[Federal Register Volume 66, Number 167 (Tuesday, August 28, 2001)]
[Rules and Regulations]
[Pages 45376-45392]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-16660]



[[Page 45375]]

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Part II





Department of Transportation





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Research and Special Programs Administration



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49 CFR Parts 107, 110, et al.



Hazardous Materials Regulations: Minor Editorial Corrections and 
Clarifications; Final Rule

  Federal Register / Vol. 66, No. 167 / Tuesday, August 28, 2001 / 
Rules and Regulations  

[[Page 45376]]


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DEPARTMENT OF TRANSPORTATION

Research and Special Programs Administration

49 CFR Parts 107, 110, 130, 171, 172, 173, 174, 175, 176, 177, 178, 
179 and 180

[Docket No. RSPA-2001-9567 (HM-189R)]
RIN 2137-AD51


Hazardous Materials Regulations: Minor Editorial Corrections and 
Clarifications

AGENCY: Research and Special Programs Administration (RSPA), DOT.

ACTION: Final rule.

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SUMMARY: This final rule corrects inconsistencies in terminology and 
makes minor editorial corrections to improve the clarity of the 
Hazardous Materials Regulations (HMR). The intended effect of this rule 
is to enhance the accuracy and reduce misunderstandings of the 
regulations. The amendments contained in this rule are minor editorial 
changes and do not impose new requirements.

DATES: Effective Date: September 27, 2001.

FOR FURTHER INFORMATION CONTACT: Gigi Corbin, Office of Hazardous 
Materials Standards, (202) 366-8553, Research and Special Programs 
Administration, U.S. Department of Transportation, 400 Seventh Street, 
SW., Washington, DC 20590-0001.

SUPPLEMENTARY INFORMATION:

I. Introduction

    This final rule corrects inconsistent use of terminology to enhance 
the clarity of the HMR. Because these amendments do not impose new 
requirements, notice and public comment procedures are unnecessary.

II. Summary of Regulatory Changes

    The following is a summary of the amendments made under this final 
rule. It does not discuss all minor editorial corrections (for example: 
typographical, capitalization and punctuation errors) and certain other 
minor adjustments to enhance the clarity of the HMR.
    --The term ``Associate Administrator'' is added in Secs. 110.20 and 
171.8 to the listing of definitions and abbreviations for uniformity 
and continuity with the definition that appears in Sec. 107.3. The 
wording ``Associate Administrator for Hazardous Materials Safety'' is 
revised to read ``Associate Administrator'' wherever it appears in 49 
CFR Parts 107 through 180. However, the title ``Associate Administrator 
for Hazardous Materials Safety'' is retained when it appears as part of 
an address.

--The definition of ``DOT and Department'' in Sec. 179.2 is removed and 
is added in Secs. 107.3 and 171.8. All other references to ``Department 
of Transportation'' are revised to read ``Department'', except where 
they appear in an address.
--Obsolete references to Explosive A, Class A, Explosive B, Class B, 
Explosive C, Class C and blasting agent are removed.
--The term ``frangible disc'' is revised to read ``rupture disc'' for 
consistency of usage. These terms are synonymous.
--The definition of ``intermediate bulk container'' in Sec. 171.8 is 
revised to include the acronym ``IBC.'' All other references in the HMR 
to ``intermediate bulk container'' and ``intermediate bulk containers'' 
are revised to read ``IBC'' or ``IBCs'' respectively.
--The definition of ``Maximum Allowable Working Pressure or MAWP'' in 
Sec. 171.8 is removed and the acronym ``MAWP'' is added. All other 
references to ``maximum allowable working pressure'' are revised to 
read ``MAWP''.
--RSPA has reviewed the references to units of pressure measurements in 
the HMR for consistency. The units used are psi (pounds per square 
inch), psig (pounds per square inch, gauge) and psia (pounds per square 
inch, absolute). Revisions have been made, where necessary, to 
designate ``psi'' for units of material stress, ``psig'' for test 
pressure measurements, and ``psia'' for measurements of vapor pressure. 
The entry ``Psi'' is removed in Sec. 179.2--Definitions and 
abbreviations, since the entry already is in Sec. 171.8.
--The term ``UN Recommendations'' is added in Sec. 171.8 to the listing 
of definitions and abbreviations. References to the ``UN 
Recommendations on the Transport of Dangerous Goods'' are revised to 
read ``UN Recommendations''.
--In Sec. 172.102, special provision 27 does not appear in any entry in 
the Sec. 172.101 Hazardous Materials Table and is removed.
--A typographical error is corrected in Sec. 173.315(n)(1)(v), column 
(4), by replacing ``paragraph (n)(3)'' with ``paragraph (n)(2)'' the 
second time it appears.
--In Sec. 175.78, all references to ``ICAO'' (hazard) classes are 
removed.
--Text indicating units of measure is replaced by the International 
System of Units (SI) symbol.

III. Rulemaking Analyses and Notices

A. Executive Order 12866 and DOT Regulatory Policies and Procedures

    This final rule is not considered a significant regulatory action 
under section 3(f) of Executive Order 12866 and, therefore, was not 
subject to review by the Office of Management and Budget. This rule is 
not significant according to the Regulatory Policies and Procedures of 
the Department of Transportation (44 FR 11034). Because of the minimal 
economic impact of this rule, preparation of a regulatory impact 
analysis or a regulatory evaluation is not warranted.

B. Executive Order 13132

    This final rule has been analyzed in accordance with the principles 
and criteria in Executive Order 13132 (``Federalism''). This final rule 
does not propose any regulation that: (1) Has substantial direct 
effects on the States, the relationship between the national government 
and the States, or the distribution of power and responsibilities among 
the various levels of government; (2) imposes substantial direct 
compliance costs on State and local governments; or (3) preempts state 
law.
    RSPA is not aware of any State, local, or Indian tribe requirements 
that would be preempted by correcting editorial errors and making minor 
regulatory changes. This final rule does not have sufficient federalism 
impacts to warrant the preparation of a federalism assessment.

C. Executive Order 13084

    This rule has been analyzed in accordance with the principles and 
criteria contained in Executive Order 13084 (``Consultation and 
Coordination with Indian Tribal Governments''). Because this rule would 
not significantly or uniquely affect the communities of the Indian 
tribal governments, the funding and consultation requirements of this 
Executive Order do not apply.

D. Regulatory Flexibility Act

    I certify that this final rule will not have a significant economic 
impact on a substantial number of small entities. This rule makes minor 
editorial changes which will not impose any new requirements on persons 
subject to the HMR; thus, there are no direct or indirect adverse 
economic impacts for small units of government, businesses or other 
organizations.

[[Page 45377]]

E. Unfunded Mandates Reform Act of 1995

    This rule does not impose unfunded mandates under the Unfunded 
Mandates Reform Act of 1995. It does not result in costs of $100 
million or more to either State, local, or tribal governments, in the 
aggregate, or to the private sector, and is the least burdensome 
alternative that achieves the objective of the rule.

F. Paperwork Reduction Act

    There are no new information collection requirements in this final 
rule.

G. Regulation Identifier Number (RIN)

    A regulation identifier number (RIN) is assigned to each regulatory 
action listed in the Unified Agenda of Federal Regulations. The 
Regulatory Information Service Center publishes the Unified Agenda in 
April and October of each year. The RIN number contained in the heading 
of this document can be used to cross-reference this action with the 
Unified Agenda.

List of Subjects

49 CFR Part 107

    Administrative practice and procedure, Hazardous materials 
transportation, Packaging and containers, Penalties, Reporting and 
recordkeeping requirements.

49 CFR Part 110

    Disaster assistance, Education, Emergency preparedness, Grant 
programs--environmental protection, Grant programs--Indians, Hazardous 
materials transportation, Hazardous substances, Indians, Reporting and 
recordkeeping requirements.

49 CFR Part 130

    Oil pollution, Packaging and containers, Response Plans, Reporting 
and recordkeeping requirements, Transportation.

49 CFR Part 171

    Exports, Hazardous materials transportation, Hazardous waste, 
Imports, Reporting and recordkeeping requirements.

49 CFR Part 172

    Education, Hazardous materials transportation, Hazardous waste, 
Labeling, Markings, Packaging and containers, Reporting and 
recordkeeping requirements.

49 CFR Part 173

    Hazardous materials transportation, Packaging and containers, 
Radioactive materials, Reporting and recordkeeping requirements, 
Uranium.

49 CFR Part 174

    Hazardous materials transportation, Radioactive materials, Railroad 
safety.

49 CFR Part 175

    Air carriers, Hazardous materials transportation, Radioactive 
materials, Reporting and recordkeeping requirements.

49 CFR Part 176

    Hazardous materials transportation, Maritime carriers, Radioactive 
materials, Reporting and recordkeeping requirements.

49 CFR Part 177

    Hazardous materials transportation, Motor carriers, Radioactive 
materials, Reporting and recordkeeping requirements.

49 CFR Part 178

    Hazardous materials transportation, Motor vehicle safety, Packaging 
and containers, Reporting and recordkeeping requirements.

49 CFR Part 179

    Hazardous materials transportation, Railroad safety, Reporting and 
recordkeeping requirements.

49 CFR Part 180

    Hazardous materials transportation, Motor carriers, Motor vehicle 
safety, Packaging and containers, Railroad safety, Reporting and 
recordkeeping requirements.


    In consideration of the foregoing, 49 CFR Chapter I is amended as 
follows:

PART 107--HAZARDOUS MATERIALS PROGRAM PROCEDURES

    1. The authority citation for part 107 continues to read as 
follows:

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


    2. Amend 49 CFR part 107 by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' and adding the wording 
``Associate Administrator'' each place it appears in the following 
sections:

107.1(a)
107.7(a), (c)
107.305(a), (c), (d)
107.307(a) introductory text, (b)
107.309(a), (b)(1)
107.310(a), (b) introductory text, (c)
107.317(c)
107.335
107.401(b)
107.402(b)(6), (c)
107.403(a), (b), (c)
107.404(a)(3), (b)
107.405(a) introductory text, (b) introductory text


    3. Amend Sec. 107.3 by adding a new definition for ``DOT or 
Department'' in appropriate alphabetical order to read as follows:


Sec. 107.3  Definitions.

* * * * *
    DOT or Department means U.S. Department of Transportation.
* * * * *


Sec. 107.117  [Amended]

    4. Amend Sec. 107.117 by making the following changes:
    a. In paragraph (d) introductory text, remove the wording ``U.S. 
Department of Transportation'' and add the word ``Department'' each 
place it appears.
    b. In paragraph (e), remove the wording ``Department of 
Transportation'' and add the word ``Department'' in its place.


Sec. 107.127  [Amended]

    5. Amend Sec. 107.127, paragraph (a), by removing the wording 
``Dockets Unit'' and adding the wording ``RSPA Records Center'' in its 
place.


Sec. 107.327  [Amended]

    6. Amend Sec. 107.327, the last sentence in paragraph (a)(1) 
introductory text, by removing the wording ``with Associate 
Administrator for Hazardous Materials Safety'' and adding the wording 
``with the Associate Administrator'' in its place.

PART 110--HAZARDOUS MATERIALS PUBLIC SECTOR TRAINING AND PLANNING 
GRANTS

    7. The authority citation for part 110 continues to read as 
follows:

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


    8. Amend 49 CFR part 110 by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' and adding the wording 
``Associate Administrator'' each place it appears in the following 
sections:

110.40(a)(7), (b)(6)
110.60(a)(4)
110.70(c) introductory text, (d)
110.100
110.110
110.120


    9. Amend 110.20 by adding a new definition for ``Associate 
Administrator'' in appropriate alphabetical order to read as follows:

[[Page 45378]]

Sec. 110.20  Definitions.

* * * * *
    Associate Administrator means the Associate Administrator for 
Hazardous Materials Safety, Research and Special Programs 
Administration.
* * * * *

PART 130--OIL SPILL PREVENTION AND RESPONSE PLANS

    10. The authority citation for part 130 continues to read as 
follows:

    Authority: 33 U.S.C. 1321.


Sec. 130.5  [Amended]

    11. Amend Sec. 130.5, the Note following the definition of 
``Liquid'', by removing the wording ``Dockets Unit'' and adding the 
wording ``RSPA Records Center'' in its place.

