated corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (k) Acceptable results for physical tests. Physical properties must 
meet the limits specified in paragraph (o)(1), Table 1, of this section, 
for the particular steel in the annealed condition. The specimens must 
show at least a 20 percent elongation for a 2-inch gage length. Except 
that the percentage may be reduced numerically by 2 for each 7,500 
pounds per square inch increment of tensile strength above 100,000 
pounds per square inch to a maximum of 5 such increments. Yield strength 
and tensile strength must meet the requirements of paragraph (o)(1), 
Table 1, of this section.
    (l) Tests of welds. Welds must be tested as follows:
    (1) Tensile test. A specimen must be cut from one cylinder of each 
lot of 200 or less, or welded test plate. The welded test plate must be 
of one of the heats in the lot of 200 or less which it represents, in 
the same condition and approximately the same thickness as the cylinder 
wall except that it may not be of a lesser thickness than that required 
for a quarter size Charpy impact specimen. The weld must be made by the 
same procedures and subjected to the same heat treatment as the major 
weld on the cylinder. The specimen must be taken across the major seam 
and must be prepared and tested in accordance with and must meet the 
requirements of CGA Pamphlet C-3. Should this specimen fail to meet the 
requirements, specimens may be taken from two additional cylinders or 
welded test plates from the same lot and tested. If either of the latter 
specimens fails to meet the requirements, the entire lot represented 
must be rejected.
    (2) Guided bend test. A ``root'' bend test specimen must be cut from 
the cylinder or welded test plate, used for the tensile test specified 
in paragraph (l)(1) of this section and from any other seam or 
equivalent welded test plate if the seam is welded by a procedure 
different from that used for the major seam. Specimens must be taken 
across the particular seam being tested and must be prepared and tested 
in accordance with and must meet the requirements of CGA Pamphlet C-3.
    (3) Alternate guided-bend test. This test may be used and must be as 
specified in CGA Pamphlet C-3. The specimen must be bent until the 
elongation at the outer surface, adjacent to the root of the weld, 
between the lightly scribed gage lines a to b, is at least 20 percent, 
except that this percentage may be reduced for steels having a tensile 
strength in excess of 100,000 pounds per square inch, as provided in 
paragraph (c) of this section.
    (4) Impact tests. One set of three impact test specimens (for each 
test) must be prepared and tested for determining the impact properties 
of the deposited weld metal--
    (i) As part of the qualification of the welding procedure.
    (ii) As part of the qualification of the operators.
    (iii) For each ``heat'' of welding rodor wire used.
    (iv) For each 1,000 feet of weld made with the same heat of welding 
rod or wire.
    (v) All impact test specimens must be of the Charpy type, keyhole or 
milled U-notch, and must conform in all respects to Figure 3 of ASTM E-
23-60. Each set of impact specimens must be taken across the weld and 
have the notch located in the weld metal. When the cylinder material 
thickness is 2.5 mm or thicker, impact specimens must

[[Page 778]]

be cut from a cylinder or welded test plate used for the tensile or bend 
test specimens. The dimension along the axis of the notch must be 
reduced to the largest possible of 10 mm, 7.5 mm, 5 mm or 2.5 mm, 
depending upon cylinder thickness. When the material in the cylinder or 
welded test plate is not of sufficient thickness to prepare 2.5 mm 
impact test specimens, 2.5 mm specimens must be prepared from a welded 
test plate made from \1/8\ inch thick material meeting the requirements 
specified in paragraph (o)(1), Table 1, of this section and having a 
carbon analysis of .05 minimum, but not necessarily from one of the 
heats used in the lot of cylinders. The test piece must be welded by the 
same welding procedure as used on the particular cylinder seam being 
qualified and must be subjected to the same heat treatment.
    (vi) Impact test specimens must be cooled to the design service 
temperature. The apparatus for testing the specimens must conform to the 
requirements of ASTM Standard E-23-60. The test piece, as well as the 
handling tongs, must be cooled for a length of time sufficient to reach 
the service temperature. The temperature of the cooling device must be 
maintained within a range of plus or minus 3 deg. F. The specimen must 
be quickly transferred from the cooling device to the anvil of the 
testing machine and broken within a time lapse of not more than six 
seconds.
    (vii) The impact properties of each set of impact specimens may not 
be less than the values in the following table:

                                                                        
------------------------------------------------------------------------
                                                     Minimum            
                                                      impact    Minimum 
                                                      value      impact 
                                                     required    value  
                                                     for avg.  permitted
                 Size of specimen                    of each     on one 
                                                      set of   only of a
                                                      three      set of 
                                                    specimens    three  
                                                    (ft.-lb.)  (ft.-lb.)
------------------------------------------------------------------------
10 mm x 10 mm.....................................       15         10  
10 mm x 7.5 mm....................................       12.5        8.5
10 mm x 5 mm......................................       10          7.0
10 mm x 2.5 mm....................................        5          3.5
------------------------------------------------------------------------

    (viii) When the average value of the three specimens equals or 
exceeds the minimum value permitted for a single specimen and the value 
for more than one specimen is below the required average value, or when 
the value for one specimen is below the minimum value permitted for a 
single specimen, a retest of three additional specimens must be made. 
The value of each of these retest specimens must equal or exceed the 
required average value. When an erratic result is caused by a defective 
specimen, or there is uncertainty in test procedure, a retest is 
authorized.
    (m) Radiographic examination. Cylinders must be subject to a 
radiographic examination as follows:
    (1) The techniques and acceptability of radiographic inspection must 
conform to the standards set forth in CGA Pamphlet C-3.
    (2) One finished longitudinal seam must be selected at random from 
each lot of 100 or less successively produced and be radiographed 
throughout its entire length. Should the radiographic examination fail 
to meet the requirements of paragraph (m)(1) of this section, two 
additional seams of the same lot must be examined, and if either of 
these fail to meet the requirements of (m)(1) of this section, only 
those passing are acceptable.
    (n) Rejected cylinders. Reheat treatment of rejected cylinders is 
authorized. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Welds may be repaired by suitable methods of fusion 
welding.
    (o) Authorized materials of construction. Authorized materials of 
construction are as follows:
    (1) Inner containment vessel (cylinder). Electric furnace steel of 
uniform quality must be used. Chemical analysis must conform to ASTM 
A240, Type 304 Stainless Steel. A heat of steel made under Table 1 and 
Table 2 in this paragraph (o)(1) is acceptable, even though its check 
chemical analysis is slightly out of the specified range, if it is 
satisfactory in all other respects, provided the tolerances shown in 
Table 3 in this paragraph (o)(1) are not exceeded. The following 
chemical analyses and physical properties are authorized:

[[Page 779]]



                     Table 1.--Authorized Materials                     
------------------------------------------------------------------------
                                            Chemical analysis, limits in
               Designation                            percent           
------------------------------------------------------------------------
Carbon \1\...............................  0.08 max.                    
Manganese................................  2.00 max.                    
Phosphorus...............................  0.045 max.                   
Sulphur..................................  0.030 max.                   
Silicon..................................  1.00 max.                    
Nickel...................................  8.00-10.50.                  
Chromium.................................  18.00-20.00.                 
Molybdenum...............................  None.                        
Titanium.................................  None.                        
Columbium................................  None.                        
------------------------------------------------------------------------
\1\ The carbon analysis must be reported to the nearest hundredth of one
  percent.                                                              


                      Table 2.--Physical Properties                     
------------------------------------------------------------------------
                                                               Physical 
                                                              properties
                                                              (annealed)
------------------------------------------------------------------------
Tensile strength, p.s.i. (minimum)..........................    75,000  
Yield strength, p.s.i. (minimum)............................    30,000  
Elongation in 2 inches (minimum) percent....................        30.0
Elongation other permissible gauge lengths (minimum) percent        15.0
------------------------------------------------------------------------


                                       Table 3.--Check Analysis Tolerances                                      
----------------------------------------------------------------------------------------------------------------
                                                                                                      Tolerance 
                                                                                                      over the  
                                                                                                       maximum  
               Elements                             Limit or specified range (percent)                limit or  
                                                                                                      under the 
                                                                                                       minimum  
                                                                                                        limit   
----------------------------------------------------------------------------------------------------------------
Carbon...............................  To 0.030, incl.............................................         0.005
                                       Over 0.30 to 0.20, incl....................................         0.01 
Manganese............................  To 1.00 incl...............................................          .03 
                                       Over 1.00 to 3.00, incl....................................         0.04 
Phosphorus \1\.......................  To 0.040, incl.............................................         0.005
                                       Over 0.040 to 0.020 incl...................................         0.010
Sulphur..............................  To .40 incl................................................         0.005
Silicon..............................  To 1.00, incl..............................................         0.05 
Nickel...............................  Over 5.00 to 10.00, incl...................................         0.10 
                                       Over 10.00 to 20.00, incl..................................         0.15 
Chromium.............................  Over 15.00 to 20.00, incl..................................         0.20 
----------------------------------------------------------------------------------------------------------------
\1\ Rephosphorized steels not subject to check analysis for phosphorus.                                         

    (2) Outer jacket. (i) Nonflammable cryogenic liquids. Cylinders 
intended for use in the transportation of nonflammable cryogenic liquid 
must have an outer jacket made of steel or aluminum.
    (ii) Flammable cryogenic liquids. Cylinders intended for use in the 
transportation of flammable cryogenic liquid must have an outer jacket 
made of steel.
    (p) Markings. (1) Markings must be stamped plainly and permanently 
on shoulder or top head of jacket or on a permanently attached plate or 
head protective ring.
    (2) The letters ``ST'', followed by the design service temperature 
(for example, ST-423F), must be marked on cylinders having a design 
service temperature of colder than minus 320 deg. F only. Location to be 
just below the DOT mark.
    (3) The maximum weight of contents, in pounds (for example, ``Max. 
Content 51 #''), must be marked on cylinders having a design service 
temperature colder than minus 320 deg. F only. Location to be near 
symbol.
    (4) Special orientation instructions must be marked on the cylinder 
(for example, THIS END UP), if the cylinder is used in an orientation 
other than vertical with openings at the top of the cylinder.
    (5) If the jacket of the cylinder is constructed of aluminum, the 
letters ``AL'' must be marked after the service pressure marking. 
Example: DOT-4L150 AL.
    (6) Except for serial number and jacket material designation, each 
marking prescribed in this paragraph (p) must be duplicated on each 
cylinder by any suitable means.
    (q) Inspector's report. In addition to the information required by 
Sec. 178.35, the inspector's reports must contain information on:
    (1) The jacket material and insulation type;
    (2) The design service temperature

[[Page 780]]


( deg.F); and
    (3) The impact test results, on a lot basis.



Sec. 178.58  Specification 4DA welded steel cylinders for aircraft use.

    (a) Type, size, and service pressure. A DOT 4DA is a welded steel 
sphere (two seamless hemispheres) or a circumferentially welded cylinder 
(two seamless drawn shells) with a water capacity not over 100 pounds 
and a service pressure of at least 500 but not over 900 pounds per 
square inch.
    (b) Steel. Open-hearth or electric steel of uniform quality must be 
used. A heat of steel made under Table 1 in this paragraph (b), check 
chemical analysis of which is slightly out of the specified range, is 
acceptable, if satisfactory in all other respects, provided the 
tolerances shown in Table 2 in this paragraph (b) are not exceeded 
except as approved by the Associate Administrator. The following 
chemical analyses are authorized:

                     Table 1.--Authorized Materials                     
------------------------------------------------------------------------
                      4130                               Percent        
------------------------------------------------------------------------
Carbon.........................................  0.28/0.33.             
Manganese......................................  0.40/0.60.             
Phosphorus.....................................  0.040 max.             
Sulfur.........................................  0.040 max.             
Silicon........................................  0.15/0.35.             
Chromium.......................................  0.80/1.10.             
Molybdenum.....................................  0.15/0.25.             
------------------------------------------------------------------------


                                       Table 2.--Check Analysis Tolerances                                      
----------------------------------------------------------------------------------------------------------------
                                                                                        Tolerance (percent) over
                                                                                          the maximum limit or  
                                                                                         under the minimum limit
            Element                       Limit or maximum specified (percent)         -------------------------
                                                                                           Under         Over   
                                                                                          minimum      maximum  
                                                                                           limit        limit   
----------------------------------------------------------------------------------------------------------------
Carbon.........................  Over 0.15 to 0.40 incl...............................          .03          .04
Manganese......................  To 0.60 incl.........................................          .03          .03
Phosphorus\1\..................  All ranges...........................................  ...........          .01
Sulphur........................  All ranges...........................................  ...........          .01
Silicon........................  To 0.30 incl.........................................          .02          .03
                                 Over 0.30 to 1.00 incl...............................          .05          .05
Chromium.......................  To 0.90 incl.........................................          .03          .03
                                 Over 0.90 to 2.10 incl...............................          .05          .05
Molybdenum.....................  To 0.20 incl.........................................          .01          .01
                                 Over 0.20 to 0.40, incl..............................          .02          .02
----------------------------------------------------------------------------------------------------------------
\1\ Rephosphorized steels not subject to check analysis for phosphorus.                                         

    (c) Identification of material. Materials must be identified by any 
suitable method except that plates and billets for hot-drawn containers 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured in accordance with 
the following requirements:
    (1) By best appliances and methods. No defect is acceptable that is 
likely to weaken the finished container appreciably. A reasonably smooth 
and uniform surface finish is required. No abrupt change in wall 
thickness is permitted. Welding procedures and operators must be 
qualified in accordance with CGA Pamphlet C-3.
    (2) All seams of the sphere or cylinders must be fusion welded. 
Seams must be of the butt or joggle butt type and means must be provided 
for accomplishing complete penetration of the joint.
    (e) Welding. Attachments to the container are authorized by fusion 
welding provided that such attachments are made of weldable steel, the 
carbon content of which may not exceed 0.25 percent except in the case 
of 4130 steel.
    (f) Wall thickness. The minimum wall thickness must be such that the 
wall stress at the minimum specified test pressure may not exceed 67 
percent of the minimum tensile strength of the

[[Page 781]]

steel as determined from the physical and burst tests required and may 
not be over 70,000 p.s.i. For any diameter container, the minimum wall 
thickness is 0.040 inch. Calculations must be made by the formulas in 
(f)(1) or (f)(2) of this section:
    (1) Calculation for a sphere must be made by the following formula:

S=PD/4tE
Where:

S=wall stress in pounds per square inch;
P=test pressure prescribed for water jacket test, i.e., at least 2 times 
service pressure, in pounds per square inch;
D=outside diameter in inches;
t=minimum wall thickness in inches;
E=0.85 (provides 85 percent weld efficiency factor which must be applied 
in the girth weld area and heat affected zones which zone must extend a 
distance of 6 times wall thickness from center line of weld);
E=1.0 (for all other areas).

    (2) Calculation for a cylinder must be made by the following 
formula:

S=[P(1.3D 2+0.4d 2)]/(D 2-d 
2)
Where:

S=wall stress in pounds per square inch;
P=test pressure prescribed for water jacket test, i.e., at least 2 times 
service pressure, in pounds per square inch;
D=outside diameter in inches;
d=inside diameter in inches.

    (g) Heat treatment. The completed containers must be uniformly and 
properly heat-treated prior to tests. Heat-treatment of containers of 
the authorized analysis must be as follows:
    (1) All containers must be quenched by oil, or other suitable medium 
except as provided in paragraph (g)(4) of this section.
    (2) The steel temperature on quenching must be that recommended for 
the steel analysis, but may not exceed 1,750 deg. F.
    (3) The steel must be tempered at the temperature most suitable for 
the analysis except that in no case shall the tempering temperature be 
less than 1,000 deg. F.
    (4) The steel may be normalized at a temperature of 1,650 deg. F 
instead of being quenched, and containers so normalized need not be 
tempered.
    (5) All cylinders, if water quenched or quenched with a liquid 
producing a cooling rate in excess of 80 percent of the cooling rate of 
water, must be inspected by the magnetic particle or dye penetrant 
method to detect the presence of quenching cracks. Any cylinder found to 
have a quench crack must be rejected and may not be requalified.
    (h) Openings in container. Openings in the container must comply 
with the following requirements:
    (1) Each opening in the container must be provided with a fitting, 
boss, or pad of weldable steel securely attached to the container by 
fusion welding.
    (2) Attachments to a fitting, boss, or pad must be adequate to 
prevent leakage. Threads must comply with the following:
    (i) Threads must be clean cut, even, without checks, and tapped to 
gauge.
    (ii) Taper threads to be of length not less than as specified for 
American Standard taper pipe threads.
    (iii) Straight threads, having at least 4 engaged threads, to have 
tight fit and calculated shear strength at least 10 times the test 
pressure of the container; gaskets required, adequate to prevent 
leakage.
    (i) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to accuracy either of 1 percent or 0.1 cubic 
centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent or 100 pounds per square 
inch, whichever is the lower.

[[Page 782]]

    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) Each container must be tested to at least 2 times service 
pressure.
    (j) Burst test. One container taken at random out of 200 or less 
must be hydrostatically tested to destruction. The rupture pressure must 
be included as part of the inspector's report.
    (k) Flattening test. Spheres and cylinders must be subjected to a 
flattening test as follows:
    (1) Flattening test for spheres. One sphere taken at random out of 
each lot of 200 or less must be subjected to a flattening test as 
follows:
    (i) The test must be performed after the hydrostatic test.
    (ii) The test must be at the weld between the parallel steel plates 
on a press with a welded seam, at right angles to the plates. Any 
projecting appurtenances may be cut off (by mechanical means only) prior 
to crushing.
    (2) Flattening test for cylinders. One cylinder taken at random out 
of each lot of 200 or less, must be subjected to a flattening test as 
follows:
    (i) The test must be performed after the hydrostatic test.
    (ii) The test must between knife edges, wedge shaped, 60 deg. angle, 
rounded to \1/2\ inch radius; test
    (l) Radiographic inspection. Radiographic examinations is required 
on all welded joints which are subjected to internal pressure, except 
that at the discretion of the disinterested inspector, openings less 
than 25 percent of the sphere diameter need not be subjected to 
radiographic inspection. Evidence of any defects likely to seriously 
weaken the container must be cause for rejection.
    (m) Physical test and specimens for spheres and cylinders. Spheres 
and cylinders must be subjected to a physical test as follows:
    (1) A physical test for a sphere is required on 2 specimens cut from 
a flat representative sample plate of the same heat taken at random from 
the steel used to produce the sphere. This flat steel from which the 2 
specimens are to be cut must receive the same heat-treatment as the 
spheres themselves. Sample plates to be taken for each lot of 200 or 
less spheres.
    (2) Specimens for spheres have a gauge length of 2 inches with a 
width not over 1\1/2\ inches, or a gauge length at least 24 times 
thickness with a width not over 6 times thickness is authorized when 
wall of sphere is not over \3/16\ inch thick.
    (3) A physical test for cylinders is required on 2 specimens cut 
from 1 cylinder taken at random out of each lot of 200 or less.
    (4) Specimens for cylinder must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
a gauge length of 2 inches with a width not over 1\1/2\ inches, a gauge 
length at least 24 times thickness with a width not over 6 times 
thickness is authorized when a cylinder wall is not over \3/16\ inch 
thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within 1 inch of each end of the reduced 
section.
    (iii) Heating of a specimen for any purpose is not authorized.
    (5) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
percent offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch and the strain indicator reading being set at the calculated 
corresponding strain.

[[Page 783]]

    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (n) Acceptable results for physical, flattening, and burst tests. 
The following are acceptable results of the physical, flattening and 
burst test:
    (1) Elongation must be at least 20 percent for a 2-inch gauge length 
or 10 percent in other cases.
    (2) Flattening is required to 50 percent of the original outside 
diameter without cracking.
    (3) Burst pressure must be at least 3 times service pressure.
    (o) Rejected containers. Reheat-treatment of rejected cylinders is 
authorized. Subsequent thereto, containers must pass all prescribed 
tests to be acceptable. Repair of welded seams by welding prior to 
reheat-treatment is authorized.
    (p) Marking. Markings on each container must be stamped plainly and 
permanently on a permanent attachment or on a metal nameplate 
permanently secured to the container by means other than soft solder.



Sec. 178.59  Specification 8 steel cylinders with porous fillings for acetylene.

    (a) Type and service pressure. A DOT 8 cylinder is a seamless 
cylinder with a service pressure of 250 pounds per square inch. The 
following steel is authorized:
    (1) A longitudinal seam if forge lap welded;
    (2) Attachment of heads by welding or by brazing by dipping process; 
or
    (3) A welded circumferential body seam if the cylinder has no 
longitudinal seam.
    (b) Steel. Open-hearth, electric or basic oxygen process steel of 
uniform quality must be used. Content percent may not exceed the 
following: Carbon, 0.25; phosphorus, 0.045; sulphur, 0.050.
    (c) Identification of steel. Materials must be identified by any 
suitable method except that plates and billets for hot-drawn cylinders 
must be marked with the heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is acceptable that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. Welding procedures and operators 
must be qualified in accordance with CGA Pamphlet C-3.
    (e) Exposed bottom welds. Exposed bottom welds on cylinders over 18 
inches long must be protected by footrings.
    (f) Heat treatment. Body and heads formed by drawing or pressing 
must be uniformly and properly heat treated prior to tests.
    (g) Openings. Openings in the cylinders must comply with the 
following:
    (1) Standard taper pipe threads are required;
    (2) Length may not be less than as specified for American Standard 
pipe threads; tapped to gauge; clean cut, even, and without checks.
    (h) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) One cylinder out of each lot of 200 or less must be 
hydrostatically tested to at least 750 pounds per square inch. Cylinders 
not so tested must be examined under pressure of between 500 and 600 
pounds per square inch and show no defect. If hydrostatically tested 
cylinder fails, each cylinder in the lot may be hydrostatically tested 
and those passing are acceptable.
    (i) Leakage test. Cylinders with bottoms closed in by spinning must 
be subjected to a leakage test by setting the interior air or gas 
pressure to not less than the service pressure. Cylinders which leak 
must be rejected.

[[Page 784]]

    (j) Physical test. A physical test must be conducted as follows:
    (1) The test is required on 2 specimens cut longitudinally from 1 
cylinder or part thereof taken at random out of each lot of 200 or less, 
after heat treatment.
    (2) Specimens must conform to a gauge length of 8 inches with a 
width not over 1\1/2\ inches, a gauge length of 2 inches with width not 
over 1\1/2\, or a gauge length at least 24 times thickness with a width 
not over 6 times thickness is authorized when a cylinder wall is not 
over \3/16\ inch thick.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch and the strain indicator reading being set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per-minute during yield strength determination.
    (4) Yield strength may not exceed 73 percent of tensile strength. 
Elongation must be at least 40 percent in 2 inch or 20 percent in other 
cases.
    (k) Rejected cylinders. Reheat treatment of rejected cylinder is 
authorized. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding is authorized.
    (l) Porous filling. (1) Cylinders must be filled with a porous 
material in accordance with the following:
    (i) The porous material may not disintegrate or sag when wet with 
solvent or when subjected to normal service;
    (ii) The porous filling material must be uniform in quality and free 
of voids, except that a well drilled into the filling material beneath 
the valve is authorized if the well is filled with a material of such 
type that the functions of the filling material are not impaired;
    (iii) Overall shrinkage of the filling material is authorized if the 
total clearance between the cylinder shell and filling material, after 
solvent has been added, does not exceed \1/2\ of 1 percent of the 
respective diameter or length, but not to exceed \1/8\ inch, measured 
diametrically and longitudinally;
    (iv) The clearance may not impair the functions of the filling 
material;
    (v) The installed filling material must meet the requirements of CGA 
Pamphlet C-12; and
    (vi) Porosity of filling material may not exceed 80 percent except 
that filling material with a porosity of up to 92 percent may be used 
when tested with satisfactory results in accordance with CGA Pamphlet C-
12.
    (2) When the porosity of each cylinder is not known, a cylinder 
taken at random from a lot of 200 or less must be tested for porosity. 
If the test cylinder fails, each cylinder in the lot may be tested 
individually and those cylinders that pass the test are acceptable.
    (3) For filling that is molded and dried before insertion in 
cylinders, porosity test may be made on a sample block taken at random 
from material to be used.
    (4) The porosity of the filling material must be determined. The 
amount of solvent at 70 deg. F for a cylinder:
    (i) Having shell volumetric capacity above 20 pounds water capacity 
(nominal) may not exceed the following:

                                                                        
------------------------------------------------------------------------
                                                               Maximum  
                                                               acetone  
                                                               solvent  
                 Percent porosity of filler                    percent  
                                                                shell   
                                                             capacity by
                                                                volume  
------------------------------------------------------------------------
90 to 92...................................................         43.4
87 to 90...................................................         42.0

[[Page 785]]

                                                                        
83 to 87...................................................         40.0
80 to 83...................................................         38.6
75 to 80...................................................         36.2
70 to 75...................................................         33.8
65 to 70...................................................         31.4
------------------------------------------------------------------------

    (ii) Having volumetric capacity of 20 pounds or less water capacity 
(nominal), may not exceed the following:

                                                                        
------------------------------------------------------------------------
                                                               Maximum  
                                                               acetone  
                                                               solvent  
                 Percent porosity of filler                    percent  
                                                                shell   
                                                             capacity by
                                                                volume  
------------------------------------------------------------------------
90 to 92...................................................         41.8
83 to 90...................................................         38.5
80 to 83...................................................         37.1
75 to 80...................................................         34.8
70 to 75...................................................         32.5
65 to 70...................................................         30.2
------------------------------------------------------------------------

    (m) Tare weight. The tare weight is the combined weight of the 
cylinder proper, porous filling, valve, and solvent, without removable 
cap.
    (n) Duties of inspector. In addition to the requirements of 
Sec. 178.35, the inspector is required to--
    (1) Certify chemical analyses of steel used, signed by manufacturer 
thereof; also verify by, check analyses of samples taken from each heat 
or from 1 out of each lot of 200 or less, plates, shells, or tubes used.
    (2) Verify compliance of cylinder shells with all shell 
requirements; inspect inside before closing in both ends; verify heat 
treatment as proper; obtain all samples for all tests and for check 
analyses; witness all tests; verify threads by gauge; report volumetric 
capacity and minimum thickness of wall noted.
    (3) Prepare report on manufacture of steel shells in form prescribed 
in Sec. 178.35. Furnish one copy to manufacturer and three copies to the 
company that is to complete the cylinders.
    (4) Determine porosity of filling and tare weights; verify 
compliance of marking with prescribed requirements; obtain necessary 
copies of steel shell reports; and furnish complete reports required by 
this specification to the person who has completed the manufacture of 
the cylinders and, upon request, to the purchaser. The test reports must 
be retained by the inspector for fifteen years from the original test 
date of the cylinder.
    (o) Marking. (1) Marking on each cylinder must be stamped plainly 
and permanently on or near the shoulder, top head, neck or valve 
protection collar which is permanently attached to the cylinder and 
forming integral part thereof.
    (2) Tare weight of cylinder, in pounds and ounces, must be marked on 
the cylinder.
    (3) Cylinders, not completed, when delivered must each be marked for 
identification of each lot of 200 or less.



Sec. 178.60  Specification 8AL steel cylinders with porous fillings for acetylene.

    (a) Type and service pressure. A DOT 8AL cylinder is a seamless 
steel cylinder with a service pressure of 250 pounds per square inch. 
However, the attachment of heads by welding or by brazing by dipping 
process and a welded circumferential body seam is authorized. 
Longitudinal seams are not authorized.
    (b) Authorized steel. The authorized steel is as specified in Table 
I of Appendix A to this part.
    (c) Identification of steel. Material must be identified by any 
suitable method except that plates and billets for hot-drawn cylinders 
must be marked with heat number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. Welding procedures and operators 
must be qualified in accordance with CGA Pamphlet C-3.
    (e) Footrings. Exposed bottom welds on cylinders over 18 inches long 
must be protected by footrings.
    (f) Welding or brazing. Welding or brazing for any purpose 
whatsoever is prohibited except as follows:
    (1) The attachment to the tops or bottoms of cylinders of neckrings, 
footrings, handlers, bosses, pads, and valve protecting rings is 
authorized

[[Page 786]]

provided that such attachments and the portion of the container to which 
they are attached are made of weldable steel, the carbon content of 
which may not exceed 0.25 percent.
    (2) Heat treatment is not required after welding or brazing weldable 
low carbon parts to attachments, specified in paragraph (f)(1) of this 
section, of similar material which have been previously welded or brazed 
to the top or bottom of cylinders and properly heat treated, provided 
such subsequent welding or brazing does not produce a temperature in 
excess of 400 deg. F in any part of the top or bottom material.
    (g) Wall thickness; wall stress. The wall thickness/wall stress of 
the cylinder must conform to the following:
    (1) The calculated wall stress at 750 pounds per square inch may not 
exceed 35,000 pounds per square inch, or one-half of the minimum 
ultimate strength of the steel as determined in paragraph (l) of this 
section, whichever value is the smaller. The measured wall thickness may 
not include galvanizing or other protective coating.
    (i) Calculation of wall stress must be made by the formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)
Where:

S=wall stress in pounds per square inch;
P=750 pounds per square inch (minimum test pressure);
D=outside diameter in inches;
d=inside diameter in inches.

    (ii) Either D or d must be calculated from the relation D = d + 2t, 
where t = minimum wall thickness.
    (2) Cylinders with a wall thickness less than 0.100 inch, the ratio 
of straight side wall length to outside diameter may not exceed 3.5.
    (3) For cylinders having outside diameter over 5 inches, the minimum 
wall thickness must be 0.087 inch.
    (h) Heat treatment. Each cylinder must be uniformly and properly 
heat treated, prior to tests, by any suitable method in excess of 
1100 deg. F. Heat treatment must be accomplished after all forming and 
welding operations, except that when brazed joints are used, heat 
treatment must follow any forming and welding operations but may be done 
before, during, or after the brazing operations. Liquid quenching is not 
authorized.
    (i) Openings. Standard taper pipe threads required in all openings. 
The length of the opening may not be less than as specified for American 
Standard pipe threads; tapped to gauge; clean cut, even, and without 
checks.
    (j) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit 
reading of total expansion to an accuracy of either 1 percent or 0.1 
cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat-treatment and previous to the official test may not 
exceed 90 percent of the test pressure.
    (3) Permanent volumetric expansion may not exceed 10 percent of 
total volumetric expansion at test pressure.
    (4) One cylinder out of each lot of 200 or less must be 
hydrostatically tested to at least 750 pounds per square inch. Cylinders 
not so tested must be examined under pressure of between 500 and 600 
pounds per square inch and show no defect. If a hydrostatically tested 
cylinder fails, each cylinder in the lot may be hydrostatically tested 
and those passing are acceptable.
    (k) Leakage test. Cylinders with bottoms closed in by spinning must 
be leakage tested by setting the interior air or gas pressure at not 
less than the service pressure. Any cylinder that leaks must be 
rejected.
    (l) Physical test. A physical test must be conducted as follows;
    (1) The test is required on 2 specimens cut longitudinally from 1 
cylinder or part thereof taken at random out of each lot of 200 or less, 
after heat treatment.
    (2) Specimens must conform to a gauge length of 8 inches with a 
width not over 1\1/2\ inches, a gauge length 2 inches with a width not 
over 1 \1/2\ inches, or a gauge length at least 24 times thickness with 
a width not over

[[Page 787]]

6 times thickness is authorized when a cylinder wall is not over \3/16\ 
inch thick.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``offset'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E 8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load'') corresponding to the stress at which the 
0.2 percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2 
offset.
    (iii) For the purpose of strain measurement, the initial strain must 
be set while the specimen is under a stress of 12,000 pounds per square 
inch, the strain indicator reading being set at the calculated 
corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (m) Elongation. Physical test specimens must show at least a 40 
percent elongation for a 2 inch gauge length or at least a 20 percent 
elongation in other cases. Except that these elongation percentages may 
be reduced numerically by 2 for 2 inch specimens and 1 in other cases 
for each 7,500 pounds per square inch increment of tensile strength 
above 50,000 pounds per square inch to a maximum of four such 
increments.
    (n) Weld tests. Specimens taken across the circumferentially welded 
seam must be cut from one cylinder taken at random from each lot of 200 
or less cylinders after heat treatment and must pass satisfactorily the 
following tests:
    (1) Tensile test. A specimen must be cut from one cylinder of each 
lot of 200 or less, or welded test plate. The specimen must be taken 
from across the major seam and must be prepared and tested in accordance 
with and must meet the requirements of CGA Pamphlet C-3. Should this 
specimen fail to meet the requirements, specimens may be taken from two 
additional cylinders or welded test plates from the same lot and tested. 
If either of the latter specimens fail to meet the requirements, the 
entire lot represented must be rejected.
    (2) Guided bend test. A root bend test specimen must be cut from the 
cylinder or welded test plate, used for the tensile test specified in 
paragraph (n)(1) of this section. Specimens must be prepared and tested 
in accordance with and must meet the requirements of CGA Pamphlet C-3.
    (3) Alternate guided-bend test. This test may be used and must be as 
required by CGA Pamphlet C-3. The specimen must be bent until the 
elongation at the outer surface, adjacent to the root of the weld, 
between the lightly scribed gage lines-a to b, must be at least 20 
percent, except that this percentage may be reduced for steels having a 
tensile strength in excess of 50,000 pounds per square inch, as provided 
in paragraph (m) of this section.
    (o) Rejected cylinders. Reheat treatment of rejected cylinders is 
authorized. Subsequent thereto, cylinders must pass all prescribed tests 
to be acceptable. Repair by welding is authorized.
    (p) Porous filling. (1) Cylinders must be filled with a porous 
material in accordance with the following:
    (i) The porous material may not disintegrate or sag when wet with 
solvent or when subjected to normal service;
    (ii) The filling material must be uniform in quality and free of 
voids, except that a well drilled into the filling material beneath the 
valve is authorized if the well is filled with a material of such type 
that the functions of the filling material are not impaired;
    (iii) Overall shrinkage of the filling material is authorized if the 
total clearance between the cylinder shell and filling material, after 
solvent has been added, does not exceed \1/2\ of 1 percent of the 
respective diameter or length but not to exceed \1/8\ inch, measured 
diametrically and longitudinally;

[[Page 788]]

    (iv) The clearance may not impair the functions of the filling 
material;
    (v) The installed filling material must meet the requirements of CGA 
Pamphlet C-12; and
    (vi) Porosity of filling material may not exceed 80 percent except 
that filling material with a porosity of up to 92 percent may be used 
when tested with satisfactory results in accordance with CGA Pamphlet C-
12.
    (2) When the porosity of each cylinder is not known, a cylinder 
taken at random from a lot of 200 or less must be tested for porosity. 
If the test cylinder fails, each cylinder in the lot may be tested 
individually and those cylinders that pass the test are acceptable.
    (3) For filling that is molded and dried before insertion in 
cylinders, porosity test may be made on sample block taken at random 
from material to be used.
    (4) The porosity of the filling material must be determined; the 
amount of solvent at 70 deg. F for a cylinder:
    (i) Having shell volumetric capacity above 20 pounds water capacity 
(nominal) may not exceed the following:

                                                                        
------------------------------------------------------------------------
                                                                 Maximum
                                                                 acetone
                                                                 solvent
                                                                 percent
                  Percent porosity of filler                      shell 
                                                                capacity
                                                                   by   
                                                                 volume 
------------------------------------------------------------------------
90 to 92......................................................      43.4
87 to 90......................................................      42.0
83 to 87......................................................      40.0
80 to 83......................................................      38.6
75 to 80......................................................      36.2
70 to 75......................................................      33.8
65 to 70......................................................      31.4
------------------------------------------------------------------------

    (ii) Having volumetric capacity of 20 pounds or less water capacity 
(nominal), may not exceed the following:

                                                                        
------------------------------------------------------------------------
                                                                 Maximum
                                                                 acetone
                                                                 solvent
                                                                 percent
                  Percent porosity of filler                      shell 
                                                                capacity
                                                                   by   
                                                                 volume 
------------------------------------------------------------------------
90 to 92......................................................      41.8
83 to 90......................................................      38.5
80 to 83......................................................      37.1
75 to 80......................................................      34.8
70 to 75......................................................      32.5
65 to 70......................................................      30.2
------------------------------------------------------------------------

    (q) Tare weight. The tare weight is the combined weight of the 
cylinder proper, porous filling, valve, and solvent, but without 
removable cap.
    (r) Duties of inspector. In addition to the requirements of 
Sec. 178.35, the inspector shall--
    (1) Certify chemical analyses of steel used, signed by manufacturer 
thereof; also verify by check analyses, of samples taken from each heat 
or from 1 out of each lot of 200 or less plates, shells, or tubes used.
    (2) Verify compliance of cylinder shells with all shell 
requirements, inspect inside before closing in both ends, verify heat 
treatment as proper; obtain all samples for all tests and for check 
analyses, witness all tests; verify threads by gauge, report volumetric 
capacity and minimum thickness of wall noted.
    (3) Report percentage of each specified alloying element in the 
steel. Prepare report on manufacture of steel shells in form prescribed 
in Sec. 178.35. Furnish one copy to manufacturer and three copies to the 
company that is to complete the cylinders.
    (4) Determine porosity of filling and tare weights; verify 
compliance of marking with prescribed requirements; obtain necessary 
copies of steel shell reports prescribed in paragraph (b) of this 
section; and furnish complete test reports required by this 
specification to the person who has completed the manufacturer of the 
cylinders and, upon request, to the purchaser. The test reports must be 
retained by the inspector for fifteen years from the original test date 
of the cylinder.
    (s) Marking. (1) Tare weight of cylinder, in pounds and ounces, must 
be marked on the cylinder.
    (2) Cylinders, not completed, when delivered must each be marked for 
identification of each lot of 200 or less.

[[Page 789]]

    (3) Markings must be stamped plainly and permanently in locations in 
accordance with the following:
    (i) On shoulders and top heads not less than 0.087 inch thick; or
    (ii) On neck, valve boss, valve protection sleeve, or similar part 
permanently attached to the top end of cylinder; or
    (iii) On a plate of ferrous material attached to the top of the 
cylinder or permanent part thereof; the plate must be at least \1/16\ 
inch thick, and must be attached by welding, or by brazing at a 
temperature of at least 1,100  deg.F throughout all edges of the plate. 
Sufficient space must be left on the plate to provide for stamping at 
least four (4) retest dates.



Sec. 178.61  Specification 4BW welded steel cylinders with electric-arc welded longitudinal seam.

    (a) Type, size and service pressure. A DOT 4BW cylinder is a welded 
type steel cylinder with a longitudinal electric-arc welded seam, a 
water capacity (nominal) not over 1,000 pounds and a service pressure at 
least 225 and not over 500 pounds per square inch gauge. Cylinders 
closed in by spinning process are not authorized.
    (b) Authorized steel. Steel used in the construction of the cylinder 
must conform to the following:
    (1) The body of the cylinder must be constructed of steel conforming 
to the limits specified in Table I of Appendix A to this part.
    (2) Material for heads must meet the requirements of paragraph (a) 
of this section or be open hearth, electric or basic oxygen carbon steel 
of uniform quality. Content percent may not exceed the following: Carbon 
0.25, Manganese 0.60, Phosphorus 0.045, Sulfur 0.050. Heads must be 
hemispherical or ellipsoidal in shape with a maximum ratio of 2.1. If 
low carbon steel is used, the thickness of such heads must be determined 
by using a maximum wall stress of 24,000 p.s.i. in the formula described 
in paragraph (f)(1) of this section.
    (c) Identification of material. Material must be identified by any 
suitable method.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart and the following:
    (1) No defect is permitted that is likely to weaken the finished 
cylinder appreciably. A reasonably smooth and uniform surface is 
required. Exposed bottom welds on cylinders over 18 inches long must be 
protected by footrings. Minimum thickness of heads may not be less than 
90 percent of the required thickness of the sidewall. Heads must be 
concave to pressure.
    (2) Circumferential seams must be by electric-arc welding. Joints 
must be butt with one member offset (joggle butt) or lap with minimum 
overlap of at least four times nominal sheet thickness.
    (3) Longitudinal seams in shells must conform to the following:
    (i) Longitudinal electric-arc welded seams must be of the butt 
welded type. Welds must be made by a machine process including automatic 
feed and welding guidance mechanisms. Longitudinal seams must have 
complete joint penetration, and must be free from undercuts, overlaps or 
abrupt ridges or valleys. Misalignment of mating butt edges may not 
exceed \1/6\ of nominal sheet thickness or \1/32\ inch whichever is 
less. All joints with nominal sheet thickness up to and including \1/8\ 
inch must be tightly butted. When nominal sheet thickness is greater 
than \1/8\ inch, the joint must be gapped with maximum distance equal to 
one-half the nominal sheet thickness or \1/32\ inch whichever is less. 
Joint design, preparation and fit-up must be such that requirements of 
this paragraph (d) are satisfied.
    (ii) Maximum joint efficiency must be 1.0 when each seam is 
radiographed completely. Maximum joint efficiency must be 0.90 when one 
cylinder from each lot of 50 consecutively welded cylinders is spot 
radiographed. In addition, one out of the first five cylinders welded 
following a shut down of welding operations exceeding four hours must be 
spot radiographed. Spot radiographs, when required, must be made of a 
finished welded cylinder and must include the girth weld for 2 inches in 
both directions from the intersection of the longitudinal and

[[Page 790]]

girth welds and include at least 6 inches of the longitudinal weld. 
Maximum joint efficacy of 0.75 must be permissible without radiography.
    (4) Welding procedures and operators must be qualified in accordance 
with CGA Pamphlet C-3.
    (e) Welding of attachments. The attachment to the tops and bottoms 
only of cylinders by welding of neckrings, footrings, handles, bosses, 
pads and valve protection rings is authorized provided that such 
attachments and the portion of the container to which they are attached 
are made of weldable steel, the carbon content of which may not exceed 
0.25 percent.
    (f) Wall thickness. For outside diameters over 6 inches the minimum 
wall thickness must be 0.078 inch. For a cylinder with a wall thickness 
less than 0.100 inch, the ratio of tangential length to outside diameter 
may not exceed 4 to1 (4:1). In any case the minimum wall thickness must 
be such that the wall stress calculated by the formula listed in 
paragraph (f)(4) of this section may not exceed the lesser value of any 
of the following:
    (1) The value referenced in paragraph (b) of this section for the 
particular material under consideration.
    (2) One-half of the minimum tensile strength of the material 
determined as required in paragraph (m) of this section.
    (3) 35,000 pounds per square inch.
    (4) Stress must be calculated by the following formula:

S=[2P(1.3D2+0.4d2)]/
[E(D2-d2)]

where:

S=wall stress, p.s.i.;
P=service pressure, p.s.i.;
D=outside diameter, inches;
d=inside diameter, inches;
E=joint efficiency of the longitudinal seam (from paragraph (d) of this 
section).

    (g) Heat treatment. Each cylinder must be uniformly and properly 
heat treated prior to test by the applicable method referenced in 
paragraph (b) of this section. Heat treatment must be accomplished after 
all forming and welding operations. Heat treatment is not required after 
welding or brazing of weldable low carbon parts to attachments of 
similar material which have been previously welded to the top or bottom 
of cylinders and properly heat treated, provided such subsequent welding 
or brazing does not produce a temperature in excess of 400 deg. F in any 
part of the top or bottom material.
    (h) Openings in cylinders. Openings in the cylinder must conform to 
the following:
    (1) All openings must be in the heads or bases.
    (2) Openings in cylinders must be provided with adequate fittings, 
bosses, or pads, integral with or securely attached to the cylinder by 
welding.
    (3) Threads must comply with the following:
    (i) Threads must be clean cut and to gauge.
    (ii) Taper threads must be of length not less than as specified for 
American Standard Taper Pipe threads.
    (iii) Straight threads, having at least 4 engaged threads, to have 
tight fit and calculated shear strength at least 10 times the test 
pressure of the cylinder; gaskets required, adequate to prevent leakage.
    (4) Closure of fittings, boss or pads must be adequate to prevent 
leakage.
    (i) Hydrostatic test. Cylinders must withstand a hydrostatic test, 
as follows:
    (1) The test must be by water-jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
readings to an accuracy of 1 percent. The expansion gauge must permit 
readings of total volumetric expansion to an accuracy either of 1 
percent or 0.1 cubic centimeter.
    (2) Pressure must be maintained for at least 30 seconds and 
sufficiently longer to ensure complete expansion. Any internal pressure 
applied after heat treatment and previous to the official test may not 
exceed 90 percent of the test pressure.
    (3) Permanent volumetric expansion may not exceed 10 percent of the 
total volumetric expansion at test pressure.
    (4) Cylinders must be tested as follows:
    (i) At least 1 cylinder selected at random out of each lot of 200 or 
less must be tested as outlined in paragraphs (i)(1), (i)(2), and (i)(3) 
of this section to at least two times service pressure.

[[Page 791]]

    (ii) All cylinders not tested as outlined in paragraph (i)(4)(i) of 
this section must be examined under pressure of at least two times 
service pressure and show no defect.
    (5) One finished cylinder selected at random out of each lot of 500 
or less successively produced must be hydrostatically tested to 4 times 
service pressure without bursting.
    (j) Physical tests. Cylinders must be subjected to a physical test 
as follows:
    (1) Specimens must be taken from one cylinder after heat treatment 
and chosen at random from each lot of 200 or less, as follows:
    (i) Body specimen. One specimen must be taken longitudinally from 
the body section at least 90 degrees away from the weld.
    (ii) Head specimen. One specimen must be taken from either head on a 
cylinder when both heads are made of the same material. However, if the 
two heads are made of differing materials, a specimen must be taken from 
each head.
    (iii) If due to welded attachments on the top head there is 
insufficient surface from which to take a specimen, it may be taken from 
a representative head of the same heat treatment as the test cylinder.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
a gauge length of 2 inches with a width not over 1\1/2\ inches, or a 
gauge length at least 24 times thickness with a width not over 6 times 
thickness is authorized when a cylinder wall is not over \3/16\ inch 
thick.
    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within 1 inch of each end of the reduced 
section.
    (iii) When size of the cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows 
when specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical tests detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by either the ``off-set'' 
method or the ``extension under load'' method as prescribed in ASTM 
Standard E8.
    (ii) In using the ``extension under load'' method, the total strain 
(or ``extension under load''), corresponding to the stress at which the 
0.2-percent permanent strain occurs may be determined with sufficient 
accuracy by calculating the elastic extension of the gauge length under 
appropriate load and adding thereto 0.2 percent of the gauge length. 
Elastic extension calculations must be based on an elastic modulus of 
30,000,000. In the event of controversy, the entire stress-strain 
diagram must be plotted and the yield strength determined from the 0.2-
percent offset.
    (iii) For the purpose of strain measurement, the initial strain 
reference must be set while the specimen is under a stress of 12,000 
pounds per square inch and the strain indicator reading being set at the 
calculated corresponding strain.
    (iv) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (k) Elongation. Physical test specimens must show at least a 40 
percent elongation for a 2-inch gauge length or at least a 20 percent 
elongation in other cases. Except that these elongation percentages may 
be reduced numerically by 2 for 2-inch specimens and by 1 in other cases 
for each 7,500 pounds per square inch increment of tensile strength 
above 50,000 pounds per square inch to a maximum of four increments.
    (l) Tests of welds. Welds must be subjected to the following tests:
    (1) Tensile test. A specimen must be cut from one cylinder of each 
lot of 200 or less. The specimen must be taken from across the 
longitudinal seam and must be prepared and tested in accordance with and 
must meet the requirements of CGA Pamphlet C-3.

[[Page 792]]

    (2) Guided bend test. A root test specimen must be cut from the 
cylinder used for the tensile test specified in paragraph (l)(1) of this 
section. Specimens must be taken from across the longitudinal seam and 
must be prepared and tested in accordance with and must meet the 
requirements of CGA Pamphlet C-3.
    (3) Alternate guided bend test. This test may be used and must be as 
required by CGA Pamphlet C-3. The specimen must be bent until the 
elongation at the outer surface, adjacent to the root of the weld, 
between the lightly scribed gauge lines a to b, must be at least 20 
percent, except that this percentage may be reduced for steels having a 
tensile strength in excess of 50,000 pounds per square inch, as provided 
in paragraph (k) of this section.
    (m) Radiographic examination. Welds of the cylinders must be 
subjected to a radiographic examination as follows:
    (1) Radiographic inspection must conform to the techniques and 
acceptability criteria set forth in CGA Pamphlet C-3. When fluoroscopic 
inspection is used, permanent film records need not be retained.
    (2) Should spot radiographic examination fail to meet the 
requirements of paragraph (m)(1) of this section, two additional welds 
from the same lot of 50 cylinders or less must be examined, and if 
either of these fail to meet the requirements, each cylinder must be 
examined as previously outlined; only those passing are acceptable.
    (n) Rejected cylinders. (1) Unless otherwise stated, if a sample 
cylinder or specimen taken from a lot of cylinders fails the prescribed 
test, then two additional specimens must be selected from the same lot 
and subjected to the prescribed test. If either of these fails the test, 
then the entire lot must be rejected.
    (2) Reheat treatment of rejected cylinders is authorized. Subsequent 
thereto, cylinders must pass all prescribed tests to be acceptable. 
Repair of welded seams by welding is authorized provided that all 
defective metal is cut away and the joint is rewelded as prescribed for 
original welded joints.
    (o) Markings. Markings must be stamped plainly and permanently in 
any of the following locations on the cylinder:
    (1) On shoulders and top heads when they are not less than 0.087-
inch thick.
    (2) On a metal plate attached to the top of the cylinder or 
permanent part thereof; sufficient space must be left on the plate to 
provide for stamping at least six retest dates; the plate must be at 
least \1/16\-inch thick and must be attached by welding, or by brazing. 
The brazing rod is to melt at a temperature of 1100 deg.F Welding or 
brazing must be along all the edges of the plate.
    (3) On the neck, valve boss, valve protection sleeve, or similar 
part permanently attached to the top of the cylinder.
    (4) On the footring permanently attached to the cylinder, provided 
the water capacity of the cylinder does not exceed 25 pounds.
    (p) Inspector's report. In addition to the information required by 
Sec. 178.35, the inspector's report must indicate the type and amount of 
radiography.



Sec. 178.65  Specification 39 non-reusable (non-refillable) cylinders.

    (a) Type, size, service pressure, and test pressure. A DOT 39 
cylinder is a seamless, welded, or brazed cylinder with a service 
pressure not to exceed 80 percent of the test pressure. Spherical 
pressure vessels are authorized and covered by references to cylinders 
in this specification.
    (1) Size limitation. Maximum water capacity may not exceed: (i) 55 
pounds (1,526 cubic inches) for a service pressure of 500 p.s.i.g. or 
less, and (ii) 10 pounds (277 cubic inches) for a service pressure in 
excess of 500 p.s.i.g.
    (2) Test pressure. The minimum test pressure is the maximum pressure 
of contents at 130 deg. F or 180 p.s.i.g. whichever is greater.
    (3) Pressure of contents. The term ``pressure of contents'' as used 
in this specification means the total pressure of all the materials to 
be shipped in the cylinder.
    (b) Material; steel or aluminum. The cylinder must be constructed of 
either steel or aluminum conforming to the following requirements:
    (1) Steel. (i) The steel analysis must conform to the following:

[[Page 793]]



                                                                        
------------------------------------------------------------------------
                                                        Ladle     Check 
                                                      analysis  analysis
------------------------------------------------------------------------
Carbon, maximum percent.............................      0.12      0.15
Phosphorus, maximum percent.........................       .04       .05
Sulfur, maximum percent.............................       .05       .06
------------------------------------------------------------------------

    (ii) For a cylinder made of seamless steel tubing with integrally 
formed ends, hot drawn, and finished, content percent for the following 
may not exceed: Carbon, 0.55; phosphorous, 0.045; sulfur, 0.050.
    (iii) For non-heat treated welded steel cylinders, adequately killed 
deep drawing quality steel is required.
    (iv) Longitudinal or helical welded cylinders are not authorized for 
service pressures in excess of 500 p.s.i.g.
    (2) Aluminum. Aluminum is not authorized for service pressures in 
excess of 500 p.s.i.g. The analysis of the aluminum must conform to the 
Aluminum Association standard for alloys 1060, 1100, 1170, 3003, 5052, 
5086, 5154, 6061, and 6063 as specified in its publication entitled 
``Aluminum Standards and Data''.
    (3) Material with seams, cracks, laminations, or other injurious 
defects not permitted.
    (4) Material used must be identified by any suitable method.
    (c) Manufacture. (1) General manufacturing requirements are as 
follows:
    (i) The surface finish must be uniform and reasonably smooth.
    (ii) Inside surfaces must be clean, dry, and free of loose 
particles.
    (iii) No defect of any kind is permitted if it is likely to weaken a 
finished cylinder.
    (2) Requirements for seams:
    (i) Brazing is not authorized on aluminum cylinders.
    (ii) Brazing material must have a melting point of not lower than 
1,000  deg.F.
    (iii) Brazed seams must be assembled with proper fit to ensure 
complete penetration of the brazing material throughout the brazed 
joint.
    (iv) Minimum width of brazed joints must be at least four times the 
thickness of the shell wall.
    (v) Brazed seams must have design strength equal to or greater than 
1.5 times the minimum strength of the shell wall.
    (vi) Welded seams must be properly aligned and welded by a method 
that provides clean, uniform joints with adequate penetration.
    (vii) Welded joints must have a strength equal to or greater than 
the minimum strength of the shell material in the finished cylinder.
    (3) Attachments to the cylinder are permitted by any means which 
will not be detrimental to the integrity of the cylinder. Welding or 
brazing of attachments to the cylinder must be completed prior to all 
pressure tests.
    (4) Welding procedures and operators must be qualified in accordance 
with CGA Pamphlet C-3.
    (d) Wall thickness. The minimum wall thickness must be such that the 
wall stress at test pressure does not exceed the yield strength of the 
material of the finished cylinder wall. Calculations must be made by the 
following formulas:
    (1) Calculation of the stress for cylinders must be made by the 
following formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)
Where:

S=Wall stress, in p.s.i.;
P=Test pressure;
D=Outside diameter, in inches;
d=Inside diameter, in inches.

    (2) Calculation of the stress for spheres must be made by the 
following formula:

S=PD/4t

Where:

S=Wall stress, in p.s.i.;
P=Test pressure;
D=Outside diameter, in inches;
t=Minimum wall thickness, in inches.

    (e) Openings and attachments. Openings and attachments must conform 
to the following:
    (1) Openings and attachments are permitted on heads only.
    (2) All openings and their reinforcements must be within an 
imaginary circle, concentric to the axis of the cylinder. The diameter 
of the circle may not exceed 80 percent of the outside diameter of the 
cylinder. The plane of the circle must be parallel to the plane of a 
circumferential weld and normal to the long axis of the cylinder.
    (3) Unless a head has adequate thickness, each opening must be 
reinforced by a securely attached fitting, boss, pad, collar, or other 
suitable means.

[[Page 794]]

    (4) Material used for welded openings and attachments must be of 
weldable quality and compatible with the material of the cylinder.
    (f) Pressure tests. (1) Each cylinder must be tested at an internal 
pressure of at least the test pressure and must be held at that pressure 
for at least 30 seconds.
    (i) The leakage test must be conducted by submersion under water or 
by some other method that will be equally sensitive.
    (ii) If the cylinder leaks, evidences visible distortion, or any 
other defect, while under test, it must be rejected (see paragraph (h) 
of this section).
    (2) One cylinder taken from the beginning of each lot, and one from 
each 1,000 or less successively produced within the lot thereafter, must 
be hydrostatically tested to destruction. The entire lot must be 
rejected (see paragraph (h) of this section) if:
    (i) A failure occurs at a gage pressure less than 2.0 times the test 
pressure;
    (ii) A failure initiates in a braze or a weld or the heat affected 
zone thereof;
    (iii) A failure is other than in the sidewall of a cylinder 
longitudinal with its long axis; or
    (iv) In a sphere, a failure occurs in any opening, reinforcement, or 
at a point of attachment.
    (3) A ``lot'' is defined as the quantity of cylinders successively 
produced per production shift (not exceeding 10 hours) having identical 
size, design, construction, material, heat treatment, finish, and 
quality.
    (g) Flattening test. One cylinder must be taken from the beginning 
of production of each lot (as defined in paragraph (f)(3) of this 
section) and subjected to a flattening test as follows:
    (1) The flattening test must be made on a cylinder that has been 
tested at test pressure.
    (2) A ring taken from a cylinder may be flattened as an alternative 
to a test on a complete cylinder. The test ring may not include the heat 
affected zone or any weld. However, for a sphere, the test ring may 
include the circumferential weld if it is located at a 45 degree angle 
to the ring, +/-5 degrees.
    (3) The flattening must be between 60 degrees included-angle, wedge 
shaped knife edges, rounded to a 0.5 inch radius.
    (4) Cylinders and test rings may not crack when flattened so that 
their outer surfaces are not more than six times wall thickness apart 
when made of steel or not more than ten times wall thickness apart when 
made of aluminum.
    (5) If any cylinder or ring cracks when subjected to the specified 
flattening test, the lot of cylinders represented by the test must be 
rejected (see paragraph (h) of this section).
    (h) Rejected cylinders. Rejected cylinders must conform to the 
following requirements:
    (1) If the cause for rejection of a lot is determinable, and if by 
test or inspection defective cylinders are eliminated from the lot, the 
remaining cylinders must be qualified as a new lot under paragraphs (f) 
and (g) of this section.
    (2) Repairs to welds are permitted. Following repair, a cylinder 
must pass the pressure test specified in paragraph (f) of this section.
    (3) If a cylinder made from seamless steel tubing fails the 
flattening test described in paragraph (g) of this section, suitable 
uniform heat treatment must be used on each cylinder in the lot. All 
prescribed tests must be performed subsequent to this heat treatment.
    (i) Markings. (1) The markings required by this section must be 
durable and waterproof. The requirements of Sec. 173.24(c)(1) (ii) and 
(iv) of this subchapter and Sec. 178.35(h) do not apply to this section.
    (2) Required markings are as follows:
    (i) DOT-39.
    (ii) NRC.
    (iii) The service pressure.
    (iv) The test pressure.
    (v) The registration number (M****) of the manufacturer.
    (vi) The lot number.
    (vii) The date of manufacture if the lot number does not establish 
the date of manufacture.
    (viii) With one of the following statements:
    (A) For cylinders manufactured prior to October 1, 1996: ``Federal 
law forbids transportation if refilled-penalty up to $25,000 fine and 5 
years imprisonment

[[Page 795]]

(49 U.S.C. 1809)'' or ``Federal law forbids transportation if refilled-
penalty up to $500,000 fine and 5 years imprisonment (49 U.S.C. 5124).''
    (B) For cylinders manufactured on or after October 1, 1996: 
``Federal law forbids transportation if refilled-penalty up to $500,000 
fine and 5 years imprisonment (49 U.S.C. 5124).''
    (3) The markings required by paragraphs (i)(2)(i) through (i)(2)(v) 
of this section must be in numbers and letters at least \1/8\ inch high 
and displayed sequentially. For example:

DOT-39 NRC 250/500 M1001.

    (4) No person may mark any cylinder with the specification 
identification ``DOT-39'' unless it was manufactured in compliance with 
the requirements of this section and its manufacturer has a registration 
number (M****) from the Associate Administrator.



Sec. 178.68  Specification 4E welded aluminum cylinders.

    (a) Type, size and service pressure. A DOT 4E cylinder is a welded 
aluminum cylinder with a water capacity (nominal) of not over 1,000 
pounds and a service pressure of at least 225 to not over 500 pounds per 
square inch. The cylinder must be constructed of not more than two 
seamless drawn shells with no more than one circumferential weld. The 
circumferential weld may not be closer to the point of tangency of the 
cylindrical portion with the shoulder than 20 times the cylinder wall 
thickness. Cylinders or shells closed in by spinning process and 
cylinders with longitudinal seams are not authorized.
    (b) Authorized material. The cylinder must be constructed of 
aluminum of uniform quality. The following chemical analyses are 
authorized:

                     Table 1.--Authorized Materials                     
------------------------------------------------------------------------
                                            Chemical analysis--limits in
               Designation                        percent 5154 \1\      
------------------------------------------------------------------------
Iron plus silicon........................  0.45 maximum.                
Copper...................................  0.10 maximum.                
Manganese................................  0.10 maximum.                
Magnesium................................  3.10/3.90.                   
Chromium.................................  0.15/0.35.                   
Zinc.....................................  0.20 maximum.                
Titanium.................................  0.20 maximum.                
Others, each.............................  0.05 maximum.                
Others, total............................  0.15 maximum.                
Aluminum.................................  remainder.                   
------------------------------------------------------------------------
\1\ Analysis must regularly be made only for the elements specifically  
  mentioned in this table. If, however, the presence of other elements  
  is indicated in the course of routine analysis, further analysis      
  should be made to determine conformance with the limits specified for 
  other elements.                                                       

    (c) Identification. Material must be identified by any suitable 
method that will identify the alloy and manufacturer's lot number.
    (d) Manufacture. Cylinders must be manufactured using equipment and 
processes adequate to ensure that each cylinder produced conforms to the 
requirements of this subpart. No defect is permitted that is likely to 
weaken the finished cylinder appreciably. A reasonably smooth and 
uniform surface finish is required. All welding must be by the gas 
shielded arc process.
    (e) Welding. The attachment to the tops and bottoms only of 
cylinders by welding of neckrings or flanges, footrings, handles, bosses 
and pads and valve protection rings is authorized. However, such 
attachments and the portion of the cylinder to which it is attached must 
be made of weldable aluminum alloys.
    (f) Wall thickness. The wall thickness of the cylinder must conform 
to the following:
    (1) The minimum wall thickness of the cylinder must be 0.140 inch. 
In any case, the minimum wall thickness must be such that calculated 
wall stress at twice service pressure may not exceed the lesser value of 
either of the following:
    (i) 20,000 pounds per square inch.
    (ii) One-half of the minimum tensile strength of the material as 
required in paragraph (j) of this section.
    (2) Calculation must be made by the following formula:

S=[P(1.3D2+0.4d2)]/(D2-d2)

Where:

S=wall stress in pounds per square inch;
P=minimum test pressure prescribed for water jacket test;
D=outside diameter in inches;
d=inside diameter in inches.


[[Page 796]]


    (3) Minimum thickness of heads and bottoms may not be less than the 
minimum required thickness of the side wall.
    (g) Opening in cylinder. Openings in cylinders must conform to the 
following:
    (1) All openings must be in the heads or bases.
    (2) Each opening in cylinders, except those for safety devices, must 
be provided with a fitting, boss, or pad, securely attached to cylinder 
by welding by inert gas shielded arc process or by threads. If threads 
are used, they must comply with the following:
    (i) Threads must be clean-cut, even, without checks and cut to 
gauge.
    (ii) Taper threads to be of length not less than as specified for 
American Standard taper pipe threads.
    (iii) Straight threads, having at least 4 engaged threads, to have 
tight fit and calculated shear strength at least 10 times the test 
pressure of the cylinder; gaskets required, adequate to prevent leakage.
    (3) Closure of a fitting, boss, or pad must be adequate to prevent 
leakage.
    (h) Hydrostatic test. Each cylinder must successfully withstand a 
hydrostatic test, as follows:
    (1) The test must be by water jacket, or other suitable method, 
operated so as to obtain accurate data. The pressure gauge must permit 
reading to an accuracy of 1 percent. The expansion gauge must permit a 
reading of the total expansion to an accuracy either of 1 percent or 0.1 
cubic centimeter.
    (2) Pressure of 2 times service pressure must be maintained for at 
least 30 seconds and sufficiently longer to insure complete expansion. 
Any internal pressure applied previous to the official test may not 
exceed 90 percent of the test pressure. If, due to failure of the test 
apparatus, the test pressure cannot be maintained, the test may be 
repeated at a pressure increased by 10 percent over the pressure 
otherwise specified.
    (3) Permanent volumetric expansion may not exceed 12 percent of 
total volumetric expansion at test pressure.
    (4) Cylinders having a calculated wall stress of 18,000 pounds per 
square inch or less at test pressure may be tested as follows:
    (i) At least one cylinder selected at random out of each lot of 200 
or less must be tested in accordance with paragraphs (h)(1), (h)(2), and 
(h)(3) of this section.
    (ii) All cylinders not tested as provided in paragraph (h)(4)(i) of 
this section must be examined under pressure of at least 2 times service 
pressure and show no defect.
    (5) One finished cylinder selected at random out of each lot of 
1,000 or less must be hydrostatically tested to 4 times the service 
pressure without bursting. Inability to meet this requirement must 
result in rejection of the lot.
    (i) Flattening test. After hydrostatic testing, a flattening test is 
required on one section of a cylinder, taken at random out of each lot 
of 200 or less as follows:
    (1) If the weld is not at midlength of the cylinder, the test 
section must be no less in width than 30 times the cylinder wall 
thickness. The weld must be in the center of the section. Weld 
reinforcement must be removed by machining or grinding so that the weld 
is flush with the exterior of the parent metal. There must be no 
evidence of cracking in the sample when it is flattened between flat 
plates to no more than 6 times the wall thickness.
    (2) If the weld is at midlength of the cylinder, the test may be 
made as specified in paragraph (i)(1)(i) of this section or must be made 
between wedge shaped knife edges (60 deg. angle) rounded to a \1/2\ inch 
radius. There must be no evidence of cracking in the sample when it is 
flattened to no more than 6 times the wall thickness.
    (j) Physical test. A physical test must be conducted to determine 
yield strength, tensile strength, elongation, and reduction of area of 
material as follows:
    (1) The test is required on 2 specimens cut from one cylinder or 
part thereof taken at random out of each lot of 200 or less.
    (2) Specimens must conform to the following:
    (i) A gauge length of 8 inches with a width not over 1\1/2\ inches, 
a gauge length of 2 inches with a width not over 1\1/2\ inches.

[[Page 797]]

    (ii) The specimen, exclusive of grip ends, may not be flattened. 
Grip ends may be flattened to within 1 inch of each end of the reduced 
section.
    (iii) When size of cylinder does not permit securing straight 
specimens, the specimens may be taken in any location or direction and 
may be straightened or flattened cold, by pressure only, not by blows; 
when specimens are so taken and prepared, the inspector's report must 
show in connection with record of physical test detailed information in 
regard to such specimens.
    (iv) Heating of a specimen for any purpose is not authorized.
    (3) The yield strength in tension must be the stress corresponding 
to a permanent strain of 0.2 percent of the gauge length. The following 
conditions apply:
    (i) The yield strength must be determined by the ``offset'' method 
as prescribed in ASTM Standard E8.
    (ii) Cross-head speed of the testing machine may not exceed \1/8\ 
inch per minute during yield strength determination.
    (k) Acceptable results for physical tests. An acceptable result of 
the physical test requires an elongation to at least 7 percent and yield 
strength not over 80 percent of tensile strength.
    (l) Weld tests. Welds of the cylinder are required to successfully 
pass the following tests:
    (1) Reduced section tensile test. A specimen must be cut from the 
cylinder used for the physical tests specified in paragraph (j) of this 
section. The specimen must be taken from across the seam, edges must be 
parallel for a distance of approximately 2 inches on either side of the 
weld. The specimen must be fractured in tension. The apparent breaking 
stress calculated on the minimum wall thickness must be at least equal 
to 2 times the stress calculated under paragraph (f)(2) of this section, 
and in addition must have an actual breaking stress of at least 30,000 
pounds per square inch. Should this specimen fail to meet the 
requirements, specimens may be taken from 2 additional cylinders from 
the same lot and tested. If either of the latter specimens fails to meet 
requirements, the entire lot represented must be rejected.
    (2) Guided bend test. A bend test specimen must be cut from the 
cylinder used for the physical tests specified in paragraph (j) of this 
section. Specimen must be taken across the seam, must be 1\1/2\ inches 
wide, edges must be parallel and rounded with a file, and back-up strip, 
if used, must be removed by machining. The specimen must be bent to 
refusal in the guided bend test jig illustrated in paragraph 6.10 of CGA 
Pamphlet C-3. The root of the weld (inside surface of the cylinder) must 
be located away from the ram of the jig. No specimen must show a crack 
or other open defect exceeding \1/8\ inch in any direction upon 
completion of the test. Should this specimen fail to meet the 
requirements, specimens may be taken from each of 2 additional cylinders 
from the same lot and tested. If either of the latter specimens fail to 
meet requirements, the entire lot represented must be rejected.
    (m) Rejected cylinders. Repair of welded seams is authorized. 
Acceptable cylinders must pass all prescribed tests.
    (n) Inspector's report. In addition to the information required by 
Sec. 178.35, the record of chemical analyses must also include 
applicable information on iron, titanium, zinc, and magnesium used in 
the construction of the cylinder.
[Amdt. 178-114, 61 FR 25942, May 23, 1996, as amended at 62 FR 51561, 
Oct. 1, 1997]



                        Subparts D-G--[Reserved]



              Subpart H--Specifications for Portable Tanks

    Source:  29 FR 18972, Dec. 29, 1964, unless otherwise noted. 
Redesignated at 32 FR 5606, Apr. 5, 1967.



Sec. 178.245  Specification 51; steel portable tanks.



Sec. 178.245-1  Requirements for design and construction.

    (a) Tanks must be seamless or welded steel construction or 
combination of both and have a water capacity in excess of 454 kg (1,000 
pounds). Tanks must be designed, constructed, certified and stamped in 
accordance with the ASME Code.
    (b) Tanks must be postweld heat treated and radiographed as 
prescribed

[[Page 798]]

in the ASME Code except that each tank constructed in accordance with 
part UHT of the ASME Code must be postweld heat treated. Where postweld 
heat treatment is required, the tank must be treated as a unit after 
completion of all the welds in and/or to the shell and heads. The method 
must be as prescribed in the ASME Code. Welded attachments to pads may 
be made after postweld heat treatment is made. A tank used for anhydrous 
ammonia must be postweld heat treated. The postweld heat treatment must 
be as prescribed in the ASME Code, but in no event at less than 
1050 deg. F tank metal temperature. Additionally, tanks constructed in 
accordance with part UHT of the ASME Code must conform to the following 
requirements:
    (1) Welding procedure and welder performance tests must be made 
annually in accordance with section IX of the ASME Code. In addition to 
the essential variables named therein, the following must be considered 
to be essential variables: number of passes, thickness of plate, heat 
input per pass, and manufacturer's identification of rod and flux. The 
number of passes, thickness of plate and heat input per pass may not 
vary more than 25 percent from the procedure qualification. Records of 
the qualification must be retained for at least 5 years by the tank 
manufacturer and made available to duly identified representatives of 
the Department of Transportation or the owner of the tank.
    (2) Impact tests must be made on a lot basis. A lot is defined as 
100 tons or less of the same heat and having a thickness variation no 
greater than plus or minus 25 percent. The minimum impact required for 
full-sized specimens shall be 20 foot-pounds (or 10 foot-pounds for 
half-sized specimens) at 0 deg. F Charpy V-Notch in both the 
longitudinal and transverse direction. If the lot test does not pass 
this requirement, individual plates may be accepted if they individually 
meet this impact requirement.
    (c) Except as provided in paragraph (d) of this section, all 
openings in the tank shall be grouped in one location, either at the top 
of the tank or at one end of the tank.
    (d) The following openings may be installed at locations other than 
on the top or end of the tank:
    (1) The openings for liquid level gauging devices, pressure gauges, 
or for safety devices, may be installed separately at the other location 
or in the side of the shell;
    (2) One plugged opening of 2-inch National Pipe Thread or less 
provided for maintenance purposes may be located elsewhere;
    (3) An opening of 3-inch National Pipe Size or less may be provided 
at another location, when necessary, to facilitate installation of 
condensing coils; or
    (4) Filling and discharge connections may be installed below the 
normal liquid level of the tank if the tank design conforms to the 
following requirements:
    (i) The tank must be permanently mounted in a full framework for 
containerized transport. For each tank design, a prototype tank, must 
fulfill the requirements of parts 450 through 453 of this title for 
compliance with the requirements of Annex II of the International 
Convention for Safe Containers.
    (ii) Each filling and discharge connection must be equipped with an 
internal self-closing stop-valve capable of closing within 30 seconds of 
actuation. Each internal self-closing stop-valve must be protected by a 
shear section or sacrificial device located outboard of the valve. The 
shear section or sacrificial device must break at no more than 70 
percent of the load that would cause failure of the internal self-
closing stop- valve.
    (iii) Each internal self-closing stop-valve must be provided with 
remote means of automatic closure, both thermal and mechanical. The 
thermal means of automatic closure must actuate at a temperature of not 
over 250 deg. F.
    (e) Each uninsulated tank used for the transportation of compressed 
gas, as defined in Sec. 173.300 of this subchapter, must have an 
exterior surface finish that is significantly reflective, such as a 
light reflecting color if painted, or a bright reflective metal or other 
material if unpainted.
[Amdt. 178-117, 61 FR 50627, Sept. 26, 1996]

[[Page 799]]



Sec. 178.245-2  Material.

    (a) All material used for the construction of the tank and 
appurtenances shall be suitable for use with the commodity to be 
transported therein.
    (b) A material of thickness less than \3/16\ inch shall not be used 
for the shells and heads.



Sec. 178.245-3  Design pressure.

    (a) The design pressure of a tank authorized under this 
specification shall be not less than the vapor pressure of the commodity 
contained therein at 115 deg. F., or as prescribed for a particular 
commodity by part 173 of this chapter, except that in no case shall the 
design pressure of any container be less than 100 psig or more than 500 
psig. When corrosion factor is prescribed by these regulations, the wall 
thickness of the tank calculated in accordance with the ``Code'' (see 
Sec. 178.245-1(a)) shall be increased by 20 percent or 0.10 inch, 
whichever is less.

    Note 1: The term design pressure as used in this specification is 
identical to the term maximum allowable working pressure as used in the 
``Code'' (see Sec. 178.245-1(a)).

    (b) [Reserved]



Sec. 178.245-4  Tank mountings.

    (a) Tanks shall be designed and fabricated with mountings to provide 
a secure base in transit. ``Skids'' or similar devices shall be deemed 
to comply with this requirement.
    (b) All tank mountings such as skids, fastenings, brackets, cradles, 
lifting lugs, etc., intended to carry loadings shall be permanently 
secured to tanks in accordance with the requirements of the Code under 
which the tanks were fabricated and shall be designed to withstand 
static loadings in any direction equal to twice the weight of the tank 
and attachments when filled with the lading using a safety factor of not 
less than four, based on the ultimate strength of the material to be 
used. The specific gravity used in determining the static loadings shall 
be shown on the marking required by Sec. 178.245-6(a) and on the report 
required by Sec. 178.245-7(a).
    (c) Lifting lugs or hold-down lugs may be added to either the tank 
or tank mountings. If lifting lugs and hold-down lugs are added directly 
to the tank, they shall be secured to doubling plates welded to the tank 
and located at points of support, except that lifting lugs or hold-down 
lugs with integral bases serving as doubling plates may be welded 
directly to the tank. Each lifting lug and hold-down lug shall be 
designed to withstand static loadings in any direction equal to twice 
the weight of the tank and attachments when filled with the lading using 
a safety factor of not less than four, based on the ultimate strength of 
the material to be used.
    (d) All tank mountings shall be designed so as to prevent the 
concentration of excessive loads on the tank shell.
    (e) A DOT 51 portable tank that meets the definition of 
``container'' in Sec. 450.3(a)(3) of this title must meet the 
requirements of parts 450 through 453 of this title, in addition to the 
requirements of this subchapter.
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
as amended by Amdt. 178-117, 61 FR 50628, Sept. 26, 1996]



Sec. 178.245-5  Protection of valves and accessories.

    (a) All valves, fittings, accessories, safety devices, gaging 
devices, and the like shall be adequately protected against mechanical 
damage.
    (b) The protective device or housing shall conform to the 
requirements under which the tanks are fabricated with respect to design 
and construction, and shall be designed to withstand static loadings in 
any direction equal to twice the weight of the tank and attachments when 
filled with the lading using a safety factor of not less than four, 
based on the ultimate strength of the material to be used.
    (c) Requirements concerning types of valves, retesting, and 
qualification of portable tanks contained in Secs. 173.32 and 173.315 of 
this chapter must be observed.
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
as amended by Amdt. 178-104, 59 FR 49135, Sept. 26, 1994]



Sec. 178.245-6  Name plate.

    (a) In addition to the markings required by the Code (see 
Sec. 178.245-1(a))

[[Page 800]]

under which tanks were constructed, they shall have permanently affixed, 
in close proximity to the ASME ``U'' stamp certification, a metal plate. 
This plate shall be permanently affixed by means of soldering, brazing, 
or welding around its complete perimeter. Neither the plate itself nor 
the means of attachment to the tank shall be subject to destructive 
attack by the contents of tank. Upon such plate shall be plainly marked 
by stamping, embossing, or other means of forming letters into or onto 
the metal plate itself the following information in characters at least 
\1/8\-inch high:

 Manufacturer's name____________________________________________________
 Serial No. ------ Owner's serial No.___________________________________
 D.O.T. Specification No._______________________________________________
 Water capacity (pounds)________________________________________________
 Tare weight (pounds)___________________________________________________
 Design pressure (psig)_________________________________________________
 Design specific gravity________________________________________________
 Original test date_____________________________________________________
 Tank retested at ------ (psig) on:_____________________________________

    (b) All tank outlets and inlets, except safety relief valves, shall 
be marked to designate whether they communicate with vapor or liquid 
when the tank is filled to the maximum permitted filling density.
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 178-67, 46 FR 49906, Oct. 8, 1981; Amdt. 178-117, 
61 FR 50628, Sept. 26, 1996]



Sec. 178.245-7  Report.

    (a) A copy of the manufacturer's data report required by the Code 
(See Sec. 178.245-1(a)) under which the tank is fabricated shall be 
furnished to the owner for each new tank.
    (b) [Reserved]
[Amdt. 178-76, 48 FR 28102, June 20, 1983]



Secs. 178.251--178.253-5  [Reserved]



Sec. 178.255  Specification 60; steel portable tanks.



Sec. 178.255-1  General requirements.

    (a) Tanks must be of fusion welded construction, cylindrical in 
shape with seamless heads concave to the pressure. Tank shells may be of 
seamless construction.
    (b) Tanks must be designed and constructed in accordance with and 
fulfill all the requirements of the ASME Code.
    (c) Tanks including all permanent attachments must be postweld heat 
treated as a unit.
    (d) Requirements concerning types of valves, retesting, and 
qualification of portable tanks contained in Secs. 173.32 and 173.315 of 
this chapter must be observed.
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 178-7, 34 FR 18250, Nov. 14, 1969]



Sec. 178.255-2  Material.

    (a) Material used in the tank must be steel of good weldable quality 
and conform with the requirements of the ASME Code.
    (b) The minimum thickness of metal, exclusive of lining material, 
for shell and heads of tanks shall be as follows:

                                                                        
------------------------------------------------------------------------
                                                                Minimum 
                        Tank capacity                          thickness
                                                                (inch)  
------------------------------------------------------------------------
Not more than 1,200 gallons.................................       \1/4\
Over 1,200 to 1,800 gallons.................................      \5/16\
Over 1,800 gallons..........................................       \3/8\
------------------------------------------------------------------------

[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 178-7, 34 FR 18250, Nov. 14, 1969]



Sec. 178.255-3  Expansion domes.

    (a) Expansion domes, if applied, must have a minimum capacity of one 
percent of the combined capacity of the tank and dome.
    (b) [Reserved]



Sec. 178.255-4  Closures for manholes and domes.

    (a) The manhole cover shall be designed to provide a secure closure 
of the manhole. All covers, not hinged to the tanks, shall be attached 
to the outside of the dome by at least \1/8\ inch chain or its 
equivalent. Closures shall be made tight against leakage of vapor and 
liquid by use of gaskets of suitable material.
    (b) [Reserved]



Sec. 178.255-5  Bottom discharge outlets.

    (a) Bottom discharge outlets prohibited, except on tanks used for 
shipments of sludge acid and alkaline corrosive liquids.

[[Page 801]]

    (b) If installed, bottom outlets or bottom washout chambers shall be 
of metal not subject to rapid deterioration by the lading, and each 
shall be provided with a valve or plug at its upper end and liquid-tight 
closure at it lower end. Each valve or plug shall be designed to insure 
against unseating due to stresses or shocks incident to transportation. 
Bottom outlets shall be adequately protected against handling damage and 
outlet equipment must not extend to within less than one inch of the 
bottom bearing surface of the skids or tank mounting.
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
as amended by Amdt. 178-104, 59 FR 49135, Sept. 26, 1994]



Sec. 178.255-6  Loading and unloading accessories.

    (a) When installed, gauging, loading and air inlet devices, 
including their valves, shall be provided with adequate means for their 
secure closure; and means shall also be provided for the closing of pipe 
connections of valves.
    (b) Interior heater coils, if installed, must be of extra heavy pipe 
and so constructed that breaking off of exterior connections will not 
cause leakage of tanks.



Sec. 178.255-7  Protection of valves and accessories.

    (a) All valves, fittings, accessories, safety devices, gauging 
devices, and the like shall be adequately protected against mechanical 
damage by a housing closed with a cover plate.
    (b) Protective housing shall comply with the requirements under 
which the tanks are fabricated with respect to design and construction, 
and shall be designed with a minimum factor of safety of four to 
withstand loadings in any direction equal to two times the weight of the 
tank and attachments when filled with water.



Sec. 178.255-8  Safety devices.

    (a) See Sec. 173.315(i) of this subchapter.
    (b) [Reserved]
[Amdt. 178-83, 50 FR 11066, Mar. 19, 1985]



Sec. 178.255-9  Compartments.

    (a) When the interior of the tank is divided into compartments, each 
compartment shall be designed, constructed and tested as a separate 
tank. Thickness of shell and compartment heads shall be determined on 
the basis of total tank capacity.
    (b) [Reserved]



Sec. 178.255-10  Lining.

    (a) If a lining is required, the material used for lining the tank 
shall be homogeneous, nonporous, imperforate when applied, not less 
elastic than the metal of the tank proper. It shall be of substantially 
uniform thickness, not less than \1/32\ inch thick if metallic, and not 
less than \1/16\ inch thick if nonmetallic, and shall be directly bonded 
or attached by other equally satisfactory means. Rubber lining shall be 
not less than \3/16\ inch thick. Joints and seams in the lining shall be 
made by fusing the material together or by other equally satisfactory 
means. The interior of the tank shall be free from scale, oxidation, 
moisture and all foreign matter during the lining operation.
    (b) [Reserved]



Sec. 178.255-11  Tank mountings.

    (a) Tanks shall be designed and fabricated with mountings to provide 
a secure base in transit. ``Skids'' or similar devices shall be deemed 
to comply with this requirement.
    (b) All tank mountings such as skids, fastenings, brackets, cradles, 
lifting lugs, etc., intended to carry loadings shall be permanently 
secured to tanks in accordance with the requirements under which the 
tanks are fabricated, and shall be designed with a factor of safety of 
four, and built to withstand loadings in any direction equal to two 
times the weight of the tanks and attachments when filled to the maximum 
permissible loaded weight.
    (c) Lifting lugs or side hold-down lugs shall be provided on the 
tank mountings in a manner suitable for attaching lifting gear and hold-
down devices. Lifting lugs and hold-down lugs welded directly to the 
tank shall be of the pad-eye type. Doubling plates welded to the tank 
and located at the points of support shall be deemed to comply with this 
requirement.

[[Page 802]]

    (d) All tank mountings shall be so designed as to prevent the 
concentration of excessive loads on the tank shell.



Sec. 178.255-12  Pressure test.

    (a) Each completed portable tank prior to application of lining 
shall be tested before being put into transportation service by 
completely filling the tank with water or other liquid having a similar 
viscosity, the temperature of which shall not exceed 100 deg. F during 
the test, and applying a pressure of 60 psig. The tank shall be capable 
of holding the prescribed pressure for at least 10 minutes without 
leakage, evidence of impending failure, or failure. All closures shall 
be in place while the test is made and the pressure shall be gauged at 
the top of the tank. Safety devices and/or vents shall be plugged during 
this test.
    (b) [Reserved]
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
as amended by Amdt. 178-104, 59 FR 49135, Sept. 26, 1994]



Sec. 178.255-13  Repair of tanks.

    (a) Tanks failing to meet the test may be repaired and retested, 
provided that repairs are made in complete compliance with the 
requirements of this specification.
    (b) [Reserved]



Sec. 178.255-14  Marking.

    (a) In addition to marking required by the American Society of 
Mechanical Engineers Code, every tank shall bear permanent marks at 
least \1/8\-inch high stamped into the metal near the center of one of 
the tank heads or stamped into a plate permanently attached to the tank 
by means of brazing or welding or other suitable means as follows:

 Manufacturer's name ---- Serial No.____________________________________
 DOT specification______________________________________________________
Nominal capacity -------------- (gallons)
Tare weight -------------- (pounds)
 Date of manufacture____________________________________________________

    (b) [Reserved]
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 178-67, 46 FR 49906, Oct. 8, 1981]



Sec. 178.255-15  Report.

    (a) A copy of the manufacturer's data report required by the Code 
(See Sec. 178.245-1(a)) under which the tank is fabricated must be 
furnished to the owner for each new tank.

        Place___________________________________________________________
        Date____________________________________________________________
      Portable tank
Manufactured for -------------- Company
 Location_______________________________________________________________
Manufactured by -------------- Company
 Location_______________________________________________________________
Consigned to ------------------ Company
 Location_______________________________________________________________
Size ------ feet outside diameter by ------long.
Marks on tank as prescribed by Sec. 178.255-14 of this specification are 
as follows:
 Manufacturer's name____________________________________________________
 Serial number__________________________________________________________
 Owner's serial number__________________________________________________
 DOT specification______________________________________________________
 ASME Code Symbol (par U-201)___________________________________________
 Date of manufacture____________________________________________________
Nominal capacity -------------- gallons.
    It is hereby certified that this tank is in complete compliance with 
the requirements of DOT specification No. 60.
      (Signed)__________________________________________________________
                                                   Manufacturer or owner

    (b) [Reserved]
[29 FR 18972, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 178-83, 50 FR 11066, Mar. 19, 1985]



Sec. 178.270  Specification IM 101 and IM 102 steel portable tanks; general design and construction requirements.



Sec. 178.270-1  Specification requirements for IM 101 and IM 102 steel portable tanks.

    (a) Each IM portable tank must meet the requirements of this section 
in addition to the requirements of Sec. 178.271 (IM 101) or Sec. 178.272 
(IM 102). These requirements apply to IM portable tanks of diameters no 
greater than 2438 mm (96 inches) that are designed to carry liquids 
having a vapor pressure of less than 2.97 bar-absolute (43 psia) at a 
temperature of 50 deg. C (122 deg. F).
    (b) [Reserved]
[Amdt. 178-65, 46 FR 9895, Jan. 29, 1981]



Sec. 178.270-2  General.

    (a) Each tank, including attachments and service and structural 
equipment, must be designed to withstand, without loss of contents, the 
maximum internal pressure that can be anticipated to result from the 
contents and the static

[[Page 803]]

and dynamic stresses incurred in normal handling and transportation.
    (b) For the purpose of this subchapter maximum allowable working 
pressure or MAWP is the maximum pressure that an IM portable tank may 
experience during any normal operation (including loading and 
unloading). The only exception to this limitation is hydrostatic 
testing.
    (c) Each portable tank must have a cross-sectional design that is 
capable of being stress analyzed either mathematically or by the 
experimental method contained in UG-101 of the ASME Code, or other 
method acceptable to the Associate Administrator for Hazardous Materials 
Safety.
    (d) Each portable tank must be designed so that the center of 
gravity of the filled tank is approximately centered within the points 
of attachment for lifting devices.
    (e) When credit is taken for insulation to reduce the required 
emergency venting capacity of safety relief devices, the insulation must 
be jacketed or otherwise protected from the accumulation of moisture or 
foreign matter that would decrease its efficiency or corrode the tank.
    (f) Each portable tank that has a lining must have a lining material 
that meets the following requirements:
    (1) The material used to line the tank must be--
    (i) Substantially immune to attack by the hazardous material 
transported;
    (ii) Homogeneous;
    (iii) Nonporous;
    (iv) Imperforated when applied;
    (v) At least as elastic as the material of the tank shell; and
    (vi) Have thermal-expansion characteristics compatible with the tank 
shell.
    (2) The lining of the tank, tank fitting and piping must be--
    (i) Attached by bonding or other satisfactory means;
    (ii) Continuous; and
    (iii) Extended around the face of any flange.
    (3) Joints and seams in the lining must be made by fusing the 
material together or by other equally effective means.
[Amdt. 178-65, 46 FR 9895, Jan. 29, 1981, as amended by Amdt. 178-65, 46 
FR 24184, Apr. 30, 1981; Amdt. 178-97, 56 FR 66284 and 66287, Dec. 20, 
1991]



Sec. 178.270-3  Materials of construction.

    (a) Each portable tank must be constructed of carbon or alloy 
steels. Materials included in part UHT of the ASME Code or equivalent 
materials are not authorized. Any materials used in the tank shell must 
conform to a recognized national standard and must be suitable for the 
external environments in which the tank will be carried. The minimum 
elongation for any material must be 20 percent or greater.
    (b) The maximum stress allowed for a material shall be determined 
using one of the following methods:
    (1) 1.5 times the specified values for the material at 93 deg. C 
(200 deg. F) in Section VIII, Division 1 of the ASME Code;
    (2) Derived by test for the actual yield and tensile strengths at 
93 deg. C (200 deg. F) for the actual group of plates used to fabricate 
the tank using the methods described in Sec. 178.270-3(d); or
    (3) Derived from the minimum yield and tensile strengths at 93 deg. 
C (200 deg. F) specified by the national standard to which the material 
is manufactured using the methods described in Sec. 178.270-3(d).
    (c) Maximum allowable stress values, derived for an actual group of 
plates, that are based on actual tensile and yield strengths of the 
material at 93 deg. C (200 deg. F) shall not be greater than 120 percent 
of the specified minimum yield and tensile strength specified in the 
national standard to which the material is manufactured.
    (d) The maximum allowable stress values must be derived from the 
following criteria:
    (1) For austenitic steels;
    (i) When the yield strength is determined using the 0.2 percent 
offset, 93.75 percent of the yield strength.
    (ii) When the yield strength is determined using the 1.0 percent 
offset, 75 percent of the yield strength.
    (2) For carbon and low alloy steels, the yield strength is 
determined using the 0.2 percent offset. The maximum allowable stress 
value is the lower of

[[Page 804]]

93.75 percent of the yield strength or 37.5 percent of the tensile 
strength.
    (e) For purposes of these specifications, tensile strength, yield 
strength and elongation must be determined using a specimen having a 
gauge length:
L0=5.65(S0)1/2

where:

L0=the gauge length of the specimen--millimeters (inches); 
          and
S0=the cross sectional area of the specimen--square 
          millimeters (square inches).


Tensile tests and analysis of results must be in accordance with ``ISO 
82-1974(e) Steels-Tensile Testing.'' The yield strength in tension shall 
be the stress corresponding to a permanent strain of 0.2 percent of the 
gauge length, except that for high alloy austenitic steels the yield 
strength shall be the stress corresponding to a permanent strain of 0.2 
or 1.0 percent of the gauge length as appropriate. The elongation must 
be at least 20 percent.
    (f) If maximum allowable stress values or minimum tank wall 
thicknesses are based on the actual yield strength, the actual tensile 
strength, or the actual elongation for the material used to fabricate 
the tank, the test records or certification of test results by the 
material producer or tank manufacturer must be approved by the approval 
agency, retained by the tank manufacturer for a period not less than 15 
years, and made available to any duly identified representative of the 
Department or the owner of the tank.
[Amdt. 178-65, 46 FR 9895, Jan. 29, 1981]



Sec. 178.270-4  Structural integrity.

    (a) Maximum stress values. The maximum calculated stress value in a 
tank at the Test Pressure must be less than or equal to that specified 
for the material of construction at 93 deg.C. (200 deg.F.) in 
Sec. 178.270-3 of this part.
    (b) Tank shell loadings. Tank shells, heads, and their fastenings 
shall be designed to prevent stresses in excess of two thirds those 
specified in Sec. 178.270-3 of this part. The design calculations must 
include the forces imposed by each of the following loads:
    (1) An internal pressure equal to the maximum allowable working 
pressure less 1 bar (14.5 psig) in combination with the simultaneously 
applied loadings of 3W vertically downward, 2W longitudinally, and 1W 
laterally acting through the center of the tank (W is the maximum 
permissible weight of the loaded tank and its attachments), and the 
requirements of paragraphs (b) (4), (5) and (6) of this section;
    (2) An internal pressure equal to the maximum allowable working 
pressure less 1 bar (14.5 psig), in combination with the simultaneously 
applied loadings of 1W vertically upward, 2W longitudinally, and 1W 
laterally acting through the center of the tank (W is the maximum 
permissible weight of the loaded tank and its attachment), and the 
requirements of paragraphs (b) (4), (5) and (6) of this section;
    (3) The load on the tank head resulting from an internal pressure 
equal to the maximum allowable working pressure, less 1 bar (14.5 psig), 
in combination with the dynamic pressure resulting from a longitudinal 
deceleration of 2 ``g'', and the requirements of paragraphs (b) (4), (5) 
and (6) of this section;
    (4) Loads resulting from any discontinuities between tank shell and 
heads;
    (5) Superimposed loads such as operating equipment, insulation, 
linings and piping; and
    (6) Reactions of supporting lugs and saddles or other supports.
    (c) The shell thickness used in calculating the resulting stress 
levels in a tank shall be exclusive of any corrosion allowance.
[Amdt. 178-65, 46 FR 9895, Jan. 29, 1981]



Sec. 178.270-5  Minimum thickness of shells and heads.

    (a) For the purposes of this section, mild steel is steel with a 
guaranteed minimum tensile strength of 37 decanewtons per square 
millimeter (53,650 p.s.i.) and a guaranteed elongation of 27 percent or 
greater.
    (b) Except as otherwise provided in this subchapter, the shell and 
heads of each portable tank constructed of reference mild steel:
    (1) With a maximum cross-sectional dimension of 1.8 meters (5.9 
feet) or less, shall be at least 5mm (0.197 inches) thick; or,
    (2) With a maximum cross-sectional dimension exceeding 1.8 meters 
(5.9

[[Page 805]]

feet), shall be at least 6.35mm (0.250 inches) thick.
    (c) The minimum thickness of the shell and heads of each portable 
tank constructed of a steel other than the reference mild steel, shall 
be obtained from the following formula:

                        Formula for metric units

e1=(10e0)/(Rm1 A1)1/3

                    Formula for nonmetric units

e1=(112.3e0)/(Rm1 A1)1/
          3
where:

e0=Required thickness of the reference steel from 
          Sec. 178.270-5(b)--millimeters (inches);
e1=Equivalent thickness of the steel used--millimeters 
          (inches);
Rm1=Specified minimum tensile strength of the steel used--
          decanewtons per square millimeter (p.s.i.); and
A1=Specified minimum percentage elongation of the steel 
          used--percent times 100 (i.e., if 20% use 20.0).

    (d) When other than the standard minimum thickness for the reference 
mild steel is specified for a tank in this subchapter, the specified 
minimum shell and head thickness must be at least equal to the larger of 
the thicknesses calculated from the formula given in Sec. 178.270-5(c) 
and the following formula:

                        Formula for metric units

e1=(10e0 d1)/1.8(Rm1 
          A1)1/3

                    Formula for nonmetric units

e1=(112.3e0 d1)/5.9(Rm1 
          A1)1/3

where:

e1=Equivalent thickness of the steel used--millimeters 
          (inches);
e0=The specified minimum shell and head thickness of the 
          reference mild steel specified in the IM Tank Table--
          millimeters (inches);
d1=Actual outside diameter of the tank--meters (feet);
Rm1=Specified minimum tensile strength of the steel used--
          decanewtons per square millimeter (p.s.i.); and
A1=Specified minimum percentage elongation of the steel 
          used--percent times 100 (i.e., if 20% use 20.0).

    Note: For paragraphs (c) and (d) of this section the actual values 
for the tensile strength and percent elongation for the steel, as 
determined through tests on specimens from the group of plates to be 
used in the fabrication of the tank, may be substituted for the 
specified minimum values in the calculation prescribed in this paragraph 
(See Sec. 178.270-3 of this part). Test records or certification of test 
results by the material producer or tank manufacturer must be retained 
by the tank manufacturer for a period not less than 15 years and must be 
made available to the Department or the owner of the tank.

[Amdt. 178-65, 46 FR 9896, Jan. 29, 1981, as amended by Amdt. 178-97, 56 
FR 66284, Dec. 20, 1991; 57 FR 45465, Oct. 1, 1992; Amdt. 178-99, 58 FR 
51534, Oct. 1, 1993]



Sec. 178.270-6  Tank supports, frameworks and lifting attachments.

    (a) Each portable tank must be constructed with a permanent support 
structure that provides a secure base in transport. Skids, frameworks, 
cradles, or similar devices are acceptable. The calculated stress in 
tank supports, frameworks, and lifting attachments must not exceed 80 
percent of the specified minimum yield strength of the material of 
construction under the applicable loading conditions specified in 
Sec. 178.270-4(b).
    (b) An IM portable tank that meets the definition of ``container'' 
in Sec. 450.3(a)(3) must meet the requirements of parts 450 through 453 
of this title, in addition to the requirements of this subchapter.
[Amdt. 178-65, 46 FR 9896, Jan. 29, 1981]



Sec. 178.270-7  Joints in tank shells.

    Joints in tank shells must be made by fusion welding. Such joints 
and their efficiencies must be as required by the ASME Code. Weld 
procedures and welder performance must be ASME Code qualified or must be 
qualified by the approval agency in accordance with the procedures in 
the ASME Code, Section IX, Welding and Brazing Qualifications. A record 
of each qualification must be retained by the manufacturer for the 
period prescribed in ASME Code, Section VIII, Pressure Vessels, and must 
be made available to any duly identified representative of the 
Department and the owner of the tank.
[Amdt. 178-65, 46 FR 9896, Jan. 29, 1981; 46 FR 24184, Apr. 30, 1981]

[[Page 806]]



Sec. 178.270-8  Protection of valves and accessories.

    Each valve, fitting, accessory, safety device, gauging device, and 
other appurtenance shall be adequately protected against mechanical 
damage.
[Amdt. 178-65, 46 FR 9896, Jan. 29, 1981]



Sec. 178.270-9  Inspection openings.

    Each portable tank must be fitted with a manhole or other inspection 
opening sited above the maximum liquid level to allow for complete 
internal inspection and adequate access for maintenance and repair of 
the interior. Each portable tank with a capacity of more than 1894 
liters (500 gallons) must be fitted with an elliptical or round manhole 
at least 279  x  381 millimeters (11  x  15 inches), or 254  x  405 
millimeters (10  x  16 inches), or with a circular manhole at least 381 
millimeters (15 inches) in diameter. Any inspection opening and closure 
must be designed and reinforced as required by the ASME Code.
[Amdt. 178-65, 46 FR 9896, Jan. 29, 1981, as amended by Amdt. 178-104, 
59 FR 49135, Sept. 26, 1994]



Sec. 178.270-10  External design pressure.

    (a) Each portable tank not fitted with vacuum relief devices must be 
designed to withstand a positive external pressure differential of at 
least 0.4 bar (6 p.s.i.).
    (b) Each portable tank fitted with vacuum relief devices must be 
designed to withstand a positive external pressure differential not less 
than the set pressure of the vacuum relief device and in any case at 
least 0.21 bar (3 p.s.i.).
[Amdt. 178-65, 46 FR 9896, Jan. 29, 1981]



Sec. 178.270-11  Pressure and vacuum relief devices.

    (a) Relief devices required. Each portable tank, or each independent 
compartment of a portable tank, must be fitted with pressure relief 
devices in accordance with the following:
    (1) Each portable tank, or each independent compartment of a 
portable tank, with a capacity of more than 1893 liters (500 gallons), 
must be provided with a primary pressure relief device consisting of a 
spring-loaded pressure relief valve and, in addition, may have one or 
more emergency pressure relief devices that may be a spring-loaded 
pressure relief valve, a frangible disc or fusible element in parallel 
with the primary pressure relief device.
    (2) Each portable tank, or each independent compartment of a 
portable tank, with a capacity of 1893 liters (500 gallons) or less, 
must be fitted with a primary pressure relief device that may either be 
a frangible disc or a spring-loaded pressure relief valve.
    (3) If a frangible disc is inserted in series with required pressure 
relief valve, the space between the frangible disc and the pressure 
relief valve must be provided with a suitable tell-tale indicator to 
permit detection, prior to and during shipment, of disc rupture, 
pinholing, or leakage which could cause a malfunction of the pressure 
relief system. The frangible disc must rupture at a tank pressure within 
the range specified in paragraph (c)(1) of this section.
    (b) Location and construction of relief devices. (1) Pressure relief 
devices must be spring-loaded valves, frangible discs, or fusible 
elements. Vacuum relief devices must be capable of reclosing in any 
attitude. Each pressure relief device inlet must be situated in the 
vapor space of the tank. The discharge from any device must be 
unrestricted and directed to prevent impingement upon the tank shell or 
structural framework. Protective devices which deflect the flow of vapor 
are permissible provided the required vent capacity is maintained. 
Pressure and vacuum relief devices including their inlets must be sited 
on the top of the tank in a position as near as possible to the 
longitudinal and transversal center of the tank within the following 
limitation:
    (i) Longitudinally on the tank within 107 cm (3\1/2\ feet) or \1/6\ 
the tank length, whichever is less, from the top center of the tank; and
    (ii) Transversally within 12 degrees of the tank top.
    (2) Except for a relief device installed in a piping system, each 
relief device must provide unrestricted venting under all conditions. 
Each pressure relief system, including any piping, must provide a 
venting capacity at least equal to the venting capacity specified

[[Page 807]]

in Sec. 178.270-11(d) for the tank on which the system is installed.
    (3) Fusible elements, when installed, must not be protected from 
direct communication with external heat sources.
    (4) Spring-loaded pressure relief valves must be constructed in a 
manner to prevent unauthorized adjustment of the relief setting.
    (c) Pressure settings of relief devices--(1) Primary pressure relief 
devices. The primary relief device required by paragraph (a) of this 
section must be set to function in the range of--
    (i) No less than 67 percent and no greater than 83 percent of test 
pressure for tanks hydrostatically tested under Sec. 178.270-13(a) of 
this subpart at a gauge pressure below 455 kPa (66 psi). Spring-loaded 
pressure relief valves must close after discharge at a pressure not less 
than 80 percent of start-to-discharge pressure.
    (ii) No less than 67 percent and no greater than 74 percent of test 
pressure for tanks hydrostatically tested under Sec. 178.270-13(a) of 
this subpart at a gauge pressure of 455 kPa (66 psi) or higher. Spring-
loaded pressure relief valves must close after discharge at a pressure 
not less than 90 percent of start-to-discharge pressure.
    (2) Emergency pressure relief devices. Each frangible disc, other 
than one used as a primary relief device in accordance with paragraph 
(b)(2) of this section, must be designed to burst at a pressure greater 
than 83 percent of and less than or equal to tank hydrostatic test 
pressure. Each spring-loaded pressure relief valve used as an emergency 
pressure relief device must be set to operate at no less than 83 percent 
of hydrostatic test pressure and be fully open at test pressure.
    (3) Fusible elements. Fusible elements must have a nominal yield 
temperature greater than the highest tank operating temperature and less 
than or equal to 121 deg.C (250 deg.F). The pressure developed in the 
tank at the fusible element yield temperature must be below the test 
pressure of the tank.
    (4) Vacuum relief devices. Vacuum relief devices, when used, must be 
designed to provide total containment of product under normal and 
accident conditions and must be set to open at a nominal external 
overpressure of not less than 0.21 bar (3 pounds per square inch) but 
not greater than the external pressure for which the tank is designed. 
Each vacuum relief device must have a minimum cross sectional flow area 
of 2.84 cm 2 (0.44 square inches).
    (d) Venting capacity of pressure relief devices--(1) Pressure relief 
valves (spring-loaded). Each pressure relief valve must have a minimum 
vent capacity of at least 170 standard cubic meters per hour (SCMH) 
(6,000 standard cubic feet per hour (SCFH)). The minimum total pressure 
relief valve vent capacity for each tank shall be 340 SCMH (12,000 SCFH) 
per 32.5m\2\ (350 square feet) of exposed tank area, but in any case at 
least 340 SCMH (12,000 SCFH).
    (2) Total tank vent capacity. The total vent capacity of all 
pressure relief devices installed on each portable tank must be 
sufficient with all devices operating to limit the pressure in the tank 
to less than or equal to the test pressure. Except as provided in 
paragraph (d)(3) or (d)(4) of this section, the total vent capacity must 
be at least equal to that shown in the following table:

                  Table I--Minimum total vent capacity                  
   [Metric units table in cubic meters of air per hour at atmospheric   
                         pressure and 15 deg.C]                         
------------------------------------------------------------------------
                                        Cubic                    Cubic  
                                       meters      Exposed      meters  
     Exposed area square meters       free air   area square   free air 
                                      per hour      meters     per hour 
------------------------------------------------------------------------
2..................................         841      37.5          9.306
3..................................       1,172      40            9,810
4..................................       1,485      42.5         10,308
5..................................       1,783      45           10,806
6..................................       2,069      47.5         11,392
7..................................       2,348      50           11,778
8..................................       2,621      52.5         12,258
9..................................       2,821      55           12,732
10.................................       3,146      57.5         13,206
12.................................       3,655      60           13,674
14.................................       4,146      62.5         14,142
16.................................       4,625      65           14,604
18.................................       5,092      67.5         15,066
20.................................       5,556      70           15,516
22.5...............................       6,120      75           16,422
25.................................       6,672      80           17,316
27.5...............................       7,212      85           18,198
30.................................       7,746      90           19,074
32.5...............................       8,268      95           19,938
35.................................       8,790     100           20,790

[[Page 808]]

                                                                        
------------------------------------------------------------------------


 [Nonmetric units in cubic feet of air per hour at atmospheric pressure 
                              and 59 deg.F]                             
------------------------------------------------------------------------
                                                    Exposed             
                                      Cubic feet     area     Cubic feet
      Exposed area square feet         free air     square     free air 
                                       per hour      feet      per hour 
------------------------------------------------------------------------
20..................................      27,600         275     237,000
30..................................      38,500         300     256,000
40..................................      48,600         350     289,500
50..................................      58,600         400     322,100
60..................................      67,700         450     355,900
70..................................      77,000         500     391,000
80..................................      85,500         550     417,500
90..................................      94,800         600     450,000
100.................................     104,000         650     479,000
120.................................     121,000         700     512,000
140.................................     136,200         750     540,000
160.................................     152,100         800     569,000
180.................................     168,200         850     597,000
200.................................     184,000         900     621,000
225.................................     199,000         950     656,000
250.................................     219,500       1,000     686,000
------------------------------------------------------------------------
Note: Interpolate for intermediate sizes.                               

    (3) Notwithstanding the minimum total vent capacity shown in Table 
I, of paragraph (d)(2), a tank in dedicated service may have a lesser 
total vent capacity provided the approval certificate required by 
Sec. 173.32a of this subchapter specifies the hazardous materials for 
which the tank is suitable. The lesser total vent capacity must be 
determined in accordance with the following formula:

                        Formula for metric units

    Q=5,660,000 A 0.82 (ZT) 0.5/(LC)(M 
0.5)

                       Formula for nonmetric units

    Q=37,980,000 A 0.82 (ZT) 0.5/(LC)(M 
0.5)

where:
    Q=The total required venting capacity, in cubic meters of air per 
hour at standard conditions of 15.6 deg.C and 1 atm (cubic feet of air 
per hour at standard conditions of 60 deg.F and 14.7 psia);
    T=The absolute temperature of the vapor at the venting conditions--
degrees Kelvin ( deg.C+273) [degrees Rankine ( deg.F+460)];
    A=The exposed surface area of tank shell--square meters (square 
feet);
    L=The latent heat of vaporization of the lading--calories per gram 
(BTU/lb);
    Z=The compressibiliy factor for the vapor (if this factor is 
unknown, let Z equal 1.0);
    M=The molecular weight of vapor;
    C=A constant derived from (K), the ratio of specific heats of the 
vapor. If (K) is unknown, let C=315.
    C=520[K(2/(K+1)) [(K+1)/(K-1)]]\1/2\

where:

    K=Cp/Cv
    Cp=The specific heat at constant pressure, in -
calories per gram degree centigrade (BTU/lb deg.F.); and
    Cv=The specific heat at constant volume, in -calories per 
gram degree centigrade (BTU/lb deg.F.).

    (4) The required total venting capacity determined by using Table I 
or paragraph (d)(3) of this section may be reduced for insulated tanks 
to Qt by the following formula:

    Qt=FQ1
where:

    Qt=The total required venting capacity of the insulated 
tank;
    Q1=The total venting capacity required for an uninsulated 
tank according to Table I or paragraph (d)(3) of this section;
    F=A coefficient with a value greater than or equal to 0.25 according 
to the following formula:

                        Formula for metric units

    F=8U(649-t)/93.5 x 10\6\

                       Formula for nonmetric units

    F=8U(1200-t)/34,500

where:

    U=The thermal conductance of the insulation system taken at 38 deg.C 
(100 deg.F), in gram calories per hour sq. meter  deg.C (BTU per hour 
sq. feet  deg.F); and
    t=The actual temperature of the substance at loading, in  deg.C 
( deg.F).

    (5) Insulation systems, used for the purpose of reducing the venting 
capacity, must be approved by the approval agency. In all cases, 
insulation systems approved for this purpose must:
    (i) Remain effective at all temperatures up to 649 deg.C 
(1200 deg.F); and
    (ii) Be jacketed with a material having a melting point of 649 deg.C 
(1200 deg.F) or greater.
    (6) The flow capacity rating of any pressure relief device must be 
certified by the manufacturer to be in accordance with the applicable 
provisions of the ASME Code with the following exceptions:
    (i) The ASME Code stamp is not required; and
    (ii) The flow capacity certification test for spring loaded pressure 
relief valves may be conducted at a pressure not to exceed 120% of the 
set pressure provided the stamped flow capacity rating is not greater 
than 83% of the average capacity of the valves tested.
    (e) Markings on pressure and vacuum relief devices. The following 
information shall be plainly displayed on each pressure relief device:

[[Page 809]]

    (1) The pressure or, when appropriate, the temperature at which the 
device is set to function;
    (2) Except for vacuum relief devices, the rated flow capacity of air 
discharged per minute at 15 deg.C (59 deg.F) and atmospheric pressure, 
at:
    (i) The set pressure for frangible discs;
    (ii) No greater than 20% above the start to discharge pressure for 
spring-loaded relief devices; or
    (iii) The fusing temperature for fusible elements.
    (3) The manufacturer's name and catalog number; and
    (4) The allowable tolerances at the start to discharge pressure and 
the allowable tolerances at the discharge temperature.
[Amdt. 178-65, 46 FR 9897, Jan. 29, 1981; 46 FR 24184, Apr. 30, 1981; as 
amended by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990; Amdt. 178-99, 58 FR 
51534, Oct. 1, 1993; Amdt. 178-104, 59 FR 49135, Sept. 26, 1994]



Sec. 178.270-12  Valves, nozzles, piping, and gauging devices.

    (a) All tank nozzles, except those provided for filling and 
discharge connections below the normal liquid level of the tank, relief 
devices, thermometer wells, and inspection openings, must be fitted with 
manually operated stop valves located as near the shell as practicable 
either internal or external to the shell. Each filling and discharge 
connection located below the normal liquid level of the tank must be 
equipped with an internal discharge valve. A tank nozzle installed in 
the vapor space to provide a filling or cleaning opening, which is 
closed by a blank flange or other suitable means, need not be provided 
with a manually operated stop valve. A tank nozzle installed for a 
thermometer well or inspection opening need not be provided with a 
manually operated stop valve.
    (b) Each valve must be designed and constructed to a rated pressure 
not less than the maximum allowable working pressure of the tank. Each 
stop valve with a screwed spindle must be closed by a clockwise motion 
of the handwheel. All valves must be constructed to prevent 
unintentional opening.
    (c) Each internal discharge valve shall be self-closing, located 
inside the tank, within the welded flange or within its companion 
flange.
    (d) A shear section must be located outboard of each internal 
discharge valve seat and within 10.2 cm (4 inches) of the vessel. The 
shear section must break under strain without affecting the product 
retention capabilities of the tank and any attachments.
    (e) All piping must be of suitable material. Welded joints must be 
used wherever practicable. The bursting strength of all piping and pipe 
fittings must be at least 4 times the maximum allowable working pressure 
of the tank. Piping must be supported in such a manner as to prevent 
damage due to thermal stresses, jarring or vibration.
    (f) All nozzles and tank shell penetrations for nozzles shall be 
designed and constructed in accordance with the ASME Code.
    (g) Glass liquid level gauges, or gauges of other easily 
destructible material, which are in direct communication with the 
contents of the tank are prohibited.
[Amdt. 178-65, 46 FR 9898, Jan. 29, 1981; 46 FR 24184, Apr. 30, 1981, as 
amended by Amdt. 178-117, 61 FR 50628, Sept. 26, 1996]



Sec. 178.270-13  Testing.

    (a) Hydrostatic test. Each portable tank and all piping, valves, and 
other attachments which are subject to the pressure of the contents of 
the tank, except pressure relief devices, must be hydrostatically tested 
by completely filling the tank (including domes, if any) with water or 
other liquid having a similar density and viscosity and applying a 
pressure of at least 150 percent of the maximum allowable working 
pressure. The pressure shall be maintained for at least 10 minutes. 
While under pressure, the tank shall be inspected for leakage, undue 
distortion, or other conditions which indicate weakness or which might 
render the tank unsafe for transportation service. Failure to 
successfully meet the test criteria shall be deemed evidence of failure 
to meet the requirements of this specification. Tanks failing to pass 
the test shall be suitably repaired and must successfully pass the 
prescribed

[[Page 810]]

tests prior to use for transporting any hazardous material.
    (b) Testing of internal coils. Internal coils, if installed, must be 
hydrostatically tested to an internal pressure of 13.8 bar (200 psig) or 
150 percent of the rated pressure of the coils, whichever is greater.
    (c) Tank container qualification test. For each tank design, a 
prototype tank, using a framework for containerized transport, must 
fulfill the requirements of parts 450-453 of this title for compliance 
with the requirements of Annex II of the International Convention for 
Safe Containers. In addition, the following tests must be completed 
without leakage or deformation that would render the tank unsuitable for 
use:
    (1) Longitudinal inertia. The tank loaded to its maximum gross 
weight must be positioned with its longitudinal axis vertical. It shall 
be held in this position for five minutes by support at the lower end of 
the base structure providing vertical and lateral restraint and by 
support at the upper end of the base structure providing lateral 
restraint only.
    (2) Lateral inertia. The tank loaded to its maximum gross weight 
must be positioned for five minutes with its transverse axis vertical. 
It shall be held in this position for five minutes by support at the 
lower side of the base structure providing vertical and lateral 
restraint and by support at the upper side of the base structure 
providing lateral restraint only.
    (d) Approval of smaller tanks of the same design. Design approval 
must include the prototype testing of at least one tank of each design 
and each size; however, a set of tests made on a tank of one size may 
serve for the approval of smaller tanks with equal or lesser diameter 
and length) made of the same material and thickness by the same 
fabrication technique and with identical supports and equivalent 
closures and other appurtenances.
    (e) Pressure and vacuum relief devices. Each spring loaded relief 
device must be tested for the accuracy of the setting prior to 
installation on a tank and must be effectively sealed to maintain the 
required setting.
[Amdt. 178-65, 46 FR 9898, Jan. 29, 1981; 46 FR 24184, Apr. 30, 1981]



Sec. 178.270-14  Marking of tanks.

    (a) General. Each tank must bear a corrosion resistant metal 
identification plate that is permanently attached to the portable tank 
and readily accessible for inspection. The information required in 
paragraph (b), and, when appropriate, paragraph (c) of this section must 
be stamped, embossed or otherwise marked by an equally durable method on 
the plate in characters at least 3 mm (0.118 inches) high. The plate 
must not be painted.
    (b) Required information. At least the following information must 
appear on the metal identification plate for each tank:
    (1) US DOT Specification number.
    (2) Country of manufacture.
    (3) Manufacturer's name.
    (4) Date of manufacture.
    (5) Manufacturer's serial number.
    (6) Identification of USA/DOT approval agency and approval number.
    (7) Maximum allowable working pressure, in bar or psig.
    (8) Test pressure, in bar or psig.
    (9) Total measured water capacity at 20 deg.C (68 deg.F), in liters 
or gallons.
    (10) Maximum allowable gross weight, in kg or lbs.
    (11) Equivalent minimum shell thickness in mild steel, in mm or 
inches.
    (12) Tank material and specification number.
    (13) Metallurgical design temperature range, in  deg.C or  deg.F.
    (c) Additional information. The following additional information 
must appear on the metal identification plate when applicable:
    (1) Lining material.
    (2) Heating coil maximum allowable working pressure in bar and psig.
    (3) Corrosion allowance, in mm or in.
    (d) In addition to the markings required above, each tank used in 
international transport must have a Safety Approval Plate containing the 
information required in Secs. 451.21 through 451.25 of this title.
    (e) Nothing in this section shall be deemed to preclude the display 
of other

[[Page 811]]

pertinent information on the required metal identification plate.
[Amdt. 178-65, 46 FR 9899, Jan. 29, 1981, as amended at 62 FR 51561, 
Oct. 1, 1997]



Sec. 178.271  Specification IM 101 steel portable tanks.



Sec. 178.271-1  General requirements.

    (a) Specification IM 101 portable tanks must conform to the general 
design and construction requirements in Sec. 178.270 of this subpart in 
addition to the specific design requirements contained in this section.
    (b) The maximum allowable working pressure of each tank shall be 
equal to or greater than 1.75 bar (25.4 psig) and less than 6.8 bar (100 
psig).
    (c) Each tank shall be designed and constructed in accordance with 
the requirements of Section VIII, Division 1, of the ASME Code except as 
limited or modified in this section or in Sec. 178.270 of this subpart. 
ASME certification or stamp is not required.
[Amdt. 178-65, 46 FR 9899, Jan. 29, 1981, as amended by Amdt. 178-104, 
59 FR 49135, Sept. 26, 1994]



Sec. 178.272  Specification IM 102 steel portable tanks.



Sec. 178.272-1  General requirements.

    (a) Specification IM 102 portable tanks must conform to the general 
design and construction requirements in Sec. 178.270 of this subpart in 
addition to the specific design requirements contained in this section.
    (b) The maximum allowable working pressure of each tank shall be 
less than 1.75 bar (25.4 psig) but at least 1.0 bar (14.5 psig).
    (c) Each tank shall be designed and constructed in accordance with 
the requirements of Section VIII, Division 1, of the ASME Code except as 
limited or modified in this section or in Sec. 178.270 of this subpart. 
ASME certification or stamp is not required.
[Amdt. 178-65, 46 FR 9899, Jan. 29, 1981, as amended by Amdt. 178-104, 
59 FR 49135, Sept. 26, 1994]



Sec. 178.272-2  Minimum thickness of shells and heads.

    (a) The approval agency may authorize a minimum thickness less than 
that required by Sec. 178.270-5 of this subpart where additional 
protection against tank puncture provides equal integrity.
    (b) The shell and head thickness of a tank must be at least:
    (1) 3.18 mm (0.125 inches) for a tank with a maximum cross-sectional 
dimension of 1.8 meters (5.9 feet) or less; or
    (2) 4 mm (0.157 inches) for a tank constructed of the reference mild 
steel having a maximum cross-sectional dimension exceeding 1.8 meters 
(5.9 feet). For tanks having a maximum cross-sectional dimension 
exceeding 1.8 meters (5.9 feet) constructed of other steels, an 
equivalent head and shell thickness calculated in accordance with 
Sec. 178.270-5(c) of this subpart may be used, subject to an absolute 
minimum of 3.18 mm (0.125 inches).
    (c) The following additional puncture protection systems are 
authorized:
    (1) An overall external structural protection, such as a jacket, 
which is rigidly secured to the tank with a layer of cushioning material 
installed between the external structural protection and the tank; or
    (2) A complete framework surrounding the tank including both 
longitudinal and transverse structural members.
[Amdt. 178-65, 46 FR 9899, Jan. 29, 1981]



                          Subpart I--[Reserved]



       Subpart J--Specifications for Containers for Motor Vehicle 
                             Transportation

    Source:  29 FR 18975, Dec. 29, 1964, unless otherwise noted. 
Redesignated at 32 FR 5606, Apr. 5, 1967.



Sec. 178.318  Specification MC 201; container for detonators and percussion caps.



Sec. 178.318-1  Scope.

    (a) This specification pertains to a container to be used for the 
transportation of detonators and percussion caps in connection with the 
transportation of liquid nitroglycerin, desensitized liquid 
nitroglycerin or diethylene glycol dinitrate, where any or all of such 
types of caps may be used

[[Page 812]]

for the detonation of liquid nitroglycerin, desentitized liquid 
nitroglycerin or diethylene glycol dinitrate in blasting operations. 
This specification is not intended to take the place of any shipping or 
packing requirements of this Department where the caps in question are 
themselves articles of commerce.
    (b) [Reserved]
[29 FR 18975, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 178-60, 44 FR 70733, Dec. 10, 1979]



Sec. 178.318-2  Container.

    (a) Every container for detonators and percussion caps coming within 
the scope of this specification shall be constructed entirely of hard 
rubber, phenolresinous or other resinous material, or other nonmetallic, 
nonsparking material, except that metal parts may be used in such 
locations as not in any event to come in contact with any of the caps. 
Space shall be provided so that each detonator of whatever nature may be 
inserted in an individual cell in the body of the container, into which 
each such cap shall snugly fit. There shall be provided no more than 
twenty (20) such cellular spaces. Space may be provided into which a 
plurality of percussion caps may be carried, provided that such space 
may be closed with a screw cap, and further provided that each or any 
such space is entirely separate from any space provided for any 
detonator. Each cellular space into which a detonator is to be inserted 
and carried shall be capable of being covered by a rotary cover so 
arranged as to expose not more than one cell at any time, and capable of 
rotation to such a place that all cells will be covered at the same 
time, at which place means shall be provided to lock the cover in place. 
Means shall be provided to lock in place the cover for the cells 
provided for the carrying of detonators. The requirement that not more 
than one cell be exposed at one time need not apply in the case of 
detonators, although spaces for such caps and detonators shall be 
separate. Sufficient annular space shall be provided inside the cover 
for such detonators that, when the cover is closed, there will be 
sufficient space to accommodate the wires customarily attached to such 
caps. If the material is of such a nature as to require treatment to 
prevent the absorption of moisture, such treatment shall be applied as 
shall be necessary in order to provide against the penetration of water 
by permeation. A suitable carrying handle shall be provided, except for 
which handle no part of the container may project beyond the exterior of 
the body.
    (b) Exhibited in plates I and II are line drawings of a container 
for detonators and percussion caps, illustrative of the requirements set 
forth in Sec. 178.318-2(a). These plates shall not be construed as a 
part of this specification.

[[Page 813]]

[GRAPHIC] [TIFF OMITTED] TC02MR91.076



Sec. 178.318-3  Marking.

    Each container must be marked as prescribed in Sec. 173.24 of this 
subchapter.
[Amdt. 178-40, 41 FR 38181, Sept. 9, 1976]



Sec. 178.320  General requirements applicable to all DOT specification cargo tank motor vehicles.

    (a) Definitions. For the purposes of this subpart,
    Cargo tank, as defined in Sec. 171.8 of this subchapter, means a 
bulk packaging which:
    (1) Is a tank intended primarily for the carriage of liquids or 
gases (including appurtenances, reinforcements, fittings, and closures). 
(For definition of ``tank'', see Sec. 178.345-1(c), Sec. 178.337-1, or 
Sec. 178.338-1, as applicable);
    (2) Is permanently attached to or forms a part of a motor vehicle 
but which, by reason of its size, construction or attachment to a motor 
vehicle

[[Page 814]]

is loaded or unloaded without being removed from the motor vehicle; and
    (3) Is not fabricated under a specification for cylinders, portable 
tanks, tank cars, or multi-unit tank car tanks.
    Cargo tank motor vehicle, as defined in Sec. 171.8 of this 
subchapter, means a motor vehicle with one or more cargo tanks 
permanently attached to or forming an integral part of the motor 
vehicle.
    Cargo tank wall means those parts of the cargo tank which make up 
the primary lading retention structure including shell, bulkheads, and 
fittings which, when closed during transportation of lading, yields the 
minimum volume of the cargo tank assembly.
    Design type means one or more cargo tanks which are made--
    (1) To the same specification;
    (2) By the same manufacturer;
    (3) To the same engineering drawings and calculations, except for 
minor variations in piping which do not affect the lading retention 
capability of the cargo tank;
    (4) Of the same materials of construction;
    (5) To the same cross-sectional dimensions;
    (6) To a length varying by no more than five percent;
    (7) With the volume varying by no more than five percent (due to a 
change in length only); and
    (8) For the purposes of Sec. 178.338 only, with the same insulation 
system.
    Manufacturer means any person engaged in the manufacture of a DOT 
specification cargo tank, cargo tank motor vehicle or cargo tank 
equipment which forms part of the cargo tank wall. This term includes 
attaching a cargo tank to a motor vehicle or to a motor vehicle 
suspension component which involves welding on the cargo tank wall. A 
manufacturer shall register with the Department in accordance with 
subpart F of part 107 in subchapter A of this chapter.
    (b) Design certification. (1) Each cargo tank design type shall be 
certified in conformance with the specification requirements by a Design 
Certifying Engineer registered in accordance with subpart F of part 107.
    (2) The Design Certifying Engineer shall furnish to the manufacturer 
a certificate to indicate compliance with the specification 
requirements. The certificate must include the sketches, drawings, and 
calculations used for certification. Each certificate, including 
sketches, drawings, and calculations, shall be signed by the Design 
Certifying Engineer.
    (3) The manufacturer shall retain the design certificate at his 
principal place of business for as long as he manufactures DOT 
specification cargo tanks.
    (c) Exceptions to the ASME Code. Unless otherwise specified, when 
exceptions are provided in this subpart from compliance with certain 
paragraphs of the ASME Code, compliance with those paragraphs is not 
prohibited.
[Amdt. 178-89, 55 FR 37055, Sept. 7, 1990, as amended by Amdt. 178-98, 
58 FR 33306, June 16, 1993; Amdt. 178-118, 61 FR 51339, Oct. 1, 1996]



Sec. 178.337  Specification MC 331; cargo tank motor vehicle primarily for transportation of compressed gases as defined in subpart G of part 173 of this 
          subchapter.



Sec. 178.337-1  General requirements.

    (a) ASME Code construction. Tanks must be--
    (1) Seamless or welded construction, or a combination of both;
    (2) Designed and constructed in accordance with the ASME Code;
    (3) Made of steel or aluminum; however, if aluminum is used, the 
cargo tank must be insulated and the hazardous material to be 
transported must be compatible with the aluminum (see Secs. 178.337-
1(e)(2), 173.315(a) Table, and 178.337-2(a)(1) of this subchapter); and
    (4) Covered with a steel jacket if the cargo tank is insulated and 
used to transport a flammable gas (see Sec. 173.315(a) Table Note 11 of 
this subchapter).
    (b) Design pressure. The design pressure of a cargo tank authorized 
under this specification shall be not less than the vapor pressure of 
the commodity contained therein at 115 deg. F. or as prescribed for a 
particular commodity in Sec. 173.315(a) of this subchapter, except that 
in no case shall the design pressure of any cargo tank be less than 100 
p.s.i.g. nor more than 500 p.s.i.g.


[[Page 815]]


    Note 1: The term design pressure as used in this specification, is 
identical to the term maximum allowable working pressure as used in the 
ASME Code.

    (c) Openings. (1) Excess pressure relief valves shall be located in 
the top of the cargo tank or heads.
    (2) A chlorine cargo tank shall have only one opening. That opening 
shall be in the top of the cargo tank and shall be fitted with a nozzle 
that meets the following requirements:
    (i) On a cargo tank manufactured on or before December 31, 1974, the 
nozzle shall be protected by a dome cover plate which conforms to either 
the standard of The Chlorine Institute, Inc., Dwg. 103-3, dated January 
23, 1958, or to the standard specified in paragraph (c) (2) (ii) of this 
section.
    (ii) On a cargo tank manufactured on or after January 1, 1975, the 
nozzle shall be protected by a manway cover which conforms to the 
standard of The Chlorine Institute, Inc., Dwg. 103-4, dated September 1, 
1971.
    (d) Reflective design. Every uninsulated cargo tank permanently 
attached to a cargo tank motor vehicle shall, unless covered with a 
jacket made of aluminum, stainless steel, or other bright nontarnishing 
metal, be painted a white, aluminum or similar reflecting color on the 
upper two-thirds of area of the cargo tank.
    (e) Insulation. (1) Each cargo tank required to be insulated must 
conform with the use and performance requirements contained in 
Secs. 173.315(a) Table and 178.337-1 (a)(3) and (e)(2) of this 
subchapter.
    (2) Each cargo tank intended for chlorine; carbon dioxide, 
refrigerated liquid; or nitrous oxide, refrigerated liquid service must 
have suitable insulation of such thickness that the overall thermal 
conductance is not more than 0.08 Btu per square foot per  deg.F 
differential per hour. The conductance must be determined at 60  deg.F. 
Insulation material used on cargo tanks for nitrous oxide, refrigerated 
liquid must be noncombustible. Insulating material used on cargo tanks 
for chlorine must be corkboard or polyurethane foam, with a minimum 
thickness of 4 inches, or 2 inches minimum thickness of ceramic fiber/
fiberglass of 4 pounds per cubic foot minimum density covered by 2 
inches minimum thickness of fiber.
    (f) Postweld heat treatment. Postweld heat treatment must be as 
prescribed in the ASME Code except that each cargo tank constructed in 
accordance with Part UHT of the ASME Code must be postweld heat treated. 
Each chlorine cargo tank must be fully radiographed and postweld heat 
treated in accordance with the provisions of the ASME Code under which 
it is constructed. Where postweld heat treatment is required, the cargo 
tank must be treated as a unit after completion of all the welds in and/
or to the shells and heads. The method must be as prescribed in the ASME 
Code. Welded attachments to pads may be made after postweld heat 
treatment. A cargo tank used for anhydrous ammonia must be postweld heat 
treated. The postweld heat treatment must be as prescribed in the ASME 
Code, but in no event at less than 1050 deg. F. cargo tank metal 
temperature.
[Order 59-B, 30 FR 579, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-1, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 178.337-2  Material.

    (a) General. (1) All material used for construction of the cargo 
tank and appurtenances must be suitable for use with the commodities to 
be transported therein and must conform to the requirements of the ASME 
Code and/or requirements of the American Society for Testing and 
Materials in all respects.
    (2) Impact tests are required on steel used in the fabrication of 
each cargo tank constructed in accordance with part UHT of the ASME 
Code. The tests must be made on a lot basis. A lot is defined as 100 
tons or less of the same heat treatment processing lot having a 
thickness variation no greater than plus or minus 25 percent. The 
minimum impact required for full size specimens must be 20 foot-pounds 
in the longitudinal direction at -30 deg. F., Charpy V-Notch and 15 
foot-pounds in the transverse direction at -30 deg. F., Charpy V-Notch. 
The required values for subsize specimens must be reduced in direct

[[Page 816]]

proportion to the cross-sectional area of the specimen beneath the 
notch. If a lot does not meet this requirement, individual plates may be 
accepted if they individually meet this requirement.
    (3) The fabricator shall record the heat, and slab numbers, and the 
certified Charpy impact values, where required, of each plate used in 
each cargo tank on a sketch showing the location of each plate in the 
shell and heads of the cargo tank. Copies of each sketch shall be 
provided to the owner and retained for at least five years by the 
fabricator and made available to duly identified representatives of the 
Department of Transportation.
    (4) The direction of final rolling of the shell material shall be 
the circumferential orientation of the cargo tank shell.
    (b) For a chlorine cargo tank. Plates, the manway nozzle, and 
anchorage shall be made of carbon steel which meets the following 
requirements:
    (1) For a cargo tank manufactured on or before December 31, 1974--
    (i) Material shall conform to ASTM Specification A-300 -58, titled 
``Steel Plates for Pressure Vessels for Service at Low Temperatures'';
    (ii) Material shall be Class 1, Grade A, flange or firebox quality;
    (iii) Plate impact test specimens, as required under paragraph (a) 
of this section, shall be of the Charpy keyhole notch type; and
    (iv) Plate impact test specimens shall meet the impact test 
requirements in paragraph (a) of this section in both the longitudinal 
and transverse directions of rolling at a temperature of minus 45.5 C. 
(-50 deg. F.).
    (2) For a cargo tank manufactured on or after January 1, 1975--
    (i) Material shall conform to ASTM Specification A-612-72a, Grade B 
or A 516, Grade 65 or 70;
    (ii) Material shall meet the Charpy V-notch test requirements of 
ASTM Specification A 20; and
    (iii) Plate impact test specimens shall meet the impact test 
requirements in paragraph (a) of this section in both the longitudinal 
and transverse directions of rolling at a temperature of minus 40 deg. 
C. (-40 deg. F.).
    (c) A cargo tank in anhydrous ammonia service must be constructed of 
steel. The use of copper, silver, zinc or their alloys is prohibited. 
Baffles made from aluminum may be used only if joined to the cargo tank 
by a process not requiring postweld heat treatment of the cargo tank.
[Order 59-B, 30 FR 579, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-2, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 178.337-3  Structural integrity.

    (a) General requirements and acceptance criteria. (1) Except as 
provided in paragraph (d) of this section, the maximum calculated design 
stress at any point in the cargo tank may not exceed the maximum 
allowable stress value prescribed in Section VIII of the ASME Code, or 
25 percent of the tensile strength of the material used.
    (2) The relevant physical properties of the materials used in each 
cargo tank may be established either by a certified test report from the 
material manufacturer or by testing in conformance with a recognized 
national standard. In either case, the ultimate tensile strength of the 
material used in the design may not exceed 120 percent of the ultimate 
tensile strength specified in either the ASME Code or the ASTM standard 
to which the material is manufactured.
    (3) The maximum design stress at any point in the cargo tank must be 
calculated separately for the loading conditions described in paragraphs 
(b), (c), and (d) of this section. Alternate test or analytical methods, 
or a combination thereof, may be used in place of the procedures 
described in paragraphs (b), (c), and (d) of this section, if the 
methods are accurate and verifiable.
    (4) Corrosion allowance material may not be included to satisfy any 
of the design calculation requirements of this section.
    (b) The static design and construction of each cargo tank must be in 
accordance with section VIII of the ASME Code. The cargo tank design 
must include calculation of stresses generated by design pressure, the 
weight of lading, the weight of structure supported by the cargo tank 
wall,

[[Page 817]]

and the effect of temperature gradients resulting from lading and 
ambient temperature extremes. When dissimilar materials are used, their 
thermal coefficients must be used in calculation of thermal stresses. 
Stress concentrations in tension, bending and torsion which occur at 
pads, cradles, or other supports must be considered in accordance with 
appendix G of the ASME Code.
    (c) Shell design. Shell stresses resulting from static or dynamic 
loadings, or combinations thereof, are not uniform throughout the cargo 
tank motor vehicle. The vertical, longitudinal, and lateral normal 
operating loadings can occur simultaneously and must be combined. The 
vertical, longitudinal and lateral extreme dynamic loadings occur 
separately and need not be combined.
    (1) Normal operating loadings. The following procedure addresses 
stress in the tank shell resulting from normal operating loadings. The 
effective stress (the maximum principal stress at any point) must be 
determined by the following formula:

    S = 0.5(Sy + Sx)  
[0.25(Sy - Sx)2 + 
Ss2]0.5

Where:

(i) S = effective stress at any given point under the combination of 
static and normal operating loadings that can occur at the same time, in 
psi.
(ii) Sy = circumferential stress generated by the MAWP and 
external pressure, when applicable, plus static head, in psi.
(iii) Sx = The following net longitudinal stress generated by 
the following static and normal operating loading conditions, in psi:

    (A) The longitudinal stresses resulting from the MAWP and external 
pressure, when applicable, plus static head, in combination with the 
bending stress generated by the static weight of the fully loaded cargo 
tank motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall;
    (B) The tensile or compressive stress resulting from normal 
operating longitudinal acceleration or deceleration. In each case, the 
forces applied must be 0.35 times the vertical reaction at the 
suspension assembly, applied at the road surface, and as transmitted to 
the cargo tank wall through the suspension assembly of a trailer during 
deceleration; or the horizontal pivot of the truck tractor or converter 
dolly fifth wheel, or the drawbar hinge on the fixed dolly during 
acceleration; or anchoring and support members of a truck during 
acceleration and deceleration, as applicable. The vertical reaction must 
be calculated based on the static weight of the fully loaded cargo tank 
motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall. The following loadings must be 
included:
    (1) The axial load generated by a decelerative force;
    (2) The bending moment generated by a decelerative force;
    (3) The axial load generated by an accelerative force; and
    (4) The bending moment generated by an accelerative force; and
    (C) The tensile or compressive stress generated by the bending 
moment resulting from normal operating vertical accelerative force equal 
to 0.35 times the vertical reaction at the suspension assembly of a 
trailer; or the horizontal pivot of the upper coupler (fifth wheel) or 
turntable; or anchoring and support members of a truck, as applicable. 
The vertical reaction must be calculated based on the static weight of 
the fully loaded cargo tank motor vehicle, all structural elements, 
equipment and appurtenances supported by the cargo tank wall.

