[Federal Register Volume 81, Number 173 (Wednesday, September 7, 2016)]
[Proposed Rules]
[Pages 61742-61831]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-20580]



[[Page 61741]]

Vol. 81

Wednesday,

No. 173

September 7, 2016

Part II





Department of Transportation





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Pipeline and Hazardous Materials Safety Administration





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49 CFR Parts 107, 171, 172, et al.





Hazardous Materials: Harmonization With International Standards (RRR); 
Proposed Rule

  Federal Register / Vol. 81 , No. 173 / Wednesday, September 7, 2016 / 
Proposed Rules  

[[Page 61742]]


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DEPARTMENT OF TRANSPORTATION

Pipeline and Hazardous Materials Safety Administration

49 CFR Parts 107, 171, 172, 173, 175, 176, 178, and 180

[Docket No. PHMSA-2015-0273 (HM-215N)]
RIN 2137-AF18


Hazardous Materials: Harmonization With International Standards 
(RRR)

AGENCY: Pipeline and Hazardous Materials Safety Administration (PHMSA), 
Department of Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The Pipeline and Hazardous Materials Safety Administration 
(PHMSA) proposes to amend the Hazardous Materials Regulations (HMR) to 
maintain consistency with international regulations and standards by 
incorporating various amendments, including changes to proper shipping 
names, hazard classes, packing groups, special provisions, packaging 
authorizations, air transport quantity limitations, and vessel stowage 
requirements. These revisions are necessary to harmonize the HMR with 
recent changes made to the International Maritime Dangerous Goods Code, 
the International Civil Aviation Organization's Technical Instructions 
for the Safe Transport of Dangerous Goods by Air, and the United 
Nations Recommendations on the Transport of Dangerous Goods--Model 
Regulations. Additionally, PHMSA proposes several amendments to the HMR 
that result from coordination with Canada under the U.S.-Canada 
Regulatory Cooperation Council.

DATES: Comments must be received by November 7, 2016.

ADDRESSES: You may submit comments by any of the following methods:
    Federal Rulemaking Portal: http://www.regulations.gov. Follow the 
on-line instructions for submitting comments.
    Fax: 1-202-493-2251.
    Mail: Docket Management System; U.S. Department of Transportation, 
Docket Operations, M-30, Ground Floor, Room W12-140, 1200 New Jersey 
Avenue SE., Washington, DC 20590-0001.
    Hand Delivery: To U.S. Department of Transportation, Docket 
Operations, M-30, Ground Floor, Room W12-140, 1200 New Jersey Avenue 
SE., Washington, DC 20590-0001 between 9 a.m. and 5 p.m. Monday through 
Friday, except Federal holidays.
    Instructions: Include the agency name and docket number PHMSA-2015-
0273 (HM-215N) or RIN 2137-AF18 for this rulemaking at the beginning of 
your comment. Note that all comments received will be posted without 
change to http://www.regulations.gov including any personal information 
provided. If sent by mail, comments must be submitted in duplicate. 
Persons wishing to receive confirmation of receipt of their comments 
must include a self-addressed stamped postcard.
    Privacy Act: Anyone is able to search the electronic form of any 
written communications and comments received into any of our dockets by 
the name of the individual submitting the document (or signing the 
document, if submitted on behalf of an association, business, labor 
union, etc.). You may review DOT's complete Privacy Act Statement in 
the Federal Register published on April 11, 2000 (65 FR 19477), or you 
may visit http://www.regulations.gov.
    Docket: You may view the public docket through the Internet at 
http://www.regulations.gov or in person at the Docket Operations office 
at the above address (See ADDRESSES).

FOR FURTHER INFORMATION CONTACT: Steven Webb, Office of Hazardous 
Materials Standards or Aaron Wiener, International Standards, telephone 
(202) 366-8553, Pipeline and Hazardous Materials Safety Administration, 
U.S. Department of Transportation, 1200 New Jersey Avenue SE., 2nd 
Floor, Washington, DC 20590-0001.

SUPPLEMENTARY INFORMATION: 

Table of Contents

I. Executive Summary
II. Background
III. Incorporation by Reference Discussion Under 1 CFR Part 51
IV. Harmonization Proposals in This NPRM
V. Amendments Not Being Considered for Adoption in This NPRM
VI. Section-by-Section Review
VII. Regulatory Analyses and Notices
    A. Statutory/Legal Authority for This Rulemaking
    B. Executive Order 12866, Executive Order 13563, and DOT 
Regulatory Policies and Procedures
    C. Executive Order 13132
    D. Executive Order 13175
    E. Regulatory Flexibility Act, Executive Order 13272, and DOT 
Policies and Procedures
    F. Paperwork Reduction Act
    G. Regulation Identifier Number (RIN)
    H. Unfunded Mandates Reform Act of 1995
    I. Environment Assessment
    J. Privacy Act
    K. Executive Order 13609 and International Trade Analysis
    L. National Technology Transfer and Advancement Act
    List of Subjects

I. Executive Summary

    The Pipeline and Hazardous Materials Safety Administration (PHMSA) 
proposes to amend the Hazardous Materials Regulations (HMR; 49 CFR 
parts 171 to 180) to maintain consistency with international 
regulations and standards by incorporating various amendments, 
including changes to proper shipping names, hazard classes, packing 
groups, special provisions, packaging authorizations, air transport 
quantity limitations, and vessel stowage requirements. This rulemaking 
project is part of our ongoing biennial process to harmonize the HMR 
with international regulations and standards.
    In this NPRM, PHMSA proposes to amend the HMR to maintain 
consistency with various international standards. The following are 
some of the more noteworthy proposals set forth in this NPRM:
     Incorporation by Reference: PHMSA proposes to incorporate 
by reference the newest versions of various international hazardous 
materials standards, including the 2017-2018 Edition of the 
International Civil Aviation Organization Technical Instructions for 
the Safe Transport of Dangerous Goods by Air (ICAO Technical 
Instructions); Amendment 38-16 to the International Maritime Dangerous 
Goods Code (IMDG Code); the 19th Revised Edition of the United Nations 
Recommendations on the Transport of Dangerous Goods (UN Model 
Regulations); the 6th Revised Edition of the United Nations Manual of 
Tests and Criteria; and the 6th Revised Edition of the Globally 
Harmonized System of Classification and Labelling of Chemicals. 
Additionally, we propose to update our incorporation by reference of 
the Canadian Transportation of Dangerous Goods (TDG) Regulations to 
include SOR/2014-152 and SOR/2014-159 published July 2, 2014; SOR/2014-
159 Erratum published July 16, 2014; SOR/2014-152 Erratum published 
August 27, 2014; SOR/2014-306 published December 31, 2014; SOR/2014-306 
Erratum published January 28, 2015; and SOR/2015-100 published May 20, 
2015. Finally, in this NPRM, PHMSA proposes the adoption of updated 
International Organization for Standardization (ISO) standards.
     Hazardous Materials Table (HMT): PHMSA proposes amendments 
to the Sec.  172.101 Hazardous Materials Table (HMT) consistent with 
recent changes in the Dangerous Goods List of the 19th Revised Edition 
of the UN Model Regulations, the IMDG Code, and the

[[Page 61743]]

ICAO Technical Instructions. Specifically, we propose amendments to the 
HMT to add, revise, or remove certain proper shipping names, hazard 
classes, packing groups, special provisions, packaging authorizations, 
bulk packaging requirements, and passenger and cargo aircraft maximum 
quantity limits.
     Provisions for Polymerizing Substances: PHMSA proposes to 
revise the HMT consistent with amendments adopted into the UN Model 
Regulations. Specifically, we propose to include into the HMT four new 
Division 4.1 entries for polymerizing substances and to add into the 
HMR defining criteria, authorized packagings, and safety requirements 
including, but not limited to, stabilization methods and operational 
controls.
     Modification of the Marine Pollutant List: PHMSA proposes 
to modify the list of marine pollutants in appendix B to Sec.  172.101. 
The HMR maintain this list as the basis for regulating substances toxic 
to the aquatic environment and allow use of the criteria in the IMDG 
Code if a listed material does not meet the criteria for a marine 
pollutant. PHMSA periodically updates this list based on changes to the 
IMDG Code and evaluation of listed materials.
     Packaging Requirements for Water-Reactive Materials 
Transported by Vessel: PHMSA proposes various amendments to packaging 
requirements for vessel transportation of water-reactive substances 
consistent with requirements in the IMDG Code. The amendments include 
changes to the packaging requirements to require certain commodities to 
have hermetically sealed packaging and to require other commodities--
when packed in flexible, fiberboard, or wooden packagings--to have 
sift-proof and water-resistant packaging or packaging fitted with a 
sift-proof and water-resistant liner.
     Hazard Communication Requirements for Lithium Batteries: 
PHMSA proposes to revise hazard communication requirements for 
shipments of lithium batteries consistent with changes adopted in the 
19th Revised Edition of the UN Model Regulations. Specifically, PHMSA 
proposes to adopt a new lithium battery label in place of the existing 
Class 9 label; to amend the existing marking requirements for small 
lithium battery shipments in Sec.  173.185(c) to incorporate a new 
standard lithium battery mark for use across all modes; \1\ to delete 
the documentation requirement in Sec.  173.185(c) for shipments of 
small lithium cells and batteries; and to require the lithium battery 
mark be applied to each package containing small lithium cells or 
batteries contained in equipment when there are more than four lithium 
cells or two lithium batteries installed in the equipment or where 
there are more than two packages in the consignment.
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    \1\ Small cells and batteries for the purposes of this 
rulemaking are a lithium metal cell containing not more than 1 gram 
of lithium metal, a lithium metal battery containing not more than 2 
grams of lithium metal, a lithium ion cell not more than 20 Watt-
hours (Wh), and a lithium ion battery not more than 100 Wh (49 CFR 
173.185(c) and Section II of Packing Instructions 965 and 968 in the 
ICAO Technical Instructions).
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     Engine, Internal Combustion/Machinery, Internal 
Combustion: PHMSA proposes to harmonize the HMT proper shipping names 
utilized for the transportation of engines and machinery containing 
engines with those in the UN Model Regulations. Additionally, PHMSA 
proposes harmonization with the IMDG Code for domestic vessel shipments 
of engines, internal combustion, and machinery containing combustion 
engines. Under the proposals in this NPRM, the existing ``Engine, 
internal combustion'' entries would be assigned their own UN numbers 
and hazard class based on the type of fuel (e.g. a flammable liquid 
powered engine is assigned a proper shipping name with a Class 3 
designation). Existing requirements and exceptions for the 
transportation of engines and machinery containing engines transported 
by road, rail, and aircraft would remain unchanged. PHMSA is, however, 
proposing to harmonize the transportation requirements for 
transportation by vessel, which includes varying degrees of hazard 
communication based on the type of fuel, amount of fuel, and capacity 
of the fuel tank.
     U.S.-Canada Regulatory Cooperation Council (RCC) 
Proposals: PHMSA proposes several amendments to the HMR resulting from 
coordination with Canada under the U.S.-Canada RCC. Specifically, we 
propose provisions for recognition of Transport Canada (TC) cylinders, 
equivalency certificates (permit for equivalent level of safety), and 
inspection and repair of cargo tanks. These changes would be made in 
conjunction with Transport Canada proposing similar regulatory changes 
that will provide reciprocal recognition of DOT cylinders and DOT 
special permits.
    If adopted in a final rule, the amendments proposed in this NPRM 
will result in minimal burdens on the regulated community. The benefits 
achieved from their adoption include enhanced transportation safety 
resulting from the consistency of domestic and international hazard 
communication and continued access to foreign markets by U.S. 
manufacturers of hazardous materials. PHMSA anticipates that most of 
the amendments in this NPRM will result in cost savings and will ease 
the regulatory compliance burden for shippers engaged in domestic and 
international commerce, including trans-border shipments within North 
America.
    PHMSA solicits comment from the regulated community on these 
amendments and others proposed in this NPRM pertaining to need, 
benefits and costs of international harmonization, impact on safety, 
and any other relevant concerns. In addition, PHMSA solicits comment 
regarding approaches to reducing the costs of this rule while 
maintaining or increasing the benefits. In its preliminary analysis, 
PHMSA concluded that the aggregate benefits of the amendments proposed 
in this NPRM justify their aggregate costs. Nonetheless, PHMSA solicits 
comment on specific changes (i.e., greater flexibility with regard to a 
particular amendment) that might improve the rule.

II. Background

    Federal law and policy strongly favor the harmonization of domestic 
and international standards for hazardous materials transportation. The 
Federal hazardous materials transportation law (49 U.S.C. 5101 et seq., 
``Federal hazmat law'') directs PHMSA to participate in relevant 
international standard-setting bodies and promotes consistency of the 
HMR with international transport standards to the extent practicable. 
Although Federal hazmat law permits PHMSA to depart from international 
standards to promote safety or other overriding public interest, it 
otherwise encourages domestic and international harmonization (see 49 
U.S.C. 5120).
    In a final rule published December 21, 1990 (Docket HM-181; 55 FR 
52402), PHMSA's predecessor--the Research and Special Programs 
Administration (RSPA)--comprehensively revised the HMR for 
international harmonization with the UN Model Regulations. The UN Model 
Regulations constitute a set of recommendations issued by the United 
Nations Sub-Committee of Experts (UNSCOE) on the Transport of Dangerous 
Goods (TDG) and the Globally Harmonized System of Classification and 
Labelling of Chemicals (GHS). The UN Model Regulations are amended and 
updated biennially by the UNSCOE and serve as

[[Page 61744]]

the basis for national, regional, and international modal regulations, 
including the IMDG Code and the ICAO Technical Instructions.
    Since publication of the 1990 rule, PHMSA has issued 11 additional 
international harmonization rulemakings under the following dockets: 
HM-215A [59 FR 67390; Dec. 29, 1994]; HM-215B [62 FR 24690; May 6, 
1997]; HM-215C [64 FR 10742; Mar. 5, 1999]; HM-215D [66 FR 33316; June 
21, 2001]; HM-215E [68 FR 44992; July 31, 2003]; HM-215G [69 FR 76044; 
Dec. 20, 2004]; HM-215I [71 FR 78595; Dec. 29, 2006]; HM-215J [74 FR 
2200; Jan. 14, 2009]; HM-215K [76 FR 3308; Jan. 19, 2011]; HM-215L [78 
FR 987; Jan. 7, 2013]; and HM-215M [80 FR 1075; Jan. 8, 2015]. These 
rulemakings were based on biennial updates of the UN Model Regulations, 
the IMDG Code, and the ICAO Technical Instructions.
    Harmonization becomes increasingly important as the volume of 
hazardous materials transported in international commerce grows. It not 
only facilitates international trade by minimizing the costs and other 
burdens of complying with multiple or inconsistent safety requirements 
for transportation of hazardous materials, but it also enhances safety 
when the international standards provide an appropriate level of 
protection. PHMSA actively participates in the development of 
international standards for the transportation of hazardous materials 
and promotes the adoption of standards consistent with the HMR. When 
considering the harmonization of the HMR with international standards, 
PHMSA reviews and evaluates each amendment on its own merit, on its 
overall impact on transportation safety, and on the economic 
implications associated with its adoption. Our goal is to harmonize 
with international standards without diminishing the level of safety 
currently provided by the HMR or imposing undue burdens on the 
regulated community.
    Based on recent review and evaluation, PHMSA proposes to revise the 
HMR to incorporate changes from the 19th Revised Edition of the UN 
Model Regulations, Amendment 38-16 to the IMDG Code, and the 2017-2018 
Edition of the ICAO Technical Instructions, which become effective 
January 1, 2017.\2\
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    \2\ Amendment 38-16 to the IMDG Code may be voluntarily applied 
on January 1, 2017; however, the previous amendment remains 
effective through December 31, 2017.
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    In addition, PHMSA proposes to incorporate by reference the newest 
editions of various international standards. These standards 
incorporated by reference are authorized for use, under specific 
circumstances, in part 171 subpart C of the HMR. This proposed rule is 
necessary to incorporate revisions to the international standards and, 
if adopted in the HMR, will be effective January 1, 2017.

Possible Interim Final Rule

    The changes to the international standards will take effect on 
January 1, 2017. Therefore, it is essential that a final rule 
incorporating these standards by reference be published no later than 
December 31, 2016 with an effective date of January 1, 2017. Otherwise, 
U.S. companies--including numerous small entities competing in foreign 
markets--will be at an economic disadvantage because of their need to 
comply with a dual system of regulations (specifically, the HMR, UN 
Model Regulations, and ICAO Technical Instructions). To this end, if it 
appears a final rule under this docket will not be published prior to 
January 1, 2017, PHMSA will publish a bridging document in the form of 
an interim final rule to amend the HMR by incorporating the 19th 
Revised Edition of the UN Recommendations and the 2017-2018 Edition of 
the ICAO Technical Instructions.
    With regard to Amendment 38-16 of the IMDG Code, the International 
Maritime Organization (IMO) approved an implementation date of January 
1, 2018. The current edition of the IMDG Code (Amendment 37-14) remains 
in effect through 2017; therefore, we will not include the newest 
version of the IMDG Code in any bridging document. The proposed 
incorporation by reference of the newest edition of the IMDG Code and 
all other changes proposed in this NPRM would be addressed in a 
subsequent final rule also under this docket [PHMSA-2015-0273 (HM-
215N)]. Accordingly, any interim final rule will only incorporate by 
reference editions of the international standards that become effective 
on January 1, 2017.

III. Incorporation by Reference Discussion Under 1 CFR Part 51

    The UN Recommendations on the Transport of Dangerous Goods--Model 
Regulations, Manual of Tests and Criteria, and Globally Harmonized 
System of Classification and Labelling of Chemicals, as well as all of 
the Transport Canada Clear Language Amendments, are free and easily 
accessible to the public on the internet, with access provided through 
the parent organization Web sites. The ICAO Technical Instructions, 
IMDG Code, and all ISO references are available for interested parties 
to purchase in either print or electronic versions through the parent 
organization Web sites. The price charged for those not freely 
available helps to cover the cost of developing, maintaining, hosting, 
and accessing these standards. The specific standards are discussed at 
length in the ``Section-by-Section Review'' for Sec.  171.7.

IV. Harmonization Proposals in This NPRM

    In addition to various other revisions to the HMR, PHMSA proposes 
the following amendments to harmonize the HMR with the most recent 
revisions to the UN Model Regulations, ICAO Technical Instructions, and 
IMDG Code, as well as several amendments resulting from coordination 
with Canada under the U.S.-Canada RCC:
     Incorporation by Reference: PHMSA proposes to incorporate 
by reference the latest editions of various international transport 
standards including the 2017-2018 Edition of the ICAO Technical 
Instructions; Amendment 38-16 of the IMDG Code; the 6th Revised Edition 
of the UN Manual of Tests and Criteria; the 6th Revised Edition of the 
United Nations Globally Harmonized System of Classification and 
Labelling of Chemicals; and the 19th Revised Edition of the UN Model 
Regulations. Additionally, we are proposing to update our incorporation 
by reference of the Canadian TDG Regulations to include SOR/2014-152 
and SOR/2014-159 published July 2, 2014; SOR/2014-159 Erratum published 
July 16, 2014; SOR/2014-152 Erratum published August 27, 2014; SOR/
2014-306 published December 31, 2014; SOR/2014-306 Erratum published 
January 28, 2015; and SOR/2015-100 published May 20, 2015. This 
incorporation by reference augments the broad reciprocity provided in 
Sec.  171.12 where the HMR allow the use of the TDG Regulations under 
certain conditions when transporting hazardous materials to or from 
Canada by highway or rail. Finally, PHMSA proposes the incorporation by 
reference of new and updated ISO standards.
     Hazardous Materials Table (HMT): PHMSA proposes amendments 
to the HMT to add, revise, or remove certain proper shipping names, 
hazard classes, packing groups, special provisions, packaging 
authorizations, bulk packaging requirements, vessel stowage and 
segregation requirements, and passenger and cargo aircraft maximum 
quantity limits.
     Packaging Requirements for Water-Reactive Materials 
Transported by

[[Page 61745]]

Vessel: PHMSA proposes various amendments to packaging requirements for 
vessel transportation of water-reactive substances. The amendments 
include changes to the packaging requirements to require certain 
commodities to have hermetically sealed packaging and to require other 
commodities--when packed in flexible, fiberboard, or wooden 
packagings--to have sift-proof and water-resistant packaging or 
packaging fitted with a sift-proof and water-resistant liner. These 
proposed changes are consistent with IMDG Code requirements.
     Hazard Communication Requirements for Lithium Batteries: 
PHMSA proposes to revise hazard communication requirements for lithium 
batteries consistent with changes adopted in the 19th Revised Edition 
of the UN Model Regulations. Specifically, PHMSA proposes to adopt a 
new lithium battery label in place of the existing Class 9 label; to 
amend the existing marking requirements for small lithium battery 
shipments in Sec.  173.185(c) to incorporate a new standard lithium 
battery mark for use across all modes; to remove the documentation 
requirement in Sec.  173.185(c) for shipments of small lithium cells 
and batteries; and to amend the exception for small lithium cells and 
batteries requiring the lithium battery mark from the current 
applicability of ``no more than four lithium cells or two lithium 
batteries installed in the equipment'' to ``no more than four lithium 
cells or two lithium batteries contained in equipment, where there are 
not more than two packages in the consignment.''
     Engine, Internal Combustion/Machinery, Internal 
Combustion: PHMSA proposes to harmonize the HMT entries for the 
transportation of engines and machinery containing engines with those 
in the UN Model Regulations. Additionally, PHMSA proposes harmonization 
with the IMDG Code for domestic vessel shipments of engines, internal 
combustion, and machinery containing combustion engines. Under the 
proposals in this NPRM, the existing ``Engine, internal combustion'' 
entries would be assigned their own UN numbers and hazard class based 
on the type of fuel (e.g., a flammable liquid powered engine is 
assigned a proper shipping name with a Class 3 designation). Existing 
requirements and exceptions for the transportation of engines and 
machinery containing engines transported by road, rail, and aircraft 
would remain unchanged. PHMSA is, however, proposing to harmonize the 
transportation requirements for transportation by vessel, which 
includes varying degrees of hazard communication based on the type of 
fuel, amount of fuel, and capacity of the fuel tank.
     U.S.-Canada Regulatory Cooperation Council (RCC) 
Proposals: The Prime Minister of Canada and the President of the United 
States created the U.S.-Canada Regulatory Cooperation Council in 2011. 
Through this effort, the United States and Canada strive to strengthen 
regulatory cooperation and reciprocity to enhance economic 
competitiveness while maintaining high standards of health, safety, and 
environmental protection. DOT, together with Transport Canada, have 
collaborated to develop a regulatory partnership statement and work 
plan, both of which can be viewed at http://trade.gov/rcc. Stakeholder 
input (which can be viewed at www.regulations.gov under Docket No. 
PHMSA 2012-0058), as well as internal and mutual regulatory review, 
help determine work plan initiatives and areas where enhanced 
regulatory cooperation and reciprocity might be feasible and beneficial 
provided there is no compromise in safety. Three primary initiatives 
identified in the work plan are the recognition of inspection and 
repair of cargo tanks under the U.S. requirements for highway 
transport, the mutual recognition of standard pressure receptacles 
(cylinders), and mutual recognition of DOT special permits and 
Transport Canada equivalency certificates.

--PHMSA proposes to address the cargo tank initiative by authorizing 
facilities in Canada that hold a Certificate of Authorization for 
repair from a provincial pressure vessel jurisdiction to repair DOT 
specification cargo tanks that are used to transport hazardous 
materials in the United States. PHMSA further proposes to except those 
facilities from registering in accordance with part 107 subpart F of 
the HMR provided they are registered in accordance with the Transport 
Canada TDG Regulations. This proposed authority and exception would 
provide carriers with additional access to repair facilities in Canada 
without jeopardizing the DOT specification of a cargo tank and broaden 
reciprocity with Canada, which already recognizes repairs of TC 
specification cargo tanks performed by authorized and registered 
facilities in the United States.
--PHMSA proposes to address the cylinder initiative by authorizing the 
filling, requalification, and use of cylinders manufactured in 
accordance with the TDG Regulations that have a corresponding DOT 
specification in the HMR. Mutual recognition of cylinder specifications 
and requalification inspections will mean cylinder users that 
frequently conduct business that crosses the border will not need to 
maintain two sets of substantially similar cylinders.
--PHMSA proposes to address the equivalency certificate initiative by 
amending the HMR to allow shipments offered in accordance with an 
equivalency certificate to transit to their first destination without 
having to apply for a duplicative special permit from PHMSA.

V. Amendments Not Being Considered for Adoption in This NPRM

    PHMSA's goal in this rulemaking is to maintain consistency between 
the HMR and the international requirements. We are not striving to make 
the HMR identical to the international regulations but rather to remove 
or avoid potential barriers to international transportation.
    PHMSA proposes changes to the HMR based on amendments adopted in 
the 19th Revised Edition of the UN Model Regulations, the 2017-2018 
Edition of the ICAO Technical Instructions, and Amendment 38-16 to the 
IMDG Code. We are not, however, proposing to adopt all of the 
amendments made to the various international standards into the HMR.
    In many cases, amendments to the international recommendations and 
regulations are not adopted into the HMR because the framework or 
structure makes adoption unnecessary. In other cases, we have 
addressed, or will address, the amendments in separate rulemaking 
proceedings. If we have inadvertently omitted an amendment in this 
NPRM, we will attempt to include the omission in the final rule; 
however, our ability to make changes in a final rule is limited by 
requirements of the Administrative Procedure Act (5 U.S.C. 553). In 
some instances, we can adopt a provision inadvertently omitted in the 
NPRM if it is clearly within the scope of changes proposed in the 
notice. Otherwise, in order to provide opportunity for notice and 
comment, the change must first be proposed in an NPRM.
    The following is a list of notable amendments to the international 
regulations that PHMSA is not considering for adoption in this NPRM:
     Large Salvage Cylinders: The 17th Revised Edition of the 
UN Model Regulations includes guidelines for Competent Authorities to 
use when issuing approvals for salvage pressure

[[Page 61746]]

receptacles. These revisions are found in Chapter 1.2, 4.1, 5.4, and 
6.2 of the UN Model Regulations. Specifically, these requirements 
address the packaging, hazard communication, and safe transport of 
salvage pressure receptacles, also known as salvage cylinders in the 
United States. The 19th Revised Edition of the UN Model Regulations 
includes changes to the definition and packaging allowances for salvage 
cylinders. These changes authorize the use of a large salvage cylinder 
with a water capacity not exceeding 3,000 L to transport a cylinder 
with a water capacity up to 1,000 L. Salvage cylinders still require 
approval by appropriate Competent Authorities.
    The HMR currently address the packaging, hazard communication, and 
safe transport of salvage cylinders in Sec.  173.3(d) and do not 
require approval of the Associate Administrator to do so. PHMSA 
considers the current salvage cylinder requirements in the HMR to 
provide a sufficient level of safety and adequately address the 
shipment of damaged and defective cylinders. It is appropriate that 
larger salvage cylinders go through the existing approval process. 
Therefore, PHMSA is not proposing changes to the current HMR 
requirements for salvage cylinders.
     Large Packagings for Waste Aerosols: The 19th Revised 
Edition of the UN Model Regulations includes changes to the large 
packaging requirements for waste aerosols. The most notable change was 
to the packing group (PG) performance level required for large 
packagings transporting waste aerosols--from PG III to PG II. The HMR 
do not currently authorize the use of large packagings for aerosols. 
Therefore, PHMSA is not proposing changes to the current HMR 
requirements for large packagings for waste aerosols.
     Table Tennis Balls: The 19th Revised Edition of the UN 
Model Regulations includes a special provision assigned to ``UN 2000, 
Celluloid'' that excepts table tennis balls made of celluloid from the 
requirements of the Model Regulations if the total net mass of each 
table tennis ball does not exceed 3 grams and the net mass of table 
tennis balls does not exceed 500 grams per package. In a previously 
issued letter of interpretation (Ref. No. 14-0141), PHMSA stated that 
``it is the opinion of this office that the entry for UN 2000 Celluloid 
only applies when the material is in a pre-manufactured state i.e. 
blocks, rod, rolls, sheets, tubes etc.'' We further stated: ``Based on 
the information provided in your letter, including form and quantity of 
celluloid contained in the table tennis balls, it is our determination 
the table tennis balls are not in a quantity and form that pose an 
unreasonable risk to health, safety or property during transportation 
and, therefore, are not subject to regulation under the HMR.''
    PHMSA maintains our position as stated in the letter of 
interpretation (Ref. No. 14-0141) that table tennis balls are not 
subject to the requirements of the HMR and that the ``UN 2000, 
Celluloid'' entry only applies when the material is in a pre-
manufactured state (i.e. blocks rod, rolls, sheets, tubes, etc). 
Therefore, PHMSA is not proposing changes to the current HMR 
requirements to provide an exception for UN 2000.
     IMO Portable Tank Marking: Amendment 38-16 to the IMDG 
Code includes an amendment to require IMO portable tanks manufactured 
before January 1, 2003, to be marked with an indication of the portable 
tank instruction for which it meets the minimum test pressure, minimum 
shell thickness, pressure relief requirements, and bottom opening 
requirements (i.e., the appropriate portable tank instruction). This 
change was made to clarify that the existing requirement for marking 
portable tanks with the portable tank instruction either on the tank 
itself or the tank data plate also applied to older IMO type portable 
tanks manufactured before January 1, 2003. PHMSA did not adopt the 
requirement for portable tanks to be marked with an indication of the 
portable tank instruction to which they comply when this requirement 
was first introduced. Therefore, PHMSA is not proposing changes to the 
current HMR requirements for IMO type portable tank markings. PHMSA 
notes, however, that portable tanks utilized in international 
transportation will need to be marked with an indication of an 
appropriate portable tank instruction.
     Classification Inconsistencies: The 19th Revised Edition 
of the UN Model Regulations includes text to address situations in 
which a consignor who is aware, on the basis of test data, that a 
substance listed by name in column 2 of the Dangerous Goods List in 
Chapter 3.2 of the UN Model Regulations meets classification criteria 
for a hazard class or division that is not identified in the list, may 
with the approval of the competent authority consign the substance:
--Under the same UN number and name but with additional hazard 
communication information as appropriate to reflect the additional 
subsidiary risk(s) (e.g., documentation, label, placard) provided that 
the primary hazard class remains unchanged and that any other transport 
conditions (e.g., limited quantity, packing and tank provisions) that 
would normally apply to substances possessing such a combination of 
hazards are the same as those applicable to the substance listed; or
--Under the most appropriate generic or n.o.s. entry reflecting all 
hazards.
    The HMR, in Sec. Sec.  172.402(a)(2) and 172.202(a)(3), allow and 
in most cases require hazardous materials exhibiting an additional 
subsidiary hazard to be labeled with the subsidiary hazard and to have 
the additional hazard described on shipping papers.
    As detailed in the definition of Competent Authority Approval in 
Sec.  107.1, specific regulations in subchapter A or C of the HMR are 
considered Competent Authority Approvals. PHMSA generally does not 
issue Competent Authority Approvals for situations already addressed by 
the HMR. Therefore, PHMSA is not proposing such changes to the current 
HMR requirements. Although PHMSA is not incorporating language 
specifically requiring a Competent Authority Approval in situations 
where a consignor has determined a substance has a different subsidiary 
risk than those identified in the HMT, we maintain the power to do so 
in order to facilitate commerce in situations where other competent 
authorities or carriers require such a document be provided.
     Filling Procedures for UN Pressure Receptacles: The 19th 
Revised Edition of the UN Model Regulations includes text in P200 
requiring the filling of pressure receptacles to be carried out by 
qualified staff using appropriate equipment and procedures. These 
procedures are described as including checks of the following: 
conformity of receptacles and accessories with the UN Model 
Regulations, compatibility of the cylinder with the product to be 
transported, absence of damage that might affect safety, compliance 
with the degree or pressure of filling, and accuracy of marks and 
identification. Additionally, five ISO standards concerning inspection 
and filling of various cylinders were incorporated into P200. 
Compliance with these filling procedures is considered met if the 
appropriate ISO standard is applied.
    The existing HMR requirements for filling procedures for pressure 
receptacles provide a sufficient level of safety and adequately address 
filling requirements for pressure vessels. Therefore, PHMSA is not 
proposing changes to the current HMR requirements for the filling of 
pressure receptacles nor the adoption of any of

[[Page 61747]]

the five ISO standards applicable to filling conditions and 
inspections.
     Intentionally Infected Animals: The 2017-2018 ICAO 
Technical Instructions adopted changes to the classification framework 
for infected live animals and animal materials. These changes are 
intended to support consistent classification for infected animals and 
animal materials. The issue was brought to the attention of the UN Sub-
Committee at its 48th session, but they were not able to ascertain the 
impact of the changes made to the ICAO Technical Instructions or if 
further changes were necessary to the UN Model Regulations. The 
representative from ICAO who presented the paper noted they would come 
back with an additional paper and clarifications at the next session. 
As work at the UN Sub-Committee is still ongoing, PHMSA is not 
proposing changes to the current HMR requirements for the 
classification or transportation of infected live animals or animal 
materials at this time.
     Special Aircraft Operations: The 2017-2018 ICAO Technical 
Instructions adopted changes to the general exceptions for hazardous 
materials carried by an aircraft in special aircraft operations (e.g., 
air ambulance, search and rescue). These changes are to clarify that 
hazardous materials involved in these special aircraft operations for 
related purposes (e.g., training flights and positioning flights prior 
to or after maintenance) are excepted from the ICAO Technical 
Instructions as stated in Part 1, Chapter 1. On June 2, 2016, PHMSA 
published a final rule [Docket No. PHMSA-2013-0225 (HM-218H); 81 FR 
35483] that revised Sec.  175.1(d) (formerly Sec.  175.9(b)(4)) to 
clarify that staging operations and other operations related to 
dedicated air ambulance, firefighting, or search and rescue operations 
are intended to be excepted from the HMR when in compliance with the 
[Federal Aviation Regulations] (FAR).'' Accordingly, PHMSA and the 
Federal Aviation Administration (FAA) believe that the current special 
aircraft operation's provisions in Sec.  175.1(d) sufficiently provide 
the flexibility to allow for these types of flight activities (e.g., 
training flights and positioning flights prior to or after 
maintenance). Therefore, PHMSA is not proposing changes to the current 
HMR requirements for special aircraft operations.
     Enhanced Safety Provisions for Lithium Batteries 
Transported by Aircraft: The 2015-2016 Edition of the ICAO Technical 
Instructions adopted enhanced safety provisions for lithium batteries 
transported by aircraft, effective April 1, 2016. These amendments (1) 
prohibit the transport of lithium ion cells and batteries as cargo on 
passenger aircraft; (2) require all lithium ion cells and batteries to 
be shipped at not more than a 30 percent state of charge on cargo-only 
aircraft; and (3) limit the use of alternative provisions for small 
lithium cell or battery shipments under 49 CFR 173.185(c). PHMSA is 
considering adopting these amendments in a separate rulemaking. Further 
information is available in the docket for this rulemaking [PHMSA-2016-
0014].
     Sterilization Devices Containing Nitrogen Tetroxide or 
Nitric Oxide: The 2017-2018 ICAO Technical Instructions adopted special 
provision A211 to allow for the transport of sterilization devices that 
contain small quantities of ``UN 1067, Nitrogen dioxide'' and ``UN 
1660, Nitric oxide, compressed'' by both passenger and cargo aircraft. 
We are not proposing incorporation of ICAO special provision A211 at 
this time.
    While we did not oppose the adoption of this provision at ICAO, we 
did so recognizing that the transport environment and infrastructure is 
much different in parts of the world outside of the United States; and 
that consistent with our harmonization rulemaking considerations we 
would assess how best to address this topic within the HMR. During the 
time these amendments were being considered by ICAO, we received a 
special permit application that detailed more specific information than 
was available during the ICAO deliberations. Additionally, PHMSA 
received a petition for rulemaking (P-1672) requesting PHMSA harmonize 
with the recently adopted ICAO TI provisions for sterilization devices. 
Based on the lack of broad applicability, the technically specific 
nature of these devices and packaging systems, the significant toxicity 
hazard and corresponding risk to air transport, and the benefit of 
considering additional operational controls available to mitigate risk, 
it is our determination that transport in accordance with the 
provisions of ICAO special provision A211 are more suitably addressed 
through PHMSA's Special Permit program.
     Cylinders Containing Gases for Use in Fire Extinguishers 
or Stationary Fire-Fighting Installations: In some cases cylinders that 
are not a permanent component of a fire extinguisher or a stationary 
fire-fighting installation are transported separately from these fire 
extinguishers (e.g., prior to their use in the fire extinguisher or 
stationary fire-fighting installation and for filling). At the 44th 
session of the UN Sub-Committee, it was agreed that when the cylinder 
containing the compressed gas is transported separately, it should be 
subject to the same requirements as conventional cylinders.
    On July 26, 2016, PHMSA published a NPRM [Docket No. PHMSA-2011-
0140 (HM-234); 81 FR 48977] proposing to revise the Sec.  173.309 
introductory text to include cylinders used as part of a fire 
suppression system as a cylinder type authorized for transport in 
accordance with the HMT entry for fire extinguishers. The HM-234 NPRM 
notes the controls detailed in Sec.  173.309 provide an acceptable 
level of safety regardless of whether the cylinder is equipped for use 
as a handheld fire extinguisher or as a component of a fixed fire 
suppression system.
    As this issue is already being considered in an open rulemaking, we 
are not proposing to make any changes to the transport provisions for 
fire extinguishers or cylinders used in fire extinguishers. All 
comments, including potential impacts arising from differing domestic 
and international requirements, concerning transport requirements for 
cylinders used in fire extinguishers should be submitted to the HM-234 
docket (Docket No. PHMSA-2011-0140) at http://www.regulations.gov.

VI. Section-By-Section Review

    The following is a section-by-section review of the amendments 
proposed in this NPRM:

Part 107

Section 107.502
    Section 107.502 provides general requirements for the registration 
of cargo tank and cargo tank motor vehicle manufacturers, assemblers, 
repairers, inspectors, testers, and design certifying engineers. In 
this NPRM, PHMSA proposes to revise paragraph (b) to provide an 
exception from the registration requirements for certain persons 
engaged in the repair, as defined in Sec.  180.403, of DOT 
specification cargo tanks by facilities in Canada in accordance with 
the proposed Sec.  180.413(a)(1)(iii) in this NPRM. Persons engaged in 
the repair of cargo tanks in Canada are required to register in 
accordance with the Transport Canada TDG Regulations as the Canadian 
registration requirements are substantially equivalent to those in part 
107 subpart F of the HMR. The registration information is available on 
Transport Canada's Web site at http://wwwapps.tc.gc.ca/saf-sec-sur/3/fdr-rici/highway/tanks.aspx. The Transport Canada TDG Regulations 
except persons

[[Page 61748]]

repairing TC specification cargo tanks at facilities in the United 
States from registering in Canada if they are registered in accordance 
with part 107 subpart F.
    Therefore, PHMSA believes that requiring the registration of 
Canadian cargo tank repair facilities authorized by the proposed Sec.  
180.413(a)(1)(iii) would be unnecessarily duplicative and that 
excepting them from registering in accordance with part 107 subpart F 
would augment reciprocity without negatively impacting safety. See 
``Harmonization Proposals in this NPRM'' and the Sec.  180.413 entry in 
the ``Section-by-Section Review'' of this document for additional 
background and discussion of this proposal.
Section 107.801
    Section 107.801 prescribes approval procedures for persons seeking 
to engage in a variety of activities regulated by PHMSA (i.e., 
independent inspection agencies, cylinder requalification). In this 
NPRM, PHMSA proposes to amend paragraph (a)(2) to include provisions 
for persons seeking approval to engage in the requalification, 
rebuilding, or repair of a cylinder manufactured in accordance with a 
Transport Canada (TC), Canadian Transportation Commission (CTC), Board 
of Transport Commissioners for Canada (BTC) or Canadian Railway 
Commission (CRC) specification under the Transport Canada TDG 
Regulations. Persons engaged in the requalification, rebuilding, or 
repair of TC, CTC, CRC, or BTC specification cylinders in the U.S. are 
required to register with DOT in accordance with this subpart. PHMSA 
will issue a new approval or revise an existing one to reflect the 
applicant's intent to requalify TC cylinders. Upon approval, the 
Requalifier Identification Number (RIN) holder must mark the TC 
cylinder in accordance with applicable Transport Canada TDG Regulations 
except that the requalifier's registered mark shall be replaced with 
the DOT RIN. See the discussion of proposed changes to Sec.  107.805 
for additional requirements and exceptions.
Section 107.805
    Section 107.805 prescribes the requirements cylinder and pressure 
receptacle requalifiers need to meet in order to be approved by PHMSA. 
In this NPRM, PHMSA proposes to amend paragraph (a) to authorize 
prospective requalifiers to obtain approval by PHMSA to inspect, test, 
certify, repair, or rebuild TC specification cylinders; to amend 
paragraph (c)(2) to ensure the types of TC cylinders intended to be 
inspected, tested, repaired, or rebuilt at the facility are included in 
the application for approval to PHMSA; and to amend paragraph (d) to 
include various TC cylinders to the list of cylinders requiring 
issuance of a RIN to requalifiers.
    PHMSA also proposes to amend paragraph (f) to recognize facilities 
authorized by Transport Canada to requalify comparable DOT 
specification cylinders, as well as DOT RIN holders to requalify 
comparable Transport Canada cylinders subject to modification of their 
existing approval. PHMSA recognizes that Transport Canada's approval 
and registration requirements are substantially equivalent to the 
requirements in 49 CFR part 107 subpart I and provide an equivalent 
level of safety. In addition, traceability is maintained based on 
Transport Canada's publicly available Web site at http://wwwapps.tc.gc.ca/saf-sec-sur/3/fdr-rici/cylinder/requalifier.aspx, 
which allows tracing of a DOT specification cylinder marked with a 
Transport Canada assigned requalifier's registered mark back to the 
appropriate requalification facility.\3\
---------------------------------------------------------------------------

    \3\ The search function on Transport Canada's Web site allows 
users to search for the registered mark of requalifiers. Searching 
by the registered mark found on a cylinder will allow interested 
parties to verify that the cylinder was requalified by a facility 
certified by Transport Canada.
---------------------------------------------------------------------------

    The proposed addition of paragraph (f)(2) would allow persons who 
are already registered with PHMSA to perform requalification functions 
on DOT specification cylinders to register to requalify corresponding 
TC cylinder specifications without additional review by an independent 
inspection agency. Specifications considered equivalent are identified 
in the preamble to this notice (see Table 1 in Sec.  171.12 
discussion). Applicants would be required to submit all of the 
information prescribed in Sec.  107.705(a) that identifies the TC, CTC, 
CRC, or BTC specification cylinder(s) or tube(s) to be inspected; 
certifies the requalifier will operate in compliance with the 
applicable TDG regulations; and certifies the persons performing 
requalification have been trained in the functions applicable to the 
requalifier activities.
    The proposed addition of paragraph (f)(3) would allow persons who 
are already registered with Transport Canada to requalify corresponding 
DOT specification cylinders without additional application to PHMSA for 
approval. This proposed exception would provide cylinder owners with 
additional access to repair and requalification facilities in Canada, 
while also broadening reciprocity with Canada.

Part 171

Section 171.2
    Section 171.2 prescribes general requirements for each person 
performing functions covered by this subchapter. PHMSA proposes to 
amend paragraph (h)(1) by adding the letters ``TC,'' ``CRC,'' and 
``BTC'' to the list of specification indications that may not be 
misrepresented according to Sec.  171.2(g). This is necessary as a 
result of proposed amendments in Sec.  171.12 authorizing the use of 
various Transport Canada approved specification cylinders under certain 
conditions.
Section 171.7
    Section 171.7 provides a listing of all voluntary consensus 
standards incorporated by reference into the HMR, as directed by the 
``National Technology Transfer and Advancement Act of 1996.'' According 
to the Office of Management and Budget (OMB), Circular A-119, ``Federal 
Participation in the Development and Use of Voluntary Consensus 
Standards and in Conformity Assessment Activities,'' government 
agencies must use voluntary consensus standards wherever practical in 
the development of regulations. Agency adoption of industry standards 
promotes productivity and efficiency in government and industry, 
expands opportunities for international trade, conserves resources, 
improves health and safety, and protects the environment.
    PHMSA actively participates in the development and updating of 
consensus standards through representation on more than 20 consensus 
standard bodies and regularly reviews updated consensus standards and 
considers their merit for inclusion in the HMR. For this rulemaking, we 
evaluated updated international consensus standards pertaining to 
proper shipping names, hazard classes, packing groups, special 
provisions, packaging authorizations, air transport quantity 
limitations, and vessel stowage requirements and determined that the 
revised standards provide an enhanced level of safety without imposing 
significant compliance burdens. These standards have well-established 
and documented safety histories, and their adoption will maintain the 
high safety standard currently achieved under the HMR. Therefore, in 
this NPRM, PHMSA proposes to add and revise the following incorporation 
by reference materials:

[[Page 61749]]

     Paragraph (t)(1), which incorporates the International 
Civil Aviation Organization Technical Instructions for the Safe 
Transport of Dangerous Goods by Air, 2015-2016 Edition, would be 
revised to incorporate the 2017-2018 Edition. The International Civil 
Aviation Organization Technical Instructions for the Safe Transport of 
Dangerous Goods by Air contain detailed instructions necessary for the 
safe international transport of dangerous goods by air. The ICAO TI 
supports the broad principles by establishing requirements necessary to 
ensure hazardous materials are safely transported in aircraft while 
providing a level of safety that protects the aircraft and its 
occupants from undue risk.
     Paragraph (v)(2), which incorporates the International 
Maritime Organization International Maritime Dangerous Goods Code, 2014 
Edition, Incorporating Amendment 37-14, English Edition, Volumes 1 and 
2, would be revised to incorporate the 2016 Edition, Amendment 38-16. 
The International Maritime Organization International Maritime 
Dangerous Goods Code is intended to provide for the safe transportation 
of hazardous materials by vessel, protect crew members and to prevent 
marine pollution. The Code is based on the UN Model Regulations, but 
also includes additional requirements applicable to the transport of 
hazardous materials by sea (e.g., requirements for marine pollutants; 
freight container loading procedures; stowage and segregation; and 
other requirements applicable to shipboard safety and preservation of 
the marine environment) that are not covered by the UN Model 
Regulations.
     Paragraph (w), which incorporates various International 
Organization for Standardization entries, would be revised to 
incorporate by reference standards for the specification, design, 
construction, testing, and use of gas cylinders:

--ISO 3807:2013 Gas cylinders--Acetylene cylinders--Basic requirements 
and type testing is proposed for incorporation in paragraph (w)(16). 
ISO 3807:2013 specifies the basic and type testing requirements for 
acetylene cylinders with and without fusible plugs with a maximum 
nominal water capacity of 150 L (39.62 gallons) and requirements 
regarding production/batch test procedures for manufacturing of 
acetylene cylinders with porous material.
--ISO 7866:2012 Gas cylinders--Refillable seamless aluminium alloy gas 
cylinders--Design, construction and testing; and ISO 7866:2012/Cor 
1:2014 Gas cylinders--Refillable seamless aluminium alloy gas 
cylinders--Design, construction and testing, Technical Corrigendum 1 
are proposed for incorporation in paragraphs (w)(27) and (w)(28). ISO 
7866:2012 specifies minimum requirements for the material, design, 
construction and workmanship, manufacturing processes and tests at time 
of manufacture of refillable seamless aluminium alloy gas cylinders of 
water capacities up to and including 150 L (39.62 gallons) for 
compressed, liquefied and dissolved gases for worldwide use.
--ISO 11114-2:2013 Gas cylinders--Compatibility of cylinder and valve 
materials with gas contents--Part 2: Non-metallic materials is proposed 
for incorporation in paragraph (w)(48). ISO 11114-2:2013 gives guidance 
in the selection and evaluation of compatibility between non-metallic 
materials for gas cylinders and valves and the gas contents. It also 
covers bundles, tubes and pressure drums.
--ISO 9809-4:2014 Gas cylinders--Refillable seamless steel gas 
cylinders--Design, construction and testing--Part 4: Stainless steel 
cylinders with an Rm value of less than 1 100 MPa is proposed for 
incorporation in paragraph (w)(36). ISO 9809-4:2014 specifies the 
minimum requirements for the material, design, construction and 
workmanship, manufacturing processes, examinations, and tests at 
manufacture of refillable seamless stainless steel gas cylinders of 
water capacities from 0.5 L (.13 gallons) up to and including 150 L 
(39.62 gallons) for compressed, liquefied, and dissolved gases.
--ISO 10297:2014 Gas cylinders--Cylinder valves--Specification and type 
testing is proposed for incorporation in paragraph (w)(42). ISO 
10297:2014 specifies design, type testing and marking requirements for: 
(a) Cylinder valves intended to be fitted to refillable transportable 
gas cylinders; (b) main valves (excluding ball valves) for cylinder 
bundles; (c) cylinder valves or main valves with integrated pressure 
regulator (VIPR); which convey compressed, liquefied or dissolved 
gases.
--ISO 10462:2013 Gas cylinders--Transportable cylinders for dissolved 
acetylene--Periodic inspection and maintenance is proposed for 
incorporation in paragraph (w)(44). ISO 10462:2013 specifies 
requirements for the periodic inspection of acetylene cylinders as 
required for the transport of dangerous goods and for maintenance in 
connection with periodic inspection. It applies to acetylene cylinders 
with and without solvent and with a maximum nominal water capacity of 
150 L (39.62 gallons).
--ISO 11119-1:2012 Gas cylinders--Refillable composite gas cylinders 
and tubes--Design, construction and testing--Part 1: Hoop wrapped fibre 
reinforced composite gas cylinders and tubes up to 450 l; ISO 11119-
2:2012 Gas cylinders--Refillable composite gas cylinders and tubes--
Design, construction and testing--Part 2: Fully wrapped fibre 
reinforced composite gas cylinders and tubes up to 450 l with load-
sharing metal liners; ISO 11119-2:2012/Amd 1:2014 Gas cylinders--
Refillable composite gas cylinders and tubes--Design, construction and 
testing--Part 2: Fully wrapped fibre reinforced composite gas cylinders 
and tubes up to 450 l with load-sharing metal liners; and ISO 11119-
3:2013 Gas cylinders--Refillable composite gas cylinders and tubes--
Design, construction and testing--Part 3: Fully wrapped fibre 
reinforced composite gas cylinders and tubes up to 450 l with non-load-
sharing metallic or non-metallic liners are proposed for incorporation 
in paragraphs (w)(54), (w)(56), (w)(57), and (w)(59), respectively. ISO 
11119-1:2012, ISO 11119-2:2012, and ISO 11119-3:2013 specify 
requirements for composite gas cylinders and tubes between 0.5 L (39.62 
gallons) and 450 L (119 gallons) water capacity, for the storage and 
conveyance of compressed or liquefied gases.
--ISO 11515:2013 Gas cylinders--Refillable composite reinforced tubes 
of water capacity between 450 L and 3000 L--Design, construction and 
testing is proposed for incorporation in paragraph (w)(62). ISO 
11515:2013 specifies minimum requirements for the design, construction 
and performance testing of composite reinforced tubes between 450 L 
(119 gallons) and 3,000 L (792.5 gallons) water capacity, for 
transport, storage and use of compressed or liquefied gases with test 
pressures up to and including 1600 bar with a design life of at least 
15 years and less than or equal to 30 years.