PART 171--GENERAL INFORMATION, REGULATIONS, AND DEFINITIONS

    12. The authority citation for part 171 continues to read as 
follows:

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


Sec. 171.1  [Amended]

    13. Amend Sec. 171.1, paragraph (a) introductory text, by removing 
the wording ``of Transportation''.


Sec. 171.7  [Amended]

    14. Amend Sec. 171.7:
    a. In paragraph (a)(2)(i), by removing the wording ``Dockets 
Branch, room 8419'' and adding the wording ``RSPA Records Center, Room 
8421'' in its place.
    b. In paragraph (a)(3) table, under Association of American 
Railroads, in the entry for ``AAR Manual of Standards and Recommended 
Practices, Section C--Part III, Specifications for Tank Cars M-1002, 
September 1996'' by removing the word ``September'' and adding the word 
``January'' in its place.

    15. Amend Sec. 171.8 by:
    a. Removing the definitions for ``Intermediate bulk container'' and 
``Maximum Allowable Working Pressure or MAWP''.
    b. Revising the definitions for ``Competent Authority'', ``EX 
number'', ``Gas'', ``Liquid'', ``Metered delivery service'' and ``UN 
standard packaging''.
    c. Adding new definitions for ``Associate Administrator'', ``DOT or 
Department'', ``Intermediate bulk container or IBC'', ``MAWP'' and ``UN 
Recommendations'' in appropriate alphabetical order to read as follows:


Sec. 171.8  Definitions and abbreviations.

* * * * *
    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 (see 
Sec. 171.7), has the same meaning as Competent Authority. For purposes 
of this subchapter, the Associate Administrator is the Competent 
Authority for the United States.
* * * * *
    DOT or Department means U.S. Department of Transportation.
* * * * *
    EX number means a number preceded by the prefix ``EX'', assigned by 
the Associate Administrator, to an item that has been evaluated under 
the provisions of Sec. 173.56 of this subchapter.
* * * * *
    Gas means a material which has a vapor pressure greater than 300 
kPa (43.5 psia) 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 psia).
* * * * *
    Intermediate bulk container or IBC means a rigid or flexible 
portable packaging, other than a cylinder or portable tank, which is 
designed for mechanical handling. Standards for IBCs manufactured in 
the United States are set forth in subparts N and O of part 178 of this 
subchapter.
* * * * *
    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 psia). 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'' (see Sec. 171.7).
* * * * *
    MAWP means maximum allowable working pressure.
* * * * *
    Metered delivery service means a cargo tank unloading operation 
conducted at a metered flow rate of 378.5 L (100 gallons) per minute or 
less through an attached delivery hose with a nominal inside diameter 
of 3.175 cm (1\1/4\ inches) or less.
* * * * *
    UN Recommendations means the UN Recommendations on the Transport of 
Dangerous Goods.
    UN standard packaging means a packaging conforming to standards in 
the UN Recommendations.
* * * * *


Sec. 171.10  [Amended]

    16. Amend Sec. 171.10, the table in paragraph (c)(2), by:
    a. Removing the period after the acronym ``TBq.'' in the first 
entry of the table, in column 3.
    b. Removing the acronym ``gr'' and adding the acronym ``g'' in its 
place in the fourth entry of the table, in columns 2 and 3.
    c. Removing the acronym ``l'' and adding the acronym ``L'' in its 
place in the seventh entry of the table, in columns 2 and 3.
    d. Removing the acronym ``ml'' and adding the acronym ``mL'' in its 
place in the seventh entry of the table, in columns 2 and 3.
    e. Removing the acronym ``ml'' and adding the acronym ``mL'' in its 
place in the abbreviations following the table.


Sec. 171.14  [Amended]

    17. Amend Sec. 171.14, paragraph (c), by removing the wording 
``Associate Administrator for Hazardous Materials Safety'' and adding 
the wording ``Associate Administrator'' in its place.


Sec. 171.20  [Amended]

    18. Amend Sec. 171.20, paragraphs (a) and (c), by removing the 
wording ``Associate Administrator for Hazardous Materials Safety'' and 
adding the wording ``Associate Administrator'' in its place.


Sec. 171.21  [Amended]

    19. Amend Sec. 171.21, paragraphs (a) and (b), by removing the 
wording ``of Transportation'' each place it appears.

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

    20. The authority citation for part 172 continues to read as 
follows:

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


    21. Amend 49 CFR part 172 by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' and adding the wording

[[Page 45379]]

``Associate Administrator'' each place it appears in the following 
sections:

172.101(b)(1), (d)(2), (f), (l)(2)
App. B to 172.101, paragraph 5.
172.102(c)(1) special provisions 26, 29, 53, 55, 60, 105, 118, 121, 
125, 129, 131, 133 and 136
172.102(c)(3) special provisions B46, B55, B61, B69, B77 and B81
172.102(c)(5) special provisions N10 and N72
172.102(c)(7)(ii) special provision T42
172.320(d)


    22. Amend 49 CFR part 172 by removing the word ``liters'' and 
adding the acronym ``L'' each place it appears in the following 
sections:

172.102(c)(1) special provision 36
172.102(c)(2) special provision A14
172.322(d)(1)(i), (d)(2)(i)


    23. Amend 49 CFR part 172 by removing the word ``kilograms'' and 
adding the acronym ``kg'' each place it appears in the following 
sections:

172.102(c)(2) special provisions A13 and A14
172.310(a)
172.322(d)(2)(ii)


    24. Amend 49 CFR part 172 by removing the acronym ``ml'' and adding 
the acronym ``mL'' each place it appears in the following sections:

172.102 (c)(1) special provisions 40 and 47
172.102(c)(5) special provision N76
172.312(c)(3)


    25. Amend 49 CFR part 172 by removing the wording ``safety relief 
device'' and adding the wording ``reclosing pressure relief device'' 
each place it appears in the following section:

172.102(c)(3) special provisions B42 and B76


    26. Amend Sec. 172.1 by removing the wording ``of Transportation''.


Sec. 172.101  [Amended]

    27. Amend Sec. 172.101, paragraphs (k)(2)(i), (k)(4) and (k)(5), by 
removing the wording ``three meters'' and adding the wording ``3 m'' 
each place it appears.


Sec. 172.102  [Amended]

    28. In Sec. 172.102:
    a. Amend paragraph (c)(1) by removing special provision 27.
    b. Amend paragraph (c)(2), special provision A13, by removing the 
wording ``50 milliliters'' and adding the wording ``50 mL'' in its 
place.
    c. In paragraph (c)(3):
    i. Amend special provisions B11 and B27 by removing the acronym 
``psi'' and adding the acronym ``psig'' each place it appears.
    ii. Amend special provision B60 by removing the wording ``safety 
relief device'' and adding the wording ``pressure relief device'' in 
its place.
    iii. Amend special provision B69 by removing the wording 
``intermediate bulk containers (FIBCs)'' and adding the acronym 
``IBCs'' in its place.
    iv. Amend special provision B103 by removing the wording 
``intermediate bulk container'' and adding the acronym ``IBC'' in its 
place.
    v. Amend special provisions B100 and B104 by removing the wording 
``Intermediate bulk containers'' and adding the acronym ``IBCs'' each 
place it appears.
    vi. Amend special provisions B101, B105, B106, B108 and B109 by 
removing the wording ``intermediate bulk containers'' and adding the 
acronym ``IBCs'' each place it appears.
    vii. Revise special provisions B45, B47, B57, the second sentence 
in special provision B49, and the fourth and fifth sentences in special 
provision 78 to read as follows:


Sec. 172.102  Special provisions.

* * * * *
    (c) * * *
    (3) * * *

Code/Special Provisions

* * * * *
    B45  Each tank must have a reclosing combination pressure relief 
device equipped with stainless steel or platinum rupture discs 
approved by the AAR Tank Car Committee.
* * * * *
    B47  Each tank may have a reclosing pressure relief device 
having a start-to-discharge pressure setting of 310 kPa (45 psig).
* * * * *
    B49  * * * Single unit tank car tanks must have a reclosing 
pressure relief device having a start-to-discharge pressure set at 
no more than 1551 kPa (225 psig).
* * * * *
    B57  Class 115A tank car tanks used to transport chloroprene 
must be equipped with a non-reclosing pressure relief device of a 
diameter not less than 305 mm (12 inches) with a maximum rupture 
disc burst pressure of 310 kPa (45 psig).
* * * * *
    B78  * * * If a tank car tank is equipped with a non-reclosing 
pressure relief device, the rupture disc must be perforated with a 
3.2 mm (0.13 inch) diameter hole. If a tank car tank is equipped 
with a reclosing pressure relief valve, the tank must also be 
equipped with a vacuum relief valve.
* * * * *


Sec. 172.203  [ Amended]

    29. Amend Sec. 172.203, paragraph (d)(7)(ii), by removing the 
wording ``6 meters'' and adding the wording ``6 m'' in its place.


Sec. 172.302  [Amended]

    30. Amend Sec. 172.302, paragraph (b)(2), by removing the wording 
``intermediate bulk containers'' and adding the acronym ``IBCs''.


Sec. 172.312  [Amended]

    31. Amend Sec. 172.312, paragraph (c)(2), by removing the wording 
``one liter'' and adding the wording ``1 L'' in its place.


Sec. 172.322  [Amended]

    32. Amend Sec. 172.322, paragraph (d)(1)(ii), by removing the 
wording ``500 grams'' and adding the wording ``500 g'' in its place.

    33. Amend Sec. 172.401 by revising paragraphs (c)(1), (c)(2), 
(c)(3) and (c)(4) to read as follows:


Sec. 172.401  Prohibited labeling.

* * * * *
    (c) * * *
    (1) The UN Recommendations (see Sec. 171.7 of this subchapter);
    (2) The IMDG Code (see Sec. 171.7 of this subchapter);
    (3) The ICAO Technical Instructions (see Sec. 171.7 of this 
subchapter);
    (4) The TDG Regulations (see Sec. 171.7 of this subchapter).
* * * * *


Sec. 172.514  [Amended]

    34. Amend Sec. 172.514, paragraph (c)(4), by removing the wording 
``intermediate bulk container'' and adding the acronym ``IBC''.


Sec. 172.602  [Amended]

    35. Amend Sec. 172.602, paragraph (a)(1), by removing the wording 
``as appropriate'' at the end of the paragraph and adding the wording 
``as appropriate (see Sec. 171.7 of this subchapter)'' in its place.

PART 173--SHIPPERS--GENERAL REQUIREMENTS FOR SHIPMENTS AND 
PACKAGINGS

    36. The authority citation for part 173 continues to read as 
follows:

    Authority: 49 U.S.C. 5101-5127, 44701; 49 CFR 1.45, 1.53.


    37. Amend 49 CFR part 173 by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' and adding the wording 
``Associate Administrator'' each place it appears in the following 
sections:

173.2a(c)(4)
173.4(c)
173.21(f)(3) introductory text, (i)
173.22(c)(2)
173.24(e)(3)(iii)
173.28(b)(2)(ii), (b)(7)(iv)(C)

[[Page 45380]]

173.34(c)(3), (e)(2)(i), (e)(2)(ii) introductory text, (e)(2)(ii)(A), 
(e)(2)(ii)(B), (e)(2)(iii), (e)(4)(iii) introductory text, (e)(7)(ii), 
(e)(8)(i)(C), (i) introductory text, (i)(4)(i), (l) introductory text, 
(l)(2), (l)(3)
173.51(a), (b)
173.52(a)
173.56(a)(2), (b)(1) introductory text, (b)(4), (c) introductory text, 
(f), (g), (i), (j) introductory text, ( j)(3)
173.58(d), (e)
173.59 Definition of ``Initiation, means of.''
173.62(c)(5)
173.115(a)(2)
173.120(d)
173.124(a)(1)(ii) introductory text, (a)(2)(i)(E), (a)(2)(iii)(D)
173.128(a)(3), (d)(1) introductory text 173.132(d)
173.159(f)
173.166(b)(1), (b)(3)(ii), (c), (d)(1)
173.171(d)
173.185(i)
173.214
173.222(b)(3)
173.224(c)(1), (d)
173.225(b)(4) introductory text, (c)(1)
173.245(a), (b)
173.300a(c), (d), (e), (g), (h), (i)
173.300b(c), (d), (e), (f), (g)
173.300c(a) introductory text, (b)
173.301(j)(1)(i)
173.305(c)(1)
173.306(f)(5)
173.315(i)(12)
173.316(d)
173.318(f)(4)
173.334(d)
173.340(a), (b), (c)(4)
173.411(c)
173.433(b)
173.457(b)(4)
173.471(e)
173.472(f)
173.473(a)(1)
173.476(a), (c) introductory text


    38. Amend 49 CFR part 173 by removing the wording ``intermediate 
bulk container'' and adding the acronym ``IBC'' each place it appears 
in the following sections:

173.35(a), (c), (d), (f)(1), (f)(2), (g), (h) introductory text, (h)(1) 
introductory text, (h)(1)(i), (h)(1)(ii), (h)(1)(iii), (h)(1)(iv), 
(h)(2) introductory text, (j), (k), (l) heading, (l)(1), (l)(2), 
(l)(3), (l)(4)
173.240(d)(1)(i)
173.241(d)(1)(i)(A), (d)(1)(ii)(A)
173.242(d)(1)(i)(A), (d)(1)(ii)(A)


    39. Amend 49 CFR part 173 by removing the wording ``intermediate 
bulk containers'' and adding the acronym ``IBCs'' each place it appears 
in the following sections:

173.35(h)(2), (j)
173.224(d)
173.225(b)(8) Notes 7 and 10 to table
173.240(d)(1)(i), (d)(2) introductory text, (d)(2)(i), (d)(2)(ii)
173.241(d)(2) introductory text, (d)(2)(i), (d)(2)(ii), (d)(2)(iii)
173.242(d)(1)(i)(A), (d)(2)(i), (d)(2)(ii), (d)(2)(iii), (d)(2)(iv)
173.243(d)(1), (d)(2)(i), (d)(2)(ii), (d)(2)(iii)


    40. Amend 49 CFR part 173 by removing the wording ``Intermediate 
bulk containers'' and adding the acronym ``IBCs'' each place it appears 
in the following sections:

173.225(e)(5) heading and introductory text
173.240(d) heading and introductory text
173.241(d) heading, (d)(1) introductory text
173.242(d) heading, (d)(1) introductory text, (d)(2) introductory text
173.143(d) heading, (d)(2) introductory text


    41. Amend 49 CFR part 173 by removing the acronym ``psi'' and 
adding the acronym ``psig'' each place it appears in the following 
sections:

173.3(c)(1)
173.27(c)(2)(i), (c)(3)(ii)
173.28(b)(2)(i)
173.31(c)(3), (e)(2) introductory text, (f)(1) introductory text, 
(f)(1)(i)(A)
173.34(d)(1)(ii), (d)(1)(iii), (d)(2), (e) Table and Note 2 to Table, 
(e)(4)(iii)(A), (e)(4)(v), (e)(10), (e)(12)
173.115(i)
173.159(d)(3)(ii)
173.172(a), (b)
173.181(a)
173.196(f)
173.226(b) introductory text
173.227(b) introductory text
173.301(g)(5)
173.303(b)
173.314(c) Table Notes 7 and 8, (o)
173.319(a)(4)(iii), (c), (e)(1), (e)(2)(i)
173.323(c)(1)
173.335(a)
173.337 introductory text


    42. Amend 49 CFR part 173 by removing the acronym ``psi'' and 
adding the acronym ``psia'' each place it appears in the following 
sections:

173.24a(b)(4)(i), (b)(4)(ii), (b)(4)(iii)
173.27(c)(2)(ii)(A), (c)(2)(ii)(B), (c)(2)(ii)(C)
173.35(h)(1)(ii), (h)(1)(iii)
173.115(a) introductory text, (a)(1), (a)(2), (c) introductory text, 
(j)


    43. Amend 49 CFR part 173 by removing the wording ``pounds per 
square inch'' and adding the acronym ``psi'' each place it appears in 
the following sections:

173.28(b)(4)(ii)
173.306(g)(3)
173.412(f)
173.465(d)(1)(ii)


    44. Amend 49 CFR part 173 by removing the word ``liters'' and 
adding the acronym ``L'' each place it appears in the following 
sections:

173.8(b), (c)
173.22(a)(3)(i)
173.125(c)(2)(ii)(B), (c)(2)(ii)(C), (d)(1), (d)(2)
173.306(f)(4)(i)
173.309(a)(3)(i)
173.315(k)(2), (n)(1) Table item (iv), (n)(1) Table item (v), 
(n)(5)(iii)
173.417(b)(1), Table 4 note 2


    45. Amend 49 CFR part 173 by removing the word ``liter'' and adding 
the acronym ``L'' each place it appears in the following sections:

173.124(c)
173.125(d)(3)
173.225(d)(3)
173.306(f)(4)(i), (f)(4)(ii)
173.403, Definition of ``Low Specific Activity (LSA) material'', 
paragraph (2)(i)
173.453(d)


    46. Amend 49 CFR part 173 by removing the wording ``one liter'' and 
adding the wording ``1 L'' each place it appears in the following 
sections:

173.306(a)(3)(i), (b)(1) introductory text
173.314(c), Table Note 1.


    47. Amend 49 CFR part 173 by removing the word ``kilograms'' and 
adding the acronym ``kg'' each place it appears in the following 
sections:

173.417(a)(6)(viii), (b)(2)(i), (b)(2)(ii), Table 5 note 1
173.419(c)
173.465(c)(3), (c)(4), (e)(1)
173.469(b)(2)(i), (b)(3)(iv)


    48. Amend 49 CFR part 173 by removing the word ``kilogram'' and 
adding the acronym ``kg'' each place it appears in the following 
section:

173.417(b)(2)(ii), Table 5 note 3


    49. Amend 49 CFR part 173 by removing the word ``meter'' and adding 
the acronym ``m'' each place it appears in the following sections:

173.416(f)
173.443(d)(1)
173.459(b) introductory text
173.465(c)(2), (c)(3), (c)(4), (e)(2)
173.469(b)(2)(i), (b)(3)(iv)


    50. Amend 49 CFR part 173 by removing the word ``meters'' and 
adding the acronym ``m'' each place it appears in the following 
sections:

173.189(d)(4)(iii)
173.315(n)(3) introductory text, (n)(3)(i)

[[Page 45381]]

173.427(a)(1)
173.441(b)(3)
173.447(a)
173.466(a)(1), (a)(2)
173.469(b)(1)


    51. Amend 49 CFR part 173 by removing the word ``centimeters'' and 
adding the acronym ``cm'' each place it appears in the following 
sections:

173.412(b)
173.417(b)(2)(ii), (b)(2), Table 5 note 5
173.465(b), (e)(1)
173.469(b)(2)(ii), (b)(3)(i), (b)(3)(v)


    52. Amend 49 CFR part 173 by removing the word ``centimeter'' and 
adding the acronym ``cm'' each place it appears in the following 
section:

173.417(b)(2)(ii)


    53. Amend 49 CFR part 173 by removing the word ``millimeters'' and 
adding the acronym ``mm'' each place it appears in the following 
sections:

173.417(b)(2)(ii), Table 5 note 6
173.469(b)(2)(ii), (b)(3)(v)


    54. Amend 49 CFR part 173 by removing the word ``millimeter'' and 
adding the acronym ``mm'' each place it appears in the following 
section:

173.417(a)(6)(iv)


    55. Amend 49 CFR part 173 by removing the acronym ``ml'' and adding 
the acronym ``mL'' each place it appears in the following sections:

173.4(a)(1)(i)
173.6(a)(3)
173.115(c)(2)
173.120(c)(3)
173.121(b)(2)(ii)
173.133(b)(1)(i), (b)(1)(ii), (b)(1)(iv) Table, (b)(2)(i)(A), 
(b)(2)(ii)(A), (b)(2)(iii)(A), (b)(2)(iv)(A), (b)(2)(iv)(B)
173.152(b)(3)(i), (b)(3)(ii), (b)(4)(i)
173.153(c)(2)
173.161(b)
173.194(a), (b)(1), (b)(2)
173.220(b)(1), (b)(4)
173.308(a)(1)
173.309(a)(3)(i)
173 App H, 3. Apparatus (e), 5. Procedure (d)


    56. Amend 49 CFR part 173 by removing the wording ``safety relief'' 
and adding the wording ``pressure relief'' each place it appears in the 
following sections:

173.314(j), (l), (n), (o)
173.315(i)(2), (i)(3), (i)(5), (i)(6), (i)(7), (i)(8), (i)(9), (i)(11), 
(i)(13)


    57. Amend 49 CFR part 173 by removing the wording ``cargo tank'' 
and adding the wording ``cargo tank motor vehicle'' each place it 
appears in the following sections:

173.315(n)(1) introductory text, (n)(2)(ii), (n)(3)(ii), (o)(2), (o)(3)


    58. Amend 49 CFR part 173 by removing the wording ``cargo tanks'' 
and adding the wording ``cargo tank motor vehicles'' each place it 
appears in the following sections:

173.315(k)(5), (n) heading, (n)(3) heading, (o) heading


Sec. 173.7  [Amended]

    59. Amend Sec. 173.7(c), by removing the wording ``one gram'' and 
adding the wording ``1 g'' in its place.


Sec. 173.13  [Amended]

    60. Amend Sec. 173.13, paragraph (c)(1)(i), by removing the wording 
``1.2 liters'' in the first sentence and adding the wording ``1.2 L'' 
in its place and by removing the wording ``one liter'' in the last 
sentence and adding the wording ``1 L'' in its place.

    61. Amend Sec. 173.21 by revising paragraph (f)(3)(ii) to read as 
follows:


Sec. 173.21  Forbidden materials and packages.

* * * * *
    (f) * * *
    (3) * * *
    (ii) For transportation by vessel, shipments are authorized in 
accordance with the control-temperature requirements of Section 21 of 
the General Introduction of the IMDG Code (see Sec. 171.7 of this 
subchapter).
* * * * *

    62. Amend Sec. 173.22 by revising paragraph (a)(2)(iii) to read as 
follows:


Sec. 173.22  Shipper's responsibility.

    (a) * * *
    (2) * * *
    (iii) National or international regulations based on the UN 
Recommendations, as authorized in Sec. 173.24(d)(2);
* * * * *


Sec. 173.22a  [Amended]

    63. Amend Sec. 173.22a, paragraph (b), by removing the wording 
``Docket Section'' in the last sentence and adding the wording ``RSPA 
Records Center'' in its place.

    64. Amend Sec. 173.24 by revising paragraphs (d)(2) introductory 
text and (d)(2)(i) to read as follows:


Sec. 173.24  General requirements for packagings and packages.

* * * * *
    (d) * * *
    (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 (see Sec. 171.7 of this subchapter), 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 and the requirements of this subpart, including reuse 
provisions;
* * * * *

    65. Amend Sec. 173.31 by revising paragraph (b)(2)(ii) to read as 
follows:


Sec. 173.31  Use of tank cars.

* * * * *
    (b) * * *
    (2) * * *
    (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 reclosing pressure relief 
devices. However, a tank car built before January 1, 1991, and equipped 
with a non-reclosing 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, 
rupture discs may not have any perforated holes to allow for venting.
* * * * *


Sec. 173.31  [Amended]

    66. Amend Sec. 173.31, paragraph (d)(1)(vi), by removing the 
wording ``frangible disc in non-closing'' and adding the wording 
``rupture disc in non-reclosing'' in its place.


Sec. 173.35  [Amended]

    67. Amend Sec. 173.35, in the heading by removing the wording 
``intermediate bulk containers'' and the parentheses around the acronym 
``IBCs'', and in paragraph (k) by removing the word ``flashpoint'' and 
adding the wording ``flash point'' in its place.

    68. Amend Sec. 173.61 by revising paragraph (e)(2) to read as 
follows:


Sec. 173.61  Mixed packaging requirements.

* * * * *
    (e) * * *
    (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

[[Page 45382]]

mixed package of Division 1.2 explosives and Division 1.4 explosives, 
compatibility group D, must be treated as 1.2D explosives. However, 
when 1.5D explosives are packed together with 1.2D explosives, the 
whole package must be treated as 1.1D explosives.
* * * * *


Sec. 173.62  [Amended]

    69. Amend Sec. 173.62(c) by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' in Packing Instruction 
101 in the ``Table of Packing Methods'' and in Exception 1, column 1, 
and adding the wording ``Associate Administrator'' in its place.

    70. Amend Sec. 173.115(g), by revising the first sentence to read 
as follows:


Sec. 173.115  Class 2, Divisions 2.1, 2.2, and 2.3--Definitions.

* * * * *
    (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 psia). * * *
* * * * *

    71. Amend Sec. 173.132 by revising paragraph (a)(1)(iii)(B) to read 
as follows:


Sec. 173.132  Class 6, Division 6.1--Definitions.

    (a) * * *
    (1) * * *
    (iii) * * *
    (B) A material with a saturated vapor concentration in air at 20 
deg.C (68  deg.F) greater than or equal to 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/
m3 ; or
* * * * *


Sec. 173.150  [Amended]

    72. Amend Sec. 173.150, paragraph (d)(2), by removing the wording 
``five liters'' and adding the wording ``5 L'' in its place.