(iv) Ss = The following shear stresses generated by the 
following static and normal operating loading conditions, in psi:

    (A) The static shear stress resulting from the vertical reaction at 
the suspension assembly of a trailer, and the horizontal pivot of the 
upper coupler (fifth wheel) or turntable; or anchoring and support 
members of a truck, as applicable. The vertical reaction must be 
calculated based on the static weight of the fully loaded cargo tank 
motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall;

[[Page 818]]

    (B) The vertical shear stress generated by a normal operating 
accelerative force equal to 0.35 times the vertical reaction at the 
suspension assembly of a trailer; or the horizontal pivot of the upper 
coupler (fifth wheel) or turntable; or anchoring and support members of 
a truck, as applicable. The vertical reaction must be calculated based 
on the static weight of the fully loaded cargo tank motor vehicle, all 
structural elements, equipment and appurtenances supported by the cargo 
tank wall;
    (C) The lateral shear stress generated by a normal operating lateral 
accelerative force equal to 0.2 times the vertical reaction at each 
suspension assembly of a trailer, applied at the road surface, and as 
transmitted to the cargo tank wall through the suspension assembly of a 
trailer, and the horizontal pivot of the upper coupler (fifth wheel) or 
turntable; or anchoring and support members of a truck, as applicable. 
The vertical reaction must be calculated based on the static weight of 
the fully loaded cargo tank motor vehicle, all structural elements, 
equipment and appurtenances supported by the cargo tank wall; and
    (D) The torsional shear stress generated by the same lateral forces 
as described in paragraph (c)(1)(iv)(C) of this section.
    (2) Extreme dynamic loadings. The following procedure addresses 
stress in the tank shell resulting from extreme dynamic loadings. The 
effective stress (the maximum principal stress at any point) must be 
determined by the following formula:

S = 0.5(Sy + Sx)  [0.25(Sy 
- Sx)2 + Ss2]0.5

Where:

(i) S = effective stress at any given point under a combination of 
static and extreme dynamic loadings that can occur at the same time, in 
psi.
(ii) Sy = circumferential stress generated by MAWP and 
external pressure, when applicable, plus static head, in psi.
(iii) Sx = the following net longitudinal stress generated by 
the following static and extreme dynamic loading conditions, in psi:

    (A) The longitudinal stresses resulting from the MAWP and external 
pressure, when applicable, plus static head, in combination with the 
bending stress generated by the static weight of the fully loaded cargo 
tank motor vehicle, all structural elements, equipment and appurtenances 
supported by the tank wall;
    (B) The tensile or compressive stress resulting from extreme 
longitudinal acceleration or deceleration. In each case the forces 
applied must be 0.7 times the vertical reaction at the suspension 
assembly, applied at the road surface, and as transmitted to the cargo 
tank wall through the suspension assembly of a trailer during 
deceleration; or the horizontal pivot of the truck tractor or converter 
dolly fifth wheel, or the drawbar hinge on the fixed dolly during 
acceleration; or the anchoring and support members of a truck during 
acceleration and deceleration, as applicable. The vertical reaction must 
be calculated based on the static weight of the fully loaded cargo tank 
motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall. The following loadings must be 
included:
    (1) The axial load generated by a decelerative force;
    (2) The bending moment generated by a decelerative force;
    (3) The axial load generated by an accelerative force; and
    (4) The bending moment generated by an accelerative force; and
    (C) The tensile or compressive stress generated by the bending 
moment resulting from an extreme vertical accelerative force equal to 
0.7 times the vertical reaction at the suspension assembly of a trailer, 
and the horizontal pivot of the upper coupler (fifth wheel) or 
turntable; or the anchoring and support members of a truck, as 
applicable. The vertical reaction must be calculated based on the static 
weight of the fully loaded cargo tank motor vehicle, all structural 
elements, equipment and appurtenances supported by the cargo tank wall.

(iv) Ss = The following shear stresses generated by static 
and extreme dynamic loading conditions, in psi:

    (A) The static shear stress resulting from the vertical reaction at 
the suspension assembly of a trailer, and the horizontal pivot of the 
upper coupler

[[Page 819]]

(fifth wheel) or turntable; or anchoring and support members of a truck, 
as applicable. The vertical reaction must be calculated based on the 
static weight of the fully loaded cargo tank motor vehicle, all 
structural elements, equipment and appurtenances supported by the cargo 
tank wall;
    (B) The vertical shear stress generated by an extreme vertical 
accelerative force equal to 0.7 times the vertical reaction at the 
suspension assembly of a trailer, and the horizontal pivot of the upper 
coupler (fifth wheel) or turntable; or anchoring and support members of 
a truck, as applicable. The vertical reaction must be calculated based 
on the static weight of the fully loaded cargo tank motor vehicle, all 
structural elements, equipment and appurtenances supported by the cargo 
tank wall;
    (C) The lateral shear stress generated by an extreme lateral 
accelerative force equal to 0.4 times the vertical reaction at the 
suspension assembly of a trailer, applied at the road surface, and as 
transmitted to the cargo tank wall through the suspension assembly of a 
trailer, and the horizontal pivot of the upper coupler (fifth wheel) or 
turntable; or anchoring and support members of a truck, as applicable. 
The vertical reaction must be calculated based on the static weight of 
the fully loaded cargo tank motor vehicle, all structural elements, 
equipment and appurtenances supported by the cargo tank wall; and
    (D) The torsional shear stress generated by the same lateral forces 
as described in paragraph (c)(2)(iv)(C) of this section.
    (d) In order to account for stresses due to impact in an accident, 
the design calculations for the cargo tank shell and heads must include 
the load resulting from the design pressure in combination with the 
dynamic pressure resulting from a longitudinal deceleration of ``2g''. 
For this loading condition the stress value used may not exceed the 
lesser of the yield strength or 75 percent of the ultimate tensile 
strength of the material of construction. For cargo tanks constructed of 
stainless steel the maximum design stress may not exceed 75 percent of 
the ultimate tensile strength of the type steel used.
    (e) The minimum metal thickness for the shell and heads must be 
0.187 inch for steel and 0.270 inch for aluminum, except for chlorine 
and sulfur dioxide cargo tanks. For a cargo tank used in chlorine or 
sulfur dioxide service, the cargo tank must be made of steel. A 
corrosion allowance of 20 percent or 0.10 inch, whichever is less, must 
be added to the thickness otherwise required for sulfur dioxide and 
chlorine tank material. In chlorine cargo tanks the wall thickness must 
be at least five-eighths inch, including corrosion allowance.
    (f) Where a cargo tank support is attached to any part of the cargo 
tank wall, the stresses imposed on the cargo tank wall must meet the 
requirements in paragraph (a) of this section.
    (g) The design, construction, and installation of an appurtenance to 
the cargo tank must be such that, in the event of its damage or failure, 
the lading retention integrity of the cargo tank will not be adversely 
affected.
    (1) A lightweight attachment, such as a conduit clip, brakeline clip 
or placard holder, must be constructed of a material of lesser strength 
than the cargo tank wall material and may not be more than 72 percent of 
the thickness of the material to which it is attached. The attachment 
may be secured directly to the cargo tank wall if the device is designed 
and installed in such a manner that, if damaged, it will not affect the 
lading retention integrity of the cargo tank. The lightweight attachment 
must be secured to the cargo tank wall by continuous weld or in such a 
manner as to preclude formation of pockets, which may become sites for 
incipient corrosion. Attachments meeting the requirements of this 
paragraph are not authorized for cargo tanks constructed under part UHT 
of the ASME Code.
    (2) Except as prescribed in Sec. 178.337-3(g)(1), the welding of any 
appurtenance of the cargo tank wall must be made by attachment of a 
mounting pad, so that there will be no adverse effect upon the lading 
retention integrity of the cargo tank if any force is applied to the 
appurtenance, from any

[[Page 820]]

direction. The thickness of the mounting pad may not be less than that 
of the shell or head to which it is attached, and not more than 1.5 
times the shell or head thickness. However, a pad with a minimum 
thickness of 0.250 inch may be used when the shell or head thickness is 
over 0.250 inch. If weep holes or tell-tale holes are used, the pad must 
be drilled or punched at its lowest point before it is welded. Each pad 
must:
    (i) Extend at least 2 inches in each direction from any point of 
attachment of an appurtenance;
    (ii) Have rounded corners, or otherwise be shaped in a manner to 
minimize stress concentrations on the shell or head; and
    (iii) Be attached by a continuous weld around the pad, except for a 
small gap at the lowest point for draining, using filler material 
conforming to the recommendations of the manufacturer of the head or 
shell material.
[Amdt. 178-89, 55 FR 37056, Sept. 7, 1990, as amended by Amdt. 178-104, 
59 FR 49135, Sept. 26, 1994; Amdt. 178-105, 60 FR 17401, Apr. 5, 1995; 
Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]



Sec. 178.337-4  Joints.

    (a) Joints shall be as required by the ASME Code, with all 
undercutting in shell and head material repaired as specified therein.
    (b) Welding procedure and welder performance must be in accordance 
with Section IX of the ASME Code. In addition to the essential variables 
named therein, the following must be considered as essential variables: 
Number of passes; thickness of plate; heat input per pass; and 
manufacturer's identification of rod and flux. When fabrication is done 
in accordance with part UHT of the ASME Code, filler material containing 
more than 0.08 percent vanadium must not be used. The number of passes, 
thickness of plate, and heat input per pass may not vary more than 25 
percent from the procedure or welder qualifications. Records of the 
qualifications must be retained for at least 5 years by the cargo tank 
manufacturer and must be made available to duly identified 
representatives of the Department and the owner of the cargo tank.
    (c) All longitudinal shell welds shall be located in the upper half 
of the cargo tank.
    (d) Edge preparation of shell and head components may be by machine 
heat processes, provided such surfaces are remelted in the subsequent 
welding process. Where there will be no subsequent remelting of the 
prepared surface as in a tapered section, the final 0.050 inch of 
material shall be removed by mechanical means.
    (e) The maximum tolerance for misalignment and butting up shall be 
in accordance with the ASME Code.
    (f) Substructures shall be properly fitted before attachment, and 
the welding sequence shall be such as to minimize stresses due to 
shrinkage of welds.
[Order 59-B, 30 FR 580, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-4, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 178.337-5  Bulkheads, baffles and ring stiffeners.

    (a) Not a specification requirement.
    (b) [Reserved]
[Order 59-B, 30 FR 580, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]



Sec. 178.337-6  Closure for manhole.

    (a) Each cargo tank marked or certified after April 21, 1994, must 
be provided with a manhole conforming to paragraph UG-46(g)(1) and other 
applicable requirements of the ASME Code, except that a cargo tank 
constructed of NQT steel having a capacity of 3500 water gallons or less 
may be provided with an inspection opening conforming to paragraph UG-46 
and other applicable requirements of the ASME Code instead of a manhole.
    (b) The manhole assembly of cargo tanks constructed after June 30, 
1979, may not be located on the front head of the cargo tank.
[Amdt. 178-7, 34 FR 18250, Nov. 14, 1969, as amended by Amdt. 178-52, 43 
FR 58820, Dec. 18, 1978; Amdt. 178-89, 54 FR 25017, June 12, 1989; 55 FR 
21038, May 22, 1990; 56 FR 27876, June 17, 1991; 58 FR 12905, March 8, 
1993; Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]

[[Page 821]]



Sec. 178.337-7  Overturn protection.

    (a) See Sec. 178.337-10.
    (b) [Reserved]
[Order 59-B, 30 FR 580, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]



Sec. 178.337-8  Outlets.

    (a) Outlets generally. (1) An opening shall be provided on each 
cargo tank used for the transportation of liquefied materials to afford 
complete drainage.
    (2) With the exception of gauging devices, thermometer wells, and 
pressure relief valves, each opening in a cargo tank intended for use in 
transporting compressed gas (except carbon dioxide, refrigerated liquid) 
must be--
    (i) Closed with a plug, cap or bolted flange;
    (ii) Protected with an excess flow valve on product discharge 
openings or protected with a check valve on product inlet openings; or
    (iii) Fitted with an internal self-closing stop valve as specified 
in Sec. 178.337-11(a).
    (b) Outlets on chlorine cargo tanks must meet the requirements in 
Sec. 178.337-1(c)(2).
[Order 59-B, 30 FR 580, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-8, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 178.337-9  Pressure relief devices, piping, valves, hoses, and fittings.

    (a) Pressure relief devices. (1) See Sec. 173.315(i) of this 
subchapter.
    (2) On cargo tanks for carbon dioxide or nitrous oxide see 
Sec. 173.315 (i) (9) and (10) of this subchapter.
    (3) Each valve must be designed, constructed, and marked for a rated 
pressure not less than the cargo tank design pressure at the temperature 
expected to be encountered.
    (b) Piping, valves, hose, and fittings. (1) The burst pressure of 
all piping, pipe fittings, hose and other pressure parts, except for 
pump seals and pressure relief devices, must be at least 4 times the 
design pressure of the cargo tank. Additionally, the burst pressure may 
not be less than 4 times any higher pressure to which each pipe, pipe 
fitting, hose or other pressure part may be subjected to in service. For 
chlorine service, see paragraph (b)(7) of this section.
    (2) Pipe joints must be threaded, welded or flanged. If threaded 
pipe is used, the pipe and fittings must be Schedule 80 weight or 
heavier. Malleable metals must be used in the construction of valves and 
fittings. Where copper tubing is permitted, joints shall be brazed or be 
of equally strong metal union type. The melting point of the brazing 
material may not be lower than 1000 deg. F. The method of joining tubing 
must not reduce the strength of the tubing, such as by the cutting of 
threads.
    (3) Each hose coupling must be designed for a pressure of at least 
120 percent of the hose design pressure and so that there will be no 
leakage when connected.
    (4) Piping must be protected from damage due to thermal expansion 
and contraction, jarring, and vibration. Slip joints are not authorized 
for this purpose.
    (5) Piping and fittings must be grouped in the smallest practicable 
space and protected from damage as required by Sec. 178.337-10.
    (6) All piping, valves, and fittings on a cargo tank must be proven 
free from leaks. This requirement is met when such piping, valves, and 
fittings have been tested after installation at not less than 80 percent 
of the design pressure marked on the cargo tank. This requirement is 
applicable to hoses used in the cargo tank, except that hoses may be 
tested before or after installation on the cargo tank.
    (7) Chlorine cargo tanks. Cargo tanks used to transport chlorine 
must conform to the following:
    (i) Angle valves on chlorine cargo tank motor vehicles must conform 
to the standards of The Chlorine Institute, Inc., as follows:
    (A) For a cargo tank manufactured before January 1, 1975, to either 
Drawing 104-4, dated May 5, 1958, or Drawing 104-5, dated September 1, 
1972.
    (B) For a cargo tank manufactured on or after January 1, 1975, to 
Drawing 104-5, dated September 1, 1972.
    (ii) Before installation, each angle valve must be tested for 
leakage at not

[[Page 822]]

less than 225 psig using dry air or inert gas.
    (c) Marking inlets and outlets. All cargo tank inlets and outlets, 
except safety relief valves, shall be marked to designate whether they 
communicate with vapor or liquid when the cargo tank is filled to the 
maximum permitted filling density.
    (d) Refrigeration and heating coils. (1) Refrigeration and heating 
coils must be securely anchored with provisions for thermal expansion. 
The coils must be pressure tested externally to at least the cargo tank 
test pressure, and internally to either the tank test pressure or twice 
the working pressure of the heating/refrigeration system, whichever is 
higher. A cargo tank may not be placed in service if any leakage occurs 
or other evidence of damage is found. The refrigerant or heating medium 
to be circulated through the coils must not be capable of causing any 
adverse chemical reaction with the cargo tank lading in the event of 
leakage. The unit furnishing refrigeration may be mounted on the motor 
vehicle.
    (2) Where any liquid susceptible to freezing, or the vapor of any 
such liquid, is used for heating or refrigeration, the heating or 
refrigeration system shall be arranged to permit complete drainage.
[Order 59-B, 30 FR 580, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-9, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



178.337-10  Protection of fittings.

    (a) All valves, fittings, safety relief devices, and other 
accessories to the tank proper shall be protected in accordance with 
paragraph (b) of this section against such damage as could be caused by 
collision with other vehicles or objects, jackknifing and overturning. 
In addition, safety relief valves shall be so protected that in the 
event of overturn of the vehicle on to a hard surface, their opening 
will not be prevented and their discharge will not be restricted.
    (b) The protective devices or housing must be designed to withstand 
static loading in any direction equal to twice the weight of the tank 
and attachments when filled with the lading, using a safety factor of 
not less than four, based on the ultimate strength of the material to be 
used, without damage to the fittings protected, and must be made of 
metal at least \3/16\-inch thick.
    (c) For chlorine tanks. There shall be a protective housing and 
manway cover to permit the use of standard emergency kits for 
controlling leaks in fittings on the dome cover plate. The housing and 
manway cover must conform to the Chlorine Institute's standards as 
follows:
    (1) Tanks manufactured on or before December 31, 1974: Dwg. 137-1, 
dated November 7, 1962, or Dwg. 137-2, dated September 1, 1971.
    (2) Tanks manufactured on or after January 1, 1975: Dwg. 137-2, 
dated September 1, 1971.
    (d) Each cargo tank shall be provided with at least one rear bumper 
designed to protect the tank and piping in the event of a rear end 
collision and minimize the possibility of any part of the colliding 
vehicle striking the tank. The design shall be such as to transmit the 
force of a rear end collision in a horizontal line to the chassis of the 
vehicle. The bumper shall be designed to withstand the impact of the 
fully loaded vehicle with a deceleration of 2 ``g'', using a safety 
factor of four based on the ultimate strength of the bumper material. 
The bumpers shall conform dimensionally to Sec. 393.86, chapter III of 
this title.
[Order 59-B, 30 FR 581, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-10, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 178.337-11  Emergency discharge control.

    (a) Excess flow valves, back flow check valves and stop valves. (1) 
When required by Sec. 178.337-8(a)(2):
    (i) Each internal self-closing stop valve and excess flow valve must 
automatically close if any of its attachments are sheared off or if any 
attached hoses or piping are separated.
    (ii) Each self-closing stop valve, excess flow valve, or check valve 
must be located inside the cargo tank or inside

[[Page 823]]

a welded nozzle which is an integral part of the cargo tank. The valve 
seat must be located inside the cargo tank or within a welded flange, 
its companion flange, a nozzle or coupling. The installation must be 
made so as to assure that any undue strain which causes a failure 
requiring the functioning of the valve will not impair the operation of 
the valve.
    (iii) All parts of the valve inside the cargo tank, or within a 
nozzle, flange, companion flange, or coupling must be made of material 
not subject to corrosion or other deterioration in the presence of the 
lading.
    (iv) Any liquid level gauging device must be constructed so that the 
outward flow of the cargo tank lading does not exceed the flow through a 
0.060-inch diameter opening.
    (v) Each excess flow valve must close automatically at the rated 
flow of gas or liquid as specified by the valve manufacturer. The flow 
rating of the piping, fittings, valves, and hoses on each side of the 
excess flow valve must be at least equal to that of the excess flow 
valve. If branching or other restrictions are incorporated in the system 
so that the flow rating is reduced to less than that of the excess flow 
valve at the cargo tank, additional excess flow valves must be located 
where the flow rates are reduced. The additional valves must have 
sufficient flow rating so that total capacity equals or exceeds the 
excess flow valve capacity.
    (vi) An excess flow valve may be designed with a bypass, not to 
exceed a 0.040-inch diameter opening, to allow equalization of 
pressures.
    (2) Except for a cargo tank marked ``For carbon dioxide only'', each 
liquid or vapor discharge opening in a cargo tank must be equipped with 
a remotely controlled internal self-closing stop valve. This requirement 
does not apply to a cargo tank motor vehicle certified before January 1, 
1995, unless intended for use to transport a flammable liquid, flammable 
gas, hydrogen chloride, refrigerated liquid, or anhydrous ammonia. For 
cargo tanks intended for use in chlorine service, see paragraph (a)(4) 
of this section.
    (i) On a cargo tank over 3,500 gallons water capacity, each internal 
self-closing stop-valve must be provided with remote means of automatic 
closure, both mechanical and thermal, that are installed at the ends of 
the cargo tank in at least two, diagonally opposite locations. Cable 
linkage between closures and remote operators must be corrosion 
resistant and effective in all types of environment and weather. If the 
loading/unloading connection at the cargo tank is not in the general 
vicinity of one of the two locations specified above, one additional 
fusible element must be installed so that heat from a fire in the 
loading/unloading connection area will activate the emergency control 
system. Fusible elements must not have a melting point exceeding 
250 deg. F. The loading/unloading connection area is where hoses or hose 
reels are connected to the permanent metal piping.
    (ii) On a cargo tank of 3,500 gallons water capacity or less, each 
internal self-closing stop-valve must be provided with at least one 
remote means of automatic closure, which may be mechanical, installed on 
the end of the cargo tank furthest away from the loading/unloading 
connection area. The loading/unloading connection area is where hoses or 
hose reels are connected to the permanent metal piping.
    (3) Unless otherwise specified in paragraph (c) of this section, 
each outlet of a cargo tank intended for the transportation of a 
nonflammable gas (except carbon dioxide, refrigerated liquid) must be 
provided with an internal self-closing stop-valve or an automatic excess 
flow valve.
    (4) Excess flow valves on chlorine cargo tank motor vehicles must 
conform to the standards of The Chlorine Institute, Inc., as follows:
    (i) For a cargo tank manufactured before January 1, 1975:
    (A) A valve conforming to either Drawing 101-4, dated May 16, 1969, 
or Drawing 101-6, dated September 1, 1973, must be installed under each 
liquid angle valve.
    (B) A valve conforming to either Drawing 106-3, dated May 16, 1969, 
or Drawing 106-5, dated September 1, 1973, must be installed under each 
gas angle valve.
    (ii) For a cargo tank manufactured on or after January 1, 1975:

[[Page 824]]

    (A) A valve conforming to Drawing 101-6, dated September 1, 1973, 
must be installed under each liquid angle valve.
    (B) A valve conforming to Drawing 106-5, dated September 1, 1973, 
must be installed under each gas angle valve.
    (b) Shut-off valves. Each filling and discharge line must be 
provided with a manual stop-valve located as close to the cargo tank as 
practicable. However, if an internal self-closing stop-valve is used, 
the manual stop valve must be located in the line between the self-
closing stop-valve and the hose connection. A single so-called ``stop-
check'' or excess flow valve may not be used to satisfy the requirements 
of this paragraph, except as provided in paragraph (c) of this section.
    (c) The requirements in paragraph (a) of this section, do not apply 
to:
    (1) A vapor or liquid discharge opening of less than 1\1/4\ inch NPT 
equipped with an excess flow valve together with a manually operated 
external stop valve, in place of a remotely controlled internal self-
closing stop-valve.
    (2) A vapor or liquid discharge opening of 1\1/4\ inch NPT equipped 
with an excess flow valve together with a manually operated external 
stop valve installed before October 1, 1984.
    (3) An engine fuel line, on a truck-mounted cargo tank, of not over 
\3/4\ inch NPT equipped with a valve having an integral excess flow 
valve.
[Amdt. 178-89, 54 FR 25017, June 12, 1989, as amended at 55 FR 37057, 
Sept. 7, 1990; Amdt. 178-97, 57 FR 45465, Oct. 1, 1992; Amdt. 178-104, 
59 FR 49135, Sept. 26, 1994; Amdt. 178-105, 59 FR 55173, Nov. 3, 1994; 
Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]



Sec. 178.337-12  Shear section.

    (a) Design or installation of valves specified in Sec. 178.337-
8(a)(2) shall provide adjacent to and outboard of such valves a section 
which will break under undue strain.
    (b) [Reserved]
[Order 59-B, 30 FR 581, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]



Sec. 178.337-13  Supporting and anchoring.

    (a) A cargo tank that is not permanently attached to or integral 
with a vehicle chassis must be secured by turnbuckles or equally 
efficient securing devices for drawing the cargo tank down tight on the 
frame. Anchors, stops, or other means must be provided to prevent 
relative motion between the cargo tank and the vehicle chassis when the 
vehicle is in operation.
    (b) A cargo tank motor vehicle designed and constructed so that the 
cargo tank constitutes in whole or in part the stress member used in 
place of a frame must have the cargo tank supported by external cradles. 
A cargo tank mounted on a frame must be supported by external cradles or 
longitudinal members. The cradles, where used, must subtend at least 120 
degrees of the shell circumference. The design calculations for the 
supports must include beam stress, shear stress, torsion stress, bending 
moment, and acceleration stress, for the loaded cargo tank motor vehicle 
as a unit, using a factor of safety of 4, based on the ultimate strength 
of the material and on a 2 ``g'' longitudinal and lateral loading and 3 
times the static weight in vertical loading (see appendix G of the ASME 
Code).
    (c) Where any cargo tank support is attached to any part of a cargo 
tank head, the stresses imposed upon the head shall be provided for as 
required in paragraph (b) of this section.
    (d) No cargo tank support or bumper may be welded directly to the 
cargo tank. All supports and bumpers shall be attached by means of pads 
of the same material as the cargo tank. The pad thickness shall be no 
less than \1/4\ inch, or the thickness of the shell material if less, 
and no greater than the shell material. Each pad shall extend at least 4 
times its thickness, in each direction, beyond the weld attaching the 
support or bumper. Each pad shall be preformed to an inside radius no 
greater than the outside radius of the cargo tank at the place of 
attachment. Each pad corner shall be rounded to a radius at least one-
fourth the width of the pad, and no greater than one-half the width of 
the pad. Weep holes and telltale holes, if used shall be drilled or 
punched before the pads are attached to the cargo tank. Each pad shall 
be attached to the cargo tank by continuous

[[Page 825]]

fillet welding using filler material having properties conforming to the 
recommendations of the maker of the shell and head material.
[Order 59-B, 30 FR 581, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967, and amended by Amdt. 178-29, 38 FR 27598, Oct. 5, 1973; Amdt. 
178-85, 51 FR 5977, Feb. 18, 1986; Amdt. 178-88, 52 FR 13046, Apr. 20, 
1987; Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]



Sec. 178.337-14  Gauging devices.

    (a) Liquid level gauging devices. See Sec. 173.315(h) of this 
subchapter.
    (b) Pressure gauges. (1) See Sec. 173.315(h) of this subchapter.
    (2) Each cargo tank used in carbon dioxide, refrigerated liquid or 
nitrous oxide, refrigerated liquid service must be provided with a 
suitable pressure gauge. A shut-off valve must be installed between the 
pressure gauge and the cargo tank.
    (c) Orifices. See Sec. 173.315(h) (3) and (4) of this subchapter.
[Amdt. 178-29, 38 FR 27599, Oct. 5, 1973, as amended by Amdt. 178-89, 54 
FR 25018, June 12, 1989; Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]



Sec. 178.337-15  Pumps and compressors.

    (a) Liquid pumps or gas compressors, if used, must be of suitable 
design, adequately protected against breakage by collision, and kept in 
good condition. They may be driven by motor vehicle power take-off or 
other mechanical, electrical, or hydraulic means. Unless they are of the 
centrifugal type, they shall be equipped with suitable pressure actuated 
by-pass valves permitting flow from discharge to suction or to the cargo 
tank.
    (b) A liquid chlorine pump may not be installed on a cargo tank 
intended for the transportation of chlorine.
[Amdt. 178-89, 54 FR 25018, June 12, 1989, as amended by Amdt. 178-118, 
61 FR 51340, Oct. 1, 1996]



Sec. 178.337-16  Testing.

    (a) Inspection and tests. Inspection of materials of construction of 
the cargo tank and its appurtenances and original test and inspection of 
the finished cargo tank and its appurtenances must be as required by the 
ASME Code and as further required by this specification except that for 
cargo tanks constructed in accordance with part UHT of the ASME Code the 
original test pressure must be at least twice the cargo tank design 
pressure.
    (b) Weld testing and inspection. (1) Each cargo tank constructed in 
accordance with part UHT of the ASME Code must be subjected, after 
postweld heat treatment and hydrostatic tests, to a wet fluorescent 
magnetic particle inspection to be made on all welds in or on the cargo 
tank shell and heads both inside and out. The method of inspection must 
conform to Appendix VI of the ASME Code, paragraph UA-70 through UA-72 
except that permanent magnets shall not be used.
    (2) On cargo tanks of over 3,500 gallons water capacity other than 
those described in paragraph (b)(1) of this section unless fully 
radiographed, a test must be made of all welds in or on the shell and 
heads both inside and outside by either the wet fluorescent magnetic 
particle method conforming to appendix VI of the ASME Code, liquid dye 
penetrant method, or ultrasonic testing in accordance with appendix U of 
the ASME Code. Permanent magnets must not be used to perform the 
magnetic particle inspection.
    (c) All defects found shall be repaired, the cargo tanks shall then 
again be postweld heat treated, if such heat treatment was previously 
performed, and the repaired areas shall again be tested.
[Order 59-B, 30 FR 582, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967, and amended by Amdt. 178-7, 34 FR 18250, Nov. 14, 1969; Amdt. 
178-99, 58 FR 51534, Oct. 1, 1993; Amdt. 178-118, 61 FR 51340, Oct. 1, 
1996]



Sec. 178.337-17  Marking.

    (a) Metal identification plate. Each cargo tank built after July 1, 
1985 shall have a corrosion resistant metal plate permanently affixed by 
brazing or welding around its perimeter, on the left side (on the right 
side prior to July 1, 1985) near the front, in a place readily 
accessible for inspection. It must be maintained in a legible condition. 
On multi-cargo tank motor vehicles plates shall be attached to each 
cargo tank at the front in a place readily accessible for inspection. 
Each insulated cargo tank shall have an additional plate, as described, 
affixed to the jacket in the

[[Page 826]]

location specified. Neither the plate itself nor the means of attachment 
to the cargo tank or jacket may be subject to attack by the cargo tank 
contents. If the plate is attached directly to the cargo tank by welding 
it shall be welded thereto before the cargo tank is postweld heat 
treated. The plate shall be plainly marked by stamping, embossing, or 
other means of forming letters into the metal of the plate, with the 
following information in addition to that required by the ASME Code, in 
characters at least \3/8\ inch high:

Vehicle manufacturer.
Vehicle manufacturer's serial number.
D.O.T. specification number MC-331.
Vessel material specification number.
Water capacity in pounds (see Note 1).
Original test date.

    Note 1: See Sec. 173.315(a) of this chapter regarding water 
capacity.

    (b) Each cargo tank must also be marked as required by Sec. 172.328 
of this subchapter.
[Order 59-B, 30 FR 582, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-17, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 178.337-18  Certification.

    (a) At or before the time of delivery, the cargo tank motor vehicle 
manufacturer must supply and the owner must obtain, a cargo tank motor 
vehicle manufacturer's data report as required by the ASME Code, and a 
certificate stating that the completed cargo tank motor vehicle conforms 
in all respects to Specification MC 331 and the ASME Code. The 
registration numbers of the manufacturer, the Design Certifying 
Engineer, and the Registered Inspector, as appropriate, must appear on 
the certificates (see subpart F, part 107 in subchapter A of this 
chapter).
    (1) For each design type, the certificate must be signed by a 
responsible official of the manufacturer and a Design Certifying 
Engineer; and
    (2) For each cargo tank motor vehicle, the certificate must be 
signed by a responsible official of the manufacturer and a Registered 
Inspector.
    (3) The certificate must state whether or not it includes 
certification that all valves, piping, and protective devices conform to 
the requirements of the specification. If it does not so certify, the 
installer of any such valve, piping, or device shall supply and the 
owner shall obtain a certificate asserting complete compliance with 
these specifications for such devices. The certificate, or certificates, 
will include sufficient sketches, drawings, and other information to 
indicate the location, make, model, and size of each valve and the 
arrangement of all piping associated with the cargo tank.
    (4) The certificate must contain a statement indicating whether or 
not the cargo tank was postweld heat treated for anhydrous ammonia as 
specified in Sec. 178.337-1(f).
    (b) The owner shall retain the copy of the data report and 
certificates and related papers in his files throughout his ownership of 
the cargo tank motor vehicle and for at least one year thereafter; and 
in the event of change in ownership, retention by the prior owner of 
nonfading photographically reproduced copies will be deemed to satisfy 
this requirement. Each motor carrier using the cargo tank motor vehicle, 
if not the owner thereof, shall obtain a copy of the data report and 
certificate and retain them in his files during the time he uses the 
cargo tank motor vehicle and for at least one year thereafter.
[Order 59-B, 30 FR 583, Jan. 16, 1965. Redesignated at 32 FR 5606, Apr. 
5, 1967]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.337-18, see the List of CFR Sections Affected in the Finding 
Aids section of this volume.



Sec. 178.338  Specification MC-338; insulated cargo tank.



Sec. 178.338-1  General requirements.

    (a) For the purposes of this section--
    (1) Design pressure means the ``maximum allowable working pressure'' 
as used in the ASME Code, and is the gauge pressure at the top of the 
tank.
    (2) Design service temperature means the coldest temperature for 
which the tank is suitable (see Secs. 173.318 (a)(1) and (f) of this 
subchapter).
    (b) Each cargo tank must consist of a suitably supported welded 
inner vessel

[[Page 827]]

enclosed within an outer shell or jacket, with insulation between the 
inner vessel and outer shell or jacket, and having piping, valves, 
supports and other appurtenances as specified in this subchapter. For 
the purpose of this specification, tank means inner vessel and jacket 
means either the outer shell or insulation cover.
    (c) Each tank must be designed and constructed to meet the 
requirements of the ASME Code.
    (1) The design pressure of the tank must be at least 25.3 psig but 
not more than 500 psig. To determine the required thicknesses of the 
parts of the tank, the static head of the lading shall be added to the 
design pressure. If the jacket is evacuated, the tank must be designed 
for a pressure of 14.7 psi, plus the lading static head, higher than its 
design pressure. The jacket must be designed in accordance with 
paragraph (e) or (f) of this section, as appropriate.
    (2) The design service temperature of the tank, piping and valves 
may not be warmer than the liquefaction temperature at one atmosphere of 
the lading to be transported (see Secs. 173.318 (a)(1) and (f) of this 
subchapter).
    (3) Design and construction details of the tank interior may not 
allow collection and retention of cleaning materials or contaminants. To 
preclude the entrapment of foreign material, the design and construction 
of the tank must allow washing of all interior surfaces by the normal 
surging of the lading during transportation.
    (d) The exterior surface of the tank must be insulated with a 
material compatible with the lading.
    (1) Each cargo tank must have an insulation system that will prevent 
the tank pressure from exceeding the pressure relief valve set pressure 
within the specified holding time when the tank is loaded with the 
specific cryogenic liquid at the design conditions of--
    (i) The specified temperature and pressure of the cryogenic liquid, 
and
    (ii) The exposure of the filled cargo tank to an average ambient 
temperature of 85 deg. F.
    (2) For a cargo tank used to transport oxygen, the insulation may 
not sustain combustion in a 99.5 percent oxygen atmosphere at 
atmospheric pressure when contacted with a continuously heated glowing 
platinum wire. The cargo tank must be marked in accordance with 
Sec. 178.338-18(b)(7).
    (3) Each vacuum-insulated cargo tank must be provided with a 
connection for a vacuum gauge to indicate the absolute pressure within 
the insulation space.
    (e) The insulation must be completely covered by a metal jacket. The 
jacket or the insulation must be so constructed and sealed as to prevent 
moisture from coming into contact with the insulation (see 
Sec. 173.318(a)(3) of this subchapter). Minimum metal thicknesses are as 
follows:

                                                                        
------------------------------------------------------------------------
                                             Jacket         Jacket not  
                                            evacuated       evacuated   
               Type metal               --------------------------------
                                          Gauge  Inches   Gauge   Inches
------------------------------------------------------------------------
Stainless steel........................      18  0.0428      22   0.0269
Low carbon mild steel..................      12  0.0946      14   0.0677
Aluminum...............................  ......  0.125   ......   0.1000
------------------------------------------------------------------------

    (f) An evacuated jacket must be in compliance with the following 
requirements:
    (1) The jacket must be designed to sustain a minimum critical 
collapsing pressure of 30 psi.
    (2) If the jacket also supports additional loads, such as the weight 
of the tank and lading, the combined stress, computed according to the 
formula in Sec. 178.338-3(b), may not exceed 25 percent of the minimum 
specified tensile strength.
[Amdt. 178-77, 48 FR 27703, June 16, 1983, as amended at 49 FR 24316, 
June 12, 1984; Amdt. 178-104, 59 FR 49135, Sept. 26, 1994]



Sec. 178.338-2  Material.

    (a) All material used in the construction of a tank and its 
appurtenances that may come in contact with the lading must be 
compatible with the lading to be transported. All material used for tank 
pressure parts must conform to the requirements of the ASME Code. All 
material used for evacuated jacket pressure parts must conform to the 
chemistry and steelmaking practices of one of the material 
specifications of Section II of the ASME Code or the following ASTM 
Specifications: A 242, A 441, A 514, A 572, A 588, A 606, A 607, A 633, 
A 715.
    (b) All tie-rods, mountings, and other appurtenances within the 
jacket and

[[Page 828]]

all piping, fittings and valves must be of material suitable for use at 
the lowest temperature to be encountered.
    (c) Impact tests are required on all tank materials, except 
aluminum, and must be performed using the procedure prescribed in the 
ASME Code.
    (d) The direction of final rolling of the shell material must be the 
circumferential orientation of the tank shell.
    (e) Each tank constructed in accordance with part UHT of the ASME 
Code must be postweld heat treated as a unit after completion of all 
welds to the shell and heads. Other tanks must be postweld heat treated 
as required by the ASME Code. For all tanks the method must be as 
prescribed in the ASME Code. Welded attachments to pads may be made 
after postweld heat treatment.
    (f) The fabricator shall record the heat and slab numbers and the 
certified Charpy impact values of each plate used in the tank on a 
sketch showing the location of each plate in the shell and heads of the 
tank. A copy of the sketch must be provided to the owner of the cargo 
tank and a copy must be retained by the fabricator for at least five 
years and made available, upon request, to any duly identified 
representative of the Department.

(Approved by the Office of Management and Budget under control number 
2137-0017)

[Amdt. 178-77, 48 FR 27703 and 27713, June 16, 1983, as amended at 49 FR 
24316, June 12, 1984]



Sec. 178.338-3  Structural integrity.

    (a) General requirements and acceptance criteria. (1) Except as 
permitted in paragraph (d) of this section, the maximum calculated 
design stress at any point in the tank may not exceed the lesser of the 
maximum allowable stress value prescribed in section VIII of the ASME 
Code, or 25 percent of the tensile strength of the material used.
    (2) The relevant physical properties of the materials used in each 
tank may be established either by a certified test report from the 
material manufacturer or by testing in conformance with a recognized 
national standard. In either case, the ultimate tensile strength of the 
material used in the design may not exceed 120 percent of the minimum 
ultimate tensile strength specified in either the ASME Code or the ASTM 
standard to which the material is manufactured.
    (3) The maximum design stress at any point in the tank must be 
calculated separately for the loading conditions described in paragraphs 
(b), (c), and (d) of this section. Alternate test or analytical methods, 
or a combination thereof, may be used in lieu of the procedures 
described in paragraphs (b), (c), and (d) of this section, if the 
methods are accurate and verifiable.
    (4) Corrosion allowance material may not be included to satisfy any 
of the design calculation requirements of this section.
    (b) The static design and construction of each tank must be in 
accordance with section VIII of the ASME Code. The tank design must 
include calculation of stresses due to design pressure, the weight of 
lading, the weight of structures supported by the tank wall, and the 
effect of temperature gradients resulting from lading and ambient 
temperature extremes. When dissimilar materials are used, their thermal 
coefficients must be used in calculation of the thermal stresses. Stress 
concentrations in tension, bending and torsion which occur at pads, 
cradles, or other supports must be considered in accordance with 
appendix G of the ASME Code.
    (c) Stresses resulting from static and dynamic loadings, or a 
combination thereof, are not uniform throughout the cargo tank motor 
vehicle. The following is a simplified procedure for calculating the 
effective stress in the tank resulting from static and dynamic loadings. 
The effective stress (the maximum principal stress at any point) must be 
determined by the following formula:

S=0.5 
          (Sy+Sx)(0.25(Sy-Sx
          )2+Ss2) 0.5
Where:

    (1) S= effective stress at any given point under the most severe 
combination of static and dynamic loadings that can occur at the same 
time, in psi.
    (2) Sy=circumferential stress generated by internal and 
external pressure when applicable, in psi.
    (3) Sx=the net longitudinal stress, in psi, generated by 
the following loading conditions:
    (i) The longitudinal tensile stress generated by internal pressure;

[[Page 829]]

    (ii) The tensile or compressive stress generated by the axial load 
resulting from a decelerative force applied independently to each 
suspension assembly at the road surface using applicable static loadings 
specified in Sec. 178.338-13 (b) and (c);
    (iii) The tensile or compressive stress generated by the bending 
moment resulting from a decelerative force applied independently to each 
suspension assembly at the road surface using applicable static loadings 
specified in Sec. 178.338-13 (b) and (c);
    (iv) The tensile or compressive stress generated by the axial load 
resulting from an accelerative force applied to the horizontal pivot of 
the fifth wheel supporting the vehicle using applicable static loadings 
specified in Sec. 178.338-13 (b) and (c);
    (v) The tensile or compressive stress generated by the bending 
moment resulting from an accelerative force applied to the horizontal 
pivot of the fifth wheel supporting the vehicle using applicable static 
loadings specified in Sec. 178.338-13 (b) and (c); and
    (vi) The tensile or compressive stress generated by a bending moment 
produced by a vertical force using applicable static loadings specified 
in Sec. 178.338-13 (b) and (c).
    (4) Ss=The following shear stresses that apply, in psi,: 
The vectorial sum of the applicable shear stresses in the plane under 
consideration, including direct shear generated by the static vertical 
loading; direct lateral and torsional shear generated by a lateral 
accelerative force applied at the road surface, using applicable static 
loads specified in Sec. 178.338-13 (b) and (c)

    (d) In order to account for stresses due to impact in an accident, 
the design calculations for the tank shell and heads must include the 
load resulting from the design pressure in combination with the dynamic 
pressure resulting from a longitudinal deceleration of ``2g''. For this 
loading condition the stress value used may not exceed the lesser of the 
yield strength or 75 percent of the ultimate tensile strength of the 
material of construction. For a cargo tank constructed of stainless 
steel, the maximum design stress may not exceed 75 percent of the 
ultimate tensile strength of the type steel used.
    (e) The minimum thickness of the shell or heads of the tank must be 
0.187 inch for steel and 0.270 inch for aluminum. However, the minimum 
thickness for steel may be 0.110 inches provided the cargo tank is:
    (1) Vacuum insulated, or
    (2) Double walled with a load bearing jacket designed to carry a 
proportionate amount of structural loads prescribed in this section.
    (f) Where a tank support is attached to any part of the tank wall, 
the stresses imposed on the tank wall must meet the requirements in 
paragraph (a) of this section.
    (g) The design, construction, and installation of an appurtenance to 
the cargo tank or jacket must be such that, in the event of its damage 
or failure, the lading retention integrity of the tank will not be 
adversely affected.
    (1) A lightweight attachment, such as a conduit clip, brakeline clip 
or placard holder, must be constructed of a material of lesser strength 
than the cargo tank wall or jacket material and may not be more than 72 
percent of the thickness of the material to which it is attached. The 
attachment may be secured directly to the cargo tank wall or jacket if 
the device is designed and installed in such a manner that, if damaged, 
it will not affect the lading retention integrity of the tank. The 
lightweight attachment must be secured to the cargo tank wall or jacket 
by continuous weld or in such a manner as to preclude formation of 
pockets, which may become sites for incipient corrosion. Attachments 
conforming with this paragraph are not authorized for cargo tanks 
constructed under part UHT of the ASME Code.
    (2) Except as prescribed in Sec. 178.338-3(g)(1), the welding of any 
appurtenance to the cargo tank wall or jacket must be made by attachment 
of a mounting pad, so that there will be no adverse affect upon the 
lading retention integrity of the tank if any force is applied to the 
appurtenance, from any direction. The thickness of the mounting pad may 
not be less than that of the shell or head to which it is attached, and 
not more than 1.5 times the shell or head thickness. However, a pad with 
a minimum thickness of 0.187 inch may be used when the shell or head 
thickness is over 0.187 inch. If weep holes or tell tale holes are used, 
the pad must be drilled or punched at its lowest point before it is 
welded. Each pad must--
    (i) Extend at least 2 inches in each direction from any point of 
attachment of an appurtenance;

[[Page 830]]

    (ii) Be attached by a continuous weld around the pad except for a 
small gap at the lowest point for draining.
[Amdt. 178-89, 55 FR 37057, Sept. 7, 1990, as amended by Amdt. 178-89, 
56 FR 27876, June 17, 1991; 56 FR 46354, Sept. 11, 1991]



Sec. 178.338-4  Joints.

    (a) All joints in the tank, and in the jacket if evacuated, must be 
as prescribed in the ASME Code, except that a butt weld with one plate 
edge offset is not authorized.
    (b) Welding procedure and welder performance tests must be made in 
accordance with Section IX of the ASME Code. Records of the 
qualification must be retained by the tank manufacturer for at least 
five years and must be made available, upon request, to any duly 
identified representative of the Department, or the owner of the cargo 
tank.
    (c) All longitudinal welds in tanks and load bearing jackets must be 
located so as not to intersect nozzles or supports other than load rings 
and stiffening rings.
    (d) Substructures must be properly fitted before attachment and the 
welding sequence must minimize stresses due to shrinkage of welds.
    (e) Filler material containing more than 0.05 percent vanadium may 
not be used with quenched and tempered steel.
    (f) All tank nozzle-to-shell and nozzle-to-head welds must be full 
penetration welds.

(Approved by the Office of Management and Budget under control number 
2137-0017)

[Amdt. 178-77, 48 FR 27704 and 27713, June 16, 1983, as amended at 49 FR 
24316, June 12, 1984]



Sec. 178.338-5  Stiffening rings.

    (a) A tank is not required to be provided with stiffening rings, 
except as prescribed in the ASME Code.
    (b) If a jacket is evacuated, it must be constructed in compliance 
with Sec. 178.338-1(f). Stiffening rings may be used to meet these 
requirements.
[Amdt. 178-77, 48 FR 27704, June 16, 1983]



Sec. 178.338-6  Manholes.

    (a) Each tank in oxygen service must be provided with a manhole as 
prescribed in the ASME Code.
    (b) Each tank having a manhole must be provided with a means of 
entrance and exit through the jacket, or the jacket must be marked to 
indicate the manway location on the tank.
    (c) A manhole with a bolted closure may not be located on the front 
head of the tank.
[Amdt. 178-77, 48 FR 27704, June 16, 1983, as amended at 49 FR 24316, 
June 12, 1984]



Sec. 178.338-7  Openings.

    (a) The inlet to the liquid product discharge opening of each tank 
intended for flammable ladings must be at the bottom centerline of the 
tank.
    (b) If the leakage of a single valve, except a pressure relief 
valve, pressure control valve, full trycock or gas phase manual vent 
valve, would permit loss of flammable material, an additional closure 
that is leak tight at the tank design pressure must be provided outboard 
of such valve.
[Amdt. 178-77, 48 FR 27704, June 16, 1983]



Sec. 178.338-8  Pressure relief devices, piping, valves, and fittings.

    (a) Pressure relief devices. Each tank pressure relief device must 
be designed, constructed, and marked in accordance with Sec. 173.318(b) 
of this subchapter.
    (b) Piping, valves, and fittings. (1) The burst pressure of all 
piping, pipe fittings, hoses and other pressure parts, except for pump 
seals and pressure relief devices, must be at least 4 times the design 
pressure of the tank. Additionally, the burst pressure may not be less 
than 4 times any higher pressure to which each pipe, pipe fitting, hose 
or other pressure part may be subjected to in service.
    (2) Pipe joints must be threaded, welded or flanged. If threaded 
pipe is used, the pipe and fittings must be Schedule 80 weight or 
heavier. Malleable metals must be used in the construction of valves and 
fittings. Where copper tubing is permitted, joints shall be brazed or be 
of equally strong metal union type. The melting point of the brazing 
materials may not be lower than 1000  deg.F. The method of joining 
tubing may not reduce the strength of the tubing, such as by the cutting 
of threads.

[[Page 831]]

    (3) Each hose coupling must be designed for a pressure of at least 
120 percent of the hose design pressure and so that there will be no 
leakage when connected.
    (4) Piping must be protected from damage due to thermal expansion 
and contraction, jarring, and vibration. Slip joints are not authorized 
for this purpose.
    (5) All piping, valves and fittings on a cargo tank must be proved 
free from leaks. This requirement is met when such piping, valves, and 
fittings have been tested after installation with gas or air and proved 
leak tight at not less than the design pressure marked on the cargo 
tank. This requirement is applicable to all hoses used in a cargo tank, 
except that hose may be tested before or after installation on the tank.
    (6) Each valve must be suitable for the tank design pressure at the 
tank design service temperature.
    (7) All fittings must be rated for the maximum tank pressure and 
suitable for the coldest temperature to which they will be subjected in 
actual service.
    (8) All piping, valves, and fittings must be grouped in the smallest 
practicable space and protected from damage as required by Sec. 178.338-
10.
    (9) When a pressure-building coil is used on a tank designed to 
handle oxygen or flammable ladings, the vapor connection to that coil 
must be provided with a valve or check valve as close to the tank shell 
as practicable to prevent the loss of vapor from the tank in case of 
damage to the coil. The liquid connection to that coil must also be 
provided with a valve.
[Amdt. 178-77, 48 FR 27704, June 16, 1983, as amended by Amdt. 178-89, 
54 FR 25019, June 12, 1989]



Sec. 178.338-9  Holding time.

    (a) ``Holding time'' is the time, as determined by testing, that 
will elapse from loading until the pressure of the contents, under 
equilibrium conditions, reaches the level of the lowest pressure control 
valve or pressure relief valve setting.
    (b) Holding time test. (1) The test to determine holding time must 
be performed by charging the tank with a cryogenic liquid having a 
boiling point, at a pressure of one atmosphere, absolute, no lower than 
the design service temperature of the tank. The tank must be charged to 
its maximum permitted filling density with that liquid and stabilized to 
the lowest practical pressure, which must be equal to or less than the 
pressure to be used for loading. The cargo tank together with its 
contents must then be exposed to ambient temperature.
    (2) The tank pressure and ambient temperature must be recorded at 3-
hour intervals until the pressure level of the contents reaches the set-
to-discharge pressure of the pressure control valve or pressure relief 
valve with the lowest setting. This total time lapse in hours represents 
the measured holding time at the actual average ambient temperature. 
This measured holding time for the test cryogenic liquid must be 
adjusted to an equivalent holding time for each cryogenic liquid that is 
to be identified on or adjacent to the specification plate, at an 
average ambient temperature of 85 deg.F. This is the rated holding time 
(RHT). The marked rated holding time (MRHT) displayed on or adjacent to 
the specification plate (see Sec. 178.338-18(b)(9)) may not exceed this 
RHT.
    (c) Optional test regimen. (1) If more than one cargo tank is made 
to the same design, only one cargo tank must be subjected to the full 
holding time test at the time of manufacture. However, each subsequent 
cargo tank made to the same design must be performance tested during its 
first trip. The holding time determined in this test may not be less 
than 90 percent of the marked rated holding time. This test must be 
performed in accordance with Secs. 173.318(g)(3) and 177.840(h) of this 
subchapter, regardless of the classification of the cryogenic liquid.
    (2) Same design. The term ``same design'' as used in this section 
means cargo tanks made to the same design type. See Sec. 178.320(a)(3) 
for definition of ``design type''.
    (3) For a cargo tank used in nonflammable cryogenic liquid service, 
in place of the holding time tests prescribed in paragraph (b) of this 
section, the marked rated holding time (MRHT) may be determined as 
follows:

[[Page 832]]

    (i) While the cargo tank is stationary, the heat transfer rate must 
be determined by measuring the normal evaporation rate (NER) of the test 
cryogenic liquid (preferably the lading, where feasible) maintained at 
approximately one atmosphere. The calculated heat transfer rate must be 
determined from:

    q=[n( h)(85-t1)]/[ts-tf]

Where:

    q=calculated heat transfer rate to cargo tank with lading, Btu/hr.
    n=normal evaporation rate (NER), which is the rate of evaporation, 
determined by the test of a test cryogenic liquid in a cargo tank 
maintained at a pressure of approximately one atmosphere, absolute, lb/
hr.
     h=latent heat of vaporization of test fluid at test 
pressure, Btu/lb.
    ts=average temperature of outer shell during test,  deg. 
F.
    t1=equilibrium temperature of lading at maximum loading 
pressure,  deg. F.
    tf=equilibrium temperature of test fluid at one 
atmosphere,  deg. F.

    (ii) The rated holding time (RHT) must be calculated as follows:

    RHT=[(U2-U1) W]/q

Where:

    RHT=rated holding time, in hours
    U1 and U2=internal energy for the combined 
liquid and vapor lading at the pressure offered for transportation, and 
the set pressure of the applicable pressure control valve or pressure 
relief valve, respectively, Btu/lb.
    W=total weight of the combined liquid and vapor lading in the cargo 
tank, pounds.
    q=calculated heat transfer rate to cargo tank with lading, Btu/hr.

    (iii) The MRHT (see Sec. 178.338-18(b)(9) of this subchapter) may 
not exceed the RHT.
[Amdt. 178-77, 48 FR 27704, June 16, 1983; 48 FR 50442, Nov. 1, 1983, as 
amended at 49 FR 24316, June 12, 1984; 49 FR 43965, Nov. 1, 1984; 59 FR 
55173, Nov. 3, 1994; Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]



Sec. 178.338-10  Collision damage protection.

    (a) All valves, fittings, pressure relief devices and other 
accessories to the tank proper, which are not isolated from the tank by 
closed intervening shut-off valves or check valves, must be installed 
within the motor vehicle framework or within a suitable collision 
resistant guard or housing, and appropriate ventilation must be 
provided. Each pressure relief device must be protected so that in the 
event of the upset of the vehicle onto a hard surface, the device's 
opening will not be prevented and its discharge will not be restricted.
    (b) Each protective device or housing, and its attachment to the 
vehicle structure, must be designed to withstand static loading in any 
direction that it may be loaded as a result of front, rear, side, or 
sideswipe collision, or the overturn of the vehicle. The static loading 
shall equal twice the loaded weight of the tank and attachments. A 
safety factor of four, based on the tensile strength of the material, 
shall be used. The protective device or the housing must be made of 
steel at least \3/16\-inch thick, or other material of equivalent 
strength.
    (c) Each tank motor vehicle must be provided with at least one rear 
bumper designed to protect the cargo tank and piping in the event of a 
rear end collision. The bumper design must transmit the force of the 
collision directly to the chasis of the vehicle. The rear bumper and its 
attachments to the chasis must be designed to withstand a load equal to 
twice the weight of the loaded cargo tank and attachments, using a 
safety factor of four based on the tensile strength of the materials 
used, with such load being applied horizontally and parallel to the 
major axis of the cargo tank, or within 30 horizontal degrees thereof. 
The rear bumper dimensions must meet the requirements of Sec. 393.86 of 
this title and extend vertically to a height adequate to protect all 
valves and fittings located at the rear of the cargo tank from damage 
that could result in loss of lading.
    (d) Every part of the loaded cargo tank, and any associated valve, 
pipe, enclosure, or protective device or structure (exclusive of wheel 
assemblies), must be at least 14 inches above level ground.
[Amdt. 178-77, 48 FR 27705, June 16, 1983, as amended at 49 FR 24316, 
June 12, 1984; Amdt. 178-99, 58 FR 51534, Oct. 1, 1993]



Sec. 178.338-11  Discharge control devices.

    (a) Excess-flow valves are not required.
    (b) Each liquid filling and liquid discharge line must be provided 
with a

[[Page 833]]

shut-off valve located as close to the tank as practicable. Unless this 
valve is manually operable at the valve, the line must also have a 
manual shut-off valve.
    (c) Except for a cargo tank used to transport the following 
refrigerated liquids: argon, carbon dioxide, helium, krypton, neon, 
nitrogen, and xenon; each liquid filling and liquid discharge line must 
be provided with a remotely controlled self-closing shut-off valve. This 
requirement does not apply to a cargo tank motor vehicle certified 
before January 1, 1995, unless intended for use to transport flammable 
ladings. If pressure from a reservoir or from an engine driven pump or 
compressor is used to open this valve, the control must be of fail-safe 
design, spring-biased to stop the admission of such pressure. If the 
jacket is not evacuated, the seat of the valve must be inside the tank, 
in the opening nozzle or flange, or in a companion flange bolted to the 
nozzle. If the jacket is evacuated, the remotely controlled valve must 
be located as close to the tank as practicable.
    (1) On a cargo tank with a capacity in excess of 3,500 gallons of 
water, each remotely controlled shut-off valve must be provided with 
remote means of automatic closure, both mechanical and thermal, 
installed at the ends of the cargo tank in at least two diagonally 
opposite locations. The thermal means shall consist of fusible elements 
actuated at a temperature not exceeding 250 deg.F., or equivalent 
devices. One means may be used to close more than one remotely 
controlled valve.
    (2) On a cargo tank with a capacity of 3,500 gallons of water or 
less, each remotely controlled shut-off valve must be provided with at 
least one remote control station on the end of the cargo tank opposite 
the main control station. The remote control station must contain a 
manual means of closure. In addition, it may contain fusible elements 
actuated at a temperature not exceeding 250 deg.F., or equivalent 
devices. One means may be used to close more than one remotely 
controlled valve.
[Amdt. 178-77, 48 FR 27705, June 16, 1983, as amended by Amdt. 178-105, 
59 FR 55173, Nov. 3, 1994; 60 FR 17402, Apr. 5, 1995]



Sec. 178.338-12  Shear section.

    Unless the valve is located in a rear cabinet forward of and 
protected by the bumper (see Sec. 178.338-10(c)), the design and 
installation of each valve, damage to which could result in loss of 
liquid or vapor, must incorporate a shear section or breakage groove 
adjacent to, and outboard of, the valve. The shear section or breakage 
groove must yield or break under strain without damage to the valve that 
would allow the loss of liquid or vapor. The protection specified in 
Sec. 178.338-10 is not a substitute for a shear section or breakage 
groove.
[Amdt. 178-77, 49 FR 24316, June 12, 1984]



Sec. 178.338-13  Supports and anchoring.

    (a) All attachments of supports and bumpers to tanks and to load-
bearing jackets must be made by means of pads of material similar to 
that of the tank or jacket, by load rings, or by bosses designed or 
gusseted to distribute the load. The pad must be at least \1/4\-inch 
thick, or as thick as the tank or jacket material, if less, but shall in 
no case be thicker than the tank or jacket material. Each pad must 
extend at least four times its thickness, in each direction, beyond the 
weld attaching the support or bumper. Each pad must be preformed to an 
inside radius no greater than the outside radius of the tank or jacket 
at the place of attachment. Each pad corner must be rounded to a radius 
at least one-fourth the width of the pad and no greater than one-half 
the width of the pad. If weep holes or telltale holes are used, they 
must be drilled or punched before the pads are attached. Each pad must 
be attached to the tank or jacket by continuous fillet welding using 
filler material having properties conforming to the recommendations of 
the manufacturer of the tank or jacket material. Any fillet weld 
discontinuity may only be for the purpose of preventing an intersection 
between the fillet weld and a tank or jacket seam weld.
    (b) A tank motor vehicle constructed so that the cargo tank 
constitutes in whole or in part the structural member used in place of a 
motor vehicle frame must have the tank or the jacket supported by 
external cradles or by load rings. A cargo tank mounted on a

[[Page 834]]

motor vehicle frame must have the tank or jacket supported by external 
cradles, load rings, or longitudinal members. If cradles are used, they 
must subtend at least 120 degrees of the cargo tank circumference. The 
design calculations for the supports and load bearing tank or jacket, 
and the support attachments must include beam stress, shear stress, 
torsion stress, bending moment, and acceleration stress for the loaded 
vehicle as a unit, using a safety factor of four, based on the tensile 
strength of the material, and static loadings that take into 
consideration the weight of the cargo tank and its attachments when 
filled to the design weight of the lading (see appendix G of the ASME 
Code). The effects of fatigue must also be considered in the 
calculations. Minimum static loadings must be as follows:
    (1) For a vacuum-insulated cargo tank--
    (i) Vertically downward of 2;
    (ii) Vertically upward of 2;
    (iii) Longitudinally of 2; and
    (iv) Laterally of 2.
    (2) For a nonvacuum-insulated cargo tank--
    (i) Vertically downward of 3;
    (ii) Vertically upward of 2;
    (iii) Longitudinally of 2; and
    (iv) Laterally of 2.
    (c) When a loaded tank is supported within the vacuum jacket by 
structural members, the design calculations for the tank and its 
structural members must be based on a safety factor of four and the 
tensile strength of the material at ambient temperature. The enhanced 
tensile strength of the material at actual operating temperature may be 
substituted for the tensile strength at ambient temperature to the 
extent recognized in the ASME Code for static loadings. Static loadings 
must take into consideration the weight of the tank and the structural 
members when the tank is filled to the design weight of lading (see 
appendix G of the ASME Code). When load rings in the jacket are used for 
supporting the tank, they must be designed to carry the fully loaded 
tank at the specified static loadings, plus external pressure. Minimum 
static loadings must be as follows:
    (1) Vertically downward of 2;
    (2) Vertically upward of 1\1/2\;
    (3) Longitudinally of 1\1/2\; and,
    (4) Laterally of 1\1/2\.
[Amdt. 178-77, 48 FR 27705, June 16, 1983, as amended at 49 FR 24317, 
June 12, 1984]



Sec. 178.338-14  Gauging devices.

    (a) Liquid level gauging devices.
    (1) Unless a cargo tank is intended to be filled by weight, it must 
be equipped with one or more gauging devices, which accurately indicate 
the maximum permitted liquid level at the loading pressure, in order to 
provide a minimum of two percent outage below the inlet of the pressure 
control valve or pressure relief valve at the condition of incipient 
opening of that valve. A fixed-length dip tube, a fixed trycock line, or 
a differential pressure liquid level gauge must be used as the primary 
control for filling. Other gauging devices, except gauge glasses, may be 
used, but not as the primary control for filling.
    (2) The design pressure of each liquid level gauging device must be 
at least that of the tank.
    (3) If a fixed length dip tube or trycock line gauging device is 
used, it must consist of a pipe or tube of small diameter equipped with 
a valve at or near the jacket and extending into the cargo tank to a 
specified filling height. The fixed height at which the tube ends in the 
cargo tank must be such that the device will function when the liquid 
reaches the maximum level permitted in loading.
    (4) The liquid level gauging device used as a primary control for 
filling must be designed and installed to accurately indicate the 
maximum filling level at the point midway of the tank both 
longitudinally and laterally.
    (b) Pressure gauges. Each cargo tank must be provided with a 
suitable pressure gauge indicating the lading pressure and located on 
the front of the jacket so it can be read by the driver in the rear view 
mirror. Each gauge must have a reference mark at the cargo tank design 
pressure or the set pressure of the pressure relief valve or pressure 
control valve, whichever is lowest.
    (c) Orifices. All openings for dip tube gauging devices and pressure 
gauges in flammable cryogenic liquid service must be restricted at or 
inside the

[[Page 835]]

jacket by orifices no larger than 0.060-inch diameter. Trycock lines, if 
provided, may not be greater than \1/2\-inch nominal pipe size.
[Amdt. 178-77, 48 FR 27706, June 16, 1983, as amended at 49 FR 24317, 
June 12, 1984]



Sec. 178.338-15  Cleanliness.

    A cargo tank constructed for oxygen service must be thoroughly 
cleaned to remove all foreign material in accordance with CGA Pamphlet 
G-4.1. All loose particles from fabrication, such as weld beads, dirt, 
grinding wheel debris, and other loose materials, must be removed prior 
to the final closure of the manhole of the tank. Chemical or solvent 
cleaning with a material compatible with the intending lading must be 
performed to remove any contaminants likely to react with the lading.
[Amdt. 178-77, 48 FR 27706, June 16, 1983]



Sec. 178.338-16  Inspection and testing.

    (a) General. The material of construction of a tank and its 
appurtenances must be inspected for conformance to the ASME Code. The 
tank must be subjected to either a hydrostatic or pneumatic test. The 
test pressure must be one and one-half times the sum of the design 
pressure, plus static head of lading, plus 14.7 psi if subjected to 
external vacuum, except that for tanks constructed in accordance with 
Part UHT of the ASME Code the test pressure must be twice the design 
pressure.
    (b) Additional requirements for pneumatic test. A pneumatic test may 
be used in place of the hydrostatic test. Due regard for protection of 
all personnel should be taken because of the potential hazard involved 
in a pneumatic test. The pneumatic test pressure in the tank must be 
reached by gradually increasing the pressure to one-half of the test 
pressure. Thereafter, the test pressure must be increased in steps of 
approximately one-tenth of the test pressure until the required test 
pressure has been reached. Then the pressure must be reduced to a value 
equal to four-fifths of the test pressure and held for a sufficient time 
to permit inspection of the cargo tank for leaks.
    (c) Weld inspection. All tank shell or head welds subject to 
pressure shall be radiographed in accordance with the ASME Code. A tank 
which has been subjected to inspection by the magnetic particle method, 
the liquid penetrant method, or any method involving a material deposit 
on the interior tank surface, must be cleaned to remove any such residue 
by scrubbing or equally effective means, and all such residue and 
cleaning solution must be removed from the tank prior to final closure 
of the tank.
    (d) Defect repair. All cracks and other defects must be repaired as 
prescribed by the ASME Code. The welder and the welding procedure must 
be qualified in accordance with the ASME Code. After repair, the tank 
must again be postweld heat-treated, if such heat treatment was 
previously performed, and the repaired areas must be retested.
    (e) Verification must be made of the interior cleanliness of a tank 
constructed for oxygen service by means that assure that all 
contaminants that are likely to react with the lading have been removed 
as required by Sec. 178.338-15.
[Amdt. 178-77, 48 FR 27706, June 16, 1983, as amended at 49 FR 24317, 
June 12, 1984; 49 FR 42736, Oct. 24, 1984]



Sec. 178.338-17  Pumps and compressors.

    (a) Liquid pumps and gas compressors, if used, must be of suitable 
design, adequately protected against breakage by collision, and kept in 
good condition. They may be driven by motor vehicle power take-off or 
other mechanical, electrical, or hydraulic means. Unless they are of the 
centrifugal type, they shall be equipped with suitable pressure actuated 
by-pass valves permitting flow from discharge to suction to the tank.
    (b) A valve or fitting made of aluminum with internal rubbing or 
abrading aluminum parts that may come in contact with oxygen, cryogenic 
liquid, may not be installed on any cargo tank used to transport oxygen, 
cryogenic liquid, unless the parts are anodized in accordance with ASTM 
Standard B 580.
[Amdt. 178-89, 54 FR 25020, June 12, 1989, as amended at 55 FR 37058, 
Sept. 7, 1990]

[[Page 836]]



Sec. 178.338-18  Marking.

    (a) Nameplate. Each tank built after July 1, 1985 shall have a 
corrosion resistant metal plate permanently affixed by brazing or 
welding around its perimeter, on the left side (on the right side prior 
to July 1, 1985) near the front. If this nameplate is attached by 
welding, it must be welded before the tank is postweld heat-treated. The 
nameplate must be plainly marked by stamping, embossing, or other means 
of forming letters into the metal of the plate, in characters at least 
\3/8\-inches high. The following information, in addition to that 
required by the ASME Code, must be included (parenthetical abbreviations 
may be used):
    (1) DOT Specification number MC-338 (DOT MC-338);
    (2) Material specification number (Mat. Spec. No.);
    (3) Maximum density of lading for which the tank is designed (Max. 
Dens. of Lading);
    (4) Water capacity, in pounds net at 60 deg.F., with the tank at its 
coldest operating temperature, after deduction for the volume above the 
inlet to the pressure relief device or pressure control valve, 
structural members, baffles, piping, and other appurtenances inside the 
tank (W. Cap.); and
    (5) Original test date (Orig. Test Date);
    (b) Specification plate. Each tank built after July 1, 1985 shall 
have an additional plate, in the form specified in paragraph (a) of this 
section. It must be welded, brazed, or riveted to the jacket on the left 
side (on the right side prior to July 1, 1985) near the front, or at the 
control station, in a position readily legible to operating personnel. 
It must be marked with the information specified in paragraph (a) of 
this section and in addition, in characters at least \3/8\-inches high, 
the following (parenthetical abbreviations may be used):
    (1) Vehicle manufacturer (Veh. Mfr.);
    (2) Manufacturer's vehicle serial number (Veh. No.);
    (3) Lining material, if any (Lining);
    (4) Date of manufacture (Date of Mfr.);
    (5) Certificate date (Cert. Date);
    (6) Design service temperature (Design Serv. Temp.);
    (7) ``Insulation for Oxygen Service'' or ``Not Authorized for Oxygen 
Service,'' as appropriate;
    (8) Maximum weight of lading for which the cargo tank is designed, 
in pounds (Max. Net Wt. ---- lbs.);
    (9) Marked rated holding time for at least one cryogenic liquid, in 
hours, and the name of that cryogenic liquid (MRHT ---- hrs, name of 
cryogenic liquid). MRHT markings for additional cryogenic liquids may be 
displayed on or adjacent to the specification plate.
    (c) The design weight of lading used in determining the loading in 
Secs. 178.338-3(b), 178.338-10 (b) and (c), and 178.338-13 (b) and (c) 
must be shown as the maximum weight of lading marking required by 
paragraph (b) of this section.
[Amdt. 178-77, 48 FR 27706, June 16, 1983, as amended at 49 FR 24317, 
June 12, 1984; Amdt. 178-83, 50 FR 11066, Mar. 19, 1985; Amdt. 178-85, 
51 FR 5976, Feb. 18, 1986]



Sec. 178.338-19  Certification.

    (a) At or before the time of delivery, the manufacturer of a cargo 
tank motor vehicle shall furnish to the owner of the completed vehicle 
the following:
    (1) The tank manufacturer's data report as required by the ASME 
Code, and a certificate bearing the manufacturer's vehicle serial number 
stating that the completed cargo tank motor vehicle conforms to all 
applicable requirements of Specification MC 338, including the ASME Code 
in effect on the date (month, year) of certification. The registration 
numbers of the manufacturer, the Design Certifying Engineer, and the 
Registered Inspector, as appropriate, must appear on the certificates 
(See subpart F, part 107 in subchapter B of this chapter).
    (i) For each design type, the certificate must be signed by a 
responsible official of the manufacturer and a Design Certifying 
Engineer; and
    (ii) For each cargo tank motor vehicle, the certificate must be 
signed by a responsible official of the manufacturer and a Design 
Certifying Engineer;
    (2) A photograph, pencil rub, or other facsimile of the plates 
required by paragraphs (a) and (b) of Sec. 178.338-18.
    (b) In the case of a cargo tank vehicle manufactured in two or more 
stages, each manufacturer who performs a

[[Page 837]]

manufacturing operation on the incomplete vehicle or portion thereof 
shall furnish to the succeeding manufacturer, at or before the time of 
delivery, a certificate covering the particular operation performed by 
that manufacturer, and any certificates received from previous 
manufacturers, Registered Inspectors, and Design Certifying Engineers. 
The certificates must include sufficient sketches, drawings, and other 
information to indicate the location, make, model and size of each valve 
and the arrangement of all piping associated with the tank. Each 
certificate must be signed by an official of the manufacturing firm 
responsible for the portion of the complete cargo tank vehicle 
represented thereby, such as basic tank fabrication, insulation, jacket, 
or piping. The final manufacturer shall furnish the owner with all 
certificates, as well as the documents required by paragraph (a) of this 
section.
    (c) The owner shall retain the data report, certificates, and 
related papers throughout his ownership of the cargo tank. In the event 
of change of ownership, the prior owner shall retain non-fading 
photographically reproduced copies of these documents for at least one 
year. Each operator using the cargo tank vehicle, if not the owner 
thereof, shall obtain a copy of the data report and the certificate or 
certificates and retain them during the time he uses the cargo tank and 
for at least one year thereafter.

(Approved by the Office of Management and Budget under control number 
2137-0017)

[Amdt. 178-77, 48 FR 27707 and 27713, June 16, 1983, as amended by Amdt. 
178-89, 55 FR 37058, Sept. 7, 1990; Amdt. 178-99, 58 FR 51534, Oct. 1, 
1993; 62 FR 51561, Oct. 1, 1997]



Secs. 178.340--178.343  [Reserved]



Sec. 178.345  General design and construction requirements applicable to Specification DOT 406 (Sec. 178.346), DOT 407 (Sec. 178.347), and DOT 412 
          (Sec. 178.348) cargo tank motor vehicles.



Sec. 178.345-1  General requirements.

    (a) Specification DOT 406, DOT 407 and DOT 412 cargo tank motor 
vehicles must conform to the requirements of this section in addition to 
the requirements of the applicable specification contained in 
Secs. 178.346, 178.347 or 178.348.
    (b) All specification requirements are minimum requirements.
    (c) Definitions. The following terms apply to Secs. 178.345, 
178.346, 178.347 and 178.348.
    Appurtenance means any cargo tank accessory attachment that has no 
lading retention or containment function and provides no structural 
support to the cargo tank.
    Baffle means a non-liquid-tight transverse partition device that 
deflects, checks or regulates fluid motion in a tank.
    Bulkhead means a liquid-tight transverse closure at the ends of or 
between cargo tanks.
    Charging line means a hose, tube, pipe, or similar device used to 
pressurize a tank with material other than the lading.
    Companion flange means one of two mating flanges where the flange 
faces are in contact or separated only by a thin leak sealing gasket and 
are secured to one another by bolts or clamps.
    Connecting structure means the structure joining two cargo tanks.
    Constructed and certified in conformance with the ASME Code means 
the cargo tank is constructed and stamped in accordance with the ASME 
Code, and is inspected and certified by an Authorized Inspector.
    Constructed in accordance with the ASME Code means the cargo tank is 
constructed in accordance with the ASME Code with the authorized 
exceptions (see Secs. 178.346, 178.347, and 178.348) and is inspected 
and certified by a Registered Inspector.
    External self-closing stop-valve means a self-closing stop-valve 
designed so that the self-stored energy source is located outside the 
cargo tank and the welded flange.
    Extreme dynamic loading means the maximum single-acting loading a 
cargo tank motor vehicle may experience during its expected life, 
excluding accident loadings.
    Flange means the structural ring for guiding or attachment of a pipe 
or fitting with another flange (companion

[[Page 838]]

flange), pipe, fitting or other attachment.
    Inspection pressure means the pressure used to determine leak 
tightness of the cargo tank when testing with pneumatic pressure.
    Internal self-closing stop-valve means a self-closing stop-valve 
designed so that the self-stored energy source is located inside the 
cargo tank or cargo tank sump, or within the welded flange, and the 
valve seat is located within the cargo tank or within one inch of the 
external face of the welded flange or sump of the cargo tank.
    Lading means the hazardous material contained in a cargo tank.
    Loading/unloading connection means the fitting in the loading/
unloading line farthest from the loading/unloading outlet to which the 
loading/unloading hose or device is attached.
    Loading/unloading outlet means the cargo tank outlet used for normal 
loading/unloading operations.
    Loading/unloading stop-valve means the stop valve farthest from the 
cargo tank loading/unloading outlet to which the loading/unloading 
connection is attached.
    Maximum allowable working pressure or MAWP. See Sec. 178.345-1(k).
    Multi-specification cargo tank motor vehicle means a cargo tank 
motor vehicle equipped with two or more cargo tanks fabricated to more 
than one cargo tank specification.
    Normal operating loading means the loading a cargo tank motor 
vehicle may be expected to experience routinely in operation.
    Nozzle means the subassembly consisting of a pipe or tubular section 
with or without a welded or forged flange on one end.
    Outlet means any opening in the shell or head of a cargo tank, 
(including the means for attaching a closure), except that the following 
are not outlets: A threaded opening securely closed during 
transportation with a threaded plug or a threaded cap, a flanged opening 
securely closed during transportation with a bolted or welded blank 
flange, a manhole, or gauging devices, thermometer wells, and safety 
relief devices.
    Outlet stop-valve means the stop-valve at the cargo tank loading/
unloading outlet.
    Pipe coupling means a fitting with internal threads on both ends.
    Rear bumper means the structure designed to prevent a vehicle or 
object from under-riding the rear of a motor vehicle. See Sec. 393.86 of 
this title.
    Rear-end tank protection device means the structure designed to 
protect a cargo tank and any lading retention piping or devices in case 
of a rear end collision.
    Sacrificial Device means an element, such as a shear section, 
designed to fail under load in order to prevent damage to any lading 
retention part or device. The device must break under strain at no more 
than 70 percent of the strength of the weakest piping element between 
the cargo tank and the sacrificial device. Operation of the sacrificial 
device must leave the remaining piping and its attachment to the cargo 
tank intact and capable of retaining lading.
    Self-closing stop-valve means a stop-valve held in the closed 
position by means of self-stored energy, which opens only by application 
of an external force and which closes when the external force is 
removed.
    Shear section means a sacrificial device fabricated in such a manner 
as to abruptly reduce the wall thickness of the adjacent piping or valve 
material by at least 30 percent.
    Shell means the circumferential portion of a cargo tank defined by 
the basic design radius or radii excluding the closing heads.
    Stop-valve means a valve that stops the flow of lading.
    Sump means a protrusion from the bottom of a cargo tank shell 
designed to facilitate complete loading and unloading of lading.
    Tank means a container, consisting of a shell and heads, that forms 
a pressure tight vessel having openings designed to accept pressure 
tight fittings or closures, but excludes any appurtenances, 
reinforcements, fittings, or closures.
    Test pressure means the pressure to which a tank is subjected to 
determine pressure integrity.

[[Page 839]]

    Toughness of material means the capability of a material to absorb 
the energy represented by the area under the stress strain curve 
(indicating the energy absorbed per unit volume of the material) up to 
the point of rupture.
    Vacuum cargo tank means a cargo tank that is loaded by reducing the 
pressure in the cargo tank to below atmospheric pressure.
    Variable specification cargo tank means a cargo tank that is 
constructed in accordance with one specification, but which may be 
altered to meet another specification by changing relief device, 
closures, lading discharge devices, and other lading retention devices.
    Void means the space between tank heads or bulkheads and a 
connecting structure.
    Welded flange means a flange attached to the tank by a weld joining 
the tank shell to the cylindrical outer surface of the flange, or by a 
fillet weld joining the tank shell to a flange shaped to fit the shell 
contour.
    (d) A manufacturer of a cargo tank must hold a current ASME 
certificate of authorization and must be registered with the Department 
in accordance with part 107, subpart F of this chapter.
    (e) All construction must be certified by an Authorized Inspector or 
by a Registered Inspector as applicable to the cargo tank.
    (f) Each cargo tank must be designed and constructed in conformance 
with the requirements of the applicable cargo tank specification. Each 
DOT 412 cargo tank with a maximum allowable working pressure greater 
than 15 psig, and each DOT 407 cargo tank with a maximum allowable 
working pressure greater than 35 psig must be ``constructed and 
certified in conformance with the ASME Code'' except as limited or 
modified by the applicable cargo tank specification. Other cargo tanks 
must be ``constructed in accordance with the ASME Code'', except as 
limited or modified by the applicable cargo tank specification.
    (g) Requirements relating to parts and accessories on motor 
vehicles, which are contained in part 393 of the Federal Motor Carrier 
Safety Regulations of this title, are incorporated into these 
specifications.
    (h) Any additional requirements prescribed in part 173 of this 
subchapter that pertain to the transportation of a specific lading are 
incorporated into these specifications.
    (i) Cargo tank motor vehicle composed of multiple cargo tanks.
    (1) A cargo tank motor vehicle composed of more than one cargo tank 
may be constructed with the cargo tanks made to the same specification 
or to different specifications. Each cargo tank must conform in all 
respects with the specification for which it is certified.
    (2) The strength of the connecting structure joining multiple cargo 
tanks in a cargo tank motor vehicle must meet the structural design 
requirements in Sec. 178.345-3. Any void within the connecting structure 
must be vented to the atmosphere and have a drain located on the bottom 
centerline. Each drain must be accessible and must be kept open at all 
times. The drain in any void within the connecting structure of a carbon 
steel, self-supporting cargo tank may be either a single drain of at 
least 1.0 inch diameter, or two or more drains of at least 0.5 inch 
diameter, 6.0 inches apart, one of which is located on the bottom 
centerline.
    (j) Variable specification cargo tank. A cargo tank that may be 
physically altered to conform to another cargo tank specification must 
have the required physical alterations to convert from one specification 
to another clearly indicated on the variable specification plate.
    (k) Maximum Allowable Working Pressure (MAWP). The MAWP for each 
cargo tank must be greater than or equal to the largest of the following 
(the MAWP derived is the pressure to be used as prescribed in the ASME 
Code in the design of the tank):
    (1) The pressure prescribed for the lading in part 173;
    (2) Vapor pressure of the most volatile lading, at 115  deg.F 
(expressed in psig), plus the maximum static pressure exerted by the 
lading at the maximum lading density, plus any pressure exerted by a gas 
padding (including air in the ullage space or dome), if used; or

[[Page 840]]

    (3) The maximum pressure in the tank during loading or unloading.
[Amdt. 178-89, 54 FR 25020, June 12, 1989, as amended at 55 FR 37058, 
Sept. 7, 1990; Amdt. 178-105, 59 FR 55173, Nov. 3, 1994; Amdt. 178-118, 
61 FR 51340, Oct. 1, 1996]



Sec. 178.345-2  Material and material thickness.

    (a) All material for shell, heads, bulkheads, and baffles must 
conform to section II, parts A and B, of the ASME Code except as 
follows:
    (1) The following steels are also authorized for cargo tanks 
``constructed in accordance with the ASME Code''.

ASTM A 569
ASTM A 570
ASTM A 572
ASTM A 607
ASTM A 622
ASTM A 656
ASTM A 715
    (2) Aluminum alloys suitable for fusion welding and conforming with 
the 0, H32 or H34 tempers of one of the following ASTM specifications 
may be used for cargo tanks ``constructed in accordance with the ASME 
Code'':

    ASTM B-209 Alloy 5052
    ASTM B-209 Alloy 5086
    ASTM B-209 Alloy 5154
    ASTM B-209 Alloy 5254
    ASTM B-209 Alloy 5454
    ASTM B-209 Alloy 5652


All heads, bulkheads and baffles must be of 0 temper (annealed) or 
stronger tempers. All shell materials shall be of H 32 or H 34 tempers 
except that the lower ultimate strength tempers may be used if the 
minimum shell thicknesses in the tables are increased in inverse 
proportion to the lesser ultimate strength.
    (b) Minimum thickness. The minimum thickness for the shell and heads 
must be such that the maximum stress levels specified in Sec. 178.345-3 
of this subpart are not exceeded. In no case may the shell or head 
thickness be less than that specified in the applicable specification.
    (c) Corrosion or abrasion protection. When required by 49 CFR part 
173 for a particular lading, a cargo tank or a part thereof, subject to 
thinning by corrosion or mechanical abrasion due to the lading, must be 
protected by providing the tank or part of the tank with a suitable 
increase in thickness of material, a lining or some other suitable 
method of protection.
    (1) Corrosion allowance. Material added for corrosion allowance need 
not be of uniform thickness if different rates of attack can reasonably 
be expected for various areas of the cargo tank.
    (2) Lining. Lining material must consist of a nonporous, homogeneous 
material not less elastic than the parent metal and substantially immune 
to attack by the lading. The lining material must be bonded or attached 
by other appropriate means to the cargo tank wall and must be 
imperforate when applied. Any joint or seam in the lining must be made 
by fusing the materials together, or by other satisfactory means.
[Amdt. 178-89, 54 FR 25021, June 12, 1989, as amended at 55 FR 37059, 
Sept. 7, 1990; 56 FR 27876, June 17, 1991; Amdt. 178-97, 57 FR 45465, 
Oct. 1, 1992; Amdt. 178-118, 61 FR 51341, Oct. 1, 1996]



Sec. 178.345-3  Structural integrity.

    (a) General requirements and acceptance criteria. (1) The maximum 
calculated design stress at any point in the cargo tank wall may not 
exceed the maximum allowable stress value prescribed in section VIII of 
the ASME Code, or 25 percent of the tensile strength of the material 
used at design conditions.
    (2) The relevant physical properties of the materials used in each 
cargo tank may be established either by a certified test report from the 
material manufacturer or by testing in conformance with a recognized 
national standard. In either case, the ultimate tensile strength of the 
material used in the design may not exceed 120 percent of the minimum 
ultimate tensile strength specified in either the ASME Code or the ASTM 
standard to which the material is manufactured.
    (3) The maximum design stress at any point in the cargo tank must be 
calculated separately for the loading conditions described in paragraphs 
(b) and (c) of this section. Alternate test or analytical methods, or a 
combination thereof, may be used in place of the procedures described in 
paragraphs

[[Page 841]]

(b) and (c) of this section, if the methods are accurate and verifiable.
    (4) Corrosion allowance material may not be included to satisfy any 
of the design calculation requirements of this section.
    (b) ASME Code design and construction. The static design and 
construction of each cargo tank must be in accordance with Section VIII, 
Division 1 of the ASME Code. The cargo tank design must include 
calculation of stresses generated by the MAWP, the weight of the lading, 
the weight of structures supported by the cargo tank wall and the effect 
of temperature gradients resulting from lading and ambient temperature 
extremes. When dissimilar materials are used, their thermal coefficients 
must be used in the calculation of thermal stresses.
    (1) Stress concentrations in tension, bending and torsion which 
occur at pads, cradles, or other supports must be considered in 
accordance with Appendix G of Section VIII, Division 1 of the ASME Code.
    (2) Longitudinal compressive buckling stress for ASME certified 
vessels must be calculated using paragraph UG-23(b), Section VIII, 
Division 1 of the ASME Code. For cargo tanks not required to be 
certified in accordance with the ASME Code, compressive buckling stress 
may be calculated using alternative analysis methods which are accurate 
and verifiable. When alternative methods are used calculations must 
include both the static loads described in this paragraph and the 
dynamic loads described in paragraph (c) of this section.
    (c) Shell design. Shell stresses resulting from static or dynamic 
loadings, or combinations thereof, are not uniform throughout the cargo 
tank motor vehicle. The vertical, longitudinal, and lateral normal 
operating loadings can occur simultaneously and must be combined. The 
vertical, longitudinal and lateral extreme dynamic loadings occur 
separately and need not be combined.
    (1) Normal operating loadings. The following procedure addresses 
stress in the cargo tank shell resulting from normal operating loadings. 
The effective stress (the maximum principal stress at any point) must be 
determined by the following formula:

S = 0.5(Sy + Sx)  
[0.25(Sy-Sx)\2\ + SS2]0.5
Where:

    (i) S = effective stress at any given point under the combination of 
static and normal operating loadings that can occur at the same time, in 
psi.
    (ii) Sy = circumferential stress generated by the MAWP 
and external pressure, when applicable, plus static head, in psi.
    (iii) Sx = The following net longitudinal stress 
generated by the following static and normal operating loading 
conditions, in psi:
    (A) The longitudinal stresses resulting from the MAWP and external 
pressure, when applicable, plus static head, in combination with the 
bending stress generated by the static weight of the fully loaded cargo 
tank motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall;
    (B) The tensile or compressive stress resulting from normal 
operating longitudinal acceleration or deceleration. In each case, the 
forces applied must be 0.35 times the vertical reaction at the 
suspension assembly, applied at the road surface, and as transmitted to 
the cargo tank wall through the suspension assembly of a trailer during 
deceleration; or the horizontal pivot of the truck tractor or converter 
dolly fifth wheel, or the drawbar hinge on the fixed dolly during 
acceleration; or anchoring and support members of a truck during 
acceleration and deceleration, as applicable. The vertical reaction must 
be calculated based on the static weight of the fully loaded cargo tank 
motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall. The following loadings must be 
included:
    (1) The axial load generated by a decelerative force;
    (2) The bending moment generated by a decelerative force;
    (3) The axial load generated by an accelerative force; and
    (4) The bending moment generated by an accelerative force; and
    (C) The tensile or compressive stress generated by the bending 
moment resulting from normal operating vertical accelerative force equal 
to 0.35 times

[[Page 842]]

the vertical reaction at the suspension assembly of a trailer; or the 
horizontal pivot of the upper coupler (fifth wheel) or turntable; or 
anchoring and support members of a truck, as applicable. The vertical 
reaction must be calculated based on the static weight of the fully 
loaded cargo tank motor vehicle, all structural elements, equipment and 
appurtenances supported by the cargo tank wall.
    (iv) SS = The following shear stresses generated by the 
following static and normal operating loading conditions, in psi:
    (A) The static shear stress resulting from the vertical reaction at 
the suspension assembly of a trailer, and the horizontal pivot of the 
upper coupler (fifth wheel) or turntable; or anchoring and support 
members of a truck, as applicable. The vertical reaction must be 
calculated based on the static weight of the fully loaded cargo tank 
motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall;
    (B) The vertical shear stress generated by a normal operating 
accelerative force equal to 0.35 times the vertical reaction at the 
suspension assembly of a trailer; or the horizontal pivot of the upper 
coupler (fifth wheel) or turntable; or anchoring and support members of 
a truck, as applicable. The vertical reaction must be calculated based 
on the static weight of the fully loaded cargo tank motor vehicle, all 
structural elements, equipment and appurtenances supported by the cargo 
tank wall;
    (C) The lateral shear stress generated by a normal operating lateral 
accelerative force equal to 0.2 times the vertical reaction at each 
suspension assembly of a trailer, applied at the road surface, and as 
transmitted to the cargo tank wall through the suspension assembly of a 
trailer, and the horizontal pivot of the upper coupler (fifth wheel) or 
turntable; or anchoring and support members of a truck, as applicable. 
The vertical reaction must be calculated based on the static weight of 
the fully loaded cargo tank motor vehicle, all structural elements, 
equipment and appurtenances supported by the cargo tank wall; and
    (D) The torsional shear stress generated by the same lateral forces 
as described in paragraph (c)(1)(iv)(C) of this section.
    (2) Extreme dynamic loadings. The following procedure addresses 
stress in the cargo tank shell resulting from extreme dynamic loadings. 
The effective stress (the maximum principal stress at any point) must be 
determined by the following formula:

S = 0.5(Sy + Sx)  [0.25(Sy 
- Sx)\2\ + SS\2\]0.5

Where:
    (i) S = effective stress at any given point under a combination of 
static and extreme dynamic loadings that can occur at the same time, in 
psi.
    (ii) Sy = circumferential stress generated by MAWP and 
external pressure, when applicable, plus static head, in psi.
    (iii) Sx = the following net longitudinal stress 
generated by the following static and extreme dynamic loading 
conditions, in psi:
    (A) The longitudinal stresses resulting from the MAWP and external 
pressure, when applicable, plus static head, in combination with the 
bending stress generated by the static weight of the fully loaded cargo 
tank motor vehicle, all structural elements, equipment and appurtenances 
supported by the tank wall;
    (B) The tensile or compressive stress resulting from extreme 
longitudinal acceleration or deceleration. In each case the forces 
applied must be 0.7 times the vertical reaction at the suspension 
assembly, applied at the road surface, and as transmitted to the cargo 
tank wall through the suspension assembly of a trailer during 
deceleration; or the horizontal pivot of the truck tractor or converter 
dolly fifth wheel, or the drawbar hinge on the fixed dolly during 
acceleration; or the anchoring and support members of a truck during 
acceleration and deceleration, as applicable. The vertical reaction must 
be calculated based on the static weight of the fully loaded cargo tank 
motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall. The following loadings must be 
included:
    (1) The axial load generated by a decelerative force;

[[Page 843]]

    (2) The bending moment generated by a decelerative force;
    (3) The axial load generated by an accelerative force; and
    (4) The bending moment generated by an accelerative force; and
    (C) The tensile or compressive stress generated by the bending 
moment resulting from an extreme vertical accelerative force equal to 
0.7 times the vertical reaction at the suspension assembly of a trailer, 
and the horizontal pivot of the upper coupler (fifth wheel) or 
turntable; or the anchoring and support members of a truck, as 
applicable. The vertical reaction must be calculated based on the static 
weight of the fully loaded cargo tank motor vehicle, all structural 
elements, equipment and appurtenances supported by the cargo tank wall.
    (iv) SS = The following shear stresses generated by 
static and extreme dynamic loading conditions, in psi:
    (A) The static shear stress resulting from the vertical reaction at 
the suspension assembly of a trailer, and the horizontal pivot of the 
upper coupler (fifth wheel) or turntable; or anchoring and support 
members of a truck, as applicable. The vertical reaction must be 
calculated based on the static weight of the fully loaded cargo tank 
motor vehicle, all structural elements, equipment and appurtenances 
supported by the cargo tank wall;
    (B) The vertical shear stress generated by an extreme vertical 
accelerative force equal to 0.7 times the vertical reaction at the 
suspension assembly of a trailer, and the horizontal pivot of the upper 
coupler (fifth wheel) or turntable; or anchoring and support members of 
a truck, as applicable. The vertical reaction must be calculated based 
on the static weight of the fully loaded cargo tank motor vehicle, all 
structural elements, equipment and appurtenances supported by the cargo 
tank wall;
    (C) The lateral shear stress generated by an extreme lateral 
accelerative force equal to 0.4 times the vertical reaction at the 
suspension assembly of a trailer, applied at the road surface, and as 
transmitted to the cargo tank wall through the suspension assembly of a 
trailer, and the horizontal pivot of the upper coupler (fifth wheel) or 
turntable; or anchoring and support members of a truck, as applicable. 
The vertical reaction must be calculated based on the static weight of 
the fully loaded cargo tank motor vehicle, all structural elements, 
equipment and appurtenances supported by the cargo tank wall; and
    (D) The torsional shear stress generated by the same lateral forces 
as described in paragraph (c)(2)(iv)(C) of this section.
    (d) In no case may the minimum thickness of the cargo tank shells 
and heads be less than that prescribed in Sec. 178.346-2, Sec. 178.347-
2, or Sec. 178.348-2, as applicable.
    (e) For a cargo tank mounted on a frame or built with integral 
structural supports, the calculation of effective stresses for the 
loading conditions in paragraph (c) of this section may include the 
structural contribution of the frame or the integral structural 
supports.
    (f) The design, construction, and installation of an appurtenance to 
the cargo tank must conform to the following requirements:
    (1) Structural members, the suspension subframe, accident protection 
and external rings must be used as sites for attachment of appurtenances 
and other accessories to the cargo tank, when practicable.
    (2) A lightweight attachment to the cargo tank wall, such as a 
conduit clip, brakeline clip, skirting structure, lamp mounting bracket, 
or placard holder, must be of a construction having lesser strength than 
the cargo tank wall materials and may not be more than 72 percent of the 
thickness of the material to which it is attached. The lightweight 
attachment may be secured directly to the cargo tank wall if the device 
is designed and installed in such a manner that, if damaged, it will not 
affect the lading retention integrity of the tank. A lightweight 
attachment must be secured to the cargo tank shell or head by continuous 
weld or in such a manner as to preclude formation of pockets, which may 
become sites for incipient corrosion.
    (3) Except as prescribed in paragraphs (g)(1) and (g)(2) of this 
section, the welding of any appurtenance to the

[[Page 844]]

cargo tank wall must be made by attachment of a mounting pad, so that 
there will be no adverse effect upon the lading retention integrity of 
the cargo tank if any force less than that prescribed in Sec. 178.345-
8(b)(1) of this subchapter is applied from any direction. The thickness 
of the mounting pad may not be less than that of the shell or head to 
which it is attached, and not more than 1.5 times the shell or head 
thickness. However, a pad with a minimum thickness of 0.187 inch may be 
used when the shell or head thickness is over 0.187 inch. If weep holes 
or tell-tale holes are used, the pad must be drilled or punched at its 
lowest point before it is welded. Each pad must--
    (i) Extend at least 2 inches in each direction from any point of 
attachment of an appurtenance;
    (ii) Have rounded corners, or otherwise be shaped in a manner to 
minimize stress concentrations on the shell or head; and
    (iii) Be attached by a continuous weld around the pad except for a 
small gap at the lowest point for draining.
[Amdt. 178-89, 55 FR 37059, Sept. 7, 1990, as amended by Amdt. 178-89, 
56 FR 27876, June 17, 1991; Amdt. 178-104, 59 FR 49135, Sept. 26, 1994; 
Amdt. 178-105, 59 FR 55173, 55174 and 55175, Nov. 3, 1994; 60 FR 17402, 
Apr. 5, 1995; Amdt. 178-118, 61 FR 51341, Oct. 1, 1996]



Sec. 178.345-4  Joints.

    (a) All joints between the cargo tank shell, heads, baffles, baffle 
attaching rings, and bulkheads must be welded in conformance with the 
ASME Code welding procedures.
    (b) Where practical all welds must be easily accessible for 
inspection.
[Amdt. 178-89, 54 FR 25022, June 12, 1989, as amended by Amdt. 178-118, 
61 FR 51341, Oct. 1, 1996]



Sec. 178.345-5  Manhole assemblies.

    (a) Each cargo tank with capacity greater than 400 gallons must be 
accessible through a manhole at least 15 inches in diameter.
    (b) Each manhole, fill opening and washout assembly must be 
structurally capable of withstanding, without leakage or permanent 
deformation that would affect its structural integrity, a static 
internal fluid pressure of at least 36 psig, or cargo tank test 
pressure, whichever is greater. The manhole assembly manufacturer shall 
verify compliance with this requirement by hydrostatically testing at 
least one percent (or one manhole closure, whichever is greater) of all 
manhole closures of each type produced each 3 months, as follows:
    (1) The manhole, fill opening, or washout assembly must be tested 
with the venting devices blocked. Any leakage or deformation that would 
affect the product retention capability of the assembly shall constitute 
a failure.
    (2) If the manhole, fill opening, or washout assembly tested fails, 
then five more covers from the same lot must be tested. If one of these 
five covers fails, then all covers in the lot from which the tested 
covers were selected are to be 100% tested or rejected for service.
    (c) Each manhole, filler and washout cover must be fitted with a 
safety device that prevents the cover from opening fully when internal 
pressure is present.
    (d) Each manhole and fill cover must be secured with fastenings that 
will prevent opening of the covers as a result of vibration under normal 
transportation conditions or shock impact due to a rollover accident on 
the roadway or shoulder where the fill cover is not struck by a 
substantial obstacle.
    (e) Each manhole cover must be permanently marked by stamping or 
other means with:
    (1) Manufacturer's name;
    (2) Test pressure ______ psig;
    (3) A statement certifying that the manhole cover meets the 
requirements in Sec. 178.345-5.
    (f) All fittings and devices mounted on a manhole cover, coming in 
contact with the lading, must withstand the same static internal fluid 
pressure and contain the same permanent compliance markings as that 
required for the manhole cover. The fitting or device manufacturer shall 
verify compliance using the same test procedure and frequency of testing 
as specified in Sec. 178.345-5(b).
[Amdt. 178-89, 54 FR 25022, June 12, 1989, as amended by Amdt. 178-105, 
59 FR 55175, Nov. 3, 1994]

[[Page 845]]



Sec. 178.345-6  Supports and anchoring.

    (a) A cargo tank with a frame not integral to the cargo tank must 
have the tank secured by restraining devices to eliminate any motion 
between the tank and frame that may abrade the tank shell due to the 
stopping, starting, or turning of the cargo tank motor vehicle. The 
design calculations of the support elements must include the stresses 
indicated in Sec. 178.345-3(b) and as generated by the loads described 
in Sec. 178.345-3(c). Such restraining devices must be readily 
accessible for inspection and maintenance, except that insulation and 
jacketing are permitted to cover the restraining devices.
    (b) A cargo tank designed and constructed so that it constitutes, in 
whole or in part, the structural member used in lieu of a frame must be 
supported in such a manner that the resulting stress levels in the cargo 
tank do not exceed those specified in Sec. 178.345-3(a). The design 
calculations of the support elements must include the stresses indicated 
in Sec. 178.345-3(b) and as generated by the loads described in 
Sec. 178.345-3(c).
[Amdt. 178-89, 54 FR 25023, June 12, 1989, as amended by Amdt. 178-105, 
59 FR 55175, Nov. 3, 1994; Amdt. 178-118, 61 FR 51341, Oct. 1, 1996]



Sec. 178.345-7  Circumferential reinforcements.

    (a) A cargo tank with a shell thickness of less than \3/8\ inch must 
be circumferentially reinforced with bulkheads, baffles, ring 
stiffeners, or any combination thereof, in addition to the cargo tank 
heads.
    (1) Circumferential reinforcement must be located so that the 
thickness and tensile strength of the shell material in combination with 
the frame and reinforcement produces structural integrity at least equal 
to that prescribed in Sec. 178.345-3 and in such a manner that the 
maximum unreinforced portion of the shell does not exceed 60 inches. For 
cargo tanks designed to be loaded by vacuum, spacing of circumferential 
reinforcement may exceed 60 inches provided the maximum unreinforced 
portion of the shell conforms with the requirements of Section VIII, 
Division 1 of the ASME Code.
    (2) Where circumferential joints are made between conical shell 
sections, or between conical and cylindrical shell sections, and the 
angle between adjacent sections is less than 160 degrees, 
circumferential reinforcement must be located within one inch of the 
shell joint, unless otherwise reinforced with structural members capable 
of maintaining shell stress levels authorized in Sec. 178.345-3. When 
the joint is formed by the large ends of adjacent conical shell 
sections, or by the large end of a conical shell and a cylindrical shell 
section, this angle is measured inside the shell; when the joint is 
formed by the small end of a conical shell section and a cylindrical 
shell section, it is measured outside the shell.
    (b) Except for doubler plates and knuckle pads, no reinforcement may 
cover any circumferential joint.
    (c) When a baffle or baffle attachment ring is used as a 
circumferential reinforcement member, it must produce structural 
integrity at least equal to that prescribed in Sec. 178.345-3 and must 
be circumferentially welded to the cargo tank shell. The welded portion 
may not be less than 50 percent of the total circumference of the cargo 
tank and the length of any unwelded space on the joint may not exceed 40 
times the shell thickness unless reinforced external to the cargo tank.
    (d) When a ring stiffener is used as a circumferential reinforcement 
member, whether internal or external, reinforcement must be continuous 
around the circumference of the cargo tank shell and must be in 
accordance with the following:
    (1) The section modulus about the neutral axis of the ring section 
parallel to the shell must be at least equal to that derived from the 
applicable formula:

I/C=0.00027WL, for MS, HSLA and SS; or
I/C=0.000467WL, for aluminum alloys;

\1\ Where:

I/C=Section modulus in inches 3
W=Tank width, or diameter, inches
L=Spacing of ring stiffener, inches; i.e., the maximum longitudinal 
          distance from the midpoint of the unsupported shell on one 
          side of the ring stiffener to the midpoint of the unsupported 
          shell on the opposite side of the ring stiffener.


[[Page 846]]


    (2) If a ring stiffener is welded to the cargo tank shell, a portion 
of the shell may be considered as part of the ring section for purposes 
of computing the ring section modulus. This portion of the shell may be 
used provided at least 50 percent of the total circumference of the 
cargo tank is welded and the length of any unwelded space on the joint 
does not exceed 40 times the shell thickness. The maximum portion of the 
shell to be used in these calculations is as follows:

                                                                        
------------------------------------------------------------------------
  Number of circumferential ring                                        
     stiffener-to-shell welds              J \1\          Shell section 
------------------------------------------------------------------------
1................................  ....................  20t            
2................................  Less than 20t.......  20t+J          
2................................  20t or more.........  40t            
------------------------------------------------------------------------
\1\ where:                                                              
t=Shell thickness, inches;                                              
J=Longitudinal distance between parallel circumferential ring stiffener-
  to-shell welds.                                                       

    (3) When used to meet the vacuum requirements of this section, ring 
stiffeners must be as prescribed in the ASME Code.
    (4) If configuration of internal or external ring stiffener encloses 
an air space, this air space must be arranged for venting and be 
equipped with drainage facilities which must be kept operative at all 
times.
    (5) Hat shaped or open channel ring stiffeners which prevent visual 
inspection of the cargo tank shell are prohibited on cargo tank motor 
vehicles constructed of carbon steel.
[Amdt. 178-89, 55 FR 37060, Sept. 7, 1990; as amended by Amdt. 178-89, 
56 FR 27876, June 17, 1991; 56 FR 46354, Sept. 11, 1991; Amdt. 178-104, 
59 FR 49135, Sept. 26, 1994; Amdt. 178-118, 61 FR 51341, Oct. 1, 1996]



Sec. 178.345-8  Accident damage protection.

    (a) General. Each cargo tank motor vehicle must be designed and 
constructed in accordance with the requirements of this section and the 
applicable individual specification to minimize the potential for the 
loss of lading due to an accident.
    (1) Any dome, sump, or washout cover plate projecting from the cargo 
tank wall that retains lading in any tank orientation, must be as strong 
and tough as the cargo tank wall and have a thickness at least equal to 
that specified by the appropriate cargo tank specification. Any such 
projection located in the lower \1/3\ of the tank circumference (or 
cross section perimeter for non-circular cargo tanks) that extends more 
than half its diameter at the point of attachment to the tank or more 
than 4 inches from the cargo tank wall, or located in the upper \2/3\ of 
the tank circumference (or cross section perimeter for non-circular 
cargo tanks) that extends more than \1/4\ its diameter or more than 2 
inches from the point of attachment to the tank must have accident 
damage protection devices that are:
    (i) As specified in this section;
    (ii) 125 percent as strong as the otherwise required accident damage 
protection device; or
    (iii) Attached to the cargo tank in accordance with the requirements 
of paragraph (a)(3) of this section.
    (2) Outlets, valves, closures, piping, or any devices that if 
damaged in an accident could result in a loss of lading from the cargo 
tank must be protected by accident damage protection devices as 
specified in this section.
    (3) Accident damage protection devices attached to the wall of a 
cargo tank must be able to withstand or deflect away from the cargo tank 
the loads specified in this section. They must be designed, constructed 
and installed so as to maximize the distribution of loads to the cargo 
tank wall and to minimize the possibility of adversely affecting the 
lading retention integrity of the cargo tank. Accident induced stresses 
resulting from the appropriate accident damage protection device 
requirements in combination with the stresses from the cargo tank 
operating at the MAWP may not result in a cargo tank wall stress greater 
than the ultimate strength of the material of construction using a 
safety factor of 1.3. Deformation of the protection device is acceptable 
provided the devices being protected are not damaged when loads 
specified in this section are applied.
    (4) Any piping that extends beyond an accident damage protection 
device must be equipped with a stop-valve and a sacrificial device such 
as a shear section. The sacrificial device must be located in the piping 
system outboard of the stop-valve and within the accident

[[Page 847]]

damage protection device to prevent any accidental loss of lading. The 
device must break at no more than 70 percent of the load that would be 
required to cause the failure of the protected lading retention device, 
part or cargo tank wall. The failure of the sacrificial device must 
leave the protected lading retention device and its attachment to the 
cargo tank wall intact and capable of retaining product.
    (5) Minimum road clearance. The minimum allowable road clearance of 
any cargo tank motor vehicle component or protection device located 
between any two adjacent axles on a vehicle or vehicle combination must 
be at least one-half inch for each foot separating such axles, and in no 
case less than 12 inches.
    (b) Each outlet, projection or piping located in the lower \1/3\ of 
the cargo tank circumference (or cross section perimeter for non-
circular cargo tanks) that could be damaged in an accident that may 
result in the loss of lading must be protected by a bottom damage 
protection device, except as provided by paragraph (a)(1) of this 
section and Sec. 173.33(e) of this subchapter. Outlets, projections and 
piping may be grouped or clustered together and protected by a single 
protection device.
    (1) Any bottom damage protection device must be able to withstand a 
force of 155,000 pounds (based on the ultimate strength of the material) 
from the front, side, or rear, uniformly distributed over each surface 
of the device, over an area not to exceed 6 square feet, and a width not 
to exceed 6 feet. Suspension components and structural mounting members 
may be used to provide all, or part, of this protection. The device must 
extend no less than 6 inches beyond any component that may contain 
lading in transit.
    (2) A lading discharge opening equipped with an internal self-
closing stop-valve need not conform to paragraph (b)(1) of this section 
provided it is protected so as to reasonably assure against the 
accidental loss of lading. This protection must be provided by a 
sacrificial device located outboard of each internal self-closing stop-
valve and within 4 inches of the major radius of the cargo tank shell or 
within 4 inches of a sump, but in no case more than 8 inches from the 
major radius of the tank shell. The device must break at no more than 70 
percent of the load that would be required to cause the failure of the 
protected lading retention device, part or cargo tank wall. The failure 
of the sacrificial device must leave the protected lading retention 
device or part and its attachment to the cargo tank wall intact and 
capable of retaining product.
    (c) Each closure for openings, including but not limited to the 
manhole, filling or inspection openings, and each valve, fitting, 
pressure relief device, vapor recovery stop valve or lading retaining 
fitting located in the upper \2/3\ of a cargo tank circumference (or 
cross section perimeter for non-circular tanks) must be protected by 
being located within or between adjacent rollover damage protection 
devices, or by being 125 percent of the strength that would be provided 
by the otherwise required damage protection device.
    (1) A rollover damage protection device on a cargo tank motor 
vehicle must be designed and installed to withstand loads equal to twice 
the weight of the loaded cargo tank motor vehicle applied as follows: 
normal to the cargo tank shell (perpendicular to the cargo tank 
surface); and tangential (perpendicular to the normal load) from any 
direction. The stresses shall not exceed the ultimate strength of the 
material of construction. These design loads may be considered to be 
uniformly distributed and independently applied. If more than one 
rollover protection device is used, each device must be capable of 
carrying its proportionate share of the required loads and in each case 
at least one-fourth the total tangential load. The design must be proven 
capable of carrying the required loads by calculations, tests or a 
combination of tests and calculations.
    (2) A rollover damage protection device that would otherwise allow 
the accumulation of liquid on the top of the cargo tank, must be 
provided with a drain that directs the liquid to a safe point of 
discharge away from any structural component of the cargo tank motor 
vehicle.
    (d) Rear-end protection. Each cargo tank motor vehicle must be 
provided with a rear-end protection device to

[[Page 848]]

protect the cargo tank and piping in the event of a rear-end collision 
and reduce the likelihood of damage which could result in the loss of 
lading. The rear-end tank protection device must conform to the 
following requirements (Nothing in this paragraph shall be construed to 
relieve a manufacturer of responsibility for complying with the 
requirements of Sec. 393.86 of this title):
    (1) The rear-end cargo tank protection device must be designed so 
that it can deflect at least 6 inches horizontally forward with no 
contact between any part of the cargo tank motor vehicle which contains 
lading during transit and with any part of the rear-end protection 
device, or with a vertical plane passing through the outboard surface of 
the protection device.
    (2) The dimensions of the rear-end cargo tank protection device 
shall conform to the following:
    (i) The bottom surface of the rear-end protection device must be at 
least 4 inches below the lower surface of any part at the rear of the 
cargo tank motor vehicle which contains lading during transit and not 
more than 60 inches from the ground when the vehicle is empty.
    (ii) The maximum width of a notch, indentation, or separation 
between sections of a rear-end cargo tank protection device may not 
exceed 24 inches. A notched, indented, or separated rear-end protection 
device may be used only when the piping at the rear of the cargo tank is 
equipped with a sacrificial device outboard of a shut-off valve.
    (iii) The widest part of the motor vehicle at the rear may not 
extend more than 18 inches beyond the outermost ends of the device or 
(if separated) devices on either side of the vehicle.
    (3) The structure of the rear-end protection device and its 
attachment to the vehicle must be designed to satisfy the conditions 
specified in paragraph (d)(1) of this section when subjected to an 
impact of the cargo tank motor vehicle at rated payload, at a 
deceleration of 2 ``g''. Such impact must be considered as being 
uniformly applied in the horizontal plane at an angle of 10 degrees or 
less to the longitudinal axis of the vehicle.
    (e) Longitudinal deceleration protection. In order to account for 
stresses due to longitudinal impact in an accident, the cargo tank shell 
and heads must be able to withstand the load resulting from the design 
pressure in combination with the dynamic pressure resulting from a 
longitudinal deceleration of 2 ``g''. For this loading condition, the 
allowable stress value used may not exceed the ultimate strength of the 
material of construction using a safety factor of 1.3. Performance 
testing, analytical methods, or a combination thereof, may be used to 
prove this capability provided the methods are accurate and verifiable. 
For cargo tanks with internal baffles, the decelerative force may be 
reduced by 0.25 ``g'' for each baffle assembly, but in no case may the 
total reduction in decelerative force exceed 1.0 ``g''.
[Amdt. 178-89, 54 FR 25023, June 12, 1989, as amended at 55 FR 37061, 
Sept. 7, 1990; Amdt. 178-105, 59 FR 55175, Nov. 3, 1994; Amdt. 178-118, 
61 FR 51341, Oct. 1, 1996]



Sec. 178.345-9  Pumps, piping, hoses and connections.

    (a) Suitable means must be provided during loading or unloading 
operations to ensure that pressure within a cargo tank does not exceed 
test pressure.
    (b) Each hose, piping, stop-valve, lading retention fitting and 
closure must be designed for a bursting pressure of the greater of 100 
psig or four times the MAWP.
    (c) Each hose coupling must be designed for a bursting pressure of 
the greater of 120 psig or 4.8 times the MAWP of the cargo tank, and 
must be designed so that there will be no leakage when connected.
    (d) Suitable provision must be made to allow for and prevent damage 
due to expansion, contraction, jarring, and vibration. Slip joints may 
not be used for this purpose in the lading retention system.
    (e) Any heating device, when installed, must be so constructed that 
the breaking of its external connections will not cause leakage of the 
cargo tank lading.
    (f) Any gauging, loading or charging device, including associated 
valves, must be provided with an adequate means of secure closure to 
prevent leakage.

[[Page 849]]

    (g) The attachment and construction of each loading/unloading or 
charging line must be of sufficient strength, or be protected by a 
sacrificial device, such that any load applied by loading/unloading or 
charging lines connected to the cargo tank cannot cause damage resulting 
in loss of lading from the cargo tank.
    (h) Use of a nonmetallic pipe, valve or connection that is not as 
strong and heat resistant as the cargo tank material is authorized only 
if such attachment is located outboard of the lading retention system.
[Amdt. 178-89, 54 FR 25025, June 12, 1989, as amended at 55 FR 37061, 
Sept. 7, 1990, Amdt. 178-89, 56 FR 27877, June 17, 1991; Amdt. 178-118, 
61 FR 51341, Oct. 1, 1996]



Sec. 178.345-10  Pressure relief.

    (a) Each cargo tank must be equipped to relieve pressure and vacuum 
conditions in conformance with this section and the applicable 
individual specification. The pressure and vacuum relief system must be 
designed to operate and have sufficient capacity to prevent cargo tank 
rupture or collapse due to over-pressurization or vacuum resulting from 
loading, unloading, or from heating and cooling of lading.
    (b) Type and construction of relief systems and devices. (1) Each 
cargo tank must be provided with a primary pressure relief system 
consisting of one or more reclosing pressure relief valves. A secondary 
pressure relief system consisting of another pressure relief valve in 
parallel with the primary pressure relief system may be used to augment 
the total venting capacity of the cargo tank. Non-reclosing pressure 
relief devices are not authorized in any cargo tank except when in 
series with a reclosing pressure relief device. Gravity actuated 
reclosing valves are not authorized on any cargo tank.
    (2) When provided by Sec. 173.33(c)(1)(iii) of this subchapter, 
cargo tanks may be equipped with a normal vent. Such vents must be set 
to open at not less than 1 psig and must be designed to prevent loss of 
lading through the device in case of vehicle overturn.
    (3) Each pressure relief system must be designed to withstand 
dynamic pressure surges in excess of the design set pressure as 
specified in paragraphs (b)(3) (i) and (ii) of this section. Set 
pressure is a function of MAWP as set forth in paragraph (d) of this 
section.
    (i) Each pressure relief device must be able to withstand dynamic 
pressure surge reaching 30 psig above the design set pressure and 
sustained above the set pressure for at least 60 milliseconds with a 
total volume of liquid released not exceeding one gallon before the 
relief device recloses to a leak-tight condition. This requirement must 
be met regardless of vehicle orientation. This capability must be 
demonstrated by testing. An acceptable test procedure is outlined in 
TTMA RP No. 81--``Performance of Spring Loaded Pressure Relief Valves on 
MC 306, MC 307, and MC 312 Tanks,'' May 24, 1989 edition.
    (ii) After August 31, 1995, each pressure relief device must be able 
to withstand a dynamic pressure surge reaching 30 psig above the design 
set pressure and sustained above the design set pressure for at least 60 
milliseconds with a total volume of liquid released not exceeding one 
liter before the relief valve recloses to a leak-tight condition. This 
requirement must be met regardless of vehicle orientation. This 
capability must be demonstrated by testing. TTMA RP No. 81, cited in 
paragraph (b)(3)(i) of this section, is an acceptable test procedure.
    (4) Each reclosing pressure relief valve must be constructed and 
installed in such a manner as to prevent unauthorized adjustment of the 
relief valve setting.
    (5) No shut-off valve or other device that could prevent venting 
through the pressure relief system may be installed in a pressure relief 
system.
    (6) The pressure relief system must be mounted, shielded and 
drainable so as to minimize the accumulation of material that could 
impair the operation or discharge capability of the system by freezing, 
corrosion or blockage.
    (c) Location of relief devices. Each pressure relief device must 
communicate with the vapor space above the lading as near as practicable 
to the center of the vapor space. For example, on a cargo tank designed 
to operate in a level attitude, the device should be positioned at the 
horizontal and transverse center of the cargo tank; on

[[Page 850]]

cargo tanks sloped to the rear, the device should be located in the 
forward half of the cargo tank. The discharge from any device must be 
unrestricted. Protective devices which deflect the flow of vapor are 
permissible provided the required vent capacity is maintained.
    (d) Settings of pressure relief system. The set pressure of the 
pressure relief system is the pressure at which it starts to open, 
allowing discharge.
    (1) Primary pressure relief system. The set pressure of each primary 
relief valve must be no less than 120 percent of the MAWP, and no more 
than 132 percent of the MAWP. The valve must reclose at not less than 
108 percent of the MAWP and remain closed at lower pressures.
    (2) Secondary pressure relief system. The set pressure of each 
pressure relief valve used as a secondary relief device must be not less 
than 120 percent of the MAWP.
    (e) Venting capacity of pressure relief systems. The pressure relief 
system (primary and secondary, including piping) must have sufficient 
venting capacity to limit the cargo tank internal pressure to not more 
than the cargo tank test pressure. The total venting capacity, rated at 
not more than the cargo tank test pressure, must be at least that 
specified in Table I, except as provided in Sec. 178.348-10(d).

                Table I.--Minimum Emergency Vent Capacity               
          [In cubic feet free air/hour at 60  deg.F and 1 atm.]         
------------------------------------------------------------------------
                                                              Cubic feet
                Exposed area in square feet                    free air 
                                                               per hour 
------------------------------------------------------------------------
20.........................................................       15,800
30.........................................................       23,700
40.........................................................       31,600
50.........................................................       39,500
60.........................................................       47,400
70.........................................................       55,300
80.........................................................       63,300
90.........................................................       71,200
100........................................................       79,100
120........................................................       94,900
140........................................................      110,700
160........................................................      126,500
180........................................................      142,300
200........................................................      158,100
225........................................................      191,300
250........................................................      203,100
275........................................................      214,300
300........................................................      225,100
350........................................................      245,700
400........................................................      265,000
450........................................................      283,200
500........................................................      300,600
550........................................................      317,300
600........................................................      333,300
650........................................................      348,800
700........................................................      363,700
750........................................................      378,200
800........................................................      392,200
850........................................................      405,900
900........................................................      419,300
950........................................................      432,300
1,000......................................................     445,000 
------------------------------------------------------------------------
Note 1: Interpolate for intermediate sizes.                             

    (1) Primary pressure relief system. Unless otherwise specified in 
the applicable individual specification, the primary relief system must 
have a minimum venting capacity of 12,000 SCFH per 350 square feet of 
exposed cargo tank area, but in any case at least one fourth the 
required total venting capacity for the cargo tank.
    (2) Secondary pressure relief system. If the primary pressure relief 
system does not provide the required total venting capacity, additional 
capacity must be provided by a secondary pressure relief system.
    (f) Certification of pressure relief devices. The manufacturer of 
any pressure relief device, including valves, frangible (rupture) disks, 
vacuum vents and combination devices must certify that the device model 
was designed and tested in accordance with this section and the 
appropriate cargo tank specification. The certificate must contain 
sufficient information to describe the device and its performance. The 
certificate must be signed by a responsible official of the manufacturer 
who approved the flow capacity certification.
    (g) Rated flow capacity certification test. Each pressure relief 
device model must be successfully flow capacity certification tested 
prior to first use. Devices having one design, size and set pressure are 
considered to be one model. The testing requirements are as follows:
    (1) At least 3 devices of each specific model must be tested for 
flow capacity at a pressure not greater than the test

[[Page 851]]

pressure of the cargo tank. For a device model to be certified, the 
capacities of the devices tested must fall within a range of plus or 
minus 5 percent of the average for the devices tested.
    (2) The rated flow capacity of a device model may not be greater 
than 90 percent of the average value for the devices tested.
    (3) The rated flow capacity derived for each device model must be 
certified by a responsible official of the device manufacturer.
    (h) Marking of pressure relief devices. Each pressure relief device 
must be permanently marked with the following:
    (1) Manufacturer's name;
    (2) Model number;
    (3) Set pressure, in psig; and
    (4) Rated flow capacity, in SCFH at the rating pressure, in psig.
[Amdt. 178-89, 54 FR 25025, June 12, 1989, as amended at 55 FR 21038, 
May 22, 1990; 55 FR 37062, Sept. 7, 1990; Amdt. 178-89, 56 FR 27877, 
June 17, 1991; Amdt. 178-105, 59 FR 55175, Nov. 3, 1994; Amdt. 178-118, 
61 FR 51341, Oct. 1, 1996]



Sec. 178.345-11  Tank outlets.

    (a) General. As used in this section, ``loading/unloading outlet'' 
means any opening in the cargo tank wall used for loading or unloading 
of lading, as distinguished from outlets such as manhole covers, vents, 
vapor recovery devices, and similar closures. Cargo tank outlets, 
closures and associated piping must be protected in accordance with 
Sec. 178.345-8.
    (b) Each cargo tank loading/unloading outlet must be equipped with 
an internal self-closing stop-valve, or alternatively, with an external 
stop-valve located as close as practicable to the cargo tank wall. Each 
cargo tank loading/unloading outlet must be in accordance with the 
following provisions:
    (1) Each loading/unloading outlet must be fitted with a self-closing 
system capable of closing all such outlets in an emergency within 30 
seconds of actuation. During normal operations the outlets may be closed 
manually. The self-closing system must be designed according to the 
following:
    (i) Each self-closing system must include a remotely actuated means 
of closure located more than 10 feet from the loading/unloading outlet 
where vehicle length allows, or on the end of the cargo tank farthest 
away from the loading/unloading outlet. The actuating mechanism must be 
corrosion-resistant and effective in all types of environment and 
weather.
    (ii) If the actuating system is accidentally damaged or sheared off 
during transportation, each loading/unloading outlet must remain 
securely closed and capable of retaining lading.
    (iii) When required by part 173 of this subchapter for materials 
which are flammable, pyrophoric, oxidizing, or Division 6.1 (poisonous 
liquid) materials, the remote means of closure must be capable of 
thermal activation. The means by which the self-closing system is 
thermally activated must be located as close as practicable to the 
primary loading/unloading connection and must actuate the system at a 
temperature not over 250 deg. F. In addition, outlets on these cargo 
tanks must be capable of being remotely closed manually or mechanically.
    (2) Bottom loading outlets which discharge lading into the cargo 
tank through fixed internal piping above the maximum liquid level of the 
cargo tank need not be equipped with a self-closing system.
    (c) Any loading/unloading outlet extending beyond an internal self-
closing stop-valve, or beyond the innermost external stop-valve which is 
part of a self-closing system, must be fitted with another stop-valve or 
other leak-tight closure at the end of such connection.
    (d) Each cargo tank outlet that is not a loading/unloading outlet 
must be equipped with a stop-valve or other leak-tight closure located 
as close as practicable to the cargo tank outlet. Any connection 
extending beyond this closure must be fitted with another stop-valve or 
other leak-tight closure at the end of such connection.
[Amdt. 178-89, 56 FR 27877, June 17, 1991, as amended by Amdt. 178-97, 
57 FR 45465, Oct. 1, 1992; Amdt. 178-118, 61 FR 51341, Oct. 1, 1996]



Sec. 178.345-12  Gauging devices.

    Each cargo tank, except a cargo tank intended to be filled by 
weight, must be equipped with a gauging device that indicates the 
maximum permitted liquid

[[Page 852]]

level to within 0.5 percent of the nominal capacity as measured by 
volume or liquid level. Gauge glasses are not permitted.
[Amdt. 178-89, 55 FR 37062, Sept. 7, 1990, as amended by Amdt. 178-118, 
61 FR 51342, Oct. 1, 1996]



Sec. 178.345-13  Pressure and leakage tests.

    (a) Each cargo tank must be pressure and leakage tested in 
accordance with this section and Secs. 178.346-13(a), 178.347-13(a) or 
178.348-13(a), as applicable.
    (b) Pressure test. Each cargo tank or cargo tank compartment must be 
tested hydrostatically or pneumatically. Each cargo tank of a multi-
cargo tank motor vehicle must be tested with the adjacent cargo tanks 
empty and at atmospheric pressure. Each closure, except pressure relief 
devices and loading/unloading venting devices rated at less than the 
prescribed test pressure, must be in place during the test. If the 
venting device is not removed during the test, such device must be 
rendered inoperative by a clamp, plug or other equally effective 
restraining device, which may not prevent the detection of leaks, or 
damage the device. Restraining devices must be removed immediately after 
the test is completed.
    (1) Hydrostatic method. Each cargo tank, including its domes, must 
be filled with water or other liquid having similar viscosity, the 
temperature of which may not exceed 100  deg.F. The cargo tank must then 
be pressurized as prescribed in the applicable specification. The 
pressure must be gauged at the top of the cargo tank. The prescribed 
test pressure must be maintained for at least 10 minutes during which 
time the cargo tank must be inspected for leakage, bulging, or other 
defect.
    (2) Pneumatic method. A pneumatic test may be used in place of the 
hydrostatic test. However, pneumatic pressure testing may involve higher 
risk than hydrostatic testing. Therefore, suitable safeguards must be 
provided to protect personnel and facilities should failure occur during 
the test. The cargo tank must be pressurized with air or an inert gas. 
Test pressure must be reached gradually by increasing the pressure to 
one half of test pressure. Thereafter, the pressure must be increased in 
steps of approximately one tenth of the test pressure until test 
pressure is reached. Test pressure must be held for at least 5 minutes. 
The pressure must then be reduced to the inspection pressure which must 
be maintained while the entire cargo tank surface is inspected for 
leakage and other sign of defects. The inspection method must consist of 
coating all joints and fittings with a solution of soap and water or 
other equally sensitive method.
    (c) Leakage test. The cargo tank with all its accessories in place 
and operable must be leak tested at not less than 80 percent of tank's 
MAWP with the pressure maintained for at least 5 minutes.
    (d) Any cargo tank that leaks, bulges or shows any other sign of 
defect must be rejected. Rejected cargo tanks must be suitably repaired 
and retested successfully prior to being returned to service. The retest 
after any repair must use the same method of test under which the cargo 
tank was originally rejected.
[Amdt. 178-89, 54 FR 25026, June 12, 1989, as amended at 55 FR 37063, 
Sept. 7, 1990; Amdt. 178-105, 59 FR 55176, Nov. 3, 1994; Amdt. 178-118, 
61 FR 51342, Oct. 1, 1996]



Sec. 178.345-14  Marking.

    (a) General. The manufacturer shall certify that each cargo tank 
motor vehicle has been designed, constructed and tested in accordance 
with the applicable Specification DOT 406, DOT 407 or DOT 412 
(Secs. 178.345, 178.346, 178.347, 178.348) cargo tank requirements, and 
when applicable, with the ASME Code. The certification shall be 
accomplished by marking the cargo tank as prescribed in paragraphs (b) 
and (c) of this section, and by preparing the certificate prescribed in 
Sec. 178.345-15. Metal plates prescribed by paragraphs (b), (c), (d) and 
(e) of this section, must be permanently attached to the cargo tank or 
its integral supporting structure, by brazing, welding or other suitable 
means. These plates must be affixed on the left side of the vehicle near 
the front of the cargo tank (or the frontmost cargo tank of a multi-
cargo tank motor vehicle), in a place readily accessible for inspection. 
The plates must be permanently and plainly

[[Page 853]]

marked in English by stamping, embossing or other means in characters at 
least \3/16\ inch high. The information required by paragraphs (b) and 
(c) of this section may be combined on one specification plate.
    (b) Nameplate. Each cargo tank must have a corrosion resistant 
nameplate permanently attached to it. The following information, in 
addition to any applicable information required by the ASME Code, must 
be marked on the tank nameplate (parenthetical abbreviations may be 
used):
    (1) DOT Specification number DOT XXX (DOT XXX), where ``XXX'' is 
replaced with the applicable specification number.
    (2) Original test date, month and year (Orig. Test Date).
    (3) Tank maximum allowable working pressure (MAWP) in psig.
    (4) Cargo tank test pressure (Test P), in psig.
    (5) Cargo tank design temperature range (Design temp. range),____ 
deg.F to ____  deg.F.
    (6) Nominal capacity (Water cap.), in gallons.
    (7) Maximum design density of lading (Max. lading density), in 
pounds per gallon.
    (8) Material specification number--shell (Shell matl, yyy***), where 
``yyy'' is replaced by the alloy designation and ``***'' by the alloy 
type.
    (9) Material specification number--heads (Head matl, yyy***), where 
``yyy'' is replaced by the alloy designation and ``***'' by the alloy 
type.

    Note .-- When the shell and heads materials are the same thickness, 
they may be combined, (Shell&head matl, yyy***).

    (10) Weld material (Weld matl.).
    (11) Minimum thickness--shell (Min. shell-thick), in inches. When 
minimum shell thicknesses are not the same for different areas, show 
(top __, side __, bottom __, in inches).
    (12) Minimum thickness--heads (Min. heads thick.), in inches.
    (13) Manufactured thickness--shell (Mfd. shell thick.), top __, side 
__, bottom __, in inches. (Required when additional thickness is 
provided for corrosion allowance.)
    (14) Manufactured thickness--heads (Mfd. heads thick.), in inches. 
(Required when additional thickness is provided for corrosion 
allowance.)
    (15) Exposed surface area, in square feet.
    (c) Specification plate. Each cargo tank motor vehicle must have an 
additional corrosion resistant metal specification plate attached to it. 
The specification plate must contain the following information 
(parenthetical abbreviations may be used):
    (1) Cargo tank motor vehicle manufacturer (CTMV mfr.).
    (2) Cargo tank motor vehicle certification date (CTMV cert. date), 
if different from the cargo tank certification date.
    (3) Cargo tank manufacturer (CT mfr.).
    (4) Cargo tank date of manufacture (CT date of mfr.), month and 
year.
    (5) Maximum weight of lading (Max. payload), in pounds.
    (6) Maximum loading rate in gallons per minute (Max. load rate, GPM) 
at maximum loading pressure ____ psig.
    (7) Maximum unloading rate in gallons per minute (Max. unload rate, 
GPM), at maximum unloading pressure ____ psig.
    (8) Lining material (Lining), if applicable.
    (9) Heating system design pressure (Heating sys. press.), in psig, 
if applicable.
    (10) Heating system design temperature (Heating sys. temp.), in 
deg.F, if applicable.
    (d) Multi-cargo tank motor vehicle. For a multi-cargo tank motor 
vehicle having all its cargo tanks not separated by any void, the 
information required by paragraphs (b) and (c) of this section may be 
combined on one specification plate. When separated by a void, each 
cargo tank must have an individual nameplate as required in paragraph 
(b) of this section, unless all cargo tanks are made by the same 
manufacturer with the same materials, manufactured thickness, minimum 
thickness and to the same specification. The cargo tank motor vehicle 
may have a combined nameplate and specification plate. When only one 
plate is used, the plate must be visible and not covered by insulation. 
The required information must be listed on the plate from front

[[Page 854]]

to rear in the order of the corresponding cargo tank location.
    (e) Variable specification cargo tank. Each variable specification 
cargo tank must have a corrosion resistant metal variable specification 
plate attached to it. The mounting of this variable specification plate 
must be such that only the plate identifying the applicable 
specification under which the tank is being operated is legible.
    (1) The following information must be included (parenthetical 
abbreviations are authorized):

    Specification DOT XXX (DOT XXX), where ``XXX'' is replaced with the 
applicable specification number.

                                                                        
                                                                        
            Equipment required                  Required rating \1\     
                                                                        
Pressure relief devices:                                                
    Pressure actuated type...............  ____________                 
    Frangible type.......................  ____________                 
    Lading discharge devices.............  ____________                 
    Top..................................  ____________                 
    Bottom...............................  ____________                 
    Pressure unloading fitting...........  ____________                 
Closures:                                                               
    Manhole..............................  ____________                 
    Fill openings........................  ____________                 
    Discharge openings...................  ____________                 
                                                                        
\1\ Required rating--to meet the applicable specification.              

    (2) If no change of information in the specification plate is 
required, the letters ``NC'' must follow the rating required. If the 
cargo tank is not so equipped, the word ``None'' must be inserted.
    (3) Those parts to be changed or added must be stamped with the 
appropriate MC or DOT Specification markings.
    (4) The alterations that must be made in order for the tank to be 
modified from one specification to another must be clearly indicated on 
the manufacturer's certificate and on the variable specification plate.
[Amdt. 178-89, 54 FR 25027, June 12, 1989, as amended at 55 FR 37063, 
Sept. 7, 1990; Amdt. 178-99, 58 FR 51534, Oct. 1, 1993; Amdt. 178-104, 
59 FR 49135, Sept. 26, 1994; Amdt. 178-105, 59 FR 55176, Nov. 3, 1994; 
60 FR 17402, Apr. 5, 1995; Amdt. 178-118, 61 FR 51342, Oct. 1, 1996]



Sec. 178.345-15  Certification.

    (a) At or before the time of delivery, the manufacturer of a cargo 
tank motor vehicle must provide certification documents to the owner of 
the cargo tank motor vehicle. The registration numbers of the 
manufacturer, the Design Certifying Engineer, and the Registered 
Inspector, as appropriate, must appear on the certificates (see subpart 
F, part 107 in subchapter A of this chapter).
    (b) The manufacturer of a cargo tank motor vehicle made to any of 
these specifications must provide:
    (1) For each design type, a certificate signed by a responsible 
official of the manufacturer and a Design Certifying Engineer certifying 
that the cargo tank motor vehicle design meets the applicable 
specification; and
    (2) For each ASME cargo tank, a cargo tank manufacturer's data 
report as required by the ASME Code. For each cargo tank motor vehicle, 
a certificate signed by a responsible official of the manufacturer and a 
Registered Inspector certifying that the cargo tank motor vehicle is 
constructed, tested and completed in conformance with the applicable 
specification.
    (c) The manufacturer of a variable specification cargo tank motor 
vehicle must provide:
    (1) For each design type, a certificate signed by a responsible 
official of the manufacturer and a Design Certifying Engineer certifying 
that the cargo tank motor vehicle design meets the applicable 
specifications; and
    (2) For each variable specification cargo tank motor vehicle, a 
certificate signed by a responsible official of the manufacturer and a 
Registered Inspector certifying that the cargo tank motor vehicle is 
constructed, tested and completed in conformance with the applicable 
specifications. The certificate must include all the information 
required and marked on the variable specification plate.
    (d) In the case of a cargo tank motor vehicle manufactured in two or 
more stages, each manufacturer who performs a manufacturing operation on 
the incomplete vehicle or portion thereof shall provide to the 
succeeding manufacturer, at or before the time of delivery, a 
certificate covering the particular operation performed by that

[[Page 855]]

manufacturer, including any certificates received from previous 
manufacturers, Registered Inspectors, and Design Certifying Engineers. 
Each certificate must indicate the portion of the complete cargo tank 
motor vehicle represented thereby, such as basic cargo tank fabrication, 
insulation, jacket, lining, or piping. The final manufacturer shall 
provide all applicable certificates to the owner.
    (e) Specification shortages. If a cargo tank is manufactured which 
does not meet all applicable specification requirements, thereby 
requiring subsequent manufacturing involving the installation of 
additional components, parts, appurtenances or accessories, the cargo 
tank manufacturer may affix the name plate and specification plate, as 
required by Sec. 178.345-14 (b) and (c), without the original date of 
certification stamped on the specification plate. The manufacturer shall 
state the specification requirements not complied with on the 
manufacturer's Certificate of Compliance. When the cargo tank is brought 
into full compliance with the applicable specification, the Registered 
Inspector shall stamp the date of compliance on the specification plate. 
The Registered Inspector shall issue a Certificate of Compliance stating 
details of the particular operations performed on the cargo tank, and 
the date and person (manufacturer, carrier, or repair organization) 
accomplishing the compliance.
[Amdt. 178-89, 55 FR 37063, Sept. 7, 1990, as amended by Amdt. 178-98, 
58 FR 33306, June 16, 1993; Amdt. 178-105, 59 FR 55176, Nov. 3, 1994; 
Amdt. 178-118, 61 FR 51342, Oct. 1, 1996]



Sec. 178.346  Specification DOT 406; cargo tank motor vehicle.



Sec. 178.346-1  General requirements.

    (a) Each Specification DOT 406 cargo tank motor vehicle must meet 
the general design and construction requirements in Sec. 178.345, in 
addition to the specific requirements contained in this section.
    (b) Maximum Allowable Working Pressure: The MAWP of each cargo tank 
must be no lower than 2.65 psig and no higher than 4 psig.
    (c) Vacuum loaded cargo tanks must not be constructed to this 
specification.
    (d) Each cargo tank must be ``constructed in accordance with the 
ASME Code'' except as modified herein:
    (1) The record-keeping requirements contained in the ASME Code 
Section VIII, Division I do not apply. Parts UG-90 thru 94 of Section 
VIII, Division I do not apply. Inspection and certification must be made 
by an inspector registered in accordance with subpart F of part 107.
    (2) Loadings must be as prescribed in Sec. 178.346-3.
    (3) The knuckle radius of flanged heads must be at least three times 
the material thickness, and in no case less than 0.5 inch. Stuffed 
(inserted) heads may be attached to the shell by a fillet weld. The 
knuckle radius and dish radius versus diameter limitations of UG-32 do 
not apply. Shell sections of cargo tanks designed with a non-circular 
cross section need not be given a preliminary curvature, as prescribed 
in UG-79(b).
    (4) Marking, certification, data reports, and nameplates must be as 
prescribed in Secs. 178.345-14, 178.346-14, 178.345-15, and 178.346-15.
    (5) Manhole closure assemblies must conform to Secs. 178.345-5 and 
178.346-5.
    (6) Pressure relief devices must be as prescribed in Secs. 178.345-
10 and 178.346-10.
    (7) The hydrostatic or pneumatic test must be as prescribed in 
Secs. 178.345-13 and 178.346-13.
    (8) The following paragraphs in parts UG and UW of the ASME Code, 
Section VIII, Division I do not apply: UG-11, UG-12, UG-22(g), UG-32(e), 
UG-34, UG-35, UG-44, UG-76, UG-77, UG-80, UG-81, UG-96, UG-97, UW-
13(b)(2), UW-13.1(f) and the dimensional requirements found in Figure 
UW-13.1.
    (9) Single full fillet lap joints without plug welds may be used for 
arc or gas welded longitudinal seams without radiographic examination 
under the following conditions:
    (i) For a truck-mounted cargo tank, no more than two such joints may 
be used on the top half of the tank and no more than two joints may be 
used on the bottom half. They may not be located farther from the top 
and bottom

[[Page 856]]

centerline than 16 percent of the shell's circumference.
    (ii) For a self-supporting cargo tank, no more than two such joints 
may be used on the top of the tank. They may not be located farther from 
the top centerline than 12.5 percent of the shell's circumference.
    (iii) Compliance test. Two test specimens of the material to be used 
in the manufacture of a cargo tank must be tested to failure in tension. 
The test specimens must be of the same thicknesses and joint 
configuration as the cargo tank, and joined by the same welding 
procedures. The test specimens may represent all the tanks that are made 
of the same materials and welding procedures, have the same joint 
configuration, and are made in the same facility within 6 months after 
the tests are completed. Before welding, the fit-up of the joints on the 
test specimens must represent production conditions that would result in 
the least joint strength. Evidence of joint fit-up and test results must 
be retained at the manufacturers' facility.
    (iv) Weld joint efficiency. The lower value of stress at failure 
attained in the two tensile test specimens shall be used to compute the 
efficiency of the joint as follows: Determine the failure ratio by 
dividing the stress at failure by the mechanical properties of the 
adjacent metal; this value, when multiplied by 0.75, is the design weld 
joint efficiency.
    (10) The requirements of paragraph UW-9(d), of Section VIII, 
Division 1, ASME Code do not apply.
[Amdt. 178-89, 54 FR 25028, June 12, 1989, as amended at 55 FR 37063, 
Sept. 7, 1990; Amdt. 178-89, 56 FR 27877, June 17, 1991; Amdt. 178-105, 
59 FR 55176, Nov. 3, 1994]



Sec. 178.346-2  Material and thickness of material.