     Paragraph (bb)(1), which incorporates the Transport Canada 
Transportation of Dangerous Goods Regulations, would add subparagraphs 
(xiii), (xiv), (xv), (xvi), (xvii), (xviii), and (xix) to include SOR/
2014-152 and SOR/2014-159 published July 2, 2014; SOR/2014-159 Erratum 
published July

[[Page 61750]]

16, 2014; SOR/2014-152 Erratum published August 27, 2014; SOR/2014-306 
published December 31, 2014; SOR/2014-306 Erratum published January 28, 
2015; and SOR/2015-100 published May 20, 2015, respectively. The 
Transport Canada Transportation of Dangerous Goods Regulations proposed 
for incorporation in this NPRM are updates to the existing 
Transportation of Dangerous Goods Regulations and cover all updates 
made by Transport Canada between January 2014-May 2015.
     Paragraph (dd)(1), which incorporates the United Nations 
Recommendations on the Transport of Dangerous Goods--Model Regulations, 
18th Revised Edition (2013), Volumes I and II, would be revised to 
incorporate the 19th Revised Edition (2015), Volumes I and II. The 
United Nations Model Regulations on the Transport of Dangerous Goods 
provide a basis for development of harmonized regulations for all modes 
of transport, in order to facilitate trade and the safe, efficient 
transport of hazardous materials.
     Paragraph (dd)(2), which incorporates the United Nations 
Recommendations on the Transport of Dangerous Goods--Manual of Tests 
and Criteria, 5th Revised Edition (2009), would be revised to 
incorporate the 6th Revised Edition (2015). The Manual of Tests and 
Criteria contains criteria, test methods and procedures to be used for 
classification of dangerous goods according to the provisions of Parts 
2 and 3 of the United Nations Recommendations on the Transport of 
Dangerous Goods, Model Regulations, as well as of chemicals presenting 
physical hazards according to the Globally Harmonized System of 
Classification and Labelling of Chemicals (GHS).
     Paragraph (dd)(3) would be added to incorporate the United 
Nations Recommendations on the Transport of Dangerous Goods, Globally 
Harmonized System of Classification and Labelling of Chemicals (GHS), 
6th Revised Edition (2015). Section 172.401 references the 
incorporation by reference of the GHS in Sec.  171.7; however, this 
entry does not currently appear in Sec.  171.7. The proposed addition 
of this paragraph would correct this oversight. The Globally Harmonized 
System of Classification and Labelling of Chemicals (GHS), addresses 
classification of chemicals by types of hazard and proposes harmonized 
hazard communication elements, including labels and safety data sheets. 
It aims at ensuring that information on physical hazards and toxicity 
from chemicals be available in order to enhance the protection of human 
health and the environment during the handling, transport and use of 
these chemicals. The GHS also provides a basis for harmonization of 
rules and regulations on chemicals at national, regional and worldwide 
level, an important factor also for trade facilitation.
Section 171.8
    Section 171.8 defines terms generally used throughout the HMR that 
have broad or multi-modal applicability. In this NPRM, PHMSA proposes 
to add the following terms and definitions:
     Design life: PHMSA proposes to add the term ``design 
life'' to define the maximum life of composite cylinders and tubes. 
This term is specifically limited to references in the HMR related to 
composite cylinders and tubes.
     SAPT: PHMSA proposes to add the term ``SAPT'' and a 
reference to Sec.  173.21(f). SAPT means self-accelerated 
polymerization temperature. See Sec.  173.21(f) of this subchapter. 
This is consistent with the similar term SADT (self-accelerated 
decomposition temperature).
     Service life: PHMSA proposes to add the term ``service 
life'' to define the number of years a composite cylinder or tube is 
permitted to be in service. This term is specifically limited to 
references in the HMR related to composite cylinders and tubes.
    Additionally, PHMSA proposes to amend the definitions for the 
following terms:
     Aerosol: PHMSA proposes to revise the definition of 
``aerosol'' to clarify that it is an article. Currently under the HMR, 
an aerosol is considered to be an article and therefore the use of 
inner packagings in a combination package in not necessary. However, 
practice has shown that an aerosol is often mistaken for the inner 
packaging of a combination packaging, including both the substance 
dispensed (liquid, paste, or powder) and the propellant gas itself.
     Large salvage packaging: PHMSA proposes to revise the 
definition of ``large salvage packaging'' to add a reference to non-
conforming hazardous materials packages to be consistent with the 
wording in the definition of ``salvage packaging.''
     UN tube: PHMSA proposes to revise the definition of ``UN 
tube,'' which describes it as a seamless pressure receptacle, to 
specify that the term includes composite cylinders.
Section 171.12
    Section 171.12 prescribes requirements for the use of the Transport 
Canada TDG Regulations. Under the U.S.-Canada RCC, which was 
established in 2011 by the President of the United States and the 
Canadian Prime Minister, PHMSA and Transport Canada, with input from 
stakeholders, identified impediments to cross-border transportation of 
hazardous materials. In this NPRM, PHMSA proposes to address these 
barriers by amending the HMR to expand recognition of cylinders, cargo 
tank repair facilities, and equivalency certificates in accordance with 
the TDG Regulations.
    The HMR in Sec.  171.12(a)(1) provide general authorizations to use 
the TDG Regulations for hazardous materials transported from Canada to 
the United States, from the United States to Canada, or through the 
United States to Canada or a foreign destination. PHMSA proposes to 
amend Sec.  171.12(a)(1) to authorize the use of a Transport Canada 
equivalency certificate for such road or rail transportation of a 
hazardous material shipment. Consistent with existing authorizations to 
utilize the TDG Regulations for transportation from Canada to the 
United States, the proposed authorization to use a Transport Canada 
equivalency certificate only applies until the shipment's initial 
transportation ends. In other words, once a shipment offered in 
accordance with a Transport Canada equivalency certificate reaches the 
destination shown on either a transport document or package markings, 
transportation under the authorization in Sec.  171.12 has ended. Any 
subsequent offering of packages imported under a Transport Canada 
equivalency certificate would have to be done in full compliance with 
the HMR. Transport Canada is proposing amendments to the TDG 
Regulations to authorize similar reciprocal treatment of PHMSA special 
permits.
    The HMR in Sec.  171.12(a)(4) authorize the transportation of a 
cylinder authorized by the Transport Canada TDG Regulations to, from, 
or within the United States. Currently this authorization is limited to 
Canadian Transport Commission (CTC) cylinders corresponding to a DOT 
specification cylinder and UN pressure receptacles marked with ``CAN.'' 
In this NPRM, PHMSA proposes to amend paragraph (a)(4)(ii) authorizing 
the use of Canadian manufactured cylinders. Specifically, PHMSA 
proposes to authorize the transportation of CTC, CRC, BTC, and TC 
cylinders that have a corresponding DOT specification cylinder 
prescribed in the HMR.
    This proposal does not remove or amend existing requirements for 
DOT specification cylinders; rather, PHMSA proposes to provide that a 
shipper may use either a DOT specification cylinder or a TC cylinder as 
appropriate. The goal of these amendments is to promote

[[Page 61751]]

flexibility; to permit the use of advanced technology for the 
requalification and use of pressure receptacles; to provide for a 
broader selection of authorized pressure receptacles; to reduce the 
need for special permits; and to facilitate cross-border transportation 
of these cylinders.
    Additionally, PHMSA proposes to amend paragraph (a)(4) to authorize 
the filling, maintenance, testing, and use of CTC, CRC, BTC, and TC 
cylinders that have a corresponding DOT specification cylinder as 
prescribed in HMR. This authorization will extend the recognition of 
cylinders manufactured in Canada to be filled, used, and requalified 
(including rebuild, repair, reheat-treatment) in the United States in 
accordance with the TDG Regulations.
    Table 1 lists the Canadian cylinders with the corresponding DOT 
specification cylinders:

                                 Table 1
------------------------------------------------------------------------
                                  DOT (some or all   CTC (some or all of
                                  of these may also   these may also be
               TC                 be marked with a    marked with a BTC
                                     ICC prefix)      and a CRC prefix)
------------------------------------------------------------------------
TC-3AM.........................  DOT-3A [ICC-3]....  CTC-3A
TC-3AAM........................  DOT-3AA...........  CTC-3AA
TC-3ANM........................  DOT-3BN...........  CTC-3BN
TC-3EM.........................  DOT-3E............  CTC-3E
TC-3HTM........................  DOT-3HT...........  CTC-3HT
TC-3ALM........................  DOT-3AL...........  CTC-3AL
--                               DOT-3B............  CTC-3B
TC-3AXM........................  DOT-3AX...........  CTC-3AX
TC-3AAXM.......................  DOT-3AAX..........  CTC-3AAX
TC-3TM.........................  DOT-3T............
TC-4AAM33......................  DOT-4AA480........  CTC-4AA480
TC-4BM.........................  DOT-4B............  CTC-4B
TC-4BM17ET.....................  DOT-4B240ET.......  CTC-4B240ET
TC-4BAM........................  DOT-4BA...........  CTC-4BA
TC-4BWM........................  DOT-4BW...........  CTC-4BW
TC-4DM.........................  DOT-4D............  CTC-4D
TC-4DAM........................  DOT-4DA...........  CTC-4DA
TC-4DSM........................  DOT-4DS...........  CTC-4DS
TC-4EM.........................  DOT-4E............  CTC-4E
TC-39M.........................  DOT-39............  CTC-39
TC-4LM.........................  DOT-4L............  CTC-4L
                                 DOT-8.............  CTC-8
                                 DOT-8AL...........  CTC-8AL
------------------------------------------------------------------------

    A U.S.-based facility is permitted to refill and use a cylinder 
marked as meeting CTC specification provided it complies with the 
applicable requirements specified in Sec.  171.12. In accordance with 
Sec.  171.12(a)(4), when the provisions of subchapter C of the HMR 
require that a DOT specification or a UN pressure receptacle must be 
used for a hazardous material, a packaging authorized by Transport 
Canada's TDG Regulations may be used only if it corresponds to the DOT 
specification or UN standard authorized by this subchapter.
    If implemented, the proposed actions described above would resolve 
many of the existing reciprocity issues, streamline the processing of 
Canadian cylinders within the United States, and alleviate unnecessary 
burdens on the transportation industry. DOT RIN holders may requalify 
and mark a TC cylinder in accordance with applicable TDG Regulations, 
including the application of metric markings.
Section 171.23
    Section 171.23 prescribes requirements for specific materials and 
packagings transported under the various international standards 
authorized by the HMR. PHMSA proposes to amend paragraph (a) to add TC, 
CTC, BTC, or CRC specification cylinders to the list of cylinders which 
may be transported to from or within the United States.

Part 172

Section 172.101
    Section 172.101 provides the Hazardous Materials Table (HMT), as 
well as instructions for its use. Readers should review all changes for 
a complete understanding of the amendments. For purposes of the 
Government Printing Office's typesetting procedures, proposed changes 
to the HMT appear under three sections of the Table: ``remove,'' 
``add,'' and ``revise.'' Certain entries in the HMT, such as those with 
revisions to the proper shipping names, appear as a ``remove'' and 
``add.'' In this NPRM, PHMSA proposes to amend the HMT for the 
following:
    New HMT entries:
     UN 0510 Rocket Motors, Division 1.4C
    This new HMT entry is the result of packaged products of low power 
``Rocket motors'' that typically meet test criteria for assignment to 
Division 1.4, Compatibility Group C, but are assigned to 1.3C (i.e., UN 
0186) or the 1.4C n.o.s. classification (i.e., UN 0351). This 1.4 
rocket motor entry accurately reflects the product type and hazard of 
these articles and allows for the assignment of specific packaging 
instructions. With the addition of an internationally recognized proper 
shipping name and identification number, PHMSA is considering the 
removal of the existing HMT entry ``NA 0276, Model rocket motor.'' We 
specifically solicit comment on the potential impact of removing the 
existing ``NA 0276'' 1.4C HMT entry.
     UN 3527 Polyester resin kit, solid base material
    This new HMT entry addresses polyester resin kits with a base 
material that does not meet the definition of Class 3 (Flammable 
liquid) and is more appropriately classed as a Division 4.1 (Flammable 
solid). Presently, polyester resin kits are limited to those with a 
Class 3 liquid base material component and are assigned under the entry 
UN 3269. This new entry permits products with a viscous base component 
containing a flammable solvent that

[[Page 61752]]

does not meet the definition of a flammable liquid but does meet the 
definition of a flammable solid.
     UN 3528 Engine, internal combustion, flammable liquid 
powered or Engine, fuel cell, flammable liquid powered or Machinery, 
internal combustion, flammable liquid powered or Machinery, fuel cell, 
flammable liquid powered
     UN 3529 Engine, internal combustion, flammable gas powered 
or Engine, fuel cell, flammable gas powered or Machinery, internal 
combustion, flammable gas powered or Machinery, fuel cell, flammable 
gas powered
     UN 3530 Engine, internal combustion or Machinery, internal 
combustion
    These new HMT entries apply to the fuel contained in engines and 
machinery powered by Class 3 flammable liquids, Division 2.1 gases, and 
Class 9 environmentally hazardous substances. The previous entry 
applicable to these articles, UN 3166, is now applicable to vehicles 
only. As a result of the new ``Engine'' and ``Machinery'' entries, the 
entries ``UN 3166, Engines, internal combustion, or Engines, fuel cell, 
flammable gas powered'' and ``UN 3166, Engines internal combustion, or 
Engines, fuel cell, flammable liquid powered'' are removed.
     UN 3531 Polymerizing substance, solid, stabilized, n.o.s.
     UN 3532 Polymerizing substance, liquid, stabilized, n.o.s.
     UN 3533 Polymerizing substance, solid, temperature 
controlled, n.o.s.
     UN 3534 Polymerizing substance, liquid, temperature 
controlled, n.o.s.
    These new Division 4.1 HMT entries are added for polymerizing 
substances that do not meet the criteria for inclusion in any other 
hazard class.
     Catecholborane (also known as 1, 3, 2-Benzodioxaborole)
    At the ICAO DGP/25 meeting, the Panel was informed of an incident 
involving Catecholborane (also known as 1, 3, 2-Benzodioxaborole) that 
resulted in an industry recommendation to forbid transport of the 
substance by air unless transported in pressure receptacles and under 
cooled conditions. The material was classified as ``UN 2924, Flammable 
liquid, corrosive, n.o.s.'' The product properties indicated (1) that 
the substance decomposes to borane gas at a rate of 2 percent per week 
at room temperature, (2) that borane gas could ignite when in contact 
with moist air, and (3) that catecholborane could react violently with 
water. The incident occurred after transport of the substance was 
delayed for nine days as the result of extreme weather conditions with 
temperatures consistently above 33 [deg]C (91[emsp14][deg]F). After 
being stored for approximately two weeks at a low temperature at the 
destination, several bottles containing the substance exploded and 
caught fire. It was concluded that moist air entered the bottles during 
the long transit time under high temperatures causing a chemical 
reaction and pressure build up. Panel members suspected a 
classification problem, but they could not determine whether this was 
due to shipper error or a limitation in the classification criteria in 
the regulations. The issue was submitted to the attention of the UN 
Sub-Committee at the December 2016 meeting for further review and 
determination if a new classification was required. In the interim, a 
new light type entry was added to the ICAO Technical Instructions 
Dangerous Goods List with a new special provision (A210) assigned to 
``Catecholborane'' and ``1, 3, 2-Benzodioxaborole'' forbidding the 
substance for transport by air on both passenger and cargo aircraft. 
Transport on cargo aircraft would be possible with the approval of the 
State of Origin and State of the Operator.
    Consistent with the ICAO Technical Instructions, PHMSA proposes to 
add new HMT entries in italics for ``Catecholborane'' and ``1, 3, 2-
Benzodioxaborole'' and to assign a new special provision A210 
clarifying that this material is forbidden for air transport unless 
approved by the Associate Administrator.
    Amendments to column (2) hazardous materials descriptions and 
proper shipping names:
    Section 172.101(c) describes column (2) of the HMT and the 
requirements for hazardous materials descriptions and proper shipping 
names.
     PHMSA proposes to amend the proper shipping name for ``UN 
3269, Polyester resin kit'' by adding the italicized text ``liquid base 
material.'' This is consistent with the format of the new HMT entry for 
polyester resin kits with a solid base material.
     PHMSA proposes to amend the proper shipping names for ``UN 
3151, Polyhalogenated biphenyls, liquid or Polyhalogenated terphenyls, 
liquid'' and ``UN 3152, Polyhalogenated biphenyls, solid or 
Polyhalogenated terphenyls, solid'' by adding ``Halogenated 
monomethyldiphenylmethanes, liquid'' and ``Halogenated 
monomethyldiphenylmethanes, solid,'' respectively. Noting that 
halogenated monomethyldiphenylmethanes have similar chemical and 
ecotoxicological properties as polychlorinated biphenyls (PCBs) and 
polychlorinated terphenyls (PCTs), we propose this revision to ensure 
that they are considered as PCBs or PCTs for the purposes of transport.
    Amendments to column (3) hazard class or division:
    Section 172.101(d) describes column (3) of the HMT and the 
designation of the hazard class or division corresponding to each 
proper shipping name.
    PHMSA proposes to revise the hazard class of ``UN 3507, Uranium 
hexafluoride, radioactive material, excepted package, less than 0.1 kg 
per package, non-fissile or fissile-excepted,'' from Class 8 to 
Division 6.1 and subsequently to add the Class 8 hazard as a subsidiary 
hazard label code in column (6). This revision is based on the 
precedence provisions for classification of materials possessing more 
than one hazard and is consistent with the 19th Revised Edition of the 
UN Model Regulations. The presence of a Division 6.1 hazard was 
determined following a thorough review of literature and test data on 
uranium hexafluoride. A summary of the data and a proposal to revise 
the primary hazard class from Class 8 to Division 6.1 was provided in 
Working Paper ST/SG/AC.10/C.3/2014/60, which was submitted to the 45th 
session of the UN Sub-Committee of Experts on the Transport of 
Dangerous Goods and is available at http://www.unece.org/fileadmin/DAM/trans/doc/2013/dgac10c3/ST-SG-AC.10-C.3-2014-60e.pdf.
    Amendments to column (6) label(s):
    Section 172.101(g) describes column (6) of the HMT and the labels 
required (primary and subsidiary) for specific entries in the HMT.
    Data presented to the UNSCOE in this last biennium indicated a need 
for the addition of a subsidiary hazard of Division 6.1 to be assigned 
to ``UN 2815, N-Aminoethylpiperazine,'' ``UN 2977, Radioactive 
material, uranium hexafluoride, fissile,'' and ``UN 2978, Radioactive 
material, uranium hexafluoride non fissile or fissile-excepted.'' PHMSA 
proposes to make appropriate amendments to the HMT to account for these 
revisions to the UN Model Regulations.
    For the HMT entry, ``UN 3507, Uranium hexafluoride, radioactive 
material, excepted package, less than 0.1 kg per package, non-fissile 
or fissile-excepted,'' PHMSA proposes to revise the labels for 
consistency with the change made to the classification of this material 
under amendments to column (3) (see above). The Class 8 (Corrosive) 
primary hazard label would be revised to a Division 6.1 primary hazard 
label and Class 8 subsidiary hazard label in

[[Page 61753]]

addition to the existing Class 7 (Radioactive) subsidiary hazard label 
to read ``6.1, 7, 8.''
    Amendments to column (7) special provisions:
    Section 172.101(h) describes column (7) of the HMT whereas Sec.  
172.102(c) prescribes the special provisions assigned to specific 
entries in the HMT. The particular modifications to the entries in the 
HMT are discussed below. See ``Section 172.102 special provisions'' 
below for a detailed discussion of the proposed additions, revisions, 
and deletions to the special provisions addressed in this NPRM.
     In this NPRM, new special provision 157 is proposed to be 
assigned to the HMT entry ``UN 3527, Polyester resin kit, solid base 
material.''
     In this NPRM, new special provision 379 is proposed to be 
assigned to the HMT entries ``UN1005, Ammonia, anhydrous'' and ``UN 
3516, Adsorbed gas, toxic, corrosive, n.o.s.''
     In the 19th Revised Edition of the UN Model Regulations, 
new special provision 386 was assigned to the four new ``n.o.s.'' HMT 
entries for polymerizing substances and to the 52 named substances in 
the HMT that polymerize, all of which contain the text ``stabilized'' 
as part of the proper shipping name, except for ``UN 2383, 
Dipropylamine'' (see Table 2 below). This new special provision 
includes transport controls to avoid dangerous polymerization reactions 
including the use of chemical stabilization or temperature control.
    In this NPRM, new special provision 387 (special provision 386 
already exists) is proposed to be assigned to all 52 HMT entries.

                                 Table 2
------------------------------------------------------------------------
                  Proper shipping name                        UN No.
------------------------------------------------------------------------
Acrolein dimer, stabilized..............................          UN2607
Acrolein, stabilized....................................          UN1092
Acrylic acid, stabilized................................          UN2218
Acrylonitrile, stabilized...............................          UN1093
Allyl isothiocyanate, stabilized........................          UN1545
Allyltrichlorosilane, stabilized........................          UN1724
Bicyclo [2,2,1] hepta-2,5-diene, stabilized or 2,5-               UN2251
 Norbornadiene, stabilized..............................
Butadienes, stabilized or Butadienes and Hydrocarbon              UN1010
 mixture, stabilized containing more than 40% butadienes
Butyl acrylates, stabilized.............................          UN2348
n-Butyl methacrylate, stabilized........................          UN2227
Butyl vinyl ether, stabilized...........................          UN2352
1,2-Butylene oxide, stabilized..........................          UN3022
Chloroprene, stabilized.................................          UN1991
Crotonaldehyde or Crotonaldehyde, stabilized............          UN1143
Cyanogen chloride, stabilized...........................          UN1589
Diketene, stabilized....................................          UN2521
Dipropylamine...........................................          UN2383
Divinyl ether, stabilized...............................          UN1167
Ethyl acrylate, stabilized..............................          UN1917
Ethyl methacrylate, stabilized..........................          UN2277
Ethylacetylene, stabilized..............................          UN2452
Ethyleneimine, stabilized...............................          UN1185
Hydrogen cyanide, stabilized with less than 3 percent             UN1051
 water..................................................
Hydrogen cyanide, stabilized, with less than 3 percent            UN1614
 water and absorbed in a porous inert material..........
Isobutyl acrylate, stabilized...........................          UN2527
Isobutyl methacrylate, stabilized.......................          UN2283
Isoprene, stabilized....................................          UN1218
Methacrylaldehyde, stabilized...........................          UN2396
Methacrylic acid, stabilized............................          UN2531
Methacrylonitrile, stabilized...........................          UN3079
Methyl acetylene and propadiene mixtures, stabilized....          UN1060
Methyl acrylate, stabilized.............................          UN1919
Methyl isopropenyl ketone, stabilized...................          UN1246
Methyl methacrylate monomer, stabilized.................          UN1247
Methyl vinyl ketone, stabilized.........................          UN1251
Propadiene, stabilized..................................          UN2200
Propyleneimine, stabilized..............................          UN1921
Styrene monomer, stabilized.............................          UN2055
Sulfur trioxide, stabilized.............................          UN1829
Tetrafluoroethylene, stabilized.........................          UN1081
Trifluorochloroethylene, stabilized or Refrigerant gas R          UN1082
 1113...................................................
Vinyl acetate, stabilized...............................          UN1301
Vinyl bromide, stabilized...............................          UN1085
Vinyl butyrate, stabilized..............................          UN2838
Vinyl chloride, stabilized..............................          UN1086
Vinyl ethyl ether, stabilized...........................          UN1302
Vinyl fluoride, stabilized..............................          UN1860
Vinyl isobutyl ether, stabilized........................          UN1304
Vinyl methyl ether, stabilized..........................          UN1087
Vinylidene chloride, stabilized.........................          UN1303
Vinylpyridines, stabilized..............................          UN3073
Vinyltoluenes, stabilized...............................          UN2618
------------------------------------------------------------------------


[[Page 61754]]

     In this NPRM, new special provision 422 is proposed to be 
assigned to the HMT entries ``UN 3480, Lithium ion batteries including 
lithium ion polymer batteries''; ``UN 3481, Lithium ion batteries 
contained in equipment including lithium ion polymer batteries''; ``UN 
3481 Lithium ion batteries packed with equipment including lithium ion 
polymer batteries''; ``UN 3090, Lithium metal batteries including 
lithium alloy batteries''; ``UN 3091, Lithium metal batteries contained 
in equipment including lithium alloy batteries''; and ``UN3091, Lithium 
metal batteries packed with equipment including lithium alloy 
batteries.''
     In this NPRM, special provision 134 is proposed to be 
removed from the HMT entry ``UN 3072, Life-saving appliances, not self-
inflating containing dangerous goods as equipment'' and replaced with 
new special provision 182. On January 8, 2015, PHMSA published a final 
rule [Docket No. PHMSA-2013-0260 (HM-215M); 80 FR 1075] that added 
special provision 134 to ``UN 3072.'' The intent of this action was to 
harmonize with special provision A182 of the ICAO Technical 
Instructions to clarify that equipment containing only lithium 
batteries must be classified as either lithium batteries contained in 
or packed with equipment ``UN 3091'' or ``UN 3481.'' In reviewing the 
assignment of special provision 134 to ``UN 3072'' to make this 
clarification, PHMSA found that the provisions of special provision 134 
are not assigned to ``UN 3072'' in any international standard, but 
rather to the entry for ``UN 3171, Battery-powered vehicle or Battery-
powered equipment.'' Although special provision 134 does require that 
equipment powered only by lithium metal batteries or lithium ion 
batteries must be consigned under the entries associated with lithium 
batteries contained in or packed with equipment, the rest of special 
provision 134 is not applicable to ``Life-saving appliances, not self-
inflating containing dangerous goods as equipment.'' As a result, PHMSA 
proposes a new special provision 182 applicable only to the HMT entry 
for ``UN 3072, Life-saving appliances, not self-inflating containing 
dangerous goods as equipment'' to clarify that equipment containing 
only lithium batteries must be classified as either lithium batteries 
contained in or packed with equipment ``UN 3091'' or ``UN 3481,'' as 
appropriate.
     In this NPRM, new special provision A210 is proposed to be 
assigned to the new HMT italicized entries for ``Catecholborane'' and 
``1, 3, 2-Benzodioxaborole.''
     In this NPRM, new special provision A212 is proposed to be 
assigned to the HMT entry ``UN 2031, Nitric acid other than red fuming, 
with more than 20 percent and less than 65 percent nitric acid.''
     In this NPRM, new special provision B134 is proposed to be 
assigned to the PG III entries in Table 4 to be consistent with 
revisions to the IMDG Code.

                                 Table 4
------------------------------------------------------------------------
                  Proper shipping name                        UN No.
------------------------------------------------------------------------
Aluminum powder, coated.................................          UN1309
Ferrous metal borings or Ferrous metal shavings or                UN2793
 Ferrous metal turnings or Ferrous metal cuttings in a
 form liable to self-heating............................
Iron oxide, spent, or Iron sponge, spent obtained from            UN1376
 coal gas purification..................................
Magnesium or Magnesium alloys with more than 50 percent           UN1869
 magnesium in pellets, turnings or ribbons..............
Peroxides, inorganic, n.o.s.............................          UN1483
Titanium sponge granules or Titanium sponge powders.....          UN2878
------------------------------------------------------------------------

     In this NPRM, new special provision B135 is proposed to be 
assigned to the PG III entries in Table 5 consistent with revisions to 
the IMDG Code.

                                 Table 5
------------------------------------------------------------------------
                  Proper shipping name                        UN No.
------------------------------------------------------------------------
Hafnium powder, dry.....................................          UN2545
Metal catalyst, dry.....................................          UN2881
Metal powder, self-heating, n.o.s.......................          UN3189
Titanium powder, dry....................................          UN2546
Zirconium powder, dry...................................          UN2008
Zirconium scrap.........................................          UN1932
------------------------------------------------------------------------

     In this NPRM, special provision TP1 is changed to TP2 for 
the following entries: ``UN 2672, Ammonia solution, relative density 
between 0.880 and 0.957 at 15 degrees C in water, with more than 10 
percent but not more than 35 percent ammonia''; ``UN 2709, Butyl 
benzenes''; ``UN 2241, Cycloheptane''; ``UN 1206, Heptanes''; ``UN 
1208, Hexanes''; ``UN 2294, N-Methylaniline''; ``UN 2296, 
Methylcyclohexane''; ``UN 1920, Nonanes''; ``UN 1262, Octanes''; ``UN 
2368, alpha-Pinene''; ``UN 1272, Pine oil''; ``UN 2850, Propylene 
tetramer''; ``UN 2325, 1,3,5-Trimethylbenzene''; ``UN 2057, 
Tripropylene''; ``UN 1299, Turpentine''; and ``UN 1840, Zinc chloride, 
solution.'' Tank provision TP2 authorizes a slightly lower degree of 
filling than TP1. The IMDG Code follows a guiding principle that 
assigns TP2 to materials that are marine pollutants. In a previous 
harmonization rulemaking (HM-215M; 80 FR 1075), PHMSA added various 
hazardous materials to the list of marine pollutants in appendix B to 
Sec.  172.101, but both the HMT and IMDG Code failed to change the TP 
code from TP1 to TP2 to authorize a lower degree of filling.
     In this NPRM, special provisions T9, TP7, and TP33 are 
proposed to be assigned to the HMT entry ``UN 1415, Lithium.'' This 
permits UN 1415 for transportation in UN portable tanks consistent with 
similar Division 4.3, PG I materials.
     In this NPRM, new special provisions W31, W32, W40, and 
W100 are proposed to certain water-reactive substances. The proposed 
special provisions correspond with special packaging provisions PP31, 
PP31 ``modified'' (Packing Instruction P403), PP40, and PP100 of the 
IMDG Code, respectively. Table 6 contains the proposed changes listed 
in alphabetical order and showing the proper shipping name, UN 
identification number, and the proposed special provision(s).

                                 Table 6
------------------------------------------------------------------------
      Proper shipping name            UN No.       Proposed addition(s)
------------------------------------------------------------------------
Alkali metal alcoholates, self-           UN3206  W31
 heating, corrosive, n.o.s.
Alkali metal alloys, liquid,              UN1421  W31
 n.o.s.
Alkali metal amalgam, liquid....          UN1389  W31
Alkali metal amalgam, solid.....          UN3401  W32
Alkali metal amides.............          UN1390  W31, W40
Alkali metal dispersions,                 UN3482  W31
 flammable or Alkaline earth
 metal dispersions, flammable.
Alkali metal dispersions, or              UN1391  W31
 Alkaline earth metal
 dispersions.

[[Page 61755]]

 
Alkaline earth metal                      UN3205  W31
 alcoholates, n.o.s.
Alkaline earth metal alloys,              UN1393  W31, W40
 n.o.s.
Alkaline earth metal amalgams,            UN1392  W31
 liquid.
Alkaline earth metal amalgams,            UN3402  W32
 solid.
Aluminum carbide................          UN1394  W31, W40
Aluminum ferrosilicon powder (PG          UN1395  W31, W40
 II).
Aluminum hydride................          UN2463  W32
Aluminum phosphide..............          UN1397  W32
Aluminum phosphide pesticides...          UN3048  W31
Aluminum powder, coated.........          UN1309  W100
Aluminum powder, uncoated.......          UN1396  W31, W40
Aluminum silicon powder,                  UN1398  W31, W40
 uncoated.
Aluminum smelting by-products or          UN3170  W31, W40
 Aluminum remelting by-products
 (PG II).
Aluminum smelting by-products or          UN3170  W31
 Aluminum remelting by-products
 (PG III).
2-Amino-4,6-Dinitrophenol,                UN3317  W31
 wetted with not less than 20
 percent water by mass.
Ammonium picrate, wetted with             UN1310  W31
 not less than 10 percent water,
 by mass.
Arsenic acid, liquid............          UN1533  W31
Barium..........................          UN1400  W31, W40
Barium alloys, pyrophoric.......          UN1854  W31
Barium azide, wetted with not             UN1571  W31
 less than 50 percent water, by
 mass.
Barium cyanide..................          UN1565  W31
Barium peroxide.................          UN1449  W100
Beryllium, powder...............          UN1567  W100
Boron trifluoride diethyl                 UN2604  W31
 etherate.
Boron trifluoride dimethyl                UN2965  W31
 etherate.
Bromobenzyl cyanides, liquid....          UN1694  W31
Bromobenzyl cyanides, solid.....          UN3449  W31
Calcium.........................          UN1401  W31, W40
Calcium carbide (PG I)..........          UN1402  W32
Calcium carbide (PG II).........          UN1402  W31, W40
Calcium cyanamide with more than          UN1403  W31, W40
 0.1 percent of calcium carbide.
Calcium cyanide.................          UN1575  W31
Calcium dithionite or Calcium             UN1923  W31
 hydrosulfite.
Calcium hydride.................          UN1404  W32
Calcium manganese silicon.......          UN2844  W31
Calcium peroxide................          UN1457  W100
Calcium phosphide...............          UN1360  W32
Calcium, pyrophoric or Calcium            UN1855  W31
 alloys, pyrophoric.
Calcium silicide (PG II)........          UN1405  W31
Calcium silicide (PG III).......          UN1405  W31, W40
Carbon, activated...............          UN1362  W31
Carbon disulfide................          UN1131  W31
Cerium, slabs, ingots, or rods..          UN1333  W100
Cerium, turnings or gritty                UN3078  W31, W40
 powder.
Cesium or Caesium...............          UN1407  W32
Chloric acid aqueous solution,            UN2626  W31
 with not more than 10 percent
 chloric acid.
Chlorosilanes, water-reactive,            UN2988  W31
 flammable, corrosive, n.o.s.
Chromium trioxide, anhydrous....          UN1463  W31
Corrosive solids, water-                  UN3096  W100
 reactive, n.o.s (PG II).
Cyanogen bromide................          UN1889  W31
Decaborane......................          UN1868  W31
Dinitrophenol, wetted with not            UN1320  W31
 less than 15 percent water, by
 mass.
Dinitrophenolates, wetted with            UN1321  W31
 not less than 15 percent water,
 by mass.
Dinitroresorcinol, wetted with            UN1322  W31
 not less than 15 percent water,
 by mass.
Diphenylamine chloroarsine......          UN1698  W31
Diphenylchloroarsine, liquid....          UN1699  W31
Diphenylchloroarsine, solid.....          UN3450  W31
Dipicryl sulfide, wetted with             UN2852  W31
 not less than 10 percent water,
 by mass.
Ethyldichlorosilane.............          UN1183  W31
Ferrocerium.....................          UN1323  W100
Ferrosilicon with 30 percent or           UN1408  W100
 more but less than 90 percent
 silicon.
Ferrous metal borings or Ferrous          UN2793  W100
 metal shavings or Ferrous metal
 turnings or Ferrous metal
 cuttings in a form liable to
 self-heating.
Fibers or Fabrics, animal or              UN1373  W31
 vegetable or Synthetic, n.o.s.
 with animal or vegetable oil.
Fish meal, unstabilized or Fish           UN1374  W31, W40
 scrap, unstabilized.
Hafnium powder, dry.............          UN2545  W31
Hafnium powder, wetted with not           UN1326  W31, W40
 less than 25 percent water (a
 visible excess of water must be
 present) (a) mechanically
 produced, particle size less
 than 53 microns; (b) chemically
 produced, particle size less
 than 840 microns.
Iron oxide, spent, or Iron                UN1376  W100
 sponge, spent obtained from
 coal gas purification.
Isocyanates, flammable, toxic,            UN2478  W31
 n.o.s. or Isocyanate solutions,
 flammable, toxic, n.o.s. flash
 point less than 23 degrees C.

[[Page 61756]]

 
Lithium.........................          UN1415  W32
Lithium aluminum hydride........          UN1410  W32
Lithium borohydride.............          UN1413  W32
Lithium ferrosilicon............          UN2830  W31, W40
Lithium hydride.................          UN1414  W32
Lithium hydride, fused solid....          UN2805  W31, W40
Lithium nitride.................          UN2806  W32
Lithium peroxide................          UN1472  W100
Lithium silicon.................          UN1417  W31, W40
Magnesium aluminum phosphide....          UN1419  W32
Magnesium diamide...............          UN2004  W31
Magnesium granules, coated,               UN2950  W100
 particle size not less than 149
 microns.
Magnesium hydride...............          UN2010  W32
Magnesium or Magnesium alloys             UN1869  W100
 with more than 50 percent
 magnesium in pellets, turnings
 or ribbons.
Magnesium peroxide..............          UN1476  W100
Magnesium phosphide.............          UN2011  W32
Magnesium, powder or Magnesium            UN1418  W32
 alloys, powder (PG I).
Magnesium, powder or Magnesium            UN1418  W31, W40
 alloys, powder (PG II).
Magnesium, powder or Magnesium            UN1418  W31
 alloys, powder (PG III).
Magnesium silicide..............          UN2624  W31, W40
Maneb or Maneb preparations with          UN2210  W100
 not less than 60 percent maneb.
Maneb stabilized or Maneb                 UN2968  W100
 preparations, stabilized
 against self-heating.
Mercuric potassium cyanide......          UN1626  W31
Metal catalyst, dry.............          UN2881  W31
Metal catalyst, wetted with a             UN1378  W31, W40
 visible excess of liquid.
Metal hydrides, flammable,                UN3182  W31, W40
 n.o.s. (PG II).
Metal hydrides, flammable,                UN3182  W31
 n.o.s. (PG III).
Metal hydrides, water reactive,           UN1409  W32
 n.o.s (PG I).
Metal hydrides, water reactive,           UN1409  W31, W40
 n.o.s (PG II).
Metal powder, self-heating,               UN3189  W31
 n.o.s.
Metal powders, flammable, n.o.s.          UN3089  W100
Metal salts of organic                    UN3181  W31
 compounds, flammable, n.o.s.
Metallic substance, water-                UN3208  W32
 reactive, n.o.s (PG I).
Metallic substance, water-        ..............  W31
 reactive, n.o.s (PG II).
Metallic substance, water-                UN3208  W31, W40
 reactive, n.o.s (PG III).
Metallic substance, water-                UN3209  W32
 reactive, self-heating, n.o.s
 (PG I and III).
Metallic substance, water-                UN3209  W32, W40
 reactive, self-heating, n.o.s
 (PG II).
Methyldichlorosilane............          UN1242  W31
Nitrocellulose, with not more             UN2557  W31
 than 12.6 percent nitrogen, by
 dry mass mixture with or
 without plasticizer, with or
 without pigment.
Nitrocellulose with alcohol with          UN2556  W31
 not less than 25 percent
 alcohol by mass, and with not
 more than 12.6 percent
 nitrogen, by dry mass.
Nitrocellulose with water with            UN2555  W31
 not less than 25 percent water
 by mass.
Nitroguanidine, wetted or                 UN1336  W31
 Picrite, wetted with not less
 than 20 percent water, by mass.
4[dash]Nitrophenylhydrazine,              UN3376  W31
 with not less than 30 percent
 water, by mass.
Nitrostarch, wetted with not              UN1337  W31
 less than 20 percent water, by
 mass.
Organometallic substance,                 UN3398  W31
 liquid, water-reactive.
Organometallic substance,                 UN3399  W31
 liquid, water-reactive,
 flammable.
Organometallic substance, solid,          UN3395  W31
 water-reactive.
Organometallic substance, solid,          UN3396  W31
 water-reactive, flammable.
Organometallic substance, solid,          UN3397  W31
 water-reactive, self-heating.
Osmium tetroxide................          UN2471  W31
Paper, unsaturated oil treated            UN1379  W31
 incompletely dried (including
 carbon paper).
Peroxides, inorganic, n.o.s.....          UN1483  W100
9-Phosphabicyclononanes or                UN2940  W31
 Cyclooctadiene phosphines.
Phosphorus heptasulfide, free             UN1339  W31
 from yellow or white phosphorus.
Phosphorus pentasulfide, free             UN1340  W31, W40
 from yellow or white phosphorus.
Phosphorus sesquisulfide, free            UN1341  W31
 from yellow or white phosphorus.
Phosphorus trisulfide, free from          UN1343  W31
 yellow or white phosphorus.
Phosphorus, white dry or                  UN1381  W31
 Phosphorus, white, under water
 or Phosphorus white, in
 solution or Phosphorus, yellow
 dry or Phosphorus, yellow,
 under water or Phosphorus,
 yellow, in solution.
Potassium.......................          UN2257  W32
Potassium borohydride...........          UN1870  W32
Potassium cyanide, solid........          UN1680  W31
Potassium cyanide solution......          UN3413  W31
Potassium dithionite or                   UN1929  W31
 Potassium hydrosulfite.
Potassium, metal alloys, liquid.          UN1420  W31
Potassium, metal alloys, solid..          UN3403  W32
Potassium phosphide.............          UN2012  W32
Potassium sodium alloys, liquid.          UN1422  W31
Potassium sodium alloys, solid..          UN3404  W32

[[Page 61757]]

 
Potassium sulfide, anhydrous or           UN1382  W31, W40
 Potassium sulfide with less
 than 30 percent water of
 crystallization.
Pyrophoric liquids, organic,              UN2845  W31
 n.o.s.
Pyrophoric metals, n.o.s., or             UN1383  W31
 Pyrophoric alloys, n.o.s.
Pyrophoric solid, inorganic,              UN3200  W31
 n.o.s.
Pyrophoric solids, organic,               UN2846  W31
 n.o.s.
Rubidium........................          UN1423  W32
Self-heating liquid, corrosive,           UN3188  W31
 inorganic, n.o.s.
Self-heating liquid, corrosive,           UN3185  W31
 organic, n.o.s.
Self-heating liquid, inorganic,           UN3186  W31
 n.o.s.
Self-heating liquid, organic,             UN3183  W31
 n.o.s.
Self-heating liquid, toxic,               UN3187  W31
 inorganic, n.o.s.
Self-heating liquid, toxic,               UN3184  W31
 organic, n.o.s.
Self-heating solid, inorganic,            UN3190  W31
 n.o.s.
Self-heating solid, organic,              UN3088  W31
 n.o.s.
Silver picrate, wetted with not           UN1347  W31
 less than 30 percent water, by
 mass.
Sodium..........................          UN1428  W32
Sodium aluminum hydride.........          UN2835  W31, W40
Sodium borohydride..............          UN1426  W32
Sodium cyanide, solid...........          UN1689  W31
Sodium cyanide solution.........          UN3414  W31
Sodium dinitro-o-cresolate,               UN3369  W31
 wetted with not less than 10%
 water, by mass.
Sodium dinitro-o-cresolate,               UN1348  W31
 wetted with not less than 15
 percent water, by mass.
Sodium dithionite or Sodium               UN1384  W31
 hydrosulfite.
Sodium hydride..................          UN1427  W32
Sodium hydrosulfide, with less            UN2318  W31
 than 25 percent water of
 crystallization.
Sodium methylate................          UN1431  W31
Sodium phosphide................          UN1432  W32
Sodium picramate, wetted with             UN1349  W31
 not less than 20 percent water,
 by mass.
Sodium sulfide, anhydrous or              UN1385  W31, W40
 Sodium sulfide with less than
 30 percent water of
 crystallization.
Stannic phosphide...............          UN1433  W32
Strontium peroxide..............          UN1509  W100
Strontium phosphide.............          UN2013  W32
Tear gas substances, liquid,              UN1693  W31
 n.o.s.
Tear gas substance, solid, n.o.s          UN3448  W31
4-Thiapentanal..................          UN2785  W31
Thiourea dioxide................          UN3341  W31
Titanium disulphide.............          UN3174  W31
Titanium hydride................          UN1871  W31, W40
Titanium powder, dry............          UN2546  W31
Titanium powder, wetted with not          UN1352  W31, W40
 less than 25 percent water (a
 visible excess of water must be
 present) (a) mechanically
 produced, particle size less
 than 53 microns; (b) chemically
 produced, particle size less
 than 840 microns.
Titanium sponge granules or               UN2878  W100
 Titanium sponge powders.
Titanium trichloride, pyrophoric          UN2441  W31
 or Titanium trichloride
 mixtures, pyrophoric.
Toxic solids, water-reactive,             UN3125  W100
 n.o.s.
Trichlorosilane.................          UN1295  W31
Trinitrobenzene, wetted, with             UN3367  W31
 not less than 10% water, by
 mass.
Trinitrobenzene, wetted with not          UN1354  W31
 less than 30 percent water, by
 mass.
Trinitrobenzoic acid, wetted              UN3368  W31
 with not less than 10% water by
 mass.
Trinitrobenzoic acid, wetted              UN1355  W31
 with not less than 30 percent
 water, by mass.
Trinitrochlorobenzene (picryl             UN3365  W31
 chloride), wetted, with not
 less than 10% water by mass.
Trinitrophenol (picric acid),             UN3364  W31
 wetted, with not less than 10
 percent water by mass.
Trinitrophenol, wetted with not           UN1344  W31
 less than 30 percent water, by
 mass.
Trinitrotoluene (TNT), wetted,            UN3366  W31
 with not less than 10 percent
 water by mass.
Trinitrotoluene, wetted or TNT,           UN1356  W31
 wetted, with not less than 30
 percent water by mass.
Urea nitrate, wetted, with not            UN3370  W31
 less than 10 percent water by
 mass.
Urea nitrate, wetted with not             UN1357  W31
 less than 20 percent water, by
 mass.
Water-reactive liquid, n.o.s....          UN3148  W31
Water-reactive solid, corrosive,          UN3131  W31
 n.o.s (PG I and III).
Water-reactive solid, corrosive,          UN3131  W31, W40
 n.o.s (PG II).
Water-reactive solid, flammable,          UN3132  W31
 n.o.s (PG I and III).
Water-reactive solid, flammable,          UN3132  W31, W40
 n.o.s (PG III).
Water-reactive solid, n.o.s (PG           UN2813  W32
 I).
Water-reactive solid, n.o.s (PG           UN2813  W31, W40
 II).
Water-reactive solid, n.o.s (PG           UN2813  W31
 III).
Water-reactive solid, self-               UN3135  W31
 heating, n.o.s (PG I and III).
Water-reactive solid, self-               UN3135  W31, W40
 heating, n.o.s (PG I).
Water-reactive solid, toxic,              UN3134  W31
 n.o.s (PG I and III).
Water-reactive solid, toxic,              UN3134  W31, W40
 n.o.s (PG II).
Xanthates.......................          UN3342  W31
Xylyl bromide, liquid...........          UN1701  W31

[[Page 61758]]

 
Zinc ashes......................          UN1435  W100
Zinc peroxide...................          UN1516  W100
Zinc phosphide..................          UN1714  W32
Zinc powder or Zinc dust (PG I            UN1436  W31
 and III).
Zinc powder or Zinc dust (PG II)          UN1436  W31, W40
Zirconium hydride...............          UN1437  W31, W40
Zirconium, dry, coiled wire,              UN2858  W100
 finished metal sheets, strip
 (thinner than 254 microns but
 not thinner than 18 microns).
Zirconium, dry, finished sheets,          UN2009  W31
 strip or coiled wire.
Zirconium picramate, wetted with          UN1517  W31
 not less than 20 percent water,
 by mass.
Zirconium powder, dry...........          UN2008  W31
Zirconium powder, wetted with             UN1358  W31, W40
 not less than 25 percent water
 (a visible excess of water must
 be present) (a) mechanically
 produced, particle size less
 than 53 microns; (b) chemically
 produced, particle size less
 than 840 microns.
Zirconium scrap.................          UN1932  W31
------------------------------------------------------------------------

    Amendments to column (9) quantity limitations:
    Section 172.101(j) describes column (9) of the HMT and the quantity 
limitations for specific entries. Furthermore, columns (9A) and (9B) 
specify the maximum quantities that may be offered for transportation 
in one package by passenger-carrying aircraft or passenger-carrying 
rail car (column (9A)) or by cargo-only aircraft (column (9B)). The 
indication of ``forbidden'' means the material may not be offered for 
transportation or transported in the applicable mode of transport.
    In this NPRM, PHMSA proposes for column (9B) a quantity limit of 75 
kg for ``UN 0501, Propellant, solid, Division 1.4C.'' Previously, 
column (9B) forbid the transport of UN 0501 by cargo-only aircraft. 
This new quantity limit is consistent with the authorized quantity 
limit found in the ICAO Technical Instructions. In a working paper 
submitted at the 25th meeting the ICAO DGP, it was noted that while all 
other Division 1.4C explosives listed in the table were forbidden on 
passenger aircraft, only UN 0501 was also forbidden on cargo aircraft. 
A maximum net quantity of 75 kg per package was permitted on cargo 
aircraft for all other Division 1.4C explosives. It was also reported 
that a June 2015 meeting of the United Nations Working Group on 
Explosives had determined that there were no differences between the 
transport risks posed by UN 0501 and other Division 1.4C explosives.
    Amendments to column (10) vessel stowage requirements:
    Section 172.101(k) explains the purpose of column (10) of the HMT 
and prescribes the vessel stowage and segregation requirements for 
specific entries. Column (10) is divided into two columns: column (10A) 
[Vessel stowage] specifies the authorized stowage locations on board 
cargo and passenger vessels, and column (10B) [Other provisions] 
specifies special stowage and segregation provisions. The meaning of 
each code in column (10B) is set forth in Sec.  176.84 of this 
subchapter.
    Consistent with changes to Amendment 38-16 of the IMDG Code, PHMSA 
proposes numerous changes to the vessel stowage location codes shown in 
column (10A) of the HMT. The majority of these changes are a result of 
those made to the IMDG Code to ensure the safe transportation of 
substances requiring stabilization when transported by vessel. Table 7 
contains the proposed changes listed in alphabetical order and showing 
the proper shipping name, UN identification number, current vessel 
stowage location code, and proposed vessel stowage location.