Sec. 173.225  [Amended]

    73. Amend Sec. 173.225, paragraph (e)(3)(i)(B), by removing the 
wording ``self-reclosing pressure'' and adding the wording ``reclosing 
pressure'' in its place.

    74. Amend Sec. 173.240 by revising paragraph (d)(1)(vi) to read as 
follows:


Sec. 173.240  Bulk packaging for certain low hazard solid materials.

* * * * *
    (d) * * *
    (1) * * *
    (vi) Wooden: 11C, 11D, or 11F.
* * * * *

    75. Amend Sec. 173.242 by revising paragraph (d)(1)(ii)(F) to read 
as follows:


Sec. 173.242  Bulk packagings for certain medium hazard liquids and 
solids, including solids with dual hazards.

* * * * *
    (d) * * *
    (1) * * *
    (ii) * * *
    (F) Wooden: 11C, 11D, or 11F.
* * * * *


Sec. 173.247  [Amended]

    76. Amend Sec. 173.247, in paragraph (g)(1)(iii)(C) by removing the 
word ``nonreclosing'' and adding the word ``non-reclosing'' in its 
place, and in paragraph (g)(1)(iv), by removing the wording ``frangible 
discs'' and adding the wording ``rupture discs'' in its place.


Sec. 173.300a  [Amended]

    77. Amend Sec. 173.300a, paragraph (a)(2), by removing the wording 
``of Transportation''.


Sec. 173.302  [Amended]

    78. Amend Sec. 173.302(c)(3) by:
    a. Removing the wording ``S = wall stress, pounds per square 
inch;'' and adding the wording ``S = wall stress in psi;'' each place 
it appears.
    b. Removing the wording ``P = test pressure, pounds per square 
inch'' and adding the wording ``P = test pressure in psig'' each place 
it appears.

    79. Amend Sec. 173.304(a)(2) by revising the first sentence in Note 
4 to the table to read as follows:


Sec. 173.304  Charging of cylinders with liquefied compressed gas.

    (a) * * *
    (2) * * *

    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 psig. * * *

* * * * *

    80. In Sec. 173.304:
    a. Amend paragraph (e)(1) by removing the wording ``pounds per 
square inch absolute'' and adding the acronym ``psia'' in its place.
    b. Amend paragraph (f)(1) by removing the wording ``psi, absolute'' 
and adding the acronym ``psia'' each place it appears.


Sec. 173.306  [Amended]

    81. Amend Sec. 173.306(b) heading by removing the word 
``Exemptions'' and adding the word ``Exceptions'' in its place.


Sec. 173.314  [Amended]

    82. Amend Sec. 173.314(g)(4), by removing the wording ``safety 
relief device'' and adding the wording ``reclosing pressure relief 
device'' in its place.

    83. Amend Sec. 173.314 by revising the last two sentences in 
paragraph (l) and the second sentence in paragraph (o) to read as 
follows:
* * * * *
    (l) * * * A threaded solid plug must seal each valve outlet. In 
addition, a metal cover must protect all valves.
* * * * *
    (o) * * * Each tank car must be equipped with one reclosing 
pressure relief valve having a start-to-discharge pressure not to 
exceed 75 percent of the tank test pressure and one non-reclosing 
pressure relief valve having a rupture disc design to burst at a 
pressure less than the tank test pressure. * * *


Sec. 173.315  [Amended]

    84. In Sec. 173.315:
    a. Amend paragraph (i)(10) by removing the wording ``frangible disc 
devices'' and adding the wording ``non-reclosing pressure relief 
devices'' in its place.
    b. Amend paragraph (i)(13) by removing the word ``tanks'' and 
adding the word ``tank'' in its place.
    c. Amend paragraph (n)(1)(v), column (4) of the chart, by removing 
the wording ``paragraph (n)(3) or'' and adding the wording ``paragraph 
(n)(2) or'' in its place.

    85. Amend Sec. 173.315 by revising the first sentence of paragraph 
(i) introductory text and the first sentence of paragraph (i)(4) to 
read as follows:


Sec. 173.315  Compressed gases in cargo tanks and portable tanks.

* * * * *
    (i) Each tank must be provided with one or more pressure relief 
devices which, unless otherwise specified in this part, must be of the 
spring-loaded type. * * *
* * * * *
    (4) Each pressure relief valve must be plainly and permanently 
marked with the pressure in psig 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 psia, and with the 
manufacturer's

[[Page 45383]]

name or trade name and catalog number. * * *
* * * * *


Sec. 173.319  [Amended]

    86. Amend Sec. 173.319, paragraph (e)(4), by removing the wording 
``frangible disc'' the first time it appears and adding the wording 
``rupture disc'' in its place, and removing the wording ``with a new 
frangible disc''.


Sec. 173.323  [Amended]

    87. Amend Sec. 173.323, paragraph (i), by removing the wording 
``safety relief valve or frangible disc'' in the second sentence and 
adding the wording ``pressure relief valve or rupture disc'' in its 
place.


Sec. 173.403  [Amended]

    88. Amend Sec. 173.403 by removing the wording ``1.5 meters'' in 
the definition for ``Freight container'' and adding the wording ``1.5 
m'' in its place, and removing the wording ``one meter'' in the 
definition for ``Transport index'' and adding the wording ``1 m'' each 
place it appears.

    89. Amend Sec. 173.411 by revising paragraph (b)(4)(ii) to read as 
follows:


Sec. 173.411  Industrial packagings.

* * * * *
    (b) * * *
    (4) * * *
    (ii) Be capable of withstanding a test pressure of 265 kPa (37.1 
psig);
* * * * *


Sec. 173.425  [Amended]

    90. Amend Sec. 173.425, Table 7, by removing the wording ``TBq/
liter'' in the first column and adding the wording ``TBq/L'' in its 
place.


Sec. 173.453  [Amended]

    91. Amend Sec. 173.453, paragraphs (a), (b)(2), (b)(3) and (d), by 
removing the word ``grams'' and adding the acronym ``g'' each place it 
appears, and paragraph (e), by removing the wording ``one kilogram'' 
and adding the wording ``1 kg'' in its place.

    92. The authority citation for part 174 continues to read as 
follows:

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

PART 174--[AMENDED]

    93. Amend 49 CFR part 174 by removing the wording ``Class A'' each 
place it appears in the following sections:

174.16(b)(1), (b)(2), (b)(3)
174.81(e)(5), (g)(3)(iv), (g)(3)(v), (h), (i)
174.83(f)
174.84
174.85(d), Table Note ``Group 1''
174.101(a), (c), (d), (h), (l), (n)
174.102(a), (b)
174.103(a)
174.104 heading, (a), (b) introductory text, (c), (d), (e), (f)
174.105
174.106 heading, (a), (b), (c)
174.110


    94. Amend 49 CFR part 174 by removing the wording ``Class C'' each 
place it appears in the following sections:

174.81(g)(3)(iv), (h)
174.115 heading, (a), (b), (b)(3)


Sec. 174.63  [Amended]

    95. Amend Sec. 174.63, in the heading by removing the wording 
``intermediate bulk containers'' and adding the acronym ``IBCs'' in its 
place and in paragraph (a) by removing the wording ``intermediate bulk 
container'' and adding the acronym ``IBC'' in its place.


Sec. 174.81  [Amended]

    96. Amend Sec. 174.81, in paragraph (e)(5) by removing the wording 
``(blasting agents)'' and in paragraph (i) by removing the wording 
``(blasting agent)''.


Sec. 174.85  [Amended]

    97. Amend Sec. 174.85(d), by removing the wording ``Class B and C'' 
in the note ``Group 2'' following the table.


Sec. 174.101  [Amended]

    98. Amend Sec. 174.101, paragraphs (b) and (o) introductory text, 
by removing the wording ``Class A or Class B'' each place it appears.


Sec. 174.112  [Amended]

    99. In 174.112:
    a. Amend the heading and paragraphs (a), (b), (c) introductory text 
and (c)(3) by removing the wording ``devices corresponding to Class B'' 
each place it appears.
    b. Amend the heading and paragraphs (a), (b), (c) introductory text 
and (c)(3) by removing the wording ``(Class B explosive) materials'' 
each place it appears.


Sec. 174.700  [Amended]

    100. In Sec. 174.700:
    a. Amend paragraph (c) by removing the wording ``0.9 meter'' and 
adding the wording ``0.9 m'' in its place, and by removing the wording 
``4.5 meters'' and adding the wording ``4.5 m'' in its place.
    b. Amend paragraph (d) by removing the wording ``6 meters'' and 
adding the wording ``6 m'' in its place.


Sec. 174.715  [Amended]

    101. Amend Sec. 174.715, paragraph (b), by removing the wording ``1 
meter'' and adding the wording ``1 m'' in its place in the first 
sentence, and by removing the wording ``7.6 centimeters'' and adding 
the wording ``7.6 cm'' in its place in the last sentence.

PART 175--CARRIAGE BY AIRCRAFT

    102. The authority citation for part 175 continues to read as 
follows:

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

PART 175--[AMENDED]

    103. Amend 49 CFR part 175 by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' and adding the wording 
``Associate Administrator'' each place it appears in the following 
sections:

175.10(a)(2), (a)(15)
175.701(c) introductory text


    104. Amend 49 CFR part 175 by removing the word ``liters'' and 
adding the acronym ``L'' each place it appears in the following 
sections:

175.10(a)(4)(iv), (b)(2)
175.85(i)(3)
175.310 introductory text, (c)(1), (c)(2), (c)(3)
175.320(a) Table


    105. Amend 49 CFR part 175 by removing the word ``meters'' and 
adding the acronym ``m'' each place it appears in the following 
sections:

175.701(b)(3)
175.702(b)(2)(i)(A), (b)(2)(i)(B)

Sec. 175.10  [Amended]

    106. Amend Sec. 175.10, paragraphs (a)(4)(ii) and (a)(4)(iv), by 
removing the acronym ``ml'' and adding the acronym ``mL'' in its place.


Sec. 175.78  [Amended]

    107. Amend Sec. 175.78, paragraph (a), by removing the acronym 
``ICAO'' each place it appears in Table 1 and in Note 4; and by 
revising Note 3 to Table 1 to read as follows:
    (a) * * *

                                 Table 1
------------------------------------------------------------------------
 
-------------------------------------------------------------------------
 
                  *        *        *        *        *
 
------------------------------------------------------------------------

* * * * *

    Note 3: For import or export shipment, explosives other than 
explosives of Division 1.4, Compatibility Group S, that do not 
belong to the same compatibility group according to the ICAO 
Technical Instructions

[[Page 45384]]

may not be stowed together, except that compatibility groups C, D 
and E may be stowed together. Explosives of Division 1.4, 
Compatibility Group S may be stowed with explosives of all 
compatibility groups with the exception of A and L.

* * * * *


Sec. 175.85  [Amended]

    108. Amend Sec. 175.85, paragraph (c)(1)(iv), by removing the word 
``flashpoint'' and adding the wording ``flash point'' in its place.


Sec. 175.320  [Amended]

    109. Amend Sec. 175.320, paragraph (a), by removing the wording 
``(Class A)'' and ``(Class C)'' each place it appears in column 2 of 
the table; and by revising the second entry under ``High explosives'' 
in column 3 of the table to read as follows:
    (a) * * *

----------------------------------------------------------------------------------------------------------------
               Material                         Class                              Conditions
----------------------------------------------------------------------------------------------------------------
 
*                  *                  *                  *                  *                  *
                                                        *
High explosives......................  *    *    *............  *    *    *
                                                                Ammonium nitrate-fuel oil mixtures. Explosive,
                                                                 blasting, Type A, B, C, D and E (Div. 1.1D or
                                                                 1.5D) or Agent, blasting, Type B (Div. 1.5D);
                                                                 Substances, explosive, very insensitive,
                                                                 n.o.s., or Substances, EVI, n.o.s. (Div. 1.5D);
                                                                 Articles, explosive, extremely insensitive or
                                                                 Articles, EEI (Div. 1.6N).
 