    The type and thickness of material for DOT 406 cargo tank motor 
vehicles must conform to Sec. 178.345-2 of this part, but may in no case 
be less than that indicated in Tables I and II below.

Table I.--Minimum Thickness of Heads (or Bulkheads and Baffles When Used as Tank Reinforcement) Using Mild Steel
   (MS), High Strength Low Alloy Steel (HSLA), Austenitic Stainless Steel (SS) or Aluminum (AL)--Expressed in   
                                        Decimals of an Inch After Forming                                       
----------------------------------------------------------------------------------------------------------------
                                                  Volume capacity in gallons per inch of length                 
                                --------------------------------------------------------------------------------
            Material                     14 or less               Over 14 to 23                 Over 23         
                                --------------------------------------------------------------------------------
                                    MS    HSLA SS     AL       MS    HSLA SS     AL       MS    HSLA SS     AL  
----------------------------------------------------------------------------------------------------------------
Thickness......................     .100     .100     .160     .115     .115     .173     .129     .129     .187
----------------------------------------------------------------------------------------------------------------


    Table II.--Minimum Thickness of Shell Using Mild Steel (MS), High   
   Strength Low Alloy Steel (HSLA), Austenitic Stainless Steel (SS) or  
    Aluminum (AL)--Expressed in Decimals of an Inch After Forming \1\   
------------------------------------------------------------------------
 Cargo tank motor vehicle rated capacity                                
                (gallons)                     MS      SS/HSLA      AL   
------------------------------------------------------------------------
More than 0 to at least 4,500............     0.100      0.100     0.151
More than 4,500 to at least 8,000........     0.115      0.100     0.160
More than 8,000 to at least 14,000.......     0.129      0.129     0.173
More than 14,000.........................     0.143      0.143    0.187 
------------------------------------------------------------------------
\1\ Maximum distance between bulkheads, baffles, or ring stiffeners     
  shall not exceed 60 inches.                                           

[Amdt. 178-89, 54 FR 25028, June 12, 1989, as amended at 55 FR 37064, 
Sept. 7, 1990; Amdt. 178-105, 59 FR 55176, Nov. 3, 1994]



Sec. 178.346-3  Pressure relief.

    (a) Each cargo tank must be equipped with a pressure relief system 
in accordance with Sec. 178.345-10 and this section.
    (b) Type and construction. In addition to the pressure relief 
devices required in Sec. 178.345-10:
    (1) Each cargo tank must be equipped with one or more vacuum relief 
devices;
    (2) When intended for use only for lading meeting the requirements 
of Sec. 173.33(c)(1)(iii) of this subchapter, the cargo tank may be 
equipped with a normal vent. Such vents must be set to open at not less 
than 1 psig and must be designed to prevent loss of lading through the 
device in case of vehicle upset; and

[[Page 857]]

    (3) Notwithstanding the requirements in Sec. 178.345-10(b), after 
August 31, 1996, each pressure relief valve must be able to withstand a 
dynamic pressure surge reaching 30 psig above the design set pressure 
and sustained above the set pressure for at least 60 milliseconds with a 
total volume of liquid released not exceeding one liter before the 
relief valve recloses to a leak-tight condition. This requirement must 
be met regardless of vehicle orientation. This capability must be 
demonstrated by testing. TTMA RP No. 81, cited at Sec. 178.345-
10(b)(3)(i), is an acceptable test procedure.
    (c) Pressure settings of relief valves.
    (1) Notwithstanding the requirements in Sec. 178.345-10(d), the set 
pressure of each primary relief valve must be not less than 110 percent 
of the MAWP or 3.3 psig, whichever is greater, and not more than 138 
percent of the MAWP. The valve must close at not less than the MAWP and 
remain closed at lower pressures.
    (2) Each vacuum relief device must be set to open at no more than 6 
ounces vacuum.
    (d) Venting capacities. (1) Notwithstanding the requirements in 
Sec. 178.345-10 (e) and (g), the primary pressure relief valve must have 
a venting capacity of at least 6,000 SCFH, rated at not greater than 125 
percent of the tank test pressure and not greater than 3 psig above the 
MAWP. The venting capacity required in Sec. 178.345-10(e) may be rated 
at these same pressures.
    (2) Each vacuum relief system must have sufficient capacity to limit 
the vacuum to 1 psig.
    (3) If pressure loading or unloading devices are provided, the 
relief system must have adequate vapor and liquid capacity to limit the 
tank pressure to the cargo tank test pressure at maximum loading or 
unloading rate. The maximum loading and unloading rates must be included 
on the metal specification plate.
[Amdt. 178-89, 54 FR 25029, June 12, 1989, as amended at 55 FR 37064, 
Sept. 7, 1990; Amdt. 178-105, 59 FR 55176, Nov. 3, 1994. Redesignated by 
Amdt. 178-112, 61 FR 18934, Apr. 29, 1996]



Sec. 178.346-4  Outlets.

    (a) All outlets on each tank must conform to Sec. 178.345-11 and 
this section.
    (b) External self-closing stop-valves are not authorized as an 
alternative to internal self-closing stop-valves on loading/unloading 
outlets.
[Amdt. 178-89, 54 FR 25029, June 12, 1989. Redesignated by Amdt. 178-
112, 61 FR 18934, Apr. 29, 1996]



Sec. 178.346-5  Pressure and leakage tests.

    (a) Each cargo tank must be tested in accordance with Sec. 178.345-
13 and this section.
    (b) Pressure test. Test pressure must be as follows:
    (1) Using the hydrostatic test method, the test pressure must be the 
greater of 5.0 psig or 1.5 times the cargo tank MAWP.
    (2) Using the pneumatic test method, the test pressure must be the 
greater of 5.0 psig or 1.5 times the cargo tank MAWP, and the inspection 
pressure must be the cargo tank MAWP.
    (c) Leakage test. Cargo tanks equipped with vapor collection 
equipment may be leakage tested in accordance with the Environmental 
Protection Agency's ``Method 27--Determination of Vapor Tightness of 
Gasoline Delivery Tank Using Pressure-Vacuum Test,'' as set forth in 40 
CFR Part 60, Appendix A. Acceptance criteria are found at 40 CFR 60.501 
and 60.601.
[Amdt. 178-89, 54 FR 25029, June 12, 1989, as amended at 55 FR 37064, 
Sept. 7, 1990; Amdt. 178-105, 59 FR 55176, Nov. 3, 1994. Redesignated by 
Amdt. 178-112, 61 FR 18934, Apr. 29, 1996]



Sec. 178.347  Specification DOT 407; cargo tank motor vehicle.



Sec. 178.347-1  General requirements.

    (a) Each specification DOT 407 cargo tank motor vehicle must conform 
to the general design and construction requirements in Sec. 178.345 in 
addition to the specific requirements contained in this section.
    (b) Each tank must be of a circular cross-section and have an MAWP 
of at least 25 psig.
    (c) Any cargo tank built to this specification with a MAWP greater 
than 35 psig and each tank designed to be loaded by vacuum must be 
``constructed

[[Page 858]]

and certified in accordance with the ASME Code ''. The external design 
pressure for a cargo tank loaded by vacuum must be at least 15 psi.
    (d) Each cargo tank built to this specification with MAWP of 35 psig 
or less must be ``constructed in accordance with the ASME Code'' except 
as modified herein:
    (1) The record-keeping requirements contained in the ASME Code, 
Section VIII, Division I, do not apply. The inspection requirements of 
parts UG-90 thru 94 do not apply. Inspection and certification must be 
made by an inspector registered in accordance with subpart F of part 
107.
    (2) Loadings must be as prescribed in Sec. 178.347-3.
    (3) The knuckle radius of flanged heads must be at least three times 
the material thickness, and in no case less than 0.5 inch. Stuffed 
(inserted) heads may be attached to the shell by a fillet weld. The 
knuckle radius and dish radius versus diameter limitations of UG-32 do 
not apply for cargo tank motor vehicles with a MAWP of 35 psig or less.
    (4) Marking, certification, data reports and nameplates must be as 
prescribed in Secs. 178.345-14, 178.347-14, 178.345-15, and 178.347-15.
    (5) Manhole closure assemblies must conform to Secs. 178.345-5 and 
178.347-5.
    (6) Pressure relief devices must be as prescribed in Secs. 178.345-
10 and 178.347-10.
    (7) The hydrostatic or pneumatic test must be as prescribed in 
Secs. 178.345-13 and 178.347-13.
    (8) The following paragraphs in parts UG and UW of the ASME Code, 
Section VIII, Division I do not apply: UG-11, UG-12, UG-22(g), UG-32(e), 
UG-34, UG-35, UG-44, UG-76, UG-77, UG-80, UG-81, UG-96, UG-97, UW-
13(b)(2), UW-13.1(f), and the dimensional requirements found in Figure 
UW-13.1.
[Amdt. 178-89, 54 FR 25029, June 12, 1989, as amended at 55 FR 37064, 
Sept. 7, 1990; Amdt. 178-89, 56 FR 27877, June 17, 1991]



Sec. 178.347-2  Material and thickness of material.

    (a) The type and thickness of material for DOT 407 specification 
cargo tanks must conform to Sec. 178.345-2 and this section. In no case 
may the thickness be less than that indicated in Tables I and II below.

Table I.--Minimum Thickness of Heads (or Bulkheads and Baffles When Used as Tank Reinforcement) Using Mild Steel
   (MS), High Strength Low Alloy Steel (HSLA), Austenitic Stainless Steel (SS) or Aluminum (AL)--Expressed in   
                                        Decimals of an Inch After Forming                                       
----------------------------------------------------------------------------------------------------------------
                                              10 or    Over 10   Over 14   Over 18   Over 22   Over 26          
    Volume capacity in gallons per inch       less      to 14     to 18     to 22     to 26     to 30    Over 30
----------------------------------------------------------------------------------------------------------------
Thickness (MS)............................     0.100     0.100     0.115     0.129     0.129     0.143     0.156
Thickness (HSLA)..........................     0.100     0.100     0.115     0.129     0.129     0.143     0.156
Thickness (SS)............................     0.100     0.100     0.115     0.129     0.129     0.143     0.156
Thickness (AL)............................     0.160     0.160     0.173     0.187     0.194     0.216     0.237
----------------------------------------------------------------------------------------------------------------


  Table II.--Minimum Thickness of Shell Using Mild Steel (MS), High Strength Low Alloy Steel (HSLA), Austenitic 
              Stainless Steel (SS) or Aluminum (AL)--Expressed in Decimals of an Inch After Forming             
----------------------------------------------------------------------------------------------------------------
                                              10 or    Over 10   Over 14   Over 18   Over 22   Over 26          
    Volume capacity in gallons per inch       less      to 14     to 18     to 22     to 26     to 30    Over 30
----------------------------------------------------------------------------------------------------------------
Thickness (MS)............................     0.100     0.100     0.115     0.129     0.129     0.143     0.156
Thickness (HSLA)..........................     0.100     0.100     0.115     0.129     0.129     0.143     0.156
Thickness (SS)............................     0.100     0.100     0.115     0.129     0.129     0.143     0.156
Thickness (AL)............................     0.151     0.151     0.160     0.173     0.194     0.216     0.237
----------------------------------------------------------------------------------------------------------------

[Amdt. 178-89, 54 FR 25030, June 12, 1989, as amended at 55 FR 37064, 
Sept. 7, 1990; Amdt. 178-104, 59 FR 49135, Sept. 26, 1994]

[[Page 859]]



Sec. 178.347-3  Manhole assemblies.

    Each manhole assembly must conform to Sec. 178.345-5, except that 
each manhole assembly must be capable of withstanding internal fluid 
pressures of 40 psig or test pressure of the tank, whichever is greater.
[Amdt. 178-89, 54 FR 25030, June 12, 1989. Redesignated by Amdt. 178-
112, 61 FR 18934, Apr. 29, 1996]



Sec. 178.347-4  Pressure relief.

    (a) Each cargo tank must be equipped with a pressure and vacuum 
relief system in accordance with Sec. 178.345-10 and this section.
    (b) Type and Construction. Vacuum relief devices are not required 
for cargo tanks designed to be loaded by vacuum or built to withstand 
full vacuum.
    (c) Pressure settings of relief valves. The setting of pressure 
relief valves must be in accordance with Sec. 178.345-10(d).
    (d) Venting capacities. (1) The vacuum relief system must limit the 
vacuum to less than 80 percent of the design vacuum capability of the 
cargo tank.
    (2) If pressure loading or unloading devices are provided, the 
relief system must have adequate vapor and liquid capacity to limit the 
tank pressure to the cargo tank test pressure at maximum loading or 
unloading rate. The maximum loading or unloading rate must be included 
on the metal specification plate.
[Amdt. 178-89, 54 FR 25030, June 12, 1989, as amended at 55 FR 37064, 
Sept. 7, 1990. Redesignated by Amdt. 178-112, 61 FR 18934, Apr. 29, 
1996]



Sec. 178.347-5  Pressure and leakage test.

    (a) Each cargo tank must be tested in accordance with Sec. 178.345-
13 and this section.
    (b) Pressure test. Test pressure must be as follows:
    (1) Using the hydrostatic test method, the test pressure must be at 
least 40 psig or 1.5 times tank MAWP, whichever is greater.
    (2) Using the pneumatic test method, the test pressure must be 40 
psig or 1.5 times tank MAWP, whichever is greater, and the inspection 
pressure is tank MAWP.
[Amdt. 178-89, 54 FR 25030, June 12, 1989. Redesignated by Amdt. 178-
112, 61 FR 18934, Apr. 29, 1996]



Sec. 178.348  Specification DOT 412; cargo tank motor vehicle.



Sec. 178.348-1  General requirements.

    (a) Each specification DOT 412 cargo tank motor vehicle must conform 
to the general design and construction requirements in Sec. 178.345 in 
addition to the specific requirements of this section.
    (b) The MAWP of each cargo tank must be at least 5 psig.
    (c) The MAWP for each cargo tank designed to be loaded by vacuum 
must be at least 25 psig internal and 15 psig external.
    (d) Each cargo tank having a MAWP greater than 15 psig must be of 
circular cross-section.
    (e) Each cargo tank having a--
    (1) MAWP greater than 15 psig must be ``constructed and certified in 
conformance with the ASME Code''; or
    (2) MAWP of 15 psig or less must be ``constructed in accordance with 
the ASME Code,'' except as modified herein:
    (i) The recordkeeping requirements contained in the ASME Code, 
Section VIII, Division I, do not apply. Parts UG-90 thru 94 of Section 
VIII, Division I do not apply. Inspection and certification must be made 
by an inspector registered in accordance with subpart F of part 107.
    (ii) Loadings must be as prescribed in Sec. 178.348-3.
    (iii) The knuckle radius of flanged heads must be at least three 
times the material thickness, and in no case less than 0.5 inch. Stuffed 
(inserted) heads may be attached to the shell by a fillet weld. The 
knuckle radius and dish radius versus diameter limitations of UG-32 do 
not apply for cargo tank motor vehicles with a MAWP of 15 psig or less. 
Shell sections of cargo tanks designed with a non-circular cross section 
need not be given a preliminary curvature, as prescribed in UG-79(b).

[[Page 860]]

    (iv) Marking, certification, data reports, and nameplates must be as 
prescribed in Secs. 178.345-14, 178.348-14, 178.345-15, and 178.348-15.
    (v) Manhole closure assemblies must conform to Secs. 178.345-5 and 
178.348-5.
    (vi) Pressure relief devices must be as prescribed in Secs. 178.345-
10 and 178.348-10.
    (vii) The hydrostatic or pneumatic test must be as prescribed in 
Secs. 178.345-13 and 178.348-13.
    (viii) The following paragraphs in parts UG and UW of the ASME Code, 
Section VIII, Division I do not apply: UG-11, UG-12, UG-22(g), UG-32(e), 
UG-34, UG-35, UG-44, UG-76, UG-77, UG-80, UG-81, UG-96, UG-97, UW-
13(b)(2), UW-13.1(f), and the dimensional requirements found in Figure 
UW-13.1.
[Amdt. 178-89, 54 FR 25031, June 12, 1989, as amended at 55 FR 37065, 
Sept. 7, 1990; Amdt. 178-89, 56 FR 27877, June 17, 1991]



Sec. 178.348-2  Material and thickness of material.

    (a) The type and thickness of material for DOT 412 cargo tanks must 
conform to Sec. 178.345-2 of this part, but in no case may the thickness 
be less than that indicated in Tables I and II below.

[[Page 861]]



  Table I.--Minimum Thickness of Heads (or Bulkheads and Baffles When Used as Tank Reinforcement) Using Mild Steel (MS), High Strength Low Alloy Steel  
                        (HSLA), Austenitic Stainless Steel (SS) or Aluminum (AL)--Expressed in Decimals of an Inch After Forming                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
   Volume capacity (gallons per inch)               10 or less                     Over 10 to 14               Over 14 to 18            18 and over     
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
Lading density at 60  deg.F in pounds                                                                                                                   
 per gallon.............................  10 lbs                                                                                                        
                                             and                                                                                                        
                                            less    Over                                                                                                
                                                   10 to                                                                                                
                                                  13 lbs    Over                                                                                        
                                                           13 to                                                                                        
                                                          16 lbs    Over                                                                                
                                                                  16 lbs  10 lbs                                                                        
                                                                             and                                                                        
                                                                            less    Over                                                                
                                                                                   10 to                                                                
                                                                                  13 lbs    Over                                                        
                                                                                           13 to                                                        
                                                                                          16 lbs    Over                                                
                                                                                                  16 lbs  10 lbs                                        
                                                                                                             and                                        
                                                                                                            less    Over                                
                                                                                                                   10 to                                
                                                                                                                  13 lbs    Over                        
                                                                                                                           13 to                        
                                                                                                                          16 lbs  10 lbs                
                                                                                                                                     and                
                                                                                                                                    less    Over        
                                                                                                                                           10 to        
                                                                                                                                          13 lbs    Over
                                                                                                                                                   13 to
                                                                                                                                                  16 lbs
Thickness (inch), steel.................    .100    .129    .157    .187    .129    .157    .187    .250    .157    .250    .250    .157    .250    .312
Thickness (inch), aluminum..............    .144    .187    .227    .270    .187    .227    .270    .360    .227    .360    .360    .227    .360    .450
--------------------------------------------------------------------------------------------------------------------------------------------------------


 Table II.--Minimum Thickness of Shell Using Mild Steel (MS), High Strength Low Alloy Steel (HSLA) or Austenitic Stainless Steel (SS) or Aluminum (AL)--
                                                     Expressed in Decimals of an Inch After Forming                                                     
--------------------------------------------------------------------------------------------------------------------------------------------------------
   Volume capacity in gallons per inch              10 or less                     Over 10 to 14               Over 14 to 18            18 and over     
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
Lading density at 60  deg.F in pounds                                                                                                                   
 per gallon.............................  10 lbs                                                                                                        
                                             and                                                                                                        
                                            less    Over                                                                                                
                                                   10 to                                                                                                
                                                  13 lbs    Over                                                                                        
                                                           13 to                                                                                        
                                                          16 lbs    Over                                                                                
                                                                  16 lbs  10 lbs                                                                        
                                                                             and                                                                        
                                                                            less    Over                                                                
                                                                                   10 to                                                                
                                                                                  13 lbs    Over                                                        
                                                                                           13 to                                                        
                                                                                          16 lbs    Over                                                
                                                                                                  16 lbs  10 lbs                                        
                                                                                                             and                                        
                                                                                                            less    Over                                
                                                                                                                   10 to                                
                                                                                                                  13 lbs    Over                        
                                                                                                                           13 to                        
                                                                                                                          16 lbs  10 lbs                
                                                                                                                                     and                
                                                                                                                                    less    Over        
                                                                                                                                           10 to        
                                                                                                                                          13 lbs    Over
                                                                                                                                                   13 to
                                                                                                                                                  16 lbs
Thickness (steel):                                                                                                                                      
    Distances between heads (and                                                                                                                        
     bulkheads baffles and ring                                                                                                                         
     stiffeners when used as tank                                                                                                                       
     reinforcement):                                                                                                                                    
        36 in. or less..................    .100    .129    .157    .187    .100    .129    .157    .187    .100    .129    .157    .129    .157    .187
        Over 36 in. to 54 inches........    .100    .129    .157    .187    .100    .129    .157    .187    .129    .157    .187    .157    .250    .250
        Over 54 in. to 60 inches........    .100    .129    .157    .187    .129    .157    .187    .250    .157    .250    .250    .187    .250    .312
Thickness (aluminum):                                                                                                                                   
    Distances between heads (and                                                                                                                        
     bulkheads baffles and ring                                                                                                                         
     stiffeners when used as tank                                                                                                                       
     reinforcement):                                                                                                                                    
        36 in. or less..................    .144    .187    .227    .270    .144    .187    .227    .270    .144    .187    .227    .187    .227    .270
        Over 36 in. to 54 inches........    .144    .187    .227    .270    .144    .187    .227    .270    .187    .227    .270    .157    .360    .360
        Over 54 in. to 60 inches........    .144    .187    .227    .270    .187    .227    .270    .360    .227    .360    .360    .270    .360    .450

[[Page 862]]

                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (b) [Reserved]
[Amdt. 178-89, 54 FR 25031, June 12, 1989; 54 FR 28750, July 7, 1989, as 
amended at 55 FR 37065, Sept. 7, 1990]



Sec. 178.348-3  Pumps, piping, hoses and connections.

    Each pump and all piping, hoses and connections on each cargo tank 
motor vehicle must conform to Sec. 178.345-9, except that the use of 
nonmetallic pipes, valves, or connections are authorized on DOT 412 
cargo tanks.
[Amdt. 178-89, 55 FR 37065, Sept. 7, 1990. Redesignated by Amdt. 178-
112, 61 FR 18934, Apr. 29, 1996]



Sec. 178.348-4  Pressure relief.

    (a) Each cargo tank must be equipped with a pressure and vacuum 
relief system in accordance with Sec. 178.345-10 and this section.
    (b) Type and construction. Vacuum relief devices are not required 
for cargo tanks designed to be loaded by vacuum or built to withstand 
full vacuum.
    (c) Pressure settings of relief valves. The setting of the pressure 
relief devices must be in accordance with Sec. 178.345-10(d), except as 
provided in paragraph (d)(3) of this section.
    (d) Venting capacities. (1) The vacuum relief system must limit the 
vacuum to less than 80 percent of the design vacuum capability of the 
cargo tank.
    (2) If pressure loading or unloading devices are provided, the 
pressure relief system must have adequate vapor and liquid capacity to 
limit tank pressure to the cargo tank test pressure at the maximum 
loading or unloading rate. The maximum loading and unloading rates must 
be included on the metal specification plate.
    (3) Cargo tanks used in dedicated service for materials classed as 
corrosive material, with no secondary hazard, may have a total venting 
capacity which is less than required by Sec. 178.345-10(e). The minimum 
total venting capacity for these cargo tanks must be determined in 
accordance with the formula contained in Sec. 178.270-11(d)(3). Use of 
the approximate values given for the formula in Sec. 178.270-11(d)(3) is 
acceptable.
[Amdt. 178-89, 54 FR 25032, June 12, 1989, as amended at 55 FR 37065, 
Sept. 7, 1990; Amdt. 178-104, 59 FR 49135, Sept. 26, 1994. Redesignated 
by Amdt. 178-112, 61 FR 18934, Apr. 29, 1996]



Sec. 178.348-5  Pressure and leakage test.

    (a) Each cargo tank must be tested in accordance with Sec. 178.345-
13 and this section.
    (b) Pressure test. Test pressure must be as follows:
    (1) Using the hydrostatic test method, the test pressure must be at 
least 1.5 times MAWP.
    (2) Using the pneumatic test method, the test pressure must be at 
least 1.5 times tank MAWP, and the inspection pressure is tank MAWP.
[Amdt. 178-89, 54 FR 25032, June 12, 1989. Redesignated by Amdt. 178-
112, 61 FR 18934, Apr. 29, 1996]



   Subpart K--Specifications for Packagings for Class 7 (Radioactive) 
                                Materials



Sec. 178.350  Specification 7A; general packaging, Type A.

    (a) Each packaging must meet all applicable requirements of subpart 
B of Part 173 of this subchapter and be designed and constructed so that 
it meets the requirements of Secs. 173.403, 173.410, 173.412, 173.415 
and 173.465 of this subchapter for Type A packaging.
    (b) Each Specification 7A packaging must be marked on the outside 
``USA DOT 7A Type A'' and ``Radioactive Material.''
[Amdt. 178-109, 60 FR 50336, Sept. 28, 1995; 60 FR 54409, Oct. 23, 1995]



Sec. 178.352  Specification 6L; metal packaging.



Sec. 178.352-1  General requirements.

    Each packaging must meet the applicable requirements of Sec. 173.24 
of this subchapter.
[Amdt. 178-35, 39 FR 45246. Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]

[[Page 863]]



Sec. 178.352-2  Rated capacity.

    (a) Rated capacity as marked (see Sec. 178.352-6). Not less than 55 
gallons nor more than 110 gallons for the outer steel drum. Not more 
than 17.74 liters for the inner vessel.
    (b) The authorized maximum gross weight of the package is 160 
kilograms (350 pounds) for sizes not over 210L (55 gallons) or 220 
kilograms (480 pounds) for sizes over 210L (55 gallons) but not over 
420L (110 gallons).
[Amdt. 178-1, 33 FR 14934, Oct. 4, 1968, as amended by Amdt. 178-35, 39 
FR 45246, Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 
21, 1990, and amended by Amdt. 178-99, 58 FR 51534, Oct. 1, 1993]



Sec. 178.352-3  General construction requirements.

    (a) The outer shell must be of straight sided steel, with welded 
body seams and at least 18-gauge body and bottom head sheets, and 14-
gauge removable head sheets (unless there are one or more corrugations 
in the cover near the periphery, in which case 16-gauge is authorized). 
The shell may be either a single sheet of steel or may be fabricated by 
welding together two appropriate lengths of 210L (55-gallon) drums, such 
as a DOT Specification 6J or 17H, with rolled or swedged in hoops as 
prescribed for either of those specifications. The head must be convex 
(crowned), not extending beyond the level of the chime, with a minimum 
convexity of 1 centimeter (\3/8\-inch). The inside diameter of the shell 
must be at least 57 centimeters (22.5 inches).
    (b) Inner containment vessel must conform to specification 2R 
(except that cast iron is not authorized), with a maximum usable inside 
dimension of 13.3 centimeters (5.25 inches) maximum height of 127 
centimeters (50 inches) (with caps in place) and minimum wall thickness 
of 6 millimeters (0.25 inch).
    (c) Inner containment vessel must be fixed within the outer shell by 
one of the following types of centering devices:
    (1) At least 8 steel rod spacers, of at least 6 millimeters (0.25-
inch) diameter (for packages of 210 liters (55-gallon) capacity) or 1 
centimeter of (0.375-inch) diameter (for packages with greater than 210 
liters (55-gallon) capacity) cold rolled steel, welded to the vessel at 
each end by minimum 5 centimeter (2-inch) continuous weld. Each rod must 
be welded to the vessel at radial positions not exceeding 45 degrees as 
not to interfere with closure of the inner vessel. Each spacer rod must 
extend at least 5.6 centimeters (2.25 inches) beyond the inner vessel at 
each end, then radially to the wall of the outer drum (to provide a 
springlike snug fit) and along the entire length of the wall of the 
outer drum. For a packaging of more than 210 liters (55-gallon) 
capacity, each spacer rod must be braced by welding a 6 millimeter 
(0.25-inch) by 5 centimeter (2-inch) steel plate to the spacer rod and 
the pipe with a continuous weld at each joint, the joints being located 
approximately half way along the length of the drum. For containers 
manufactured prior to March 31, 1975, this requirement is effective 
December 31, 1975.
    (2) At least three steel ``spiders,'' not more than 24 inches apart, 
with each spider having at least four legs. Each leg must be constructed 
of materials having dimensions not less than those listed in this 
paragraph, welded by continuous weld at each joint to inner and outer 
steel bands of at least \1/4\-inch by 1-inch steel. The inner steel band 
must be welded to the inner vessel by at least six 2-inch welds on both 
edges of the band. The outer steel band must be welded to the outer drum 
by at least six 2-inch welds on both edges of the top outer band, such 
that the inner vessel is at least 2\1/4\ inches from the top and bottom 
of the drum. Authorized construction materials are:
    (i) 2.5 centimeters (1 inch) by 2.5 centimeters (1 inch) by 6 
millimeters (\1/4\-inch) steel angle iron.
    (ii) 3 centimeters (1\1/4\ inches) by 3 centimeters (1\1/4\ inches) 
by 5 millimeters (\3/16\-inch) steel angle iron.
    (iii) 2.5 centimeters (1 inch) schedule 40 steel pipe.
    (iv) 1\1/2\-inch diameter solid steel rods, with only two such 
spiders required instead of three.
    (3) There must not be less than 2 spacer mechanisms for a packaging 
of 210 liters (55-gallon) capacity nor less than 3 spacer mechanisms for 
a packaging greater than 210 liters (55-gallon) capacity. Each spacer 
mechanism must consist of not less than 6 steel angles,

[[Page 864]]

pipe, or rod radial supports of at least 2.7 square centimeters (0.42 
square inch) cross-section. Each radial support must be welded at one 
end to the containment vessel by a continuous weld or to an inner steel 
band of at least 6 millimeters (\1/4\-inch) by 2.5 centimeters (1 inch) 
by a continuous weld at radial positions not exceeding 60 degrees from 
the center of the package. The inner band, when used, must be welded to 
the inner containment vessel by at least 6 equally spaced 5 centimeter 
(2-inch) welds on each edge of the band. The opposite end of the radial 
support must be welded by a continuous weld to an outer steel band of at 
least 6 millimeters (\1/4\-inch) by 2.5 centimeters (1 inch). The outer 
steel band must be welded to the outer shell by at least 6 equally 
spaced welds on each edge of the top band, such that the inner vessel is 
fixed at least 5.7 centimeters (2.25 inches) from the top and bottom of 
the drum. The spacer mechanism must be welded as specified near each end 
of the containment vessel so as not to interfere with the vessel 
closure. For a packaging greater than 210L (55-gallon) capacity, the 
additional spacer mechanism must be located at approximately midpoint 
along the length of the inner vessel.
    (d) The void between the inner containment vessel and the outer 
shell must be completely filled with bagged or tamped vermiculite 
(expanded mica), with a density of at least 0.072 g/cc (4.5 pounds per 
cubic foot). Loose, untamped vermiculite is not authorized.
[Amdt. 178-1, 33 FR 14934, Oct. 4, 1968, as amended by Amdt. 178-35, 39 
FR 45246, Dec. 31, 1974; 40 FR 2435, Jan. 13, 1975; 40 FR 44327, Sept. 
26, 1975. Redesignated by Amdt. 178-97,55 FR 52716, Dec. 21, 1990]



Sec. 178.352-4  Welding.

    Welding must be of material having a melting point in excess of 
800 deg. C (1475 deg. F) (except that for packages constructed prior to 
March 31, 1975, this temperature may be 540 deg. C (1000 deg. F)), with 
a joint efficiency of at least 0.85. This requirement applies to welding 
used in adding spacer rods to comply with Sec. 178.103(3)(c)(1).
[Amdt. 178-35, 39 FR 45246, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.352-5  Closure.

    (a) The outer drum closure must be at least a 12-gauge bolted ring 
with drop forged lugs, one of which is threaded, and having at least a 
1.6 centimeter (\5/8\-inch) diameter steel bolt and a lock nut, or 
equivalent device.
    (b) The closure device must have a means for the attachment of a 
tamper-proof lock wire and seal, or equivalent.
[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968, as amended by Amdt. 178-35, 39 
FR 45246, Dec. 31, 1974. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 
21, 1990]



Sec. 178.352-6  Markings.

    (a) Markings on each container, by die stamping on a metal plate 
attached to the outside of the outer container by spot welding, or other 
equally efficient method, in letters and figures of at least one-fourth 
inch in height, as follows:
    (1) ``DOT-6L''.
    (2) ``FISSILE RADIOACTIVE MATERIAL.''
    (3) Name or symbol of person making the marks specified in paragraph 
(a) (1) of this section. Symbol, if used, must be registered with the 
Associate Administrator for Hazardous Materials Safety.
    (4) Gauge of metal of the outer steel drum in the thinnest part, 
rated capacity of the outer steel drum in gallons, and the year of 
manufacture of the assembled package (e.g., 18-110-68). When the gauge 
of the metal in the drum wall differs from that in the head, both must 
be indicated with a slanting line between, and with the gauge of the 
body indicated first (e.g., 18/16-110-68 for 18-gauge body and 16-gauge 
head).
    (b) [Reserved]
[Order 70, 31 FR 6496, Apr. 29, 1966. Redesignated at 32 FR 5606, Apr. 
5, 1967. Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990]

    Editorial Note: For Federal Register citations affecting 
Sec. 178.352-6, see the List of

[[Page 865]]

CFR Sections Affected in the Finding Aids section of this volume.



Sec. 178.354  Specification 6M; metal packaging.



Sec. 178.354-1  General requirements.

    (a) Each package must meet the applicable requirements of 
Sec. 173.24 of this chapter.
    (b) [Reserved]
[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.354-2  Rated capacity.

    (a) Rated capacity as marked (see Sec. 178.104-5). Not less than 10 
gallons nor more than 110 gallons for the outer steel drum. Not less 
than 1.24 liters for the inner containment vessel.
    (b) [Reserved]
[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.354-3  General construction requirements.

    (a) The outer shell must be of straight-sided steel, with welded 
body seams, and may be either a single sheet of steel, or may be 
fabricated by welding together two appropriate lengths of drums, such as 
a DOT Specification 6C or 17C, with each length to contain 3 swedged or 
rolled rolling hoops as prescribed for either of these specifications. A 
removable head for a packaging of 210 liters (55 gallons) or larger 
volume must have one or more corrugations in the cover near the 
periphery. For a packaging exceeding 57 liters (15 gallons) volume, the 
head must be crowned (convexed), not extending beyond the level of the 
chime, with a minimum convexity of 1 centimeter (\3/8\-inch).
    (1) The maximum authorized gross weight, metal thickness, and 
minimum end insulation thickness for the marked volume is as follows:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                Marked capacity                  Maximum authorized gross    Minimum      Minimum               
------------------------------------------------          weight            thickness    thickness              
                                                -------------------------- of uncoated     of end               
                                                                            sheets and   insulation  Centimeters
         Gallons not over              Liters       Pounds     Kilograms      heads    -------------            
                                                                             (gauge)       Inches               
----------------------------------------------------------------------------------------------------------------
15................................           57          160           73           20         1.88          4.7
30................................          114          480          219           18         3.75          9.5
55................................          210          640          292           16         3.75          9.5
110...............................          420          640          292           16         3.75          9.5
----------------------------------------------------------------------------------------------------------------

    (2) Each drum must have at least four 1.2 centimeter (0.5-inch) 
diameter vents near the top, each covered with a weatherproof tape or 
fusible plug; or equivalent device. A layer of porous refractory fiber 
may be placed behind the pressure-relief vent holes.
    (b) Inner containment vessel must conform to specification 2R or 
equivalent (cast iron or brass are prohibited), with maximum usable 
inside diameter of 13.3 centimeters (5.25 inches), minimum usable inside 
diameter of 10 centimeters (4 inches), and minimum height of 15 
centimeters (6 inches).
    (c) Inner containment vessel must be fixed within the outer shell by 
one of the following types of solid centering media, with the sides of 
the inner vessel protected by at least 9.5 centimeters (3.75 inches) of 
insulation media, and the ends with at least the thickness as prescribed 
in Sec. 178.104-3(a)(1).
    (1) Machined discs and rings made of solid industrial cane 
fiberboard having a density of at least 0.24 g/cc (15 pounds per cubic 
foot) fitted such that the radial clearances between the fiberboard, 
inner vessel, and shell do not exceed 6 millimeters (\1/4\-inch); or
    (2) Hardwood or plywood at least 1.2 centimeter (\1/2\-inch) thick, 
having a density of at least 0.45 g/cc (28 pounds per cubic foot). There 
must be no gap or direct heat path from the shell to the inner vessel.
    (d) Any radiation shielding material used must be placed within the 
inner containment vessel or must be protected in all directions by at 
least the thickness of the thermal insulating material prescribed in 
paragraph (a) of this section.

[[Page 866]]

    (e) For a packaging having an authorized gross weight in excess of 
219 kg (480 pounds), a steel bearing plate, at least 6 millimeters 
(0.25-inch) thick or a plywood disc, at least 2.5 centimeters (1-inch) 
thick, and at least 25 centimeters (10 inches) in diameter must be 
provided at both ends and adjacent to the specification 2R inner 
containment vessel, to provide additional load-bearing surface against 
the insulation-centering medium.
[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968, as amended by Amdt. 178-35, 39 
FR 45246, Dec. 31, 1974; 40 FR 44327, Sept. 26, 1975. Redesignated by 
Amdt. 178-97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.354-4  Closure.

    (a) The outer drum closure must be at least 16-gauge bolt-type 
locking ring having at least a \5/16\-inch steel bolt for drum sizes not 
over 15 gallons, or a 12-gauge bolted ring with drop-forged lugs, one of 
which is threaded, and a \5/8\-inch steel bolt for drum sizes over 15 
gallons. Each bolt must be provided with a lock nut or equivalent 
device.
    (b) The closure device must have means for the attachment of a 
temperproof lock wire and seal, or equivalent.
[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.354-5  Markings.

    (a) Marking must be as prescribed in Sec. 173.24 of this chapter.
    (b) Marking on the outside of each package must be as follows: 
``DOT-6M Type B,'' ``Radioactive Materials,'' or ``Fissile Radioactive 
Materials,'' as appropriate; and the gauge of metal of the outer drum in 
the thinnest part, rated capacity of the outer drum in gallons, and year 
of manufacture (for example, 18-30-69). When the gauge of the metal in 
the drum wall differs from that in the head, both must be indicated with 
a slanting line between, and with the gauge of the body indicated first 
(e.g., 18/16-55-69 for 18-gauge body and 16-gauge head).
[Amdt. 178-1, 33 FR 14935, Oct. 4, 1968. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.356  Specification 20PF phenolic-foam insulated, metal overpack.



Sec. 178.356-1  General requirements.

    (a) Each overpack must meet all of the applicable requirements of 
Sec. 173.24 of this subchapter.
    (b) The maximum gross weight of the package, including the inner 
cylinder and its contents, must not exceed the following:
    (1) Specification 20PF-1--138 kilograms (300 pounds).
    (2) Specification 20PF-2--320 kilograms (700 pounds).
    (3) Specification 20PF-3--455 kilograms (1000 pounds).
    (c) The general configuration of the overpack must be a right 
cylinder, consisting of an insulated base section, a steel liner lid, 
and an insulated top section. The inner liner and outer shell must be at 
least 16-gauge and 18-gauge steel, respectively, with the intervening 
cavity filled with a molded-in-place, fire-resistant, phenolic-foam 
insulation interspersed with wooden members for bracing and support Wood 
pieces must be securely attached to both the liner and shell. No hole is 
permitted in the liner. Each joint between sections must be stepped a 
minimum of 5 centimeters (2 inches) and gaps between mating surfaces 
must not exceed 5 millimeters (0.2-inch). Gaps between foam surface of 
top section and liner lid must not exceed 1 centimeter (0.4-inch) or 5-
centimeters (2 inches) where taper is required for mold stripping. For 
the specification 20PF-1, the top section may consist of a plug of foam 
insulation and a steel cover. The liner and shell closures must each be 
gasketed against moisture penetration. The liner must have a bolted 
flange closure. Shell closure must conform to Sec. 178.118-8(b).

[[Page 867]]

    (d) Drawings in CAPE-1662, which include bills of material are a 
part of this specification.
[Amdt. 178-35, 39 FR 45247, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.356-2  Materials of construction and other requirements.

    (a) Phenolic foam insulation must be fire-resistant and fabricated 
in accordance with USDOE Material and Equipment Specification SP-9, Rev. 
1 and Supplement, which is a part of this specification. (Note: 
Packagings manufactured under USAEC Specification SP-9 and Rev. 1 
thereto are authorized for continued manufacture and use.) A 5.4-inch 
(13.7 centimeter) minimum thickness of foam must be provided over the 
entire liner except:
    (1) Where wood spacers replace the foam; or
    (2) At protrusions of liner or shell, such as flanges, baffles, 
etc., where minimum insulation thickness is 9 centimeters (3.5 inches); 
or
    (3) Where alternate top section (specification 20PF-1) is used. Foam 
must not interfere with proper seating of screws in inner liner flange 
assembly. Average density of insulation must be 0.13 g/cc (8 pounds per 
cubic foot (pcf)) minimum for bottom section and 0.16 g/cc (10 pcf) 
minimum for top section, except 0.1 g/cc (6.5 pcf) for the specification 
20PF-1 top section.
    (b) Gaskets must be as follows:
    (1) Inner liner flange--Neoprene rubber of 30 to 60 type A durometer 
hardness or other equivalent gasket material which is compatible with 
the specific contents.
    (2) Outer shell--Synthetic rubber conforming to MIL-R-6855 
(available from the Naval Publications Forms Center, 5801 Tabor Avenue, 
Philadelphia, Pennsylvania 19120) class 2, grade 60.
    (3) Support and pressure pads for inner liner top and bottom must be 
sponge rubber or equivalent.
    (c) Alternate top section (specification 20PF-1 only). Average 
insulation density must be 0.16 g/cc (10 pcf minimum). Thickness of plug 
must be 11 centimeters (4.3 inches) minimum, except thickness may be 
reduced to 10 centimeters (4 inches) to clear bolt heads. A flush 
mounted top lifting device must be securely fastened to a wood block 
encapsulated by the foam.
    (d) Vent holes 5 millimeters (0.2-inch) diameter must be drilled in 
the outer shell to provide pressure relief during the insulation foaming 
and in the event of a fire. These holes, which must be drilled in all 
areas of the shell which mate with the foam insulation, must be spaced 
in accordance with CAPE-1662.
    (e) Welding must be by a fusion welding process in accordance with 
American Welding Society Codes B-3.0 and D-1.0. Body seams and joints 
for the liner or shell must be continuous welds.
    (f) Waterproofing. Each screw hole in the outer shell must be sealed 
with appropriate resin-type sealing material, or equivalent, during 
installation of the screw. All exposed foam surfaces, including any vent 
hole, must be sealed with waterproofing material as prescribed in USDOE 
Material and Equipment Specification SP-9, Rev. 1 and Supplement, or 
equivalent.
[Amdt. 178-35, 39 FR 45247, Dec. 31, 1974, as amended by Amdt. 178-56, 
44 FR 49458, Aug. 23, 1979. Redesignated by Amdt. 178-97, 55 FR 52716, 
Dec. 21, 1990]



Sec. 178.356-3  Tests.

    (a) Leakage test--Each inner liner assembly must be tested for 
leakage prior to installation. Seam welds of the liner must be covered 
for a distance of at least 15 centimeters (6 inches) on either side of 
the seam with soapsuds, heavy oil, or equivalent material, and interior 
air pressure applied to at least 776mm Hg (15 p.s.i.g.) above 
atmospheric pressure must be held for at least 30 seconds. Liners 
failing to pass this test may not be used until repairs are made, and 
retests successfully passed.
    (b) [Reserved]
[Amdt. 178-35, 39 FR 45247, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.356-4  Required markings.

    (a) Marking must be as prescribed in Sec. 173.24 of this subchapter.
    (b) Marking on the outside of each overpack must be as follows:

[[Page 868]]

    (1) ``USA-DOT-20PF-1'' or ``-2,'' as appropriate, and if the entire 
liner is made of stainless steel, additional marking such as ``3041-SS'' 
to indicate the type of stainless steel used.
    (2) ``TARE WT: xxx lbs.'' where xxx is the tare weight of the 
assembled overpack without the inner container.
    (3) Year of manufacture.
[Amdt. 178-35, 39 FR 45247, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.356-5  Typical assembly detail.

    (a) Specifications 20PF-1.
    [GRAPHIC] [TIFF OMITTED] TC02MR91.077
    

[[Page 869]]


[GRAPHIC] [TIFF OMITTED] TC02MR91.078


[[Page 870]]


[GRAPHIC] [TIFF OMITTED] TC02MR91.079


[[Page 871]]





Sec. 178.358  Specification 21PF fire and shock resistant, phenolic-foam insulated, metal overpack.



Sec. 178.358-1  General requirements.

    (a) Each overpack must meet all of the applicable requirements of 
Secs. 173.24, 173.411, and 173.412 of this subchapter.
    (1) Specification 21PF-1 overpacks includes the series of 21PF-1, 
21PF-1A, and 21PF-1B models. Details of the three models are included in 
CAPE-1662, Revision 1 and Supplement 1.
    (2) Drawings in CAPE-1662, Revision 1 and Supplement 1, which 
include bills of materials, and K/SS-471, are a part of this 
specification.
    (b) Each overpack is authorized for use in applications where the 
maximum gross weight of the package, including the inner container and 
contents does not exceed 3725 kilograms (8200 pounds), (horizontally-
loaded specification 21 PF-1 unit), or 3900 kilograms (8600 pounds), 
(end-loaded specification 21 PF-2 unit).
    (c) The general configuration of the overpack must be a right 
cylinder, consisting of a steel inner liner (at least 16-gauge) and 
steel outer shell (at least 14-gauge) with the intervening cavity filled 
with a molded-in-place, fire-resistant, phenolic foam insulation and 
interspersed wooden members for bracing and support. Two specific 
configurations are authorized; a horizontal loading unit (specification 
21PF-1) consisting of insulated base and top sections jointed in a 
longitudinal peripheral closure joint; or an end-loading unit 
(specification 21PF-2), consisting of an insulated main section, a steel 
plate liner lid, and an insulated end cap. For either type each joint 
between sections must be stepped at least 1.8 centimeters (0.75-inch) 
and gaps between mating surfaces may not exceed 5 millimeters (0.2-
inch). Bolted closures, which must each be gasketed against moisture 
penetration, must be in accordance with CAPE-1662. Each bolt must be 
equipped with a locking device to prevent loosening from vibration. 
Outer steel bracing and support framework must be attached to the shell 
to facilitate normal handling.
    (d) Specification 21PF-1 overpacks in use or under construction 
before April 1, 1989, must be modified to Specification 21PF-1A before 
April 1, 1991. All new construction to Specification 21PF-1 beginning 
after March 31, 1989, must meet Specification 21PF-1B. Use of unmodified 
21PF-1 overpacks after March 31, 1991, is prohibited.
[Amdt. 178-35, 39 FR 45250, Dec. 31, 1974; 40 FR 2435, Jan. 13, 1975, as 
amended by Amdt. 178-90, 53 FR 36551, Sept. 20, 1988. Redesigntated by 
Amdt. 178-97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.358-2  Materials of construction and other requirements.

    (a) Phenolic foam insulation must be fire resistant and fabricated 
in accordance with USDOE Material and Equipment Specification SP-9, Rev. 
1 and Supplement, which is a part of this specification. (Note: 
Packagings manufactured under USAEC Specification SP-9, and Rev. 1 
thereto are authorized for continued manufacture and use.) A 5.5-inch 
(14 centimeter) minimum thickness of foam must be provided over the 
entire liner except where:
    (1) Wood spacers replace the foam material; or
    (2) At protrusions of liner or shell, such as flanges, baffles, 
etc., where the minimum thickness of foam, wood, or a combination of 
these is 10 centimeters (4 inches).
    (3) Solid wood or laminated wood solidly glued may be used to 
replace the foam between liner and shell (i.e., in ends of overpack). In 
this case, minimum wood thickness is 10 centimeters (4 inches). Average 
density of insulation must be 0.1g/cc (6.75 pounds per cubic foot (pcf)) 
minimum, except that 0.13 g/cc (8 pcf) is required in the removable end 
cap of the specification 21PF-2, which must have a minimum foam 
thickness of 12.7 centimeters (5 inches).
    (b) Gaskets for inner liner, outer shell, or where otherwise 
specified in CAPE-1662, Revision 1, must be as specified in CAPE-1662, 
Revision 1.
    (c) Support and pressure pads for the inner liner must be of 
neoprene, sponge rubber, or equivalent.
    (d) Fire-retardant (intumescent) paint must be applied to any wood 
blocking which is located at any joint in the shell.
    (e) Vent holes 5 millimeters (0.2-inch) diameter must be drilled in 
the outer shell to provide pressure relief during

[[Page 872]]

the insulation foaming and in the event of a fire. These holes, which 
must be drilled in all areas of the shell which made with the foam 
insulation, must be spaced in accordance with CAPE-1662.
    (f) Welding must be by a fusion process in accordance with the 
American Welding Society Code. Body seams and joints for the liner and 
shell must be continuous welds.
    (g) Waterproofing. Each screw hole in the outer shell must be sealed 
with appropriate resin-type sealing material, or equivalent, during 
installation of the screw. All exposed foam surfaces, including any vent 
hole, must be sealed with either:
    (1) Waterproofing material as prescribed in USDOE Material and 
Equipment Specification SP-9, Rev. 1 and Supplement, or
    (2) As specified in CAPE-1662, Revision 1.
[Amdt. 178-35, 39 FR 45250, Dec. 31, 1974, as amended by Amdt. 178-56, 
44 FR 49459, Aug. 23, 1979; Amdt. 178-90, 53 FR 36551, Sept. 20, 1988. 
Redesigntated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.358-3  Modification of Specification 21PF-1 overpacks.

    (a) Each Specification 21PF-1 overpack for which construction began 
or was completed before April 1, 1989, in conformance with drawing E-S-
31536-J, Revision 11, of CAPE-1662 must be modified in conformance with 
drawing S1E-31536-J1-D of CAPE-1662, Revision 1, Supplement 1, before 
April 1, 1991.
    (b) Each such existing Specification 21PF-1 overpack must be dried 
and weighed in accordance with the following procedures:
    (1) Drill out or otherwise clean the plug material from the vent 
holes originally provided for foam expansion. See drawing S1E-31536-J1-D 
of CAPE-1662, Revision 1, Supplement 1, for locations.
    (2) Weigh each packaging element (top and bottom halves) separately 
to an accuracy of +/-5 pounds (+/-2.3 kilograms) and record the weights. 
If this measured weight is greater than 25 pounds (11.3 Kg) more than 
the initially measured weight at the time of fabrication (indicating a 
significant retained water content), the packaging element must be 
dried.
    (3) Place overpack element in drying oven; maintain temperature 
between 190 deg. and 210 deg.F (87.8-98.9  deg.C) for a minimum of 72 
hours. The oven should have a provision for air exchange or other means 
of removing moisture driven from the foam structure.
    (4) Drying may be discontinued after 72 hours if the weight of the 
packaging element is not higher than 25 pounds (11.3 Kg) more than the 
initially measured tare weight of that element at the time of 
fabrication. If the weight of the packaging element is greater than 25 
pounds (11.3 Kg) more than the initial fabricated weight (indicating a 
significant remaining water content), drying must be continued until the 
weight differential is not higher than 25 pounds (11.3 Kg), or until the 
rate of weight loss is less than 2.5 pounds (1.1 Kg) per day.
    (5) As an alternate moisture measurement, a calibrated moisture 
meter reading for 20 percent maximum water content may be used to 
indicate an end point in the drying cycle (see details in report 
``Renovation of DOT Specification 21PF-1 Protective Shipping Packages,'' 
Report No. K-2057, Revision 1, November 21, 1986, available from the 
USDOE and part of USDOE Report No. K/SS-471).
    (6) Following drying, each overpack element (top and bottom halves) 
must be weighed and the weight in both pounds and kilograms must be 
engraved on the identification plate required by Sec. 178.121-5(c).
    (c) After modification as provided for herein, each Specification 
21PF-1 overpack must be marked ``USA-DOT-21PF-1A''. See the marking 
requirements of Sec. 178.121-5(b).
[Amdt. 178-90, 53 FR 36551, Sept. 20, 1988. Redesigntated by Amdt. 178-
97, 55 FR 52716, Dec. 21, 1990; Amdt. 178-110, 60 FR 49111, Sept. 21, 
1995]



Sec. 178.358-4  Construction of Specification 21PF-1B overpacks.

    (a) Each Specification 21PF-1 overpack for which construction began 
after March 31, 1989, must meet the requirements of Specification 21PF-
1B, in conformance with drawings E-S-

[[Page 873]]

31536-J-P, and S1E-31536-J2-B of CAPE-1662, Revision 1, Supplement 1.
    (b) With the exception of the closure nuts and bolts, all metal 
parts of the Specification 21PF-1B must be of stainless steel as shown 
on the drawings referred to in paragraph (a) of this section.
[Amdt. 178-90, 53 FR 36551, Sept. 20, 1988. Redesigntated by Amdt. 178-
97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.358-5  Required markings.

    (a) Markings must be as prescribed in Sec. 173.24 of this 
subchapter.
    (b) Specification marking on the outside of each overpack must be as 
follows: ``USA-DOT-21PF-1'', ``1A'', ``1B'', or ``2'', as appropriate.
    (1) For Specifications 21PF-1 and 21PF-2 only, if the inner shell is 
constructed of stainless steel, additional marking such as ``304L-SS'' 
are to be marked on the outside of the overpack to indicate the type of 
stainless steel used.
    (2) For Specification 21PF-1 and 21PF-2 only, ``TARE WT: * * * lbs. 
(* * *  kg)'' where * * * is the tare weight in pounds and kilograms, 
respectively, of the assembled overpack without the inner product 
container.
    (3) For Specification 21PF-1A and 21PF-1B only: ``TARE WT. of Cover: 
* * * lbs (* * * kg) TARE WT. of BOTTOM: * * * lbs (* * * kg)'' where * 
* * is the tare weight in pounds and kilograms, respectively, of the 
separate halves of the overpack without the inner product container. For 
Specification 21PF-1A overpacks, the previous tare weight must be 
changed to reflect the modified tare weight value or must be covered or 
removed.
    (4) Year of manufacture followed by the year of modification, if 
applicable.
    (5) The name or symbol of maker or party certifying compliance with 
specification requirements. A symbol, if used, must be registered with 
the Associate Administrator for Hazardous Materials Safety.
    (c) For Specification 21PF-1A and -1B only, the markings required by 
this section must be affixed to each overpack by inscription upon a 
metal identification plate 11 inches wide X 15 inches long (28 cm X 38 
cm), fabricated of 16 to 20 gauge stainless steel sheet, ASTM A-240, 
Type 304L.
[Amdt. 178-90, 53 FR 36552, Sept. 20, 1988. Redesigntated by Amdt. 178-
97, 55 FR 52716, Dec. 21, 1990, and amended at Amdt. 178-97, 56 FR 
66287, Dec. 20, 1991]


Sec. 178.358-6    Typical assembly detail.
[GRAPHIC] [TIFF OMITTED] TC02MR91.080


[[Page 874]]


        [GRAPHIC] [TIFF OMITTED] TC02MR91.081
        

[[Page 875]]


        [GRAPHIC] [TIFF OMITTED] TC02MR91.082
        

[[Page 876]]





Sec. 178.360  Specification 2R; inside containment vessel.



Sec. 178.360-1  General requirements.

    (a) Each vessel must be made of stainless steel, malleable iron, or 
brass, or other material having equivalent physical strength and fire 
resistance.
    (b) Each vessel must meet all of the applicable requirements of 
Sec. 173.24 (c) and (d) of this subchapter. Letters and numerals at 
least 6 millimeters (\1/4\-inch) in height are authorized for the 
marking of a vessel not exceeding 5 centimeters (2 inches) inside 
diameter.
[Amdt. 178-35, 39 FR 45245, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.360-2  Manufacture.

    The ends of the vessel must be fitted with screw-type closures or 
flanges (see Sec. 178.34-4), except that one or both ends of the vessel 
may be permanently closed by a welded or brazed plate. Welded or brazed 
side seams are authorized.
[Amdt. 178-35, 39 FR 45245, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.360-3  Dimensions.

    (a) The inside diameter of the vessel may not exceed 30 centimeters 
(12 inches) exclusive of flanges for handling or fastening devices and 
must have wall thickness and length in accordance with the following:


----------------------------------------------------------------------------------------------------------------
          Inside diameter maximum               Threaded closure        Wall thickness         Length maximum   
-------------------------------------------------------------------    minimum--Flanged   ----------------------
            Inches              Centimeters   Inches   Millimeters         closure          Inches   Centimeters
----------------------------------------------------------------------------------------------------------------
2.............................           5     \3/32\         2.5   Not less than that           16          41 
                                                                     prescribed for                             
                                                                     schedule 40 pipe.                          
6.............................          15      \1/8\         3.2   .....................        72         183 
12............................          30      \1/4\         6.5   .....................        72         183 
----------------------------------------------------------------------------------------------------------------

    (b) [Reserved]
[Amdt. 178-35, 39 FR 45245, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.360-4  Closure devices.

    (a) Each closure device must be as follows:
    (1) Screw-type cap or plug; number of threads per inch must not be 
less than United States standard pipe threads and must have sufficient 
length of thread to engage at least 5 threads when securely tightened. 
Pipe threads must be luted with an appropriate non-hardening compound 
which must be capable of withstanding up to 149 deg. C (300 deg. F) 
without loss of efficiency. Tightening torque must be adequate to 
maintain leak tightness with the specific luting compound.
    (2) An opening may be closed by a securely bolted flange and leak-
tight gasket. Each flange must be welded or brazed to the body of the 2R 
vessel per (ANSI) Standard B16.5 or (AWWA) Standard C207-55, section 10. 
A torque wrench must be used in securing the flange with a corresponding 
torque of no more than twice the force necessary to seal the selected 
gasket. Gasket material must be capable of withstanding up to 149 deg. C 
(300 deg. F) without loss of efficiency. The flange, whether of ferrous 
or nonferrous metal, must be constructed from the same metal as the 
vessel and must meet the dimensional and fabrication specifications for 
welded construction as follows:
    (i) Pipe flanges described in Tables 13, 14, 16, 17, 19, 20, 22, 23, 
25 and 26 of ANSI B16.5.
    (ii) For nominal pipe sizes, 6, 8, 10, and 12 inches, AWWA Standard 
C207-55, Table 1, class B, may be used in place of the tables prescribed 
by paragraph (a)(2)(i) of this section.
    (iii) Sizes under 6 inches, nominal pipe size, the following table 
with the same configuration as illustrated in AWWA C207-55, Table 1, 
class B, may be used in place of paragraph (a)(2)(i) of this section.

[[Page 877]]



                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
      Nominal pipe size               Flange O.D.                        Bolt circle diameter          Diameter of bolts           Flange thickness     
---------------------------------------------------------  Number of -----------------------------------------------------------------------------------
   Inches      Centimeters      Inches      Centimeters      bolts      Inches      Centimeters     Inches      Centimeters     Inches      Centimeters 
--------------------------------------------------------------------------------------------------------------------------------------------------------
2..........            5              6            15             4      4\3/4\          11.8         \1/2\           1.2         \5/8\           1.6   
2\1/2\.....          6.2              7          17.5             4      5\1/2\          13.8         \1/2\   ..............      \5/8\   ..............
3..........          7.5         7\1/2\          18.8             4           6            15         \1/2\   ..............      \5/8\   ..............
3\1/2\.....          8.8         8\1/2\          21.3             8           7          17.5         \1/2\   ..............      \5/8\   ..............
4..........           10              9          22.5             8      7\1/2\          18.8         \1/2\   ..............      \5/8\   ..............
5..........         12.6             10          25.4             8      8\1/2\          21.3         \1/2\   ..............      \5/8\   ..............
--------------------------------------------------------------------------------------------------------------------------------------------------------

    (iv) Cast iron flanges prohibited.
    (b) [Reserved]
[Amdt. 178-35, 39 FR 45245, Dec. 31, 1974; 40 FR 2435, Jan. 13, 1975, as 
amended at 40 FR 44327, Sept. 26, 1975. Redesignated by Amdt. 178-97, 56 
FR 66284, Dec. 20, 1991]



Sec. 178.362  Specification 20WC wooden protective jacket.



Sec. 178.362-1  General requirements.

    (a) Each jacket must meet the applicable requirements of Sec. 173.24 
of this subchapter.
    (b) Maximum gross weight of the jacket plus the contents may not 
exceed the following:
    (1) Specification 20WC-1: 225 kilograms (500 pounds).
    (2) Specification 20WC-2: 225 kilograms (500 pounds).
    (3) Specification 20WC-3: 455 kilograms (1000 pounds).
    (4) Specification 20WC-4: 910 kilograms (2000 pounds).
    (5) Specification 20WC-5: 1820 kilograms (4000 pounds).
    (6) Specification 20WC-6: 2230 kilograms (6000 pounds).
[Amdt. 178-35, 39 FR 45252, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.362-2  Materials of construction.

    (a) The general configuration of the wooden protective jacket must 
be a hollow cylindrical shell constructed of one-piece discs and rings 
of plywood or solid hardwood reinforced with steel rods.
    (1) The specification 20WC-2 must be additionally completely 
encased, snugly fit, within an 18-gauge steel shell. The steel shell 
must be provided with at least four 6 millimeter (0.25-inch) diameter 
vent holes. Each hole must be covered with durable weatherproof tape, or 
equivalent device.
    (2) The specification 20WC-6 jacket must be additionally completely 
encased, snugly-fit, within a 12-gauge steel shell. The steel shell must 
be provided with at least twelve 1.2 centimeters (0.5-inch) diameter 
vent holes, located in 3 rows of 4 holes each, spaced at 90 degree 
intervals near the top, middle, and bottom of the drum. Each hole must 
be covered with durable weatherproof tape, or equivalent device.
    (b) Plywood must be exterior-grade, void-free, Douglas fir (or 
equivalent) not more than 2.5 centimeters (1 inch) thick. Solid hardwood 
is authorized for specification 20WC-2 only.
    (c) Discs and rings must be glued together with a strong, shock-
resistant adhesive, such as either of the following:
    (1) A resorcinol-formaldehyde adhesive, which has been bonded under 
both heat and pressure; or
    (2) A polyvinyl-acetate emulsion, which has been reinforced with 
cement-coated nails. The nails must be randomly spaced and must be at 
least 2.5 times as long as the minimum thickness of the plywood discs or 
rings.
    (d) Full-length steel rods are required for reinforcement and lid 
closure.
    (1) The minimum number of rods and the minimum rod diameter are as 
shown in the following table:

                                                                        
------------------------------------------------------------------------
                                       Minimum     Minimum rod diameter 
           Specification              number or ------------------------
                                        rods       Inches    Millimeters
------------------------------------------------------------------------
20WC-1.............................           6        0.25          6.0
20WC-2.............................           6         .25          6.0
20WC-3.............................          12        .375          9.5
20WC-4.............................          16        .375          9.5
20WC-5.............................          16         .50         12.0
20WC-6.............................          16         .50         12.0
------------------------------------------------------------------------

    (2) For specifications 20WC-1 and 20WC-2, steel rods must be equally 
spaced around the circumference to the rings and discs, midway between 
the

[[Page 878]]

O.D. and I.D. of the rings. For specifications 20WC-3 and 20WC-4, bolts 
may be staggered alternately in two rows, at plus-minus1.2 
centimeters (0.5-inch) from the line midway between the O.D. and I.D. of 
the rings. For specifications 20WC-5 and 20WC-6, bolts may be staggered 
alternately in two rows at plus-minus2.5 centimeters (1 inch) 
from the line midway between the O.D. and I.D. of the rings.
    (3) Rod ends must be threaded and secured with lock nuts and steel 
washers, or equivalent device, to provide at least a 2.5 centimeters (1 
inch) diameter bearing surface on each end. Ends of the rods must 
terminate 1.4 centimeters (0.75-inch) below the surface of the plywood 
for specifications 20WC-1 and 20WC-2. For specifications 20WC-3, 20WC-4, 
20WC-5 and 20WC-6, the ends of the rods must terminate 3.7 centimeters 
(1.5 inches) below the surface of the plywood, and that portion of each 
end disc which extends beyond the rod ends must be further held in place 
with lag screws at least 10 centimeters (4 inches) long.
    (e) Thickness of wooden shell:
    (1) Specification 20WC-1: At least 10 centimeters (4 inches) thick.
    (2) Specification 20WC-2: At least 7.5 centimeters (3 inches) thick.
    (3) Specification 20WC-3: At least 13 centimeters (5 inches) thick 
for the jacket wall, and at least 15 centimeters (6 inches) thick for 
the end discs. In addition, at least 3 plywood chines, 5 centimeters (2 
inches) wide and protruding 5 centimeters (2 inches) beyond the outer 
surfaces, must be located at each end and midway along the length of the 
jacket.
    (4) Specification 20WC-4: At least 15 centimeters (6 inches) thick 
for the jacket wall, and at least 15 centimeters (6 inches) thick for 
the end discs. In addition, at least 3 plywood chines, 5 centimeters (2 
inches) wide and protruding 5 centimeters (2 inches) beyond the outer 
surfaces, must be located at each end and midway along the length of the 
jacket.
    (5) Specifications 20WC-5 and 20WC-6: At least 15 centimeters (6 
inches) thick for the jacket wall, and at least 20 centimeters (8 
inches) thick for the end discs. In addition, at least 5 plywood chimes, 
5 centimeters (2 inches) wide and protruding 5 centimeters (2 inches) 
beyond the outer surfaces, must be located at each end and equally 
spaced along the length of the jacket.
[Amdt. 178-35, 39 FR 45252, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990, and amended by Amdt. 178-99, 58 FR 51534, 
Oct. 1, 1993]



Sec. 178.362-3  Closure.

    (a) Closure for the wooden protective jacket is provided by the 
steel reinforcing rods. The end cap (lid) must fit tightly to the body 
of the jacket to prevent a heat path to the inside of the jacket. The 
lid joint for specifications 20WC-3, 20WC-4, 20WC-5, and 20WC-6, may not 
be coplanar with the end of the inner containment vessel.
    (b) Specifications 20WC-2 and 20WC-6. Locking ring closure, if used, 
must conform to Sec. 178.104-4. Flanged closure, if used, must have at 
least 8 steel bolts (at least 6 millimeters (0.25-inch) diameter for 
20WC-2 or 1.2 centimeters (0.50-inch) diameter for 20WC-6) and lock nuts 
(or equivalent device), spaced not more than 13 centimeters (5 inches) 
between centers.
[Amdt. 178-35, 39 FR 45252, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.362-4  Tests.

    Prior to each use, each jacket must be visually inspected for 
defects such as improper bonding, cracking, corrosion of steel rods, and 
improperly fitting closure lid, or other manufacturing defects. 
Particular attention must be given to any separation of the plywood 
discs and rings which would provide a heat path to the inside of the 
jacket.
[Amdt. 178-35, 39 FR 45252, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.362-5  Painting.

    Each jacket (other than 20WC-2 and 20WC-6) must be completely 
painted with a high quality exterior weather resistant paint.
[Amdt. 178-35, 39 FR 45252, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]

[[Page 879]]



Sec. 178.362-6  Marking.

    (a) Each jacket must be marked on the external surface as follows: 
``USA-DOT 20WC-(  ) TYPE B.'' The appropriate numeral must be inserted 
in the marking to indicate the appropriate specification 20WC category: 
e.g., ``20WC-2.''
    (b) Each jacket must also be marked with the name or symbol of 
person making the marks specified in paragraph (a) of this section. 
Symbol, if used, must be registered with the Associate Administrator for 
Hazardous Materials Safety.
[Amdt. 178-35, 39 FR 45252, Dec. 31, 1974, as amended by Amdt. 178-40, 
41 FR 38182, Sept. 9, 1976. Redesignated by Amdt. 178-97, 55 FR 52716, 
Dec. 21, 1990, and amended at Amdt. 178-97, 56 FR 66287, Dec. 20, 1991]



Sec. 178.362-7  Typical assembly sketches.

    (a) Spec. 20WC-2.
    [GRAPHIC] [TIFF OMITTED] TC02MR91.083
    
    [GRAPHIC] [TIFF OMITTED] TC02MR91.084
    
[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974; 40 FR 2435, Jan. 13, 1975. 
Redesignated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.364  Specification 21WC wooden-steel protective overpack.



Sec. 178.364-1  General requirements.

    (a) Each jacket must meet all the applicable requirements of 
Sec. 173.24 of this subchapter.
    (b) The maximum authorized gross weight of the overpack, including 
its inner container and contents may not exceed 1360 kilograms (3000 
pounds).
[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesignated by Amdt. 178-97, 
55 FR 52716, Dec. 21, 1990]



Sec. 178.364-2  Materials of construction and other requirements.

    (a) The general configuration of the protective overpack must be a 
combination of two nested plywood boxes, each 2.5 centimeters (1 inch) 
thick, nested within a third wooden box of nominal 5 centimeters (2-
inch) thickness solid hardwood. The three nested boxes must be enclosed 
within a welded framework 10 cement-coated nails spaced on nominally 1 
centimeter (\3/8\-inch) thick by 8-10 centimeters (3-4 inches) wide. All 
outer surfaces of each box must be coated with intumescent paint.
    (b) Plywood must be exterior-grade, void-free, Douglas fir, or 
equivalent, at least 2.5 centimeters (1 inch) thick.

[[Page 880]]

Solid hardwood must be maple, or equivalent.
    (c) All box joints and interior surfaces must be glued with a 
strong, shock-resistant adhesive such as polyvinylacetate emulsion, or 
equivalent.
    (d) All hardwood joints must be mitered, or equivalent, reinforced 
with No. 10 cement-coated nails space on nominal 15 centimeters (6-inch) 
centers.
    (e) All plywood joints must be butt-type, or equivalent, reinforced 
with No. 10 cement-coated nails spaced on nominal 15 centimeters (6-
inch) centers.
    (f) The angles and strapping of the metal frame must be spaced such 
that separation distances do not exceed 15 centimeters (6 inches).
    (g) The lid must be of the same material as the box and fabricated 
in such a manner that closure forms a mitered joint with the hardwood 
box and 2 stepped-joints with the plywood boxes.
[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated by Amdt. 178-
97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.364-3  Closure.

    Closure for the protective overpack must be provided by at least 4 
mild steel hinges formed from minimum 2.5-centimeter (1-inch) x 5-
millimeter (\3/16\-inch) bar stock. Hinge pins must be minimum 6-
millimeter (\1/4\-inch) diameter by 13.3 centimeters (5\1/4\ inches) 
long mild steel rod drilled at both ends for cotter pins.
[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated by Amdt. 178-
97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.364-4  Tests.

    Prior to each use, each overpack must be visually inspected for 
defects such as wood checking or splintering weld cracking, corrosion of 
steel parts, improper joint bonding, or improperly fitting closure lid.
[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated by Amdt. 178-
97, 55 FR 52716, Dec. 21, 1990]



Sec. 178.364-5  Required marking.

    (a) Marking must be as prescribed in Sec. 173.24 of this subchapter.
    (b) Marking on the outside of each overpack must include the 
following:
    (1) ``USA-DOT 21WC'' and ``TYPE B'' as appropriate.
    (2) [Reserved]
[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974. Redesigntated by Amdt. 178-
97, 55 FR 52716, Dec. 21, 1990]

[[Page 881]]

Sec. 178.364-6    Typical assembly detail.
[GRAPHIC] [TIFF OMITTED] TC02MR91.085

[Amdt. 178-35, 39 FR 45253, Dec. 31, 1974; 40 FR 2435, Jan. 31, 1975. 
Redesigntated by Amdt. 178-97, 55 FR 52716, Dec. 21, 1990]



      Subpart L--Non-bulk Performance-oriented Packaging Standards

    Source:  Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, unless otherwise 
noted.



Sec. 178.500  Purpose, scope and definitions.

    (a) This subpart prescribes certain requirements for non-bulk 
packagings for hazardous materials. Standards for these packagings are 
based on the UN Recommendations.
    (b) Terms used in this subpart are defined in Sec. 171.8 of this 
subchapter.



Sec. 178.502  Identification codes for packagings.

    (a) Identification codes for designating kinds of packagings consist 
of the following:
    (1) A numeral indicating the kind of packaging, as follows:
    (i) ``1'' means a drum.
    (ii) ``2'' means a wooden barrel.
    (iii) ``3'' means a jerrican.
    (iv) ``4'' means a box.
    (v) ``5'' means a bag.
    (vi) ``6'' means a composite packaging.
    (vii) ``7'' means a pressure receptacle.
    (2) A capital letter indicating the material of construction, as 
follows:
    (i) ``A'' means steel (all types and surface treatments).
    (ii) ``B'' means aluminum.
    (iii) ``C'' means natural wood.
    (iv) ``D'' means plywood.
    (v) ``F'' means reconstituted wood.
    (vi) ``G'' means fiberboard.
    (vii) ``H'' means plastic.
    (viii) ``L'' means textile.
    (ix) ``M'' means paper, multi-wall.
    (x) ``N'' means metal (other than steel or aluminum).
    (xi) ``P'' means glass, porcelain or stoneware.
    (3) A numeral indicating the category of packaging within the kind 
to which the packaging belongs. For example, for steel drums (``1A''), 
``1'' indicates a non-removable head drum (i.e., ``1A1'') and ``2'' 
indicates a removable head drum (i.e., ``1A2'').

[[Page 882]]

    (b) For composite packagings, two capital letters are used in 
sequence in the second position of the code, the first indicating the 
material of the inner receptacle and the second, that of the outer 
packaging. For example, a plastic receptacle in a steel drum is 
designated ``6HA1''.
    (c) For combination packagings, only the code number for the outer 
packaging is used.
    (d) Identification codes are set forth in the standards for 
packagings in Secs. 178.504 through 178.523 of this subpart.
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended by Amdt. 178-106, 
59 FR 67519, Dec. 29, 1994]



Sec. 178.503  Marking of packagings.

    (a) A manufacturer must mark every packaging that is represented as 
manufactured to meet a UN standard with the marks specified in this 
section. The markings must be durable, legible and placed in a location 
and of such a size relative to the packaging as to be readily visible, 
as specified in Sec. 178.3(a). Except as otherwise provided in this 
section, every reusable packaging liable to undergo a reconditioning 
process which might obliterate the packaging marks must bear the marks 
specified in paragraphs (a)(1) through (a)(6) and (a)(9) of this section 
in a permanent form (e.g. embossed) able to withstand the reconditioning 
process. A marking may be applied in a single line or in multiple lines 
provided the correct sequence is used. As illustrated by the examples in 
paragraph (e) of this section, the following information must be 
presented in the correct sequence. Slash marks should be used to 
separate this information. A packaging conforming to a UN standard must 
be marked as follows:
    (1) The United Nations symbol as illustrated in paragraph (e)(1) of 
this section (for embossed metal receptacles, the letters UN may be 
applied in place of the symbol);
    (2) A packaging identification code designating the type of 
packaging, the material of construction and, when appropriate, the 
category of packaging under Secs. 178.504 through 178.523 of this 
subpart within the type to which the packaging belongs. The letter ``V'' 
must follow the packaging identification code on packagings tested in 
accordance with Sec. 178.601(g)(2); for example, ``4GV''. The letter 
``W'' must follow the packaging identification code on packagings when 
required by an approval under the provisions of Sec. 178.601(h) of this 
part;
    (3) A letter identifying the performance standard under which the 
packaging design type has been successfully tested, as follows:
    (i) X--for packagings meeting Packing Group I, II and III tests;
    (ii) Y--for packagings meeting Packing Group II and III tests; or
    (iii) Z--for packagings only meeting Packing Group III tests;
    (4) A designation of the specific gravity or mass for which the 
packaging design type has been tested, as follows:
    (i) For packagings without inner packagings intended to contain 
liquids, the designation shall be the specific gravity rounded down to 
the first decimal but may be omitted when the specific gravity does not 
exceed 1.2; and
    (ii) For packagings intended to contain solids or inner packagings, 
the designation shall be the maximum gross mass in kilograms;
    (5)(i) For single and composite packagings intended to contain 
liquids, the test pressure in kilopascals rounded down to the nearest 10 
kPa of the hydrostatic pressure test that the packaging design type has 
successfully passed;
    (ii) For packagings intended to contain solids or inner packagings, 
the letter ``S'';
    (6) The last two digits of the year of manufacture. Packagings of 
types 1H and 3H shall also be marked with the month of manufacture in 
any appropriate manner; this may be marked on the packaging in a 
different place from the remainder of the markings;
    (7) The state authorizing allocation of the mark. The letters `USA' 
indicate that the packaging is manufactured and marked in the United 
States in compliance with the provisions of this subchapter;
    (8) The name and address or symbol of the manufacturer or the 
approval agency certifying compliance with subpart L and subpart M of 
this part. Symbols, if used, must be registered

[[Page 883]]

with the Associate Administrator for Hazardous Materials Safety;
    (9) For metal or plastic drums or jerricans intended for reuse or 
reconditioning as single packagings or the outer packagings of a 
composite packaging, the thickness of the packaging material, expressed 
in millimeters (rounded to the nearest 0.1 mm), as follows:
    (i) Metal drums or jerricans must be marked with the nominal 
thickness of the metal used in the body. The marked nominal thickness 
must not exceed the minimum thickness of the steel used by more than the 
thickness tolerance stated in ISO Standard 3574. (See Appendix C of this 
part.) The unit of measure is not required to be marked. When the 
nominal thickness of either head of a metal drum is thinner than that of 
the body, the nominal thickness of the top head, body, and bottom head 
must be marked (eg., ``1.0-1.2-1.0'' or ``0.9-1.0-1.0'').
    (ii) Plastic drums or jerricans must be marked with the minimum 
thickness of the packaging material. Minimum thicknesses of plastic must 
be as determined in accordance with Sec. 173.28(b)(4). The unit of 
measure is not required to be marked;
    (10) In addition to the markings prescribed in paragraphs (a)(1) 
through (a)(9) of this section, every new metal drum having a capacity 
greater than 100 L must bear the marks described in paragraphs (a)(1) 
through (a)(6), and (a)(9)(i) of this section, in a permanent form, on 
the bottom. The markings on the top head or side of these packagings 
need not be permanent, and need not include the thickness mark described 
in paragraph (a)(9) of this section. This marking indicates a drum's 
characteristics at the time it was manufactured, and the information in 
paragraphs (a)(1) through (a)(6) of this section that is marked on the 
top head or side must be the same as the information in paragraphs 
(a)(1) through (a)(6) of this section permanently marked by the original 
manufacturer on the bottom of the drum; and
    (11) Rated capacity of the packaging expressed in liters may be 
marked.
    (b) For a packaging with a removable head, the markings may not be 
applied only to the removable head.
    (c) Marking of reconditioned packagings. (1) If a packaging is 
reconditioned, it shall be marked by the reconditioner near the marks 
required in paragraphs (a)(1) through (6) of this section with the 
following additional information:
    (i) The name of the country in which the reconditioning was 
performed (in the United States, use the letters ``USA'');
    (ii) The name and address or symbol of the reconditioner. Symbols, 
if used, must be registered with the Associate Administrator for 
Hazardous Materials Safety;
    (iii) The last two digits of the year of reconditioning;
    (iv) The letter ``R''; and
    (v) For every packaging successfully passing a leakproofness test, 
the additional letter ``L''.
    (2) When, after reconditioning, the markings required by paragraph 
(a)(1) through (a)(5) of this section no longer appear on the top head 
or the side of the metal drum, the reconditioner must apply them in a 
durable form followed by the markings in paragraph (c)(1) of this 
section. These markings may identify a different performance capability 
than that for which the original design type had been tested and marked, 
but may not identify a greater performance capability. The markings 
applied in accordance with this paragraph may be different from those 
which are permanently marked on the bottom of a drum in accordance with 
paragraph (a)(10) of this section.
    (d) Marking of remanufactured packagings. For remanufactured metal 
drums, if there is no change to the packaging type and no replacement or 
removal of integral structural components, the required markings need 
not be permanent (e.g., embossed). Every other remanufactured drum must 
bear the marks required in paragraphs (a)(1) through (a)(6) of this 
section in a permanent form (e.g., embossed) on the top head or side. If 
the metal thickness marking required in paragraph (a)(9)(i) of this 
section does not appear on the bottom of the drum, or if it is no longer 
valid, the remanufacturer also

[[Page 884]]

must mark this information in permanent form.
    (e) The following are examples of symbols and required markings:
    (1) The United Nations symbol is:
    [GRAPHIC] [TIFF OMITTED] TC02MR91.086
    
    (2) Examples of markings for a new packaging are as follows:
    (i) For a fiberboard box designed to contain an inner packaging:
    [GRAPHIC] [TIFF OMITTED] TC02MR91.087
    

(as in Sec. 178.503 (a)(1) through (a)(9) of this subpart).
    (ii) For a steel drum designed to contain liquids:
    [GRAPHIC] [TIFF OMITTED] TC02MR91.088
    

(as in Sec. 178.503 (a)(1) through (a)(10) of this subpart).
    (iii) For a steel drum to transport solids or inner packagings:
    [GRAPHIC] [TIFF OMITTED] TC02MR91.089
    

(as in Sec. 178.503 (a)(1) through (a)(8) of this subpart).
    (3) Examples of markings for reconditioned packagings are as 
follows:
[GRAPHIC] [TIFF OMITTED] TC02MR91.090


(as in Sec. 178.503(c) (1), (2), (3), (4), and (5)).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended at 56 FR 66284, 
Dec. 20, 1991; Amdt. 178-102, 59 FR 28493, June 2, 1994; Amdt. 178-106, 
59 FR 67520, 67521, Dec. 29, 1994; Amdt. 178-107, 60 FR 26806, May 18, 
1995; 62 FR 51561, Oct. 1, 1997]



Sec. 178.504  Standards for steel drums.

    (a) The following are identification codes for steel drums:
    (1) 1A1 for a non-removable head steel drum; and
    (2) 1A2 for a removable head steel drum.
    (b) Construction requirements for steel drums are as follows:
    (1) Body and heads must be constructed of steel sheet of suitable 
type and adequate thickness in relation to the capacity and intended use 
of the drum. Minimum thickness and marking requirements in 
Secs. 173.28(b)(4) and 178.503(a)(9) of this subchapter apply to drums 
intended for reuse.
    (2) Body seams must be welded on drums designed to contain more than 
40 L (11 gallons) of liquids. Body seams must be mechanically seamed or 
welded on drums intended to contain only solids or 40 L (11 gallons) or 
less of liquids.
    (3) Chimes must be mechanically seamed or welded. Separate 
reinforcing rings may be applied.
    (4) The body of a drum of a capacity greater than 60 L (16 gallons) 
may have

[[Page 885]]

at least two expanded rolling hoops or two separate rolling hoops. If 
there are separate rolling hoops, they must be fitted tightly on the 
body and so secured that they cannot shift. Rolling hoops may not be 
spot-welded.
    (5) Openings for filling, emptying and venting in the bodies or 
heads of non-removable head (1A1) drums may not exceed 7.0 cm (3 inches) 
in diameter. Drums with larger openings are considered to be of the 
removable head type (1A2). Closures for openings in the bodies and heads 
of drums must be so designed and applied that they will remain secure 
and leakproof under normal conditions of transport. Closure flanges may 
be mechanically seamed or welded in place. Gaskets or other sealing 
elements must be used with closures unless the closure is inherently 
leakproof.
    (6) Closure devices for removable head drums must be so designed and 
applied that they will remain secure and drums will remain leakproof 
under normal conditions of transport. Gaskets or other sealing elements 
must be used with all removable heads.
    (7) If materials used for body, heads, closures, and fittings are 
not in themselves compatible with the contents to be transported, 
suitable internal protective coatings or treatments must be applied. 
These coatings or treatments must retain their protective properties 
under normal conditions of transport.
    (8) Maximum capacity of drum: 450 L (119 gallons).
    (9) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended at 56 FR 66284, 
Dec. 20, 1991; Amdt. 178-110, 60 FR 49111, Sept. 21, 1995]



Sec. 178.505  Standards for aluminum drums.

    (a) The following are the identification codes for aluminum drums:
    (1) 1B1 for a non-removable head aluminum drum; and
    (2) 1B2 for a removable head aluminum drum.
    (b) Construction requirements for aluminum drums are as follows:
    (1) Body and heads must be constructed of aluminum at least 99 
percent pure or an aluminum base alloy. Material must be of suitable 
type and adequate thickness in relation to the capacity and the intended 
use of the drum. Minimum thickness and marking requirements in 
Secs. 173.28(b)(4) and 178.503(a)(9) of this subchapter apply to drums 
intended for reuse.
    (2) All seams must be welded. Chime seams, if any, must be 
reinforced by the application of separate reinforcing rings.
    (3) The body of a drum of a capacity greater than 60 L (16 gallons) 
may have at least two expanded rolling hoops or two separate rolling 
hoops. If there are separate rolling hoops, the hoops must be fitted 
tightly on the body and so secured that they cannot shift. Rolling hoops 
may not be spot-welded.
    (4) Openings for filling, emptying, or venting in the bodies or 
heads of non-removable head (1B1) drums may not exceed 7.0 cm (3 inches) 
in diameter. Drums with larger openings are considered to be of the 
removable head type (1B2). Closures for openings in the bodies and heads 
of drums must be so designed and applied that they will remain secure 
and leakproof under normal conditions of transport. Closure flanges may 
be welded in place so that the weld provides a leakproof seam. Gaskets 
or other sealing elements must be used with closures unless the closure 
is inherently leakproof.
    (5) Closure devices for removable head drums must be so designed and 
applied that they remain secure and drums remain leakproof under normal 
conditions of transport. Gaskets or other sealing elements must be used 
with all removable heads.
    (6) Maximum capacity of drum: 450 L (119 gallons).
    (7) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended at 56 FR 66284, 
Dec. 20, 1991; Amdt. 178-102, 59 FR 28494, June 2, 1994]



Sec. 178.506  Standards for metal drums other than steel or aluminum.

    (a) The following are the identification codes for metal drums other 
than steel or aluminum:
    (1) 1N1 for a non-removable head metal drum; and
    (2) 1N2 for a removable head metal drum.

[[Page 886]]

    (b) Construction requirements for metal drums other than steel or 
aluminum are as follows:
    (1) Body and heads must be constructed of metal (other than steel or 
aluminum) of suitable type and adequate thickness in relation to the 
capacity and the intended use of the drum. Minimum thickness and marking 
requirements in Secs. 173.28(b)(4) and 178.503(a)(9) of this subchapter 
apply to drums intended for reuse.
    (2) All seams must be welded. Chime seams, if any, must be 
reinforced by the application of separate reinforcing rings.
    (3) The body of a drum of a capacity greater than 60 L (16 gallons) 
may have at least two expanded rolling hoops or two separate rolling 
hoops. If there are separate rolling hoops, the hoops must be fitted 
tightly on the body and so secured that they cannot shift. Rolling hoops 
may not be spot-welded.
    (4) Openings for filling, emptying, or venting in the bodies or 
heads of non-removable head (1N1) drums may not exceed 7.0 cm (3 inches) 
in diameter. Drums with larger openings are considered to be of the 
removable head type (1N2). Closures for openings in the bodies and heads 
of drums must be so designed and applied that they will remain secure 
and leakproof under normal conditions of transport. Closure flanges may 
be welded in place so that the weld provides a leakproof seam. Gaskets 
or other sealing elements must be used with closures unless the closure 
is inherently leakproof.
    (5) Closure devices for removable head drums must be so designed and 
applied that they remain secure and drums remain leakproof under normal 
conditions of transport. Gaskets or other sealing elements must be used 
with all removable heads.
    (6) Maximum capacity of drum: 450 L (119 gallons).
    (7) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended at 56 FR 66285, 
Dec. 20, 1991; Amdt. 178-102, 59 FR 28494, June 2, 1994]



Sec. 178.507  Standards for plywood drums.

    (a) The identification code for a plywood drum is 1D.
    (b) Construction requirements for plywood drums are as follows:
    (1) The wood used must be well-seasoned, commercially dry and free 
from any defect likely to lessen the effectiveness of the drum for the 
purpose intended. A material other than plywood, of at least equivalent 
strength and durability, may be used for the manufacture of the heads.
    (2) At least two-ply plywood must be used for the body and at least 
three-ply plywood for the heads; the plies must be firmly glued 
together, with their grains crosswise.
    (3) The body and heads of the drum and their joints must be of a 
design appropriate to the capacity of the drum and its intended use.
    (4) In order to prevent sifting of the contents, lids must be lined 
with kraft paper or some other equivalent material which must be 
securely fastened to the lid and extend to the outside along its full 
circumference.
    (5) Maximum capacity of drum: 250 L (66 gallons).
    (6) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended at 57 FR 45465, 
Oct. 1, 1992]



Sec. 178.508  Standards for fiber drums.

    (a) The identification code for a fiber drum is 1G.
    (b) Construction requirements for fiber drums are as follows:
    (1) The body of the drum must be constructed of multiple plies of 
heavy paper or fiberboard (without corrugations) firmly glued or 
laminated together and may include one or more protective layers of 
bitumen, waxed kraft paper, metal foil, plastic material, or similar 
materials.
    (2) Heads must be of natural wood, fiberboard, metal, plywood, 
plastics, or other suitable material and may include one or more 
protective layers of bitumen, waxed kraft paper, metal foil, plastic 
material, or similar material.
    (3) The body and heads of the drum and their joints must be of a 
design appropriate to the capacity and intended use of the drum.
    (4) The assembled packaging must be sufficiently water-resistant so 
as not to delaminate under normal conditions of transport.

[[Page 887]]

    (5) Maximum capacity of drum: 450 L (119 gallons).
    (6) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended by Amdt. 178-106, 
59 FR 67521, Dec. 29, 1994]



Sec. 178.509  Standards for plastic drums and jerricans.

    (a) The following are identification codes for plastic drums and 
jerricans:
    (1) 1H1 for a non-removable head plastic drum;
    (2) 1H2 for a removable head plastic drum;
    (3) 3H1 for a non-removable head jerrican; and
    (4) 3H2 for a removable head jerrican.
    (b) Construction requirements for plastic drums and jerricans are as 
follows:
    (1) The packaging must be manufactured from suitable plastic 
material and be of adequate strength in relation to its capacity and 
intended use. No used material other than production residues or regrind 
from the same manufacturing process may be used. The packaging must be 
adequately resistant to aging and to degradation caused either by the 
substance contained or by ultra-violet radiation. Any permeation of the 
substance contained may not constitute a danger under normal conditions 
of transport.
    (2) If protection against ultra-violet radiation is required, it 
must be provided by the addition of carbon black or other suitable 
pigments or inhibitors. These additives must be compatible with the 
contents and remain effective throughout the life of the packaging. 
Where use is made of carbon black, pigments or inhibitors other than 
those used in the manufacture of the design type, retesting may be 
omitted if the carbon black content does not exceed 2 percent by mass or 
if the pigment content does not exceed 3 percent by mass; the content of 
inhibitors of ultra-violet radiation is not limited.
    (3) Additives serving purposes other than protection against ultra-
violet radiation may be included in the composition of the plastic 
material provided they do not adversely affect the chemical and physical 
properties of the packaging material.
    (4) The wall thickness at every point of the packaging must be 
appropriate to its capacity and its intended use, taking into account 
the stresses to which each point is liable to be exposed. Minimum 
thickness and marking requirements in Secs. 173.28(b)(4) and 
178.503(a)(9) of this subchapter apply to drums intended for reuse.
    (5) Openings for filling, emptying and venting in the bodies or 
heads of non-removable head (1H1) drums and jerricans (3H1) may not 
exceed 7.0 cm (3 inches) in diameter. Drums and jerricans with larger 
openings are considered to be of the removable head type (1H2 and 3H2). 
Closures for openings in the bodies or heads of drums and jerricans must 
be so designed and applied that they remain secure and leakproof under 
normal conditions of transport. Gaskets or other sealing elements must 
be used with closures unless the closure is inherently leakproof.
    (6) Closure devices for removable head drums and jerricans must be 
so designed and applied that they remain secure and leakproof under 
normal conditions of transport. Gaskets must be used with all removable 
heads unless the drum or jerrican design is such that when the removable 
head is properly secured, the drum or jerrican is inherently leakproof.
    (7) Maximum capacity of drums and jerricans: 1H1, 1H2: 450 L (119 
gallons); 3H1, 3H2: 60 L (16 gallons).
    (8) Maximum net mass: 1H1, 1H2: 400 kg (882 pounds); 3H1, 3H2: 120 
kg (265 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended by Amdt. 178-102, 
59 FR 28494, June 2, 1994]



Sec. 178.510  Standards for wooden barrels.

    (a) The following are identification codes for wooden barrels:
    (1) 2C1 for a bung type wooden barrel; and
    (2) 2C2 for a slack type (removable head) wooden barrel.
    (b) Construction requirements for wooden barrels are as follows:
    (1) The wood used must be of good quality, straight-grained, well-
seasoned and free from knots, bark, rotten wood, sapwood or other 
defects likely

[[Page 888]]

to lessen the effectiveness of the barrel for the purpose intended.
    (2) The body and heads must be of a design appropriate to the 
capacity and intended use of the barrel.
    (3) Staves and heads must be sawn or cleft with the grain so that no 
annual ring extends over more than half the thickness of a stave or 
head.
    (4) Barrel hoops must be of steel or iron of good quality. The hoops 
of 2C2 barrels may be of a suitable hardwood.
    (5) For wooden barrels 2C1, the diameter of the bung-hole may not 
exceed half the width of the stave in which it is placed.
    (6) For wooden barrels 2C2, heads must fit tightly into crozes.
    (7) Maximum capacity of barrel: 250 L (66 gallons).
    (8) Maximum net mass: 400 kg (882 pounds).



Sec. 178.511  Standards for aluminum and steel jerricans.

    (a) The following are identification codes for aluminum and steel 
jerricans:
    (1) 3A1 for a non-removable head steel jerrican;
    (2) 3A2 for a removable head steel jerrican;
    (3) 3B1 for a non-removable head aluminum jerrican; and
    (4) 3B2 for a removable head aluminum jerrican.
    (b) Construction requirements for aluminum and steel jerricans are 
as follows:
    (1) For steel jerricans the body and heads must be constructed of 
steel sheet of suitable type and adequate thickness in relation to the 
capacity of the jerrican and its intended use. Minimum thickness and 
marking requirements in Secs. 173.28(b)(4) and 178.503(a)(9) of this 
subchapter apply to jerricans intended for reuse.
    (2) For aluminum jerricans the body and heads must be constructed of 
aluminum at least 99% pure or of an aluminum base alloy. Material must 
be of a type and of adequate thickness in relation to the capacity of 
the jerrican and to its intended use.
    (3) Chimes of all jerricans must be mechanically seamed or welded. 
Body seams of jerricans intended to carry more than 40 L (11 gallons) of 
liquid must be welded. Body seams of jerricans intended to carry 40 L 
(11 gallons) or less must be mechanically seamed or welded.
    (4) Openings in jerricans (3A1) may not exceed 7.0 cm (3 inches) in 
diameter. Jerricans with larger openings are considered to be of the 
removable head type. Closures must be so designed that they remain 
secure and leakproof under normal conditions of transport. Gaskets or 
other sealing elements must be used with closures, unless the closure is 
inherently leakproof.
    (5) If materials used for body, heads, closures and fittings are not 
in themselves compatible with the contents to be transported, suitable 
internal protective coatings or treatments must be applied. These 
coatings or treatments must retain their protective properties under 
normal conditions of transport.
    (6) Maximum capacity of jerrican: 60 L (16 gallons).
    (7) Maximum net mass: 120 kg (265 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended by Amdt. 178-102, 
59 FR 28494, June 2, 1994; Amdt. 178-119, 62 FR 24742, May 6, 1997]



Sec. 178.512  Standards for steel or aluminum boxes.

    (a) The following are identification codes for steel or aluminum 
boxes:
    (1) 4A for a steel box; and
    (2) 4B for an aluminum box.
    (b) Construction requirements for steel or aluminum boxes are as 
follows:
    (1) The strength of the metal and the construction of the box must 
be appropriate to the capacity and intended use of the box.
    (2) Boxes must be lined with fiberboard or felt packing pieces or 
must have an inner liner or coating of suitable material in accordance 
with subpart C of part 173 of this subchapter. If a double seamed metal 
liner is used, steps must be taken to prevent the ingress of materials, 
particularly explosives, into the recesses of the seams.
    (3) Closures may be of any suitable type, and must remain secure 
under normal conditions of transport.
    (4) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended by Amdt. 178-106, 
59 FR 67521, Dec. 29, 1994]

[[Page 889]]



Sec. 178.513  Standards for boxes of natural wood.

    (a) The following are the identification codes for boxes of natural 
wood:
    (1) 4C1 for an ordinary box; and
    (2) 4C2 for a box with sift-proof walls.
    (b) Construction requirements for boxes of natural wood are as 
follows:
    (1) The wood used must be well-seasoned, commercially dry and free 
from defects that would materially lessen the strength of any part of 
the box. The strength of the material used and the method of 
construction must be appropriate to the capacity and intended use of the 
box. The tops and bottoms may be made of water-resistant reconstituted 
wood such as hard board, particle board or other suitable type.
    (2) Fastenings must be resistant to vibration experienced under 
normal conditions of transportation. End grain nailing must be avoided 
whenever practicable. Joints which are likely to be highly stressed must 
be made using clenched or annular ring nails or equivalent fastenings.
    (3) Each part of the 4C2 box must be one piece or equivalent. Parts 
are considered equivalent to one piece when one of the following methods 
of glued assembly is used: Linderman joint, tongue and groove joint, 
ship lap or rabbet joint, or butt joint with at least two corrugated 
metal fasteners at each joint.
    (4) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended by Amdt. 178-106, 
59 FR 67521, Dec. 29, 1994]



Sec. 178.514  Standards for plywood boxes.

    (a) The identification code for a plywood box is 4D.
    (b) Construction requirements for plywood boxes are as follows:
    (1) Plywood used must be at least 3 ply. It shall be made from well-
seasoned rotary cut, sliced or sawn veneer, commercially dry and free 
from defects that would materially lessen the strength of the box. The 
strength of the material used and the method of construction must be 
appropriate to the capacity and intended use of the box. All adjacent 
plies must be glued with water-resistant adhesive. Other suitable 
materials may be used together with plywood in the construction of 
boxes. Boxes must be nailed or secured to corner posts or ends or 
assembled with other equally suitable devices.
    (2) Maximum net mass: 400 kg (882 pounds).



Sec. 178.515  Standards for reconstituted wood boxes.

    (a) The identification code for a reconstituted wood box is 4F.
    (b) Construction requirements for reconstituted wood boxes are as 
follows:
    (1) The walls of boxes must be made of water-resistant, 
reconstituted wood such as hardboard, particle board, or other suitable 
type. The strength of the material used and the method of construction 
must be appropriate to the capacity of the boxes and their intended use.
    (2) Other parts of the box may be made of other suitable materials.
    (3) Boxes must be securely assembled by means of suitable devices.
    (4) Maximum net mass: 400 kg (882 pounds).



Sec. 178.516  Standards for fiberboard boxes.

    (a) The identification code for a fiberboard box is 4G.
    (b) Construction requirements for fiberboard boxes are as follows:
    (1) Strong, solid or double-faced corrugated fiberboard (single or 
multi-wall) must be used, appropriate to the capacity and intended use 
of the box. The water resistance of the outer surface must be such that 
the increase in mass, as determined in a test carried out over a period 
of 30 minutes by the Cobb method of determining water absorption, is not 
greater than 155 g per square meter (0.0316 pounds per square foot)--see 
ISO International Standard 535. Fiberboard must have proper bending 
qualities. Fiberboard must be cut, creased without cutting through any 
thickness of fiberboard, and slotted so as to permit assembly without 
cracking, surface breaks, or undue bending. The fluting of corrugated 
fiberboard must be firmly glued to the facings.
    (2) The ends of boxes may have a wooden frame or be entirely of wood 
or other suitable material. Reinforcements of wooden battens or other 
suitable material may be used.

[[Page 890]]

    (3) Manufacturing joints. (i) Manufacturing joints in the bodies of 
boxes must be--
    (A) Taped;
    (B) Lapped and glued; or
    (C) Lapped and stitched with metal staples.
    (ii) Lapped joints must have an appropriate overlap.
    (4) Where closing is effected by gluing or taping, a water resistant 
adhesive must be used.
    (5) Boxes must be designed so as to provide a snug fit to the 
contents.
    (6) Maximum net mass: 400 kg (882 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, and amended by Amdt. 178-99, 
58 FR 51534, Oct. 1, 1993; Amdt. 178-106, 59 FR 67521, Dec. 29, 1994]



Sec. 178.517  Standards for plastic boxes.

    (a) The following are identification codes for plastic boxes:
    (1) 4H1 for an expanded plastic box; and
    (2) 4H2 for a solid plastic box.
    (b) Construction requirements for plastic boxes are as follows:
    (1) The box must be manufactured from suitable plastic material and 
be of adequate strength in relation to its capacity and intended use. 
The box must be adequately resistant to aging and to degradation caused 
either by the substance contained or by ultra-violet radiation.
    (2) An expanded plastic box must consist of two parts made of a 
molded expanded plastic material: a bottom section containing cavities 
for the inner receptacles, and a top section covering and interlocking 
with the bottom section. The top and bottom sections must be so designed 
that the inner receptacles fit snugly. The closure cap for any inner 
receptacle may not be in contact with the inside of the top section of 
the box.
    (3) For transportation, an expanded plastic box must be closed with 
a self-adhesive tape having sufficient tensile strength to prevent the 
box from opening. The adhesive tape must be weather-resistant and its 
adhesive compatible with the expanded plastic material of the box. Other 
closing devices at least equally effective may be used.
    (4) For solid plastic boxes, protection against ultra-violet 
radiation, if required, must be provided by the addition of carbon black 
or other suitable pigments or inhibitors. These additives must be 
compatible with the contents and remain effective throughout the life of 
the box. Where use is made of carbon black pigment or inhibitors other 
than those used in the manufacture of the tested design type, retesting 
may be waived if the carbon black content does not exceed 2 percent by 
mass or if the pigment content does not exceed 3 percent by mass; the 
content of inhibitors of ultra-violet radiation is not limited.
    (5) Additives serving purposes other than protection against ultra-
violet radiation may be included in the composition of the plastic 
material if they do not adversely affect the material of the box. 
Addition of these additives does not change the design type.
    (6) Solid plastic boxes must have closure devices made of a suitable 
material of adequate strength and so designed as to prevent the box from 
unintentionally opening.
    (7) Maximum net mass 4H1: 60 kg (132 pounds); 4H2: 400 kg (882 
pounds).



Sec. 178.518  Standards for woven plastic bags.

    (a) The following are identification codes for woven plastic bags:
    (1) 5H1 for an unlined or non-coated woven plastic bag;
    (2) 5H2 for a sift-proof woven plastic bag; and
    (3) 5H3 for a water-resistant woven plastic bag.
    (b) Construction requirements for woven plastic fabric bags are as 
follows:
    (1) Bags must be made from stretched tapes or monofilaments of a 
suitable plastic material. The strength of the material used and the 
construction of the bag must be appropriate to the capacity and intended 
use of the bag.
    (2) If the fabric is woven flat, the bags must be made by sewing or 
some other method ensuring closure of the bottom and one side. If the 
fabric is tubular, the bag must be closed by sewing, weaving, or some 
other equally strong method of closure.
    (3) Bags, sift-proof, 5H2 must be made sift-proof by appropriate 
means such as use of paper or a plastic film bonded to

[[Page 891]]

the inner surface of the bag or one or more separate inner liners made 
of paper or plastic material.
    (4) Bags, water-resistant, 5H3: To prevent the entry of moisture, 
the bag must be made waterproof by appropriate means, such as separate 
inner liners of water-resistant paper (e.g., waxed kraft paper, double-
tarred kraft paper or plastic-coated kraft paper), or plastic film 
bonded to the inner or outer surface of the bag, or one or more inner 
plastic liners.
    (5) Maximum net mass: 50 kg (110 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, and amended by Amdt. 178-99, 
58 FR 51534, Oct. 1, 1993]



Sec. 178.519  Standards for plastic film bags.

    (a) The identification code for a plastic film bag is 5H4.
    (b) Construction requirements for plastic film bags are as follows:
    (1) Bags must be made of a suitable plastic material. The strength 
of the material used and the construction of the bag must be appropriate 
to the capacity and the intended use of the bag. Joints and closures 
must be capable of withstanding pressures and impacts liable to occur 
under normal conditions of transportation.
    (2) Maximum net mass: 50 kg (110 pounds).



Sec. 178.520  Standards for textile bags.

    (a) The following are identification codes for textile bags:
    (1) 5L1 for an unlined or non-coated textile bag;
    (2) 5L2 for a sift-proof textile bag; and
    (3) 5L3 for a water-resistant textile bag.
    (b) Construction requirements for textile bags are as follows:
    (1) The textiles used must be of good quality. The strength of the 
fabric and the construction of the bag must be appropriate to the 
capacity and intended use of the bag.
    (2) Bags, sift-proof, 5L2: The bag must be made sift-proof, by 
appropriate means, such as by the use of paper bonded to the inner 
surface of the bag by a water-resistant adhesive such as bitumen, 
plastic film bonded to the inner surface of the bag, or one or more 
inner liners made of paper or plastic material.
    (3) Bags, water-resistant, 5L3: To prevent entry of moisture, the 
bag must be made waterproof by appropriate means, such as by the use of 
separate inner liners of water-resistant paper (e.g., waxed kraft paper, 
tarred paper, or plastic-coated kraft paper), or plastic film bonded to 
the inner surface of the bag, or one or more inner liners made of 
plastic material or metalized film or foil.
    (4) Maximum net mass: 50 kg (110 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended at 56 FR 66285, 
Dec. 20, 1991]



Sec. 178.521  Standards for paper bags.

    (a) The following are identification codes for paper bags:
    (1) 5M1 for a multi-wall paper bag; and
    (2) 5M2 for a multi-wall water-resistant paper bag.
    (b) Construction requirements for paper bags are as follows:
    (1) Bags must be made of a suitable kraft paper, or of an equivalent 
paper with at least three plies. The strength of the paper and the 
construction of the bag must be appropriate to the capacity and intended 
use of the bag. Seams and closures must be sift-proof.
    (2) Paper bags 5M2: To prevent the entry of moisture, a bag of four 
plies or more must be made waterproof by the use of either a water-
resistant ply as one of the two outermost plies or a water-resistant 
barrier made of a suitable protective material between the two outermost 
plies. A 5M2 bag of three plies must be made waterproof by the use of a 
water-resistant ply as the outermost ply. When there is danger of the 
lading reacting with moisture, or when it is packed damp, a waterproof 
ply or barrier, such as double-tarred kraft paper, plastics-coated kraft 
paper, plastics film bonded to the inner surface of the bag, or one or 
more inner plastics liners, must also be placed next to the substance. 
Seams and closures must be waterproof.

[[Page 892]]

    (3) Maximum net mass: 50 kg (110 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended at 56 FR 66285, 
Dec. 20, 1991; Amdt. 178-106, 59 FR 67521, Dec. 29, 1994]



Sec. 178.522  Standards for composite packagings with inner plastic receptacles.

    (a) The following are the identification codes for composite 
packagings with inner plastic receptacles:
    (1) 6HA1 for a plastic receptacle within a protective steel drum;
    (2) 6HA2 for a plastic receptacle within a protective steel crate or 
box;
    (3) 6HB1 for a plastic receptacle within a protective aluminum drum.
    (4) 6HB2 for a plastic receptacle within a protective aluminum crate 
or box.
    (5) 6HC for a plastic receptacle within a protective wooden box.
    (6) 6HD1 for a plastic receptacle within a protective plywood drum;
    (7) 6HD2 for a plastic receptacle within a protective plywood box;
    (8) 6HG1 for a plastic receptacle within a protective fiber drum;
    (9) 6HG2 for a plastic receptacle within a protective fiberboard 
box;
    (10) 6HH1 for a plastic receptacle within a protective plastic drum; 
and
    (11) 6HH2 for a plastic receptacle within a protective plastic box.
    (b) Construction requirements for composite packagings with inner 
receptacles of plastic are as follows:
    (1) Inner receptacles must be constructed under the applicable 
construction requirements prescribed in Sec. 178.509(b) (1) through (7) 
of this subpart.
    (2) The inner plastic receptacle must fit snugly inside the outer 
packaging, which must be free of any projections which may abrade the 
plastic material.
    (3) Outer packagings must be constructed as follows:
    (i) 6HA1 or 6HB1: Protective packaging must conform to the 
requirements for steel drums in Sec. 178.504(b) of this subpart, or 
aluminum drums in Sec. 178.505(b) of this subpart.
    (ii) 6HA2 or 6HB2: Protective packagings with steel or aluminum 
crate must conform to the requirements for steel or aluminum boxes found 
in Sec. 178.512(b) of this subpart.
    (iii) 6HC protective packaging must conform to the requirements for 
wooden boxes in Sec. 178.513(b) of this subpart.
    (iv) 6HD1: Protective packaging must conform to the requirements for 
plywood drums, in Sec. 178.507(b) of this subpart.
    (v) 6HD2: Protective packaging must conform to the requirements of 
plywood boxes, in Sec. 178.514(b) of this subpart.
    (vi) 6HG1: Protective packaging must conform to the requirements for 
fiber drums, in Sec. 178.508(b) of this subpart.
    (vii) 6HG2: protective packaging must conform to the requirements 
for fiberboard boxes, in Sec. 178.516(b) of this subpart.
    (viii) 6HH1: Protective packaging must conform to the requirements 
for plastic drums, in Sec. 178.509(b).
    (ix) 6HH2: Protective packaging must conform to the requirements for 
plastic boxes, in Sec. 178.517(b).
    (4) Maximum capacity of inner receptacles is as follows: 6HA1, 6HB1, 
6HD1, 6HG1, 6HH1--250 L (66 gallons); 6HA2, 6HB2, 6HC, 6HD2, 6HG2, 
6HH2--60 L (16 gallons).
    (5) Maximum net mass is as follows: 6HA1, 6HB1, 6HD1, 6HG1, 6HH1--
400kg (882 pounds); 6HB2, 6HC, 6HD2, 6HG2, 6HH2--75 kg (165 pounds).
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, as amended by Amdt. 178-106, 
59 FR 67521, Dec. 29, 1994]



Sec. 178.523  Standards for composite packagings with inner glass, porcelain, or stoneware receptacles.

    (a) The following are identification codes for composite packagings 
with inner receptacles of glass, porcelain, or stoneware:
    (1) 6PA1 for glass, porcelain, or stoneware receptacles within a 
protective steel drum;
    (2) 6PA2 for glass, porcelain, or stoneware receptacles within a 
protective steel crate or box;
    (3) 6PB1 for glass, porcelain, or stoneware receptacles within a 
protective aluminum drum;
    (4) 6PB2 for glass, porcelain, or stoneware receptacles within a 
protective aluminum crate or box;
    (5) 6PC for glass, porcelain, or stoneware receptacles within a 
protective wooden box;

[[Page 893]]

    (6) 6PD1 for glass, porcelain, or stoneware receptacles within a 
protective plywood drum;
    (7) 6PD2 for glass, porcelain, or stoneware receptacles within a 
protective wickerwork hamper;
    (8) 6PG1 for glass, porcelain, or stoneware receptacles within a 
protective fiber drum;
    (9) 6PG2 for glass, porcelain, or stoneware receptacles within a 
protective fiberboard box;
    (10) 6PH1 for glass, porcelain, or stoneware receptacles within a 
protective expanded plastic packaging; and
    (11) 6PH2 for glass, porcelain, or stoneware receptacles within a 
protective solid plastic packaging.
    (b) Construction requirements for composite packagings with inner 
receptacles of glass, porcelain, or stoneware are as follows:
    (1) Inner receptacles must conform to the following requirements:
    (i) Receptacles must be of suitable form (cylindrical or pear-
shaped), be made of good quality materials free from any defect that 
could impair their strength, and be firmly secured in the outer 
packaging.
    (ii) Any part of a closure likely to come into contact with the 
contents of the receptacle must be resistant to those contents. Closures 
must be fitted so as to be leakproof and secured to prevent any 
loosening during transportation. Vented closures must conform to 
Sec. 173.24(f) of this subchapter.
    (2) Protective packagings must conform to the following 
requirements:
    (i) For receptacles with protective steel drum 6PAl, the drum must 
comply with Sec. 178.504(b) of this subpart. However, the removable lid 
required for this type of packaging may be in the form of a cap.
    (ii) For receptacles with protective packaging of steel crate or 
steel box 6PA2, the protective packaging must conform to the following:
    (A) Section 178.512(b) of this subpart.
    (B) In the case of cylindrical receptacles, the protective packaging 
must, when upright, rise above the receptacle and its closure; and
    (C) If the protective crate surrounds a pear-shaped receptacle and 
is of matching shape, the protective packaging must be fitted with a 
protective cover (cap).
    (iii) For receptacles with protective aluminum drum 6PB1, the 
requirements of Sec. 178.505(b) of this subpart apply to the protective 
packaging.
    (iv) For receptacles with protective aluminum box or crate 6PB2, the 
requirements of Sec. 178.512(b) of this subpart apply to the protective 
packaging.
    (v) For receptacles with protective wooden box 6PC, the requirements 
of Sec. 178.513(b) of this subpart apply to the protective packaging.
    (vi) For receptacles with protective plywood drum 6PD1, the 
requirements of Sec. 178.507(b) of this subpart apply to the protective 
packaging.
    (vii) For receptacles with protective wickerwork hamper 6PD2, the 
wickerwork hamper must be properly made with material of good quality. 
The hamper must be fitted with a protective cover (cap) so as to prevent 
damage to the receptacle.
    (viii) For receptacles with protective fiber drum 6PG1, the drum 
must conform to the requirements of Sec. 178.508(b) of this subpart.
    (ix) For receptacles with protective fiberboard box 6PG2, the 
requirements of Sec. 178.516(b) of this subpart apply to the protective 
packaging.
    (x) For receptacles with protective solid plastic or expanded 
plastic packaging 6PH1 or 6PH2, the requirements of Sec. 178.517(b) of 
this subpart apply to the protective packaging. Solid protective plastic 
packaging must be manufactured from high-density polyethylene from some 
other comparable plastic material. The removable lid required for this 
type of packaging may be a cap.
    (3) Quantity limitations are as follows:
    (i) Maximum net capacity for packaging for liquids: 60 L (16 
gallons).
    (ii) Maximum net mass for packagings for solids: 75 kg (165 pounds).



         Subpart M--Testing of Non-bulk Packagings and Packages

    Source:  Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, unless otherwise 
noted.

[[Page 894]]



Sec. 178.600  Purpose and scope.

    This subpart prescribes certain testing requirements for 
performance-oriented packagings identified in subpart L of this part.
[Amdt. 178-97, 55 FR 52717, Dec. 21, 1990, and amended by Amdt. 178-99, 
58 FR 51534, Oct. 1, 1993]



Sec. 178.601  General requirements.

    (a) General. The test procedures prescribed in this subpart are 
intended to ensure that packages containing hazardous materials can 
withstand normal conditions of transportation and are considered minimum 
requirements. Each packaging must be manufactured and assembled so as to 
be capable of successfully passing the prescribed tests and of 
conforming to the requirements of Sec. 173.24 of this subchapter at all 
times while in transportation.
    (b) Responsibility. It is the responsibility of the packaging 
manufacturer to assure that each package is capable of passing the 
prescribed tests. To the extent that a package assembly function, 
including final closure, is performed by the person who offers a 
hazardous material for transportation, that person is responsible for 
performing the function in accordance with Secs. 173.22 and 178.2 of 
this subchapter.
    (c) Definitions. For the purpose of this subpart:
    (1) Design qualification testing is the performance of the drop, 
leakproofness, hydrostatic pressure, stacking, and cooperage tests, as 
applicable, prescribed in Secs. 178.603, 178.604, 178.605, 178.606, or 
Sec. 178.607, respectively, for each new or different packaging, at the 
start of production of that packaging.
    (2) Periodic retesting is the performance of the drop, 
leakproofness, hydrostatic pressure, and stacking tests, as applicable, 
prescribed in Secs. 178.603, 178.604, 178.605, or Sec. 178.606, 
respectively, at the frequency specified in Sec. 178.601(e) of this 
subpart.
    (3) Production testing is the performance of the leakproofness test 
prescribed in Sec. 178.604 of this subpart on each single or composite 
packaging intended to contain a liquid.
    (4) A different packaging is one that differs (i.e. is not 
identical) from a previously produced packaging in structural design, 
size, material of construction, wall thickness or manner of construction 
but does not include:
    (i) A packaging which differs only in surface treatment;
    (ii) A combination packaging which differs only in that the outer 
packaging has been successfully tested with different inner packagings. 
A variety of such inner packagings may be assembled in this outer 
packaging without further testing;
    (iii) A plastic packaging which differs only with regard to 
additives which conform to Sec. 178.509(b)(3) or Sec. 178.517(b) (4) or 
(5) of this part;
    (iv) A combination packaging with inner packagings conforming to the 
provisions of paragraph (g) of this section;
    (v) Packagings which differ from the design type only in their 
lesser design height; or
    (vi) For a steel drum, variations in design elements which do not 
constitute a different design type under the provisions of paragraph 
(g)(8) of this section.
    (d) Design qualification testing. The packaging manufacturer shall 
achieve successful test results for the design qualification testing at 
the start of production of each new or different packaging.
    (e) Periodic retesting. The packaging manufacturer shall achieve 
successful test results for the periodic retesting at intervals 
established by the manufacturer of sufficient frequency to ensure that 
each packaging produced by the manufacturer is capable of passing the 
design qualification tests. Changes in retest frequency are subject to 
the approval of the Associate Administrator for Hazardous Materials 
Safety. For single or composite packagings, the periodic retests must be 
conducted at least once every 12 months. For combination packagings, the 
periodic retests must be conducted at least once every 24 months.
    (f) Test samples. The manufacturer shall conduct the design 
qualification and periodic tests prescribed in this subpart using random 
samples of packagings, in the numbers specified in the appropriate test 
section. In addition, the leakproofness test, when required, shall be 
performed on each

[[Page 895]]

packaging produced by the manufacturer, and each packaging prior to 
reuse under Sec. 173.28 of this subchapter, by the reconditioner.
    (g) Selective testing. The selective testing of packagings that 
differ only in minor respects from a tested type is permitted as 
described in this section. For air transport, packagings must comply 
with Sec. 173.27(c)(1) and (c)(2) of this subchapter.
    (1) Selective testing of combination packagings. Variation 1. 
Variations are permitted in inner packagings of a tested combination 
package, without further testing of the package, provided an equivalent 
level of performance is maintained, as follows:
    (i) Inner packagings of equivalent or smaller size may be used 
provided--
    (A) The inner packagings are of similar design to the tested inner 
packagings (i.e. shape--round, rectangular, etc.);
    (B) The material of construction of the inner packagings (glass, 
plastic, metal, etc.) offers resistance to impact and stacking forces 
equal to or greater than that of the originally tested inner packaging;
    (C) The inner packagings have the same or smaller openings and the 
closure is of similar design (e.g., screw cap, friction lid, etc.);
    (D) Sufficient additional cushioning material is used to take up 
void spaces and to prevent significant movement of the inner packagings;
    (E) Inner packagings are oriented within the outer packaging in the 
same manner as in the tested package; and,
    (F) The gross mass of the package does not exceed that originally 
tested.
    (ii) A lesser number of the tested inner packagings, or of the 
alternative types of inner packagings identified in paragraph (g)(1)(i) 
of this section, may be used provided sufficient cushioning is added to 
fill void space(s) and to prevent significant movement of the inner 
packagings.
    (2) Selective testing of combination packagings. Variation 2. 
Articles or inner packagings of any type, for solids or liquids, may be 
assembled and transported without testing in an outer packaging under 
the following conditions:
    (i) The outer packaging must have been successfully tested in 
accordance with Sec. 178.603 with fragile (e.g. glass) inner packagings 
containing liquids at the Packing Group I drop height;
    (ii) The total combined gross mass of inner packagings may not 
exceed one-half the gross mass of inner packagings used for the drop 
test;
    (iii) The thickness of cushioning material between inner packagings 
and between inner packagings and the outside of the packaging may not be 
reduced below the corresponding thickness in the originally tested 
packaging; and when a single inner packaging was used in the original 
test, the thickness of cushioning between inner packagings may not be 
less than the thickness of cushioning between the outside of the 
packaging and the inner packaging in the original test. When either 
fewer or smaller inner packagings are used (as compared to the inner 
packagings used in the drop test), sufficient additional cushioning 
material must be used to take up void spaces.
    (iv) The outer packaging must have successfully passed the stacking 
test set forth in Sec. 178.606 of this subpart when empty, i.e., without 
either inner packagings or cushioning materials. The total mass of 
identical packages must be based on the combined mass of inner 
packagings used for the drop test;
    (v) Inner packagings containing liquids must be completely 
surrounded with a sufficient quantity of absorbent material to absorb 
the entire liquid contents of the inner packagings;
    (vi) When the outer packaging is intended to contain inner 
packagings for liquids and is not leakproof, or is intended to contain 
inner packagings for solids and is not siftproof, a means of containing 
any liquid or solid contents in the event of leakage must be provided in 
the form of a leakproof liner, plastic bag, or other equally efficient 
means of containment. For packagings containing liquids, the absorbent 
material required in paragraph (g)(2)(v) of this section must be placed 
inside the means of containing liquid contents; and
    (vii) Packagings must be marked in accordance with Sec. 178.503 of 
this part as

[[Page 896]]

having been tested to Packing Group I performance for combination 
packagings. The marked maximum gross mass may not exceed the sum of the 
mass of the outer packaging plus one half the mass of the filled inner 
packagings of the tested combination packaging. In addition, the marking 
required by Sec. 178.503(a)(2) of this part must include the letter 
``V''.
    (3) Variation 3. Packagings other than combination packagings which 
are produced with reductions in external dimensions (i.e., length, width 
or diameter) of up to 25 percent of the dimensions of a tested packaging 
may be used without further testing provided an equivalent level of 
performance is maintained. The packagings must, in all other respects 
(including wall thicknesses), be identical to the tested design-type. 
The marked gross mass (when required) must be reduced in proportion to 
the reduction in volume.
    (4) Variation 4. Variations are permitted in outer packagings of a 
tested design-type combination packaging, without further testing, 
provided an equivalent level of performance is maintained, as follows:
    (i) Each external dimension (length, width and height) is less than 
or equal to the corresponding dimension of the tested design-type;
    (ii) The structural design of the tested outer packaging (i.e. 
methods of construction, materials of construction, strength 
characteristics of materials of construction, method of closure and 
material thicknesses) is maintained;
    (iii) The inner packagings are identical to the inner packagings 
used in the tested design type except that their size and mass may be 
less; and they are oriented within the outer packaging in the same 
manner as in the tested packaging;
    (iv) The same type or design of absorbent materials, cushioning 
materials and any other components necessary to contain and protect 
inner packagings, as used in the tested design type, are maintained. The 
thickness of cushioning material between inner packagings and between 
inner packagings and the outside of the packaging may not be less than 
the thicknesses in the tested design type packaging; and
    (v) Sufficient additional cushioning material is used to take up 
void spaces and to prevent significant movement of the inner packagings.

An outer packaging qualifying for use in transport in accordance with 
all of the above conditions may also be used without testing to 
transport inner packagings substituted for the originally tested inner 
packagings in accordance with the conditions set out in Variation 1 in 
paragraph (g)(1) of this section.
    (5) Variation 5. Single packagings (i.e., non-bulk packagings other 
than combination packagings), that differ from a tested design type only 
to the extent that the closure device or gasketing differs from that 
used in the originally tested design type, may be used without further 
testing, provided an equivalent level of performance is maintained, 
subject to the following conditions (the qualifying tests):
    (i) A packaging with the replacement closure devices or gasketing 
must successfully pass the drop test specified in Sec. 178.603 in the 
orientation which most severely tests the integrity of the closure or 
gasket;
    (ii) When intended to contain liquids, a packaging with the 
replacement closure devices or gasketing must successfully pass the 
leakproofness test specified in Sec. 178.604, the hydrostatic pressure 
test specified in Sec. 178.605, and the stacking test specified in 
Sec. 178.606.

Replacement closures and gasketings qualified under the above test 
requirements are authorized without additional testing for packagings 
described in paragraph (g)(3) of this section. Replacement closures and 
gasketings qualified under the above test requirements also are 
authorized without additional testing for different tested design types 
packagings of the same type as the originally tested packaging, provided 
the original design type tests are more severe or comparable to tests 
which would otherwise be conducted on the packaging with the replacement 
closures or gasketings. (For example: The packaging used in the 
qualifying tests has a lesser packaging wall thickness than the 
packaging with replacement closure devices or gasketing; the

[[Page 897]]

gross mass of the packaging used in the qualifying drop test equals or 
exceeds the mass for which the packaging with replacement closure 
devices or gasketing was tested; the packaging used in the qualifying 
drop test was dropped from the same or greater height than the height 
from which the packaging with replacement closure devices or gasketing 
was dropped in design type tests; and the specific gravity of the 
substance used in the qualifying drop test was the same or greater than 
the specific gravity of the liquid used in the design type tests of the 
packaging with replacement closure devices or gasketing.)
    (6) The provisions in Variations 1, 2, and 4 in paragraphs (g)(1), 
(2) and (4) of this section for combination packagings may be applied to 
packagings containing articles, where the provisions for inner 
packagings are applied analogously to the articles. In this case, inner 
packagings need not comply with Sec. 173.27(c)(1) and (c)(2) of this 
subchapter.
    (7) Approval of selective testing. In addition to the provisions of 
Sec. 178.601(g)(1) through (g)(6) of this subpart, the Associate 
Administrator for Hazardous Materials Safety may approve the selective 
testing of packagings that differ only in minor respects from a tested 
type.
    (8) For a steel drum with a capacity greater than 50 L (13 gallons) 
manufactured from low carbon, cold-rolled sheet steel meeting ASTM 
designations A366/A366M or A568/A568M, variations in elements other than 
the following design elements are considered minor and do not constitute 
a different drum design type, or ``different packaging'' as defined in 
paragraph (c) of this section for which design qualification testing and 
periodic retesting are required. Minor variations authorized without 
further testing include changes in the identity of the supplier of 
component material made to the same specifications, or the original 
manufacturer of a DOT specification or UN standard drum to be 
remanufactured. A change in any one or more of the following design 
elements constitutes a different drum design type:
    (i) The packaging type and category of the original drum and the 
remanufactured drum, i.e., 1A1 or 1A2;
    (ii) The style, (i.e., straight-sided or tapered);
    (iii) Except as provided in paragraph (g)(3) of this section, the 
rated (marked) capacity and outside dimensions;
    (iv) The physical state for which the packaging was originally 
approved (e.g., tested for solids or liquids);
    (v) An increase in the marked level of performance of the original 
drum (i.e., to a higher packing group, hydrostatic test pressure, or 
specific gravity to which the packaging has been tested);
    (vi) Type of side seam welding;
    (vii) Type of steel;
    (viii) An increase greater than 10% or any decrease in the steel 
thickness of the head, body, or bottom;
    (ix) End seam type, (e.g., triple or double seam);
    (x) A reduction in the number of rolling hoops which equal or exceed 
the diameter over the chimes;
    (xi) The location, type or size, and material of closures (other 
than the cover of UN 1A2 drums); and
    (xii) For UN 1A2 drums:
    (A) Gasket material (e.g., plastic), or properties affecting the 
performance of the gasket;
    (B) Configuration or dimensions of the gasket;
    (C) Closure ring style including bolt size, (e.g., square or round 
back, 0.625'' bolt); and
    (D) Closure ring thickness.
    (h) Approval of equivalent packagings. A packaging having 
specifications different from those in Secs. 178.504-178.523 of this 
part, or which is tested using methods or test intervals, other than 
those specified in subpart M of this part, may be used if approved by 
the Associate Administrator for Hazardous Materials Safety. Such 
packagings must be shown to be equally effective, and testing methods 
used must be equivalent.
    (i) Proof of compliance. Notwithstanding the periodic retest 
intervals specified in paragraph (e) of this section, the Associate 
Administrator for Hazardous Materials Safety may at any time require 
demonstration of compliance by

[[Page 898]]

a manufacturer, through testing in accordance with this subpart, that 
packagings meet the requirements of this subpart. As required by the 
Associate Administrator for Hazardous Materials Safety, the manufacturer 
shall either--
    (1) Conduct performance tests, or have tests conducted by an 
independent testing facility, in accordance with this subpart; or
    (2) Supply packagings, in quantities sufficient to conduct tests in 
accordance with this subpart, to the Associate Administrator for 
Hazardous Materials Safety or a designated representative of the 
Associate Administrator.
    (j) Coatings. If an inner treatment or coating of a packaging is 
required for safety reasons, the manufacturer shall design the packaging 
so that the treatment or coating retains its protective properties even 
after withstanding the tests prescribed by this subpart.
    (k) Number of test samples. Provided the validity of the test 
results is not affected and with the approval of the Associate 
Administrator for Hazardous Materials Safety, several tests may be 
performed on one sample.
    (l) Record retention. Following each design qualification test and 
each periodic retest on a packaging, a test report must be prepared. The 
test report must be maintained at each location where the packaging is 
manufactured and each location where the design qualification tests are 
conducted, for as long as the packaging is produced and for at least two 
years thereafter, and at each location where the periodic retests are 
conducted until such tests are successfully performed again and a new 
test report produced. In addition, a copy of the test report must be 
maintained by a person certifying compliance with this part. The test 
report must be made available to a user of a packaging or a 
representative of the Department upon request. The test report, at a 
minimum, must contain the following information:
    (1) Name and address of test facility;
    (2) Name and address of applicant (where appropriate);
    (3) A unique test report identification;
    (4) Date of the test report;
    (5) Manufacturer of the packaging;
    (6) Description of the packaging design type (e.g. dimensions, 
materials, closures, thickness, etc.), including methods of manufacture 
(e.g. blow molding) and which may include drawing(s) and/or 
photograph(s);
    (7) Maximum capacity;
    (8) Characteristics of test contents, e.g. viscosity and relative 
density for liquids and particle size for solids;
    (9) Test descriptions and results; and
    (10) Signed with the name and title of signatory.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended at 56 FR 66285, 
Dec. 20, 1991; 57 FR 45465, Oct. 1, 1992; Amdt. 178-102, 59 FR 28494, 
June 2, 1994; Amdt. 178-106, 59 FR 67521, 67522, Dec. 29, 1994; Amdt. 
178-117, 61 FR 50628, Sept. 26, 1996]



Sec. 178.602  Preparation of packagings and packages for testing.

    (a) Except as otherwise provided in this subchapter, each packaging 
and package must be closed in preparation for testing and tests must be 
carried out in the same manner as if prepared for transportation, 
including inner packagings in the case of combination packagings.
    (b) For the drop and stacking test, inner and single-unit 
receptacles must be filled to not less than 95 percent of maximum 
capacity (see Sec. 171.8 of this subchapter) in the case of solids and 
not less than 98 percent of maximum capacity in the case of liquids. The 
material to be transported in the packagings may be replaced by a non-
hazardous material, except for chemical compatibility testing or where 
this would invalidate the results of the tests.
    (c) If the material to be transported is replaced for test purposes 
by a non-hazardous material, the material used must be of the same or 
higher specific gravity as the material to be carried, and its other 
physical properties (grain, size, viscosity) which might influence the 
results of the required tests must correspond as closely as possible to 
those of the hazardous material to be transported. Water may also be 
used for the liquid drop test under the conditions specified in 
Sec. 178.603(e) of this subpart. It is permissible to use additives, 
such as bags of lead shot, to achieve the requisite total package

[[Page 899]]

mass, so long as they are placed so that the test results are not 
affected.
    (d) Paper or fiberboard packagings must be conditioned for at least 
24 hours immediately prior to testing in an atmosphere maintained--
    (1) At 50 percent 2 percent relative humidity, and at a 
temperature of 23  deg.C2  deg.C (73  deg.F4 
deg.F). Average values should fall within these limits. Short-term 
fluctuations and measurement limitations may cause individual 
measurements to vary by up to  5 percent relative humidity 
without significant impairment of test reproducibility;
    (2) At 65 percent 2 percent relative humidity, and at a 
temperature of 20  deg.C2  deg.C (68  deg.F4 
deg.F), or 27  deg.C2  deg.C (81  deg.F4 
deg.F). Average values should fall within these limits. Short-term 
fluctuations and measurement limitations may cause individual 
measurements to vary by up to  5 percent relative humidity 
without significant impairment of test reproducibility; or
    (3) For testing at periodic intervals only (i.e., other than initial 
design qualification testing), at ambient conditions.
    (e) Except as otherwise provided, each packaging must be closed in 
preparation for testing in the same manner as if prepared for actual 
shipment. All closures must be installed using proper techniques and 
torques.
    (f) Bung-type barrels made of natural wood must be left filled with 
water for at least 24 hours before the tests.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended at 56 FR 66286, 
Dec. 20, 1991; Amdt. 178-106, 59 FR 67522, Dec. 29, 1994]



Sec. 178.603  Drop test.

    (a) General. The drop test must be conducted for the qualification 
of all packaging design types and performed periodically as specified in 
Sec. 178.601(e). For other than flat drops, the center of gravity of the 
test packaging must be vertically over the point of impact. Where more 
than one orientation is possible for a given drop test, the orientation 
most likely to result in failure of the packaging must be used. The 
number of drops required and the packages' orientations are as follows:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                Packaging                     No. of tests (samples)           Drop orientation of samples      
----------------------------------------------------------------------------------------------------------------
Steel drums, Aluminum drums, Metal drums   Six--(three for each drop)..  First drop (using three samples): The  
 (other than steel or aluminum), Steel                                    package must strike the target        
 Jerricans, Plywood drums, Wooden                                         diagonally on the chime or, if the    
 barrels, Fiber drums, Plastic drums and                                  packaging has no chime, on a          
 Jerricans, Composite packagings which                                    circumferential seam or an edge.      
 are in the shape of a drum.                                              Second drop (using the other three    
                                                                          samples): The package must strike the 
                                                                          target on the weakest part not tested 
                                                                          by the first drop, for example a      
                                                                          closure or, for some cylindrical      
                                                                          drums, the welded longitudinal seam of
                                                                          the drum body.                        
Boxes of natural wood, Plywood boxes,      Five--(one for each drop)...  First drop: Flat on the bottom (using  
 Reconstituted wood boxes, Fiberboard                                     the first sample). Second drop: Flat  
 boxes, Plastic boxes, Steel or aluminum                                  on the top (using the second sample). 
 boxes, Composite packagings which are in                                 Third drop: Flat on the long side     
 the shape of a box.                                                      (using the third sample). Fourth drop:
                                                                          Flat on the short side (using the     
                                                                          fourth sample). Fifth drop: On a      
                                                                          corner (using the fifth sample).      
Bags--single-ply with a side seam........  Three--(three drops per bag)  First drop: Flat on a wide face (using 
                                                                          all three samples). Second drop: Flat 
                                                                          on a narrow face (using all three     
                                                                          samples). Third drop: On an end of the
                                                                          bag (using all three samples).        
Bags--single-ply without a side seam, or   Three--(two drops per bag)..  First drop: Flat on a wide face (using 
 multi-ply.                                                               all three samples). Second drop: On an
                                                                          end of the bag (using all three       
                                                                          samples).                             
----------------------------------------------------------------------------------------------------------------

    (b) Exceptions. For testing of single or composite packagings 
constructed of stainless steel, nickel, or monel at periodic intervals 
only (i.e., other than design qualification testing), the drop test may 
be conducted with two samples, one sample each for the two drop 
orientations. These samples may have been previously used for the 
hydrostatic pressure or stacking test. Exceptions for the number of 
steel and aluminum packaging samples used for conducting the drop test 
are subject to the approval of the Associate Administrator for Hazardous 
Materials Safety.

[[Page 900]]

    (c) Special preparation of test samples for the drop test. Testing 
of plastic drums, plastic jerricans, plastic boxes other than expanded 
polystyrene boxes, composite packagings (plastic material), and 
combination packagings with plastic inner packagings other than plastic 
bags intended to contain solids or articles must be carried out when the 
temperature of the test sample and its contents has been reduced to -18 
deg.C (0  deg.F) or lower. Test liquids shall be kept in the liquid 
state, if necessary, by the addition of anti-freeze. Test samples 
prepared in this way are not required to be conditioned in accordance 
with Sec. 178.602(d).
    (d) Target. The target must be a rigid, non-resilient, flat and 
horizontal surface.
    (e) Drop height. Drop heights, measured as the vertical distance 
from the target to the lowest point on the package, must be determined 
as follows:
    (1) For solids and liquids, if the test is performed with the solid 
or liquid to be transported or with a non-hazardous material having 
essentially the same physical characteristic, the drop height must be 
determined according to packing group, as follows:
    (i) Packing Group I: 1.8 m (5.9 feet).
    (ii) Packing Group II: 1.2 m (3.9 feet).
    (iii) Packing Group III: 0.8 m (2.6 feet).
    (2) For liquids, if the test is performed with water--
    (i) Where the materials to be carried have a specific gravity not 
exceeding 1.2, drop height must be determined according to packing 
group, as follows:
    (A) Packing Group I: 1.8 m (5.9 feet).
    (B) Packing Group II: 1.2 m (3.9 feet).
    (C) Packing Group III: 0.8 m (2.6 feet).
    (ii) Where the materials to be transported have a specific gravity 
exceeding 1.2, the drop height must be calculated on the basis of the 
specific gravity (SG) of the material to be carried, rounded up to the 
first decimal, as follows:
    (A) Packing Group I: SG X 1.5 m (4.9 feet).
    (B) Packing Group II: SG X 1.0 m (3.3 feet).
    (C) Packing Group III: SG X 0.67 m (2.2 feet).
    (f) Criteria for passing the test. A package is considered to 
successfully pass the drop tests if for each sample tested--
    (1) For packagings containing liquid, each packaging does not leak 
when equilibrium has been reached between the internal and external 
pressures, except for inner packagings of combination packagings when it 
is not necessary that the pressures be equalized;
    (2) For removable head drums for solids, the entire contents are 
retained by an inner packaging (e.g., a plastic bag) even if the closure 
on the top head of the drum is no longer sift-proof;
    (3) For a bag, neither the outermost ply nor an outer packaging 
exhibits any damage likely to adversely affect safety during transport;
    (4) For a composite or combination packaging, there is no damage to 
the outer packaging likely to adversely affect safety during transport, 
and there is no leakage of the filling substance from the inner 
packaging;
    (5) For a drum, jerrican or bag, any discharge from a closure is 
slight and ceases immediately after impact with no further leakage; and
    (6) No rupture is permitted in packagings for materials in Class 1 
which would permit spillage of loose explosive substances or articles 
from the outer packaging.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended at 56 FR 66286, 
Dec. 20, 1991; 57 FR 45465, Oct. 1, 1992; Amdt. 178-99, 58 FR 51534, 
Oct. 1, 1993; Amdt. 178-106, 59 FR 67522, Dec. 29, 1994]



Sec. 178.604  Leakproofness test.