                                                     Table 7
----------------------------------------------------------------------------------------------------------------
                                                                                                     Proposed
                     Proper shipping name                           UN No.      Current  vessel  vessel  stowage
                                                                                  stowage code         code
----------------------------------------------------------------------------------------------------------------
Acrolein dimer, stabilized....................................            2607               A                 C
Acrylonitrile, stabilized.....................................            1093               E                D
N-Aminoethylpiperazine........................................            2815               A                B
Butyl acrylates, stabilized...................................            2348               A                 C
n-Butyl methacrylate, stabilized..............................            2227               A                 C
Butyl vinyl ether, stabilized.................................            2352               B                 C
1,2-Butylene oxide, stabilized................................            3022               B                 C
Ethyl acrylate, stabilized....................................            1917               B                 C
Ethyl methacrylate, stabilized................................            2277               B                 C
Isobutyl acrylate, stabilized.................................            2527               A                 C
Isobutyl methacrylate, stabilized.............................            2283               A                 C
Isoprene, stabilized..........................................            1218               E                D
Methacrylaldehyde, stabilized.................................            2396               E                D
Methyl acrylate, stabilized...................................            1919               B                 C
Methyl isopropenyl ketone, stabilized.........................            1246               B                 C
Methyl methacrylate monomer, stabilized.......................            1247               B                 C
Potassium superoxide..........................................            2466               E                D
Propyleneimine, stabilized....................................            1921               B                D
Radioactive material, uranium hexafluoride non fissile or                 2978               A                B
 fissile-excepted.............................................
Radioactive material, uranium hexafluoride, fissile...........            2977               A                B

[[Page 61759]]

 
Styrene monomer, stabilized...................................            2055               A                 C
Vinyl acetate, stabilized.....................................            1301               B                 C
Vinyl butyrate, stabilized....................................            2838               B                 C
Vinyl isobutyl ether, stabilized..............................            1304               B                 C
Vinylidene chloride, stabilized...............................            1303               E                D
Vinyltoluenes, stabilized.....................................            2618               A                 C
----------------------------------------------------------------------------------------------------------------

    With the addition of a Division 6.1 subsidiary hazard to ``UN 2815, 
N-Aminoethylpiperazine,'' ``UN 2977, Radioactive material, uranium 
hexafluoride, fissile,'' and ``UN 2978, Radioactive material, uranium 
hexafluoride non fissile or fissile-excepted,'' PHMSA proposes that 
code ``40,'' which indicates that the material must be stowed clear of 
living quarters, be added to column (10B) for these entries to remain 
consistent with the IMDG Code.
    As a consequence of adding special provision 387, which addresses 
stabilization requirements to 52 existing entries in the HMT that are 
identified as requiring such, the IMO amended vessel stowage 
requirements for these entries. PHMSA proposes to add code ``25'' to 
column (10B) for the same 52 entries identified in Table 2. We note 
that the IMDG Code did not assign stowage provisions equivalent to code 
``25'' to ``UN 1167, Divinyl ether, stabilized'' or ``UN 2383, 
Dipropylamine.'' Stowage code ``25'' requires these materials to be 
protected from sources of heat. PHMSA believes the omission of this 
stowage requirement in the IMDG Code to be an oversight, and we propose 
to add stowage code ``25'' to these two HMR entries.
    Code ``28'' requires materials to which this code is assigned to be 
stowed away from flammable liquids. In this NPRM, consistent with 
changes to the IMDG Code, PHMSA proposes to remove code ``28'' from 
column (10B) for the following HMT entries: ``UN 2965, Boron 
trifluoride dimethyl etherate''; ``UN 2988, Chlorosilanes, water-
reactive, flammable, corrosive, n.o.s''; ``UN 1183, 
Ethyldichlorosilane''; ``UN 1242, Methyldichlorosilane''; ``UN 3490, 
Toxic by inhalation liquid, water-reactive, flammable, n.o.s. with an 
LC50 lower than or equal to 200 ml/m3 and saturated vapor concentration 
greater than or equal to 500 LC50''; and ``UN 1295, Trichlorosilane.''
    Appendix B to Sec.  172.101:
    Appendix B to Sec.  172.101 lists marine pollutants regulated under 
the HMR. PHMSA proposes to revise the list of marine pollutants by 
adding six new entries to remain consistent with the IMDG Code. These 
changes are proposed to include those substances that were either 
assigned a ``P'' in the dangerous goods list or identified in the 
alphabetical index to Amendment 38-16 of the IMDG Code--based on review 
of evaluations for each individual material, and associated isomers 
where appropriate, performed by the Group of Experts on the Scientific 
Aspects of Marine Environmental Protection (GESAMP) and the GESAMP 
defining criteria for marine pollutants. The following entries are 
proposed to be added to the list of marine pollutants in appendix B to 
Sec.  172.101: Hexanes; Hypochlorite solutions; Isoprene, stabilized; 
N-Methylaniline; Methylcyclohexane; and Tripropylene.
    Section 172.102 special provisions:
    Section 172.102 lists special provisions applicable to the 
transportation of specific hazardous materials. Special provisions 
contain packaging requirements, prohibitions, and exceptions applicable 
to particular quantities or forms of hazardous materials. In this NPRM, 
PHMSA proposes the following revisions to Sec.  172.102 special 
provisions:
     Special Provision 40: Special provision 40 prescribes the 
criteria for classification of a ``Polyester resin kit.'' PHMSA 
proposes to revise special provision 40 by authorizing a polyester 
resin kit to contain a Division 4.1 base material consistent with the 
new HMT entry ``UN 3527, Polyester resin kit, solid base material, 
4.1.''
     Special Provision 134: Special provision 134 prescribes 
the applicability of the HMT entry ``UN 3171, Battery-powered vehicle 
or Battery-powered equipment.'' PHMSA proposes to revise special 
provision 134 by amending the list of battery powered vehicle examples 
to include trucks, locomotives, bicycles (pedal cycles with an electric 
motor) and other vehicles of this type (e.g., self-balancing vehicles 
or vehicles not equipped with at least one seating position), and self-
propelled farming and construction equipment. In addition, PHMSA 
proposes to organize the structure of the special provision into 
paragraph form for ease of reading.
     Special Provision 135: Special provision 135 specifies 
that an internal combustion engine installed in a vehicle must be 
consigned to the entries ``Vehicle, flammable gas powered'' or 
``Vehicle, flammable liquid powered,'' as appropriate. PHMSA proposes 
to revise special provision 135 by clarifying that vehicles powered by 
both a flammable liquid and a flammable gas internal combustion engine 
must be consigned to the entry ``Vehicle, flammable gas powered.'' In 
addition, PHMSA proposes to revise special provision 135 by clarifying 
that for the purpose of this special provision, a ``vehicle'' is a 
self-propelled apparatus designed to carry one or more persons or 
goods. A list of examples is provided.
     Special Provision 157: PHMSA proposes adding new special 
provision 157 and assigning it to ``UN 3527, Polyester resin kit, solid 
base material.'' The special provision would allow the maximum net 
capacity for inner packagings of flammable solids in packing group II 
to be increased to no more than 5 kg (11 pounds) when the material is 
transported as a limited quantity.
     Special Provision 181: PHMSA proposes adding new special 
provision 181 and assigning it to ``UN 3481, Lithium ion batteries 
contained in equipment''; ``UN 3481, Lithium ion batteries packed with 
equipment''; ``UN 3091, Lithium metal batteries contained in 
equipment''; and ``UN 3091, Lithium metal batteries packed with 
equipment.'' The special provision would specify that when lithium 
cells or batteries packed with equipment and lithium cells or batteries 
contained in equipment are packed in the same package, the shipping 
paper (if used) and the package must use the ``packed with'' proper 
shipping name and UN number. Further, all packaging requirements 
applicable to both proper shipping names must be met and the total mass 
of cells or batteries in the package must not exceed the quantity

[[Page 61760]]

limits specified in columns (9A) and (9B), as applicable.
     Special Provision 182: PHMSA proposes adding new special 
provision 182 and assigning it to ``UN 3072, Life-saving appliances, 
not self-inflating containing dangerous goods as equipment'' to clarify 
that equipment containing only lithium batteries must be classified as 
either UN 3091 or UN 3481, as appropriate.
     Special Provision 238: Special provision 238 addresses the 
shipment of neutron radiation detectors. PHMSA proposes to revise 
special provision 238 to align with the UN Model Regulations special 
provision 373 by permitting the packaging to contain ``absorbent'' or 
``adsorbent'' material where the previous requirement permitted 
``absorbent'' material only.
     Special Provision 369: Special provision 369 prescribes 
classification criteria, consignment instructions and transport 
conditions for ``UN 3507, Uranium hexafluoride, radioactive material, 
excepted package, less than 0.1 kg per package, non-fissile or fissile-
excepted.'' PHMSA proposes to revise special provision 369 in 
conjunction with revising the primary classification for UN 3507 from 
Class 8 to Division 6.1. Specifically, PHMSA proposes to clarify that 
this radioactive material in an excepted package possessing toxic and 
corrosive properties is classified in Division 6.1 with radioactive and 
corrosive subsidiary risks.
     Special Provision 379: PHMSA proposes adding new special 
provision 379 and assigning it to the HMT entries ``UN 1005, Ammonia, 
anhydrous'' and ``UN 3516, Adsorbed gas, toxic, corrosive, n.o.s.'' 
This special provision is applicable to ammonia dispensers containing 
adsorbed ammonia, which are used to reduce polluting nitrogen oxide 
emissions from automobiles. The UN Sub-Committee found that the 
substance contained in the receptacles did not meet any criteria for 
classification in the Model Regulations, but it acknowledged that the 
substance did fit the recent definition of an adsorbed gas. Based on 
the stability of adsorption under normal transport conditions, an 
exception for these dispensers was adopted subject to appropriate 
packaging conditions. These materials are normally forbidden for 
transport by air on passenger and cargo aircraft; however, consistent 
with the ICAO Technical Instructions, PHMSA proposes to authorize them 
on cargo aircraft subject to the transport conditions prescribed in the 
special provision with additional approval of the Associate 
Administrator.
     Special Provision 387: PHMSA proposes adding new special 
provision 387 and assigning it to the four new ``n.o.s.'' polymerizing 
substance HMT entries and to the 52 existing HMT entries that are 
identified as requiring stabilization. This special provision sets 
forth the transport conditions when stabilization, or prevention of 
polymerization, is provided through the use of a chemical inhibitor. 
When a substance is stabilized via use of a chemical inhibitor, it is 
important to ensure that the level of stabilization is sufficient to 
prevent the onset of a dangerous reaction under conditions normally 
incident to transportation. This special provision requires a 
determination that the degree of chemical stabilization employed at the 
time the package, IBC, or tank is offered for transport must be 
suitable to ensure that the sustained bulk mean temperature of the 
substance in the package, IBC, or tank will not exceed 50 [deg]C 
(122[emsp14][deg]F), under conditions normally incident to 
transportation. The special provision also specifies that temperature 
control is required at the point where chemical stabilization becomes 
ineffective at lower temperatures within the anticipated duration of 
transport. Consistent with the ICAO Technical Instructions, PHMSA 
proposes to clarify in special provision 387 that these substances are 
forbidden for transport by air when temperature control is required.
     Special Provision 422: PHMSA proposes to add new special 
provision 422 to the HMT entries ``UN 3480, Lithium ion batteries 
including lithium ion polymer batteries''; ``UN 3481, Lithium ion 
batteries contained in equipment including lithium ion polymer 
batteries''; ``UN 3481, Lithium ion batteries packed with equipment 
including lithium ion polymer batteries''; ``UN 3090, Lithium metal 
batteries including lithium alloy batteries''; ``UN 3091, Lithium metal 
batteries contained in equipment including lithium alloy batteries''; 
and ``Lithium metal batteries packed with equipment including lithium 
alloy batteries.'' Special provision 422 states that the new lithium 
battery Class 9 label shown in Sec.  172.447 is to be used for packages 
containing lithium batteries that require labels. Consistent with the 
UN Model Regulations, PHMSA proposes a transition period that would 
authorize labels conforming to requirements in place on December 31, 
2016 to continue to be used until December 31, 2018. Class 9 placards, 
when used, must conform to the existing requirements in Sec.  172.560.
     Special Provision A210: PHMSA proposes adding new special 
provision A210 and assigning it to the new italicized HMT entries 
``Catecholborane'' and its synonym ``1, 3, 2-Benzodioxaborole.'' 
Consistent with the ICAO Technical Instructions, this special provision 
clarifies that this substance is forbidden for transport by air and may 
only be transported on cargo aircraft with the approval of the 
Associate Administrator.
     Special Provision A212: PHMSA proposes adding new special 
provision A212 and assigning it to the to the HMT entry ``UN 2031, 
Nitric acid other than red fuming, with more than 20 percent and less 
than 65 percent nitric acid.'' Consistent with the ICAO Technical 
Instructions, this special provision allows sterilization devices 
containing nitric acid conforming to the conditions in the special 
provision to be offered for transportation by passenger aircraft 
irrespective of column (9A) of the Sec.  172.101 HMT listing the 
material as forbidden.
     Special Provision B134: PHMSA proposes adding new special 
provision B134 and assigning it to UN Numbers 1309, 1376, 1483, 1869, 
2793, and 2878. When in Large Packagings offered for transport by 
vessel, flexible or fiber inner packages containing these materials 
would need to be sift-proof and water-resistant, or fitted with a sift-
proof and water-resistant liner. Consistent with the IMDG Code, these 
provisions will increase the ability of these packages to perform their 
containment function and reduce the likelihood of a fire on board cargo 
vessels when used to transport substances that either generate large 
amounts of heat or give off flammable or corrosive toxic gases on 
contact with water or moisture.
     Special Provision B135: PHMSA proposes adding new special 
provision B135 and assigning it to UN Numbers 1932, 2008, 2545, 2546, 
2881, and 3189. When in Large Packagings offered for transport by 
vessel, flexible or fiber inner packages containing these materials 
would need to be hermetically sealed. Consistent with the IMDG Code, 
these provisions will increase the ability of these packages to perform 
their containment function and reduce the likelihood of a fire on board 
cargo vessels when used to transport substances that either generate 
large amounts of heat or give off flammable or corrosive toxic gases on 
contact with water or moisture.
     IP Code 19: PHMSA proposes to add a new IP Code 19 and 
assign it to UN 3531, UN 3532, UN 3553, and UN 3534. Consistent with 
international

[[Page 61761]]

regulations, this special provision would require that IBCs are 
designed and constructed to permit the release of gas or vapor, thereby 
preventing a build-up of pressure that could rupture the IBCs in the 
event of loss of stabilization
     Special Provision N90: Special provision N90 is assigned 
to the HMT entry ``UN 3474, 1-Hydroxybenzotriazole, monohydrate'' and 
prohibits the use of metal packages. PHMSA proposes, consistent with 
the UN Model Regulations, to revise special provision N90 by clarifying 
that the prohibition of metal packages does not include packagings 
constructed of other material with a small amount of metal (e.g., metal 
closures or other metal fittings). However, packagings constructed with 
a small amount of metal must be designed such that the hazardous 
material does not contact the metal.
     Special Provision N92: PHMSA proposes adding special 
provision N92 to the four proposed polymerizing substance, n.o.s. 
entries. This special provision requires packages that are utilized for 
the transportation of polymerizing substances to be designed and 
constructed to permit the release of gas or vapor to prevent a build-up 
of pressure that could rupture the packagings in the event of loss of 
stabilization.
     Special Provision W31: PHMSA proposes adding new special 
provision W31 and assigning it to the 155 HMT entries identified in 
Table 6 in the ``Amendments to column (7) special provisions'' section 
of this rulemaking. With the addition of this special provision, PHMSA 
proposes to require packages assigned as such to be hermetically sealed 
when offered for transportation by vessel.
    The proposed addition of W31 to these commodities harmonizes the 
HMR with changes made in Amendment 38-16 of the IMDG Code, as well as 
the transportation requirements of the HMR with the IMDG Code for other 
commodities where they were not previously harmonized. The IMDG Code 
has had provisions in place equivalent to proposed W31 (PP31) for 
certain commodities since at least 1998.\4\ Other hazardous materials 
regulations (ICAO Technical Instructions, HMR, and UN Model 
Regulations) do not currently contain provisions similar to W31. 
Amendment 38-16 of the IMDG Code is adding this hermetically sealed 
packaging requirement to 15 entries in its Dangerous Goods List (some 
with multiple packing groups).
---------------------------------------------------------------------------

    \4\ These provisions have potentially been in place before 1998. 
PHMSA reviewed hard copy IMDG Codes dating back to 1998 but was 
unable to locate the origin of these provisions.
---------------------------------------------------------------------------

    The proposed amendment would reduce the risk of fire on board cargo 
vessels carrying hazardous materials that can react dangerously with 
the ship's available water and carbon dioxide fire extinguishing 
systems. Some of the hazardous materials for which PHMSA is proposing 
to amend the vessel transportation packaging requirements react with 
water or moisture generating excessive heat or releasing toxic or 
flammable gases. Common causes for water entering into the container 
are: water entering through ventilation or structural flaws in the 
container; water entering into the containers placed on deck or in the 
hold in heavy seas; and water entering into the cargo space upon a ship 
collision or leak. If water has already entered the container, the 
packaging is the only protection from a potential fire.
    In this NPRM, PHMSA proposes to strengthen the ability of these 
packages transporting water-reactive substances. PHMSA anticipates this 
proposed amendment could result in additional costs to domestic-only 
shippers but not to those shippers transporting such goods 
internationally. We assume that all shippers that ship hazardous 
materials internationally will incorporate IMDG Code-compliant 
packaging requirements into their business practices. These proposed 
amendments will increase costs for some domestic shipments of affected 
commodities and will require materials currently transported in 
packaging not already hermetically sealed to be thus packaged. Adoption 
of these provisions will increase the ability of these packages to 
perform their containment function and reduce the likelihood of a fire 
on board cargo vessels when used to transport substances that either 
generate large amounts of heat or give off flammable or toxic gases on 
contact with water or moisture. A 2011 Formal Safety Assessment (FSA) 
report presented to the IMO on shipping water-reactive materials by 
vessel \5\ provides guidance regarding changes to the regulation of 
such shipments, as well as the net benefit of such changes. The FSA 
report notes that analysis of the documented cases of fire at sea 
indicates that the cause of the accidents is often difficult or 
impossible to determine. Although the cargo space is in some cases 
identified as the origin of the fire, the originating container is only 
identifiable in rare instances, and thus, there is no reliable data on 
the involvement of water-reactive materials in these fires. 
Additionally, in most cases, fires that start do not exceed the 
containment of the container itself and extinguish on their own. These 
self-extinguishing fires are usually not detected until the container 
is unloaded at its destination and, thus, are rarely documented in any 
relation to vessel or mode of shipment.\6\
---------------------------------------------------------------------------

    \5\ International Maritime Organization, 2011. ``Stowage of 
Water-Reactive Materials--Report of the Formal Safety Assessment--
Submitted by Germany.'' Report No. SO-ER 2009.267A.
    \6\ Ibid, p. 24.
---------------------------------------------------------------------------

    Regarding the cost of reducing the risk of fire from water-exposure 
of water-reactive materials by requiring water-resistant packaging, the 
FSA report concluded that the costs in relation to the amount of 
affected goods is likely to be high.\7\ However, the FSA expect that 
this measure will affect only a small number of goods, which are 
transported in small amounts, so that the costs in relation to the 
total amount of all transported goods is likely to be low.\8\ PHMSA 
recognizes that both the FSA report and our own Regulatory Impact 
Analysis lack quantitative data on the true cost of this proposal, as 
well as the amount of these hazardous materials currently transported 
by vessel. We are specifically soliciting comment addressing any 
estimates of the cost of compliance with these amendments and any 
quantitative data on the amounts of the commodities affected by this 
proposal that are currently offered for transportation by domestic 
vessel.
---------------------------------------------------------------------------

    \7\ Ibid. p. 78.
    \8\ Ibid, p. 78.
---------------------------------------------------------------------------

     Special Provision W32: PHMSA proposes adding new special 
provision W32 and assigning it to 38 HMT entries identified in Table 6 
in the ``Amendments to column (7) special provisions'' section of this 
rulemaking. With the addition of this special provision, PHMSA proposes 
to require packages assigned this special provision to be hermetically 
sealed, except for solid fused material, when offered for 
transportation by vessel. The 38 entries to which this addition are 
proposed are already required to be packaged in this manner in 
accordance with the IMDG Code through a modified PP31 (when compared to 
the PP31 mentioned in the W31 discussion above) assigned to various 
packing instructions. See the comments in the W31 discussion above for 
more discussion on the reasons for this proposed amendment.
     Special Provision W40: PHMSA proposes adding new special 
provision W40 and assigning it to 38 HMT entries identified in Table 6 
in the ``Amendments to column (7) special provisions'' section of this 
rulemaking.

[[Page 61762]]

With the addition of this special provision, PHMSA proposes to prohibit 
the use of bags when offered for transportation by vessel. See the 
comments in the W31 discussion above for more discussion on the reasons 
for this proposed amendment.
     Special Provision W100: PHMSA proposes adding new special 
provision W100 and assigning it to 27 HMT entries identified in Table 6 
in the ``Amendments to the column (7) special provisions'' section of 
this rulemaking. With the addition of this special provision, PHMSA 
proposes to require flexible, fiberboard, or wooden packagings that are 
assigned this special provision to be sift-proof and water-resistant, 
or to be fitted with a sift-proof and water-resistant liner. These 
proposed amendments are intended to ensure that water-reactive 
materials transported by vessel are in packages that provide an 
appropriate level of protection from the ingress of water. See the 
comments in the W31 discussion above for more discussion on the reasons 
for this proposed amendment.
Section 172.407
    Section 172.407 prescribes specifications for labels. On January 8, 
2015, PHMSA published a final rule [Docket No. PHMSA-2013-0260 (HM-
215M); 80 FR 1075] that required labels to have a solid line forming 
the inner border 5 mm from the outside edge of the label and a minimum 
line width of 2 mm. Transitional exceptions were provided allowing 
labels authorized prior to this rulemaking to be used until December 
31, 2016.
    The rulemaking authorized a reduction in label dimensions and 
features if the size of the packaging so requires. This allowance for 
reduction in label dimensions, consistent with the requirements for 
standard size labels, was contingent on the solid line forming the 
inner border remaining 5 mm from the outside edge of the label and the 
minimum width of the line remaining 2 mm. PHMSA has become aware that 
maintaining these inner border size requirements, while reducing the 
size of other label elements, may potentially result in the symbols on 
the reduced size labels no longer being identifiable. Consequently, we 
are proposing to revise paragraph (c)(i) to remove the existing inner 
border size requirements for reduced dimension labels and authorizing 
the entire label to be reduced proportionally.
    In the same January 8, 2015 final rule, PHMSA authorized the 
continued use of a label in conformance with the requirements of this 
paragraph in effect on December 31, 2014, until December 31, 2016. 
PHMSA has been made aware that the transition period provided may not 
be sufficient to allow the regulated community to implement necessary 
changes to business practices or to deplete inventories of previously 
authorized labels. PHMSA is proposing to extend the transition date 
provided in paragraph (c)(1)(iii) until December 31, 2018 for domestic 
transportation in order to provide additional time for implementation 
and depletion of existing stocks of labels.
Section 172.447
    PHMSA proposes to create a new section containing a new Class 9 
hazard warning label for lithium batteries. The label would consist of 
the existing Class 9 label with the addition of a figure depicting a 
group of batteries with one broken and emitting a flame in the lower 
half. This label would appear on packages containing lithium batteries 
required to display hazard warning labels and is intended to better 
communicate the specific hazards posed by lithium batteries. This 
action is consistent with the most recent editions of the UN Model 
Regulations, the ICAO Technical Instructions, and the IMDG Code. 
Packages of lithium batteries displaying the existing Class 9 label may 
continue to be used until December 31, 2018. We propose this transition 
period to allow shippers to exhaust existing stocks of labels and pre-
printed packagings. We are not proposing any modifications to the 
existing Class 9 placard or the creation of a Class 9 placard 
specifically for cargo transport units transporting lithium batteries. 
PHMSA solicits comment on the appropriateness of this transition 
period.
Section 172.505
    Section 172.505 details the transport situations that require 
subsidiary placarding. Uranium hexafluoride is a volatile solid that 
may present both chemical and radiological hazards. It is one of the 
most highly soluble industrial uranium compounds and, when airborne, 
hydrolyzes rapidly on contact with water to form hydrofluoric acid (HF) 
and uranyl fluoride (UO2F2).\9\
---------------------------------------------------------------------------

    \9\ https://www.epa.gov/sites/production/files/2014-11/documents/tsd58.pdf.
---------------------------------------------------------------------------

    As previously discussed in the review of changes to Sec.  172.102, 
the UN Sub-Committee determined it necessary that a 6.1 subsidiary 
hazard be added to the Dangerous Goods List of uranium hexafluoride 
entries. Currently, in addition to the radioactive placard which may be 
required by Sec.  172.504(e), each transport vehicle, portable tank, or 
freight container that contains 454 kg (1,001 pounds) or more gross 
weight of non-fissile, fissile-excepted, or fissile uranium 
hexafluoride must be placarded with a corrosive placard on each side 
and each end. PHMSA proposes to add a requirement for these shipments 
currently requiring corrosive subsidiary placards to also placard with 
6.1 poison or toxic placards. PHMSA believes the addition of this 
requirement will provide important hazard communication information in 
the event of a release of uranium hexafluoride.

Part 173

Section 173.4a
    Section 173.4a prescribes transportation requirements for excepted 
packages. In this NPRM, consistent with changes to the UN Model 
Regulations, PHMSA proposes to amend paragraph (e)(3) to allow required 
absorbent materials to be placed in either the intermediate or outer 
packaging. PHMSA believes this change will provide shippers of excepted 
packages with increased flexibility in choosing packaging 
configurations, while maintaining the current level of safety for the 
transportation of these small amounts of hazardous materials.
Section 173.9
    Section 173.9 prescribes requirements for the fumigant marking. In 
this NRPM, PHMSA proposes to amend Sec.  173.9 to require that the 
fumigant marking and its required information are capable of 
withstanding a 30-day exposure to open weather conditions. This 
requirement is consistent with the survivability requirements for 
placards found in Sec.  172.519. Amendment 38-16 of the IMDG Code was 
amended to require the fumigant marking to be capable of surviving 
three months immersion in the sea, which is consistent with IMDG Code 
requirements for placard survivability. PHMSA believes ensuring that 
the fumigant marking and its required information are robust enough to 
handle conditions normally incident to transportation will ensure the 
proper information is conveyed to those needing it. Therefore, we are 
proposing amendments to this section consistent with the survivability 
requirements for placards.
Section 173.21
    Section 173.21 describes situations in which the offering for 
transport or transportation of materials or packages is forbidden. 
Examples include materials designated as ``Forbidden'' in column (3) of 
the HMT; electrical

[[Page 61763]]

devices that are likely to generate sparks and/or a dangerous amount of 
heat; and materials that are likely to decompose or polymerize and 
generate dangerous quantities of heat or gas during decomposition or 
polymerization. In Sec.  173.21, PHMSA proposes to lower the 
temperature threshold at which a polymerizing substance is forbidden 
for transport, unless the material is stabilized or inhibited, from 54 
[deg]C (130[emsp14][deg]F) to 50 [deg]C (122[emsp14][deg]F) and to 
amend the table in paragraph (f)(1) to accommodate the specific 
temperature controls applicable to polymerizing substances. This 50 
[deg]C (122[emsp14][deg]F) temperature is consistent with existing 
requirements for Division 4.1 (Self-reactive) and Division 5.2 (Organic 
peroxide) hazardous materials, as well as the 19th Revised Edition of 
UN Model Regulations for the transport of polymerizing substances in 
packages and IBCs, which requires temperature control in transport if 
the SAPT is 45 [deg]C (113[emsp14][deg]F) only for polymerizing 
substances offered for transport in portable tanks. We are not 
proposing to adopt a different temperature threshold before temperature 
control is required for portable tanks transporting polymerizing 
substances. At this time, we believe there is not sufficient data to 
support a different threshold for polymerizing substances in portable 
tanks. Further, we believe maintaining a single SADT/SAPT for 
temperature controls for all relevant materials (i.e., self-reactives, 
organic peroxides, and polymerizing substances) and all packaging sizes 
(i.e., non-bulk, IBC, and bulk) is less confusing for the user.
Section 173.40
    Section 173.40 provides general packaging requirements for toxic 
materials packaged in cylinders. In this NPRM, PHMSA proposes to revise 
paragraph (a)(1) to clarify that TC, CTC, CRC, and BTC cylinders 
authorized in Sec.  171.12, except for acetylene cylinders, may be used 
for toxic materials.
Section 173.50
    Section 173.50 provides definitions for the various divisions of 
Class 1 (Explosive) materials referenced in part 173 subpart C. 
Paragraph (b) of this section notes that Class 1 (Explosive) materials 
are divided into six divisions and that the current definition of 
Division 1.6 states that ``this division comprises articles which 
contain only extremely insensitive substances.'' PHMSA proposes to 
amend the definition of Division 1.6 to note that the division is made 
up of articles that predominately contain extremely insensitive 
substances. Consistent with the recent changes to the UN Model 
Regulations, the new definition means that an article does not need to 
contain solely extremely insensitive substances to be classified as a 
Division 1.6 material.
Section 173.52
    Section 173.52 contains descriptions of classification codes for 
explosives assigned by the Associate Administrator. These compatibility 
codes consist of the division number followed by the compatibility 
group letter. Consistent with changes proposed to Sec.  173.50 and 
those made in the UN Model Regulations, PHMSA proposes to amend the 
descriptive text for the 1.6N classification code entry in the existing 
table in this section to indicate that these explosives are articles 
predominantly containing extremely insensitive substances.
Section 173.62
    Section 173.62 provides specific packaging requirements for 
explosives. Consistent with the UN Model Regulations, PHMSA proposes to 
revise Sec.  173.62 relating to specific packaging requirements for 
explosives.
    In paragraph (b), in the Explosives Table, the entry for ``UN 0510, 
Rocket motors'' would be added and assigned Packing Instruction 130 
consistent with other rocket motor entries.
    In paragraph (c), in the Table of Packing Methods, Packing 
Instruction 112(c) would be revised by adding a particular packaging 
requirement applicable to UN 0504 requiring that metal packagings must 
not be used. It would also be clarified that the prohibition of metal 
packagings does not include packagings constructed of other material 
with a small amount of metal (e.g., metal closures or other metal 
fittings). Packing Instruction 114(b) would be revised to clarify in 
the particular packaging requirement applicable to UN 0508 and UN 0509 
that the prohibition of metal packagings does not include packagings 
constructed of other material with a small amount of metal (i.e., metal 
closures or other metal fittings). Packing Instruction 130 would be 
revised by adding UN 0510 to the list of large and robust explosives 
articles that may be transported unpackaged. PHMSA proposes to add UN 
0502 to Packing Instruction P130. This addition corrects an existing 
error in the HMR. Packing Instruction 130 is referenced for UN 0502, 
but there is no mention of UN 0502 in the actual instruction. Packing 
Instruction 137 would be revised by amending the particular packaging 
instruction applicable to UN Numbers 0059, 0439, 0440, and 0441 by 
replacing the marking requirement ``THIS SIDE UP'' with a reference to 
the package orientation marking prescribed in Sec.  172.312(b).
Section 173.121
    Section 173.121 provides criteria for the assignment of packing 
groups to Class 3 materials. Paragraph (b)(iv) provides criteria for 
viscous flammable liquids of Class 3, such as paints, enamels, lacquers 
and varnishes, to be placed in packing group III on the basis of their 
viscosity, coupled with other criteria. In this NPRM, and consistent 
with the changes to the UN Model regulations, PHMSA proposes to amend 
paragraph (b)(iv) to include additional viscosity criteria that can be 
used as an alternative where a flow cup test is unsuitable. Many 
products of the paint and printing ink industry are thixotropic in 
nature, which means that they are viscous at rest but become thinner on 
application of shear or agitation (such as stirring or brushing). 
During transport these viscous flammable liquids have the potential to 
thin under movement, but their viscosity cannot be properly 
characterized using a flow cup test since they will not run through the 
cup under static conditions. Additionally, PHMSA proposes to include an 
explanatory footnote to the existing table of viscosity and flash point 
to assist users of the section in determining kinematic viscosity.
Section 173.124
    Section 173.124 outlines defining criteria for Divisions 4.1 
(Flammable solid), 4.2 (Spontaneously combustible), and 4.3 (Dangerous 
when wet material). Division 4.1 (Flammable solid) includes 
desensitized explosives, self-reactive materials, and readily 
combustible solids. The UN Model Regulations adopted amendments to 
include polymerizing materials to the list of materials that meet the 
definition of Division 4.1. Transport conditions for polymerizing 
materials are not new under the HMR. Section Sec.  173.21 presently 
contains approval provisions for the transport of polymerizing 
materials. Unlike the present HMR requirements, the classification 
requirements adopted in the UN Model Regulations do not require testing 
to determine the rate of vapor production when heated under 
confinement. This rate should be the deciding factor when determining 
whether a polymerizing substance should be authorized for 
transportation in an IBC or portable tank. PHMSA proposes to add 
polymerizing materials to the list of materials that meet the 
definition of

[[Page 61764]]

Division 4.1 with the additional requirement that that polymerizing 
substances are only authorized for transport if they pass the UN Test 
Series E at the ``None'' or ``Low'' level when tested for heating under 
confinement, or other equivalent test method. Given concerns with 
potential test equipment issues (i.e., clogging) when subjecting 
polymerizing materials to the UN Test Series E, PHMSA solicits comment 
on other equivalent test methods.
    Specifically, we propose to add a new paragraph, (a)(4), that 
defines polymerizing materials generally and specifies defining 
criteria. Polymerizing materials are materials that are liable to 
undergo an exothermic reaction resulting in the formation of polymers 
under conditions normally encountered in transport. Additionally, 
polymerizing materials in Division 4.1 have a self-accelerating 
polymerization temperature of 75 [deg]C (167[emsp14][deg]F) or less; 
have an appropriate packaging determined by successfully passing the UN 
Test Series E at the ``None'' or ``Low'' level or by an equivalent test 
method; exhibit a heat of reaction of more than 300 J/g; and do not 
meet the definition of any other hazard class.
Section 173.165
    Section 173.165 prescribes the transport and packaging requirements 
for polyester resin kits. PHMSA proposes to revise Sec.  173.165 by 
adding the requirements for polyester resin kits with a flammable solid 
base consistent with the new HMT entry ``UN 3527, Polyester resin kit, 
solid base material, 4.1.''
Section 173.185
    Section 173.185 prescribes transportation requirements for lithium 
batteries. Paragraph (c) describes alternative packaging and 
alternative hazard communication for shipments of up to 8 small lithium 
cells or 2 small batteries per package (up to 1 gram per lithium metal 
cell, 2 grams per lithium metal battery, 20 Wh per lithium ion cell, 
and 100 Wh per lithium ion battery). Specifically, PHMSA proposes to 
amend paragraph (c) to require strong outer packagings for small 
lithium cells or batteries to be rigid and to replace the current text 
markings that communicate the presence of lithium batteries and the 
flammability hazard that exists if damaged with a single lithium 
battery mark. Additionally, the package must be of adequate size that 
the lithium battery mark can be displayed on one side of the package 
without folding. PHMSA also proposes to require the lithium battery 
mark to appear on packages containing lithium cells or batteries, or 
lithium cells or batteries packed with, or contained in, equipment when 
there are more than two packages in the consignment. This requirement 
would not apply to a package containing button cell batteries installed 
in equipment (including circuit boards) or when no more than four 
lithium cells or two lithium batteries are installed in the equipment. 
We are further clarifying what is meant by the term ``consignment'' by 
defining the term used in Sec.  173.185 as one or more packages of 
hazardous materials accepted by an operator from one shipper at one 
time and at one address, receipted for in one lot and moving to one 
consignee at one destination address.
    Under current HMR requirements, a package of cells or batteries 
that meets the requirements of Sec.  173.185(c) may be packed in strong 
outer packagings that meet the general requirements of Sec. Sec.  
173.24 and 173.24a instead of the standard UN performance packaging. 
Lithium batteries packed in accordance with Sec.  173.185(c) must be 
packed in strong outer packagings that meet the general packaging 
requirements of Sec. Sec.  173.24 and 173.24a and be capable of 
withstanding a 1.2 meter (3.9 ft) drop test without damage to the cells 
or batteries contained in the package, shifting of the contents that 
would allow battery to battery or cell to cell contact, or release of 
contents. Alternative hazard communication requirements also apply. The 
Class 9 label is replaced with text indicating the presence of lithium 
batteries; an indication that the package must be handled with care and 
that a flammability hazard exists if damaged; procedures to take in the 
event of damage; and a telephone number for additional information. 
Instead of a shipping paper, the shipper can provide the carrier with 
an alternative document that includes the same information as provided 
on the package.
    In this NPRM, PHMSA proposes to replace the existing text marking 
requirements in Sec.  173.185(c)(3) with a standard lithium battery 
mark for use in all transport modes and to remove the requirement in 
Sec.  173.185(c)(3) for shippers to provide an alternative document. 
The lithium battery mark communicates key information (i.e., the 
package contents and that a flammability hazard exists if damaged). The 
mark utilizes recognizable symbols that permit transport workers and 
emergency responders to quickly ascertain the package contents and take 
appropriate action. A single mark that is understood and accepted for 
all transport modes will increase the effectiveness. PHMSA proposes a 
transition period of December 31, 2018, to provide adequate time for 
shippers to transition the new lithium battery mark and exhaust 
existing stocks of preprinted packagings or markings. The current 
documentation requirement is redundant given the existing marking 
requirement and provides minimal additional safety value to that 
provided by the mark.
    At the 49th session of UN Sub-Committee, a late design revision to 
the lithium battery mark was adopted to authorize the mark on a 
background of ``suitable contrasting color'' in addition to white. This 
is consistent with design requirements for limited quantity marks and 
other marks in the Model Regulations. We are proposing to also allow 
the mark on a background of suitable contrasting color in addition to 
white.
    Additionally, PHMSA proposes to amend Sec.  173.185(c)(2) to 
specify that outer packagings used to contain small lithium batteries 
must be rigid and of adequate size so the handling mark can be affixed 
on one side without the mark being folded. The HMR currently do not 
prescribe minimum package dimensions or specific requirements for 
package performance other than the requirements described in Sec. Sec.  
173.24 and 173.24a. We are aware of several instances in which either 
the package dimensions were not adequate to accommodate the required 
marks and labels or the package was not sufficiently strong to 
withstand the rigors of transport. These proposals will enhance the 
communication and recognition of lithium batteries and better ensure 
that packaging is strong enough to withstand normal transport 
conditions.
    PHMSA proposes amendments to Sec.  173.185(e) to permit the 
transport of prototype and low production runs of lithium batteries 
contained in equipment. These proposals are mostly consistent with 
amendments adopted into the 19th Revised Edition of the UN Model 
Regulations and Amendment 38-16 to the IMDG Code, which authorize the 
transportation of prototype and low production runs of lithium 
batteries contained in equipment in packaging tested to the PG II 
level. The ICAO TI authorizes the transportation of prototype and low 
production runs of lithium batteries contained in equipment in 
packaging tested to the PG I level. PHMSA proposes to continue to 
require prototype and low production batteries to be placed in 
packaging tested to the PG I performance level. PHMSA believes that the 
higher integrity packaging provides an

[[Page 61765]]

additional layer of protection for cells and batteries not otherwise 
subjected to the UN design tests.
    Consistent with changes to the UN Model Regulations, the IMDG Code, 
and the ICAO Technical Instructions, PHMSA proposes to add new 
paragraph (e)(7) to require shipments of low production runs and 
prototype lithium batteries to note conformance with the requirements 
of Sec.  173.185(e) on shipping papers.
    Additionally, PHMSA proposes amendments to Sec.  173.185(f)(4) to 
harmonize with a requirement in the 19th Revised Edition of the UN 
Model Regulations that the ``Damaged/defective lithium ion battery'' 
and/or ``Damaged/defective lithium metal battery'' marking as 
appropriate be in characters at least 12 mm (.47 inch) high.
Section 173.217
    Section 173.217 establishes packaging requirements for dry ice 
(carbon dioxide, solid). Paragraph (c) prescribes additional packaging 
requirements for air transport. Consistent with the ICAO Technical 
Instructions, in this NPRM, PHMSA proposes to remove the term ``other 
type of pallet'' in paragraph (c)(3) that excepts dry ice being used as 
a refrigerant for other non-hazardous materials from the quantity 
limits per package shown in columns (9A) and (9B) of the Sec.  172.101 
HMT.
    A working paper submitted to the October 2014 ICAO Dangerous Goods 
Panel meeting noted that the term ``other type of pallet'' was used in 
conjunction in various parts of the ICAO Technical Instructions with 
the terms ``package,'' ``overpack,'' or ``unit load device,'' which 
were all defined in the ICAO Technical Instructions. The ICAO Technical 
Instructions do not have a specific definition for ``other type of 
pallet,'' as the term is understood to represent devices that are 
widely used in transport, such as wooden skids or pallets that allow 
the use of a forklift for ease of moving packages around and to prevent 
damage to the contents of the skid or pallet. The definition for 
``overpack'' already addresses the intent of the term ``other type of 
pallet,'' so it was agreed that the term ``other type of pallet'' was 
redundant and that references to it would be removed.
Section 173.220
    Section 173.220 prescribes transportation requirements and 
exceptions for internal combustion engines, vehicles, machinery 
containing internal combustion engines, battery-powered equipment or 
machinery, and fuel cell-powered equipment or machinery. The UN Model 
Regulations adopted amendments to the existing UN 3166 engine and 
vehicle entries during the last biennium. These changes are 
continuations of efforts undertaken by the UN Sub-Committee to ensure 
appropriate hazard communication is provided for engines containing 
large quantities of fuels.
    The 17th Edition of the UN Model Regulations added special 
provision 363, which required varying levels of hazard communication 
depending on the type and quantity of fuel present, in attempts to 
ensure the hazards associated with engines containing large quantities 
of fuel were sufficiently communicated. PHMSA did not adopt the 
provisions found in special provision 363 at the time they were 
introduced.
    As previously discussed in the review of the new proposed HMT 
entries, the existing UN 3166 identification number was maintained for 
the various vehicle entries in the Model Regulations, and three new UN 
identification numbers and proper shipping names were created for 
engines or machinery internal combustion and were assigned a hazard 
classification based on the type of fuel used. The three new UN numbers 
and proper shipping names are as follows: A Class 3 entry ``UN 3528, 
Engine, internal combustion engine, flammable liquid powered, or Engine 
fuel cell, flammable liquid powered, or Machinery, internal combustion, 
flammable liquid powered, or Machinery, fuel cell, flammable liquid 
powered''; a Division 2.1 entry ``UN 3529, Engine, internal combustion 
engine, flammable gas powered, or Engine fuel cell, flammable gas 
powered, or Machinery, internal combustion, flammable gas powered, or 
Machinery, fuel cell, flammable gas powered''; and a Class 9 entry ``UN 
3530, Engine, internal combustion, or Machinery, internal combustion.''
    Consistent with the UN Model Regulations, PHMSA proposes to add to 
the HMR the new UN identification numbers and proper shipping names for 
engines and machinery. PHMSA proposes to maintain the existing 
transportation requirements and exceptions for engines and machinery 
found in Sec.  173.220 for all modes of transportation other than 
vessel. To harmonize as closely as possible with Amendment 38-16 of the 
IMDG Code, PHMSA proposes the following amendments to Sec.  173.220: 
Amending paragraph (b)(1) to include a reference to engines powered by 
fuels that are marine pollutants but do not meet the criteria of any 
other Class or Division; amending paragraph (b)(4)(ii) to include a 
reference to the proposed new Sec.  176.906 containing requirements for 
shipments of engines or machinery offered for transportation by vessel; 
amending paragraph (d) to authorize the transportation of securely 
installed prototype or low production run lithium batteries in engines 
and machinery by modes of transportation other than air; and adding 
paragraph (h)(3) to include references to existing and proposed 
exceptions for vehicles, engines, and machinery in Sec. Sec.  176.905 
and 176.906.
    ICAO adopted a provision that requires battery powered vehicles 
that could be handled in other than an upright position to be placed 
into a strong rigid outer package. ICAO adopted this provision to 
ensure that small vehicles, particularly those powered by lithium 
batteries are adequately protected from damage during transport. PHMSA 
proposes to amend paragraphs (c) and (d) consistent with this 
requirement. While this international requirement is specific to air 
transport, we believe there is benefit to applying this requirement for 
transportation by all transport modes.
Section 173.221
    Section 173.221 prescribes the packaging requirements for Polymeric 
beads (or granules), expandable, evolving flammable vapor. PHMSA 
proposes to add a procedure for declassification of polymeric beads, 
expandable. This exception is proposed to differentiate between 
polymeric beads made of materials that may present a risk for formation 
of a flammable atmosphere in a package and those that do not. When it 
can be demonstrated that no flammable vapor, resulting in a flammable 
atmosphere, is evolved by utilizing test U1--the test method for 
substances liable to evolve flammable vapors--of part III, sub-section 
38.4.4 of the UN Manual of Tests and Criteria, polymeric beads, 
expandable need not be classed as Class 9 (UN 2211).
Section 173.225
    Section 173.225 prescribes packaging requirements and other 
provisions for organic peroxides. Consistent with the UN Model 
Regulations, PHMSA proposes to revise the Organic Peroxide Table in 
paragraph (c) by amending the entries for: ``Dibenzoyl peroxide,'' 
``tert-Butyl cumyl peroxide,'' ``Dicetyl peroxydicarbonate,'' and 
``tert-Butyl peroxy-3,5,5-trimethylhexanoate.'' We propose to revise 
the Organic Peroxide IBC Table in paragraph (e) to maintain alignment 
with the UN Model Regulations by adding new entries for ``tert-Butyl 
cumyl peroxide'' and

[[Page 61766]]