*                  *                  *                  *                  *                  *
                                                        *
----------------------------------------------------------------------------------------------------------------

* * * * *

PART 176--CARRIAGE BY VESSEL

    110. The authority citation for part 176 continues to read as 
follows:

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

PART 176--[AMENDED]

    111. Amend 49 CFR part 176 by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' and adding the wording 
``Associate Administrator'' each place it appears in the following 
sections:

176.166(b), Table Footnote ``d''
176.168(d)
176.704(e)(2)


    112. Amend 49 CFR part 176 by removing the wording ``Class A'' each 
place it appears in the following sections:

176.9 introductory text
176.144(c)
176.194(e)

    113. Amend 49 CFR part 176 by removing the wording ``Class A and 
B'' each place it appears in the following sections:

176.4(b) introductory text, (c)
176.99
176.104(h) introductory text, (j) introductory text
176.128(c)
176.192(a)
176.194(c)

    114. Amend 49 CFR part 176 by removing the wording ``Class B'' each 
place it appears in the following sections:
176.144(c)
    115. Amend 49 CFR part 176 by removing the wording ``Class C'' each 
place it appears in the following sections:

176.83(a)(6)
176.112
176.116(e)(3)
176.142(b)(1)
176.145(b)
176.150(a), (b)
176.164(c)
176.166(a)(1)
176.172(c)

    116. Amend 49 CFR part 176 by removing the acronym ``psi'' and 
adding the acronym ``psig'' each place it appears in the following 
sections:

176.340(b)(7), (b)(8)
176.905(i)(5)


    117. Amend 49 CFR part 176 by removing the word ``meters'' and 
adding the acronym ``m'' each place it appears in the following 
sections:

176.83(c)(2)(ii), (c)(2)(iii), (c)(2)(iv), (c)(2)(v), (f)(4) Table 
footnote, (g)(3) Table 176.704(f), Notes b and d to Table III
176.905(a)(5)


    118. Amend 49 CFR part 176 by removing the word ``liters'' and add 
the acronym ``L'' each place it appears in the following sections:

176.84(b), Code 115 in the Table
176.315(a)
176.340(b)(2)
176.905(i)(2)


    119. Amend 49 CFR part 176 by removing the wording ``(blasting 
agents)'' each place it appears in the following sections:

176.99
176.400 heading, (c), (d)
176.410 heading, (a)(1), (c) introductory text
176.415 heading, (b)(5), (c)(1), (c)(5)


    120. Amend Sec. 176.30 by revising paragraph (a)(5)(ii) to read as 
follows:


Sec. 176.30  Dangerous cargo manifest.

    (a) * * *
    (5) * * *
    (ii) The IMDG Code.
* * * * *


Sec. 176.36  [Amended]

    121. Amend Sec. 176.36, paragraph (b), by removing the wording ``of 
Transportation''.


Sec. 176.76  [Amended]

    122. Amend Sec. 176.76, in paragraph (h)(5) by removing the wording 
``five meters'' and adding the wording ``5 m'' in its place, and in 
paragraph (i) by removing the word ``flashpoint'' and adding the 
wording ``flash point'' in its place.

    123. Amend Sec. 176.83, paragraphs (b), (f) and (g), by revising 
the table headings to read as follows:


Sec. 176.83  Segregation.

* * * * *
    (b) * * *
Table 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.]
* * * * *
    (f) * * *
Table 176.83(f).--Segregation of Containers on Board Container Ships
* * * * *
    (g) * * *
Table 176.83(g).--Segregation of Transport Units on Board Trailerships 
and Trainships
* * * * *

[[Page 45385]]

Sec. 176.100  [Amended]

    124. Amend Sec. 176.100 by removing the wording ``Classes A and B'' 
each place it appears.


Sec. 176.104  [Amended]

    125. Amend Sec. 176.104, paragraph (i), by removing the wording 
``(Class A and B explosive materials)'' in the first sentence and 
adding the wording ``(explosive) materials'' in its place.

    126. Amend Sec. 176.116, paragraph (e)(2), by revising the second 
sentence to read as follows:


Sec. 176.116  General stowage conditions for Class 1 (explosive) 
materials.

* * * * *
    (e) * * *
    (2) * * * Division 1.1, 1.2, 1.3, or 1.5 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.
* * * * *

    127. Amend Sec. 176.144, paragraph (a), by revising the table 
heading to read as follows:


Sec. 176.144  Segregation of Class 1 (explosive) materials.

    (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]
* * * * *

    128. Amend Sec. 176.166, paragraph (b), by revising the table 
heading to read as follows:


Sec. 176.166  Transport of Class 1 (explosive) materials on passenger 
vessels.

* * * * *
    (b) * * *
Table 176.166(b).--Stowage Arrangements in Passenger Vessels
* * * * *


Sec. 176.194  [Amended]

    129. Amend Sec. 176.194, paragraph (c), by removing the wording 
``(Class A explosive)'' and adding ``(explosive)'' in its place and by 
removing the wording ``Class A or B'' in the last sentence.


Sec. 176.315  [Amended]

    130. Amend Sec. 176.315, paragraph (a), by removing the word 
``liter'' and adding the acronym ``L'' each place it appears.

Subpart J--[Amended]

    131. Amend Subpart J, the heading, by removing the wording 
``(Blasting Agents)''.


Sec. 176.415  [Amended]

    132. Amend Sec. 176.415, paragraph (a)(1), by removing the wording 
``(blasting agent)''.


Sec. 176.700  [Amended]

    133. Amend Sec. 176.700, paragraph (c), by removing the wording 
``six meters'' and adding the wording ``6 m'' in its place.


Sec. 176.704  [Amended]

    134. Amend Sec. 176.704, in paragraph (b) by removing the wording 
``two meters'' and adding the wording ``2 m'' in its place, and in 
paragraph (d) by removing the wording ``six meters'' and adding the 
wording ``6 m'' in its place.


Sec. 176.905  [Amended]

    135. Amend Sec. 176.905, paragraphs (i)(1) and (i)(2), by removing 
the word ``flashpoint'' and adding the wording ``flash point'' each 
place it appears.

PART 177--CARRIAGE BY PUBLIC HIGHWAY

    136. The authority citation for part 177 continues to read as 
follows:

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

PART 177--[AMENDED]

    137. Amend 49 CFR part 177 by removing the wording ``Class A'' each 
place it appears in the following sections:

177.835(c) introductory text
177.848(e)(5), (g)(3)(v), (h), (i)


    138. Amend 49 CFR part 177 by removing the wording ``Class C'' each 
place it appears in the following sections:

177.848(h)
177.870(d)


    139. Amend 49 CFR part 177 by removing the word ``liters'' and 
adding the acronym ``L'' each place it appears in the following 
sections:

177.840(h) introductory text, (p)(1), (p)(2) introductory text


    140. Amend 49 CFR part 177 by removing the word ``meters'' and 
adding the acronym ``m'' each place it appears in the following 
sections:

177.834(i)(3)
177.840(o), (p)(2) introductory text, (q)(1)
177.842(b)(2), (f)

Sec. 177.835  [Amended]

    141. Amend Sec. 177.835, paragraphs (f) and (j), by removing the 
wording ``Class A or Class B'' each place it appears.

Sec. 177.840  [Amended]

    142. In Sec. 177.840:
    a. Amend paragraph (d), in the heading by removing the wording 
``cargo tanks'' and adding the wording ``cargo tank motor vehicles'' in 
its place, and in the first sentence, by removing the wording ``cargo 
tank'' and adding the wording ``cargo tank motor vehicle'' in its 
place.
    b. Amend paragraph (e) by removing the wording ``cargo tanks'' and 
adding the wording ``cargo tank motor vehicles'' in its place.
    c. Amend paragraph (g) by removing the wording ``cargo tank'' and 
adding the wording ``cargo tank motor vehicle'' in its place.
    d. Amend paragraph (i), in the first sentence by removing the 
wording ``cargo tank'' and adding the wording ``cargo tank motor 
vehicle'' in its place and by removing the wording ``tank'' and add the 
wording ``cargo tank'' in its place, and in the last sentence by 
removing the word ``tank'' and adding the wording ``cargo tank'' in its 
place.
    e. Amend paragraph (m), the heading, by removing the wording 
``Cargo tank'' and adding the wording ``Cargo tank motor vehicle'' in 
its place.
    f. Amend paragraph (r)(2), the last sentence, by removing the 
wording ``cargo tanks'' and adding the wording ``cargo tank motor 
vehicles'' in its place.
    g. Amend paragraph (t), in the first sentence by removing the 
wording ``cargo tank'' and adding the wording ``cargo tank motor 
vehicle'' in its place, and in the last sentence by removing the 
wording ``cargo tanks'' and adding the wording ``cargo tank motor 
vehicles'' in its place.
    h. Amend paragraph (u), by removing the wording ``cargo tanks'' and 
adding the wording ``cargo tank motor vehicles'' in its place, and by 
removing the wording ``cargo tank'' and adding the wording ``cargo tank 
motor vehicle'' in its place.


Sec. 177.848  [Amended]

    143. Amend Sec. 177.848, paragraph (e)(5), by removing the wording 
``(blasting agents)'' and paragraph (i), by removing the wording 
``(blasting agent)''.


Sec. 177.854  [Amended]

    144. Amend Sec. 177.854, paragraphs (f)(1) and (g)((2)(iv), by 
removing the wording ``Class A or B''.


[[Page 45386]]



PART 178--SPECIFICATIONS FOR PACKAGINGS

    145. The authority citation for part 178 continues to read as 
follows:

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


    146. Amend 49 CFR part 178 by removing the wording ``Associate 
Administrator for Hazardous Materials Safety'' and adding the wording 
``Associate Administrator'' each place it appears in the following 
sections:

178.3(a)(2), (b)(2)
178.33-9(a)(2)
178.33a-9(a)(2)
178.270-2(c)
178.352-6(a)(3)
178.358-5(b)(5)
178.362-6(b)
178.503(a)(8), (c)(1)(ii)
178.509(b)(1)
178.601(e), (g)(7), (h), (i) introductory text, (i)(2), (k)
178.603(b)
178.604(b)(2)
178.605(b)
178.606(b), (c)(1)
178.608(b)(5)
178.703(a)(1)(vi)
178.801(e)(2) introductory text, (h), (i), (j) introductory text, 
(j)(2)
178.813(c)


    147. Amend 49 CFR part 178 by removing the words ``Intermediate 
Bulk Container'' and adding ``IBC'' each place it appears in the 
following sections:

Subpart N heading


    148. Amend 49 CFR part 178 by removing the wording ``intermediate 
bulk container'' and adding the acronym ``IBC'' each place it appears 
in the following sections:

178.700(c) introductory text
178.702(b)
178.703(a)(1) introductory text, (a)(1)(ii), (a)(1)(v), (a)(2)(i), 
(a)(2)(ii), (a)(2)(iii), (a)(2)(iv), (b) introductory text, (b)(1) 
introductory text, (b)(2) introductory text, (b)(3), (b)(4), (b)(5), 
(b)(6) introductory text, (b)(6)(i), (b)(6)(ii)
178.704 heading, (a), (b), (c), (d) introductory text, (e)
178.705(a) introductory text, (b)(1), (b)(2), (c)(1)(iii) introductory 
text, (c)(2)(ii)
178.706(a) introductory text, (c)(1), (c)(4)
178.707(a)(1) introductory text, (b) introductory text, (b)(1), (c)(2), 
(c)(3)(iv), (c)(4) introductory text, (c)(5) introductory text, 
(c)(5)(i), (c)(5)(ii), (c)(5)(iv)
178.708(b) introductory text, (c)(3), (c)(4) introductory text, 
(c)(4)(i), (c)(4)(ii)
178.709(a) introductory text, (c)(2) introductory text, (c)(2)(i), 
(c)(3), (c)(4) introductory text, (c)(4)(i), (c)(4)(ii)
178.710(a) introductory text, (b)(3), (c)(1)
178.801(b), (c)(1), (c)(2), (c)(3), (c)(4), (c)(5), (c)(6), (c)(7) 
introductory text, (c)(7)(ii), (d), (e)(1), (e)(2)(i), (e)(2)(ii), 
(f)(1) introductory text, (f)(1)(i), (f)(1)(ii), (f)(2), (g), (h), (i), 
(j)(2), (k), (l)(1), (l)(2)
178.803 introductory text, Table Notes 4, 5, and 7
178.810(a), (c), (d)(3)(i), (e)
178.811(a), (b), (c), (d)
178.812(a), (b)(1), (b)(2), (c)(1), (c)(2) introductory text, (d)
178.813(a), (b), (c), (d)
178.814(a), (c), (d)(1), (d)(2), (d)(4), (d)(5) introductory text, 
(d)(5)(i)(A), (d)(5)(ii)(A), (d)(5)(ii)(B), (e)(1), (e)(3)
178.815(a), (b)(1), (b)(2), (c)(3), (c)(4)(i), (c)(4)(ii), (d), (e)(1), 
(e)(2)
178.816(a), (b), (c)
178.817(b), (c), (d)
178.818(a), (b), (c), (d)
178.819(a), (b)(1), (b)(2), (b)(3), (c)