    (a) General. The leakproofness test must be performed with 
compressed air or other suitable gases on all packagings intended to 
contain liquids, except that:
    (1) The inner receptacle of a composite packaging may be tested 
without the outer packaging provided the test results are not affected; 
and
    (2) This test is not required for inner packagings of combination 
packagings.
    (b) Number of packagings to be tested--
    (1) Production testing. All packagings subject to the provisions of 
this section must be tested and must pass the leakproofness test:
    (i) Before they are first used in transportation; and

[[Page 901]]

    (ii) Prior to reuse, when authorized for reuse by Sec. 173.28 of 
this subchapter.
    (2) Design qualification and periodic testing. Three samples of each 
different packaging must be tested and must pass the leakproofness test. 
Exceptions for the number of samples used in conducting the 
leakproofness test are subject to the approval of the Associate 
Administrator for Hazardous Materials Safety.
    (c) Special preparation--(1) For design qualification and periodic 
testing, packagings must be tested with closures in place. For 
production testing, packagings need not have their closures in place. 
Removable heads need not be installed during production testing.
    (2) For testing with closures in place, vented closures must either 
be replaced by similar non-vented closures or the vent must be sealed.
    (d) Test method. The packaging must be restrained under water while 
an internal air pressure is applied; the method of restraint must not 
affect the results of the test. The test must be conducted, for other 
than production testing, for a minimum time of five minutes. Other 
methods, at least equally effective, may be used in accordance with 
appendix B of this Part.
    (e) Pressure applied. An internal air pressure (gauge) must be 
applied to the packaging as indicated for the following packing groups:
    (1) Packing Group I: Not less than 30 kPa (4 psi).
    (2) Packing Group II: Not less than 20 kPa (3 psi).
    (3) Packing Group III: Not less than 20 kPa (3 psi).
    (f) Criteria for passing the test. A packaging passes the test if 
there is no leakage of air from the packaging.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended at 56 FR 66286, 
Dec. 20, 1991; Amdt. 178-106, 59 FR 67522, Dec. 29, 1994]



Sec. 178.605  Hydrostatic pressure test.

    (a) General. The hydrostatic pressure test must be conducted for the 
qualification of all metal, plastic, and composite packaging design 
types intended to contain liquids and be performed periodically as 
specified in Sec. 178.601(e). This test is not required for inner 
packagings of combination packagings. For internal pressure requirements 
for inner packagings of combination packagings intended for 
transportation by aircraft, see Sec. 173.27(c) of this subchapter.
    (b) Number of test samples. Three test samples are required for each 
different packaging. For packagings constructed of stainless steel, 
monel, or nickel, only one sample is required for periodic retesting of 
packagings. Exceptions for the number of aluminum and steel sample 
packagings used in conducting the hydrostatic pressure test are subject 
to the approval of the Associate Administrator for Hazardous Materials 
Safety.
    (c) Special preparation of receptacles for testings. Vented closures 
must either be replaced by similar non-vented closures or the vent must 
be sealed.
    (d) Test method and pressure to be applied. Metal packagings and 
composite packagings other than plastic (e.g., glass, porcelain or 
stoneware), including their closures, must be subjected to the test 
pressure for 5 minutes. Plastic packagings and composite packagings 
(plastic material), including their closures, must be subjected to the 
test pressure for 30 minutes. This pressure is the one to be marked as 
required in Sec. 178.503(a)(5) of this part. The receptacles must be 
supported in a manner that does not invalidate the test. The test 
pressure must be applied continuously and evenly, and it must be kept 
constant throughout the test period. The hydraulic pressure (gauge) 
applied, taken at the top of the receptacle, and determined by any one 
of the following methods must be:
    (1) Not less than the total gauge pressure measured in the packaging 
(i.e., the vapor pressure of the filling material and the partial 
pressure of the air or other inert gas minus 100 kPa (15 psi)) at 55 
deg.C (131  deg.F), multiplied by a safety factor of 1.5. This total 
gauge pressure must be determined on the basis of a maximum degree of 
filling in accordance with Sec. 173.24a(b)(3) of this subchapter and a 
filling temperature of 15  deg.C (59  deg.F);
    (2) Not less than 1.75 times the vapor pressure at 50  deg.C (122 
deg.F) of the material to be transported minus 100 kPa (15 psi) but with 
a minimum test pressure of 100 kPa (15 psi); or

[[Page 902]]

    (3) Not less than 1.5 times the vapor pressure at 55  deg.C (l3l 
deg.F) of the material to be transported minus 100 kPa (15 psi), but 
with a minimum test pressure of 100 kPa (15 psi).

Packagings intended to contain hazardous materials of Packing Group I 
must be tested to a minimum test pressure of 250 kPa (36 psi).
    (e) Criteria for passing the test. A package passes the hydrostatic 
test if, for each test sample, there is no leakage of liquid from the 
package.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended at 56 FR 66286, 
Dec. 20, 1991; Amdt. 178-99, 58 FR 51534, Oct. 1, 1993; Amdt. 178-102, 
59 FR 28494, June 2, 1994]



Sec. 178.606  Stacking test.

    (a) General. All packaging design types other than bags must be 
subjected to a stacking test.
    (b) Number of test samples. Three test samples are required for each 
different packaging. For periodic retesting of packagings constructed of 
stainless steel, monel, or nickel, only one test sample is required. 
Exceptions for the number of aluminum and steel sample packagings used 
in conducting the stacking test are subject to the approval of the 
Associate Administrator for Hazardous Materials Safety. Notwithstanding 
the provisions of Sec. 178.602(a) of this subpart, combination 
packagings may be subjected to the stacking test without their inner 
packagings, except where this would invalidate the results of the test.
    (c) Test method--(1) Design qualification testing. The test sample 
must be subjected to a force applied to the top surface of the test 
sample equivalent to the total weight of identical packages which might 
be stacked on it during transport; where the contents of the test sample 
are non-hazardous liquids with specific gravities different from that of 
the liquid to be transported, the force must be calculated based on the 
specific gravity that will be marked on the packaging. The minimum 
height of the stack, including the test sample, must be 3.0 m (10 feet). 
The duration of the test must be 24 hours, except that plastic drums, 
jerricans, and composite packaging 6HH, intended for liquids, shall be 
subjected to the stacking test for a period of 28 days at a temperature 
of not less than 40  deg.C (104  deg.F). Alternative test methods which 
yield equivalent results may be used if approved by the Associate 
Administrator for Hazardous Materials Safety. In guided load tests, 
stacking stability must be assessed after completion of the test by 
placing two filled packagings of the same type on the test sample. The 
stacked packages must maintain their position for one hour. Plastic 
packagings must be cooled to ambient temperature before this stacking 
stability assessment.
    (2) Periodic retesting. The test sample must be tested in accordance 
with:
    (i) Section 178.606(c)(1) of this subpart; or
    (ii) The packaging may be tested using a dynamic compression testing 
machine. The test must be conducted at room temperature on an empty, 
unsealed packaging. The test sample must be centered on the bottom 
platen of the testing machine. The top platen must be lowered until it 
comes in contact with the test sample. Compression must be applied end 
to end. The speed of the compression tester must be one-half inch plus 
or minus one-fourth inch per minute. An initial preload of 50 pounds 
must be applied to ensure a definite contact between the test sample and 
the platens. The distance between the platens at this time must be 
recorded as zero deformation. The force A to then be applied must be 
calculated using the formula:

Liquids: A=(n-1) [w+ (s  x  v  x  8.3  x  .98)]  x  1.5; Solids: A= (n-
          1) [w+ (s  x  v  x  8.3  x  .95)]  x  1.5
Where:
A=applied load in pounds.
n=minimum number of containers that, when stacked, reach a height of 3 
          m.
s=specific gravity of lading.
w=maximum weight of one empty container in pounds.
v=actual capacity of container (rated capacity + outage) in gallons.
And:
8.3 corresponds to the weight in pounds of 1.0 gallon of water.
1.5 is a compensation factor that converts the static load of the 
          stacking test into a load suitable for dynamic compression 
          testing.

    (d) Criteria for passing the test. No test sample may leak. In 
composite packagings or combination packagings,

[[Page 903]]

there must be no leakage of the filling substance from the inner 
receptacle, or inner packaging. No test sample may show any 
deterioration which could adversely affect transportation safety or any 
distortion likely to reduce its strength, cause instability in stacks of 
packages, or cause damage to inner packagings likely to reduce safety in 
transportation. For the dynamic compression test, a container passes the 
test if, after application of the required load, there is no buckling of 
the sidewalls sufficient to cause damage to its expected contents; in no 
case may the maximum deflection exceed one inch.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended at 56 FR 66286, 
Dec. 20, 1991; 57 FR 45465, Oct. 1, 1992; Amdt. 178-102, 59 FR 28494, 
June 2, 1994; Amdt. 178-106, 59 FR 67522, Dec. 29, 1994]



Sec. 178.607  Cooperage test for bung-type wooden barrels.

    (a) Number of samples. One barrel is required for each different 
packaging.
    (b) Method of testing. Remove all hoops above the bilge of an empty 
barrel at least two days old.
    (c) Criteria for passing the test. A packaging passes the cooperage 
test only if the diameter of the cross-section of the upper part of the 
barrel does not increase by more than 10 percent.



Sec. 178.608  Vibration standard.

    (a) Each packaging must be capable of withstanding, without rupture 
or leakage, the vibration test procedure outlined in this section.
    (b) Test method. (1) Three sample packagings, selected at random, 
must be filled and closed as for shipment.
    (2) The three samples must be placed on a vibrating platform that 
has a vertical or rotary double-amplitude (peak-to-peak displacement) of 
one inch. The packages should be constrained horizontally to prevent 
them from falling off the platform, but must be left free to move 
vertically, bounce and rotate.
    (3) The test must be performed for one hour at a frequency that 
causes the package to be raised from the vibrating platform to such a 
degree that a piece of material of approximately 1.6 mm (0.063 inch) 
thickness (such as steel strapping or paperboard) can be passed between 
the bottom of any package and the platform.
    (4) Immediately following the period of vibration, each package must 
be removed from the platform, turned on its side and observed for any 
evidence of leakage.
    (5) Other methods, at least equally effective, may be used, if 
approved by the Associate Administrator for Hazardous Materials Safety.
    (c) Criteria for passing the test. A packaging passes the vibration 
test if there is no rupture or leakage from any of the packages. No test 
sample should show any deterioration which could adversely affect 
transportation safety or any distortion liable to reduce packaging 
strength.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended at 56 FR 66286, 
Dec. 20, 1991]



Sec. 178.609  Test requirements for packagings for infectious substances (etiologic agents).

    (a) Samples of each packaging must be prepared for testing as 
described in paragraph (b) of this section and then subjected to the 
tests in paragraphs (d) through (i) of this section.
    (b) Samples of each packaging must be prepared as for transport 
except that a liquid or solid infectious substance should be replaced by 
water or, where conditioning at -18  deg.C (0  deg.F) is specified, by 
water/antifreeze. Each primary receptacle must be filled to 98 percent 
capacity. Packagings for live animals should be tested with the live 
animal being replaced by an appropriate dummy of similar mass.
    (c) Packagings prepared as for transport must be subjected to the 
tests in Table I of this paragraph, which, for test purposes, 
categorizes packagings according to their material characteristics. For 
outer packagings, the headings in Table I relate to fiberboard or 
similar materials whose performance may be rapidly affected by moisture; 
plastics, other than expanded plastics or film, which may embrittle at 
low temperature; and other materials such as metal whose performance is 
not significantly affected by moisture or temperature. Inner packagings 
may be of plastics, other than expanded plastics or film. Where a 
primary receptacle and a secondary packaging of an inner

[[Page 904]]

packaging are made of different materials, the material of the primary 
receptacle determines the appropriate test.

                                             Table I--Tests Required                                            
----------------------------------------------------------------------------------------------------------------
                             Material of                                            Tests required              
----------------------------------------------------------------------------------------------------------------
             Outer packaging                    Inner packaging             Refer to para. (d)                  
----------------------------------------------------------------------------------------------------   Refer to 
 Fiberboard     Plastics        Other       Plastics        Other      (d)   (e)   (f)      (g)       para. (h) 
----------------------------------------------------------------------------------------------------------------
X                                         X                                 X     X     When dry     X          
                                                                                         ice is                 
                                                                                         used                   
X                                                       X                   X                        X          
              X                           X                                       X                  X          
              X                                         X                         X                  X          
                            X             X                                       X                  X          
                            X                           X             X                              X          
----------------------------------------------------------------------------------------------------------------

    (d) Samples must be subjected to free-fall drops onto a rigid, 
nonresilient, flat, horizontal surface from a height of 9 m (30 feet).
    The drops must be performed as follows:
    (1) Where the samples are in the shape of a box, five must be 
dropped in sequence:
    (i) Flat on the bottom;
    (ii) Flat on the top;
    (iii) Flat on the long side;
    (iv) Flat on the short side; and
    (v) On a corner.
    (2) Where the samples are in the shape of a drum, three must be 
dropped in sequence:
    (i) Diagonally on the top chime, with the center of gravity directly 
above the point of impact;
    (ii) Diagonally on the base chime; and
    (iii) Flat on the side.
    (3) While the sample should be released in the required orientation, 
it is accepted that for aerodynamic reasons the impact may not take 
place in that orientation.
    (4) Following the appropriate drop sequence, there must be no 
leakage from the primary receptacle(s) which should remain protected by 
absorbent material in the secondary packaging.
    (e) The sample must be fully immersed in water for a period of at 
least 5 minutes and then allowed to drain for not more than 30 minutes 
at 23  deg.C (73  deg.F) and 50  2 percent relative 
humidity. It should then be subjected to the test described in paragraph 
(d) of this section.
    (f) The sample must be conditioned in an atmosphere of -18  deg.C (0 
 deg.F) or less for a period of at least 24 hours and within 15 minutes 
of removal from that atmosphere be subjected to the test described in 
paragraph (d) of this section. Where the sample contains dry ice, the 
conditioning period may be reduced to 4 hours.
    (g) Where packaging is intended to contain dry ice, a test 
additional to that specified in paragraph (d) or (e) or (f) of this 
section must be carried out. One sample must be stored so that all the 
dry ice dissipates and then be subjected to the test described in 
paragraph (d) of this section.
    (h) Packagings with a gross mass of 7 kg (15 pounds) or less should 
be subjected to the tests described in paragraph (h)(1) of this section 
and packagings with a gross mass exceeding 7 kg (15 pounds) to the tests 
in paragraph (h)(2) of this section.
    (1) Samples must be placed on a level hard surface. A cylindrical 
steel rod with a mass of at least 7 kg (15 pounds), a diameter not 
exceeding 38 mm (1.5 inches) and the impact end edges a radius not 
exceeding 6 mm (0.2 inches), must be dropped in a vertical free fall 
from a height of 1 m (3 feet), measured from the impact end of the 
impact surface of the sample. One sample must be placed on its base. A 
second sample must be placed in an orientation perpendicular to that 
used for the first. In each instance the steel rod must be aimed to 
impact the primary receptacle. Following each impact, penetration of the 
secondary packaging is acceptable, provided that there is no leakage 
from the primary receptacle(s).

[[Page 905]]

    (2) Samples must be dropped on to the end of a cylindrical steel 
rod. The rod must be set vertically in a level hard surface. It must 
have a diameter of 38 mm (1.5 inches) and the edges of the upper end a 
radius not exceeding 6 mm (0.2 inches). The rod must protrude from the 
surface a distance at least equal to that between the primary 
receptacle(s) and the outer surface of the outer packaging with a 
minimum of 200 mm (7.9 inches). One sample must be dropped in a vertical 
free fall from a height of 1 m (3 feet), measured from the top of the 
steel rod. A second sample must be dropped from the same height in an 
orientation perpendicular to that used for the first. In each instance 
the packaging should be so orientated that the steel rod must be aimed 
to impact the primary receptacle(s). Following each impact, penetration 
of the secondary packaging is acceptable, provided that there is not 
leakage from the primary receptacle(s).
    (i) Packagings subject to this section are not subject to 
Sec. 178.503 or any other requirements of this subpart, except 
Sec. 178.608.
[Amdt. 178-97, 55 FR 52723, Dec. 21, 1990, as amended by Amdt. 178-111, 
60 FR 48787, Sept. 20, 1995]



  Subpart N--Intermediate Bulk Container Performance-Oriented Standards

    Source:  Amdt. 178-103, 59 FR 38068, July 26, 1994, unless otherwise 
noted.



Sec. 178.700  Purpose, scope and definitions.

    (a) This subpart prescribes requirements applying to intermediate 
bulk containers intended for the transportation of hazardous materials. 
Standards for these packagings are based on the UN Recommendations.
    (b) Terms used in this subpart are defined in Sec. 171.8 of this 
subchapter and in paragraph (c) of this section.
    (c) The following definitions pertain to the intermediate bulk 
container standards in this subpart.
    (1) Body means the receptacle proper (including openings and their 
closures, but not including service equipment), that has a volumetric 
capacity of not more than three cubic meters (3,000 liters, 793 gallons, 
or 106 cubic feet) and not less than 0.45 cubic meters (450 liters, 119 
gallons, or 15.9 cubic feet) or a maximum net mass of not less than 400 
kilograms (882) pounds.
    (2) Service equipment means filling and discharge, pressure relief, 
safety, heating and heat-insulating devices and measuring instruments.
    (3) Structural equipment means the reinforcing, fastening, handling, 
protective or stabilizing members of the body or stacking load bearing 
structural members (such as metal cages).
    (4) Maximum permissible gross mass means the mass of the body, its 
service equipment, structural equipment and the maximum net mass (see 
Sec. 171.8 of this subchapter).
[Amdt. 178-103, 59 FR 38068, July 26, 1994, as amended by Amdt. 178-108, 
60 FR 40038, Aug. 4, 1995]



Sec. 178.702  Intermediate bulk container identification codes.

    (a) Intermediate bulk container code designations consist of: two 
numerals specified in paragraph (a)(1) of this section; followed by the 
capital letter(s) specified in paragraph (a)(2) of this section; 
followed, when specified in an individual section, by a numeral 
indicating the category of intermediate bulk container.
    (1) Intermediate bulk container code number designations are as 
follows:

                                                                        
------------------------------------------------------------------------
                                    For solids, discharged              
                                  --------------------------            
                                                   Under                
               Type                             pressure of  For liquids
                                    by gravity   more than              
                                                   10 kPa               
                                                 (1.45 psi)             
------------------------------------------------------------------------
Rigid............................           11           21           31
Flexible.........................           13                          
------------------------------------------------------------------------

    (2) Intermediate bulk container code letter designations are as 
follows:

    ``A'' means steel (all types and surface treatments).
    ``B'' means aluminum.
    ``C'' means natural wood.
    ``D'' means plywood.
    ``F'' means reconstituted wood.
    ``G'' means fiberboard.
    ``H'' means plastic.
    ``L'' means textile.
    ``M'' means paper, multiwall.

[[Page 906]]

    ``N'' means metal (other than steel or aluminum).

    (b) For composite intermediate bulk containers, two capital letters 
are used in sequence following the numeral indicating intermediate bulk 
container design type. The first letter indicates the material of the 
intermediate bulk container inner receptacle. The second letter 
indicates the material of the outer intermediate bulk container. For 
example, 31HA1 is a composite intermediate bulk container with a plastic 
inner receptacle and a steel outer packaging.



Sec. 178.703  Marking of intermediate bulk containers.

    (a) The manufacturer shall:
    (1) Mark every intermediate bulk container in a durable and clearly 
visible manner (applied in a single line or in multiple lines provided 
the correct sequence is followed) with the following information in the 
sequence presented:
    (i) The United Nations symbol as illustrated in Sec. 178.503(d)(1). 
For metal intermediate bulk containers on which the marking is stamped 
or embossed, the capital letters `UN' may be applied instead of the 
symbol.
    (ii) The code number designating intermediate bulk container design 
type according to Sec. 178.702(a) (1) and (2).
    (iii) A capital letter identifying the performance standard under 
which the design type has been successfully tested, as follows:
    (A) X--for intermediate bulk containers meeting Packing Group I, II 
and III tests;
    (B) Y--for intermediate bulk containers meeting Packing Group II and 
III tests; and
    (C) Z--for intermediate bulk containers meeting only Packing Group 
III tests.
    (iv) The month (designated numerically) and year (last two digits) 
of manufacture.
    (v) The country authorizing the allocation of the mark. The letters 
`USA' indicate that the intermediate bulk container is manufactured and 
marked in the United States in compliance with the provisions of this 
subchapter.
    (vi) The name and address or symbol of the manufacturer or the 
approval agency certifying compliance with subparts N and O of this 
part. Symbols, if used, must be registered with the Associate 
Administrator for Hazardous Materials Safety.
    (vii) The stacking test load in kilograms (kg). For intermediate 
bulk containers not designed for stacking, the figure ``0'' must be 
shown.
    (viii) The maximum permissible gross mass or, for flexible 
intermediate bulk containers, the maximum net mass, in kg.
    (2) The following are examples of symbols and required markings:
    (i) For a metal intermediate bulk container containing solids 
discharged by gravity made from steel:
[GRAPHIC] [TIFF OMITTED] TR26JY94.000

    (ii) For a flexible intermediate bulk container containing solids 
discharged by gravity and made from woven plastic with a liner:

[[Page 907]]

[GRAPHIC] [TIFF OMITTED] TR26JY94.001

    (iii) For a rigid plastic intermediate bulk container containing 
liquids, made from plastic with structural equipment withstanding the 
stack load and with a manufacturer's symbol in place of the 
manufacturer's name and address:
[GRAPHIC] [TIFF OMITTED] TR26JY94.002

    (iv) For a composite intermediate bulk container containing liquids, 
with a rigid plastic inner receptacle and an outer steel body and with 
the symbol of a DOT approved third-party test laboratory:
[GRAPHIC] [TIFF OMITTED] TR26JY94.003

    (b) Additional marking. In addition to markings required in 
paragraph (a) of this section, each intermediate bulk container must be 
marked as follows in a place near the markings required in paragraph (a) 
of this section that is readily accessible for inspection. Where units 
of measure are used, the metric unit indicated (e.g., 450 liters) must 
also appear.
    (1) For each rigid plastic and composite intermediate bulk 
container, the following markings must be included:
    (i) Rated capacity in liters of water at 20  deg.C (68  deg.F);
    (ii) Tare mass in kilograms;
    (iii) Gauge test pressure in kPa;
    (iv) Date of last leakproofness test, if applicable (month and 
year); and
    (v) Date of last inspection (month and year).
    (2) For each metal intermediate bulk container, the following 
markings must be included on a metal corrosion-resistant plate:
    (i) Rated capacity in liters of water at 20  deg.C (68  deg.F);
    (ii) Tare mass in kilograms;
    (iii) Date of last leakproofness test, if applicable (month and 
year);
    (iv) Date of last inspection (month and year);
    (v) Maximum loading/discharge pressure, in kPa, if applicable;
    (vi) Body material and its minimum thickness in mm; and
    (vii) Serial number assigned by the manufacturer.
    (3) Markings required by paragraph (b)(1) or (b)(2) of this section 
may be preceded by the narrative description of the marking, e.g. ``Tare 
Mass: * * *''

[[Page 908]]

where the ``* * *'' are replaced with the tare mass in kilograms of the 
intermediate bulk container.
    (4) For each fiberboard and wooden intermediate bulk container, the 
tare mass in kg must be shown.
    (5) Each flexible intermediate bulk container may be marked with a 
pictogram displaying recommended lifting methods.
    (6) For each composite intermediate bulk container, the inner 
receptacle must be marked with at least the following information:
    (i) The code number designating the intermediate bulk container 
design type, the name and address or symbol of the manufacturer, the 
date of manufacture and the country authorizing the allocation of the 
mark as specified in paragraph (a) of this section;
    (ii) Where the outer casing of a composite intermediate bulk 
container can be dismantled, each of the detachable parts must be marked 
with the month and year of manufacture and the name or symbol of the 
manufacturer.
[Amdt. 178-103, 59 FR 38068, July 26, 1994, as amended by Amdt. 178-119, 
62 FR 24743, May 6, 1997]



Sec. 178.704  General intermediate bulk container standards.

    (a) Each intermediate bulk container must be resistant to, or 
protected from, deterioration due to exposure to the external 
environment. Intermediate bulk containers intended for solid hazardous 
materials must be sift-proof and water-resistant.
    (b) All service equipment must be so positioned or protected as to 
minimize potential loss of contents resulting from damage during 
intermediate bulk container handling and transportation.
    (c) Each intermediate bulk container, including attachments, and 
service and structural equipment, must be designed to withstand, without 
loss of hazardous materials, the internal pressure of the contents and 
the stresses of normal handling and transport. An intermediate bulk 
container intended for stacking must be designed for stacking. Any 
lifting or securing features of an intermediate bulk container must be 
of sufficient strength to withstand the normal conditions of handling 
and transportation without gross distortion or failure and must be 
positioned so as to cause no undue stress in any part of the 
intermediate bulk container.
    (d) An intermediate bulk container consisting of a packaging within 
a framework must be so constructed that:
    (1) The body is not damaged by the framework;
    (2) The body is retained within the framework at all times; and
    (3) The service and structural equipment are fixed in such a way 
that they cannot be damaged if the connections between body and frame 
allow relative expansion or movement.
    (e) Bottom discharge valves must be secured in the closed position 
and the discharge system suitably protected from damage. Valves having 
lever closures must be secured against accidental opening. The open or 
closed position of each valve must be readily apparent. For each 
intermediate bulk container containing a liquid, a secondary means of 
sealing the discharge aperture must also be provided, e.g., by a blank 
flange or equivalent device.
    (f) Intermediate bulk container design types must be constructed in 
such a way as to be bottom-lifted or top-lifted as specified in 
Secs. 178.811 and 178.812.



Sec. 178.705  Standards for metal intermediate bulk containers.

    (a) The provisions in this section apply to metal intermediate bulk 
containers intended to contain liquids and solids. Metal intermediate 
bulk container types are designated:
    (1) 11A, 11B, 11N for solids that are loaded or discharged by 
gravity.
    (2) 21A, 21B, 21N for solids that are loaded or discharged at a 
gauge pressure greater than 10 kPa (1.45 psig).
    (3) 31A, 31B, 31N for liquids or solids.
    (b) Definitions for metal intermediate bulk containers:
    (1) Metal intermediate bulk container means an intermediate bulk 
container with a metal body, together with appropriate service and 
structural equipment.
    (2) Protected means providing the intermediate bulk container body 
with additional external protection against impact and abrasion. For 
example, a multi-layer (sandwich) or double wall

[[Page 909]]

construction or a frame with a metal lattice-work casing.
    (c) Construction requirements for metal intermediate bulk containers 
are as follows:
    (1) Body. The body must be made of ductile metal materials. Welds 
must be made so as to maintain design type integrity of the receptacle 
under conditions normally incident to transportation.
    (i) The use of dissimilar metals must not result in deterioration 
that could affect the integrity of the body.
    (ii) Aluminum intermediate bulk containers intended to contain 
flammable liquids must have no movable parts, such as covers and 
closures, made of unprotected steel liable to rust, which might cause a 
dangerous reaction from friction or percussive contact with the 
aluminum.
    (iii) Metals used in fabricating the body of a metal intermediate 
bulk container must meet the following requirements:
    (A) For steel, the percentage elongation at fracture must not be 
less than 10,000/Rm with a minimum of 20 percent; where Rm = minimum 
tensile strength of the steel to be used, in N/mm\2\; if U.S. Standard 
units of pounds per square inch are used for tensile strength then the 
ratio becomes 10,000  x  (145/Rm).
    (B) For aluminum, the percentage elongation at fracture must not be 
less than 10,000/(6Rm) with an absolute minimum of eight percent; if 
U.S. Standard units of pounds per square inch are used for tensile 
strength then the ratio becomes 10,000 x 145/(6Rm).
    (C) Specimens used to determine the elongation at fracture must be 
taken transversely to the direction of rolling and be so secured that:

Lo = 5d
    or
Lo = 5.65 A

    where: Lo = gauge length of the specimen before the test

d = diameter
A = cross-sectional area of test specimen.

    (iv) Minimum wall thickness:
    (A) For a reference steel having a product of Rm  x  Ao = 10,000, 
where Ao = minimum elongation (as a percentage) of the reference steel 
to be used on fracture under tensile stress, (Rm  x  Ao = 10,000  x  
145; if tensile strength is in U.S. Standard units of pounds per square 
inch) the wall thickness must not be less than:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
                                                                   Wall thickness in mm (inches)                
                                                 ---------------------------------------------------------------
                                                       Types  11A, 11B, 11N         Types  21A, 21B, 21N, 31A,  
             Capacity in liters \1\              --------------------------------            31B, 31N           
                                                                                 -------------------------------
                                                    Unprotected      Protected      Unprotected      Protected  
----------------------------------------------------------------------------------------------------------------
>450 and 1000........................             2.0                                                
                                                         (0.079)             1.5                                
                                                                         (0.059)             2.5                
                                                                                         (0.098)             2.0
                                                                                                         (0.079)
>1000 and 2000.......................             2.5                                                
                                                         (0.098)             2.0                                
                                                                         (0.079)             3.0                
                                                                                         (0.118)             2.5
                                                                                                         (0.098)
>2000 and 3000.......................             3.0                                                
                                                         (0.118)             2.5                                
                                                                         (0.098)             4.0                
                                                                                         (0.157)             3.0
                                                                                                         (0.118)
----------------------------------------------------------------------------------------------------------------
\1\ Where: gallons = liters  x  0.264.                                                                          

    (B) For metals other than the reference steel described in paragraph 
(c)(1)(iii)(A) of this section, the minimum wall thickness is the 
greater of 1.5 mm (0.059 inches) or as determined by use of the 
following equivalence formula:

                        Formula for Metric Units
[GRAPHIC] [TIFF OMITTED] TP26JN96.000


[[Page 910]]



                     Formula for U.S. Standard Units
[GRAPHIC] [TIFF OMITTED] TP26JN96.001

where:

e1 =required equivalent wall thickness of the metal to be 
used (in mm or if eo is in inches, use formula for U.S. 
Standard units).
eo = required minimum wall thickness for the reference steel 
(in mm or if eo is in inches, use formula for U.S. Standard 
units).
Rm1 = guaranteed minimum tensile strength of the metal to be 
used (in N/mm\2\ or for U.S. Standard units, use pounds per square 
inch).
A1 = minimum elongation (as a percentage) of the metal to be 
used on fracture under tensile stress (see paragraph (c)(1) of this 
section).

    (2) Pressure relief. The following pressure relief requirements 
apply to intermediate bulk containers intended for liquids:
    (i) Intermediate bulk containers must be capable of releasing a 
sufficient amount of vapor in the event of fire engulfment to ensure 
that no rupture of the body will occur due to pressure build-up. This 
can be achieved by spring-loaded or frangible pressure relief devices or 
by other means of construction.
    (ii) The start-to-discharge pressure may not be higher than 65 kPa 
(9 psig) and no lower than the vapor pressure of the hazardous material 
plus the partial pressure of the air or other inert gases, measured in 
the intermediate bulk container at 55  deg.C (131  deg.F), determined on 
the basis of a maximum degree of filling as specified in Sec. 173.35(d) 
of this subchapter. This does not apply to fusible devices unless such 
devices are the only source of pressure relief for the IBC. Pressure 
relief devices must be fitted in the vapor space.
[Amdt. 178-103, 59 FR 38068, July 26, 1994, as amended by Amdt. 178-108, 
60 FR 40038, Aug. 4, 1995; Amdt. 178-117, 61 FR 50629, Sept. 26, 1996]



Sec. 178.706  Standards for rigid plastic intermediate bulk containers.

    (a) The provisions in this section apply to rigid plastic 
intermediate bulk containers intended to contain solids or liquids. 
Rigid plastic intermediate bulk container types are designated:
    (1) 11H1 fitted with structural equipment designed to withstand the 
whole load when intermediate bulk containers are stacked, for solids 
which are loaded or discharged by gravity.
    (2) 11H2 freestanding, for solids which are loaded or discharged by 
gravity.
    (3) 21H1 fitted with structural equipment designed to withstand the 
whole load when intermediate bulk containers are stacked, for solids 
which are loaded or discharged under pressure.
    (4) 21H2 freestanding, for solids which are loaded or discharged 
under pressure.
    (5) 31H1 fitted with structural equipment designed to withstand the 
whole load when intermediate bulk containers are stacked, for liquids.
    (6) 31H2 freestanding, for liquids.
    (b) Rigid plastic intermediate bulk containers consist of a rigid 
plastic body, which may have structural equipment, together with 
appropriate service equipment.
    (c) Rigid plastic intermediate bulk containers must be manufactured 
from plastic material of known specifications and be of a strength 
relative to its capacity and to the service it is required to perform. 
In addition to conformance to Sec. 173.24 of this subchapter, plastic 
materials must be resistant to aging and to degradation caused by 
ultraviolet radiation.
    (1) If protection against ultraviolet radiation is necessary, it 
must be provided by the addition of a pigment or inhibiter such as 
carbon black. These additives must be compatible with the contents and 
remain effective throughout the life of the intermediate bulk container 
body. Where use is made of carbon black, pigments or inhibitors, other 
than those used in the manufacture of the tested design type, retesting 
may be omitted if changes in the carbon black content, the pigment 
content or the inhibitor content do not adversely affect the physical 
properties of the material of construction.
    (2) Additives may be included in the composition of the plastic 
material to improve the resistance to aging or to serve other purposes, 
provided they do

[[Page 911]]

not adversely affect the physical or chemical properties of the material 
of construction.
    (3) No used material other than production residues or regrind from 
the same manufacturing process may be used in the manufacture of rigid 
plastic intermediate bulk containers.
    (4) Rigid plastic intermediate bulk containers intended for the 
transportation of liquids must be capable of releasing a sufficient 
amount of vapor to prevent the body of the intermediate bulk container 
from rupturing if it is subjected to an internal pressure in excess of 
that for which it was hydraulically tested. This may be achieved by 
spring-loaded or frangible pressure relief devices or by other means of 
construction.



Sec. 178.707  Standards for composite intermediate bulk containers.

    (a) The provisions in this section apply to:
    (1) Composite intermediate bulk containers intended to contain 
solids and liquids. Composite intermediate bulk container types are 
designated:
    (i) 11HZ1 Composite intermediate bulk containers with a rigid 
plastic inner receptacle for solids loaded or discharged by gravity.
    (ii) 11HZ2 Composite intermediate bulk containers with a flexible 
plastic inner receptacle for solids loaded or discharged by gravity.
    (iii) 21HZ1 Composite intermediate bulk containers with a rigid 
plastic inner receptacle for solids loaded or discharged under pressure.
    (iv) 21HZ2 Composite intermediate bulk containers with a flexible 
plastic inner receptacle for solids loaded or discharged under pressure.
    (v) 31HZ1 Composite intermediate bulk containers with a rigid 
plastic inner receptacle for liquids.
    (vi) 31HZ2 Composite intermediate bulk containers with a flexible 
plastic inner receptacle for liquids.
    (2) The marking code in paragraph (a)(1) of this section must be 
completed by replacing the letter Z by a capital letter in accordance 
with Sec. 178.702(a)(2) to indicate the material used for the outer 
packaging.
    (b) Definitions for composite intermediate bulk container types:
    (1) A composite intermediate bulk container is an intermediate bulk 
container which consists of a rigid outer packaging enclosing a plastic 
inner receptacle together with any service or other structural 
equipment. The outer packaging of a composite intermediate bulk 
container is designed to bear the entire stacking load. The inner 
receptacle and outer packaging form an integral packaging and are 
filled, stored, transported, and emptied as a unit.
    (2) The term plastic means polymeric materials (i.e., plastic or 
rubber).
    (3) A ``rigid'' inner receptacle is an inner receptacle which 
retains its general shape when empty without closures in place and 
without benefit of the outer casing. Any inner receptacle that is not 
``rigid'' is considered to be ``flexible.''
    (c) Construction requirements for composite intermediate bulk 
containers with plastic inner receptacles are as follows:
    (1) The outer packaging must consist of rigid material formed so as 
to protect the inner receptacle from physical damage during handling and 
transportation, but is not required to perform the secondary containment 
function. It includes the base pallet where appropriate. The inner 
receptacle is not intended to perform a containment function without the 
outer packaging.
    (2) A composite intermediate bulk container with a fully enclosing 
outer packaging must be designed to permit assessment of the integrity 
of the inner container following the leakproofness and hydraulic tests. 
The outer packaging of 31HZ2 composite intermediate bulk containers must 
enclose the inner receptacles on all sides.
    (3) The inner receptacle must be manufactured from plastic material 
of known specifications and be of a strength relative to its capacity 
and to the service it is required to perform. In addition to conformance 
with the requirements of Sec. 173.24 of this subchapter, the material 
must be resistant to aging and to degradation caused by ultraviolet 
radiation. The inner receptacle of 31HZ2 composite intermediate bulk 
containers must consist of at least three plies of film.
    (i) If necessary, protection against ultraviolet radiation must be 
provided

[[Page 912]]

by the addition of pigments or inhibitors such as carbon black. These 
additives must be compatible with the contents and remain effective 
throughout the life of the inner receptacle. Where use is made of carbon 
black, pigments, or inhibitors, other than those used in the manufacture 
of the tested design type, retesting may be omitted if the carbon black 
content, the pigment content, or the inhibitor content do not adversely 
affect the physical properties of the material of construction.
    (ii) Additives may be included in the composition of the plastic 
material of the inner receptacle to improve resistance to aging, 
provided they do not adversely affect the physical or chemical 
properties of the material.
    (iii) No used material other than production residues or regrind 
from the same manufacturing process may be used in the manufacture of 
inner receptacles.
    (iv) Composite intermediate bulk containers intended for the 
transportation of liquids must be capable of releasing a sufficient 
amount of vapor to prevent the body of the intermediate bulk container 
from rupturing if it is subjected to an internal pressure in excess of 
that for which it was hydraulically tested. This may be achieved by 
spring-loaded or frangible pressure relief devices or by other means of 
construction.
    (4) The strength of the construction material comprising the outer 
packaging and the manner of construction must be appropriate to the 
capacity of the composite intermediate bulk container and its intended 
use. The outer packaging must be free of any projection that might 
damage the inner receptacle.
    (i) Outer packagings of natural wood must be constructed of well 
seasoned wood that is commercially dry and free from defects that would 
materially lessen the strength of any part of the outer packaging. The 
tops and bottoms may be made of water-resistant reconstituted wood such 
as hardboard or particle board. Materials other than natural wood may be 
used for construction of structural equipment of the outer packaging.
    (ii) Outer packagings of plywood must be made of well-seasoned, 
rotary cut, sliced, or sawn veneer, commercially dry and free from 
defects that would materially lessen the strength of the casing. All 
adjacent plies must be glued with water-resistant adhesive. Materials 
other than plywood may be used for construction of structural equipment 
of the outer packaging. Outer packagings must be firmly nailed or 
secured to corner posts or ends or be assembled by equally suitable 
devices.
    (iii) Outer packagings of reconstituted wood must be constructed of 
water-resistant reconstituted wood such as hardboard or particle board. 
Materials other than reconstituted wood may be used for the construction 
of structural equipment of reconstituted wood outer packaging.
    (iv) Fiberboard outer packagings must be constructed of strong, 
solid, or double-faced corrugated fiberboard (single or multiwall).
    (A) Water resistance of the outer surface must be such that the 
increase in mass, as determined in a test carried out over a period of 
30 minutes by the Cobb method of determining water absorption, is not 
greater than 155 grams per square meter (0.0316 pounds per square foot--
see ISO International Standard 535-1976 (E)). Fiberboard must have 
proper bending qualities. Fiberboard must be cut, creased without 
cutting through any thickness of fiberboard, and slotted so as to permit 
assembly without cracking, surface breaks, or undue bending. The fluting 
of corrugated fiberboard must be firmly glued to the facings.
    (B) The ends of fiberboard outer packagings may have a wooden frame 
or be constructed entirely of wood. Wooden battens may be used for 
reinforcements.
    (C) Manufacturers' joints in the bodies of outer packagings must be 
taped, lapped and glued, or lapped and stitched with metal staples.
    (D) Lapped joints must have an appropriate overlap.
    (E) Where closing is effected by gluing or taping, a water-resistant 
adhesive must be used.
    (F) All closures must be sift-proof.

[[Page 913]]

    (v) Outer packagings of plastic materials must be constructed in 
accordance with the relevant provisions of paragraph (c)(3) of this 
section.
    (5) Any integral pallet base forming part of an intermediate bulk 
container, or any detachable pallet, must be suitable for the mechanical 
handling of an intermediate bulk container filled to its maximum 
permissible gross mass.
    (i) The pallet or integral base must be designed to avoid 
protrusions that may cause damage to the intermediate bulk container in 
handling.
    (ii) The outer packaging must be secured to any detachable pallet to 
ensure stability in handling and transportation. Where a detachable 
pallet is used, its top surface must be free from sharp protrusions that 
might damage the intermediate bulk container.
    (iii) Strengthening devices, such as timber supports to increase 
stacking performance, may be used but must be external to the inner 
receptacle.
    (iv) The load-bearing surfaces of intermediate bulk containers 
intended for stacking must be designed to distribute loads in a stable 
manner. An intermediate bulk container intended for stacking must be 
designed so that loads are not supported by the inner receptacle.
    (6) Intermediate IBCs of type 31HZ2 must be limited to a capacity of 
not more than 1,250 liters.
[Amdt. 178-103, 59 FR 38068, July 26, 1994, as amended by Amdt. 178-119, 
62 FR 24743, May 6, 1997]



Sec. 178.708  Standards for fiberboard intermediate bulk containers.

    (a) The provisions of this section apply to fiberboard intermediate 
bulk containers intended to contain solids that are loaded or discharged 
by gravity. Fiberboard intermediate bulk containers are designated: 11G.
    (b) Definitions for fiberboard intermediate bulk container types:
    (1) Fiberboard intermediate bulk containers consist of a fiberboard 
body with or without separate top and bottom caps, appropriate service 
and structural equipment, and if necessary an inner liner (but no inner 
packaging).
    (2) Liner means a separate tube or bag, including the closures of 
its openings, inserted in the body but not forming an integral part of 
it.
    (c) Construction requirements for fiberboard intermediate bulk 
containers are as follows:
    (1) Top lifting devices are prohibited in fiberboard intermediate 
bulk containers.
    (2) Fiberboard intermediate bulk containers must be constructed of 
strong, solid or double-faced corrugated fiberboard (single or 
multiwall) that is appropriate to the capacity of the outer packaging 
and its intended use. Water resistance of the outer surface must be such 
that the increase in mass, as determined in a test carried out over a 
period of 30 minutes by the Cobb method of determining water absorption, 
is not greater than 155 grams per square meter (0.0316 pounds per square 
foot see ISO 535-1976(E)). Fiberboard must have proper bending 
qualities. Fiberboard must be cut, creased without cutting through any 
thickness of fiberboard, and slotted so as to permit assembly without 
cracking, surface breaks, or undue bending. The fluting of corrugated 
fiberboard must be firmly glued to the facings.
    (i) The walls, including top and bottom, must have a minimum 
puncture resistance of 15 Joules (11 foot-pounds of energy) measured 
according to ISO 3036, incorporated by reference in Sec. 171.7 of this 
subchapter.
    (ii) Manufacturers' joints in the bodies of intermediate bulk 
containers must be made with an appropriate overlap and be taped, glued, 
stitched with metal staples or fastened by other means at least equally 
effective. Where joints are made by gluing or taping, a water-resistant 
adhesive must be used. Metal staples must pass completely through all 
pieces to be fastened and be formed or protected so that any inner liner 
cannot be abraded or punctured by them.
    (3) The strength of the material used and the construction of the 
liner must be appropriate to the capacity of the intermediate bulk 
container and the intended use. Joints and closures must be sift-proof 
and capable of withstanding pressures and impacts liable to occur under 
normal conditions of handling and transport.

[[Page 914]]

    (4) Any integral pallet base forming part of an intermediate bulk 
container, or any detachable pallet, must be suitable for the mechanical 
handling of an intermediate bulk container filled to its maximum 
permissible gross mass.
    (i) The pallet or integral base must be designed to avoid 
protrusions that may cause damage to the intermediate bulk container in 
handling.
    (ii) The outer packaging must be secured to any detachable pallet to 
ensure stability in handling and transport. Where a detachable pallet is 
used, its top surface must be free from sharp protrusions that might 
damage the intermediate bulk container.
    (iii) Strengthening devices, such as timber supports to increase 
stacking performance, may be used but must be external to the inner 
liner.
    (iv) The load-bearing surfaces of intermediate bulk containers 
intended for stacking must be designed to distribute loads in a stable 
manner.



Sec. 178.709  Standards for wooden intermediate bulk containers.

    (a) The provisions in this section apply to wooden intermediate bulk 
containers intended to contain solids that are loaded or discharged by 
gravity. Wooden intermediate bulk container types are designated:
    (1) 11C Natural wood with inner liner.
    (2) 11D Plywood with inner liner.
    (3) 11F Reconstituted wood with inner liner.
    (b) Definitions for wooden intermediate bulk containers:
    (1) Wooden intermediate bulk containers consist of a rigid or 
collapsible wooden body together with an inner liner (but no inner 
packaging) and appropriate service and structural equipment.
    (2) Liner means a separate tube or bag, including the closures of 
its openings, inserted in the body but not forming an integral part of 
it.
    (c) Construction requirements for wooden intermediate bulk 
containers are as follows:
    (1) Top lifting devices are prohibited in wooden intermediate bulk 
containers.
    (2) The strength of the materials used and the method of 
construction must be appropriate to the capacity and intended use of the 
intermediate bulk container.
    (i) Natural wood used in the construction of an intermediate bulk 
container must be well-seasoned, commercially dry, and free from defects 
that would materially lessen the strength of any part of the 
intermediate bulk container. Each intermediate bulk container part must 
consist of uncut wood or a piece equivalent in strength and integrity. 
Intermediate bulk container parts are equivalent to one piece when a 
suitable method of glued assembly is used (i.e., a Lindermann joint, 
tongue and groove joint, ship lap or rabbet joint, or butt joint with at 
least two corrugated metal fasteners at each joint, or when other 
methods at least equally effective are used). Materials other than 
natural wood may be used for the construction of structural equipment of 
the outer packaging.
    (ii) Plywood used in construction of bodies must be at least 3-ply. 
Plywood must be made of well-seasoned, rotary-cut, sliced or sawn 
veneer, commercially dry, and free from defects that would materially 
lessen the strength of the body. All adjacent plies must be glued with 
water-resistant adhesive. Materials other than plywood may be used for 
the construction of structural equipment of the outer packaging.
    (iii) Reconstituted wood used in construction of bodies must be 
water resistant reconstituted wood such as hardboard or particle board. 
Materials other than reconstituted wood may be used for the construction 
of structural equipment of the outer packaging.
    (iv) Wooden intermediate bulk containers must be firmly nailed or 
secured to corner posts or ends or be assembled by similar devices.
    (3) The strength of the material used and the construction of the 
liner must be appropriate to the capacity of the intermediate bulk 
container and its intended use. Joints and closures must be sift-proof 
and capable of withstanding pressures and impacts liable to occur under 
normal conditions of handling and transportation.
    (4) Any integral pallet base forming part of an intermediate bulk 
container, or any detachable pallet, must be suitable for the mechanical 
handling of an

[[Page 915]]

intermediate bulk container filled to its maximum permissible gross 
mass.
    (i) The pallet or integral base must be designed to avoid 
protrusions that may cause damage to the intermediate bulk container in 
handling.
    (ii) The outer packaging must be secured to any detachable pallet to 
ensure stability in handling and transportation. Where a detachable 
pallet is used, its top surface must be free from sharp protrusions that 
might damage the intermediate bulk container.
    (iii) Strengthening devices, such as timber supports to increase 
stacking performance, may be used but must be external to the inner 
liner.
    (iv) The load-bearing surfaces of intermediate bulk containers 
intended for stacking must be designed to distribute loads in a stable 
manner.



Sec. 178.710  Standards for flexible intermediate bulk containers.

    (a) The provisions of this section apply to flexible intermediate 
bulk containers intended to contain solid hazardous materials. Flexible 
intermediate bulk container types are designated:
    (1) 13H1 woven plastic without coating or liner.
    (2) 13H2 woven plastic, coated.
    (3) 13H3 woven plastic with liner.
    (4) 13H4 woven plastic, coated and with liner.
    (5) 13H5 plastic film.
    (6) 13L1 textile without coating or liner.
    (7) 13L2 textile, coated.
    (8) 13L3 textile with liner.
    (9) 13L4 textile, coated and with liner.
    (10) 13M1 paper, multiwall.
    (11) 13M2 paper, multiwall, water resistant.
    (b) Definitions for flexible intermediate bulk containers:
    (1) Flexible intermediate bulk containers consist of a body 
constructed of film, woven plastic, woven fabric, paper, or combination 
thereof, together with any appropriate service equipment and handling 
devices, and if necessary, an inner coating or liner.
    (2) Woven plastic means a material made from stretched tapes or 
monofilaments.
    (3) Handling device means any sling, loop, eye, or frame attached to 
the body of the intermediate bulk container or formed from a 
continuation of the intermediate bulk container body material.
    (c) Construction requirements for flexible intermediate bulk 
containers are as follows:
    (1) The strength of the material and the construction of the 
flexible intermediate bulk container must be appropriate to its capacity 
and its intended use.
    (2) All materials used in the construction of flexible intermediate 
bulk containers of types 13M1 and 13M2 must, after complete immersion in 
water for not less than 24 hours, retain at least 85 percent of the 
tensile strength as measured originally on the material conditioned to 
equilibrium at 67 percent relative humidity or less.
    (3) Seams must be stitched or formed by heat sealing, gluing or any 
equivalent method. All stitched seam-ends must be secured.
    (4) In addition to conformance with the requirements of Sec. 173.24 
of this subchapter, flexible intermediate bulk containers must be 
resistant to aging and degradation caused by ultraviolet radiation.
    (5) For plastic flexible intermediate bulk containers, if necessary, 
protection against ultraviolet radiation must be provided by the 
addition of pigments or inhibitors such as carbon black. These additives 
must be compatible with the contents and remain effective throughout the 
life of the container. Where use is made of carbon black, pigments, or 
inhibitors, other than those used in the manufacture of the tested 
design type, retesting may be omitted if the carbon black content, the 
pigment content or the inhibitor content does not adversely affect the 
physical properties of the material of construction. Additives may be 
included in the composition of the plastic material to improve 
resistance to aging, provided they do not adversely affect the physical 
or chemical properties of the material.
    (6) No used material other than production residues or regrind from 
the same manufacturing process may be used in the manufacture of plastic

[[Page 916]]

flexible intermediate bulk containers. This does not preclude the re-use 
of component parts such as fittings and pallet bases, provided such 
components have not in any way been damaged in previous use.
    (7) When flexible intermediate bulk containers are filled, the ratio 
of height to width may not be more than 2:1.
[Amdt. 178-103, 59 FR 38068, July 26, 1994, as amended by Amdt. 178-108, 
60 FR 40038, Aug. 4, 1995]



           Subpart O--Testing of Intermediate Bulk Containers

    Source:  Amdt. 178-103, 59 FR 38074, July 26, 1994, unless otherwise 
noted.



Sec. 178.800  Purpose and scope.

    This subpart prescribes certain testing requirements for 
intermediate bulk containers identified in subpart N of this part.



Sec. 178.801  General requirements.

    (a) General. The test procedures prescribed in this subpart are 
intended to ensure that intermediate bulk containers containing 
hazardous materials can withstand normal conditions of transportation 
and are considered minimum requirements. Each packaging must be 
manufactured and assembled so as to be capable of successfully passing 
the prescribed tests and of conforming to the requirements of 
Sec. 173.24 of this subchapter at all times while in transportation.
    (b) Responsibility. It is the responsibility of the intermediate 
bulk container manufacturer to assure that each intermediate bulk 
container is capable of passing the prescribed tests. To the extent that 
an intermediate bulk container assembly function, including final 
closure, is performed by the person who offers a hazardous material for 
transportation, that person is responsible for performing the function 
in accordance with Secs. 173.22 and 178.2 of this subchapter.
    (c) Definitions. For the purpose of this subpart:
    (1) Intermediate bulk container design type refers to intermediate 
bulk container which does not differ in structural design, size, 
material of construction, wall thickness, manner of construction and 
representative service equipment.
    (2) Design qualification testing is the performance of the drop, 
leakproofness, hydrostatic pressure, stacking, bottom-lift or top-lift, 
tear, topple, righting and vibration tests, as applicable, prescribed in 
this subpart, for each different intermediate bulk container design 
type, at the start of production of that packaging.
    (3) Periodic design requalification test is the performance of the 
applicable tests specified in paragraph (c)(2) of this section on an 
intermediate bulk container design type, in order to requalify the 
design for continued production at the frequency specified in paragraph 
(e) of this section.
    (4) Production inspection is the inspection that must initially be 
conducted on each newly manufactured intermediate bulk container.
    (5) Production testing is the performance of the leakproofness test 
in accordance with paragraph (f) of this section on each intermediate 
bulk container intended to contain solids discharged by pressure or 
intended to contain liquids.
    (6) Periodic retest and inspection is performance of the applicable 
test and inspections on each intermediate bulk container at the 
frequency specified in Sec. 180.352 of this subchapter.
    (7) Different intermediate bulk container design type is one that 
differs from a previously qualified intermediate bulk container design 
type in structural design, size, material of construction, wall 
thickness, or manner of construction, but does not include:
    (i) A packaging which differs in surface treatment;
    (ii) A rigid plastic intermediate bulk container or composite 
intermediate bulk container which differs with regard to additives used 
to comply with Secs. 178.706(c), 178.707(c) or 178.710(c);
    (iii) A packaging which differs only in its lesser external 
dimensions (i.e., height, width, length) provided materials of 
construction and material thicknesses or fabric weight remain the same;
    (iv) A packaging which differs in service equipment.

[[Page 917]]

    (d) Design qualification testing. The packaging manufacturer shall 
achieve successful test results for the design qualification testing at 
the start of production of each new or different intermediate bulk 
container design type. The service equipment selected for this design 
qualification testing shall be representative of the type of service 
equipment that will be fitted to any finished intermediate bulk 
container body under the design. Application of the certification mark 
by the manufacturer shall constitute certification that the intermediate 
bulk container design type passed the prescribed tests in this subpart.
    (e) Periodic design requalification testing. (1) Periodic design 
requalification must be conducted on each qualified intermediate bulk 
container design type if the manufacturer is to maintain authorization 
for continued production. The intermediate bulk container manufacturer 
shall achieve successful test results for the periodic design 
requalification at sufficient frequency to ensure each packaging 
produced by the manufacturer is capable of passing the design 
qualification tests. Design requalification tests must be conducted at 
least once every 12 months.
    (2) Changes in the frequency of design requalification testing 
specified in paragraph (e)(1) of this section are authorized if approved 
by the Associate Administrator for Hazardous Materials Safety. These 
requests must be based on:
    (i) Detailed quality assurance programs that assure that proposed 
decreases in test frequency maintain the integrity of originally tested 
intermediate bulk container design types; and
    (ii) Demonstrations that each intermediate bulk container produced 
is capable of withstanding higher standards (e.g., increased drop 
height, hydrostatic pressure, wall thickness, fabric weight).
    (f) Production testing and inspection. (1) Production testing 
consists of the leakproofness test prescribed in Sec. 178.813 of this 
subpart and must be performed on each intermediate bulk container 
intended to contain solids discharged by pressure or intended to contain 
liquids. For this test:
    (i) The intermediate bulk container need not have its closures 
fitted.
    (ii) The inner receptacle of a composite intermediate bulk container 
may be tested without the outer intermediate bulk container body, 
provided the test results are not affected.
    (2) Applicable inspection requirements in Sec. 180.352 of this 
subchapter must be performed on each intermediate bulk container 
initially after production.
    (g) Test samples. The intermediate bulk container manufacturer shall 
conduct the design qualification and periodic design requalification 
tests prescribed in this subpart using random samples of intermediate 
bulk containers, according to the appropriate test section.
    (h) Selective testing of intermediate bulk containers. Variation of 
a tested intermediate bulk container design type is permitted without 
further testing, provided selective testing demonstrates an equivalent 
or greater level of safety than the design type tested and which has 
been approved by the Associate Administrator for Hazardous Materials 
Safety.
    (i) Approval of equivalent packagings. An intermediate bulk 
container which differs from the standards in subpart N of this part, or 
which is tested using methods other than those specified in this 
subpart, may be used if approved by the Associate Administrator for 
Hazardous Materials Safety. Such intermediate bulk containers must be 
shown to be equally effective, and testing methods used must be 
equivalent.
    (j) Proof of compliance. Notwithstanding the periodic design 
requalification testing intervals specified in paragraph (e) of this 
section, the Associate Administrator for Hazardous Materials Safety, or 
a designated representative, may at any time require demonstration of 
compliance by a manufacturer, through testing in accordance with this 
subpart, that packagings meet the requirements of this subpart. As 
required by the Associate Administrator for Hazardous Materials Safety, 
or a designated representative, the manufacturer shall either:

[[Page 918]]

    (1) Conduct performance tests or have tests conducted by an 
independent testing facility, in accordance with this subpart; or
    (2) Make a sample intermediate bulk container available to the 
Associate Administrator for Hazardous Materials Safety, or a designated 
representative, for testing in accordance with this subpart.
    (k) Coatings. If an inner treatment or coating of an intermediate 
bulk container is required for safety reasons, the manufacturer shall 
design the intermediate bulk container so that the treatment or coating 
retains its protective properties even after withstanding the tests 
prescribed by this subpart.
    (l) Record retention. (1) The person who certifies an intermediate 
bulk container design type shall keep records of design qualification 
tests for each intermediate bulk container design type and for each 
periodic design requalification as specified in this part. These records 
must be maintained at each location where the intermediate bulk 
container is manufactured and at each location where design 
qualification and periodic design requalification testing is performed. 
These records must be maintained for as long as intermediate bulk 
containers are manufactured in accordance with each qualified design 
type and for at least 2.5 years thereafter. These records must include 
the following information: name and address of test facility; name and 
address of the person certifying the intermediate bulk container; a 
unique test report identification; date of test report; manufacturer of 
the intermediate bulk container; description of the intermediate bulk 
container design type (e.g., dimensions, materials, closures, thickness, 
representative service equipment, etc.); maximum intermediate bulk 
container capacity; characteristics of test contents; test descriptions 
and results (including drop heights, hydrostatic pressures, tear 
propagation length, etc.). Each test report must be signed with the name 
of the person conducting the test, and name of the person responsible 
for testing.
    (2) The person who certifies each intermediate bulk container must 
make all records of design qualification tests and periodic design 
requalification tests available for inspection by a representative of 
the Department upon request.
[Amdt. 178-103, 59 FR 38074, July 26, 1994, as amended by Amdt. 178-108, 
60 FR 40038, Aug. 4, 1995]



Sec. 178.802  Preparation of fiberboard intermediate bulk containers for testing.

    (a) Fiberboard intermediate bulk containers and composite 
intermediate bulk containers with fiberboard outer packagings must be 
conditioned for at least 24 hours in an atmosphere maintained:
    (1) At 50 percent  2 percent relative humidity, and at a 
temperature of 23 deg.  2  deg.C (73 deg.F  4 
deg.F); or
    (2) At 65 percent  2 percent relative humidity, and at a 
temperature of 20 deg.  2  deg.C (68  deg.F  4 
deg.F), or 27  deg.C  2  deg.C (81  deg.F  4 
deg.F).
    (b) Average values for temperature and humidity must fall within the 
limits in paragraph (a) of this section. Short-term fluctuations and 
measurement limitations may cause individual measurements to vary by up 
to  5 percent relative humidity without significant 
impairment of test reproducibility.
    (c) For purposes of periodic design requalification only, fiberboard 
intermediate bulk containers or composite intermediate bulk containers 
with fiberboard outer packagings may be at ambient conditions.



Sec. 178.803  Testing and certification of intermediate bulk containers.

    Tests required for the certification of each intermediate bulk 
container design type are specified in the following table. The letter X 
indicates that one intermediate bulk container (except where noted) of 
each design type must be subjected to the tests in the order presented:

[[Page 919]]



                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                           Intermediate Bulk Container (IBC) type                                       
         Performance test         ----------------------------------------------------------------------------------------------------------------------
                                       Metal IBCs      Rigid plastic IBCs    Composite IBCs     Fiber-board IBCs       Wooden IBCs       Flexible IBCs  
--------------------------------------------------------------------------------------------------------------------------------------------------------
Vibration........................  6 X                 6 X                 6 X                 6 X                 6 X                 1.5 X            
Bottom lift......................  2 X                 X                   X                   X                   X                   .................
Top lift.........................  2 X                 2 X                 2 X                 ..................  ..................  2,5 X            
Stacking.........................  7 X                 7 X                 7 X                 7 X                 7 X                 5 X              
Leakproofness....................  3 X                 3 X                 3 X                 ..................  ..................  .................
Hydrostatic......................  4 X                 3 X                 3 X                 ..................  ..................  .................
Drop.............................  4 X                 4 X                 4 X                 4 X                 4 X                 5 X              
Topple...........................  ..................  ..................  ..................  ..................  ..................  5 X              
Righting.........................  ..................  ..................  ..................  ..................  ..................  2,5 X            
Tear.............................  ..................  ..................  ..................  ..................  ..................  5 X              
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Flexible intermediate bulk containers must be capable of withstanding the vibration test.                                                           
\2\ This test must be performed only if intermediate bulk containers are designed to be handled this way. For metal intermediate bulk containers, at    
  least one of the bottom lift or top lift tests must be performed.                                                                                     
\3\ The leakproofness and hydrostatic pressure tests are required only for intermediate bulk containers intended to contain liquids or intended to      
  contain solids loaded or discharged under pressure.                                                                                                   
\4\ Another intermediate bulk container of the same design type may be used for the drop test set forth in Sec.  178.810 of this subchapter.            
\5\ Another different flexible intermediate bulk container of the same design type may be used for each test.                                           
\6\ The vibration test may be performed in another order for intermediate bulk containers manufactured and tested under provisions of an exemption      
  before October 1, 1994 and for non-DOT specification portable tanks tested before October 1, 1994, intended for export.                               
\7\ This test must be performed only if the intermediate bulk container is designed to be stacked.                                                      

[Amdt. 178-108, 60 FR 40039, Aug. 4, 1995]



Sec. 178.810  Drop test.

    (a) General. The drop test must be conducted for the qualification 
of all intermediate bulk container design types and performed 
periodically as specified in Sec. 178.801(e) of this subpart.
    (b) Special preparation for the drop test. (1) Metal, rigid plastic, 
and composite intermediate bulk containers intended to contain solids 
must be filled to not less than 95 percent of their capacity, or if 
intended to contain liquids, to not less than 98 percent of their 
capacity. Pressure relief devices must be removed and their apertures 
plugged or rendered inoperative.
    (2) Fiberboard, wooden, and flexible intermediate bulk containers 
must be filled with a solid material to not less than 95 percent of 
their capacity.
    (3) Rigid plastic intermediate bulk containers and composite 
intermediate bulk containers with plastic inner receptacles must be 
conditioned for testing by reducing the temperature of the packaging and 
its contents to -18  deg.C (0  deg.F) or lower. Test liquids must be 
kept in the liquid state. Anti-freeze should be used, if necessary.
    (c) Test method. Samples of all intermediate bulk container design 
types must be dropped onto a rigid, non-resilient, smooth, flat and 
horizontal surface. The point of impact must be the most vulnerable part 
of the base of the intermediate bulk container being tested. Following 
the drop, the intermediate bulk container must be restored to the 
upright position for observation.
    (d) Drop height. (1) For all intermediate bulk containers, drop 
heights are specified as follows:
    (i) Packing Group I: 1.8 m (5.9 feet).
    (ii) Packing Group II: 1.2 m (3.9 feet).
    (iii) Packing Group III: 0.8 m (2.6 feet).
    (2) Drop tests are to be performed with the solid or liquid to be 
transported or with a non-hazardous material having essentially the same 
physical characteristics.
    (3) The specific gravity and viscosity of a substituted non-
hazardous material used in the drop test for liquids must be similar to 
the hazardous material intended for transportation. Water also may be 
used for the liquid drop test under the following conditions:
    (i) Where the substances to be carried have a specific gravity not 
exceeding 1.2, the drop heights must be those specified in paragraph 
(d)(1) of this section for each intermediate bulk container design type; 
and
    (ii) Where the substances to be carried have a specific gravity 
exceeding 1.2, the drop heights must be as follows:
    (A) Packing Group I: SG x 1.5 m (4.9 feet).

[[Page 920]]

    (B) Packing Group II: SG x 1.0 m (3.3 feet).
    (C) Packing Group III: SG x 0.67 m (2.2 feet).
    (e) Criteria for passing the test. For all intermediate bulk 
container design types there may be no loss of contents. A slight 
discharge from a closure upon impact is not considered to be a failure 
of the intermediate bulk container provided that no further leakage 
occurs. A slight discharge (e.g., from closures or stitch holes) upon 
impact is not considered a failure of the flexible intermediate bulk 
container provided that no further leakage occurs after the intermediate 
bulk container has been raised clear of the ground.



Sec. 178.811  Bottom lift test.

    (a) General. The bottom lift test must be conducted for the 
qualification of all intermediate bulk container design types designed 
to be lifted from the base.
    (b) Special preparation for the bottom lift test. The intermediate 
bulk container must be loaded to 1.25 times its maximum permissible 
gross mass, the load being evenly distributed.
    (c) Test method. All intermediate bulk container design types must 
be raised and lowered twice by a lift truck with the forks centrally 
positioned and spaced at three quarters of the dimension of the side of 
entry (unless the points of entry are fixed). The forks must penetrate 
to three quarters of the direction of entry. The test must be repeated 
from each possible direction of entry.
    (d) Criteria for passing the test. For all intermediate bulk 
container design types designed to be lifted from the base, there may be 
no permanent deformation which renders the intermediate bulk container 
unsafe for transportation and no loss of contents.



Sec. 178.812  Top lift test.

    (a) General. The top lift test must be conducted for the 
qualification of all intermediate bulk container design types designed 
to be lifted from the top or, for flexible intermediate bulk containers, 
from the side.
    (b) Special preparation for the top lift test. (1) Metal, rigid 
plastic, and composite intermediate bulk container design types must be 
loaded to twice the maximum permissible gross mass.
    (2) Flexible intermediate bulk container design types must be filled 
to six times the maximum net mass, the load being evenly distributed.
    (c) Test method. (1) A metal or flexible intermediate bulk container 
must be lifted in the manner for which it is designed until clear of the 
floor and maintained in that position for a period of five minutes. For 
flexible intermediate bulk container design types, other methods of top 
lift testing and preparation at least equally effective may be used (see 
Sec. 178.801(i)).
    (2) Rigid plastic and composite intermediate bulk container design 
types must be:
    (i) Lifted by each pair of diagonally opposite lifting devices, so 
that the hoisting forces are applied vertically, for a period of five 
minutes; and
    (ii) Lifted by each pair of diagonally opposite lifting devices, so 
that the hoisting forces are applied towards the center at 45 deg. to 
the vertical, for a period of five minutes.
    (d) Criteria for passing the test. For all intermediate bulk 
container design types designed to be lifted from the top, there may be 
no permanent deformation which renders the intermediate bulk container, 
including the base pallets when applicable, unsafe for transportation, 
and no loss of contents.



Sec. 178.813  Leakproofness test.

    (a) General. The leakproofness test must be conducted for the 
qualification of all intermediate bulk container design types and on all 
production units intended to contain liquids or intended to contain 
solids that are loaded or discharged under pressure.
    (b) Special preparation for the leakproofness test. Vented closures 
must either be replaced by similar non-vented closures or the vent must 
be sealed. For metal intermediate bulk container design types, the 
initial test must be carried out before the fitting of any thermal 
insulation equipment.
    (c) Test method and pressure applied. The leakproofness test must be 
carried out for a suitable length of time using air at a gauge pressure 
of not less than 20 kPa (2.9 psig). Leakproofness of intermediate bulk 
container design types

[[Page 921]]

must be determined by coating the seams and joints with a heavy oil, a 
soap solution and water, or other methods suitable for the purpose of 
detecting leaks. Other methods, if at least equally effective, may be 
used in accordance with appendix B of this part, or if approved by the 
Associate Administrator for Hazardous Materials Safety, as provided in 
Sec. 178.801(i)).
    (d) Criterion for passing the test. For all intermediate bulk 
container design types intended to contain liquids or intended to 
contain solids that are loaded or discharged under pressure, there may 
be no leakage of air from the intermediate bulk container.



Sec. 178.814  Hydrostatic pressure test.

    (a) General. The hydrostatic pressure test must be conducted for the 
qualification of all metal, rigid plastic, and composite intermediate 
bulk container design types intended to contain liquids or intended to 
contain solids loaded or discharged under pressure.
    (b) Special preparation for the hydrostatic pressure test. For metal 
intermediate bulk containers, the test must be carried out before the 
fitting of any thermal insulation equipment. For all intermediate bulk 
containers, pressure relief devices and vented closures must be removed 
and their apertures plugged or rendered inoperative.
    (c) Test method. Hydrostatic gauge pressure must be measured at the 
top of the intermediate bulk container. The test must be carried out for 
a period of at least 10 minutes applying a hydrostatic gauge pressure 
not less than that indicated in paragraph (d) of this section. The 
intermediate bulk containers may not be mechanically restrained during 
the test.
    (d) Hydrostatic gauge pressure applied. (1) For metal intermediate 
bulk container design types, 31A, 31B, 31N: 65 kPa gauge pressure (9.4 
psig).
    (2) For metal intermediate bulk container design types 21A, 21B, 
21N, 31A, 31B, 31N: 200 kPa (29 psig). For metal intermediate bulk 
container design types 31A, 31B and 31N, the tests in paragraphs (d)(1) 
and (d)(2) of this section must be conducted consecutively.
    (3) For metal intermediate bulk containers design types 21A, 21B, 
and 21N, for Packing Group I solids: 250 kPa (36 psig) gauge pressure.
    (4) For rigid plastic intermediate bulk container design types 21H1 
and 21H2 and composite intermediate bulk container design types 21HZ1 
and 21HZ2: 75 kPa (11 psig).
    (5) For rigid plastic intermediate bulk container design types 31H1 
and 31H2 and composite intermediate bulk container design types 31HZ1 
and 31HZ2: whichever is the greater of:
    (i) The pressure determined by any one of the following methods:
    (A) The gauge pressure (pressure in the intermediate bulk container 
above ambient atmospheric pressure) measured in the intermediate bulk 
container at 55  deg.C (131  deg.F) multiplied by a safety factor of 
1.5. This pressure must be determined on the basis of the intermediate 
bulk container being filled and closed to no more than 98 percent 
capacity at 15  deg.C (60  deg.F);
    (B) If absolute pressure (vapor pressure of the hazardous material 
plus atmospheric pressure) is used, 1.5 multiplied by the vapor pressure 
of the hazardous material at 55  deg.C (131  deg.F) minus 100 kPa (14.5 
psi). If this method is chosen, the hydrostatic test pressure applied 
must be at least 100 kPa gauge pressure (14.5 psig); or
    (C) If absolute pressure (vapor pressure of the hazardous material 
plus atmospheric pressure) is used, 1.75 multiplied by the vapor 
pressure of the hazardous material at 50  deg.C (122  deg.F) minus 100 
kPa (14.5 psi). If this method is chosen, the hydrostatic test pressure 
applied must be at least 100 kPa gauge pressure (14.5 psig); or
    (ii) Twice the greater of: (A) The static pressure of the hazardous 
material on the bottom of the intermediate bulk container filled to 98 
percent capacity; or
    (B) The static pressure of water on the bottom of the intermediate 
bulk container filled to 98 percent capacity.
    (e) Criteria for passing the test(s). (1) For metal intermediate 
bulk containers, subjected to the 65 kPa (9.4 psig) test pressure 
specified in paragraph (d)(1) of this section, there may be no leakage 
or permanent deformation that would make the intermediate bulk container 
unsafe for transportation.

[[Page 922]]

    (2) For metal intermediate bulk containers intended to contain 
liquids, when subjected to the 200 kPa (29 psig) and the 250 kPa (36 
psig) test pressures specified in paragraphs (d)(2) and (d)(3) of this 
section, respectively, there may be no leakage.
    (3) For rigid plastic intermediate bulk container types 21H1, 21H2, 
31H1, and 31H2, and composite intermediate bulk container types 21HZ1, 
21HZ2, 31HZ1, and 31HZ2, there may be no leakage and no permanent 
deformation which renders the intermediate bulk container unsafe for 
transportation.



Sec. 178.815  Stacking test.

    (a) General. The stacking test must be conducted for the 
qualification of all intermediate bulk container design types intended 
to be stacked.
    (b) Special preparation for the stacking test. (1) All intermediate 
bulk containers except flexible intermediate bulk container design types 
must be loaded to their maximum permissible gross mass.
    (2) The flexible intermediate bulk container must be filled to not 
less than 95 percent of its capacity and to its maximum net mass, with 
the load being evenly distributed.
    (c) Test method. (1) All intermediate bulk containers must be placed 
on their base on level, hard ground and subjected to a uniformly 
distributed superimposed test load for a period of at least five minutes 
(see paragraph (d) of this section).
    (2) Fiberboard, wooden, and composite intermediate bulk containers 
with outer packagings constructed of other than plastic materials must 
be subjected to the test for 24 hours.
    (3) Rigid plastic intermediate bulk container types and composite 
intermediate bulk container types with plastic outer packagings (11HH1, 
11HH2, 21HH1, 21HH2, 31HH1 and 31HH2) which bear the stacking load must 
be subjected to the test for 28 days at 40  deg.C (104  deg.F).
    (4) For all intermediate bulk containers, the load must be applied 
by one of the following methods:
    (i) One or more intermediate bulk containers of the same type loaded 
to their maximum permissible gross mass and stacked on the test 
intermediate bulk container; or
    (ii) The calculated superimposed test load weight loaded on either a 
flat plate or a reproduction of the base of the intermediate bulk 
container, which is stacked on the test intermediate bulk container.
    (d) Calculation of superimposed test load. For all intermediate bulk 
containers, the load to be placed on the intermediate bulk container 
must be 1.8 times the combined maximum permissible gross mass of the 
number of similar intermediate bulk containers that may be stacked on 
top of the intermediate bulk container during transportation.
    (e) Criteria for passing the test. (1) For metal, rigid plastic, and 
composite intermediate bulk containers there may be no permanent 
deformation which renders the intermediate bulk container unsafe for 
transportation and no loss of contents.
    (2) For fiberboard and wooden intermediate bulk containers there may 
be no loss of contents and no permanent deformation which renders the 
whole intermediate bulk container, including the base pallet, unsafe for 
transportation.
    (3) For flexible intermediate bulk containers, there may be no 
deterioration which renders the intermediate bulk container unsafe for 
transportation and no loss of contents.
[Amdt. 178-103, 59 FR 38074, July 26, 1994, as amended by Amdt. 178-119, 
62 FR 24743, May 6, 1997]



Sec. 178.816  Topple test.

    (a) General. The topple test must be conducted for the qualification 
of all flexible intermediate bulk container design types.
    (b) Special preparation for the topple test. The flexible 
intermediate bulk container must be filled to not less than 95 percent 
of its capacity and to its maximum net mass, with the load being evenly 
distributed.
    (c) Test method. A flexible intermediate bulk container must be 
toppled onto any part of its top upon a rigid, non-resilient, smooth, 
flat, and horizontal surface.

[[Page 923]]

    (d) Topple height. For all flexible intermediate bulk containers, 
the topple height is specified as follows:
    (1) Packing Group I: 1.8 m (5.9 feet).
    (2) Packing Group II: 1.2 m (3.9 feet).
    (3) Packing Group III: 0.8 m (2.6 feet).
    (e) Criteria for passing the test. For all flexible intermediate 
bulk containers, there may be no loss of contents. A slight discharge 
(e.g., from closures or stitch holes) upon impact is not considered to 
be a failure, provided no further leakage occurs.



Sec. 178.817  Righting test.

    (a) General. The righting test must be conducted for the 
qualification of all flexible intermediate bulk containers designed to 
be lifted from the top or side.
    (b) Special preparation for the righting test. The flexible 
intermediate bulk container must be filled to not less than 95 percent 
of its capacity and to its maximum net mass, with the load being evenly 
distributed.
    (c) Test method. The flexible intermediate bulk container, lying on 
its side, must be lifted at a speed of at least 0.1 m/second (0.33 ft/s) 
to an upright position, clear of the floor, by one lifting device, or by 
two lifting devices when four are provided.
    (d) Criterion for passing the test. For all flexible intermediate 
bulk containers, there may be no damage to the intermediate bulk 
container or its lifting devices which renders the intermediate bulk 
container unsafe for transportation or handling.



Sec. 178.818  Tear test.

    (a) General. The tear test must be conducted for the qualification 
of all flexible intermediate bulk container design types.
    (b) Special preparation for the tear test. The flexible intermediate 
bulk container must be filled to not less than 95 percent of its 
capacity and to its maximum net mass, the load being evenly distributed.
    (c) Test method. Once the intermediate bulk container is placed on 
the ground, a 100-mm (4-inch) knife score, completely penetrating the 
wall of a wide face, is made at a 45 deg. angle to the principal axis of 
the intermediate bulk container, halfway between the bottom surface and 
the top level of the contents. The intermediate bulk container must then 
be subjected to a uniformly distributed superimposed load equivalent to 
twice the maximum net mass. The load must be applied for at least five 
minutes. An intermediate bulk container which is designed to be lifted 
from the top or the side must, after removal of the superimposed load, 
be lifted clear of the floor and maintained in that position for a 
period of five minutes.
    (d) Criterion for passing the test. The intermediate bulk container 
passes the tear test if the cut does not propagate more than 25 percent 
of its original length.



Sec. 178.819  Vibration test.

    (a) General. The vibration test must be conducted for the 
qualification of all rigid intermediate bulk container design types. 
Flexible intermediate bulk container design types must be capable of 
withstanding the vibration test.
    (b) Test method. (1) A sample intermediate bulk container, selected 
at random, must be filled and closed as for shipment.
    (2) The sample intermediate bulk container must be placed on a 
vibrating platform that has a vertical double-amplitude (peak-to-peak 
displacement) of one inch. The intermediate bulk container must be 
constrained horizontally to prevent it from falling off the platform, 
but must be left free to move vertically and bounce.
    (3) The test must be performed for one hour at a frequency that 
causes the package to be raised from the vibrating platform to such a 
degree that a piece of material of approximately 1.6-mm (0.063-inch) 
thickness (such as steel strapping or paperboard) can be passed between 
the bottom of the intermediate bulk container and the platform. Other 
methods at least equally effective may be used (see Sec. 178.801(i)).
    (c) Criteria for passing the test. An intermediate bulk container 
passes the vibration test if there is no rupture or leakage.
[Amdt. 178-103, 59 FR 38074, July 26, 1994, as amended by Amdt. 178-108, 
60 FR 40038, Aug. 4, 1995; Amdt. 178-110, 60 FR 49111, Sept. 21, 1995]

[[Page 924]]

            Appendix A to Part 178--Specifications for Steel

                                                     Table 1                                                    
 [Open-hearth, basic oxygen, or electric steel of uniform quality. The following chemical composition limits are
                                            based on ladle analysis:]                                           
----------------------------------------------------------------------------------------------------------------
                                                      Chemical composition, percent-ladle analysis              
             Designation              --------------------------------------------------------------------------
                                             Grade 1  \1\           Grade 2  \1\ \2\       Grade 3  \2\ \4\ \5\ 
----------------------------------------------------------------------------------------------------------------
Carbon...............................  0.10/0.20..............  0.24 maximum...........  0.22 maximum.          
Manganese............................  1.10/1.60..............  0.50/1.00..............  1.25 maximum.          
Phosphorus, maximum..................  0.04...................  0.04...................  0.045.\6\              
Sulfur, maximum......................  0.05...................  0.05...................  0.05.                  
Silicon..............................  0.15/0.30..............  0.30 maximum...........  .......................
Copper, maximum......................  0.40...................  .......................  .......................
Columbium............................  .......................  0.01/0.04..............  .......................
Heat treatment authorized............  (\3\)..................  (\3\)..................  (\3\).                 
Maximum stress (p.s.i.)..............  35,000.................  35,000.................  35,000.                
----------------------------------------------------------------------------------------------------------------
\1\ Addition of other elements to obtain alloying effect is not authorized.                                     
\2\ Ferritic grain size 6 or finer according to ASTM E112-63.                                                   
\3\ Any suitable heat treatment in excess of 1,100 deg. F., except that liquid quenching is not permitted.      
\4\ Other alloying elements may be added and shall be reported.                                                 
\5\ For compositions with a maximum carbon content of 0.15 percent of ladle analysis, the maximum limit for     
  manganese on ladle analysis may be 1.40 percent.                                                              
\6\ Rephosphorized Grade 3 steels containing no more than 0.15 percent phosphorus are permitted if carbon       
  content does not exceed 0.15 percent and manganese does not exceed 1 percent.                                 


                                            Check Analysis Tolerances                                           
     [A heat of steel made under any of the above grades, the ladle analysis of which is slightly out of the    
            specified range is acceptable if the check analysis is within the following variations:]            
----------------------------------------------------------------------------------------------------------------
                                                                                           Tolerance (percent)  
                                                                                          over the maximum limit
                                                                                           or under the minimum 
                                                                                                  limit         
                    Element                       Limit or maximum specified (percent)  ------------------------
                                                                                            Under        Over   
                                                                                           minimum      maximum 
                                                                                            limit        limit  
----------------------------------------------------------------------------------------------------------------
Carbon.........................................  To 0.15 inclusive.....................        0.02         0.03
                                                 Over 0.15 to 0.40 inclusive...........        0.03         0.04
Manganese......................................  To 0.60 inclusive.....................        0.03         0.03
                                                 Over 0.60 to 1.15 inclusive...........        0.04         0.04
                                                 Over 1.15 to 2.50 inclusive...........        0.05         0.05
Phosphorus  \7\................................  All ranges............................  ...........        0.01
Sulfur.........................................  All ranges............................  ...........        0.01
Silicon........................................  To 0.30 inclusive.....................        0.02         0.03
                                                 Over 0.30 to 1.00 inclusive...........        0.05         0.05
Copper.........................................  To 1.00 inclusive.....................        0.03         0.03
                                                 Over 1.00 to 2.00 inclusive...........        0.05         0.05
Nickel.........................................  To 1.00 inclusive.....................        0.03         0.03
                                                 Over 1.00 to 2.00 inclusive...........        0.05         0.05
Chromium.......................................  To 0.90 inclusive.....................        0.03         0.03
                                                 Over 0.90 to 2.10 inclusive...........        0.05         0.05
Molybdenum.....................................  To 0.20 inclusive.....................        0.01         0.01
                                                 Over 0.20 to 0.40 inclusive...........        0.02         0.02
Zirconium......................................  All ranges............................        0.01         0.05
Columbium......................................  To 0.04 inclusive.....................        0.005        0.01
Aluminum.......................................  Over 0.10 to 0.20 inclusive...........        0.04         0.04
                                                 Over 0.20 to 0.30 inclusive...........        0.05         0.05
----------------------------------------------------------------------------------------------------------------
\7\ Rephosphorized steels not subject to check analysis for phosphorus.                                         

[Amdt. 178-3, 34 FR 12283, July 25, 1969; 34 FR 12593, Aug. 1, 1969, as 
amended by Amdt. 178-64, 45 FR 81573, Dec. 11, 1980; Amdt. 178-97, 55 FR 
52728, Dec. 21, 1990]

     Appendix B to Part 178--Alternative Leakproofness Test Methods

    In addition to the method prescribed in Sec. 178.604 of this 
subchapter, the following leakproofness test methods are authorized:
    (1) Helium test. The packaging must be filled with at least 1 L 
inert helium gas, air tight closed, and placed in a testing chamber. The 
testing chamber must be evacuated down to a pressure of 5 kPa which 
equals an over-pressure inside the packaging of 95 kPa. The air in the 
testing chamber must be analyzed for traces of helium gas by means of a

[[Page 925]]

mass spectrograph. The test must be conducted for a period of time 
sufficient to evacuate the chamber and to determine if there is leakage 
into or out of the packaging. If helium gas is detected, the leaking 
packaging must be automatically separated from non-leaking drums and the 
leaking area determined according to the method prescribed in 
Sec. 178.604(d) of this subchapter. A packaging passes the test if there 
is no leakage of helium.
    (2) Pressure differential test. The packaging shall be restrained 
while either pressure or a vacuum is applied internally. The packaging 
must be pressurized to the pressure required by Sec. 178.604(e) of this 
subchapter for the appropriate packing group. The method of restraint 
must not affect the results of the test. The test must be conducted for 
a period of time sufficient to appropriately pressurize or evacuate the 
interior of the packaging and to determine if there is leakage into or 
out of the packaging. A packaging passes the pressure differential test 
if there is no change in measured internal pressure.
    (3) Solution over seams. The packaging must be restrained while an 
internal air pressure is applied; the method of restraint may not affect 
the results of the test. The exterior surface of all seams and welds 
must be coated with a solution of soap suds or a water and oil mixture. 
The test must be conducted for a period of time sufficient to pressurize 
the interior of the packaging to the specified air pressure and to 
determine if there is leakage of air from the packaging. A packaging 
passes the test if there is no leakage of air from the packaging.
    (4) Solution over partial seams test. For other than design 
qualification testing, the following test may be used for metal drums: 
The packaging must be restrained while an internal air pressure of 48 
kPa (7.0 psig) is applied; the method of restraint may not affect the 
results of the test. The packaging must be coated with a soap solution 
over the entire side seam and a distance of not less than eight inches 
on each side of the side seam along the chime seam(s). The test must be 
conducted for a period of time sufficient to pressurize the interior of 
the packaging to the specified air pressure and to determine if there is 
leakage of air from the packaging. A packaging passes the test if there 
is no leakage of air from the packaging. Chime cuts must be made on the 
initial drum at the beginning of each production run and on the initial 
drum after any adjustment to the chime seamer. Chime cuts must be 
maintained on file in date order for not less than six months and be 
made available to a representative of the Department of Transportation 
on request.
[Amdt. 178-97, 55 FR 52728, Dec. 21, 1990, as amended at 56 FR 66287, 
Dec. 20, 1991; 57 FR 45466, Oct. 1, 1992]

 Appendix C to Part 178--Nominal and Minimum Thicknesses of Steel Drums 
                              and Jerricans

    For each listed packaging capacity, the following table compares the 
ISO Standard 3574 nominal thickness with the corresponding ISO Standard 
3574 minimum thickness.

                                                                        
------------------------------------------------------------------------
                                                   ISO     Corresponding
             Maximum capacity (L)                nominal    ISO minimum 
                                                  (mm)          (mm)    
------------------------------------------------------------------------
20...........................................         0.7          0.63 
30...........................................         0.8          0.73 
40...........................................         0.8          0.73 
60...........................................         1.0          0.92 
120..........................................         1.0          0.92 
220..........................................         1.0          0.92 
450..........................................         1.9          1.77 
------------------------------------------------------------------------

[Amdt. 178-106, 59 FR 67522, Dec. 29, 1994]



PART 179--SPECIFICATIONS FOR TANK CARS--Table of Contents




             Subpart A--Introduction, Approvals and Reports

Sec.
179.1  General.
179.2  Definitions and abbreviations.
179.3  Procedure for securing approval.
179.4  Changes in specifications for tank cars.
179.5  Certificate of construction.
179.6  Repairs and alterations.
179.7  Quality assurance program.

                 Subpart B--General Design Requirements

179.10  Tank mounting.
179.11  Welding certification.
179.12  Interior heater systems.
179.13  Tank car capacity and gross weight limitation.
179.14  Coupler vertical restraint system.
179.15  Pressure relief devices.
179.16  Tank-head puncture-resistance systems.
179.18  Thermal protection systems.
179.20  Service equipment; protection systems.
179.22  Marking.

Subpart C--Specifications for Pressure Tank Car Tanks (Classes DOT-105, 
                           109, 112, and 114)

179.100  General specification applicable to pressure tank car tanks.
179.100-1  Tanks built under these specifications shall comply with the 
          requirements of Secs. 179.100, 179.101 and when applicable, 
          Secs. 179.102, 179.103, and 179.104.
179.100-3  Type.
179.100-4  Insulation.

[[Page 926]]

179.100-6  Thickness of plates.
179.100-7  Materials.
179.100-8  Tank heads.
179.100-9  Welding.
179.100-10  Postweld heat treatment.
179.100-12  Manway nozzle, cover and protective housing.
179.100-13  Venting, loading and unloading valves, measuring and 
          sampling devices.
179.100-14  Bottom outlets.
179.100-16  Attachments.
179.100-17  Closures for openings.
179.100-18  Tests of tanks.
179.100-19  Tests of safety relief valves.
179.100-20  Stamping.
179.100-21  Stenciling.
179.101  Individual specification requirements applicable to pressure 
          tank car tanks.
179.101-1  Individual specification requirements.
179.102  Special commodity requirements for pressure tank car tanks.
179.102-1  Carbon dioxide, refrigerated liquid.
179.102-2  Chlorine.
179.102-4  Vinyl fluoride, inhibited.
179.102-17  Hydrogen chloride, refrigerated liquid.
179.103  Special requirements for class 114A * * * tank car tanks.
179.103-1  Type.
179.103-2  Manway cover.
179.103-3  Venting, loading and unloading valves, measuring and sampling 
          devices.
179.103-4  Safety relief devices and pressure regulators.
179.103-5  Bottom outlets.

 Subpart D--Specifications for Nonpressure Tank Car Tanks (Classes DOT-
                   103, 104, 111AF, 111AW, and 115AW)

179.200  General specifications applicable to non-pressure tank car 
          tanks (Classes DOT-103, 104, and 111).
179.200-1  Tank built under these specifications must meet the 
          requirements of Secs. 179.200, 179.201 and when applicable 
          Sec. 179.202.
179.200-3  Type.
179.200-4  Insulation.
179.200-6  Thickness of plates.
179.200-7  Materials.
179.200-8  Tank heads.
179.200-9  Compartment tanks.
179.200-10  Welding.
179.200-11  Postweld heat treatment.
179.200-13  Manway ring or flange, safety relief device flange, bottom 
          outlet nozzle flange, bottom washout nozzle flange and other 
          attachments and openings.
179.200-14  Expansion capacity.
179.200-15  Closures for manways.
179.200-16  Gauging devices, top loading and unloading devices, venting 
          and air inlet devices.
179.200-17  Bottom outlets.
179.200-19  Reinforcements, when used, and appurtenances not otherwise 
          specified.
179.200-21  Closures for openings.
179.200-22  Test of tanks.
179.200-23  Tests of safety relief valves.
179.200-24  Stamping.
179.201  Individual specification requirements applicable to non-
          pressure tank car tanks.
179.201-1  Individual specification requirements.
179.201-2  Minimum plate thickness.
179.201-3  Lined tanks.
179.201-4  Material.
179.201-5  Postweld heat treatment and corrosion resistance.
179.201-6  Manways and manway closures.
179.201-8  Sampling device and thermometer well.
179.201-9  Gauging device.
179.201-10  Water capacity marking.
179.201-11  Insulation.
179.202--179.202-22  [Reserved]
179.220  General specifications applicable to nonpressure tank car tanks 
          consisting of an inner container supported within an outer 
          shell (class DOT-115).
179.220-1  Tanks built under these specifications must meet the 
          requirements of Sec. 179.220, Sec. 179.221, and Sec. 179.222.
179.220-3  Type.
179.220-4  Insulation.
179.220-6  Thickness of plates.
179.220-7  Materials.
179.220-8  Tank heads.
179.220-9  Compartment tanks.
179.220-10  Welding.
179.220-11  Postweld heat treatment.
179.220-13  Inner container manway nozzle and cover.
179.220-14  Openings in the tanks.
179.220-15  Support system for inner container.
179.220-16  Expansion capacity.
179.220-17  Gauging devices, top loading and unloading devices, venting 
          and air inlet devices.
179.220-18  Bottom outlets.
179.220-20  Reinforcements, when used, and appurtenances not otherwise 
          specified.
179.220-22  Closure for openings.
179.220-23  Test of tanks.
179.220-24  Tests of safety relief valves.
179.220-25  Stamping.
179.220-26  Stenciling.
179.221  Individual specification requirements applicable to tank car 
          tanks consisting of an inner container supported within an 
          outer shell.
179.221-1  Individual specification requirements.

[[Page 927]]

  Subpart E--Specifications for Multi-Unit Tank Car Tanks (Classes DOT-
                             106A and 110AW)

179.300  General specifications applicable to multi-unit tank car tanks 
          designed to be removed from car structure for filling and 
          emptying (Classes DOT-106A and 110AW).
179.300-1  Tanks built under these specifications shall meet the 
          requirements of Sec. 179.300, Sec. 179.301 and when 
          applicable, Sec. 179.302.
179.300-3  Type and general requirements.
179.300-4  Insulation.
179.300-6  Thickness of plates.
179.300-7  Materials.
179.300-8  Tank heads.
179.300-9  Welding.
179.300-10  Postweld heat treatment.
179.300-12  Protection of fittings.
179.300-13  Venting, loading and unloading valves.
179.300-14  Attachments not otherwise specified.
179.300-15  Safety relief devices.
179.300-16  Tests of tanks.
179.300-17  Tests of safety relief devices.
179.300-18  Stamping.
179.300-19  Inspection.
179.300-20  Reports.
179.301  Individual specification requirements for multi-unit tank car 
          tanks.
179.302  [Reserved]

    Subpart F--Specification for Cryogenic Liquid Tank Car Tanks and 
             Seamless Steel Tanks (Classes DOT-113 and 107A)

179.400  General specification applicable to cryogenic liquid tank car 
          tanks.
179.400-1  General.
179.400-3  Type.
179.400-4  Insulation system and performance standard.
179.400-5  Materials.
179.400-6  Bursting and buckling pressure.
179.400-7  Tank heads.
179.400-8  Thickness of plates.
179.400-9  Stiffening rings.
179.400-10  Sump or siphon bowl.
179.400-11  Welding.
179.400-12  Postweld heat treatment.
179.400-13  Support system for inner tank.
179.400-14  Cleaning of inner tank.
179.400-15  Radioscopy.
179.400-16  Access to inner tank.
179.400-17  Inner tank piping.
179.400-18  Test of inner tank.
179.400-19  Valves and gages.
179.400-20  Pressure relief devices.
179.400-21  Test of pressure relief valves.
179.400-22  Protective housings.
179.400-23  Operating instructions.
179.400-24  Stamping.
179.400-25  Stenciling.
179.401  Individual specification requirements applicable to inner tanks 
          for cryogenic liquid tank car tanks.
179.401-1  Individual specification requirements.
179.500  Specification DOT-107A * * * *, seamless steel tank car tanks.
179.500-1  Tanks built under these specifications shall meet the 
          requirements of Sec. 179.500.
179.500-3  Type and general requirements.
179.500-4  Thickness of wall.
179.500-5  Material.
179.500-6  Heat treatment.
179.500-7  Physical tests.
179.500-8  Openings in tanks.
179.500-10  Protective housing.
179.500-11  Loading and unloading valves.
179.500-12  Safety relief devices.
179.500-13  Fixtures.
179.500-14  Test of tanks.
179.500-15  Handling of tanks failing in tests.
179.500-16  Tests of safety relief devices.
179.500-17  Marking.
179.500-18  Inspection and reports.

Appendix A to Part 179--Procedures for Tank-Head Puncture-Resistance 
          Test
Appendix B to Part 179--Procedures for Simulated Pool and Torch-Fire 
          Testing

    Authority:  49 U.S.C. 5101-5127; 49 CFR part 1.53.

    Source:  29 FR 18995, Dec. 29, 1964, unless otherwise noted. 
Redesignated at 32 FR 5606, Apr. 5, 1967.

    Editorial Note: The technical amendment appearing at 35 FR 13835, 
Sept. 1, 1970, deleted the separating hyphens from references to 
specification identifications of tank cars.



             Subpart A--Introduction, Approvals and Reports



Sec. 179.1  General.

    (a) This part prescribes the specifications for tanks that are to be 
mounted on or form part of a tank car and which are used for the 
transportation of hazardous materials in commerce.
    (b) Except as provided in paragraph (c) of this section, tanks to 
which this part is applicable, must be built to the specifications 
prescribed in this part.
    (c) Tanks built to specifications predating those in this part may 
continue in use as provided in Sec. 180.507 of this subchapter.
    (d) Any person who performs a function prescribed in this part, 
shall perform that function in accordance with this part.

[[Page 928]]

    (e) When this part requires a tank to be marked with a DOT 
specification (for example, DOT-105A100W), compliance with that 
requirement is the responsibility of the tank builder. Marking the tank 
with the DOT specification shall be understood to certify compliance by 
the builder that the functions performed by the builder, as prescribed 
in this part, have been performed in compliance with this part.
    (f) The tank builder should inform each person to whom that tank is 
transferred of any specification requirements which have not been met at 
time of transfer.
[Amdt. 179-17, 41 FR 38183, Sept. 9, 1976, as amended by Amdt. 179-50, 
60 FR 49076, Sept. 21, 1995]



Sec. 179.2  Definitions and abbreviations.

    (a) The following apply in part 179:
    (1) AAR means Association of American Railroads.
    (2) Approved means approval by the AAR Committee on Tank Cars.
    (3) ASTM means American Society for Testing and Materials.
    (4) DOT and Department means Department of Transportation.
    (5) Definitions in part 173 of this chapter also apply.
    (6) F means degrees Fahrenheit.
    (7) NGT means National Gas Taper Threads.
    (8) NPT means American Standard Tape Pipe Thread.
    (9) Psi means pounds per square inch gauge.
    (10) Tank car facility means an entity that manufactures, repairs, 
inspects, tests, qualifies, or maintains a tank car to ensure that the 
tank car conforms to this part and subpart F of part 180 of this 
subchapter, that alters the certificate of construction of the tank car, 
that ensures the continuing qualification of a tank car by performing a 
function prescribed in parts 179 or 180 of this subchapter, or that 
makes any representation indicating compliance with one or more of the 
requirements of parts 179 or 180 of this subchapter.
    (11) Tanks means tank car tanks.
    (b) [Reserved]
[29 FR 18995, Dec. 20, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21344, Nov. 6, 1971; Amdt. 179-50, 60 
FR 49076, Sept. 21, 1995; Amdt. 179-50, 61 FR 33255, June 26, 1996]



Sec. 179.3  Procedure for securing approval.

    (a) Application for approval of designs, materials and construction, 
conversion or alteration of tank car tanks under these specifications, 
complete with detailed prints, shall be submitted in prescribed form to 
the Secretary, Mechanical Division, AAR, for consideration by its 
Committee on Tank Cars and other appropriate committees. Approvals or 
rejections of applications, based on appropriate committee action, shall 
be issued by said Secretary.
    (b) When, in the opinion of the Committee, such tanks or equipment 
therefor are in compliance with effective regulations and specifications 
of the Department, the application will be approved.
    (c) When, in the opinion of the Committee, such tanks or equipment 
therefor are not in compliance with effective regulations and 
specifications of the Department, the Committee may recommend service 
trials to determine the merits of a change in specifications. Such 
service trials may be authorized by the Department under the terms of 
exemptions.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967 
and amended by Amdt. 179-41, 52 FR 36672, Sept. 30, 1987]



Sec. 179.4  Changes in specifications for tank cars.

    (a) Proposed changes in or additions to specifications for tanks 
shall be submitted to the Secretary, Mechanical Division, AAR, for 
consideration by its Committee on Tank Cars. An application for 
construction of tanks to any new specification may be submitted with 
proposed specification. Construction should not be started until the 
specification has been approved or an exemption has been issued. When 
proposing a new specification, the applicant shall furnish information 
to justify a new specification. This data

[[Page 929]]

should include the properties of the lading and the method of loading 
and unloading.
    (b) The Subcommittee on Specifications of the Committee on Tank Cars 
shall review the proposed specification at its earliest convenience and 
report its recommendations to the Committee on Tank Cars for prompt 
consideration. The Committee on Tank Cars shall report its 
recommendations through said Secretary to the Department; such reports 
may be submitted to the Bureau of Explosives for its recommendation 
before action by the Department. Expert opinion thus obtained will be 
given due consideration by the Department in determining appropriate 
action.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967 
and amended by Amdt. 179-41, 52 FR 36672, Sept. 30, 1987]



Sec. 179.5  Certificate of construction.

    (a) Except as provided in paragraph (b) of this section, before a 
tank car is placed in service, the party assembling the completed car 
shall furnish a Certificate of Construction, Form AAR 4-2 to the owner, 
the Bureau of Explosives (as required by Sec. 179.5(d)), and the 
Secretary, Mechanical Division, AAR, certifying that the tank, 
equipment, and car completed comply with all the requirements of the 
specification.
    (b) Before a tank of Class DOT-106A, 107A, or 110A is placed in 
service, the builder must furnish a Certificate of Construction, Form 
AAR 4-2 to the owner, the Bureau of Explosives (as required by paragraph 
(d) of this section), and the Secretary, Mechanical Division, AAR, in 
addition to a Certificate of Inspector's Report as required in 
Sec. 179.300-20 and Sec. 179.500-18 in prescribed form certifying that 
the tank and appurtenances comply with all the requirements of the 
specifications.
    (c) If the owner elects to furnish the appurtenances such as valves 
and safety devices, the owner shall furnish to the Bureau of Explosives, 
and to the Secretary, Mechanical Division, AAR, a report in prescribed 
form, certifying that the appurtenances comply with all the requirements 
of the specifications.
    (d) When cars or tanks which are covered on one application and are 
identical in all details are built in series, one certificate shall 
suffice for each series when submitted to the Secretary. One copy of the 
Certificate of Construction must be furnished to the Bureau of 
Explosives for each car number of consecutively numbered group or groups 
covered by the original application.
[Amdt. 179-10, 36 FR 21344, Nov. 6, 1971]



Sec. 179.6  Repairs and alterations.

    For procedure to be followed in making repairs or alterations, see 
appendix R of the AAR Specifications for Tank Cars.
[Amdt. 179-10, 36 FR 21344, Nov. 6, 1971]



Sec. 179.7  Quality assurance program.

    (a) At a minimum, each tank car facility shall have a quality 
assurance program, approved by AAR, that--
    (1) Ensures the finished product conforms to the requirements of the 
applicable specification and regulations of this subchapter;
    (2) Has the means to detect any nonconformity in the manufacturing, 
repair, inspection, testing, and qualification or maintenance program of 
the tank car; and
    (3) Prevents non-conformities from recurring.
    (b) At a minimum, the quality assurance program must have the 
following elements
    (1) Statement of authority and responsibility for those persons in 
charge of the quality assurance program.
    (2) An organizational chart showing the interrelationship between 
managers, engineers, purchasing, construction, inspection, testing, and 
quality control personnel.
    (3) Procedures to ensure that the latest applicable drawings, design 
calculations, specifications, and instructions are used in manufacture, 
inspection, testing, and repair.
    (4) Procedures to ensure that the fabrication and construction 
materials received are properly identified and documented.
    (5) A description of the manufacturing, repair, inspection, testing, 
and qualification or maintenance program, including the acceptance 
criteria, so

[[Page 930]]

that an inspector can identify the characteristics of the tank car and 
the elements to inspect, examine, and test at each point.
    (6) Monitoring and control of processes and product characteristics 
during production.
    (7) Procedures for correction of nonconformities.
    (8) Provisions indicating that the requirements of the AAR 
Specifications for Tank Cars, Specification M-1002, apply.
    (9) Qualification requirements of personnel performing non-
destructive inspections and tests.
    (10) Procedures for evaluating the inspection and test technique 
employed, including the accessibility of the area and the sensitivity 
and reliability of the inspection and test technique and minimum 
detectable crack length.
    (11) Procedures for the periodic calibration and measurement of 
inspection and test equipment.
    (12) A system for the maintenance of records, inspections, tests, 
and the interpretation of inspection and test results.
    (c) Each tank car facility shall ensure that only personnel 
qualified for each non-destructive inspection and test perform that 
particular operation.
    (d) Each tank car facility shall provide written procedures to its 
employees to ensure that the work on the tank car conforms to the 
specification, AAR approval, and owner's acceptance criteria.
    (e) Each tank car facility shall train its employees in accordance 
with Subpart H of part 172 of this subchapter on the program and 
procedures specified in paragraph (b) of this section to ensure quality.
    (f) Date of conformance. After July 1, 1998, no tank car facility 
may manufacture, repair, inspect, test, qualify or maintain tank cars 
subject to requirements of this subchapter, unless it is operating in 
conformance with a quality assurance program and written procedures 
required by paragraphs (a) and (b) of this section.
[Amdt. 179-50, 60 FR 49076, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33255, June 26, 1996]



                 Subpart B--General Design Requirements



Sec. 179.10  Tank mounting.

    (a) The manner in which tanks are attached to the car structure 
shall be approved. The use of rivets to secure anchors to tanks 
prohibited.
    (b) [Reserved]



Sec. 179.11  Welding certification.

    (a) Welding procedures, welders and fabricators shall be approved.
    (b) [Reserved]



Sec. 179.12  Interior heater systems.

    (a) Interior heater systems shall be of approved design and 
materials. If a tank is divided into compartments, a separate system 
shall be provided for each compartment.
    (b) Each interior heater system shall be hydrostatically tested at 
not less than 13.79 bar (200 psi) and shall hold the pressure for 10 
minutes without leakage or evidence of distress.
[Amdt. 179-52, 61 FR 28678, June 5, 1996]



Sec. 179.13  Tank car capacity and gross weight limitation.

    Tank cars built after November 30, 1970, must not exceed 34,500 
gallons capacity or 263,000 pounds gross weight on rail. Existing tank 
cars may not be converted to exceed 34,500 gallons capacity or 263,000 
pounds gross weight on rail.
[Amdt. 179-4, 35 FR 14217, Sept. 9, 1970]



Sec. 179.14  Coupler vertical restraint system.

    (a) Performance standard. Each tank car shall be equipped with 
couplers capable of sustaining, without disengagement or material 
failure, vertical loads of at least 200,000 pounds (90,718.5 kg) applied 
in upward and downward directions in combination with buff loads of 
2,000 pounds (907.2 kg), when coupled to cars which may or may not be 
equipped with couplers having this vertical restraint capability.
    (b) Test verification. Except as provided in paragraph (d) of this 
section, compliance with the requirements of paragraph (a) of this 
section shall be achieved by verification testing of the

[[Page 931]]

coupler vertical restraint system in accordance with paragraph (c) of 
this section.
    (c) Coupler vertical restraint tests. A coupler vertical restraint 
system shall be tested under the following conditions:
    (1) The test coupler shall be tested with a mating coupler (or 
simulated coupler) having only frictional vertical force resistance at 
the mating interface; or a mating coupler (or simulated coupler) having 
the capabilities described in paragraph (a) of this section;
    (2) The testing apparatus shall simulate the vertical coupler 
performance at the mating interface and may not interfere with coupler 
failure or otherwise inhibit failure due to force applications and 
reactions; and
    (3) The test shall be conducted as follows:
    (i) A minimum of 200,000 pounds (90,718.5 kg) vertical downward load 
shall be applied continuously for at least 5 minutes to the test coupler 
head simultaneously with the application of a nominal 2,000 pounds 
(907.2 kg) buff load;
    (ii) The procedures prescribed in paragraph (c)(3)(i) of this 
section, shall be repeated with a minimum vertical upward load of 
200,000 pounds (90,718.5 kg); and
    (iii) A minimum of three consecutive successful tests shall be 
performed for each load combination prescribed in paragraphs (c)(3) (i) 
and (ii) of this section. A test is successful when a vertical 
disengagement or material failure does not occur during the application 
of any of the loads prescribed in this paragraph.
    (d) Authorized couplers. As an alternative to the test verifications 
in paragraph (c) of this section, the following couplers are authorized:
    (1) E double shelf couplers designated by the Association of 
American Railroads' Catalog Nos., SE60CHT, SE60CC, SE60CHTE, SE60CE, 
SE60DC, SE60DE, SE67CC, SE67CE, SE67BHT, SE67BC, SE67BHTE, SE67BE, 
SE68BHT, SE68BC, SE68BHTE, SE68BE, SE69AHTE, and SE69AE.
    (2) F double shelf couplers designated by the Association of 
American Railroads' Catalog Nos., SF70CHT, SF70CC, SF70CHTE, SF70CE, 
SF73AC, SF73AE, SF73AHT, SF73AHTE, SF79CHT, SF79CC, SF79CHTE, and 
SF79CE.
[Amdt. 179-42, 54 FR 38797, Sept. 20, 1989]



Sec. 179.15  Pressure relief devices.

    Except for DOT Class 106, 107, 110, and 113 tank cars, tanks must 
have a pressure relief device, made of material compatible with the 
lading, that conforms to the following requirements:
    (a) Performance standard. Each tank must have a pressure relief 
device, made of material compatible with the lading having sufficient 
flow capacity to prevent pressure build-up in the tank to no more than 
the flow rating pressure of the pressure relief device in fire 
conditions as defined in Appendix A of the Association of American 
Railroads Specifications for Tank Cars.
    (b) Settings for reclosing pressure relief devices. (1) Except as 
provided in paragraph (b)(2) of this section, a reclosing pressure 
relief valve must have a minimum start-to-discharge pressure equal to 
the sum of the static head and gas padding pressure and the lading vapor 
pressure at the following reference temperatures:
    (i) 46  deg.C (115  deg.F) for noninsulated tanks;
    (ii) 43  deg.C (110  deg.F) for tanks having a thermal protection 
system incorporating a metal jacket that provides an overall thermal 
conductance at 15.5  deg.C (60  deg.F) of no more than 10.22 kilojoules 
per hour per square meter per degree Celsius (0.5 Btu per hour/per 
square foot/per degree F) temperature differential; and
    (iii) 41  deg.C (105  deg.F) for insulated tanks.
    (2)(i) The start-to-discharge pressure of a pressure relief device 
may not be lower than 5.17 Bar (75 psig) or exceed 33 percent of the 
minimum tank burst pressure.
    (ii) Tanks built prior to October 1, 1997 having a minimum tank 
burst pressure of 34.47 Bar (500 psig) or less may be equipped with a 
reclosing pressure relief valve having a start-to-discharge pressure of 
not less than 14.5 percent of the minimum tank burst pressure but no 
more than 33 percent of the minimum tank burst pressure.
    (3) The vapor tight pressure of a reclosing pressure relief valve 
must be at least 80 percent of the start-to-discharge pressure.

[[Page 932]]

    (4) The flow rating pressure must be 110 percent of the start-to-
discharge pressure for tanks having a minimum tank burst pressure 
greater than 34.47 Bar (500 psig) and from 110 percent to 130 percent 
for tanks having a minimum tank burst pressure less than or equal to 
34.47 Bar (500 psig).
    (5) The tolerance for a reclosing pressure relief valve is 
3 psi for valves with a start-to-discharge pressure of 6.89 
Bar (100 psig) or less and 3 percent for valves with a 
start-to-discharge pressure greater than 6.89 Bar (100 psig).
    (c) Flow capacity of pressure relief devices. The total flow 
capacity of each reclosing and nonreclosing pressure relief device must 
conform to Appendix A of the Association of American Railroads 
Specifications for Tank Cars.
    (d) Flow capacity tests. The manufacturer of any reclosing or 
nonreclosing pressure relief device must design and test the device in 
accordance with Appendix A of the Association of American Railroads 
Specifications for Tank Cars.
    (e) Combination pressure relief systems. A nonreclosing pressure 
relief device may be used in series with a reclosing pressure relief 
valve. The pressure relief valve must be located outboard of the 
nonreclosing pressure relief device.
    (1) When a breaking pin device is used in combination with a 
reclosing pressure relief valve, the breaking pin must be designed to 
fail at the start-to-discharge pressure specified in paragraph (b) of 
this section, and the reclosing pressure relief valve must be designed 
to discharge at not greater than 95 percent of the start-to-discharge 
pressure.
    (2) When a rupture disc is used in combination with a reclosing 
pressure relief valve, the rupture disc must be designed to burst at the 
start-to-discharge pressure specified in paragraph (b) of this section, 
and the reclosing pressure relief valve must be designed to discharge at 
not greater than 95 percent of the start-to-discharge pressure. A device 
must be installed to detect any accumulation of pressure between the 
rupture disc and the reclosing pressure relief valve. The detection 
device must be a needle valve, trycock, or tell-tale indicator. The 
detection device must be closed during transportation.
    (3) The vapor tight pressure and the start-to-discharge tolerance is 
based on the discharge setting of the reclosing pressure relief device.
    (f) Nonreclosing pressure relief device. In addition to paragraphs 
(a), (b)(4), (c), and (d) of this section, a nonreclosing pressure 
relief device must conform to the following requirements:
    (1) Until October 1, 1998, a nonreclosing pressure relief device 
must incorporate a rupture disc designed to burst at a pressure equal to 
100% of the tank test pressure, or 33% of the tank burst pressure. After 
that date, a nonreclosing pressure relief device must incorporate a 
rupture disc designed to burst at a pressure equal to the greater of 
100% of the tank pressure, or 33% of the tank burst pressure.
    (2) The approach channel and the discharge channel may not reduce 
the required minimum flow capacity of the pressure relief device.
    (3) The nonreclosing pressure relief device must be designed to 
prevent interchange with other fittings installed on the tank car, must 
have a structure that encloses and clamps the rupture disc in position 
(preventing any distortion or damage to the rupture disc when properly 
applied), and must have a cover, with suitable means of preventing 
misplacement, designed to direct any discharge of the lading downward.
    (4) The nonreclosing pressure relief device must be closed with a 
rupture disc that is compatible with the lading and manufactured in 
accordance with Appendix A of the AAR Specifications for Tank Cars. The 
tolerance for a rupture disc is +0 to -15 percent of the burst pressure 
marked on the disc.
    (g) Location of relief devices. Each pressure relief device must 
communicate with the vapor space above the lading as near as practicable 
on the longitudinal center line and center of the tank.
    (h) Marking of pressure relief devices. Each pressure relief device 
and rupture disc must be permanently marked in accordance with the 
Appendix A of the

[[Page 933]]

Association of American Railroads Specifications for Tank Cars.
[Amdt. 179-52, 61 FR 28678, June 5, 1996, as amended by Amdt. 179-52, 61 
FR 50255, Sept. 25, 1996; 62 FR 51561, Oct. 1, 1997]



Sec. 179.16  Tank-head puncture-resistance systems.

    (a) Performance standard. When the regulations in this subchapter 
require a tank-head puncture-resistance system, the system shall be 
capable of sustaining, without any loss of lading, coupler-to-tank-head 
impacts at relative car speeds of 29 km/hour (18 mph) when:
    (1) The weight of the impact car is at least 119,295 kg (263,000 
pounds);
    (2) The impacted tank car is coupled to one or more backup cars that 
have a total weight of at least 217,724 kg (480,000 pounds) and the hand 
brake is applied on the last ``backup'' car; and
    (3) The impacted tank car is pressurized to at least 6.9 Bar (100 
psi).
    (b) Verification by testing. Compliance with the requirements of 
paragraph (a) of this section shall be verified by full-scale testing 
according to Appendix A of this part.
    (c) Alternative compliance by other than testing. As an alternative 
to requirements prescribed in paragraph (b) of this section, compliance 
with the requirements of paragraph (a) of this section may be met by 
installing full-head protection (shields) or full tank-head jackets on 
each end of the tank car conforming to the following:
    (1) The full-head protection (shields) or full tank-head jackets 
must be at least 1.27 cm (0.5 inch) thick, shaped to the contour of the 
tank head and made from steel having a tensile strength greater than 
379.21 N/mm2 (55,000 psi).
    (2) The design and test requirements of the full-head protection 
(shields) or full tank-head jackets must meet the impact test 
requirements of Section 5.3 of the AAR Specifications for Tank Cars.
    (3) The workmanship must meet the requirements of Section C, Part 
II, Chapter 5 of the AAR Specifications for Design, Fabrication, and 
Construction of Freight Cars.
[Amdt. 179-50, 60 FR 49077, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33255, June 26, 1996]



Sec. 179.18  Thermal protection systems.

    (a) Performance standard. When the regulations in this subchapter 
require thermal protection on a tank car, the tank car must have 
sufficient thermal resistance so that there will be no release of any 
lading within the tank car, except release through the pressure release 
device, when subjected to:
    (1) A pool fire for 100 minutes; and
    (2) A torch fire for 30 minutes.
    (b) Thermal analysis. (1) Compliance with the requirements of 
paragraph (a) of this section shall be verified by analyzing the fire 
effects on the entire surface of the tank car. The analysis must 
consider the fire effects on and heat flux through tank discontinuities, 
protective housings, underframes, metal jackets, insulation, and thermal 
protection. A complete record of each analysis shall be made, retained, 
and upon request, made available for inspection and copying by an 
authorized representative of the Department. The procedures outlined in 
``Temperatures, Pressures, and Liquid Levels of Tank Cars Engulfed in 
Fires,'' DOT/FRA/OR&D-84/08.11, (1984), Federal Railroad Administration, 
Washington, DC (available from the National Technical Information 
Service, Springfield, VA) shall be deemed acceptable for analyzing the 
fire effects on the entire surface of the tank car.
    (2) When the analysis shows the thermal resistance of the tank car 
does not conform to paragraph (a) of this section, the thermal 
resistance of the tank car must be increased by using a system listed by 
the Department under paragraph (c) of this section or by testing a new 
or untried system and verifying it according to appendix B of this part.
    (c) Systems that no longer require test verification. The Department 
maintains a list of thermal protection systems that comply with the 
requirements of appendix B of this part and that no

[[Page 934]]

longer require test verification. Information necessary to equip tank 
cars with one of these systems is available in the Dockets Unit, 
Research and Special Programs Administration, 400 Seventh Street, SW., 
Washington, DC 20590-0001.
[Amdt. 179-50, 60 FR 49077, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33256, June 26, 1996]



Sec. 179.20  Service equipment; protection systems.

    If an applicable tank car specification authorizes location of 
filling or discharge connections in the bottom shell, the connections 
must be designed, constructed, and protected according to paragraphs 
E9.00 and E10.00 of the AAR Specifications for Tank Cars, M-1002.
[Amdt. 179-50, 60 FR 49077, Sept. 21, 1995]



Sec. 179.22  Marking.

    In addition to any other marking requirement in this subchapter, the 
following marking requirements apply:
    (a) Each tank car must be marked according to the requirements in 
Appendix C of the AAR Specifications for Tank Cars.
    (b) Each tank car that requires a tank-head puncture-resistance 
system must have the letter ``S'' substituted for the letter ``A'' in 
the specification marking.
    (c) Each tank car that requires a tank-head puncture-resistance 
system, a thermal protection system, and a metal jacket must have the 
letter ``J'' substituted for the letter ``A'' or ``S'' in the 
specification marking.
    (d) Each tank car that requires a tank-head puncture-resistance 
system, a thermal protection system, and no metal jacket must have the 
letter ``T'' substituted for the letter ``A'' or ``S'' in the 
specification marking.
[Amdt. 179-50, 60 FR 49077, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33256, June 26, 1996]



Subpart C--Specifications for Pressure Tank Car Tanks (Classes DOT-105, 
                           109, 112, and 114)



Sec. 179.100  General specification applicable to pressure tank car tanks.



Sec. 179.100-1  Tanks built under these specifications shall comply with the requirements of Secs. 179.100, 179.101 and when applicable, Secs. 179.102, 179.103, 
          and 179.104.



Sec. 179.100-3  Type.

    (a) Tanks built under this specification shall be fusion-welded with 
heads designed convex outward. Except as provided in Sec. 179.103 or 
Sec. 179.104 they shall be circular in cross section, shall be provided 
with a manway nozzle on top of the tank of sufficient size to permit 
access to the interior, a manway cover to provide for the mounting of 
all valves, measuring and sampling devices, and a protective housing. 
Other openings in the tank are prohibited, except as provided in part 
173 of this chapter, Secs. 179.100-14, 179.101-1 (a) Table Note 10, 
179.102 or Sec. 179.103.
    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21344, Nov. 6, 1971]



Sec. 179.100-4  Insulation.

    (a) If insulation is applied, the tank shell and manway nozzle must 
be insulated with an approved material. The entire insulation must be 
covered with a metal jacket of a thickness not less than 11 gauge 
(0.1196 inch) nominal (Manufacturers' Standard Gauge) and flashed around 
all openings so as to be weather-tight. The exterior surface of a carbon 
steel tank, and the inside surface of a carbon steel jacket must be 
given a protective coating.
    (b) If insulation is a specification requirement, it shall be of 
sufficient thickness so that the thermal conductance at 60 deg. F is not 
more than 0.075 Btu per hour, per square foot, per degree F temperature 
differential. If exterior heaters are attached to tank, the

[[Page 935]]

thickness of the insulation over each heater element may be reduced to 
one-half that required for the shell.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21344, Nov. 6, 1971; Amdt. 179-50, 60 
FR 49077, Sept. 21, 1995]



Sec. 179.100-6  Thickness of plates.

    (a) The wall thickness after forming of the tank shell and heads 
must not be less than that specified in Sec. 179.101, nor that 
calculated by the following formula:

                                t=Pd/2SE

where:

d=Inside diameter in inches;
E=1.0 welded joint efficiency; except for heads with seams=0.9;
P=Minimum required bursting pressure in p.s.i.;
S=Minimum tensile strength of plate material in p.s.i., as prescribed in 
Sec. 179.100-7;
t=Minimum thickness of plate in inches after forming.

    (b) If plates are clad with material having tensile strength 
properties at least equal to the base plate, the cladding may be 
considered a part of the base plate when determining thickness. If 
cladding material does not have tensile strength at least equal to the 
base plate, the base plate alone shall meet the thickness requirement.
    (c) When aluminum plate is used, the minimum width of bottom sheet 
of tank shall be 60 inches, measured on the arc, but in all cases the 
width shall be sufficient to bring the entire width of the longitudinal 
welded joint, including welds, above the bolster.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21344, Nov. 6, 1971]



Sec. 179.100-7  Materials.

    (a) Steel plate: Steel plate materials used to fabricate tank shell 
and manway nozzle must comply with one of the following specifications 
with the indicated minimum tensile strength and elongation in the welded 
condition. The maximum allowable carbon content must be 0.31 percent 
when the individual specification allows carbon greater than this 
amount. The plates may be clad with other approved materials.

------------------------------------------------------------------------
                                                              Minimum   
                                               Minimum     elongation in
                                               tensile       2 inches   
              Specifications                  strength       (percent)  
                                              (p.s.i.)        welded    
                                               welded        condition  
                                            condition\1\  (longitudinal)
------------------------------------------------------------------------
AAR TC128, Gr. B..........................      81,000             19   
ASTM A 302, Gr. B.........................      80,000             20   
ASTM A 516................................      70,000             20   
ASTM A 537, Class 1.......................      70,000            23    
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (b) Aluminum alloy plate: Aluminum alloy plate material used to 
fabricate tank shell and manway nozzle must be suitable for fusion 
welding and must comply with one of the following specifications with 
its indicated minimum tensile strength and elongation in the welded 
condition.

------------------------------------------------------------------------
                                                              Minimum   
                                                           elongation in
                                        Minimum tensile      2 inches   
           Specifications              strength (p.s.i.)    (percent) 0 
                                       0 temper, welded   temper, welded
                                      condition  \3\ \6\     condition  
                                                          (longitudinal)
------------------------------------------------------------------------
ASTM B 209, Alloy 5052  \1\.........          25,000                18  
ASTM B 209, Alloy 5083  \2\.........          38,000                16  
ASTM B 209, Alloy 5086  \1\.........          35,000                14  
ASTM B 209, Alloy 5154  \1\.........          30,000                18  
ASTM B 209, Alloy 5254  \1\.........          30,000                18  
ASTM B 209, Alloy 5454  \1\.........          31,000                18  
ASTM B 209, Alloy 5652  \1\.........          25,000               18   
------------------------------------------------------------------------
\1\ For fabrication, the parent plate material may be 0, H112, or H32   
  temper, but design calculations must be based on minimum tensile      
  strength shown.                                                       
\2\ 0 temper only.                                                      
\3\ Weld filler metal 5556 must not be used.                            
\4\ Maximum stress to be used in calculations.                          

    (c) High alloy steel plate. (1) High alloy steel plate must conform 
to the following specifications:

------------------------------------------------------------------------
                                               Minimum        Minimum   
                                               tensile     elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                            condition\1\  (longitudinal)
------------------------------------------------------------------------
ASTM A240, Type 304L......................        70,000             30 
ASTM A240, Type 316L......................        70,000             30 
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (2)(i) High alloy steels used to fabricate tank must be tested in 
accordance with the following procedures in ASTM Specification A262 
titled, ``Standard Practices for Detecting Susceptibility to 
Intergranular Attack in Austenitic Stainless Steel,'' and must

[[Page 936]]

exhibit corrosion rates not exceeding the following:

------------------------------------------------------------------------
                                                              Corrosion 
          Test procedures                   Material         rate i.p.m.
------------------------------------------------------------------------
Practice B.........................  Types 304L and 316L...       0.0040
Practice C.........................  Type 304L.............       0.0020
------------------------------------------------------------------------

    (ii) Type 304L and 316L test specimens must be given a sensitizing 
treatment prior to testing.
    (d) All attachments welded to tank shell must be of approved 
material which is suitable for welding to the tank.
[Amdt. 179-10, 36 FR 21344, Nov. 6, 1971, as amended by Amdt. 179-32, 48 
FR 27707, June 16, 1983; Amdt. 179-47, 58 FR 50237, Sept. 24, 1993; 
Amdt. 179-52, 61 FR 28679, June 5, 1996; Amdt 179-52, 61 FR 50255, Sept. 
25, 1996]



Sec. 179.100-8  Tank heads.

    (a) The tank head shape shall be an ellipsoid of revolution in which 
the major axis shall equal the diameter of the shell adjacent to the 
head and the minor axis shall be one-half the major axis.
    (b) Each tank head made from steel which is required to be ``fine 
grain'' by the material specification, which is hot formed at a 
temperature exceeding 1700 deg. F., must be normalized after forming by 
heating to a temperature between 1550 deg. and 1700 deg. F., by holding 
at that temperature for at least 1 hour per inch of thickness (30-minute 
minimum), and then by cooling in air. If the material specification 
requires quenching and tempering, the treatment specified in that 
specification must be used instead of the one specified above.
[29 FR 18995, Dec. 29, 1964. Redesignated, 32 FR 5606, Apr. 5, 1967 and 
amended by Amdt. 179-12, 39 FR 15038, Apr. 30, 1974]



Sec. 179.100-9  Welding.

    (a) All joints shall be fusion-welded in compliance with the 
requirements of AAR Specifications for Tank Cars, appendix W. Welding 
procedures, welders and fabricators shall be approved. Also see 
Sec. 179.104.
    (b) [Reserved]



Sec. 179.100-10  Postweld heat treatment.

    (a) After welding is complete, steel tanks and all attachments 
welded thereto must be postweld heat treated as a unit in compliance 
with the requirements of AAR Specifications for Tank Cars, appendix W.
    (b) For aluminum tanks, postweld heat treatment is prohibited.
    (c) Tank and welded attachments, fabricated from ASTM A 240 Type 
304L or Type 316L materials do not require postweld heat treatment, but 
these materials do require a corrosion resistance test as specified in 
Sec. 179.100-7(c)(2).
[Amdt. 179-10, 36 FR 21345, Nov. 6, 1971, as amended by Amdt. 179-47, 58 
FR 50238, Sept. 24, 1993; Amdt. 179-52, 61 FR 28679, June 5, 1996]



Sec. 179.100-12  Manway nozzle, cover and protective housing.

    (a) Manway nozzles must be of approved design of forged or rolled 
steel for steel tanks or of fabricated aluminum alloy for aluminum 
tanks, with access opening at least 18 inches inside diameter, or at 
least 14 inches by 18 inches around or oval. Nozzle must be welded to 
the tank and the opening reinforced in an approved manner in compliance 
with the requirements of AAR Specifications for Tank Cars, appendix E, 
Figure E10.
    (b) Manway cover shall be machined to approved dimensions and be of 
forged or rolled carbon or alloy steel, rolled aluminum alloy or nickel 
when required by the lading. Minimum thickness is listed in 
Sec. 179.101. Manway cover shall be attached to manway nozzle by through 
or stud bolts not entering tank, except as provided in Sec. 179.103-
2(a).
    (c) Except as provided in Sec. 179.103, protective housing of cast, 
forged or fabricated approved materials must be bolted to manway cover 
with not less than twenty \3/4\-inch studs. The shearing value of the 
bolts attaching protective housing to manway cover must not exceed 70 
percent of the shearing value of bolts attaching manway cover to manway 
nozzle. Housing must have steel sidewalls not less than three-fourths 
inch in thickness and must be equipped with a metal cover not less than 
one-fourth inch in thickness that can be securely closed. Housing cover 
must have suitable stop to prevent cover striking loading and unloading 
connections and be hinged on one side

[[Page 937]]

only with approved riveted pin or rod with nuts and cotters. Openings in 
wall of housing must be equipped with screw plugs or other closures.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21345, Nov. 6, 1971]



Sec. 179.100-13  Venting, loading and unloading valves, measuring and sampling devices.

    (a) Venting, loading and unloading valves must be of approved 
design, made of metal not subject to rapid deterioration by the lading, 
and must withstand the tank test pressure without leakage. The valves 
shall be bolted to seatings on the manway cover, except as provided in 
Sec. 179.103. Valve outlets shall be closed with approved screw plugs or 
other closures fastened to prevent misplacement.
    (b) The interior pipes of the loading and unloading valves shall be 
anchored and, except as prescribed in Sec. 179.102 or Sec. 179.103, may 
be equipped with excess flow valves of approved design.
    (c) Gauging device, sampling valve and thermometer well are not 
specification requirements. When used, they shall be of approved design, 
made of metal not subject to rapid deterioration by the lading, and 
shall withstand the tank test pressure without leakage. Interior pipes 
of the gauging device and sampling valve, except as prescribed in 
Sec. 179.102 or Sec. 179.103, may be equipped with excess flow valves of 
approved design. Interior pipe of the thermometer well shall be anchored 
in an approved manner to prevent breakage due to vibration. The 
thermometer well shall be closed by an approved valve attached close to 
the manway cover, or other approved location, and closed by a screw 
plug. Other approved arrangements that permit testing thermometer well 
for leaks without complete removal of the closure may be used.
    (d) An excess flow valve as referred to in this specification, is a 
device which closes automatically against the outward flow of the 
contents of the tank in case the external closure valve is broken off or 
removed during transit. Excess flow valves may be designed with a by-
pass to allow the equalization of pressures.
    (e) Bottom of tank shell may be equipped with a sump or siphon bowl, 
or both, welded or pressed into the shell. Such sumps or siphon bowls, 
if applied, are not limited in size and must be made of cast, forged or 
fabricated metal. Each sump or siphon bowl must be of good welding 
quality in conjunction with the metal of the tank shell. When the sump 
or siphon bowl is pressed in the bottom of the tank shell, the wall 
thickness of the pressed section must not be less than that specified 
for the shell. The section of a circular cross section tank to which a 
sump or siphon bowl is attached need not comply with the out-of-
roundness requirement specified in AAR Specifications for Tank Cars, 
appendix W, W14.06. Any portion of a sump or siphon bowl not forming a 
part of cylinder of revolution must have walls of such thickness and be 
so reinforced that the stresses in the walls caused by a given internal 
pressure are no greater than the circumferential stress which would 
exist under the same internal pressure in the wall of a tank of circular 
cross section designed in accordance with Sec. 179.100-6(a). In no case 
less than that specified in Sec. 179.101-1(a).
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21345, Nov. 6, 1971; Amdt. 179-40, 52 
FR 13046, Apr. 20, 1987; Amdt. 179-42, 54 FR 38798, Sept. 20, 1989]



Sec. 179.100-14  Bottom outlets.

    (a) Bottom outlets for discharge of lading is prohibited, except as 
provided in Sec. 179.103-3. If indicated in Sec. 179.101, tank may be 
equipped with a bottom washout of approved construction. If applied, 
bottom washout shall be in accordance with the following requirements.
    (1) The extreme projection of the bottom washout equipment may not 
be more than that allowed by appendix E of the AAR Specifications for 
Tank Cars.
    (2) Bottom washout shall be of cast, forged or fabricated metal and 
shall be fusion-welded to the tank. It shall be of good weldable quality 
in conjunction with metal of tank.
    (3) If the bottom washout nozzle extends 6 inches or more from shell 
of

[[Page 938]]

tank, a V-shaped breakage groove shall be cut (not cast) in the upper 
part of the outlet nozzle at a point immediately below the lowest part 
of the inside closure seat or plug. In no case may the nozzle wall 
thickness at the root of the ``V'' be more than \1/4\-inch. Where the 
nozzle is not a single piece, provision shall be made for the equivalent 
of the breakage groove. The nozzle must be of a thickness to insure that 
accidental breakage will occur at or below the ``V'' groove or its 
equivalent. On cars without continuous center sills, the breakage groove 
or its equivalent may not be more than 15 inches below the tank shell. 
On cars with continuous center sills, the breakage groove or its 
equivalent must be above the bottom of the center sill construction.
    (4) The closure plug and seat shall be readily accessible or 
removable for repairs.
    (5) The closure of the washout nozzle must be equipped with a \3/4\-
inch solid screw plug. Plug must be attached by at least a \1/4\-inch 
chain.
    (6) Joints between closures and their seats may be gasketed with 
suitable material.
    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21345, Nov. 6, 1971; Amdt. 179-40, 52 
FR 13046, Apr. 20, 1987]



Sec. 179.100-16  Attachments.

    (a) Reinforcing pads must be used between external brackets and 
shells if the attachment welds exceed 6 linear inches of \1/4\-inch 
fillet or equivalent weld per bracket or bracket leg. When reinforcing 
pads are used, they must not be less than one-fourth inch in thickness, 
have each corner rounded to a 1-inch minimum radius, and be attached to 
the tank by continuous fillet welds except for venting provisions. The 
ultimate shear strength of the bracket-to-reinforcing pad weld must not 
exceed 85 percent of the ultimate shear strength of the reinforcing pad-
to-tank weld.
    (b) Attachments not otherwise specified shall be applied by approved 
means.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21346, Nov. 6, 1971]



Sec. 179.100-17  Closures for openings.

    (a) Closures shall be of approved design and made of metal not 
subject to rapid deterioration by the lading. Plugs, if used, shall be 
solid, with NPT threads, and shall be of a length which will screw at 
least six threads inside the face of fitting or tank.
    (b) [Reserved]



Sec. 179.100-18  Tests of tanks.

    (a) Each tank shall be tested by completely filling tank and manway 
nozzle with water or other liquid having similar viscosity, at a 
temperature which shall not exceed 100 deg. F during the test; and 
applying the pressure prescribed in Sec. 179.101. The tank shall hold 
the prescribed pressure for at least 10 minutes without leakage or 
evidence of distress.
    (b) Insulated tanks shall be tested before insulation is applied.
    (c) Caulking of welded joints to stop leaks developed during the 
foregoing test is prohibited. Repairs in welded joints shall be made as 
prescribed in AAR specifications for Tank Cars, appendix W.
    (d) Testing of exterior heaters is not a specification requirement.



Sec. 179.100-19  Tests of safety relief valves.

    (a) Each valve shall be tested by air or gas for compliance with 
Sec. 179.15 before being put into service.
    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
as amended at 62 FR 51561, Oct. 1, 1997]



Sec. 179.100-20  Stamping.

    (a) To certify that the tank complies with all specification 
requirements, each tank shall be plainly and permanently stamped in 
letters and figures at least \3/8\ inch high into the metal near the 
center of both outside heads as follows:

[[Page 939]]



------------------------------------------------------------------------
                                            Example of required stamping
------------------------------------------------------------------------
Specification.............................  DOT-105A100W                
Material..................................  ASTM A 516                  
Cladding material (if any)................  ASTM A240-304               
Tank builder's initials...................  Clad                        
Date of original test.....................  ABC                         
Car assembler (if other than tanker         00-0000                     
 builder).                                  DEF                         
Water capacity............................  00000 lbs.                  
------------------------------------------------------------------------

    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21346, Nov. 6, 1971; Amdt. 179-52, 61 
FR 28679, June 5, 1996]



Sec. 179.101-1  Individual specification requirements.