``1,1,3,3-Tetramethylbutyl peroxy-2-ethylhexanoate, not more than 67%, 
in diluent type A'' and adding a type 31HA1 IBC authorization to the 
existing entry for ``Di-(2-ethylhexyl) peroxydicarbonate, not more than 
62%, stable dispersion, in water.'' We are republishing the complete 
Organic Peroxide and Organic Peroxide IBC tables to ensure the proposed 
revisions are correctly inserted and adding the missing ``UN'' code to 
several identification numbers assigned to existing entries in the 
Organic Peroxide Table.
Section 173.301b
    Section 173.301b contains additional general requirements for 
shipment of UN pressure receptacles. PHMSA proposes to amend paragraph 
(a)(2) to include the most recent ISO standard for UN pressure 
receptacles and valve materials for non-metallic materials in ISO 
11114-2:2013. Additionally, we propose to amend paragraph (c)(1) to 
include the most recent ISO standard on cylinder valves ISO 10297:2014. 
This paragraph also contains end dates for when the manufacture of 
cylinders and service equipment is no longer authorized in accordance 
with the outdated ISO standard. Finally, we propose to amend Sec.  
173.301b(g) to amend a reference to marking requirements for composite 
cylinders used for underwater applications. The current reference to 
the ``UW'' marking in Sec.  173.301b(g) direct readers to Sec.  
178.71(o)(17). The correct reference for the ``UW marking is Sec.  
178.71(q)(18). We propose to make this editorial change in this NPRM.
Section 173.303
    Section 173.303 prescribes requirements for charging of cylinders 
with compressed gas in solution (acetylene). PHMSA proposes to amend 
paragraph (f)(1) to require UN cylinders for acetylene use to comply 
with the current ISO standard ISO 3807:2013. This paragraph also 
contains end dates for when the manufacture of cylinders and service 
equipment is no longer authorized in accordance with the outdated ISO 
standard.
Section 173.304b
    Section 173.304b prescribes filling requirements for liquefied 
gases in UN pressure receptacles. The UN Model Regulations amended 
packing instruction P200 by adding requirements for liquefied gases 
charged with compressed gases. In this NPRM, PHMSA proposes to amend 
Sec.  173.304b specifically by adding a new paragraph (b)(5) to include 
filling limits when a UN cylinder filled with a liquefied gas is 
charged with a compressed gas. We are not proposing similar filling 
limits for DOT specification cylinders filled with a liquefied gas and 
charged with a compressed gas, as we feel the situation is adequately 
addressed by the requirements found in Sec.  173.301(a)(8).
Section 173.310
    Section 173.310 provides the transport conditions for certain 
specially designed radiation detectors containing a Division 2.2 (Non-
flammable) gas. The 19th Revised Edition of the UN Model Regulations 
added a new special provision 378 applicable to radiation detectors 
containing certain Division 2.2 gases. Special provision 378 outlines 
conditions for the use of a non-specification pressure receptacle and 
strong outer packaging requirements. As Sec.  173.310 currently 
prescribes similar transport conditions for radiation detectors 
containing Division 2.2 gases, we are not proposing to add a new 
special provision.
    Consistent with special provision 378 of the UN Model Regulations, 
PHMSA proposes the following revisions to the transport conditions in 
Sec.  173.310: [1] In the section header, clarify that Division 2.2 
gases must be in non-refillable cylinders; [2] in (b), increase the 
maximum design pressure from 4.83 MPa (700 psig) to 5.00 MPa (725 psig) 
and increase the capacity from 355 fluid ounces (641 cubic inches) to 
405 fluid ounces (731 cubic inches); [3] in new paragraph (d), require 
specific emergency response information to accompany each shipment and 
be available from the associated emergency response telephone number; 
[4] in new paragraph (e), require that transport in accordance with 
this section be noted on the shipping paper; and [5] in new paragraph 
(f), except radiation detectors, including detectors in radiation 
detection systems, containing less than 1.69 fluid ounces (50 ml) 
capacity, from the requirements of the subchapter if they conform to 
(a) through (d) of this section.
Section 173.335
    Section 173.335 contains requirements for cylinders filled with 
chemicals under pressure. The 19th Revised Edition of the UN 
Recommendations includes new instructions in P200 and P206 on how to 
calculate the filling ratio and test pressure when a liquid phase of a 
fluid is charged with a compressed gas. PHMSA proposes to revise the 
requirements of Sec.  173.335 for chemical under pressure n.o.s. to 
include a reference to Sec.  173.304b, which specifies additional 
requirements for liquefied compressed gases in UN pressure receptacles. 
In another proposed amendment in this NPRM, PHMSA proposes to amend 
Sec.  173.304b specifically by adding a new paragraph (b)(5) to include 
these filling and test pressure requirements consistent with the UN 
Recommendations.
Part 175
Section 175.10
    Section 175.10 specifies the conditions for which passengers, crew 
members, or an operator may carry hazardous materials aboard an 
aircraft. Paragraph (a)(7) permits the carriage of medical or clinical 
mercury thermometers, when carried in a protective case in carry-on or 
checked baggage. Consistent with revisions to the ICAO Technical 
Instructions, in this NPRM, PHMSA proposes to revise paragraph (a)(7) 
by limiting thermometers containing mercury to checked baggage only. 
This revision was based on a proposal submitted to the ICAO DGP/25 
meeting that highlighted two incidents involving leakage of mercury 
from thermometers carried in the cabin and addressed the cost and 
difficult process of cleaning a spill. The proposal noted that digital 
thermometers had become widely available, and as such, there was no 
longer a need to allow mercury thermometers in the cabin or cockpit. 
The Panel discussed whether mercury thermometers should also be banned 
from checked baggage but agreed to retain the provision for checked 
baggage on the basis that there were parts of the world where their use 
was more prevalent.
Section 175.25
    Section 175.25 prescribes the notification that operators must 
provide to passengers regarding restrictions on the types of hazardous 
material they may or may not carry aboard an aircraft on their person 
or in checked or carry-on baggage. Passenger notification of hazardous 
materials restrictions addresses the potential risks that passengers 
can introduce on board aircraft. PHMSA's predecessor, the Materials 
Transportation Bureau, introduced passenger notification requirements 
in 1980 [Docket No. HM-166B; 45 FR 13087]. Although this section had 
been previously amended to account for ticket purchase or check-in via 
the Internet, new technological innovations have continued to outpace 
these provisions. Notwithstanding the

[[Page 61767]]

several rounds of revisions, the rule remains unduly prescriptive.
    The 2017-2018 ICAO Technical Instructions has removed prescriptive 
requirements concerning how the information concerning dangerous goods 
that passengers are forbidden to transport are required to be conveyed 
to passengers by removing references to ``prominently displayed'' and 
``in sufficient numbers.'' Additional ICAO Technical Instructions 
changes include removal of prescriptive requirements that the 
information be in ``text or pictorial form'' when checking in remotely, 
or ``pictorial form'' when not checking in remotely. ICAO's decision to 
move to a performance-based requirement will account for changes in 
technology as well as the unique characteristics of some air carrier 
operations. ICAO noted that these provisions lagged behind the latest 
technology and could sometimes hinder the effectiveness and efficiency 
of notifying passengers about hazardous materials. To account for the 
utilization of different technologies as well as air carrier specific 
differences in operating or business practices, ICAO adopted changes 
that require air carriers to describe their procedures for informing 
passengers about dangerous goods in their operations manual and/or 
other appropriate manuals.
    PHMSA agrees with this approach and proposes to harmonize with the 
amendments made to the ICAO Technical Instructions part 7; 5.1. 
Harmonization is appropriate not only to account for evolving 
technologies or air carrier specific conditions, but also because we 
believe that this amendment will result in a more effective 
notification to passengers.
    Under the proposed revisions to Sec.  175.25, in accordance with 14 
CFR parts 121 and 135, air carriers operating under 14 CFR parts 121 or 
135 will need to describe in an operations manual and/or other 
appropriate manuals in accordance with the applicable provisions of 14 
CFR. The manual(s) will be required to provide procedures and 
information necessary to allow personnel to implement and maintain 
their air carrier's specific passenger notification system. Aside from 
the manual provisions, all persons engaging in for hire air 
transportation of passengers will continue to be subject to Sec.  
175.25.
Section 175.33
    Section 175.33 establishes requirements for shipping papers and for 
the notification of the pilot-in-command when hazardous materials are 
transported by aircraft. The pilot notification requirements of part 
7;4.1.1.1 of the ICAO Technical Instructions include an exception for 
consumer commodities (ID8000) to allow for the average gross mass of 
the packages to be shown instead of the actual gross mass of each 
individual package. This exception is limited to consumer commodities 
offered to the operator by the shipper in a unit load device (ULD). 
Consistent with the ICAO Technical Instructions packing instruction 
applicable to consumer commodities (PI Y963), which permits the shipper 
to show on the shipping paper either the actual gross mass of each 
package or the average gross mass of all packages in the consignment, 
the notification to the pilot-in-command requirement for consumer 
commodities was revised to remove the exception applicability to ULDs 
only. This exception did not previously exist under the HMR. In this 
NPRM, PHMSA proposes to revise Sec.  175.33(a)(3) by adding the text 
``For consumer commodities, the information provided may be either the 
gross mass of each package or the average gross mass of the packages as 
shown on the shipping paper.'' This revision would align the consumer 
commodity notification of the pilot-in-command requirements in the HMR 
with the ICAO Technical Instructions.
Section 175.900
    Section 175.900 prescribes the handling requirements for air 
carriers that transport dry ice. Consistent with the ICAO Technical 
Instructions, PHMSA proposes to remove the term ``other type of 
pallet'' with regard to packages containing dry ice prepared by a 
single shipper. See ``Section 173.217'' of this rulemaking for a 
detailed discussion of the proposed revision.

Part 176

Section 176.83
    Section 176.83 prescribes segregation requirements applicable to 
all cargo spaces on all types of vessels and to all cargo transport 
units. Paragraph (a)(4)(ii) has several groups of hazardous materials 
of different classes, which comprise a group of substances that do not 
react dangerously with each other and that are excepted from the 
segregation requirements of Sec.  176.83. Consistent with changes made 
in Amendment 38-16 of the IMDG Code, PHMSA proposes to add a new group 
of hazardous materials that do not react dangerously with each other to 
this paragraph. The following materials are proposed for new paragraph 
(a)(4)(ii)(C); ``UN 3391, Organometallic substance, solid, 
pyrophoric''; ``UN 3392, Organometallic substance, liquid, 
pyrophoric''; ``UN 3393, Organometallic substance, solid, pyrophoric, 
water-reactive''; ``UN 3394, Organometallic substance, liquid, 
pyrophoric, water-reactive''; ``UN 3395, Organometallic substance, 
solid, water-reactive''; ``UN 3396, Organometallic substance, solid, 
water-reactive, flammable''; ``UN 3397, Organometallic substance, 
solid, water-reactive, self-heating''; ``UN 3398, Organometallic 
substance, liquid, water-reactive''; ``UN 3399, Organometallic 
substance, liquid, water-reactive, flammable''; and ``UN 3400, 
Organometallic substance, solid, self-heating.''
Section 176.84
    Section 176.84 prescribes the meanings and requirements for 
numbered or alpha-numeric stowage provisions for vessel shipments 
listed in column (10B) of the Sec.  172.101 HMT. The provisions in 
Sec.  176.84 are broken down into general stowage provisions, which are 
defined in the ``table of provisions'' in paragraph (b), and the 
stowage provisions applicable to vessel shipments of Class 1 
explosives, which are defined in the table to paragraph (c)(2). PHMSA 
proposes to create a new stowage provision 149 and assign it to the new 
UN 3528 engines or machinery powered by internal combustion engine 
flammable liquid entry. This new stowage provision will require engines 
or machinery containing fuels with a flash point equal or greater than 
23 [deg]C (73.4 [deg]F) to be stowed in accordance with the stowage 
requirements of stowage Category A. Engines and machinery containing 
fuels with a flash point less than 23 [deg]C (73.4 [deg]F) are required 
to comply with the requirements of stowage Category E.
    Additionally, consistent with Amendment 38-16 of the IMDG Code, 
PHMSA proposes to create a new stowage provision 150 to replace 
existing stowage provision 129 for ``UN 3323, Radioactive material, low 
specific activity (LSA-III) non fissile or fissile excepted.'' This 
proposed new stowage provision requires that any material that is 
classified as UN 3323, which is either uranium metal pyrophoric or 
thorium metal pyrophoric, be stowed in accordance with stowage Category 
D requirements.
Section 176.905
    Section 176.905 prescribes transportation requirements and 
exceptions for vessel transportation of motor vehicles and mechanical 
equipment. PHMSA proposes to revise Sec.  176.905 to update the 
transport

[[Page 61768]]

requirements and exceptions for vehicles transported by vessel. These 
changes are necessary to remove references to machinery (see proposed 
Sec.  176.906) and to maintain consistency with changes made in 
Amendment 38-16 of the IMDG Code.
    The following changes are proposed to the transport requirements 
for vehicles transported by vessel: [1] In paragraph (a)(2) for 
flammable liquid powered vehicles, the requirement that flammable 
liquid must not exceed 250 L (66 gal) unless otherwise approved by the 
Associate Administrator; [2] in paragraph (a)(4), the authorization to 
transport vehicles containing prototype or low production run batteries 
securely installed in vehicles; [3] also in paragraph (a)(4), the 
requirement that damaged or defective lithium batteries must be removed 
and transported in accordance with Sec.  173.185(f); and [4] in 
paragraph (i)(1)(i), the inclusion of text to ensure lithium batteries 
in vehicles stowed in a hold or compartment designated by the 
administration of the country in which the vessel is registered as 
specially designed and approved for vehicles have lithium batteries 
that have successfully passed the tests found in the UN Manual of Tests 
and Criteria (except for prototypes and low production runs).
Section 176.906
    Consistent with changes made in Amendment 38-16 of the IMDG Code, 
PHMSA proposes the creation of a new section Sec.  176.906 to prescribe 
transportation requirements for engines and machinery. Requirements 
found in paragraphs (a)-(h) are identical to existing requirements for 
engines and machinery contained in Sec.  176.905, and their 
reproduction in this section is made necessary by the splitting of the 
provisions for engines/machinery and vehicles. Paragraph (i) contains 
exceptions that are divided into two separate categories: [1] Engines 
and machinery meeting one of the conditions provided in (i)(1), which 
are not subject to the requirements of subchapter C of the HMR; and [2] 
engines and machinery not meeting the conditions provided in (i)(1), 
which are subject to the requirements found in (i)(2) that prescribe 
general conditions for transport and varying degrees of hazard 
communication required for engines and machinery based on the actual 
fuel contents and capacity of the engine or machinery.
    A summary of the proposed hazard communication requirements for 
vessel transportation of engines and machinery that are not empty of 
fuel based on fuel content and capacity are provided in Tables 8 and 9. 
The additional hazard communication requirements column indicates 
requirements that would differ from existing hazard communication 
requirements for engines or machinery.

      Table 8--Liquid Fuels Class 3 (UN 3528) and Class 9 (UN 3530)
------------------------------------------------------------------------
                                                       Additional hazard
            Contents                   Capacity          communication
                                                         requirements
------------------------------------------------------------------------
<=60 L..........................  Unlimited.........  Transport
                                                       Document.
>60 L...........................  Not more than 450   Label, Transport
                                   L.                  Document.
>60 L...........................  More than 450 L     Labeled on two
                                   but not more than   opposing sides,
                                   3000 L.             Transport
                                                       Document.
>60 L...........................  More than 3000 L..  Placarded on two
                                                       opposing sides,
                                                       Transport
                                                       Document.
------------------------------------------------------------------------


              Table 9--Gaseous Fuels Division 2.1 (UN 3529)
------------------------------------------------------------------------
                                         Additional hazard communication
             Water capacity                        requirements
------------------------------------------------------------------------
Not more than 450 L....................  Label, Transport Document.
More than 450 L but not more than 1000   Labeled on two opposing sides,
 L.                                       Transport Document.
More than 1000 L.......................  Placarded on two opposing
                                          sides, Transport Document.
------------------------------------------------------------------------

Part 178

Section 178.71
    Section 178.71 prescribes specifications for UN pressure 
receptacles. Consistent with the UN Model Regulations, PHMSA proposes 
to amend paragraphs (d)(2), (h), (k)(2), and (l)(1) to reflect the 
adoption of the latest ISO standards for the design, construction, and 
testing of gas cylinders and their associated service equipment. In 
paragraph (l)(1), we propose to require that composite cylinders be 
designed for a design life of not less than 15 years, as well as that 
composite cylinders and tubes with a design life longer than 15 years 
must not be filled after 15 years from the date of manufacture, unless 
the design has successfully passed a service life test program. The 
service life test program must be part of the initial design type 
approval and must specify inspections and tests to demonstrate that 
cylinders manufactured accordingly remain safe to the end of their 
design life. The service life test program and the results must be 
approved by the competent authority of the country of approval that is 
responsible for the initial approval of the cylinder design. The 
service life of a composite cylinder or tube must not be extended 
beyond its initial approved design life. These paragraphs also contain 
proposed end dates for when the manufacture of cylinders and service 
equipment is no longer authorized in accordance with the outdated ISO 
standard.
    Additionally, consistent with the UN Model Regulations, PHMSA 
proposes to revise paragraph (o)(2) to adopt the current ISO standard 
relating to material compatibility and to add paragraph (g)(4) to adopt 
the current ISO standard relating to design, construction, and testing 
of stainless steel cylinders with an Rm value of less than 1,100 MPa.
    Finally, we propose to revise paragraphs (q) and (r) to indicate 
the required markings for composite cylinders and tubes with a limited 
design life of 15 years or for cylinders and tubes with a design life 
greater than 15 years, or a non-limited design life.
Section 178.75
    Section 178.75 contains specifications for Multiple-element gas 
containers (MEGCs). Consistent with the UN Model Regulations, PHMSA 
proposes to renumber existing paragraph (d)(3)(iv) as (d)(3)(v) and to 
add a new paragraph (d)(3)(iv) to incorporate ISO 9809-

[[Page 61769]]

4:2014 for stainless steel cylinders with an Rm value of less than 
1,100 MPa.
Section 178.1015
    Section 178.1015 prescribes general standards for the use of 
flexible bulk containers (FBCs). Consistent with changes to the UN 
Model Regulations, PHMSA proposes to revise paragraph (f) to require 
that FBCs be fitted with a vent that is designed to prevent the ingress 
of water in situations where a dangerous accumulation of gases may 
develop absent such a vent. It is our understanding that only one 
particular material authorized for transportation in FBCs--UN3378, 
Sodium carbonate peroxyhydrate--is known to decompose causing a 
dangerous accumulation of gas.

Part 180

Section 180.205
    Section 180.205 outlines general requirements for requalification 
of specification cylinders. PHMSA proposes an amendment to paragraph 
(c) to require that Transport Canada cylinders be requalified and 
marked in accordance with the Transport Canada TDG Regulations. This 
amendment is necessary to ensure that RIN holders utilize the TDG 
Regulations when requalifying and marking Transport Canada cylinders.
Section 180.207
    Section 180.207 prescribes requirements for requalification of UN 
pressure receptacles. Consistent with changes to the UN Model 
Regulations, PHMSA proposes to revise paragraph (d)(3) to incorporate 
ISO 10462:2013 concerning requalification of dissolved acetylene 
cylinders. This paragraph also includes an authorization to requalify 
acetylene cylinders in accordance with the current ISO standard until 
December 31, 2018.
Section 180.413
    Section 180.413 provides the requirements for the repair, 
modification, stretching, rebarrelling, or mounting of specification 
cargo tanks. Currently, Sec.  180.413(a)(1) requires that each repair 
of a specification cargo tank must be performed by a repair facility 
holding a valid National Board Certificate of Authorization for use of 
the National Board ``R'' stamp and must be made in accordance with the 
edition of the National Board Inspection Code in effect at the time the 
work is performed. ``Repair'' is defined in Sec.  180.403 as any 
welding on a cargo tank wall done to return a cargo tank or a cargo 
tank motor vehicle to its original design and construction 
specification, or to a condition prescribed for a later equivalent 
specification in effect at the time of the repair. As discussed in the 
``Harmonization Proposals in this NPRM'' section, stakeholders 
participating in the U.S.-Canada RCC identified this requirement as 
being burdensome to United States carriers who also operate in Canada. 
In accordance with the Transport Canada TDG Regulations, a facility in 
Canada can perform a repair on a specification cargo tank if it holds 
either a valid National Board Certificate of Authorization for use of 
the National Board ``R'' stamp or a valid Certificate of Authorization 
from a provincial pressure vessel jurisdiction for repair. The latter 
authorization becomes problematic for United States carriers requiring 
the repair of a DOT specification cargo tank while in Canada. Section 
180.413 currently only authorizes the repair of a DOT specification 
cargo tank by a facility holding a valid National Board Certificate of 
Authorization for use of the National Board ``R'' stamp. If a DOT 
specification cargo tank is repaired in Canada at a facility holding a 
Certificate of Authorization from a provincial pressure vessel 
jurisdiction for repair and not a National Board Certificate of 
Authorization for use of the National Board ``R'' stamp, the DOT 
specification of the cargo tank is placed in jeopardy.
    Based on this input from RCC stakeholders, PHMSA conducted a 
comparison of the HMR requirements for the repair of specification 
cargo tanks and the corresponding requirements of the Transport Canada 
TDG Regulations. PHMSA finds that the requirements for the repair of a 
specification cargo tank conducted in accordance with the Transport 
Canada TDG Regulations by a facility in Canada holding a valid 
Certificate of Authorization from a provincial pressure vessel 
jurisdiction for repair provides for at least an equivalent level of 
safety as those provided by the HMR. Further, the Transport Canada TDG 
Regulations authorize the repair of TC specification cargo tanks by 
facilities in the U.S. that are registered in accordance with part 107 
subpart F.
    Accordingly, PHMSA proposes to expand the authorization for the 
repair of DOT specification cargo tanks by revising Sec.  
180.413(a)(1). Specifically, PHMSA proposes to add a new subparagraph 
(iii) authorizing a repair, as defined in Sec.  180.403, of a DOT 
specification cargo tank used for the transportation of hazardous 
materials in the United States performed by a facility in Canada in 
accordance with the Transport Canada TDG Regulations, provided the 
facility holds a valid Certificate of Authorization from a provincial 
pressure vessel jurisdiction for repair; the facility is registered in 
accordance with the Transport Canada TDG Regulations to repair the 
corresponding TC specification; and all repairs are performed using the 
quality control procedures used to obtain the Certificate of 
Authorization.
    PHMSA also proposes an incidental revision to Sec.  180.413(b) to 
except facilities in Canada that perform a repair in accordance with 
the proposed Sec.  180.413(a)(1)(iii) from the requirement that each 
repair of a cargo tank involving welding on the shell or head must be 
certified by a Registered Inspector. The Transport Canada TDG 
Regulations provide requirements for the oversight of welding repairs 
and do not use the term ``Registered Inspector.''
    These proposed provisions would not place any additional financial 
or reporting burden on U.S. companies. Rather, the enhanced regulatory 
reciprocity between the United States and Canada as a result of these 
provisions would provide the companies with additional flexibility and 
cost savings due to necessary opportunities for obtaining repairs to 
DOT specification cargo tanks in Canada.
    See the review of Sec.  107.502 for the discussion of a related 
proposal.
Section 180.605
    Section 180.605 prescribes requirements for the qualification of 
portable tanks. Consistent with the UN Model Regulations, PHMSA 
proposes an amendment to paragraph (g)(1) to require as a part of 
internal and external examination that the wall thickness must be 
verified by appropriate measurement if this inspection indicates a 
reduction of wall thickness. This proposed amendment would require the 
inspector to verify that the shell thickness is equal to or greater 
than the minimum shell thickness indicated on the portable tanks metal 
plate (see Sec.  178.274(i)(1)).

VII. Regulatory Analyses and Notices

A. Statutory/Legal Authority for This Rulemaking

    This proposed rule is published under the statutory authority of 
Federal hazardous materials transportation law (49 U.S.C. 5101 et 
seq.). Section 5103(b) of Federal hazmat law authorizes the Secretary 
of Transportation to prescribe regulations for the safe transportation, 
including security, of hazardous materials in intrastate, interstate, 
and foreign commerce. This proposed rule

[[Page 61770]]

amends regulations to maintain alignment with international standards 
by incorporating various amendments, including changes to proper 
shipping names, hazard classes, packing groups, special provisions, 
packaging authorizations, air transport quantity limitations and vessel 
stowage requirements. To this end, the proposed rule amends the HMR to 
more fully align with the biennial updates of the UN Model Regulations, 
the IMDG Code, and the ICAO Technical Instructions.
    Harmonization serves to facilitate international commerce, while 
also promoting the safety of people, property, and the environment by 
reducing the potential for confusion and misunderstanding that could 
result if shippers and transporters were required to comply with two or 
more conflicting sets of regulatory requirements. While the intent of 
this rulemaking is to align the HMR with international standards, we 
review and consider each amendment based on its own merit, on its 
overall impact on transportation safety, and on the economic 
implications associated with its adoption into the HMR. Our goal is to 
harmonize internationally without sacrificing the current HMR level of 
safety or imposing undue burdens on the regulated community. Thus, as 
explained in the corresponding sections above, we are not proposing 
harmonization with certain specific provisions of the UN Model 
Regulations, the IMDG Code, and the ICAO Technical Instructions. 
Moreover, we are maintaining a number of current exceptions for 
domestic transportation that should minimize the compliance burden on 
the regulated community. Additionally, the following external agencies 
were consulted in the development of this rule: Federal Aviation 
Administration, Federal Motor Carrier Safety Administration, Federal 
Railroad Administration, U.S. Coast Guard.
    Section 49 U.S.C. 5120(b) of Federal hazmat law authorizes the 
Secretary to ensure that, to the extent practicable, regulations 
governing the transportation of hazardous materials in commerce are 
consistent with standards adopted by international authorities. This 
rule proposes to amend the HMR to maintain alignment with international 
standards by incorporating various amendments to facilitate the 
transport of hazardous material in international commerce. To this end, 
as discussed in detail above, PHMSA proposes to incorporate changes 
into the HMR based on the 19th Revised Edition of the UN Model 
Regulations, Amendment 38-16 to the IMDG Code, and the 2017-2018 
Edition of the ICAO Technical Instructions, which become effective 
January 1, 2017. The large volume of hazardous materials transported in 
international commerce warrants the harmonization of domestic and 
international requirements to the greatest extent possible.

B. Executive Order 12866, Executive Order 13563, and DOT Regulatory 
Policies and Procedures

    This notice is not considered a significant regulatory action under 
section 3(f) of Executive Order 12866 (``Regulatory Planning and 
Review'') and, therefore, was not reviewed by the Office of Management 
and Budget. This notice is not considered a significant rule under the 
Regulatory Policies and Procedures of the Department of Transportation 
(44 FR 11034). Additionally, Executive Order 13563 (``Improving 
Regulation and Regulatory Review'') supplements and reaffirms Executive 
Order 12866, stressing that, to the extent permitted by law, an agency 
rulemaking action must be based on benefits that justify its costs, 
impose the least burden, consider cumulative burdens, maximize 
benefits, use performance objectives, and assess available 
alternatives.
Benefits to Harmonization
    General Harmonization Benefit: In an earlier regulatory 
evaluation,\10\ PHMSA estimated a proxy for benefits of harmonization 
of the HMR with international standards of $87.9 million. We estimated 
this number by multiplying a hazard communication cost per dollar of 
hazardous materials output ($0.001) by the value of hazardous materials 
involved in international trade, as estimated by the proportion of 
trade (the total of gross imports and gross exports) in the fuels and 
lubricants, chemicals, and medicinal/dental/pharmaceutical products 
industries ($879 billion in 2013) \11\ that are hazardous products 
(approximately 10 percent).
---------------------------------------------------------------------------

    \10\ HM-215M: Hazardous Materials: Harmonization with 
International Standards (RRR), Final Rule, 80 FR 1075, January 8, 
2015.
    \11\ As reported in the quarterly trade data of the U.S. Bureau 
of Economic Analysis, available at: http://www.bea.gov/international/detailed_trade_data.htm.
---------------------------------------------------------------------------

    For estimating benefits of this proposed rule, we follow a nearly 
identical approach, while acknowledging there is an inherent 
imprecision of benefits, and update the data and assumptions where 
possible. Unlike in the last regulatory evaluation, 2012 Commodity Flow 
Survey (CFS) data on hazardous materials is now available. According to 
the 2012 CFS, $13,852,143 million worth of commodities were transported 
in the U.S. in 2012, of which $2,334,425 million worth were hazardous 
(or 16.9 percent).\12\
---------------------------------------------------------------------------

    \12\ http://www.rita.dot.gov/bts/sites/rita.dot.gov.bts/files/publications/commodity_flow_survey/2012/hazardous_materials/index.html.
---------------------------------------------------------------------------

    However, we acknowledge that the estimated 16.9 percent proportion 
of total shipment values classed as hazardous materials may have had a 
high-side bias due to the variety of different classes of products 
classified as hazardous. The percentage of shipments properly 
classified as hazardous--particularly for medicinal/dental/
pharmaceutical products--is likely lower, which for the purpose of this 
analysis we assume to be 10 percent.
    We update our estimate of value of hazardous materials involved in 
international trade by using U.S. trade in goods seasonally adjusted, 
Census-based total gross imports, and gross exports in the fuels and 
lubricants, chemicals, and medicinal/dental/pharmaceutical products 
industries for 2015, which is the most recent year available.
     Gross imports: $451.8 billion (rounded).
    [cir] Fuels and lubricants: $198.217 billion.
    [cir] Chemicals: $73.304 billion.
    [cir] Medicinal/dental/pharmaceutical products: $180.280 billion.
     Gross exports: $281.6 billion (rounded).
    [cir] Fuels and lubricants: $115.013 billion.
    [cir] Chemicals: $111.492 billion.
    [cir] Medicinal/dental/pharmaceutical products: $55.046 billion.
     Gross imports plus gross exports: $733.4 billion.\13\
---------------------------------------------------------------------------

    \13\ Bureau of Economic Analysis, U.S. Department of Commerce, 
U.S. Trade in Goods (IDS-0008), available at: http://www.bea.gov/international/detailed_trade_data.htm.
---------------------------------------------------------------------------

    Multiplying this $733.4 billion figure by the estimated proportion 
of annual trade in these three industries that are hazardous products 
(10 percent) by the average hazard communication cost per dollar of 
hazardous materials produced in the United States ($0.001) results in 
an estimate of benefits from general harmonization of about $73.3 
million annually, rounded.
    If the HMR are not harmonized with international standards, we 
estimate that it will cost U.S. companies an additional $73.3 million 
per year to comply with both the domestic and international standards. 
Harmonizing the HMR with the international

[[Page 61771]]

standards, however, will avert these $73.3 million in additional costs, 
making them the primary benefit attributable to this rulemaking.
    RCC Initiatives: PHMSA believes that recognition under the HMR of 
Transport Canada cylinders, equivalency certificates, and cargo tanks 
would not result in any significant costs but would instead provide 
benefits in flexibility to cylinder users, shipments of hazardous 
materials made under an equivalency certificate to the U.S., and 
certain U.S.-based cargo tank motor vehicle operators requiring repairs 
while in Canada. We do not believe there is currently a basis for 
reliably estimating quantitatively the benefits of the cylinder and 
equivalency certificate provisions of this proposed rule. However, we 
welcome and specifically solicit data available to commenters to more 
accurately estimate benefits quantitatively. With regard to all three 
RCC proposed amendments, PHMSA believes that aligning regulatory 
approaches between Canada and the United States can spur economic 
growth and job creation in both nations, facilitate trade, and still 
maintain appropriate safety standards. Preliminary analysis indicates 
that the total annual benefit of the cargo tank RCC provisions proposed 
in this rulemaking would be $6,555,234 per year (for the high estimate 
of U.S.-made cargo tanks affected), $779,337 per year (for the middle 
estimate), or $693,804 per year (for the low estimate). Please see the 
Regulatory Impact Analysis (RIA) for this rulemaking action for a 
detailed discussion of the benefits of recognizing cargo tank repairs 
made in Canadian facilities.
Costs of Harmonization
    Please see the RIA for this rulemaking--a copy of which has been 
placed in the docket--for detailed analysis of the costs of various 
amendments proposed in this NPRM. We provide below a summary of cost 
estimates for several of the larger cost proposals.
    Incorporation by Reference: PHMSA anticipates that the primary cost 
of updating references incorporated in the HMR to the most recent 
international hazardous material standards will be the purchase of 
updated copies to be incorporated by reference. These costs will be 
borne by offerors, package manufacturers, and transporters of hazardous 
materials if this rulemaking were finalized.
    It is unknown how many individuals and firms involved in shipping 
hazardous materials will purchase copies of these international 
standards as a result of finalizing this rulemaking. We take a 
conservative approach to estimating such a figure by using as a proxy 
the number of shippers, carriers, or other offerors or transporters of 
hazardous materials in commerce with a PHMSA registration expiring 
before 2019. Currently, PHMSA's registration database indicates 38,070 
registrants as of March 18, 2016.\14\ Of these, 31,103 (approximately 
82 percent) are small businesses as defined by the U.S. Small Business 
Administration. Further, 31,765 registrants (approximately 83 percent) 
indicated that they offer or transport hazardous materials solely by 
highway method.
---------------------------------------------------------------------------

    \14\ See PHMSA Hazardous Materials Registration Program 
Registration Data Files, link available at: http://www.phmsa.dot.gov/hazmat/registration, accessed on March 18, 2016.
---------------------------------------------------------------------------

    If we assume (for conservative estimation purposes) that all 
registrants will purchase copies of the ICAO and IMDG publications, 
this indicates an estimated cost of $19.3 million (rounded, $508.70 
cost of ICAO and IMDG publications x 38,070 registrants). However, we 
further assume that the two publications included in the $19.3 cost 
(ICAO Technical Instructions (for air) and IMDG Code (by vessel)) will 
not apply to such registrants who indicated that they offer or 
transport in commerce hazardous materials only via highway. Therefore, 
costs for the 31,765 highway-only registrants would be zero. To 
counterbalance a registrant purchasing more than one copy, we 
conservatively assume all other registrants--while acknowledging that, 
in fact, some will purchase both standards copies and some will 
purchase none--will purchase updated copies of all standards 
publications listed here, indicating a rounded cost of $3.2 million 
($508.70 x 6,305 registrants [38,070 total registrants - 31,765 
highway-only registrants]).
    All of the ISO standards incorporated will not be purchased by the 
majority of shippers and carriers and, thus, will likely only impact a 
small subset of the regulated community. Further, we assume that many 
companies will purchase multiple copies of the ISO codes, rather than 
only one copy. Manufacturers of pressure receptacles impacted by the 
ISO codes are included in the North American Industry Classification 
System (NAICS) 332420 ``Metal Tank (Heavy Gauge) Manufacturing,'' which 
includes cylinders, and NAICS 332911 ``Industrial Valve 
Manufacturing,'' or more generally in NAICS 332, ``Fabricated Metal 
Product Manufacturing.'' Users of pressure receptacles impacted by the 
ISO codes are included in NAICS 325120 ``Industrial Gas 
Manufacturing,'' or more generally in NAICS 325 ``Chemical 
Manufacturing.'' Testers and requalifiers of pressure receptacles are 
included in NAICS 541380 ``Testing Laboratories,'' or more generally in 
NAICS 541 ``Professional, Scientific, and Technical Services.'' The 
more conservative, all-encompassing three-digit NAICS industries are 
used to estimate impacted entities, as each entity may purchase more 
than one copy of a publication. The PHMSA registration database has 834 
registrants in NAICS 332; 3,335 registrants in NAICS 325; and 415 
registrants in NAICS 541, for a total of 4,584 impacted registrants. It 
costs each impacted registrant $1,853 to purchase the ISO standards, or 
$8.5 million total (rounded, 4,584 impacted registrants x $1,853 cost 
per registrant).
    It will cost $3.2 million to purchase the ICAO and IMDG 
publications and $8.5 million to purchasing the ISO publications, 
giving a total one-time cost of $11.7 million. We do not believe we 
have sufficient data to estimate the precise number of registrants. 
However, we use one copy per impacted registrant as a reasonably 
conservative estimate on costs of the proposed rulemaking. It should 
also be noted that several of the companies purchasing the 
international standards may serve international markets and would have 
purchased these publications even in the absence of this rulemaking. 
Therefore, costs due to this proposed rule are likely lower than these 
estimates.
    Lithium Battery Hazard Communication: PHMSA anticipates that 
incorporating a new battery label in place of the existing label and 
requiring a new lithium battery label in place of the existing label 
will be cost neutral. We anticipate that the price of the new label 
will be similar to the price of existing labels. The proposed amendment 
provides a phase-in period to December 2018, allowing shippers and 
carriers of the impacted lithium battery shipments a sufficient 
transition period to use the new label.
    PHMSA anticipates that incorporating a new standard lithium battery 
mark across all modes will provide consistent hazard communication, 
reduce training costs, and facilitate intermodal movements. Expanding 
the scope of packages requiring application of the new lithium battery 
mark for small shipments of lithium batteries will provide benefits 
pertaining to better identification of lithium battery shipments, but 
it will likely involve some amount of increased compliance cost. As 
with the proposed labeling

[[Page 61772]]

revisions, PHMSA would provide a phase-in period to December 2018, 
allowing shippers and carriers of the impacted lithium battery 
shipments a sufficient transition period to use the new mark.
    PHMSA anticipates that eliminating additional document requirements 
for shipments of small lithium batteries will likely provide economic 
benefits and cost savings to shippers.
    However, PHMSA anticipates the provision increasing the number of 
packages containing lithium batteries installed in equipment that have 
to be marked with the lithium battery mark will increase compliance 
costs. The proposals in this NPRM would apply the lithium battery mark 
to an expanded number of lithium batteries installed in equipment 
(LBIIE) packages. Currently packages that contain ``no more than four 
lithium cells or two lithium batteries installed in equipment'' are not 
subject to marking requirements regardless of how many packages are in 
a single shipment. In this NPRM, PHMSA proposes to require each package 
that contains lithium batteries installed in equipment to display the 
lithium battery marking when there are more than two packages in the 
consignment.
    We assume that U.S. manufacturers of certain equipment containing 
lithium batteries and wholesalers of LBIIE that supply retailers with 
consignments containing more than two packages of LBIIE will be most 
impacted by the proposed provision.\15\ We anticipate the provisions of 
this proposed change to impact U.S.-based manufacturers, wholesalers, 
and certain retailers of lithium batteries and equipment containing 
lithium batteries. PHMSA specifically solicits comment on the types and 
numbers of entities that are to be impacted by this proposed change.
---------------------------------------------------------------------------

    \15\ We assume that most retailers selling to end users are 
likely not impacted, as we assume that they primarily ship single 
units of LBIIE for the majority of their consignments, which would 
not require marking due to the two or few packages per consignment 
exception. However, we solicit comment on whether this assumption is 
appropriate and welcome data confirming or refuting this assumption.
---------------------------------------------------------------------------

    The total domestic manufacturer and wholesaler marking costs as 
illustrated in the RIA in the docket for this rulemaking approximates 
the upper bound annual cost of the provision to be about $4.9 million 
($838,456 + $7,665 + $4.0 million).\16\ We anticipate that the cost 
will be substantially lower because many domestic manufacturers and 
shippers may already label their LBIIE packages with a current lithium 
battery label (regardless if required by the HMR); not all of these 
shippers would necessarily ship LBIIE with more than two packages per 
shipment (for which shipments would be excepted from the lithium 
battery marking requirements of this provision); and transitioning to 
the new lithium battery mark may have minimal impact.
---------------------------------------------------------------------------

    \16\ Because of the 2-year transition period, these costs would 
not be encountered until the third year after finalizing the rule.
---------------------------------------------------------------------------

Net Benefit
    Based on the discussions of benefits and costs provided above, 
PHMSA estimates the net benefit associated with the rulemaking to be 
$63.2 million-69 million in the first year after publication and $70 
million-75.8 million in the second year after publication. Please see 
the complete RIA for a more detailed analysis of the costs and benefits 
of this proposed rule.

C. Executive Order 13132

    This proposed rule has been analyzed in accordance with the 
principles and criteria contained in Executive Order 13132 
(``Federalism''). It preempts State, local, and Indian tribe 
requirements but does not propose any regulation that 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. Therefore, the 
consultation and funding requirements of Executive Order 13132 do not 
apply.
    The Federal hazmat law, 49 U.S.C. 5101-5128, contains an express 
preemption provision (49 U.S.C. 5125(b)) that preempts State, local, 
and Indian tribe requirements on certain covered subjects, as follows:
    (1) The designation, description, and classification of hazardous 
material;
    (2) The packing, repacking, handling, labeling, marking, and 
placarding of hazardous material;
    (3) The preparation, execution, and use of shipping documents 
related to hazardous material and requirements related to the number, 
contents, and placement of those documents;
    (4) The written notification, recording, and reporting of the 
unintentional release in transportation of hazardous material; and
    (5) The design, manufacture, fabrication, inspection, marking, 
maintenance, recondition, repair, or testing of a packaging or 
container represented, marked, certified, or sold as qualified for use 
in transporting hazardous material in commerce.
    This proposed rule addresses covered subject items (1), (2), (3), 
(4), and (5) above and preempts State, local, and Indian tribe 
requirements not meeting the ``substantively the same'' standard. This 
proposed rule is necessary to incorporate changes adopted in 
international standards, effective January 1, 2017. If the proposed 
changes are not adopted in the HMR, U.S. companies--including numerous 
small entities competing in foreign markets--would be at an economic 
disadvantage because of their need to comply with a dual system of 
regulations. The changes in this proposed rulemaking are intended to 
avoid this result. Federal hazmat law provides at 49 U.S.C. 5125(b)(2) 
that, if DOT issues a regulation concerning any of the covered 
subjects, DOT must determine and publish in the Federal Register the 
effective date of Federal preemption. The effective date may not be 
earlier than the 90th day following the date of issuance of the final 
rule and not later than two years after the date of issuance. PHMSA 
proposes the effective date of Federal preemption be 90 days from 
publication of a final rule in this matter.

D. Executive Order 13175

    This proposed rule was analyzed in accordance with the principles 
and criteria contained in Executive Order 13175 (``Consultation and 
Coordination with Indian Tribal Governments''). Because this proposed 
rule does not have tribal implications, does not impose substantial 
direct compliance costs, and is required by statute, the funding and 
consultation requirements of Executive Order 13175 do not apply.

E. Regulatory Flexibility Act, Executive Order 13272, and DOT 
Procedures and Policies

    The Regulatory Flexibility Act (5 U.S.C. 601 et seq.) requires an 
agency to review regulations to assess their impact on small entities, 
unless the agency determines that a rule is not expected to have a 
significant impact on a substantial number of small entities. This 
proposed rule facilitates the transportation of hazardous materials in 
international commerce by providing consistency with international 
standards. It applies to offerors and carriers of hazardous materials, 
some of whom are small entities, such as chemical manufacturers, users 
and suppliers, packaging manufacturers, distributors, and training 
companies. As previously discussed under ``Executive Order 12866,'' the 
majority of amendments in this proposed rule should result in cost 
savings and ease the regulatory compliance burden for shippers engaged 
in domestic and international commerce, including trans-border 
shipments within North America.

[[Page 61773]]

    Many companies will realize economic benefits as a result of these 
amendments. Additionally, the changes effected by this NPRM will 
relieve U.S. companies, including small entities competing in foreign 
markets, from the burden of complying with a dual system of 
regulations. Therefore, we certify that these amendments will not, if 
promulgated, have a significant economic impact on a substantial number 
of small entities.
    This proposed rule has been developed in accordance with Executive 
Order 13272 (``Proper Consideration of Small Entities in Agency 
Rulemaking'') and DOT's procedures and policies to promote compliance 
with the Regulatory Flexibility Act to ensure that potential impacts of 
draft rules on small entities are properly considered.

F. Paperwork Reduction Act

    PHMSA currently has approved information collections under Office 
of Management and Budget (OMB) Control Number 2137-0557, ``Approvals 
for Hazardous Materials,'' and OMB Control Number 2137-0034, 
``Hazardous Materials Shipping Papers & Emergency Response 
Information.'' We anticipate that this proposed rule will result in an 
increase in the annual burden for OMB Control Number 2137-0034 due to 
an increase in the number of applications for modifications to existing 
holders of DOT-issued RINs. In this NPRM, PHMSA proposes to amend Sec.  
107.805(f)(2) to allow RIN holders to submit an application containing 
all the required information prescribed in Sec.  107.705(a); 
identifying the TC, CTC, CRC, or BTC specification cylinder(s) or 
tube(s) to be inspected; certifying the requalifier will operate in 
compliance with the applicable TDG Regulations; and certifying the 
persons performing requalification have been trained and have the 
information contained in the TDG Regulations. This application would be 
in addition to any existing application and burden encountered during 
the initial RIN application.
    We anticipate this proposed rule will result in a decrease in the 
annual burden and costs of OMB Control Number 2137-0034. This burden 
and cost decrease is primarily attributable to the proposed removal of 
the alternative document currently required for lithium cells or 
batteries offered in accordance with Sec.  173.185(c). Additional 
increased burdens and costs to OMB Control Number 2137-0034 in this 
proposed rule are attributable to a new proposed indication on shipping 
papers that a shipment of prototype or low production run lithium 
batteries or cells is in accordance with Sec.  173.185(e)(7) and the 
proposed addition of new marine pollutant entries.
    This rulemaking identifies revised information collection requests 
that PHMSA will submit to OMB for approval based on the requirements in 
this NPRM. PHMSA has developed burden estimates to reflect changes in 
this NPRM and estimates the information collection and recordkeeping 
burdens in this rule are as follows:
OMB Control Number 2137-0557
    Annual Increase in Number of Respondents: 3,600.
    Annual Increase in Annual Number of Responses: 3,600.
    Annual Increase in Annual Burden Hours: 1,800.
    Annual Increase in Annual Burden Costs: $63,000.
OMB Control Number 2137-0034
    Annual Decrease in Number of Respondents: 972,551.
    Annual Decrease in Annual Number of Responses: 9,765,507.
    Annual Decrease in Annual Burden Hours: 27,161.
    Annual Decrease in Annual Burden Costs: $950,635.
    Under the Paperwork Reduction Act of 1995, no person is required to 
respond to an information collection unless it has been approved by OMB 
and displays a valid OMB control number. Section 1320.8(d) of 5 CFR 
requires that PHMSA provide interested members of the public and 
affected agencies an opportunity to comment on information and 
recordkeeping requests. PHMSA specifically solicits comment on the 
information collection and recordkeeping burdens associated with 
developing, implementing, and maintaining these proposed requirements. 
Address written comments to the Dockets Unit as identified in the 
ADDRESSES section of this rulemaking. We must receive comments 
regarding information collection burdens prior to the close of the 
comment period as identified in the DATES section of this rulemaking. 
In addition, you may submit comments specifically related to the 
information collection burden to the PHMSA Desk Officer, Office of 
Management and Budget, at fax number 202-395-6974. Requests for a copy 
of this information collection should be directed to Steven Andrews or 
T. Glenn Foster, Standards and Rulemaking Division (PHH-10), Pipeline 
and Hazardous Materials Safety Administration, 1200 New Jersey Avenue 
SE., Washington, DC 20590-0001. If these proposed requirements are 
adopted in a final rule, PHMSA will submit the revised information 
collection and recordkeeping requirements to OMB for approval.

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 contained in the heading of 
this document can be used to cross-reference this action with the 
Unified Agenda.

H. Unfunded Mandates Reform Act of 1995

    This proposed rule does not impose unfunded mandates under the 
Unfunded Mandates Reform Act of 1995. It does not result in costs of 
$141.3 million or more, adjusted for inflation, to either State, local, 
or tribal governments, in the aggregate, or to the private sector in 
any one year, and is the least burdensome alternative that achieves the 
objective of the rule.