    149. Amend 49 CFR part 178 by removing ``Intermediate bulk 
container'' and adding ``IBC'' each place it appears in the following 
sections:

178.702 heading, (a) introductory text, (a)(1), (a)(2)
178.704(f)
178.801(c)(1)


    150. Amend 49 CFR part 178 by removing the wording ``intermediate 
bulk containers'' and adding the acronym ``IBCs'' each place it appears 
in the following sections:

178.700(a)
178.702(b)
178.703 heading, (a)(1)(i), (a)(1)(iii)(A), (a)(1)(iii)(B), 
(a)(1)(iii)(C), (a)(1)(vii), (a)(1)(viii)
178.705 heading, (a) introductory text, (b) introductory text, (c) 
introductory text, (c)(1)(ii), (c)(2) introductory text
178.706 heading, (a) introductory text, (a)(1), (a)(3), (a)(5), (b), 
(c) introductory text, (c)(3), (c)(4)
178.707 heading, (a)(1) introductory text, (a)(1)(i), (a)(1)(ii), 
(a)(1)(iii), (a)(1)(iv), (a)(1)(v), (a)(1)(vi), (c) introductory text, 
(c)(2), (c)(3) introductory text, (c)(3)(iv), (c)(5)(iv)
178.708 heading, (a), (b)(1), (c) introductory text, (c)(1), (c)(2) 
introductory text, (c)(2)(ii), (c)(4)(iv)
178.709 heading, (a) introductory text, (b) introductory text, (b)(1), 
(c) introductory text, (c)(1), (c)(2)(iv) , (c)(4)(iv)
178.710 heading, (a) introductory text, (b) introductory text, (b)(1), 
(c) introductory text, (c)(2), (c)(4), (c)(5), (c)(6), (c)(7)
178.800
178.801(a), (g), (h), (i), (l)(1)
178.802 heading, (a) introductory text, (c)
178.803 heading, Table Notes 1, 2, 3 and 6
178.810(b)(1), (b)(2), (b)(3), (d)(1) introductory text
178.812(a)
178.814(b), (c), (d)(3), (e)(1), (e)(2)
178.815(b)(1), (c)(1), (c)(2), (c)(4) introductory text, (c)(4)(i), 
(d), (e)(1), (e)(2), (e)(3)
178.816(d) introductory text, (e)
178.817(a), (d)


    151. Amend 49 CFR part 178 by removing ``Intermediate Bulk 
Containers'' in the heading for subpart O and adding ``IBCs'' in its 
place.


    152. Amend 49 CFR part 178 by removing ``Intermediate bulk 
containers'' and adding ``IBCs'' each place it appears in the following 
sections:

178.704(a)
178.705(c)(2)(i)


    153. Amend 49 CFR part 178 by removing the wording ``pounds per 
square inch'' and adding the acronym ``psig'' each place it appears in 
the following sections:

178.36(a)(1), (a)(2), (e)(1), (f), (i)(2), (k)(3)(iii)
178.37(a)(1), (a)(2) introductory text, (e)(1), (i)(2)
178.38(a), (e)(1), (i)(2)
178.39(a), (i)(2)
178.42(a), (f)(1), (f)(2), (f)(3)
178.44(a), (i)(2)
178.47(a), (j)(2)
178.50(a), (i)(2)
178.51(a) introductory text
178.53(a), (h)(2)
178.55(a), (i)(2)
178.56(a), (i)(2)
178.57(a) introductory text
178.58(a), (i)(2)
178.59(a) introductory text, (h)(4)
178.60(a), (j)(4)
178.68(a)
178.270-11(c)(4)


    154. Amend 49 CFR part 178 by removing the wording ``pounds per 
square inch'' and adding the acronym ``psi'' each place it appears in 
the following sections:

178.37(k)(3)(iii)
178.38(f), (k)(3)(iii)
178.39(k)(3)(iii)
178.44(f)(2), (m)(3)(iii)
178.45(d)(1), (d)(2)(ii)
178.50(f)(1)(i), (f)(1)(ii), (f)(1)(iii), (k)(3)(iii)
178.51(f)(1)(iii), (f)(2), (f)(3), (j)(3)(iii), (k), (l)(3)
178.53(j)(5)(iii)

[[Page 45387]]

178.55(f), (k)(3)(iii)
178.56(f)(1)(ii), (f)(2), (j)(3)(iii), (k), (l)(3)
178.57(f)(1), (j)(3)(iii), (k), (l)(3)
178.58(m)(5)(iii)
178.59(j)(3)(iii)
178.60(g)(1) introductory text, (l)(3)(iii), (m), (n)(3)
178.61(f)(3), (j)(3)(iii), (k), (l)(3)
178.68(f)(1)(i), (f)(2), (h)(4) introductory text, (l)(1)
178.705(c)(1)(iii)(A), (c)(1)(iii)(B), (c)(1)(iv)(A), (c)(1)(iv)(B)


    155. Amend 49 CFR part 178 by removing the acronym ``psi'' or 
``p.s.i.'', as appropriate, and adding the acronym ``psig'' each place 
it appears in the following sections:

178.38(o) introductory text
178.45(a), (g)(4)
178.46(c)(5)(ii), (g)(2), (g)(3)(i), (g)(3)(ii), (g)(3)(iii)
178.47(f) introductory text
178.57(d)(3)
178.270-10(a), (b)
178.270-11(c)(1)(i), (c)(1)(ii)
178.338-1(f)(1)
178.347-1(c)
178.702(a)(1) Table


    156. Amend 49 CFR part 178 by removing the wording ``pounds per 
square inch gauge'' and adding the acronym ``psig'' each place it 
appears in the following sections:

178.33-8(a)
178.33a-8(a)
178.61(a)


    157. Amend 49 CFR part 178 by removing the wording ``maximum 
allowable working pressure'' or ``Maximum allowable working pressure'' 
or ``Maximum Allowable Working Pressure'', as appropriate, and adding 
the acronym ``MAWP'' each place it appears in the following sections:

178.245-3 Note 1
178.270-4(b)(1), (b)(2), (b)(3)
178.270-12(b), (e)
178.270-13(a)
178.270-14(b)(7), (c)(2)
178.271-1(b)
178.272-1(b)
178.337-1(b) Note 1
178.338-1(a)(1)
178.345-1(f)
178.346-1(b)


    158. Amend 49 CFR part 178 by removing the word ``centimeters'' and 
adding the acronym ``cm'' each place it appears in the following 
sections:

178.337-8(a)(3), (a)(4)(v), (a)(4)(vi)
178.352-3(a), (b), (c)(1), (c)(2)(i), (c)(2)(ii), (c)(2)(iii), (c)(3)
178.354-3(b), (c) introductory text, (e)
178.356-2(a)(2), (c)
178.356-3(a)
178.358-2(a)(2), (a)(3)
178.360-1(b)
178.360-3(a)
178.362-2(a)(2), (b), (d)(2), (d)(3), (e)(1), (e)(2), (e)(3), (e)(4), 
(e)(5)
178.362-3(b)
178.364-2(a), (b), (d), (e), (f)
178.364-3


    159. Amend 49 CFR part 178 by removing the word ``centimeter'' and 
adding the acronym ``cm'' each place it appears in the following 
sections:

178.352-3(a), (c)(1), (c)(3)
178.354-3(a) introductory text
178.358-2(a) introductory text
178.364-2(a)
178.364-3


    160. Amend 49 CFR part 178 by removing the word ``millimeter'' and 
adding the acronym ``mm'' each place it appears in the following 
sections:

178.352-3(c)(1)
178.362-2(a)(1)


    161. Amend 49 CFR part 178 by removing the word ``millimeters'' and 
adding the acronym ``mm'' each place it appears in the following 
sections:

178.270-9
178.352-3(b), (c)(1), (c)(2)(i), (c)(2)(ii), (c)(3)
178.354-3(e)
178.358-1(c)
178.360-1(b)


    162. Amend 49 CFR part 178 by removing the word ``kilograms'' and 
adding the acronym ``kg'' each place it appears in the following 
sections:

178.356-1(b)(1), (b)(2), (b)(3)
178.358-1(b)
178.362-1(b)(1), (b)(2), (b)(3), (b)(4), (b)(5), (b)(6)
178.364-1(b)
178.700(c)(1)


    163. Amend 49 CFR part 178 by removing the word ``liters'' and 
adding the acronym ``L'' each place it appears in the following 
sections:

178.270-9
178.270-11(a)(2)
178.337-8(a)(4)(i), (a)(4)(ii)
178.352-2(a)
178.352-3(c)(1), (c)(3)
178.354-2(a)
178.354-3(a) introductory text
178.700(c)(1)
178.703(b) introductory text, (b)(1)(i), (b)(2)(i)
178.707(c)(6)


    164. Amend 49 CFR part 178 by removing the word ``meters'' and 
adding the acronym ``m'' each place it appears in the following 
sections:

178.270-5(d)
178.272-2(b)(1), (b)(2)


    165. Amend 49 CFR part 178 by removing the wording ``frangible 
pressure relief devices'' and adding the wording ``non-reclosing 
pressure relief devices'' each place it appears in the following 
sections:

178.705(c)(2)(i)
178.706(c)(4)
178.707(c)(3)(iv)

Sec. 178.33a-2  [Amended]

    166. Amend Sec. 178.33a-2, paragraph (b), by removing the wording 
``one liter'' and adding the wording ``1 L'' in its place.


Sec. 178.36  [Amended]

    167. In Sec. 178.36:
    a. Amend paragraph (a)(2)(iii), in the definitions following the 
formula, by removing the wording ``P=hydrostatic test pressure-p.s.i.'' 
and adding the wording ``P=hydrostatic test pressure-psig'' in its 
place.
    b. Amend paragraph (f), in the definitions following the formula, 
by removing the wording ``S = wall stress in pounds per square inch'' 
and adding the wording ``S = wall stress in psi'' in its place, and by 
removing the wording ``P = minimum test pressure prescribed for water 
jacket test or 450 pounds per square inch'' and adding the wording ``P 
= minimum test pressure prescribed for water jacket test or 450 psig'' 
in its place.


Sec. 178.37  [Amended]

    168. Amend Sec. 178.37:
    a. In paragraph (a)(2)(iii), in the definitions following the 
formula, by removing the wording ``P=hydrostatic test pressure-p.s.i.'' 
and adding the wording ``P=hydrostatic test pressure-psig'' in its 
place.
    b. By revising paragraphs (f)(2) and (f)(3) and the first sentence 
in paragraph (f)(1) to read as follows:


Sec. 178.37  Specification 3AA and 3AAX seamless steel cylinders.

* * * * *
    (f) * * *
    (1) For cylinders with a service pressure of less than 900 psig, 
the wall stress may not exceed 24,000 psi. * * *
    (2) For cylinders with service pressure of 900 psig 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 psi.
    (3) Calculation must be made by the formula:

    S=[P(1.3D2+0.4d2)]/
(D2-d2)

Where:
S=wall stress in psi;

[[Page 45388]]

P=minimum test pressure prescribed for water jacket test or 450 psig 
whichever is the greater;
D=outside diameter in inches;
d=inside diameter in inches.
* * * * *


Sec. 178.38  [Amended]

    169. Amend Sec. 178.38, paragraph (f), in the definitions following 
the formula, by removing the wording ``S = wall stress in pounds per 
square inch'' and adding the wording ``S = wall stress in psi'' in its 
place and by removing the wording ``P = at least two times service 
pressure or 450 pounds per square inch,'' and adding the wording ``P = 
at least two times service pressure or 450 psig,'' in its place.


Sec. 178.39  [Amended]

    170. In Sec. 178.39, amend paragraph (f) by removing the wording 
``15,000 pounds per square inch'' and adding the wording ``15,000 psi'' 
in its place; and, in the definitions following the formula, by 
removing the wording ``S =wall stress in pounds per square inch'' and 
adding the wording ``S=wall stress in psi'' and by removing the wording 
``P = minimum test pressure prescribed for water jacket test or 450 
pounds per square inch'' and adding the wording ``P=minimum test 
pressure prescribed for water jacket test or 450 psig'' in its place.


Sec. 178.45  [Amended]

    171. Amend Sec. 178.45, paragraph (d)(2)(iii), in the definitions 
following the formula, by removing the wording ``S=Tensile stress in 
pounds per square inch'' and adding the wording ``S=Tensile stress in 
psi'' in its place, and by removing the wording ``P=Hydrostatic test 
pressure in pounds per square, inch'' and adding the wording 
``P=Hydrostatic test pressure-psig'' in its place.