    In addition to Sec. 179.100, the individual specification 
requirements are as follows:

[[Page 940]]



--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                              Minimum                                                                                   
                                                   Bursting    plate       Test      Manway                                                             
      DOT specification            Insulation      pressure  thickness   pressure    cover      Bottom outlet      Bottom washout   Reference  (179.***)
                                                    (psi)     (inches)    (psi)    thickness                                                            
--------------------------------------------------------------------------------------------------------------------------------------------------------
105A100ALW...................  Yes..............        500        5/8        100  \2\ 2 1/2  No...............  No...............                      
105A200ALW...................  Yes..............        500        5/8        200  \2\ 2 1/2  No...............  No...............                      
105A300ALW...................  Yes..............        750        5/8        300  \2\ 2 5/8  No...............  No...............                      
105A100W.....................  Yes..............        500   \3\ 9/16        100      2 1/4  No...............  No...............                      
105A200W.....................  Yes..............        500   \3\ 9/16        200      2 1/4  No...............  No...............                      
105A300W.....................  Yes..............        750  \1\ 11/16        300  \7\ 2 1/4  No...............  No...............                      
105A400W.....................  Yes..............      1,000  \1\ 11/16        400  \7\ 2 1/4  No...............  No...............                      
105A500W.....................  Yes..............      1,250  \1\ 11/16        500      2 1/4  No...............  No...............  102-1, 102-2.       
105A600W.....................  Yes..............      1,500  \1\ 11/16        600      2 1/4  No...............  No...............  102-4, 102-17.      
109A100ALW...................  Optional.........        500        5/8        100  \2\ 2 1/2  No...............  Optional.........                      
109A200ALW...................  Optional.........        500        5/8        200  \2\ 2 1/2  No...............  Optional.........                      
109A300ALW...................  Optional.........        750        5/8        300  \2\ 2 5/8  No...............  Optional.........                      
109A300W.....................  Optional.........        500  \1\ 11/16        300      2 1/4  No...............  Optional.........                      
112A200W.....................  Optional \4\.....        500  \3\ \5\ 9/       200      2 1/4  No...............  No...............                      
                                                                    16                                                                                  
112A340W.....................  Optional \4\.....        850  \1\ 11/16        340      2 1/4  No...............  No...............                      
112A400W.....................  Optional \4\.....      1,000  \1\ 11/16        400      2 1/4  No...............  No...............                      
112A500W.....................  Optional \4\.....      1,250  \1\ 11/16        500      2 1/4  No...............  No...............                      
114A340W.....................  Optional \4\.....        850  \1\ 11/16        340        \6\  Optional.........  Optional.........  103.                
114A400W.....................  Optional \4\.....      1,000  \1\ 11/16        400        \6\  Optional.........  Optional.........  103.                
120A200ALW...................  Yes..............        500        5/8        200  \2\ 2 1/2  Optional.........  Optional.........  103.                
120A100W.....................  Yes..............        500   \3\ 9/16        100      2 1/4  Optional.........  Optional.........  103.                
120A200W.....................  Yes..............        500   \3\ 9/16        200      2 1/4  Optional.........  Optional.........  103.                
120A300W.....................  Yes..............        750  \1\ 11/16        300      2 1/4  Optional.........  Optional.........  103.                
120A400W.....................  Yes..............      1,000  \1\ 11/16        400      2 1/4  Optional.........  Optional.........  103.                
120A500W.....................  Yes..............      1,250  \1\ 11/16        500      2 1/4  Optional.........  Optional.........  103.                
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ When steel of 65,000 to 81,000 p.s.i. minimum tensile strength is used, the thickness of plates shall be not less than 5/8 inch, and when steel of  
  81,000 p.s.i. minimum tensile strength is used, the minimum thickness of plate shall be not less than 9/16 inch.                                      
\2\ When approved material other than aluminum alloys are used, the thickness shall be not less than 2 1/4 inches.                                      
\3\ When steel of 65,000 p.s.i. minimum tensile strength is used, minimum thickness of plates shall be not less than 1/2 inch.                          
\4\ Tank cars not equipped with a thermal protection or an insulation system used for the transportation of a Class 2 (compressed gas) material must    
  have at least the upper two-thirds of the exterior of the tank, including manway nozzle and all appurtenances in contact with this area, finished with
  a reflective coat of white paint.                                                                                                                     
\5\ For inside diameter of 87 inches or less, the thickness of plates shall be not less than 1/2 inch.                                                  
\6\ See AAR specifications for tank cars, Appendix E, E4.01 and Sec.  179.103-2.                                                                        
\7\ When the use of nickel is required by the lading, the thickness shall not be less than two inches.                                                  


                                                                                                                                                        
                                                                                                                                                        
                                                                                                                                                        
[Amdt. 179-52, 61 FR 28679, June 5, 1996]                                                                                                               
                                                                                                                                                        


[[Page 941]]



Sec. 179.102  Special commodity requirements for pressure tank car tanks.

    (a) In addition to Secs. 179.100 and 179.101 the following 
requirements are applicable:
    (b) [Reserved]



Sec. 179.102-1  Carbon dioxide, refrigerated liquid.

    (a) Tank cars used to transport carbon dioxide, refrigerated liquid 
must comply with the following special requirements:
    (1) All plates for tank, manway nozzle and anchorage of tanks must 
be made of carbon steel complying with ASTM Specification A 516, Grades 
55, 60, 65, or 70, or AAR Specification TC128-78, Grade B. The ASTM A516 
plate must also meet the Charpy V-Notch test requirements of ASTM A20-
79b (see Table 16) in the longitudinal direction of rolling. The TC128 
plate must also meet the Charpy V-Notch energy absorption requirements 
of 15 ft-lb minimum average for 3 specimens and 10 ft-lb minimum for one 
specimen at minus 50 deg. F in the longitudinal direction of rolling in 
accord with ASTM Specification A 370. Production-welded test plates 
prepared as required by W4.00 of AAR Specifications for Tank Cars, 
appendix W, must include impact test specimens of weld metal and heat-
affected zone. As an alternate, anchor legs may be fabricated of 
stainless steel, ASTM Specification A 240 Types 304, 304L, 316 or 316L 
for which impact tests are not required.
    (2)--(6) [Reserved]
    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21347, Nov. 6, 1971; Amdt. 179-28, 46 
FR 49906, Oct. 8, 1981; 46 FR 55266, Nov. 9, 1981; Amdt. 179-32, 48 FR 
50440, 50441, Nov. 1, 1983; 49 FR 42736, Oct. 24, 1984; Amdt. 179-45, 55 
FR 52728, Dec. 21, 1990; Amdt. 179-52, 61 FR 28680, June 5, 1996]



Sec. 179.102-2  Chlorine.

    (a) Each tank car used to transport chlorine must comply with all of 
the following:
    (1) Tanks must be fabricated from carbon steel complying with ASTM 
Specification A 516, Grade 70, or AAR Specification TC-128, Grade A or 
B.
    (2)-(3) [Reserved]
    (b) [Reserved]
[Amdt. 179-7, 36 FR 14697, Aug. 10, 1971; Amdt. 179-10, 36 FR 21346, 
Nov. 6, 1971, as amended by Amdt. 179-25, 44 FR 20433, Apr. 5, 1979; 
Amdt. 179-40, 52 FR 13046, Apr. 20, 1987; Amdt. 179-45, 55 FR 52728, 
Dec. 21, 1990; Amdt. 179-52, 61 FR 28680, June 5, 1996]



Sec. 179.102-4  Vinyl fluoride, inhibited.

    Each tank used to transport vinyl fluoride, inhibited, must comply 
with the following special requirements:
    (a) All plates for the tank must be fabricated of material listed in 
paragraph (b)(2) of this section, and appurtenances must be fabricated 
of material listed in paragraph (b)(1) or (b)(2) of this section.
    (1) Stainless steel, ASTM Specification A240, Type 304, 304L, 316 or 
316L, in which case impact tests are not required; or
    (2) Steel complying with ASTM Specification A516; Grade 70; ASTM 
Specification A537, Class 1; or AAR Specification TC128, Grade B, in 
which case impact tests must be performed as follows:
    (i) ASTM Specification A516 and A537 material must meet the Charpy 
V-notch test requirements, in longitudinal direction of rolling, of ASTM 
Specification A20.
    (ii) AAR Specification TC128 material must meet the Charpy V-notch 
test requirements, in longitudinal direction of rolling, of 15 ft.-lb. 
minimum average for 3 specimens, with a 10 ft.-lb. minimum for any one 
specimen, at minus 50 deg. F. or colder, in accordance with ASTM 
Specification A 370.
    (iii) Production welded test plates must--
    (A) Be prepared in accordance with AAR Specifications for Tank Cars, 
appendix W, W4.00;
    (B) Include impact specimens of weld metal and heat affected zone 
prepared and tested in accordance with AAR Specifications for Tank Cars, 
appendix W, W9.00; and
    (C) Meet the same impact requirements as the plate material.
    (b) Insulation must be of approved material.
    (c) Excess flow valves must be installed under all liquid and vapor 
valves, except safety relief valves.

[[Page 942]]

    (d) A thermometer well may be installed.
    (e) Only an approved gaging device may be installed.
    (f) A pressure gage may be installed.
    (g) Aluminum, copper, silver, zinc, or an alloy containing any of 
these metals may not be used in the tank construction, or in fittings in 
contact with the lading.
    (h) The jacket must be stenciled, adjacent to the water capacity 
stencil, ``MINIMUM OPERATING TEMPERATURE ----  deg. F.''
    (i) The tank car and insulation must be designed to prevent the 
vapor pressure of the lading from increasing from the pressure at the 
maximum allowable filling density to the start-to-discharge pressure of 
the safety relief valve within 30 days, at an ambient temperature of 
90 deg. F.
[Amdt. 179-32, 48 FR 27707, June 16, 1983, as amended at 49 FR 24317, 
June 12, 1984; 49 FR 42736, Oct. 24, 1984; Amdt. 179-45, 55 FR 52728, 
Dec. 21, 1990; Amdt. 179-52, 61 FR 28680, June 5, 1996]



Sec. 179.102-17  Hydrogen chloride, refrigerated liquid.

    Each tank car used to transport hydrogen chloride, refrigerated 
liquid must comply with the following special requirements:
    (a) The tank car must comply with Specification DOT-105J600W and be 
designed for loading at minus 50 deg. F. or colder.
    (b) All plates for the tank must be fabricated of material listed in 
paragraph (b)(2) of this section, and appurtenances must be fabricated 
of material listed in paragraph (b)(1) or (b)(2) of this section.
    (1) Stainless steel, ASTM Specification A240, Type 304, 304L, 316, 
or 316L, in which case impact tests are not required; or
    (2) Steel complying with ASTM Specification A516, Grade 70; ASTM 
Specification A537, Class 1; or AAR Specification TC128, Grade B, in 
which case impact tests must be performed as follows:
    (i) ASTM Specification A516 and A537 material must meet the Charpy 
V-notch test requirements, in longitudinal direction of rolling, of ASTM 
Specification A20.
    (ii) AAR Specification TC128 material must meet the Charpy V-notch 
test requirements, in longitudinal direction of rolling of 15 ft.-lb. 
minimum average for 3 specimens, with a 10 ft.-lb. minimum for any one 
specimen, at minus 50 deg. F. or colder, in accordance with ASTM 
Specification A 370.
    (iii) Production welded test plates must--
    (A) Be prepared in accordance with AAR Specifications for Tank Cars, 
appendix W, W4.00;
    (B) include impact test specimens of weld metal and heat affected 
zone prepared and tested in accordance with AAR Specifications for Tank 
Cars, appendix W, W9.00; and
    (C) meet the same impact requirements as the plate material.
    (c) Insulation must be of approved material.
    (d) Safety relief valves must be trimmed with monel or other 
approved material and equipped with a frangible disc of silver, 
polytetrafluoroethylene coated monel, or tantalum. Each safety relief 
device shall have the space between the frangible disc and the relief 
valve vented with a suitable auxiliary valve. The discharge from each 
safety relief valve must be directed outside the protective housing.
    (e) Loading and unloading valves must be trimmed with Hastelloy B or 
C, monel, or other approved material, and identified as ``Vapor'' or 
``Liquid''. Excess flow valves must be installed under all liquid and 
vapor valves, except safety relief valves.
    (f) A thermometer well may be installed.
    (g) Only an approved gaging device may be installed.
    (h) A sump must be installed in the bottom of the tank under the 
liquid pipes.
    (i) All gaskets must be made of, or coated with, 
polytetrafluoroethylene or other approved material.
    (j) The tank car tank may be equipped with exterior cooling coils on 
top of the tank car shell.
    (k) The jacket must be stenciled, adjacent to the water capacity 
stencil,

    MINIMUM OPERATING TEMPERATURE ----  deg. F.

    (l) The tank car and insulation must be designed to prevent the 
pressure of

[[Page 943]]

the lading from increasing from the pressure at the maximum allowable 
filling density to the start-to-discharge pressure of the safety relief 
valve within 30 days, at an ambient temperature of 90 deg. F.
[Amdt. 179-32, 48 FR 27708, June 16, 1983, as amended at 48 FR 50441, 
Nov. 1, 1983; 49 FR 24317, June 12, 1984; 49 FR 42736, Oct. 24, 1984; 
Amdt. 179-45, 55 FR 52728, Dec. 21, 1990]



Sec. 179.103  Special requirements for class 114A * * * tank car tanks.

    (a) In addition to the applicable requirements of Secs. 179.100 and 
179.101 the following requirements shall be complied with:
    (b) [Reserved]



Sec. 179.103-1  Type.

    (a) Tanks built under this section may be of any approved cross 
section.
    (b) Any portion of the tank shell not circular in cross section 
shall have walls of such thickness and be so reinforced that the 
stresses in the walls caused by a given internal pressure are no greater 
than the circumferential stresses which would exist under the same 
internal pressure in the wall of a tank of circular cross section 
designed in accordance with paragraphs Sec. 179.100-6 (a) and (b), but 
in no case shall the wall thickness be less than that specified in 
Sec. 179.101.
    (c)  [Reserved]
    (d) Valves and fittings need not be mounted on the manway cover.
    (e) One opening may be provided in each head for use in purging the 
tank interior.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-50, 60 FR 49077, Sept. 21, 1995]



Sec. 179.103-2  Manway cover.

    (a) The manway cover must be an approved design.
    (b) If no valves or measuring and sampling devices are mounted on 
manway cover, no protective housing is required.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-50, 60 FR 49077, Sept. 21, 1995]



Sec. 179.103-3  Venting, loading and unloading valves, measuring and sampling devices.

    (a) Venting, loading and unloading valves, measuring and sampling 
devices, when used, shall be attached to a nozzle or nozzles on the tank 
shell or heads.
    (b) These valves and appurtenances must be grouped in one location 
and, except as provided in Sec. 179.103-5, must be equipped with a 
protective housing with cover, or may be recessed into tank shell with 
cover. An additional set grouped in another location may be provided. 
Protective housing with cover, when used, must have steel sidewalls not 
less than three-fourths inch in thickness and a metal cover not less 
than one-fourth inch in thickness that can be securely closed. 
Underframe sills are an acceptable alternate to the protective housing 
cover, provided the arrangement is of approved design. For fittings 
recessed into tank shell, protective cover must be metal and not less 
than one-fourth inch in thickness.
    (c) When tank car is used to transport liquefied flammable gases, 
the interior pipes of the loading, unloading, and sampling valves must 
be equipped with excess flow valves of approved design except when quick 
closing internal valves of approved design are used. When the interior 
pipe of the gaging device provides a means for the passage of lading 
from the interior to the exterior of the tank, it must be equipped with 
an excess flow valve of approved design or with an orifice not exceeding 
0.060 inch.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21348, Nov. 6, 1971]



Sec. 179.103-4  Safety relief devices and pressure regulators.

    (a) Safety relief devices and pressure regulators must be located on 
top of the tank near the center of the car on a nozzle, mounting plate 
or recess in the shell. Through or stud bolts, if used, must not enter 
the tank.
    (b) Metal guard of approved design must be provided to protect 
safety relief devices and pressure regulators from damage.
[Amdt. 179-10, 36 FR 21348, Nov. 6, 1971]

[[Page 944]]



Sec. 179.103-5  Bottom outlets.

    (a) In addition to or in place of the venting, loading and unloading 
valves, measuring and sampling devices as prescribed in Sec. 179.103-3, 
tanks may be equipped with approved bottom outlet valves. If applied, 
bottom outlet valves must meet the following requirements:
    (1) On cars with center sills, a ball valve may be welded to the 
outside bottom of the tank or mounted on a pad or nozzle with a tongue 
and groove or male and female flange attachment, but in no case shall 
the breakage groove or equivalent extend below the bottom flange of the 
center sill. On cars without continuous center sills, a ball valve may 
be welded to the outside bottom of the tank or mounted with a tongue and 
groove or male and female flange attachment on a pad attached to the 
outside bottom of the tank. The mounting pad must have a maximum 
thickness of 2\1/2\ inches measured on the longitudinal centerline of 
the tank. The valve operating mechanism must be provided with a suitable 
locking arrangement to insure positive closure during transit.
    (2) When internal bottom outlet valve is used in liquefied flammable 
gas service, the outlet of the valve must be equipped with an excess 
flow valve of approved design, except when a quick-closing internal 
valve of approved design is used. Protective housing is not required.
    (3) Bottom outlet must be equipped with a liquid tight closure at 
its lower end.
    (b) Bottom outlet equipment must be of approved design and must meet 
the following requirements:
    (1) The extreme projection of the bottom outlet equipment may not be 
more than allowed by appendix E of the AAR Specifications for Tank Cars. 
All bottom outlet reducers and closures and their attachments shall be 
secured to car by at least \3/8\-inch chain, or its equivalent, except 
that bottom outlet closure plugs may be attached by \1/4\-inch chain. 
When the bottom outlet closure is of the combination cap and valve type, 
the pipe connection to the valve shall be closed by a plug, cap, or 
approved quick coupling device. The bottom outlet equipment should 
include only the valve, reducers and closures that are necessary for the 
attachment of unloading fixtures. The permanent attachment of 
supplementary exterior fittings must be approved by the AAR Committee on 
Tank Cars.
    (2) To provide for the attachment of unloading connections, the 
discharge end of the bottom outlet nozzle or reducer, the valve body of 
the exterior valve, or some fixed attachment thereto, shall be provided 
with one of the following arrangements or an approved modification 
thereof. (See appendix E. Fig. E17 of the AAR Specifications for Tank 
Cars for illustrations of some of the possible arrangements.)
    (i) A bolted flange closure arrangement including a minimum 1-inch 
NPT pipe plug (see Fig. E17.1) or including an auxiliary valve with a 
threaded closure.
    (ii) A threaded cap closure arrangement including a minimum 1-inch 
NPT pipe plug (see Fig. E17.2) or including an auxiliary valve with a 
threaded closure.
    (iii) A quick-coupling device using a threaded plug closure of at 
least 1-inch NPT or having a threaded cap closure with a minimum 1-inch 
NPT pipe plug (see Fig. E17.3 through E17.5). A minimum 1-inch auxiliary 
test valve with a threaded closure may be substituted for the 1-inch 
pipe plug (see Fig E17.6). If the threaded cap closure does not have a 
pipe plug or integral auxiliary test valve, a minimum 1-inch NPT pipe 
plug shall be installed in the outlet nozzle above the closure (see Fig. 
E17.7).
    (iv) A two-piece quick-coupling device using a clamped dust cap must 
include an in-line auxiliary valve, either integral with the quick-
coupling device or located between the primary bottom outlet valve and 
the quick-coupling device. The quick-coupling device closure dust cap or 
outlet nozzle shall be fitted with a minimum 1-inch NPT closure (see 
Fig. E17.8 and E17.9).
    (3) The valve operating mechanism must be provided with a suitable 
locking arrangement to insure positive closure during transit.
    (4) If the outlet nozzle extends 6 inches or more from shell of 
tank, a V-shaped breakage groove shall be cut (not cast) in the upper 
part to the outlet nozzle at a point immediately below

[[Page 945]]

the lowest part of value closest to the tank. In no case may the nozzle 
wall thickness at the roof of the ``V'' be more than \1/4\-inch. On cars 
without continuous center sills, the breakage groove or its equivalent 
may not be more than 15 inches below the tank shell. On cars with 
continuous center sills, the breakage groove or its equivalent must be 
above the bottom of the center sill construction.
    (5) The valve body must be of a thickness which will insure that 
accidental breakage of the outlet nozzle will occur at or below the 
``V'' groove, or its equivalent, and will not cause distortion of the 
valve seat or valve.
[Amdt. 179-10, 36 FR 21348, Nov. 6, 1971, as amended by Amdt. 179-40, 52 
FR 13046, Apr. 20, 1987; Amdt. 179-41, 52 FR 36672, Sept. 30, 1987; 
Amdt. 179-50, 60 FR 49077, Sept. 21, 1995; Amdt. 179-52, 61 FR 28680, 
June 5, 1996; Amdt. 179-53, 61 FR 51342, Oct. 1, 1996]



 Subpart D--Specifications for Non-Pressure Tank Car Tanks (Classes DOT-
                   103, 104, 111AF, 111AW, and 115AW)



Sec. 179.200  General specifications applicable to non-pressure tank car tanks (Classes DOT-103, 104, and 111).



Sec. 179.200-1  Tank built under these specifications must meet the requirements of Secs. 179.200, 179.201 and when applicable Sec. 179.202.



Sec. 179.200-3  Type.

    Tank built under these specifications must be circular in cross 
section, with formed heads designed convex outward. When specified in 
Sec. 179.201-1, the tank must have at least one manway or one expansion 
dome with manway, and such other external projections as are prescribed 
herein. When the tank is divided into compartments, each compartment 
must be treated as a separate tank.
[Amdt. 179-10, 36 FR 21348, Nov. 6, 1971]



Sec. 179.200-4  Insulation.

    (a) If insulation is applied, the tank shell and expansion dome when 
used must be insulated with an approved material. The entire insulation 
must be covered with a metal jacket of a thickness not less than 11 
gauge (0.1196 inch) nominal (Manufacturer's Standard Gauge) and flashed 
around all openings so as to be weather tight. The exterior surface of a 
carbon steel tank and the inside surface of a carbon steel jacket must 
be given a protection coating.
    (b) If insulation is a specification requirement, it shall be of 
sufficient thickness so that the thermal conductance at 60 deg. F is not 
more than 0.225 Btu per hour, per square foot, per degree F temperature 
differential, unless otherwise provided in Sec. 179.201-1. If exterior 
heaters are attached to tank, the thickness of the insulation over each 
heater element may be reduced to one-half that required for the shell.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21349, Nov. 6, 1971; Amdt. 179-50, 60 
FR 49078, Sept. 21, 1995]



Sec. 179.200-6  Thickness of plates.

    (a) The wall thickness after forming of the tank shell, dome shell, 
and of 2:1 ellipsoidal heads must be not less than specified in 
Sec. 179.201-1, nor that calculated by the following formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.032

where:

d=Inside diameter in inches;
E=0.9 Welded joint efficiency; except E=1.0 for seamless heads;
P=Minimum required bursting pressure in p.s.i.;
S=Minimum tensile strength of plate material in p.s.i. as prescribed in 
Sec. 179.200-7;
t=Minimum thickness of plate in inches after forming.

    (b) The wall thickness after forming of 3:1 ellipsoidal heads must 
be not less than specified in Sec. 179.201-1, nor that calculated by the 
following formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.033

where:

d=Inside diameter in inches;
E=0.9 Welded joint efficiency; except E=1.0 for seamless heads;
P=Minimum required bursting pressure in p.s.i.;
S=Minimum tensile strength of plate material in p.s.i. as prescribed in 
Sec. 179.200-7;

[[Page 946]]

t=Minimum thickness of plate in inches after forming.

    (c) The wall thickness after forming of a flanged and dished head 
must be not less than specified in Sec. 179.201-1, nor that calculated 
by the following formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.034

where:

E=0.9 Welded joint efficiency; except E=1.0 for seamless heads;
L=Main inside radius to which head is dished, measured on concave side 
in inches;
P=Minimum required bursting pressure in p.s.i.;
S=Minimum tensile strength of plate material in p.s.i. as prescribed in 
Sec. 179.200-7;
t=Minimum thickness of plate in inches after forming.

    (d) If plates are clad with material having tensile strength 
properties at least equal to the base plate, the cladding may be 
considered a part of the base plate when determining thickness. If 
cladding material does not have tensile strength at least equal to the 
base plate, the base plate alone must meet the thickness requirements.
    (e) For a tank constructed of longitudinal sections, the minimum 
width of bottom sheet of the tank must be 60 inches measured on the arc, 
but in all cases the width must be sufficient to bring the entire width 
of the longitudinal welded joint, including welds, above the bolster.
    (f) For a tank built of one piece cylindrical sections, the 
thickness specified for bottom sheet must apply to the entire 
cylindrical section.
    (g) See Sec. 179.200-9 for thickness requirements for a 
compartmented tank.
[Amdt. 179-10, 36 FR 21349, Nov. 6, 1971]



Sec. 179.200-7  Materials.

    (a) Plate material used to fabricate the tank and, when used, 
expansion dome or manway nozzle material, must meet one of the following 
specifications with the indicated minimum tensile strength and 
elongation in the welded condition.
    (b) Carbon steel plate: The maximum allowable carbon content must be 
0.31 percent when the individual specification allows carbon content 
greater than this amount. The plates may be clad with other approved 
materials:

------------------------------------------------------------------------
                                              Minimum         Minimum   
                                              tensile      elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                           condition \1\  (longitudinal)
------------------------------------------------------------------------
AAR TC 128, Gr. B........................       81,000             19   
ASTM A 516, Gr. 70.......................       70,000             20   
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (c) Aluminum alloy plate: Aluminum alloy plate must be suitable for 
welding and comply with one of the following specifications:

------------------------------------------------------------------------
                                                              Minimum   
                                                           elongation in
                                        Minimum tensile      2 inches   
            Specifications             strength (p.s.i.)    (percent) 0 
                                        welded condition    temper weld 
                                            \3\ \6\            metal    
                                                          (longitudinal)
------------------------------------------------------------------------
ASTM B 209, Alloy 5052  \1\..........          25,000               18  
ASTM B 209, Alloy 5083  \2\..........          38,000               16  
ASTM B 209, Alloy 5086  \1\..........          35,000               14  
ASTM B 209, Alloy 5154  \1\..........          30,000               18  
ASTM B 209, Alloy 5254  \1\..........          30,000               18  
ASTM B 209, Alloy 5454  \1\..........          31,000               18  
ASTM B 209, Alloy 5652  \1\..........          25,000               18  
------------------------------------------------------------------------
\1\ For fabrication, the parent plate material may be 0, H112, or H32   
  temper, but design calculations must be based on minimum tensile      
  strength shown.                                                       
\2\ 0 temper only.                                                      
\3\ Weld filler metal 5556 must not be used.                            
\4\ Maximum stresses to be used in calculations.                        

    (d) High alloy steel plate: High alloy steel plate must comply with 
one of the following specifications:

------------------------------------------------------------------------
                                              Minimum         Minimum   
                                              tensile      elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                           condition \1\  (longitudinal)
------------------------------------------------------------------------
ASTM A 240, Type 304.....................        75,000             30  
ASTM A 240, Type 304L....................        70,000             30  
ASTM A 240, Type 316.....................        75,000             30  
ASTM A 240, Type 316L....................        70,000             30  
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        
\2\ High alloy steel materials used to fabricate tank and expansion     
  dome, when used, must be tested in accordance with Practice A of ASTM 
  Specification A 262 titled, 'Standard Practices for Detecting         
  Susceptibility to Intergranular Attack in Austenitic Stainless        
  Steels.' If the specimen does not pass Practice A, Practice B or C    
  must be used and the corrosion rates may not exceed the following:    


------------------------------------------------------------------------
                                                               Corrosion
           Test procedure                    Material            rate   
                                                                i.p.m.  
------------------------------------------------------------------------
Practice B..........................  Types 304, 304L, 316,       0.0040
                                       and 316L.                        

[[Page 947]]

                                                                        
Practice C..........................  Type 304L.............       .0020
------------------------------------------------------------------------
Type 304L and Type 316L test specimens must be given a sensitizing      
  treatment prior to testing. (A typical sensitizing treatment is 1 hour
  at 1250 F.)                                                           

    (e) Nickel plate: Nickel plate must comply with the following 
specification:

------------------------------------------------------------------------
                                              Minimum         Minimum   
                                              tensile      elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                           condition \1\  (longitudinal)
------------------------------------------------------------------------
ASTM B 1622  \2\.........................        40,000             20  
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        
\2\ When used as cladding for carbon steel plate, low-carbon nickel is  
  required.                                                             

    (f) Manganese-molybdenum steel plate: Manganese-molybdenum steel 
plate must be suitable for fusion welding and comply with the following 
specification:

------------------------------------------------------------------------
                                              Minimum         Minimum   
                                              tensile      elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                           condition \1\  (longitudinal)
------------------------------------------------------------------------
ASTM A 302, Gr. B........................        80,000             20  
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (g) All parts and items of construction in contact with the lading 
must be made of material compatible with plate material and not subject 
to rapid deterioration by the lading, or be coated or lined with 
suitable corrosion resistant material.
    (h) All external projections which may be in contact with the lading 
and all castings, forgings, or fabrications used for fittings or 
attachments to tank and expansion dome, when used, in contact with 
lading must be made of material to an approved specification. See AAR 
Specification for Tank Cars, appendix M, M4.05 for approved material 
specifications for castings for fittings.
[Amdt. 179-10, 36 FR 21349, Nov. 9, 1971; 36 FR 21893, Nov. 17, 1971, as 
amended by Amdt.179-28, 46 FR 49906, Oct. 8, 1981; Amdt. 179-40, 52 FR 
13046, Apr. 20, 1987; Amdt. 179-52, 61 FR 28680, June 5, 1996]



Sec. 179.200-8  Tank heads.

    (a) All external tank heads must be an ellipsoid of revolution in 
which the major axis must equal the diameter of the shell and the minor 
axis must be one-half the major axis.
    (b) Internal compartment tank heads may be 2:1 ellipsoidal, 3:1 
ellipsoidal, or flanged and dished to thicknesses as specified in 
Sec. 179.200-6. Flanged and dished heads must have main inside radius 
not exceeding 10 feet, and inside knuckle radius must not be less than 
3\3/4\ inches for steel, alloy steel, or nickel tanks, and not less than 
5 inches for aluminum alloy tanks.
[Amdt. 179-10, 36 FR 21350, Nov. 6, 1971]



Sec. 179.200-9  Compartment tanks.

    (a) When a tank is divided into compartments, by inserting interior 
heads, interior heads must be inserted in accordance with AAR 
Specifications for Tank Cars, appendix E, E7.00, and must comply with 
the requirements specified in Sec. 179.2011-1. Voids between compartment 
heads must be provided with at least one tapped drain hole at their 
lowest point, and a tapped hole at the top of the tank. Top hole must be 
closed, and the bottom hole may be closed, with not less than three-
fourths inch nor more than 1\1/2\-inches solid pipe plugs having NPT 
threads.
    (b) When the tank is divided into compartments by construction each 
compartment as a separate tank, these tanks shall be joined together by 
a cylinder made of plate, having a thickness not less than that required 
for the tank shell and applied to the outside surface of tank head 
flanges. The cylinder shall fit the straight flange portion of the 
compartment tank head tightly. The cylinder shall contact the head 
flange for a distance of at least two times the plate thickness, or a 
minimum of 1 inch, whichever is greater. The cylinder shall be joined to 
the head flange by a full fillet weld. Distance from head seam to 
cylinder shall not be less than 1\1/2\ inches or three times the plate 
thickness, whichever is greater. Voids created by the space between 
heads of tanks joined together to form a compartment tank shall be 
provided with a tapped drain hole at their lowest point and a tapped 
hole at top of tank. The

[[Page 948]]

top hole shall be closed and the bottom hole may be closed with solid 
pipe plugs not less than \3/4\ inch nor more than 1\1/2\ inches having 
NPT threads.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21350, Nov. 6, 1971]



Sec. 179.200-10  Welding.

    (a) All joints shall be fusion-welded in compliance with the 
requirements of AAR Specifications for Tank Cars, appendix W. Welding 
procedures, welders and fabricators shall be approved.
    (b) Welding is not permitted on or to ductile iron or malleable iron 
fittings.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21350, Nov. 6, 1971]



Sec. 179.200-11  Postweld heat treatment.

    After welding is complete, postweld heat treatment must be in 
compliance with the requirements of AAR Specifications for Tank Cars, 
appendix W, when specified in Sec. 179.201.1.
[Amdt. 179-10, 36 FR 21350, Nov. 6, 1971]



Sec. 179.200-13  Manway ring or flange, safety relief device flange, bottom outlet nozzle flange, bottom washout nozzle flange and other attachments and 
          openings.

    (a) These attachments shall be fusion welded to the tank and 
reinforced in an approved manner in compliance with the requirements of 
appendix E, figure 10, of the AAR Specifications for Tank Cars.
    (b) The opening in the manway ring must be at least 16 inches in 
diameter except that acid resistant lined manways must be at least 18 
inches in diameter before lining.
    (c) The manway ring or flange, shall be made of cast, forged or 
fabricated metal. The metal of the dome, tank, or nozzle must be 
compatible with the manway ring or flange, so that they may be welded 
together.
    (d) The openings for the manway or other fittings shall be 
reinforced in an approved manner.
[Amdt. 179-40, 52 FR 13047, Apr. 20, 1987]



Sec. 179.200-14  Expansion capacity.

    (a) Tanks shall have expansion capacity as prescribed in this 
subchapter. This capacity shall be provided in the tank for Class DOT-
111A cars, or in a dome for Class DOT-103 and 104 type cars.
    (b) For tank cars having an expansion dome, the expansion capacity 
is the total capacity of the tank and dome combined. The capacity of the 
dome shall be measured from the inside top of shell of tank to the 
inside top of dome or bottom of any vent pipe projecting inside of dome, 
except that when safety relief device is applied to side of dome, the 
effective capacity of the dome shall be measured from top of safety 
relief device opening inside of dome to inside top of shell of tank.
    (c) The opening in the tank shell within the dome shall be at least 
29 inches in diameter. When the opening in the tank shell exceeds 30 
inches in diameter, the opening shall be reinforced in an approved 
manner. This additional reinforcement may be accomplished by the use of 
a dome opening of the flued-type as shown in appendix E, Figure E 10C of 
the AAR Specification for Tank Cars or by the use of reinforcing as 
outlined in Appendix E, E3.04 and Figures E10K and E10L. When the 
opening in the tank shell is less than the inside diameter of the dome, 
and the dome pocket is not closed off in an approved manner, dome pocket 
drain holes shall be provided in the tank shell with nipples projecting 
inside the tank at least 1-inch.
    (d) The dome head shall be of approved contour and shall be designed 
for pressure on concave side.
    (e) Aluminum alloy domes: (1) The dome shell thickness shall be 
calculated by the formula in Sec. 179.200-6(a).
    (2) The dome head may be an ellipsoid of revolution in which the 
major axis shall be equal to the diameter of the dome shall and the 
minor axis shall be one-half the major axis. The thickness in this case 
shall be determined by using formula in Sec. 179.200-6(a).
    (3) The dome head, if dished, must be dished to a radius not 
exceeding 96 inches. Thickness of dished dome head must be calculated by 
the formula in Sec. 179.200-6(c).
    (4) Tank shell shall be reinforced by the addition of a plate equal 
to or greater than shell in thickness and the cross sectional area shall 
exceed metal

[[Page 949]]

removed for dome opening, or tank shell shall be reinforced by a 
seamless saddle plate equal to or greater than shell in thickness and 
butt welded to tank shell. The reinforcing saddle plate shall be 
provided with a fluid opening having a vertical flange of the diameter 
of the dome for butt welding shell of dome to the flange. The 
reinforcing saddle plate shall extend about the dome a distance measured 
along shell of tank at least equal to the extension at top of tank. 
Other approved designs may be used.
    (f) For thickness of carbon or alloy steel domes, see Sec. 179.201-
2.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21350, Nov. 6, 1971; Amdt. 179-28, 46 
FR 49906, Oct. 8, 1981; Amdt. 179-52, 61 FR 28680, June 5, 1996]



Sec. 179.200-15  Closures for manways.

    (a) Manway covers must be of approved type.
    (b) Manway covers shall be designed to provide a secure closure of 
the manway.
    (c) Manway covers must be of approved cast, forged, or fabricated 
metals. Malleable iron, if used, must comply with ASTM A47-68, Grade 
35018. Cast iron manway covers must not be used.
    (d) All joints between manway covers and their seats shall be made 
tight against leakage of vapor and liquid by use of gaskets of suitable 
material.
    (e) For other manway cover requirements see Sec. 179.201-1.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21350, Nov. 6, 1971; Amdt. 179-37, 50 
FR 11066, Mar. 19, 1985]



Sec. 179.200-16  Gauging devices, top loading and unloading devices, venting and air inlet devices.

    (a) When installed, these devices shall be of an approved design 
which will prevent interchange with any other fixture, and be tightly 
closed. Unloading pipes shall be securely anchored within the tank. Each 
tank or compartment may be equipped with one separate air connection.
    (b) When the characteristics of the commodity for which the car is 
authorized are such that these devices must be equipped with valves or 
fittings to permit the loading and unloading of the contents, these 
devices, including valves, shall be of an approved design, and be 
provided with a protective housing except when plug or ball type valves 
with operating handles removed are used. Provision shall be made for 
closing pipe connections of valves.
    (c) A tank may be equipped with a vacuum relief valve of an approved 
design. Protective housing is not required.
    (d) When using a visual gauging device on a car with a hinged manway 
cover, an outage scale visible through the manway opening shall be 
provided. If loading devices are applied to permit tank loading with 
cover closed, a telltale pipe may be provided. Telltale pipe shall be 
capable of determining that required outage is provided. Pipe shall be 
equipped with \1/4\ inch minimum NPT control valve mounted outside tank 
and enclosed within a housing. Other approved devices may be used in 
lieu of outage scale or telltale pipe.
    (e) Bottom of tank shell may be equipped with a sump or siphon bowl, 
or both, welded or pressed into the shell. Such sumps or siphon bowls, 
if applied are not limited in size and must be made of cast, forged, or 
fabricated metal. Each sump or siphon bowl must be of good welding 
quality in conjunction with the metal of the tank shell. When sump or 
siphon bowl is pressed in the bottom of the tank shell, the wall 
thickness of the pressed section must not be less than that specified 
for the shell. The section of a circular cross section tank to which a 
sump or siphon bowl is attached need not comply with the out-of-
roundness requirement specified in appendix W, W14.06, of the AAR 
Specifications for Tank Cars. Any portion of a sump or siphon bowl not 
forming a part of a cylinder of revolution must have walls of such 
thickness and be so reinforced that the stresses in the walls caused by 
a given internal pressure are not greater than the circumferential 
stress which would exist under the same internal pressure in the wall of 
a tank of circular cross section designed in accordance with 
Sec. 179.200-6 (a) and (d). In no case shall the wall thickness be less 
than that specified in Sec. 179.201-1(a).

[[Page 950]]

    (f) When top loading and discharge devices, or venting and air inlet 
devices are installed with exposed piping to a removed location, shutoff 
valves must be applied directly to reinforcing pads or nozzles at their 
communication through the tank shell, and must be enclosed in a 
protective housing with provision for a seal. The piping must include 
breakage grooves, and suitable bracing. Relief valves must be applied to 
liquid lines for protection in case lading is trapped. Provision must be 
made to insure closure of the valves while the car is in transit.
    (g) Protective housing, when required, must be fabricated of 
approved material and have cover and sidewalls not less than 0.119 inch 
in thickness.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21350, Nov. 6, 1971; Amdt. 179-52, 61 
FR 28680, June 5, 1996]



Sec. 179.200-17  Bottom outlets.

    (a) If indicated in Sec. 179.201-1, tank may be equipped with bottom 
outlet. Bottom outlet, if applied, must comply with the following 
requirements:
    (1) The extreme projection of the bottom outlet equipment may not be 
more than that allowed by appendix E of the AAR Specifications for Tank 
Cars. All bottom outlet reducers and closures and their attachments 
shall be secured to the car by at least \3/8\-inch chain, or its 
equivalent, except that the bottom outlet closure plugs may be attached 
by \1/4\-inch chain. When the bottom outlet closure is of the 
combination cap and valve type, the pipe connection to the valve shall 
be closed by a plug, cap, or approved quick coupling device. The bottom 
outlet equipment should include only the valve, reducers and closures 
that are necessary for the attachment of unloading fixtures. The 
permanent attachment of supplementary exterior fittings shall be 
approved by the AAR Committee on Tank Cars.
    (2) Bottom outlet must be of approved construction, and be provided 
with a liquid-tight closure at its lower end.
    (3) On cars with center sills, a ball valve may be welded to the 
outside bottom of the tank or mounted on a pad or nozzle with a tongue 
and groove or male and female flange attachment. In no case shall the 
breakage groove or equivalent extend below the bottom flange of the 
center sill. On cars without continuous center sills, a ball valve may 
be welded to the outside bottom of the tank or mounted with a tongue and 
groove or male and female flange attachment on a pad attached to the 
outside bottom of the tank. The mounting pad must have a maximum 
thickness of 2\1/2\ inches measured on the longitudinal centerline of 
the tank. The valve operating mechanism must be provided with a suitable 
locking arrangement to insure positive closure during transit.
    (4) The valve operating mechanism for valves applied to the interior 
of the tank, and outlet nozzle construction, must insure against the 
unseating of the valve due to stresses or shocks incident to 
transportation.
    (5) Bottom outlet nozzle of interior valves and the valve body of 
exterior valves, must be of cast, fabricated, or forged metal. If welded 
to tank, they must be of good weldable quality in conjunction with metal 
of tank.
    (6) To provide for the attachment of unloading connections, the 
discharge end of the bottom outlet nozzle or reducer, the valve body of 
the exterior valve, or some fixed attachment thereto, shall be provided 
with one of the following arrangements or an approved modification 
thereof. (See appendix E. Fig. E17 of the AAR Specifications for Tank 
Cars for illustrations of some of the possible arrangements.)
    (i) A bolted flange closure arrangement including a minimum 1-inch 
NPT pipe plug (see Fig. E17.1) or including an auxiliary valve with a 
threaded closure.
    (ii) A threaded cap closure arrangement including a minimum 1-inch 
NPT pipe plug (see Fig. E17.2) or including an auxiliary valve with a 
threaded closure.
    (iii) A quick-coupling device using a threaded plug closure of at 
least 1-inch NPT or having a threaded cap closure with a minimum 1-inch 
NPT pipe plug (see Fig. E17.3 through E17.5). A minimum 1-inch auxiliary 
test valve with a threaded closure may be substituted for the 1-inch 
pipe plug (see Fig. E17.6). If the threaded cap closure does not have a 
pipe plug or integral auxiliary test valve, a minimum 1-inch NPT pipe

[[Page 951]]

plug shall be installed in the outlet nozzle above the closure (see Fig. 
E17.7).
    (iv) A two-piece quick-coupling device using a clamped dust cap must 
include an in-line auxiliary valve, either integral with the quick-
coupling device or located between the primary bottom outlet valve and 
the quick-coupling device. The quick-coupling device closure dust cap or 
outlet nozzle shall be fitted with a minimum 1-inch NPT closure (see 
Fig. E17.8 and E17.9).
    (7) If the outlet nozzle extends 6 inches or more from the shell of 
the tank, a V-shaped breakage groove shall be cut (not cast) in the 
upper part of the outlet nozzle at a point immediately below the lowest 
part of valve closest to the tank. In no case may the nozzle wall 
thickness at the root of the ``V'' be more than \1/4\ inch. The outlet 
nozzle on interior valves or the valve body on exterior valves may be 
steam jacketed, in which case the breakage groove or its equivalent must 
be below the steam chamber but above the bottom of center sill 
construction. If the outlet nozzle is not a single piece, or if exterior 
valves are applied, provisions shall be made for the equivalent of the 
breakage groove. On cars without continuous center sills, the breakage 
groove or its equivalent must be no more than 15 inches below the tank 
shell. On cars with continuous center sills, the breakage groove or its 
equivalent must be above the bottom of the center sill construction.
    (8) The flange on the outlet nozzle or the valve body of exterior 
valves must be of a thickness which will prevent distortion of the valve 
seat or valve by any change in contour of the shell resulting from 
expansion of lading, or other causes, and which will insure that 
accidental breakage of the outlet nozzle will occur at or below the 
``V'' groove, or its equivalent.
    (9) The valve must have no wings or stem projecting below the ``V'' 
groove or its equivalent. The valve and seat must be readily accessible 
or removable for repairs, including grinding.
    (10) The valve operating mechanism on interior valves must have 
means for compensating for variation in the vertical diameter of the 
tank produced by expansion, weight of the liquid contents, or other 
causes, and may operate from the interior of the tank, but in the event 
the rod is carried through the dome, or tank shell, leakage must be 
prevented by packing in stuffing box or other suitable seals and a cap.
    (b) If indicated in Sec. 179.201-1, tank may be equipped with bottom 
washout of approved construction. If applied, bottom washout shall be in 
accordance with the following requirements:
    (1) The extreme projection of the bottom washout equipment may not 
be more than that allowed by appendix E of the AAR Specifications for 
Tank Cars.
    (2) Bottom washout shall be of cast, forged or fabricated metal. If 
welded to tank, they shall be of good weldable quality in conjunction 
with metal of tank.
    (3) If the washout nozzle extends 6 inches or more from the shell of 
the tank, a V-shaped breakage groove shall be cut (not cast) in the 
upper part of the nozzle at a point immediately below the lowest part of 
the inside closure seat or plug. In no case may the nozzle wall 
thickness at the root of the ``V'' be more than \1/4\ inch. Where the 
nozzle is not a single piece, provisions shall be made for the 
equivalent of the breakage groove. The nozzle must be of a thickness to 
insure that accidental breakage will occur at or below the ``V'' groove 
or its equivalent. On cars without continuous center sills, the breakage 
groove or its equivalent may not be more than 15 inches below the outer 
shell. On cars with continuous center sills, the breakage groove or its 
equivalent must be above the bottom of the center sill construction.
    (4) The closure plug and seat must be readily accessible or 
removable for repairs, including grinding.
    (5) The closure of the washout nozzle must be equipped with a \3/4\-
inch solid screw plug. Plug must be attached by at least a \1/4\-inch 
chain.
    (6) Joints between closures and their seats may be gasketed with 
suitable material.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21351, Nov. 6, 1971; Amdt. 179-40, 52 
FR 13047, Apr. 20, 1987]

[[Page 952]]



Sec. 179.200-19  Reinforcements, when used, and appurtenances not otherwise specified.

    (a) All attachments to tank and dome shall be applied by approved 
means. Rivets if used shall be caulked inside and outside.
    (b) Reinforcing pads must be used between external brackets and 
shells if the attachment welds exceed 6 lineal inches of \1/4\-inch 
fillet or equivalent weld per bracket or bracket leg. When reinforcing 
pads are used, they must not be less than one-fourth inch in thickness, 
have each corner rounded to a 1 inch minimum radius, and be attached to 
the tank by continuous fillet welds except for venting provisions. The 
ultimate shear strength of the bracket to reinforcing pad weld must not 
exceed 85 percent of the ultimate shear strength of the reinforcing pad 
to tank weld.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21351, Nov. 6, 1971]



Sec. 179.200-21  Closures for openings.

    (a) All plugs shall be solid, with NPT threads, and shall be of a 
length which will screw at least 6 threads inside the face of fitting or 
tank. Plugs, when inserted from the outside of tank heads, shall have 
the letter ``S'' at least \3/8\ inch in size stamped with steel stamp or 
cast on the outside surface to indicate the plug is solid.
    (b) [Reserved]



Sec. 179.200-22  Test of tanks.

    (a) Each tank shall be tested by completely filling the tank and 
dome or nozzles with water, or other liquid having similar viscosity, of 
a temperature which shall not exceed 100 deg. F. during the test; and 
applying the pressure prescribed in Sec. 179.201-1. Tank shall hold the 
prescribed pressure for at least 10 minutes without leakage or evidence 
of distress. All rivets and closures, except safety relief valves or 
safety vents, shall be in place when test is made.
    (b) Insulated tanks shall be tested before insulation is applied.
    (c) Rubber-lined tanks shall be tested before rubber lining is 
applied.
    (d) Caulking of welded joints to stop leaks developed during the 
foregoing tests is prohibited. Repairs in welded joints shall be made as 
prescribed in AAR Specifications for Tank Cars, appendix W.



Sec. 179.200-23  Tests of safety relief valves.

    (a) Each valve shall be tested by air or gas for compliance with 
Sec. 179.15 before being put into service.
    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
as amended at 62 FR 51561, Oct. 1, 1997]



Sec. 179.200-24  Stamping.

    (a) To certify that the tank complies with all specification 
requirements, each tank shall be plainly and permanently stamped in 
letters and figures at least \3/8\ inch high into the metal near the 
center of both outside heads as follows:

------------------------------------------------------------------------
                                            Example of required stamping
------------------------------------------------------------------------
Specification.............................  DOT-103-W                   
Material..................................  ASTM A 516-GR 70            
Cladding material (if any)................  ASTM A240-304 Clad          
Tank builder's initials...................  ABC                         
Date of original test.....................  00-0000                     
Car assembler (if other than tank builder)  DEF                         
------------------------------------------------------------------------

    (b) On Class DOT-111 tank cars, the last numeral of the 
specification number may be omitted from the stamping; for example, DOT-
111A100W.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21351, Nov. 6, 1971; Amdt. 179-52, 61 
FR 28680, June 5, 1996]



Sec. 179.201-1  Individual specification requirements.

    In addition to Sec. 179.200, the individual specification 
requirements are as follows:

[[Page 953]]



--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                    Minimum                                                                             
                                                       Bursting      plate         Test                                            References (179.201 -
     DOT Specification \1\           Insulation        pressure    thickness     pressure     Bottom  outlet     Bottom washout            ***)         
                                                        (psi)       (inches)      (psi)                                                                 
--------------------------------------------------------------------------------------------------------------------------------------------------------
103A-ALW.......................  Optional..........          240        \1/2\           60  No...............  Optional.                                
103AW..........................  Optional..........          240    179.201-2           60  No...............  Optional.                                
103ALW.........................  Optional..........          240        \1/2\           60  Optional.........  Optional.........  6(a).                 
103ANW.........................  Optional..........          240    179.201-2           60  No...............  Optional.........  6(d).                 
103BW..........................  Optional..........          240    179.201-2           60  No...............  No...............  6(b), 3.              
103CW..........................  Optional..........          240    179.201-2           60  No...............  No...............  6(c), 4,5.            
103DW..........................  Optional..........          240    179.201-2           60  Optional.........  Optional.........  6(a), 6(c), 4, 5.     
103EW..........................  Optional..........          240    179.201-2           60  No...............  Optional.........  6(c), 4, 5.           
103W...........................  Optional..........          240    179.201-2           60  Optional.........  Optional.........  6(a).                 
104W...........................  Yes...............          240    179.201-2           60  Optional.........  Optional.........  6(a).                 
111A60ALW1.....................  Optional..........          240        \1/2\           60  Optional.........  Optional.........  6(a).                 
111A60ALW2.....................  Optional..........          240        \1/2\           60  No...............  Optional.                                
111A60W1.......................  Optional..........          240       \7/16\           60  Optional.........  Optional.........  6(a).                 
111A60W2.......................  Optional..........          240       \7/16\           60  No...............  Optional.                                
111A60W5.......................  Optional..........          240       \7/16\           60  No...............  No...............  3, 6(b).              
111A60W6.......................  Optional..........          240       \7/16\           60  Optional.........  Optional.........  4, 5, 6(a), 6(c).     
111A60W7.......................  Optional..........          240       \7/16\           60  No...............  No...............  4, 5, 6(a).           
111A100ALW1....................  Optional..........          500        \5/8\          100  Optional.........  Optional.........  6(a).                 
111A100ALW2....................  Optional..........          500        \5/8\          100  No...............  Optional.                                
111A100W1......................  Optional..........          500       \7/16\          100  Optional.........  Optional.........  6(a).                 
111A100W2......................  Optional..........          500       \7/16\          100  No...............  Optional.                                
111A100W3......................  Yes...............          500       \7/16\          100  Optional.........  Optional.........  6(a).                 
111A100W4......................  Yes (see 179.201-           500       \7/16\          100  No...............  No...............  6(a), 8, 10.          
                                  11).                                                                                                                  
111A100W5......................  Optional..........          500       \7/16\          100  No...............  No...............  3.                    
111A100W6......................  Optional..........          500       \7/16\          100  Optional.........  Optional.........  4, 5, 6(a) and 6(c).  
111A100W7......................  Optional..........          500       \7/16\          100  No...............  No...............  4, 5, 6(c).           
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ Tanks marked ``ALW'' are constructed from aluminum alloy plate; ``AN'' nickel plate; ``CW,'' ``DW,'' ``EW,'' ``W6,'' and ``W7'' high alloy steel or 
  manganese-molybdenum steel plate; and those marked ``BW'' or ``W5'' must have an interior lining that conforms to Sec.  179.201-3.                    

[Amdt. 179-52, 61 FR 28680, June 5, 1996]

[[Page 954]]



Sec. 179.201-2  Minimum plate thickness.

    (a) The minimum plate thickness, after forming, must be as follows:

----------------------------------------------------------------------------------------------------------------
                                                                                 3:1                            
                                  Bottom     Shell   Expansion      2:1      ellipsoidal  Expansion    Interior 
    Inside diameter of tanks      sheets    sheets      dome    ellipsoidal   and dished     dome    compartment
                                                       sheets      heads      tank heads    heads       heads   
----------------------------------------------------------------------------------------------------------------
                                                                      Inches                                    
                                                                                                                
                                --------------------------------------------------------------------------------
60 inches or under.............    \7/16\     \1/4\     \5/16\      \7/16\        \1/2\      \5/16\      \5/16\ 
Over 60 to 78 inches...........    \7/16\    \5/16\     \5/16\      \7/16\        \1/2\      \5/16\      \5/16\ 
Over 78 to 96 inches...........    1\1/2\     \3/8\     \5/16\      \7/16\        \1/2\      \5/16\       \3/8\ 
Over 96 to 112 inches..........    1\1/2\    \7/16\     \5/16\      \7/16\       \9/16\      \5/16\      \7/16\ 
Over 112 to 122 inches.........     \1/2\     \1/2\     \5/16\       \1/2\        \5/8\      \5/16\       \1/2\ 
----------------------------------------------------------------------------------------------------------------
\1\ May be reduced to \7/16\ inch when approved steels having tensile strength of 65,000 psi or higher are used.

[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21352, Nov. 6, 1971]



Sec. 179.201-3  Lined tanks.

    (a) Rubber-lined tanks.
    (1) Each tank or each compartment thereof must be lined with acid-
resistant rubber or other approved rubber compound vulcanized or bonded 
directly to the metal tank, to provide a nonporous laminated lining, at 
least \5/32\-inch thick, except overall rivets and seams formed by 
riveted attachments in the lining must be double thickness. The rubber 
lining must overlap at least 1\1/2\ inches at all edges which must be 
straight and be beveled to an angle of approximately 45, or butted edges 
of lining must be sealed with a 3-inch minimum strip of lining having 45 
beveled edges.
    (2) As an alternate method, the lining may be joined with a skived 
butt seam then capped with a separate strip of lining 3 inches wide 
having 45 beveled edges. An additional rubber reinforcing pad at least 
4\1/2\ feet square and at least \1/2\-inch thick must be applied by 
vulcanizing to the lining on bottom of tank directly under the manway 
opening. The edges of the rubber pad must be beveled to an angle of 
approximately 45. An opening in this pad for sump is permitted. No 
lining must be under tension when applied except due to conformation 
over rivet heads. Interior of tank must be free from scale, oxidation, 
moisture, and all foreign matter during the lining operation.
    (3) Other approved lining materials may be used provided the 
material is resistant to the corrosive or solvent action of the lading 
in the liquid or gas phase and is suitable for the service temperatures.
    (b) Before a tank car tank is lined with rubber, or other rubber 
compound, a report certifying that the tank and its equipment have been 
brought into compliance with spec. DOT-103B, 103BW, 111A60W5, or 
111A100W5 must be furnished by car owner to the party who is to apply 
the lining. A copy of this report in approved form, certifying that tank 
has been lined in compliance with all requirements of one of the above 
specifications, must be furnished by party lining tank to car owner. 
Reports of the latest lining application must be retained by the car 
owner until the next relining has been accomplished and recorded.
    (c) All rivet heads on inside of tank must be buttonhead, or similar 
shape, and of uniform size. The under surface of heads must be driven 
tight against the plate. All plates, castings and rivet heads on the 
inside of the tank must be calked. All projecting edges of plates, 
castings and rivet heads on the inside of the tank must be rounded and 
free from fins and other irregular projections. Castings must be free 
from porosity.
    (d) All surfaces of attachments or fittings and their closures 
exposed to the lading must be covered with at least \1/8\-

[[Page 955]]

inch acid resistant material. Attachments made of metal not affected by 
the lading need not be covered with rubber or other acid resistant 
material.
    (e) Hard rubber or polyvinyl chloride may be used for pressure 
retaining parts of safety vents provided the material is resistant to 
the corrosive or solvent action of the lading in the liquid or gas phase 
and is suitable for the service temperatures.
    (f) Polyvinyl chloride lined tanks. Tank car tanks or each 
compartment thereof may be lined with elastomeric polyvinyl chloride 
having a minimum lining thickness of three thirty-seconds inch.
    (g) Polyurethane lined tanks. Tank car tanks or each compartment 
thereof may be lined with elastomeric polyurethane having a minimum 
lining thickness of one-sixteenth inch.
[Amdt. 179-10, 36 FR 21352, Nov. 6, 1971]



Sec. 179.201-4  Material.

    All fittings, tubes, and castings and all projections and their 
closures, except for protective housing, must also meet the requirements 
specified in ASTM specification A 262, except that when preparing the 
specimen for testing the carburized surface may be finished by grinding 
or machining.
[Amdt. 179-10, 36 FR 21353, Nov. 6, 1971, as amended by Amdt. 179-52, 61 
FR 28681, June 5, 1996; Amdt. 179-52, 61 FR 50255, Sept. 25, 1996]



Sec. 179.201-5  Postweld heat treatment and corrosion resistance.

    (a) Tanks and attachments welded directly thereto must be postweld 
heat treated as a unit at the proper temperature except as indicated 
below. Tanks and attachments welded directly thereto fabricated from 
ASTM Specification A 240 Type 430A, Type 304 and Type 316 materials must 
be postweld heat treated as a unit and must be tested to demonstrate 
that they possess the corrosion resistance specified in Sec. 179.200-
7(d), Footnote 2. Tanks and attachments welded directly thereto, 
fabricated from ASTM Specification A 240 Type 304L or Type 316L 
materials are not required to be postweld heat treated.
    (b) Tanks and attachments welded directly thereto, fabricated from 
ASTM Specification A 240 Type 304L and Type 316 materials must be tested 
to demonstrate that they possess the corrosion resistance specified in 
Sec. 179.200-7(d), Footnote 2.
[Amdt. 179-10, 36 FR 21353, Nov. 6, 1971, as amended by Amdt. 179-52, 61 
FR 28681, June 5, 1996]



Sec. 179.201-6  Manways and manway closures.

    (a) The manway cover for spec. DOT 103ALW, 103DW, 103W, 104W, 
111A60-ALW1, 111A60W1, 111A100ALW1, 111A-100W1, 111A100W3, or 111A100W6 
must be designed to make it impossible to remove the cover while the 
interior of the tank is subjected to pressure.
    (b) The manway cover for spec. DOT 103BW, 11A60W5, or 111A100W5 must 
be made of a suitable metal. The top, bottom and edge of manway cover 
must be acid resistant material covered as prescribed in Sec. 179.201-3. 
Through-bolt holes must be lined with acid resistant material at least 
one-eighth inch in thickness. Cover made of metal not affected by the 
lading need not be acid resistant material covered.
    (c) The manway ring and cover for spec. DOT-103CW, 103DW, 103EW, 
111360W7, or 11A100W6 must be made of the metal and have the same 
inspection procedures specified in AAR Specifications for Tanks Cars 
Appendix M, M3.03.
    (d) The manway ring for DOT 103 ANW must be made of cast, forged or 
fabricated nickel and be a good weldable quality in conjunction with the 
metal of the dome. Manway cover must be made of nickel.
[Amdt. 179-10, 36 FR 21353, Nov. 6, 1971]



Sec. 179.201-8  Sampling device and thermometer well.

    (a) Sampling valve and thermometer well are not specification 
requirements. When used, they must be of approved design, made of metal 
not subject to rapid deterioration by lading, and must withstand a 
pressure of 100 pounds per square inch without leakage. Interior pipes 
of the sampling valve must be equipped with excess flow valves of an 
approved design. Interior pipe of thermometer well must be closed by an 
approved valve attached close to fitting where it passes through

[[Page 956]]

the tank and closed by a screw plug. Other approved arrangements that 
permit testing thermometer well for leaks without complete removal of 
the closure may be used.
    (b) [Reserved]



Sec. 179.201-9  Gauging device.

    A gauging device of an approved design must be applied to permit 
determining the liquid level of the lading. The gauging device must be 
made of materials not subject to rapid deterioration by the lading. When 
the interior pipe of the gauging device provides a means for passage of 
the lading from the interior to the exterior of the tank, it must be 
equipped with an excess flow valve of an approved design. If the opening 
for passage of lading through the gauging device is not more than 0.060 
inch diameter an excess flow valve is not required. The gauging device 
must be provided with a protective housing.
[Amdt. 179-10, 36 FR 21353, Nov. 6, 1971]



Sec. 179.201-10  Water capacity marking.

    (a) Water capacity of the tank in pounds stamped plainly and 
permanently in letters and figures at least \3/8\ inch high into the 
metal of the tank immediately below the stamped marks specified in 
Sec. 179.200-24(a). This mark shall also be stenciled on the jacket 
immediately below the dome platform and directly behind or within 3 feet 
of the right or left side of the ladder, or ladders, if there is a 
ladder on each side of the tank, in letters and figures at least 1\1/2\ 
inches high as follows:

                             water capacity

                              000000 Pounds

    (b) [Reserved]



Sec. 179.201-11  Insulation.

    (a) Insulation shall be of sufficient thickness so that the thermal 
conductance at 60 deg. F. is not more than 0.075 Btu per hour, per 
square foot, per degree F. temperature differential.
    (b) [Reserved]



Sec. 179.220  General specifications applicable to nonpressure tank car tanks consisting of an inner container supported within an outer shell (class DOT-115).



Sec. 179.220-1  Tanks built under these specifications must meet the requirements of Sec. 179.220, Sec. 179.221, and Sec. 179.222.



Sec. 179.220-3  Type.

    (a) Tanks built under these specifications must consist of an inner 
container, a support system for the inner container, and an outer shell.
    (b) The inner container must be a fusion welded tank of circular 
cross section with formed heads designed convex outward and must have a 
manway on top of the tank as prescribed herein. When the inner container 
is divided into compartments, each compartment must be considered a 
separate container.
    (c) The outer shell must be a fusion welded tank with formed heads 
designed convex outward.
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971]



Sec. 179.220-4  Insulation.

    The annular space between the inner container and the outer shell 
must contain an approved insulation material.
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971]



Sec. 179.220-6  Thickness of plates.

    (a) The wall thickness, after forming of the inner container shell 
and 2:1 ellipsoidal heads must be not less than specified in 
Sec. 179.221-1, or not less than that calculated by the following 
formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.035

where:

d=Inside diameter in inches;
E=0.9 welded joint efficiency; except E=1.0 for seamless heads;
P=Minimum required bursting pressure in p.s.i.;
S=Minimum tensile strength of plate material in p.s.i. as prescribed in 
AAR Specifications for Tank Cars, appendix M, Table M1;
t=Minimum thickness of plate in inches after forming.

[[Page 957]]

    (b) The wall thickness after forming of the inner container heads, 
if flanged and dished, must be not less than specified in Sec. 179.221-
1, or not less than that calculated by the following formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.036

where:

E=0.9 welded joint efficiency; except E=1.0 for seamless heads;
L=Main inside radius to which head is dished, measured on concave side 
in inches;
P=Minimum required bursting pressure in p.s.i.;
S=Minimum tensile strength of plate material in p.s.i. as prescribed in 
AAR Specifications for Tank Cars, appendix M., Table M1;
t=Minimum thickness of plate in inches after forming.

    (c) The wall thickness after forming of the cylindrical section and 
heads of the outer shell must be not less than seven-sixteenths of an 
inch.
    (d) See Sec. 179.220-9 for plate thickness requirements for inner 
container when divided into compartments.
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971]



Sec. 179.220-7  Materials.

    (a) The plate material used to fabricate the inner container and 
nozzles must meet one of the following specifications and with the 
indicated minimum tensile strength and elongation in the welded 
condition.
    (b) Carbon steel plate: The maximum allowable carbon content must be 
0.31 percent when the individual specification allows carbon content 
greater than this amount. The plates may be clad with other approved 
materials.

------------------------------------------------------------------------
                                              Minimum         Minimum   
                                              tensile      elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                           condition \1\  (longitudinal)
------------------------------------------------------------------------
AAR TC 128, Gr. B........................       81,000             19   
ASTM A 516, Gr. 70.......................       70,000            20    
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (c) Aluminum alloy plate: Aluminum alloy plate must be suitable for 
welding and comply with one of the following specifications:

------------------------------------------------------------------------
                                                              Minimum   
                                         Minimum tensile   elongation in
                                            strength         2 inches   
            Specifications               (p.s.i.) welded  (percent) weld
                                        condition\3\ \6\       metal    
                                                          (longitudinal)
------------------------------------------------------------------------
ASTM B 209, Alloy 5052  \1\...........         25,000               18  
ASTM B 209, Alloy 5083  \2\...........         38,000               16  
ASTM B 209, Alloy 5086  \1\...........         35,000               14  
ASTM B 209, Alloy 5154  \1\...........         30,000               18  
ASTM B 209, Alloy 5254  \1\...........         30,000               18  
ASTM B 209, Alloy 5454  \1\...........         31,000               18  
ASTM B 209, Alloy 5652  \1\...........         25,000               18  
------------------------------------------------------------------------
\1\ For fabrication, the parent plate material may be 0 H112, or H32    
  temper, but design calculations must be based on the minimum tensile  
  strength shown.                                                       
\2\ 0 temper only.                                                      
\3\ Weld filler metal 5556 must not be used.                            
\4\ Not authorized for tank shells, manways or domes.                   
\5\ T6 temper only.                                                     
\6\ Maximum stresses to be used in calculations.                        

    (d) High alloy steel plate: High alloy steel plate must comply with 
one of the following specifications:

------------------------------------------------------------------------
                                               Minimum        Minimum   
                                               tensile     elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                            condition\1\  (longitudinal)
------------------------------------------------------------------------
ASTM A 240, Type 304......................       75,000             30  
ASTM A 240, Type 304L.....................       70,000             30  
ASTM A 240, Type 316......................       74,000             30  
ASTM A 240, Type 316L.....................       70,000             30  
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (e) Manganese-molybdenum steel plate: Manganese-molybdenum steel 
plate must be suitable for fusion welding and must comply with the 
following specification:

------------------------------------------------------------------------
                                              Minimum         Minimum   
                                              tensile      elongation in
                                              strength       2 inches   
              Specifications                  (p.s.i.)    (percent) weld
                                               welded          metal    
                                           condition \1\  (longitudinal)
------------------------------------------------------------------------
ASTM A 302, Gr. B........................        80,000             20  
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (f) Plate materials used to fabricate the outer shell and heads must 
be those listed in paragraphs (b), (c), (d), or (e) of this section. The 
maximum allowable carbon content must be 0.31 percent when the 
individual specification allows carbon content greater than this amount. 
The plates may be clad with other approved materials.
    (g) All appurtenances on the inner container in contact with the 
lading

[[Page 958]]

must be made of approved material compatible with the plate material of 
the inner container. These appurtenances must not be subject to rapid 
deterioration by the lading, or must be coated or lined with suitable 
corrosion resistant material. See AAR Specifications for Tank Cars, 
appendix M, M4.05 for approved material specifications for castings for 
fittings.
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971, as amended by Amdt. 179-28, 46 
FR 49906, Oct. 8, 1981; Amdt. 179-40, 52 FR 13048, Apr. 20, 1987; Amdt. 
179-52, 61 FR 28681, June 5, 1996]



Sec. 179.220-8  Tank heads.

    (a) Tank heads of the inner container, inner container compartments 
and outer shell must be of approved contour, and may be flanged and 
dished or ellipsoidal for pressure on concave side.
    (b) Flanged and dished heads must have main inside radius not 
exceeding 10 feet and inside knuckle radius must be not less than 3\3/4\ 
inches for steel and alloy steel tanks nor less than 5 inches for 
aluminum alloy tanks.
    (c) Ellipsoidal heads must be an ellipsoid of revolution in which 
the major axis must equal the diameter of the shell and the minor axis 
must be one-half the major axis.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-9  Compartment tanks.

    (a) The inner container may be divided into compartments by 
inserting interior heads, or by fabricating each compartment as a 
separate container and joining with a cylinder, or by fabricating each 
compartment as a separate tank without a joining cylinder. Each 
compartment must be capable of withstanding, without evidence of 
yielding or leakage, the required test pressure applied in each 
compartment separately, or in any combination of compartments.
    (b) When the inner container is divided into compartments by 
fabricating each compartment as a separate container and joining with a 
cylinder, the cylinder must have a plate thickness not less than that 
required for the inner container shell and must be applied to the 
outside surface of the straight flange portion of the container head. 
The cylinder must fit the straight flange tightly for a distance of at 
least two times the plate thickness, or 1 inch, whichever is greater and 
must be joined to the straight flange by a full fillet weld. Distance 
from fillet weld seam to container head seam must be not less than 1\1/
2\ inches or three times the plate thickness, whichever is greater.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-10  Welding.

    (a) All joints must be fusion-welded in compliance with AAR 
Specifications for Tank Cars, appendix W. Welding procedures, welders, 
and fabricators shall be approved.
    (b) Radioscopy of the outer shell is not a specification 
requirement.
    (c) Welding is not permitted on or to ductile iron or malleable iron 
fittings.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-11  Postweld heat treatment.

    (a) Postweld heat treatment of the inner container is not a 
specification requirement.
    (b) Postweld heat treatment of the cylindrical portions of the outer 
shell to which the anchorage or draft sills are attached must comply 
with AAR Specifications for Tank Cars, appendix W.
    (c) When cold formed heads are used on the outer shell they must be 
heat treated before welding to shell if postweld heat treatment is not 
practicable due to assembly procedures.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-13  Inner container manway nozzle and cover.

    (a) Inner container manway nozzle must be of approved design with 
access opening at least 18 inches inside diameter, or at least 14 inches 
by 18 inches obround or oval.
    (b) Manway covers must be of approved type. Design must provide a 
secure closure of the manway and must make it impossible to remove the 
cover while the tank interior is under pressure.
    (c) All joints between manway covers and their seats must be made 
tight against leakage of vapor and liquid by use of suitable gaskets.

[[Page 959]]

    (d) Manway covers must be cast, forged, or fabricated metal 
complying with subsection Sec. 179.220-7(g) of this section.
    (e) A seal must be provided between the inner container manway 
nozzle and the opening in the outer shell.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-14  Openings in the tanks.

    Openings in the inner container and the outer shell must be 
reinforced in compliance with AAR Specifications for Tank Cars, appendix 
E. In determining the required reinforcement area for openings in the 
outer shell, t shall be one-fourth inch.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-15  Support system for inner container.

    (a) The inner container must be supported within the outer shell by 
a support system of adequate strength and ductility at its operating 
temperature to support the inner container when filled with liquid 
lading to any level. The support system must be designed to support, 
without yielding, impact loads producing accelerations of the following 
magnitudes and directions when the inner container is loaded so that the 
car is at its rail load limit, and the car is equipped with a 
conventional AAR Specification M-901 draft gear.

                                                                        
                                                                        
                                                                        
Longitudinal....................................................      7G
Transverse......................................................      3G
Vertical........................................................      3G
                                                                        

    (b) The longitudinal acceleration may be reduced to 3G where a 
cushioning device of approved design, which has been tested to 
demonstrate its ability to limit body forces to 400,000 pounds maximum 
at a 10 miles per hour impact, is used between the coupler and the tank 
structure. The support system must be of approved design and the inner 
container must be thermally isolated from the outer shell to the best 
practical extent. The inner container and outer shell must be 
permanently bonded to each other electrically either by the support 
system used, piping, or by a separate electrical connection of approved 
design.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971, as amended by Amdt. 179-28, 46 
FR 49906, Oct. 8, 1981]



Sec. 179.220-16  Expansion capacity.

    Expansion capacity must be provided in the shell of the inner 
container as prescribed in Sec. 179.221-1.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-17  Gauging devices, top loading and unloading devices, venting and air inlet devices.

    (a) When installed, each device must be of approved design which 
will prevent interchange with any other fixture and must be tightly 
closed. Each unloading pipe must be securely anchored within the inner 
container. Each inner container or compartment thereof may be equipped 
with one separate air connection.
    (b) When the characteristics of the commodity for which the car is 
authorized require these devices to be equipped with valves or fittings 
to permit the loading and unloading of the contents, these devices 
including valves, shall be provided with a protective housing except 
when plug or ball-type valves with operating handles removed are used. 
Provision must be made for closing pipe connections of valves.
    (c) Inner container may be equipped with a vacuum relief valve of 
approved design. Protective housing is not required.
    (d) When a gauging device is required in Sec. 179.221-1, an outage 
scale visible through the manway opening must be provided. If loading 
devices are applied to permit tank loading with cover closed, a telltale 
pipe may be provided. The telltail pipe must be capable of determining 
that required outage is provided. The pipe must be equipped with \1/4\-
inch maximum, NPT control valve mounted outside tank and enclosed within 
a protective housing. Other approved devices may be used in place of an 
outage scale or a telltale pipe.
    (e) The bottom of the tank shell may be equipped with a sump or 
siphon bowl, or both, welded or pressed into the shell. These sumps or 
siphon bowls, if applied, are not limited in size and

[[Page 960]]

must be made of cast, forged, or fabricated metal. Each sump or siphon 
bowl must be of good welding quality in conjunction with the metal of 
the tank shell. When the sump or siphon bowl is pressed in the bottom of 
the tank shell, the wall thickness of the pressed section must not be 
less than that specified for the shell. The section of a circular cross 
section tank to which a sump or siphon bowl is attached need not comply 
with the out-of-roundness requirement specified in appendix W, W14.06 of 
the AAR Specifications for Tank Cars. Any portion of a sump or siphon 
bowl not forming a part of a cylinder of revolution must have walls of 
such thickness and must be so reinforced that the stresses in the walls 
caused by a given internal pressure are not greater than the 
circumferential stress which would exist under the same internal 
pressure in the wall of a tank of circular cross section designed in 
accordance with Secs. 179.220-6(a) and 179.220-9. In no case shall the 
wall thickness be less than that specified in Sec. 179.221-1(a).
    (f) Protective housing, when required, must be of approved material 
and must have cover and sidewalls not less than 0.119 inch in thickness.
[Amdt. 179-9, 36 FR 21341, Nov. 6, 1971]



Sec. 179.220-18  Bottom outlets.

    (a) The inner container may be equipped with a bottom outlet of 
approved design and an opening provided in the outer shell of its 
access. If applied, the bottom outlet must comply with the following 
requirements:
    (1) The extreme projection of the bottom outlet equipment may not be 
more than that allowed by appendix E of the AAR Specifications for Tank 
Cars. All bottom outlet reducers and closures and their attachments 
shall be secured to car by at at least \3/8\-inch chain, or its 
equivalent, except that bottom outlet closure plugs may be attached by 
\1/4\-inch chain. When the bottom outlet closure is of the combination 
cap and valve type, the pipe connection to the valve shall be closed by 
a plug, or cap. The bottom outlet equipment should include only the 
valve, reducers and closures that are necessary for the attachment of 
unloading fixtures. The permanent attachment of supplementary exterior 
fittings shall be approved by the AAR Committee on Tank Cars.
    (2) Each bottom outlet must be provided with a liquid tight closure 
at its lower end.
    (3) The valve and its operating mechanism must be applied to the 
outside bottom of the inner container. The valve operating mechanism 
must be provided with a suitable locking arrangement to insure positive 
closure during transportation.
    (4) Valve outlet nozzle and valve body must be of cast, fabricated 
or forged metal. If welded to inner container, they must be of good 
weldable quality in conjunction with metal of tank.
    (5) To provide for the attachment of unloading connections, the 
bottom of the main portion of the outlet nozzle or valve body, or some 
fixed attachment thereto, must be provided with threaded cap closure 
arrangement or bolted flange closure arrangement having minimum 1-inch 
threaded pipe plug.
    (6) If outlet nozzle and its closure extends below the bottom of the 
outer shell, a V-shaped breakage groove shall be cut (not cast) in the 
upper part of the outlet nozzle at a point immediately below the lowest 
part of the valve closest to the tank. In no case may the nozzle wall 
thickness at the root of the ``V'' be more than \1/4\-inch. The outlet 
nozzle or the valve body may be steam jacketed, in which case the 
breakage groove or its equivalent must be below the steam chamber but 
above the bottom of the center sill construction. If the outlet nozzle 
is not a single piece or its exterior valves are applied, provision 
shall be made for the equivalent of the breakage groove. On cars without 
continuous center sills, the breakage groove or its equivalent may not 
be more than 15 inches below the outer shell. On cars with continuous 
center sills, the breakage groove or its equivalent must be above the 
bottom of the center sill construction.
    (7) The valve body must be of a thickness which will prevent 
distortion of the valve seat or valve by any change in contour of the 
shell resulting from expansion of lading, or other causes, and which 
will insure that accidental breakage of the outlet nozzle will occur

[[Page 961]]

at or below the ``V'' groove, or its equivalent.
    (8) The valve must have no wings or stem projection below the ``V'' 
groove or its equivalent. The valve and seat must be readily accessible 
or removable for repairs, including grinding.
    (b) Inner container may be equipped with bottom washout of approved 
design. If applied, bottom washout must comply with the following 
requirements:
    (1) The extreme projection of the bottom washout equipment may not 
be more than that allowed by appendix E of the AAR Specifications for 
Tank Cars.
    (2) Bottom washout must be of cast, forged or fabricated metals. If 
it is welded to the inner container, it must be of good weldable quality 
in conjunction with metal of tank.
    (3) If washout nozzle extends below the bottom of the outer shell, a 
V-shaped breakage groove shall be cut (not cast) in the upper part of 
the nozzle at a point immediately below the lowest part of the inside 
closure seat or plug. In no case may the nozzle wall thickness at the 
root of the ``V'' be more than \1/4\-inch. Where the nozzle is not a 
single piece, provisions shall be made for the equivalent of the 
breakage groove. The nozzle must be of a thickness to insure that 
accidental breakage will occur at or below the ``V'' groove or its 
equivalent. On cars without a continuous center sill, the breakage 
groove or its equivalent may not be more than 15 inches below the outer 
shell. On cars with continuous center sills, the breakage groove or its 
equivalent must be above the bottom of the center sill construction.
    (4) The closure plug and seat must be readily accessible or 
removable for repairs.
    (5) The closure of the washout nozzle must be equipped with a \3/4\-
inch solid screw plug. Plug must be attached by at least a \1/4\-inch 
chain.
    (6) Joints between closures and their seats may be gasketed with 
suitable material.
[Amdt. 179-9, 36 FR 21342, Nov. 6, 1971, as amended by Amdt. 179-40, 52 
FR 13048, Apr. 20, 1987]



Sec. 179.220-20  Reinforcements, when used, and appurtenances not otherwise specified.

    All attachments to inner container and outer shell must be applied 
by approved means.
[Amdt. 179-9, 36 FR 21342, Nov. 6, 1971]



Sec. 179.220-22  Closure for openings.

    (a) All plugs must be solid, with NPT threads, and must be of a 
length which will screw at least six threads inside the face of fitting 
or tank. Plugs, when inserted from the outside of the outer shell tank 
heads, must have the letter ``S'' at least three-eighths inch in size 
stamped with steel stamp or cast on the outside surface to indicate the 
plug is solid.
    (b) Openings in the outer shell used during construction for 
installation must be closed in an approved manner.
[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971]



Sec. 179.220-23  Test of tanks.

    (a) Each inner container or compartment must be tested 
hydrostatically to the pressure specified in Sec. 179.221-1. The 
temperature of the pressurizing medium must not exceed 100 deg. F. 
during the test. The container must hold the prescribed pressure for at 
least 10 minutes without leakage or evidence of distress. Safety relief 
devices must not be in place when the test is made.
    (b) The inner container must be pressure tested before installation 
within the outer shell. Items which, because of assembly sequence, must 
be welded to inner container after its installation within outer shell 
must have their attachment welds thoroughly inspected by a 
nondestructive dye penetrant method or its equivalent.
    (c) Pressure testing of outer shell is not a specification 
requirement.
[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971]



Sec. 179.220-24  Tests of safety relief valves.

    Each safety relief valve must be tested by air or gas for compliance 
with Sec. 179.15 before being put into service.
[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971, as amended at 62 FR 51561, Oct. 
1, 1997]

[[Page 962]]



Sec. 179.220-25  Stamping.

    To certify that the tank complies with all specification 
requirements, each outer shell must be plainly and permanently stamped 
in letters and figures at least \3/8\-inch high into the metal near the 
center of both outside heads as follows:

------------------------------------------------------------------------
                                                Examples of required    
                                                      stamping          
------------------------------------------------------------------------
Specifications............................  DOT-115A60W6.               
Inner container:                                                        
  Material................................  ASTM A240-316L.             
  Shell thickness.........................  Shell 0.167 in.             
  Head thickness..........................  Head 0.150 in.              
  Tank builders initials..................  ABC.                        
  Date of original test...................  00-0000.                    
Outer shell:                                                            
  Material................................  ASTM A285-C.                
  Tank builders initials..................  WYZ.                        
Car assembler (if other than inner          DEF.                        
 container or outer shell builders).                                    
------------------------------------------------------------------------

[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971]



Sec. 179.220-26  Stenciling.

    (a) The outer shell, or the jacket if the outer shell is insulated, 
must be stenciled in compliance with AAR Specifications for Tank Cars, 
appendix C.
    (b) Stenciling must be applied on both sides of the outer shell or 
jacket near the center in letters and figures at least 1\1/2\ inches 
high to indicate the safe upper temperature limit, if applicable, for 
the inner tank, insulation, and the support system.
[Amdt. 179-9, 36 FR 21343, Nov. 6, 1971]



Sec. 179.221  Individual specification requirements applicable to tank car tanks consisting of an inner container supported within an outer shell.



Sec. 179.221-1  Individual specification requirements.

    In addition to Sec. 179.220, the individual specification 
requirements are as follows:

[[Page 963]]



--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                        Minimum                                                                         
                                                           Bursting      plate         Test                                                  Reference  
        DOT specification               Insulation         pressure    thickness     pressure       Bottom outlet        Bottom washout    (179.221-***)
                                                            (psi)       (inches)      (psi)                                                             
--------------------------------------------------------------------------------------------------------------------------------------------------------
115A60ALW........................  Yes.................          240       \3/16\           60  Optional.             Optional...........               
115A60W1.........................  Yes.................          240        \1/8\           60  Optional............  Optional...........             1 
115A60W6.........................  Yes.................          240        \1/8\           60  Optional............  Optional...........             1 
--------------------------------------------------------------------------------------------------------------------------------------------------------

[Amdt. 170-52, 61 FR 28681, June 5, 1996, as amended at 62 FR 51561, 
Oct. 1, 1997]

[[Page 964]]



  Subpart E--Specifications for Multi-Unit Tank Car Tanks (Classes DOT-
                             106A and 110AW)



Sec. 179.300  General specifications applicable to multi-unit tank car tanks designed to be removed from car structure for filling and emptying (Classes DOT-
          106A and 110AW).



Sec. 179.300-1  Tanks built under these specifications shall meet the requirements of Sec. 179.300, Sec. 179.301 and when applicable, Sec. 179.302.



Sec. 179.300-3  Type and general requirements.

    (a) Tanks built under this specification shall be cylindrical, 
circular in cross section, and shall have heads of approved design. All 
openings shall be located in the heads.
    (b) Each tank shall have a water capacity of at least 1500 pounds 
and not more than 2600 pounds.
    (c) For tanks made in foreign countries, a chemical analysis of 
materials and all tests as specified shall be carried out within the 
limits of the United States under the supervision of a competent and 
impartial inspector.



Sec. 179.300-4  Insulation.

    (a) Tanks shall not be insulated.
    (b) [Reserved]



Sec. 179.300-6  Thickness of plates.

    (a) For class DOT-110A tanks, the wall thickness after forming of 
the cylindrical portion of the tank must not be less than that specified 
in Sec. 179.301 nor that calculated by the following formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.037

where:
d=inside diameter in inches;
E=1.0 welded joint efficiency;
P=minimum required bursting pressure in p.s.i.;
S=minimum tensile strength of plate material in p.s.i. as prescribed 
Sec. 179.300-7;
t=minimum thickness of plate material in inches after forming.

    (b) For class DOT-106A tanks, the wall thickness of the cylindrical 
portion of the tank shall not be less than that specified in 
Sec. 179.301 and shall be such that at the tank test pressure the 
maximum fiber stress in the wall of the tank will not exceed 15,750 
p.s.i. as calculated by the following formula:

      s=[p(1.3D 2+0.4d 2)]/(D 2-d 
                              2)

where:

d=inside diameter in inches;
D=outside diameter in inches;
p=tank test pressure in p.s.i.;
s=wall stress in p.s.i.

    (c) If plates are clad with material having tensile strength at 
least equal to the base plate, the cladding may be considered a part of 
the base plate when determining the thickness. If cladding material does 
not have tensile strength at least equal to the base plate, the base 
plate alone shall meet the thickness requirements.
[29 FR 18995, Dec. 29, 1964, as amended by Order 71, 31 FR 9083, July 1, 
1966. Redesignated at 32 FR 5606, Apr. 5, 1967]

    Editorial Note: For Federal Register citations to Sec. 179.300-6, 
see the List of CFR Sections Affected in the Finding Aids section of 
this volume.



Sec. 179.300-7  Materials.

    (a) Steel plate material used to fabricate tanks must conform with 
the following specifications with the indicated minimum tensile strength 
and elongation in the welded condition. However, the maximum allowable 
carbon content for carbon steel must not exceed 0.31 percent, although 
the individual ASTM specification may allow for a greater amount of 
carbon. The plates may be clad with other approved materials:

------------------------------------------------------------------------
                                                           Elongation in
                                              Tensile        2 inches   
                                              strength       (percent)  
              Specifications                (psi) welded      welded    
                                           condition \1\   condition \1\
                                             (minimum)    (longitudinal)
                                                             (minimum)  
------------------------------------------------------------------------
ASTM A 240 type 304......................         75,000             25 
ASTM A 240 type 304L.....................         70,000             25 
ASTM A 240 type 316......................         75,000             25 
ASTM A 240 type 316L.....................         70,000             25 
ASTM A 240 type 321......................         75,000             25 
ASTM A285 Gr. A..........................         45,000             29 
ASTM A285 Gr. B..........................         50,000             20 
ASTM A285 Gr. C..........................         55,000             20 
ASTM A515 Gr. 65.........................         65,000             20 
ASTM A515 Gr. 70.........................         70,000             20 
ASTM A516 Gr. 70.........................         70,000            20  
------------------------------------------------------------------------
\1\ Maximum stresses to be used in calculations.                        

    (b)  [Reserved]

[[Page 965]]

    (c) All plates must have their heat number and the name or brand of 
the manufacturer legibly stamped on them at the rolling mill.
[Amdt. 179-10, 36 FR 21355, Nov. 6, 1971, as amended by Amdt. 179-42, 54 
FR 38798, Sept. 20, 1989; Amdt. 179-43, 55 FR 27642, July 5, 1990; Amdt. 
179-52, 61 FR 28682, June 5, 1996; Amdt. 179-52, 61 FR 50255, Sept. 25, 
1996; Amdt. 179-53, 61 FR 51342, Oct. 1, 1996]



Sec. 179.300-8  Tank heads.

    (a) Class DOT-110A tanks shall have fusion-welded heads formed 
concave to pressure. Heads for fusion welding shall be an ellipsoid of 
revolution 2:1 ratio of major to minor axis. They shall be one piece, 
hot formed in one heat so as to provide a straight flange at least 1\1/
2\ inches long. The thickness shall not be less than that calculated by 
the following formula:
[GRAPHIC] [TIFF OMITTED] TC13NO91.038


where symbols are as defined in Sec. 179.300-6(a).
    (b) Class DOT-106A tanks must have forged-welded heads, formed 
convex to pressure. Heads for forge welding must be torispherical with 
an inside radius not greater than the inside diameter of the shell. They 
must be one piece, hot formed in one heat so as to provide a straight 
flange at least 4 inches long. They must have snug drive fit into the 
shell for forge welding. The wall thickness after forming must be 
sufficient to meet the test requirements of Sec. 179.300-16 and to 
provide for adequate threading of openings.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21355, Nov. 6, 1971]



Sec. 179.300-9  Welding.

    (a) Longitudinal joints must be fusion welded. Head-to-shell joints 
must be forge welded on class DOT-106A tanks and fusion welded on class 
DOT-110A tanks. Welding procedures, welders and fabricators must be 
approved in accordance with AAR Specifications for Tank Cars, appendix 
W.
    (b) Fusion-welded joints must be in compliance with the requirements 
of AAR Specifications for Tank Cars, appendix W, except that 
circumferential welds in tanks less than 36 inches inside diameter need 
not be radiotaped.
    (c) Forge-welded joints shall be thoroughly hammered or rolled to 
insure sound welds. The flanges of the heads shall be forge lapwelded to 
the shell and then crimped inwardly toward the center line at least one 
inch on the radius. Welding and crimping must be accomplished in one 
heat.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and as amended by Amdt. 179-10, 36 FR 21355, Nov. 6, 1971]



Sec. 179.300-10  Postweld heat treatment.

    After welding is complete, steel tanks and all attachments welded 
thereto, must be postweld heat treated as a unit in compliance with the 
requirements of AAR Specifications for Tank Cars, appendix W.
[Amdt. 179-10, 36 FR 21355, Nov. 6, 1971]



Sec. 179.300-12  Protection of fittings.

    (a) Tanks shall be of such design as will afford maximum protection 
to any fittings or attachment to the head including the housing referred 
to in Sec. 179.300-12(b). Tank ends shall slope or curve inward toward 
the axis so that the diameter at each end is at least 2 inches less than 
the maximum diameter.
    (b) Loading and unloading valves shall be protected by a detachable 
protective housing of approved design which shall not project beyond the 
end of the tank and shall be securely fastened to the tank head. Safety 
relief devices shall not be covered by the housing.



Sec. 179.300-13  Venting, loading and unloading valves.

    (a) Valves shall be of approved type, made of metal not subject to 
rapid deterioration by lading, and shall withstand tank test pressure 
without leakage. The valves shall be screwed directly into or attached 
by other approved methods to one tank head. Provision shall be made for 
closing outlet connections of the valves.
    (b) Threads for openings shall be National Gas Taper Threads (NGT) 
tapped to gage, clean cut, even and without checks.

[[Page 966]]



Sec. 179.300-14  Attachments not otherwise specified.

    Siphon pipes and their couplings on the inside of the tank head and 
lugs on the outside of the tank head for attaching the valve protective 
housing must be fusion-welded in place prior to postweld heat treatment. 
All other fixtures and appurtenances, except as specifically provided 
for, are prohibited.
[Amdt. 179-10, 36 FR 21355, Nov. 6, 1971]



Sec. 179.300-15  Safety relief devices.

    (a) Unless prohibited in Sec. 179.302, or in part 173 of this 
chapter, tanks shall be equipped with one or more safety relief devices 
of approved type, made of metal not subject to rapid deterioration by 
the lading and screwed directly into tank heads or attached to tank 
heads by other approved methods. The total discharge capacity shall be 
sufficient to prevent building up pressure in tank in excess of 82.5 
percent of the tank test pressure. When safety relief devices of the 
fusible plug type are used, the required discharge capacity shall be 
available in each head. See AAR Specifications for Tank Cars, appendix 
A, for formula for calculating discharge capacity.
    (b) Threads for openings shall be National Gas Taper Threads (NGT) 
tapped to gage, clean cut, even and without checks.
    (c) Safety relief valves shall be set for start-to-discharge and 
frangible discs shall burst at a pressure not exceeding that specified 
in Sec. 179.301.
    (d) Fusible plugs shall function at a temperature not exceeding 
175 deg. F. and shall be vapor-tight at a temperature of not less than 
130 deg. F.



Sec. 179.300-16  Tests of tanks.

    (a) After postweld heat treatment, tanks shall be subjected to 
hydrostatic expansion test in a water jacket, or by other approved 
methods. No tank shall have been subjected previously to internal 
pressure within 100 pounds of the test pressure. Each tank shall be 
tested to the pressure prescribed in Sec. 179.301. Pressure shall be 
maintained for 30 seconds and sufficiently longer to insure complete 
expansion of tank. Pressure gage shall permit reading to accuracy of one 
percent. Expansion gage shall permit reading of total expansion to 
accuracy of one percent. Expansion shall be recorded in cubic 
centimeters.
    (1) No leaks shall appear and permanent volumetric expansion shall 
not exceed 10 percent of total volumetric expansion at test pressure.
    (2) [Reserved]
    (b) After all fittings have been installed, each tank shall be 
subjected to interior air pressure test of at least 100 p.s.i. under 
conditions favorable to detection of any leakage. No leaks shall appear.
    (c) Repairs of leaks detected in manufacture or in foregoing tests 
shall be made by the same process as employed in manufacture of tank. 
Caulking, soldering, or similar repairing is prohibited.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21355, Nov. 6, 1971]



Sec. 179.300-17  Tests of safety relief devices.

    (a) Each valve shall be tested by air or gas before being put into 
service. The valve shall open and be vapor-tight at the pressure 
prescribed in Sec. 179.301.
    (b) Frangible discs of safety vents must be tested as prescribed in 
AAR Specifications for Tank Cars, appendix A, A5.03.
    (c) For safety relief devices of the fusible plug type, a sample of 
the plug used shall function at the temperatures prescribed in 
Sec. 179.300-15.
    (d) The start-to-discharge and vapor-tight pressures shall not be 
affected by any auxiliary closure or other combination.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21355, Nov. 6, 1971]



Sec. 179.300-18  Stamping.

    (a) To certify that the tank complies with all specification 
requirements, each tank shall be plainly and permanently stamped in 
letters and figures \3/8\ inch high into the metal of valve end chime as 
follows:
    (1) DOT Specification number.
    (2) Material and cladding material if any (immediately below the 
specification number).

[[Page 967]]

    (3) Owner's or builder's identifying symbol and serial number 
(immediately below the material identification). The symbol shall be 
registered with the Bureau of Explosives, duplications are not 
authorized.
    (4) Inspector's official mark (immediately below the owner's or 
builder's symbol).
    (5) Date of original tank test (month and year, such as 1-64 for 
January 1964). This should be so placed that dates of subsequent tests 
may easily be added thereto.
    (6) Water capacity--0000 pounds.
    (b) A copy of the above stamping in letters and figures of the 
prescribed size stamped on a brass plate secured to one of the tank 
heads is authorized.



Sec. 179.300-19  Inspection.

    (a) Tank shall be inspected within the United States and Canada by a 
competent and impartial inspector acceptable to the Bureau of 
Explosives. For tanks made outside the United States and Canada, the 
specified inspection shall be made within the United States.
    (b) The inspector shall carefully inspect all plates from which 
tanks are to be made and secure records certifying that plates comply 
with the specification. Plates which do not comply with Sec. 179.300-7 
shall be rejected.
    (c) The inspector shall make such inspection as may be necessary to 
see that all the requirements of this specification, including markings, 
are fully complied with; shall see that the finished tanks are properly 
stress relieved and tested.
    (d) The inspector shall stamp his official mark on each accepted 
tank as required in Sec. 179.300-18, and render the report required in 
Sec. 179.300-20.



Sec. 179.300-20  Reports.

    (a) Before a tank is placed in service, the inspector shall furnish 
to the builder, tank owner, Bureau of Explosives and the Secretary, 
Mechanical Division, Association of American Railroads, a report in 
approved form certifying that the tank and its equipment comply with all 
the requirements of this specification.
    (b) For builder's Certificate of Construction, see Sec. 179.5 (b), 
(c), and (d).
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21355, Nov. 5, 1971]



Sec. 179.301  Individual specification requirements for multi-unit tank car tanks.

    (a) In addition to Sec. 179.300 the individual specification 
requirements are as follows:

                                                                                                                
----------------------------------------------------------------------------------------------------------------
       DOT specification          106A500-X    106A800-X    110A500-W    110A600-W    110A800-W     110A1000-W  
----------------------------------------------------------------------------------------------------------------
Bursting pressure, p.s.i. (see                                                                                  
 Sec.  179.300-5)..............          (1)          (1)         1250         1500         2000            2500
Minimum thickness shell, inches      \13/32\      \11/16\      \11/32\        \3/8\      \15/32\         \19/32\
Test pressure, p.s.i. (see Sec.                                                                                 
  179.300-16)..................          500          800          500          600          800            1000
Safety relief devices, p.s.i.                                                                                   
 (see Sec.  179.300-15)........  ...........  ...........  ...........  ...........  ...........  ..............
Start-to-discharge, or burst                                                                                    
 maximum, p.s.i................          375          600          375          450          600             700
Vapor-tight, minimum p.s.i.....          300          480          300          360          480             650
----------------------------------------------------------------------------------------------------------------
\1\ None specified.                                                                                             

    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-10, 36 FR 21355, Nov. 6, 1971; Amdt. 179-40, 52 
FR 13049, Apr. 20, 1987]



Sec. 179.302  [Reserved]



    Subpart F--Specification for Cryogenic Liquid Tank Car Tanks and 
             Seamless Steel Tanks (Classes DOT-113 and 107A)

    Source:  Sections 179.400 through 179.401-1 appear at 48 FR 27708, 
June 16, 1983 (Amdt. 179-32), unless otherwise noted.


[[Page 968]]


    Sections 179.500 through 179.500-18 appear at 29 FR 18995, Dec. 29, 
1964, unless otherwise noted. Redesignated at 32 FR 5606, Apr. 5, 1967.



Sec. 179.400  General specification applicable to cryogenic liquid tank car tanks.



Sec. 179.400-1  General.

    A tank built to this specification must comply with Secs. 179.400 
and 179.401.



Sec. 179.400-3  Type.

    (a) A tank built to this specification must--
    (1) Consist of an inner tank of circular cross section supported 
essentially concentric within an outer jacket of circular cross section, 
with the out of roundness of both the inner tank and outer jacket 
limited in accordance with Section VIII, Division I, Paragraph UG-80 of 
the ASME Code;
    (2) Have the annular space evacuated after filling the annular space 
with an approved insulating material;
    (3) Have the inner tank heads designed concave to pressure; and
    (4) Have the outer jacket heads designed convex to pressure.
    (b) The tank must be equipped with piping systems for vapor venting 
and transfer of lading, and with pressure relief devices, controls, 
gages and valves, as prescribed herein.



Sec. 179.400-4  Insulation system and performance standard.

    (a) For the purposes of this specification--
    (1) Standard Heat Transfer Rate (SHTR), expressed in Btu/day/lb of 
water capacity, means the rate of heat transfer used for determining the 
satisfactory performance of the insulation system of a cryogenic tank 
car tank in cryogenic liquid service (see Sec. 179.401-1 Table).
    (2) Test cryogenic liquid means the cryogenic liquid, which may be 
different from the lading intended to be shipped in the tank, being used 
during the performance tests of the insulation system.
    (3) Normal evaporation rate (NER), expressed in lbs. (of the 
cryogenic liquid)/day, means the rate of evaporation, determined by test 
of a test cryogenic liquid in a tank maintained at a pressure of 
approximately one atmosphere, absolute. This determination of the NER is 
the NER test.
    (4) Stabilization period means the elapsed time after a tank car 
tank is filled with the test cryogenic liquid until the NER has 
stabilized, or 24 hours has passed, whichever is greater.
    (5) Calculated heat transfer rate. The calculated heat transfer rate 
(CHTR) is determined by the use of test data obtained during the NER 
test in the formula:

    q=[N( h)(90-tl)]/[V(8.32828)(ts-
tf)]

Where:

    q=CHTR, in Btu/day/lb., of water capacity;
    N=NER, determined by NER test, in lbs./day;
     h = latent heat of vaporization of the test cryogenic 
liquid at the NER test pressure of approximately one atmosphere, 
absolute, in Btu/lb.;
    90 = ambient temperature at 90 deg. F.
    V = gross water volume at 60 deg. F. of the inner tank, in gallons;
    tl = equilibrium temperature of intended lading at 
maximum shipping pressure, in  deg. F.;
    8.32828 = constant for converting gallons of water at 60 deg. F. to 
lbs. of water at 60 deg. F., in lbs./gallon;
    ts = average temperature of outer jacket, determined by 
averaging jacket temperatures at various locations on the jacket at 
regular intervals during the NER test, in  deg. F.;
    tf = equilibrium temperature of the test cryogenic liquid 
at the NER test pressure of approximately, one atmosphere, absolute, in 
deg. F.

    (b) DOT-113A60W tank cars must--
    (1) Be filled with hydrogen, cryogenic liquid to the maximum 
permitted fill density specified in Sec. 173.319(d)(2) Table of this 
subchapter prior to performing the NER test; and
    (2) Have a CHTR equal to or less than the SHTR specified in 
Sec. 179.401-1 table for a DOT-113A60W tank car.
    (c) DOT-113C120W tank cars must--
    (1) Be filled with ethylene, cryogenic liquid to the maximum 
permitted fill density specified in Sec. 173.319(d)(2) Table of this 
subchapter prior to performing the NER test, or be filled with nitrogen, 
cryogenic liquid to 90 percent of the volumetric capacity of the inner 
tank prior to performing the NER test; and
    (2) Have a CHTR equal to or less than 75 percent of the SHTR 
specified in

[[Page 969]]

Sec. 179.401-1 Table for a DOT-113C120W tank car.
    (d) Insulating materials must be approved.
    (e) If the insulation consists of a powder having a tendency to 
settle, the entire top of the cylindrical portion of the inner tank must 
be insulated with a layer of glass fiber insulation at least one-inch 
nominal thickness, or equivalent, suitably held in position and covering 
an area extending 25 degrees to each side of the top center line of the 
inner tank.
    (f) The outer jacket must be provided with fittings to permit 
effective evacuation of the annular space between the outer jacket and 
the inner tank.
    (g) A device to measure the absolute pressure in the annular space 
must be provided. The device must be portable with an easily accessible 
connection or permanently positioned where it is readily visible to the 
operator.
[Amdt. 179-32, 48 FR 27708, June 16, 1983, as amended at 49 FR 24318, 
June 12, 1984]



Sec. 179.400-5  Materials.

    (a) Stainless steel of ASTM Specification A240, Type 304 or 304L 
must be used for the inner tank and its appurtenances, as specified in 
AAR Specifications for Tank Cars, appendix M, and must be--
    (1) In the annealed condition prior to fabrication, forming and 
fusion welding;
    (2) Suitable for use at the temperature of the lading; and
    (3) Compatible with the lading.
    (b) Any steel casting, steel forging, steel structural shape or 
carbon steel plate used to fabricate the outer jacket or heads must be 
as specified in AAR Specifications for Tank Cars, appendix M.
    (c) Impact tests must be--
    (1) Conducted in accordance with AAR Specifications for Tank Cars, 
appendix W, W9.01;
    (2) Performed on longitudinal specimens of the material;
    (3) Conducted at the tank design service temperature or colder; and
    (4) Performed on test plate welds and materials used for inner tanks 
and appurtenances and which will be subjected to cryogenic temperatures.
    (d) Impact test values must be equal to or greater than those 
specified in AAR Specifications for Tank Cars, appendix W. The report of 
impact tests must include the test values and lateral expansion data.



Sec. 179.400-6  Bursting and buckling pressure.

    (a)  [Reserved]
    (b) The outer jacket of the required evacuated insulation system 
must be designed in accordance with Sec. 179.400-7(d) and in addition 
must comply with the design loads specified in Section 6.2 of the AAR 
Specifications for Tank Cars. The designs and calculations must provide 
for the loadings transferred to the outer jacket through the support 
system.
[Amdt. 179-32, 48 FR 27708, June 16, 1983, as amended by Amdt. 179-51, 
61 FR 18934, Apr. 29, 1996]



Sec. 179.400-7  Tank heads.

    (a) Tank heads of the inner tank and outer jacket must be flanged 
and dished, or ellipsoidal.
    (b) Flanged and dished heads must have--
    (1) A main inside dish radius not greater than the outside diameter 
of the straight flange;
    (2) An inside knuckle radius of not less than 6 percent of the 
outside diameter of the straight flange; and
    (3) An inside knuckle radius of at least three times the head 
thickness.



Sec. 179.400-8  Thickness of plates.

    (a) The minimum wall thickness, after forming, of the inner shell 
and any 2:1 ellipsoidal head for the inner tank must be that specified 
in Sec. 179.401-1, or that calculated by the following formula, 
whichever is greater:

    t=Pd/2SE

Where:

    t=minimum thickness of plate, after forming, in inches;
    P=minimum required bursting pressure, in psi;
    d=inside diameter, in inches;
    S=minimum tensile strength of the plate material, as prescribed in 
AAR Specifications for Tank Cars, appendix M, Table M1, in psi;

[[Page 970]]

    E=0.9, a factor representing the efficiency of welded joints, except 
that for seamless heads, E=1.0.

    (b) The minimum wall thickness, after forming, of any 3:1 
ellipsoidal head for the inner tank must be that specified in 
Sec. 179.401-1, or that calculated by the following formula, whichever 
is greater:

    t=1.83 Pd/2SE

Where:

    t=minimum thickness of plate, after forming, in inches;
    P=minimum required bursting pressure, in psi;
    d=inside diameter, in inches;
    S=minimum tensile strength of the plate material, as prescribed in 
AAR Specifications for Tank Cars, appendix M, Table M1, in psi;
    E=0.9, a factor representing the efficiency of welded joints, except 
that for seamless heads, E=1.0.

    (c) The minimum wall thickness, after forming, of a flanged and 
dished head for the inner tank must be that specified in Sec. 179.401-1, 
or that calculated by the following formula, whichever is greater:

    t=[PL(3+  (L/r))]/(8SE)

Where:

    t=minimum thickness of plate, after forming, in inches;
    P=minimum required bursting pressure, in psi;
    L=main inside radius of dished head, in inches;
    r=inside knuckle radius, in inches;
    S=minimum tensile strength of plate material, as prescribed in AAR 
Specifications for Tank Cars, appendix M, Table M1, in psi;
    E=0.9, a factor representing the efficiency of welded joints, except 
that for seamless heads, E=1.0.

    (d) The minimum wall thickness, after forming, of the outer jacket 
shell may not be less than \7/16\ inch. The minimum wall thickness, 
after forming, of the outer jacket heads may not be less than \1/2\ inch 
and they must be made from steel specified in Sec. 179.100-23(a)(1). The 
annular space is to be evacuated, and the cylindrical portion of the 
outer jacket between heads, or between stiffening rings if used, must be 
designed to withstand an external pressure of 37.5 psi (critical 
collapsing pressure), as determined by the following formula:

    Pc=[2.6E(t/D)2.5]/[(L/D)-0.45(t/
D)0.5]

Where:

    Pc=Critical collapsing pressure (37.5 psi minimum), in 
psi;
    E=modulus of elasticity of jacket material, in psi;
    t=minimum thickness of jacket material, after forming, in inches;
    D=outside diameter of jacket, in inches;
    L=distance between stiffening ring centers in inches. (The heads may 
be considered as stiffening rings located \1/3\ of the head depth from 
the head tangent line.)
[Amdt. 179-32, 48 FR 27708, June 16, 1983; 49 FR 42736, Oct. 24, 1984]



Sec. 179.400-9  Stiffening rings.

    (a) If stiffening rings are used in designing the cylindrical 
portion of the outer jacket for external pressure, they must be attached 
to the jacket by means of fillet welds. Outside stiffening ring 
attachment welds must be continuous on each side of the ring. Inside 
stiffening ring attachment welds may be intermittent welds on each side 
of the ring with the total length of weld on each side not less than 
one-third of the circumference of the tank. The maximum space between 
welds may not exceed eight times the outer jacket wall thickness.
    (b) A portion of the outer jacket may be included when calculating 
the moment of inertia of the ring. The effective width of jacket plate 
on each side of the attachment of the stiffening ring is given by the 
following formula:

    W=0.78(Rt) 0.5

Where:

    W=width of jacket effective on each side of the stiffening ring, in 
inches;
    R=outside radius of the outer jacket, in inches;
    t=plate thickness of the outer jacket, after forming, in inches.

    (c) Where a stiffening ring is used that consists of a closed 
section having two webs attached to the outer jacket, the jacket plate 
between the webs may be included up to the limit of twice the value of 
``W'', as defined in paragraph (b) of this section. The outer flange of 
the closed section, if not a steel structural shape, is subject to the 
same limitations with ``W'' based on the ``R'' and ``t'' values of the 
flange. Where two separate members such as two angles, are located less 
than ``2W'' apart they may be treated as a single stiffening ring 
member. (The maximum length of

[[Page 971]]

plate which may be considered effective is 4W.) The closed section 
between an external ring and the outer jacket must be provided with a 
drain opening.
    (d) The stiffening ring must have a moment of inertia large enough 
to support the critical collapsing pressure, as determined by either of 
the following formulas:

    I=[0.035D3 LPc]/E, or
    I'=[0.046D3 LPc]/E

Where:

    I=required moment of inertia of stiffening ring about the centroidal 
axis parallel to the vessel axis, in inches to the fourth power;
    I'=required moment of inertia of combined section of stiffening ring 
and effective width of jacket plate about the centroidal axis parallel 
to the vessel axis, in inches to the fourth power;
    D=outside diameter of the outer jacket, in inches;
    L=one-half of the distance from the centerline of the stiffening 
ring to the next line of support on one side, plus one-half of the 
distance from the centerline to the next line of support on the other 
side of stiffening ring. Both distances are measured parallel to the 
axis of the vessel, in inches. (A line of support is:

    (1) A stiffening ring which meets the requirements of this 
paragraph, or
    (2) A circumferential line of a head at one-third the depth of the 
head from the tangent line);

    Pc=critical collapsing pressure (37.5 psi minimum), in 
psi;
    E=modulus of elasticity of stiffening ring material, in psi.

    (e) Where loads are applied to the outer jacket or to stiffening 
rings from the system used to support the inner tank within the outer 
jacket, additional stiffening rings, or an increased moment of inertia 
of the stiffening rings designed for the external pressure, must be 
provided to carry the support loads.



Sec. 179.400-10  Sump or siphon bowl.

A sump or siphon bowl may be in the bottom of the inner tank shell if--
    (a) It is formed directly into the inner tank shell, or is formed 
and welded to the inner tank shell and is of weldable quality metal that 
is compatible with the inner tank shell;
    (b) The stress in any orientation under any condition does not 
exceed the circumferential stress in the inner tank shell; and
    (c) The wall thickness is not less than that specified in 
Sec. 179.401-1.



Sec. 179.400-11  Welding.

    (a) Except for closure of openings and a maximum of two 
circumferential closing joints in the cylindrical portion of the outer 
jacket, each joint of an inner tank and the outer jacket must be a 
fusion double welded butt joint.
    (b) The closure for openings and the circumferential closing joints 
in the cylindrical portion of the outer jacket, including head to shell 
joints, may be a single welded butt joint using a backing strip on the 
inside of the joint.
    (c) Each joint must be welded in accordance with the requirements of 
AAR Specifications for Tank Cars, appendix W.
    (d) Each welding procedure, welder, and fabricator must be approved.



Sec. 179.400-12  Postweld heat treatment.

    (a) Postweld heat treatment of the inner tank is not required.
    (b) The cylindrical portion of the outer jacket, with the exception 
of the circumferential closing seams, must be postweld heat treated as 
prescribed in AAR Specifications for Tank Cars, appendix W. Any item to 
be welded to this portion of the outer jacket must be attached before 
postweld heat treatment. Welds securing the following need not be 
postweld heat treated when it is not practical due to final assembly 
procedures:
    (1) the inner tank support system to the outer jacket,
    (2) connections at piping penetrations,
    (3) closures for access openings, and
    (4) circumferential closing joints of head to shell joints.
    (c) When cold formed heads are used on the outer jacket they must be 
heat treated before welding to the jacket shell if postweld heat 
treatment is not practical due to assembly procedures.



Sec. 179.400-13  Support system for inner tank.

    (a) The inner tank must be supported within the outer jacket by a 
support system of approved design. The system and its areas of 
attachment to the

[[Page 972]]

outer jacket must have adequate strength and ductility at operating 
temperatures to support the inner tank when filled with the lading to 
any level incident to transportation.
    (b) The support system must be designed to support, without 
yielding, impact loads producing accelerations of the following 
magnitudes and directions when the inner tank is fully loaded and the 
car is equipped with a conventional draft gear:
  Longitudinal....................................................7``g''
  Transverse......................................................3``g''
  Vertical........................................................3``g''

The longitudinal acceleration may be reduced to 3``g'' where a 
cushioning device of approved design, which has been tested to 
demonstrate its ability to limit body forces to 400,000 pounds maximum 
at 10 miles per hour, is used between the coupler and the tank 
structure.
    (c) The inner tank and outer jacket must be permanently bonded to 
each other electrically, by either the support system, piping, or a 
separate electrical connection of approved design.



Sec. 179.400-14  Cleaning of inner tank.

    The interior of the inner tank and all connecting lines must be 
thoroughly cleaned and dried prior to use. Proper precautions must be 
taken to avoid contamination of the system after cleaning.



Sec. 179.400-15  Radioscopy.

    Each longitudinal and circumferential joint of the inner tank, and 
each longitudinal and circumferential double welded butt joint of the 
outer jacket, must be examined along its entire length in accordance 
with the requirements of AAR Specifications for Tank Cars, appendix W.



Sec. 179.400-16  Access to inner tank.

    (a) The inner tank must be provided with a means of access having a 
minimum inside diameter of 16 inches. Reinforcement of the access 
opening must be made of the same material used in the inner tank. The 
access closure must be of an approved material and design.
    (b) If a welded closure is used, it must be designed to allow it to 
be reopened by grinding or chipping and to be closed again by rewelding, 
preferably without a need for new parts. A cutting torch may not be 
used.



Sec. 179.400-17  Inner tank piping.

    (a) Product lines. The piping system for vapor and liquid phase 
transfer and venting must be made for material compatible with the 
product and having satisfactory properties at the lading temperature. 
The outlets of all vapor phase and liquid phase lines must be located so 
that accidental discharge from these lines will not impinge on any metal 
of the outer jacket, car structures, trucks or safety appliances. 
Suitable provison must be made to allow for thermal expansion and 
contraction.
    (1) Loading and unloading line. A liquid phase transfer line must be 
provided and it must have a manually operated shut-off valve located as 
close as practicable to the outer jacket, plus a secondary closure that 
is liquid and gas tight. This secondary closure must permit any trapped 
pressure to bleed off before the closure can be removed completely. A 
vapor trap must be incorporated in the line and located as close as 
practicable to the inner tank. On a DOT-113A60W tank car, any loading 
and unloading line must be vacuum jacketed between the outer jacket and 
the shut-off valve and the shut-off valve must also be vacuum jacketed
    (2) Vapor phase line. A vapor phase line must connect to the inner 
tank and must be of sufficient size to permit the pressure relief 
devices specified in Sec. 179.400-20 and connected to this line to 
operate at their design capacity without excessive pressure build-up in 
the tank. The vapor phase line must have a manually operated shut-off 
valve located as close as practicable to the outer jacket, plus a 
secondary closure that is liquid and gas tight. This secondary closure 
must permit any trapped pressure to bleed off before the closure can be 
removed completely.
    (3) Vapor phase blowdown line. A blowdown line must be provided. It 
must be attached to the vapor phase line specified in paragraph (a)(2) 
of this section, upstream of the shut-off valve in that line. A by-pass 
line with a manually operated shut-off valve must be provided to permit 
reduction of the inner

[[Page 973]]

tank pressure when the vapor phase line is connected to a closed system. 
The discharge from this line must be outside the housing and must be 
directed upward and away from operating personnel.
    (b) Any pressure building system provided for the purpose of 
pressurizing the vapor space of the inner tank to facilitate unloading 
the liquid lading must be approved.



Sec. 179.400-18  Test of inner tank.

    (a) After all items to be welded to the inner tank have been welded 
in place, the inner tank must be pressure tested at the test pressure 
prescribed in Sec. 179.401-1. The temperature of the pressurizing medium 
may not exceed 100 deg.F. during the test. The inner tank must hold the 
prescribed pressure for a period of not less than ten minutes without 
leakage or distortion. In a pneumatic test, due regard for the 
protection of all personnel should be taken because of the potential 
hazard involved. After a hydrostatic test the container and piping must 
be emptied of all water and purged of all water vapor.
    (b) Caulking of welded joints to stop leaks developed during the 
test is prohibited. Repairs to welded joints must be made as prescribed 
in AAR Specifications for Tank Cars, appendix W.



Sec. 179.400-19  Valves and gages.

    (a) Valves. Manually operated shut-off valves and control valves 
must be provided wherever needed for control of vapor phase pressure, 
vapor phase venting, liquid transfer and liquid flow rates. All valves 
must be made from approved materials compatible with the lading and 
having satisfactory properties at the lading temperature.
    (1) Liquid control valves must be of extended stem design.
    (2) Packing, if used, must be satisfactory for use in contact with 
the lading and of approved materials that will effectively seal the 
valve stem without causing difficulty of operation.
    (3) Each control valve and shut-off valve must be readily operable. 
These valves must be mounted so that their operation will not transmit 
excessive forces to the piping system.
    (b) Gages. Gages, except portable units, must be securely mounted 
within suitable protective housings. A liquid level gage and a vapor 
phase pressure gage must be provided as follows:
    (1) Liquid level gage. (i) A gage of approved design to indicate the 
quantity of liquefied lading within the inner tank, mounted where it 
will be readily visible to an operator during transfer operations or 
storage, or a portable gage with a readily accessible connection, or
    (ii) A fixed length dip tube, with a manually operated shut-off 
valve located as close as practicable to the outer jacket. The dip tube 
must indicate the maximum liquid level for the allowable filling 
density. The inner end of the dip tube must be located on the 
longitudinal centerline of the inner tank and within four feet of the 
transverse centerline of the inner tank.
    (2) Vapor phase pressure gage. A vapor phase pressure gage of 
approved design, with a manually operated shut-off valve located as 
close as practicable to the outer jacket. The gage must indicate the 
vapor pressure within the inner tank and must be mounted where it will 
be readily visible to an operator. An additional fitting for use of a 
test gage must be provided.



Sec. 179.400-20  Pressure relief devices.

    (a) The tank must be provided with pressure relief devices for the 
protection of the tank assembly and piping system. The discharge from 
these devices must be directed away from operating personnel, principal 
load bearing members of the outer jacket, car structure, trucks and 
safety appliances. Vent or weep holes in pressure relief devices are 
prohibited. All main pressure relief devices must discharge to the 
outside of the protective housings in which they are located, except 
that this requirement does not apply to pressure relief valves installed 
to protect isolated sections of lines between the final valve and end 
closure.
    (b) Materials. Materials used in pressure relief devices must be 
suitable for use at the temperature of the lading and otherwise 
compatible with the lading in both the liquid and vapor phases.
    (c) Inner tank. Pressure relief devices for the inner tank must be 
attached to

[[Page 974]]

vapor phase piping and mounted so as to remain at ambient temperature 
prior to operation. The inner tank must be equipped with one or more 
pressure relief valves and one or more safety vents (except as noted in 
paragraph (c)(3)(iv) of this section), and installed without an 
intervening shut-off valve (except as noted in paragraph (c)(3)(iii) of 
this section). Additional requirements are as follows:
    (1) Safety vent. The safety vent shall function at the pressure 
specified in Sec. 179.401-1. The safety vent must be flow rated in 
accordance with the applicable provisions of AAR Specifications for Tank 
Cars, appendix A, and provide sufficient capacity to meet the 
requirements of AAR Specifications for Tanks Cars, appendix A, A8.07(a).
    (2) Pressure relief valve. The pressure relief valve must:
    (i) be set to start-to-discharge at the pressure specified in 
Sec. 179.401-1, and
    (ii) meet the requirements of AAR Specifications for Tank Cars, 
appendix A, A8.07(b).
    (3) Installation of safety vent and pressure relief valve.
    (i) Inlet piping.
    (A) The opening through all piping and fittings between the inner 
tank and its pressure relief devices must have a cross-sectional area at 
least equal to that of the pressure relief device inlet, and the flow 
characteristics of this upstream system must be such that the pressure 
drop will not adversely affect the relieving capacity or the proper 
operation of the pressure relief device.
    (B) When the required relief capacity is met by the use of multiple 
pressure relief device placed on one connection, the inlet internal 
cross-sectional area of this connection must be sufficient to provide 
the required flow capacity for the proper operation of the pressure 
relief device system.
    (ii) Outlet piping.
    (A) The opening through the discharge lines must have a cross-
sectional area at least equal to that of the pressure relief device 
outlet and may not reduce the relieving capacity below that required to 
properly protect the inner tank.
    (B) When the required relieving capacity is met by use of multiple 
pressure relief devices placed on a common discharge manifold, the 
manifold outlet internal cross-sectional area must be at least equal to 
the combined outlet areas of the pressure relief devices.
    (iii) Duplicate pressure relief devices may be used when an approved 
3-way selector valve is installed to provide for relief through either 
duplicate pressure relief device. The 3-way valve must be included in 
the mounting prescribed by AAR Specifications for Tank Cars, appendix A, 
A6.02(g), when conducting the flow capacity test on the safety vent 
prescribed by AAR Specifications for Tank Cars, appendix A, A6.01. Flow 
capacity tests must be performed with the 3-way valve at both of the 
extreme positions as well as at the mid-position and the flow capacity 
must be in accordance with AAR Specifications for Tank Cars, appendix A, 
A8.07(a).
    (iv) An alternate pressure relief valve, set as required in 
Sec. 179.401-1, may be used in lieu of the safety vent, provided it 
meets the flow capacity prescribed in AAR Specifications for Tank Cars, 
appendix A at a flow rating pressure of 110 percent of its start-to-
discharge pressure. Installation must--
    (A) Prevent moisture accumulation at the seat by providing drainage 
away from that area,
    (B) Permit periodic drainage of the vent piping, and
    (C) Prevent accumulation of foreign material in the vent system.
    (4) Evaporation control. The routine release of vaporized lading may 
be controlled with a pressure controlling and mixing device, except that 
a pressure controlling and mixing device is required on each DOT-113A60W 
car. Any pressure controlling and mixing device must--
    (i) Be set to start-to-discharge at a pressure not greater than that 
specified in Sec. 179.401-1;
    (ii) Have sufficient capacity to limit the pressure within the inner 
tank to that pressure specified in Sec. 179.401-1, when the discharge is 
equal to twice the normal venting rate during transportation, with 
normal vacuum and the outer shell at 130 deg.F; and
    (iii) Prevent the discharge of a gas mixture exceeding 50% of the 
lower flammability limit to the atmosphere

[[Page 975]]

under normal conditions of storage or transportation.
    (5) Safety interlock. If a safety interlock is provided for the 
purpose of allowing transfer of lading at a pressure higher than the 
pressure control valve setting but less than the pressure relief valve 
setting, the design must be such that the safety interlock will not 
affect the discharge path of the pressure relief value or safety vent at 
any time. The safety interlock must automatically provide an 
unrestricted discharge path for the pressure control device at all times 
when the tank car is in transport service.
    (d) Outer jacket. The outer jacket must be provided with a suitable 
system to prevent buildup of annular space pressure in excess of 16 psig 
or the external pressure for which the inner tank was designed, 
whichever is less. The total relief area provided by the system must be 
a minimum of 25 square inches, and means must be provided to prevent 
clogging of any system opening, as well as to ensure adequate 
communication to all areas of the insulation space. If a safety vent is 
a part of the system, it must be designed to prevent distortion of the 
frangible disc when the annular space is evacuated.
    (e) Piping system. Where a piping circuit can be isolated by closing 
a valve, means for pressure relief must be provided.



Sec. 179.400-21  Test of pressure relief valves.

    Each valve must be tested with air or gas for compliance with 
Sec. 179.401-1 before being put into service.



Sec. 179.400-22  Protective housings.

    Each valve, gage, closure and pressure relief device, with the 
exception of secondary relief valves for the protection of isolated 
piping, must be enclosed within a protective housing. The protective 
housing must be adequate to protect the enclosed components from direct 
solar radiation, mud, sand, adverse environmental exposure and 
mechanical damage incident to normal operation of the tank car. It must 
be designed to provide reasonable access to the enclosed components for 
operation, inspection and maintenance and so that vapor concentrations 
cannot build up to a dangerous level inside the housing in the event of 
valve leakage or pressure relief valve operation. All equipment within 
the protective housing must be operable by personnel wearing heavy 
gloves and must incorporate provisions for locks or seals. A protective 
housing and its cover must be constructed of metal not less than 0.119 
inch thick.



Sec. 179.400-23  Operating instructions.

    All valves and gages must be clearly identified with corrosion-
resistant nameplates. A plate of corrosion-resistant material bearing 
precautionary instructions for the safe operation of the equipment 
during storage and transfer operations must be securely mounted so as to 
be readily visible to an operator. The instruction plate must be mounted 
in each housing containing operating equipment and controls for product 
handling. These instructions must include a diagram of the tank and its 
piping system with the various gages, control valves and pressure relief 
devices clearly identified and located.



Sec. 179.400-24  Stamping.

    (a) A tank that complies with all specification requirements must 
have the following information plainly and permanently stamped into the 
metal near the center of the head of the outer jacket at the ``B'' end 
of the car, in letters and figures at least \3/8\-inch high, in the 
following order:

------------------------------------------------------------------------
                                            Example of required stamping
------------------------------------------------------------------------
Specification............................  DOT-113A60W.                 
Design service temperature...............  Minus 423 deg. F.            
Inner tank...............................  Inner Tank.                  
  Material...............................  ASTM A240-304.               
  Shell thickness........................  Shell \3/16\ inch.           
  Head thickness.........................  Head \3/16\ inch.            
  Inside diameter........................  ID 107 inch.                 
  Inner tank builder's initials..........  ABC.                         
  Date of original test (month and year)   00-0000GHK.                  
   and initials of person conducting                                    
   original test.                                                       
  Water capacity.........................  00000 lbs.                   
Outer jacket.............................  Outer jacket.                
  Material...............................  ASTM A515-70.                
  Outer jacket builder's initials........  DEF.                         
Car assembler's initials (if other than    XYZ.                         
 inner tank or outer jacket builder).                                   
------------------------------------------------------------------------

    (b) Any stamping on the shell or heads of the inner tank is 
prohibited.

[[Page 976]]

    (c) In lieu of the stamping required by paragraph (a) of this 
section, the specified markings may be incorporated on a data plate of 
corrosion-resistant metal, fillet welded in place on the head of the 
outer jacket at the ``B'' end of the car.



Sec. 179.400-25  Stenciling.

    Each tank car must be stenciled in compliance with the provisions of 
the AAR Specifications for Tank Cars, appendix C. The stenciling must 
also include the following:
    (a) The date on which the frangible disc was last replaced and the 
initials of the person making the replacement, on the outer jacket in 
letters and figures at least 1\1/2\ inches high.
    (b) The design service temperature and maximum lading weight, in 
letters and figures at least 1\1/2\ inches high adjacent to the 
hazardous material stencil.
    (c) The water capacity, in pounds net at 60 deg.F., with the tank at 
its coldest operating temperature, after deduction for the volume above 
the inlet to the pressure relief device or pressure control valve, 
structural members, baffles, piping, and other appurtenances inside the 
tank, in letters and figures at least 1\1/2\ inches high.
    (d) Both sides of the tank car, in letters at least 1\1/2\ inches 
high, with the statement ``Do Not Hump or Cut Off While in Motion.''
    (e) The outer jacket, below the tank classification stencil, in 
letters at least 1\1/2\ inches high, with the statement, ``vacuum 
jacketed.''



Sec. 179.401  Individual specification requirements applicable to inner tanks for cryogenic liquid tank car tanks.



Sec. 179.401-1  Individual specification requirements.

    In addition to Sec. 179.400, the individual specification 
requirements for the inner tank and its appurtenances are as follows:

------------------------------------------------------------------------
        DOT specification               113A60W            113C120W     
------------------------------------------------------------------------
Design service temperature,       -423..............  -260.             
 deg.F.                                                                 
Material........................  Sec.  179.400-5...  Sec.  179.400-5.  
Impact test (weld and plate       Sec.  179.400-5(c)  Sec.  179.400-5(c)
 material).                                            .                
Impact test values..............  Sec.  179.400-5(d)  Sec.  179.400-5(d)
                                                       .                
Standard heat transfer rate.                                            
  (Btu per day per lb. of water   0.097.............  0.4121.           
   capacity, max.) (see Sec.                                            
   179.400-4).                                                          
Bursting pressure, min. psi.....  240...............  300.              
Minimum plate thickness shell,    \3/16\............  \3/16\.           
 inches (see Sec.  179.400-7(a)).                                       
Minimum head thickness, inches    \3/16\............  \3/16\.           
 (see Sec.  179.400-7 (a), (b),                                         
 and (c)).                                                              
Test pressure, psi (see Sec.      60................  120.              
 179.400-16).                                                           
Safety vent bursting pressure,    60................  120.              
 max. psi.                                                              
Pressure relief valve start-to-   30................  75.               
 discharge pressure, psi ( 3 psi).                                                         
Pressure relief valve vapor       24................  60.               
 tight pressure, min. psi.                                              
Pressure relief valve flow        40................  85.               
 rating pressure, max. psi.                                             
Alternate pressure relief valve   ..................  90.               
 start to-discharge pressure,                                           
 psi ( 3 psi).                                              
Alternate pressure relief valve   ..................  72.               
 vapor tight pressure, min. psi.                                        
Alternate pressure relief valve   ..................  100.              
 flow rating pressure, max. psi.                                        
Pressure control valve Start-to-  17................  Not required.     
 vent, max. psi (see Sec.                                               
 179.400-20(c)(4)).                                                     
Relief device discharge           Sec.  179.400-20..  179.400-20.       
 restrictions.                                                          
Transfer line insulation........  Sec.  179.400-17..  Not required.     
------------------------------------------------------------------------

[Amdt. 179-32, 48 FR 27708, June 16, 1983, as amended at 49 FR 24318, 
June 12, 1984]



Sec. 179.500  Specification DOT-107A * * * * seamless steel tank car tanks.



Sec. 179.500-1  Tanks built under these specifications shall meet the requirements of Sec. 179.500.



Sec. 179.500-3  Type and general requirements.

    (a) Tanks built under this specification shall be hollow forged or 
drawn in one piece. Forged tanks shall be machined inside and outside 
before ends are necked-down and, after necking-down, the ends shall be 
machined to size on the ends and outside diameter. Machining not 
necessary on inside or

[[Page 977]]

outside of seamless steel tubing, but required on ends after necking-
down.
    (b) For tanks made in foreign countries, chemical analysis of 
material and all tests as specified must be carried out within the 
limits of the United States under supervision of a competent and 
disinterested inspector; in addition to which, provisions in 
Sec. 179.500-18 (b) and (c) shall be carried out at the point of 
manufacture by a recognized inspection bureau with principal office in 
the United States.
    (c) The term ``marked end'' and ``marked test pressure'' used 
throughout this specification are defined as follows:
    (1) ``Marked end'' is that end of the tank on which marks prescribed 
in Sec. 179.500-17 are stamped.
    (2) ``Marked test pressure'' is that pressure in pounds per square 
inch which is indicated by the figures substituted for the **** in the 
marking DOT-107A **** stamped on the marked end of tank.
    (d) The gas pressure at 130 F in the tank shall not exceed \7/10\ of 
the marked test pressure of the tank.



Sec. 179.500-4  Thickness of wall.

    (a) Minimum thickness of wall of each finished tank shall be such 
that at a pressure equal to \7/10\ of the marked test pressure of the 
tank, the calculated fiber stress in pounds per square inch at inner 
wall of tank multiplied by 3.0 will not exceed the tensile strength of 
any specimen taken from the tank and tested as prescribed in 
Sec. 179.500-7(b). Minimum wall thickness shall be \1/4\ inch.
    (b) Calculations to determine the maximum marked test pressure 
permitted to be marked on the tank shall be made by the formula:

       P=[10S(D 2-d 2)]/[7(D 2+d 
                             2)]

where:

P=Maximum marked test pressure permitted;

                                 S=U/3.0

where:

U=Tensile strength of that specimen which shows the lower tensile 
strength of the two specimens taken from the tank and tested as 
prescribed in Sec. 179.500-7(b).
3=Factor of safety.
(D 2-d 2/(D 2+d 2)=The 
smaller value obtained for this factor by the operations specified in 
Sec. 179.500-4(c).

    (c) Measure at one end, in a plane perpendicular to the longitudinal 
axis of the tank and at least 18 inches from that end before necking-
down:

d=Maximum inside diameter (inches) for the location under consideration; 
to be determined by direct measurement to an accuracy of 0.05 inch.
t=Minimum thickness of wall for the location under consideration; to be 
determined by direct measurement to an accuracy of 0.001 inch.
Take D=d+2t.
Calculate the value of (D 2-d 2)/(D 2+d 
2)

    (1) Make similar measurements and calculation for a corresponding 
location at the other end of the tank.
    (2) Use the smaller result obtained, from the foregoing, in making 
calculations prescribed in paragraph (b) of this section.
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, 
and amended by Amdt. 179-31, 47 FR 43067, Sept. 30, 1982]



Sec. 179.500-5  Material.

    (a) Tanks shall be made from open-hearth or electric steel of 
uniform quality. Material shall be free from seams, cracks, laminations, 
or other defects injurious to finished tank. If not free from such 
defects, the surface may be machined or ground to eliminate these 
defects. Forgings and seamless tubing for bodies of tanks shall be 
stamped with heat numbers.
    (b) Steel (see Note 1) must conform to the following requirements as 
to chemical composition:

------------------------------------------------------------------------
                                          Class I    Class II  Class III
              Designation                (percent)  (percent)  (percent)
------------------------------------------------------------------------
Carbon, maximum........................       0.50       0.50       0.53
Manganese, maximum.....................       1.65       1.65       1.85
Phosphorus, maximum....................        .05        .05        .05
Sulphur, maximum.......................        .06        .05        .05
Silicon, maximum.......................        .35        .30        .37
Molybdenum, maximum....................  .........        .25        .30
Chromium, maximum......................  .........        .30        .30
Sum of manganese and carbon not over...       2.10       2.10  .........
------------------------------------------------------------------------
Note 1: Alternate steel containing other alloying elements may be used  
  if approved.                                                          

    (1) For instructions as to the obtaining and checking of chemical 
analysis, see Sec. 179.500-18(b)(3).
    (2) [Reserved]

[[Page 978]]



Sec. 179.500-6  Heat treatment.

    (a) Each necked-down tank shall be uniformly heat treated. Heat 
treatment shall consist of annealing or normalizing and tempering for 
Class I, Class II and Class III steel or oil quenching and tempering for 
Class III steel. Tempering temperatures shall not be less than 1000 deg. 
F. Heat treatment of alternate steels shall be approved. All scale shall 
be removed from outside of tank to an extent sufficient to allow proper 
inspection.
    (b) To check uniformity of heat treatment, Brinnel hardness tests 
shall be made at 18 inch intervals on the entire longitudinal axis. The 
hardness shall not vary more than 35 points in the length of the tank. 
No hardness tests need be taken within 12 inches from point of head to 
shell tangency.
    (c) A magnetic particle inspection shall be performed after heat 
treatment on all tanks subjected to a quench and temper treatment to 
detect the presence of quenching cracks. Cracks shall be removed to 
sound metal by grinding and the surface exposed shall be blended 
smoothly into the surrounding area. A wall thickness check shall then be 
made of the affected area by ultrasonic equipment or other suitable 
means acceptable to the inspector and if the remaining wall thickness is 
less than the minimum recorded thickness as determined by Sec. 179.500-
4(b) it shall be used for making the calculation prescribed in paragraph 
(b) of this section.



Sec. 179.500-7  Physical tests.

    (a) Physical tests shall be made on two test specimens 0.505 inch in 
diameter within 2-inch gauge length, taken 180 degrees apart, one from 
each ring section cut from each end of each forged or drawn tube before 
necking-down, or one from each prolongation at each end of each necked-
down tank. These test specimen ring sections or prolongations shall be 
heat treated, with the necked-down tank which they represent. The width 
of the test specimen ring section must be at least its wall thickness. 
Only when diameters and wall thickness will not permit removal of 0.505 
by 2-inch tensile test bar, laid in the transverse direction, may test 
bar cut in the longitudinal direction be substituted. When the thickness 
will not permit obtaining a 0.505 specimen, then the largest diameter 
specimen obtainable in the longitudinal direction shall be used. 
Specimens shall have bright surface and a reduced section. When 0.505 
specimen is not used the gauge length shall be a ratio of 4 to 1 length 
to diameter.
    (b) Elastic limit as determined by extensometer, shall not exceed 70 
percent of tensile strength for class I steel or 85 percent of tensile 
strength for class II and class III steel. Determination shall be made 
at cross head speed of not more than 0.125 inch per minute with an 
extensometer reading to 0.0002 inch. The extensometer shall be read at 
increments of stress not exceeding 5,000 pounds per square inch. The 
stress at which the strain first exceeds

  stress (pounds per square inch)/30,000,000 (pounds per square inch) 
                        +0.005 (inches per inch)

shall be recorded as the elastic limit.
    (1) Elongation shall be at least 18 percent and reduction of area at 
least 35 percent.

    Note 1: Upon approval, the ratio of elastic limit to ultimate 
strength may be raised to permit use of special alloy steels of definite 
composition that will give equal or better physical properties than 
steels herein specified.

    (2) [Reserved]
[Amdt. 179-8, 36 FR 18470, Sept. 15, 1971]



Sec. 179.500-8  Openings in tanks.

    (a) Each end shall be closed by a cover made of forged steel. Covers 
shall be secured to ends of tank by through bolts or studs not entering 
interior of tank. Covers shall be of a thickness sufficient to meet test 
requirements of Sec. 179.500-12 and to compensate for the openings 
closed by attachments prescribed herein.
    (1) It is also provided that each end may be closed by internal 
threading to accommodate an approved fitting. The internal threads as 
well as the threads on fittings for these openings shall be clean cut, 
even, without checks, and tapped to gauge. Taper threads are required 
and shall be of a length not less than as specified for American 
Standard taper pipe threads. External threading of an approved type 
shall be

[[Page 979]]

permissible on the internal threaded ends.
    (b) Joints between covers and ends and between cover and attachments 
shall be of approved form and made tight against vapor or liquid leakage 
by means of a confined gasket of suitable material.



Sec. 179.500-10  Protective housing.

    (a) Safety devices, and loading and unloading valves on tanks shall 
be protected from accidental injury by approved metal housing, arranged 
so it may be readily opened to permit inspection and adjustment of 
safety relief devices and valves, and securely locked in closed 
position. Housing shall be provided with opening having an opening equal 
to twice the total discharge area of safety relief device enclosed.
    (b) [Reserved]



Sec. 179.500-11  Loading and unloading valves.

    (a) Loading and unloading valve or valves shall be mounted on the 
cover or threaded into the marked end of tank. These valves shall be of 
approved type, made of metal not subject to rapid deterioration by 
lading or in service, and shall withstand without leakage a pressure 
equal to the marked test pressure of tank. Provision shall be made for 
closing service outlet of valves.
    (b) [Reserved]



Sec. 179.500-12  Safety relief devices.

    (a) Tank shall be equipped with one or more safety relief devices of 
approved type and discharge area, mounted on the cover or threaded into 
the non-marked end of the tank. If fittings are mounted on a cover, they 
shall be of the flanged type, made of metal not subject to rapid 
deterioration by lading or in service. Total flow capacity shall be such 
that, with tank filled with air at pressure equal to 70 percent of the 
marked test pressure of tank, flow capacity will be sufficient to reduce 
air pressure to 30 percent of the marked test pressure within 3 minutes 
after safety relief device opens.
    (b) Safety relief devices shall open at pressure not exceeding the 
marked test pressure of tank and not less than \7/10\ of marked test 
pressure. (For tolerance for safety relief valves, see Sec. 179.500-
16(a).)
    (c) Cars used for the transportation of flammable gases shall have 
the safety devices equipped with an approved ignition device.



Sec. 179.500-13  Fixtures.