I. Environmental Assessment

    The National Environmental Policy Act of 1969, 42 U.S.C. 4321-4375, 
requires that Federal agencies analyze proposed actions to determine 
whether the action will have a significant impact on the human 
environment. The Council on Environmental Quality (CEQ) regulations 
that implement NEPA (40 CFR parts 1500 through 1508) require Federal 
agencies to conduct an environmental review considering (1) the need 
for the proposed action, (2) alternatives to the proposed action, (3) 
probable environmental impacts of the proposed action and alternatives, 
and (4) the agencies and persons consulted during the consideration 
process.
1. Purpose and Need
    This NPRM would amend the Hazardous Materials Regulations (HMR; 49 
CFR parts 171 through 180) to maintain consistency with international 
standards by incorporating the 19th Revised Edition of the UN 
Recommendations on the Transport of Dangerous Goods--Model Regulations, 
Amendment 38-16 to the IMDG Code, the 2017-2018 ICAO Technical 
Instructions, and Canada's newest amendments to TDG Regulations.
    This action is necessary to incorporate changes adopted in the IMDG 
Code, the ICAO Technical Instructions, and the UN Model Regulations, 
effective January 1, 2017. If the changes in this proposed rule are not 
adopted in the HMR by this effective date, U.S. companies--including 
numerous small entities

[[Page 61774]]

competing in foreign markets--would be at an economic disadvantage 
because of their need to comply with a dual system of regulations. The 
changes in this proposed rulemaking are intended to avoid this result.
    The intended effect of this action is to harmonize the HMR with 
international transport standards and requirements to the extent 
practicable in accordance with Federal hazmat law (see 49 U.S.C. 5120). 
When considering the adoption of international standards under the HMR, 
PHMSA reviews and evaluates each amendment on its own merit, on its 
overall impact on transportation safety, and on the economic 
implications associated with its adoption. Our goal is to harmonize 
internationally without diminishing the level of safety currently 
provided by the HMR or imposing undue burdens on the regulated public. 
PHMSA has provided a brief summary of each revision, the justification 
for the revision, and a preliminary estimate of economic impact.
2. Alternatives
    In proposing this rulemaking, PHMSA is considering the following 
alternatives:
No Action Alternative
    If PHMSA were to select the No Action Alternative, current 
regulations would remain in place and no new provisions would be added. 
However, efficiencies gained through harmonization in updates to 
transport standards, lists of regulated substances, definitions, 
packagings, stowage requirements/codes, flexibilities allowed, enhanced 
markings, segregation requirements, etc., would not be realized. 
Foregone efficiencies in the No Action Alternative include freeing up 
limited resources to concentrate on vessel transport hazard 
communication (hazcom) issues of potentially much greater environmental 
impact. Adopting the No Action Alternative would result in a lost 
opportunity for reducing environmental and safety-related incidents.
    Greenhouse gas emissions would remain the same under the No Action 
Alternative.
Preferred Alternative
    This alternative is the current proposal as it appears in this 
NPRM, applying to transport of hazardous materials by various transport 
modes (highway, rail, vessel, and aircraft). The proposed amendments 
included in this alternative are more fully addressed in the preamble 
and regulatory text sections of this NPRM. However, they generally 
include:
    (1) Updates to references to various international hazardous 
materials transport standards;
    (2) Amendments to the Hazardous Materials Table to include four new 
Division 4.1 entries for polymerizing substances and to add into the 
HMR defining criteria, authorized packagings, and safety requirements;
    (3) Amendments to add, revise, or remove certain proper shipping 
names, packing groups, special provisions, packaging authorizations, 
bulk packaging requirements, and vessel stowage requirements;
    (4) Changes to add the following substances to the list of marine 
pollutants in appendix B to Sec.  172.101: Hexanes; Hypochlorite 
solutions; Isoprene, stabilized; N-Methylaniline; Methylcyclohexane; 
and Tripropylene;
    (5) Changes throughout the part 173 packaging requirements to 
authorize more flexibility when choosing packages for hazardous 
materials;
    (6) Various amendments to packaging requirements for the vessel 
transportation of water-reactive substances;
    (7) Revisions to hazard communication requirements for shipments of 
lithium batteries consistent with changes adopted in the 19th Revised 
Edition of the UN Model Regulations; and
    (8) Amendments to the HMR resulting from coordination with Canada 
under the U.S.-Canada Regulatory Cooperation Council (RCC).
3. Probable Environmental Impact of the Alternatives
No Action Alternative
    If PHMSA were to select the No Action Alternative, current 
regulations would remain in place and no new provisions would be added. 
However, efficiencies gained through harmonization in updates to 
transport standards, lists of regulated substances, definitions, 
packagings, stowage requirements/codes, flexibilities allowed, enhanced 
markings, segregation requirements, etc., would not be realized. 
Foregone efficiencies in the No Action Alternative include freeing up 
limited resources to concentrate on vessel transport hazcom issues of 
potentially much greater environmental impact.
    Additionally, the Preferred Alternative encompasses enhanced and 
clarified regulatory requirements, which would result in increased 
compliance and a decreased number of environmental and safety 
incidents. Not adopting the proposed environmental and safety 
requirements in the NPRM under the No Action Alternative would result 
in a lost opportunity for reducing environmental and safety-related 
incidents.
    Greenhouse gas emissions would remain the same under the No Action 
Alternative.
Preferred Alternative
    If PHMSA selects the provisions as proposed in this NPRM, safety 
and environmental risks would be reduced and that protections to human 
health and environmental resources would be increased. Potential 
environmental impacts of each proposed amendment in the preferred 
alternative are discussed as follows:
    1. Incorporation by Reference: PHMSA proposes to update references 
to various international hazardous materials transport standards 
including the 2017-2018 ICAO Technical Instructions; Amendment 38-16 to 
the IMDG Code; the 19th Revised Edition of the UN Model Regulations; 
the 6th Revised Edition of the UN Manual of Tests and Criteria; and the 
latest amendments to the Canadian TDG Regulations. Additionally, we 
propose to add one new reference to standards and update eight other 
references to standards applicable to the manufacture use and 
requalification of pressure vessels published by the International 
Organization for Standardization.
    This proposed amendment, which will increase standardization and 
consistency of regulations, will result in greater protection of human 
health and the environment. Consistency between U.S. and international 
regulations enhances the safety and environmental protection of 
international hazardous materials transportation through better 
understanding of the regulations, an increased level of industry 
compliance, the smooth flow of hazardous materials from their points of 
origin to their points of destination, and consistent emergency 
response in the event of a hazardous materials incident. The HMR 
authorize shipments prepared in accordance with the ICAO Technical 
Instructions and by motor vehicle either before or after being 
transported by aircraft. Similarly, the HMR authorize shipments 
prepared in accordance with the IMDG Code if all or part of the 
transportation is by vessel. The authorizations to use the ICAO 
Technical Instructions and the IMDG Code are subject to certain 
conditions and limitations outlined in part 171 subpart C.
    Harmonization will result in more targeted and effective training 
and

[[Page 61775]]

thereby enhanced environmental protection. This proposed amendment will 
eliminate inconsistent hazardous materials regulations, which hamper 
compliance training efforts. For ease of compliance with appropriate 
regulations, air and vessel carriers engaged in the transportation of 
hazardous materials generally elect to comply with the ICAO Technical 
Instructions and IMDG Code as appropriate. Consistency between these 
international regulations and the HMR allows shippers and carriers to 
train their hazmat employees in a single set of requirements for 
classification, packaging, hazard communication, handling, stowage, 
etc., thereby minimizing the possibility of improperly preparing and 
transporting a shipment of hazardous materials because of differences 
between domestic and international regulations.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
    2. Consistent with amendments adopted into the UN Model 
Regulations, PHMSA proposes to revise the Hazardous Materials Table in 
Sec.  172.101 to include four new Division 4.1 entries for polymerizing 
substances. Additionally, we propose to add into the HMR defining 
criteria, authorized packagings, and safety requirements including, but 
not limited to, stabilization methods and operational controls.
    This proposed amendment, which will increase standardization and 
consistency of regulations, will result in greater protection of human 
health and the environment. Consistency between U.S. and international 
regulations enhances the safety and environmental protection of 
international hazardous materials transportation through better 
understanding of the regulations, an increased level of industry 
compliance, the smooth flow of hazardous materials from their points of 
origin to their points of destination, and consistent emergency 
response in the event of a hazardous materials incident. New and 
revised entries to the HMT reflect emerging technologies and a need to 
better describe or differentiate between existing entries. These 
proposed changes mirror changes in the Dangerous Goods List of the 19th 
Revised Edition of the UN Model Regulations, the 2017-2018 ICAO 
Technical Instructions, and the Amendment 38-16 to the IMDG Code. It is 
extremely important for the domestic HMR to mirror these international 
standards regarding the entries in the HMT to allow for consistent 
naming conventions across modes and international borders.
    Harmonization will result in more targeted and effective training 
and thereby enhanced environmental protection. This proposed amendment 
will eliminate inconsistent hazardous materials regulations, which 
hamper compliance training efforts. For ease of compliance with 
appropriate regulations, international carriers engaged in the 
transportation of hazardous materials by vessel generally elect to 
comply with the IMDG Code. Consistency between these international 
regulations and the HMR allows shippers and carriers to train their 
hazmat employees in a single set of requirements for classification, 
packaging, hazard communication, handling, stowage, etc., thereby 
minimizing the possibility of improperly preparing and transporting a 
shipment of hazardous materials because of differences between domestic 
and international regulations.
    Inclusion of entries in the HMT reflects a degree of danger 
associated with a particular material and identifies appropriate 
packaging. This proposed change provides a level of consistency for all 
articles specifically listed in the HMT, without diminishing 
environmental protection and safety.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
    3. PHMSA proposes amendments to the HMT to add, revise, or remove 
certain proper shipping names, packing groups, special provisions, 
packaging authorizations, bulk packaging requirements, and vessel 
stowage requirements. Amendments to HMT proper shipping names include: 
Assigning the existing ``Engines, internal combustion'' entries to 
their own new UN numbers and provisions; amending existing ``Uranium 
Hexafluoride'' entries to include a new Division 6.1 subsidiary hazard 
class designation; adding a new entry for ``Polyester resin kit, solid 
base material; and adding a Division 1.4C new entry for ``Rocket 
motors.'' Additionally, we also propose to add and revise special 
provisions, large packaging authorizations, and intermediate bulk 
container (IBC) authorizations consistent with the UN Model Regulations 
to provide a wider range of packaging options to shippers of hazardous 
materials.
    This proposed amendment, which will increase standardization and 
consistency of regulations, will result in greater protection of human 
health and the environment. Consistency between U.S. and international 
regulations enhances the safety and environmental protection of 
international hazardous materials transportation through better 
understanding of the regulations, an increased level of industry 
compliance, the smooth flow of hazardous materials from their points of 
origin to their points of destination, and consistent emergency 
response in the event of a hazardous materials incident. New and 
revised entries to the HMT reflect emerging technologies and a need to 
better describe or differentiate between existing entries. These 
proposed changes mirror changes in the Dangerous Goods List of the 19th 
Revised Edition of the UN Model Regulations, the 2017-2018 ICAO 
Technical Instructions, and the Amendment 38-16 to the IMDG Code. It is 
extremely important for the domestic HMR to mirror these international 
standards regarding the entries in the HMT to allow for consistent 
naming conventions across modes and international borders.
    Harmonization will result in more targeted and effective training 
and thereby enhanced environmental protection. This proposed amendment 
will eliminate inconsistent hazardous materials regulations, which 
hamper compliance training efforts. For ease of compliance with 
appropriate regulations, international carriers engaged in the 
transportation of hazardous materials by vessel generally elect to 
comply with the IMDG Code. Consistency between these international 
regulations and the HMR allows shippers and carriers to train their 
hazmat employees in a single set of requirements for classification, 
packaging, hazard communication, handling, stowage, etc., thereby 
minimizing the possibility of improperly preparing and transporting a 
shipment of hazardous materials because of differences between domestic 
and international regulations.
    Inclusion of entries in the HMT reflects a degree of danger 
associated with a particular material and identifies appropriate 
packaging. This proposed change provides a level of consistency for all 
articles specifically listed in the HMT, without diminishing 
environmental protection and safety.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
    4. PHMSA proposes to add the following substances to the list of 
marine pollutants in appendix B to Sec.  172.101: Hexanes; Hypochlorite 
solutions; Isoprene, stabilized; N-Methylaniline; Methylcyclohexane; 
and Tripropylene.
    This proposed amendment, which will increase standardization and

[[Page 61776]]

consistency of regulations, will result in greater protection of human 
health and the environment. Consistency between U.S. and international 
regulations enhances the safety and environmental protection of 
international hazardous materials transportation through better 
understanding of the regulations, an increased level of industry 
compliance, the smooth flow of hazardous materials from their points of 
origin to their points of destination, and consistent emergency 
response in the event of a hazardous materials incident. These proposed 
additions and deletions are based on the criteria contained in the IMDG 
Code for substances classified as toxic to the aquatic environment. The 
HMR maintain a list as the basis for regulating substances toxic to the 
aquatic environment and allow use of the criteria in the IMDG Code if a 
listed material does not meet the criteria for a marine pollutant. 
PHMSA periodically updates its list based on changes to the IMDG Code 
and evaluation of listed materials against the IMDG Code criteria. 
Amending the marine pollutant list will facilitate consistent 
communication of the presence of marine pollutants and facilitate safe 
and efficient transportation without imposing significant burden 
associated with characterizing mixtures as marine pollutants.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
    5. Consistent with amendments adopted into the UN Model 
Regulations, PHMSA proposes to adopt changes throughout the part 173 
packaging requirements to authorize more flexibility when choosing 
packages for hazardous materials. These changes include design, 
construction, and performance testing criteria of composite reinforced 
tubes between 450 L and 3,000 L water capacity.
    These proposed amendments permit additional flexibility for 
authorized packages without compromising environmental protection or 
safety. Manufacturing and performance standards for gas pressure 
receptacles strengthen the packaging without being overly prescriptive. 
Increased flexibility will also add to environmental protection by 
increasing the ease of regulatory compliance.
    Harmonization will result in more targeted and effective training 
and thereby enhanced environmental protection. This proposed amendment 
will eliminate inconsistent hazardous materials regulations, which 
hamper compliance training efforts. Consistency between these 
international regulations and the HMR allows shippers and carriers to 
train their hazmat employees in a single set of requirements for 
classification, packaging, hazard communication, handling, stowage, 
etc., thereby minimizing the possibility of improperly preparing and 
transporting a shipment of hazardous materials because of differences 
between domestic and international regulations.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
    6. PHMSA proposes various amendments to packaging requirements for 
the vessel transportation of water-reactive substances. The amendments 
include changes to the packaging requirements to require certain 
commodities to have hermetically sealed packaging and to require other 
commodities--when packed in flexible, fiberboard, or wooden 
packagings--to have sift-proof and water-resistant packaging or 
packaging fitted with a sift-proof and water-resistant liner.
    The proposed amendment will reduce the risk of fire on board cargo 
vessels carrying hazardous materials that can react dangerously with 
the ship's available water and carbon dioxide fire extinguishing 
systems. PHMSA proposes to amend the packaging requirements for vessel 
transportation of hazardous materials that react with water or moisture 
to generate excessive heat or release toxic or flammable gases. Common 
causes for water entering into the container are: Water entering 
through ventilation or structural flaws in the container; water 
entering into the containers placed on deck or in the hold in heavy 
seas; and water entering into the cargo space upon a ship collision or 
leak. If water has already entered the container, the packaging is the 
only protection from the fire. In this NPRM, PHMSA proposes to 
strengthen the ability of these packages transporting water-reactive 
substances. This proposed amendment will allow for a net increase in 
environmental protection and safety by keeping reactive substances in 
their packages, thus preventing release and damage to human health and 
the natural environment.
    Harmonization will result in more targeted and effective training 
and thereby enhanced environmental protection. This proposed amendment 
will eliminate inconsistent hazardous materials regulations, which 
hamper compliance training efforts. For ease of compliance with 
appropriate regulations, international carriers engaged in the 
transportation of hazardous materials by vessel generally elect to 
comply with the IMDG Code. Consistency between these international 
regulations and the HMR allows shippers and carriers to train their 
hazmat employees in a single set of requirements for classification, 
packaging, hazard communication, handling, stowage, etc., thereby 
minimizing the possibility of improperly preparing and transporting a 
shipment of hazardous materials because of differences between domestic 
and international regulations.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
    7. PHMSA proposes to revise hazard communication requirements for 
shipments of lithium batteries. Specifically, PHMSA proposes to adopt a 
new lithium battery label in place of the existing Class 9 label; to 
amend the existing marking requirements for small lithium battery 
shipments in Sec.  173.185(c) to incorporate a new standard lithium 
battery mark for use across all modes; to delete the documentation 
requirement in Sec.  173.185(c) for shipments of small lithium cells 
and batteries; and to amend the exception for small lithium cells and 
batteries requiring the lithium battery mark from the current 
applicability of ``no more than four lithium cells or two lithium 
batteries installed in the equipment'' to ``no more than four lithium 
cells or two lithium batteries installed in equipment, where there are 
not more than two packages in the consignment.''
    This proposed amendment, which will provide for enhanced hazard 
communication, will result in greater protection of human health and 
the environment by increasing awareness and preparedness.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
    8. PHMSA proposes several amendments to the HMR resulting from 
coordination with Canada under the U.S.-Canada Regulatory Cooperation 
Council (RCC). We are proposing provisions for recognition of Transport 
Canada (TC) cylinders, equivalency certificates, and inspection and 
repair of cargo tanks.
    This proposed amendment, which will increase standardization and 
consistency of regulations, will result in greater protection of human 
health and the environment. Consistency between U.S. and international 
regulations enhances the safety and environmental protection of 
international hazardous materials transportation through better 
understanding of the regulations, an increased level of industry 
compliance, the smooth flow of hazardous materials from their points of 
origin to their

[[Page 61777]]

points of destination, and consistent emergency response in the event 
of a hazardous materials incident. The proposed additions intend to 
provide reciprocal treatment of DOT Special Permits and TC equivalency 
certificates, DOT cylinders and TC cylinders, and cargo tank repair 
capabilities in both countries. Amending the HMR will facilitate 
consistent communication for substances transported by cylinders and 
cargo tanks, thus decreasing not only incident response time, but the 
number and severity of environmental and safety incidents.
    The proposed action is consistent with concurrent actions by 
Transport Canada to amend the TDG Regulations.
    Greenhouse gas emissions would remain the same under this proposed 
amendment.
4. Agencies Consulted
    This NPRM represents PHMSA's first action in the U.S. for this 
program area. PHMSA has coordinated with the U.S. Federal Aviation 
Administration, the Federal Motor Carrier Safety Administration, the 
Federal Railroad Administration, and the U.S. Coast Guard, in the 
development of this proposed rule. PHMSA will consider the views 
expressed in comments to the NPRM submitted by members of the public, 
state and local governments, and industry.
5. Conclusion
    The provisions of this proposed rule build on current regulatory 
requirements to enhance the transportation safety and security of 
shipments of hazardous materials transported by highway, rail, 
aircraft, and vessel, thereby reducing the risks of an accidental or 
intentional release of hazardous materials and consequent environmental 
damage. PHMSA concludes that the net environmental impact will be 
positive and that there are no significant environmental impacts 
associated with this proposed rule.
    PHMSA welcomes any views, data, or information related to 
environmental impacts that may result if the proposed requirements are 
adopted, as well as possible alternatives and their environmental 
impacts.

J. Privacy Act

    Anyone is able to search the electronic form of any written 
communications and comments received into any of our dockets by the 
name of the individual submitting the document (or signing the 
document, if submitted on behalf of an association, business, labor 
union, etc.). You may review DOT's complete Privacy Act Statement in 
the Federal Register published on April 11, 2000 (65 FR 19477), or you 
may visit http://www.dot.gov/privacy.html.

K. Executive Order 13609 and International Trade Analysis

    Under Executive Order 13609 (``Promoting International Regulatory 
Cooperation''), agencies must consider whether the impacts associated 
with significant variations between domestic and international 
regulatory approaches are unnecessary or may impair the ability of 
American business to export and compete internationally. In meeting 
shared challenges involving health, safety, labor, security, 
environmental, and other issues, international regulatory cooperation 
can identify approaches that are at least as protective as those that 
are or would be adopted in the absence of such cooperation. 
International regulatory cooperation can also reduce, eliminate, or 
prevent unnecessary differences in regulatory requirements.
    Similarly, the Trade Agreements Act of 1979 (Pub. L. 96-39), as 
amended by the Uruguay Round Agreements Act (Pub. L. 103-465), 
prohibits Federal agencies from establishing any standards or engaging 
in related activities that create unnecessary obstacles to the foreign 
commerce of the United States. For purposes of these requirements, 
Federal agencies may participate in the establishment of international 
standards, so long as the standards have a legitimate domestic 
objective, such as providing for safety, and do not operate to exclude 
imports that meet this objective. The statute also requires 
consideration of international standards and, where appropriate, that 
they be the basis for U.S. standards.
    PHMSA participates in the establishment of international standards 
to protect the safety of the American public. PHMSA has assessed the 
effects of the proposed rule and determined that it does not cause 
unnecessary obstacles to foreign trade. In fact, the rule is designed 
to facilitate international trade. Accordingly, this rulemaking is 
consistent with Executive Order 13609 and PHMSA's obligations under the 
Trade Agreement Act, as amended.

L. National Technology Transfer and Advancement Act

    The National Technology Transfer and Advancement Act of 1995 (15 
U.S.C. 272 note) directs Federal agencies to use voluntary consensus 
standards in their regulatory activities unless doing so would be 
inconsistent with applicable law or otherwise impractical. Voluntary 
consensus standards are technical standards (e.g., specification of 
materials, test methods, or performance requirements) that are 
developed or adopted by voluntary consensus standard bodies. This NPRM 
involves multiple voluntary consensus standards which are discussed at 
length in the ``Section-by-Section Review'' for Sec.  171.7.

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 171

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

49 CFR Part 172

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

49 CFR Part 173

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

49 CFR Part 175

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

49 CFR Part 176

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

49 CFR Part 178

    Hazardous materials transportation, Incorporation by reference, 
Motor vehicle safety, Packaging and containers, 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.


[[Page 61778]]


    In consideration of the foregoing, PHMSA proposes to amend 49 CFR 
chapter I as follows:

PART 107--HAZARDOUS MATERIALS PROGRAM PROCEDURES

0
1. The authority citation for part 107 continues to read as follows:

    Authority:  49 U.S.C. 5101-5128, 44701; Pub. L. 101-410 section 
4 (28 U.S.C. 2461note); Pub. L. 104-121 sections 212-213; Pub. L. 
104-134 section 31001; Pub. L. 112-141 section 33006, 33010; 49 CFR 
1.81 and 1.97.

0
2. In Sec.  107.502, paragraph (b) is revised to read as follows:


Sec.  107.502  General registration requirements.

* * * * *
    (b) No person may engage in the manufacture, assembly, 
certification, inspection or repair of a cargo tank or cargo tank motor 
vehicle manufactured under the terms of a DOT specification under 
subchapter C of this chapter or a special permit issued under this part 
unless the person is registered with the Department in accordance with 
the provisions of this subpart. A person employed as an inspector or 
design certifying engineer is considered to be registered if the 
person's employer is registered. The requirements of this paragraph do 
not apply to a person engaged in the repair of a DOT specification 
cargo tank used in the transportation of hazardous materials in the 
United States in accordance with Sec.  180.413(a)(1)(iii) of this 
chapter.
* * * * *
0
3. In Sec.  107.801, paragraph (a)(2) is revised to read as follows:


Sec.  107.801  Purpose and scope.

    (a) * * *
    (2) A person who seeks approval to engage in the requalification 
(e.g. inspection, testing, or certification), rebuilding, or repair of 
a cylinder manufactured in accordance with a DOT specification or a 
pressure receptacle in accordance with a UN standard under subchapter C 
of this chapter or under the terms of a special permit issued under 
this part, or a cylinder or tube manufactured in accordance with a TC, 
CTC, CRC, or BTC specification under the Transport Canada TDG 
Regulations (IBR; see Sec.  171.7);
* * * * *
0
4. In Sec.  107.805, paragraphs (a), (c)(2), (d), and (f) are revised 
to read as follows:


Sec.  107.805  Approval of cylinder and pressure receptacle 
requalifiers.

    (a) General. A person must meet the requirements of this section to 
be approved to inspect, test, certify, repair, or rebuild a cylinder in 
accordance with a DOT specification or a UN pressure receptacle under 
subpart C of part 178 or subpart C of part 180 of this chapter, or 
under the terms of a special permit issued under this part, or a TC, 
CTC, CRC, or BTC specification cylinder or tube manufactured in 
accordance with the TDG Regulations (IBR, see Sec.  171.7 of this 
subchapter).
* * * * *
    (c) * * *
    (2) The types of DOT specification or special permit cylinders, UN 
pressure receptacles, or TC, CTC, CRC, or BTC specification cylinders 
or tubes that will be inspected, tested, repaired, or rebuilt at the 
facility;
* * * * *
    (d) Issuance of requalifier identification number (RIN). The 
Associate Administrator issues a RIN as evidence of approval to 
requalify DOT specification or special permit cylinders, or TC, CTC, 
CRC, or BTC specification cylinders or tubes, or UN pressure 
receptacles if it is determined, based on the applicant's submission 
and other available information, that the applicant's qualifications 
and, when applicable, facility are adequate to perform the requested 
functions in accordance with the criteria prescribed in subpart C of 
part 180 of this subchapter or TDG Regulations, as applicable.
* * * * *
    (f) Exceptions. The requirements in paragraphs (b) and (c) of this 
section do not apply to:
    (1) A person who only performs inspections in accordance with Sec.  
180.209(g) of this chapter provided the application contains the 
following, in addition to the information prescribed in Sec.  
107.705(a): Identifies the DOT specification/special permit cylinders 
to be inspected; certifies the requalifier will operate in compliance 
with the applicable requirements of subchapter C of this chapter; 
certifies the persons performing inspections have been trained and have 
the information contained in each applicable CGA pamphlet incorporated 
by reference in Sec.  171.7 of this chapter applicable to the 
requalifiers' activities; and includes the signature of the person 
making the certification and the date on which it was signed. Each 
person must comply with the applicable requirements in this subpart. In 
addition, the procedural requirements in subpart H of this part apply 
to the filing, processing and termination of an approval issued under 
this subpart; or
    (2) A person holding a DOT-issued RIN to perform the 
requalification (inspect, test, certify), repair, or rebuild of DOT 
specification cylinders, that wishes to perform any of these actions on 
corresponding TC, CTC, CRC, or BTC cylinders or tubes may submit an 
application that, in addition to the information prescribed in Sec.  
107.705(a): Identifies the TC, CTC, CRC, or BTC specification 
cylinder(s) or tube(s) to be inspected; certifies the requalifier will 
operate in compliance with the applicable TDG Regulations; certifies 
the persons performing requalification have been trained in the 
functions applicable to the requalifiers' activities; and includes the 
signature of the person making the certification and the date on which 
it was signed. In addition, the procedural requirements in subpart H of 
this part apply to the filing, processing and termination of an 
approval issued under this subpart.
    (3) A person holding a certificate of registration issued by 
Transport Canada in accordance with the TDG Regulations to perform the 
requalification (inspect, test, certify), repair, or rebuild of a TC, 
CTC, CRC, or BTC cylinder who performs any of these actions on 
corresponding DOT specification cylinders.
* * * * *

PART 171--GENERAL INFORMATION, REGULATIONS, AND DEFINITIONS

0
5. The authority citation for part 171 continues to read as follows:

    Authority: 49 U.S.C. 5101-5128, 44701; Pub. L. 101-410 section 4 
(28 U.S.C. 2461 note); Pub. L. 104-134, section 31001; 49 CFR 1.81 
and 1.97.

0
6. In Sec.  171.2, paragraph (h)(1) is revised to read as follows:


Sec.  171.2  General requirements.

    (h) * * *
    (1) Specification identifications that include the letters ``ICC'', 
``DOT'', ``TC'', ``CTC'', ``CRC'', ``BTC'', ``MC'', or ``UN'';
* * * * *
0
7. In Sec.  171.7,
0
a. Revise paragraphs (t) introductory text, (t)(1), (v) introductory 
text, (v)(2), and (w)(1) through (58);
0
b. Add paragraphs (w)(59) through (69);
0
c. Revise paragraphs (bb) introductory text and (bb)(1) introductory 
text;
0
d. Add paragraphs (bb)(1)(xiii) through (xix);
0
e. Revise paragraphs (dd) introductory text and (dd)(1) and (2); and
0
f. Add paragraph (dd)(3).
    The revisions and additions read as follows:

[[Page 61779]]

Sec.  171.7  Reference material.

* * * * *
    (t) International Civil Aviation Organization (``ICAO''), 999 
Robert-Bourassa Boulevard, Montr[eacute]al, Quebec H3C 5H7, Canada, 1-
514-954-8219, http://www.icao.int. ICAO Technical Instructions 
available from: ICAO Document Sales Unit, [email protected].
    (1) Technical Instructions for the Safe Transport of Dangerous 
Goods by Air (ICAO Technical Instructions), 2017-2018 Edition, into 
Sec. Sec.  171.8; 171.22; 171.23; 171.24; 172.101; 172.202; 172.401; 
172.512; 172.519; 172.602; 173.56; 173.320; 175.10, 175.33; 178.3.
* * * * *
    (v) International Maritime Organization (``IMO''), 4 Albert 
Embankment, London, SE1 7SR, United Kingdom, + 44 (0) 20 7735 7611, 
http://www.imo.org. IMDG Code available from: IMO Publishing, 
[email protected].
    (1) * * *
    (2) International Maritime Dangerous Goods Code (IMDG Code), 
Incorporating Amendment 38-16 (English Edition), 2016 Edition, into 
Sec. Sec.  171.22; 171.23; 171.25; 172.101; 172.202; 172.203 172.401; 
172.502; 172.519; 172.602; 173.21; 173.56; 176.2; 176.5; 176.11; 
176.27; 176.30; 176.83; 176.84; 176.140; 176.720; 178.3; 178.274.
    (w) * * *
    (1) ISO 535-1991(E) Paper and board--Determination of water 
absorptiveness--Cobb method, 1991, into Sec. Sec.  178.516; 178.707; 
178.708.
    (2) ISO 1496-1: 1990 (E)--Series 1 freight containers--
Specification and testing, Part 1: General cargo containers. Fifth 
Edition, (August 15, 1990), into Sec.  173.411.
    (3) ISO 1496-3(E)--Series 1 freight containers--Specification and 
testing--Part 3: Tank containers for liquids, gases and pressurized dry 
bulk, Fourth edition, March 1995, into Sec. Sec.  178.74; 178.75; 
178.274.
    (4) ISO 1516:2002(E), Determination of flash/no flash--Closed cup 
equilibrium method, Third Edition, 2002-03-01, into Sec.  173.120.
    (5) ISO 1523:2002(E), Determination of flash point--Closed cup 
equilibrium method, Third Edition, 2002-03-01, into Sec.  173.120.
    (6) ISO 2431-1984(E) Standard Cup Method, 1984, into Sec.  173.121.
    (7) ISO 2592:2000(E), Determination of flash and fire points--
Cleveland open cup method, Second Edition, 2000-09-15, into Sec.  
173.120.
    (8) ISO 2719:2002(E), Determination of flash point--Pensky-Martens 
closed cup method, Third Edition, 2002-11-15, into Sec.  173.120.
    (9) ISO 2919:1999(E), Radiation Protection--Sealed radioactive 
sources--General requirements and classification, (ISO 2919), second 
edition, February 15, 1999, into Sec.  173.469.
    (10) ISO 3036-1975(E) Board--Determination of puncture resistance, 
1975, into Sec.  178.708.
    (11) ISO 3405:2000(E), Petroleum products--Determination of 
distillation characteristics at atmospheric pressure, Third Edition, 
2000-03-01, into Sec.  173.121.
    (12) ISO 3574-1986(E) Cold-reduced carbon steel sheet of commercial 
and drawing qualities, into Sec.  178.503; part 178, appendix C.
    (13) ISO 3679:2004(E), Determination of flash point--Rapid 
equilibrium closed cup method, Third Edition, 2004-04-01, into Sec.  
173.120.
    (14) ISO 3680:2004(E), Determination of flash/no flash--Rapid 
equilibrium closed cup method, Fourth Edition, 2004-04-01, into Sec.  
173.120.
    (15) ISO 3807-2(E), Cylinders for acetylene--Basic requirements--
Part 2: Cylinders with fusible plugs, First edition, March 2000, into 
Sec. Sec.  173.303; 178.71.
    (16) ISO 3807:2013: Gas cylinders--Acetylene cylinders--Basic 
requirements and type testing, Second edition, 2013-08-19, into 
Sec. Sec.  173.303; 178.71.
    (17) ISO 3924:1999(E), Petroleum products--Determination of boiling 
range distribution--Gas chromatography method, Second Edition, 1999-08-
01, into Sec.  173.121.
    (18) ISO 4126-1:2004(E): Safety devices for protection against 
excessive pressure--Part 1: Safety valves, Second edition 2004-02-15, 
into Sec.  178.274.
    (19) ISO 4126-7:2004(E): Safety devices for protection against 
excessive pressure--Part 7: Common data, First Edition 2004-02-15 into 
Sec.  178.274.
    (20) ISO 4126-7:2004/Cor.1:2006(E): Safety devices for protection 
against excessive pressure--Part 7: Common data, Technical Corrigendum 
1, 2006-11-01, into Sec.  178.274.
    (21) ISO 4626:1980(E), Volatile organic liquids--Determination of 
boiling range of organic solvents used as raw materials, First Edition, 
1980-03-01, into Sec.  173.121.
    (22) ISO 4706:2008(E), Gas cylinders--Refillable welded steel 
cylinders--Test pressure 60 bar and below, First Edition, 2008-04-15, 
Corrected Version, 2008-07-01, into Sec.  178.71.
    (23) ISO 6406(E), Gas cylinders--Seamless steel gas cylinders--
Periodic inspection and testing, Second edition, February 2005, into 
Sec.  180.207.
    (24) ISO 6892 Metallic materials--Tensile testing, July 15, 1984, 
First Edition, into Sec.  178.274.
    (25) ISO 7225(E), Gas cylinders--Precautionary labels, Second 
Edition, July 2005, into Sec.  178.71.
    (26) ISO 7866(E), Gas cylinders--Refillable seamless aluminum alloy 
gas cylinders--Design, construction and testing, First edition, June 
1999, into Sec.  178.71.
    (27) ISO 7866:2012 Gas cylinders--Refillable seamless aluminium 
alloy gas cylinders--Design, construction and testing, Second edition, 
2012-08-21, into Sec.  178.71.
    (28) ISO 7866:2012/Cor 1:2014 Gas cylinders--Refillable seamless 
aluminium alloy gas cylinders--Design, construction and testing, 
Technical Corrigendum 1, 2014-04-15, into Sec.  178.71.
    (29) ISO 8115 Cotton bales--Dimensions and density, 1986 Edition, 
into Sec.  172.102.
    (30) ISO 9809-1:1999(E): Gas cylinders--Refillable seamless steel 
gas cylinders--Design, construction and testing--Part 1: Quenched and 
tempered steel cylinders with tensile strength less than 1100 MPa., 
First edition, June 1999, into Sec. Sec.  178.37; 178.71; 178.75.
    (31) ISO 9809-1:2010(E): Gas cylinders--Refillable seamless steel 
gas cylinders--Design, construction and testing--Part 1: Quenched and 
tempered steel cylinders with tensile strength less than 1 100 MPa., 
Second edition, 2010-04-15, into Sec. Sec.  178.37; 178.71; 178.75.
    (32) ISO 9809-2:2000(E): Gas cylinders--Refillable seamless steel 
gas cylinders--Design, construction and testing--Part 2: Quenched and 
tempered steel cylinders with tensile strength greater than or equal to 
1 100 MPa., First edition, June 2000, into Sec. Sec.  178.71; 178.75.
    (33) ISO 9809-2:2010(E): Gas cylinders--Refillable seamless steel 
gas cylinders--Design, construction and testing--Part 2: Quenched and 
tempered steel cylinders with tensile strength greater than or equal to 
1100 MPa., Second edition, 2010-04-15, into Sec. Sec.  178.71; 178.75.
    (34) ISO 9809-3:2000(E): Gas cylinders--Refillable seamless steel 
gas cylinders--Design, construction and testing--Part 3: Normalized 
steel cylinders, First edition, December 2000, into Sec. Sec.  178.71; 
178.75.
    (35) ISO 9809-3:2010(E): Gas cylinders--Refillable seamless steel 
gas cylinders--Design, construction and testing--Part 3: Normalized 
steel cylinders, Second edition, 2010-04-15, into Sec. Sec.  178.71; 
178.75.
    (36) ISO 9809-4:2014 Gas cylinders--Refillable seamless steel gas 
cylinders--

[[Page 61780]]

Design, construction and testing--Part 4: Stainless steel cylinders 
with an Rm value of less than 1 100 MPa, First edition, 2014-07-08, 
into Sec. Sec.  178.71; 178.75.
    (37) ISO 9978:1992(E)--Radiation protection--Sealed radioactive 
sources--Leakage test methods. First Edition, (February 15, 1992), into 
Sec.  173.469.
    (38) ISO 10156:2010(E): Gases and gas mixtures--Determination of 
fire potential and oxidizing ability for the selection of cylinder 
valve outlets, Third edition, 2010-04-01, into Sec.  173.115.
    (39) ISO 10156:2010/Cor.1:2010(E): Gases and gas mixtures--
Determination of fire potential and oxidizing ability for the selection 
of cylinder valve outlets, Technical Corrigendum 1, 2010-09-01, into 
Sec.  173.115.
    (40) ISO 10297:1999(E), Gas cylinders--Refillable gas cylinder 
valves--Specification and type testing, First Edition, 1995-05-01, into 
Sec. Sec.  173.301b; 178.71.
    (41) ISO 10297:2006(E), Transportable gas cylinders--Cylinder 
valves--Specification and type testing, Second Edition, 2006-01-15, 
into Sec. Sec.  173.301b; 178.71.
    (42) ISO 10297:2014 Gas cylinders--Cylinder valves--Specification 
and type testing, Third Edition, 20014-07-16, into Sec. Sec.  173.301b; 
178.71.
    (43) ISO 10461:2005(E), Gas cylinders--Seamless aluminum-alloy gas 
cylinders--Periodic inspection and testing, Second Edition, 2005-02-15 
and Amendment 1, 2006-07-15, into Sec.  180.207.
    (44) ISO 10462 (E), Gas cylinders--Transportable cylinders for 
dissolved acetylene--Periodic inspection and maintenance, Second 
edition, February 2005, into Sec.  180.207.
    (45) ISO 10462:2013 Gas cylinders--Acetylene cylinders--Periodic 
inspection and maintenance, Third edition, 2013-12-05, into Sec.  
180.207.
    (46) ISO 10692-2:2001(E), Gas cylinders--Gas cylinder valve 
connections for use in the micro-electronics industry--Part 2: 
Specification and type testing for valve to cylinder connections, First 
Edition, 2001-08-01, into Sec. Sec.  173.40; 173.302c.
    (47) ISO 11114-1:2012(E), Gas cylinders--Compatibility of cylinder 
and valve materials with gas contents--Part 1: Metallic materials, 
Second edition, 2012-03-15, into Sec. Sec.  172.102; 173.301b; 178.71.
    (48) ISO 11114-2:2013 Gas cylinders--Compatibility of cylinder and 
valve materials with gas contents--Part 2: Non-metallic materials, 
Second edition, 2013-03-21, into Sec. Sec.  173.301b; 178.71.
    (49) ISO 11117:1998(E): Gas cylinders--Valve protection caps and 
valve guards for industrial and medical gas cylinders.--Design, 
construction and tests, First edition, 1998-08-01, into Sec.  173.301b.
    (50) ISO 11117:2008(E): Gas cylinders--Valve protection caps and 
valve guards--Design, construction and tests, Second edition, 2008-09-
01, into Sec.  173.301b.
    (51) ISO 11117:2008/Cor.1:2009(E): Gas cylinders--Valve protection 
caps and valve guards--Design, construction and tests, Technical 
Corrigendum 1, 2009-05-01, into Sec.  173.301b.
    (52) ISO 11118(E), Gas cylinders--Non-refillable metallic gas 
cylinders--Specification and test methods, First edition, October 1999, 
into Sec.  178.71.
    (53) ISO 11119-1(E), Gas cylinders--Gas cylinders of composite 
construction--Specification and test methods--Part 1: Hoop-wrapped 
composite gas cylinders, First edition, May 2002, into Sec.  178.71.
    (54) ISO 11119-1:2012 Gas cylinders--Refillable composite gas 
cylinders and tubes--Design, construction and testing--Part 1: Hoop 
wrapped fibre reinforced composite gas cylinders and tubes up to 450 l, 
Second edition, 2012-07-25, into Sec.  178.71.
    (55) ISO 11119-2(E), Gas cylinders--Gas cylinders of composite 
construction--Specification and test methods--Part 2: Fully wrapped 
fibre reinforced composite gas cylinders with load-sharing metal 
liners, First edition, May 2002, into Sec.  178.71.
    (56) ISO 11119-2:2012 Gas cylinders--Refillable composite gas 
cylinders and tubes--Design, construction and testing--Part 2: Fully 
wrapped fibre reinforced composite gas cylinders and tubes up to 450 l 
with load-sharing metal liners, Second edition, 2012-07-13, into Sec.  
178.71.
    (57) ISO 11119-2:2012/Amd 1:2014 Gas cylinders--Refillable 
composite gas cylinders and tubes--Design, construction and testing--
Part 2: Fully wrapped fibre reinforced composite gas cylinders and 
tubes up to 450 l with load-sharing metal liners, Second edition, 2014-
08-11, into Sec.  178.71.
    (58) ISO 11119-3(E), Gas cylinders of composite construction--
Specification and test methods--Part 3: Fully wrapped fibre reinforced 
composite gas cylinders with non-load-sharing metallic or non-metallic 
liners, First edition, September 2002, into Sec.  178.71.
    (59) ISO 11119-3:2013 Gas cylinders--Refillable composite gas 
cylinders and tubes--Design, construction and testing--Part 3: Fully 
wrapped fibre reinforced composite gas cylinders and tubes up to 450 l 
with non-load-sharing metallic or non-metallic liners, Second edition, 
2013-04-17, into Sec.  178.71.
    (60) ISO 11120(E), Gas cylinders--Refillable seamless steel tubes 
of water capacity between 150 L and 3000 L--Design, construction and 
testing, First edition, March 1999, into Sec. Sec.  178.71; 178.75.
    (61) ISO 11513:2011(E), Gas cylinders--Refillable welded steel 
cylinders containing materials for sub-atmospheric gas packaging 
(excluding acetylene)--Design, construction, testing, use and periodic 
inspection, First edition, 2011-09-12, into Sec. Sec.  173.302c; 
178.71; 180.207.
    (62) ISO 11515:2013 Gas cylinders--Refillable composite reinforced 
tubes of water capacity between 450 L and 3000 L--Design, construction 
and testing, First edition, 2013-07-22, into Sec.  178.71.
    (63) ISO 11621(E), Gas cylinders--Procedures for change of gas 
service, First edition, April 1997, into Sec. Sec.  173.302, 173.336, 
173.337.
    (64) ISO 11623(E), Transportable gas cylinders--Periodic inspection 
and testing of composite gas cylinders, First edition, March 2002, into 
Sec.  180.207.
    (65) ISO 13340:2001(E) Transportable gas cylinders--Cylinder valves 
for non-refillable cylinders--Specification and prototype testing, 
First edition, 2004-04-01, into Sec. Sec.  173.301b; 178.71.
    (66) ISO 13736:2008(E), Determination of flash point--Abel closed-
cup method, Second Edition, 2008-09-15, into Sec.  173.120.
    (67) ISO 16111:2008(E), Transportable gas storage devices--Hydrogen 
absorbed in reversible metal hydride, First Edition, 2008-11-15, into 
Sec. Sec.  173.301b; 173.311; 178.71.
    (68) ISO 18172-1:2007(E), Gas cylinders--Refillable welded 
stainless steel cylinders--Part 1: Test pressure 6 MPa and below, First 
Edition, 2007-03-01, into Sec.  178.71.
    (69) ISO 20703:2006(E), Gas cylinders--Refillable welded aluminum-
alloy cylinders--Design, construction and testing, First Edition, 2006-
05-01, into Sec.  178.71.
* * * * *
    (bb) Transport Canada, Transport Dangerous Goods. Mailstop: ASD 330 
Sparks Street, Ottawa, Ontario, Canada K1A 0N5, 416-973-1868, http://www.tc.gc.ca.
    (1) Transportation of Dangerous Goods Regulations (Transport Canada 
TDG Regulations), into Sec. Sec.  171.12; 171.22; 171.23; 172.401; 
172.502; 172.519; 172.602; 173.31; 173.32; 173.33; 180.413.
* * * * *
    (xiii) SOR/2014-152 July 2, 2014.

[[Page 61781]]

    (xiv) SOR/2014-159 July 2, 2014.
    (xv) SOR/2014-159 Erratum July 16, 2014.
    (xvi) SOR/2014-152 Erratum August 27, 2014.
    (xvii) SOR/2014-306 December 31, 2014.
    (xviii) SOR/2014-306 Erratum January 28, 2015.
    (xix) SOR/2015-100 May 20, 2015.
* * * * *
    (dd) United Nations, Bookshop, GA-1B-103, New York, NY 10017, 1-
212-963-7680, https://shop.un.org or [email protected].
    (1) UN Recommendations on the Transport of Dangerous Goods, Model 
Regulations (UN Recommendations), 19th revised edition, Volumes I and 
II (2015), into Sec. Sec.  171.8; 171.12; 172.202; 172.401; 172.407; 
172.502; 173.22; 173.24; 173.24b; 173.40; 173.56; 173.192; 173.302b; 
173.304b; 178.75; 178.274.
    (2) UN Recommendations on the Transport of Dangerous Goods, Manual 
of Tests and Criteria, (Manual of Tests and Criteria), Sixth revised 
edition (2015), into Sec. Sec.  171.24, 172.102; 173.21; 173.56; 
173.57; 173.58; 173.60; 173.115; 173.124; 173.125; 173.127; 173.128; 
173.137; 173.185; 173.220; 173.221; 173.225, part 173, appendix H; 
178.274:
    (3) UN Recommendations on the Transport of Dangerous Goods, 
Globally Harmonized System of Classification and Labelling of Chemicals 
(GHS), Sixth revised edition (2015), into Sec.  172.401.
* * * * *
0
8. In Sec.  171.8:
0
a. Revise the definition of ``Aerosol'';
0
b. Add a definition for ``Design life'' in alphabetical order;
0
c. Revise the definition of ``Large salvage packaging'';
0
d. Add definitions for ``SAPT'' and ``Service life'' in alphabetical 
order;
0
e. Revise the definition of ``UN tube''.
    The revisions and additions read as follows:


Sec.  171.8  Definitions and abbreviations.

* * * * *
    Aerosol means an article consisting of any non-refillable 
receptacle containing a gas compressed, liquefied or dissolved under 
pressure, the sole purpose of which is to expel a nonpoisonous (other 
than a Division 6.1 Packing Group III material) liquid, paste, or 
powder and fitted with a self-closing release device allowing the 
contents to be ejected by the gas.
* * * * *
    Design life, for composite cylinders and tubes, means the maximum 
life (in number of years) to which the cylinder or tube is designed and 
approved in accordance with the applicable standard.
* * * * *
    Large salvage packaging means a special packaging into which 
damaged, defective, leaking or non-conforming hazardous materials 
packages, or hazardous materials that have spilled or leaked are placed 
for the purpose of transport for recovery or disposal, that--
    (1) Is designed for mechanical handling; and
    (2) Has a net mass greater than 400 kg (882 pounds) or a capacity 
of greater than 450 L (119 gallons), but has a volume of not more than 
3 cubic meters (106 cubic feet).
* * * * *
    SAPT means self-accelerated polymerization temperature. See Sec.  
173.21(f) of this subchapter.
* * * * *
    Service life, for composite cylinders and tubes, means the number 
of years the cylinder or tube is permitted to be in service.
* * * * *
    UN tube means a transportable pressure receptacle of seamless or 
composite construction having with a water capacity exceeding 150 L 
(39.6 gallons) but not more than 3,000 L (792.5 gallons) that has been 
marked and certified as conforming to the requirements in part 178 of 
this subchapter.
* * * * *
0
9. In Sec.  171.12, paragraphs (a)(1) and (a)(4)(ii) are revised to 
read as follows:


Sec.  171.12  North American Shipments.

    (a) * * *
    (1) A hazardous material transported from Canada to the United 
States, from the United States to Canada, or transiting the United 
States to Canada or a foreign destination may be offered for 
transportation or transported by motor carrier and rail in accordance 
with the Transport Canada TDG Regulations (IBR, see Sec.  171.7) or an 
equivalency certificate (permit for equivalent level of safety) issued 
under the TDG Regulations, as authorized in Sec.  171.22, provided the 
requirements in Sec. Sec.  171.22 and 171.23, as applicable, and this 
section are met. In addition, a cylinder, cargo tank motor vehicle, 
portable tank or rail tank car authorized by the Transport Canada TDG 
Regulations may be used for transportation to, from, or within the 
United States provided the cylinder, cargo tank motor vehicle, portable 
tank or rail tank car conforms to the applicable requirements of this 
section. Except as otherwise provided in this subpart and subpart C of 
this part, the requirements in parts 172, 173, and 178 of this 
subchapter do not apply for a material transported in accordance with 
the Transport Canada TDG Regulations.
* * * * *
    (4) * * *
    (ii) A Canadian Railway Commission (CRC), Board of Transport 
Commissioners for Canada (BTC), Canadian Transport Commission (CTC) or 
Transport Canada (TC) specification cylinder manufactured, originally 
marked, and approved in accordance with the TDG regulations, and in 
full conformance with the TDG Regulations is authorized for 
transportation to, from or within the United States provided:
    (A) The CRC, BTC, CTC or TC specification cylinder corresponds with 
a DOT specification cylinder and the markings are the same as those 
specified in this subchapter, except that the original markings were 
``CRC'', ``BTC'', ``CTC'', or ``TC'';
    (B) The CRC, BTC, CTC or TC cylinder has been requalified under a 
program authorized by the TDG regulations; and
    (C) When the regulations authorize a cylinder for a specific 
hazardous material with a specification marking prefix of ``DOT,'' a 
cylinder marked ``CRC'', ``BTC'', ``CTC'', or ``TC'' otherwise bearing 
the same markings required of the specified ``DOT'' cylinder may be 
used.
    (D) Transport of the cylinder and the material it contains is in 
all other respects in conformance with the requirements of this 
subchapter (e.g. valve protection, filling requirements, operational 
requirements, etc.).
* * * * *
0
10. In Sec.  171.23, paragraph (a) is revised to read as follows:


Sec.  171.23  Requirements for specific materials and packagings 
transported under the ICAO Technical Instructions, IMDG Code, Transport 
Canada TDG Regulations, or the IAEA Regulations.