Sec. 178.46  [Amended]

    172. Amend Sec. 178.46, paragraph (d), in the definitions following 
the formula, by removing the wording ``S=Wall stress in pounds per 
square inch'' and adding the wording ``S=Wall stress in psi'' in its 
place, and by removing the wording ``P=Prescribed minimum test pressure 
in pounds per square inch (see paragraph (g) of this section)'' and 
adding the wording ``P=Prescribed minimum test pressure in psig (see 
paragraph (g) of this section)'' in its place.


Sec. 178.47  [Amended]

    173. In Sec. 178.47:
    a. Amend paragraph (f)(1), in the definitions following the 
formula, by removing the wording ``S=Wall stress in pounds per square 
inch'' and adding the wording ``S=Wall stress in psi'' in its place, 
and by removing the wording ``P=Test pressure prescribed for water 
jacket test, i.e., at least two times service pressure, in pounds per 
square inch'' and adding the wording ``P=Test pressure prescribed for 
water jacket test, i.e., at least two times service pressure, in psig'' 
in its place.
    b. Amend paragraph (f)(2), in the definitions following the 
formula, by removing the wording ``S=Wall stress in pounds per square 
inch'' and adding the wording ``S=Wall stress in psi'' in its place, 
and by removing the wording ``P=Test pressure prescribed for water 
jacket test, i.e., at least two times service pressure, in pounds per 
square inch'' and add the wording ``P=Test pressure prescribed for 
water jacket test, i.e., at least two times service pressure, in psig'' 
in its place.


Sec. 178.50  [Amended]

    174. Amend Sec. 178.50, paragraph (f)(2), in the definitions 
following the formula, by removing the wording ``S=wall stress in 
pounds per square inch'' and adding the wording ``S=wall stress in 
psi'' in its place, and by removing the wording ``P=minimum test 
pressure prescribed for water jacket test or 450 pounds per square 
inch'' and adding the wording ``P=minimum test pressure prescribed for 
water jacket test or 450 psig'' in its place.


Sec. 178.53  [Amended]

    175. In Sec. 178.53:
    a. Amend paragraph (e), introductory text, by removing the wording 
``24,000 pounds per square inch'' in the first sentence and adding the 
wording ``24,000 psi'' in its place, and by removing the wording 
``37,000 pounds per square inch'' and adding the wording ``37,000 
psig'' in its place.
    b. Amend paragraph (e)(1), in the definitions following the 
formula, by removing the wording ``S=wall stress in pounds per square 
inch'' and add the wording ``S=wall stress in psi'' in its place, and 
by removing the wording ``P=test pressure prescribed for water jacket 
test, i.e., at least two times service pressure, in pounds per square 
inch'' and add the wording ``P=test pressure prescribed for water 
jacket test, i.e., at least two times service pressure, in psig'' in 
its place.
    c. Amend paragraph (e)(2), in the definitions following the 
formula, by removing the wording ``S=wall stress in pounds per square 
inch'' and adding the wording ``S=wall stress in psi'' in its place, 
and by removing the wording ``P=test pressure prescribed for water 
jacket test, i.e., at least two times service pressure, in pounds per 
square inch'' and adding the wording ``P=test pressure prescribed for 
water jacket test, i.e., at least two times service pressure, in psig'' 
in its place.


Sec. 178.57  [Amended]

    176. Amend Sec. 178.57, paragraph (f)(6), in the definitions 
following the formula, by removing the wording ``S=wall stress in 
pounds per square inch'' and adding the wording ``S=wall stress in 
psi'' in its place, and by removing the wording ``P=minimum test 
pressure prescribed for pressure test in pounds per square inch'' and 
adding the wording ``P=minimum test pressure prescribed for pressure 
test in psig'' in its place.


Sec. 178.58  [Amended]

    177. In Sec. 178.58:
    a. Amend paragraph (f)(1), in the definitions following the 
formula, by removing the wording ``S=wall stress in pounds per square 
inch'' and adding the wording ``S=wall stress in psi'' in its place, 
and by removing the wording ``P=test pressure prescribed for water 
jacket test, i.e., at least two times service pressure, in pounds per 
square inch'' and adding the wording ``P=test pressure prescribed for 
water jacket test, i.e., at least two times service pressure, in psig'' 
in its place.
    b. Amend paragraph (f)(2), in the definitions following the 
formula, by removing the wording ``S=wall stress in pounds per square 
inch'' and adding the wording ``S=wall stress in psi'' in its place, 
and by removing the wording ``P=test pressure prescribed for water 
jacket test, i.e., at least two times service pressure, in pounds per 
square inch'' and adding the wording ``P=test pressure prescribed for 
water jacket test, i.e., at least two times service pressure, in psig'' 
in its place.


Sec. 178.60  [Amended]

    178. Amend Sec. 178.60, paragraph (g)(1)(i), in the definitions 
following the formula, by removing the wording ``S=wall stress in 
pounds per square inch'' and adding the wording ``S=wall stress in 
psi'' in its place, and by removing the wording ``P=750 pounds per 
square inch (minimum test pressure)'' and adding the wording ``P=750 
psig (minimum test pressure)'' in its place.


Sec. 178.61  [Amended]

    179. Amend Sec. 178.61, paragraph (f)(4), in the definitions 
following the formula, by removing the wording ``S=wall stress, 
p.s.i.'' and adding the wording ``S=wall stress, psi'' in its place, 
and by removing the wording ``P=service

[[Page 45389]]

pressure, p.s.i.'' and adding the wording ``P=service pressure, psig'' 
in its place.


Sec. 178.65  [Amended]

    180. Amend Sec. 178.65, paragraphs (d)(1) and (d)(2), in the 
definitions following the formula, by removing the wording ``S=Wall 
stress, in p.s.i.'' and adding the wording ``S=Wall stress, in psi'' in 
its place, and by removing the wording ``P=Test pressure'' and adding 
the wording ``P=Test pressure in psig'' in its place.


Sec. 178.270-2  [Amended]

    181. Amend Sec. 178.270-2, paragraph (b), by removing the wording 
``maximum allowable working pressure or''.

    182. Amend Sec. 178.270-5, by revising paragraphs (b)(1) and (b)(2) 
to read as follows:


Sec. 178.270-5  Minimum thickness of shells and heads.

* * * * *
    (b) * * *
    (1) With a maximum cross-sectional dimension of 1.8 m (5.9 feet) or 
less, shall be at least 5 mm (0.197 inches) thick; or
    (2) With a maximum cross-sectional dimension exceeding 1.8 m (5.9 
feet), shall be at least 6.35 mm (0.250 inches) thick.
* * * * *


Sec. 178.270-11  [Amended]

    183. In Sec. 178.270-11:
    a. Amend paragraph (a)(2) by removing the wording ``frangible 
disc'' and adding the wording ``non-reclosing device'' in its place.
    b. Amend paragraph (b)(1), introductory text, by removing the 
wording ``frangible discs'' in the first sentence and adding the 
wording ``rupture discs'' in its place.
    c. Amend paragraph (c)(2) by removing the wording ``frangible 
disc'' in the first sentence and adding the wording ``rupture disc'' in 
its place, and by removing the wording ``pressure relief valve used as 
an emergency'' in the last sentence.
    d. Amend paragraph (d)(4) by removing the abbreviation ``sq.'' and 
adding the word ``square'' each place it appears.
    e. Amend paragraph (e)(2)(i) by removing the wording ``frangible 
discs'' and adding the wording ``rupture discs'' in its place, and 
paragraph (e)(2)(ii) by removing the wording ``start to discharge'' and 
adding the wording ``start-to-discharge'' in its place.
    f. Amend paragraph (e)(4) by removing the wording ``start to 
discharge'' and adding the wording ``start-to-discharge'' in its place.
    g. By revising paragraph (a)(1) and the first sentence in paragraph 
(a)(3) to read as follows:
    (a) * * *
    (1) Each portable tank, or each independent compartment of a 
portable tank, with a capacity of more than 1893 L (500 gallons), must 
be provided with a primary spring-loaded pressure relief device and, in 
addition, may have one or more emergency pressure relief devices that 
may be a spring-loaded pressure relief valve, a rupture disc or fusible 
element in parallel with the primary pressure relief device.
* * * * *
    (3) If a non-reclosing device is inserted in series with a required 
pressure relief valve, the space between them must have 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. * * *
* * * * *


Sec. 178.345-1  [Amended]

    184. Amend Sec. 178.345-1, in paragraph (c), in the definition for 
``Maximum Allowable Working Pressure or MAWP'' by removing the wording 
``Maximum Allowable Working Pressure or'', and paragraph (k) 
introductory text, by removing the wording ``Maximum Allowable Working 
Pressure (MAWP)'' and adding the acronym ``MAWP'' in its place.


Sec. 178.345-10  [Amended]

    185. Amend Sec. 178.345-10, paragraph (b)(3)(ii), by removing the 
wording ``one liter'' in the first sentence and adding the wording ``1 
L'' in its place.


Sec. 178.345-14  [Amended]

    186. Amend Sec. 178.345-14, paragraph (b)(3), by removing the 
wording ``maximum allowable working pressure (MAWP)'' and adding the 
acronym ``MAWP'' in its place.


Sec. 178.346-3  [Amended]

    187. Amend Sec. 178.346-3, paragraph (b)(3), by removing the 
wording ``one liter'' in the first sentence and adding the wording ``1 
L'' in its place.

    188. Amend Sec. 178.352-2 by revising paragraph (b) to read as 
follows:


Sec. 178.352-2  Rated capacity.

* * * * *
    (b) The authorized maximum gross weight of the package is 160 kg 
(350 pounds) for sizes not over 210 L (55 gallons) or 220 kg (480 
pounds) for sizes over 210 L (55 gallons) but not over 420 L (110 
gallons).


Sec. 178.352-3  [Amended]

    189. Amend Sec. 178.352-3, in the second sentence in paragraph (a) 
and the last sentence in paragraph (c)(3), by removing the wording 
``210L'' and adding the wording ``210 L'' in its place.

    190. Amend Sec. 178.356-1, paragraph (c), by revising the fourth 
and fifth sentence to read as follows:


Sec. 178.356-1  General requirements.

* * * * *
    (c) * * * Each joint between sections must be stepped a minimum of 
5 cm (2 inches) and gaps between mating surfaces must not exceed 5 mm 
(0.2 inch). Gaps between foam surface of top section and liner lid must 
not exceed 1 cm (0.4 inch) or 5 cm (2 inches) where taper is required 
for mold stripping. * * *
* * * * *

    191. Amend Sec. 178.358-3, by revising paragraph (b)(2), the first 
sentence in paragraph (b)(3) and paragraph (b)(4) to read as follows:


Sec. 178.358-3  Modification of Specification 21PF-1 overpacks.

* * * * *
    (b) * * *
    (2) Weigh each packaging element (top and bottom halves) separately 
to an accuracy of 2.3 kg (5 pounds) and record 
the weights. If this measured weight exceeds the initially measured 
weight at the time of fabrication by 11.3 kg (25 pounds) (indicating a 
significant retained water content), the packaging element must be 
dried.
    (3) Place overpack element in drying oven; maintain temperature 
between 87.8-98.9  deg.C (190-210  deg.F) for a minimum of 72 hours. * 
* *
    (4) Drying may be discontinued after 72 hours if the weight of the 
packaging element does not exceed the initially measured tare weight of 
that element at the time of fabrication by more than 11.3 kg (25 
pounds). If the weight of the packaging element exceeds the initial 
fabricated weight (indicating a significant remaining water content) by 
more than 11.3 kg (25 pounds), drying must be continued until the 
weight differential is not higher than 11.3 kg (25 pounds), or until 
the rate of weight loss is less than 1.1 kg (2.5 pounds) per day.
* * * * *

    192. Revise Sec. 178.364-3 to read as follows:


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 cm (1 inch) x 5 mm (\3/16\ 
inch) bar stock. Hinge pins must be minimum 6 mm (\1/4\ inch)

[[Page 45390]]

diameter by 13.3 cm (5\1/4\ inches) long mild steel rod drilled at both 
ends for cotter pins.

    193. Amend Sec. 178.605, by revising paragraphs (d)(2), (d)(3) and 
(d) concluding text to read as follows:


Sec. 178.605  Hydrostatic pressure test.

* * * * *
    (d) * * *
    (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 psig); or
    (3) Not less than 1.5 times the vapor pressure at 55  deg.C (131 
deg.F) of the material to be transported minus 100 kPa (15 psi), but 
with a minimum test pressure of 100 kPa (15 psig).