    (a) Attachments, other than those mounted on tank covers or serving 
as threaded closures for the ends of the tank, are prohibited.
    (b) [Reserved]



Sec. 179.500-14  Test of tanks.

    (a) After heat-treatment, tanks shall be subjected to hydrostatic 
tests in a water jacket, or by other accurate method, operated so as to 
obtain reliable data. No tank shall have been subjected previously to 
internal pressure greater than 90 percent of the marked test pressure. 
Each tank shall be tested to a pressure at least equal to the marked 
test pressure of the tank. Pressure shall be maintained for 30 seconds, 
and sufficiently longer to insure complete expansion of tank. Pressure 
gauge shall permit reading to accuracy of one percent. Expansion gauge 
shall permit reading of total expansion to accuracy of one percent. 
Expansion shall be recorded in cubic centimeters.
    (b) No leaks shall appear and permanent volumetric expansion shall 
not exceed 10 percent of the total volumetric expansion at test 
pressure.



Sec. 179.500-15  Handling of tanks failing in tests.

    (a) Tanks rejected for failure in any of the tests prescribed may be 
reheat-treated, and will be acceptable if subsequent to reheat-treatment 
they are subjected to and pass all of the tests.
    (b) [Reserved]



Sec. 179.500-16  Tests of safety relief devices.

    (a) Safety relief valves shall be tested by air or gas before being 
put into service. Valve shall open at pressure not exceeding the marked 
test pressure of tank and shall be vapor-tight at 80 percent of the 
marked test pressure. These limiting pressures shall not be affected by 
any auxiliary closure or other combination.

[[Page 980]]

    (b) For safety relief devices of frangible disc type, samples of 
discs used shall burst at a pressure not exceeding the marked test 
pressure of tank and not less than \7/10\ of marked test pressure.



Sec. 179.500-17  Marking.

    (a) Each tank shall be plainly and permanently marked, thus 
certifying that tank complies with all requirements of this 
specification. These marks shall be stamped into the metal of necked-
down section of tank at marked end, in letters and figures at least \1/
4\ inch high, as follows:
    (1) Spec. DOT-107A * * * *, the * * * * to be replaced by figures 
indicating marked test pressure of the tank. This pressure shall not 
exceed the calculated maximum marked test pressure permitted, as 
determined by the formula in Sec. 179.500-4(b).
    (2) Serial number immediately below the stamped mark specified in 
paragraph (a)(1) of this section.
    (3) Inspector's official mark immediately below the stamped mark 
specified in paragraph (a)(1) of this section.
    (4) Name, mark (other than trademark), or initials of company or 
person for whose use tank is being made, which shall be recorded with 
the Bureau of Explosives.
    (5) Date (such as 1-62, for January 1962) of tank test, so placed 
that dates of subsequent tests may easily be added thereto.
    (6) Date (such as 1-62, for January 1962) of latest test of safety 
relief valve or of frangible disc, required only when tank is used for 
transportation of flammable gases.
    (b) [Reserved]
[29 FR 18995, Dec. 29, 1964, as amended by Amdt. 179-52, 61 FR 28682, 
June 5, 1996]



Sec. 179.500-18  Inspection and reports.

    (a) Before a tank car is placed in service, the party assembling the 
completed car shall furnish to car owner, Bureau of Explosives, and the 
Secretary, Mechanical Division, Association of American Railroads, a 
report in proper form certifying that tanks and their equipment comply 
with all the requirements of this specification and including 
information as to serial numbers, dates of tests, and ownership marks on 
tanks mounted on car structure.
    (b) Purchaser of tanks shall provide for inspection by a competent 
inspector as follows:
    (1) Inspector shall carefully inspect all material and reject that 
not complying with Sec. 179.500-5.
    (2) Inspector shall stamp his official mark on each forging or 
seamless tube accepted by him for use in making tanks, and shall verify 
proper application of heat number to such material by occasional 
inspections at steel manufacturer's plant.
    (3) Inspector shall obtain certified chemical analysis of each heat 
of material.
    (4) Inspector shall make inspection of inside surface of tanks 
before necking-down, to insure that no seams, cracks, laminations, or 
other defects exist.
    (5) Inspector shall fully verify compliance with specification, 
verify heat treatment of tank as proper; obtain samples for all tests 
and check chemical analyses; witness all tests; and report minimum 
thickness of tank wall, maximum inside diameter, and calculated value of 
D, for each end of each tank as prescribed in Sec. 179.500-4(c).
    (6) Inspector shall stamp his official mark on each accepted tank 
immediately below serial number, and make certified report (see 
paragraph (c) of this section) to builder, to company or person for 
whose use tanks are being made, to builder of car structure on which 
tanks are to be mounted, to the Bureau of Explosives, and to the 
Secretary, Mechanical Division, Association of American Railroads.
    (c) Inspector's report required herein shall be in the following 
form:

        (Place)_________________________________________________________
        (Date)__________________________________________________________

                               Steel Tanks

    It is hereby certified that drawings were submitted for these tanks 
under AAR Application for Approval ------------ and approved by the AAR 
Committee on Tank Cars under date of ------------.
Built for ------------------------ Company
 Location at____________________________________________________________
Built by ------------------------ Company
 Location at____________________________________________________________
Consigned to ------------------ Company
 Location at____________________________________________________________
 Quantity_______________________________________________________________

[[Page 981]]

 Length (inches)________________________________________________________
 Outside diameter (inches)______________________________________________
Marks stamped into tank as required in Sec. 179.500-17 are:

                             DOT-107A* * * *

    Note 1: The marked test pressure substituted for the * * * * on each 
tank is shown on Record of General Data on Tanks attached hereto.

Serial numbers ---- to ---- inclusive
 Inspector's mark_______________________________________________________
 Owner's mark___________________________________________________________
 Test date______________________________________________________________
Water capacity (see Record of Hydrostatic Tests).
Tare weights (yes or no) (see Record of Hydrostatic Tests).
 These tanks were made by process of____________________________________
    Steel used was identified as indicated by the attached list showing 
the serial number of each tank, followed by the heat number.
    Steel used was verified as to chemical analysis and record thereof 
is attached hereto. Heat numbers were stamped into metal. All material 
was inspected and each tank was inspected both before and after closing 
in ends; all material accepted was found free from seams, cracks, 
laminations, and other defects which might prove injurious to strength 
of tank. Processes of manufacture and heat-treatment of tanks were 
witnessed and found to be efficient and satisfactory.
    Before necking-down ends, each tank was measured at each location 
prescribed in Sec. 179.500-4(c) and minimum wall thickness in inches at 
each location was recorded; maximum inside diameter in inches at each 
location was recorded; value of D in inches at each location was 
calculated and recorded; maximum fiber stress in wall at location 
showing larger value for

     (D 2+d 2)/(D 2-d 2)

was calculated for \7/10\ the marked test pressure and recorded. 
Calculations were made by the formula:

 S=[0.7P(D 2-d 2)/(D 2+d 2)]

    Hydrostatic tests, tensile test of material, and other tests as 
prescribed in this specification, were made in the presence of the 
inspector, and all material and tanks accepted were found to be in 
compliance with the requirements of this specification. Records thereof 
are attached hereto.
    I hereby certify that all of these tanks proved satisfactory in 
every way and comply with the requirements of Department of 
Transportation Specification No. 107A* * * *.

        (Signed)________________________________________________________
                                                             (Inspector)
        (Place)_________________________________________________________
        (Date)__________________________________________________________

             Record of Chemical Analysis of Steel for Tanks

Numbered -------- to -------- inclusive
Size ---- inches outside diameter by ----inches long
Built by ------------------------ Company
For ------------------------------ Company

------------------------------------------------------------------------
              Tanks                     Chemical analysis               
  Heat     represented  ------------------------------------------------
  No.     (serial Nos.)    C     Mn     P     S    Si    Ni    Cr    Mo 
------------------------------------------------------------------------
                                                                        
------------------------------------------------------------------------

These analyses were made by
        (Signed)________________________________________________________
        (Place)_________________________________________________________
        (Date)__________________________________________________________

              Record of Chemical Analysis of Steel in Tanks

Numbered -------- to -------- inclusive
Size ---- inches outside by ---- inches long
Built by ------------------------ Company
For ------------------------------ Company

------------------------------------------------------------------------
                         Elastic                                        
             Tanks        limit      Tensile                            
  Heat    represented    (pounds    strength    Elongation    Reduction 
  No.       by test        per       (pounds    (percent in    of area  
         (serial Nos.)    square   per square    2 inches)    (percent) 
                          inch)       inch)                             
------------------------------------------------------------------------
                                                                        
------------------------------------------------------------------------

        (Signed)________________________________________________________
                                                                          
        (Place).........................................................
                                                                          
          (Date)........................................................

                                      Record of Hydrostatic Tests on Tanks                                      
                                                                                                                
                                                                                                                
                                                                                                                
Numbered.................................  to...........................  inclusive                             
Size.....................................  inches outside by............  .........  inches long                
Built by...........................................................................  Company                    
For......................................  Company......................                                        

[[Page 982]]

                                                                                                                
                                                                                                                


----------------------------------------------------------------------------------------------------------------
                                                                 Percent ratio of                               
                Actual test   Total expansion     Permanent         permanent                        Capacity in
 Serial Nos.      pressure         (cubic         expansion        expansion to      Tare weight      pounds of 
   of tanks     (pounds per     centimeters)        (cubic       total expansion    (pounds)  \2\    water at 60
                square inch)                     centimeters)          \1\                             deg. F   
----------------------------------------------------------------------------------------------------------------
                                                                                                                
                                                                                                                
                                                                                                                
----------------------------------------------------------------------------------------------------------------
\1\ If tests are made by method involving measurement of amount of liquid forced into tank by test pressure,    
  then the basic data on which calculations are made, such as pump factors, temperature of liquid, coefficient  
  of compressibility of liquid, etc., must also be given.                                                       
\2\ Do not include protective housing, but state whether with or without valves.                                

                                                                          
      (Signed)..........................................................
                                                                          
        (Place).........................................................
                                                                          
          (Date)........................................................

                                         Record of General Data on Tanks                                        
                                                                                                                
                                                                                                                
                                                                                                                
Numbered.................................  to...........................  inclusive                             
Built by...........................................................................  Company                    
For......................................  Company......................                                        
                                                                                                                


--------------------------------------------------------------------------------------------------------------------------------------------------------
                         Data obtained as prescribed in Sec.  179.500-4(c)                                            (S)                               
---------------------------------------------------------------------------------------------------                Calculated   Marked test    Minimum  
                   Marked end of tank                                Other end of tank                 Larger     fiber stress  pressure in    tensile  
---------------------------------------------------------------------------------------------------   value of   in pounds per   pounds per  strength of
               (t) Min.      (d) Max.                     (t) Minimum  (d) Maximum                   the factor   square inch   square inch  material in
Serial No.   thickness of     inside     (D) Calculated  thickness of     inside    (D) calculated  D 2+d 2/D 2- at 7/1603/81/   stamped in   pounds per
  of tank      wall in      diameter in   value of D in     wall in    diameter in   value of D in      d 2      8 marked test      tank     square inch
                inches        inches       inches=d+2t      inches        inches      inches=d+2t                   pressure                   recorded 
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                        
                                                                                                                                                        
--------------------------------------------------------------------------------------------------------------------------------------------------------

                                                                          
      (Signed)..........................................................

  Appendix A to Part 179--Procedures for Tank-Head Puncture-Resistance 
                                  Test

    1. This test procedure is designed to verify the integrity of new or 
untried tank-head puncture-resistance systems and to test for system 
survivability after coupler-to-tank-head impacts at relative speeds of 
29 km/hour (18 mph). Tank-head puncture-resistance is a function of one 
or more of the following: Head thickness, jacket thickness, insulation 
thickness, and material of construction.
    2. Tank-head puncture-resistance test. A tank-head puncture-
resistance system must be tested under the following conditions:
    a. The ram car used must weigh at least 119,295 kg (263,000 pounds), 
be equipped with a coupler, and duplicate the condition of a 
conventional draft sill including the draft yoke and draft gear. The 
coupler must protrude from the end of the ram car so that it is the 
leading location of perpendicular contact with the impacted test car.
    b. The impacted test car must be loaded with water at six percent 
outage with internal pressure of at least 6.9 Bar (100 psi) and coupled 
to one or more ``backup'' cars which have a total weight of 217,724 kg 
(480,000 pounds) with hand brakes applied on the last ``backup'' car.
    c. At least two separate tests must be conducted with the coupler on 
the vertical centerline of the ram car. One test must be conducted with 
the coupler at a height of 53.3 cm (21 inches), plus-or-minus 2.5 cm (1 
inch), above the top of the sill; the other test must be conducted with 
the coupler height at 79 cm (31 inches), plus-or-minus 2.5 cm (1 inch), 
above the top of the sill. If the combined thickness of the tank head 
and any additional shielding material is less than the combined 
thickness on the vertical centerline of the car, a third test must be 
conducted with the coupler positioned so as to strike the thinnest point 
of the tank head.
    3. One of the following test conditions must be applied:

------------------------------------------------------------------------
                                   Minimum velocity                     
 Minimum weight of attached ram    of impact in km/      Restrictions   
       cars in kg (pounds)            hour (mph)                        
------------------------------------------------------------------------
119,295 (263,000)...............  29 (18)..........  One ram car only.  
155,582 (343,000)...............  25.5 (16)........  One ram car or one 
                                                      car plus one      
                                                      rigidly attached  
                                                      car.              
311,164 (686,000)...............  22.5 (14)........  One ram car plus   
                                                      one or more       
                                                      rigidly attached  
                                                      cars.             

[[Page 983]]

                                                                        
------------------------------------------------------------------------

    4. A test is successful if there is no visible leak from the 
standing tank car for at least one hour after impact.
[Amdt. 179-50, 60 FR 49078, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33256, June 26, 1996]

  Appendix B to Part 179--Procedures for Simulated Pool and Torch-Fire 
                                 Testing

    1. This test procedure is designed to measure the thermal effects of 
new or untried thermal protection systems and to test for system 
survivability when exposed to a 100-minute pool fire and a 30-minute 
torch fire.
    2. Simulated pool fire test.
    a. A pool-fire environment must be simulated in the following 
manner:
    (1) The source of the simulated pool fire must be hydrocarbon fuel 
with a flame temperature of 871  deg.C (1,600  deg.F), plus-or-minus 
37.8  deg.C (100  deg.F), throughout the duration of the test.
    (2) A square bare plate with thermal properties equivalent to the 
material of construction of the tank car must be used. The plate 
dimensions must be not less than one foot by one foot by nominal 1.6 cm 
(0.625 inch) thick. The bare plate must be instrumented with not less 
than nine thermocouples to record the thermal response of the bare 
plate. The thermocouples must be attached to the surface not exposed to 
the simulated pool fire and must be divided into nine equal squares with 
a thermocouple placed in the center of each square.
    (3) The pool-fire simulator must be constructed in a manner that 
results in total flame engulfment of the front surface of the bare 
plate. The apex of the flame must be directed at the center of the 
plate.
    (4) The bare plate holder must be constructed in such a manner that 
the only heat transfer to the back side of the bare plate is by heat 
conduction through the plate and not by other heat paths.
    (5) Before the bare plate is exposed to the simulated pool fire, 
none of the temperature recording devices may indicate a plate 
temperature in excess of 37.8  deg.C (100  deg.F) nor less than 0  deg.C 
(32  deg.F).
    (6) A minimum of two thermocouple devices must indicate 427  deg.C 
(800  deg.F) after 13 minutes, plus-or-minus one minute, of simulated 
pool-fire exposure.
    b. A thermal protection system must be tested in the simulated pool-
fire environment described in paragraph 2a of this appendix in the 
following manner:
    (1) The thermal protection system must cover one side of a bare 
plate as described in paragraph 2a(2) of this appendix.
    (2) The non-protected side of the bare plate must be instrumented 
with not less than nine thermocouples placed as described in paragraph 
2a(2) of this appendix to record the thermal response of the plate.
    (3) Before exposure to the pool-fire simulation, none of the 
thermocouples on the thermal protection system configuration may 
indicate a plate temperature in excess of 37.8  deg.C (100  deg.F) nor 
less than 0  deg.C (32  deg.F).
    (4) The entire surface of the thermal protection system must be 
exposed to the simulated pool fire.
    (5) A pool-fire simulation test must run for a minimum of 100 
minutes. The thermal protection system must retard the heat flow to the 
plate so that none of the thermocouples on the non-protected side of the 
plate indicate a plate temperature in excess of 427  deg.C (800  deg.F).
    (6) A minimum of three consecutive successful simulation fire tests 
must be performed for each thermal protection system.
    3. Simulated torch fire test.
    a. A torch-fire environment must be simulated in the following 
manner:
    (1) The source of the simulated torch must be a hydrocarbon fuel 
with a flame temperature of 1,204  deg.C (2,200  deg.F), plus-or-minus 
37.8  deg.C (100  deg.F), throughout the duration of the test. 
Furthermore, torch velocities must be 64.4 km/h  16 km/h (40 
mph  10 mph) throughout the duration of the test.
    (2) A square bare plate with thermal properties equivalent to the 
material of construction of the tank car must be used. The plate 
dimensions must be at least four feet by four feet by nominal 1.6 cm 
(0.625 inch) thick. The bare plate must be instrumented with not less 
than nine thermocouples to record the thermal response of the plate. The 
thermocouples must be attached to the surface not exposed to the 
simulated torch and must be divided into nine equal squares with a 
thermocouple placed in the center of each square.
    (3) The bare plate holder must be constructed in such a manner that 
the only heat transfer to the back side of the plate is by heat 
conduction through the plate and not by other heat paths. The apex of 
the flame must be directed at the center of the plate.
    (4) Before exposure to the simulated torch, none of the temperature 
recording devices may indicate a plate temperature in excess of 37.8 
deg.C (100  deg.F) or less than 0  deg.C (32  deg.F).
    (5) A minimum of two thermocouples must indicate 427  deg.C (800 
deg.F) in four minutes, plus-or-minus 30 seconds, of torch simulation 
exposure.
    b. A thermal protection system must be tested in the simulated 
torch-fire environment described in paragraph 3a of this appendix in the 
following manner:
    (1) The thermal protection system must cover one side of the bare 
plate identical to that used to simulate a torch fire under paragraph 
3a(2) of this appendix.
    (2) The back of the bare plate must be instrumented with not less 
than nine

[[Page 984]]

thermocouples placed as described in paragraph 3a(2) of this appendix to 
record the thermal response of the material.
    (3) Before exposure to the simulated torch, none of the 
thermocouples on the back side of the thermal protection system 
configuration may indicate a plate temperature in excess of 37.8  deg.C 
(100  deg.F) nor less than 0  deg.C (32  deg.F).
    (4) The entire outside surface of the thermal protection system must 
be exposed to the simulated torch-fire environment.
    (5) A torch-simulation test must be run for a minimum of 30 minutes. 
The thermal protection system must retard the heat flow to the plate so 
that none of the thermocouples on the backside of the bare plate 
indicate a plate temperature in excess of 427  deg.C (800  deg.F).
    (6) A minimum of two consecutive successful torch-simulation tests 
must be performed for each thermal protection system.
[Amdt. 179-50, 60 FR 49078, Sept. 21, 1995]



PART 180--CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS--Table of Contents




                           Subpart A--General

Sec.
180.1  Purpose and scope.
180.2  Applicability.
180.3  General requirements.

                         Subparts B-C [Reserved]

Subpart D--Qualification and Maintenance of Intermediate Bulk Containers

180.350  Applicability.
180.351  Qualification of intermediate bulk containers.
180.352  Requirements for retest and inspection of intermediate bulk 
          containers.

         Subpart E--Qualification and Maintenance of Cargo Tanks

180.401  Applicability.
180.403  Definitions.
180.405  Qualification of cargo tanks.
180.407  Requirements for test and inspection of specification cargo 
          tanks.
180.409  Minimum qualifications for inspectors and testers.
180.411  Acceptable results of tests and inspections.
180.413  Repair, modification, stretching, or rebarrelling of cargo 
          tanks.
180.415  Test and inspection markings.
180.417  Reporting and record retention requirements.

          Subpart F--Qualification and Maintenance of Tank Cars

180.501  Applicability.
180.503  Definitions.
180.505  Quality assurance program.
180.507  Qualification of tank cars.
180.509  Requirements for inspection and test of specification tank 
          cars.
180.511  Acceptable results of inspections and tests.
180.513  Repairs, alterations, conversions, and modifications.
180.515  Markings.
180.517  Reporting and record retention requirements.
180.519  Periodic retest and inspection of tank cars other than single-
          unit tank car tanks.

    Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.

    Source:  Amdt. 180-2, 54 FR 25032, June 12, 1989, unless otherwise 
noted.



                           Subpart A--General



Sec. 180.1  Purpose and scope.

    This part prescribes requirements pertaining to the maintenance, 
reconditioning, repair, inspection and testing of packagings, and any 
other function having an effect on the continuing qualification and use 
of a packaging under the requirements of this subchapter.



Sec. 180.2  Applicability.

    (a) Any person who performs a function prescribed in this part shall 
perform that function in accordance with this part.
    (b) Any person who performs a function prescribed in this part is 
considered subject to the regulations of this subchapter when that 
person--
    (1) Makes any representation indicating compliance with one or more 
of the requirements of this part; or
    (2) Reintroduces into commerce a packaging that bears markings 
indicating compliance with this part.
[Amdt. 180-2, 54 FR 25032, June 12, 1989, as amended by Amdt. 180-2, 56 
FR 27877, June 17, 1991]



Sec. 180.3  General requirements.

    (a) No person may represent, mark, certify, sell, or offer a 
packaging or container as meeting the requirements

[[Page 985]]

of this part, or an exemption pertaining to this part issued under 
subchapter A of this chapter, whether or not the packaging or container 
is intended to be used for the transportation of a hazardous material, 
unless it is marked, maintained, reconditioned, repaired, or retested, 
as appropriate, in accordance with this part, an approval issued 
thereunder, or an exemption issued under subchapter A of this chapter.
    (b) The representations, markings, and certifications subject to the 
prohibitions of paragraph (a) of this section include:
    (1) Identifications that include the letters ``DOT'', ``MC'', 
``ICC'', or ``UN'';
    (2) Exemption, approval, and registration numbers that include the 
letters ``DOT'';
    (3) Test dates displayed in association with specification, 
registration, approval, or exemption markings indicating conformance to 
a test or retest requirement of this subchapter, an approval issued 
thereunder, or an exemption issued under subchapter A of this chapter;
    (4) Documents indicating conformance to the testing, inspection, 
maintenance or other continuing qualification requirements of this part; 
and
    (5) Sales literature, including advertising, indicating that the 
packaging or container represented therein conforms to requirements 
contained in subchapter A or C of this chapter.
[Amdt. 180-2, 54 FR 25032, June 12, 1989, as amended by Amdt. 180-3, 58 
FR 33306, June 16, 1993]



                         Subparts B-C [Reserved]



Subpart D--Qualification and Maintenance of Intermediate Bulk Containers

    Source:  Amdt. 180-5, 59 FR 38079, July 26, 1994, unless otherwise 
noted.



Sec. 180.350  Applicability.

    This subpart prescribes requirements, in addition to those contained 
in parts 107, 171, 172, 173, and 178 of this chapter, applicable to any 
person responsible for the continuing qualification, maintenance, or 
periodic retesting of an intermediate bulk container.



Sec. 180.351  Qualification of intermediate bulk containers.

    (a) General. Each intermediate bulk container used for the 
transportation of hazardous materials must be an authorized packaging.
    (b) Intermediate bulk container specifications. To qualify as an 
authorized packaging, each intermediate bulk container must conform to 
this subpart, the applicable requirements specified in part 173 of this 
subchapter, and the applicable requirements of subparts N and O of part 
178 of this subchapter.



Sec. 180.352  Requirements for retest and inspection of intermediate bulk containers.

    (a) General. Each intermediate bulk container constructed in 
accordance with a UN standard for which a test or inspection specified 
in paragraphs (b)(1), (b)(2) and (b)(3) of this section is required may 
not be filled and offered for transportation or transported until the 
test or inspection has been successfully completed. This paragraph does 
not apply to any intermediate bulk container filled prior to the test or 
inspection due date. The requirements in this section do not apply to 
DOT 56 and 57 portable tanks.
    (b) Test and inspections for metal, rigid plastic, and composite 
intermediate bulk containers. Each intermediate bulk container is 
subject to the following test and inspections:
    (1) The leakproofness test prescribed in Sec. 178.813 of this 
subchapter must be conducted every 2.5 years starting from the date of 
manufacture marked on each intermediate bulk container intended to 
contain liquids or intended to contain solids that are loaded or 
discharged under pressure.
    (2) An external visual inspection must be conducted initially after 
production and every 2.5 years starting from the date of manufacture on 
each intermediate bulk container to ensure that:
    (i) The intermediate bulk container is marked in accordance with 
requirements in Sec. 178.703 of this subchapter. Missing or damaged 
markings, or

[[Page 986]]

markings difficult to read must be restored or returned to original 
condition.
    (ii) Service equipment is fully functional and free from damage 
which may cause failure. Missing, broken, or damaged parts must be 
repaired or replaced.
    (iii) The intermediate bulk container, including the outer packaging 
if applicable, is free from damage which reduces its structural 
integrity. The intermediate bulk container must be externally inspected 
for cracks, warpage, corrosion or any other damage which might render 
the intermediate bulk container unsafe for transportation. An 
intermediate bulk container found with such defects must be removed from 
service. The inner receptacle of a composite intermediate bulk container 
must be removed from the outer intermediate bulk container body for 
inspection unless the inner receptacle is bonded to the outer body or 
unless the outer body is constructed in such a way (e.g., a welded or 
riveted cage) that removal of the inner receptacle is not possible 
without impairing the integrity of the outer body. Defective inner 
receptacles must be replaced with a receptacle meeting the design type 
of the intermediate bulk container or the entire intermediate bulk 
container must be replaced. For metal intermediate bulk containers, 
thermal insulation must be removed to the extent necessary for proper 
examination of the intermediate bulk container body.
    (3) Each metal intermediate bulk container must be internally 
inspected at least every five years to ensure that the intermediate bulk 
container is free from damage which might reduce its structural 
integrity.
    (i) The intermediate bulk container must be internally inspected for 
cracks, warpage, and corrosion or any other defect that might render the 
intermediate bulk container unsafe for transportation. An intermediate 
bulk container found with such defects must be removed from hazardous 
materials service until restored to the original design type of the 
intermediate bulk container.
    (ii) Metal intermediate bulk containers must be inspected to ensure 
the minimum wall thickness requirements in Sec. 178.705(c)(1)(iv)(A) of 
this subchapter are met. Metal intermediate bulk containers not 
conforming to minimum wall thickness requirements must be removed from 
hazardous materials service.
    (c) Initial visual inspection for flexible, fiberboard, or wooden 
intermediate bulk containers. Each intermediate bulk container must be 
visually inspected prior to first use, by the person who places 
hazardous materials in the intermediate bulk container, to ensure that:
    (1) The intermediate bulk container is marked in accordance with 
requirements in Sec. 178.703 of this subchapter. Additional marking 
allowed for each design type may be present. Required markings that are 
missing, damaged or difficult to read must be restored or returned to 
original condition.
    (2) Proper construction and design specifications have been met.
    (i) Each flexible intermediate bulk container must be inspected to 
ensure that:
    (A) Lifting straps if used, are securely fastened to the 
intermediate bulk container in accordance with the design type.
    (B) Seams are free from defects in stitching, heat sealing or gluing 
which would render the intermediate bulk container unsafe for 
transportation of hazardous materials. All stitched seam-ends must be 
secure.
    (C) Fabric used to construct the intermediate bulk container is free 
from cuts, tears and punctures. Additionally, fabric must be free from 
scoring which may render the intermediate bulk container unsafe for 
transport.
    (ii) Each fiberboard intermediate bulk container must be inspected 
to ensure that:
    (A) Fluting or corrugated fiberboard is firmly glued to facings.
    (B) Seams are creased and free from scoring, cuts, and scratches.
    (C) Joints are appropriately overlapped and glued, stitched, taped 
or stapled as prescribed by the design. Where staples are used, the 
joints must be inspected for protruding staple-ends which could puncture 
or abrade the inner liner. All such ends must be protected before the 
intermediate bulk

[[Page 987]]

container is authorized for hazardous materials service.
    (iii) Each wooden intermediate bulk container must be inspected to 
ensure that:
    (A) End joints are secured in the manner prescribed by the design.
    (B) Intermediate bulk container walls are free from defects in wood. 
Inner protrusions which could puncture or abrade the liner must be 
covered.
    (d) Retest date. The date of the most recent periodic retest must be 
marked as provided in Sec. 178.703(b) of this subchapter.
    (e) Record retention. The intermediate bulk container owner or 
lessee shall keep records of periodic retests and initial and periodic 
inspections. Records must include design types and packaging 
specifications, test and inspection dates, name and address of test and 
inspection facilities, names or name of any persons conducting tests or 
inspections, and test or inspection specifics and results. Records must 
be kept for each packaging at each location where periodic tests are 
conducted, until such tests are successfully performed again or for at 
least 2.5 years from the date of the last test. These records must be 
made available for inspection by a representative of the Department on 
request.



         Subpart E--Qualification and Maintenance of Cargo Tanks



Sec. 180.401  Applicability.

    This subpart prescribes requirements, in addition to those contained 
in parts 107, 171, 172, 173 and 178 of this subchapter, applicable to 
any person responsible for the continuing qualification, maintenance or 
periodic testing of a cargo tank.
[Amdt. 180-2, 54 FR 25032, June 12, 1989, as amended at 55 FR 37065, 
Sept. 7, 1990]



Sec. 180.403  Definitions.

    In addition to the definitions contained in Secs. 171.8 and 178.345-
1 of this subchapter, the following definitions apply to this subpart:
    Corrosive to the tank/valve means a lading meets the criteria for 
corrosivity specified in Sec. 173.136 of this subchapter, for the 
material of construction of the tank or valve; or the lading has been 
shown through experience to be corrosive to the tank or valve.
    Modification means any change to the original design and 
construction of a cargo tank or a cargo tank motor vehicle which affects 
its structural integrity or lading retention capability. Any 
modification which involves welding on the cargo tank wall also must 
meet all requirements for ``Repair'' as defined in this section. 
Excluded from this category are the following:
    (1) A change to motor vehicle equipment such as lights, truck or 
tractor power train components, steering and brake systems, and 
suspension parts, and changes to appurtenances, such as fender 
attachments, lighting brackets, ladder brackets; and
    (2) Replacement of components such as valves, vents, and fittings 
with a component of a similar design and of the same size.
    Owner means the person who owns a cargo tank motor vehicle used for 
the transportation of hazardous materials, or that person's authorized 
agent.
    Rebarrelling means replacing more than 50 percent of the combined 
shell and head material of a cargo tank.
    Repair means any welding on a cargo tank wall done to return a cargo 
tank or a cargo tank motor vehicle to its original design and 
construction specification, or to a condition prescribed for a later 
equivalent specification in effect at the time of the repair. Excluded 
from this category are the following:
    (1) A change to motor vehicle equipment such as lights, truck or 
tractor power train components, steering and brake systems, and 
suspension parts, and changes to appurtenances, such as fender 
attachments, lighting brackets, ladder brackets; and
    (2) Replacement of components such as valves, vents, and fittings 
with a component of a similar design and of the same size.
    (3) Replacement of an appurtenance by welding to a mounting pad.
    Replacement of a barrel means to replace the existing tank on a 
motor vehicle chassis with an unused (new) tank. For the definition of 
tank, see

[[Page 988]]

Sec. 178.345-1(c), Sec. 178.337-1, or Sec. 178.338-1 of this subchapter, 
as applicable.
    Stretching means any change in length, width or diameter of the 
cargo tank, or any change to a cargo tank motor vehicle's undercarriage 
that may affect the cargo tank's structural integrity.
[Amdt. 180-2, 54 FR 25032, June 12, 1989, as amended at 55 FR 37065, 
Sept. 7, 1990; Amdt. 180-3, 57 FR 45466, Oct. 1, 1992; Amdt. 180-7, 59 
FR 55177, Nov. 3, 1994; 60 FR 17402, Apr. 5, 1995; Amdt. 180-10, 61 FR 
51342, Oct. 1, 1996]



Sec. 180.405  Qualification of cargo tanks.

    (a) General. Unless otherwise provided in this subpart, each cargo 
tank used for the transportation of hazardous material must be an 
authorized packaging.
    (b) Cargo tank specifications. To qualify as an authorized 
packaging, each cargo tank must conform to this subpart, the applicable 
requirements specified in part 173 of this subchapter for the specific 
lading and, where a DOT specification cargo tank is required, an 
applicable specification in effect on the date the initial construction 
began: MC 300, MC 301, MC 302, MC 303, MC 304, MC 305, MC 306, MC 307, 
MC 310, MC 311, MC 312, MC 330, MC 331, MC 338, DOT 406, DOT 407, or DOT 
412 (Sec. 178.337, Sec. 178.338, Sec. 178.345, Sec. 178.346, 
Sec. 178.347, Sec. 178.348 of this subchapter). However, no cargo tank 
may be marked or certified after August 31, 1995, to the applicable MC 
306, MC 307, MC 312, MC 331 or MC 338 specification in effect on 
December 30, 1990.
    (c) Cargo tank specifications no longer authorized for construction. 
(1) A cargo tank made to a specification listed in Column 1 may be used 
when authorized in this part, provided the cargo tank was marked or 
certified before the date listed in Column 2:

------------------------------------------------------------------------
                Column 1                             Column 2           
------------------------------------------------------------------------
MC 300..................................  Sept. 2, 1967.                
MC 301..................................  June 12, 1961.                
MC 302, MC 303, MC 304, MC 305, MC 310,   Sept. 2, 1967.                
 MC 311.                                                                
MC 330..................................  May 15, 1967.                 
MC 306, MC 307, MC 312..................  Sept. 1, 1995.                
------------------------------------------------------------------------

    (2) A cargo tank of a specification listed in paragraph (c)(1) of 
this section may have its pressure relief devices and outlets modified 
as follows:
    (i) A Specification MC 300, MC 301, MC 302, MC 303, or MC 305 cargo 
tank, to conform with a Specification MC 306 or DOT 406 cargo tank (See 
Secs. 178.346-10 and 178.346-11 of this subchapter).
    (ii) A Specification MC 306 cargo tank to conform to a Specification 
DOT 406 cargo tank (Secs. 178.346-10 and 178.346-11 of this subchapter).
    (iii) A Specification MC 304 cargo tank, to conform with a 
Specification MC 307 or DOT 407 cargo tank (See Secs. 178.347-10 and 
178.347-11 of this subchapter).
    (iv) A Specification MC 307 cargo tank, to conform with a 
Specification DOT 407 cargo tank (See Secs. 178.347-10 and 178.347-11 of 
this subchapter).
    (v) A Specification MC 310 or MC 311 cargo tank, to conform with a 
Specification MC 312 or DOT 412 cargo tank (See Secs. 178.348-10 and 
178.348-11 of this subchapter).
    (vi) A Specification MC 312 cargo tank, to conform with a 
Specification DOT 412 cargo tank (See Secs. 178.348-10 and 178.348-11 of 
this subchapter).
    (vii) A Specification MC 330 cargo tank, to conform with a 
Specification MC 331 cargo tank, except as specifically required by 
Sec. 173.315 of this subchapter (see Secs. 178.337-8 and 178.337-9 of 
this subchapter).
    (d) MC 338 cargo tank. The owner of a cargo tank that conforms to 
and was used under the terms of an exemption issued before October 1, 
1984, that authorizes the transportation of a cryogenic liquid shall 
remove the exemption number stenciled on the cargo tank and stamp the 
specification plate (or a plate placed adjacent to the specification 
plate) ``DOT MC 338'' followed by the exemption number, for example, 
``DOT MC 338-E * * * *''. (Asterisks to be replaced by the exemption 
number). The cargo tank must be remarked prior to the expiration date of 
the exemption. During the period the cargo tank is in service, the owner 
of a cargo tank that is remarked in this manner must retain at its 
principal place of business a copy of the last exemption in effect. No 
new construction of cargo tanks pursuant to such exemption is 
authorized.
    (1) The holding time must be determined, as required in 
Sec. 178.338-9 of this subchapter, on each cargo tank or on

[[Page 989]]

at least one cargo tank of each design. Any subsequent cargo tank 
manufactured to the same design type (see Sec. 178.320), if not 
individually tested, must have the optional test regimen performed 
during the first shipment (see Sec. 178.338-9 (b) and (c) of this 
subchapter).
    (2) The holding time determined by test for one authorized cryogenic 
liquid may be used as the basis for establishing the holding time for 
other authorized cryogenic liquids.
    (e) MC 331 cargo tanks. The owner of a MC 331 (Sec. 178.337 of this 
subchapter) cargo tank that conforms to and was used under an exemption 
issued before October 1, 1984, that authorizes the transportation of 
ethane, refrigerated liquid; ethane-propane mixture, refrigerated 
liquid; or hydrogen chloride, refrigerated liquid shall remove the 
exemption number stenciled on the cargo tank and stamp the exemption 
number on the specification plate (or a plate placed adjacent to the 
specification plate), immediately after the DOT Specification, for 
example, ``DOT MC 331-E * * * *''. (Asterisks to be replaced by the 
exemption number.) The cargo tank must be remarked prior to the 
expiration date of the exemption. During the period the cargo tank is in 
service, the owner of a cargo tank that is remarked in this manner must 
retain at the owner's principal place of business a copy of the last 
exemption in effect.
    (f) MC 306, MC 307, MC 312 cargo tanks. Either a Registered 
Inspector or a Design Certifying Engineer and the owner of a MC 306, MC 
307 or MC 312 cargo tank motor vehicle constructed in accordance with 
and used under an exemption issued before December 31, 1990, that 
authorizes a condition specified in this paragraph shall examine the 
cargo tank motor vehicle and its design to determine if it meets the 
requirements of the applicable MC 306, MC 307 or MC 312 specification in 
effect at the time of manufacture, except as specified herein.
    (1) A cargo tank motor vehicle constructed after August 1, 1981, or 
the date specified in the applicable exemption, in conformance with the 
following conditions that apply, may be remarked and certified in 
accordance with paragraphs (f) (5) and (6) of this section:
    (i) A vacuum-loaded cargo tank must have an ASME Code stamped 
specification plate marked with a minimum internal design pressure of 25 
psig, and be designed for a minimum external design pressure of 15 psig.
    (ii) An outlet equipped with a self-closing system which includes an 
external stop-valve must have the stop valve and associated piping 
protected within the vehicle's rear-end tank protection device, vehicle 
frame or an equally adequate accident damage protection device (See 
Sec. 178.345-8 of this subchapter.) The self-closing system (See 
Sec. 178.345-11 of this subchapter) must be equipped with a remotely 
actuated means of closure as follows:
    (A) For a cargo tank used in other than corrosive service, the 
remote means of closure must be activated for closure by manual or 
mechanical means and, in case of fire, by an automatic heat activated 
means.
    (B) For a cargo tank used in corrosive service, the remote means of 
closure may be actuated by manual or mechanical means only.
    (iii) A cargo tank having an unreinforced portion of the shell 
exceeding 60 inches must have the circumferential reinforcement located 
so that the thickness and tensile strength of shell material in 
combination with the frame and circumferential reinforcement produces a 
structural integrity at least equal to that prescribed in Sec. 178.345-3 
of this subchapter or the specification in effect at time of 
manufacture.
    (iv) A cargo tank having a projection from the tank shell or head 
that may contain lading in any tank position is authorized, provided 
such projection is as strong as the tank shell or head and is located 
within the motor vehicle's rear-end tank protection or other appropriate 
accident damage protection device.
    (v) A cargo tank may be constructed of nickel, titanium, or other 
ASME sheet or plate materials in accordance with an exemption.
    (2) A vacuum-loaded cargo tank constructed after August 1, 1981, or 
the date specified in the applicable exemption, in conformance with 
paragraph

[[Page 990]]

(f)(1) of this section, except that an outlet equipped with an external 
valve which is not part of a self-closing system:
    (i) Must be equipped with a self-closing system prior to September 
1, 1993.
    (ii) May be remarked and certified in accordance with paragraphs 
(f)(5) and (6) of this section after the cargo tank motor vehicle has 
been equipped with the self-closing system.
    (3) A vacuum-loaded cargo tank constructed prior to August 1, 1981, 
in conformance with paragraph (f)(1) of this section, except for 
paragraph (f)(1)(i), may be remarked and certified in accordance with 
paragraphs (f) (5) and (6) of this section.
    (4) A vacuum-loaded cargo tank constructed prior to August 1, 1981, 
in conformance with paragraph (f)(1) of this section, except for 
paragraph (f)(1)(i) of this section, and except that an outlet is 
equipped with an external valve which is not part of a self-closing 
system:
    (i) Must be equipped with a self-closing system prior to September 
1, 1993.
    (ii) May be remarked and certified in accordance with paragraphs 
(f)(5) and (6) of this section after the cargo tank motor vehicle has 
been equipped with the self-closing system.
    (5) The owner of a cargo tank for which a determination has been 
made that the cargo tank is in conformance with paragraph (f) (1), (2), 
(3), or (4) of this section shall complete a written certification, in 
English, signed by the owner and containing at least the following 
information:
    (i) A statement certifying that each cargo tank conforms to 
Sec. 180.405 (f) (1), (2), (3), or (4);
    (ii) The applicable DOT exemption number, the applicable 
specification number and the owner's and manufacturer's serial number 
for the cargo tank;
    (iii) A statement setting forth any modifications made to bring the 
cargo tank into conformance with Sec. 180.405(f) (1), (2), (3), or (4), 
or the applicable specification;
    (iv) A statement identifying the person certifying the cargo tank 
and the date of certification.
    (6) The owner of a certified cargo tank shall remove the exemption 
number stenciled on the cargo tank and shall durably mark the 
specification plate (or a plate placed adjacent to the specification 
plate) ``MC +++-E ****'' (where ``+++'' is to be replaced by the 
applicable specification number, ``* * * *'' by the exemption number and 
``   '' by the alloy.)
    (7) During the period the cargo tank is in service, and for one year 
thereafter, the owner of a cargo tank that is certified and remarked in 
this manner must retain on file at its principal place of business a 
copy of the certificate and the last exemption in effect.
    (g) Cargo tank manhole assemblies. (1) MC 306, MC 307, and MC 312 
cargo tanks marked or certified after December 30, 1990, and DOT 406, 
DOT 407, and DOT 412 cargo tank motor vehicles must be equipped with 
manhole assemblies conforming with Sec. 178.345-5 of this subchapter.
    (2) On or before August 31, 1995, each owner of a cargo tank marked 
or certified before December 31, 1990, authorized for the transportation 
of a hazardous material, must have the cargo tank equipped with manhole 
assemblies conforming with Sec. 178.345-5, except for the dimensional 
requirements in Sec. 178.345-5(a), the hydrostatic testing requirements 
in Sec. 178.345-5(b), and the marking requirements in Sec. 178.345-5(e) 
of this subchapter. A manhole assembly meeting one of the following 
provisions is considered to be in compliance with this paragraph:
    (i) Manhole assemblies on MC 300, MC 301, MC 302, MC 303, MC 305, MC 
306, MC 310, MC 311 and MC 312 cargo tanks which are marked or certified 
in writing as conforming to Sec. 178.345-5 of this subchapter or TTMA RP 
No. 61, or are tested and certified in accordance with TTMA TB No. 107.
    (ii) Manhole assemblies on MC 304 and MC 307 cargo tanks.
    (iii) Manhole assemblies on MC 310, MC 311, and MC 312 cargo tanks 
with a test pressure of 36 psig or greater.
    (3) The owner of five or more DOT specification cargo tanks 
requiring retrofit or certification of the manhole closure must retrofit 
or certify at least 20 percent of the affected cargo tanks each year 
beginning in 1991 until all affected manhole closures on cargo tanks 
have been retrofitted or certified. The

[[Page 991]]

owner of fewer than 5 DOT specification cargo tanks has until August 31, 
1995 to retrofit or certify the manhole closures.
    (h) Pressure relief system. Properly functioning reclosing pressure 
relief valves and frangible or fusible vents need not be replaced. 
However, replacement of reclosing pressure relief valves on MC-
specification cargo tanks is authorized subject to the following 
requirements:
    (1) Until August 31, 1998, the owner of a cargo tank may replace a 
reclosing pressure relief device with a device which is in compliance 
with the requirements for pressure relief devices in effect at the time 
the cargo tank specification became superseded. If the pressure relief 
device is installed as an integral part of a manhole cover assembly, the 
manhole cover must comply with the requirements of paragraph (g) of this 
section.
    (2) After August 31, 1998, replacement for any reclosing pressure 
relief valve must be capable of reseating to a leak-tight condition 
after a pressure surge, and the volume of lading released may not exceed 
one liter. Specific performance requirements for these pressure relief 
valves are set forth in Sec. 178.345-10(b)(3) of this subchapter.
    (3) As provided in paragraph (c)(2) of this section, the owner of a 
cargo tank may elect to modify reclosing pressure relief devices to more 
recent cargo tank specifications. However, replacement devices 
constructed to the requirements of Sec. 178.345-10 of this subchapter 
must provide the minimum venting capacity required by the original 
specification to which the cargo tank was designed and constructed.
    (i) Flammable cryogenic liquids. Each cargo tank used to transport a 
flammable cryogenic liquid must be examined after each shipment to 
determine its actual holding time (See Sec. 173.318(g)(3) of this 
subchapter.)
    (j) Withdrawal of certification. A specification cargo tank that for 
any reason no longer meets the applicable specification may not be used 
to transport hazardous materials unless the cargo tank is repaired and 
retested in accordance with Secs. 180.413 and 180.407 prior to being 
returned to hazardous materials service. If the cargo tank is not in 
conformance with the applicable specification requirements, the 
specification plate on the cargo tank must be removed, obliterated or 
securely covered. The details of the conditions necessitating withdrawal 
of the certification must be recorded and signed on the written 
certificate for that cargo tank. The vehicle owner shall retain the 
certificate for at least 1 year after withdrawal of the certification.
    (k) DOT specification cargo tank with no marked design pressure or a 
marked design pressure of less than 3 psig. The owner of an MC 300, MC 
301, MC 302, MC 303, MC 305, MC 306 or MC 312 cargo tank, which has a 
pressure relief system set at 3 psig, may mark or remark the cargo tank 
with an MAWP or design pressure of not greater than 3 psig.
    (l) MC 300, MC 301, MC 302, MC 303, MC 305, MC 306 cargo tank--Rear 
accident damage protection. (1) Notwithstanding the requirements in 
Sec. 180.405(b), the applicable specification requirement for a rear 
bumper or rear-end tank protection device on MC 300, MC 301, MC 302, MC 
303, MC 305, and MC 306 cargo tanks does not apply to a cargo tank truck 
(power unit) until July 1, 1992, if the cargo tank truck--
    (i) Was manufactured before July 1, 1989;
    (ii) Is used to transport gasoline or any other petroleum distillate 
product; and
    (iii) Is operated in combination with a cargo tank full trailer. 
However, an empty cargo tank truck, without a cargo tank full trailer 
attached, may be operated without the required rear bumper or rear-end 
tank protection device on a one-time basis while being transported to a 
repair facility for installation of a rear bumper or rear-end protection 
device.
    (2) Each cargo tank shall be provided with a rear accident damage 
protection device to protect the tank and piping in the event of a rear-
end collision and reduce the likelihood of damage which could result in 
the loss of lading. The rear-end protection device must be in the form 
of a rear-end tank protection device meeting the requirements of 
Sec. 178.345-8(d) or a rear bumper meeting the following:
    (i) The bumper shall be located at least 6 inches to the rear of any 
vehicle

[[Page 992]]

component used for loading or unloading or that may contain lading while 
the vehicle is in transit.
    (ii) The dimensions of the bumper shall conform to Sec. 393.86 of 
this title.
    (iii) The structure of the bumper shall be designed to withstand, 
without leakage of lading, the impact of the vehicle with rated payload, 
at a deceleration of 2 ``g'' using a safety factor of two based on the 
ultimate strength of the bumper material. Such impact shall be 
considered uniformly distributed and applied horizontally (parallel to 
the ground) from any direction at an angle not exceeding 30 degrees to 
the longitudinal axis of the vehicle.
[Amdt. 180-2, 54 FR 25032, June 12, 1989, as amended at 55 FR 21038, May 
22, 1990; 55 FR 37066, Sept. 7, 1990; 56 FR 27877, 27878, June 17, 1991; 
Amdt. 180-3, 57 FR 45466, Oct. 1, 1992; 58 FR 12905, Mar. 8, 1993; Amdt. 
180-4, 58 FR 51534, Oct. 1, 1993; Amdt. 180-2, 59 FR 1786, Jan. 12, 
1994; Amdt. 180-6, 59 FR 49135, Sept. 26, 1994; Amdt. 180-7, 59 FR 
55177, Nov. 3, 1994]



Sec. 180.407  Requirements for test and inspection of specification cargo tanks.

    (a) General. (1) A cargo tank constructed in accordance with a DOT 
specification for which a test or inspection specified in this section 
has become due, may not be filled and offered for transportation or 
transported until the test or inspection has been successfully 
completed. This paragraph does not apply to any cargo tank filled prior 
to the test or inspection due date.
    (2) Except during a pressure test or during loading or unloading, a 
cargo tank may not be subjected to a pressure greater than its design 
pressure or MAWP.
    (3) A person witnessing or performing a test or inspection specified 
in this section must meet the minimum qualifications prescribed in 
Sec. 180.409.
    (4) Each cargo tank must be evaluated in accordance with the 
acceptable results of tests and inspections prescribed in Sec. 180.411.
    (5) Each cargo tank which has successfully passed a test or 
inspection specified in this section must be marked in accordance with 
Sec. 180.415.
    (6) A cargo tank which fails a prescribed test or inspection must:
    (i) Be repaired and retested in accordance with Sec. 180.413; or
    (ii) Be removed from hazardous materials service and the 
specification plate removed, obliterated or covered in a secure manner.
    (b) Conditions requiring test and inspection of cargo tanks. Without 
regard to any other test or inspection requirements, a specification 
cargo tank must be tested and inspected in accordance with this section 
prior to further use if:
    (1) The cargo tank shows evidence of bad dents, corroded or abraded 
areas, leakage, or any other condition that might render it unsafe for 
transportation service.
    (2) The cargo tank has been in an accident and has been damaged to 
an extent that may adversely affect its lading retention capability.
    (3) The cargo tank has been out of hazardous materials 
transportation service for a period of one year or more. Each cargo tank 
that has been out of hazardous materials transportation service for a 
period of one year or more must be pressure tested in accordance with 
Sec. 180.407(g) prior to further use.
    (4) The cargo tank has been modified from its original design 
specification.
    (5) The Department so requires based on the existence of probable 
cause that the cargo tank is in an unsafe operating condition.
    (c) Periodic test and inspection. Each specification cargo tank must 
be tested and inspected as specified in the following table by an 
inspector meeting the qualifications in Sec. 180.409.

------------------------------------------------------------------------
                                         Date by which                  
   Test or inspection (cargo tank     first test must be     Interval   
  specification, configuration, and     completed (see     period after 
              service)                      note 1)         first test  
------------------------------------------------------------------------
External Visual Inspection:                                             
    All cargo tanks designed to be    September 1, 1991.  6 months.     
     loaded by vacuum with full                                         
     opening rear heads.                                                
    All other cargo tanks...........  September 1, 1991.  1 year.       
Internal Visual Inspection:                                             
    All insulated cargo tanks,        September 1, 1991.  1 year.       
     except MC 330, MC 331, MC 338.                                     

[[Page 993]]

                                                                        
    All cargo tanks transporting      September 1, 1991.  1 year.       
     lading corrosive to the tank.                                      
    All other cargo tanks, except MC  September 1, 1995.  5 years.      
     338.                                                               
Lining Inspection:                                                      
    All lined cargo tanks             September 1, 1991.  1 year.       
     transporting lading corrosive                                      
     to the tank.                                                       
Leakage Test:                                                           
    MC 330 and MC 331 cargo tanks in  September 1, 1991.  2 years.      
     chlorine service.                                                  
    All other cargo tanks except MC   September 1, 1991.  1 year.       
     338.                                                               
Pressure Test:                                                          
    (Hydrostatic or pneumatic) (See   ..................  ..............
     Notes 2 and 3).                                                    
    All cargo tanks which are         September 1, 1991.  1 year.       
     insulated with no manhole or                                       
     insulated and lined, except MC                                     
     338.                                                               
    All cargo tanks designed to be    September 1, 1992.  2 years.      
     loaded by vacuum with full                                         
     opening rear heads.                                                
    MC 330 and MC 331 cargo tanks in  September 1, 1992.  2 years.      
     chlorine service.                                                  
    All other cargo tanks...........  September 1, 1995.  5 years.      
Thickness Test:                                                         
    All unlined cargo tanks           September 1, 1992.  2 years.      
     transporting material corrosive                                    
     to the tank, except MC 338.                                        
------------------------------------------------------------------------
Note 1: If a cargo tank is subject to an applicable inspection or test  
  requirement under the regulations in effect on December 30, 1990, and 
  the due date (as specified by a requirement in effect on December 30, 
  1990) for completing the required inspection or test occurs before the
  compliance date listed in Table I, the earlier date applies.          
Note 2: Pressure testing is not required for MC 330 and MC 331 cargo    
  tanks in dedicated sodium metal service.                              
Note 3: Pressure testing is not required for uninsulated lined cargo    
  tanks, with a design pressure or MAWP 15 psig or less, which receive  
  an external visual inspection and lining inspection at least once each
  year.                                                                 

    (d) External visual inspection and testing. (1) Where insulation 
precludes external visual inspection, the cargo tank, other than an MC 
330 or MC 331 cargo tank, must be given a visual internal inspection in 
accordance with Sec. 180.407(e). The tank must be hydrostatically or 
pneumatically tested in accordance with Sec. 180.407(c) and (g) where:
    (i) Visual inspection is precluded by internal lining or coating, or
    (ii) The cargo tank is not equipped with a manhole or inspection 
opening.
    (2) The external visual inspection and testing must include as a 
minimum the following:
    (i) The tank shell and heads must be inspected for corroded or 
abraded areas, dents, distortions, defects in welds and any other 
conditions, including leakage, that might render the tank unsafe for 
transportation service;
    (ii) The piping, valves, and gaskets must be carefully inspected for 
corroded areas, defects in welds, and other conditions, including 
leakage, that might render the tank unsafe for transportation service;
    (iii) All devices for tightening manhole covers must be operative 
and there must be no evidence of leakage at manhole covers or gaskets;
    (iv) All emergency devices and valves including self-closing stop 
valves, excess flow valves and remote closure devices must be free from 
corrosion, distortion, erosion and any external damage that will prevent 
safe operation. Remote closure devices and self-closing stop valves must 
be functioned to demonstrate proper operation;
    (v) Missing bolts, nuts and fusible links or elements must be 
replaced, and loose bolts and nuts must be tightened;
    (vi) All markings on the cargo tank required by parts 172, 178 and 
180 of this subchapter must be legible;
    (vii) [Reserved]
    (viii) All major appurtenances and structural attachments on the 
cargo tank including, but not limited to, suspension system attachments, 
connecting structures, and those elements of the upper coupler (fifth 
wheel) assembly that can be inspected without dismantling the upper 
coupler (fifth wheel) assembly must be inspected for any corrosion or 
damage which might prevent safe operation;
    (ix) For cargo tanks transporting lading corrosive to the tank, 
areas covered by the upper coupler (fifth wheel) assembly must be 
inspected at least

[[Page 994]]

once in each two year period for corroded and abraded areas, dents, 
distortions, defects in welds, and any other condition that might render 
the tank unsafe for transportation service. The upper coupler (fifth 
wheel) assembly must be removed from the cargo tank for this inspection.
    (3) All reclosing pressure relief valves must be externally 
inspected for any corrosion or damage which might prevent safe 
operation. All reclosing pressure relief valves on cargo tanks carrying 
lading corrosive to the valve must be removed from the cargo tank for 
inspection and testing. Each reclosing pressure relief valve required to 
be removed and tested must open at the required set pressure and reseat 
to a leak-tight condition at 90 percent of the set-to-discharge pressure 
or the pressure prescribed for the applicable cargo tank specification.
    (4) Corroded or abraded areas of the cargo tank wall must be 
thickness tested in accordance with the procedures set forth in 
paragraphs (i)(2), (i)(3), (i)(5) and (i)(6) of this section.
    (5) The gaskets on any full opening rear head must be:
    (i) Visually inspected for cracks or splits caused by weather or 
wear; and
    (ii) Replaced if cuts or cracks which are likely to cause leakage, 
or are of a depth one-half inch or more, are found.
    (6) The inspector must record the results of the external visual 
examination as specified in Sec. 180.417(b).
    (e) Internal visual inspection. (1) When the cargo tank is not 
equipped with a manhole or inspection opening, or the cargo tank design 
precludes an internal inspection, the tank shall be hydrostatically or 
pneumatically tested in accordance with 180.407(c) and (g).
    (2) The internal visual inspection must include as a minimum the 
following:
    (i) The tank shell and heads must be inspected for corroded and 
abraded areas, dents, distortions, defects in welds, and any other 
condition that might render the tank unsafe for transportation service.
    (ii) Tank liners must be inspected as specified in Sec. 180.407(f).
    (3) Corroded or abraded areas of the cargo tank wall must be 
thickness tested in accordance with paragraphs (i)(2), (i)(3), (i)(5) 
and (i)(6) of this section.
    (4) The inspector must record the results of the internal visual 
inspection as specified in Sec. 180.417(b).
    (f) Lining inspection. The integrity of the lining on all lined 
cargo tanks, when lining is required by this subchapter, must be 
verified at least once each year as follows:
    (1) Rubber (elastomeric) lining must be tested for holes as follows:
    (i) Equipment must consist of:
    (A) A high frequency spark tester capable of producing sufficient 
voltage to ensure proper calibration;
    (B) A probe with an ``L'' shaped 2.4 mm (0.09 inch) diameter wire 
with up to a 30.5 cm (12-inch) bottom leg (end bent to a 12.7 mm (0.5 
inch) radius), or equally sensitive probe; and
    (C) A steel calibration coupon 30.5 cm  x  30.5 cm (12 inches  x  12 
inches) covered with the same material and thickness as that to be 
tested. The material on the coupon shall have a test hole to the metal 
substrate made by puncturing the material with a 22 gauge hypodermic 
needle or comparable piercing tool.
    (ii) The probe must be passed over the surface of the calibration 
coupon in a constant uninterrupted manner until the hole is found. The 
hole is detected by the white or light blue spark formed. (A sound 
lining causes a dark blue or purple spark.) The voltage must be adjusted 
to the lowest setting that will produce a minimum 12.7 mm (0.5 inch) 
spark measured from the top of the lining to the probe. To assure that 
the setting on the probe has not changed, the spark tester must be 
calibrated periodically using the test calibration coupon, and the same 
power source, probe, and cable length.
    (iii) After calibration, the probe must be passed over the lining in 
an uninterrupted stroke.
    (iv) Holes that are found must be repaired using equipment and 
procedures prescribed by the lining manufacturer or lining installer.
    (2) Linings made of other than rubber (elastomeric material) must be 
tested using equipment and procedures prescribed by the lining 
manufacturer or lining installer.

[[Page 995]]

    (3) Degraded or defective areas of the cargo tank liner must be 
removed and the cargo tank wall below the defect must be inspected. 
Corroded areas of the tank wall must be thickness tested in accordance 
with paragraphs (i)(2), (i)(3), (i)(5) and (i)(6) of this section.
    (4) The inspector must record the results of the lining inspection 
as specified in Sec. 180.417(b).
    (g) Pressure test. All components of the cargo tank wall, as defined 
in Sec. 178.320(a) of this subchapter, must be pressure tested as 
prescribed by this paragraph.
    (1) Test Procedure--(i) As part of the pressure test, the inspector 
must perform an external and internal visual inspection, except that on 
an MC 338 cargo tank, or a cargo tank not equipped with a manhole or 
inspection opening, an internal inspection is not required.
    (ii) All reclosing pressure relief valves must be:
    (A) Removed from the cargo tank for inspection and testing. Each 
reclosing pressure relief valve must open at the required set pressure 
and reseat to a leak-tight condition at 90 percent of the set-to-
discharge pressure or the pressure prescribed for the applicable cargo 
tank specification; or,
    (B) Replaced.
    (iii) Except for cargo tanks carrying lading corrosive to the tank, 
areas covered by the upper coupler (fifth wheel) assembly must be 
inspected for corroded and abraded areas, dents, distortions, defects in 
welds, and any other condition that might render the tank unsafe for 
transportation service. The upper coupler (fifth wheel) assembly must be 
removed from the cargo tank for this inspection.
    (iv) Each cargo tank must be tested hydrostatically or pneumatically 
to the internal pressure specified in the following table:

------------------------------------------------------------------------
             Specification                        Test pressure         
------------------------------------------------------------------------
MC 300, 301, 302, 303, 305, 306........  20.7 kPa (3 psig) or design    
                                          pressure, whichever is        
                                          greater.                      
MC 304, 307............................  275.8 kPa (40 psig) or 1.5     
                                          times the design pressure,    
                                          whichever is greater.         
MC 310, 311, 312.......................  20.7 kPa (3 psig) or 1.5 times 
                                          the design pressure, whichever
                                          is greater.                   
MC 330, 331............................  1.5 times either the MAWP or   
                                          the re-rated pressure,        
                                          whichever is applicable.      
MC 338.................................  1.25 times either the MAWP or  
                                          the re-rated pressure,        
                                          whichever is applicable.      
DOT 406................................  34.5 kPa (5 psig) or 1.5 times 
                                          the MAWP, whichever is        
                                          greater.                      
DOT 407................................  275.8 kPa (40 psig) or 1.5     
                                          times the MAWP, whichever is  
                                          greater.                      
DOT 412................................  1.5 times the MAWP.            
------------------------------------------------------------------------

    (v) Each owner of 5 or more MC 300, MC 301, MC 302, MC 303, MC 304, 
MC 305, MC 306, MC 307, MC 310, MC 311, or MC 312 cargo tanks must 
pressure test at least 20 percent of the cargo tanks in his ownership 
each year beginning in 1991. The owner of fewer than five MC 
specification cargo tanks has until August 31, 1995, to pressure test 
these units.
    (vi) Each cargo tank of a multi-tank cargo tank motor vehicle must 
be tested with the adjacent cargo tanks empty and at atmospheric 
pressure.
    (vii) All closures except pressure relief devices must be in place 
during the test. All prescribed loading and unloading venting devices 
rated at less than test pressure may be removed during the test. If 
retained, the devices must be rendered inoperative by clamps, plugs, or 
other equally effective restraining devices. Restraining devices may not 
prevent detection of leaks or damage the venting devices and must be 
removed immediately after the test is completed.
    (viii) Hydrostatic test method. Each cargo tank, including its 
domes, must be filled with water or other liquid having similar 
viscosity, at a temperature not exceeding 100  deg.F. The cargo tank 
must then be pressurized to not less than the pressure specified in 
paragraph (g)(1)(iv) of this section. The cargo tank, including its 
closures, must hold the prescribed test pressure for at least 10 minutes 
during which time it shall be inspected for leakage, bulging or any 
other defect.
    (ix) Pneumatic test method. Pneumatic testing may involve higher 
risk than

[[Page 996]]

hydrostatic testing. Therefore, suitable safeguards must be provided to 
protect personnel and facilities should failure occur during the test. 
The cargo tank must be pressurized with air or an inert gas. The 
pneumatic test pressure in the cargo tank must be reached by gradually 
increasing the pressure to one-half of the test pressure. Thereafter, 
the pressure must be increased in steps of approximately one-tenth of 
the test pressure until the required test pressure has been reached. The 
test pressure must be held for at least 5 minutes. The pressure must 
then be reduced to the MAWP, which must be maintained during the time 
the entire cargo tank surface is inspected. During the inspection, a 
suitable method must be used for detecting the existence of leaks. This 
method must consist either of coating the entire surface of all joints 
under pressure with a solution of soap and water, or using other equally 
sensitive methods.
    (2) When testing an insulated cargo tank, the insulation and 
jacketing need not be removed unless it is otherwise impossible to reach 
test pressure and maintain a condition of pressure equilibrium after 
test pressure is reached, or the vacuum integrity cannot be maintained 
in the insulation space. If an MC 338 cargo tank used for the 
transportation of a flammable gas or oxygen, refrigerated liquid is 
opened for any reason, the cleanliness must be verified prior to closure 
using the procedures contained in Sec. 178.338-15 of this subchapter.
    (3) Each MC 330 and MC 331 cargo tank constructed of quenched and 
tempered steel (Part UHT of the ASME Code), or constructed of other than 
quenched and tempered steel but without postweld heat treatment, used 
for the transportation of anhydrous ammonia, or any other hazardous 
materials that may cause corrosion stress cracking, must be internally 
inspected by the wet fluorescent magnetic particle method immediately 
prior to and in conjunction with the performance of the pressure test 
prescribed in this section. Each MC 330 and MC 331 cargo tank 
constructed of quenched and tempered steel (Part UHT of the ASME Code) 
used for the transportation of liquefied petroleum gas must be 
internally inspected by the wet fluorescent magnetic particle method 
immediately prior to and in conjunction with the performance of the 
pressure test prescribed in this section. The wet fluorescent magnetic 
particle inspection must be in accordance with Section V of the ASME 
Code and CGA Technical Bulletin TB-2. This paragraph does not apply to 
cargo tanks that do not have manholes. (See Sec. 180.417(c) for 
reporting requirements.)
    (4) All pressure bearing portions of a cargo tank heating system 
employing a medium such as, but not limited to, steam or hot water for 
heating the lading must be hydrostatically pressure tested at least once 
every 5 years. The test pressure must be at least 1.5 times the heating 
system design pressure and must be maintained for five minutes. A 
heating system employing flues for heating the lading must be tested to 
ensure against lading leakage into the flues or into the atmosphere.
    (5) Exceptions. (i) Pressure testing is not required for MC 330 and 
MC 331 cargo tanks in dedicated sodium metal service.
    (ii) Pressure testing is not required for uninsulated lined cargo 
tanks, with a design pressure or MAWP of 15 psig or less, which receive 
an external visual inspection and a lining inspection at least once each 
year.
    (6) Acceptance criteria. A cargo tank that leaks, fails to retain 
test pressure or pneumatic inspection pressure, shows distortion, 
excessive permanent expansion, or other evidence of weakness that might 
render the cargo tank unsafe for transportation service, may not be 
returned to service, except as follows: A cargo tank with a heating 
system which does not hold pressure may remain in service as an unheated 
cargo tank if:
    (i) The heating system remains in place and is structurally sound 
and no lading may leak into the heating system, and
    (ii) The specification plate heating system information is changed 
to indicate that the cargo tank has no working heating system.
    (7) The inspector must record the results of the pressure test as 
specified in Sec. 180.417(b).

[[Page 997]]

    (h) Leakage test. (1) Each cargo tank must be tested for leaks in 
accordance with Sec. 180.407(c). The leakage test must include product 
piping with all valves and accessories in place and operative, except 
that any venting devices set to discharge at less than the leakage test 
pressure must be removed or rendered inoperative during the test. Test 
pressure must be maintained at least 5 minutes. Suitable safeguards must 
be provided to protect personnel should a failure occur. MC 330 and MC 
331 cargo tanks may be leakage tested with the hazardous materials 
contained in the tank during the test. Leakage test pressure must be not 
less than 80 percent of the tank design pressure or MAWP, whichever is 
marked on the certification or specification plate, except as follows:
    (i) A cargo tank with an MAWP of 690 kPa (100 psig) or more may be 
leakage tested at its maximum normal operating pressure provided it is 
in dedicated service or services; or
    (ii) An MC 330 or MC 331 cargo tank in dedicated liquified petroleum 
gas service may be leakage tested at not less than 414 kPa (60 psig).
    (2) Cargo tanks equipped with vapor collection equipment may be 
leakage tested in accordance with the Environmental Protection Agency's 
``Method 27--Determination of Vapor Tightness of Gasoline Delivery Tank 
Using Pressure-Vacuum Test,'' as set forth in 40 CFR Part 60, Appendix 
A. Acceptance criteria are found at 40 CFR 60.501.
    (3) A cargo tank that fails to retain leakage test pressure may not 
be returned to service as a specification cargo tank, except under 
conditions specified in Sec. 180.411(d).
    (4) The inspector must record the results of the leakage test as 
specified in Sec. 180.417(b).
    (i) Thickness testing. (1) The shell and head thickness of all 
unlined cargo tanks used for the transportation of materials corrosive 
to the tank must be measured at least once every 2 years, except that 
cargo tanks measuring less than the sum of the minimum prescribed 
thickness, plus one-fifth of the original corrosion allowance, must be 
tested annually.
    (2) Measurements must be made using a device capable of accurately 
measuring thickness to within +/- 0.002 of an inch.
    (3) Any person performing thickness testing must be trained in the 
proper use of the thickness testing device used in accordance with the 
manufacturer's instruction.
    (4) Thickness testing must be performed in the following areas of 
the cargo tank wall, as a minimum:
    (i) Areas of the tank shell and heads and shell and head area around 
any piping that retains lading;
    (ii) Areas of high shell stress such as the bottom center of the 
tank;
    (iii) Areas near openings;
    (iv) Areas around weld joints;
    (v) Areas around shell reinforcements;
    (vi) Areas around appurtenance attachments;
    (vii) Areas near upper coupler (fifth wheel) assembly attachments;
    (viii) Areas near suspension system attachments and connecting 
structures;
    (ix) Known thin areas in the tank shell and nominal liquid level 
lines; and
    (x) Connecting structures joining multiple cargo tanks of carbon 
steel in a self-supporting cargo tank motor vehicle.
    (5) Minimum thicknesses for MC 300, MC 301, MC 302, MC 303, MC 304, 
MC 305, MC 306, MC 307, MC 310, MC 311, and MC 312 cargo tanks are shown 
in the tables below. The columns headed ``Specified Manufactured 
Thickness'' tabulate the minimum values required for new construction, 
generally found in Tables I and II of each specification. ``In-Service 
Minimum Thicknesses'' are based on 90 percent of the manufactured 
thickness as specified in the DOT specification, rounded to three 
places.

 Table I.--Minimum Thickness for MC 300, MC 303, MC 304, MC 306, MC 307,
MC 310, MC 311 and MC 312 Specification Cargo Tanks Constructed of Steel
                            and Steel Alloys                            
------------------------------------------------------------------------
                                                     Nominal            
                                                     decimal      In-   
  Specified manufactured thickness (US gauge or    equivalent   service 
                     inches)                           for      minimum 
                                                    reference  thickness
                                                    (inches)    (inches)
------------------------------------------------------------------------
19...............................................      0.0418      0.038
18...............................................      0.0478      0.043
17...............................................      0.0538      0.048

[[Page 998]]

                                                                        
16...............................................      0.0598      0.054
15...............................................      0.0673      0.061
14...............................................      0.0747      0.067
13...............................................      0.0897      0.081
12...............................................      0.1046      0.094
11...............................................      0.1196      0.108
10...............................................      0.1345      0.121
9................................................      0.1495      0.135
8................................................      0.1644      0.148
7................................................      0.1793      0.161
3/16.............................................      0.1875      0.169
1/4..............................................      0.2500      0.225
5/16.............................................      0.3125      0.281
3/8..............................................      0.3750      0.338
------------------------------------------------------------------------


Table II.--Minimum Thickness for MC 301, MC 302, MC 304, MC 305, MC 306,
   MC 307, MC 311 and MC 312 Specification Cargo Tanks Constructed of   
                      Aluminum and Aluminum Alloys                      
------------------------------------------------------------------------
                                                                  In-   
                                                                service 
          Specified manufactured thickness (inches)             minimum 
                                                               thickness
                                                                (inches)
------------------------------------------------------------------------
0.078........................................................      0.070
0.087........................................................      0.078
0.096........................................................      0.086
0.109........................................................      0.098
0.130........................................................      0.117
0.141........................................................      0.127
0.151........................................................      0.136
0.172........................................................      0.155
0.173........................................................      0.156
0.194........................................................      0.175
0.216........................................................      0.194
0.237........................................................      0.213
0.270........................................................      0.243
0.360........................................................      0.324
0.450........................................................      0.405
0.540........................................................      0.486
------------------------------------------------------------------------

    (6) An owner of a cargo tank that no longer conforms with the 
minimum thickness prescribed for the maximum lading density marked on 
the specification plate may use the cargo tank to carry lading of lower 
density under the following conditions:
    (i) A Design Certifying Engineer must certify that the cargo tank 
design and thickness is appropriate for the lower density lading, by 
issuance of a new manufacturer's certificate, and
    (ii)The tank's nameplate must be changed to reflect the new service 
limits (maximum density of lading).
    (7) An owner of a cargo tank that no longer conforms with the 
minimum thickness prescribed for the specification may not return the 
cargo tank to hazardous materials service. The tank's specification 
plate must be removed, obliterated or covered in a secure manner.
    (8) The inspector must record the results of the thickness test as 
specified in Sec. 180.417(b).
[Amdt. 180-2, 54 FR 25032, June 12, 1989, as amended at 55 FR 21038, May 
22, 1990; 55 FR 37067, Sept. 7, 1990; 56 FR 27878, June 17, 1991; Amdt 
180-3, 57 FR 45466, Oct. 1, 1992; Amdt. 180-4, 58 FR 51534, Oct. 1, 
1993; Amdt. 180-6, 59 FR 49135, Sept. 26, 1994; Amdt. 180-7, 59 FR 
55177, 55178, Nov. 3, 1994; 60 FR 17402, Apr. 5, 1995; Amdt. 180-9, 61 
FR 27176, May 30, 1996; Amdt. 180-10, 61 FR 51342, Oct. 1, 1996]



Sec. 180.409  Minimum qualifications for inspectors and testers.

    (a) Except as otherwise provided in this section, any person 
performing or witnessing the inspections and tests specified in 
Sec. 180.407(c) must--
    (1) Be registered with the Department in accordance with part 107, 
subpart F of this chapter, and
    (2) Be familiar with DOT specification cargo tanks and must be 
trained and experienced in use of the inspection and testing equipment 
needed.
    (b) A person who only performs annual external visual inspections 
and leakage tests on a cargo tank motor vehicle, owned or operated by 
that person, with a capacity of less than 13,250 liters (3,500 gallons) 
used exclusively for flammable liquid petroleum fuels, is not required 
to meet the educational and years of experience requirements set forth 
in the definition of ``Registered Inspector'' in Sec. 171.8 of this 
subchapter. Although not required to meet the educational and years of 
experience requirements, a person who performs visual inspections or 
leakage tests or signs the inspection reports must have the knowledge 
and ability to perform such inspections and tests and must perform them 
as required by this subchapter, and must register with the Department as 
required by subpart F of part 107 of this chapter.

[[Page 999]]

    (c) A person who performs only annual external visual inspections 
and leakage tests on a permanently mounted non-bulk tank, owned or 
operated by that person, for petroleum products as authorized by 
Sec. 173.8(c) of this subchapter, is not required to be registered in 
accordance with subpart F of part 107 of this chapter. In addition the 
person who signs the inspection report required by Sec. 180.417(b) of 
this subpart for such non-bulk tanks is not required to be registered. 
Although not required to register, a person who performs visual 
inspections or leakage tests or signs the inspection reports must have 
the knowledge and ability to perform such inspections and tests and must 
perform them as required by this subchapter.
    (d) A motor carrier or cargo tank owner who meets the requirements 
of paragraph (a) of this section may use an employee who is not a 
Registered Inspector to perform a portion of the pressure retest 
required by Sec. 180.407(g). External and internal visual inspections 
must be accomplished by a Registered Inspector, but the hydrostatic or 
pneumatic pressure test, as set forth in Sec. 180.407(g)(1)(viii) and 
(ix), respectively, may be done by an employee who is not a Registered 
Inspector provided that--
    (1) The employee is familiar with the cargo tank and is trained and 
experienced in the use of the inspection and testing equipment used;
    (2) The employer submits certification that such employee meets the 
qualification requirements to the Associate Administrator for Hazardous 
Materials Safety, Attn: (DHM-32), Research and Special Programs 
Administration, Department of Transportation, 400 Seventh Street, SW., 
Washington, DC 20590; and
    (3) The employer retains a copy of the tester's qualifications with 
the documents required by Sec. 180.417(b).
[Amdt. 180-2, 55 FR 37069, Sept. 7, 1990, as amended by Amdt. 180-3, 56 
FR 66287, Dec. 20, 1991; 57 FR 45466, Oct. 1, 1992; Amdt. 180-11, 62 FR 
1217, Jan. 8, 1997]



Sec. 180.411  Acceptable results of tests and inspections.

    (a) Corroded or abraded areas. The minimum thickness may not be less 
than that prescribed in the applicable specification.
    (b) Dents, cuts, digs and gouges. (See CGA Pamphlet C-6 for 
evaluation procedures.)
    (1) For dents at welds or that include a weld, the maximum allowable 
depth is \1/2\ inch. For dents away from welds, the maximum allowable 
depth is \1/10\ of the greatest dimension of the dent, but in no case 
may the depth exceed one inch.
    (2) The minimum thickness remaining beneath a cut, dig, or gouge may 
not be less than that prescribed in the applicable specification.
    (c) Weld or structural defects. Any cargo tank with a weld defect 
such as a crack, pinhole, or incomplete fusion, or a structural defect 
must be taken out of hazardous materials service until repaired.
    (d) Leakage. All sources of leakage must be properly repaired prior 
to returning a tank to hazardous materials service.
    (e) Relief valves. Any pressure relief valve that fails to open and 
reclose at the prescribed pressure must be repaired or replaced.
    (f) Liner integrity. Any defect shown by the test must be properly 
repaired.
    (g) Pressure test. Any tank that fails to meet the acceptance 
criteria found in the individual specification that applies must be 
properly repaired.



Sec. 180.413  Repair, modification, stretching, or rebarrelling of cargo tanks.

    (a) General. For purposes of this section, ``stretching'' is not 
considered a ``modification'' and ``rebarrelling'' is not considered a 
``repair.'' Any repair, modification, stretching, or rebarrelling of a 
cargo tank must be performed in conformance with the requirements of 
this section.
    (b) Repair--(1) Non-ASME Code stamped cargo tanks. Any work 
involving repair on an MC 300, MC 301, MC 302, MC 303, MC 304, MC 305, 
MC 306, MC 307, MC 310, MC 311, or MC 312 cargo tank that is not ASME 
Code stamped must be performed by:
    (i) A cargo tank manufacturer holding a valid ASME Certificate of 
Authorization for the use of the ASME ``U'' stamp and registered with 
DOT; or

[[Page 1000]]

    (ii) A repair facility holding a valid National Board Certificate of 
Authorization for the use of the National Board ``R'' stamp and 
registered with DOT.
    (2) ASME Code stamped cargo tanks. Any work involving repair on any 
ASME Code stamped cargo tank must be performed by a repair facility 
holding a valid National Board Certificate of Authorization for the use 
of the National Board ``R'' stamp and registered in accordance with 
subpart F of part 107 of subchapter B of this chapter.
    (3) The following provisions apply to cargo tank repairs:
    (i) DOT 406, DOT 407, and DOT 412 cargo tanks must be repaired in 
accordance with the specification requirements in effect either at the 
time of manufacture or at the time of repair;
    (ii) MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 cargo tanks 
must be repaired in accordance with either the original specification or 
with the DOT 406 specification in effect at the time of repair;
    (iii) MC 304 and MC 307 cargo tanks must be repaired in accordance 
with either the original specification or with the DOT 407 specification 
in effect at the time of repair;
    (iv) MC 310, MC 311, and MC 312 cargo tanks must be repaired in 
accordance with either the original specification or with the DOT 412 
specification in effect at the time of the repair;
    (v) MC 338 cargo tanks must be repaired in accordance with the 
specification requirements in effect either at the time of manufacture 
or at the time of repair; and
    (vi) MC 330 and MC 331 cargo tanks must be repaired in accordance 
with the repair procedures described in CGA Technical Bulletin TB-2 and 
the National Board Inspection Code--Provisions for Repair of Pressure 
Vessels. Each cargo tank having cracks or other defects requiring welded 
repairs must meet all of the requirements of Sec. 178.337-16 of this 
subchapter (in effect at the time of the repair), except that postweld 
heat treatment after minor weld repairs is not required. When any repair 
is made of defects revealed by the wet fluorescent magnetic particle 
inspection, including those by grinding, the affected area of the cargo 
tank must again be examined by the wet fluorescent magnetic particle 
method after hydrostatic testing to assure that all defects have been 
removed.
    (4) Prior to any repair work, the cargo tank must be emptied of any 
hazardous material lading. Cargo tanks containing flammable or toxic 
lading must be purged.
    (5) Any repair of a cargo tank involving welding on the shell or 
head must be certified by a Registered Inspector. Any repair of an ASME 
Code ``U'' stamped cargo tank must be in accordance with the National 
Board Inspection Code.
    (6) The suitability of any repair affecting the structural integrity 
of the cargo tank must be determined by the testing required either in 
the applicable manufacturing specification, or in 
Sec. 180.407(g)(1)(iv).
    (c) Maintenance or replacement of piping, valves, hoses or fittings. 
In the event of repair, maintenance or replacement, any piping, valve, 
or fitting must be properly installed in accordance with the provisions 
of the applicable specification before the cargo tank is returned to 
hazardous materials service. After maintenance or replacement which does 
not involve welding on the cargo tank wall, the repaired piping, valves 
or fittings, the replaced segment of the piping must be leak tested. 
After repair or replacement of piping, valves or fittings which involves 
welding on the cargo tank wall, the entire cargo tank, including the 
repaired or replaced piping, valve or fitting, must be pressure tested 
in accordance with the applicable specification. Hoses permanently 
attached to the cargo tank must be tested either before or after 
installation.
    (d) Modification, stretching, or rebarrelling. Modification, 
stretching or rebarrelling of a cargo tank must conform to the following 
provisions:
    (1) Non-ASME Code stamped cargo tanks. If the modification, 
stretching, or rebarrelling will result in a design type change, then it 
must be approved by a Design Certifying Engineer. Any work involving 
modification, stretching, or rebarrelling on an MC 300, MC 301, MC 302, 
MC 303, MC 304, MC 305, MC 306, MC 307, MC 310, MC 311, or MC 312

[[Page 1001]]

cargo tank that is not ASME stamped must be performed by:
    (i) A cargo tank manufacturer holding a valid ASME Certificate of 
Authorization for the use of the ASME ``U'' stamp and registered with 
DOT; or
    (ii) A repair facility holding a valid National Board Certificate of 
Authorization for the use of the National Board ``R'' stamp and 
registered with DOT.
    (2) ASME Code stamped cargo tanks. The modification, stretching, or 
rebarrelling on any ASME Code stamped cargo tank must be performed by a 
repair facility holding a valid National Board Certificate of 
Authorization for the use of the National Board ``R'' stamp and 
registered in accordance with subpart F of part 107 of subchapter B of 
this chapter. If the modification, stretching, or rebarrelling will 
result in a design type change, then it must be approved by a Design 
Certifying Engineer.
    (3) Except as provided in paragraph (d)(3)(v) in this section, all 
new material and equipment, and equipment affected by modification, 
stretching or rebarrelling must meet the requirements of the 
specification in effect at the time such work is performed, and must 
meet the applicable structural integrity requirements (Secs. 178.337-3, 
178.338-3, or 178.345-3 of this subchapter). The work must conform to 
the requirements of the applicable specification as follows:
    (i) For specification MC 300, MC 301, MC 302, MC 303, MC 305 and MC 
306 cargo tanks, the provisions of either specification MC 306 or DOT 
406 until August 31, 1995 and, thereafter to specification DOT 406 only;
    (ii) For specification MC 304 and MC 307 cargo tanks, the provisions 
of either specification MC 307 or DOT 407 until August 31, 1995 and, 
thereafter to specification DOT 407 only;
    (iii) For specification MC 310, MC 311, and MC 312 cargo tanks, the 
provisions of either specification MC 312 or DOT 412 until August 31, 
1995 and, thereafter to specification DOT 412 only;
    (iv) For specification MC 330 cargo tanks, the provisions of 
specification MC 331; and
    (v) For Specification MC 338 cargo tanks, the provisions of 
specification MC 338. However, structural modifications to MC 338 cargo 
tanks authorized under Sec. 180.405(d) may conform to applicable 
provisions of the ASME Code instead of specification MC 338, provided 
the structural integrity of the modified cargo tank is at least 
equivalent to that of the original cargo tank.
    (4) The person performing the modification, stretching, or 
rebarrelling must:
    (i) Have knowledge of the original design concept, particularly with 
respect to structural design analysis, material and welding procedures;
    (ii) Assure compliance with the rebuilt cargo tank's structural 
integrity, venting, and accident damage protection requirements;
    (iii) Assure compliance with all applicable Federal Motor Carrier 
Safety Regulations for any newly installed safety equipment;
    (iv) Perform all retest procedures on each cargo tank in accordance 
with the applicable specification and Sec. 180.407;
    (v) Change the existing specification plate to reflect the cargo 
tank as modified, stretched or rebarrelled. This must include the name 
of the person doing the work, his DOT registration number, date, retest 
information, etc. A supplemental specification plate may be installed 
immediately adjacent to the existing plate(s), or the existing 
specification plate may be removed and replaced with a new plate; and
    (vi) On a variable specification cargo tank, install a supplemental 
or new variable specification plate, and replace the specification 
listed on the original specification plate with the words ``see variable 
specification plate''.
    (5) The design of the modified, stretched, or rebarrelled cargo tank 
must be approved by a Design Certifying Engineer registered in 
accordance with subpart F of part 107 of subchapter B of this chapter. 
The Design Certifying Engineer must certify that the modified, 
stretched, or rebarrelled cargo tank meets the structural integrity 
requirements of the applicable specification. The person performing the 
modifying, stretching or rebarrelling and a Registered Inspector must

[[Page 1002]]

certify that the cargo tank is in compliance with this section and the 
applicable specification by issuing a supplemental manufacturer's 
certificate. The registration number of the Registered Inspector and the 
person performing the modification, stretching, or rebarrelling must be 
entered on the certificate. When a cargo tank is rebarrelled, it must be 
designed, constructed and certified in accordance with a cargo tank 
specification currently authorized for construction in Part 178 of this 
subchapter.
    (6) If the mounting of the cargo tank on the cargo tank motor 
vehicle involves welding on the cargo tank head or shell, then the 
mounting must be performed as follows:
    (i) Non-ASME Code stamped cargo tanks. For a non-ASME Code stamped 
cargo tank--
    (A) By a cargo tank manufacturer holding an ASME ``U'' stamp, 
registered with DOT, and under the direction of a Design Certifying 
Engineer; or
    (B) By a repair facility holding an ASME ``U'' stamp or a National 
Board ``R'' stamp, registered with DOT, and under the direction of a 
Design Certifying Engineer.
    (ii) ASME Code stamped cargo tank. For an ASME Code stamped cargo 
tank, by a repair facility holding a National Board ``R'' stamp, 
registered in accordance with subpart F of part 107 of subchapter B of 
this chapter, and approved by a Design Certifying Engineer.
    (7) If the mounting of a cargo tank on a cargo tank motor vehicle 
does not involve welding on the cargo tank head or shell, or a change or 
modification of the methods of attachment, then the mounting shall be in 
accordance with the original specification or with the specification in 
effect at the time of the mounting. If the mounting involves any change 
or modification of the methods of attachment, then the mounting must be 
approved by a Design Certifying Engineer.
    (8) Prior to any modification, stretching, or rebarrelling a cargo 
tank must be emptied of any hazardous material lading. Cargo tanks 
containing flammable or toxic lading must be purged.
    (9) Any modification, stretching, or rebarrelling on the cargo tank 
involving welding on the shell or head must be certified by a Registered 
Inspector. Any repair of an ASME Code ``U'' stamped cargo tank must be 
in accordance with the National Board Inspection Code.
    (10) The suitability of any modification affecting the structural 
integrity of the cargo tank, with respect to pressure, must be 
determined by the testing required either in the applicable 
manufacturing specification, or in Sec. 180.407(g)(1)(iv).
    (e) Records. Each owner of a cargo tank must retain at its principal 
place of business all records of repair, modification, stretching, or 
rebarrelling made to each cargo tank during the time the cargo tank is 
in service and for one year thereafter. Copies of these records must be 
retained by a motor carrier, who is not the owner of the cargo tank, at 
its principal place of business during the period the cargo tank is in 
the carrier's service. The seller of a specification cargo tank shall 
provide the purchaser a copy of the cargo tank Certificate of 
Compliance, and all repair, inspection and test reports upon sale as an 
MC or DOT cargo tank.
[Amdt. 180-7, 59 FR 55178, Nov. 3, 1994; 60 FR 17402, Apr. 5, 1995, as 
amended by Amdt. 180-10, 61 FR 51342, Oct. 1, 1996]



Sec. 180.415  Test and inspection markings.

    (a) Each cargo tank successfully completing the test and inspection 
requirements contained in Sec. 180.407 must be marked as specified in 
this section.
    (b) Each cargo tank must be durably and legibly marked, in English, 
with the date (month and year) and the type of test or inspection 
performed. The date must be readily identifiable with the applicable 
test or inspection. The marking must be in letters and numbers at least 
32 mm (1.25 inches) high, on the tank shell near the specification plate 
or anywhere on the front head. The type of test or inspection may be 
abbreviated as follows: V for external visual inspection and test; I for 
internal visual inspection; P for pressure test; L for lining 
inspection, K for leakage test; and T for thickness test. For

[[Page 1003]]

example, the markings ``10-95 P, V, L'' would indicate that in October 
1995 the cargo received and passed the prescribed pressure test, 
external visual inspection and test, and the lining inspection.
    (c) For a cargo tank motor vehicle composed of multiple cargo tanks 
constructed to the same specification, which are tested and inspected at 
the same time, one set of test and inspection markings may be used to 
satisfy the requirements of this section. For a cargo tank motor vehicle 
composed of multiple cargo tanks constructed to different 
specifications, which are tested and inspected at different intervals, 
the test and inspection markings must appear in the order of the cargo 
tank's corresponding location, from front to rear.
[Amdt. 180-2, 56 FR 27879, June 17, 1991, as amended by Amdt. 180-3, 56 
FR 66287, Dec. 20, 1991; 57 FR 45466, Oct. 1, 1992; Amdt. 180-6, 59 FR 
49135, Sept. 26, 1994; Amdt. 180-10, 61 FR 51343, Oct. 1, 1996]



Sec. 180.417  Reporting and record retention requirements.

    (a) Vehicle certification. (1) Each owner of a specification cargo 
tank shall retain the manufacturer's data report or certificate and 
related papers certifying that the specification cargo tank identified 
in the documents was manufactured and tested in accordance with the 
applicable specification. The owner shall retain the documents 
throughout his ownership of the specification cargo tank and for one 
year thereafter. In the event of change of ownership, the prior owner 
shall retain non-fading photo copies of these documents for at least one 
year.
    (2) Each motor carrier who uses a specification cargo tank motor 
vehicle must obtain a copy of the manufacturer's certificate and related 
papers or the alternative report authorized in paragraph (a)(3) (i) or 
(ii) of this section and retain the documents as specified in this 
paragraph. A motor carrier who is not the owner of a cargo tank motor 
vehicle must retain a copy of the vehicle certification report at its 
principal place of business for as long as the cargo tank motor vehicle 
is used by that carrier and for one year thereafter. Upon a written 
request to, and with the approval of the Regional Director, Office of 
Motor Carrier Safety, Federal Highway Administration, for the region in 
which a motor carrier has its principal place of business, a motor 
carrier may retain the certificate and related papers required by this 
paragraph at a regional or terminal office. The addresses and 
jurisdictions of the various regional Motor Carrier Safety Offices are 
provided in Sec. 390.40 of this title. The provisions of this section do 
not apply to a motor carrier leasing a cargo tank for less than 30 days.
    (3) DOT Specification cargo tanks manufactured before September 1, 
1995--(i) Non-ASME Code stamped cargo tanks-- If an owner does not have 
a manufacturer's certificate for a cargo tank and he wishes to certify 
it as a specification cargo tank, the owner must perform appropriate 
tests and inspections, under the direct supervision of a Registered 
Inspector, to determine if the cargo tank conforms with the applicable 
specification. Both the owner and the Registered Inspector must certify 
that the cargo tank fully conforms to the applicable specification. The 
owner must retain the certificate, as specified in this section.
    (ii) ASME Code stamped cargo tanks. If the owner does not have the 
manufacturer's certificate and data report required by the 
specification, the owner may contact the National Board for a copy of 
the manufacturer's data report, if the cargo tank was registered with 
the National Board, or copy the information contained on the cargo 
tank's identification and ASME Code plates. Additionally, both the owner 
and the Registered Inspector must certify that the cargo tank fully 
conforms to the specification. The owner must retain such documents, as 
specified in this section.
    (b) Test or inspection reporting. Each cargo tank which is tested or 
reinspected as specified in Sec. 180.407 must have a written report, in 
English, prepared in accordance with this paragraph.
    (1) The test or inspection report must include the following:
    (i) Type of test or inspection performed and a listing of all items 
either tested or inspected (a checklist is acceptable);

[[Page 1004]]

    (ii) Owner's and manufacturer's serial numbers;
    (iii) DOT Specification;
    (iv) Test Date (Month and year);
    (v) Location of defects found and method used to repair each defect;
    (vi) Name and address of person performing the test, the DOT 
registration number of the facility or the person performing the test;
    (vii) Disposition statement, such as ``Cargo tank returned to 
service'' or ``Cargo tank withdrawn from service''; and
    (viii) DOT registration number of the inspector, and dated signature 
of inspector and owner.
    (2) The owner and the motor carrier, if not the owner, must each 
retain a copy of the test and inspection reports until the next test or 
inspection of the same type is successfully completed. This requirement 
does not apply to a motor carrier leasing a cargo tank for less than 30 
days.
    (c) Additional requirements for Specification MC 330 and MC 331 
cargo tanks. (1) After completion of the pressure test specified in 
Sec. 180.407(g)(3), each motor carrier operating a Specification MC 330 
or MC 331 cargo tank in anhydrous ammonia, liquefied petroleum gas, or 
any other service that may cause stress corrosion cracking, must make a 
written report containing the following information:
    (i) Carrier's name, address of principal place of business, and 
telephone number;
    (ii) Complete identification plate data required by Specification MC 
330 or MC 331, including data required by ASME Code;
    (iii) Carrier's equipment number;
    (iv) A statement indicating whether or not the tank was stress 
relieved after fabrication;
    (v) Name and address of the person performing the test and the date 
of the test;
    (vi) A statement of the nature and severity of any defects found. In 
particular, information must be furnished to indicate the location of 
defects detected, such as in weld, heat-affected zone, the liquid phase, 
the vapor phase, or the head-to-shell seam. If no defect or damage was 
discovered, that fact must be reported;
    (vii) A statement indicating the methods employed to make repairs, 
who made the repairs, and the date they were completed. Also, a 
statement of whether or not the tank was stress relieved after repairs 
and, if so, whether full or local stress relieving was performed;
    (viii) A statement of the disposition of the cargo tank, such as 
``cargo tank scrapped'' or ``cargo tank returned to service''; and
    (ix) A statement of whether or not the cargo tank is used in 
anhydrous ammonia, liquefied petroleum gas, or any other service that 
may cause stress corrosion cracking. Also, if the cargo tank has been 
used in anhydrous ammonia service since the last report, a statement 
indicating whether each shipment of ammonia was certified by its shipper 
as containing 0.2 percent water by weight.
    (2) A copy of the report must be retained by the carrier at its 
principal place of business during the period the cargo tank is in the 
carrier's service and for one year thereafter. Upon a written request 
to, and with the approval of, the Director, Regional Office of Motor 
Carrier Safety, Federal Highway Administration for the region in which a 
motor carrier has its principal place of business, the carrier may 
maintain the reports at a regional or terminal office.
    (3) The requirement in paragraph (c)(1) of this section does not 
apply to a motor carrier leasing a cargo tank for less than 30 days.
    (d) Supplying reports. Each carrier offering a DOT Specification 
cargo tank for sale or lease must make available for inspection a copy 
of the most recent report made under this section to each purchaser or 
lessee. Copies of such reports must be provided to the purchaser, or the 
lessee if the cargo tank is leased for more than 30 days.
[Amdt. 180-2, 54 FR 25032, June 12, 1989, as amended at 55 FR 21038, May 
22, 1990; 55 FR 37069, Sept. 7, 1990; 56 FR 27879, June 17, 1991; 58 FR 
12905, Mar. 8, 1993; Amdt. 180-2, 59 FR 1786, Jan. 12, 1994; Amdt. 180-
10, 61 FR 51343, Oct. 1, 1996]

[[Page 1005]]



          Subpart F--Qualification and Maintenance of Tank Cars

    Source:  Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, unless otherwise 
noted.



Sec. 180.501  Applicability.

    (a) This subpart prescribes requirements, in addition to those 
contained in parts 107, 171, 172, 173, and 179 of this subchapter, 
applicable to any person who manufactures, fabricates, marks, maintains, 
repairs, inspects, or services tank cars to ensure continuing 
qualification.
    (b) Any person who performs a function prescribed in this part shall 
perform that function in accordance with this part.
[Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33256, June 26, 1996]



Sec. 180.503  Definitions.

    The definitions contained in Secs. 171.8 and 179.2 of this 
subchapter apply.



Sec. 180.505  Quality assurance program.

    The quality assurance program requirements of Sec. 179.7 of this 
subchapter apply.



Sec. 180.507  Qualification of tank cars.

    (a) Each tank car marked as meeting a ``DOT'' specification or any 
other tank car used for the transportation of a hazardous material must 
meet the requirements of this subchapter or the applicable specification 
to which the tank was constructed.
    (b) Tank car specifications no longer authorized for construction. 
(1) Tank cars prescribed in the following table are authorized for 
service provided they conform to all applicable safety requirements of 
this subchapter:

------------------------------------------------------------------------
    Specification prescribed in the       Other specifications          
          current regulations                   permitted          Notes
------------------------------------------------------------------------
105A200W..............................  105A100W................       1
105A200ALW............................  105A100ALW..............       1
105A300W..............................  ICC-105, 105A300........        
105A400W..............................  105A400.................        
105A500W..............................  105A500.................        
105A600W..............................  105A600.................        
106A500X..............................  ICC-27, BE-27, 106A500..        
106A800X..............................  106A800.................        
107A * * * *..........................  ........................       2
------------------------------------------------------------------------
Note 1: Tanks built as Specification DOT 105A100W or DOT 105A100ALW may 
  be altered and converted to DOT 105A200W and DOT 105A200ALW,          
  respectively.                                                         
Note 2: The test pressures of tanks built in the United States between  
  January 1, 1941 and December 31, 1955, may be increased to conform to 
  Specification 107A. Original and revised test pressure markings must  
  be indicated and may be shown on the tank or on a plate attached to   
  the bulkhead of the car. Tanks built before 1941 are not authorized.  

    (2) For each tank car conforming to and used under an exemption 
issued before October 1, 1984, which authorized the transportation of a 
cryogenic liquid in a tank car, the owner or operator shall remove the 
exemption number stenciled on the tank car and stamp the tank car with 
the appropriate Class DOT-113 specification followed by the applicable 
exemption number. For example: DOT-113D60W-E * * * * (asterisks to be 
replaced by the exemption number). The owner or operator marking a tank 
car in this manner shall retain on file a copy of the last exemption in 
effect during the period the tank car is in service. No person may 
modify a tank car marked under this paragraph unless the modification is 
in compliance with an applicable requirement or provision of this 
subchapter.
    (3) Specification DOT-113A175W, DOT-113C60W, DOT-113D60W, and DOT-
113D120W tank cars may continue in use, but new construction is not 
authorized.
    (4) Class DOT 105A and 105S tank cars used to transport hydrogen 
chloride, refrigerated liquid under the terms of DOT-E 3992 may continue 
in service, but new construction is not authorized.



Sec. 180.509  Requirements for inspection and test of specification tank cars.

    (a) General. (1) Each tank car facility shall evaluate a tank car 
according to the requirements specified in Sec. 180.511.
    (2) Each tank car that successfully passes a periodic inspection and 
test must be marked as prescribed in Sec. 180.515.
    (3) A written report as specified in Sec. 180.517(b) must be 
prepared for each tank car that is inspected and tested under this 
section.
    (b) Conditions requiring inspection and test of tank cars. Without 
regard to any other periodic inspection and test requirements, a tank 
car must have an

[[Page 1006]]

appropriate inspection and test according to the type of defect and the 
type of maintenance or repair performed if:
    (1) The tank car shows evidence of abrasion, corrosion, cracks, 
dents, distortions, defects in welds, or any other condition that makes 
the tank car unsafe for transportation. An example is if maintenance is 
performed to replace a fitting, then only a leakage pressure test needs 
to be performed.
    (2) The tank car was in an accident and damaged to an extent that 
may adversely affect its capability to retain its contents.
    (3) The tank bears evidence of damage caused by fire.
    (4) The Associate Administrator for Safety, FRA, requires it based 
on the existence of probable cause that a tank car or a class or design 
of tank cars may be in an unsafe operating condition.
    (c) Frequency of inspection and tests. Each tank car shall have an 
inspection and test according to the requirements of this paragraph.
    (1) For Class 107 tank cars and tank cars of riveted construction, 
the tank car must have a hydrostatic pressure test and visual inspection 
conforming to the requirements in effect prior to July 1, 1996, for the 
tank specification.
    (2) For Class DOT 113 tank cars, see Sec. 173.319(e) of this 
subchapter.
    (3) For fusion welded tank cars, each tank car must have an 
inspection and test in accordance with paragraphs (d) through (k) of 
this section.
    (i) For cars transporting materials not corrosive to the tank, every 
10 years for the tank and service equipment (i.e., filling and 
discharge, venting, safety, heating, and measuring devices).
    (ii) For non-lined or non-coated tank cars transporting materials 
corrosive to the tank, an interval based on the following formula, but 
in no case shall the interval exceed 10 years for the tank and 5 years 
for service equipment:
[GRAPHIC] [TIFF OMITTED] TC13NO91.039


    (iii) For lined or coated tank cars transporting a material 
corrosive to the tank, every 10 years for the tank, 5 years for the 
service equipment.
    (A) When a lining or coating is applied to protect the tank shell 
from the lading, the owner of the lining or coating shall determine the 
periodic inspection interval, test technique, and acceptance criteria 
for the lining or coating. The owner must maintain at its principal 
place of business all supporting documentation used to make such a 
determination, such as the lining or coating manufacturer's recommended 
inspection interval, test technique, and acceptance criteria. The 
supporting documentation must be made available to FRA upon request.
    (B) The owner of the lining or coating shall provide the periodic 
inspection interval, test technique, and acceptance criteria for the 
lining or coating to the person responsible for qualifying the lining 
and coating.
    (d) Visual inspection. At a minimum, each tank car facility must 
visually inspect the tank externally and internally as follows:
    (1) An internal inspection of the tank shell and heads for abrasion, 
corrosion, cracks, dents, distortions, defects in welds, or any other 
condition that makes the tank car unsafe for transportation, and except 
in the areas where insulation or a thermal protection system precludes 
it, an external inspection of the tank shell and heads for abrasion, 
corrosion, cracks, dents, distortions, defects in welds, or any other 
condition that makes the tank car unsafe for transportation;
    (2) An inspection of the piping, valves, fittings, and gaskets for 
indications of corrosion and other conditions that make the tank car 
unsafe for transportation;
    (3) An inspection for missing or loose bolts, nuts, or elements that 
make the tank car unsafe for transportation;
    (4) An inspection of all closures on the tank car for proper 
securement in a tool tight condition and an inspection of the protective 
housings for proper securement;
    (5) An inspection of excess flow valves having threaded seats for 
tightness; and
    (6) An inspection of the required markings on the tank car for 
legibility.
    (e) Structural integrity inspections and tests. At a minimum, each 
tank car facility shall inspect the tank car for

[[Page 1007]]

structural integrity as specified in this section. The structural 
integrity inspection and test shall include all transverse fillet welds 
greater than 0.64 cm (0.25 inch) within 121.92 cm (4 feet) of the bottom 
longitudinal center line; the termination of longitudinal fillet welds 
greater than 0.64 cm (0.25 inch) within 121.92 cm (4 feet) of the bottom 
longitudinal center line; and all tank shell butt welds within 60.96 cm 
(2 feet) of the bottom longitudinal center line by one or more of the 
following inspection and test methods to determine that the welds are in 
proper condition:
    (1) Dye penetrant test;
    (2) Radiography test;
    (3) Magnetic particle test;
    (4) Ultrasonic test; or
    (5) Optically-aided visual inspection (e.g., magnifiers, 
fiberscopes, borescopes, and machine vision technology).
    (f) Thickness tests. (1) Each tank car facility shall measure the 
thickness of the tank car shell, heads, sumps, domes, and nozzles on 
each tank car by using a device capable of accurately measuring the 
thickness to within 0.05 mm (0.002 inch).
    (2) After repairs, alterations, conversions or modifications of a 
tank car that result in a reduction to the tank car shell thickness, the 
tank car facility shall measure the thickness of the tank car shell in 
the area of reduced shell thickness to ensure that the shell thickness 
conforms to paragraph (g) of this section.
    (g) Service life shell thickness allowance. (1) A tank car found 
with a shell thickness below the required minimum thickness after 
forming for its specification, as stated in part 179 of this subchapter, 
may continue in service if:
    (i) Construction of the tank car shell and heads is from carbon 
steel, stainless steel, aluminum, nickel, or manganese-molybdenum steel; 
and
    (ii) Any reduction in the required minimum thickness of the tank 
shell or head is not more than that provided in the following table:

                                                          Allowable Shell Thickness Reductions                                                          
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                         Class DOT 103, 104, 111, and 115 tank cars                Class DOT 105, 109, 112, and 114 tank cars           
                                     -------------------------------------------------------------------------------------------------------------------
             Damage type                                                                  Top shell and tank                                            
                                      Top shell and tank head        Bottom shell                head                         Bottom shell              
--------------------------------------------------------------------------------------------------------------------------------------------------------
Corrosion...........................  3.17 mm (0.125 inch)...  1.58 mm (0.063 inch)...  0.79 mm (0.031 inch)..  0.79 mm (0.031 inch).                   
Corrosion and mechanical............  3.17 mm (0.125 inch)...  1.58 mm (0.063 inch)...  0.79 mm (0.031 inch)..  0.79 mm (0.031 inch).                   
Corrosion, local....................  4.76 mm (0.188 inch)...  3.17 mm (0.125 inch)...  1.58 mm (0.063 inch)..  1.58 mm (0.063 inch).                   
Mechanical, local...................  3.17 mm (0.125 inch)...  1.58 mm (0.063 inch)...  1.58 mm (0.063 inch)..  1.58 mm (0.063 inch).                   
Corrosion and mechanical, local.....  4.76 mm (0.188 inch)...  3.17 mm (0.125 inch)...  1.58 mm (0.063 inch)..  1.58 mm (0.063 inch).                   
--------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:                                                                                                                                                  
1. The perimeter for a local reduction may not exceed a 60.96 cm (24 inch) perimeter. Local reductions in the top shell must be separated from other    
  reductions in the top shell by at least 40.64 cm (16 inches). The cumulative perimeter for local reductions in the bottom shell may not exceed 182.88 
  cm (72 inches).                                                                                                                                       
2. Any reduction in the tank car shell may not affect the structural strength of the tank car so that the tank car shell no longer conforms to Section  
  6.2 of the AAR Specifications for Tank Cars.                                                                                                          
3. Any reduction applies only to the outer shell for Class DOT 115 tank cars.                                                                           
4. For Class DOT 103 and 104 tank cars, the inside diameter may not exceed 243.84 cm (96 inches).                                                       

    (h) Safety system inspections. At a minimum, each tank car facility 
must inspect:
    (1) Tank car thermal protection systems, tank head puncture 
resistance systems, coupler vertical restraint systems, and systems used 
to protect discontinuities (i.e., skid protection and protective 
housings) to ensure their integrity.
    (2) Reclosing pressure relief devices by:
    (i) Removing the safety relief device from the tank car for 
inspection; and
    (ii) Testing the safety relief device with air or another gas to 
ensure that it conforms to the start-to-discharge pressure for the 
specification or hazardous material in this subchapter.

[[Page 1008]]

    (i) Lining and coating inspection and test. When this subchapter 
requires a lining or coating, at a minimum, each tank car facility must 
inspect the lining or coating installed on the tank car according to the 
inspection interval test technique, and acceptance criteria established 
by the owner of the lining or coating in accordance with paragraph 
(c)(3)(iii) of this section.
    (j) Leakage pressure test. (1) After reassembly of a tank car or 
service equipment, a tank car facility must perform a leak test on the 
tank or service equipment to detect leakage, if any, between manway 
covers, cover plates, and service equipment. The test may be conducted 
with the hazardous material in the tank. When the test pressure exceeds 
the start-to-discharge or burst pressure of a pressure relief device, 
the device must be rendered inoperative. The written procedures and test 
method for leak testing must ensure for the sensitivity and reliability 
of the test method and for the serviceability of components to prevent 
premature failure.
    (2) Interior heater systems must be tested hydrostatically at 13.87 
Bar (200 psi) and must show no signs of leakage.
    (k) Alternative inspection and test procedures. In lieu of the other 
requirements of this section, a person may use an alternative inspection 
and test procedure or interval based on a damage-tolerance fatigue 
evaluation (that includes a determination of the probable locations and 
modes of damage due to fatigue, corrosion, or accidental damage), when 
the evaluation is examined by the Association of American Railroads Tank 
Car Committee and approved by the Associate Administrator for Safety, 
FRA.
    (l) Inspection and test compliance date for tank cars. After July 1, 
2000, each tank car with a metal jacket or with a thermal protection 
system shall have an inspection and test conforming to this section no 
later than the date the tank car requires a periodic hydrostatic 
pressure test (i.e., the marked due date on the tank car for the 
hydrostatic test).
    (2) After July 1, 1998, each tank car without a metal jacket shall 
have an inspection and test conforming to this section no later than the 
date the tank car requires a periodic hydrostatic pressure test (i.e., 
the marked due date on the tank car for the hydrostatic test).
    (3) For tank cars on a 20-year periodic hydrostatic pressure test 
interval (i.e., Class DOT 103W, 104W, 111A60W1, 111A100W1, and 111A100W3 
tank cars), the next inspection and test date is the midpoint between 
the compliance date in paragraph (l)(1) or (2) of this section and the 
remaining years until the tank would have had a hydrostatic pressure 
test.
[Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33256, June 26, 1996; 62 FR 51561, Oct. 1, 1997]



Sec. 180.511  Acceptable results of inspections and tests.

    Provided it conforms with other applicable requirements of this 
subchapter, a tank car is qualified for use if it successfully passes 
the following inspections and tests conducted in accordance with this 
subpart:
    (a) Visual inspection. A tank car successfully passes the visual 
inspection when the inspection shows no structural defect that may cause 
leakage from or failure of the tank before the next inspection and test 
interval.
    (b) Structural integrity inspection and test. A tank car 
successfully passes the structural integrity inspection and test when it 
shows no structural defect that may initiate cracks or propagate cracks 
and cause failure of the tank before the next inspection and test 
interval.
    (c) Service life shell thickness. A tank car successfully passes the 
service life shell thickness inspection when the tank shell and heads 
show no thickness reduction below that allowed in Sec. 180.509(g).
    (d) Safety system inspection. A tank car successfully passes the 
safety system inspection when each thermal protection system, tank head 
puncture resistance system, coupler vertical restraint system, and 
system used to protect discontinuities (e.g., breakage grooves on bottom 
outlets and protective housings) on the tank car conform to this 
subchapter.
    (e) Lining and coating inspection. A tank car successfully passes 
the lining and coating inspection and test when

[[Page 1009]]

the lining or conforms to the owner's acceptance criteria.
    (f) Leakage pressure test. A tank car successfully passes the 
leakage pressure test when all product piping, fittings and closures 
show no indication of leakage.
    (g) Hydrostatic test. A Class 107 tank car or a riveted tank car 
successfully passes the hydrostatic test when it shows no leakage, 
distortion, excessive permanent expansion, or other evidence of weakness 
that might render the tank car unsafe for transportation service.
[Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33256, June 26, 1996]



Sec. 180.513  Repairs, alterations, conversions, and modifications.

    (a) In order to repair tank cars, the tank car facility must comply 
with the requirements of Appendix R of the AAR Specifications for Tank 
Cars.
    (b) Unless the exterior tank car shell or interior tank car jacket 
has a protective coating, after a repair that requires the complete 
removal of the tank car jacket, the exterior tank car shell and the 
interior tank car jacket must have a protective coating applied to 
prevent the deterioration of the tank shell and tank jacket.



Sec. 180.515  Markings.

    (a) When a tank car passes the required inspection and test with 
acceptable results, the tank car facility shall mark the date of the 
inspection and test and the due date of the next inspection and test on 
the tank car in accordance with Appendix C of the AAR Specifications for 
Tank Cars. When a tank car facility performs multiple inspection and 
test at the same time, one date may be used to satisfy the requirements 
of this section. One date also may be shown when multiple inspection and 
test have the same due date.
    (b) Converted tank cars must have the new specification and 
conversion date permanently marked in letters and figures at least 0.95 
cm (0.375 inch) high on the outside of the manway nozzle or the edge of 
the manway nozzle flange on the left side of the car. The marking may 
have the last numeral of the specification number omitted (e.g., ``DOT 
111A100W'' instead of ``DOT 111A100W1'').
    (c) When pressure tested within six months of installation and 
protected from deterioration, the test date marking of a safety relief 
device is the installation date on the tank car.
[Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33256, June 26, 1996]



Sec. 180.517  Reporting and record retention requirements.

    (a) Certification and representation. Each owner of a specification 
tank car shall retain the certificate of construction (AAR Form 4-2) and 
related papers certifying that the manufacture of the specification tank 
car identified in the documents is in accordance with the applicable 
specification. The owner shall retain the documents throughout the 
period of ownership of the specification tank car and for one year 
thereafter. Upon a change of ownership, the requirements of Section 
1.3.15 of the AAR Specifications for Tank Cars apply.
    (b) Inspection and test reporting. Each tank car that is inspected 
as specified in Sec. 180.509 must have a written report, in English, 
prepared according to this paragraph. The owner must retain a copy of 
the inspection and test reports until successfully completing the next 
inspection and test of the same type. The inspection and test report 
must include the following:
    (1) Type of inspection and test performed (a checklist is 
acceptable);
    (2) The results of each inspection and test performed;
    (3) Owner's reporting mark;
    (4) DOT Specification;
    (5) Inspection and test date (month and year);
    (6) Location and description of defects found and method used to 
repair each defect;
    (7) The name and address of the tank car facility and the signature 
of inspector.



Sec. 180.519  Periodic retest and inspection of tank cars other than single-unit tank car tanks.

    (a) General. Unless otherwise provided in this subpart, tanks 
designed to

[[Page 1010]]

be removed from cars for filling and emptying and tanks built to a Class 
DOT 107A specification and their safety relief devices must be retested 
periodically as specified in Retest Table 1 of paragraph (b)(5) of this 
section. Retests may be made at any time during the calendar year the 
retest falls due.
    (b) Pressure test. (1) Each tank, except as provided in paragraph 
(b)(8) of this section, must be subjected to the specified hydrostatic 
pressure and its permanent expansion determined. Pressure must be 
maintained for 30 seconds and far as long as necessary to secure 
complete expansion of the tank. Before testing, the pressure gauge must 
be shown to be accurate within 1 percent at test measure. The expansion 
gauge must be shown to be accurate, at test pressure, to within 1 
percent. Expansion must be recorded in cubic centimeters. Permanent 
volumetric expansion may not exceed 10 percent of total volumetric 
expansion at test pressure and the tank must not leak or show evidence 
of distress.
    (2) Each tank, except tanks built to specification DOT 107A, must 
also be subjected to interior air pressure test of at least 100 psi 
under conditions favorable to detection of any leakage. No leaks may 
appear.
    (3) Safety relief valves must be retested by air or gas, must start 
to discharge at or below the prescribed pressure and must be vapor tight 
at or above the prescribed pressure.
    (4) Frangible discs and fusible plugs must be removed from the tank 
and visually inspected.
    (5) Tanks must be retested as specified in Retest Table 1 of this 
paragraph (b)(5), and before returning to service after repairs 
involving welding or heat treatment:

                                                 Retest Table 1                                                 
----------------------------------------------------------------------------------------------------------------
                                     Retest interval--years        Minimum Retest          Safety relief valve  
                                   --------------------------     pressure--p.s.i.          pressure--p.s.i.    
                                                             ---------------------------------------------------
           Specification                            Safety        Tank                                          
                                        Tank        relief    hydrostatic    Tank air    Start-to-              
                                                  devices d     expansion      test      discharge   Vapor tight
                                                                   c                                            
----------------------------------------------------------------------------------------------------------------
DOT 27............................            5            2          500          100          375          300
106A500...........................            5            2          500          100          375          300
106A500X..........................            5            2          500          100          375          300
106A800...........................            5            2          800          100          600          480
106A800X..........................            5            2          800          100          600          480
106A800NCI........................            5            2          800          100          600          480
107A * * * *......................           d5           a2          (b)         None         None         None
110A500-W.........................            5            2          500          100          375          300
110A600-W.........................            5            2          600          100          500          360
110A800-W.........................            5            2          800          100          600          480
110A1000-W........................            5            2        1,000          100          750          600
BE-27.............................            5            2          500          100          375          300
----------------------------------------------------------------------------------------------------------------
Notes:                                                                                                          
a If DOT 107A * * * * tanks are used for transportation of flammable gases, one frangible disc from each car    
  must be burst at the interval prescribed. The sample disc must burst at a pressure not exceeding the marked   
  test pressure of the tank and not less than 70 percent of the marked test pressure. If the sample disc does   
  not burst within the prescribed limits, all discs on the car must be replaced.                                
b The hydrostatic expansion test pressure must at least equal the marked test pressure.                         
c See Sec.  180.519(b)(1).                                                                                      
d Safety relief valves of the spring-loaded type on tanks used exclusively for fluorinated hydrocarbons and     
  mixtures thereof which are free from corroding components may be retested every 5 years.                      

    (6) The month and year of test, followed by a ``V'' if visually 
inspected as described in paragraph (c) of this section, must be plainly 
and permanently stamped into the metal of one head or chime of each tank 
with successful test results; for example, 01-90 for January 1990. On 
DOT 107A**** tanks, the date must be stamped into the metal of the 
marked end, except that if all tanks mounted on a car have been tested, 
the date may be stamped into the metal of a plate permanently applied to 
the bulkhead on the ``A'' end of the car. Dates of previous tests and 
all prescribed markings must be kept legible.
    (c) Visual inspection. Tanks of Class DOT 106A and DOT 110A-W 
specifications (Secs. 179.300, 179.301, 179.302 of this subchapter) used 
exclusively for transporting fluorinated hydrocarbons and mixtures 
thereof, and that are free

[[Page 1011]]

from corroding components, may be given a periodic complete internal and 
external visual inspection in place of the periodic hydrostatic retest. 
Visual inspections shall be made only by competent persons. The tank 
must be accepted or rejected in accordance with the criteria in CGA 
Pamphlet C-6.
    (d) Written records. The results of the pressure test and visual 
inspection must be recorded on a suitable data sheet. Completed copies 
of these reports must be retained by the owner and by the person 
performing the pressure test and visual inspection as long as the tank 
is in service. The information to be recorded and checked on these data 
sheets are: Date of test and inspection; DOT specification number; tank 
identification (registered symbol and serial number, date of manufacture 
and ownership symbol); type of protective coating (painted, etc., and 
statement as to need for refinishing or recoating); conditions checked 
(leakage, corrosion, gouges, dents or digs, broken or damaged chime or 
protective ring, fire, fire damage, internal condition); test pressure; 
results of tests; and disposition of tank (returned to service, returned 
to manufacturer for repair, or scrapped); and identification of the 
person conducting the retest or inspection.
[Amdt. 180-8, 60 FR 49079, Sept. 21, 1995, as amended by Amdt. 179-50, 
61 FR 33257, June 26, 1996]
[[Page 1013]]


                              FINDING AIDS






  --------------------------------------------------------------------

  A list of CFR titles, subtitles, chapters, subchapters and parts and 
an alphabetical list of agencies publishing in the CFR are included in 
the CFR Index and Finding Aids volume to the Code of Federal Regulations 
which is published separately and revised annually.
  Material Approved for Incorporation by Reference
  Table of CFR Titles and Chapters
  Alphabetical List of Agencies Appearing in the CFR
  List of CFR Sections Affected

[[Page 1015]]

            Material Approved for Incorporation by Reference

                     (Revised as of October 1, 1997)

  The Director of the Federal Register has approved under 5 U.S.C. 
552(a) and 1 CFR Part 51 the incorporation by reference of the following 
publications. This list contains only those incorporations by reference 
effective as of the revision date of this volume. Incorporations by 
reference found within a regulation are effective upon the effective 
date of that regulation. For more information on incorporation by 
reference, see the preliminary pages of this volume.


49 CFR (PARTS 100-185)

RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
TRANSPORTATION (HAZARDOUS MATERIALS REGULATIONS)
                                                                  49 CFR


Aluminum Association

  420 Lexington Ave., New York, NY 10017
Aluminum Standards and Data, Seventh Edition, June      171.7; 172.102; 
  1982.                                                   178.46; 178.65


American National Standards Institute

  1430 Broadway, New York, NY 10018
ANSI B9.1-89, Safety Code for Mechanical                         173.306
  Refrigeration.
ANSI B16.5-77 Steel Pipe Flanges, Flanged Fittings      178.345; 178.360
ANSI N14.1-90 Packaging of Uranium Hexafluoride         173.417; 173.420
  for Transport.
ANSI N14.1-87 Packaging of Uranium Hexafluoride         173.417; 173.420
  for Transport.
ANSI N14.1-82 Packaging of Uranium Hexafluoride         173.417; 173.420
  for Transport.
ANSI N14.1-71, Packaging of Uranium Hexafluoride        173.417; 173.420
  for Transport.
ANSI/ASHRAE 15-1994, Safety Code for Mechanical           171.7; 173.306
  Refrigeration.


American Pyrotechnics Association

  P.O. Box 213, Chestertown, MD 21620
APA Standard 87-1 Standards for Construction and                  173.56
  Approval for Transportation of Fireworks and 
  Novelties, April 1993 ed.


American Society of Mechanical Engineers

  Service Center, 22 Law Drive, P.O. Box 2900, 
  Fairfield, NJ 07007, Telephone (610) 832-9585, 
  FAX (610) 832-9555

  ASME Code:
  Sections II (Parts A and B), V, VIII and IX of       173.32; 173.306; 
  1986 Ed. of American Society of Mechanical          173.315; 173.318; 
  Engineers Boiler and Pressure Code and Addenda        173.420; 177.814
  through June 30, 1985.
  Section II (Parts A and B) (1992 and Addenda          171.1; 178.245; 
  through December 31, 1993).                         178.255; 178.270; 
                                                      178.271; 178.272; 
                                                      178.337; 178.338; 
                                                      178.345; 178.346; 
                                                      178.347; 178.348; 
                                                      179.400; 180.407; 
                                                                 180.417

[[Page 1016]]

  Section V (FR Nondestructive Examination) (1992       171.1; 178.245; 
  and Addenda through December 31, 1993).             178.255; 178.270; 
                                                      178.271; 178.272; 
                                                      178.337; 178.338; 
                                                      178.345; 178.346; 
                                                      178.347; 178.348; 
                                                      179.400; 180.407; 
                                                                 180.417
  Section VIII, Division 1 Pressure Vessels (1992       171.1; 178.245; 
  with Interpretations, Volume 30, 1992 and           178.255; 178.270; 
  Addenda through December 31, 1993).                 178.271; 178.272; 
                                                      178.337; 178.338; 
                                                      178.345; 178.346; 
                                                      178.347; 178.348; 
                                                      179.400; 180.407; 
                                                                 180.417
  ASME Code, Section V (FR Nondestructive                         173.33
  examination, 1977).


American Society for Testing and Materials

  100 Barr Harbor Drive, West Conshohocken, PA, 
  19428-2959, Telephone (610) 832-9585, FAX (610) 
  832-9555
  Noncurrent ASTM standards are available from: 
  Engineering Societies Library, 354 E. 47th St., 
  New York, NY 10017.
ASTM A 20/A 20M-93a Standard Specification for        171.7; 178.337-2; 
  General Requirements for Steel Plates for        179.102-4; 179.102-17
  Pressure Vessels.
ASTM A 47-68 Malleable Iron Castings..............               179.200
ASTM A 53-69a Welded Seamless Steel Pipe..........              179.12-2
ASTM A 178-70 Electric Resistance Welded Carbon                   179.12
  Steel Boiler Tubes.
ASTM A 192-69 Seamless Carbon Steel Boiler Tubes                  179.12
  for High Pressure Service.
ASTM A 240-82 Standard Specification for Heat-                     171.7
  Resisting Chromium and Chromium-Nickel Stainless 
  Steel Plate, Sheet and Strip for Fusion-Welded 
  Unfired Pressure Vessels, Revision A.
ASTM A 240/A 240M-94b Standard Specification for         171.7; 178.57; 
  Heat-Resisting Chromium and Chromium-Nickel      178.358-5; 179.100-7; 
  Stainless Steel Plate, Sheet and Strip for        179.100-10; 179.102-
  Pressure Vessels.                                       1; 179.102-4; 
                                                    179.102-17; 179.200-
                                                          7; 179.201-5; 
                                                    179.220-7; 179.400-5
ASTM A 242-81 High-Strength Low Alloy Structural                 179.100
  Steel.
ASTM A 262-93a Standard Practices for Detecting       171.7; 179.100-7; 
  Susceptibility to Intergranular Attack in         179.200-7; 179.201-4
  Austenitic Stainless Steels.
ASTM A 269-69 Seamless and Welded Austenitic                    179.12-2
  Stainless Steel Tubing for General Service.
ASTM A 285-78 Pressure Vessel Plates, Carbon          179.100; 179.200; 
  Steel, Low- and Intermediate-Tensile Strength.        179.220; 179.300

[[Page 1017]]

ASTM A 300-58 Steel Plates for Pressure Vessels                  178.337
  for Service at Low Temperatures.
ASTM A 302/A 302M-93 Standard Specification for       171.7; 179.100-7; 
  Pressure Vessel Plates, Alloy Steel, Manganese-   179.200-7; 179.220-7
  Molybdenum and Manganese-Molybdenum Nickel.
ASTM A 312-70a Seamless and Welded Austenitic                     179.12
  Stainless Steel Pipe.
ASTM A 333-67 Seamless and Welded Steel Pipe for                  178.45
  Low-Temperature Service.
ASTM A 366/A 366M-91 (1993)e1 Standard                           178.601
  Specification for Steel: Sheet, Carbon, Cold-
  Rolled, Commercial Quality.
ASTM A 370-94 Standard Test Methods and               171.7; 179.102-1; 
  Definitions for Mechanical Testing of Steel      179.102-4; 179.102-17
  Products.
ASTM A 388-67 Ultrasonic Testing and Inspection of                178.45
  Heavy Steel Forging.
ASTM A 441-81 High-Strength Low-Alloy Structural                 178.338
  Manganese Vanadium Steel.
ASTM A 514-81 High-Yield-Strength, Quenched and                  178.338
  Tempered Alloy Steel Plate, Suitable for 
  Welding.
ASTM A 515-69 Carbon Steel Plates for Pressure        179.100; 179.200; 
  Vessels for Intermediate and Higher Temperature       179.220; 179.300
  Service.
ASTM A 516/A 516M-90 Standard Specification for       171.7; 178.337-2; 
  Pressure Vessel Plates, Carbon Steel, for        179.100-7; 179.102-1; 
  Moderate and Lower-Temperature Service.          179.102-2; 179.102-4; 
                                                    179.102-17; 179.200-
                                                         7; 179.200-20; 
                                                               179.220-7
ASTM A 537/A 537M-91 Standard for Pressure Vessel     171.7; 179.100-7; 
  Plates, Heat-Treated, Carbon-Manganese-Silicon   179.102-4; 179.102-17
  Steel.
ASTM A 568/A 568M-95 Standard Specification for                  178.601
  Steel: Sheet, Carbon, and High-Strength, Low-
  Alloy, Hot-Rolled and Cold-Rolled, General 
  Requirements.
ASTM A 572-82 High-Strength Low Alloy Columbium-        178.338; 179.100
  Vanadium Steels of Structural Quality.
ASTM A 588-81 High-Strength Low-Alloy Structural        178.338; 179.100
  Steel with 50 ksi Minimum Yield Point to 4 in. 
  Thick.
ASTM A 606-75 Steel Sheet and Strip, Hot-Rolled                  178.338
  and Cold-Rolled, High Strength, Low Alloy, with 
  Improved Atmospheric Corrosion Resistance 
  (reapproved 1981).
ASTM A 612-72a High-Strength Steel Plates for                    178.337
  Pressure Vessels for Moderate and Lower 
  Temperature Service.
ASTM A 633-79a Normalized High-Strength Low Alloy                178.338
  Structural Steel.
ASTM A 715-81 Steel Sheet and Strip, Hot-Rolled,                 179.200
  High-Strength, Low-Alloy, with Improved 
  Formability.
ASTM B 90-69 Magnesium Alloy Sheet and Plate......               178.251
ASTM B 161-70 Nickel Seamless Pipe and Tube, 1970.                179.12

[[Page 1018]]

ASTM B 162-93a Standard Specification for Nickel        171.7; 179.200-7
  Plate, Sheet, and Strip.
ASTM B 209-93 Standard Specification for Aluminum     171.7; 179.100-7; 
  and Aluminum-Alloy Sheet and Plate.               179.200-7; 179.220-7
ASTM B 210-70 Aluminum Alloy Drawn Stainless                      179.12
  Tables (FR B210-68 (78)).
ASTM B 221-76 Aluminum Alloy Extruded Bars, Rods,                 179.12
  Shapes, and Tubes.
ASTM B 241-76 Aluminum-Alloy Seamless Pipe and                  179.12-2
  Seamless Extruded Tube.
ASTM B 557-84 Tension Testing Wrought and Cast           171.7; 178.46; 
  Aluminum and Magnesium-Alloy Products.                         178.251
ASTM B 580-79 Standard Specification for Anodie         173.316; 173.318
  Oxide Coatings on Aluminium.
ASTM D 56-93 Flash Point by Tag Closed Tester.....               173.120
ASTM D 93-90 Flash Point by Pensky Martens Closed                173.120
  Tester.
ASTM D 93-94 Standard Test Methods for Flash-Point        171.7; 173.120
  by Pensky-Martens Closed-Cup Tester.
ASTM D 445-88 Kinematic Viscosity of Transparent                   171.8
  and Opaque Liquids (and the Calculation of 
  Dynamic Voscosity).
ASTM D 1200-88 Viscosity by Ford Viscosity Cup....                 171.8
ASTM D 1238-90b Standard Test Method for Flow             171.7; 173.225
  Rates of Thermoplastics for Extrusion 
  Plastometer.
ASTM D 1838-64 Copper Strip Corrosion by Liquefied               173.315
  Petroleum (LP) Gases.
ASTM D 3278-89 Flash Point of Liquids by Setaflash               173.120
  Closed Tester.
ASTM D 3278-95 Standard Test Methods for Flash            171.7; 173.120
  Point of Liquids by Setaflash Closed-Cup 
  Apparatus.
ASTM 3828-93 Standard Test Methods for Flash Point               173.120
  by Small Scale Closed Tester.
ASTM D 4206-96 Standard Test Method for Sustained                173.120
  Burning of Liquid Measures Using the Small Scale 
  Open-Cup Apparatus.
ASTM D 4359-90 Standard Test Method for                     130.5; 171.8
  Determining Whether a Material is a Liquid or a 
  Solid.
ASTM E 8-89b Tension Testing of Metallic Materials      178.36; 178.37; 
                                                        178.38; 178.39; 
                                                        178.44; 178.45; 
                                                        178.50; 178.51; 
                                                        178.53; 178.55; 
                                                        178.56; 178.57; 
                                                        178.58; 178.59; 
                                                        178.60; 178.61; 
                                                         178.68; 178.251
ASTM E 23-60 Notched Bar Impact Testing of               178.57; 179.400
  Metallic Materials.
ASTM E 112-88 Standard Test Methods for                    171.7; 178.44
  Determining Average Grain Size.
ASTM E 290-92 Standard Test Method for Semi-Guided         171.7; 178.46
  Bend Test for Ductility of Metallic Materials.
ASTM E 681-85 Standard Test Method for                           173.115
Concentration Limits of Flammability of 
[[Page 1019]]

ASTM G 23-69 Standard Recommended Practice for          172.407; 172.519
  Operating Light-and-Water Exposure Apparatus 
  (Carbon-Arc Type) for Exposure of Nonmetallic 
  Materials.
ASTM G 26-70 Standard Recommended Practice for          172.407; 172.519
  Operating Light-and-Water-Exposure Apparatus 
  (Xenon-Arc-Type) for Exposure of Nonmetallic 
  Materials.
ASTM G 31-72 (Reapproved 1990) Standard Practice          171.7; 173.137
  for Laboratory Immersion Corrosion Testing of 
  Metals.
ASTM G 31-72 (Reapproved 1995) Standard Practice          171.7; 173.137
  for Laboratory Immersion Corrosion Testing of 
  Metals.


American Water Works Association (AWWA)

  1010 Vermont Avenue, NW., Suite 810, Washington, 
  DC 20005
AWWA Standard C207-55, Steel Pipe Flanges; 1955...               178.360


American Welding Society (AWS)

  550 N.W. Le Jeune Road, Miami, FL 33126
AWS Code B 3.0; Standard Qualification Procedure;                178.356
  1972 (FRB 3.0-41 rev. May 73).
AWS Code D1.0; Code for Welding in Building                      178.356
  Construction, (FR D1.0-66).


Association of American Railroads (AAR)

  American Railroads Building, 50 F St., NW., 
  Washington, DC 20001
AAR Manual of Standards and Recommended Practices, 171.7; 174.55; 174.63
  Section I, Specially Equipped Freight Car and 
  Intermodal Equipment, 1988.
AAR Manual of Standards and Recommended Practices,       171.7; 173.31; 
  Section C--Part III, Specification for Tank      174.63; 179.6; 179.7; 
  Cars, Specification M-1002, September 1992.           179.12; 179.16; 
                                                        179.20; 179.22; 
                                                      179.100; 179.101; 
                                                      179.102; 179.103; 
                                                      179.105; 179.200; 
                                                      179.201; 179.220; 
                                                      179.300; 179.400; 
                                                      180.509; 180.513; 
                                                        180.517; 180.575
AAR Specification for Design, Fabrication and                 179.100-23
  Construction of Freight Cars; Volume 1, 1988.


Chlorine Institute, Inc.

  2001 L Street, NW., Suite 506, Washington, DC 
  20036
Type 1-1/2 JQ 225, Dwg. H51970, Revision D, April                173.315
  5, 1989; or Type 1-1/2 JQ 225, Dwg. H50155, 
  Revision F, April 4, 1989.
Standard Chlorine Angle Valve Assembly, Dwg. 104-              178.337-9
  6, December 1, 1982.
Excess Flow Valve with Removable Seat, Dwg. 101-6,            178.337-11
  September 1, 1973.
Excess Flow Valve with Removable Baskets, 106-5,              178.337-11
  September 1, 1973.
Standards for Housing and Manway Covers for Steel             178.337-10
  Cargo Tanks, Dwg. 137-3, September 1, 1982.


Centers for Disease Control and Prevention/National Institutes of Health

  Superintendent of Documents, U.S. Government 
  Printing Office, Washington, DC 20402, Telephone 
  202-512-1800

[[Page 1020]]

Biosafety in Microbiological and Biomedical                      173.134
  Laboratories, Third Edition, May 1993.


Compressed Gas Association, Inc. (CGA)

  1725 Jefferson Davis Highway, Suite 1004, 
  Arlington, VA 22202
CGA Pamphlet C-3 Standards for Welding and Brazing       171.7; 178.47; 
  on Thinned Walled Containers.                         178.50; 178.51; 
                                                        178.53; 178.54; 
                                                        178.56; 178.57; 
                                                        178.58; 178.59; 
                                                        178.60; 178.61; 
                                                          178.65; 178.68
CGA Pamphlet C-5 Cylinder Service Life-Seamless           171.7; 173.302
  Steel High Pressure Cylinders, 1991.
CGA Pamphlet C-6 Standards for Visual Inspection         171.7; 173.34; 
  of Compressed Gas Cylinders, 1993.                             180.519
Pamphlet CGA C-6.1 Standards for Visual Inspection         171.7; 173.34
  of High Pressure Aluminum Compressed Gas 
  Cylinders, 1995.
CGA Pamphlet C-6.2 Guidelines for Visual                   171.7; 173.34
  Inspection and Requalification of Fiber 
  Reinforced High Pressure Cylinders, 1988.
CGA Pamphlet C-6.3 Guidelines for Visual                   171.7; 173.34
  Inspection and Requalification of Low Pressure 
  Aluminum Compressed Gas Cylinders, 1991.
CGA Pamphlet C-7 A Guide for the Preparation of                 172.400a
  Precautionary Markings for Compressed Gas 
  Containers, Appendix A, issued 1992 (6th 
  Edition).
CGA Pamphlet C-8 Standard for Requalification of                  173.34
  DOT-3HT Cylinder Design, 1985.
CGA Pamphlet C-11 Recommended Practices for                171.7; 178.35
  Inspection of Compressed Gas Cylinders at Time 
  of Manufacture, 1993.
CGA Pamphlet C-12 Qualification Procedure for            171.7; 173.34; 
  Acetylene Cylinder Design, 1979.                     173.303; 178.59; 
                                                                  178.60
CGA Pamphlet C-13, Guidelines for Periodic Visual        171.7; 173.34; 
  Inspection and Requalification of Acetylene                    173.303
  Cylinders, 1992.
CGA Pamphlet C-14 Procedures for Fire Testing of                  173.34
  DOT Cylinder Pressure Relief Device Systems, 
  1979.
CGA Pamphlet G-2.2 Guideline Method for                          173.315
  Determining Minimum of 0.2% Water in Anhydrous 
  Ammonia, 1985.
CGA Pamphlet G-4.1 Cleaning Equipment for Oxygen                 178.338
  Service, 1985.
CGA Pamphlet S-1.1 Pressure Relief Device                  171.7; 173.34
  Standards Part 1--Cylinders for Compressed 
  Gases, 1994.
CGA Pamphlet S-1.2 Safety Relief Device Standards       173.315; 173.318
  Part 2--Cargo and Portable Tanks for Compressed 
  Gases, 1980.
CGA Technical Bulletin TB-2 Guidelines for                       180.413
  Inspection and Repair of MC-330 and MC-331 Cargo 
  Tanks, 1980.


Department of Defense

  2461 Eisenhower Ave., Alexandria, VA 22331
TB 700-2 Explosives Hazard Classification                         173.56
  Procedures, December 1989.