* * * * *
    (a) Conditions and requirements for cylinders--(1) Except as 
provided in this paragraph, a filled cylinder (pressure receptacle) 
manufactured to other than a DOT specification or a UN standard in 
accordance with part 178 of this subchapter, a DOT exemption or special 
permit cylinder, a TC, CTC, CRC, or BTC cylinder authorized under Sec.  
171.12, or a cylinder used as a fire extinguisher in conformance with 
Sec.  173.309(a) of this subchapter, may not be transported to, from, 
or within the United States.
    (2) Cylinders (including UN pressure receptacles) transported to, 
from, or within the United States must conform

[[Page 61782]]

to the applicable requirements of this subchapter. Unless otherwise 
excepted in this subchapter, a cylinder must not be transported 
unless--
    (i) The cylinder is manufactured, inspected and tested in 
accordance with a DOT specification or a UN standard prescribed in part 
178 of this subchapter, or a TC, CTC, CRC, or BTC specification set out 
in the TDG Regulations, except that cylinders not conforming to these 
requirements must meet the requirements in paragraph (a)(3), (4), or 
(5) of this section;
    (ii) The cylinder is equipped with a pressure relief device in 
accordance with Sec.  173.301(f) of this subchapter and conforms to the 
applicable requirements in part 173 of this subchapter for the 
hazardous material involved;
    (iii) The openings on an aluminum cylinder in oxygen service 
conform to the requirements of this paragraph, except when the cylinder 
is used for aircraft parts or used aboard an aircraft in accordance 
with the applicable airworthiness requirements and operating 
regulations. An aluminum DOT specification cylinder must have an 
opening configured with straight (parallel) threads. A UN pressure 
receptacle may have straight (parallel) or tapered threads provided the 
UN pressure receptacle is marked with the thread type, e.g. ``17E, 25E, 
18P, or 25P'' and fitted with the properly marked valve; and
    (iv) A UN pressure receptacle is marked with ``USA'' as a country 
of approval in conformance with Sec. Sec.  178.69 and 178.70 of this 
subchapter, or ``CAN'' for Canada.
    (3) Importation of cylinders for discharge within a single port 
area: A cylinder manufactured to other than a DOT specification or UN 
standard in accordance with part 178 of this subchapter, or a TC, CTC, 
BTC, or CRC specification cylinder set out in the TDG Regulations, and 
certified as being in conformance with the transportation regulations 
of another country may be authorized, upon written request to and 
approval by the Associate Administrator, for transportation within a 
single port area, provided--
    (i) The cylinder is transported in a closed freight container;
    (ii) The cylinder is certified by the importer to provide a level 
of safety at least equivalent to that required by the regulations in 
this subchapter for a comparable DOT, TC, CTC, BTC, or CRC 
specification or UN cylinder; and
    (iii) The cylinder is not refilled for export unless in compliance 
with paragraph (a)(4) of this section.
    (4) Filling of cylinders for export or for use on board a vessel: A 
cylinder not manufactured, inspected, tested and marked in accordance 
with part 178 of this subchapter, or a cylinder manufactured to other 
than a UN standard, DOT specification, exemption or special permit, or 
other than a TC, CTC, BTC, or CRC specification, may be filled with a 
gas in the United States and offered for transportation and transported 
for export or alternatively, for use on board a vessel, if the 
following conditions are met:
    (i) The cylinder has been requalified and marked with the month and 
year of requalification in accordance with subpart C of part 180 of 
this subchapter, or has been requalified as authorized by the Associate 
Administrator;
    (ii) In addition to other requirements of this subchapter, the 
maximum filling density, service pressure, and pressure relief device 
for each cylinder conform to the requirements of this part for the gas 
involved; and
    (iii) The bill of lading or other shipping paper identifies the 
cylinder and includes the following certification: ``This cylinder has 
(These cylinders have) been qualified, as required, and filled in 
accordance with the DOT requirements for export.''
    (5) Cylinders not equipped with pressure relief devices: A DOT 
specification or a UN cylinder manufactured, inspected, tested and 
marked in accordance with part 178 of this subchapter and otherwise 
conforms to the requirements of part 173 of this subchapter for the gas 
involved, except that the cylinder is not equipped with a pressure 
relief device may be filled with a gas and offered for transportation 
and transported for export if the following conditions are met:
    (i) Each DOT specification cylinder or UN pressure receptacle must 
be plainly and durably marked ``For Export Only'';
    (ii) The shipping paper must carry the following certification: 
``This cylinder has (These cylinders have) been retested and refilled 
in accordance with the DOT requirements for export.'' and
    (iii) The emergency response information provided with the shipment 
and available from the emergency response telephone contact person must 
indicate that the pressure receptacles are not fitted with pressure 
relief devices and provide appropriate guidance for exposure to fire.
* * * * *

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

0
11. The authority citation for part 172 continues to read as follows:

    Authority: 49 U.S.C. 5101-5128, 44701; 49 CFR 1.81, 1.96 and 
1.97.

0
12. In Sec.  172.101, the Hazardous Materials Table is amended by 
removing the entries under ``[REMOVE]'', by adding the entries under 
``[ADD]'' and revising entries under ``[REVISE]'' in the appropriate 
alphabetical sequence to read as follows:


Sec.  172.101  Purpose and use of the hazardous materials table.

* * * * *

[[Page 61783]]



------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                       (8)                               (9)                       (10)
                                                                                                    --------------------------------------------------------------------------------------------
                    Hazardous                                                                              Packaging (Sec.   173. ***)        Quantity limitations (see       Vessel stowage
                    materials      Hazard                                               Special     ----------------------------------------   Sec.  Sec.   173.27 and  ------------------------
    Symbols     descriptions and  class or   Identification      PG        Label       provisions                                                      175.75)
                 proper shipping  division        Nos.                     codes         (Sec.                                              ----------------------------
                      names                                                             172.102)      Exceptions     Non-bulk       Bulk       Passenger       Cargo      Location      Other
                                                                                                                                               aircraft/     aircraft
                                                                                                                                                 rail          only
(1)             (2).............       (3)  (4)............  (5).......  (6)......  (7)............  (8A)........  (8B).......  (8C).......  (9A)........  (9B)........  (10A)....  (10B)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                [REMOVE]
 
                                                                                          * * * * * * *
                Engines,                 9  UN3166.........  ..........  9........  135, A200......  220.........  220........  220........  Forbidden...  No limit....  A.
                 internal
                 combustion, or
                 Engines, fuel
                 cell, flammable
                 gas powered.
                Engines internal         9  UN3166.........  ..........  9........  135, A200......  220.........  220........  220........  No limit....  No limit....  A.
                 combustion, or
                 Engines, fuel
                 cell, flammable
                 liquid powered.
 
                                                                                          * * * * * * *
                Polyester resin          3  UN3269.........  ..........  3........  40, 149........  165.........  165........  None.......  5 kg........  5 kg........  B.
                 kit.
 
                                                                                          * * * * * * *
                [ADD]
 
                                                                                          * * * * * * *
                1,3,2-            ........  ...............  ..........  .........  A210.
                 Benzodioxaborol
                 e.
 
                                                                                          * * * * * * *
                Catecholborane..  ........  ...............  ..........  .........  A210.
 
                                                                                          * * * * * * *
                Engine, internal       2.1  UN3529.........  ..........  2.1......  363............  220.........  220........  220........  Forbidden...  No limit....  E.
                 combustion,
                 flammable gas
                 powered or
                 Engine, fuel
                 cell, flammable
                 gas powered or
                 Machinery,
                 internal
                 combustion,
                 flammable gas
                 powered or
                 Machinery, fuel
                 cell, flammable
                 gas powered.
                Engine, internal         3  UN3528.........  ..........  3........  363............  220.........  220........  220........  No limit....  No limit....  E........  149
                 combustion,
                 flammable
                 liquid powered
                 or Engine, fuel
                 cell, flammable
                 liquid powered
                 or Machinery,
                 internal
                 combustion,
                 flammable
                 liquid powered
                 or Machinery,
                 fuel cell,
                 flammable
                 liquid powered.
                Engine, internal         9  UN3530.........  ..........  9........  363............  220.........  220........  220........  No limit....  No limit....  A.
                 combustion or
                 Machinery,
                 internal
                 combustion.
 
                                                                                          * * * * * * *
                Polyester resin          3  UN3269.........  ..........  3........  40, 149........  165.........  165........  None.......  5 kg........  5 kg........  B.
                 kit, liquid
                 base material.
                Polyester resin        4.1  UN3527.........  ..........  4.1......  40, 157........  165.........  165........  None.......  5 kg........  5 kg........  B.
                 kit, solid base
                 material.
 
                                                                                          * * * * * * *
G.............  Polymerizing           4.1  UN3532.........  III.......  4.1......  387, IB3, IP19,  None........  203........  241........  10 L........  25 L........  D........  25, 52, 53
                 substance,                                                          N92, T7, TP4,
                 liquid,                                                             TP6.
                 stabilized,
                 n.o.s.
G.............  Polymerizing           4.1  UN3534.........  III.......  4.1......  387, IB3, IP19,  None........  203........  241........  Forbidden...  Forbidden...  D........  2, 25, 52,
                 substance,                                                          N92, T7, TP4,                                                                                   53
                 liquid,                                                             TP6.
                 temperature
                 controlled,
                 n.o.s.
G.............  Polymerizing           4.1  UN3531.........  III.......  4.1......  387, IB7, IP19,  None........  213........  240........  10 kg.......  25 kg.......  D........  25, 52, 53
                 substance,                                                          N92, T7, TP4,
                 solid,                                                              TP6, TP33.
                 stabilized,
                 n.o.s.
G.............  Polymerizing           4.1  UN3533.........  III.......  4.1......  387, IB7, IP19,  None........  213........  240........  Forbidden...  Forbidden...  D........  2, 25, 52,
                 substance,                                                          N92, T7, TP4,                                                                                   53
                 solid,                                                              TP6, TP33.
                 temperature
                 controlled,
                 n.o.s.
 

[[Page 61784]]

 
                                                                                          * * * * * * *
                Rocket motors...      1.4C  UN0510.........  ..........  1.4C.....  109............  None........  62.........  62.........  Forbidden...  75 kg.......  02.......  25
 
                                                                                          * * * * * * *
                [REVISE]
 
                                                                                          * * * * * * *
                Acrolein dimer,          3  UN2607.........  III.......  3........  387, B1, IB3,    150.........  203........  242........  60 L........  220 L.......  C........  25, 40
                 stabilized.                                                         T2, TP1.
                Acrolein,              6.1  UN1092.........  I.........  6.1, 3...  1, 380, 387,     None........  226........  244........  Forbidden...  Forbidden...  D........  25, 40
                 stabilized.                                                         B9, B14, B30,
                                                                                     B42, B77, T22,
                                                                                     TP2, TP7,
                                                                                     TP13, TP38,
                                                                                     TP44.
 
                                                                                          * * * * * * *
                Acrylic acid,            8  UN2218.........  II........  8, 3.....  387, B2, IB2,    154.........  202........  243........  1 L.........  30 L........  C........  25, 40
                 stabilized.                                                         T7, TP2.
                Acrylonitrile,           3  UN1093.........  I.........  3, 6.1...  387, B9, T14,    None........  201........  243........  Forbidden...  30 L........  D........  25, 40
                 stabilized.                                                         TP2, TP13.
 
                                                                                          * * * * * * *
G.............  Adsorbed gas,          2.3  UN3516.........  ..........  2.3, 8...  1, 379.........  None........  302c.......  None.......  Forbidden...  Forbidden...  D........  40
                 toxic,
                 corrosive,
                 n.o.s.
                 Inhalation
                 hazard zone A.
G.............  Adsorbed gas,          2.3  UN3516.........  ..........  2.3, 8...  2, 379, B9, B14  None........  302c.......  None.......  Forbidden...  Forbidden...  D........  40
                 toxic,
                 corrosive,
                 n.o.s.
                 Inhalation
                 hazard zone B.
G.............  Adsorbed gas,          2.3  UN3516.........  ..........  2.3, 8...  3, 379, B14....  None........  302c.......  None.......  Forbidden...  Forbidden...  D........  40
                 toxic,
                 corrosive,
                 n.o.s.
                 Inhalation
                 hazard zone C.
G.............  Adsorbed gas,          2.3  UN3516.........  ..........  2.3, 8...  4, 379.........  None........  302c.......  None.......  Forbidden...  Forbidden...  D........  40
                 toxic,
                 corrosive,
                 n.o.s.
                 Inhalation
                 hazard zone D.
 
                                                                                          * * * * * * *
G.............  Alkali metal           4.2  UN3206.........  II........  4.2, 8...  64, A7, IB5,     None........  212........  242........  15 kg.......  50 kg.......  B.
                 alcoholates,                                                        IP2, T3, TP33,
                 self-heating,                                                       W31.
                 corrosive,
                 n.o.s.
                                                             III.......  4.2, 8...  64, A7, IB8,     None........  213........  242........  25 kg.......  100 kg......  B.
                                                                                     IP3, T1, TP33,
                                                                                     W31.
                Alkali metal           4.3  UN1421.........  I.........  4.3......  A2, A3, A7,      None........  201........  244........  Forbidden...  1 L.........  D........  13, 52, 148
                 alloys, liquid,                                                     B48, N34, W31.
                 n.o.s.
                Alkali metal           4.3  UN1389.........  I.........  4.3......  A2, A3, A7,      None........  201........  244........  Forbidden...  1 L.........  D........  13, 40, 52,
                 amalgam, liquid.                                                    N34, W31.                                                                                       148
                Alkali metal           4.3  UN3401.........  I.........  4.3......  IB4, IP1, N40,   None........  211........  242........  Forbidden...  15 kg.......  D........  13, 52, 148
                 amalgam, solid.                                                     T9, TP7, TP33,
                                                                                     W32.
                Alkali metal           4.3  UN1390.........  II........  4.3......  A6, A7, A8,      151.........  212........  241........  15 kg.......  50 kg.......  E........  13, 40, 52,
                 amides.                                                             A19, A20, IB7,                                                                                  148
                                                                                     IP2, IP4, T3,
                                                                                     TP33, W31, W40.
                Alkali metal           4.3  UN3482.........  I.........  4.3, 3...  A2, A3, A7, W31  None........  201........  244........  Forbidden...  1 L.........  D........  13, 52, 148
                 dispersions,
                 flammable or
                 Alkaline earth
                 metal
                 dispersions,
                 flammable.
                Alkali metal           4.3  UN1391.........  I.........  4.3......  A2, A3, A7, W31  None........  201........  244........  Forbidden...  1 L.........  D........  13, 52, 148
                 dispersions, or
                 Alkaline earth
                 metal
                 dispersions.
 
                                                                                          * * * * * * *
G.............  Alkaline earth         4.2  UN3205.........  II........  4.2......  65, A7, IB6,     None........  212........  241........  15 kg.......  50 kg.......  B.
                 metal                                                               IP2, T3, TP33,
                 alcoholates,                                                        W31.
                 n.o.s.
                                                             III.......  4.2......  65, A7, IB8,     None........  213........  241........  25 kg.......  100 kg......  B.
                                                                                     IP3, T1, TP33,
                                                                                     W31.
                Alkaline earth         4.3  UN1393.........  II........  4.3......  A19, IB7, IP2,   151.........  212........  241........  15 kg.......  50 kg.......  E........  13, 52, 148
                 metal alloys,                                                       IP4, T3, TP33,
                 n.o.s.                                                              W31, W40.

[[Page 61785]]

 
                Alkaline earth         4.3  UN1392.........  I.........  4.3......  A19, N34, N40,   None........  201........  244........  Forbidden...  1 L.........  E........  13, 40, 52,
                 metal amalgams,                                                     W31.                                                                                            148
                 liquid.
                Alkaline earth         4.3  UN3402.........  I.........  4.3......  A19, N34, N40,   None........  211........  242........  Forbidden...  15 kg.......  D........  13, 52, 14
                 metal amalgams,                                                     T9, TP7, TP33,
                 solid.                                                              W32.
 
                                                                                          * * * * * * *
                Allyl                  6.1  UN1545.........  II........  6.1, 3...  387, A3, A7,     None........  202........  243........  Forbidden...  60 L........  D........  25, 40
                 isothiocyanate,                                                     IB2, T7, TP2.
                 stabilized.
 
                                                                                          * * * * * * *
                Allyltrichlorosi         8  UN1724.........  II........  8, 3.....  387, A7, B2,     None........  206........  243........  Forbidden...  30 L........  C........  25, 40
                 lane,                                                               B6, N34, T10,
                 stabilized.                                                         TP2, TP7, TP13.
 
                                                                                          * * * * * * *
                Aluminum carbide       4.3  UN1394.........  II........  4.3......  A20, IB7, IP2,   151.........  212........  242........  15 kg.......  50 kg.......  A........  13, 52, 148
                                                                                     IP4, N41, T3,
                                                                                     TP33, W31, W40.
 
                                                                                          * * * * * * *
                Aluminum               4.3  UN1395.........  II........  4.3, 6.1.  A19, IB5, IP2,   151.........  212........  242........  15 kg.......  50 kg.......  A........  13, 39, 40,
                 ferrosilicon                                                        T3, TP33, W31,                                                                                  52, 53, 85,
                 powder.                                                             W40.                                                                                            103, 148
                                                             III.......  4.3, 6.1.  A19, A20, IB4..  151.........  213........  241........  25 kg.......  100 kg......  A........  13, 39, 40,
                                                                                                                                                                                     52, 53, 85,
                                                                                                                                                                                     103, 148
                Aluminum hydride       4.3  UN2463.........  I.........  4.3......  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 148
 
                                                                                          * * * * * * *
                Aluminum               4.3  UN1397.........  I.........  4.3, 6.1.  A8, A19, N40,    None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 52,
                 phosphide.                                                          W32.                                                                                            85, 148
                Aluminum               6.1  UN3048.........  I.........  6.1......  A8, IB7, IP1,    None........  211........  242........  Forbidden...  15 kg.......  E........  40, 85
                 phosphide                                                           T6, TP33, W31.
                 pesticides.
                Aluminum powder,       4.1  UN1309.........  II........  4.1......  IB8, IP2, IP4,   151.........  212........  240........  15 kg.......  50 kg.......  A........  13, 39, 52,
                 coated.                                                             T3, TP33, W100.                                                                                 53, 74,
                                                                                                                                                                                     101, 147,
                                                                                                                                                                                     148
                                                             III.......  4.1......  B134, IB8, IP4,  151.........  213........  240........  25 kg.......  100 kg......  A........  13, 39, 52,
                                                                                     T1, TP33, W100.                                                                                 53, 74,
                                                                                                                                                                                     101, 147,
                                                                                                                                                                                     148
                Aluminum powder,       4.3  UN1396.........  II........  4.3......  A19, A20, IB7,   151.........  212........  242........  15 kg.......  50 kg.......  A........  13, 39, 52,
                 uncoated.                                                           IP2, IP4, T3,                                                                                   53, 148
                                                                                     TP33, W31, W40.
                                                             III.......  4.3......  A19, A20, IB8,   151.........  213........  241........  25 kg.......  100 kg......  A........  13, 39, 52,
                                                                                     IP4, T1, TP33,                                                                                  53, 148
                                                                                     W31, W40.
 
                                                                                          * * * * * * *
                Aluminum silicon       4.3  UN1398.........  III.......  4.3......  A1, A19, IB8,    151.........  213........  241........  25 kg.......  100 kg......  A........  13, 39, 40,
                 powder,                                                             IP4, T1, TP33,                                                                                  52, 53, 85,
                 uncoated.                                                           W31, W40.                                                                                       103, 148
                Aluminum               4.3  UN3170.........  II........  4.3......  128, B115, IB7,  None........  212........  242........  15 kg.......  50 kg.......  B........  13, 85, 103,
                 smelting by-                                                        IP2, IP4, T3,                                                                                   148
                 products or                                                         TP33, W31, W40.
                 Aluminum
                 remelting by-
                 products.
                                                             III.......  4.3......  128, B115, IB8,  None........  213........  241........  25 kg.......  100 kg......  B........  13, 85, 103,
                                                                                     IP4, T1, TP33,                                                                                  148
                                                                                     W31.
 
                                                                                          * * * * * * *
                2-Amino-4,6-           4.1  UN3317.........  I.........  4.1......  23, A8, A19,     None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 Dinitrophenol,                                                      A20, N41, W31.
                 wetted with not
                 less than 20
                 percent water
                 by mass.
 

[[Page 61786]]

 
                                                                                          * * * * * * *
                N-                       8  UN2815.........  III.......  8, 6.1...  IB3, T4, TP1...  154.........  203........  241........  5 L.........  60 L........  B........  12, 25, 40
                 Aminoethylpiper
                 azine.
 
                                                                                          * * * * * * *
I.............  Ammonia,               2.3  UN1005.........  ..........  2.3, 8...  4, 379, N87,     None........  304........  314, 315...  Forbidden...  Forbidden...  D........  40, 52, 57
                 anhydrous.                                                          T50.
D.............  Ammonia,               2.2  UN1005.........  ..........  2.2......  13, 379, T50...  None........  304........  314, 315...  Forbidden...  Forbidden...  D........  40, 52, 57
                 anhydrous.
 
                                                                                          * * * * * * *
                Ammonia                  8  UN2672.........  III.......  8........  336, IB3, IP8,   154.........  203........  241........  5L..........  60L.........  A........  40, 52, 85
                 solution,                                                           T7, TP2.
                 relative
                 density between
                 0.880 and 0.957
                 at 15 degrees C
                 in water, with
                 more than 10
                 percent but not
                 more than 35
                 percent ammonia.
 
                                                                                          * * * * * * *
                Ammonium               4.1  UN1310.........  I.........  4.1......  23, A2, N41,     None........  211........  None.......  0.5 kg......  0.5 kg......  D........  28, 36
                 picrate, wetted                                                     W31.
                 with not less
                 than 10 percent
                 water, by mass.
 
                                                                                          * * * * * * *
                Arsenic acid,          6.1  UN1553.........  I.........  6.1......  T20, TP2, TP7,   None........  201........  243........  1 L.........  30 L........  B........  46
                 liquid.                                                             TP13, W31.
 
                                                                                          * * * * * * *
                Barium..........       4.3  UN1400.........  II........  4.3......  A19, IB7, IP2,   151.........  212........  241........  15 kg.......  50 kg.......  E........  13, 52, 148
                                                                                     IP4, T3, TP33,
                                                                                     W31, W40.
                Barium alloys,         4.2  UN1854.........  I.........  4.2......  T21, TP7, TP33,  None........  181........  None.......  Forbidden...  Forbidden...  D........  13, 148
                 pyrophoric.                                                         W31.
 
                                                                                          * * * * * * *
                Barium azide,          4.1  UN1571.........  I.........  4.1, 6.1.  162, A2, W31...  None........  182........  None.......  Forbidden...  0.5 kg......  D........  28, 36
                 wetted with not
                 less than 50
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Barium cyanide..       6.1  UN1565.........  I.........  6.1......  IB7, IP1, N74,   None........  211........  242........  5 kg........  50 kg.......  A........  40, 52
                                                                                     N75, T6, TP33,
                                                                                     W31.
 
                                                                                          * * * * * * *
                Barium peroxide.       5.1  UN1449.........  II........  5.1, 6.1.  A9, IB6, IP2,    152.........  212........  242........  5 kg........  25 kg.......  C........  13, 52, 66,
                                                                                     T3, TP33, W100.                                                                                 75, 148
 
                                                                                          * * * * * * *
                Beryllium,             6.1  UN1567.........  II........  6.1, 4.1.  IB8, IP2, IP4,   153.........  212........  242........  15 kg.......  50 kg.......  A........  13, 147, 148
                 powder.                                                             T3, TP33, W100.
                Bicyclo [2,2,1]          3  UN2251.........  II........  3........  387, IB2, T7,    150.........  202........  242........  5 L.........  60 L........  D........  25
                 hepta-2,5-                                                          TP2.
                 diene,
                 stabilized or
                 2,5-
                 Norbornadiene,
                 stabilized.
 
                                                                                          * * * * * * *
                Boron                    8  UN2604.........  I.........  8, 3.....  A3, A19, T10,    None........  201........  243........  0.5 L.......  2.5 L.......  D........  40
                 trifluoride                                                         TP2, W31.
                 diethyl
                 etherate.
 
                                                                                          * * * * * * *
                Boron                  4.3  UN2965.........  I.........  4.3, 8, 3  A19, T10, TP2,   None........  201........  243........  Forbidden...  1 L.........  D........  21, 25, 40,
                 trifluoride                                                         TP7, TP13, W31.                                                                                 49, 100
                 dimethyl
                 etherate.
 

[[Page 61787]]

 
                                                                                          * * * * * * *
                Bromobenzyl            6.1  UN1694.........  I.........  6.1......  T14, TP2, TP13,  None........  201........  243........  Forbidden...  30 L........  D........  12, 25, 40,
                 cyanides,                                                           W31.                                                                                            52
                 liquid.
                Bromobenzyl            6.1  UN3449.........  I.........  6.1......  T6, TP33, W31..  None........  211........  242........  5 kg........  50 kg.......  D........  12, 25, 40,
                 cyanides, solid.                                                                                                                                                    52
 
                                                                                          * * * * * * *
                Butadienes,            2.1  UN1010.........  ..........  2.1......  387, T50.......  306.........  304........  314, 315...  Forbidden...  150 kg......  B........  25, 40
                 stabilized or
                 Butadienes and
                 Hydrocarbon
                 mixture,
                 stabilized
                 containing more
                 than 40%
                 butadienes.
 
                                                                                          * * * * * * *
                Butyl acrylates,         3  UN2348.........  III.......  3........  387, B1, IB3,    150.........  203........  242........  60 L........  220 L.......  C........  25
                 stabilized.                                                         T2, TP1.
 
                                                                                          * * * * * * *
                Butyl benzenes..         3  UN2709.........  III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                                                                                     TP2.
 
                                                                                          * * * * * * *
                n-Butyl                  3  UN2227.........  III.......  3........  387, B1, IB3,    150.........  203........  242........  60 L........  220 L.......  C........  25
                 methacrylate,                                                       T2, TP1.
                 stabilized.
 
                                                                                          * * * * * * *
                Butyl vinyl              3  UN2352.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25, 40
                 ether,                                                              TP1.
                 stabilized.
 
                                                                                          * * * * * * *
                1,2-Butylene             3  UN3022.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25, 27, 49
                 oxide,                                                              TP1.
                 stabilized.
 
                                                                                          * * * * * * *
                Calcium.........       4.3  UN1401.........  II........  4.3......  IB7, IP2, IP4,   151.........  212........  241........  15 kg.......  50kg........  E........  13, 52, 148
                                                                                     T3, TP33, W31,
                                                                                     W40.
 
                                                                                          * * * * * * *
                Calcium carbide.       4.3  UN1402.........  I.........  4.3......  A1, A8, B55,     None........  211........  242........  Forbidden...  15 kg.......  B........  13, 52, 148
                                                                                     B59, IB4, IP1,
                                                                                     N34, T9, TP7,
                                                                                     TP33, W32.
                                                             II........  4.3......  A1, A8, B55,     151.........  212........  241........  15 kg.......  50 kg.......  B........  13, 52, 148
                                                                                     B59, IB7, IP2,
                                                                                     IP4, N34, T3,
                                                                                     TP33, W31, W40.
 
                                                                                          * * * * * * *
                Calcium                4.3  UN1403.........  III.......  4.3......  A1, A19, IB8,    151.........  213........  241........  25 kg.......  100 kg......  A........  13, 52, 148
                 cyanamide with                                                      IP4, T1, TP33,
                 more than 0.1                                                       W31, W40.
                 percent of
                 calcium carbide.
                Calcium cyanide.       6.1  UN1575.........  I.........  6.1......  IB7, IP1, N79,   None........  211........  242........  5 kg........  50 kg.......  A........  40, 52
                                                                                     N80, T6, TP33,
                                                                                     W31.
                Calcium                4.2  UN1923.........  II........  4.2......  A19, A20, IB6,   None........  212........  241........  15 kg.......  50 kg.......  E........  13
                 dithionite or                                                       IP2, T3, TP33,
                 Calcium                                                             W31.
                 hydrosulfite.
                Calcium hydride.       4.3  UN1404.........  I.........  4.3......  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
 
                                                                                          * * * * * * *
                Calcium                4.3  UN2844.........  III.......  4.3......  A1, A19, IB8,    151.........  213........  241........  25 kg.......  100 kg......  A........  13, 52, 85,
                 manganese                                                           IP4, T1, TP33,                                                                                  103, 148
                 silicon.                                                            W31.
 
                                                                                          * * * * * * *
                Calcium peroxide       5.1  UN1457.........  II........  5.1......  IB6, IP2, T3,    152.........  212........  242........  5 kg........  25 kg.......  C........  13, 52, 66,
                                                                                     TP33, W100.                                                                                     75, 148
                Calcium                4.3  UN1360.........  I.........  4.3, 6.1.  A8, A19, N40,    None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 52,
                 phosphide.                                                          W32.                                                                                            85, 148
                Calcium,               4.2  UN1855.........  I.........  4.2......  W31............  None........  187........  None.......  Forbidden...  Forbidden...  D........  13, 148
                 pyrophoric or
                 Calcium alloys,
                 pyrophoric.
 
                                                                                          * * * * * * *
                Calcium silicide       4.3  UN1405.........  II........  4.3......  A19, IB7, IP2,   151.........  212........  241........  15 kg.......  50 kg.......  B........  13, 52, 85,
                                                                                     IP4, T3, TP33,                                                                                  103, 148
                                                                                     W31.
                                                             III.......  4.3......  A1, A19, IB8,    151.........  213........  241........  25 kg.......  100 kg......  B........  13, 52, 85,
                                                                                     IP4, T1, TP33,                                                                                  103, 148
                                                                                     W31, W40.
 

[[Page 61788]]

 
                                                                                          * * * * * * *
I.............  Carbon,                4.2  UN1362.........  III.......  4.2......  IB8, IP3, T1,    None........  213........  241........  0.5 kg......  0.5 kg......  A........  12, 25
                 activated.                                                          TP33, W31.
 
                                                                                          * * * * * * *
                Carbon disulfide         3  UN1131.........  I.........  3, 6.1...  B16, T14, TP2,   None........  201........  243........  Forbidden...  Forbidden...  D........  40, 78, 115
                                                                                     TP7, TP13, W31.
 
                                                                                          * * * * * * *
                Cerium, slabs,         4.1  UN1333.........  II........  4.1......  IB8, IP2, IP4,   None........  212........  240........  15 kg.......  50 kg.......  A........  13, 74, 91,
                 ingots, or rods.                                                    N34, W100.                                                                                      147, 148
                Cerium, turnings       4.3  UN3078.........  II........  4.3......  A1, IB7, IP2,    151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 52, 148
                 or gritty                                                           IP4, T3, TP33,
                 powder.                                                             W31, W40.
                Cesium or              4.3  UN1407.........  I.........  4.3......  A7, A19, IB4,    None........  211........  242........  Forbidden...  15 kg.......  D........  13, 52, 148
                 Caesium.                                                            IP1, N34, N40,
                                                                                     W32.
 
                                                                                          * * * * * * *
                Chloric acid           5.1  UN2626.........  II........  5.1......  IB2, T4, TP1,    None........  229........  None.......  Forbidden...  Forbidden...  D........  56, 58
                 aqueous                                                             W31.
                 solution, with
                 not more than
                 10 percent
                 chloric acid.
 
                                                                                          * * * * * * *
                Chloroprene,             3  UN1991.........  I.........  3, 6.1...  387, B57, T14,   None........  201........  243........  Forbidden...  30 L........  D........  25, 40
                 stabilized.                                                         TP2, TP13.
 
                                                                                          * * * * * * *
                Chlorosilanes,         4.3  UN2988.........  I.........  4.3, 3, 8  A2, T14, TP2,    None........  201........  244........  Forbidden...  1 L.........  D........  13, 21, 40,
                 water-reactive,                                                     TP7, TP13, W31.                                                                                 49, 100,
                 flammable,                                                                                                                                                          147, 148
                 corrosive,
                 n.o.s.
 
                                                                                          * * * * * * *
                Chromium               5.1  UN1463.........  II........  5.1, 6.1,  IB8, IP2, IP4,   None........  212........  242........  5 kg........  25 kg.......  A........  66, 90
                 trioxide,                                                8.         T3, TP33, W31.
                 anhydrous.
 
                                                                                          * * * * * * *
G.............  Corrosive                8  UN3096.........  I.........  8, 4.3...  IB4, IP1, T6,    None........  211........  243........  1 kg........  25 kg.......  D........  13, 148
                 solids, water-                                                      TP33.
                 reactive, n.o.s.
                                                             II........  8, 4.3...  IB6, IP2, T3,    None........  212........  242........  15 kg.......  50 kg.......  D........  13, 148
                                                                                     TP33, W100.
 
                                                                                          * * * * * * *
                Crotonaldehyde         6.1  UN1143.........  I.........  6.1, 3...  2, 175, 387,     None........  227........  244........  Forbidden...  Forbidden...  D........  25, 40
                 or                                                                  B9, B14, B32,
                 Crotonaldehyde,                                                     B77, T20, TP2,
                 stabilized.                                                         TP13, TP38,
                                                                                     TP45.
 
                                                                                          * * * * * * *
                Cyanogen bromide       6.1  UN1889.........  I.........  6.1, 8...  A6, A8, T6,      None........  211........  242........  1 kg........  15 kg.......  D........  40, 52
                                                                                     TP33, W31.
                Cyanogen               2.3  UN1589.........  ..........  2.3, 8...  1, 387.........  None........  192........  245........  Forbidden...  Forbidden...  D........  25, 40
                 chloride,
                 stabilized.
 
                                                                                          * * * * * * *
                Cycloheptane....         3  UN2241.........  II........  3........  IB2, T4, TP2...  150.........  202........  242........  5 L.........  60 L........  B........  40
 
                                                                                          * * * * * * *
                Decaborane......       4.1  UN1868.........  II........  4.1, 6.1.  A19, A20, IB6,   None........  212........  None.......  Forbidden...  50 kg.......  A........  74
                                                                                     IP2, T3, TP33,
                                                                                     W31.

[[Page 61789]]

 
 
                                                                                          * * * * * * *
                Diketene,              6.1  UN2521.........  I.........  6.1, 3...  2, 387, B9,      None........  227........  244........  Forbidden...  Forbidden...  D........  25, 26, 27,
                 stabilized.                                                         B14, B32, T20,                                                                                  40
                                                                                     TP2, TP13,
                                                                                     TP38, TP45.
 
                                                                                          * * * * * * *
                Dinitrophenol,         4.1  UN1320.........  I.........  4.1, 6.1.  23, A8, A19,     None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 wetted with not                                                     A20, N41, W31.
                 less than 15
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Dinitrophenolate       4.1  UN1321.........  I.........  4.1, 6.1.  23, A8, A19,     None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 s, wetted with                                                      A20, N41, W31.
                 not less than
                 15 percent
                 water, by mass.
 
                                                                                          * * * * * * *
                Dinitroresorcino       4.1  UN1322.........  I.........  4.1......  23, A8, A19,     None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 l, wetted with                                                      A20, N41, W31.
                 not less than
                 15 percent
                 water, by mass.
 
                                                                                          * * * * * * *
                Diphenylamine          6.1  UN1698.........  I.........  6.1......  T6, TP33, W31..  None........  201........  None.......  Forbidden...  Forbidden...  D........  40
                 chloroarsine.
                Diphenylchloroar       6.1  UN1699.........  I.........  6.1......  A8, B14, B32,    None........  201........  243........  Forbidden...  30 L........  D........  40
                 sine, liquid.                                                       N33, N34, T14,
                                                                                     TP2, TP13,
                                                                                     TP27, W31.
                Diphenylchloroar       6.1  UN3450.........  I.........  6.1......  IB7, IP1, T6,    None........  211........  242........  5 kg........  50 kg.......  D........  40
                 sine, solid.                                                        TP33, W31.
 
                                                                                          * * * * * * *
                Dipicryl               4.1  UN2852.........  I.........  4.1......  162, A2, N41,    None........  211........  None.......  Forbidden...  0.5 kg......  D........  28, 36
                 sulfide, wetted                                                     N84, W31.
                 with not less
                 than 10 percent
                 water, by mass.
 
                                                                                          * * * * * * *
                Dipropylamine...         3  UN2383.........  II........  3, 8.....  387, IB2, T7,    150.........  202........  243........  1 L.........  5 L.........  B........  25
                                                                                     TP1.
 
                                                                                          * * * * * * *
                Divinyl ether,           3  UN1167.........  I.........  3........  387, A7, T11,    None........  201........  243........  1 L.........  30 L........  E........  25, 40
                 stabilized.                                                         TP2.
 
                                                                                          * * * * * * *
                Ethyl acrylate,          3  UN1917.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25, 40
                 stabilized.                                                         TP1, TP13.
 
                                                                                          * * * * * * *
                Ethyl                    3  UN2277.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25
                 methacrylate,                                                       TP1.
                 stabilized.
 
                                                                                          * * * * * * *
                Ethylacetylene,        2.1  UN2452.........  ..........  2.1......  387, N88.......  None........  304........  314, 315...  Forbidden...  150 kg......  B........  25, 40
                 stabilized.
 
                                                                                          * * * * * * *
                Ethyldichlorosil       4.3  UN1183.........  I.........  4.3, 8, 3  A2, A3, A7,      None........  201........  244........  Forbidden...  1 L.........  D........  21, 40, 49,
                 ane.                                                                N34, T14, TP2,                                                                                  100
                                                                                     TP7, TP13, W31.
 
                                                                                          * * * * * * *
                Ethyleneimine,         6.1  UN1185.........  I.........  6.1, 3...  1, 387, B9,      None........  226........  244........  Forbidden...  Forbidden...  D........  25, 40
                 stabilized.                                                         B14, B30, B77,
                                                                                     N25, N32, T22,
                                                                                     TP2, TP13,
                                                                                     TP38, TP44.
 
                                                                                          * * * * * * *
                Ferrocerium.....       4.1  UN1323.........  II........  4.1......  59, A19, IB8,    151.........  212........  240........  15 kg.......  50 kg.......  A........  13, 147, 148
                                                                                     IP2, IP4, T3,
                                                                                     TP33, W100.
                Ferrosilicon           4.3  UN1408.........  III.......  4.3, 6.1.  A1, A19, B6,     151.........  213........  240........  25 kg.......  100 kg......  A........  13, 40, 52,
                 with 30 percent                                                     IB8, IP4, IP7,                                                                                  53, 85,
                 or more but                                                         T1, TP33, W100.                                                                                 103, 148
                 less than 90
                 percent silicon.
 

[[Page 61790]]

 
                                                                                          * * * * * * *
                Ferrous metal          4.2  UN2793.........  III.......  4.2......  A1, A19, B134,   None........  213........  241........  25 kg.......  100 kg......  A........  13, 148
                 borings or                                                          IB8, IP4, IP7,
                 Ferrous metal                                                       W100.
                 shavings or
                 Ferrous metal
                 turnings or
                 Ferrous metal
                 cuttings in a
                 form liable to
                 self-heating.
 
                                                                                          * * * * * * *
A W...........  Fibers or              4.2  UN1373.........  III.......  4.2......  137, IB8, IP3,   None........  213........  241........  Forbidden...  Forbidden...  A........
                 Fabrics, animal                                                     T1, TP33, W31.
                 or vegetable or
                 Synthetic,
                 n.o.s. with
                 animal or
                 vegetable oil.
 
                                                                                          * * * * * * *
                Fish meal,             4.2  UN1374.........  II........  4.2......  155, A1, A19,    None........  212........  241........  Forbidden...  Forbidden...  B........  18, 25, 128
                 unstablized or                                                      IB8, IP2, IP4,
                 Fish scrap,                                                         T3, TP33, W31,
                 unstabilized.                                                       W40.
 
                                                                                          * * * * * * *
                Hafnium powder,        4.2  UN2545.........  I.........  4.2......  W31............  None........  211........  242........  Forbidden...  Forbidden...  D........  13, 148
                 dry.
                                                             II........  4.2......  A19, A20, IB6,   None........  212........  241........  15 kg.......  50 kg.......  D........  13, 148
                                                                                     IP2, N34, T3,
                                                                                     TP33, W31.
                                                             III.......  4.2......  B135, IB8, IP4,  None........  213........  241........  25 kg.......  100 kg......  D........  13, 148
                                                                                     T1, TP33, W31.
                Hafnium powder,        4.1  UN1326.........  II........  4.1......  A6, A19, A20,    None........  212........  241........  15 kg.......  50 kg.......  E........  74
                 wetted with not                                                     IB6, IP2, N34,
                 less than 25                                                        T3, TP33, W31,
                 percent water                                                       W40.
                 (a visible
                 excess of water
                 must be
                 present) (a)
                 mechanically
                 produced,
                 particle size
                 less than 53
                 microns; (b)
                 chemically
                 produced,
                 particle size
                 less than 840
                 microns.
 
                                                                                          * * * * * * *
                Heptanes........         3  UN1206.........  II........  3........  IB2, T4, TP2...  150.........  202........  242........  5 L.........  60 L........  B........
 
                                                                                          * * * * * * *
                Hexanes.........         3  UN1208.........  II........  3........  IB2, T4, TP2...  150.........  202........  242........  5 L.........  60 L........  E........
 
                                                                                          * * * * * * *
                Hydrogen               6.1  UN1051.........  I.........  6.1, 3...  1, 387, B35,     None........  195........  244........  Forbidden...  Forbidden...  D........  25, 40
                 cyanide,                                                            B61, B65, B77,
                 stabilized with                                                     B82.
                 less than 3
                 percent water.
                Hydrogen               6.1  UN1614.........  I.........  6.1......  5, 387.........  None........  195........  None.......  Forbidden...  Forbidden...  D........  25, 40
                 cyanide,
                 stabilized,
                 with less than
                 3 percent water
                 and absorbed in
                 a porous inert
                 material.
 
                                                                                          * * * * * * *
                Iron oxide,            4.2  UN1376.........  III.......  4.2......  B18, B134, IB8,  None........  213........  240........  Forbidden...  Forbidden...  E........  13, 148
                 spent, or Iron                                                      IP4, T1, TP33,
                 sponge, spent                                                       W100.
                 obtained from
                 coal gas
                 purification.
 
                                                                                          * * * * * * *
                Isobutyl                 3  UN2527.........  III.......  3........  387, B1, IB3,    150.........  203........  242........  60 L........  220 L.......  C........  25
                 acrylate,                                                           T2, TP1.
                 stabilized.
 
                                                                                          * * * * * * *
                Isobutyl                 3  UN2283.........  III.......  3........  387, B1, IB3,    150.........  203........  242........  60 L........  220 L.......  C........  25
                 methacrylate,                                                       T2, TP1.
                 stabilized.
 

[[Page 61791]]

 
                                                                                          * * * * * * *
G.............  Isocyanates,             3  UN2478.........  II........  3, 6.1...  5, A3, A7, IB2,  150.........  202........  243........  1 L.........  60 L........  D........  40
                 flammable,                                                          T11, TP2,
                 toxic, n.o.s.                                                       TP13, TP27,
                 or Isocyanate                                                       W31.
                 solutions,
                 flammable,
                 toxic, n.o.s.
                 flash point
                 less than 23
                 degrees C.
                                                             III.......  3, 6.1...  5, A3, A7, IB3,  150.........  203........  242........  60 L........  220 L.......  A.
                                                                                     T7, TP1, TP13,
                                                                                     TP28, W31.
 
                                                                                          * * * * * * *
                Isoprene,                3  UN1218.........  I.........  3........  387, T11, TP2..  150.........  201........  243........  1 L.........  30 L........  D........  25
                 stabilized.
 
                                                                                          * * * * * * *
                Life-saving              9  UN3072.........  ..........  None.....  182............  None........  219........  None.......  No limit....  No limit....  A........  122
                 appliances, not
                 self inflating
                 containing
                 dangerous goods
                 as equipment.
 
                                                                                          * * * * * * *
                Lithium.........       4.3  UN1415.........  I.........  4.3......  A7, A19, IB4,    151.........  211........  244........  Forbidden...  15 kg.......  D........  13, 52, 148
                                                                                     IP1, N45, T9,
                                                                                     TP7, TP33, W32.
 
                                                                                          * * * * * * *
                Lithium aluminum       4.3  UN1410.........  I.........  4.3......  A19, W32.......  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
                 hydride.
 
                                                                                          * * * * * * *
                Lithium                4.3  UN1413.........  I.........  4.3......  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
                 borohydride.
                Lithium                4.3  UN2830.........  II........  4.3......  A19, IB7, IP2,   151.........  212........  241........  15 kg.......  50 kg.......  E........  13, 40, 85,
                 ferrosilicon.                                                       IP4, T3, TP33,                                                                                  103, 148
                                                                                     W31, W40.
                Lithium hydride.       4.3  UN1414.........  I.........  4.3......  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
                Lithium hydride,       4.3  UN2805.........  II........  4.3......  A8, A19, A20,    151.........  212........  241........  15 kg.......  50 kg.......  E........  13, 52, 148
                 fused solid.                                                        IB4, T3, TP33,
                                                                                     W31, W40.
 
                                                                                          * * * * * * *
                Lithium ion              9  UN3480.........  ..........  9........  422, A51, A54..  185.........  185........  185........  5 kg........  35 kg.......  A.
                 batteries
                 including
                 lithium ion
                 polymer
                 batteries.
                Lithium ion              9  UN3481.........  ..........  9........  181, 422, A54..  185.........  185........  185........  5 kg........  35 kg.......  A.         ............
                 batteries
                 contained in
                 equipment
                 including
                 lithium ion
                 polymer
                 batteries.
                Lithium ion              9  UN3481.........  ..........  9........  181, 422, A54..  185.........  185........  185........  5 kg........  35 kg.......  A.
                 batteries
                 packed with
                 equipment
                 including
                 lithium ion
                 polymer
                 batteries.
                Lithium metal            9  UN3090.........  ..........  9........  422, A54.......  185.........  185........  185........  Forbidden...  35 kg.......  A.
                 batteries
                 including
                 lithium alloy
                 batteries.
                Lithium metal            9  UN3091.........  ..........  9........  181, 422, A54,   185.........  185........  185........  5 kg........  35 kg.......  A.
                 batteries                                                           A101.
                 contained in
                 equipment
                 including
                 lithium alloy
                 batteries.
                Lithium metal            9  UN3091.........  ..........  9........  181, 422, A54..  185.........  185........  185........  5 kg........  35 kg.......  A.
                 batteries
                 packed with
                 equipment
                 including
                 lithium alloy
                 batteries.
 
                                                                                          * * * * * * *
                Lithium nitride.       4.3  UN2806.........  I.........  4.3......  A19, IB4, IP1,   None........  211........  242........  Forbidden...  15 kg.......  E.
                                                                                     N40, W32.
                Lithium peroxide       5.1  UN1472.........  II........  5.1......  A9, IB6, IP2,    152.........  212........  None.......  5 kg........  25 kg.......  C........  13, 52, 66,
                                                                                     N34, T3, TP33,                                                                                  75, 148
                                                                                     W100.
                Lithium silicon.       4.3  UN1417.........  II........  4.3......  A19, A20, IB7,   151.........  212........  241........  15 kg.......  50 kg.......  A........  13, 85, 103,
                                                                                     IP2, IP4, T3,                                                                                   148
                                                                                     TP33, W31, W40.
 
                                                                                          * * * * * * *
                Magnesium              4.3  UN1419.........  I.........  4.3, 6.1.  A19, N34, N40,   None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 52,
                 aluminum                                                            W32.                                                                                            85, 148
                 phosphide.
 

[[Page 61792]]

 
                                                                                          * * * * * * *
                Magnesium              4.2  UN2004.........  II........  4.2......  A8, A19, A20,    None........  212........  241........  15 kg.......  50 kg.......  C........  13, 148
                 diamide.                                                            IB6, T3, TP33,
                                                                                     W31.
 
                                                                                          * * * * * * *
                Magnesium              4.3  UN2950.........  III.......  4.3......  A1, A19, IB8,    151.........  213........  240........  25 kg.......  100 kg......  A........  13, 52, 148
                 granules,                                                           IP4, T1, TP33,
                 coated,                                                             W100.
                 particle size
                 not less than
                 149 microns.
                Magnesium              4.3  UN2010.........  I.........  4.3......  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
                 hydride.
                Magnesium or           4.1  UN1869.........  III.......  4.1......  A1, B134, IB8,   151.........  213........  240........  25 kg.......  100 kg......  A........  13, 39, 52,
                 Magnesium                                                           IP4, T1, TP33,                                                                                  53, 74,
                 alloys with                                                         W100.                                                                                           101, 147,
                 more than 50                                                                                                                                                        148
                 percent
                 magnesium in
                 pellets,
                 turnings or
                 ribbons.
 
                                                                                          * * * * * * *
                Magnesium              5.1  UN1476.........  II........  5.1......  IB6, IP2, T3,    152.........  212........  242........  5 kg........  25 kg.......  C........  13, 52, 66,
                 peroxide.                                                           TP33, W100.                                                                                     75, 148
                Magnesium              4.3  UN2011.........  I.........  4.3, 6.1.  A19, N40, W32..  None........  211........  None.......  Forbidden...  15 kg.......  E........  13, 40, 52,
                 phosphide.                                                                                                                                                          85, 148
                Magnesium,             4.3  UN1418.........  I.........  4.3, 4.2.  A19, B56, W32..  None........  211........  244........  Forbidden...  15 kg.......  A........  13, 39, 52,
                 powder or                                                                                                                                                           148
                 Magnesium
                 alloys, powder.
                                                             II........  4.3, 4.2.  A19, B56, IB5,   None........  212........  241........  15 kg.......  50 kg.......  A........  13, 39, 52,
                                                                                     IP2, T3, TP33,                                                                                  148
                                                                                     W31, W40.
                                                             III.......  4.3, 4.2.  A19, B56, IB8,   None........  213........  241........  25 kg.......  100 kg......  A........  13, 39, 52,
                                                                                     IP4, T1, TP33,                                                                                  148
                                                                                     W31.
 
                                                                                          * * * * * * *
                Magnesium              4.3  UN2624.........  II........  4.3......  A19, A20, IB7,   151.........  212........  241........  15 kg.......  50 kg.......  B........  13, 85, 103,
                 silicide.                                                           IP2, IP4, T3,                                                                                   148
                                                                                     TP33, W31, W40.
 