Packagings intended to contain hazardous materials of Packing Group I 
must be tested to a minimum test pressure of 250 kPa (36 psig).
* * * * *


Sec. 178.803  [Amended]

    194. Amend Sec. 178.803, the table heading, by removing the wording 
``Intermediate Bulk Container (IBC)'' and adding the acronym ``IBC'' in 
its place.

PART 179--SPECIFICATIONS FOR TANK CARS

    195. The authority citation for part 179 continues to read as 
follows:

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

PART 179--[AMENDED]

    196. Amend 49 CFR part 179, by removing the acronym ``psi'' or 
``p.s.i.'', as appropriate, and adding the acronym ``psig'' each place 
it appears in the following sections:

179.12(b)
179.16(a)(3)
179.201-1 Table
179.221-1 Table
179.300-16(b)
179.301(a) Table
179.401-1 Table
App. A, paragraph 2.b.


    197. Amend 49 CFR part 179 by removing the word ``nonreclosing'' 
and adding the word ``non-reclosing'' each place it appears in the 
following sections:

179.15(e) introductory text, (f)(1), (f)(3), (f)(4)


    198. Amend 49 CFR part 179 remove the wording ``safety relief'' and 
add the wording ``pressure relief'' each place it appears in the 
following sections:

179.102-17(l)
179.200-13 heading
179.220-24 heading
179.300-17(c)
179.500-10(a)
179.500-12(a)


Sec. 179.2  [Amended]

    199. Amend Sec. 179.2, by removing and reserving paragraphs (a)(4) 
and (a)(9).


Sec. 179.15  [Amended]

    200. Amend Sec. 179.15, paragraph (e)(2), by removing the wording 
``start-to-discharge'' in the first sentence each place it appears.


Sec. 179.18  [Amended]

    201. Amend Sec. 179.18, paragraph (c), by removing the wording 
``Dockets Unit'' and adding the wording ``RSPA Records Center'' in its 
place.


Sec. 179.101-1  [Amended]

    202. Amend Sec. 179.101-1, the column headings of the table, by 
removing the acronym ``psi'' and adding the acronym ``psig'' each place 
it appears.


Sec. 179.102-4  [Amended]

    203. Amend Sec. 179.102-4, paragraph (i), by removing the wording 
``safety relief valve'' and adding the wording ``reclosing pressure 
relief valve'' in its place.

    204. Amend Sec. 179.102-17 by revising paragraph (d) to read as 
follows:


Sec. 179.102-17  Hydrogen chloride, refrigerated liquid.

* * * * *
    (d) Pressure relief valves must be trimmed with monel or other 
approved material and equipped with a rupture disc of silver, 
polytetrafluoroethylene coated monel, or tantalum. Each pressure relief 
device shall have the space between the rupture disc and the valve 
vented with a suitable auxiliary valve. The discharge from each 
pressure relief valve must be directed outside the protective housing.
* * * * *


Sec. 179.200-6  [Amended]

    205. Amend Sec. 179.200-6, paragraphs (a), (b) and (c), in the 
definitions following the formula, by removing the wording ``P=Minimum 
required bursting pressure in p.s.i.'' and adding the wording 
``P=Minimum required bursting pressure in psig'' each place it appears.

    206. Amend Sec. 179.200-14, paragraph (b), by revising the last 
sentence to read as follows:


Sec. 179.200-14  Expansion capacity.

* * * * *
    (b) * * * 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 a pressure relief 
device is applied to side of dome, the effective capacity of the dome 
shall be measured from top of the pressure relief device opening inside 
of dome to inside top of shell of tank.
* * * * *


Sec. 179.201-8  [Amended]

    207. Amend Sec. 179.201-8, paragraph (a), by removing the wording 
``pounds per square inch'' in the second sentence and adding the 
acronym ``psig'' in its place.


Sec. 179.220-6  [Amended]

    208. Amend Sec. 179.220-6, paragraphs (a) and (b), in the 
definitions following the formula, by removing the wording ``P=Minimum 
required bursting pressure in p.s.i.'' and adding the wording 
``P=Minimum required bursting pressure in psig'' each place it appears.


Sec. 179.300-6  [Amended]

    209. In Sec. 179.300-6:
    a. In paragraph (a), in the definitions following the formula, 
remove the wording ``P=minimum required bursting pressure in p.s.i.'' 
and add the wording ``P=minimum required bursting pressure in psig'' in 
its place;
    b. In paragraph (b), in the definitions following the formula, 
remove the wording ``p=tank test pressure in p.s.i.'' and add the 
wording ``p=tank test pressure in psig'' in its place.

    210. Amend Sec. 179.300-15 by revising the section heading and 
paragraph (c) to read as follows:


Sec. 179.300-15  Pressure relief devices.

* * * * *
    (c) Pressure relief devices shall be set for start-to-discharge and 
rupture discs shall burst at a pressure not exceeding that specified in 
Sec. 179.301.
* * * * *

    211. Amend Sec. 179.300-17 by revising the section heading and 
paragraph (b) to read as follows:


Sec. 179.300-17  Tests of pressure relief devices.

* * * * *
    (b) Rupture discs of non-reclosing pressure relief devices must be 
tested as prescribed in Appendix A, A5.03 of the AAR Manual of 
Standards and Recommended Practices, Section C--Part III, 
Specifications for Tank Cars, Specification M-1002, January 1996 (see 
Sec. 171.7 of this subchapter).
* * * * *


Sec. 179.400-8  [Amended]

    212. In Sec. 179.400-8:

[[Page 45391]]

    a. Amend paragraphs (a), (b) and(c), in the definitions following 
the formula, by removing the wording ``P=minimum required bursting 
pressure, in psi'' and adding the wording ``P=minimum required bursting 
pressure in psig'' each place it appears;
    b. Amend paragraph (d) by removing the acronym ``psi'' in the last 
sentence of the text preceding the formula and adding the acronym 
``psig'' in its place; and by removing in the definitions following the 
formula the wording ``Pc = Critical collapsing pressure 
(37.5 psi minimum), in psi'' and adding the wording ``Pc = 
Critical collapsing pressure (37.5 psig minimum) in psig'' in its 
place.


Sec. 179.400-9  [Amended]

    213. Amend Sec. 179.400-9, paragraph (d), in the definitions 
following the formula, by removing the wording ``Pc = 
critical collapsing pressure (37.5 psi minimum), in psi'' and adding 
the wording ``Pc = critical collapsing pressure (37.5 psig 
minimum) in psig'' in its place.


Sec. 179.400-20  [Amended]

    214. Amend Sec. 179.400-20, paragraph (d), by removing the wording 
``frangible disc'' in the last sentence and adding the wording 
``rupture disc'' in its place.


Sec. 179.400-25  [Amended]

    215. Amend Sec. 179.400-25, paragraph (a), by removing the wording 
``frangible disc'' and adding the wording ``rupture disc'' in its 
place.


Sec. 179.500-3  [Amended]

    216. Amend Sec. 179.500-3, paragraph (c)(2), by removing the 
wording ``pounds per square inch'' and adding the acronym ``psig'' in 
its place.


Sec. 179.500-4  [Amended]

    217. Amend Sec. 179.500-4, paragraph (a), by removing the wording 
``pounds per square inch'' in the first sentence and adding the acronym 
``psi'' in its place.


Sec. 179.500-7  [Amended]

    218. Amend Sec. 179.500-7, paragraph (b), by removing the wording 
``pounds per square inch'' and adding the acronym ``psi'' each place it 
appears.


Sec. 179.500-12  [Amended]

    219. Amend Sec. 179.500-12, the section heading, by removing the 
wording ``Safety relief'' and adding the wording ``Pressure relief'' in 
its place.

    220. Amend Sec. 179.500-16 by revising the section heading, the 
first sentence in paragraph (a) and paragraph (b) to read as follows:


Sec. 179.500-16  Tests of pressure relief devices.

    (a) Pressure relief valves shall be tested by air or gas before 
being put into service. * * *
    (b) For pressure relief devices that incorporate a rupture disc, 
samples of the 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.

    221. Amend Sec. 179.500-17 by revising paragraphs (a)(5) and (a)(6) 
to read as follows:


Sec. 179.500-17  Marking.

    (a) * * *
    (5) Date (such as 1-01, for January 2001) of tank test, so placed 
that dates of subsequent tests may easily be added.
    (6) Date (such as 1-01, for January 2001) of latest test of the 
pressure relief device or of the rupture disc, required only when tank 
is used for transportation of flammable gases.
* * * * *


Sec. 179.500-18  [Amended]

    222. In Sec. 179.500-18, paragraph (c):
    a. Amend the table titled ``RECORD OF CHEMICAL ANALYSIS OF STEEL IN 
TANKS'', in the column headings, by removing the wording ``pounds per 
square inch'' and adding the acronym ``psi'' each place it appears.
    b. Amend the table titled ``RECORD OF HYDROSTATIC TESTS ON TANKS'' 
by removing the wording ``pounds per square inch'' and adding the 
acronym ``psig'' in its place.
    c. Amend the table titled ``RECORD OF GENERAL DATA ON TANKS'':
    i. In column 10, by removing the wording ``pounds per square 
inch'', and adding the acronym ``psig'' in its place.
    ii. In column 11, by removing the wording ``pounds per square 
inch'' and adding the acronym ``psi'' in its place.
    iii. By revising the heading of column 9 to read ``(S) Calculated 
fiber stress in psi at \7/10\ marked test pressure''.

PART 180--CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS

    223. The authority citation for part 180 continues to read as 
follows:

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

PART 180--[AMENDED]

    224. Amend CFR part 180 by removing the wording ``intermediate bulk 
container'' or ``Intermediate bulk container'', as appropriate, and 
adding the acronym ``IBC'' each place it appears in the following 
sections:

180.350
180.351(a), (b)
180.352(a), (b) introductory text, (b)(3)(i), (c)(1), (c)(2)(i) 
introductory text, (c)(2)(i)(A), (c)(2)(i)(B), (c)(2)(i)(C), (c)(2)(ii) 
introductory text, (c)(2)(ii)(C), (c)(2)(iii) introductory text, 
(c)(2)(iii)(B), (f)


    225. Amend 49 CFR part 180 by removing the wording ``intermediate 
bulk containers'' and adding the acronym ``IBCs'' each place it appears 
in the following sections:

180.351 heading
180.352(b) heading, (b)(3)(ii)


    226. Amend 49 CFR part 180 by removing the acronym ``psi'' or 
``p.s.i.'', as appropriate, and adding the acronym ``psig'' each place 
it appears in the following sections:

180.509(j)(2)
180.519(b)(2), (b)(5) Table


    227. Amend 49 CFR part 180 by removing the word ``liters'' and 
adding the acronym ``L'' each please it appears in the following 
sections:

180.405(m)(2), (m)(3), (n)
180.409(b)

Sec. 180.352  [Amended]

    228. Amend Sec. 180.352, the section heading, by removing the 
wording ``intermediate bulk containers (IBCs)'' and adding the acronym 
``IBCs'' in its place.


Sec. 180.405  [Amended]

    229. Amend Sec. 180.405, paragraph (h)(2), by removing the wording 
``one liter'' in the first sentence and adding the wording ``1 L'' in 
its place.

    230. Amend Sec. 180.509 by revising paragraphs (h)(2)(i) and 
(h)(2)(ii) to read as follows:


Sec. 180.509  Requirements for inspection and test of specification 
tank cars.

* * * * *
    (h) * * *
    (2) * * *
    (i) Removing the reclosing pressure relief device from the tank car 
for inspection; and
    (ii) Testing the reclosing pressure 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.
* * * * *


Sec. 180.515  [Amended]

    231. Amend Sec. 180.515, paragraph (c), by removing the wording 
``safety relief device'' and adding the wording ``reclosing pressure 
relief device'' in its place.

[[Page 45392]]

Sec. 180.519  [Amended]

    232. In Sec. 180.519:
    a. Amend paragraph (b)(3), by removing the wording ``start to 
discharge'' and adding the wording ``start-to-discharge'' in its place.
    b. Amend paragraph (b)(4), by removing the wording ``Frangible 
discs'' and adding the wording ``Rupture discs'' in its place.
    c. Amend paragraph (b)(5), column headings for RETEST TABLE 1 by 
removing the wording ``Safety relief'' and adding the wording 
``Pressure relief'' each place it appears, and in Note (a) of the table 
by removing the wording ``frangible disc'' and adding the wording 
``rupture disc'' in its place.

    Issued in Washington, DC, on June 27, 2001, under authority 
delegated in 49 CFR part 1.
Edward A. Brigham,
Acting Deputy Administrator.
[FR Doc. 01-16660 Filed 8-27-01; 8:45 am]
BILLING CODE 4910-60-P