Department of Energy (USDOE)

  Office of Scientific and Technical Information, 
  P.O. Box 62, Oak Ridge, TN 37831

[[Page 1021]]

USDOE, CAPE--1622, Revision 1, and Supp. 1,             178.356; 178.358
  Civilian Application Program Engineering 
  Drawings.
USDOE, Material and Equipment Specification No.         178.356; 178.358
  SP--9 Rev. 1, and Supp., Fire Resistant Phenolic 
  Foam.
USDOE, ORO-651--Uranium Hexafluoride Handling           178.356; 178.358
  Procedures and Container Criteria, Revision 3, 
  1972.
USDOE, ORO-651--Uranium Hexafluoride: A Manual of         171.7; 173.417
  Good Handling Practices, Rev. 6, 1991 ed.
USDOE KSS-471, November 30, 1986--Proposal for                   178.358
  Modifications to U.S. Department of 
  Transportation Specification 21PF-1 Fire and 
  Shock Resistant Phenolic Foam--Insulated Metal 
  Overpack.


Fertilizer Institute

  501 Second St., NE., Washington, DC 20002
Definitions and Test Procedures for Ammonium                     174.510
  Nitrate Fertilizer, August 1984.


General Services Administration

  Specification Office, Rm. 6662, 7th and D St., 
  SW., Washington, DC 20407
Federal Specification RR-C-901C, Cylinders,           172.302; 173.304; 
  Compressed Gas: High Pressure, Steet DOT 3AA,                  173.336
  and Aluminum Applications, January 15, 1981.


Institute of Electrical and Electronic Engineers (IEEE)

  IEEE Service Center, 445 Hoes Lane, Piscataway, 
  NJ 08854
IEEE Std. 45-1983, Recommended Practice for            111.05-7; 111.15-
  Electric Installations on Shipboard, 1983.            2(b); 111.30-1; 
                                                    111,30-5(a); 111.30-
                                                    19(a); 111.33-3(a); 
                                                    111.33-5(a); 111.40-
                                                        1; 111.60-1(a); 
                                                    111.60-2; 111.60-3; 
                                                    111.60-5(a); 111.60-
                                                    6(a); 111.60-11(c); 
                                                   111.60-13(a); 111.60-
                                                      19(b); 111.60-21; 
                                                   111.75-5(b); 111.105-
                                                      3; 111.105-31(e); 
                                                    111.105-41; 111.107-
                                                          1(c); 113.65-5


Institute of Makers of Explosives (IME)

  1120 19th Street, NW., Suite 310, Washington, DC 
  20036
IME Safety Library Publication No. 22 (IME                       177.835
  Standard 22), Recommendation for the Safe 
  Transportation of Detonators in a Vehicle with 
  Certain Other Explosive Materials, May 1993.


International Atomic Energy Agency (IAEA)

  Wagramerstrasse 5, P.O. Box 100, A-1400, Vienna, 
  Austria
IAEA, Regulations for the Safe Transport of            171.12; 173.416; 
  Radioactive Materials, Safety Series No. 6, 1985    173.417; 173.473; 
  (as amended 1990).                                             173.476

[[Page 1022]]

International Civil Aviation Organization (ICAO)

  P.O. Box 400, Place de l'Aviation 
  Internationale, 1000 Sherbrooke Street West, 
  Montreal, Quebec, Canada H3A 2R2
Technical Instructions for the Safe Transport of         171.7; 171.11; 
  Dangerous Goods by Air, 1995-1996 Edition.                     172.401
ICAO Technical Instructions for the Safe Transport       171.11; 172.401
  of Dangerous Goods by Air, 1997-1998 Edition.
  ICAO Technical Instructions also available from 
  INTEREG, P.O. Box 60105, Chicago, IL 60660


International Maritime Organization

  4 Albert Embankment, London, SE17SR, England
  IMO Sales, New York Nautical Instrument and 
  Service Corp., 140 W. Broadway, New York, NY 
  10013
IMO International Maritime Dangerous Goods (IMDG)      171.12; 172.401; 
  Code, 1990 Consolidated Edition as amended by        172.407; 173.21; 
  Amendment 27 (1994) (English edition).           176.2; 176.5; 176.11; 
                                                          176.27; 176.30
IMO International Maritime Dangerous Goods (IMDG)      171.12; 172.401; 
  Code, 1994 Consolidated Edition, as amended by        172.407; 176.2; 
  Amendment 28 (1996) (English edition).                 176.5; 176.11; 
                                                          176.27; 176.30


International Organization for Standardization (ISO)

  Case Postale 56, CH-1211, Geneve 20, Switzerland
  Also available from ANSI, 1430 Broadway, New 
  York, NY 10018.
ISO TR 4826-1979(E), Sealed Radioactive Sources--                173.469
  Leak Test Methods.
ISO 82-1974(E) Steel Tensile Testing..............             178.270-3
ISO 535-1991(E) Paper and Board--Determination of         171.7; 178.516
  Water Absorptiveness--Cobb Method.
ISO 780-1985 Packaging-Pictorial marking for                     172.312
  handling of goods.
ISO 1496-3: 1995(E), Series 1 Freight Containers--               173.411
  Specification and Testing--Part 3, Tank 
  Containers for Liquids, Gases and Pressurized 
  Dry Bulk.
ISO 2431-84(E) Standard Cup Method................               173.121
ISO 2592-1973(E) Petroleum products--Determination        171.7; 173.120
  of flash and fire points--Cleveland open cup 
  method.
ISO 2919-1980(E), Sealed Radioactive Sources--                   173.469
  Classification.
ISO 3036-1975(E), Board-Determination of Puncture         171.7; 178.708
  Resistance.
ISO 3574-1986(E) Cold-reduced carbon steel sheet          171.7; 178.503
  of commercial and drawing qualities.
ISO 9328-1-1991(E) Steel plates and strips for            171.7; 173.137
  pressure purposes--Technical delivery 
  conditions--Part 1; General requirements.


National Board of Boiler and Pressure Vessel Inspectors

  1055 Crupper Avenue, Columbus, OH 43229
National Board Inspection Code, A Manual for              171.1; 180.413
  Boiler and Pressure Inspectors, NB-23, 1992 
  Edition.


National Fire Protection Association

  1 Batterymarch Park, Quincy, MA 02269-9101, FAX 
  (617) 770-3500
NFPA Pamphlet No. 58--Standard for the Storage and               173.315
Handling of Liquefied Petroleum Gases, 1979.
[[Page 1023]]

National Institute of Standards and Technology, Department of Commerce

  5285 Port Royal Rd., Springfield, VA 22151
NSB Handbook H-28 (1957), 1957 Handbook of Screw-  171.1; 178.45; 178.46
  Thread Standards for Federal Services, Part II, 
  December 1966 Ed.


National Motor Freight Traffic Ass'n, Inc.

  Agent, 1616 P Street, NW., Washington, DC 20036
National Motor Freight Classification NMF 100-I,                 177.841
  1982.


Organization for Economic Cooperation and Development (OECD)

  OECD Publications and Information Center, 2001 L 
  Street, Suite 700, Washington, DC 20036
OECD Guideline for Testing of Chemicals, No. 404,         171.7; 173.137
  ``Acute Dermal Irritation/Corrosion,'' 1992.


Transport Canada

  TDG Canadian Government Publishing Center, 
  Supply and Services, Canada, Ottawa, Ontario, 
  Canada K1A0S9
Transportation of Dangerous Goods Regulations, as       171.7; 171.12a; 
  of July 1, 1985, including Registration Numbers     172.401; 172.502; 
  SOR/85-314, SOR/85-585, SOR/85-609, SOR/86-526,                 174.11
  SOR/88-635, SOR/87-335, SOR/87-186, SOR/89-39, 
  SOR/89-294, SOR/90-847, SOR/91-711, SOR/91-712, 
  SOR/92-447, SOR/92-600, SOR/93-203, SOR/93-274, 
  SOR/93-525, SOR/94-146, and SOR/94-264, SOR/95-
  241 and SOR/95-547 (English edition).


Truck Trailer Manufacturers Association

  1020 Princess Street, Alexandria, VA 22314
TTMA RP No. 61-94, Performance of Manhole and/or                   171.7
  Fill Opening Assemblies on MC 306 and DOT 406 
  Cargo Tanks, December 28, 1994 edition.
TTMA RP No. 81, Performance of Spring Loaded           171.7; 178.345-10
  Pressure Relief Valves on MC 306, MC 307, and MC 
  312 Tanks, 1989 Edition.
TTMA Technical Bulletin No. 107-89 Procedure for                 180.405
  Testing In-Service, Unmarked, and/or Uncertified 
  MC 306 Type Cargo Tank Manhole Covers, May 24, 
  1989 edition.


United Nations

  United Nations Sales Section, New York, NY 10017
UN Recommendations of the Transport of Dangerous      172.401; 172.407; 
  Goods, Sixth Revised Edition (1989).                           172.519
UN Recommendations on the Transport of Dangerous        171.7; 172.401; 
  Goods, Eighth Revised Edition (1993).                 172.407; 172.519
UN Recommendations on the Transport of Dangerous        171.7; 172.401; 
  Goods, Ninth Revised Edition (1995).                  172.407; 172.519



[[Page 1025]]



                    Table of CFR Titles and Chapters




                   (Revised as of September 30, 1997)

                      Title 1--General Provisions

         I  Administrative Committee of the Federal Register 
                (Parts 1--49)
        II  Office of the Federal Register (Parts 50--299)
        IV  Miscellaneous Agencies (Parts 400--500)

                          Title 2--[Reserved]

                        Title 3--The President

         I  Executive Office of the President (Parts 100--199)

                           Title 4--Accounts

         I  General Accounting Office (Parts 1--99)
        II  Federal Claims Collection Standards (General 
                Accounting Office--Department of Justice) (Parts 
                100--299)

                   Title 5--Administrative Personnel

         I  Office of Personnel Management (Parts 1--1199)
        II  Merit Systems Protection Board (Parts 1200--1299)
       III  Office of Management and Budget (Parts 1300--1399)
        IV  Advisory Committee on Federal Pay (Parts 1400--1499)
         V  The International Organizations Employees Loyalty 
                Board (Parts 1500--1599)
        VI  Federal Retirement Thrift Investment Board (Parts 
                1600--1699)
       VII  Advisory Commission on Intergovernmental Relations 
                (Parts 1700--1799)
      VIII  Office of Special Counsel (Parts 1800--1899)
        IX  Appalachian Regional Commission (Parts 1900--1999)
        XI  Armed Forces Retirement Home (Part 2100)
       XIV  Federal Labor Relations Authority, General Counsel of 
                the Federal Labor Relations Authority and Federal 
                Service Impasses Panel (Parts 2400--2499)
        XV  Office of Administration, Executive Office of the 
                President (Parts 2500--2599)
       XVI  Office of Government Ethics (Parts 2600--2699)
       XXI  Department of the Treasury (Parts 3100--3199)
      XXII  Federal Deposit Insurance Corporation (Part 3201)
     XXIII  Department of Energy (Part 3301)

[[Page 1026]]

      XXIV  Federal Energy Regulatory Commission (Part 3401)
      XXVI  Department of Defense (Part 3601)
    XXVIII  Department of Justice (Part 3801)
      XXIX  Federal Communications Commission (Parts 3900--3999)
       XXX  Farm Credit System Insurance Corporation (Parts 4000--
                4099)
      XXXI  Farm Credit Administration (Parts 4100--4199)
    XXXIII  Overseas Private Investment Corporation (Part 4301)
      XXXV  Office of Personnel Management (Part 4501)
        XL  Interstate Commerce Commission (Part 5001)
       XLI  Commodity Futures Trading Commission (Part 5101)
      XLII  Department of Labor (Part 5201)
     XLIII  National Science Foundation (Part 5301)
       XLV  Department of Health and Human Services (Part 5501)
      XLVI  Postal Rate Commission (Part 5601)
     XLVII  Federal Trade Commission (Part 5701)
    XLVIII  Nuclear Regulatory Commission (Part 5801)
         L  Department of Transportation (Part 6001)
       LII  Export-Import Bank of the United States (Part 6201)
      LIII  Department of Education (Parts 6300--6399)
       LIV  Environmental Protection Agency (Part 6401)
      LVII  General Services Administration (Part 6701)
     LVIII  Board of Governors of the Federal Reserve System (Part 
                6801)
       LIX  National Aeronautics and Space Administration (Part 
                6901)
        LX  United States Postal Service (Part 7001)
       LXI  National Labor Relations Board (Part 7101)
      LXII  Equal Employment Opportunity Commission (Part 7201)
     LXIII  Inter-American Foundation (Part 7301)
       LXV  Department of Housing and Urban Development (Part 
                7501)
      LXVI  National Archives and Records Administration (Part 
                7601)
      LXIX  Tennessee Valley Authority (Part 7901)
      LXXI  Consumer Product Safety Commission (Part 8101)
     LXXIV  Federal Mine Safety and Health Review Commission (Part 
                8401)
     LXXVI  Federal Retirement Thrift Investment Board (Part 8601)
    LXXVII  Office of Management and Budget (Part 8701)

                          Title 6--[Reserved]

                         Title 7--Agriculture

            Subtitle A--Office of the Secretary of Agriculture 
                (Parts 0--26)
            Subtitle B--Regulations of the Department of 
                Agriculture
         I  Agricultural Marketing Service (Standards, 
                Inspections, Marketing Practices), Department of 
                Agriculture (Parts 27--209)
        II  Food and Consumer Service, Department of Agriculture 
                (Parts 210--299)

[[Page 1027]]

       III  Animal and Plant Health Inspection Service, Department 
                of Agriculture (Parts 300--399)
        IV  Federal Crop Insurance Corporation, Department of 
                Agriculture (Parts 400--499)
         V  Agricultural Research Service, Department of 
                Agriculture (Parts 500--599)
        VI  Natural Resources Conservation Service, Department of 
                Agriculture (Parts 600--699)
       VII  Farm Service Agency, Department of Agriculture (Parts 
                700--799)
      VIII  Grain Inspection, Packers and Stockyards 
                Administration (Federal Grain Inspection Service), 
                Department of Agriculture (Parts 800--899)
        IX  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Fruits, Vegetables, Nuts), Department 
                of Agriculture (Parts 900--999)
         X  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Milk), Department of Agriculture 
                (Parts 1000--1199)
        XI  Agricultural Marketing Service (Marketing Agreements 
                and Orders; Miscellaneous Commodities), Department 
                of Agriculture (Parts 1200--1299)
      XIII  Northeast Dairy Compact Commission (Parts 1300--1399)
       XIV  Commodity Credit Corporation, Department of 
                Agriculture (Parts 1400--1499)
        XV  Foreign Agricultural Service, Department of 
                Agriculture (Parts 1500--1599)
       XVI  Rural Telephone Bank, Department of Agriculture (Parts 
                1600--1699)
      XVII  Rural Utilities Service, Department of Agriculture 
                (Parts 1700--1799)
     XVIII  Rural Housing Service, Rural Business-Cooperative 
                Service, Rural Utilities Service, and Farm Service 
                Agency, Department of Agriculture (Parts 1800--
                2099)
      XXVI  Office of Inspector General, Department of Agriculture 
                (Parts 2600--2699)
     XXVII  Office of Information Resources Management, Department 
                of Agriculture (Parts 2700--2799)
    XXVIII  Office of Operations, Department of Agriculture (Parts 
                2800--2899)
      XXIX  Office of Energy, Department of Agriculture (Parts 
                2900--2999)
       XXX  Office of the Chief Financial Officer, Department of 
                Agriculture (Parts 3000--3099)
      XXXI  Office of Environmental Quality, Department of 
                Agriculture (Parts 3100--3199)
     XXXII  [Reserved]
    XXXIII  Office of Transportation, Department of Agriculture 
                (Parts 3300--3399)
     XXXIV  Cooperative State Research, Education, and Extension 
                Service, Department of Agriculture (Parts 3400--
                3499)
      XXXV  Rural Housing Service, Department of Agriculture 
                (Parts 3500--3599)

[[Page 1028]]

     XXXVI  National Agricultural Statistics Service, Department 
                of Agriculture (Parts 3600--3699)
    XXXVII  Economic Research Service, Department of Agriculture 
                (Parts 3700--3799)
   XXXVIII  World Agricultural Outlook Board, Department of 
                Agriculture (Parts 3800--3899)
       XLI  [Reserved]
      XLII  Rural Business-Cooperative Service and Rural Utilities 
                Service, Department of Agriculture (Parts 4200--
                4299)

                    Title 8--Aliens and Nationality

         I  Immigration and Naturalization Service, Department of 
                Justice (Parts 1--499)

                 Title 9--Animals and Animal Products

         I  Animal and Plant Health Inspection Service, Department 
                of Agriculture (Parts 1--199)
        II  Grain Inspection, Packers and Stockyards 
                Administration (Packers and Stockyards Programs), 
                Department of Agriculture (Parts 200--299)
       III  Food Safety and Inspection Service, Meat and Poultry 
                Inspection, Department of Agriculture (Parts 300--
                599)

                           Title 10--Energy

         I  Nuclear Regulatory Commission (Parts 0--199)
        II  Department of Energy (Parts 200--699)
       III  Department of Energy (Parts 700--999)
         X  Department of Energy (General Provisions) (Parts 
                1000--1099)
        XI  United States Enrichment Corporation (Parts 1100--
                1199)
        XV  Office of the Federal Inspector for the Alaska Natural 
                Gas Transportation System (Parts 1500--1599)
      XVII  Defense Nuclear Facilities Safety Board (Parts 1700--
                1799)

                      Title 11--Federal Elections

         I  Federal Election Commission (Parts 1--9099)

                      Title 12--Banks and Banking

         I  Comptroller of the Currency, Department of the 
                Treasury (Parts 1--199)
        II  Federal Reserve System (Parts 200--299)
       III  Federal Deposit Insurance Corporation (Parts 300--399)
        IV  Export-Import Bank of the United States (Parts 400--
                499)
         V  Office of Thrift Supervision, Department of the 
                Treasury (Parts 500--599)
        VI  Farm Credit Administration (Parts 600--699)
       VII  National Credit Union Administration (Parts 700--799)

[[Page 1029]]

      VIII  Federal Financing Bank (Parts 800--899)
        IX  Federal Housing Finance Board (Parts 900--999)
        XI  Federal Financial Institutions Examination Council 
                (Parts 1100--1199)
       XIV  Farm Credit System Insurance Corporation (Parts 1400--
                1499)
        XV  Thrift Depositor Protection Oversight Board (Parts 
                1500--1599)
      XVII  Office of Federal Housing Enterprise Oversight, 
                Department of Housing and Urban Development (Parts 
                1700-1799)
     XVIII  Community Development Financial Institutions Fund, 
                Department of the Treasury (Parts 1800--1899)

               Title 13--Business Credit and Assistance

         I  Small Business Administration (Parts 1--199)
       III  Economic Development Administration, Department of 
                Commerce (Parts 300--399)

                    Title 14--Aeronautics and Space

         I  Federal Aviation Administration, Department of 
                Transportation (Parts 1--199)
        II  Office of the Secretary, Department of Transportation 
                (Aviation Proceedings) (Parts 200--399)
       III  Commercial Space Transportation, Federal Aviation 
                Administration, Department of Transportation 
                (Parts 400--499)
         V  National Aeronautics and Space Administration (Parts 
                1200--1299)

                 Title 15--Commerce and Foreign Trade

            Subtitle A--Office of the Secretary of Commerce (Parts 
                0--29)
            Subtitle B--Regulations Relating to Commerce and 
                Foreign Trade
         I  Bureau of the Census, Department of Commerce (Parts 
                30--199)
        II  National Institute of Standards and Technology, 
                Department of Commerce (Parts 200--299)
       III  International Trade Administration, Department of 
                Commerce (Parts 300--399)
        IV  Foreign-Trade Zones Board, Department of Commerce 
                (Parts 400--499)
       VII  Bureau of Export Administration, Department of 
                Commerce (Parts 700--799)
      VIII  Bureau of Economic Analysis, Department of Commerce 
                (Parts 800--899)
        IX  National Oceanic and Atmospheric Administration, 
                Department of Commerce (Parts 900--999)
        XI  Technology Administration, Department of Commerce 
                (Parts 1100--1199)
      XIII  East-West Foreign Trade Board (Parts 1300--1399)
       XIV  Minority Business Development Agency (Parts 1400--
                1499)

[[Page 1030]]

            Subtitle C--Regulations Relating to Foreign Trade 
                Agreements
        XX  Office of the United States Trade Representative 
                (Parts 2000--2099)
            Subtitle D--Regulations Relating to Telecommunications 
                and Information
     XXIII  National Telecommunications and Information 
                Administration, Department of Commerce (Parts 
                2300--2399)

                    Title 16--Commercial Practices

         I  Federal Trade Commission (Parts 0--999)
        II  Consumer Product Safety Commission (Parts 1000--1799)

             Title 17--Commodity and Securities Exchanges

         I  Commodity Futures Trading Commission (Parts 1--199)
        II  Securities and Exchange Commission (Parts 200--399)
        IV  Department of the Treasury (Parts 400--499)

          Title 18--Conservation of Power and Water Resources

         I  Federal Energy Regulatory Commission, Department of 
                Energy (Parts 1--399)
       III  Delaware River Basin Commission (Parts 400--499)
        VI  Water Resources Council (Parts 700--799)
      VIII  Susquehanna River Basin Commission (Parts 800--899)
      XIII  Tennessee Valley Authority (Parts 1300--1399)

                       Title 19--Customs Duties

         I  United States Customs Service, Department of the 
                Treasury (Parts 1--199)
        II  United States International Trade Commission (Parts 
                200--299)
       III  International Trade Administration, Department of 
                Commerce (Parts 300--399)

                     Title 20--Employees' Benefits

         I  Office of Workers' Compensation Programs, Department 
                of Labor (Parts 1--199)
        II  Railroad Retirement Board (Parts 200--399)
       III  Social Security Administration (Parts 400--499)
        IV  Employees' Compensation Appeals Board, Department of 
                Labor (Parts 500--599)
         V  Employment and Training Administration, Department of 
                Labor (Parts 600--699)
        VI  Employment Standards Administration, Department of 
                Labor (Parts 700--799)
       VII  Benefits Review Board, Department of Labor (Parts 
                800--899)
      VIII  Joint Board for the Enrollment of Actuaries (Parts 
                900--999)

[[Page 1031]]

        IX  Office of the Assistant Secretary for Veterans' 
                Employment and Training, Department of Labor 
                (Parts 1000--1099)

                       Title 21--Food and Drugs

         I  Food and Drug Administration, Department of Health and 
                Human Services (Parts 1--1299)
        II  Drug Enforcement Administration, Department of Justice 
                (Parts 1300--1399)
       III  Office of National Drug Control Policy (Parts 1400--
                1499)

                      Title 22--Foreign Relations

         I  Department of State (Parts 1--199)
        II  Agency for International Development, International 
                Development Cooperation Agency (Parts 200--299)
       III  Peace Corps (Parts 300--399)
        IV  International Joint Commission, United States and 
                Canada (Parts 400--499)
         V  United States Information Agency (Parts 500--599)
        VI  United States Arms Control and Disarmament Agency 
                (Parts 600--699)
       VII  Overseas Private Investment Corporation, International 
                Development Cooperation Agency (Parts 700--799)
        IX  Foreign Service Grievance Board Regulations (Parts 
                900--999)
         X  Inter-American Foundation (Parts 1000--1099)
        XI  International Boundary and Water Commission, United 
                States and Mexico, United States Section (Parts 
                1100--1199)
       XII  United States International Development Cooperation 
                Agency (Parts 1200--1299)
      XIII  Board for International Broadcasting (Parts 1300--
                1399)
       XIV  Foreign Service Labor Relations Board; Federal Labor 
                Relations Authority; General Counsel of the 
                Federal Labor Relations Authority; and the Foreign 
                Service Impasse Disputes Panel (Parts 1400--1499)
        XV  African Development Foundation (Parts 1500--1599)
       XVI  Japan-United States Friendship Commission (Parts 
                1600--1699)
      XVII  United States Institute of Peace (Parts 1700--1799)

                          Title 23--Highways

         I  Federal Highway Administration, Department of 
                Transportation (Parts 1--999)
        II  National Highway Traffic Safety Administration and 
                Federal Highway Administration, Department of 
                Transportation (Parts 1200--1299)
       III  National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 1300--1399)

[[Page 1032]]

                Title 24--Housing and Urban Development

            Subtitle A--Office of the Secretary, Department of 
                Housing and Urban Development (Parts 0--99)
            Subtitle B--Regulations Relating to Housing and Urban 
                Development
         I  Office of Assistant Secretary for Equal Opportunity, 
                Department of Housing and Urban Development (Parts 
                100--199)
        II  Office of Assistant Secretary for Housing-Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Parts 200--299)
       III  Government National Mortgage Association, Department 
                of Housing and Urban Development (Parts 300--399)
         V  Office of Assistant Secretary for Community Planning 
                and Development, Department of Housing and Urban 
                Development (Parts 500--599)
        VI  Office of Assistant Secretary for Community Planning 
                and Development, Department of Housing and Urban 
                Development (Parts 600--699) [Reserved]
       VII  Office of the Secretary, Department of Housing and 
                Urban Development (Housing Assistance Programs and 
                Public and Indian Housing Programs) (Parts 700--
                799)
      VIII  Office of the Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Section 8 Housing Assistance 
                Programs and Section 202 Direct Loan Program) 
                (Parts 800--899)
        IX  Office of Assistant Secretary for Public and Indian 
                Housing, Department of Housing and Urban 
                Development (Parts 900--999)
         X  Office of Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Interstate Land Sales 
                Registration Program) (Parts 1700--1799)
       XII  Office of Inspector General, Department of Housing and 
                Urban Development (Parts 2000--2099)
        XX  Office of Assistant Secretary for Housing--Federal 
                Housing Commissioner, Department of Housing and 
                Urban Development (Parts 3200--3899)
       XXV  Neighborhood Reinvestment Corporation (Parts 4100--
                4199)

                           Title 25--Indians

         I  Bureau of Indian Affairs, Department of the Interior 
                (Parts 1--299)
        II  Indian Arts and Crafts Board, Department of the 
                Interior (Parts 300--399)
       III  National Indian Gaming Commission, Department of the 
                Interior (Parts 500--599)
        IV  Office of Navajo and Hopi Indian Relocation (Parts 
                700--799)
         V  Bureau of Indian Affairs, Department of the Interior, 
                and Indian Health Service, Department of Health 
                and Human Services (Part 900)
        VI  Office of the Assistant Secretary-Indian Affairs, 
                Department of the Interior (Part 1001)

[[Page 1033]]

       VII  Office of the Special Trustee for American Indians, 
                Department of the Interior (Part 1200)

                      Title 26--Internal Revenue

         I  Internal Revenue Service, Department of the Treasury 
                (Parts 1--799)

           Title 27--Alcohol, Tobacco Products and Firearms

         I  Bureau of Alcohol, Tobacco and Firearms, Department of 
                the Treasury (Parts 1--299)

                   Title 28--Judicial Administration

         I  Department of Justice (Parts 0--199)
       III  Federal Prison Industries, Inc., Department of Justice 
                (Parts 300--399)
         V  Bureau of Prisons, Department of Justice (Parts 500--
                599)
        VI  Offices of Independent Counsel, Department of Justice 
                (Parts 600--699)
       VII  Office of Independent Counsel (Parts 700--799)

                            Title 29--Labor

            Subtitle A--Office of the Secretary of Labor (Parts 
                0--99)
            Subtitle B--Regulations Relating to Labor
         I  National Labor Relations Board (Parts 100--199)
        II  Office of Labor-Management Standards, Department of 
                Labor (Parts 200--299)
       III  National Railroad Adjustment Board (Parts 300--399)
        IV  Office of Labor-Management Standards, Department of 
                Labor (Parts 400--499)
         V  Wage and Hour Division, Department of Labor (Parts 
                500--899)
        IX  Construction Industry Collective Bargaining Commission 
                (Parts 900--999)
         X  National Mediation Board (Parts 1200--1299)
       XII  Federal Mediation and Conciliation Service (Parts 
                1400--1499)
       XIV  Equal Employment Opportunity Commission (Parts 1600--
                1699)
      XVII  Occupational Safety and Health Administration, 
                Department of Labor (Parts 1900--1999)
        XX  Occupational Safety and Health Review Commission 
                (Parts 2200--2499)
       XXV  Pension and Welfare Benefits Administration, 
                Department of Labor (Parts 2500--2599)
     XXVII  Federal Mine Safety and Health Review Commission 
                (Parts 2700--2799)
        XL  Pension Benefit Guaranty Corporation (Parts 4000--
                4999)

[[Page 1034]]

                      Title 30--Mineral Resources

         I  Mine Safety and Health Administration, Department of 
                Labor (Parts 1--199)
        II  Minerals Management Service, Department of the 
                Interior (Parts 200--299)
       III  Board of Surface Mining and Reclamation Appeals, 
                Department of the Interior (Parts 300--399)
        IV  Geological Survey, Department of the Interior (Parts 
                400--499)
        VI  Bureau of Mines, Department of the Interior (Parts 
                600--699)
       VII  Office of Surface Mining Reclamation and Enforcement, 
                Department of the Interior (Parts 700--999)

                 Title 31--Money and Finance: Treasury

            Subtitle A--Office of the Secretary of the Treasury 
                (Parts 0--50)
            Subtitle B--Regulations Relating to Money and Finance
         I  Monetary Offices, Department of the Treasury (Parts 
                51--199)
        II  Fiscal Service, Department of the Treasury (Parts 
                200--399)
        IV  Secret Service, Department of the Treasury (Parts 
                400--499)
         V  Office of Foreign Assets Control, Department of the 
                Treasury (Parts 500--599)
        VI  Bureau of Engraving and Printing, Department of the 
                Treasury (Parts 600--699)
       VII  Federal Law Enforcement Training Center, Department of 
                the Treasury (Parts 700--799)
      VIII  Office of International Investment, Department of the 
                Treasury (Parts 800--899)

                      Title 32--National Defense

            Subtitle A--Department of Defense
         I  Office of the Secretary of Defense (Parts 1--399)
         V  Department of the Army (Parts 400--699)
        VI  Department of the Navy (Parts 700--799)
       VII  Department of the Air Force (Parts 800--1099)
            Subtitle B--Other Regulations Relating to National 
                Defense
       XII  Defense Logistics Agency (Parts 1200--1299)
       XVI  Selective Service System (Parts 1600--1699)
       XIX  Central Intelligence Agency (Parts 1900--1999)
        XX  Information Security Oversight Office, National 
                Archives and Records Administration (Parts 2000--
                2099)
       XXI  National Security Council (Parts 2100--2199)
      XXIV  Office of Science and Technology Policy (Parts 2400--
                2499)
     XXVII  Office for Micronesian Status Negotiations (Parts 
                2700--2799)
    XXVIII  Office of the Vice President of the United States 
                (Parts 2800--2899)
      XXIX  Presidential Commission on the Assignment of Women in 
                the Armed Forces (Part 2900)

[[Page 1035]]

               Title 33--Navigation and Navigable Waters

         I  Coast Guard, Department of Transportation (Parts 1--
                199)
        II  Corps of Engineers, Department of the Army (Parts 
                200--399)
        IV  Saint Lawrence Seaway Development Corporation, 
                Department of Transportation (Parts 400--499)

                          Title 34--Education

            Subtitle A--Office of the Secretary, Department of 
                Education (Parts 1--99)
            Subtitle B--Regulations of the Offices of the 
                Department of Education
         I  Office for Civil Rights, Department of Education 
                (Parts 100--199)
        II  Office of Elementary and Secondary Education, 
                Department of Education (Parts 200--299)
       III  Office of Special Education and Rehabilitative 
                Services, Department of Education (Parts 300--399)
        IV  Office of Vocational and Adult Education, Department 
                of Education (Parts 400--499)
         V  Office of Bilingual Education and Minority Languages 
                Affairs, Department of Education (Parts 500--599)
        VI  Office of Postsecondary Education, Department of 
                Education (Parts 600--699)
       VII  Office of Educational Research and Improvement, 
                Department of Education (Parts 700--799)
        XI  National Institute for Literacy (Parts 1100-1199)
            Subtitle C--Regulations Relating to Education
       XII  National Council on Disability (Parts 1200--1299)

                        Title 35--Panama Canal

         I  Panama Canal Regulations (Parts 1--299)

             Title 36--Parks, Forests, and Public Property

         I  National Park Service, Department of the Interior 
                (Parts 1--199)
        II  Forest Service, Department of Agriculture (Parts 200--
                299)
       III  Corps of Engineers, Department of the Army (Parts 
                300--399)
        IV  American Battle Monuments Commission (Parts 400--499)
         V  Smithsonian Institution (Parts 500--599)
       VII  Library of Congress (Parts 700--799)
      VIII  Advisory Council on Historic Preservation (Parts 800--
                899)
        IX  Pennsylvania Avenue Development Corporation (Parts 
                900--999)
        XI  Architectural and Transportation Barriers Compliance 
                Board (Parts 1100--1199)
       XII  National Archives and Records Administration (Parts 
                1200--1299)
       XIV  Assassination Records Review Board (Parts 1400-1499)

[[Page 1036]]

             Title 37--Patents, Trademarks, and Copyrights

         I  Patent and Trademark Office, Department of Commerce 
                (Parts 1--199)
        II  Copyright Office, Library of Congress (Parts 200--299)
        IV  Assistant Secretary for Technology Policy, Department 
                of Commerce (Parts 400--499)
         V  Under Secretary for Technology, Department of Commerce 
                (Parts 500--599)

           Title 38--Pensions, Bonuses, and Veterans' Relief

         I  Department of Veterans Affairs (Parts 0--99)

                       Title 39--Postal Service

         I  United States Postal Service (Parts 1--999)
       III  Postal Rate Commission (Parts 3000--3099)

                  Title 40--Protection of Environment

         I  Environmental Protection Agency (Parts 1--799)
         V  Council on Environmental Quality (Parts 1500--1599)

          Title 41--Public Contracts and Property Management

            Subtitle B--Other Provisions Relating to Public 
                Contracts
        50  Public Contracts, Department of Labor (Parts 50-1--50-
                999)
        51  Committee for Purchase From People Who Are Blind or 
                Severely Disabled (Parts 51-1--51-99)
        60  Office of Federal Contract Compliance Programs, Equal 
                Employment Opportunity, Department of Labor (Parts 
                60-1--60-999)
        61  Office of the Assistant Secretary for Veterans 
                Employment and Training, Department of Labor 
                (Parts 61-1--61-999)
            Subtitle C--Federal Property Management Regulations 
                System
       101  Federal Property Management Regulations (Parts 101-1--
                101-99)
       105  General Services Administration (Parts 105-1--105-999)
       109  Department of Energy Property Management Regulations 
                (Parts 109-1--109-99)
       114  Department of the Interior (Parts 114-1--114-99)
       115  Environmental Protection Agency (Parts 115-1--115-99)
       128  Department of Justice (Parts 128-1--128-99)
            Subtitle D--Other Provisions Relating to Property 
                Management [Reserved]
            Subtitle E--Federal Information Resources Management 
                Regulations System
       201  Federal Information Resources Management Regulation 
                (Parts 201-1--201-99) [Reserved]
            Subtitle F--Federal Travel Regulation System
       301  Travel Allowances (Parts 301-1--301-99)
       302  Relocation Allowances (Parts 302-1--302-99)

[[Page 1037]]

       303  Payment of Expenses Connected with the Death of 
                Certain Employees (Parts 303-1--303-2)
       304  Payment from a Non-Federal Source for Travel Expenses 
                (Parts 304-1--304-99)

                        Title 42--Public Health

         I  Public Health Service, Department of Health and Human 
                Services (Parts 1--199)
        IV  Health Care Financing Administration, Department of 
                Health and Human Services (Parts 400--499)
         V  Office of Inspector General-Health Care, Department of 
                Health and Human Services (Parts 1000--1999)

                   Title 43--Public Lands: Interior

            Subtitle A--Office of the Secretary of the Interior 
                (Parts 1--199)
            Subtitle B--Regulations Relating to Public Lands
         I  Bureau of Reclamation, Department of the Interior 
                (Parts 200--499)
        II  Bureau of Land Management, Department of the Interior 
                (Parts 1000--9999)
       III  Utah Reclamation Mitigation and Conservation 
                Commission (Parts 10000--10005)

             Title 44--Emergency Management and Assistance

         I  Federal Emergency Management Agency (Parts 0--399)
        IV  Department of Commerce and Department of 
                Transportation (Parts 400--499)

                       Title 45--Public Welfare

            Subtitle A--Department of Health and Human Services 
                (Parts 1--199)
            Subtitle B--Regulations Relating to Public Welfare
        II  Office of Family Assistance (Assistance Programs), 
                Administration for Children and Families, 
                Department of Health and Human Services (Parts 
                200--299)
       III  Office of Child Support Enforcement (Child Support 
                Enforcement Program), Administration for Children 
                and Families, Department of Health and Human 
                Services (Parts 300--399)
        IV  Office of Refugee Resettlement, Administration for 
                Children and Families Department of Health and 
                Human Services (Parts 400--499)
         V  Foreign Claims Settlement Commission of the United 
                States, Department of Justice (Parts 500--599)
        VI  National Science Foundation (Parts 600--699)
       VII  Commission on Civil Rights (Parts 700--799)
      VIII  Office of Personnel Management (Parts 800--899)

[[Page 1038]]

         X  Office of Community Services, Administration for 
                Children and Families, Department of Health and 
                Human Services (Parts 1000--1099)
        XI  National Foundation on the Arts and the Humanities 
                (Parts 1100--1199)
       XII  ACTION (Parts 1200--1299)
      XIII  Office of Human Development Services, Department of 
                Health and Human Services (Parts 1300--1399)
       XVI  Legal Services Corporation (Parts 1600--1699)
      XVII  National Commission on Libraries and Information 
                Science (Parts 1700--1799)
     XVIII  Harry S. Truman Scholarship Foundation (Parts 1800--
                1899)
       XXI  Commission on Fine Arts (Parts 2100--2199)
      XXII  Christopher Columbus Quincentenary Jubilee Commission 
                (Parts 2200--2299)
     XXIII  Arctic Research Commission (Part 2301)
      XXIV  James Madison Memorial Fellowship Foundation (Parts 
                2400--2499)
       XXV  Corporation for National and Community Service (Parts 
                2500--2599)

                          Title 46--Shipping

         I  Coast Guard, Department of Transportation (Parts 1--
                199)
        II  Maritime Administration, Department of Transportation 
                (Parts 200--399)
        IV  Federal Maritime Commission (Parts 500--599)

                      Title 47--Telecommunication

         I  Federal Communications Commission (Parts 0--199)
        II  Office of Science and Technology Policy and National 
                Security Council (Parts 200--299)
       III  National Telecommunications and Information 
                Administration, Department of Commerce (Parts 
                300--399)

           Title 48--Federal Acquisition Regulations System

         1  Federal Acquisition Regulation (Parts 1--99)
         2  Department of Defense (Parts 200--299)
         3  Department of Health and Human Services (Parts 300--
                399)
         4  Department of Agriculture (Parts 400--499)
         5  General Services Administration (Parts 500--599)
         6  Department of State (Parts 600--699)
         7  United States Agency for International Development 
                (Parts 700--799)
         8  Department of Veterans Affairs (Parts 800--899)
         9  Department of Energy (Parts 900--999)
        10  Department of the Treasury (Parts 1000--1099)

[[Page 1039]]

        12  Department of Transportation (Parts 1200--1299)
        13  Department of Commerce (Parts 1300--1399)
        14  Department of the Interior (Parts 1400--1499)
        15  Environmental Protection Agency (Parts 1500--1599)
        16  Office of Personnel Management Federal Employees 
                Health Benefits Acquisition Regulation (Parts 
                1600--1699)
        17  Office of Personnel Management (Parts 1700--1799)
        18  National Aeronautics and Space Administration (Parts 
                1800--1899)
        19  United States Information Agency (Parts 1900--1999)
        20  Nuclear Regulatory Commission (Parts 2000--2099)
        21  Office of Personnel Management, Federal Employees 
                Group Life Insurance Federal Acquisition 
                Regulation (Parts 2100--2199)
        23  Social Security Administration (Parts 2300--2399)
        24  Department of Housing and Urban Development (Parts 
                2400--2499)
        25  National Science Foundation (Parts 2500--2599)
        28  Department of Justice (Parts 2800--2899)
        29  Department of Labor (Parts 2900--2999)
        34  Department of Education Acquisition Regulation (Parts 
                3400--3499)
        35  Panama Canal Commission (Parts 3500--3599)
        44  Federal Emergency Management Agency (Parts 4400--4499)
        51  Department of the Army Acquisition Regulations (Parts 
                5100--5199)
        52  Department of the Navy Acquisition Regulations (Parts 
                5200--5299)
        53  Department of the Air Force Federal Acquisition 
                Regulation Supplement (Parts 5300--5399)
        54  Defense Logistics Agency, Department of Defense (Part 
                5452)
        57  African Development Foundation (Parts 5700--5799)
        61  General Services Administration Board of Contract 
                Appeals (Parts 6100--6199)
        63  Department of Transportation Board of Contract Appeals 
                (Parts 6300--6399)
        99  Cost Accounting Standards Board, Office of Federal 
                Procurement Policy, Office of Management and 
                Budget (Parts 9900--9999)

                       Title 49--Transportation

            Subtitle A--Office of the Secretary of Transportation 
                (Parts 1--99)
            Subtitle B--Other Regulations Relating to 
                Transportation
         I  Research and Special Programs Administration, 
                Department of Transportation (Parts 100--199)
        II  Federal Railroad Administration, Department of 
                Transportation (Parts 200--299)

[[Page 1040]]

       III  Federal Highway Administration, Department of 
                Transportation (Parts 300--399)
        IV  Coast Guard, Department of Transportation (Parts 400--
                499)
         V  National Highway Traffic Safety Administration, 
                Department of Transportation (Parts 500--599)
        VI  Federal Transit Administration, Department of 
                Transportation (Parts 600--699)
       VII  National Railroad Passenger Corporation (AMTRAK) 
                (Parts 700--799)
      VIII  National Transportation Safety Board (Parts 800--999)
         X  Surface Transportation Board, Department of 
                Transportation (Parts 1000--1399)

                   Title 50--Wildlife and Fisheries

         I  United States Fish and Wildlife Service, Department of 
                the Interior (Parts 1--199)
        II  National Marine Fisheries Service, National Oceanic 
                and Atmospheric Administration, Department of 
                Commerce (Parts 200--299)
       III  International Fishing and Related Activities (Parts 
                300--399)
        IV  Joint Regulations (United States Fish and Wildlife 
                Service, Department of the Interior and National 
                Marine Fisheries Service, National Oceanic and 
                Atmospheric Administration, Department of 
                Commerce); Endangered Species Committee 
                Regulations (Parts 400--499)
         V  Marine Mammal Commission (Parts 500--599)
        VI  Fishery Conservation and Management, National Oceanic 
                and Atmospheric Administration, Department of 
                Commerce (Parts 600--699)

                      CFR Index and Finding Aids

            Subject/Agency Index
            List of Agency Prepared Indexes
            Parallel Tables of Statutory Authorities and Rules
            Acts Requiring Publication in the Federal Register
            List of CFR Titles, Chapters, Subchapters, and Parts
            Alphabetical List of Agencies Appearing in the CFR



[[Page 1041]]





           Alphabetical List of Agencies Appearing in the CFR




                   (Revised as of September 30, 1997)

                                                  CFR Title, Subtitle or 
                     Agency                               Chapter

ACTION                                            45, XII
Administrative Committee of the Federal Register  1, I
Advanced Research Projects Agency                 32, I
Advisory Commission on Intergovernmental          5, VII
     Relations
Advisory Committee on Federal Pay                 5, IV
Advisory Council on Historic Preservation         36, VIII
African Development Foundation                    22, XV
  Federal Acquisition Regulation                  48, 57
Agency for International Development, United      22, II
     States
  Federal Acquisition Regulation                  48, 7
Agricultural Marketing Service                    7, I, IX, X, XI
Agricultural Research Service                     7, V
Agriculture Department
  Agricultural Marketing Service                  7, I, IX, X, XI
  Agricultural Research Service                   7, V
  Animal and Plant Health Inspection Service      7, III; 9, I
  Chief Financial Officer, Office of              7, XXX
  Commodity Credit Corporation                    7, XIV
  Cooperative State Research, Education, and      7, XXXIV
       Extension Service
  Economic Research Service                       7, XXXVII
  Energy, Office of                               7, XXIX
  Environmental Quality, Office of                7, XXXI
  Farm Service Agency                             7, VII, XVIII
  Federal Acquisition Regulation                  48, 4
  Federal Crop Insurance Corporation              7, IV
  Food and Consumer Service                       7, II
  Food Safety and Inspection Service              9, III
  Foreign Agricultural Service                    7, XV
  Forest Service                                  36, II
  Grain Inspection, Packers and Stockyards        7, VIII; 9, II
       Administration
  Information Resources Management, Office of     7, XXVII
  Inspector General, Office of                    7, XXVI
  National Agricultural Library                   7, XLI
  National Agricultural Statistics Service        7, XXXVI
  Natural Resources Conservation Service          7, VI
  Operations, Office of                           7, XXVIII
  Rural Business-Cooperative Service              7, XVIII, XLII
  Rural Development Administration                7, XLII
  Rural Housing Service                           7, XVIII, XXXV
  Rural Telephone Bank                            7, XVI
  Rural Utilities Service                         7, XVII, XVIII, XLII
  Secretary of Agriculture, Office of             7, Subtitle A
  Transportation, Office of                       7, XXXIII
  World Agricultural Outlook Board                7, XXXVIII
Air Force Department                              32, VII
  Federal Acquisition Regulation Supplement       48, 53
Alaska Natural Gas Transportation System, Office  10, XV
     of the Federal Inspector
Alcohol, Tobacco and Firearms, Bureau of          27, I
AMTRAK                                            49, VII
American Battle Monuments Commission              36, IV
American Indians, Office of the Special Trustee   25, VII

[[Page 1042]]

Animal and Plant Health Inspection Service        7, III; 9, I
Appalachian Regional Commission                   5, IX
Architectural and Transportation Barriers         36, XI
     Compliance Board
Arctic Research Commission                        45, XXIII
Armed Forces Retirement Home                      5, XI
Arms Control and Disarmament Agency, United       22, VI
     States
Army Department                                   32, V
  Engineers, Corps of                             33, II; 36, III
  Federal Acquisition Regulation                  48, 51
Assassination Records Review Board                36, XIV
Benefits Review Board                             20, VII
Bilingual Education and Minority Languages        34, V
     Affairs, Office of
Blind or Severely Disabled, Committee for         41, 51
     Purchase From People Who Are
Board for International Broadcasting              22, XIII
Census Bureau                                     15, I
Central Intelligence Agency                       32, XIX
Chief Financial Officer, Office of                7, XXX
Child Support Enforcement, Office of              45, III
Children and Families, Administration for         45, II, III, IV, X
Christopher Columbus Quincentenary Jubilee        45, XXII
     Commission
Civil Rights, Commission on                       45, VII
Civil Rights, Office for                          34, I
Coast Guard                                       33, I; 46, I; 49, IV
Commerce Department                               44, IV
  Census Bureau                                   15, I`
  Economic Affairs, Under Secretary               37, V
  Economic Analysis, Bureau of                    15, VIII
  Economic Development Administration             13, III
  Emergency Management and Assistance             44, IV
  Export Administration, Bureau of                15, VII
  Federal Acquisition Regulation                  48, 13
  Fishery Conservation and Management             50, VI
  Foreign-Trade Zones Board                       15, IV
  International Trade Administration              15, III; 19, III
  National Institute of Standards and Technology  15, II
  National Marine Fisheries Service               50, II, IV
  National Oceanic and Atmospheric                15, IX; 50, II, III, IV, 
       Administration                             VI
  National Telecommunications and Information     15, XXIII; 47, III
       Administration
  National Weather Service                        15, IX
  Patent and Trademark Office                     37, I
  Productivity, Technology and Innovation,        37, IV
       Assistant Secretary for
  Secretary of Commerce, Office of                15, Subtitle A
  Technology, Under Secretary for                 37, V
  Technology Administration                       15, XI
  Technology Policy, Assistant Secretary for      37, IV
Commercial Space Transportation                   14, III
Commodity Credit Corporation                      7, XIV
Commodity Futures Trading Commission              5, XLI; 17, I
Community Planning and Development, Office of     24, V, VI
     Assistant Secretary for
Community Services, Office of                     45, X
Comptroller of the Currency                       12, I
Construction Industry Collective Bargaining       29, IX
     Commission
Consumer Product Safety Commission                5, LXXI; 16, II
Cooperative State Research, Education, and        7, XXXIV
     Extension Service
Copyright Office                                  37, II
Cost Accounting Standards Board                   48, 99
Council on Environmental Quality                  40, V
Customs Service, United States                    19, I
Defense Contract Audit Agency                     32, I
Defense Department                                5, XXVI; 32, Subtitle A
  Advanced Research Projects Agency               32, I
  Air Force Department                            32, VII

[[Page 1043]]

  Army Department                                 32, V; 33, II; 36, III, 
                                                  48, 51
  Defense Intelligence Agency                     32, I
  Defense Logistics Agency                        32, I, XII; 48, 54
  Defense Mapping Agency                          32, I
  Engineers, Corps of                             33, II; 36, III
  Federal Acquisition Regulation                  48, 2
  Navy Department                                 32, VI; 48, 52
  Secretary of Defense, Office of                 32, I
Defense Contract Audit Agency                     32, I
Defense Intelligence Agency                       32, I
Defense Logistics Agency                          32, XII; 48, 54
Defense Mapping Agency                            32, I
Defense Nuclear Facilities Safety Board           10, XVII
Delaware River Basin Commission                   18, III
Drug Enforcement Administration                   21, II
East-West Foreign Trade Board                     15, XIII
Economic Affairs, Under Secretary                 37, V
Economic Analysis, Bureau of                      15, VIII
Economic Development Administration               13, III
Economic Research Service                         7, XXXVII
Education, Department of                          5, LIII
  Bilingual Education and Minority Languages      34, V
       Affairs, Office of
  Civil Rights, Office for                        34, I
  Educational Research and Improvement, Office    34, VII
       of
  Elementary and Secondary Education, Office of   34, II
  Federal Acquisition Regulation                  48, 34
  Postsecondary Education, Office of              34, VI
  Secretary of Education, Office of               34, Subtitle A
  Special Education and Rehabilitative Services,  34, III
       Office of
  Vocational and Adult Education, Office of       34, IV
Educational Research and Improvement, Office of   34, VII
Elementary and Secondary Education, Office of     34, II
Employees' Compensation Appeals Board             20, IV
Employees Loyalty Board                           5, V
Employment and Training Administration            20, V
Employment Standards Administration               20, VI
Endangered Species Committee                      50, IV
Energy, Department of                             5, XXIII; 10, II, III, X
  Federal Acquisition Regulation                  48, 9
  Federal Energy Regulatory Commission            5, XXIV; 18, I
  Property Management Regulations                 41, 109
Energy, Office of                                 7, XXIX
Engineers, Corps of                               33, II; 36, III
Engraving and Printing, Bureau of                 31, VI
Enrichment Corporation, United States             10, XI
Environmental Protection Agency                   5, LIV; 40, I
  Federal Acquisition Regulation                  48, 15
  Property Management Regulations                 41, 115
Environmental Quality, Office of                  7, XXXI
Equal Employment Opportunity Commission           5, LXII; 29, XIV
Equal Opportunity, Office of Assistant Secretary  24, I
     for
Executive Office of the President                 3, I
  Administration, Office of                       5, XV
  Environmental Quality, Council on               40, V
  Management and Budget, Office of                25, III, LXXVII; 48, 99
  National Drug Control Policy, Office of         21, III
  National Security Council                       32, XXI; 47, 2
  Presidential Documents                          3
  Science and Technology Policy, Office of        32, XXIV; 47, II
  Trade Representative, Office of the United      15, XX
       States
Export Administration, Bureau of                  15, VII
Export-Import Bank of the United States           5, LII; 12, IV
Family Assistance, Office of                      45, II
Farm Credit Administration                        5, XXXI; 12, VI
Farm Credit System Insurance Corporation          5, XXX; 12, XIV

[[Page 1044]]

Farm Service Agency                               7, VII, XVIII
Federal Acquisition Regulation                    48, 1
Federal Aviation Administration                   14, I
  Commercial Space Transportation                 14, III
Federal Claims Collection Standards               4, II
Federal Communications Commission                 5, XXIX; 47, I
Federal Contract Compliance Programs, Office of   41, 60
Federal Crop Insurance Corporation                7, IV
Federal Deposit Insurance Corporation             5, XXII; 12, III
Federal Election Commission                       11, I
Federal Emergency Management Agency               44, I
  Federal Acquisition Regulation                  48, 44
Federal Employees Group Life Insurance Federal    48, 21
     Acquisition Regulation
Federal Employees Health Benefits Acquisition     48, 16
     Regulation
Federal Energy Regulatory Commission              5, XXIV; 18, I
Federal Financial Institutions Examination        12, XI
     Council
Federal Financing Bank                            12, VIII
Federal Highway Administration                    23, I, II; 49, III
Federal Home Loan Mortgage Corporation            1, IV
Federal Housing Enterprise Oversight Office       12, XVII
Federal Housing Finance Board                     12, IX
Federal Inspector for the Alaska Natural Gas      10, XV
     Transportation System, Office of
Federal Labor Relations Authority, and General    5, XIV; 22, XIV
     Counsel of the Federal Labor Relations 
     Authority
Federal Law Enforcement Training Center           31, VII
Federal Maritime Commission                       46, IV
Federal Mediation and Conciliation Service        29, XII
Federal Mine Safety and Health Review Commission  5, LXXIV; 29, XXVII
Federal Pay, Advisory Committee on                5, IV
Federal Prison Industries, Inc.                   28, III
Federal Procurement Policy Office                 48, 99
Federal Property Management Regulations           41, 101
Federal Property Management Regulations System    41, Subtitle C
Federal Railroad Administration                   49, II
Federal Register, Administrative Committee of     1, I
Federal Register, Office of                       1, II
Federal Reserve System                            12, II
  Board of Governors                              5, LVIII
Federal Retirement Thrift Investment Board        5, VI, LXXVI
Federal Service Impasses Panel                    5, XIV
Federal Trade Commission                          5, XLVII; 16, I
Federal Transit Administration                    49, VI
Federal Travel Regulation System                  41, Subtitle F
Fine Arts, Commission on                          45, XXI
Fiscal Service                                    31, II
Fish and Wildlife Service, United States          50, I, IV
Fishery Conservation and Management               50, VI
Food and Drug Administration                      21, I
Food and Consumer Service                         7, II
Food Safety and Inspection Service                9, III
Foreign Agricultural Service                      7, XV
Foreign Assets Control, Office of                 31, V
Foreign Claims Settlement Commission of the       45, V
     United States
Foreign Service Grievance Board                   22, IX
Foreign Service Impasse Disputes Panel            22, XIV
Foreign Service Labor Relations Board             22, XIV
Foreign-Trade Zones Board                         15, IV
Forest Service                                    36, II
General Accounting Office                         4, I, II
General Services Administration                   5, LVII
  Contract Appeals, Board of                      48, 61
  Federal Acquisition Regulation                  48, 5
  Federal Property Management Regulations System  41, 101, 105
  Federal Travel Regulation System                41, Subtitle F
  Payment From a Non-Federal Source for Travel    41, 304
     Expenses
[[Page 1045]]

  Payment of Expenses Connected With the Death    41, 303
       of Certain Employees
  Relocation Allowances                           41, 302
  Travel Allowances                               41, 301
Geological Survey                                 30, IV
Government Ethics, Office of                      5, XVI
Government National Mortgage Association          24, III
Grain Inspection, Packers and Stockyards          7, VIII; 9, II
     Administration
Great Lakes Pilotage                              46, III
Harry S. Truman Scholarship Foundation            45, XVIII
Health and Human Services, Department of          5, XLV; 45, Subtitle A
  Child Support Enforcement, Office of            45, III
  Children and Families, Administration for       45, II, III, IV, X
  Community Services, Office of                   45, X
  Family Assistance, Office of                    45, II
  Federal Acquisition Regulation                  48, 3
  Food and Drug Administration                    21, I
  Health Care Financing Administration            42, IV
  Human Development Services, Office of           45, XIII
  Indian Health Service                           25, V
  Inspector General (Health Care), Office of      42, V
  Public Health Service                           42, I
  Refugee Resettlement, Office of                 45, IV
Health Care Financing Administration              42, IV
Housing and Urban Development, Department of      5, LXV; 24, Subtitle B
  Community Planning and Development, Office of   24, V, VI
       Assistant Secretary for
  Equal Opportunity, Office of Assistant          24, I
       Secretary for
  Federal Acquisition Regulation                  48, 24
  Federal Housing Enterprise Oversight, Office    12, XVII
       of
  Government National Mortgage Association        24, III
  Housing--Federal Housing Commissioner, Office   24, II, VIII, X, XX
       of Assistant Secretary for
  Inspector General, Office of                    24, XII
  Public and Indian Housing, Office of Assistant  24, IX
       Secretary for
  Secretary, Office of                            24, Subtitle A, VII
Housing--Federal Housing Commissioner, Office of  24, II, VIII, X, XX
     Assistant Secretary for
Human Development Services, Office of             45, XIII
Immigration and Naturalization Service            8, I
Independent Counsel, Office of                    28, VII
Indian Affairs, Bureau of                         25, I, V
Indian Affairs, Office of the Assistant           25, VI
     Secretary
Indian Arts and Crafts Board                      25, II
Indian Health Service                             25, V
Information Agency, United States                 22, V
  Federal Acquisition Regulation                  48, 19
Information Resources Management, Office of       7, XXVII
Information Security Oversight Office, National   32, XX
     Archives and Records Administration
Inspector General
  Agriculture Department                          7, XXVI
  Health and Human Services Department            42, V
  Housing and Urban Development Department        24, XII
Institute of Peace, United States                 22, XVII
Inter-American Foundation                         5, LXIII; 22, X
Intergovernmental Relations, Advisory Commission  5, VII
     on
Interior Department
  American Indians, Office of the Special         25, VII
       Trustee
  Endangered Species Committee                    50, IV
  Federal Acquisition Regulation                  48, 14
  Federal Property Management Regulations System  41, 114
  Fish and Wildlife Service, United States        50, I, IV
  Geological Survey                               30, IV
  Indian Affairs, Bureau of                       25, I, V
  Indian Affairs, Office of the Assistant         25, VI
       Secretary
  Indian Arts and Crafts Board                    25, II

[[Page 1046]]

  Land Management, Bureau of                      43, II
  Minerals Management Service                     30, II
  Mines, Bureau of                                30, VI
  National Indian Gaming Commission               25, III
  National Park Service                           36, I
  Reclamation, Bureau of                          43, I
  Secretary of the Interior, Office of            43, Subtitle A
  Surface Mining and Reclamation Appeals, Board   30, III
       of
  Surface Mining Reclamation and Enforcement,     30, VII
       Office of
Internal Revenue Service                          26, I
International Boundary and Water Commission,      22, XI
     United States and Mexico, United States 
     Section
International Development, United States Agency   22, II
     for
  Federal Acquisition Regulation                  48, 7
International Development Cooperation Agency,     22, XII
     United States
  International Development, United States        22, II; 48, 7
       Agency for
  Overseas Private Investment Corporation         5, XXXIII; 22, VII
International Fishing and Related Activities      50, III
International Investment, Office of               31, VIII
International Joint Commission, United States     22, IV
     and Canada
International Organizations Employees Loyalty     5, V
     Board
International Trade Administration                15, III; 19, III
International Trade Commission, United States     19, II
Interstate Commerce Commission                    5, XL
James Madison Memorial Fellowship Foundation      45, XXIV
Japan-United States Friendship Commission         22, XVI
Joint Board for the Enrollment of Actuaries       20, VIII
Justice Department                                5, XXVIII; 28, I
  Drug Enforcement Administration                 21, II
  Federal Acquisition Regulation                  48, 28
  Federal Claims Collection Standards             4, II
  Federal Prison Industries, Inc.                 28, III
  Foreign Claims Settlement Commission of the     45, V
       United States
  Immigration and Naturalization Service          8, I
  Offices of Independent Counsel                  28, VI
  Prisons, Bureau of                              28, V
  Property Management Regulations                 41, 128
Labor Department                                  5, XLII
  Benefits Review Board                           20, VII
  Employees' Compensation Appeals Board           20, IV
  Employment and Training Administration          20, V
  Employment Standards Administration             20, VI
  Federal Acquisition Regulation                  48, 29
  Federal Contract Compliance Programs, Office    41, 60
       of
  Federal Procurement Regulations System          41, 50
  Labor-Management Standards, Office of           29, II, IV
  Mine Safety and Health Administration           30, I
  Occupational Safety and Health Administration   29, XVII
  Pension and Welfare Benefits Administration     29, XXV
  Public Contracts                                41, 50
  Secretary of Labor, Office of                   29, Subtitle A
  Veterans' Employment and Training, Office of    41, 61; 20, IX
       the Assistant Secretary for
  Wage and Hour Division                          29, V
  Workers' Compensation Programs, Office of       20, I
Labor-Management Standards, Office of             29, II, IV
Land Management, Bureau of                        43, II
Legal Services Corporation                        45, XVI
Library of Congress                               36, VII
  Copyright Office                                37, II
Management and Budget, Office of                  5, III, LXXVII; 48, 99
Marine Mammal Commission                          50, V
Maritime Administration                           46, II
Merit Systems Protection Board                    5, II
Micronesian Status Negotiations, Office for       32, XXVII

[[Page 1047]]

Mine Safety and Health Administration             30, I
Minerals Management Service                       30, II
Mines, Bureau of                                  30, VI
Minority Business Development Agency              15, XIV
Miscellaneous Agencies                            1, IV
Monetary Offices                                  31, I
National Aeronautics and Space Administration     5, LIX; 14, V
  Federal Acquisition Regulation                  48, 18
National Agricultural Library                     7, XLI
National Agricultural Statistics Service          7, XXXVI
National Archives and Records Administration      5, LXVI; 36, XII
  Information Security Oversight Office           32, XX
National Bureau of Standards                      15, II
National Capital Planning Commission              1, IV
National Commission for Employment Policy         1, IV
National Commission on Libraries and Information  45, XVII
     Science
National and Community Service, Corporation for   45, XXV
National Council on Disability                    34, XII
National Credit Union Administration              12, VII
National Drug Control Policy, Office of           21, III
National Foundation on the Arts and the           45, XI
     Humanities
National Highway Traffic Safety Administration    23, II, III; 49, V
National Indian Gaming Commission                 25, III
National Institute for Literacy                   34, XI
National Institute of Standards and Technology    15, II
National Labor Relations Board                    5, LXI; 29, I
National Marine Fisheries Service                 50, II, IV
National Mediation Board                          29, X
National Oceanic and Atmospheric Administration   15, IX; 50, II, III, IV, 
                                                  VI
National Park Service                             36, I
National Railroad Adjustment Board                29, III
National Railroad Passenger Corporation (AMTRAK)  49, VII
National Science Foundation                       5, XLIII; 45, VI
  Federal Acquisition Regulation                  48, 25
National Security Council                         32, XXI
National Security Council and Office of Science   47, II
     and Technology Policy
National Telecommunications and Information       15, XXIII; 47, III
     Administration
National Transportation Safety Board              49, VIII
National Weather Service                          15, IX
Natural Resources Conservation Service            7, VI
Navajo and Hopi Indian Relocation, Office of      25, IV
Navy Department                                   32, VI
  Federal Acquisition Regulation                  48, 52
Neighborhood Reinvestment Corporation             24, XXV
Northeast Dairy Compact Commission                7, XIII
Nuclear Regulatory Commission                     5, XLVIII; 10, I
  Federal Acquisition Regulation                  48, 20
Occupational Safety and Health Administration     29, XVII
Occupational Safety and Health Review Commission  29, XX
Offices of Independent Counsel                    28, VI
Operations Office                                 7, XXVIII
Overseas Private Investment Corporation           5, XXXIII; 22, VII
Panama Canal Commission                           48, 35
Panama Canal Regulations                          35, I
Patent and Trademark Office                       37, I
Payment From a Non-Federal Source for Travel      41, 304
     Expenses
Payment of Expenses Connected With the Death of   41, 303
     Certain Employees
Peace Corps                                       22, III
Pennsylvania Avenue Development Corporation       36, IX
Pension and Welfare Benefits Administration       29, XXV
Pension Benefit Guaranty Corporation              29, XL
Personnel Management, Office of                   5, I, XXXV; 45, VIII
  Federal Acquisition Regulation                  48, 17
  Federal Employees Group Life Insurance Federal  48, 21
     Acquisition Regulation
[[Page 1048]]

  Federal Employees Health Benefits Acquisition   48, 16
       Regulation
Postal Rate Commission                            5, XLVI; 39, III
Postal Service, United States                     5, LX; 39, I
Postsecondary Education, Office of                34, VI
President's Commission on White House             1, IV
     Fellowships
Presidential Commission on the Assignment of      32, XXIX
     Women in the Armed Forces
Presidential Documents                            3
Prisons, Bureau of                                28, V
Productivity, Technology and Innovation,          37, IV
     Assistant Secretary
Public Contracts, Department of Labor             41, 50
Public and Indian Housing, Office of Assistant    24, IX
     Secretary for
Public Health Service                             42, I
Railroad Retirement Board                         20, II
Reclamation, Bureau of                            43, I
Refugee Resettlement, Office of                   45, IV
Regional Action Planning Commissions              13, V
Relocation Allowances                             41, 302
Research and Special Programs Administration      49, I
Rural Business-Cooperative Service                7, XVIII, XLII
Rural Development Administration                  7, XLII
Rural Housing Service                             7, XVIII, XXXV
Rural Telephone Bank                              7, XVI
Rural Utilities Service                           7, XVII, XVIII, XLII
Saint Lawrence Seaway Development Corporation     33, IV
Science and Technology Policy, Office of          32, XXIV
Science and Technology Policy, Office of, and     47, II
     National Security Council
Secret Service                                    31, IV
Securities and Exchange Commission                17, II
Selective Service System                          32, XVI
Small Business Administration                     13, I
Smithsonian Institution                           36, V
Social Security Administration                    20, III; 48, 23
Soldiers' and Airmen's Home, United States        5, XI
Special Counsel, Office of                        5, VIII
Special Education and Rehabilitative Services,    34, III
     Office of
State Department                                  22, I
  Federal Acquisition Regulation                  48, 6
Surface Mining and Reclamation Appeals, Board of  30, III
Surface Mining Reclamation and Enforcement,       30, VII
     Office of
Surface Transportation Board                      49, X
Susquehanna River Basin Commission                18, VIII
Technology Administration                         15, XI
Technology Policy, Assistant Secretary for        37, IV
Technology, Under Secretary for                   37, V
Tennessee Valley Authority                        5, LXIX; 18, XIII
Thrift Depositor Protection Oversight Board       12, XV
Thrift Supervision Office, Department of the      12, V
     Treasury
Trade Representative, United States, Office of    15, XX
Transportation, Department of                     5, L
  Coast Guard                                     33, I; 46, I; 49, IV
  Commercial Space Transportation                 14, III
  Contract Appeals, Board of                      48, 63
  Emergency Management and Assistance             44, IV
  Federal Acquisition Regulation                  48, 12
  Federal Aviation Administration                 14, I
  Federal Highway Administration                  23, I, II; 49, III
  Federal Railroad Administration                 49, II
  Federal Transit Administration                  49, VI
  Maritime Administration                         46, II
  National Highway Traffic Safety Administration  23, II, III; 49, V
  Research and Special Programs Administration    49, I
  Saint Lawrence Seaway Development Corporation   33, IV
  Secretary of Transportation, Office of          14, II; 49, Subtitle A
  Surface Transportation Board                    49, X

[[Page 1049]]

Transportation, Office of                         7, XXXIII
Travel Allowances                                 41, 301
Treasury Department                               5, XXI; 17, IV
  Alcohol, Tobacco and Firearms, Bureau of        27, I
  Community Development Financial Institutions    12, XVIII
       Fund
  Comptroller of the Currency                     12, I
  Customs Service, United States                  19, I
  Engraving and Printing, Bureau of               31, VI
  Federal Acquisition Regulation                  48, 10
  Federal Law Enforcement Training Center         31, VII
  Fiscal Service                                  31, II
  Foreign Assets Control, Office of               31, V
  Internal Revenue Service                        26, I
  International Investment, Office of             31, VIII
  Monetary Offices                                31, I
  Secret Service                                  31, IV
  Secretary of the Treasury, Office of            31, Subtitle A
  Thrift Supervision, Office of                   12, V
Truman, Harry S. Scholarship Foundation           45, XVIII
United States and Canada, International Joint     22, IV
     Commission
United States and Mexico, International Boundary  22, XI
     and Water Commission, United States Section
United States Enrichment Corporation              10, XI
Utah Reclamation Mitigation and Conservation      43, III
     Commission
Veterans Affairs Department                       38, I
  Federal Acquisition Regulation                  48, 8
Veterans' Employment and Training, Office of the  41, 61; 20, IX
     Assistant Secretary for
Vice President of the United States, Office of    32, XXVIII
Vocational and Adult Education, Office of         34, IV
Wage and Hour Division                            29, V
Water Resources Council                           18, VI
Workers' Compensation Programs, Office of         20, I
World Agricultural Outlook Board                  7, XXXVIII

[[Page 1051]]



List of CFR Sections Affected



All changes in this volume of the Code of Federal Regulations which were 
made by documents published in the Federal Register since January 1, 
1986, are enumerated in the following list. Entries indicate the nature 
of the changes effected. Page numbers refer to Federal Register pages. 
The user should consult the entries for chapters and parts as well as 
sections for revisions.

For the period before January 1, 1986, see the ``List of Sections 
Affected, 1949-1963 and 1964-1972, 1973-1985,'' published in seven 
separate volumes.

                                  1986

49 CFR
                                                                   51 FR
                                                                    Page
Chapter I
106  Authority citation revised..............................5969, 34986
106  Appendix A amended......................................5969, 34986
107  Authority citation revised..............................5969, 34986
107.1--107.123 (Subpart B) Appendix A amended......................34986
107.105  (d) removed...............................................34986
107.303  Amended...................................................34986
107.309  (a) and (b)(1) amended....................................34986
107.339  Amended...................................................34987
171  Authority citation revised......................23078, 42176, 44791
171.7  (d)(4)(iii) and (23) revised.................................5970
    (d)(21) revised................................................34987
    (d)(27) revised................................................44791
171.8  Amended........................................5970, 23078, 42176
    Effective date deferred to 3-3-87..............................33900
    Effective date deferred........................................46672
171.11  (d)(1)(i) revised..........................................42177
    (d)(9) added...................................................44791
    Effective date deferred........................................46672
171.12a  (c) revised...............................................23075
    (a)(3)(i) revised..............................................42177
    Effective date deferred........................................46672
171.15  (b) amended................................................34987
171.17  (a) amended................................................34987
172  Authority citation revised......................23078, 25639, 42177
172.101  Table amended................................5970, 34987, 41633
    (b) and (c)(9) revised.........................................42177
    Table amended; Appendix added..................................42177
    Effective date deferred........................................46672
172.102  (a)(1) added..............................................25639
    (e) revised....................................................42195
    Effective date deferred........................................46672
172.202  (e) revised................................................5970
172.203  (h) revised................................................5970
    (c) revised....................................................42195
    Effective date deferred........................................46672
172.324  Revised...................................................42195
    Effective date deferred........................................46672
172.328  (c) introductory text revised..............................5970
172.334  (c) revised...............................................23078
    Effective date deferred to 3-3-87..............................33900
172.502  (a) introductory text, (b) and (c) introductory text 
        revised.....................................................5970
172.504  (a), (b), and (c) revised; Tables 1 and 2 amended..........5971
    Table 2 amended................................................23078
    Effective date deferred to 3-3-87..............................33900
172.507  Revised....................................................5971
172.510  (d) revised................................................5971
    (c)(1) removed; (c) (2) and (3) redesignated as (c) (1) and 
(2) and revised....................................................23078
    Effective date deferred to 3-3-87..............................33900

[[Page 1052]]

172.512  (a)(2) revised.............................................5971
172.525  (a) revised...............................................23079
    Effective date deferred to 3-3-87..............................33900
    (b) amended....................................................34987
172  Appendix B amended............................................23079
    Appendix B effective date deferred to 3-3-87...................33900
173.3a  (b)(1) corrected............................................3788
173.5a  Added.......................................................5971
173.6  (b)(7) amended...............................................5974
173.12  (b) revised.................................................5971
173.25  (c) added...................................................5971
173.31  (b)(4) removed..............................................5972
173.32  (b)(3) removed; (b)(4) redesignated as (b)(3)...............5972
173.33  (f)(5) amended..............................................5974
173.34  (c)(3) amended; (g)(4)(ii) revised..........................5972
173.112  (a)(2) revised.............................................5972
173.114a  (h)(3) removed; (i) redesignated as (j); new (i) added 
                                                                    5972
173.115  (d)(2) revised.............................................5972
173.118a  (b) (5) and (6) amended; (b)(7) added.....................5972
173.119  (m) (10), (11), and (12) amended...........................5974
173.120  (c) revised................................................5972
173.123  (a)(6) amended.............................................5974
173.131  (a) introductory text revised..............................5972
173.134  (a)(6) amended.............................................5974
173.135  (a)(9) amended.............................................5974
173.136  (a)(8) amended.............................................5974
173.141  (a)(8) amended.............................................5974
173.145  (a)(7) amended.............................................5974
173.148  (a)(5) amended.............................................5974
173.154  (a) (4) and (18) amended...................................5974
173.190  (b)(4) amended.............................................5974
173.206  (c)(3) amended.............................................5974
173.224  (a)(4) amended.............................................5974
173.245  (a)(38) revised............................................5972
    (a) (29), (30), and (31) amended................................5974
173.247  (a)(12) amended............................................5974
173.247a  (a)(3) amended............................................5974
173.248  (a)(6) amended.............................................5974
173.249  (a)(6) amended.............................................5974
173.252  (a)(4) amended.............................................5974
173.253  (a)(6) amended.............................................5974
173.254  (a)(5) amended.............................................5974
173.255  (a)(5) amended.............................................5974
173.260  (a)(3) amended; (f) removed................................5972
173.262  (b)(3) amended............................................34987
173.263  (a)(10) amended............................................5974
173.264  (a)(14) and (b)(3) amended.................................5974
173.266  (e) amended................................................5974
    (f)(1) amended.................................................34987
173.267  (a)(7) amended.............................................5974
173.268  (b)(3) amended.............................................5974
173.271  (a)(8) introductory text and (iv) amended..................5974
173.272  (i)(18) revised............................................5972
    (i)(21) amended.................................................5974
173.273  (a)(5) amended.............................................5974
173.274  (a)(4) amended.............................................5974
173.276  (a)(6) amended.............................................5974
173.277  (a)(9) amended.............................................5974
173.280  (a)(8) amended.............................................5974
173.287  (b)(8) amended.............................................5974
173.289  (a)(4) amended.............................................5974
173.292  (a)(2) amended.............................................5974
173.294  (a)(3) amended.............................................5974
173.295  (a)(9) amended.............................................5974
173.296  (a)(2) amended.............................................5974
173.297  (a)(1) amended.............................................5974
173.304  (a)(2) table amended; (a)(3) revised.......................5973
173.306  (d)(1) revised.............................................5973
173.315  (a)(1) table Note 2 amended; (m)(7) revised................5973
    (i)(13) amended.................................................5974
173.346  (a)(10) revised............................................5973
    (a)(12) amended.................................................5974
173.347  (a)(3) amended.............................................5974
173.348  (a)(1) amended.............................................5974
173.352  (a)(5) amended.............................................5974
173.353  (e) amended................................................5974
173.354  Note 1 amended.............................................5974
173.358  (a)(14) amended............................................5974
173.359  (a)(16) amended............................................5974
173.366  (a)(3) removed.............................................5973
173.369  (a)(14) amended............................................5974
173.373  (a)(6) amended.............................................5974
173.415  (c) revised...............................................34987
173.417  (b)(2)(ii) Table 5 footnote 8 revised; (b)(5) amended......5973
173.420  Added.....................................................41633
    (a)(2) revised.................................................46675
173.421-1  Heading, (a), and (b) introductory text revised..........5973
173.427  Introductory text, (c), and (d) revised; (e) added.........5973
173.465  (d)(2) amended.............................................5973
174  Authority citation revised....................................23079
174.25  (a)(2) table amended; (c) revised..........................23079

[[Page 1053]]

    Effective date deferred to 3-3-87..............................33900
174.61  (b) revised.................................................5974
174.81  (f) table amended...........................................5974
174.93  Revised....................................................23079
    Effective date deferred to 3-3-87..............................33900
174.101  (n) introductory text and (o) introductory text revised 
                                                                    5974
174.750  (b) amended...............................................34987
175  Authority citation revised....................................44791
175.10  (a)(2)(ii) revised..........................................4369
    (a)(4) introductory text and (15) revised......................44791
175.20  Amended....................................................34987
175.30  (e)(1) revised..............................................5974
    (e)(1)(ii) amended; (e)(1)(iii) added..........................44791
176.5  (c) removed..................................................5974
176.15  (b) removed.................................................5974
176.18  (a)(4) and (b) amended......................................5974
176.48  (c) amended.................................................5974
176.96  Revised.....................................................5974
176.135  (c) amended................................................5974
176.163  (c) removed................................................5974
176.410  (e)(2) revised.............................................5974
177.825  (b)(1)(ii) revised.........................................5975
177.835  (c)(3) amended.............................................5975
177.837  (e) amended................................................5975
177.839  (d) amended................................................5975
177.840  (d) and (f) amended........................................5975
177.841  (d) and (e) amended........................................5975
177.848  (f) table amended..........................................5975
177.854  (f) (1) and (2) amended....................................5975
177.859  (b) amended................................................5975
178.16-19  (c)(2) amended..........................................34987
178.45-17  (e) amended.............................................34987
178.50-19  Revised..................................................5975
178.51-19  (c)(5) revised; (c)(6) added.............................5975
178.61-20  (a)(2), (b), and (c) revised.............................5975
178.65-14  (d) amended.............................................34987
178.92-12  (a) introductory text revised............................5976
178.98-9  (a)(1) revised............................................5976
178.99-9  (a)(1) revised............................................5976
178.100-9  (a)(1) revised...........................................5976
178.102-4  (a) introductory text revised............................5976
178.131-9  (a)(1) revised...........................................5976
178.132-9  (a)(1) revised...........................................5976
178.150-3  (a)(2) revised...........................................5976
178.205-16  (a) revised.............................................5976
178.209-8  (a)(2) and Note 1 revised................................5976
178.337-1  (d) amended..............................................5977
178.337-10  (d) amended.............................................5977
178.337-13  (b) amended.............................................5977
178.337-17  (a) amended.............................................5976
    (b) amended.....................................................5977
178.338-3  (b) amended.............................................34987
178.338-18  (a) and (b) amended.....................................5976
178.340-10  (b) amended.............................................5977

                                  1987

49 CFR
                                                                   52 FR
                                                                    Page
Chapter I
107.101--107.123 (Subpart B)  Appendix A amended............13037, 36671
172.101  Table amended; appendix effective date suspended in part 
                                                                   41303
107.315  (c) revised...............................................36671
171  Authority citation revised.............................29527, 36671
171.7  (d) (1), (2), (3) (ii), (iii), (iv), and (ix) revised; 
        (d)(3) (x), (xi), (xii), and (5)(xxxiv) added..............13037
    (c) (21) and (31) amended......................................36671
171.8  Amended.......................................13037, 24474, 36671
    Amended; eff. 2-1-88...........................................29527
171.11  (d)(1)(i) correctly revised.................................4825
171.12  (a) amended................................................13037
171.12a  (a)(3) correctly revised...................................4825
171.15  (c) Note added..............................................8592
171.17  Removed.....................................................8592
172  Authority citation revised....................................36671
172.101  (c) corrected; Appendix correctly revised..................4825
    Table amended...........................................13038, 36671
172.102  (e) correctly revised......................................4842
    Table amended..................................................36671
172.101--172.102 (Subpart B)  Appendix A amended...................36671
172.202  (a)(4) and (c)(1) revised.................................13038
172.203  (c) correctly revised......................................4842
172.324  Correctly revised..........................................4843
172.326  (d)(1) added; eff. 2-1-88.................................29527
172.328  (e) revised; eff. 2-1-88..................................29527

[[Page 1054]]

172.331  Added; eff. 2-1-88........................................29527
172.332  (a) and (c)(1) revised; eff. 2-1-88.......................29527
172.334  (a) and (b) revised; (g) added; eff. 2-1-88...............29528
172.336  (c) (4) and (5) revised...................................13038
    (b) introductory text revised; eff. 2-1-88.....................29528
172.338  Revised; eff. 2-1-88......................................29528
172.400  (c) amended...............................................36671
172.504  Table 2 footnote 8 revised................................13038
172.510  (e) added; eff. 2-1-88....................................29528
    (b) removed....................................................36671
172.512  (a)(1) amended............................................36671
172.519  (b) (2) and (4) revised; eff. 5-18-88.....................13038
173  Authority citation revised.......................8592, 25341, 36672
173.4  (b) amended.................................................15949
173.11  (b)(4) revised.............................................13038
173.12  (b)(2) revised.............................................13038
173.25  (c) introductory text revised..............................13039
173.29  Heading revised; (e) added; eff. 2-1-88....................29528
173.31  (d)(6) Table 2 amended.....................................13039
173.33  (d)(13) amended............................................13039
173.34  (e)(8) amended.............................................13039
    (e)(9) note 1 corrected........................................36672
173.51  (g) revised................................................13039
173.57  (b) removed................................................13039
173.58  (b) removed................................................13039
173.81  Heading and (b) revised....................................13039
173.86  (a)(2) revised; (h) and (i) added..........................13039
173.87  Amended....................................................13039
173.93  (a)(2) added...............................................13039
173.104  Heading and (c) revised...................................13039
173.115  (b)(2)(ii) corrected......................................36672
173.118a  (b)(6) revised............................................8592
173.122  (a)(4) removed............................................13039
173.164  (a)(2) revised............................................13040
173.197a  Revised..................................................13040
173.220  (a) introductory text revised; (a)(3) added...............13040
173.245a  (a) table footnote 2 revised.............................13040
173.253  (a) (7) and (8) revised...................................13040
(a)(2) corrected...................................................36672
173.262  (b)(4) amended............................................13040
173.266  (f)(2) amended............................................13040
173.271  (a)(7), (8)(iv) and (9) revised...........................13040
    (a) (7) and (9) corrected......................................36672
173.272  (i)(2) corrected..........................................36672
173.277  (d)(1) removed............................................13040
173.294  Heading, (a) (2) and (3) and (b) revised..................13041
    (a) introductory text and (3) corrected........................36672
173.301  (k)(1) revised............................................13041
173.302  (a)(5)(iv) revised........................................13041
173.304  (a)(2) table amended......................................13041
    (a)(4) introductory text corrected.............................36672
173.314  (c) table Note 6 amended..................................13041
173.315  (c) introductory text revised.............................13041
173.316  (c)(2) table revised......................................13041
173.318  (b) and (f) (2) and (3) revised...........................13041
173.320  Revised...................................................13043
173.386  (d) corrected.............................................36672
173.420  (a)(1) revised.............................................7582
    (a)(2) revised.................................................25341
173.421-1  (b)(2) amended..........................................15949
    (a) corrected..................................................36672
173.421-2  (d) amended.............................................15949
173.427  (a) corrected.............................................36672
173.965  Added.....................................................13043
174  Authority citation revised.....................................8592
174.45  Revised.....................................................8592
175  Authority citation revised..............................8592, 36672
175.31  (a) amended................................................36672
175.45  (d) removed.................................................8592
176  Authority citation revised.....................................8592
176.48  (b) revised.................................................8592
176.76  (g)(2) added...............................................13043
177  Authority citation revised..............................8592, 36672
177.807  Revised....................................................8592
177.814  (b) revised...............................................13043
177.824  (f) introductory text revised; (f)(2) amended.............13044
    (f) introductory text revised..................................36672
177.825  (b)(1) introductory text revised; (c) corrected...........36672
177.834  (k) removed...............................................13044
177.835  Parenthetical phrase following heading revised............13044
177.837  Parenthetical phrase following heading revised............13044
177.838  Parenthetical phrase following heading and (g) revised....13044

[[Page 1055]]

177.839  Parenthetical phrase following heading revised............13044
177.840  Parenthetical phrase following heading revised............13044
177.841  Parenthetical phrase following heading revised; (e) 
        amended....................................................13044
177.848  (b) revised...............................................13044
177.861  (a) corrected.............................................36672
178  Authority citation revised....................................36672
178.38-10  (b) amended.............................................13044
178.42-14  (a) introductory text revised...........................13044
178.46-4  (a) revised..............................................13044
178.46-5  (d) (1) and (2) footnote 1 revised.......................13045
178.46-6  (c) revised..............................................13045
178.46-8  (e) revised..............................................13045
178.51-10  (d) revised.............................................13045
178.53-9  (a) amended..............................................13045
178.54  Removed....................................................13045
178.54--178.54-23  Removed.........................................36672
178.61-10  (b) revised.............................................13045
178.135-8  (a)(1) revised..........................................36672
178.245-1  (a) introductory text revised...........................13045
178.337-1  (d) amended.............................................13046
178.337-13  (b) amended............................................13046
179  Authority citation revised....................................36672
179.3  (c) amended.................................................36672
179.4  (a) amended.................................................36672
179.100-13  (a) revised............................................13046
179.100-14  (a) (1) and (3) revised................................13046
179.102-2  (a)(3) revised..........................................13046
179.103-5  (b) (1) and (4) revised.................................13046
    (b)(1) corrected...............................................36672
179.200-7  (b), (c), (d), (e) and (f) table column headings 
        revised....................................................13046
179.200-13  Revised................................................13047
179.200-17  (a) (1), (6), and (7) and (b) (1) and (3) revised......13047
179.202-8  Revised.................................................13047
179.202-11  Revised................................................13047
179.202-16  Revised................................................13048
179.220-1  Revised.................................................13048
179.220-7  (b), (c), (d) and (e) table column headings revised.....13048
179.220-18  (a) (1) and (6) and (b) (1) and (3) revised............13048
179.220-19  (c) amended............................................13048
179.221-1  Table amended...........................................13049
179.222  Added.....................................................13049
179.222-1  Added...................................................13049
    Correctly designated...........................................36672
179.301  (a) table revised.........................................13049

                                  1988

49 CFR
                                                                   53 FR
                                                                    Page
Chapter I
107.101--107.123 (Subpart B)  Appendix A amended...................38273
171  Authority citation revised....................................16991
171.7  (c)(16) and (d)(4)(iii) and (16) revised; eff. 4-1-89.......36550
    (c) (7), (9), and (14) amended.................................38273
171.8  Amended.....................................................16991
172.101  Table corrected; CFR correction............................8846
    Table amended; eff. 1-2-89.....................................17160
    Table amended..................................................38273
172.101--172.102 (Subpart B)  Appendix A removed...................37577
172.200  (b) revised; eff. 1-2-89..................................17160
172.331  (d) amended...............................................38274
172.402  (g) removed...............................................38274
172.403  (d) added.................................................38274
173.3a  (d) removed................................................38274
173.10  (e) amended................................................38274
173.22  (d) removed................................................16992
173.247  (a)(2) amended............................................38274
173.315  (a)(1) table amended......................................38274
173.325--173.388 (Subpart H)  Heading amended......................38274
173.403  (s) amended...............................................38274
173.417  (a)(8) and (b)(5) text revised; (b)(5) Table 6 amended; 
        eff. 4-1-89................................................36551
173.420  (a)(1) and (2)(i), (b) and (c) amended; eff. 4-1-89.......36551
173.435  Table amended.............................................38274
173.1080  Revised; eff. 1-2-89.....................................17160
174.24  (b) revised; eff. 1-2-89...................................17160
174.715  (b) amended...............................................38274
174.750  (a) amended...............................................38274
177.817  (d) revised; eff. 1-2-89..................................17160
177.825  (b)(1) revised............................................16991
    (f) added......................................................16992
178.44-12  Footnote 1 amended......................................38274
178.83-3  (b) amended..............................................38274
178.118-6  (a) table amended.......................................38275
178.121-1  (a) and (d) revised; eff. 4-1-89........................36551

[[Page 1056]]

178.121-2  (b) and (g) revised; eff. 4-1-89........................36551
178.121-3  Revised; eff. 4-1-89....................................36551
178.121-4  Revised; eff. 4-1-89....................................36551
178.121-5  Added; eff. 4-1-89......................................36552
178.121-6  Added; eff. 4-1-89......................................36552

                                  1989

49 CFR
                                                                   54 FR
                                                                    Page
Chapter I
107  Authority citation revised....................................22899
    Meeting, effective date extended to 2-12-90....................38233
107.319  (c) amended; (d) added....................................22899
107.501--107.504 (Subpart F)  Added; eff. 12-12-89.................25003
    Regulation at 54 FR 25003 and 38233 effective date delayed to 
6-12-90............................................................50382
107  Appendix A to Subpart B amended...............................40067
171  Technical correction..........................................28750
    Meeting; effective date extended to 2-12-90....................38233
171.2  (e) added; eff. 12-12-89....................................25004
    (e) regulation at 54 FR 25004 and 38233 effective date delayed 
to 6-12-90.........................................................50382
171.3  (b)(1) amended..............................................40068
171.7  (d)(27) revised...............................................954
    (c) (33) and (34), (d) (29), and (30) added; eff. 12-12-89.....25004
    (d)(4)(iv) added...............................................35652
    (d)(31) added; (c) (4), (5), (19), (d)(2), (7)(iv), (17) 
revised; eff. 11-15-89.............................................38793
    (c)(35) and (d)(32) added; eff. 11-24-89.......................39326
    (c)(35) and (d)(32) correctly designated.......................41447
    (d)(31) correctly designated...................................47987
    (e) regulation at 54 FR 25004 and 38233 effective date delayed 
to 6-12-90.........................................................50382
171.8  Amended; eff. 12-12-89......................................25004
    Amended; eff. 4-2-90...........................................27144
    Amended; eff. 11-15-89.........................................38793
    Amended........................................................40068
    Amended; eff. 11-24-89.........................................39326
    Amended; eff. 10-31-89.........................................39501
    (e) regulation at 54 FR 25004 and 38233 effective date delayed 
to 6-12-90.........................................................50382
171.11  (d)(10) added; eff. 4-2-90.................................27144
171.12  (b) amended; (b) (1) and (2) added; (d) revised; eff. 11-
        15-89......................................................38793
    (b) correctly revised..........................................47987
171.12a  (a)(7) added; eff. 4-2-90.................................27144
171.15  (a) revised; eff. 1-1-90...................................25812
171.16  (a) and (b) revised; Note added; eff. date 1-1-90..........25813
171.21  Added; eff. date 1-1-90....................................25813
172  Heading and authority citation revised........................27144
    Meeting; effective date extended to 2-12-90....................38233
172.101  Amended; eff. 11-15-89....................................38793
    Table amended..................................................40068
    Table corrected...............................................41448,
                                                            47987, 51031
172.101  Appendix revised..........................................34668
    Appendix amended; eff. 10-31-89................................39501
    Appendix amended...............................................49998
172.201  (d) added; eff. 4-2-90....................................27144
172.203  (h)(1)(i) and (2)(i) amended; eff. 12-12-89...............25004
    (i)(2) removed; (i)(3) redesignated as (i)(2); (k) revised; 
(m) added; eff. 4-2-90.............................................27144
    (k) corrected..................................................28750
    (c)(1) introductory text revised; eff. 10-31-89................39505
    (e) regulation at 54 FR 25004 and 38233 effective date delayed 
to 6-12-90.........................................................50382
172.301  (c) redesignated as (d); new (c) added; eff. 4-2-90.......27145
172.302  Removed; eff. 4-2-90......................................27145
172.324  (a) introductory text revised; eff. 10-31-89..............39505
172.504  (c) revised; eff. 11-15-89................................38794
172.600--172.604 (Subpart G)  Added; eff. 4-2-90...................27145
172.600  (c)(1) corrected..........................................28750
172.602  (c)(2) corrected..........................................28750
173  Heading corrected.............................................40068
    173  Meeting, effective date extended to 2-12-90...............38233
173.4  (b) amended.................................................14814
173.5  (a)(2) amended; eff. 11-15-89...............................38794

[[Page 1057]]

173.6  (c) amended.................................................40068
173.12  (f) added; eff. 4-2-90.....................................27146
173.22  (a)(2) introductory text revised; (b) removed; eff. 12-12-
        89.........................................................25005
    Regulation at 54 FR 25005 and 38233 effective date delayed to 
6-12-90............................................................50382
173.25  (c) introductory text revised; eff. 11-15-89...............38794
173.31  (a)(1) introductory text amended; (a)(11) added; (f)(1) 
        revised.....................................................8338
    Effective date extended.................................20856, 35878
    (a)(7) removed; (a) (5) and (6) revised; (c)(14) and (d)(10) 
added; eff. 11-15-89...............................................38794
    (a)(5) correctly revised.......................................47987
173.33  (a)(2) added...............................................18822
    Revised; eff. 12-12-89.........................................25005
    Regulation at 54 FR 25005 and 38233 effective date delayed to 
6-12-90............................................................50382
173.34  (e) table amended; eff. 11-15-89...........................38794
173.86  (b) revised; (j) added; eff. 11-24-89......................39326
173.88  (d) revised; eff. 11-24-89.................................39327
173.100  (t) and (x) removed; (r) and (u) revised; eff. 11-24-89 
                                                                   39327
173.104  (c) amended...............................................40068
173.115  (b)(1), (2) (i) and (ii) revised; eff. 11-15-89...........38794
173.118  (c) corrected.............................................10010
    (a) amended; 11-15-89..........................................38795
173.118a  (b)(7) amended; 11;15;89.................................38795
173.119  (m) (11) and (12) removed; (a) introductory text and 
        (17), (b) introductory text and (1), (e)(3), and (m)(10) 
        revised; eff. 12-12-89.....................................25006
    Regulation at 54 FR 25006 and 38233 effective date delayed to 
6-12-90............................................................50382
173.123  (a)(6) revised; eff. 12-12-89.............................25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.131  (a) introductory text and (2) revised; eff. 12-12-89......25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.134  (a)(6) revised; eff. 12-12-89.............................25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.135  (a)(9) revised; eff. 12-12-89.............................25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.136  (a)(8) revised; eff. 12-12-89.............................25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.141  (a)(8) revised; eff. 12-12-89.............................25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.145  (a)(7) revised; eff. 12-12-89.............................25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.148  (a)(5) revised; eff. 12-12-89.............................25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.154  (a)(4) revised; (a)(18) removed; eff. 12-12-89............25007
    Regulation at 54 FR 25007 and 38233 effective date delayed to 
6-12-90............................................................50382
173.182  Footnote 1 amended; 11-15-89..............................38795
173.190  (b)(4) revised; eff. 12-12-89.............................25008
    Regulation at 54 FR 25008 and 38233 effective date delayed to 
6-12-90............................................................50382
173.206  (c)(3) revised; eff. 12-12-89.............................25008
    Regulation at 54 FR 25008 and 38233 effective date delayed to 
6-12-90............................................................50382
173.224  (a)(4) revised; eff. 12-12-89.............................25008
    Regulation at 54 FR 25008 and 38233 effective date delayed to 
6-12-90............................................................50382

[[Page 1058]]

173.242  (b) amended...............................................40068
173.245  (a)(29) revised; (a) (30) and (31) removed; eff. 12-12-89
                                                                   25008
    Regulation at 54 FR 25008 and 38233 effective date delayed to 
6-12-90............................................................50382
173.247  (a)(12) revised; eff. 12-12-89............................25008
    (a) amended....................................................40069
    Regulation at 54 FR 25008 and 38233 effective date delayed to 
6-12-90............................................................50382
173.247a  (a)(3) revised; eff. 12-12-89............................25008
    Regulation at 54 FR 25008 and 38233 effective date delayed to 
6-12-90............................................................50382
173.248  (a)(6) revised; eff. 12-12-89.............................25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
173.249  (a) (1) and (6) revised; eff. 12-12-89....................25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
    (a) amended....................................................40069
173.249a  (d)(1) revised; (d)(6) added; eff. 12-12-89..............25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
    (d)(3) revised; eff. 11-15-89..................................38795
    Amended........................................................40069
173.250  (b) revised; eff. 11-15-89................................38795
173.250a  (a) (1) and (2) revised; eff. 12-12-89...................25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
173.252  (a)(4) revised; eff. 12-12-89.............................25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
173.253  (a)(6) revised; eff. 12-12-89.............................25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
173.254  (a)(5) revised; eff. 12-12-89.............................25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
173.255  (a)(5) revised; eff. 12-12-89.............................25009
    Regulation at 54 FR 25009 and 38233 effective date delayed to 
6-12-90............................................................50382
173.257  (a)(4) revised; eff. 12-12-89.............................25010
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.262  (a)(11) and (b)(4) revised; eff. 12-12-89.................25010
    (b) (1), (2) and (3) amended; 11-15-89.........................38795
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.263  (a)(10) revised; eff. 12-12-89............................25010
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.264  (a)(14) Note 1 removed; (a)(14) and (b)(3) revised; eff. 
        12-12-89...................................................25010
    (b)(1) introductory text amended; eff. 11-15-89................38795
    (b)(1) introductory text correctly amended.....................47987
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.265  (b)(4) revised; eff. 12-12-89.............................25010
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.266  (f)(2) revised; eff. 12-12-89.............................25010
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.267  (a)(7) revised; eff. 12-12-89.............................25010
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.268  (b)(3) revised; eff. 12-12-89.............................25010
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382

[[Page 1059]]

173.271  (a)(8) revised; eff. 12-12-89.............................25010
    Regulation at 54 FR 25010 and 38233 effective date delayed to 
6-12-90............................................................50382
173.272  (i) (25) and (28) removed; (c) through (f) and (i)(21) 
        revised; eff. 12-12-89.....................................25011
    (b) designated as (a)(1); (b) reserved.........................40069
    Regulation at 54 FR 25011 and 38233 effective date delayed to 
6-12-90............................................................50382
173.273  (a)(5) and (b)(2) revised; eff. 12-12-89..................25011
    Regulation at 54 FR 25011 and 38233 effective date delayed to 
6-12-90............................................................50382
173.274  (a)(4) revised; eff. 12-12-89.............................25011
    Regulation at 54 FR 25011 and 38233 effective date delayed to 
6-12-90............................................................50382
173.276  (a)(6) revised; eff. 12-12-89.............................25011
    Regulation at 54 FR 25011 and 38233 effective date delayed to 
6-12-90............................................................50382
173.277  (a)(9) revised; eff. 12-12-89.............................25011
    Regulation at 54 FR 25011 and 38233 effective date delayed to 
6-12-90............................................................50382
173.280  (a)(8) revised; eff. 12-12-89.............................25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.287  (b)(8) revised; eff. 12-12-89.............................25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.289  (a) (1) and (4) revised; eff. 12-12-89....................25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.292  (a) (1) and (2) revised; eff. 12-12-89....................25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.294  (a)(3) revised; eff. 12-12-89.............................25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.295  (a)(9) revised; (a)(10) removed; eff. 12-12-89............25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.296  (a)(2) revised; eff. 12-12-89.............................25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.297  (a)(1) revised; eff. 12-12-89.............................25012
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.301  (d)(3), (l)(1) amended; (l) introductory text revised; 
        11-15-89...................................................38795
173.304  (b) and (a)(2) table amended; 11-15-89....................38795
    (b) corrected..................................................47987
173.306  (d)(2) amended............................................40069
173.314  (c) table amended; eff. 11-15-89..........................38796
173.315  (a) introductory text, table Note 4, (h)(4), (i)(1), and 
        (k)(5) revised; (a) table Note 17 amended; (n) and (o) 
        added; eff. 12-12-89.......................................25012
    (a)(1) table amended; eff. 11-15-89............................38796
    Regulation at 54 FR 25012 and 38233 effective date delayed to 
6-12-90............................................................50382
173.318  (b)(2)(i)(C) and (g)(3) added; (b)(2)(ii) amended; eff. 
        12-12-89...................................................25013
    Regulation at 54 FR 25013 and 38233 effective date delayed to 
6-12-90............................................................50382
173.346  (a)(12) revised; eff. 12-12-89............................25013
    Regulation at 54 FR 25013 and 38233 effective date delayed to 
6-12-90............................................................50382
173.347  (a)(3) revised; eff. 12-12-89.............................25013
    Regulation at 54 FR 25013 and 38233 effective date delayed to 
6-12-90............................................................50382
173.352  (a)(5) revised; eff. 12-12-89.............................25013

[[Page 1060]]

    Regulation at 54 FR 25013 and 38233 effective date delayed to 
6-12-90............................................................50382
173.353  (e) revised; eff. 12-12-89................................25013
    Regulation at 54 FR 25013 and 38233 effective date delayed to 
6-12-90............................................................50382
173.353a  (a) amended..............................................40069
173.354  (a)(5) revised; Note 1 and footnote 1 removed; eff. 12-
        12-89......................................................25014
    Regulation at 54 FR 25014 and 38233 effective date delayed to 
6-12-90............................................................50382
173.358  (a)(14) revised; eff. 12-12-89............................25014
    Regulation at 54 FR 25014 and 38233 effective date delayed to 
6-12-90............................................................50382
173.359  (a)(16) revised; eff. 12-12-89............................25014
    Regulation at 54 FR 25014 and 38233 effective date delayed to 
6-12-90............................................................50382
173.369  (a)(14) revised; eff. 12-12-89............................25014
    Regulation at 54 FR 25014 and 38233 effective date delayed to 
6-12-90............................................................50382
173.373  (a)(6) revised; eff. 12-12-89.............................25014
    Heading and introductory text amended..........................40069
    Regulation at 54 FR 25014 and 38233 effective date delayed to 
6-12-90............................................................50382
173.374  (a)(4) revised; eff. 12-12-89.............................25014
    Regulation at 54 FR 25014 and 38233 effective date delayed to 
6-12-90............................................................50382
173.386  Heading amended...........................................40068
173.403  (i) amended...............................................40069
173.417  (b)(1) Table 4 amended; eff. 11-15-89.....................38796
173.420  Revised...................................................35652
173.421-1  (b)(2) amended..........................................14814
173.421-2  (d) amended.............................................14814
173.425  (b)(8) revised; eff. 10-31-89.............................39506
174.104  (c), (d), and (f) amended.................................40069
174.510  Amended; eff. 11-15-89....................................38796
    Corrected......................................................47987
175.10  (a)(21) revised..............................................955
    (a) (5) and (7) revised; eff. 11-15-89.........................38796
175.45  (a) and (b) introductory text revised; (c) amended; eff. 
        date 1-1-90................................................25813
176  Technical correction..........................................28750
    Meeting; effective date extended to 2-12-90....................38233
    Authority citation revised; eff. 11-15-89......................38796
176.11  (a) introductory text revised; eff. 11-15-89...............38796
176.30  (a)(3)(i) added; eff. 4-2-90...............................27146
176.76  (b) amended; eff. 12-12-89.................................25014
    Regulation at 54 FR 25014 and 38233 effective date delayed to 
6-12-90............................................................50382
176.340  (a)(2) revised; eff. 11-15-89.............................38796
176.905  (k) introductory text revised; eff. 11-15-89..............38796
177  Meeting; effective date extended to 2-12-90...................38233
177.800  Revised; eff. 12-12-89....................................25015
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
177.801  Revised; eff. 12-12-89....................................25015
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
177.802  Revised; eff. 12-12-89....................................25015
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
177.814  Revised; eff. 12-12-89....................................25015
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
177.822  (b) amended; eff. 12-12-89................................25015
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
177.824  Revised; eff. 12-12-89....................................25015
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
177.835  (k) amended; eff. 12-12-89................................25015

[[Page 1061]]

    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
177.840  Heading and (f) revised; eff. 12-12-89....................25015
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
178  Meeting; effective date extended to 2-12-90...................38233
178.39-5  (a) revised; eff. 11-15-89...............................38797
178.51-15  (b) amended.............................................40069
178.115-6  (b) table amended.......................................40069
    Correctly designated and amended...............................51031
178.210-12  (a) amended............................................40069
178.224-1  (a)(1) table revised; eff. 11-15-89.....................38797
    (a)(1) correctly revised.......................................47987
178.224-2  (c) table revised; eff. 11-15-89........................38797
    (d) amended....................................................40069
178.251-7  (a) amended; eff. 11-15-89..............................38797
178.320  Added; eff. 12-12-89......................................25015
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337  Heading revised; eff. 12-12-89............................25015
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-1  (e) revised; eff. 12-12-89..............................25015
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-2  (c) revised; eff. 12-12-89..............................25015
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-3  Revised; eff. 12-12-89..................................25015
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-4  (b) amended; eff. 12-12-89..............................25017
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25017 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-6  (a) revised; eff. 12-12-89..............................25017
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25017 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-8  (a)(2) and (b) revised; eff. 12-12-89...................25017
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25017 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-9  Section and (a) headings, (b), and (d)(1) revised; eff. 
        12-12-89...................................................25017
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25017 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-11  Revised; eff. 12-12-89.................................25017
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25017 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-14  (b) revised; eff. 12-12-89.............................25018
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25016 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-15  Revised; eff. 12-12-89.................................25018
    Regulation at 54 FR 25016 and 38233 effective date delayed to 
6-12-90............................................................50382
178.337-18  (a) amended; eff. 12-12-89.............................25018
    Effective date extended to 2-12-90.............................38233

[[Page 1062]]

    Regulation at 54 FR 25016 and 38233 effective date delayed to 
6-12-90............................................................50382
178.338-3  Revised; eff. 12-12-89..................................25018
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25016 and 38233 effective date delayed to 
6-12-90............................................................50382
178.338-8  (b) revised; eff. 12-12-89..............................25019
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25019 and 38233 effective date delayed to 
6-12-90............................................................50382
178.338-17  Revised; eff. 12-12-89.................................25020
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25020 and 38233 effective date delayed to 
6-12-90............................................................50382
178.340--178.343  Removed; eff. 12-12-89...........................25020
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25020 and 38233 effective date delayed to 
6-12-90............................................................50382
178.340-8  (b) revised.............................................18822
178.341  Regulation at 54 FR 25020 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.342  Regulation at 54 FR 25020 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.343  Regulation at 54 FR 25020 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.345  Added; eff. 12-12-89......................................25020
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25020 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-1  Added; eff. 12-12-89....................................25021
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25020 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-2  Added; eff. 12-12-89....................................25021
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25021 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-3  Added; eff. 12-12-89....................................25021
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25021 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-4  Added; eff. 12-12-89....................................25022
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25022 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-5  Added; eff. 12-12-89....................................25022
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25022 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-6--178.345-8  Added; eff. 12-12-89.........................25023
    Effective date extended to 2-12-90.............................38233
178.345-6  Regulation at 54 FR 25023 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.345-7  Regulation at 54 FR 25023 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.345-8  Regulation at 54 FR 25023 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.345-9--178.345-10  Added; eff. 12-12-89........................25025
    Effective date extended to 2-12-90.............................38233
178.345-9  Regulation at 54 FR 25025 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.345-10  Regulation at 54 FR 25025 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.345-11--178.345-13  Added; eff. 12-12-89.......................25026
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25026 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-12  Regulation at 54 FR 25026 and 38233 effective date 
        delayed to 6-12-90.........................................50382

[[Page 1063]]

178.345-13  Regulation at 54 FR 25026 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.345-14  Added; eff. 12-12-89...................................25027
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25027 and 38233 effective date delayed to 
6-12-90............................................................50382
178.345-15  Added; eff. 12-12-89...................................25028
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25028 and 38233 effective date delayed to 
6-12-90............................................................50382
178.346  Added; eff. 12-12-89......................................25028
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25028 and 38233 effective date delayed to 
6-12-90............................................................50382
178.346-1  Added; eff. 12-12-89....................................25028
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25028 and 38233 effective date delayed to 
6-12-90............................................................50382
178.346-2  Added; eff. 12-12-89....................................25028
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25028 and 38233 effective date delayed to 
6-12-90............................................................50382
178.346-3--178.346-15  Added; eff. 12-12-89........................25029
    Effective date extended to 2-12-90.............................38233
178.346-3  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-4  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-5  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-6  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-7  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-8  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-9  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-10  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-11  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-12  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-13  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-14  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.346-15  Regulation at 54 FR 25029 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178-347  Added; eff. 12-12-89......................................25029
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25029 and 38233 effective date delayed to 
6-12-90............................................................50382
178.347-1  Added; eff. 12-12-89....................................25029
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25029 and 38233 effective date delayed to 
6-12-90............................................................50382
178.347-2--178.347-14  Added; eff. 12-12-89........................25030
    Effective date extended to 2-12-90.............................38233
178.347-2  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-3  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-5  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-6  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-7  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-8  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382

[[Page 1064]]

178.347-9  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-10  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-11  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-12  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-13  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-14  Regulation at 54 FR 25030 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.347-15  Added; eff. 12-12-89...................................25031
    Regulation at 54 FR 25031 and 38233 effective date delayed to 
6-12-90............................................................50382
    Effective date extended to 2-12-90.............................38233
178.348  Added; eff. 12-12-89......................................25031
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25031 and 38233 effective date delayed to 
6-12-90............................................................50382
178.348-1  Added; eff. 12-12-89....................................25031
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25031 and 38233 effective date delayed to 
6-12-90............................................................50382
178.348-2  Added; eff. 12-12-89....................................25031
    Table II corrected.............................................28750
    Effective date extended to 2-12-90.............................38233
    Regulation at 54 FR 25031 and 38233 effective date delayed to 
6-12-90............................................................50382
178.348-3--178.348-15  Added; eff. 12-12-89........................25032
    Effective date extended to 2-12-90.............................38233
178.348-3  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-4  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-5  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-6  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-7  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-8  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-9  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-10  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-11  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-12  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-13  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-14  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
178.348-15  Regulation at 54 FR 25032 and 38233 effective date 
        delayed to 6-12-90.........................................50382
179.14  Revised; eff. 11-15-89.....................................38797
179.100-13  (d) revised; eff. 11-15-89.............................38798
179.100-15  (c) revised; eff. 11-15-89.............................38798
179.100-23  (c) added; eff. 11-15-89...............................38798
179.105-1  (c)(1) amended; eff. 11-15-89...........................38799
179.105-2  (a), (b)(1) and (c)(1) amended; eff. 11-15-89...........38799
179.105-3  (a) amended; eff. 11-15-89..............................38799
179.105-6  Removed; eff. 11-15-89..................................38798
179.105-9  Removed; eff. 11-15-89..................................38798
179.106-1  (c) amended; eff. 11-15-89..............................38799
179.106-2  (a), (b)(1) and (c)(1) amended; eff. 11-15-89...........38799

[[Page 1065]]

179.106-3  (a), (b)(1) and (c)(1) amended; eff. 11-15-89...........38799
179.106-4  (a) and (b) amended; eff. 11-15-89......................38799
179.200-18  (b) revised; (c) added; eff. 11-15-89..................38798
179.201-1  (a) Table amended; eff. 11-15-89........................38798
179.203-1  (c) and (d) amended; eff. 11-15-89......................38798
    (c) amended....................................................47988
179.203-2  (a)(1) amended; eff. 11-15-89...........................38799
179.300-7  (a) revised; eff. 11-15-89..............................38798
180  Added; eff. 12-12-89..........................................25032
    Meeting; effective date extended to 2-12-90....................38233
    Regulation at 54 FR 25015 and 38233 effective date delayed to 
6-12-90............................................................50382

                                  1990

49 CFR
                                                                   55 FR
                                                                    Page
Chapter I
106  Authority citation revised....................................39978
106.5  (a) amended.................................................39978
106.9  Amended.....................................................39978
107.101  Introductory text amended.................................52465
107.101--107.123 (Subpart B)  Appendix A amended...................39978
107.103  (b)(1) amended............................................39978
    (a) amended....................................................52465
107.105  (a)(1) amended............................................39978
107.111  (b)(1) amended............................................39978
107.113  (a) amended...............................................52465
107.123  (a) amended...............................................39978
107.201  (c) amended...............................................52465
107.203  (b)(1) amended............................................39978
107.215  (b)(1) amended............................................39978
107.315  (c) amended...............................................39978
107.325  (a) and (b) amended.......................................39979
107.335  Amended...................................................39978
107.402  (a) amended...............................................39978
107.501--107.504 (Subpart F)  Regulation at 54 FR 25003 effective 
        date delayed to 9-1-90.....................................21035
    Regulation at 54 FR 25003 effective date delayed to 12-31-90 
                                                                   37028
107.501  Revised; eff. 12-31-90....................................37047
107.502  (e) removed; (a) through (d) redesignated as (b) through 
        (e); new (a) and (f) added; eff. 12-31-90..................37047
    (c) redesignated as (d) and amended; eff. 12-31-90.............39978
107.503  (a) introductory text, (a)(3), (4), (6), (b) and (c) 
        revised; eff. 12-31-90.....................................37047
107.504  Regulation at 54 FR 25003 effective date delayed to 12-
        31-90; (a) revised; (c) amended; (f) added; eff. 12-31-90 
                                                                   37048
107.601--107.603 (Subpart G)  Added (OMB numbers)..................52465
171--180 (Subchapter C)  Interpretative rule........................6758
171  Authority citation revised...............................874, 39978
171.2  Regulation at 54 FR 25004 effective date delayed to 9-1-90 
                                                                   21035
    Regulation at 54 FR 25004 effective date delayed to 12-31-90 
                                                                   37028
171.3  (e) removed; Notes 1 and 2 revised..........................52466
171.6  Added.......................................................52466
171.7  Regulation at 54 FR 25004 effective date delayed to 9-1-90 
                                                                   21035
    Regulation at 54 FR 25004 effective date delayed to 12-31-90 
                                                                   37028
    (b) amended....................................................39978
    Revised........................................................52466
171.8  Amended.......................................................424
    Regulation at 54 FR 27144 effective date delayed to 6-4-90; 
amended..............................................................874
    Regulation at 54 FR 27144 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 25004 effective date delayed to 9-1-90.....21035
    Regulation at 54 FR 27144 and 55 FR 874 effective date delayed 
to 12-31-90; amended; eff. 12-31-90................................33711
    Regulation at 54 FR 25004 effective date delayed to 12-31-90; 
amended; eff. 12-31-90.............................................37048
    Amended........................................................52470
171.10  Revised....................................................52472

[[Page 1066]]

171.11  Regulation at 54 FR 27144 effective date delayed to 6-4-90
                                                                     874
    Regulation at 54 FR 27144 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 27144 effective date delayed to 12-31-90; 
(d)(10) republished................................................33711
    (d)(1)(i)(C) amended...........................................46798
    (c) revised; (d)(4)(i) and (ii) removed; (d)(4)(iii) and (iv) 
redesignated as (d)(4)(i) and (ii); (d)(11) added..................52472
171.12  Revised....................................................52472
171.12a  Regulation at 54 FR 27144 effective date delayed to 6-4-
        90...........................................................874
    Regulation at 54 FR 27144 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 27144 effective date delayed to 12-31-90; 
(a)(7) republished.................................................33711
    Revised........................................................52473
171.14  Revised....................................................52473
171.16  (b) and Note amended.......................................39978
171.20  (b) amended................................................39978
172  Regulation at 54 FR 27144 effective date delayed to 12-31-90 
                                                                   33711
    Authority citation revised..............................39979, 52474
    Heading revised................................................52474
172.1--172.3 (Subpart B)  Heading revised..........................52474
172.101  Table amended; eff. 12-31-90..............................37048
    Table amended..................................................39979
    Appendix revised...............................................46798
    (a) through (j) revised; (k) and (l) added; Table revised......52474
172.102  Revised...................................................52582
172.201  Regulation at 54 FR 27144 effective date delayed to 6-4-
        90...........................................................874
    Regulation at 54 FR 27144 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 27144 effective date delayed to 12-31-90; 
(d) republished....................................................33711
    (a)(3) amended; (a)(4)(i) and (ii) removed.....................52589
172.202  (a) through (d) revised...................................52589
172.203  Regulation at 54 FR 27144 effective date delayed to 6-4-
        90; (k)(2), (4)(i), (ii), and (l) revised...............874, 875
    Regulation at 54 FR 27144 and 55 FR 875 effective date delayed 
to 9-17-90.........................................................20796
    Regulation at 54 FR 25004 effective date delayed to 9-1-90.....21035
    Regulation at 54 FR 27144 and 55 FR 875 effective date delayed 
to 12-31-90; (i)(2) and (l) removed; (i)(3) redesignated as 
(i)(2); (k)(1) introductory text, (2) introductory text, (3) 
introductory text, and (m) republished; (k)(4) revised; eff. 12-
31-90..............................................................33711
    Regulation at 54 FR 25004 effective date delayed to 12-31-90; 
(h)(1)(i) amended; eff.12-31-90....................................37048
    (c)(1)(iii) amended............................................46825
    (l) removed; (c)(2), (i)(2), (j), (k) and (m)(3) revised.......52589
172.301  Regulation at 54 FR 27145 effective date delayed to 6-4-
        90; (c) revised; (d)(3) added...........................874, 875
    Regulation at 54 FR 27145 and 55 FR 875 effective date delayed 
to 9-17-90.........................................................20796
    Regulation at 54 FR 27145 and 55 FR 875 effective date delayed 
to 12-31-90; (c) republished; (d)(3) revised; eff. 12-31-90.......33711, 
                                                                   33712
    Revised........................................................52590
172.302  Regulation at 54 FR 27145 effective date delayed to 6-4-
        90...........................................................874
    Regulation at 54 FR 27145 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 27145 effective date delayed to 12-31-90; 
removal republished.........................................33711, 33712
    Added..........................................................52591
172.303  Added.....................................................52591
172.306  Removed...................................................52591
172.308  Revised...................................................52591
172.312  Revised...................................................52591

[[Page 1067]]

172.313  Added.....................................................52592
172.316  (a) and (c) revised.......................................52592
172.320  Added.....................................................52592
172.324  (a)(3) amended............................................46825
    Heading and introductory text revised..........................52592
172.326  Revised...................................................52592
172.328  Revised...................................................52592
172.330  Revised...................................................52593
172.331  (d) amended...............................................39981
    Revised........................................................52593
172.332  (b)(1), (3), (c)(1), (2), (3) and (5) revised.............52593
172.334  (a) revised; (b)(1) and (3) amended.......................52593
172.336  (b) introductory text amended; (b)(1), (c)(2) and (3) 
        revised....................................................52593
172.400  Revised...................................................52593
172.400a  Added....................................................52594
172.401  (a) introductory text amended; (d) removed................52594
172.402  Revised...................................................52594
172.403  (e) removed...............................................52594
172.405  Revised...................................................52594
172.406  Revised...................................................52594
172.407  (d)(1) and (3) amended....................................39981
    Revised........................................................52595
172.411  Revised...................................................52595
172.415  Revised...................................................52596
172.416  Revised...................................................52596
172.417  Revised...................................................52596
172.419  Revised...................................................52597
172.420  Revised...................................................52597
172.422  Revised...................................................52597
172.423  Revised...................................................52597
172.426  Revised...................................................52597
172.427  Revised...................................................52598
172.430  Revised...................................................52598
172.431  Added.....................................................52598
172.432  Revised...................................................52598
172.436  Revised...................................................52598
172.438  Revised...................................................52598
172.440  Revised...................................................52598
172.442  Revised...................................................52599
172.444  Removed...................................................52599
172.446  Added.....................................................52599
172.448  Revised...................................................52599
172.500  Revised...................................................52599
172.502  Revised...................................................52599
172.504  Revised...................................................52600
172.505  Revised..............................................875, 52601
    Regulation at 55 FR 875 effective date delayed to 9-17-90......20796
    Regulation at 55 FR 875 effective date delayed to 12-31-90; 
revised; eff. 12-31-90......................................33711, 33712
172.508  (a) revised...............................................52601
172.510  (a) amended...............................................39981
    (a) revised....................................................52601
172.512  (b) introductory text, (1) and (2) amended................52601
172.514  Revised...................................................52601
172.516  (c) introductory text revised; (c)(7) added...............52601
172.519  Revised...................................................52601
172.522  Revised...................................................52602
172.523  Revised...................................................52602
172.524  Revised...................................................52602
172.525  Redesignated as 172.526; new 172.525 added................52603
172.526  Redesignated from 172.525.................................52603
172.528  Revised...................................................52603
172.530  Revised...................................................52603
172.532  Revised...................................................52603
172.536  Removed...................................................52603
172.540  Revised...................................................52603
172.542  Revised...................................................52603
172.544  Revised...................................................52604
172.546  Revised...................................................52604
172.547  Added.....................................................52604
172.548  Revised...................................................52604
172.550  Revised...................................................52604
172.552  Revised...................................................52605
172.553  Added.....................................................52605
172.554  Revised...................................................52605
172.556  Revised...................................................52605
172.558  Revised...................................................52605
172.560  Added.....................................................52605
172.600--172.604 (Subpart G)  Regulation at 54 FR 27145 effective 
        date delayed to 6-4-90.......................................874
    Regulation at 54 FR 27145 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 27145 effective date delayed to 12-31-90 
                                                                   33711
172.600  (a), (b), (c) introductory text, (1), and (d) 
        republished; (c)(2) revised; eff. 12-31-90.................33712
172.602  Regulation at 54 FR 27145 effective date delayed to 6-4-
        90; (a)(1), (5), (b)(3)(ii) and (iii), and (c)(1) revised 
                                                                874, 875
    Regulation at 55 FR 875 effective date delayed to 9-17-90......20796

[[Page 1068]]

    Regulation at 55 FR 875 effective date delayed to 12-31-90; 
republished; eff. 12-31-90..................................33711, 33712
172.604  Regulation at 55 FR 875 effective date delayed to 6-4-90; 
        (a)(2) revised..........................................874, 875
    Regulation at 54 FR 27146 effective date delayed to 9-17-90....20796
    Regulation at 55 FR 875 effective date delayed to 12-31-90; 
(a) introductory text, (3), and (b) republished; (a)(1) and (2) 
revised; eff. 12-31-90......................................33711, 33713
172  Appendix B removed............................................52606
173  Authority citation revised...............................875, 27642
173.1  (d) added...................................................52606
173.2  Revised.....................................................52606
173.2a  Added......................................................52606
173.3  Revised.....................................................52607
173.4  (a)(1)(iii) revised...........................................875
    Regulation at 55 FR 875 effective date delayed to 9-17-90......20796
    Regulation at 55 FR 875 effective date delayed to 12-31-90; 
(a)(1)(iii) republished.....................................33711, 33713
    Revised........................................................52608
173.5  (a)(2), (3) and (b) amended.................................52608
173.6  Removed.....................................................52608
173.7  (b) and (d) amended.........................................52608
173.9  Revised.....................................................52608
173.10  (a), (b) and (e) amended...................................52608
173.12  Regulation at 54 FR 27146 effective date delayed to 6-4-90
                                                                     874
    Regulation at 54 FR 27146 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 27146 effective date delayed to 12-31-90; 
(f) republished.............................................33711, 33713
    (e) amended....................................................39981
    Revised........................................................52609
173.21  Revised....................................................52609
173.22  Regulation at 54 FR 25005 effective date delayed to 9-1-90
                                                                   21035
    Regulation at 54 FR 25004 effective date delayed to 12-31-90; 
(a)(2) introductory text; eff. 12-31-90............................37048
    (a)(4) added...................................................52610
173.22a  (b) amended...............................................39981
173.23  (a) revised................................................52610
173.24  Revised....................................................52610
173.24a  Added.....................................................52611
173.24b  Added.....................................................52612
173.25  (a)(3) revised; (a)(5) added; (b) removed..................52612
173.26  Revised....................................................52612
173.27  Revised....................................................52612
173.28  (m)(3)(ii) amended.........................................39981
    Revised........................................................52614
173.29  Revised....................................................52614
173.31  (a)(1) amended; (a)(11) revised..............................424
    (a)(5) amended.................................................27642
    (a)(11)(vi) and (ix) revised...................................39001
    (a)(1) revised; (a)(12) through (17) added; (c) Table 1 
footnote v removed.................................................52615
173.32  (a)(6) and (q) through (s) added...........................52615
173.32c  (a), (b), (g)(2) and (o) revised; (p) added...............52616
173.32d  Removed...................................................52616
173.33  Regulation at 54 FR 25005 effective date delayed to 9-1-
        90; (c)(4) and (d)(1) amended.......................21035, 21038
    Regulation at 54 FR 25005 and 55 FR 21037 effective date 
delayed to 12-31-90; (d)(3) amended; (a)(3), (b)(3), (4), (c)(1) 
introductory text, (vi), (2) through (5), (d)(1), (2) and (e) 
revised; eff. 12-31-90.............................................37048
    (b)(2)(ii) and (iii) removed; (f) and (g) added................52616
173.34  (e)(1)(iv) amended.........................................39981
173.40  Added......................................................52616
173.50--173.63 (Subpart C)  Revised................................52617
173.115--173.156 (Subpart D)  Revised..............................52634
173.119  Regulation at 54 FR 25006 effective date delayed to 9-1-
        90.........................................................21035

[[Page 1069]]

    Regulation at 54 FR 25006 effective date delayed to 12-31-90; 
(a)(17)(i), (ii), (e)(3)(ii), (iii), (m)(10)(iv) and (v) revised; 
eff. 12-31-90......................................................37049
173.123  Regulation at 54 FR 25006 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25006 effective date delayed to 12-31-90 
                                                                   37028
173.131  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25007 effective date delayed to 12-31-90; 
(a)(2) revised; eff. 12-30-90......................................37049
173.134  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25007 effective date delayed to 12-31-90 
                                                                   37028
173.135  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25007 effective date delayed to 12-31-90; 
(a)(9)(iii), (iv) and (v) revised; eff. 12-30-90...................37050
173.136  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25007 effective date delayed to 12-31-90; 
(a)(8) revised; eff. 12-31-90......................................37050
173.141  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25007 effective date delayed to 12-31-90; 
(a)(8) revised; eff. 12-31-90......................................37050
173.145  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25007 effective date delayed to 12-31-90; 
(a)(7)(ii) revised; eff. 12-31-90..................................37050
173.148  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25005 effective date delayed to 12-31-90 
                                                                   37028
173.154  Regulation at 54 FR 25007 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25007 effective date delayed to 12-31-90; 
(a)(17) amended; (a)(4)(iii) through (vi) redesignated as 
(a)(4)(ii) through (v); (a)(4)(i)(B) and (C), new (a)(4)(ii) and 
(v) revised; eff. 12-31-90.........................................37050
173.158--173.230 (Subpart E)  Revised..............................52643
173.190  Regulation at 54 FR 25008 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25008 effective date delayed to 12-31-90; 
(b)(4)(iv) revised; eff. 12-31-90..................................37050
173.206  Regulation at 54 FR 25008 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25008 effective date delayed to 12-31-90; 
(c)(3)(v) revised; eff. 12-31-90...................................37050
173.217  Heading and (a) introductory text amended.................39981
173.224  Regulation at 54 FR 25008 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25008 effective date delayed to 12-31-90; 
(a)(4)(iii) and (iv) redesignated as (a)(4)(ii) and (iii); new 
(a)(4)(iii) revised; eff. 12-31-90.................................37050
173.240--173.249 (Subpart F)  Revised..............................52663
173.245  Regulation at 54 FR 25008 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25008 effective date delayed to 12-31-90; 
(a)(29)(iii) and (iv) revised; eff. 12-31-90.......................37051
173.247  Regulation at 54 FR 25008 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25008 effective date delayed to 12-31-90; 
(a)(12)(ii) revised; eff. 12-31-90.................................37051

[[Page 1070]]

    (a)(12)(iii) amended; eff. 12-31-90............................39981
173.247a  Regulation at 54 FR 25008 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25008 effective date delayed to 12-31-90; 
(a)(3)(iii) revised; eff. 12-31-90.................................37051
173.248  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(a)(6)(ii) revised; eff. 12-31-90..................................37051
173.249  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(a)(6)(iv) revised; eff. 12-31-90..................................37051
173.249a  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(d)(6)(iv) revised; eff. 12-31-90..................................37051
173.250a  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(a)(2)(ii) revised; eff. 12-31-90..................................37051
173.252  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(a)(4)(ii) amended; (a)(4)(iv) and (v) revised; eff. 12-31-90......37051
    (a)(5) amended.................................................39981
173.253  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(a)(6)(iii) revised; eff. 12-31-90.................................37051
173.254  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(a)(5)(ii) revised; eff. 12-31-90..................................37052
173.255  Regulation at 54 FR 25009 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90 
                                                                   37028
173.257  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25009 effective date delayed to 12-31-90; 
(a)(4)(ii) revised; eff. 12-31-90..................................37052
173.262  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25010 effective date delayed to 12-31-90; 
(a)(11)(ii) revised; eff. 12-31-90.................................37052
173.263  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25010 effective date delayed to 12-31-90; 
(a)(10)(ii) revised; eff. 12-31-90.................................37052
173.264  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25010 effective date delayed to 12-31-90; 
(a)(14)(ii) and (b)(3) revised; eff. 12-31-90......................37052
173.265  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25010 effective date delayed to 12-31-90; 
(b)(4)(ii) revised; eff. 12-31-90..................................37052
173.266  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035

[[Page 1071]]

    Regulation at 54 FR 25010 effective date delayed to 12-31-90; 
(f)(2)(iv) redesignated as (f)(2)(vi); new (f)(2)(v) added; eff. 
12-31-90...........................................................37052
173.267  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25010 effective date delayed at 12-31-90 
                                                                   37028
173.268  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25010 effective date delayed at 12-31-90 
                                                                   37028
173.271  Regulation at 54 FR 25010 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25010 effective date delayed to 12-31-90; 
(a)(8)(iv) revised; eff. 12-31-90..................................37052
173.272  Regulation at 54 FR 25011 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25011 effective date delayed to 12-31-90; 
(d), (e), (f), (g), (h) and (i)(21)(iv) revised; eff. 12-31-90.....37052
173.273  Regulation at 54 FR 25011 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25011 effective date delayed to 12-31-90; 
(a)(5) and (b)(2) revised; eff. 12-31-90...........................37053
173.274  Regulation at 54 FR 25011 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25011 effective date delayed to 12-31-90; 
(a)(4) revised; eff. 12-31-90......................................37053
173.276  Regulation at 54 FR 25011 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25011 effective date delayed to 12-31-90; 
(a)(6) introductory text and (iii) revised; eff. 12-31-90..........37053
173.277  Regulation at 54 FR 25011 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25011 effective date delayed to 12-31-90; 
(a)(9)(ii) revised; eff. 12-31-90..................................37053
173.280  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90; 
(a)(8)(ii) revised; eff. 12-31-90..................................37053
173.287  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90 
                                                                   37028
173.289  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90 
                                                                   37028
173.292  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90; 
heading and (a)(2)(iv) revised; eff. 12-31-90......................37053
173.294  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90; 
(a)(3)(ii) revised; eff. 12-31-90..................................37053
173.295  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90; 
(a)(9)(iii) revised; eff. 12-31-90.................................37053
173.296  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90 
                                                                   37028
173.297  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035

[[Page 1072]]

    Regulation at 54 FR 25012 effective date delayed to 12-31-90; 
(a)(1) corrected; (a)(1)(ii) revised; eff. 12-31-90................37054
173.300--173.320 (Subpart G)  Heading revised......................52664
173.300  Removed...................................................52665
173.300a  (b)(1) and (e) amended...................................39981
173.300b  (b)(1) amended...........................................39981
173.306  (a)(1), (3) introductory text and (b) introductory text 
        amended; (h) added.........................................52665
173.308  (a) introductory text amended.............................52665
173.314  Revised...................................................52665
173.315  Regulation at 54 FR 25012 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25012 effective date delayed to 12-31-90; 
(a)(1) introductory text removed; (i)(1)(ii) revised; eff. 12-31-
90.................................................................37054
    (a)(2) added...................................................52667
173.318  Regulation at 54 FR 25013 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25013 effective date delayed to 12-31-90; 
(b)(2)(i)(C) revised; (b)(2)(ii) amended; eff. 12-31-90............37054
173.321  Added.....................................................52667
173.322  Added.....................................................52667
173.323  Added.....................................................52667
173.324  Added.....................................................52668
173.325--173.388 (Subpart H)  Removed..............................52667
173.334  Added.....................................................52668
173.335  Added.....................................................52669
173.336  Added.....................................................52669
173.337  Added.....................................................52669
173.338  Added.....................................................52669
173.340  Added.....................................................52669
173.346  Regulation at 54 FR 25013 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25013 effective date delayed to 12-31-90; 
(a)(12) revised; eff. 12-31-90.....................................37054
173.347  Regulation at 54 FR 25013 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25013 effective date delayed to 12-31-90 
                                                                   37028
173.352  Regulation at 54 FR 25013 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25013 effective date delayed to 12-31-90 
                                                                   37028
173.353  Regulation at 54 FR 25013 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25013 effective date delayed to 12-31-90; 
(e)(3) revised; eff. 12-31-90......................................37054
173.354  Regulation at 54 FR 25014 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25014 effective date delayed to 12-31-90; 
(a)(5) amended; eff. 12-31-90......................................37054
173.358  Regulation at 54 FR 25014 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25014 effective date delayed to 12-31-90; 
(a)(14)(vi) and (vii) revised; eff. 12-31-90.......................37054
173.359  Regulation at 54 FR 25014 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25014 effective date delayed to 12-31-90; 
(a)(16)(v) and (vi) revised; eff. 12-31-90.........................37054
173.369  Regulation at 54 FR 25014 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25014 effective date delayed to 12-31-90; 
(a)(14)(iii) revised; eff. 12-31-90................................37055
173.373  Regulation at 54 FR 25014 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25014 effective date delayed to 12-31-90; 
(a)(6)(i) and (iv) revised; eff. 12-31-90..........................37055
173.374  Regulation at 54 FR 25014 effective date delayed to 9-1-
        90.........................................................21035

[[Page 1073]]

    Regulation at 54 FR 25014 effective date delayed to 12-31-90; 
(a)(4)(v) revised; eff. 12-31-90...................................37055
173.416  (d), (e), (f) and (g) amended; (c) revised................52670
173.417  (a)(1), (2), (6)(iii), (b)(1), (2) and (5) amended; 
        (a)(5), (6) introductory text and (b)(4) revised...........52670
173.421-2  Revised.................................................52670
173.471  (e) amended...............................................39981
    (e) removed....................................................52670
173.473  Introductory text revised.................................52670
173.500--173.510 (Subpart J)  Removed..............................52670
173.605--173.655 (Subpart K)  Removed..............................52670
173.800--173.862 (Subpart L)  Removed..............................52670
173.906--173.1090 (Subpart M)  Removed.............................52670
173.1200--173.1201 (Subpart N)  Removed............................52670
173.1300 (Subpart O)  Removed......................................52670
173  Appendix B amended............................................52670
    Appendix C added...............................................52671
    Appendix D added...............................................52671
    Appendix E added...............................................52673
    Appendix F added...............................................52677
174.8  (b) and (c) amended.........................................52677
174.10  (a) and (d) amended........................................52677
174.14  (b) amended................................................52677
174.16  (a), (b)(1), (2) and (3) amended...........................52677
174.18  Amended....................................................52677
174.25  (a)(2) table revised.......................................52677
    (a)(2)(i), (ii), (c) and (d) amended...........................52678
174.26  (a) amended................................................52678
174.47  (a) and (b) amended........................................52678
174.49  Amended....................................................52678
174.50  (d) amended................................................52678
174.67  (a)(3) and (k) amended.....................................52678
174.81  Revised....................................................52678
174.82--174.93 (Subpart D)  Heading revised........................52680
174.82  Added......................................................52680
174.83  Revised....................................................52680
174.84  Revised....................................................52680
174.85  Revised....................................................52680
174.86  Removed....................................................52681
174.87  Removed....................................................52681
174.88  Removed....................................................52681
174.89  Removed....................................................52681
174.90  Removed....................................................52681
174.91  Removed....................................................52681
174.92  Removed....................................................52681
174.93  Removed....................................................52681
174.100--174.115 (Subpart E)  Heading revised......................52681
174.100  Heading, (a) and (b) amended..............................52681
174.101  Heading, (a) through (f), (h) through (l), (n) 
        introductory text, (1), (2), (3), (o) introductory text, 
        (1), (2), (3) and (4) amended..............................52681
174.102  (a) and (b) amended.......................................52681
174.103  (a), (c) introductory text, (d) and (e) amended...........52681
174.104  Heading, (a), (b) introductory text, (4), (7), (8), (10), 
        (11) and (c) through (f) amended...........................52682
174.105  Heading and text amended..................................52682
174.106  Heading, (a), (b) and (c) amended.........................52682
174.107  Heading, (a) and (b) amended..............................52682
174.109  Amended...................................................52682
174.110  Amended...................................................52682
174.112  Heading, (a), (b), (c) introductory text and (3) amended 
                                                                   52682
174.114  (a) designation removed; heading and text amended.........52682
174.115  Heading, (a), (b) introductory text and (3) amended.......52682
174.200--174.290 (Subpart F)  Heading revised......................52682
174.200  (a), (b), (c) introductory text and (4) amended...........52682
174.201  Heading, (a) introductory text and (c) amended............52682
174.204  (a) introductory text and (2)(i) amended..................52682
174.208  (a) and (b) amended.......................................52682
174.280  Heading and text amended..................................52682
174.290  Revised...................................................52683
174.300--174.380 (Subpart G)  Heading revised......................52683
174.300  (a), (b), (c) introductory text and (4) amended; (d) 
        removed; (e) redesignated as (d) and amended...............52683

[[Page 1074]]