                                                                                          * * * * * * *
                Maneb or Maneb         4.2  UN2210.........  III.......  4.2, 4.3.  57, A1, A19,     None........  213........  242........  25 kg.......  100 kg......  A........  13, 34, 148
                 preparations                                                        IB6, T1, TP33,
                 with not less                                                       W100.
                 than 60 percent
                 maneb.
                Maneb stabilized       4.3  UN2968.........  III.......  4.3......  54, A1, A19,     151.........  213........  242........  25 kg.......  100 kg......  B........  13, 25, 34,
                 or Maneb                                                            IB8, IP4, T1,                                                                                   52, 148
                 preparations,                                                       TP33, W100.
                 stabilized
                 against self-
                 heating.
 
                                                                                          * * * * * * *
+.............  Mercuric               6.1  UN1626.........  I.........  6.1......  IB7, IP1, N74,   None........  211........  242........  5 kg........  50 kg.......  A........  52
                 potassium                                                           N75, T6, TP33,
                 cyanide.                                                            W31.
 
                                                                                          * * * * * * *
G.............  Metal catalyst,        4.2  UN2881.........  I.........  4.2......  N34, T21, TP7,   None........  187........  None.......  Forbidden...  Forbidden...  C........  13, 147, 148
                 dry.                                                                TP33, W31.
                                                             II........  4.2......  IB6, IP2, N34,   None........  187........  242........  Forbidden...  50 kg.......  C........  13, 147, 148
                                                                                     T3, TP33, W31.
                                                             III.......  4.2......  B135, IB8, IP4,  None........  187........  241........  25 kg.......  100 kg......  C........  13, 147, 148
                                                                                     N34, T1, TP33,
                                                                                     W31.
G.............  Metal catalyst,        4.2  UN1378.........  II........  4.2......  A2, A8, IB1,     None........  212........  None.......  Forbidden...  50 kg.......  C.
                 wetted with a                                                       N34, T3, TP33,
                 visible excess                                                      W31, W40.
                 of liquid.
                Metal hydrides,        4.1  UN3182.........  II........  4.1......  A1, IB4, T3,     151.........  212........  240........  15 kg.......  50 kg.......  E.
                 flammable,                                                          TP33, W31, W40.
                 n.o.s.
                                                             III.......  4.1......  A1, IB4, T1,     151.........  213........  240........  25 kg.......  100 kg......  E.
                                                                                     TP33, W31.

[[Page 61793]]

 
                Metal hydrides,        4.3  UN1409.........  I.........  4.3......  A19, N34, N40,   None........  211........  242........  Forbidden...  15 kg.......  D........  13, 52, 148
                 water reactive,                                                     W32.
                 n.o.s.
                                                             II........  4.3......  A19, IB4, N34,   151.........  212........  242........  15 kg.......  50 kg.......  D........  13, 52, 148
                                                                                     N40, T3, TP33,
                                                                                     W31, W40.
                Metal powder,          4.2  UN3189.........  II........  4.2......  IB6, IP2, T3,    None........  212........  241........  15 kg.......  50 kg.......  C........  13, 148
                 self-heating,                                                       TP33, W31.
                 n.o.s.
                                                             III.......  4.2......  B135, IB8, IP4,  None........  213........  241........  25 kg.......  100 kg......  C........  13, 148
                                                                                     T1, TP33, W31.
                Metal powders,         4.1  UN3089.........  II........  4.1......  IB8, IP2, IP4,   151.........  212........  240........  15 kg.......  50 kg.......  B........  13, 74, 147,
                 flammable,                                                          T3, TP33, W100.                                                                                 148
                 n.o.s.
                                                             III.......  4.1......  IB8, IP2, IP4,   151.........  213........  240........  25 kg.......  100 kg......  B........  13, 74, 147,
                                                                                     T1, TP33, W100.                                                                                 148
 
                                                                                          * * * * * * *
G.............  Metal salts of         4.1  UN3181.........  II........  4.1......  A1, IB8, IP2,    151.........  212........  240........  15 kg.......  50 kg.......  B........  40
                 organic                                                             IP4, T3, TP33,
                 compounds,                                                          W31.
                 flammable,
                 n.o.s.
                                                             III.......  4.1......  A1, IB8, IP3,    151.........  213........  240........  25 kg.......  100 kg......  B........  40
                                                                                     T1, TP33, W31.
 
                                                                                          * * * * * * *
G.............  Metallic               4.3  UN3208.........  I.........  4.3......  A7, IB4, W32...  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 148
                 substance,
                 water-reactive,
                 n.o.s.
                                                             II........  4.3......  A7, IB7, IP2,    151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 40, 148
                                                                                     IP4, T3, TP33,
                                                                                     W31.
                                                             III.......  4.3......  A7, IB8, IP4,    151.........  213........  241........  25 kg.......  100 kg......  E........  13, 40, 148
                                                                                     T1, TP33, W31,
                                                                                     W40.
G.............  Metallic               4.3  UN3209.........  I.........  4.3, 4.2.  A7, W32........  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 148
                 substance,
                 water-reactive,
                 self-heating,
                 n.o.s.
                                                             II........  4.3, 4.2.  A7, IB5, IP2,    None........  212........  242........  15 kg.......  50 kg.......  E........  13, 40, 148
                                                                                     T3, TP33, W32,
                                                                                     W40.
                                                             III.......  4.3, 4.2.  A7, IB8, IP4,    None........  213........  242........  25 kg.......  100 kg......  E........  13, 40, 148
                                                                                     T1, TP33, W32.
                Methacrylaldehyd         3  UN2396.........  II........  3, 6.1...  45, 387, IB2,    150.........  202........  243........  1 L.........  60 L........  D........  25, 40
                 e, stabilized.                                                      T7, TP1, TP13.
                Methacrylic              8  UN2531.........  II........  8........  41, 387, IB2,    154.........  202........  242........  1 L.........  30 L........  C........  25, 40
                 acid,                                                               T7, TP1, TP18,
                 stabilized.                                                         TP30.
+.............  Methacrylonitril       6.1  UN3079.........  I.........  6.1, 3...  2, 387, B9,      None........  227........  244........  Forbidden...  Forbidden...  D........  12, 25, 40
                 e, stabilized.                                                      B14, B32, T20,
                                                                                     TP2, TP13,
                                                                                     TP38, TP45.
 
                                                                                          * * * * * * *
                Methyl acetylene       2.1  UN1060.........  ..........  2.1......  387, N88, T50..  306.........  304........  314, 315...  Forbidden...  150 kg......  B........  25, 40
                 and propadiene
                 mixtures,
                 stabilized.
                Methyl acrylate,         3  UN1919.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25
                 stabilized.                                                         TP1, TP13.
 
                                                                                          * * * * * * *
                Methyl                   3  UN1246.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25
                 isopropenyl                                                         TP1.
                 ketone,
                 stabilized.
 
                                                                                          * * * * * * *
                Methyl                   3  UN1247.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25, 40
                 methacrylate                                                        TP1.
                 monomer,
                 stabilized.
 
                                                                                          * * * * * * *
                Methyl vinyl           6.1  UN1251.........  I.........  6.1, 3, 8  1, 387, B9,      None........  226........  244........  Forbidden...  Forbidden...  B........  21, 25, 40,
                 ketone,                                                             B14, B30, T22,                                                                                  100
                 stabilized.                                                         TP2, TP13,
                                                                                     TP38, TP44.
 
                                                                                          * * * * * * *
                N-Methylaniline.       6.1  UN2294.........  III.......  6.1......  IB3, T4, TP2...  153.........  203........  241........  60 L........  220 L.......  A.
 
                                                                                          * * * * * * *
                Methylcyclohexan         3  UN2296.........  II........  3........  B1, IB2, T4,     150.........  202........  242........  5 L.........  60 L........  B.
                 e.                                                                  TP2.
 

[[Page 61794]]

 
                                                                                          * * * * * * *
                Methyldichlorosi       4.3  UN1242.........  I.........  4.3, 8, 3  A2, A3, A7, B6,  None........  201........  243........  Forbidden...  1 L.........  D........  21, 40, 49,
                 lane.                                                               B77, N34, T14,                                                                                  100
                                                                                     TP2, TP7,
                                                                                     TP13, W31.
                Nitric acid              8  UN2031.........  II........  8........  A6, A212, B2,    None........  158........  242........  Forbidden...  30 L........  D........  44, 66, 74,
                 other than red                                                      B47, B53, IB2,                                                                                  89, 90
                 fuming, with                                                        IP15, T8, TP2.
                 more than 20
                 percent and
                 less than 65
                 percent nitric
                 acid.
 
                                                                                          * * * * * * *
                Nitrocellulose,        4.1  UN2557.........  II........  4.1......  44, W31........  151.........  212........  240........  1 kg........  15 kg.......  D........  28, 36
                 with not more
                 than 12.6
                 percent
                 nitrogen, by
                 dry mass
                 mixture with or
                 without
                 plasticizer,
                 with or without
                 pigment.
 
                                                                                          * * * * * * *
                Nitrocellulose         4.1  UN2556.........  II........  4.1......  W31............  151.........  212........  None.......  1 kg........  15 kg.......  D........  28, 36
                 with alcohol
                 with not less
                 than 25 percent
                 alcohol by
                 mass, and with
                 not more than
                 12.6 percent
                 nitrogen, by
                 dry mass.
                Nitrocellulose         4.1  UN2555.........  II........  4.1......  W31............  151.........  212........  None.......  15 kg.......  50 kg.......  E........  28, 36
                 with water with
                 not less than
                 25 percent
                 water by mass.
 
                                                                                          * * * * * * *
                Nitroguanidine,        4.1  UN1336.........  I.........  4.1......  23, A8, A19,     None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 wetted or                                                           A20, N41, W31.
                 Picrite, wetted
                 with not less
                 than 20 percent
                 water, by mass.
 
                                                                                          * * * * * * *
                4[dash]Nitrophen       4.1  UN3376.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  Forbidden...  15 kg.......  E........  28, 36
                 ylhydrazine,                                                        A20, N41, W31.
                 with not less
                 than 30 percent
                 water, by mass.
 
                                                                                          * * * * * * *
                Nitrostarch,           4.1  UN1337.........  I.........  4.1......  23, A8, A19,     None........  211........  None.......  1 kg........  15 kg.......  D........  28, 36
                 wetted with not                                                     A20, N41, W31.
                 less than 20
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Nonanes.........         3  UN1920.........  III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                                                                                     TP2.
 
                                                                                          * * * * * * *
                Octanes.........         3  UN1262.........  II........  3........  IB2, T4, TP2...  150.........  202........  242........  5 L.........  60 L........  B.
 
                                                                                          * * * * * * *
G.............  Organometallic         4.3  UN3398.........  I.........  4.3......  T13, TP2, TP7,   None........  201........  244........  Forbidden...  1 L.........  D........  13, 40, 52,
                 substance,                                                          TP36, TP47,                                                                                     148
                 liquid, water-                                                      W31.
                 reactive.
                                                             II........  4.3......  IB1, IP2, T7,    None........  202........  243........  1 L.........  5 L.........  D........  13, 40, 52,
                                                                                     TP2, TP7,                                                                                       148
                                                                                     TP36, TP47,
                                                                                     W31.
                                                             III.......  4.3......  IB2, IP4, T7,    None........  203........  242........  5 L.........  60 L........  E........  13, 40, 52,
                                                                                     TP2, TP7,                                                                                       148
                                                                                     TP36, TP47,
                                                                                     W31.

[[Page 61795]]

 
G.............  Organometallic         4.3  UN3399.........  I.........  4.3, 3...  T13, TP2, TP7,   None........  201........  244........  Forbidden...  1 L.........  D........  13, 40, 52,
                 substance,                                                          TP36, TP47,                                                                                     148
                 liquid, water-                                                      W31.
                 reactive,
                 flammable.
                                                             II........  4.3, 3...  IB1, IP2, T7,    None........  202........  243........  1 L.........  5 L.........  D........  13, 40, 52,
                                                                                     TP2, TP7,                                                                                       148
                                                                                     TP36, TP47,
                                                                                     W31.
                                                             III.......  4.3, 3...  IB2, IP4, T7,    None........  203........  242........  5 L.........  60 L........  E........  13, 40, 52,
                                                                                     TP2, TP7,                                                                                       148
                                                                                     TP36, TP47,
                                                                                     W31.
 
                                                                                          * * * * * * *
G.............  Organometallic         4.3  UN3395.........  I.........  4.3......  N40, T9, TP7,    None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 52,
                 substance,                                                          TP33, TP36,                                                                                     14
                 solid, water-                                                       TP47, W31.
                 reactive.
                                                             II........  4.3......  IB4, T3, TP33,   151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 40, 52,
                                                                                     TP36, TP47,                                                                                     148
                                                                                     W31.
                                                             III.......  4.3......  IB6, T1, TP33,   151.........  213........  241........  25 kg.......  100 kg......  E........  13, 40, 52,
                                                                                     TP36, TP47,                                                                                     148
                                                                                     W31.
G.............  Organometallic         4.3  UN3396.........  I.........  4.3, 4.1.  N40, T9, TP7,    None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 52,
                 substance,                                                          TP33, TP36,                                                                                     148
                 solid, water-                                                       TP47, W31.
                 reactive,
                 flammable.
                                                             II........  4.3, 4.1.  IB4, T3, TP33,   151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 40, 52,
                                                                                     TP36, TP47,                                                                                     148
                                                                                     W31.
                                                             III.......  4.3, 4.1.  IB6, T1, TP33,   151.........  213........  241........  25 kg.......  100 kg......  E........  13, 40, 52,
                                                                                     TP36, TP47,                                                                                     148
                                                                                     W31.
G.............  Organometallic         4.3  UN3397.........  I.........  4.3, 4.2.  N40, T9, TP7,    None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 52,
                 substance,                                                          TP33, TP36,                                                                                     148
                 solid, water-                                                       TP47, W31.
                 reactive, self-
                 heating.
                                                             II........  4.3, 4.2.  IB4, T3, TP33,   None........  212........  242........  15 kg.......  50 kg.......  E........  13, 40, 52,
                                                                                     TP36, TP47,                                                                                     14
                                                                                     W31.
                                                             III.......  4.3, 4.2.  IB6, T1, TP33,   None........  213........  241........  25 kg.......  100 kg......  E........  13, 40, 52,
                                                                                     TP36, TP47,                                                                                     14
                                                                                     W31.
 
                                                                                          * * * * * * *
                Osmium tetroxide       6.1  UN2471.........  I.........  6.1......  A8, IB7, IP1,    None........  211........  242........  5 kg........  50 kg.......  B........  40
                                                                                     N33, N34, T6,
                                                                                     TP33, W31.
 
                                                                                          * * * * * * *
                Paper,                 4.2  UN1379.........  III.......  4.2......  IB8, IP3, W31..  None........  213........  241........  Forbidden...  Forbidden...  A.
                 unsaturated oil
                 treated
                 incompletely
                 dried
                 (including
                 carbon paper).
 
                                                                                          * * * * * * *
                Peroxides,             5.1  UN1483.........  II........  5.1......  A7, A20, IB6,    None........  212........  242........  5 kg........  25 kg.......  C........  13, 52, 66,
                 inorganic,                                                          IP2, N34, T3,                                                                                   75, 148
                 n.o.s.                                                              TP33, W100.
                                                             III.......  5.1......  A7, A20, B134,   152.........  213........  240........  25 kg.......  100 kg......  C........  13, 52, 66,
                                                                                     IB8, IP4, N34,                                                                                  75, 148
                                                                                     T1, TP33, W100.
 
                                                                                          * * * * * * *
                9-                     4.2  UN2940.........  II........  4.2......  A19, IB6, IP2,   None........  212........  241........  15 kg.......  50 kg.......  A.
                 Phosphabicyclon                                                     T3, TP33, W31.
                 onanes or
                 Cyclooctadiene
                 phosphines.
 
                                                                                          * * * * * * *
                Phosphorus             4.1  UN1339.........  II........  4.1......  A20, IB4, N34,   None........  212........  240........  15 kg.......  50 kg.......  B........  13, 74, 147,
                 heptasulfide,                                                       T3, TP33, W31.                                                                                  148
                 free from
                 yellow or white
                 phosphorus.
 
                                                                                          * * * * * * *
                Phosphorus             4.3  UN1340.........  II........  4.3, 4.1.  A20, B59, IB4,   151.........  212........  242........  15 kg.......  50 kg.......  B........  13, 74, 148
                 pentasulfide,                                                       T3, TP33, W31,
                 free from                                                           W40.
                 yellow or white
                 phosphorus.
 
                                                                                          * * * * * * *
                Phosphorus             4.1  UN1341.........  II........  4.1......  A20, IB4, N34,   None........  212........  240........  15 kg.......  50 kg.......  B........  74
                 sesquisulfide,                                                      T3, TP33, W31.
                 free from
                 yellow or white
                 phosphorus.
 
                                                                                          * * * * * * *
                Phosphorus             4.1  UN1343.........  II........  4.1......  A20, IB4, N34,   None........  212........  240........  15 kg.......  50 kg.......  B........  13, 74, 147,
                 trisulfide,                                                         T3, TP33, W31.                                                                                  148
                 free from
                 yellow or white
                 phosphorus.

[[Page 61796]]

 
                Phosphorus,            4.2  UN1381.........  I.........  4.2, 6.1.  B9, B26, N34,    None........  188........  243........  Forbidden...  Forbidden...  E.
                 white dry or                                                        T9, TP3, TP31,
                 Phosphorus,                                                         W31.
                 white, under
                 water or
                 Phosphorus
                 white, in
                 solution or
                 Phosphorus,
                 yellow dry or
                 Phosphorus,
                 yellow, under
                 water or
                 Phosphorus,
                 yellow, in
                 solution.
 
                                                                                          * * * * * * *
                Pine oil........         3  UN1272.........  III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                                                                                     TP2.
                alpha-Pinene....         3  UN2368.........  III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                                                                                     TP2.
 
                                                                                          * * * * * * *
                Polyhalogenated          9  UN3151.........  II........  9........  IB2............  155.........  204........  241........  100 L.......  220 L.......  A........  95
                 biphenyls,
                 liquid or
                 Halogenated
                 monomethyldiphe
                 nyl-methanes,
                 liquid or
                 Polyhalogenated
                 terphenyls,
                 liquid.
                Polyhalogenated          9  UN3152.........  II........  9........  IB8, IP2, IP4,   155.........  204........  241........  100 kg......  200 kg......  A........  95
                 biphenyls,                                                          T3, TP33.
                 solid or
                 Halogenated
                 monomethyldiphe
                 nyl-methanes,
                 solid or
                 Polyhalogenated
                 terphenyls,
                 solid.
 
                                                                                          * * * * * * *
                Potassium.......       4.3  UN2257.........  I.........  4.3......  A7, A19, A20,    151.........  211........  244........  Forbidden...  15 kg.......  D........  52
                                                                                     B27, IB4, IP1,
                                                                                     N6, N34, T9,
                                                                                     TP7, TP33, W32.
 
                                                                                          * * * * * * *
                Potassium              4.3  UN1870.........  I.........  4.3......  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
                 borohydride.
 
                                                                                          * * * * * * *
                Potassium              6.1  UN1680.........  I.........  6.1......  B69, B77, IB7,   None........  211........  242........  5 kg........  50 kg.......  B........  52
                 cyanide, solid.                                                     IP1, N74, N75,
                                                                                     T6, TP33, W31.
 
                                                                                          * * * * * * *
                Potassium              6.1  UN3413.........  I.........  6.1......  B69, B77, N74,   None........  201........  243........  1 L.........  30 L........  B........  52
                 cyanide                                                             N75, T14, TP2,
                 solution.                                                           TP13, W31.
                                                             II........  6.1......  B69, B77, IB2,   153.........  202........  243........  5 L.........  60 L........  B........  52
                                                                                     N74, N75, T11,
                                                                                     TP2, TP13,
                                                                                     TP27, W31.
                                                             III.......  6.1......  B69, B77, IB3,   153.........  203........  241........  60 L........  220 L.......  A........  52
                                                                                     N74, N75, T7,
                                                                                     TP2, TP13,
                                                                                     TP28, W31.
 
                                                                                          * * * * * * *
                Potassium              4.2  UN1929.........  II........  4.2......  A8, A19, A20,    None........  212........  241........  15 kg.......  50 kg.......  E........  13
                 dithionite or                                                       IB6, IP2, T3,
                 Potassium                                                           TP33, W31.
                 hydrosulfite.
 
                                                                                          * * * * * * *
                Potassium, metal       4.3  UN1420.........  I.........  4.3......  A7, A19, A20,    None........  201........  244........  Forbidden...  1 L.........  E........  13, 40, 52,
                 alloys, liquid.                                                     B27, W31.                                                                                       148

[[Page 61797]]

 
                Potassium, metal       4.3  UN3403.........  I.........  4.3......  A19, A20, B27,   None........  211........  244........  Forbidden...  15 kg.......  D........  13, 52, 148
                 alloys, solid.                                                      IB4, IP1, T9,
                                                                                     TP7, TP33, W32.
 
                                                                                          * * * * * * *
                Potassium              4.3  UN2012.........  I.........  4.3, 6.1.  A19, N40, W32..  None........  211........  None.......  Forbidden...  15 kg.......  E........  13, 40, 52,
                 phosphide.                                                                                                                                                          85, 148
 
                                                                                          * * * * * * *
                Potassium sodium       4.3  UN1422.........  I.........  4.3......  A7, A19, B27,    None........  201........  244........  Forbidden...  1 L.........  E........  13, 40, 52,
                 alloys, liquid.                                                     N34, N40, T9,                                                                                   148
                                                                                     TP3, TP7,
                                                                                     TP31, W31.
                Potassium sodium       4.3  UN3404.........  I.........  4.3......  A19, B27, N34,   None........  211........  244........  Forbidden...  15 kg.......  D........  13, 52, 148
                 alloys, solid.                                                      N40, T9, TP7,
                                                                                     TP33, W32.
                Potassium              4.2  UN1382.........  II........  4.2......  A19, A20, B16,   None........  212........  241........  15 kg.......  50 kg.......  A........  52
                 sulfide,                                                            IB6, IP2, N34,
                 anhydrous or                                                        T3, TP33, W31,
                 Potassium                                                           W40.
                 sulfide with
                 less than 30
                 percent water
                 of
                 crystallization.
 
                                                                                          * * * * * * *
                Potassium              5.1  UN2466.........  I.........  5.1......  A20, IB6, IP1..  None........  211........  None.......  Forbidden...  15 kg.......  D........  13, 52, 66,
                 superoxide.                                                                                                                                                         75, 148
 
                                                                                          * * * * * * *
                Propadiene,            2.1  UN2200.........  ..........  2.1......  387............  None........  304........  314, 315...  Forbidden...  150 kg......  B........  25, 40
                 stabilized.
 
                                                                                          * * * * * * *
                Propellant,           1.4C  UN0501.........  II........  1.4C.....  ...............  None........  62.........  None.......  Forbidden...  75 kg.......  2........  25
                 solid.
 
                                                                                          * * * * * * *
                Propylene                3  UN2850.........  III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                 tetramer.                                                           TP2.
 
                                                                                          * * * * * * *
                Propyleneimine,          3  UN1921.........  I.........  3, 6.1...  387, A3, N34,    None........  201........  243........  1 L.........  30 L........  D........  25, 40
                 stabilized.                                                         T14, TP2, TP13.
 
                                                                                          * * * * * * *
G.............  Pyrophoric             4.2  UN2845.........  I.........  4.2......  B11, T22, TP2,   None........  181........  244........  Forbidden...  Forbidden...  D........  13, 78, 148
                 liquids,                                                            TP7, W31.
                 organic, n.o.s.
G.............  Pyrophoric             4.2  UN1383.........  I.........  4.2......  B11, T21, TP7,   None........  187........  242........  Forbidden...  Forbidden...  D........  13, 148
                 metals, n.o.s.,                                                     TP33, W31.
                 or Pyrophoric
                 alloys, n.o.s.
G.............  Pyrophoric             4.2  UN3200.........  I.........  4.2......  T21, TP7, TP33,  None........  187........  242........  Forbidden...  Forbidden...  D........  13, 148
                 solid,                                                              W31.
                 inorganic,
                 n.o.s.
G.............  Pyrophoric             4.2  UN2846.........  I.........  4.2......  W31............  None........  187........  242........  Forbidden...  Forbidden...  D........  13, 148
                 solids,
                 organic, n.o.s.
 
                                                                                          * * * * * * *
                Radioactive              7  UN3322.........  ..........  7........  A56, T5, TP4,    421, 422,     427........  427........  ............  ............  A........  95, 150
                 material, low                                                       W7.              428.
                 specific
                 activity (LSA-
                 III) non
                 fissile or
                 fissile
                 excepted.
 
                                                                                          * * * * * * *
                Radioactive              7  UN2978.........  ..........  7, 6.1, 8  ...............  423.........  420, 427...  420, 427...  ............  ............  B........  40, 95, 132
                 material,
                 uranium
                 hexafluoride
                 non fissile or
                 fissile-
                 excepted.
                Radioactive              7  UN2977.........  ..........  7, 6.1, 8  ...............  453.........  417, 420...  417, 420...  ............  ............  B........  40, 95, 132
                 material,
                 uranium
                 hexafluoride,
                 fissile.
 
                                                                                          * * * * * * *
                Rubidium........       4.3  UN1423.........  I.........  4.3......  22, A7, A19,     None........  211........  242........  Forbidden...  15 kg.......  D........  13, 52, 148
                                                                                     IB4, IP1, N34,
                                                                                     N40, N45, W32.
 
                                                                                          * * * * * * *
G.............  Self-heating           4.2  UN3188.........  II........  4.2, 8...  IB2, W31.......  None........  202........  243........  1 L.........  5 L.........  C.
                 liquid,
                 corrosive,
                 inorganic,
                 n.o.s.
                                                             III.......  4.2, 8...  IB2, W31.......  None........  203........  241........  5 L.........  60 L........  C.
G.............  Self-heating           4.2  UN3185.........  II........  4.2, 8...  IB2, W31.......  None........  202........  243........  1 L.........  5 L.........  C.
                 liquid,
                 corrosive,
                 organic, n.o.s.
                                                             III.......  4.2, 8...  IB2, W31.......  None........  203........  241........  5 L.........  60 L........  C.

[[Page 61798]]

 
G.............  Self-heating           4.2  UN3186.........  II........  4.2......  IB2, W31.......  None........  202........  242........  1 L.........  5 L.........  C.
                 liquid,
                 inorganic,
                 n.o.s.
                                                             III.......  4.2......  IB2, W31.......  None........  203........  241........  5 L.........  60 L........  C.
G.............  Self-heating           4.2  UN3183.........  II........  4.2......  IB2, W31.......  None........  202........  242........  1 L.........  5 L.........  C.
                 liquid,
                 organic, n.o.s..
                                                             III.......  4.2......  IB2, W31.......  None........  203........  241........  5 L.........  60 L........  C.
G.............  Self-heating           4.2  UN3187.........  II........  4.2, 6.1.  IB2, W31.......  None........  202........  243........  1 L.........  5 L.........  C.
                 liquid, toxic,
                 inorganic,
                 n.o.s.
                                                             III.......  4.2, 6.1.  IB2, W31.......  None........  203........  241........  5 L.........  60 L........  C.
G.............  Self-heating           4.2  UN3184.........  II........  4.2, 6.1.  IB2, W31.......  None........  202........  243........  1 L.........  5 L.........  C.
                 liquid, toxic,
                 organic, n.o.s.
                                                             III.......  4.2, 6.1.  IB2, W31.......  None........  203........  241........  5 L.........  60 L........  C.
 
                                                                                          * * * * * * *
G.............  Self-heating           4.2  UN3190.........  II........  4.2......  IB6, IP2, T3,    None........  212........  241........  15 kg.......  50 kg.......  C.
                 solid,                                                              TP33, W31.
                 inorganic,
                 n.o.s.
                                                             III.......  4.2......  IB8, IP3, T1,    None........  213........  241........  25 kg.......  100 kg......  C.
                                                                                     TP33, W31.
G.............  Self-heating           4.2  UN3088.........  II........  4.2......  IB6, IP2, T3,    None........  212........  241........  15 kg.......  50 kg.......  C.
                 solid, organic,                                                     TP33, W31.
                 n.o.s.
                                                             III.......  4.2......  B116, B130,      None........  213........  241........  25 kg.......  100 kg......  C.
                                                                                     IB8, IP3, T1,
                                                                                     TP33, W31.
 
                                                                                          * * * * * * *
                Silver picrate,        4.1  UN1347.........  I.........  4.1......  23, W31........  None........  211........  None.......  Forbidden...  Forbidden...  D........  28, 36
                 wetted with not
                 less than 30
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Sodium..........       4.3  UN1428.........  I.........  4.3......  A7, A8, A19,     151.........  211........  244........  Forbidden...  15 kg.......  D........  13, 52, 148
                                                                                     A20, B9, B48,
                                                                                     B68, IB4, IP1,
                                                                                     N34, T9, TP7,
                                                                                     TP33, TP46,
                                                                                     W32.
 
                                                                                          * * * * * * *
                Sodium aluminum        4.3  UN2835.........  II........  4.3......  A8, A19, A20,    151.........  212........  242........  Forbidden...  50 kg.......  E........  13, 52, 148
                 hydride.                                                            IB4, T3, TP33,
                                                                                     W31, W40.
 
                                                                                          * * * * * * *
                Sodium                 4.3  UN1426.........  I.........  4.3......  N40, W32.......  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
                 borohydride.
 
                                                                                          * * * * * * *
                Sodium cyanide,        6.1  UN1689.........  I.........  6.1......  B69, B77, IB7,   None........  211........  242........  5 kg........  50 kg.......  B........  52
                 solid.                                                              N74, N75, T6,
                                                                                     TP33, W31.
                Sodium cyanide         6.1  UN3414.........  I.........  6.1......  B69, B77, N74,   None........  201........  243........  1 L.........  30 L........  B........  52
                 solution.                                                           N75, T14, TP2,
                                                                                     TP13, W31.
                                                             II........  6.1......  B69, B77, IB2,   153.........  202........  243........  5 L.........  60 L........  B........  52
                                                                                     N74, N75, T11,
                                                                                     TP2, TP13,
                                                                                     TP27, W31.
                                                             III.......  6.1......  B69, B77, IB3,   153.........  203........  241........  60 L........  220 L.......  A........  52
                                                                                     N74, N75, T7,
                                                                                     TP2, TP13,
                                                                                     TP28, W31.
 
                                                                                          * * * * * * *
                Sodium dinitro-o-      4.1  UN3369.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 cresolate,                                                          N41, N84, W31.
                 wetted with not
                 less than 10%
                 water, by mass.

[[Page 61799]]

 
                Sodium dinitro-o-      4.1  UN1348.........  I.........  4.1, 6.1.  23, A8, A19,     None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 cresolate,                                                          A20, N41, W31.
                 wetted with not
                 less than 15
                 percent water,
                 by mass.
                Sodium                 4.2  UN1384.........  II........  4.2......  A19, A20, IB6,   None........  212........  241........  15 kg.......  50 kg.......  E........  13
                 dithionite or                                                       IP2, T3, TP33,
                 Sodium                                                              W31.
                 hydrosulfite.
 
                                                                                          * * * * * * *
                Sodium hydride..       4.3  UN1427.........  I.........  4.3......  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 52, 148
 
                                                                                          * * * * * * *
                Sodium                 4.2  UN2318.........  II........  4.2......  A7, A19, A20,    None........  212........  241........  15 kg.......  50 kg.......  A........  52
                 hydrosulfide,                                                       IB6, IP2, T3,
                 with less than                                                      TP33, W31.
                 25 percent
                 water of
                 crystallization.
 
                                                                                          * * * * * * *
                Sodium methylate       4.2  UN1431.........  II........  4.2, 8...  A7, A19, IB5,    None........  212........  242........  15 kg.......  50 kg.......  B.
                                                                                     IP2, T3, TP33,
                                                                                     W31.
 
                                                                                          * * * * * * *
                Sodium phosphide       4.3  UN1432.........  I.........  4.3, 6.1.  A19, N40, W32..  None........  211........  None.......  Forbidden...  15 kg.......  E........  13, 40, 52,
                                                                                                                                                                                     85, 148
 
                                                                                          * * * * * * *
                Sodium                 4.1  UN1349.........  I.........  4.1......  23, A8, A19,     None........  211........  None.......  Forbidden...  15 kg.......  E........  28, 36
                 picramate,                                                          N41, W31.
                 wetted with not
                 less than 20
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Sodium sulfide,        4.2  UN1385.........  II........  4.2......  A19, A20, IB6,   None........  212........  241........  15 kg.......  50 kg.......  A........  52
                 anhydrous or                                                        IP2, N34, T3,
                 Sodium sulfide                                                      TP33, W31, W40.
                 with less than
                 30 percent
                 water of
                 crystallization.
 
                                                                                          * * * * * * *
                Stannic                4.3  UN1433.........  I.........  4.3, 6.1.  A19, N40, W32..  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 52,
                 phosphide.                                                                                                                                                          85, 148
 
                                                                                          * * * * * * *
                Strontium              5.1  UN1509.........  II........  5.1......  IB6, IP2, T3,    152.........  212........  242........  5 kg........  25 kg.......  C........  13, 52, 66,
                 peroxide.                                                           TP33, W100.                                                                                     75, 148
                Strontium              4.3  UN2013.........  I.........  4.3, 6.1.  A19, N40, W32..  None........  211........  None.......  Forbidden...  15 kg.......  E........  13, 40, 52,
                 phosphide.                                                                                                                                                          85, 148
 
                                                                                          * * * * * * *
                Styrene monomer,         3  UN2055.........  III.......  3........  387, B1, IB3,    150.........  203........  242........  60 L........  220 L.......  C........  25
                 stabilized.                                                         T2, TP1.
 
                                                                                          * * * * * * *
+.............  Sulfur trioxide,         8  UN1829.........  I.........  8, 6.1...  2, 387, B9,      None........  227........  244........  Forbidden...  Forbidden...  A........  25, 40
                 stabilized.                                                         B14, B32, B49,
                                                                                     B77, N34, T20,
                                                                                     TP4, TP13,
                                                                                     TP25, TP26,
                                                                                     TP38, TP45.
 
                                                                                          * * * * * * *
G.............  Tear gas               6.1  UN1693.........  I.........  6.1......  W31............  None........  201........  None.......  Forbidden...  Forbidden...  D........  40
                 substances,
                 liquid, n.o.s.
                                                             II........  6.1......  IB2, W31.......  None........  202........  None.......  Forbidden...  5 L.........  D........  40
G.............  Tear gas               6.1  UN3448.........  I.........  6.1......  T6, TP33, W31..  None........  211........  242........  Forbidden...  Forbidden...  D........  40
                 substance,
                 solid, n.o.s.
                                                             II........  6.1......  IB8, IP2, IP4,   None........  212........  242........  Forbidden...  25 kg.......  D........  40
                                                                                     T3, TP33, W31.
 
                                                                                          * * * * * * *
                Tetrafluoroethyl       2.1  UN1081.........  ..........  2.1......  387............  306.........  304........  None.......  Forbidden...  150 kg......  E........  25, 40
                 ene, stabilized.
 
                                                                                          * * * * * * *
                4-Thiapentanal..       6.1  UN2785.........  III.......  6.1......  IB3, T4, TP1,    153.........  203........  241........  60 L........  220 L.......  D........  25, 49
                                                                                     W31.
 
                                                                                          * * * * * * *
                Thiourea dioxide       4.2  UN3341.........  II........  4.2......  IB6, IP2, T3,    None........  212........  241........  15 kg.......  50 kg.......  D.
                                                                                     TP33, W31.

[[Page 61800]]

 
                                                             III.......  4.2......  IB8, IP3, T1,    None........  213........  241........  25 kg.......  100 kg......  D.
                                                                                     TP33, W31.
 
                                                                                          * * * * * * *
                Titanium               4.2  UN3174.........  III.......  4.2......  IB8, IP3, T1,    None........  213........  241........  25 kg.......  100 kg......  A.
                 disulphide.                                                         TP33, W31.
                Titanium hydride       4.1  UN1871.........  II........  4.1......  A19, A20, IB4,   None........  212........  241........  15 kg.......  50 kg.......  E.
                                                                                     N34, T3, TP33,
                                                                                     W31, W40.
                Titanium powder,       4.2  UN2546.........  I.........  4.2......  W31............  None........  211........  242........  Forbidden...  Forbidden...  D........  13, 148
                 dry.
                                                             II........  4.2......  A19, A20, IB6,   None........  212........  241........  15 kg.......  50 kg.......  D........  13, 148
                                                                                     IP2, N5, N34,
                                                                                     T3, TP33, W31.
                                                             III.......  4.2......  B135, IB8, IP4,  None........  213........  241........  25 kg.......  100 kg......  D........  13, 148
                                                                                     T1, TP33, W31.
                Titanium powder,       4.1  UN1352.........  II........  4.1......  A19, A20, IB6,   None........  212........  240........  15 kg.......  50 kg.......  E........  74
                 wetted with not                                                     IP2, N34, T3,
                 less than 25                                                        TP33, W31, W40.
                 percent water
                 (a visible
                 excess of water
                 must be
                 present) (a)
                 mechanically
                 produced,
                 particle size
                 less than 53
                 microns; (b)
                 chemically
                 produced,
                 particle size
                 less than 840
                 microns.
                Titanium sponge        4.1  UN2878.........  III.......  4.1......  A1, B134, IB8,   None........  213........  240........  25 kg.......  100 kg......  D........  13, 74, 147,
                 granules or                                                         IP4, T1, TP33,                                                                                  148
                 Titanium sponge                                                     W100.
                 powders.
 
                                                                                          * * * * * * *
                Titanium               4.2  UN2441.........  I.........  4.2, 8...  N34, W31.......  None........  181........  244........  Forbidden...  Forbidden...  D........  13, 40, 148
                 trichloride,
                 pyrophoric or
                 Titanium
                 trichloride
                 mixtures,
                 pyrophoric.
 
                                                                                          * * * * * * *
G.............  Toxic by               6.1  UN3490.........  I.........  6.1, 4.3,  1, B9, B14,      None........  226........  244........  Forbidden...  Forbidden...  D........  13, 21, 40,
                 inhalation                                               3.         B30, T22, TP2,                                                                                  49, 148
                 liquid, water-                                                      TP13, TP27,
                 reactive,                                                           TP38, TP44.
                 flammable,
                 n.o.s. with an
                 LC50 lower than
                 or equal to 200
                 ml/m3 and
                 saturated vapor
                 concentration
                 greater than or
                 equal to 500
                 LC50.
 
                                                                                          * * * * * * *
G.............  Toxic solids,          6.1  UN3125.........  I.........  6.1, 4.3.  A5, T6, TP33,    None........  211........  242........  5 kg........  15 kg.......  D........  13, 40, 148
                 water-reactive,                                                     W100.
                 n.o.s.
 
                                                                                          * * * * * * *
                Trichlorosilane.       4.3  UN1295.........  I.........  4.3, 3, 8  N34, T14, TP2,   None........  201........  244........  Forbidden...  Forbidden...  D........  21, 40, 49,
                                                                                     TP7, TP13, W31.                                                                                 100
 
                                                                                          * * * * * * *
                Trifluorochloroe       2.3  UN1082.........  ..........  2.3, 2.1.  3, 387, B14,     None........  304........  314, 315...  Forbidden...  Forbidden...  D........  25, 40
                 thylene,                                                            T50.
                 stabilized or
                 Refrigerant gas
                 R 1113.
 
                                                                                          * * * * * * *
                1,3,5-                   3  UN2325.........  III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                 Trimethylbenzen                                                     TP2.
                 e.
 
                                                                                          * * * * * * *
                Trinitrobenzene,       4.1  UN3367.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 3
                 wetted, with                                                        N41, N84, W31.
                 not less than
                 10% water, by
                 mass.

[[Page 61801]]

 
                Trinitrobenzene,       4.1  UN1354.........  I.........  4.1......  23, A2, A8,      None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 wetted with not                                                     A19, N41, W31.
                 less than 30
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Trinitrobenzoic        4.1  UN3368.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 acid, wetted                                                        N41, N84, W31.
                 with not less
                 than 10% water
                 by mass.
                Trinitrobenzoic        4.1  UN1355.........  I.........  4.1......  23, A2, A8,      None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 acid, wetted                                                        A19, N41, W31.
                 with not less
                 than 30 percent
                 water, by mass.
 
                                                                                          * * * * * * *
                Trinitrochlorobe       4.1  UN3365.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 nzene (picryl                                                       N41, N84, W31.
                 chloride),
                 wetted, with
                 not less than
                 10% water by
                 mass.
 
                                                                                          * * * * * * *
                Trinitrophenol         4.1  UN3364.........  I.........  4.1......  23, A8, A19,     None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 (picric acid),                                                      N41, N84, W31.
                 wetted, with
                 not less than
                 10 percent
                 water by mass.
 
                                                                                          * * * * * * *
                Trinitrophenol,        4.1  UN1344.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 wetted with not                                                     N41, W31.
                 less than 30
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Trinitrotoluene        4.1  UN3366.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 (TNT), wetted,                                                      N41, N84, W31.
                 with not less
                 than 10 percent
                 water by mass.
                Trinitrotoluene,       4.1  UN1356.........  I.........  4.1......  23, A2, A8,      None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 wetted or TNT,                                                      A19, N41, W31.
                 wetted, with
                 not less than
                 30 percent
                 water by mass.
 
                                                                                          * * * * * * *
                Tripropylene....         3  UN2057.........  II........  3........  IB2, T4, TP2...  150.........  202........  242........  5 L.........  60 L........  B.
                                                             III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                                                                                     TP2.
 
                                                                                          * * * * * * *
                Turpentine......         3  UN1299.........  III.......  3........  B1, IB3, T2,     150.........  203........  242........  60 L........  220 L.......  A.
                                                                                     TP2.
 
                                                                                          * * * * * * *
                Uranium                6.1  UN3507.........  I.........  6.1, 7, 8  369............  420.........  None.......  None.......  Less than .1  Less than .1  A........  132
                 hexafluoride,                                                                                                                kg.           kg.
                 radioactive
                 material,
                 excepted
                 package, less
                 than 0.1 kg per
                 package, non-
                 fissile or
                 fissile-
                 excepted.
 
                                                                                          * * * * * * *
                Urea nitrate,          4.1  UN3370.........  I.........  4.1......  162, A8, A19,    None........  211........  None.......  0.5 kg......  0.5 kg......  E........  28, 36
                 wetted, with                                                        N41, N84, W31.
                 not less than
                 10 percent
                 water by mass.
                Urea nitrate,          4.1  UN1357.........  I.........  4.1......  23, 39, A8,      None........  211........  None.......  1 kg........  15 kg.......  E........  28, 36
                 wetted with not                                                     A19, N41, W31.
                 less than 20
                 percent water,
                 by mass.
 
                                                                                          * * * * * * *
                Vinyl acetate,           3  UN1301.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25
                 stabilized.                                                         TP1.
                Vinyl bromide,         2.1  UN1085.........  ..........  2.1......  387, N86, T50..  306.........  304........  314, 315...  Forbidden...  150 kg......  C........  25, 40
                 stabilized.
                Vinyl butyrate,          3  UN2838.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25
                 stabilized.                                                         TP1.
                Vinyl chloride,        2.1  UN1086.........  ..........  2.1......  21, 387, B44,    306.........  304........  314, 315...  Forbidden...  150 kg......  B........  25, 40
                 stabilized.                                                         N86, T50.
                Vinyl ethyl              3  UN1302.........  I.........  3........  387, A3, T11,    None........  201........  243........  1 L.........  30 L........  D........  25
                 ether,                                                              TP2.
                 stabilized.
                Vinyl fluoride,        2.1  UN1860.........  ..........  2.1......  387, N86.......  306.........  304........  314, 315...  Forbidden...  150 kg......  E........  25, 40
                 stabilized.
                Vinyl isobutyl           3  UN1304.........  II........  3........  387, IB2, T4,    150.........  202........  242........  5 L.........  60 L........  C........  25
                 ether,                                                              TP1.
                 stabilized.
                Vinyl methyl           2.1  UN1087.........  ..........  2.1......  387, B44, T50..  306.........  304........  314, 315...  Forbidden...  150 kg......  B........  25, 40
                 ether,
                 stabilized.
 
                                                                                          * * * * * * *
                Vinylidene               3  UN1303.........  I.........  3........  387, T12, TP2,   150.........  201........  243........  1 L.........  30 L........  D........  25, 40
                 chloride,                                                           TP7.
                 stabilized.

[[Page 61802]]

 
                Vinylpyridines,        6.1  UN3073.........  II........  6.1, 3, 8  387, IB1, T7,    153.........  202........  243........  1 L.........  30 L........  B........  21, 25, 40,
                 stabilized.                                                         TP2, TP13.                                                                                      52, 100
                Vinyltoluenes,           3  UN2618.........  III.......  3........  387, B1, IB3,    150.........  203........  242........  60 L........  220 L.......  C........  25
                 stabilized.                                                         T2, TP1.
 
                                                                                          * * * * * * *
G.............  Water-reactive         4.3  UN3148.........  I.........  4.3......  T13, TP2, TP7,   None........  201........  244........  Forbidden...  1 L.........  E........  13, 40, 148
                 liquid, n.o.s.                                                      TP41, W31.
                                                             II........  4.3......  IB1, T7, TP2,    None........  202........  243........  1 L.........  5 L.........  E........  13, 40, 148
                                                                                     TP7, W31.
                                                             III.......  4.3......  IB2, T7, TP2,    None........  203........  242........  5 L.........  60 L........  E........  13, 40, 148
                                                                                     TP7, W31.
 
                                                                                          * * * * * * *
G.............  Water-reactive         4.3  UN3131.........  I.........  4.3, 8...  IB4, IP1, N40,   None........  211........  242........  Forbidden...  15 kg.......  D........  13, 148
                 solid,                                                              T9, TP7, TP33,
                 corrosive,                                                          W31.
                 n.o.s.
                                                             II........  4.3, 8...  IB6, IP2, T3,    151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 85, 148
                                                                                     TP33, W31, W40.
                                                             III.......  4.3, 8...  IB8, IP4, T1,    151.........  213........  241........  25 kg.......  100 kg......  E........  13, 85, 148
                                                                                     TP33, W31.
G.............  Water-reactive         4.3  UN3132.........  I.........  4.3, 4.1.  IB4, N40, W31..  None........  211........  242........  Forbidden...  15 kg.......  D........  13, 148
                 solid,
                 flammable,
                 n.o.s.
                                                             II........  4.3, 4.1.  IB4, T3, TP33,   151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 148
                                                                                     W31, W40.
                                                             III.......  4.3, 4.1.  IB6, T1, TP33,   151.........  213........  241........  25 kg.......  100 kg......  E........  13, 148
                                                                                     W31.
G.............  Water-reactive         4.3  UN2813.........  I.........  4.3......  IB4, N40, T9,    None........  211........  242........  Forbidden...  15 kg.......  E........  13, 40, 148
                 solid, n.o.s.                                                       TP7, TP33, W32.
                                                             II........  4.3......  B132, IB7, IP2,  151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 40, 148
                                                                                     IP4, T3, TP33,
                                                                                     W31, W40.
                                                             III.......  4.3......  B132, IB8, IP4,  151.........  213........  241........  25 kg.......  100 kg......  E........  13, 40, 148
                                                                                     T1, TP33, W31.
 
                                                                                          * * * * * * *
G.............  Water-reactive         4.3  UN3135.........  I.........  4.3, 4.2.  N40, W31.......  None........  211........  242........  Forbidden...  15 kg.......  E........  13, 148
                 solid, self-
                 heating, n.o.s.
                                                             II........  4.3, 4.2.  IB5, IP2, T3,    None........  212........  242........  15 kg.......  50 kg.......  E........  13, 148
                                                                                     TP33, W31, W40.
                                            ...............  III.......  4.3, 4.2.  IB8, IP4, T1,    None........  213........  241........  25 kg.......  100 kg......  E........  13, 148
                                                                                     TP33, W31.
G.............  Water-reactive         4.3  UN3134.........  I.........  4.3, 6.1.  A8, IB4, IP1,    None........  211........  242........  Forbidden...  15 kg.......  D........  13, 148
                 solid, toxic,                                                       N40, W31.
                 n.o.s.
                                                             II........  4.3, 6.1.  IB5, IP2, T3,    151.........  212........  242........  15 kg.......  50 kg.......  E........  13, 85, 148
                                                                                     TP33, W31, W40.
                                                             III.......  4.3, 6.1.  IB8, IP4, T1,    151.........  213........  241........  25 kg.......  100 kg......  E........  13, 85, 148
                                                                                     TP33, W31.
 
                                                                                          * * * * * * *
                Xanthates.......       4.2  UN3342.........  II........  4.2......  IB6, IP2, T3,    None........  212........  241........  15 kg.......  50 kg.......  D........  40
                                                                                     TP33, W31.
                                                             III.......  4.2......  IB8, IP3, T1,    None........  213........  241........  25 kg.......  100 kg......  D........  40
                                                                                     TP33, W31.
 
                                                                                          * * * * * * *
                Xylyl bromide,         6.1  UN1701.........  II........  6.1......  A3, A6, A7,      None........  340........  None.......  Forbidden...  60 L........  D........  40
                 liquid.                                                             IB2, N33, T7,
                                                                                     TP2, TP13, W31.
 

[[Page 61803]]

 
                                                                                          * * * * * * *
                Zinc ashes......       4.3  UN1435.........  III.......  4.3......  A1, A19, IB8,    151.........  213........  241........  25 kg.......  100 kg......  A........  13, 148
                                                                                     IP4, T1, TP33,
                                                                                     W100.
 