174.304  Heading and text amended..................................52683
174.380  Revised...................................................52683
174.410--174.480 (Subpart H)  Heading revised......................52683
174.410  (d) amended...............................................52683
174.430  Added.....................................................52684
174.480  Revised...................................................52684
174.510--174.580 (Subpart I)  Heading revised......................52684
174.510  Amended...................................................52684
174.580  Revised...................................................52684
174.600--174.680 (Subpart J)  Heading revised......................52684
174.600  Revised...................................................52684
174.615  (a) and (b) amended.......................................52684
174.680  Revised...................................................52684
174.700--174.750 (Subpart K)  Heading revised......................52684
174.700  Heading, (b), (c), (d), (e) introductory text, (1), (2), 
        (3) and (f) amended........................................52684
174.715  (a) and (b) amended.......................................52684
174.750  (a) and (b) amended.......................................52684
174.800--174.812 (Subpart L)  Heading revised......................52685
174.800  Heading and (a) amended; (a) designation, (b) and (c) 
        removed....................................................52685
174.810  (a) and (b) amended.......................................52685
174.812  Removed...................................................52685
174.840 (Subpart M)  Heading revised...............................52685
174.840  Amended...................................................52685
175  Authority citation revised...............................875, 39981
175.10  (a)(7) amended.............................................39981
    (a)(4)(i), (ii), (8), (13), (14)(vii), (17) and (19) amended 
                                                                   52685
175.25  (a)(2)(ii) amended.........................................52685
175.30  (c)(2) amended.............................................52685
175.33  (b) revised..................................................875
    Regulation at 55 FR 875 effective date delayed to 9-17-90......20796
    Regulation at 55 FR 875 effective date delayed to 12-31-90; 
(b) republished.............................................33711, 33713
    (a)(3) and (6) amended.........................................52685
175.45  (c) amended................................................39981
    (a)(2) and (3) amended.........................................52685
175.75  (a)(2), (3) introductory text, (ii) and (b) amended........52685
175.81  (b) amended................................................52685
175.85  (c)(1)(i) and (ii) amended; (c)(1)(iii) and (vii) removed; 
        (c)(1)(iv) through (vi) redesignated as (c)(1)(iii) 
        through (v); new (c)(1)(iii) and (iv) amended; new 
        (c)(1)(v) revised..........................................52685
175.90  (d) introductory text amended..............................52685
175.305  (a) amended...............................................52685
175.310  Introductory text, (c)(1), (2) and (3) amended............52686
175.320  (a) table revised; (b)(8), (9), (c) introductory text and 
        (4)(iii) amended...........................................52686
175.630  (a) amended...............................................39981
    Heading revised; (a) and (b) amended...........................52686
175.640  Heading revised; text amended.............................52687
175.700  Heading, (b) and (c) amended..............................52687
175.701  Heading, (b)(1) and (2) amended...........................52687
175.702  Heading, (a), (b)(2)(i), (iii) and (iv) amended...........52687
175.703  Heading, (a), (b), (c) introductory text, (1) and (d)(3) 
        amended....................................................52687
175.705  Heading and (a) amended...................................52687
176  Authority citation revised....................................52687
176.2  Added.......................................................52687
176.3  (b) revised.................................................52688
176.4  Added.......................................................52688
176.5  (b)(6) and (d) revised; (e) removed.........................52688
176.9  Revised.....................................................52688
176.11  (a)(3) added; eff. 12-31-90................................33713
    (a), (c) and (f) revised.......................................52688
176.30  Regulation at 54 FR 27146 effective date delayed to 6-4-90
                                                                     874
    Regulation at 54 FR 27146 effective date delayed to 9-17-90....20796
    Regulation at 54 FR 27146 effective date delayed to 12-31-90; 
(a)(3)(i) republished.......................................33711, 33714
    (a)(3) and (5) revised.........................................52689
176.54  Heading, (b)(1) and (2) revised............................52689
176.57  Revised....................................................52689
176.58  Revised....................................................52689

[[Page 1075]]

176.65  Revised....................................................52689
176.69  (a) and (b) revised; (d) and (e) added.....................52689
176.74  (c) amended................................................52689
176.76  Regulation at 54 FR 25014 effective date delayed to 9-1-90
                                                                   21035
    Regulation at 54 FR 25014 effective date delayed to 12-31-90; 
(b) corrected; eff. 12-31-90.......................................37055
    Heading, (a) introductory text, (2), (5) and (b) revised; 
(a)(9) and (c) removed.............................................52689
176.78  (a), (d), (e)(1), (f)(3) and (l) revised...................52689
176.83  Revised....................................................52690
176.84  Added......................................................52693
176.90  Amended....................................................52695
176.91  Amended....................................................52695
176.92  Amended....................................................52695
176.93  (a) introductory text revised..............................52695
176.96  Revised....................................................52695
176.98  Amended....................................................52695
176.99  Revised....................................................52695
176.100--176.194 (Subpart G)  Revised..............................52696
176.200--176.230 (Subpart H)  Revised..............................52704
176.305--176.340 (Subpart I)  Revised..............................52705
176.400--176.419 (Subpart J)  Revised..............................52706
176.600--176.605 (Subpart L)  Revised..............................52708
176.800--176.805 (Subpart N)  Revised..............................52708
176.900--176.906 (Subpart O)  Revised..............................52708
177.800  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
177.801  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
177.802  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
177.806  (b) amended...............................................52710
177.810  Amended...................................................52710
177.811  (a) amended...............................................52710
177.814  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
177.816  (a) and (b)(2) amended....................................52710
177.818  Heading and (a) introductory text amended.................52710
177.821  (d) and (f) amended.......................................52710
177.822  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
177.824  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Revised; eff. 12-31-90.........................................37055
177.825  (a) and (b) revised; eff. 10-1-90.........................19212
    (b)(1)(iii)(A) amended.........................................39981
    Heading, (a) introductory text, (3), (b) introductory text, 
(2)(i), (c) introductory text, (d) introductory text, (1)(i), 
(ii), (2)(iv), (f) introductory text and (3) amended...............52710
177.826  Heading, (a), (b)(2) and (3) amended......................52710
177.834  (a), (c), (d), (f), (g), (l)(1), (2)(i) introductory 
        text, (i)(B), (iii)(A) introductory text, (A)(4) and (B) 
        introductory text amended..................................52710
177.835  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028

[[Page 1076]]

    Heading, (a), (b) heading, introductory text, (1), (c) 
introductory text, (4)(i), (ii), (iii), (e), (f), (g) introductory 
text, (2) introductory text, (2)(i), (ii), (3)(i), (h) through (k) 
and (m) amended....................................................52711
177.836  (a) designation removed; text amended.....................52711
177.837  Heading, (a) and (b) amended; (d) removed; (e) 
        redesignated as (d); new (d) introductory text amended.....52711
177.838  Heading revised; (h) added; (a), (b), (c), (e)(2), (f) 
        and (g) amended............................................52711
177.839  Heading, (a), (b) and (d) amended.........................52712
177.840  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
    Heading, (a) introductory text, (1), (b) introductory text, 
(d), (h) introductory text, (i) and (j) introductory text amended 
                                                                   52712
177.841  Heading and (e) revised; (a)(1) and (b) removed; (a)(2) 
        designation removed; (a) introductory text, (c) and (d) 
        introductory text amended..................................52712
177.842  Heading, (a), (b), (e) and (f) amended....................52712
177.843  (a), (b) and (c) amended..................................52712
177.844  Heading revised; text amended.............................52712
177.848  Revised...................................................52712
177.853  (c) amended...............................................52714
177.854  (f) introductory text, (1), (2), (g)(2)(iv) and (h) 
        amended....................................................52714
177.855  Heading, (a), (b), (c), (d) Note 1, (e) and (f) amended 
                                                                   52714
177.856  Heading, (a), (b) and (d) amended.........................52714
177.857  Heading, (a), (b) and (c) amended.........................52714
177.858  Heading, (a), (b) introductory text and (b)(2) amended....52714
177.859  Heading, (a) and (b) amended..............................52715
177.860  Heading, (a) introductory text, (1) and (b) amended.......52715
177.861  Heading, (a), Note 1 and Note 2 amended...................52715
177.870  (f) amended...............................................39981
    (b) through (g) amended........................................52715
177  Appendix A removed.............................................4424
178  Heading revised...............................................52715
178.0  Removed.....................................................52715
178.0-1  Redesignated as 178.1.....................................52715
178.0-2  Redesignated as 178.2 and revised.........................52715
178.0-3  Redesignated as 178.3 and revised.........................52716
178.1--178.19 (Subpart A)  Removed.................................52715
178.1  Redesignated from 178.0-1...................................52715
178.2  Redesignated from 178.0-2 and revised.......................52715
178.3  Redesignated from 178.0-3 and revised.......................52716
178.16-19  (c)(2) amended..........................................39981
178.17-6  (b)(2) amended...........................................39981
178.21  Removed....................................................52716
178.21-1  Removed..................................................52716
178.21-2  Removed..................................................52716
178.21-3  Removed..................................................52716
178.22  Removed....................................................52716
178.22-1  Removed..................................................52716
178.22-2  Removed..................................................52716
178.23  Removed....................................................52716
178.23-1  Removed..................................................52716
178.23-2  Removed..................................................52716
178.24  Removed....................................................52716
178.24-1  Removed..................................................52716
178.24-2  Removed..................................................52716
178.24-3  Removed..................................................52716
178.24-4  Removed..................................................52716
178.24-5  Removed..................................................52716
178.24-7  Removed..................................................52716
178.24a  Removed...................................................52716
178.24a-1  Removed.................................................52716
178.24a-2  Removed.................................................52716
178.24a-3  Removed.................................................52716
178.24a-4  Removed.................................................52716
178.24a-5  Removed.................................................52716
178.24a-6  Removed.................................................52716
178.25  Removed....................................................52716
178.25-1  Removed..................................................52716
178.26  Removed....................................................52716
178.26-1  Removed..................................................52716
178.27  Removed....................................................52716

[[Page 1077]]

178.27-1  Removed..................................................52716
178.27-2  Removed..................................................52716
178.27-3  Removed..................................................52716
178.27-4  Removed..................................................52716
178.28  Removed....................................................52716
178.28-1  Removed..................................................52716
178.28-2  Removed..................................................52716
178.28-3  Removed..................................................52716
178.29  Removed....................................................52716
178.29-1  Removed..................................................52716
178.30  Removed....................................................52716
178.30-1  Removed..................................................52716
178.30-2  Removed..................................................52716
178.31  Removed....................................................52716
178.31-1  Removed..................................................52716
178.32  Removed....................................................52716
178.32-1  Removed..................................................52716
178.32-2  Removed..................................................52716
178.32-3  Removed..................................................52716
178.32-4  Removed..................................................52716
178.33  Heading revised............................................52716
178.33a  Heading revised...........................................52716
178.34  Redesignated as 178.360....................................52716
178.34-1  Redesignated as 178.360-1................................52716
178.34-2  Redesignated as 178.360-2................................52716
178.34-3  Redesignated as 178.360-3................................52716
178.35  Removed....................................................52716
178.35-1  Removed..................................................52716
178.35-2  Removed..................................................52716
178.35-3  Removed..................................................52716
178.35-4  Removed..................................................52716
178.35-5  Removed..................................................52716
178.35a  Removed...................................................52716
178.35a-1  Removed.................................................52716
178.35a-2  Removed.................................................52716
178.35a-3  Removed.................................................52716
178.35a-4  Removed.................................................52716
178.45-17  (e) amended.............................................39981
178.65-14  (d) amended.............................................39981
178.80--178.150-7 (Subpart D)  Removed.............................52716
178.103--178.103-6  Redesignated as 178.352--178.352-6.............52716
178.104--178.104-5  Redesignated as 178.354--178.354-5.............52716
178.120--178.120-5  Redesignated as 178.356-178.356-5..............52716
178.121--178.121-6  Redesignated as 178.358-178.358-6..............52716
178.156--178.198-4 (Subpart E)  Removed............................52716
178.194--178.194-7  Redesignated as 178.362--178.362-7.............52716
178.195--178.195-6  Redesignated as 178.364--178.364-6.............52716
178.196--178.196-17  Removed.......................................52716
178.197--178.197-16  Removed.......................................52716
178.198--178.198-4  Removed........................................52716
178.205--178.226-4 (Subpart F)  Removed............................52716
178.230--178.241-5 (Subpart G)  Removed............................52716
178.270-11  (c)(1) and (2) revised.................................52716
178.320  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Revised; eff. 12-31-90.........................................37055
178.337  Regulation at 54 FR 25015 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
178.337-1  Regulation at 54 FR 25015 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90; 
(e)(2) amended eff. 12-31-90.......................................37056
178.337-2  Regulation at 54 FR 25015 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25015 effective date delayed to 12-31-90 
                                                                   37028
178.337-3  Regulation at 54 FR 25015 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37056
178.337-4  Regulation at 54 FR 25017 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25017 effective date delayed to 12-31-90 
                                                                   37028
178.337-6  Regulation at 54 FR 25017 effective date delayed to 9-
        1-90; (a) amended...................................21035, 21038
    Regulation at 54 FR 25017 and 55 FR 21038 effective date 
delayed to 12-31-90................................................37028
178.337-8  Regulation at 54 FR 25017 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25017 effective date delayed to 12-31-90 
                                                                   37028

[[Page 1078]]

178.337-9  Regulation at 54 FR 25017 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25017 effective date delayed to 12-31-90; 
(b)(6) revised; eff. 12-31-90......................................37057
178.337-11  Regulation at 54 FR 25017 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25017 effective date delayed to 12-31-90; 
(a)(1)(v) and (c)(1) amended; eff. 12-31-90........................37057
178.337-14  Regulation at 54 FR 25018 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25018 effective date delayed to 12-31-90 
                                                                   37028
178.337-15  Regulation at 54 FR 25018 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25018 effective date delayed to 12-31-90; 
eff. 12-31-90......................................................37028
178.337-18  Regulation at 54 FR 25018 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25018 effective date delayed to 12-31-90; 
(a) revised; eff. 12-31-90.........................................37057
178.338-3  Regulation at 54 FR 25018 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37057
178.338-8  Regulation at 54 FR 25019 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25019 effective date delayed to 12-31-90 
                                                                   37028
178.338-17  Regulation at 54 FR 25020 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25020 effective date delayed to 12-31-90; 
(b) revised; eff. 12-31-90.........................................37058
178.338-19  (a) revised; (b) amended; eff. 12-31-90................37058
178.340  Regulation at 54 FR 25020 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25020 effective date delayed to 12-31-90 
                                                                   37028
178.341  Regulation at 54 FR 25020 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25020 effective date delayed to 12-31-90 
                                                                   37028
178.342  Regulation at 54 FR 25020 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25020 effective date delayed to 12-31-90 
                                                                   37028
178.343  Regulation at 54 FR 25020 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25020 effective date delayed to 12-31-90 
                                                                   37028
178.345  Regulation at 54 FR 25020 effective date delayed to 9-1-
        90.........................................................21035
    (b)(3) introductory text amended...............................21038
    Regulation at 54 FR 25020 effective date delayed to 12-31-90 
                                                                   37028
178.345-1  Regulation at 54 FR 25020 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25020 effective date delayed to 12-31-90; 
(c) amended; (h) and (i)(2); eff. 12-31-90.........................37059
178.345-2  Regulation at 54 FR 25021 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25021 effective date delayed to 12-31-90; 
(a) introductory text, (1), (b) and (c) introductory text revised; 
eff. 12-31-90......................................................37059
178.345-3  Regulation at 54 FR 25021 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37059
178.345-4  Regulation at 54 FR 25022 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25022 effective date delayed to 12-31-90 
                                                                   37028
178.345-5  Regulation at 54 FR 25022 effective date delayed to 9-
        1-90.......................................................21035

[[Page 1079]]

    Regulation at 54 FR 25022 effective date delayed to 12-31-90 
                                                                   37028
178.345-6  Regulation at 54 FR 25023 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25023 effective date delayed to 12-31-90 
                                                                   37028
178.345-7  Regulation at 54 FR 25023 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37060
178.345-8  Regulation at 54 FR 25023 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25023 effective date delayed to 12-31-90; 
(a)(3) amended; (a) introductory text, (1) introductory text, (5), 
(b) introductory text, (c) introductory text, (d) introductory 
text, (1), (2)(i) and (3) revised; eff. 12-31-90...................37061
178.345-9  Regulation at 54 FR 25025 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25025 effective date delayed to 12-31-90; 
(c) through (g) redesignated as (d) through (h); new (c) added; 
(a) and (b) new (d) and (h) revised; eff. 12-31-90.................37061
178.345-10  Regulation at 54 FR 25025 effective date delayed to 9-
        1-90; (b)(3) introductory text amended..............21035, 21038
    Regulation at 54 FR 25025 and 21038 effective date delayed to 
12-31-90; (e) introductory text amended; (a), (b)(2) through (4), 
(c), (d), (e) introductory text, (g)(1) and (h)(3) revised; eff. 
12-31-90...........................................................37062
178.345-11  Regulation at 54 FR 25026 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37062
178.345-12  Regulation at 54 FR 25026 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37062
178.345-13  Regulation at 54 FR 25026 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25026 effective date delayed to 12-31-90; 
(b)(2) revised; eff. 12-31-90......................................37063
178.345-14  Regulation at 54 FR 25027 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25027 effective date delayed to 12-31-90; 
(e)(1) amended; (b) introductory text, (3), (7) through (15), 
(c)(1), (2), (8) and (d) revised; eff. 12-31-90....................37063
178.345-15  Regulation at 54 FR 25028 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37063
178.346  Regulation at 54 FR 25028 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25028 effective date delayed to 12-31-90; 
(d)(3) and (8) revised; eff. 12-31-90..............................37063
178.346-1  Regulation at 54 FR 25028 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25028 effective date delayed to 12-31-90 
                                                                   37028
178.346-2  Regulation at 54 FR 25028 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25028 effective date delayed to 12-31-90; 
(a) Table I amended; eff. 12-31-90.................................37064
178.346-3  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-4  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-5  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028

[[Page 1080]]

178.346-6  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-7  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-8  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-9  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-10  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90; 
(b)(2), (c) and (d) revised; eff. 12-31-90.........................37064
178.346-11  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-12  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-13  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90; 
(c) revised; eff. 12-31-90.........................................37064
178.346-14  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.346-15  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37028
178.347  Regulation at 54 FR 25029 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90 
                                                                   37064
178.347-1  Regulation at 54 FR 25029 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25029 effective date delayed to 12-31-90; 
(d) introductory text, (3) and (8) revised; eff. 12-31-90..........37028
178.347-2  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90; 
(a) Tables I and II amended; eff. 12-31-90.........................37064
178.347-3  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-4  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-5  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-6  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-7  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035

[[Page 1081]]

    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-8  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-9  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-10  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90; 
(a) amended; (b) and (d) revised; eff. 12-31-90....................37064
178.347-11  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-12  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-13  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-14  Regulation at 54 FR 25030 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25030 effective date delayed to 12-31-90 
                                                                   37028
178.347-15  Regulation at 54 FR 25031 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25031 effective date delayed to 12-31-90 
                                                                   37028
178.348  Regulation at 54 FR 25031 effective date delayed to 9-1-
        90.........................................................21035
    Regulation at 54 FR 25031 effective date delayed to 12-31-90 
                                                                   37028
178.348-1  Regulation at 54 FR 25031 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25031 effective date delayed to 12-31-90; 
(d), (e)(1), (2) introductory text, (iii) and (viii) revised; eff. 
12-31-90...........................................................37065
178.348-2  Regulation at 54 FR 25031 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25031 effective date delayed to 12-31-90; 
(a) Tables I and II amended; eff. 12-31-90.........................37065
178.348-3  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-4  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-5  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-6  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-7  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-8  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028

[[Page 1082]]

178.348-9  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Revised; eff. 12-31-90.........................................37065
178.348-10  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90; 
(a) amended; (b) and (d)(3) revised; eff. 12-31-90.................37065
178.348-11  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-12  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-13  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-14  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.348-15  Regulation at 54 FR 25032 effective date delayed to 9-
        1-90.......................................................21035
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
178.350--178.364-6 (Subpart K)  Revised............................52716
178.352--178.352-6  Redesignated from 178.103--178.103-6...........52716
178.354--178.354-5  Redesignated from 178.104--178.104-5...........52716
178.356--178.356-5  Redesignated from 178.120--178.120-5...........52716
178.358--178.358-6  Redesignated from 178.121--178.121-6...........52716
178.360  Redesignated from 178.34..................................52716
178.360-1  Redesignated from 178.34-1..............................52716
178.360-2  Redesignated from 178.34-2..............................52716
178.360-3  Redesignated from 178.34-3..............................52716
178.362--178.362-7  Redesignated from 178.194--178.194-7...........52716
178.364--178.364-6  Redesignated from 178.195--178.195-6...........52716
178.500--178.523 (Subpart L)  Added.........................52716, 52717
178.600--178.609 (Subpart M)  Added.........................52716, 52723
178  Appendix A heading revised....................................52728
    Appendix B added...............................................52728
179.101-1  Table amended...........................................52728
179.102-1  (a)(2) through (6) removed..............................52728
179.102-2  (a)(1), (2) and (3) removed; (a)(4) redesignated as new 
        (a)(1).....................................................52728
179.102-3  Removed.................................................52728
179.102-4  (a) and (l) removed.....................................52728
179.102-5  Removed.................................................52728
179.102-6  Removed.................................................52728
179.102-7  Removed.................................................52728
179.102-8  Removed.................................................52728
179.102-9  Removed.................................................52728
179.102-10  Removed................................................52728
179.102-11  Removed................................................52728
179.102-12  Removed................................................52728
179.102-13  Removed................................................52728
179.102-14  Removed................................................52728
179.102-15  Removed................................................52728
179.102-16  Removed................................................52728
179.102-17  (a) amended; (m) removed...............................52728
179.102-20  Removed................................................52728
179.105  Heading revised...........................................52728
179.105-1  Revised.................................................52728
179.105-2  Removed.................................................52729
179.105-3  Removed.................................................52729
179.105-4  (c) amended.............................................39981
    (a) introductory text amended..................................52729
179.105-7  (a) amended; (c) revised................................52729
179.105-8  (d) and (e) added.......................................52729
179.106--179.106-4  Removed........................................52729
179.200-18  (b)(1) and (4) revised.................................52729
179.201-1  (a) table amended.......................................52729
179.202--179.202-22  Removed.......................................52729
179.203-1  (c) and (d) removed; (e) redesignated as (c)............52729

[[Page 1083]]

179.203-2  (a)(1) removed; (a)(2) through (4) redesignated as 
        (a)(1) through (3).........................................52729
179.300-7  (a) revised.............................................27642
179.302  Removed...................................................52729
180  Regulation at 54 FR 25032 effective date delayed to 9-1-90; 
        authority citation revised..........................21035, 21038
    Regulation at 54 FR 25032 effective date delayed to 12-31-90 
                                                                   37028
180.401  Amended; eff. 12-31-90....................................37065
180.403  Amended; eff. 12-31-90....................................37065
180.405  Effective date delayed to 9-1-90; (b), (c)(1) table, (f) 
        introductory text, (f)(2)(i), (4)(i), (g)(1), (2), (3), 
        and (h) amended.....................................21035, 21038
    Regulation at 54 FR 21038 effective date delayed to 12-31-90; 
(c)(2)(iii) and (e) amended; (b), (f) introductory text, (1)(ii) 
introductory text, (2), (4), (g)(1), (2), (h), and (k) 
introductory text revised; eff. 12-31-90...........................37066
180.407  Effective date delayed to 9-1-90; (g)(1)(iv) amended.....21035, 
                                                                   21038
    Regulation at 54 FR 21038 effective date delayed to 12-31-90; 
(e)(3) removed; (a)(4) and (5), (e)(4) through (6) redesignated as 
(a)(5) and (6), and (e)(3) through (5), (g)(1)(iii) through (viii) 
redesignated as (g)(1)(iv) through (g)(1)(ix); new (a)(4), 
(d)(2)(ix), (f)(3), (4), (g)(1)(iii) added; heading, (b) 
introductory text, (3), (c), (d)(1), (2)(v) through (viii), (3), 
(4), (e)(2)(ii), (f)(1)(ii), (g)(5)(ii), (6), (h)(1), (3), (i) and 
new (e)(3) and new (g)(1)(ix) revised; eff. 12-31-90...............37067
180.409  Revised; eff. 12-31-90....................................37069
180.413  Effective date delayed to 9-1-90; (a) introductory text 
        amended.............................................21035, 21038
    Regulation at 54 FR 21038 effective date delayed to 12-31-90; 
(a) introductory text, (b)(5), (c), (d)(1) introductory text, 
(iii), (v) and (3) revised; (b)(1)(vi)(A) amended; eff. 12-31-90 
                                                                   37069
180.415  Revised; eff. 12-31-90....................................37069
180.417  Effective date delayed to 9-1-90; (a)(3) heading amended 
                                                            21035, 21038
    Regulation at 54 FR 21039 effective date delayed to 12-31-90; 
(a)(1) and (3)(ii) amended; (b)(1)(vi) and (viii) revised; eff. 
12-31-90...........................................................37070

                                  1991

49 CFR
                                                                   56 FR
                                                                    Page
Chapter I
106.3  (a) revised.................................................66156
106  Appendix A amended............................................66156
107  Authority citation revised.....................................8621
107.1  (a) amended.................................................66156
107.3  Amended......................................................8621
    Amended........................................................66157
107.5  (a) and (b) amended..........................................8621
107.7  (a) and (c) amended..........................................8621
107.9  (c) amended..................................................8622
107.103  (a), (b)(1) and (c) amended................................8621
107.105  (a)(1) amended.............................................8621
107.107  Amended....................................................8621
107.109  (b), (c) introductory text, (2), (d) and (e) amended.......8621
    (a) revised.....................................................8622
107.111  (a), (b)(1) and (c) amended................................8621
    (d) revised.....................................................8622
107.113  (c) amended................................................8621
107.115  (a), (b) and (c) amended...................................8621
107.117  (a) amended................................................8621
107.119  (b), (c), (d) and (e) amended..............................8621
107.121  Amended....................................................8621
107.123  (a) and (b) amended........................................8621
107.201  (a) and (d) revised........................................8622
107.202  Added......................................................8622
107.203--107.211  Undesignated center heading revised...............8622
107.203  (a), (b) and (c) revised; (d) added........................8622

[[Page 1084]]

107.205  (a), (b) and (c) amended...................................8621
107.207  (a) and (b) introductory text amended......................8621
    (b)(1) amended..................................................8622
107.209  Heading, (a) and (b) revised; (c) removed; (d) through 
        (f) redesignated as (c) through (e) and revised.............8623
107.211  Amended....................................................8623
107.215--107.225  Undesignated center heading amended...............8623
107.215  (b)(1) amended.............................................8621
    (b) introductory text, (4) and (5) amended; (a) revised.........8623
    (b)(4) and (5) correctly revised...............................15510
    (b)(6), (7) and (8) revised....................................66156
107.217  (a), (b)(2), (c), (d) and (e) amended......................8621
107.219  (a) through (d) amended....................................8621
    (c) through (e) amended.........................................8623
107.221  (a) and (d) amended........................................8621
    (b) introductory text and (e) revised...........................8623
107.223  Amended....................................................8621
107.227  Added......................................................8623
107.299--107.339 (Subpart D)  Authority citation revised............8624
107.299  Amended....................................................8624
107.301  Amended....................................................8621
107.303  Amended....................................................8621
107.305  (a) through (d) amended....................................8621
107.309  (a) and (b)(1) amended.....................................8621
107.311  (a) and (b)(1) amended.....................................8624
107.317  (c) amended...............................................66157
107.327  (a)(1) amended.............................................8621
    (a)(1) corrected...............................................15510
107.329  Revised....................................................8624
107.333  Revised....................................................8624
107.335  Amended....................................................8621
    Corrected......................................................15510
107.336  Added......................................................8624
107.401  (b) amended...............................................66157
107.402  (a), (b)(6) and (c) amended...............................66157
107.403  (a) and (b) amended.......................................66157
107.404  (a)(3) and (b) amended....................................66157
107.405  (a) and (b) amended.......................................66157
107.502  (d) amended...............................................66157
107.504  (c) amended...............................................27875
107.601--107.603 (Subpart G)  Removed..............................66157
171  Authority citation revised..............................8624, 47161
171.1  (c) added....................................................8624
171.2  (f) and (g) added............................................8624
171.3  Note 1 amended..............................................66157
171.4  Removed.....................................................66157
171.5  Removed.....................................................66157
171.6  Revised.....................................................66157
171.7  (a)(3) table amended; eff. 1-15-92..........................57562
    (a) introductory text, (3) and (b) table amended...............66158
171.8  Amended; eff. 3-30-92.......................................49987
    Amended........................................................66158
171.10  Revised....................................................66159
171.11  (c) and (d)(9) revised; (d)(12) added......................66159
171.12  (b) revised; (c) introductory text amended; (c)(1) and (2) 
        added......................................................66159
171.12a  (a), (b) introductory text and (4) amended; (b)(1), (5) 
        and (13) revised; (b)(14) added............................66160
171.14  Revised....................................................47161
    (b)(1)(iii) removed; (b)(2)(ii) and (4)(ii) revised............49830
    Republished....................................................66161
171.19  Nomenclature change........................................66162
171.20  (a) through (c) amended....................................66162
172  Authority citation revised....................................66162
172.101  Table amended...............................................200
    Regulation at 56 FR 200 effective date delayed to 9-30-91.......7312
    (i)(3)(iii) added; eff. 3-30-92................................49987
    Table amended; eff. 3-30-92....................................49988
    (c)(8) heading and (10) heading revised; (c)(9) heading, 
(10)(i)(E) and (F), (c)(12)(ii) heading, (iii) heading added; 
(c)(10)(i) introductory text, (C), (D), (ii), (11) introductory 
text, (12)(i), (iii), (d)(4), (f), (i)(3) introductory text, (i), 
(4) and (l)(2) amended.............................................66162
    Table revised..................................................66163

[[Page 1085]]

172.102  (a), (b) introductory text, (c)(1) through (3), (5), (7) 
        introductory text, (i) table and (ii) amended, (a)(1) and 
        (2) added..................................................66250
172.202  (a)(2), (4) and (5) revised...............................66252
172.203  (k)(3) amended..............................................200
    Regulation at 56 FR 200 effective date delayed to 9-30-91.......7312
    (g)(3) and (n) added; eff. 3-30-92.............................49989
    (d)(1)(i) through (v), (d)(1)(vi) introductory text, (A) 
through (D), (vii) and (viii) redesignated as (d)(2) through (6), 
(7) introductory text, (i) through (iv), (d)(8) and (9); (d) 
introductory text added; (d)(1), (i), (k)(3), (m)(1), (2) and (3) 
revised............................................................66253
    (c)(2), (k) introductory text, (1), (2), (4)(ii), (iii) and 
(iv) amended.......................................................66254
172.302  (b)(2) and (3) revised; (f) added.........................66254
172.303  (b) introductory text republished; (b)(3) added...........66254
172.312  (a)(2) revised; (c)(4) and (5) added......................66254
172.313  (a) revised...............................................66254
172.316  Heading revised...........................................66254
172.320  Revised...................................................66254
172.325  Added; eff. 3-30-92.......................................49989
172.326  (c)(1) and (2) amended....................................66255
172.328  (c) introductory text revised.............................66255
172.330  (a)(1) and (2) revised....................................66255
172.332  (a) amended...............................................66255
172.334  (a) amended...............................................66255
172.336  Heading revised; (b)(1), (c)(2) and (3) amended...........66255
172.400  (a)(3) and (b) table amended..............................66255
172.402  (b) and (c) redesignated as (c) and (d); (a) introductory 
        text and new (d) revised; new (b) and new (e) added........66255
172.405  (b) removed; (c) redesignated as (b); and new (b) revised
                                                                   66255
172.406  (a) heading, (1)(ii), (b) heading, (c) heading, (e) 
        introductory text and (f) heading revised; (d) heading 
        added......................................................66255
172.407  (d)(4) revised............................................66256
172.411  Revised...................................................66256
172.415  Republished...............................................66256
172.416  Republished...............................................66257
172.417  Republished...............................................66257
172.419  Republished...............................................66257
172.420  Republished...............................................66257
172.422  Republished...............................................66257
172.423  Republished...............................................66257
172.426  Republished...............................................66257
172.427  Republished...............................................66258
172.430  Republished...............................................66258
172.431  Republished...............................................66258
172.432  Republished...............................................66258
172.436  Republished...............................................66259
172.438  Republished...............................................66259
172.440  Republished...............................................66259
172.442  Republished...............................................66259
172.446  Republished...............................................66259
172.448  Republished...............................................66259
172.502  (c) removed; (d) redesignated as (c); (a) heading, (b) 
        and new (c) revised........................................66259
172.504  (f)(4), (7) and (8) revised; new (g) added; (a), (b), (c) 
        introductory text, (e) Table 1, Table 2, (f) introductory 
        text, (3) and (5) amended..................................66260
172.505  Heading and (b) revised; (d) added; (a) amended...........66260
172.510  (c) revised; (a)(2) and (3) amended.......................66260
172.519  (a)(2) removed; (a)(3) and (4) redesignated as (a)(2) and 
        (3); new (a)(2) amended; (f) revised.......................66260
172.522  (a) republished in part; (b) revised......................66260
172.523  (a) republished in part; (b) revised......................66261
172.524  (a) republished in part; (b) revised......................66261
172.525  (a) republished in part; (b) revised......................66261
172.526  (a)(1), (2) and (4) revised; (c)(3) amended...............66261
172.528  Republished...............................................66261
172.530  Republished...............................................66262
172.532  Republished...............................................66262
172.540  Republished...............................................66262
172.542  Republished...............................................66262

[[Page 1086]]

172.544  Republished...............................................66262
172.546  Republished...............................................66263
172.547  Republished...............................................66263
172.548  Republished...............................................66263
172.550  Republished...............................................66263
172.552  Republished...............................................66263
172.553  Republished...............................................66263
172.554  Republished...............................................66264
172.556  Republished...............................................66264
172.558  Republished...............................................66264
172.560  Republished...............................................66264
173  Authority citation revised..............................8624, 50665
173.2a  (a)(8) and (b) table amended...............................66264
173.3  (c)(1) revised; (c)(3) amended..............................66265
173.3a  Removed....................................................66265
173.4  (b) amended..................................................8624
    (a)(6)(ii) revised; (b) amended................................66265
173.10  (a) amended................................................66265
173.11  (a) amended................................................66279
173.12  (b) revised; (d) added.....................................66265
173.21  (f) introductory text, (2) and (i) amended.................66265
173.22  (c)(2) amended.............................................66265
173.22a  (b) amended...............................................66279
173.24  (b)(2) revised; eff. 3-30-92...............................49989
    (h) heading revised; (c)(2), (g)(2) and (g)(3) amended.........66265
173.24a  (b)(3) revised............................................66265
    (b)(2) and (5) amended.........................................66266
173.24b  (a)(1), (3) and (d)(2) amended............................66266
173.25  (a)(5) and (c) revised.....................................66266
173.27  (c)(2)(i) and (f) Table 2 amended..........................66266
173.28  Heading, (b)(2)(i), (ii) and (4) table revised; (b)(4) and 
        (5) amended................................................66266
173.29  (g) added; eff. 3-30-92....................................49989
173.31  (a)(7) added...............................................50665
    (a)(18) added..................................................66266
173.32  Heading revised; (a)(5) amended............................66266
173.32a  (c), (d), (h) introductory text, (2) introductory text 
        and (3) amended............................................66279
173.32c  (q) added; (q)(2) amended.................................66266
173.33  (a)(3) revised; (c)(4), (d)(1) and (2) amended.............27875
173.34  (e) introductory text table amended; (e)(17) added; (f)(2) 
        revised; eff. 1-15-92......................................57562
    (c)(3) amended.................................................66266
    (e)(i)(iv), (i) introductory text, (4)(i), (6), (l) 
introductory text, (2) and (3) amended.............................66279
173.50--173.114a (Subpart C)  Heading revised......................66267
173.50  (b)(4) revised; Footnote 1 amended.........................66267
173.54  (a) and (j) amended........................................66267
173.56  (b)(1), (g) and (h)(3) amended.............................66267
173.58  (b) introductory text, (2), (c)(1)(ii) and (iii) amended; 
        (c)(1)(iv) added...........................................66267
173.59  Amended....................................................66267
173.60  (b)(8) amended.............................................66267
173.61  (d) amended................................................66267
173.62  (a) revised; (e) added; (b) introductory text, table, (c) 
        table, and (d) table amended...............................66267
173.63  (a) introductory text amended; (d) and (e) removed.........66268
173.115  (a), (c) introductory text and (2) revised................66268
173.116  (a) amended...............................................66268
173.120  (a) revised; eff. 3-30-92.................................49989
    (b)(2) revised; (a)(1) introductory text, (ii), (b)(1) and 
(c)(2) amended.....................................................66268
173.121  (a) table and (b)(1)(iv) table amended....................66268
173.124  (a)(3)(ii), (iii), (b)(1) and (2) amended.................66268
173.128  (c)(2) and (d) amended....................................66268
173.132  (a)(1) introductory text, (iii)(b), (b)(1) and (2) 
        amended....................................................66268
173.133  Heading and (a)(2) revised................................66268
    (a)(1) table and (b)(1)(ii) amended............................66270
173.134  (a)(4) added; (a)(1) amended..............................66270
173.136  (b) amended...............................................66270
173.137  (a), (b) and (c)(1) amended...............................66270
173.140  (c) added; (a) and (b) amended; eff. 3-30-92..............49989

[[Page 1087]]

    Revised........................................................66270
173.150  (f)(1), (3)(iv), (vi) and (vii) revised; (b)(3) amended 
                                                                   66270
173.154  (d) amended...............................................66270
173.155  (b) amended...............................................66270
173.156  (b) amended...............................................66270
173.158  (e) and (h)(2) amended....................................66270
173.159  (d)(1) amended............................................66270
173.164  (b)(2), (3) and (4) redesignated as (b)(3), (4) and (5); 
        (b)(1) redesignated in part as (b)(2); new (b)(2) and 
        (3)(iv) amended............................................66270
173.171  Introductory text and (a) revised; (c) amended............66270
173.173  (a) amended...............................................66270
173.181  (c) introductory text and (3) amended.....................66270
173.185  (j) introductory text revised; (k) added; (a), (i) 
        introductory text, (j)(2) and (3) amended..................66271
173.188  (a)(2) revised............................................66271
173.192  Introductory text and (a)(2) amended......................66271
173.193  (c) redesignated as (d) and revised; (b) amended; new (c) 
        added......................................................66271
173.195  Heading revised...........................................66271
173.197  Added.....................................................66271
173.202  (c) amended...............................................66271
173.203  (c) amended...............................................66271
173.211  (c) amended...............................................66271
173.224  (c) table amended.........................................66271
173.225  (b) table revised.........................................66271
    (c)(4)(i), (d)(1) Table, (2) Table amended.....................66274
173.226  (b) introductory text and (c)(2) amended..................66274
173.227  (b) introductory text, (3)(ii)(D) and (iii)(D) amended....66274
173.230  (b)(1)(v) and (2)(v) added; (b)(1)(iii), (iv), (2)(iii) 
        and (iv) amended...........................................66274
173.240  (a) and (c) revised.......................................66274
173.241  (c) revised...............................................66275
173.242  (a) amended...............................................66275
173.243  (a) and (b)(2) amended....................................66275
173.244  Heading and (b) revised; (a) amended......................66275
173.245  (a)(29) introductory text amended.........................27875
    (a) added......................................................66275
173.247  Added; eff. 3-30-92.......................................49989
    (c)(3) corrected...............................................65541
    (c)(5), (d)(2), (3) and (4) amended............................67543
173.249  (b) and (c) amended.......................................66275
173.300a  (b)(1), (c) through (e) and (g) through (i) amended......66279
173.300b  (b)(1) and (c) through (g) amended.......................66279
173.300c  (a) introductory text and (b) amended....................66279
173.302  (h) added; (a) introductory text and (4)(iii) amended.....66275
173.303  (e) added; eff. 1-15-92...................................57563
173.304  (g) added; (a) introductory text, (1) and (4)(ii) amended
                                                                   66275
173.305  (a) and (d) amended.......................................66275
    (c)(1) amended.................................................66279
173.306  (a)(2) and (3) amended....................................55472
    (i) added; (a) introductory text, (3)(i), (b) introductory 
text, (1), (3) and (h) introductory text amended...................66275
173.308  (a)(1), (2), (3) and (c) amended..........................66276
173.314  (c) revised; (g)(3) added.................................66276
    (a), (b)(3) and (6) amended....................................66277
173.315  Heading revised; (a)(2) removed; (a) table and (c) 
        introductory text amended..................................66277
    (i)(12) amended................................................66279
173.318  (e) amended...............................................66279
173.323  (b)(1) and (4) revised; (a) amended.......................66279
173.369  (a)(14)(iii) amended......................................27875
173.373  (a)(6)(iv) amended........................................27875
173.374  (a)(4)(v) amended.........................................27875
173.386  (d)(3) removed; (a)(1) and (3) revised......................200
    Regulation at 56 FR 200 effective date delayed to 9-30-91.......7312
173.387  (a) revised.................................................200
    Regulation at 56 FR 200 effective date delayed to 9-30-91.......7312
173.421-1  (b)(2) amended...........................................8624
    Heading and (a) revised........................................66279
173.421-2  (d) removed.......................................8624, 66279
173.457  (b)(4) amended............................................66279
173.465  (d) amended...............................................66279
173.471  (f) amended (OMB number)..................................66279

[[Page 1088]]

173.473  (a)(1) and (3) amended....................................66279
173  Appendix B amended............................................66279
    Appendix E amended; Appendix G added...........................66280
174.25  (a)(2) table, (b)(1)(i) and (c) amended....................66280
174.67  (a)(3) amended.............................................66280
174.81  (d) table and (e)(5) revised...............................66280
    (b), (e)(3) and (h) amended....................................66281
174.82  (a) amended................................................66281
174.83  (b)(2) amended.............................................66281
174.84  Amended....................................................66281
174.86  Added; eff. 3-30-92........................................49990
174.200  (c)(4) amended............................................66281
175.10  (a)(2), (4)(ii) and (15) amended...........................66281
175.320  (b)(9) amended............................................66281
175.701  (c) introductory text amended.............................66281
176.5  (a) amended.................................................66281
176.11  (a) amended................................................66281
176.30  (a)(5)(i) amended..........................................66281
176.69  (a) amended................................................66282
176.74  (c) amended................................................66282
176.76  (a)(2) amended.............................................66282
176.83  (a)(7)(i), (ii), (f) table, (g)(2) and (g) table amended 
                                                                   66282
176.84  Heading revised; (b) table, (c)(2) Table and (c)(3)(ii)(A) 
        amended....................................................66282
176.99  Amended....................................................66282
176.132  (a)(2) amended............................................66282
176.136  (c) amended...............................................66282
176.146  (d)(1) and (2) amended....................................66282
176.156  (d) amended...............................................66282
176.170  (a), (c) and (e) amended..................................66282
176.205  (b)(7) amended............................................66282
176.305  (d)(2) amended............................................66282
176.315  (a) amended...............................................66282
176.410  (b) amended...............................................66282
176.415  (c)(1), (2) and (5) revised; (a)(1), (2), (b)(1), (5), 
        (6), (c)(3) and (4) amended................................66282
176.704  (f) amended...............................................66283
176.905  (k) revised...............................................66283
177.821  (f) amended...............................................66284
177.825  (f) introductory text amended.............................66283
    (b)(1)(iii)(A) and (B) amended.................................66284
177.826  (a) amended...............................................66284
177.838  (g) amended...............................................66284
177.844  Heading amended...........................................66283
177.848  (d) table and (e)(5) revised; (b), (e)(3) and (h) amended
                                                                   66283
177.870  (e) amended...............................................66283
178.2  Heading, (b) and (c) introductory text revised; (c)(1)(ii) 
        amended....................................................66284
178.3  (c) added...................................................66284
178.33-9  (a)(2) amended...........................................66287
178.33a  Heading amended...........................................66284
178.33a-9  (a)(2) amended..........................................66287
178.34-4  Redesignated as 178.360-4................................66284
178.36-3  Amended..................................................66287
178.36-20  (a)(3) amended..........................................66287
178.37-3  Amended..................................................66287
178.37-20  (a)(3) amended..........................................66287
178.38-3  Amended..................................................66287
178.38-20  (a)(2) amended..........................................66287
178.39-3  Amended..................................................66287
178.39-19  (a)(2) amended..........................................66287
178.42-3  Amended..................................................66287
178.42-14  (a)92) amended..........................................66287
178.44-3  Amended..................................................66287
178.44-23  (a)92) amended..........................................66287
178.45-3  Amended..................................................66287
178.45-17  (e) amended.............................................66284
178.46-3  Amended..................................................66287
178.46-15  (a)92) amended..........................................66287
178.47-3  Amended..................................................66287
178.47-21  (a092) amended..........................................66287
178.50-3  Amended..................................................66287
178.50-19  (a)920 amended..........................................66287
178.51-3  Amended..................................................66287
178.51-19  (a)92) amended..........................................66287
178.53-3  Amended..................................................66287
178.53-18  (a)92) amended..........................................66287
178.55-3  Amended..................................................66287
178.55-20  (a)92) amended..........................................66287
178.56-3  Amended..................................................66287
178.56-19  (a)(2) amended..........................................66287
178.57-3  Amended..................................................66287
178.57-20  (a)(3) amended..........................................66287
178.58-3  Amended..................................................66287
178.58-21  (a)(2) amended..........................................66287
178.59-3  (a) amended..............................................66287
178.59-18  (a)(2) amended..........................................66287
178.60-3  (a) amended..............................................66287
178.60-22  (a)(2) amended..........................................66287
178.61-3  Amended..................................................66287
178.61-20  (a)(2) amended..........................................66287
178.65-3  (a) amended..............................................66287
178.65-3  (b) and (c) amended......................................66287
178.65-14  (d) amended.............................................66284
178.68-3  Amended..................................................66287

[[Page 1089]]

178.68-19  (a)(2) amended..........................................66287
178.270-2  (b) amended.............................................66284
    (c) amended....................................................66287
178.270-5  (d) amended.............................................66284
178.337-3  (c) revised.............................................27875
    (c) introductory text corrected................................46354
178.337-6  (a) amended.............................................27876
178.338-3  (c) revised.............................................27876
    (c) introductory text corrected................................46354
178.345-2  (a)(1) amended..........................................27876
178.345-3  (a)(1) and (g)(2) amended; (c) revised..................27876
178.345-7  (a)(2) revised; (c) and (d) introductory text amended 
                                                                   27876
    (a)(2) corrected...............................................46354
178.345-8  (d)(3) amended..........................................27877
178.345-9  (a) revised.............................................27877
178.345-10  (b)(3) revised.........................................27877
178.345-11  Revised................................................27877
178.346-1  (d)(8) amended..........................................27877
178.347-1  (d)(8) amended..........................................27877
178.348-1  (e)(2)(viii) amended....................................27877
178.352-6  (a)(3) amended..........................................66287
178.358-5  (b)(5) amended..........................................66287
178.360-4  Redesignated from 178.34-4..............................66284
178.362-6  (b) amended.............................................66287
178.503  (a)(9) removed; (a)(10) redesignated as (9); (a) 
        introductory text and (7) revised; new (a)(10) added; 
        (a)(1), (2), (5)(i), (8), (9) and (b) amended..............66284
178.504  (b)(4) and (5) amended....................................66284
178.505  (b)(3) and (4) amended....................................66284
178.506  (b)(3) and (4) amended....................................66285
178.520  (b)(3) amended............................................66285
178.521  (b)(2) amended............................................66285
178.601  (g)(2)(vii) removed; (g)(2)(viii) redesignated as (vii) 
        and (3) redesignated as (7); newly redesignated 
        (g)(2)(vii) revised; (c)(4) and (g)(3) through (6) added; 
        (c)(4)(iii), (iv), (e), (g) introductory text, (2)(vi), 
        (h) and (k) introductory text amended......................66285
178.602  (a) revised; (b), (d)(1), (2) and (e) amended.............66286
178.603  (a) introductory text and (f)(6) revised; (b), (c), 
        (e)(1)(iii), (2)(i)(C) and (2)(ii)(B) amended..............66286
178.604  (b)(2), (c)(1) and (d) amended............................66286
178.605  (a) and (b) amended.......................................66286
178.606  (a), (b), (c)(2)(ii) and (d) amended......................66286
178.608  (b0(2) and (c) amended....................................66286
178  Appendix B amended............................................66287
179.101-1  (a) table amended.......................................66287
179.105-7  (c) introductory text amended...........................66287
180.2  (b)(2) revised..............................................27877
180.405  (g)(3) and (h) introductory text amended..................27877
    (b), (h)(1) and (2) amended; (c)(1) introductory text, 
(2)(vii), (g)(1) and (2) revised...................................27878
180.407  (a)(2), (g)(1)(v) and (d)(1) introductory text amended; 
        (f)(1), (2), (g) heading, (g)(1)(iv) table and (h)(1) 
        revised; (g) introductory text added.......................27878
180.409  (b)(2) amended............................................66287
180.413  (c) and (d)(2)(iii) amended; (d)(1)(i), (ii), (iii) and 
        (3) revised................................................27879
180.415  Revised...................................................27879
    (b) amended....................................................66287
180.417  (a)(2) amended............................................27879

                                  1992

49 CFR
                                                                   57 FR
                                                                    Page
Chapter I
101  Removed.......................................................60728
101.1--101.7 (Subchapter A)  Removed...............................60728
107  Authority citation revised......................20428, 30630, 37902
    Interpretation.................................................48739
107.201  (a) and (c) revised.......................................20428
107.202  (d) added.................................................20428
107.203  (a) revised...............................................20428
107.205  (a) revised...............................................20428
107.209  (c) revised...............................................20428
107.211  Revised...................................................20428
107.215  (a) introductory text revised.............................20428
107.217  (a) and (c) revised.......................................20429
107.221  (c) revised...............................................20429
107.223  Removed; new 107.223 redesignated from 107.225 and 
        revised....................................................20429
107.225  Redesignated as 107.223 and revised.......................20429

[[Page 1090]]

107.315  (c) revised; (d) added....................................45453
107.503  (b)(1) and (c) amended......................................365
107.601--107.620 (Subpart G)  Added................................30630
    Clarification..................................................33416
107.601  Introductory text amended; (d) and (e) revised............37902
107.620  (b) revised...............................................37902
110  Added; eff. 10-19-92..........................................43067
171  Authority citation revised....................................37902
    Interpretation.................................................48739
171.1  (a)(3)(iv) added............................................52934
171.2  (a) and (b) revised.........................................30631
    Clarification..................................................33416
    (b) amended....................................................37902
171.4  Added.......................................................52934
171.6  (b)(2) table amended (OMB numbers)...........................1877
171.7  (a)(3) table amended; interim...............................60739
171.8  Amended................................20952, 45453, 52935, 59309
    Corrected......................................................47513
171.11  (d)(13) added..............................................52935
171.12  (b)(7) revised.............................................45453
171.12a  (b) introductory text revised.............................45453
    (b)(15) added..................................................52935
171.14  (b)(2) revised; (b)(3) through (5) redesignated as (b)(4) 
        through (6); new (b)(3) added..............................45443
    Heading, (a), (b) introductory text and (c)(2) introductory 
text revised.......................................................45454
    (b)(2) corrected...............................................47412
171.15  (a)(4) redesignated as (a)(5); new (a)(4) added............52935
172  Heading revised...............................................20952
    Interpretation.................................................48739
172.101  Table amended.................................1878, 45454-45457
    Appendix amended...............................................45458
        Table amended..............................45454--45457, 59309, 
                                                                   59310
    Appendix amended...............................................45458
    Table corrected................................................47513
    Table amended; appendix redesignated as appendix A and 
amended; appendix B added..........................................52935
    Table corrected; appendix A correctly designated...............54141
172.102  (c)(1), (3) and (7)(ii) amended...........................45458
    (c)(7)(ii) corrected...........................................47513
    (c)(5) amended.................................................52938
    (c)(3) amended.................................................59310
172.200  (b) introductory text amended.............................52938
172.202  (d) amended...............................................52938
172.203  (m)(1) amended............................................45458
    (c)(1)(i) amended; (l) added...................................52938
172.312  (a)(2) amended............................................45458
172.313  (a) correctly revised.....................................46624
172.322  Added.....................................................52938
172.324  (a)(1) amended............................................52939
172.330  (a) heading revised.......................................45458
172.405  (a) introductory text amended.............................45458
172.422  (a) revised...............................................45458
172.504  (c) introductory text, (f)(1) and (4) revised; (f)(9) and 
        (10) added.................................................45460
    (f)(9) amended.................................................59310
172.505  (a) revised...............................................45460
172.510  (c) amended; (e) revised..................................45460
172.519  (b)(3) amended............................................45460
172.526  (a)(4) amended............................................45460
172.560  (b) revised...............................................45460
172.700--172.704 (Subpart H)  Added................................20952
172.702  Heading revised; (d) correctly added......................22182
173  Interpretation................................................48739
173.1  (b) revised.................................................20953
173.2  Amended.....................................................45460
173.12  (d)(1) and (2) amended; (d)(3) added.......................52939
173.22  (a)(4) amended.............................................45460
173.23  (c) amended................................................45460
173.24a  (c)(1)(iii) amended.......................................45460
173.28  (e) added..................................................45460
173.29  (b)(3) amended.............................................52939
173.31  (c) Table 1 amended........................................45460
173.32  (a)(1), (3), (5) and (c) amended...........................45460
173.32c  (r) added.................................................45460
    (f) amended....................................................45461
173.33  (c)(1)(iii), (5) and (e) amended...........................45461
173.193  (d) amended...............................................45463
173.115  (b)(1) amended............................................45461
173.120  (b)(1) and (2) amended....................................45461
173.124  (a)(3)(ii) revised........................................45461
173.133  (a)(2)(ii) introductory text republished; (a)(2)(ii) 
        Figure 1 revised...........................................45461
    (a)(1) table and (2)(i) table amended..........................45463

[[Page 1091]]

173.140  Revised...................................................45463
    (b) revised....................................................52939
173.150  (a), (f) introductory text and (3)(vii) amended...........45463
    (c), (f)(2), (3) and (4) amended...............................52940
173.151  (c) amended...............................................52940
173.152  (c) amended...............................................52940
173.153  (c)(3) amended............................................52940
173.154  (d) revised...............................................45463
    (c) and (d) amended............................................52940
173.155  (c) amended...............................................52940
173.156  (b) amended...............................................45463
173.159  (b)(3) through (6) added; (c) introductory text revised 
                                                                   45463
173.166  Added......................................................1878
173.193  (d) amended...............................................45463
173.211  (c) amended...............................................45463
173.225  (e)(2) amended; (e)(3) introductory text, (i), (ii), 
        (iii), (v) and (iv) redesignated as (e)(3)(i) introductory 
        text, (A), (B), (C), (ii) and (4)..........................45463
173.227  (b) introductory text amended.............................45463
173.244  Heading revised...........................................45463
173.302  (a)(5)(iii) amended; (h) revised..........................45463
173.304  (f)(1) amended; (g) revised...............................45463
173.314  (c) introductory text revised.............................45463
    (c) table amended..............................................45464
    (c) table corrected............................................47513
173.315  (a) table, (d) and (i)(12) amended........................45464
173.336  Heading and introductory text revised.....................45464
173.421-2  (b)(1)(i) and (2)(i) amended............................52940
173.425  (b)(8) amended............................................52940
174  Interpretation................................................48739
174.7  Revised.....................................................20953
174.25  (a)(2) table amended.......................................45464
    (b)(5) added...................................................52940
174.55  (c) amended................................................45464
174.61  (c) amended................................................45464
174.81  (d) table and (e)(5) amended; (f) table revised............45464
    (d) table amended..............................................59310
174.82  (a) amended................................................45464
174.85  (b) amended................................................45464
175  Interpretation................................................48739
175.20  Revised....................................................20953
176  Interpretation................................................48739
176.13  Revised....................................................20954
176.70  Added......................................................52940
176.83  (c)(2)(i)(A) and (B) amended...............................45465
176.600  (d) amended...............................................45465
177  Authority citation revised....................................45465
    Interpretation.................................................48739
177.800  Revised...................................................20954
177.805  (a) designation removed...................................45465
177.816  Revised...................................................20954
177.825  (d) revised...............................................20954
177.848  (f) table revised; (d) table and (e)(5) amended...........45465
    (f) table corrected............................................47513
    (d) table amended..............................................59310
177  Appendix B corrected..........................................47513
178.270-5  (a), (c) and (d) amended................................45465
178.337-1  (b) amended.............................................45465
178.337-11  (a)(4)(i)(B) amended...................................45465
178.345-2  (a)(2) amended..........................................45465
178.345-11  (a) and (b)(1)(iii) amended; (b)(2) and (c) revised....45465
178.507  (a) amended...............................................45465
178.601  (h) amended...............................................45465
178.603  (a) introductory text and table amended...................45465
178.606  (c)(1) amended; (d) removed...............................45465
178  Appendix B amended............................................45466
      Appendix B; technical correction.............................47513
179.101-1  (a) table amended.......................................45466
179.200-18  (b)(4) removed.........................................45466
180.403  Amended...................................................45466
180.405  (g)(2) amended............................................45466
180.407  (d)(2)(vii) removed; (d)(2)(viii) amended.................45466
180.409  (b) introductory text revised.............................45466
180.413  (a) introductory text amended...............................365
    (d)(2)(v) correctly revised....................................45466
180.415  (b) and (c) amended.......................................45466

                                  1993

49 CFR
                                                                   58 FR
                                                                    Page
Chapter I
101 (Subchapter A)  Heading added..................................33304

[[Page 1092]]

106--110 (Subchapter B)  Heading transferred to 130.1 through 
        130.33; new Subchapter A heading added.....................33304
106  Authority citation revised....................................33304
    Transferred to Subchapter A....................................33304
    Meeting........................................................33918
106  Appendix A amended............................................33304
107  Filing requirements...........................................10985
    Authority citation revised..............................33304, 51527
    Transferred to Subchapter A....................................33304
    Meeting........................................................33918
    Clarification..................................................53626
107.117 (a) amended................................................51527
107.101--107.123 (Subpart B) Appendix B amended....................51527
107.202 (d) amended................................................51527
107.315 (c) and (d) amended........................................51527
107.327 (a)(1)(iii) amended........................................51527
107.331  (d) amended...............................................50500
107.502  (f)(2) amended; interim...................................46873
107.601  (e) revised...............................................12545
107.606 (d) amended................................................51527
107.616  (b) amended...............................................12545
107.620  (a)(1) amended; (a)(2) removed; (a)(3) redesignated as 
        (a)(2).....................................................12545
110  Transferred to Subchapter A...................................33304
    Meeting........................................................33918
130.1--130.33 (Subchapter B)  Heading transferred from 106-110 and 
        revised....................................................33304
    Meeting........................................................33918
171  Authority citation revised.......................6870, 33305, 51527
    Filing requirements............................................10985
    Meeting........................................................33918
    Policy statement...............................................47650
    Clarification..................................................53626
171.1  (a)(3)(v) added..............................................6870
    Regulation at 58 FR 6870 comment period extended...............21260
    (a)(3)(v) removed..............................................33305
171.2  (c) and (d)(3) amended......................................33305
171.5  Added........................................................6870
    Regulation at 58 FR 6870 comment period extended...............21260
    Removed........................................................33305
171.6 (b)(2) table amended.........................................51527
171.7  Amended.....................................................50230
    (a)(3) table amended...........................................51528
171.8  Amended..........................6870, 33305, 50230, 50500, 51528
    Regulation at 58 FR 6870 comment period extended...............21260
171.9 (b)(4) amended...............................................51528
171.11  (d)(14) added...............................................6870
    Regulation at 58 FR 6870 comment period extended...............21260
    (d)(14) removed................................................33305
171.12  Regulation at 58 FR 6870 comment period extended...........21260
    (b)(17) added...................................................6870
    (b)(17) removed................................................33305
171.12a  Regulation at 58 FR 6871 comment period extended..........21260
    (b)(16) added...................................................6871
    (b)(16) removed................................................33305
171.14  (b)(3) removed; (b)(5) and (6) redesignated as (b)(6) and 
        (7); new (b)(5) added......................................12183
    (b)(5) removed; (b)(6)(iii) added..............................66303
171.15  Regulation at 58 FR 6871 comment period extended...........21260
    Note revised.............................................6871, 33305
    Authority citation removed.....................................51528
172  Authority citation revised................6871, 33305, 50501, 51528
    Meeting........................................................33918
    Policy statement...............................................47650
172.101  Table amended...3348, 33305, 50232, 50235, 50493, 50501, 51528, 
                                                                   51529
    Table corrected.................................................8821
    (c)(12)(i) revised; (c)(12)(ii) amended........................50231
    Appendixes A and B amended.....................................51531
172.102  (c)(1), (2), (3) and (7)(ii) amended......................50235
    (c)(1), (3) and (5) amended....................................51531
172.202 (a)(2) amended.............................................51531
172.203  (m)(1) amended............................................45458
    (g)(3) amended..................................................3348
    (o) added.......................................................6871
    Regulation at 58 FR 6871 comment period extended...............21260
    (o) removed....................................................33305
    (k) introductory text, (3), (4)(iii) and (iv) amended..........51531
172.325  Revised....................................................3348
172.400a  (a)(1) introductory text amended.........................50501
    (a)(6) amended.................................................51531

[[Page 1093]]

172.401  (a) introductory text revised; (d) added..................50501
172.406 (a)(2) and (e)(1) amended..................................51531
172.525 (b) amended................................................51531
172.526 (b) amended................................................51531
172.556 (b) amended................................................51531
172.704  (a)(1), (2), (c)(1)(i) and (ii) revised....................5851
173  Authority citation revised..............................6871, 51531
    Clarification..................................................53626
    Meeting........................................................33918
    Policy statement...............................................47650
173.2 Table amended................................................51531
173.3 (c) introductory text amended................................51531
173.4 (a) introductory text, (2) introductory text text and (11) 
        amended....................................................51531
173.7  (b) revised.................................................50501
    (a) introductory text amended..................................51532
173.10 (d) and (e) amended.........................................51532
173.21 (b) and (j) amended.........................................51532
173.22  (a)(2)(iv) amended.........................................33305
    (a)(3)(i) amended..............................................51532
173.24a  (b)(4)(i) amended.........................................51532
173.25 (a) introductory text amended...............................51532
173.31  (b)(4) added...............................................50501
    (c)(9) amended.................................................51532
173.32  (e)(5) added...............................................50501
173.33 (c)(4) and (d)(1) revised...................................12905
173.34  (e) table amended; (e)(15)(i) revised; (e)(18) added.......50501
    (d)(3) revised.................................................50235
    (e)(16) introductory text and (v) amended......................51532
173.54  (l) added..................................................50236
173.56 (b)(2) introductory text and (i) amended....................51532
173.57 (a) introductory text amended...............................51532
173.62  (c) table amended..........................................50502
    (b) table amended..............................................50236
    (b) amended....................................................51532
173.63  (a) introductory text amended; (b) removed.................50236
173.115  (a) amended...............................................50236
    (a) introductory text and (2) amended..........................51532
173.124  (a)(1)(ii)(A) amended.....................................33305
    (b)(2) amended.................................................51532
173.127 (a) amended................................................51532
173.128 (a) introductory text amended..............................51532
173.132 (b)(1) amended.............................................51532
173.133 (b)(1)(ii) amended.........................................51532
173.136 (a) introductory text amended..............................51532
173.140  (b) revised.........................................6871, 33305
    Regulation at 58 FR 6871 comment period extended...............21260
173.150  (a), (f) introductory text and (3)(vii) amended...........45463
    (f)(3)(viii) and (4) introductory text revised...........6871, 33305
    Regulation at 58 FR 6871 comment period extended...............21260
173.151 (b)(2) amended.............................................51532
173.155  (c) amended...............................................52940
    (d) added.......................................................6871
    Regulation at 58 FR 6871 comment period extended...............21260
    (d) removed....................................................33305
173.159  (d)(1) and (2) redesignated as (d)(3)(i) and (ii); (d) 
        introductory text revised; new (d)(1), (2) and (3) 
        introductory text added....................................50502
    (g)(1) amended.................................................51532
173.163  Amended...................................................50236
173.185  (l) added.................................................50502
    (a), (g)(1), (i) introductory text and (j)(1) revised; (m) 
added..............................................................50236
173.225 (b) table amended..........................................51532
173.226  (b) introductory text, (4)(i)(A), (B), (ii)(B) and (5) 
        amended; (b)(4)(i)(C), (D), (ii)(C) and (D) added..........50236
173.227  (b)(3)(i)(D), (ii)(C), (4) and (c) amended................50236
173.247  Revised....................................................3349
173.247 (g)(1)(ii) and (iii)(B) amended............................51532
173.301 (g)(5) amended.............................................51532
173.304  (a)(2) table amended; (h) added...........................50502
    (d)(3)(i) amended..............................................51532
173.306  (a)(3)(i) and (b)(1) introductory text amended; (h)(3) 
        revised....................................................50236
    (c) removed....................................................50503
    (i) introductory text amended..................................51532
173.309  Added.....................................................50503
173.314  (g)(4) added..............................................50503
    (c) table amended..............................................50236

[[Page 1094]]

173.315  (a) table amended..................................50237, 51532
173.318  (g) introductory text amended.............................50503
    (b)(3)(ii) amended.............................................51532
173.323  (b)(5) amended............................................50237
    (f) amended....................................................51532
173.417 (b)(2)(ii) Table 5 amended.................................51533
173.423  Table 7 amended...........................................50503
173.433 (b)(4) amended.............................................51533
173 Appendixes B, D and E amended..................................51533
174  Authority citation revised.......................6871, 33305, 51533
    Meeting........................................................33918
    Policy statement...............................................47650
174.1 Amended......................................................51533
174.25  (b)(1)(i) amended; (b)(6) added.............................6871
    Regulation at 58 FR 6871 comment period extended...............21260
    (b)(6) removed.................................................33305
    (a)(2)(ii) amended.............................................51533
174.55 (c) amended.................................................51533
174.81  (d) table amended; (e)(3) revised..........................50237
174.82 (a) amended.................................................51533
174.83  (b) revised; (c) redesignated as (f); new (c), (d) and (e) 
        added......................................................50237
174.290 Heading amended............................................51533
174.430 Amended....................................................51533
174.700 (c) table amended..........................................51533
175 Authority citation revised.....................................51533
175.10  (a)(16) amended; (a)(23) and (24) added....................50493
    (a)(7), (12) introductory text, (12)(v), (19) and (20) 
revised; (a)(12)(ii) amended; (a)(12)(vi) and (25) added...........50504
175.25  Heading and (a) introductory text revised..................50505
175.26  Added......................................................50505
175.78  (a) introductory text revised..............................50505
175.320 (a) table and (c) introductory text amended................51533
175.700  (b) amended...............................................50505
175.701  (b)(1) amended; (b)(2) revised; (b)(3) added..............50494
175.702  (b)(2)(i) revised.........................................50494
176  Meeting.......................................................33918
    Authority citation revised.....................................51533
176.5 (b) introductory text amended................................51533
176.70  (a) amended..........................................6872, 33306
    Regulation at 58 FR 6872 comment period extended...............21260
176.83 (f)(4) amended..............................................51533
176.100 Amended....................................................51533
176.118 (b) amended................................................51533
176.410 (c)(2) amended.............................................51533
177 Authority citation revised.....................................51533
177.33  (c)(4) and (d)(1) amended..................................12905
177.804  Revised...................................................50505
177.806  (b) revised...............................................50505
177.816  (a) and (4) amended; (c) revised; (d) added................5852
177.825 Revised....................................................51533
177.834 (j) amended................................................51533
177.838 (g) amended................................................51533
177.848  (d) table amended; (e)(3) revised.........................50237
177.857 (d) amended................................................51533
177.858 (b)(1) amended.............................................51533
178  Meeting.......................................................33918
    Authority citation revised.....................................51533
    Clarification..................................................53626
178.33-2  (b) amended..............................................50237
178.33a-2  (b) amended.............................................50237
178.39-9  (a) amended..............................................51533
178.39-14  (b) amended.............................................51534
178.46-12  (e) redesignated as (c).................................51534
178.53-9  (b) amended..............................................51534
178.55-20  (a) introductory text amended...........................51534
178.56-3  Amended..................................................51534
178.56-11  (a) amended.............................................51534
178.60-24  (a) amended.............................................51534
178.61-8  (c)(2) amended...........................................51534
178.61-20  (b) amended.............................................51534
178.251-2  (a) revised.............................................50507
178.270-5  (d) amended.............................................51534
178.270-11  (d)(1) amended.........................................51534
178.320  Amended...................................................33306
178.337-1  (f) amended.............................................51534
178.337-6  (a) amended.............................................12905
178.337-16  (b)(2) amended.........................................51534
178.337-18  (a) amended............................................33306
178.338-10  (c) amended............................................51534
178.338-19  (c) amended............................................51534
178.345-14  (b)(11) amended........................................51534
178.345-15  (a) amended............................................33306
178.352-2  (a) amended.............................................51534
178.352-6  (a)(2) amended..........................................51534
178.362-2  (e)(5) amended..........................................51534
178.516  (b)(3)(i) amended.........................................51534
178.518  (a)(2) amended............................................51534

[[Page 1095]]

178.600  Amended...................................................51534
178.603  (a) table amended.........................................51534
178.605  (d)(1) amended............................................51534
179  Policy statement..............................................47650
    Authority citation revised.....................................51534
179.100-7  (c) redesignated as (d) ; new (c) added.................50237
179.100-10  (c) added..............................................50238
179.101-1  (a) table amended.......................................51534
179.105-4  (a) introductory text amended...........................51534
179.203-1  (a) amended.............................................51534
179.400--179.500-18 (Subpart F)  Corrected.........................51534
180  Meeting.......................................................33918
    Authority citation revised.....................................51534
180.3  (a), (b)(3) and (5) amended.................................33306
180.405  (b) and (c)(1) table amended..............................12905
    (f)(2) introductory text amended...............................51534
180.407  (f)(1)(i)(C) amended......................................51534
180.413  (d)(1)(i), (ii) and (iii) amended.........................12905
    (a)(1) and (2) amended.........................................33306
180.417  (a)(3) amended............................................12905

                                  1994

49 CFR
                                                                   59 FR
                                                                    Page
Chapter I
106  Authority citation revised....................................49130
106.3  (b) revised; (c) added; authority citation removed..........49130
106.17  Authority citation removed.................................49130
106  Appendix A removed............................................49130
107  Filing requirements...........................................22132
    Authority citation revised.....................................49130
107.3  Amended.....................................................49130
107.13  Authority citation removed.................................49130
107.101  Amended...................................................49130
107.103  (a) and (b)(10) amended...................................49130
107.109  Authority citation removed................................49130
107.111  (b)(3) amended............................................49130
107.119  Authority citation removed................................49130
107.201--107.227 (Subpart C)  Authority citation removed...........49131
107.201  (a)(1), (2) and (c) amended...............................49130
107.202  (a), (b) and (c) revised..................................49130
107.203  (a) revised; (b)(3) and (c) amended.......................49131
107.209  (b) and (e) amended.......................................49131
107.215  (a) introductory text, (1), (b)(4), (5) and (6) amended 
                                                                   49131
107.219  (c)(1) and (2) amended....................................49131
107.221  (b) introductory text and (e) amended.....................49131
107.299--107.339 (Subpart D)  Authority citation removed...........49131
107.299  Amended...................................................49131
107.301  Amended...................................................49131
107.305  (a) and (b) amended.......................................49131
107.307  (a) amended...............................................49131
107.309  (a) amended...............................................49131
107.311  (a) and (b)(1) amended....................................49131
107.329  (a) and (b) amended.......................................49131
107.333  Amended...................................................49131
107.335  Amended...................................................49131
107.337  Amended...................................................49131
107.339  Amended...................................................49131
107.401--107.405 (Subpart E)  Authority citation removed...........49131
107.403  (c) amended...............................................49131
107.502  (f)(1) corrected; CFR correction..........................30530
107.503  (c) amended...............................................49131
107.601  (e) amended...............................................32932
107.606  (f) amended...............................................32932
107.608  (a) revised...............................................32932
107.620  (c) redesignated as (d); new (c) added....................32932
110  Authority citation revised....................................49131
110.20  Amended....................................................49132
110.30  (a) introductory text revised; (c) introductory text 
        amended....................................................49132
110.60  (a) introductory text amended..............................49132
110.120  Amended...................................................49132
130  Authority citation revised....................................49132
171  Filing requirements...........................................22132
    Authority citation revised..............................48763, 49133
171.1  (c) amended; authority citation removed.....................49132
171.2  (f)(1), (2), (g)(1) and (2) amended; authority citation 
        removed....................................................49132

[[Page 1096]]

171.3  (b)(3)(iii) note revised....................................49132
171.7  (a)(3) table amended..........................28490, 38052, 49132
    (a)(3) table amended.............................55172, 64744, 67405
171.8  Amended.....................................................38052
    Amended; authority citation removed............................49132
    Amended........................................................67406
171.11  (d)(5) amended.............................................67406
    (d)(6)(i) amended; authority citation removed..................49132
171.12  (b) introductory text amended..............................67406
    (b)(5) revised.................................................38052
    (d)(1) amended.................................................49132
171.14  (b)(6)(iii) removed; (b)(6) and (7) redesignated as (b)(5) 
        and (8); new (b)(6) and (7) added..........................48763
    Regulation at 59 FR 48763 eff. date confirmed as 9-22-94.......53116
    Revised........................................................67406
171.16  Authority citation removed.................................49132
171.18  Authority citation removed.................................49132
172  Authority citation revised....................................48549
172.101  Table amended......................................28491, 38052
    Appendix A amended......................................31823, 31824
    Table corrected.........................................35411, 37537
    Regulation at 59 FR 31823 eff. date for lead sulfide extended 
to 11-29-94........................................................44938
    (c)(8) introductory text, (ii), (d)(4), (g) and table amended 
                                                                   49132
    Appendix amended...............................................49133
    (c)(3), (13) and (k)(1) through (5) revised; (g) amended.......67407
    (c)(11) introductory text and (12)(iii) amended................67408
    Table revised..................................................67409
    appendix B amended.............................................67485
172.102  (c)(1) and (3) introductory text amended..................28493
    (c)(3) amended..........................................38064, 48549
    (c)(1), (3) and (7)(ii) amended................................49133
    (c)(1), (2) and (3) amended....................................67485
172.201  Authority citation removed................................48549
172.202  Authority citation removed................................48549
172.203  Authority citation removed................................48549
    (e)(2), (h)(2)(i), (k) introductory text and (3) amended.......49133
172.203  (k)(3) amended; (l)(3) and (o) added......................67486
    (m)(1) amended.................................................67487
172.204  Authority citation removed................................48549
    (a)(2) amended.................................................67487
172.205  Authority citation removed................................48549
172.310  Authority citation removed................................48549
172.320  (b) amended...............................................67488
172.322  (b) and (e)(2) revised....................................38064
172.325  (c) amended...............................................67489
172.332  Authority citation removed................................48549
172.334  (b)(3) amended............................................49133
172.400a  (c) and (d) added........................................67490
172.401  Authority citation removed................................48549
172.402  (a)(1) revised; (a)(2) amended; (f) and (g) added.........67490
172.403  Authority citation removed................................48549
172.411  (d) amended...............................................67490
172.416  (b) amended...............................................67490
172.420  (a) illustration corrected; CFR correction................30530
172.422  (a) illustration corrected; CFR correction................30530
172.430  (b) amended...............................................67490
172.505  (a) amended...............................................49133
172.510  Authority citation removed................................48549
172.512  Authority citation removed................................48549
172.514  (c)(3) amended; (c)(4) added..............................38064
172.521  (a) illustration corrected; CFR correction................30530
172.527  Authority citation removed................................48549
172.540  (b) amended...............................................67490
172.546  (a) illustration corrected; CFR correction................30530
172.547  (b) amended...............................................67490
172.554  (b) amended...............................................67490
172.556  (a) illustration corrected; CFR correction................30530
172.600  (c)(2) amended............................................49133
172.604  (a)(3)(i) amended.........................................49133

[[Page 1097]]

172  Appendix A authority citation removed.........................48549
    Appendix A amended.............................................49133
173  Authority citation revised....................................49133
173.1  Authority citation removed..................................49133
173.2a  (b) table amended..........................................67490
173.7  Authority citation removed..................................49133
173.9  (e) added...................................................67490
173.10  Authority citation removed.................................49133
173.11  (b)(4) amended; authority citation removed.................49133
173.12  (d)(1) and (2) amended; (d)(3) removed.....................49133
173.21  (f)(2) amended.............................................67490
173.22  Authority citation removed.................................49133
    (a)(2)(iii) and (iv) redesignated as (a)(2)(iv) and (v); new 
(a)(2)(iii) added; (a)(3)(i) and (4) revised.......................67491
173.23  Authority citation removed.................................49133
173.24  (d) amended................................................38064
    (c)(1) and (e)(4)(ii) amended; (d) revised.....................67491
173.25  (a) introductory text revised; (b) added...................67491
173.27  (f) Table 2 and (g)(1) amended.............................49133
173.28  (b)(4) revised; (b)(7) and (c)(4) added....................67491
    (c)(1)(i) and (3) amended......................................67492
173.31  Authority citation removed.................................49133
173.32  (d) and (e)(1)(ii) revised.................................38064
    (g) and (q) introductory text amended..........................49133
173.33  (c)(4) and (d)(1) amended...................................1786
    Regulation at 59 FR 1786 effective date confirmed..............12861
    (c)(1)(iii) and (iv) amended...................................49133
    (d)(3) amended; (h) added......................................55172
    (c)(5) amended.................................................67492
173.34  (e)(15)(i) revised; (v) and (17)(ii) amended...............28493
    (e)(18)(i) amended.............................................49133
173.35  Added......................................................38064
173.52  (b) Table 1 amended........................................67492
173.59  Amended....................................................67492
173.60  (b)(15) added..............................................67492
173.62  (a), (c) table and (d) revised; (b) table amended..........67492
    (e) amended....................................................67506
173.115--173.156 (Subpart D)  Heading amended......................49133
173.115  Heading and (b) introductory text revised.................67506
173.116  (a) table amended.........................................49133
173.120  (a) revised; (b)(2) amended...............................67506
    (c)(1)(i)(A), (B) and (ii)(A) amended..........................67507
173.121  (b)(1)(ii) amended; (b)(1)(iv) table and (2)(i) revised 
                                                                   67507
173.124  Heading and (a)(2) revised................................67507
173.128  (a) introductory text, (c)(2) and (3) amended; (b)(7) 
        revised; (c)(4) removed; (d) redesignated as (e); new (d) 
        added......................................................67508
173.133  (b)(1)(iv) table amended..................................49133
173.136  (a) revised...............................................67508
173.137  Introductory text amended; (a), (b) and (c) revised.......67508
173.150  Heading and (d) revised; (a), (b) introductory text and 
        (3) amended................................................67508
173.152  (b)(3) revised............................................67508
173.158  (f)(3) added..............................................67509
173.164  (b), (c) and (d) redesignated as (c), (d) and (e); new 
        (c) introductory text revised; (a)(1), (2) and new (c)(1) 
        amended; new (b) added.....................................67509
173.166  Heading, (b) and (d)(1) revised; (a), (c), (d)(2) and (f) 
        amended....................................................67509
173.171  (a) amended...............................................67509
173.173  Heading and (b) introductory text revised.................67509
173.185  Revised...................................................67509
173.189  Added.....................................................67511
173.196  (f) amended...............................................67511
173.201  (b) and (c) amended.......................................67518
173.202  (b) and (c) amended.......................................67518
173.203  (b) and (c) amended.......................................67518
173.211  (c) amended...............................................67511
    (b) and (c) amended............................................67518
173.212  (c) amended...............................................67511
    (b) and (c) amended............................................67518

[[Page 1098]]

173.213  (c) amended...............................................67511
    (b) and (c) amended............................................67518
173.217  (a) amended...............................................49133
173.224  Revised...................................................67511
173.225  (b) table amended.........................................28493
    (b) table amended; (e)(5) added................................38065
    (e)(2) amended.................................................55172
    (a) amended; (b) table and (e)(3)(ii) revised; (c)(5) added....67513
173.226  (b)(4)(ii)(A) amended.....................................49134
173.226  (c)(1) amended............................................67517
173.227  Heading amended...........................................49134
173.230  (d) amended...............................................49134
173.240  (d) added.................................................38067
173.241  (d) added.................................................38067
173.242  (d) added.................................................38067
173.243  Heading revised; (d) and (e) added........................38068
    (b)(2) amended.................................................49134
173.247  (g)(1)(iii)(B) revised....................................28493
173.301  (g) introductory text amended.............................49134
173.302  (h) amended...............................................28493
    Authority citation removed.....................................49133
173.304  (g) amended...............................................28493
    Authority citation removed.....................................49133
    (a)(2) table amended...........................................67517
173.306  (a)(3) introductory text amended..........................28493
    Authority citation removed.....................................49133
    (a)(3)(v) revised; (a)(4) added................................67517
173.309  (a)(1), (3)(iii), (4)(ii) and (b)(2) amended..............49134
173.315  Authority citation removed................................49133
    (a) table amended..............................................49134
    (o)(1) revised; (o)(2) amended.................................55172
173.316  Authority citation removed................................49133
173.318  Authority citation removed................................49133
    (b)(1)(ii)(A), (2)(i)(A), (B), (6)(ii) and (g)(2)(i) amended 
                                                                   49134
173.319  Authority citation removed................................49133
173.401--173.478 (Subpart I)  Authority citation removed...........49134
173.420  (a)(2)(i) and (b) amended.................................28493
173.425  Authority citation removed................................49133
173  Appendixes A and F amended....................................49134
    Appendix A removed; Appendixes E and F amended; appendix H 
added..............................................................67517
174  Authority citation revised....................................48549
174.25  (c) amended................................................28493
    Authority citation removed.....................................48549
174.61  Heading revised; (a) amended; (c) removed..................64744
174.63  (b) amended................................................49134
    Revised........................................................64744
174.67  Authority citation removed.................................48549
174.83  (b) introductory text revised..............................48549
174.100  (b) amended...............................................49134
174.204  Authority citation removed................................48549
175  Authority citation revised....................................49134
175.3  Authority citation removed..................................49134
175.10  Authority citation removed.................................49134
    (a)(4) introductory text and (13) revised; (a)(12) 
introductory text amended; (a)(17) removed; (a)(26) added..........67518
175.20  Authority citation removed.................................49134
175.30  Authority citation removed.................................49134
175.33  Authority citation removed.................................49134
    (a)(1) introductory text, (6) and (7) amended..................67518
175.75  Authority citation removed.................................49134
175.78  Authority citation removed.................................49134
175.79  Authority citation removed.................................49134
175.81  Authority citation removed.................................49134
175.85  Authority citation removed.................................49134
175.88  Authority citation removed.................................49134
175.90  Authority citation removed.................................49134
175.305  Authority citation removed................................49134
175.320  (a) table amended; authority citation removed.............49134

[[Page 1099]]

175.630  Authority citation removed................................49134
175.700  (b) amended...............................................49134
175.701  Authority citation removed................................49134
175.702  Authority citation removed................................49134
175.703  Authority citation removed................................49134
175.705  Authority citation removed................................49134
176  Authority citation revised....................................49134
176.11  Authority citation removed.................................49134
176.13  (c) amended................................................49134
176.27  (c) added..................................................67518
176.30  Authority citation removed.................................49134
176.39  Authority citation removed.................................49134
176.76  Authority citation removed.................................49134
    (i) added......................................................67519
176.83  (c)(2)(ii) illustration and (iii) illustration corrected; 
        CFR correction.............................................30530
    (c)(2)(iv) illustration and (v) illustration corrected; CFR 
correction.........................................................30531
177.841  (e)(3) amended............................................67519
176.95--176.99 (Subpart F)  Authority citation removed.............49134
176.415  (b)(2) amended............................................49134
176.600  (d) amended...............................................49134
176.700  Authority citation removed................................49134
177  Authority citation revised....................................49134
177.818  Authority citation removed................................49134
177.834  Authority citation removed................................49134
177.835  Authority citation removed................................49134
177.838  (g) and (h) amended.......................................49134
177.839  (d) introductory text amended.............................49134
177.840  (d) amended; authority citation removed...................49134
177.841  (d) introductory text amended.............................49134
177.842  Authority citation removed................................49134
177.843  Authority citation removed................................49134
177.848  (e)(6) amended............................................49134
177.860  (a) introductory text and (b) amended.....................49135
178  Authority citation revised....................................49135
178.2  (a) revised; (e) added......................................67519
178.3  (a) introductory text and (b) revised; (a)(2) and (4) 
        amended; (a)(5) added......................................67519
178.36-3  Authority citation removed...............................49135
178.37-3  Authority citation removed...............................49135
178.37-5  Authority citation removed...............................49135
178.38-3  Authority citation removed...............................49135
178.39-3  Authority citation removed...............................49135
178.42-3  Authority citation removed...............................49135
178.44-3  Authority citation removed...............................49135
178.45-3  Authority citation removed...............................49135
178.47-3  Authority citation removed...............................49135
178.50-3  Authority citation removed...............................49135
178.51-3  Authority citation removed...............................49135
178.53-5  Authority citation removed...............................49135
178.55-3  Authority citation removed...............................49135
178.56-3  Authority citation removed...............................49135
178.57-3  Authority citation removed...............................49135
178.58-3  Authority citation removed...............................49135
178.58-5  Authority citation removed...............................49135
178.59-3  Authority citation removed...............................49135
178.60-3  Authority citation removed...............................49135
178.61-3  Authority citation removed...............................49135
178.65-3  Authority citation removed...............................49135
178.68-3  Authority citation removed...............................49135

[[Page 1100]]

178.245-5  (b) amended.............................................49135
178.251  Removed...................................................38068
178.251-1  Removed.................................................38068
178.251-2  Removed.................................................38068
178.251-3  Removed.................................................38068
178.251-4  Removed.................................................38068
178.251-5  Removed.................................................38068
178.251-6  Removed.................................................38068
178.251-7  Removed.................................................38068
178.252  Removed...................................................38068
178.252-1  Removed.................................................38068
178.252-2  Removed.................................................38068
178.252-3  Removed.................................................38068
178.253  Removed...................................................38068
178.253-1  Removed.................................................38068
178.253-2  Removed.................................................38068
178.253-3  Removed.................................................38068
178.253-4  Removed.................................................38068
178.253-5  Removed.................................................38068
178.255-5  (b) amended.............................................49135
178.255-12  (a) amended............................................49135
178.270-9  Amended.................................................49135
178.270-11  (b)(1) introductory text and (d)(2) amended............49135
178.271-1  (a) amended.............................................49135
178.272-1  (a) amended.............................................49135
178.337-1  (b) and (d) amended.....................................49135
    (a)(3), (e)(1) and (2) amended.................................55172
178.337-2  (a)(1) and (c) amended..................................49135
178.337-3  (c)(3)(i) amended.......................................49135
178.337-9  (b)(7)(i) removed; (b)(7)(ii) and (iii) redesignated as 
        (b)(7)(i) and (ii).........................................55173
178.337-11  (a)(2)(i) amended......................................49135
    (a)(2) introductory text revised...............................55173
178.337-18  (a)(3) amended.........................................49135
178.338-1  (c)(1) amended..........................................49135
178.338-9  (c)(2) revised..........................................55173
178.338-11  (c) introductory text amended..........................55173
178.345-1  (c) amended; (i)(2) revised.............................55173
178.345-3  (e) and (g) introductory text amended...................49135
    (b) and (c) revised............................................55173
    (d) removed; (e), (f) and (g) redesignated as (d), (e) and 
(f); (a)(1), (3) and new (d) amended...............................55174
178.345-5  (f) added...............................................55175
178.345-6  (a) and (b) amended.....................................55175
178.345-7  (a)(2) amended..........................................49135
178.345-8  (a)(3), (b) introductory text, (1), (c) introductory 
        text, (1) and (d)(3) revised; (e) added....................55175
178.345-10  (b)(3)(i) and (ii) revised.............................55175
178.345-13  (c) heading added......................................55176
178.345-14  (b)(6), (15), (c)(3), (6) and (7) amended..............49135
    (d) amended....................................................55176
178.345-15  (b)(2) amended; (e) added..............................55176
178.346-1  (d)(9) and (10) added...................................55176
178.346-2  (a) designation removed; amended........................55176
178.346-10  (b)(1) and (2) amended; (b)(3) added; (c)(1) and 
        (d)(1) revised.............................................55176
178.346-13  (c) revised............................................55176
178.347-2  (a) and Tables I and II amended.........................49135
178.348-10  (d)(3) amended.........................................49135
178.350-3  (b) amended.............................................49135
178.502  (a) introductory text, (1) introductory text and (3) 
        amended....................................................67519
178.503  (a)(9), (d)(2)(ii) illustration and (3) illustration 
        revised....................................................28493
    (d) redesignated as (e); (a) introductory text, (9), (10), (c) 
and new (e) illustration revised; (a)(11) and new (d) added........67519
    (e)(2) amended.................................................67521
178.505  (b)(1) amended............................................28494
178.506  (b)(1) amended............................................28494
178.508  (b)(2) amended............................................67521
178.509  (b)(4) amended............................................28494
178.511  (b)(1) amended............................................28494
178.512  (a)(1), (2) and (b)(2) revised; (a)(3) and (4) removed....67521
178.513  (b)(2) and (3) redesignated as (b)(3) and (4); new (b)(2) 
        added......................................................67521
178.516  (b)(1) and (2) amended; (b)(3)(iii), (4) and (5) 
        redesignated as (b)(4), (5) and (6)........................67521
178.521  (b)(2) amended............................................67521
178.522  (a)(9), (b)(4) and (5) amended; (a)(10) and (b)(3)(viii) 
        revised; (a)(11) and (b)(3)(ix) added......................67521
178.601  (g)(7) amended............................................28494

[[Page 1101]]

    (k) redesignated as (l); (b), (g)(2)(i), (vi) and new (l) 
revised; new (k) added.............................................67521
    (g)(2) introductory text, (5)(i) and (ii) amended..............67522
178.602  (c) amended...............................................67522
178.603  (a) introductory text and (c) amended; (f)(1) revised.....67522
178.604  (d) amended...............................................67522
178.605  (b) amended...............................................28494
178.606  (b) amended...............................................28494
178.606  (c)(1) amended............................................67522
178.700--178.710 (Subpart N)  Added................................38068
178.800--178.819 (Subpart O)  Added................................38075
178  appendix C added..............................................67522
179  Authority citation revised....................................49135
179.101-1  Authority citation removed..............................49315
179.102-1  Authority citation removed..............................49135
179.102-2  Authority citation removed..............................49135
179.102-4  Authority citation removed..............................49135
179.102-17  Authority citation removed.............................49135
179.105-7  (b) amended.............................................28494
    Authority citation removed.....................................49135
179.200-7  Authority citation removed..............................49135
179.200-14  Authority citation removed.............................49135
179.200-15  Authority citation removed.............................49135
179.200-27  Authority citation removed.............................49135
179.201-1  Authority citation removed..............................49315
179.201-7  Authority citation removed..............................49135
179.203-1  Authority citation removed..............................49135
179.203-2  Authority citation removed..............................49135
179.203-3  Authority citation removed..............................49135
179.220-7  Authority citation removed..............................49135
179.220-15  Authority citation removed.............................49135
179.400--179.500-18 (Subpart F)  Authority citation removed........49135
179.500-7  Authority citation removed..............................49135
180  Authority citation revised....................................49135
180.350--180.352 (Subpart D)  Added................................38079
180.403  Amended...................................................55177
180.405  (b) and (c)(1) table amended...............................1786
    Regulation at 59 FR 1786 effective date confirmed..............12861
    (f)(6) amended.................................................49135
    (f)(1)(iii) and (4) introductory text amended; (h) revised.....55177
180.407  (d)(4) amended............................................49135
    (c) table, (i)(4)(viii) and (ix) amended; (e)(1) and (h)(2) 
revised; (i)(5), (6) and (7) redesignated as (i)(6), (7) and (8); 
(i)(4)(x) and new (5) added........................................55177
    (d)(1)(ii), (e)(2)(ii) and (g)(1)(iv) amended; (e)(4) removed; 
(e)(5) redesignated as (e)(4)......................................55178
180.413  (d)(1)(i), (ii) and (iii) amended..........................1786
    Regulation at 59 FR 1786 effective date confirmed..............12861
    Revised........................................................55178
180.415  (b) amended...............................................49135
180.417  (a)(3) heading amended.....................................1786
    Regulation at 59 FR 1786 effective date confirmed..............12861

                                  1995

49 CFR
                                                                   60 FR
                                                                    Page
Chapter I
107.101--107.123 (Subpart B)  appendix A amended...................49108
107.201  (c) amended...............................................49108
107.311  (c) amended...............................................49108
107.335  Amended...................................................49108
107.299--107.339 (Subpart D)  appendix A Added.....................12141
107.601  (c) revised; eff. 7-1-96..................................27233
107.606  Revised; eff. 7-1-96......................................27233
171.7  (a)(3) table amended........................................40032
    (a)(3) table amended; eff. 7-1-96..............................49072
    (a)(3) table amended; eff. 4-1-96..............................50301

[[Page 1102]]

171.8  Amended; eff. 2-2-96........................................39609
    Amended.................................................48786, 49108
    Amended; eff. 4-1-96...........................................50302
171.10  (c)(2) table amended.......................................49108
    (c)(2) table amended; eff. 4-1-96..............................50302
171.11  (d)(6)(iii) revised; (d)(6)(iv) amended; eff. 4-1-96.......50302
171.12  (b)(5) amended.............................................49108
    (d) heading, introductory text and (4) revised; (d)(5) 
amended; (d)(6) added; eff. 4-1-96.................................50302
171.14  (b) introductory text amended..............................26799
    (a)(2)(ii), (b) introductory text, (1) and (2) amended.........26800
    Amended........................................................48786
171.15  (a)(3) and (b) introductory text amended...................48786
    (b) introductory text amended..................................49108
172.101  Table amended.................26800, 26804, 40032, 48786, 49109
    Table and appendix B amended...................................26805
    appendix A amended; eff. 2-2-96................................39609
    Table corrected................................................39991
    Table amended; eff. 7-1-96.....................................49072
    (i)(4) and table amended.......................................49108
    Table and appendix A amended...................................49110
    Table amended; eff. 4-1-96..............................50303, 50304
172.102  (c)(1) amended.....................................26805, 49110
    (c)(2) amended.................................................48787
    (c)(3) amended; eff. 7-1-96....................................49072
172.203  (d)(1), (4) and (7) revised; (d)(10) and (11) added; eff. 
        4-1-96.....................................................50304
172.204  (a)(2) revised............................................26805
172.308  (b) removed; (c) and (d) redesignated as (b) and (c); new 
        (c) amended................................................49110
172.310  Revised; eff. 4-1-96......................................50304
172.322  (d)(2)(i) amended.........................................49110
172.400a  (a)(1) introductory text amended.........................49110
172.402  (a)(2) table amended......................................26805
172.403  Heading, (b), (c), (d), (g)(1) and (2) revised; eff. 4-1-
        96.........................................................50305
172.407  (g) added; eff. 4-1-96....................................50305
172.504  (e) Table 1 amended; eff. 4-1-96..........................50305
172.507  (a) revised; eff. 4-1-96..................................50305
172.519  (g) added; eff. 4-1-96....................................50305
172.704  (a)(2)(i) amended.........................................49110
172.801--172.807 (Subpart I)  Added; eff. 4-1-96...................50305
172  appendix B added; eff. 4-1-96.................................50306
173  Petition denied...............................................56957
173.2a  (c)(3) revised.............................................48787
    (c)(5) amended; eff. 4-1-96....................................50307
173.4  (a)(1)(iv) and (b) revised; eff. 4-1-96.....................50307
173.23  (f) added..................................................17400
    (g) added......................................................26805
173.24  (c)(1) and (d)(2) introductory text amended................26805
173.24b  (d)(2) revised............................................40038
173.28  (b)(4) table corrected......................................7627
    (b)(2)(ii) amended; (b)(7) introductory text, (i) and (ii) 
revised; (b)(7)(iii) redesignated as (b)(7)(iv); new (b)(7)(iii) 
added..............................................................26805
    (b)(4) table amended...........................................26806
173.31  Revised; eff. 7-1-96.......................................49072
173.32  (e)(3) amended.............................................49110
173.34  (d)(3) and (7) amended.....................................49110
173.35  (j) amended; (l) added.....................................40038
173.62  (b) table and (c) table amended............................26806
    (c) table amended..............................................49110
173.134  Revised...................................................48787
173.150  (d)(2) amended............................................26806
    (b)(3) amended.................................................49110
173.159  (c)(3) amended............................................49110
173.164  (c)(1) and (5) amended....................................49110
173.185  (e)(6), (h)(1) and (j) amended............................26806
173.224  (b) table amended.........................................26806
    (b) introductory text amended..................................49110
173.225  (b) table amended.........................................26806
173.242  (d)(2)(i) amended.........................................40038
    (b)(1) amended.................................................49110
173.243  (d)(2) amended............................................40038
    (b)(1) amended.................................................49110
173.306  (a)(3)(v) amended.........................................26806
    (e)(1)(i) revised; (e)(1)(iii), (v) and (vi) amended...........40038
    (d)(3)(iii) amended............................................49110
173.314  Heading and (c) revised; (j) through (o) added; eff. 7-1-
        96.........................................................49074
173.319  (e) added; eff. 7-1-96....................................49075
    (a)(4)(iii) amended; eff. 7-1-96...............................49076

[[Page 1103]]

173.323  (c)(1) revised; eff. 7-1-96...............................49076
173.401--173.478  (Supbart I) Revised; eff. 4-1-96.................50307
173  appendix G removed............................................48787
174.67  (k) amended................................................49111
174.700  Revised; eff. 4-1-96......................................50331
174.705  Added; eff. 4-1-96........................................50332
174.715  Revised; eff. 4-1-96......................................50332
174.750  (a) revised; eff. 4-1-96..................................50332
175.45  (a)(3) amended.............................................49111
175.700  (b) and (c) revised; eff. 4-1-96..........................50333
175.703  (c) introductory text and (d) revised; eff. 4-1-96........50333
175.704  Added; eff. 4-1-96........................................50333
175.706  Added; eff. 4-1-96........................................50333
176.76  (h)(1) amended.............................................49111
176.83  (c)(2)(iv) amended.........................................49111
176.136  (a) amended...............................................49111
176.410  (b) amended...............................................49111
176.700  (a) removed; (c) revised; eff. 4-1-96.....................50333
176.703  Added; eff. 4-1-96........................................50333
176.704  Revised; eff. 4-1-96......................................50333
176.708  Table III redesignated as Table IV; (a) revised; (b) 
        through (f) added; eff. 4-1-96.............................50334
176.715  Revised; eff. 4-1-96......................................50334
177.827  Added; eff. 4-1-96........................................50334
177.842  Revised; eff. 4-1-96......................................50334
177.843  (a) and (b) revised; eff. 4-1-96..........................50335
177.861  (a) revised; notes 1 and 2 removed; eff. 4-1-96...........50335
178.53-5  Amended..................................................49111
178.58-5  Amended..................................................49111
178.337-3  (c) revised.............................................17401
178.338-11  (c) introductory text amended..........................17402
178.345-3  (c)(1)(iii)(B) and (2)(iii)(B) amended..................17402
178.345-14  (b)(3) amended.........................................17402
178.350  Revised; eff. 4-1-96......................................50336
    Corrected......................................................54409
178.350-1  Removed; eff. 4-1-96....................................50336
178.350-2  Removed; eff. 4-1-96....................................50336
178.350-3  Removed; eff. 4-1-96....................................50336
178.358-3  (a) amended.............................................49111
178.503  (e)(3) illustration revised...............................26806
178.504  (b)(1) amended............................................49111
178.609  (i) added.................................................48787
178.700  (c)(1) revised............................................40038
178.705  (c)(2)(ii) amended........................................40038
178.710  (c)(5) amended............................................40038
178.801  (b) revised...............................................40038
178.803  Revised...................................................40039
178.819  (b)(2) amended............................................40039
    (b)(2) corrected...............................................49111
179.1  (c) amended; eff. 7-1-96....................................49076
179.2  (a)(10) redesignated as (a)(11); new (a)(10) added; eff. 7-
        1-96.......................................................49076
179.7  Added; eff. 7-1-96..........................................49076
179.16  Added; eff. 7-1-96.........................................49077
179.18  Added; eff. 7-1-96.........................................49077
179.20  Added; eff. 7-1-96.........................................49077
179.22  Added; eff. 7-1-96.........................................49077
179.100-4  (a) amended; eff. 7-1-96................................49077
179.100-21  Removed; eff. 7-1-96...................................49077
179.100-23  Removed; eff. 7-1-96...................................49077
179.101-1  (a) table amended; eff. 7-1-96..........................49077
179.103-1  (c) removed; eff. 7-1-96................................49077
179.103-2  (a) revised; eff. 7-1-96................................49077
179.103-5  (a)(1) amended; eff. 7-1-96.............................49077
179.105  Removed; eff. 7-1-96......................................49077
179.105-1  Removed; eff. 7-1-96....................................49077
179.105-4  Removed; eff. 7-1-96....................................49077
179.105-5  Removed; eff. 7-1-96....................................49077
179.105-7  Removed; eff. 7-1-96....................................49077
179.105-8  Removed; eff. 7-1-96....................................49077
179.200-4  (a) amended; eff. 7-1-96................................49077
179.200-25  Removed; eff. 7-1-96...................................49078
179.200-27  Removed; eff. 7-1-96...................................49078
179.203  Removed; eff. 7-1-96......................................49078
179.203-1  Removed; eff. 7-1-96....................................49078
179.203-2  Removed; eff. 7-1-96....................................49078
179  Appendixes A and B added; eff. 7-1-96.........................49078
180.403  Amended...................................................17402
180.407  (c) table and (h)(2) amended; (d)(1)(i) and (ii) revised 
                                                                   17402
180.413  (b)(6), (d)(3) introductory text,(v) and (10) revised; 
        (d)(3)(iii) and (iv) amended; (d)(3)(v) added..............17402
180.501--180.519 (Subpart F)  Added; eff. 7-1-96...................49079

[[Page 1104]]

                                  1996

49 CFR
                                                                   61 FR
                                                                    Page
Chapter I
Chapter  I Advisory guidance.........................30444, 65479, 65480
106  Technical correction..........................................64030
106--110 (Subchapter A)  Heading revised...........................50908
106  Authority citation revised....................................50908
106.1  Amended.....................................................51336
106.3  (d) added...................................................30180
    (b) removed; (c) redesignated as (b)...........................50908
    Revised........................................................51336
106.13  Revised....................................................51336
106.17  (a) revised................................................30180
    (b) amended....................................................51336
106.21  Revised....................................................51336
106.25  Amended....................................................51336
106.27  (c) amended................................................51336
106.29  Amended....................................................51336
106.31  Revised....................................................30180
    (a), (c) introductory text and (d) amended.....................51336
106.33  Amended; (d) revised.......................................30181
    (b), (c) and (d) revised.......................................51336
106.35  (a) through (d) amended....................................30181
    (b) amended....................................................51337
106.37  Amended....................................................30181
    (a) revised....................................................51337
106.38  Added......................................................30181
106.39  Added......................................................30181
107.3  Amended.....................................................21094
107.5  (a) revised; (b) amended....................................21095
107.101--107.127 (Subpart B)  Revised..............................21095
107.111  (d) removed...............................................18931
107.201  (d) revised...............................................21098
107.202  (a) introductory text revised; (b)(3) amended.............21098
    (d) amended....................................................51337
107.203  (a) and (d) amended.......................................21098
107.205  Revised...................................................21098
107.207  (a) and (b) amended.......................................21098
107.209  (b) removed; (c), (d) and (e) redesignated as (b), (c) 
        and (d); (a) and new (b) amended; new (c) revised..........21098
107.211  (a) revised; (c) amended..................................21098
107.213  Added.....................................................21099
107.215  (a) amended...............................................21099
107.217  (a), (b), (c) and (e) amended; (d) revised................21099
107.219  (a) through (d) amended...................................21099
107.221  Revised...................................................21099
107.223  (a) revised; (c) amended..................................21099
107.227  Revised...................................................21099
107.299  Removed...................................................21099
107.305  (b) revised...............................................21099
107.307  (a) revised; (b) amended...................................7183
107.309  (a) amended................................................7183
107.310  Added......................................................7183
107.311  (a) revised................................................7184
107.315  (c) and (d) amended.......................................21100
107.331  Introductory text and (d) revised.........................21100
107.502  (f) removed...............................................51337
107.503  (b) introductory text amended; (b)(1) and (2) removed.....51337
107.504  (a) and (c) amended.......................................18931
107.601  (c) amended...............................................51337
107.701--107.717 (Subpart H)  Added................................21100
107.701  (a) designation correctly added...........................27948
130  Revised.......................................................30541
171  Petition denial...............................................51235
171.1  (a) introductory text amended; (d) added....................21101
171.2  (a) through (d) revised; (h) added..........................21101
171.3  (c) removed; (d) redesignated as (c)........................21102
171.4  (d) removed.................................................51337
171.6  (b)(2) table amended........................................33254
171.7  (a)(3) table amended.....25941, 26757, 27172, 28673, 28674, 51337
    (a)(3) table amended; eff. 1-1-97..............................50622
    (a)(3) table amended...........................................65959
171.8  Amended..............................................21102, 51337
    Amended; interim...............................................26419
    Regulation at 61 FR 26419 confirmed............................68954
171.11  (d)(1) revised.............................................27172
171.13  Removed....................................................18931
171.14  (a)(2)(iii) added...........................................7959
    (a) introductory text, (1), (2)(i) and (b) removed; (a)(2)(ii) 
and (iii) redesignated as (b) and (c); new (a) added; eff. 1-1-97 
                                                                   50622
171.15  (b) introductory text revised..............................18931

[[Page 1105]]

171.16  (b) revised................................................18932
    (c) revised; (d)(2) amended; (d)(3) redesignated as (d)(4); 
new (d)(3) added...................................................27172
172  Petition denial........................................38642, 51236
172.101  (g) revised; table and Appendix A amended.................18932
    Amended.................................................20749, 27172
    Table amended......................28674, 28675, 51240, 51337, 51338
    (c)(10)(iii) added; (c)(12)(ii), (iii) and table amended; eff. 
1-1-97.............................................................50623
    Table amended; eff. 1-1-97.....................................50624
172.102  (c)(1) amended.....................................27172, 51240
    (c)(3) amended..........................................28675, 50254
    (c)(1), (3) and (5) amended; eff. 1-1-97.......................50624
    (c)(1) and (3) amended.........................................51338
172.201  (b) removed...............................................18932
    (d) revised....................................................27172
172.203  (i)(4) added..............................................18932
    (d)(1) and (2) revised.........................................20749
    (e)(2) amended; (e)(3) removed.................................27172
    (e)(2) and (g) revised.........................................28675
172.205  (f) revised...............................................28675
172.302  (b) revised; eff. 1-1-97..................................50624
172.310  (b) amended...............................................20749
172.324  (a) revised...............................................27172
172.330  (a)(1) revised............................................28676
    (a)(1)(ii) amended.............................................50254
172.402  (d) revised...............................................27173
172.403  (a), (c) table and (g)(2) amended.........................20750
172.500  (b)(4) and (5) redesignated as (b)(5) and (6); new (b)(4) 
        added......................................................27173
172.504  (f)(8) amended; eff. 1-1-97...............................50624
172.510  (a) revised; (b) and (c) removed; (d) and (e) 
        redesignated as (b) and (c)................................28676
172.514  Heading amended...........................................50254
    (a) and (b) introductory text amended..........................50255
172.526  Removed...................................................28676
172.600  (d) revised...............................................27173
172.604  (c) added.................................................27173
172.702  (b) revised...............................................27173
172.704  (c)(1), (2) and (d) introductory text revised.............27173
172.803  (b) introductory text, (d)(1)(i) and (ii) amended; (e)(1) 
        designation added..........................................20750
172  Appendix B amended............................................20750
173  Authority citation revised....................................68954
173.4  Heading, (a) introductory text, (9) and (10) revised; 
        (a)(11) removed; (c) added.................................27173
173.7  (a) introductory text amended...............................51338
173.11  Removed....................................................18932
173.13  Added......................................................27173
173.21  (k) added; interim.........................................26419
    (f)(3) revised.................................................27174
    Regulation at 61 FR 26419 confirmed; (k) revised...............68954
173.22a  (c) added.................................................21102
    (c) amended....................................................51242
173.23  (c), (d) and (e) revised...................................26758
173.24a  (a)(3) amended; (b)(2) revised; eff. 1-1-97...............50624
173.24b  (a)(1) revised; (a)(3) removed............................28676
    (b) amended; eff. 1-1-97.......................................50624
173.28  (b)(4) and (7)(iv)(C) revised; (c)(2) amended; eff. 1-1-97
                                                                   50624
    (b)(4)(ii) corrected...........................................51495
173.29  (f) removed................................................28676
173.31  (b)(2)(ii) amended; (b)(3)(iii), (4)(i), (ii), (6)(ii), 
        (d)(1)(viii), (2), (e)(2) and (f)(1) revised...............33254
    (a)(6)(i) removed; (a)(6)(ii) through (v) redesignated as 
(a)(6)(i) through (iv); new (a)(6)(i) through (iv), (b)(5), (c)(3) 
and (d)(1)(vii) amended............................................51338
173.32  (d) and (e)(2)(i) amended; (t) added; eff. 1-1-97..........50625
173.32a  (c) revised...............................................27174
173.34  (h) amended................................................25942
    (d) introductory text amended; (d)(1) through (5) and (e) 
revised; (d)(6) added; (d)(7) removed..............................26758
    (e)(10), (13) and (19)(ii) amended; (e)(19) introductory text 
revised............................................................51240
173.63  (b) redesignated from 173.230(b)...........................27175
173.115  (b)(1) amended; eff. 1-1-97...............................50625
173.120  (b)(3) added; eff. 1-1-97.................................50625
173.121  (a) amended; eff. 1-1-97..................................50625

[[Page 1106]]

173.125  (a) revised; eff. 1-1-97..................................50625
173.127  (b)(1) removed; (b)(2) and (3) redesignated as (b)(1) and 
        (2); heading, (b) heading and new (1) introductory text 
        revised; eff. 1-1-97.......................................50625
173.133  (a) introductory text amended; eff. 1-1-97................50626
173.134  (b)(3)(ii) introductory text revised; (b)(4) added; eff. 
        1-1-97.....................................................50626
173.151  Heading revised; (d) added; eff. 1-1-97...................50626
173.155  (b)(1) amended............................................27174
173.156  (b) revised; eff. 1-1-97..................................50626
173.158  (d) revised; (f)(1) amended; eff. 1-1-97..................50626
173.163  Amended...................................................26763
173.170  Added; eff. 1-1-97........................................50626
173.171  Introductory text and (b) revised; (a) amended; (d) added
                                                                   27174
173.183  (a) and (b) amended; eff. 1-1-97..........................50627
173.189  (b) amended...............................................51338
173.220  (g)(2) revised............................................27175
173.224  (c)(1) and (2) amended....................................51338
173.225  (a) amended; eff. 1-1-97..................................50627
    (e)(1) amended.................................................51338
173.230  (b) redesignated as 173.63(b); removed....................27175
173.240  (a) amended...............................................28676
173.241  (a) amended...............................................28676
173.242  (a) amended...............................................28676
173.243  (a) amended...............................................28676
173.244  (a) amended...............................................28676
173.300a  (c) amended..............................................51338
173.301  Heading and (j) revised...................................26763
    (a) amended....................................................26764
173.302  (c)(3) and Note 1 amended; (c)(3) Note 3 added............26764
    (c)(3) amended.................................................51240
173.306  (i) introductory text revised; (i)(1) removed; (i)(2), 
        (3) and (4) redesignated as (i)(1), (2) and (3); eff. 1-1-
        97.........................................................50627
    (b)(3) amended.................................................51338
173.309  (b) revised........................................26764, 51240
173.314  (h) removed...............................................18933
    (b)(5) and (i) removed; (b)(6) redesignated as (b)(5); new 
(b)(5) revised; (c) amended........................................28676
    (c) table amended.......................................28677, 50255
    (c) Note 1 and (n) heading revised.............................33255
    (c) table amended; eff. 1-1-97.................................50627
173.315  (e) and (i)(3) amended....................................51339
173.316  (a)(8) and (c)(3)(ii) amended.............................25942
173.324  Removed...................................................18932
173.403  Amended...................................................20750
173.410  (f) amended...............................................20750
173.411  (b)(2)(ii) amended........................................20750
173.417  (a)(7) table and (b)(2) revised...........................20750
173.422  (a) introductory text, (4), (b)(1) and (2) amended; 
        (b)(3) added...............................................20751
173.425  Table revised.............................................20751
173.426  (c) amended...............................................20752
173.427  (a)(3), (b)(2), (3)(ii), (c)(1) and (f) table amended; 
        (b)(4) and (b)(5) added....................................20752
173.428  Introductory text, (a) introductory text amended..........20752
173.435  Table amended......................................20752, 27175
173.443  (a)(2) amended............................................20753
173.444  Removed...................................................18932
173.446  Removed...................................................18932
173.451  Removed...................................................18932
173.453  Introductory text amended.................................18933
173.463  Removed...................................................18932
173.465  (a) and (e)(1) amended....................................20753
173.477  Removed...................................................18932
173.478  Removed...................................................18932
173  Appendix H amended; eff. 1-1-97...............................50627
174.3  Revised.....................................................28677
174.7  Removed.....................................................18933
174.8  Removed.....................................................28677
174.9  Revised.....................................................28677
174.10  Removed....................................................28677
174.11  Removed....................................................28677
174.12  Removed....................................................18933
174.18  Removed....................................................28677
174.24  Revised....................................................28677
    Amended........................................................50255
174.25  Removed....................................................28677
174.26  (a) removed; (b) and (c) redesignated as (a) and (b); new 
        (b) revised................................................28677
174.33  Removed....................................................18933
174.45  Removed....................................................18933
174.47  Removed....................................................28677
174.48  Removed....................................................28677

[[Page 1107]]

174.49  Removed....................................................28677
174.50  Revised....................................................28677
174.55  Revised....................................................28677
174.67  (k) amended................................................28678
174.69  Removed....................................................18933
174.81  (g) introductory text amended..............................51339
174.83  (b) introductory text amended..............................51339
174.85  (c) revised................................................28678
    (c) amended....................................................50255
    (d) table amended..............................................51339
174.100  Removed...................................................18933
174.101  (h) and (o) introductory text amended.....................51339
174.107  Removed...................................................18933
174.109  Removed...................................................18933
174.112  (b) amended...............................................51339
174.208  Removed...................................................18933
174.280  Removed...................................................18933
174.380  Removed...................................................18933
174.410--174.480 (Subpart H)  Removed..............................18933
174.510--174.580 (Subpart I)  Removed..............................18933
174.615  (a) removed...............................................18933
174.700  (b) amended...............................................20753
174.800--174.810 (Subpart L)  Removed..............................18933
174.840 (Subpart M)  Removed.......................................18933
175.45  Removed....................................................18933
175.320  (a) table amended.........................................51339
175.640  Removed...................................................18933
176.33  Removed....................................................18933
176.76  (f), (g)(1) and (4) removed; (g) introductory text, (2), 
        (3), (5), (h) and (i) redesignated as (f) introductory 
        text, (1), (2), (3), (g) and (h)...........................18933
176.78  (g)(4) and (5) removed.....................................18933
176.79  Removed....................................................18933
176.104  (i) amended...............................................27175
176.194  (c) and (e) amended.......................................51339
176.331  Removed...................................................18933
176.340  (b)(1), (3), (4) and (5) amended..........................51339
176.419  Removed...................................................18933
176.704  (c) amended...............................................20753
176.800  (a) revised...............................................18933
176.906  Removed...................................................18933
177.800  (d) added.................................................18933
177.801  Revised...................................................27175
177.803  Removed...................................................18933
177.805  Removed...................................................18933
177.806  Removed...................................................18933
177.807  Removed...................................................18933
177.808  Removed..................................................189330
177.809  Removed...................................................18933
177.811  Removed...................................................18933
177.812  Removed...................................................18933
177.813  Removed...................................................18933
177.814  Removed...................................................18933
177.815  Removed...................................................18933
177.818  Removed...................................................27175
177.821  (c) through (f) removed...................................18933
    Removed........................................................27175
177.822  Removed...................................................27175
177.823  Heading revised; (b) and (c) added........................18933
177.824  Removed...................................................27175
177.825  Removed...................................................18933
177.826  Removed...................................................18933
177.834  (b) removed; (j) revised..................................27175
177.835  (k), (l) and (m) removed..................................27175
    (g) introductory text revised..................................51339
177.836  Removed...................................................18933
177.837  (a) revised...............................................18933
    (d) removed....................................................27175
177.838  (d) and (e) removed.......................................18933
    (g) revised....................................................27175
177.839  Revised...................................................27175
177.841  (d) removed; (e)(1) revised...............................27175
177.844  Removed...................................................18933
177.848  (e)(5) amended............................................27175
177.853  Removed...................................................18933
177.855  Removed...................................................18933
177.856  Removed...................................................18933
177.857  Removed...................................................18933
177.858  Removed...................................................18933
177.859  Removed...................................................18933
177.860  Removed...................................................18933
177.861  Removed...................................................18933
178.3  (d) added...................................................21102
178.35--178.68 (Subpart C)  Revised................................25942
178.245-1  Revised; eff. 1-1-97....................................50627
178.245-4  (e) added; eff. 1-1-97..................................50628
178.245-6  (a) amended; eff. 1-1-97................................50628
178.270-12  (a) amended; eff. 1-1-97...............................50628
178.315  Removed...................................................27176
178.315-1  Removed.................................................27176
178.315-2  Removed.................................................27176
178.315-3  Removed.................................................27176

[[Page 1108]]

178.315-4  Removed.................................................27176
178.315-5  Removed.................................................27176
178.320  (a) amended...............................................51339
178.337-1  (b), (c)(1), (2) introductory text, (i), (ii), (d), 
        (e)(1), (2) and (f) amended................................51340
178.337-2  (b)(2)(i) and (ii) amended..............................28678
    (a)(1) through (4), (b) heading, (1) introductory text, (2) 
introductory text and (c) amended..................................51340
178.337-3  (b), (c)(1)(iii)(A), (B) introductory text, (C), 
        (iv)(A), (B), (C), (2)(iii)(A), (B) introductory text, 
        (C), (iv)(A), (B), (C), (e), (f), (g) introductory text 
        and (1) amended............................................51340
178.337-4  (b) and (c) amended.....................................51340
178.337-6  (b) amended.............................................51340
178.337-8  (a)(1) amended..........................................51340
178.337-9  (a)(2), (3), (b)(1), (6), (c) and (d)(1) amended........51340
178.337-11  (a)(1)(ii) through (v), (2)(i), (ii), (b), (c)(1) and 
        (3) amended................................................51340
178.337-13  (a) through (d) amended................................51340
178.337-14  (b)(2) amended.........................................51340
178.337-15  (a) amended............................................51340
178.337-16  (a), (b)(1), (2) and (c) amended.......................51340
178.337-17  (a) amended............................................51340
178.337-18  (a) introductory text, (3) and (b) amended.............51340
178.338-9  (c)(1) amended..........................................51340
178.345-1  (c) amended.............................................51340
178.345-2  (a)(1), (c)(1) and (2) amended..........................51341
178.345-3  (a)(1), (b) introductory text, (c)(1) introductory 
        text, (iii)(A), (B) introductory text, (C), (iv)(A), (B), 
        (C), (2) introductory text, (iii)(A), (B) introductory 
        text, (C), (iv)(A), (B), (C) and (f)(2) amended............51341
178.345-4  (a) amended.............................................51341
178.345-6  (a) and (b) amended.....................................51341
178.345-7  (a) introductory text, (c), (d)(2) and (5) amended; 
        (d)(2) table revised.......................................51341
178.345-8  (a)(1) introductory text, (3), (4), (b) introductory 
        text, (2), (c)(1), (2), (d) introductory text, (1), (2) 
        introductory text, (ii) and (e) amended....................51341
178.345-9  (e) and (h) amended.....................................51341
178.345-10  (a), (c), (e) introductory text and (1) amended........51341
178.345-11  (a), (b) introductory text and (d) amended......51341, 51342
178.345-12  Amended................................................51342
178.345-13  (a), (b) introductory text, (1) and (2) amended........51342
178.345-14  (a) revised; (b)(4), (5) and (d) amended...............51342
178.345-15  (b)(2) and (d) amended................................513420
178.346-3  Removed.................................................18933
    Redesignated from 178.346-10...................................18934
178.346-4  Removed.................................................18933
    Redesignated from 178.346-11...................................18934
178.346-5  Removed.................................................18933
    Redesignated from 178.346-13...................................18934
178.346-6  Removed.................................................18933
178.346-7  Removed.................................................18933
178.346-8  Removed.................................................18933
178.346-9  Removed.................................................18933
178.346-10  Redesignated as 178.346-3..............................18934
178.346-11  Redesignated as 178.346-4..............................18934
178.346-12  Removed................................................18933
178.346-13  Redesignated as 178.346-5..............................18934
178.346-14  Removed................................................18933
178.346-15  Removed................................................18933
178.347-3  Removed.................................................18933
    Redesignated from 178.347-5....................................18934
178.347-4  Removed.................................................18933
    Redesignated from 178.347-10...................................18934
178.347-5  Redesignated as 178.347-3; new 178.347-5 redesignated 
        from 178.347-13............................................18934
178.347-6  Removed.................................................18933
178.347-7  Removed.................................................18933
178.347-8  Removed.................................................18933
178.347-9  Removed.................................................18933
178.347-10  Redesignated as 178.347-4..............................18934
178.347-11  Removed................................................18933
178.347-12  Removed................................................18933
178.347-13  Redesignated as 178.347-5..............................18934
178.347-14  Removed................................................18933
178.347-15  Removed................................................18933

[[Page 1109]]

178.348-3  Removed.................................................18933
    Redesignated from 178.348-9....................................18934
178.348-4  Removed.................................................18933
    Redesignated from 178.348-10...................................18934
178.348-5  Removed.................................................18933
    Redesignated from 178.348-13...................................18934
178.348-6  Removed.................................................18933
178.348-7  Removed.................................................18933
178.348-8  Removed.................................................18933
178.348-9  Redesignated as 178.348-3...............................18934
178.348-10  Redesignated as 178.348-4..............................18934
178.348-11  Removed................................................18933
178.348-12  Removed................................................18933
178.348-13  Redesignated as 178.348-5..............................18934
178.348-14  Removed................................................18933
178.348-15  Removed................................................18933
178.601  (c)(4)(iv) and (v) amended; (c)(4)(vi) and (g)(8) added; 
        eff. 1-1-97................................................50628
178.705  (c)(1)(iv)(B) and (2)(ii) amended; eff. 1-1-97............50629
179.2  (a)(10) amended.............................................33255
179.7  (a)(2), (b)(5), (9) and (d) revised; (b)(10) removed; 
        (b)(11), (12) and (13) redesignated as (b)(10), (11) and 
        (12); (b)(7), new (10) and (f) amended.....................33255
179.12  Revised....................................................28678
179.12-1  Removed..................................................28678
179.12-2  Removed..................................................28678
179.12-3  Removed..................................................28678
179.12-4  Removed..................................................28678
179.12-5  Removed..................................................28678
179.12-6  Removed..................................................28678
179.12-7  Removed..................................................28678
179.15  Added......................................................28678
    Introductory text, (b) heading, (2)(i), (c) heading and (e) 
introductory text amended; (f)(1) revised..........................50255
179.16  (b) revised; (c) added.....................................33255
179.18  (a) introductory text and (b)(2) amended; (b)(1) revised 
                                                                   33256
179.22  (b), (c) and (d) amended...................................33256
179.100-2  Removed.................................................18934
179.100-5  Removed.................................................18934
179.100-7  (a) table revised; (b) table, (c)(1) table and (2)(i) 
        amended....................................................28678
    (a) table amended..............................................50255
179.100-10  (c) amended............................................28679
179.100-11  Removed................................................18934
179.100-15  Removed................................................28679
179.100-20  (a) table amended......................................28679
179.100-22  Removed................................................18934
179.101-1  Revised.................................................28679
179.102-1  (a)(1) amended..........................................28680
179.102-2  (a)(1) amended..........................................28680
179.102-4  (d) and (l) removed; (b), (c) and (e) through (k) 
        redesignated as (a) through (i)............................28680
179.103-5  (a)(3) amended; (b)(2) revised..........................28680
    (a)(1) amended.................................................51342
179.104  Removed...................................................18934
179.104-1  Removed.................................................18934
179.104-2  Removed.................................................18934
179.104-3  Removed.................................................18934
179.104-4  Removed.................................................18934
179.200-2  Removed.................................................18934
179.200-5  Removed.................................................18934
179.200-7  (b) table revised; (c) table, (d) table, (e) table and 
        (f) table amended..........................................28680
179.200-12  Removed................................................18934
179.200-14  (a) and (b) amended....................................28680
179.200-16  (d) amended............................................28680
179.200-18  Removed................................................28680
179.200-20  Removed................................................18934
179.200-24  (a) table amended......................................28680
179.200-26  Removed................................................18934
179.201-1  Revised.................................................28680
179.201-4  Amended..........................................28681, 50255
179.201-5  (a) and (b) amended.....................................28681
179.201-7  Removed.................................................28681
179.202--179.202-22  Removed.......................................18934
179.220-2  Removed.................................................18934
179.220-5  Removed.................................................18934
179.220-7  (b) table revised; (c) table, (d) table and (e) table 
        amended....................................................28681
179.220-12  Removed................................................18934
179.220-19  Removed................................................28681
179.220-21  Removed................................................18934
179.220-27  Removed................................................18934
179.221-1  Revised.................................................28681
179.222  Removed...................................................28682
179.222-1  Removed.................................................28682
179.300-2  Removed.................................................18934
179.300-5  Removed.................................................18934
179.300-7  (a) table amended; (b) removed..........................28682
    (a) table amended..............................................50255
    (a) amended....................................................51342

[[Page 1110]]

179.300-11  Removed................................................18934
179.400-2  Removed.................................................18934
179.400-6  (a) removed.............................................18934
179.400-26  Removed................................................18934
179.500-2  Removed.................................................18934
179.500-9  Removed.................................................18934
179.500-17  (a)(7) removed.........................................28682
179  Appendix A amended............................................33256
180.403  Amended...................................................51342
180.407  (a)(1) amended............................................27176
    (c) table, (d)(2)(vi), (f)(3), (g)(1)(viii), (ix), (h)(1) 
introductory 0text, (i) and (ii) amended...........................51342
180.413  (e) amended...............................................51342
180.415  (b) amended...............................................51343
180.417  (c)(2) amended............................................51343
180.501  (a) amended...............................................33256
180.509  (b) introductory text, (c)(3)(iii)(A), (B), (j) and (l) 
        heading revised; (b)(1), (c)(3)(iii) introductory text, 
        (g)(1)(ii) introductory text, table and (i) amended........33256
180.511  (e) amended...............................................33256
180.515  (a) amended; (b) removed; (c) and (d) redesignated as (b) 
        and (c)....................................................33257
180.519  (b)(5), (6) and (c) amended...............................33257

                                  1997

  (Regulations published from January 1, 1997, through October 1, 1997)

49 CFR
                                                                   62 FR
                                                                    Page
Chapter I
107  Authority citation revised..............................2971, 24057
107.14  Added......................................................24057
    (a)(1) corrected...............................................34415
107.105  (a) introductory text revised.............................51556
107.117  (d)(5) amended............................................51556
107.329  (a) and (b) amended........................................2971
107.299--107.339 (Subpart D)  Appendix A amended.......2972, 2977, 51556
171  Authority citation revised........................2977, 7647, 44048
    Clarification and workshop date change.........................16107
    Reconsideration petitions......................................31363
    Effective date confirmation....................................44913
    Advisory guidance..............................................49171
171.1  Revised......................................................1215
    (c) added.......................................................2977
    (a)(1) amended.................................................49566
171.5  Added; eff. 2-19-97 through 8-15-97; interim.................7647
    Added..........................................................44048
171.6  (b)(2) table revised........................................51557
    (a) and (b) introductory text amended..........................51558
171.7  (a)(3) table amended.................................24699, 24700
    (a)(3) table and (b) table amended.............................51558
171.8  Amended..................................1215, 1227, 24700, 51558
    Regulation at 62 FR 1227 eff. date delayed to 10-1-98..........39398
171.11  (d)(9)(iii) amended.........................................1227
    (d)(4) revised; (d)(9)(i) amended; (d)(14) added...............24700
    (d)(15) added..................................................30770
    Regulation at 62 FR 30770 eff. date delayed to 8-7-97..........34667
    Regulation at 62 FR 1227 eff. date delayed to 10-1-98..........39398
171.12  (b)(8)(iii) amended.........................................1227
    (b)(8)(i) amended; (b)(13) removed; (b)(17) added..............24700
    (b)(18) added..................................................30770
    Regulation at 62 FR 30770 eff. date delayed to 8-7-97..........34667
    Regulation at 62 FR 1227 eff. date delayed to 10-1-98..........39398
    (d)(1) amended.................................................51558
171.12a  (b)(5)(iii) amended........................................1227
    (b)(5)(i) amended; (b)(12) removed; (b)(16) added..............24700
    (b)(17) added..................................................30770
    Regulation at 62 FR 30770 eff. date delayed to 8-7-97..........34667
    Regulation at 62 FR 1227 eff. date delayed to 10-1-98..........39398
171.14  (b) revised.................................................1227
    (d) added......................................................24700
    (c) redesignated as (c)(1); (c)(2) added.......................29676
    Regulation at 62 FR 1227 eff. date delayed to 10-1-98..........39398
    Heading, introductory text and (b) revised; (e) added; eff. 
10-1-98............................................................39404
171.15  (a)(2) amended.............................................51558
172.101  (g) table amended..........................................1227
    (c)(10)(iii) revised...........................................14337
    Table amended........14338, 24701, 24714, 24716, 30771, 34669, 51559
    (c)(14), (15) and (l)(3) added; (f) and table amended..........24701

[[Page 1111]]

    Table and Appendix B amended...................................24717
    Regulation at 62 FR 30771 eff. date delayed to 8-7-97..........34667
    Regulation at 62 FR 1227 eff. date delayed to 10-1-98..........39398
    (g) table amended; eff. 10-1-98................................39404
    Table corrected................................................45702
    Table and Appendix A amended...................................51560
172.102  (c)(1), (3), (5) and (7)(ii) amended......................24718
    (c)(1) amended..........................................24719, 34669
    (c)(1) and (2) amended.........................................30772
    Regulation at 62 FR 30772 eff. date delayed to 8-7-97..........34667
172.203  (j) removed; (k)(3) and (m)(3) amended....................24719
    (k)(3) amended.................................................51560
172.204  (b)(1) introductory text amended..........................51560
172.301  (a)(1) revised; (a)(3) added; (f)(1) and (2) removed.......1227
    Regulation at 62 FR 1227 eff. date delayed to 10-1-98..........39398
    (a)(3) revised; eff. 10-1-98...................................39404
172.302  (g) added..................................................1228
    Regulation at 62 FR 1228 eff. date delayed to 10-1-98..........39398
172.313  (a) revised; (c) added.....................................1228
    Regulation at 62 FR 1228 eff. date delayed to 10-1-98..........39398
    Introductory text added; (b) and (c) revised; eff. 10-1-98.....39405
    Corrected......................................................45702
172.328  (a)(3) added...............................................1228
    Regulation at 62 FR 1228 eff. date delayed to 10-1-98..........39398
    (a)(3) revised; eff. 10-1-98...................................39405
172.331  (c) added..................................................1228
    Regulation at 62 FR 1228 eff. date delayed to 10-1-98..........39398
172.332  (a) revised................................................1228
    Regulation at 62 FR 1228 eff. date delayed to 10-1-98..........39398
172.400  (b) table revised..........................................1228
    Regulation at 62 FR 1228 eff. date delayed to 10-1-98..........39398
    (b) table amended; eff. 10-1-98................................39405
172.402  (e)(1) revised; eff. 10-1-98..............................39405
172.416  Revised....................................................1229
    Regulation at 62 FR 1229 eff. date delayed to 10-1-98..........39398
    Revised; eff. 10-1-98..........................................39405
172.429  Added......................................................1229
    Regulation at 62 FR 1229 eff. date delayed to 10-1-98..........39398
    Revised; eff. 10-1-98..........................................39406
172.502  (a)(2) revised; (b)(3) added...............................1230
    Regulation at 62 FR 1230 eff. date delayed to 10-1-98..........39398
    (b)(3) revised; eff. 10-1-98...................................39407
172.504  (b) and (e) revised; (f)(11) added.........................1230
    Regulation at 62 FR 1230 eff. date delayed to 10-1-98..........39398
    (e) table amended; eff. 10-1-98................................39407
172.505  (a) revised................................................1231
    Regulation at 62 FR 1231 eff. date delayed to 10-1-98..........39398
172.510  (b) removed; (c) redesignated as (b); new (b) amended......1231
    Regulation at 62 FR 1231 eff. date delayed to 10-1-98..........39398
172.540  Revised....................................................1231
    Regulation at 62 FR 1231 eff. date delayed to 10-1-98..........39398
    Revised; eff. 10-1-98..........................................39408
172.555  Added......................................................1233
    Regulation at 62 FR 1233 eff. date delayed to 10-1-98..........39398
    Revised; eff. 10-1-98..........................................39409
172.602  (c)(1) revised.............................................1234
    Regulation at 62 FR 1234 eff. date delayed to 10-1-98..........39398
172.606  Added......................................................1234
    Regulation at 62 FR 1234 eff. date delayed to 10-1-98..........39398
    (c) added; eff. 10-1-98........................................39409
172.801--172.807 (Subpart I)  Removed..............................46216
173  Meeting.......................................................37149
173.3  (c)(1) amended; (c)(3) revised; (c)(7) added................24719
173.5  Revised......................................................1215
    (a)(2) amended.................................................49566
173.6  Added........................................................1216
    (a)(1) introductory text, (2), (b)(4) and (d) revised; 
(a)(1)(iii) amended; (e) added.....................................49566
    (c)(3) amended.................................................51560
173.8  Added........................................................1216
    (d)(3) amended.................................................49567
173.9  Revised......................................................1234
    Regulation at 62 FR 1234 eff. date delayed to 10-1-98..........39398

[[Page 1112]]

    (e) amended....................................................51560
173.21  (f) introductory text amended..............................24719
173.28  (b)(4)(i) table amended....................................14338
173.29  (b)(1) revised..............................................1236
    Regulation at 62 FR 1236 eff. date delayed to 10-1-98..........39398
173.32  (e)(2)(i) amended..........................................51560
173.32c  (j) amended...............................................24719
173.34  (e)(18)(i) table amended...................................24719
173.56  (b)(1) and (f) amended.....................................51560
173.60  Revised....................................................24719
173.62  Revised....................................................24720
    Table corrected................................................45702
    (b) table amended..............................................51560
173.120  (a)(3) revised; (b)(3), (c)(1)(i)(A) and (B) amended; 
        (c)(1)(i)(C) added.........................................24731
173.124  (a)(1) introductory text, (2)(i)(D)(2), (3)(ii), (iii), 
        (b)(1), (2) and (c) amended................................24731
173.125  (b), (c)(2)(i), (ii), (d)(1), (2) and (3) revised.........24731
    (a) amended....................................................51560
173.166  (b)(1) and (3)(i) amended.................................51560
173.127  Revised...................................................24732
173.128  (c)(3) and (e) amended....................................24732
173.132  (c) redesignated as (d); (b)(3)(iii) and new (c) added....24732
    (c)(3) corrected...............................................45702
173.136  (c) added.................................................24732
173.137  (b) and (c)(2) amended....................................24733
173.152  (b)(4) added..............................................24733
173.162  Amended...................................................24733
173.166  Heading and (e) revised; (a) amended; (b) introductory 
        text, (2), (4), (c), (d)(1), (2) and (f) amended...........24733
    (b)(1) and (3)(i) amended......................................51560
173.170  (c) amended...............................................14338
173.185  Revised...................................................24733
173.201  (b) and (c) amended.......................................24734
173.202  (b) and (c) amended.......................................24734
    (b) amended....................................................51560
173.203  (b) and (c) amended.......................................24734
173.211  (b) and (c) amended.......................................24734
173.212  (b) and (c) amended.......................................24734
173.213  (b) and (c) amended.......................................24734
173.220  (c)(1) revised............................................24734
173.221  Amended...................................................51560
173.224  (b) table revised.........................................24734
    (c)(3) removed; (c)(4) redesignated as (c)(3); (c)(1) and 
(3)(ii) amended....................................................24735
    (b) table corrected............................................45702
173.225  (b)(2) amended; (b)(4)(ii), (6), table, (d) and (e)(5) 
        revised....................................................24735
    (c)(2), (3) and (e)(2)(i)(B) removed; (c)(4), (5) and 
(e)(3)(i)(C) redesignated as (c)(2), (3) and (e)(3)(i)(B); (c)(1), 
new (2)(ii) and (e)(2) amended.....................................24741
    (e)(4) amended.................................................51560
173.226  (c)(1) amended............................................24741
173.242  (b)(1) amended............................................51560
173.243  (b)(1) amended............................................51560
173.247  (g)(1)(iii)(C) amended....................................51560
173.315  (a) table amended.........................................24741
173.316  (d) added.................................................24741
173.318  (f)(4) added..............................................24741
173.320  (a)(3) revised............................................51561
173.422  (b)(2) amended............................................51561
173  Appendixes E and F removed....................................24741
174.26  Revised.....................................................1236
    Regulation at 62 FR 1236 eff. date delayed to 10-1-98..........39398
174.680  (a) revised................................................1236
    Regulation at 62 FR 1236 eff. date delayed to 10-1-98..........39398
174.705  Removed...................................................46216
175.10  (a)(22) amended............................................24741
175.630  Revised....................................................1236
    Regulation at 62 FR 1236 eff. date delayed to 10-1-98..........39398
175.700  (b) amended...............................................51561
175.706  Removed...................................................46216
176.78  (k) revised................................................24741
176.84  (b) table amended..........................................24742
176.340  (c) amended...............................................51561
176.600  (a) revised................................................1236
    Regulation at 62 FR 1236 eff. date delayed to 10-1-98..........39398
176.703  Removed...................................................46216
176.905  Revised...................................................24742
177.810  Amended...................................................51561
177.827  Removed...................................................46216
177.840  (e) amended...............................................51561
177.841  (e)(1) and (2) revised.....................................1236
    Regulation at 62 FR 1236 eff. date delayed to 10-1-98..........39398
178.2  (f) added...................................................14338
178.36  (a)(2)(iii) amended........................................51561
178.44  (b) Table 1 amended........................................51561

[[Page 1113]]

178.50  (i) introductory text amended..............................51561
178.68  (f)(1)(ii) revised.........................................51561
178.270-14  (b)(13) revised........................................51561
178.338-19  (b) amended............................................51561
178.503  (a)(1) amended............................................51561
178.511  Heading, (a), (b) introductory text and (1) revised; 
        (b)(2) through (6) redesignated as (b)(3) through (7); new 
        (b)(2) added...............................................24742
178.703  (b)(6) added..............................................24743
178.707  (c)(2) and (3) amended; (c)(6) added......................24743
178.815  (c)(3) amended............................................24743
179.15  (b) heading and (f)(1) revised; (e) introductory text 
        amended....................................................51561
179.100-19  (a) amended............................................51561
179.200-23  (a) amended............................................51561
179.220-24  Amended................................................51561
179.221-1  Table amended...........................................51561
180  Authority citation revised....................................51561
180.409  (a) revised; (b) redesignated as (d); new (b) and (c) 
        added.......................................................1217
180.509  (j) redesignated as (j)(1); (j)(2) added..................51561

                                  1998

              (Correction published from January 12, 1998)

49 CFR
                                                                   63 FR
                                                                    Page
Chapter I
173.62  (c)(5) table corrected......................................1884