                                                                                          * * * * * * *
                Zinc chloride,           8  UN1840.........  III.......  8........  IB3, T4, TP2...  154.........  203........  241........  5 L.........  60 L........  A.
                 solution.
 
                                                                                          * * * * * * *
                Zinc peroxide...       5.1  UN1516.........  II........  5.1......  IB6, IP2, T3,    152.........  212........  242........  5 kg........  25 kg.......  C........  13, 52, 66,
                                                                                     TP33, W100.                                                                                     75, 148
                Zinc phosphide..       4.3  UN1714.........  I.........  4.3, 6.1.  A19, N40, W32..  None........  211........  None.......  Forbidden...  15 kg.......  E........  13, 40, 52,
                                                                                                                                                                                     85, 148
                Zinc powder or         4.3  UN1436.........  I.........  4.3, 4.2.  A19, IB4, IP1,   None........  211........  242........  Forbidden...  15 kg.......  A........  13, 52, 53,
                 Zinc dust.                                                          N40, W31.                                                                                       148
                                                             II........  4.3, 4.2.  A19, IB7, IP2,   None........  212........  242........  15 kg.......  50 kg.......  A........  13, 52, 53,
                                                                                     T3, TP33, W31,                                                                                  148
                                                                                     W40.
                                                             III.......  4.3, 4.2.  IB8, IP4, T1,    None........  213........  242........  25 kg.......  100 kg......  A........  13, 52, 53,
                                                                                     TP33, W31.                                                                                      148
                Zirconium              4.1  UN1437.........  II........  4.1......  A19, A20, IB4,   None........  212........  240........  15 kg.......  50 kg.......  E.
                 hydride.                                                            N34, T3, TP33,
                                                                                     W31, W40.
 
                                                                                          * * * * * * *
                Zirconium, dry,        4.1  UN2858.........  III.......  4.1......  A1, W100.......  151.........  213........  240........  25 kg.......  100 kg......  A........  13, 147, 148
                 coiled wire,
                 finished metal
                 sheets, strip
                 (thinner than
                 254 microns but
                 not thinner
                 than 18
                 microns).
                Zirconium, dry,        4.2  UN2009.........  III.......  4.2......  A1, A19, W31...  None........  213........  240........  25 kg.......  100 kg......  D........  13, 148
                 finished
                 sheets, strip
                 or coiled wire.
 
                                                                                          * * * * * * *
                Zirconium              4.1  UN1517.........  I.........  4.1......  23, N41, W31...  None........  211........  None.......  1 kg........  15 kg.......  D........  28, 36
                 picramate,
                 wetted with not
                 less than 20
                 percent water,
                 by mass.
                Zirconium              4.2  UN2008.........  I.........  4.2......  T21, TP7, TP33,  None........  211........  242........  Forbidden...  Forbidden...  D........  13, 148
                 powder, dry.                                                        W31.
                                                             II........  4.2......  A19, A20, IB6,   None........  212........  241........  15 kg.......  50 kg.......  D........  13, 148
                                                                                     IP2, N5, N34,
                                                                                     T3, TP33, W31.
                                                             III.......  4.2......  B135, IB8, IP4,  None........  213........  241........  25 kg.......  100 kg......  D........  13, 148
                                                                                     T1, TP33, W31.
                Zirconium              4.1  UN1358.........  II........  4.1......  A19, A20, IB6,   None........  212........  241........  15 kg.......  50 kg.......  E........  13, 74, 147,
                 powder, wetted                                                      IP2, N34, T3,                                                                                   148
                 with not less                                                       TP33, W31, W40.
                 than 25 percent
                 water (a
                 visible excess
                 of water must
                 be present) (a)
                 mechanically
                 produced,
                 particle size
                 less than 53
                 microns; (b)
                 chemically
                 produced,
                 particle size
                 less than 840
                 microns.
                Zirconium scrap.       4.2  UN1932.........  III.......  4.2......  B135, IB8, IP4,  None........  213........  240........  Forbidden...  Forbidden...  D........  13, 148
                                                                                     N34, T1, TP33,
                                                                                     W31.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


[[Page 61804]]

* * * * *
0
13. In Appendix B to Sec.  172.101, the List of Marine Pollutants is 
amended by adding six (6) entries in appropriate alphabetical order to 
read as follows:

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

* * * * *

                        List of Marine Pollutants
------------------------------------------------------------------------
            S.M.P. (1)                      Marine pollutant (2)
------------------------------------------------------------------------
 
                                * * * * *
                                   Hexanes.
 
                                * * * * *
                                   Hypochlorite solutions.
 
                                * * * * *
                                   Isoprene, stabilized.
 
                                * * * * *
                                   N-Methylaniline.
 
                                * * * * *
                                   Methylcyclohexane.
 
                                * * * * *
                                   Tripropylene.
 
                                * * * * *
------------------------------------------------------------------------

0
14. In Sec.  172.102:
0
a. In paragraph (c)(1):
0
1. Revise special provisions 40, 134, and 135;
0
2. Add special provisions 157, 181, and 182;
0
3. Revise special provisions 238 and 369; and
0
4. Add special provisions, 379, 387, and 422.
0
b. In paragraph (c)(2), special provisions A210 and A212 are added.
0
c. In paragraph (c)(3), special provisions B134 and B135 are added.
0
d. In paragraph (c)(4), Table 2--IP Codes is revised.
0
e. In paragraph (c)(5), special provision N90 is revised and N92 is 
added.
0
e. In paragraph (c)(9), special provisions W31, W32, W40, and W100 are 
added.
    The additions and revisions read as follows:


Sec.  172.102  Special Provisions.

* * * * *
    (c) * * *
    (1) * * *
    40 Polyester resin kits consist of two components: A base material 
(either Class 3 or Division 4.1, Packing Group II or III) and an 
activator (organic peroxide), each separately packed in an inner 
packaging. The organic peroxide must be type D, E, or F, not requiring 
temperature control. The components may be placed in the same outer 
packaging provided they will not interact dangerously in the event of 
leakage. The Packing Group assigned will be II or III, according to the 
classification criteria for either Class 3 or Division 4.1, as 
appropriate, applied to the base material. Additionally, unless 
otherwise excepted in this subchapter, polyester resin kits must be 
packaged in specification combination packagings based on the 
performance level of the base material contained within the kit.
* * * * *
    134 This entry only applies to vehicles powered by wet batteries, 
sodium batteries, lithium metal batteries or lithium ion batteries and 
equipment powered by wet batteries or sodium batteries that are 
transported with these batteries installed.
    a. For the purpose of this special provision, vehicles are self-
propelled apparatus designed to carry one or more persons or goods. 
Examples of such vehicles are electrically-powered cars, motorcycles, 
scooters, three- and four-wheeled vehicles or motorcycles, trucks, 
locomotives, bicycles (pedal cycles with an electric motor) and other 
vehicles of this type (e.g. self-balancing vehicles or vehicles not 
equipped with at least one seating position), lawn tractors, self-
propelled farming and construction equipment, boats, aircraft, 
wheelchairs and other mobility aids. This includes vehicles transported 
in a packaging. In this case some parts of the vehicle may be detached 
from its frame to fit into the packaging.
    b. Examples of equipment are lawnmowers, cleaning machines or model 
boats and model aircraft. Equipment powered by lithium metal batteries 
or lithium ion batteries must be consigned under the entries ``Lithium 
metal batteries contained in equipment'' or ``Lithium metal batteries 
packed with equipment'' or ``Lithium ion batteries contained in 
equipment'' or ``Lithium ion batteries packed with equipment'' as 
appropriate.
    c. Self-propelled vehicles or equipment that also contain an 
internal combustion engine must be consigned under the entries 
``Engine, internal combustion, flammable gas powered'' or ``Engine, 
internal combustion, flammable liquid powered'' or ``Vehicle, flammable 
gas powered'' or ``Vehicle, flammable liquid powered,'' as appropriate. 
These entries include hybrid electric vehicles powered by both an 
internal combustion engine and batteries. Additionally, self-propelled 
vehicles or equipment that contain a fuel cell engine must be consigned 
under the entries ``Engine, fuel cell, flammable gas powered'' or 
``Engine, fuel cell, flammable liquid powered'' or ``Vehicle, fuel 
cell, flammable gas powered'' or ``Vehicle, fuel cell, flammable liquid 
powered,'' as appropriate. These entries include hybrid electric 
vehicles powered by a fuel cell engine, an internal combustion engine, 
and batteries.
    135 Internal combustion engines installed in a vehicle must be 
consigned under the entries ``Vehicle, flammable gas powered'' or 
``Vehicle, flammable liquid powered,'' as appropriate. If a vehicle is 
powered by a flammable liquid and a flammable gas internal combustion 
engine, it must be consigned under the entry ``Vehicle, flammable gas 
powered.'' These entries include hybrid electric vehicles powered by 
both an internal combustion engine and wet, sodium or lithium batteries 
installed. If a fuel cell engine is installed in a vehicle, the vehicle 
must be consigned using the entries ``Vehicle, fuel cell, flammable gas 
powered'' or ``Vehicle, fuel cell, flammable liquid powered,'' as 
appropriate. These entries include hybrid electric vehicles powered by 
a fuel cell, an internal combustion engine, and wet, sodium or lithium 
batteries installed. For the purpose of this special provision, 
vehicles are self-propelled apparatus designed to carry one or more 
persons or goods. Examples of such vehicles are cars, motorcycles, 
trucks, locomotives, scooters, three- and four-wheeled vehicles or 
motorcycles, lawn tractors, self-propelled farming and construction 
equipment, boats and aircraft.
* * * * *
    157 When transported as a limited quantity or a consumer commodity, 
the maximum net capacity specified in Sec.  173.151(b)(1)(i) of this 
subchapter for inner packagings may be increased to 5 kg (11 pounds).
* * * * *
    181 When a package contains a combination of lithium batteries 
contained in equipment and lithium batteries packed with equipment, the 
following requirements apply:
    a. The shipper must ensure that all applicable requirements of 
Sec.  173.185 are met. The total mass of lithium batteries contained in 
any package must not exceed the quantity limits in columns 9A and 9B 
for passenger aircraft or cargo aircraft, as applicable;
    b. except as provided in Sec.  173.185(c)(3), the package must be 
marked ``UN 3091 Lithium metal

[[Page 61805]]

batteries packed with equipment'', or ``UN 3481 Lithium ion batteries 
packed with equipment,'' as appropriate. If a package contains both 
lithium metal batteries and lithium ion batteries packed with and 
contained in equipment, the package must be marked as required for both 
battery types. However, button cell batteries installed in equipment 
(including circuit boards) need not be considered; and
    c. the shipping paper must indicate ``UN 3091 Lithium metal 
batteries packed with equipment'' or ``UN 3481 Lithium ion batteries 
packed with equipment,'' as appropriate. If a package contains both 
lithium metal batteries and lithium ion batteries packed with and 
contained in equipment, then the shipping paper must indicate both ``UN 
3091 Lithium metal batteries packed with equipment'' and ``UN 3481 
Lithium ion batteries packed with equipment.''
    182 Equipment containing only lithium batteries must be classified 
as either UN 3091 or UN 3481.
* * * * *
    238 Neutron radiation detectors: a. Neutron radiation detectors 
containing non-pressurized boron trifluoride gas in excess of 1 gram 
(0.035 ounces) and radiation detection systems containing such neutron 
radiation detectors as components may be transported by highway, rail, 
vessel, or cargo aircraft in accordance with the following:
    a. Each radiation detector must meet the following conditions:
    (1) The pressure in each neutron radiation detector must not exceed 
105 kPa absolute at 20 [deg]C (68 [deg]F);
    (2) The amount of gas must not exceed 13 grams (0.45 ounces) per 
detector; and
    (3) Each neutron radiation detector must be of welded metal 
construction with brazed metal to ceramic feed through assemblies. 
These detectors must have a minimum burst pressure of 1800 kPa as 
demonstrated by design type qualification testing; and
    (4) Each detector must be tested to a 1 x 10-10 cm\3\/s 
leaktightness standard before filling.
    b. Radiation detectors transported as individual components must be 
transported as follows:
    (1) They must be packed in a sealed intermediate plastic liner with 
sufficient absorbent or adsorbent material to absorb or adsorb the 
entire gas contents.
    (2) They must be packed in strong outer packagings and the 
completed package must be capable of withstanding a 1.8 meter (5.9 
feet) drop without leakage of gas contents from detectors.
    (3) The total amount of gas from all detectors per outer packaging 
must not exceed 52 grams (1.83 ounces).
    c. Completed neutron radiation detection systems containing 
detectors meeting the conditions of paragraph a(1) of this special 
provision must be transported as follows:
    (1) The detectors must be contained in a strong sealed outer 
casing;
    (2) The casing must contain include sufficient absorbent or 
adsorbent material to absorb or adsorb the entire gas contents;
    (3) The completed system must be packed in strong outer packagings 
capable of withstanding a 1.8 meter (5.9 feet) drop test without 
leakage unless a system's outer casing affords equivalent protection.
    d. Except for transportation by aircraft, neutron radiation 
detectors and radiation detection systems containing such detectors 
transported in accordance with paragraph a. of this special provision 
are not subject to the labeling and placarding requirements of part 172 
of this subchapter.
    e. When transported by highway, rail, vessel, or as cargo on an 
aircraft, neutron radiation detectors containing not more than 1 gram 
of boron trifluoride, including those with solder glass joints are not 
subject to any other requirements of this subchapter provided they meet 
the requirements in paragraph a(1) of this special provision and are 
packed in accordance with paragraph a(2) of this special provision. 
Radiation detection systems containing such detectors are not subject 
to any other requirements of this subchapter provided they are packed 
in accordance with paragraph a(3) of this special provision.
* * * * *
    369 In accordance with Sec.  173.2a, this radioactive material in 
an excepted package possessing corrosive properties is classified in 
Division 6.1 with a radioactive material and corrosive subsidiary risk. 
Uranium hexafluoride may be classified under this entry only if the 
conditions of Sec. Sec.  173.420(a)(4) and (6), 173.420(d), 173.421(b) 
and (d), and, for fissile-excepted material, the conditions of 173.453 
of this subchapter are met. In addition to the provisions applicable to 
the transport of Division 6.1 substances, the provisions of Sec. Sec.  
173.421(c), and 173.443(a) of this subchapter apply. In addition, 
packages shall be legibly and durably marked with an identification of 
the consignor, the consignee, or both. No Class 7 label is required to 
be displayed. The consignor shall be in possession of a copy of each 
applicable certificate when packages include fissile material excepted 
by competent authority approval. When a consignment is undeliverable, 
the consignment shall be placed in a safe location and the appropriate 
competent authority shall be informed as soon as possible and a request 
made for instructions on further action. If it is evident that a 
package of radioactive material, or conveyance carrying unpackaged 
radioactive material, is leaking, or if it is suspected that the 
package, or conveyance carrying unpackaged material, may have leaked, 
the requirements of Sec.  173.443(e) of this subchapter apply.
* * * * *
    379 When offered for transport by highway, rail, or cargo vessel, 
anhydrous ammonia adsorbed or absorbed on a solid contained in ammonia 
dispensing systems or receptacles intended to form part of such systems 
is not subject to the requirements of this subchapter if the following 
conditions in this provision are met. In addition to meeting the 
conditions in this provision, transport on cargo aircraft only may be 
authorized with prior approval of the Associate Administrator.
    a. The adsorption or absorption presents the following properties:
    (1) The pressure at a temperature of 20 [deg]C (68 [deg]F) in the 
receptacle is less than 0.6 bar (60 kPa);
    (2) The pressure at a temperature of 35 [deg]C (95 [deg]F) in the 
receptacle is less than 1 bar (100 kPa);
    (3) The pressure at a temperature of 85 [deg]C (185 [deg]F) in the 
receptacle is less than 12 bar (1200 kPa).
    b. The adsorbent or absorbent material shall not meet the 
definition or criteria for inclusion in Classes 1 to 8;
    c. The maximum contents of a receptacle shall be 10 kg of ammonia; 
and
    d. Receptacles containing adsorbed or absorbed ammonia shall meet 
the following conditions:
    (1) Receptacles shall be made of a material compatible with ammonia 
as specified in ISO 11114-1:2012 (IBR, see Sec.  171.7 of this 
subchapter);
    (2) Receptacles and their means of closure shall be hermetically 
sealed and able to contain the generated ammonia;
    (3) Each receptacle shall be able to withstand the pressure 
generated at 85 [deg]C (185 [deg]F) with a volumetric expansion no 
greater than 0.1%;
    (4) Each receptacle shall be fitted with a device that allows for 
gas evacuation once pressure exceeds 15 bar (1500 kPa) without violent 
rupture, explosion or projection; and
    (5) Each receptacle shall be able to withstand a pressure of 20 bar 
(2000

[[Page 61806]]

kPa) without leakage when the pressure relief device is deactivated.
    e. When offered for transport in an ammonia dispenser, the 
receptacles shall be connected to the dispenser in such a way that the 
assembly is guaranteed to have the same strength as a single 
receptacle.
    f. The properties of mechanical strength mentioned in this special 
provision shall be tested using a prototype of a receptacle and/or 
dispenser filled to nominal capacity, by increasing the temperature 
until the specified pressures are reached.
    g. The test results shall be documented, shall be traceable, and 
shall be made available to a representative of the Department upon 
request.
* * * * *
    387 When materials are stabilized by temperature control, the 
provisions of Sec.  173.21(f) apply. When chemical stabilization is 
employed, the person offering the material for transport shall ensure 
that the level of stabilization is sufficient to prevent the material 
as packaged from dangerous polymerization at 50 [deg]C 
(122[emsp14][deg]F). If chemical stabilization becomes ineffective at 
lower temperatures within the anticipated duration of transport, 
temperature control is required and is forbidden by aircraft. In making 
this determination factors to be taken into consideration include, but 
are not limited to, the capacity and geometry of the packaging and the 
effect of any insulation present, the temperature of the material when 
offered for transport, the duration of the journey, and the ambient 
temperature conditions typically encountered in the journey 
(considering also the season of year), the effectiveness and other 
properties of the stabilizer employed, applicable operational controls 
imposed by regulation (e.g., requirements to protect from sources of 
heat, including other cargo carried at a temperature above ambient) and 
any other relevant factors.
* * * * *
    422 When labelling is required, the label to be used must be the 
label shown in Sec.  172.447. Labels conforming to requirements in 
place on December 31, 2016 may continue to be used until December 31, 
2018. When a placard is displayed, the placard must be the placard 
shown in Sec.  172.560.
* * * * *
    (2) * * *
    A210 This substance is forbidden for transport by air. It may be 
transported on cargo aircraft only with the prior approval of the 
Associate Administrator.
* * * * *
    A212 ``UN 2031, Nitric acid, other than red fuming, with more than 
20% and less than 65% nitric acid'' intended for use in sterilization 
devices only, may be transported on passenger aircraft irrespective of 
the indication of ``forbidden'' in columns (9A) of the Sec.  172.101 
table provided that:
    a. Each inner packaging contains not more than 30 mL;
    b. Each inner packaging is contained in a sealed leak-proof 
intermediate packaging with sufficient absorbent material capable of 
containing the contents of the inner packaging;
    c. Intermediate packagings are securely packed in an outer 
packaging of a type permitted by Sec.  173.158(g) which meet the 
requirements of part 178 of the HMR at the Packing Group I performance 
level;
    d. The maximum quantity of nitric acid in the package does not 
exceed 300 mL; and
    e. Transport in accordance with this special provision must be 
noted on the shipping paper.
* * * * *
    (3) * * *
    B134 For Large Packagings offered for transport by vessel, flexible 
or fibre inner packagings shall be sift-proof and water-resistant or 
shall be fitted with a sift-proof and water-resistant liner.
    B135 For Large Packagings offered for transport by vessel, flexible 
or fibre inner packagings shall be hermetically sealed.
* * * * *
    (4) * * *

                            Table 2--IP Codes
------------------------------------------------------------------------
           IP code
------------------------------------------------------------------------
IP1.........................  IBCs must be packed in closed freight
                               containers or a closed transport vehicle.
IP2.........................  When IBCs other than metal or rigid
                               plastics IBCs are used, they must be
                               offered for transportation in a closed
                               freight container or a closed transport
                               vehicle.
IP3.........................  Flexible IBCs must be sift-proof and water-
                               resistant or must be fitted with a sift-
                               proof and water-resistant liner.
IP4.........................  Flexible, fiberboard or wooden IBCs must
                               be sift-proof and water-resistant or be
                               fitted with a sift-proof and water-
                               resistant liner.
IP5.........................  IBCs must have a device to allow venting.
                               The inlet to the venting device must be
                               located in the vapor space of the IBC
                               under maximum filling conditions.
IP6.........................  Non-specification bulk bins are
                               authorized.
IP7.........................  For UN identification numbers 1327, 1363,
                               1364, 1365, 1386, 1841, 2211, 2217, 2793
                               and 3314, IBCs are not required to meet
                               the IBC performance tests specified in
                               part 178, subpart N of this subchapter.
IP8.........................  Ammonia solutions may be transported in
                               rigid or composite plastic IBCs (31H1,
                               31H2 and 31HZ1) that have successfully
                               passed, without leakage or permanent
                               deformation, the hydrostatic test
                               specified in Sec.   178.814 of this
                               subchapter at a test pressure that is not
                               less than 1.5 times the vapor pressure of
                               the contents at 55 [deg]C (131 [deg]F).
IP13........................  Transportation by vessel in IBCs is
                               prohibited.
IP14........................  Air must be eliminated from the vapor
                               space by nitrogen or other means.
IP15........................  For UN2031 with more than 55% nitric acid,
                               rigid plastic IBCs and composite IBCs
                               with a rigid plastic inner receptacle are
                               authorized for two years from the date of
                               IBC manufacture.
IP16........................  IBCs of type 31A and 31N are only
                               authorized if approved by the Associate
                               Administrator.
IP19........................  For UN identification numbers 3531, 3532,
                               3533, and 3534, IBCs must be designed and
                               constructed to permit the release of gas
                               or vapor to prevent a build-up of
                               pressure that could rupture the IBCs in
                               the event of loss of stabilization.
IP20........................  Dry sodium cyanide or potassium cyanide is
                               also permitted in siftproof, water-
                               resistant, fiberboard IBCs when
                               transported in closed freight containers
                               or transport vehicles.
------------------------------------------------------------------------

* * * * *
    (5) * * *
    N90 Metal packagings are not authorized. Packagings of other 
material with a small amount of metal, for example metal closures or 
other metal fittings such as those mentioned in part 178 of this 
subchapter, are not considered metal packagings. Packagings of other 
material constructed with a small amount of metal must be designed such 
that the hazardous material does not contact the metal.
* * * * *

[[Page 61807]]

    N92 Notwithstanding the provisions of Sec.  173.24(g), packagings 
shall be designed and constructed to permit the release of gas or vapor 
to prevent a build-up of pressure that could rupture the packagings in 
the event of loss of stabilization.
* * * * *
    (9) * * *
    W31 Packagings must be hermetically sealed.
    W32 Packagings shall be hermetically sealed, except for solid fused 
material.
    W40 Bags are not allowed.
* * * * *
    W100 Flexible, fibreboard or wooden packagings must be sift-proof 
and water-resistant or must be fitted with a sift-proof and water-
resistant liner.
* * * * *
0
15. In Sec.  172.407, paragraphs (c)(1)(i) and (iii) are revised to 
read as follows:


Sec.  172.407  Label specifications.

* * * * *
    (c) * * *
    (1) * * *
    (i) If the size of the package so requires, the dimensions of the 
label and its features may be reduced proportionally provided the 
symbol and other elements of the label remain clearly visible.
* * * * *
    (iii) Transitional exception--For domestic transportation, a label 
in conformance with the requirements of this paragraph in effect on 
December 31, 2014, may continue to be used until December 31, 2018.
* * * * *
0
16. Section 172.447 is added to read as follows:


Sec.  172.447  LITHIUM BATTERY label.

    (a) Except for size and color, the LITHIUM BATTERY label must be as 
follows:
BILLING CODE 4910-60-P
[GRAPHIC] [TIFF OMITTED] TP07SE16.000

    (b) In addition to complying with Sec.  172.407, the background on 
the LITHIUM BATTERY label must be white with seven black vertical 
stripes on the top half. The black vertical stripes must be spaced, so 
that, visually, they appear equal in width to the six white spaces 
between them. The lower half of the label must be white with the symbol 
(battery group, one broken and emitting flame) and class number ``9'' 
underlined and centered at the bottom in black.
    (c) Labels conforming to requirements in place on December 31, 2016 
may continue to be used until December 31, 2018.
0
17. In Sec.  172.505, paragraph (b) is revised to read as follows:


Sec.  172.505  Placarding for subsidiary hazards.

* * * * *
    (b) In addition to the RADIOACTIVE placard which may be required by 
Sec.  172.504(e), each transport vehicle, portable tank or freight 
container that contains 454 kg (1,001 pounds) or more gross weight of 
non-fissile, fissile-excepted, or fissile uranium hexafluoride must be 
placarded with a CORROSIVE placard and a POISON placard on each side 
and each end.
* * * * *

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

0
18. The authority citation for part 173 continues to read as follows:

    Authority:  49 U.S.C. 5101-5128, 44701; 49 CFR 1.81, 1.96 and 
1.97.

0
19. In Sec.  173.4a, paragraph (e)(3) is revised to read as follows:


Sec.  173.4a  Excepted quantities.

* * * * *
    (e) * * *
    (3) Each inner packaging must be securely packed in an intermediate 
packaging with cushioning material in such a way that, under normal 
conditions of transport, it cannot break, be punctured or leak its 
contents. The completed package as prepared for transport must 
completely contain the contents in case of breakage or leakage, 
regardless of package orientation. For liquid hazardous materials, the 
intermediate or outer packaging must contain sufficient absorbent 
material that:
    (i) Will absorb the entire contents of the inner packaging.
    (ii) Will not react dangerously with the material or reduce the 
integrity or function of the packaging materials.

[[Page 61808]]

    (iii) When placed in the intermediate packaging, the absorbent 
material may be the cushioning material.
* * * * *
0
20. In Sec.  173.9, paragraph (e) is revised to read as follows:


Sec.  173.9  Transport vehicles or freight containers containing lading 
which has been fumigated.

* * * * *
    (e) FUMIGANT marking. (1) The FUMIGANT marking must consist of 
black letters on a white background that is a rectangle at least 400 mm 
(15.75 inches) wide and at least 300 mm (11.8 inches) high as measured 
to the outside of the lines forming the border of the marking. The 
minimum width of the line forming the border must be 2 mm and the text 
on the marking must not be less than 25 mm high. Except for size and 
color, the FUMIGANT marking must be as shown in the following figure. 
Where dimensions are not specified, all features shall be in 
approximate proportion to those shown.
    (i) The marking, and all required information, must be capable of 
withstanding, without deterioration or a substantial reduction in 
effectiveness, a 30-day exposure to open weather conditions.
    (ii) [Reserved]
BILLING CODE 4910-60-P
[GRAPHIC] [TIFF OMITTED] TP07SE16.001

BILLING CODE 4910-60-C
    (2) The ``*'' shall be replaced with the technical name of the 
fumigant.
* * * * *
0
21. In Sec.  173.21, revise paragraph (f) to read as follows:


Sec.  173.21  Forbidden materials and packages.

* * * * *
    (f) A package containing a material which is likely to decompose 
with a self-accelerated decomposition temperature (SADT) or a self-
accelerated polymerization temperature (SAPT) of 50 [deg]C 
(122[emsp14][deg]F) or less, with an evolution of a dangerous quantity 
of heat or gas when decomposing or polymerizing, unless the material is 
stabilized or inhibited in a manner to preclude such evolution. The 
SADT and SAPT may be determined by any of the test methods described in 
Part II of the UN Manual of Tests and Criteria (IBR, see Sec.  171.7 of 
this subchapter).

[[Page 61809]]

    (1) A package meeting the criteria of paragraph (f) of this section 
may be required to be shipped under controlled temperature conditions. 
The control temperature and emergency temperature for a package shall 
be as specified in the table in this paragraph based upon the SADT or 
SAPT of the material. The control temperature is the temperature above 
which a package of the material may not be offered for transportation 
or transported. The emergency temperature is the temperature at which, 
due to imminent danger, emergency measures must be initiated.

  Sec.   173.21 Table--Derivation of Control and Emergency Temperature
------------------------------------------------------------------------
                                        Control            Emergency
          SADT/SAPT \1\              temperatures         temperature
------------------------------------------------------------------------
SADT/SAPT <=20 [deg]C (68         20 [deg]C (36       10 [deg]C (18
 [deg]F).                          [deg]F) below       [deg]F) below
                                   SADT/SAPT.          SADT/SAPT.
20 [deg]C (68 [deg]F) =48..........  ..............  ..............  >=8...........  OP7             ...........  ...........            2
Acetyl acetone peroxide [as a      UN3106           <=32.................  ..............  ..............  ..............  ..............  OP7             ...........  ...........           21
 paste].
Acetyl cyclohexanesulfonyl         UN3112           <=82.................  ..............  ..............  ..............  >=12..........  OP4                     -10            0  ...........
 peroxide.
Acetyl cyclohexanesulfonyl         UN3115           <=32.................  ..............  >=68..........  ..............  ..............  OP7                     -10            0  ...........
 peroxide.
tert-Amyl hydroperoxide..........  UN3107           <=88.................  >=6...........  ..............  ..............  >=6...........  OP8             ...........  ...........  ...........
tert-Amyl peroxyacetate..........  UN3105           <=62.................  >=38..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
tert-Amyl peroxybenzoate.........  UN3103           <=100................  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
tert-Amyl peroxy-2-ethylhexanoate  UN3115           <=100................  ..............  ..............  ..............  ..............  OP7                      20           25  ...........
tert-Amyl peroxy-2-ethylhexyl      UN3105           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 carbonate.
tert-Amyl peroxy isopropyl         UN3103           <=77.................  >=23..........  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 carbonate.
tert-Amyl peroxyneodecanoate.....  UN3115           <=77.................  ..............  >=23..........  ..............  ..............  OP7                       0           10  ...........
tert-Amyl peroxyneodecanoate.....  UN3119           <=47.................  >=53..........  ..............  ..............  ..............  OP8                       0           10  ...........
tert-Amyl peroxypivalate.........  UN3113           <=77.................  ..............  >=23..........  ..............  ..............  OP5                      10           15  ...........
tert-Amyl peroxypivalate.........  UN3119           <=32.................  >=68..........  ..............  ..............  ..............  OP8                      10           15  ...........
tert-Amyl peroxy-3,5,5-            UN3105           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 trimethylhexanoate.
tert-Butyl cumyl peroxide........  UN3109           >42-100..............  ..............  ..............  ..............  ..............  OP8             ...........  ...........            9
tert-Butyl cumyl peroxide........  UN3108           <=52.................  ..............  ..............  >=48..........  ..............  OP8             ...........  ...........            9
n-Butyl-4,4-di-(tert-              UN3103           >52-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxy)valerate.
n-Butyl-4,4-di-(tert-              UN3108           <=52.................  ..............  ..............  >=48..........  ..............  OP8             ...........  ...........  ...........
 butylperoxy)valerate.
tert-Butyl hydroperoxide.........  UN3103           >79-90...............  ..............  ..............  ..............  >=10..........  OP5             ...........  ...........           13
tert-Butyl hydroperoxide.........  UN3105           <=80.................  >=20..........  ..............  ..............  ..............  OP7             ...........  ...........        4, 13
tert-Butyl hydroperoxide.........  UN3107           <=79.................  ..............  ..............  ..............  >14...........  OP8             ...........  ...........       13, 16
tert-Butyl hydroperoxide.........  UN3109           <=72.................  ..............  ..............  ..............  >=28..........  OP8             ...........  ...........           13
tert-Butyl hydroperoxide [and] Di- UN3103           <82 + >9.............  ..............  ..............  ..............  >=7...........  OP5             ...........  ...........           13
 tert-butylperoxide.
tert-Butyl monoperoxymaleate.....  UN3102           >52-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
tert-Butyl monoperoxymaleate.....  UN3103           <=52.................  >=48..........  ..............  ..............  ..............  OP6             ...........  ...........  ...........
tert-Butyl monoperoxymaleate.....  UN3108           <=52.................  ..............  ..............  >=48..........  ..............  OP8             ...........  ...........  ...........
tert-Butyl monoperoxymaleate [as   UN3108           <=52.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 a paste].
tert-Butyl peroxyacetate.........  UN3101           >52-77...............  >=23..........  ..............  ..............  ..............  OP5             ...........  ...........  ...........
tert-Butyl peroxyacetate.........  UN3103           >32-52...............  >=48..........  ..............  ..............  ..............  OP6             ...........  ...........  ...........
tert-Butyl peroxyacetate.........  UN3109           <=32.................  ..............  >=68..........  ..............  ..............  OP8             ...........  ...........  ...........
tert-Butyl peroxybenzoate........  UN3103           >77-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
tert-Butyl peroxybenzoate........  UN3105           >52-77...............  >=23..........  ..............  ..............  ..............  OP7             ...........  ...........            1
tert-Butyl peroxybenzoate........  UN3106           <=52.................  ..............  ..............  >=48..........  ..............  OP7             ...........  ...........  ...........
tert-Butyl peroxybenzoate........  UN3109           <=32.................  >=68..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........

[[Page 61818]]

 
tert-Butyl peroxybutyl fumarate..  UN3105           <=52.................  >=48..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
tert-Butyl peroxycrotonate.......  UN3105           <=77.................  >=23..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
tert-Butyl peroxydiethylacetate..  UN3113           <=100................  ..............  ..............  ..............  ..............  OP5                      20           25  ...........
tert-Butyl peroxy-2-               UN3113           >52-100..............  ..............  ..............  ..............  ..............  OP6                      20           25  ...........
 ethylhexanoate.
tert-Butyl peroxy-2-               UN3117           >32-52...............  ..............  >=48..........  ..............  ..............  OP8                      30           35  ...........
 ethylhexanoate.
tert-Butyl peroxy-2-               UN3118           <=52.................  ..............  ..............  >=48..........  ..............  OP8                      20           25  ...........
 ethylhexanoate.
tert-Butyl peroxy-2-               UN3119           <=32.................  ..............  >=68..........  ..............  ..............  OP8                      40           45  ...........
 ethylhexanoate.
tert-Butyl peroxy-2-               UN3106           <=12 + <=14..........  >=14..........  ..............  >=60..........  ..............  OP7             ...........  ...........  ...........
 ethylhexanoate [and] 2,2-di-
 (tert-Butylperoxy)butane.
tert-Butyl peroxy-2-               UN3115           <=31 + <=36..........  ..............  >=33..........  ..............  ..............  OP7                      35           40  ...........
 ethylhexanoate [and] 2,2-di-
 (tert-Butylperoxy)butane.
tert-Butyl peroxy-2-               UN3105           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 ethylhexylcarbonate.
tert-Butyl peroxyisobutyrate.....  UN3111           >52-77...............  ..............  >=23..........  ..............  ..............  OP5                      15           20  ...........
tert-Butyl peroxyisobutyrate.....  UN3115           <=52.................  ..............  >=48..........  ..............  ..............  OP7                      15           20  ...........
tert-Butylperoxy                   UN3103           <=77.................  >=23..........  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 isopropylcarbonate.
1-(2-tert-Butylperoxy isopropyl)-  UN3105           <=77.................  >=23..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 3-isopropenylbenzene.
1-(2-tert-Butylperoxy isopropyl)-  UN3108           <=42.................  ..............  ..............  >=58..........  ..............  OP8             ...........  ...........  ...........
 3-isopropenylbenzene.
tert-Butyl peroxy-2-               UN3103           <=100................  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 methylbenzoate.
tert-Butyl peroxyneodecanoate....  UN3115           >77-100..............  ..............  ..............  ..............  ..............  OP7                      -5            5  ...........
tert-Butyl peroxyneodecanoate....  UN3115           <=77.................  ..............  >=23..........  ..............  ..............  OP7                       0           10  ...........
tert-Butyl peroxyneodecanoate [as  UN3119           <=52.................  ..............  ..............  ..............  ..............  OP8                       0           10  ...........
 a stable dispersion in water].
tert-Butyl peroxyneodecanoate [as  UN3118           <=42.................  ..............  ..............  ..............  ..............  OP8                       0           10  ...........
 a stable dispersion in water
 (frozen)].
tert-Butyl peroxyneodecanoate....  UN3119           <=32.................  >=68..........  ..............  ..............  ..............  OP8                       0           10  ...........
tert-Butyl peroxyneoheptanoate...  UN3115           <=77.................  >=23..........  ..............  ..............  ..............  OP7                       0           10  ...........
tert-Butyl peroxyneoheptanoate     UN3117           <=42.................  ..............  ..............  ..............  ..............  OP8                       0           10  ...........
 [as a stable dispersion in
 water].
tert-Butyl peroxypivalate........  UN3113           >67-77...............  >=23..........  ..............  ..............  ..............  OP5                       0           10  ...........
tert-Butyl peroxypivalate........  UN3115           >27-67...............  ..............  >=33..........  ..............  ..............  OP7                       0           10  ...........
tert-Butyl peroxypivalate........  UN3119           <=27.................  ..............  >=73..........  ..............  ..............  OP8                      30           35  ...........
tert-Butylperoxy stearylcarbonate  UN3106           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
tert-Butyl peroxy-3,5,5-           UN3105           >37-100..............  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 trimethylhexanoate.
tert-Butyl peroxy-3,5,5-           UN3106           <=42.................  ..............  ..............  >=58..........  ..............  OP7             ...........  ...........  ...........
 trimethlyhexanoate.
tert-Butyl peroxy-3,5,5-           UN3109           <=37.................  ..............  >=63..........  ..............  ..............  OP8             ...........  ...........  ...........
 trimethylhexanoate.
3-Chloroperoxybenzoic acid.......  UN3102           >57-86...............  ..............  ..............  >=14..........  ..............  OP1             ...........  ...........  ...........
3-Chloroperoxybenzoic acid.......  UN3106           <=57.................  ..............  ..............  >=3...........  >=40..........  OP7             ...........  ...........  ...........
3-Chloroperoxybenzoic acid.......  UN3106           <=77.................  ..............  ..............  >=6...........  >=17..........  OP7             ...........  ...........  ...........
Cumyl hydroperoxide..............  UN3107           >90-98...............  <=10..........  ..............  ..............  ..............  OP8             ...........  ...........           13
Cumyl hydroperoxide..............  UN3109           <=90.................  >=10..........  ..............  ..............  ..............  OP8             ...........  ...........       13, 15
Cumyl peroxyneodecanoate.........  UN3115           <=87.................  >=13..........  ..............  ..............  ..............  OP7                     -10            0  ...........
Cumyl peroxyneodecanoate.........  UN3115           <=77.................  ..............  >=23..........  ..............  ..............  OP7                     -10            0  ...........
Cumyl peroxyneodecanoate [as a     UN3119           <=52.................  ..............  ..............  ..............  ..............  OP8                     -10            0  ...........
 stable dispersion in water].
Cumyl peroxyneoheptanoate........  UN3115           <=77.................  >=23..........  ..............  ..............  ..............  OP7                     -10            0  ...........
Cumyl peroxypivalate.............  UN3115           <=77.................  ..............  >=23..........  ..............  ..............  OP7                      -5            5  ...........
Cyclohexanone peroxide(s)........  UN3104           <=91.................  ..............  ..............  ..............  >=9...........  OP6             ...........  ...........           13
Cyclohexanone peroxide(s)........  UN3105           <=72.................  >=28..........  ..............  ..............  ..............  OP7             ...........  ...........            5
Cyclohexanone peroxide(s) [as a    UN3106           <=72.................  ..............  ..............  ..............  ..............  OP7             ...........  ...........        5, 21
 paste].

[[Page 61819]]

 
Cyclohexanone peroxide(s)........  Exempt           <=32.................  ..............  >68...........  ..............  ..............  Exempt          ...........  ...........           29
Diacetone alcohol peroxides......  UN3115           <=57.................  ..............  >=26..........  ..............  >=8...........  OP7                      40           45            5
Diacetyl peroxide................  UN3115           <=27.................  ..............  >=73..........  ..............  ..............  OP7                      20           25         8,13
Di-tert-amyl peroxide............  UN3107           <=100................  ..............  ..............  ..............  ..............  OP8             ...........  ...........  ...........
([3R- (3R, 5aS, 6S, 8aS, 9R, 10R,  UN3106           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 12S, 12aR**)]-Decahydro-10-
 methoxy-3, 6, 9-trimethyl-3, 12-
 epoxy-12H-pyrano [4, 3- j]-1, 2-
 benzodioxepin).
2,2-Di-(tert-amylperoxy)-butane..  UN3105           <=57.................  >=43..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
1,1-Di-(tert-                      UN3103           <=82.................  >=18..........  ..............  ..............  ..............  OP6             ...........  ...........  ...........
 amylperoxy)cyclohexane.
Dibenzoyl peroxide...............  UN3102           >52-100..............  ..............  ..............  <=48..........  ..............  OP2             ...........  ...........            3
Dibenzoyl peroxide...............  UN3102           >77-94...............  ..............  ..............  ..............  >=6...........  OP4             ...........  ...........            3
Dibenzoyl peroxide...............  UN3104           <=77.................  ..............  ..............  ..............  >=23..........  OP6             ...........  ...........  ...........
Dibenzoyl peroxide...............  UN3106           <=62.................  ..............  ..............  >=28..........  >=10..........  OP7             ...........  ...........  ...........
Dibenzoyl peroxide [as a paste]..  UN3106           >52-62...............  ..............  ..............  ..............  ..............  OP7             ...........  ...........           21
Dibenzoyl peroxide...............  UN3106           >35-52...............  ..............  ..............  >=48..........  ..............  OP7             ...........  ...........  ...........
Dibenzoyl peroxide...............  UN3107           >36-42...............  >=18..........  ..............  ..............  <=40..........  OP8             ...........  ...........  ...........
Dibenzoyl peroxide [as a paste]..  UN3108           <=56.5...............  ..............  ..............  ..............  >=15..........  OP8             ...........  ...........  ...........
Dibenzoyl peroxide [as a paste]..  UN3108           <=52.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........           21
Dibenzoyl peroxide [as a stable    UN3109           <=42.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 dispersion in water].
Dibenzoyl peroxide...............  Exempt           <=35.................  ..............  ..............  >=65..........  ..............  Exempt          ...........  ...........           29
Di-(4-tert-                        UN3114           <=100................  ..............  ..............  ..............  ..............  OP6                      30           35  ...........
 butylcyclohexyl)peroxydicarbonat
 e.
Di-(4-tert-                        UN3119           <=42.................  ..............  ..............  ..............  ..............  OP8                      30           35  ...........
 butylcyclohexyl)peroxydicarbonat
 e [as a stable dispersion in
 water].
Di-tert-butyl peroxide...........  UN3107           >52-100..............  ..............  ..............  ..............  ..............  OP8             ...........  ...........  ...........
Di-tert-butyl peroxide...........  UN3109           <=52.................  ..............  >=48..........  ..............  ..............  OP8             ...........  ...........           24
Di-tert-butyl peroxyazelate......  UN3105           <=52.................  >=48..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
2,2-Di-(tert-butylperoxy)butane..  UN3103           <=52.................  >=48..........  ..............  ..............  ..............  OP6             ...........  ...........  ...........
1,6-Di-(tert-                      UN3103           <=72.................  >=28..........  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxycarbonyloxy)hexane.
1,1-Di-(tert-                      UN3101           >80-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                      UN3103           >52-80...............  >=20..........  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxy)cyclohexane.
1,1-Di-(tert-butylperoxy)-         UN3103           <=72.................  ..............  >=28..........  ..............  ..............  OP5             ...........  ...........           30
 cyclohexane.
1,1-Di-(tert-                      UN3105           >42-52...............  >=48..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                      UN3106           <=42.................  >=13..........  ..............  >=45..........  ..............  OP7             ...........  ...........  ...........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                      UN3107           <=27.................  >=25..........  ..............  ..............  ..............  OP8             ...........  ...........           22
 butylperoxy)cyclohexane.
1,1-Di-(tert-                      UN3109           <=42.................  >=58..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 butylperoxy)cyclohexane.
1,1-Di-(tert-Butylperoxy)          UN3109           <=37.................  >=63..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 cyclohexane.
1,1-Di-(tert-                      UN3109           <=25.................  >=25..........  >=50..........  ..............  ..............  OP8             ...........  ...........  ...........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                      UN3109           <=13.................  >=13..........  >=74..........  ..............  ..............  OP8             ...........  ...........  ...........
 butylperoxy)cyclohexane.
Di-n-butyl peroxydicarbonate.....  UN3115           >27-52...............  ..............  >=48..........  ..............  ..............  OP7                     -15           -5  ...........
Di-n-butyl peroxydicarbonate.....  UN3117           <=27.................  ..............  >=73..........  ..............  ..............  OP8                     -10            0  ...........
Di-n-butyl peroxydicarbonate [as   UN3118           <=42.................  ..............  ..............  ..............  ..............  OP8                     -15           -5  ...........
 a stable dispersion in water
 (frozen)].
Di-sec-butyl peroxydicarbonate...  UN3113           >52-100..............  ..............  ..............  ..............  ..............  OP4                     -20          -10            6
Di-sec-butyl peroxydicarbonate...  UN3115           <=52.................  ..............  >=48..........  ..............  ..............  OP7                     -15           -5  ...........
Di-(tert-butylperoxyisopropyl)     UN3106           >42-100..............  ..............  ..............  <=57..........  ..............  OP7             ...........  ...........         1, 9
 benzene(s).
Di-(tert-butylperoxyisopropyl)     Exempt           <=42.................  ..............  ..............  >=58..........  ..............  Exempt          ...........  ...........  ...........
 benzene(s).

[[Page 61820]]

 
Di-(tert-butylperoxy)phthalate...  UN3105           >42-52...............  >=48..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
Di-(tert-butylperoxy)phthalate     UN3106           <=52.................  ..............  ..............  ..............  ..............  OP7             ...........  ...........           21
 [as a paste].
Di-(tert-butylperoxy)phthalate...  UN3107           <=42.................  >=58..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........
2,2-Di-(tert-butylperoxy)propane.  UN3105           <=52.................  >=48..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
2,2-Di-(tert-butylperoxy)propane.  UN3106           <=42.................  >=13..........  ..............  >=45..........  ..............  OP7             ...........  ...........  ...........
1,1-Di-(tert-butylperoxy)-3,3,5-   UN3101           >90-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5-   UN3103           >57-90...............  >=10..........  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5-   UN3103           <=77.................  ..............  >=23..........  ..............  ..............  OP5             ...........  ...........  ...........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5-   UN3103           <=90.................  ..............  >=10..........  ..............  ..............  OP5             ...........  ...........           30
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5-   UN3110           <=57.................  ..............  ..............  >=43..........  ..............  OP8             ...........  ...........  ...........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5-   UN3107           <=57.................  >=43..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5-   UN3107           <=32.................  >=26..........  >=42..........  ..............  ..............  OP8             ...........  ...........  ...........
 trimethylcyclohexane.
Dicetyl peroxydicarbonate........  UN3120           <=100................  ..............  ..............  ..............  ..............  OP8                      30           35  ...........
Dicetyl peroxydicarbonate [as a    UN3119           <=42.................  ..............  ..............  ..............  ..............  OP8                      30           35  ...........
 stable dispersion in water].
Di-4-chlorobenzoyl peroxide......  UN3102           <=77.................  ..............  ..............  ..............  >=23..........  OP5             ...........  ...........  ...........
Di-4-chlorobenzoyl peroxide......  Exempt           <=32.................  ..............  ..............  >=68..........  ..............  Exempt          ...........  ...........           29
Di-2,4-dichlorobenzoyl peroxide    UN3118           <=52.................  ..............  ..............  ..............  OP8...........  20                       25  ...........  ...........
 [as a paste].
Di-4-chlorobenzoyl peroxide [as a  UN3106           <=52.................  ..............  ..............  ..............  ..............  OP7             ...........  ...........           21
 paste].
Dicumyl peroxide.................  UN3110           >52-100..............  ..............  ..............  <=48..........  ..............  OP8             ...........  ...........            9
Dicumyl peroxide.................  Exempt           <=52.................  ..............  ..............  >=48..........  ..............  Exempt          ...........  ...........           29
Dicyclohexyl peroxydicarbonate...  UN3112           >91-100..............  ..............  ..............  ..............  ..............  OP3                      10           15  ...........
Dicyclohexyl peroxydicarbonate...  UN3114           <=91.................  ..............  ..............  ..............  >=9...........  OP5                      10           15  ...........
Dicyclohexyl peroxydicarbonate     UN3119           <=42.................  ..............  ..............  ..............  ..............  OP8                      15           20  ...........
 [as a stable dispersion in
 water].
Didecanoyl peroxide..............  UN3114           <=100................  ..............  ..............  ..............  ..............  OP6                      30           35  ...........
2,2-Di-(4,4-di(tert-               UN3106           <=42.................  ..............  ..............  >=58..........  ..............  OP7             ...........  ...........  ...........
 butylperoxy)cyclohexyl)propane.
2,2-Di-(4,4-di(tert-               UN3107           <=22.................  ..............  >=78..........  ..............  ..............  OP8             ...........  ...........  ...........
 butylperoxy)cyclohexyl)propane.
Di-2,4-dichlorobenzoyl peroxide..  UN3102           <=77.................  ..............  ..............  ..............  >=23..........  OP5             ...........  ...........  ...........
Di-2,4-dichlorobenzoyl peroxide    UN3106           <=52.................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 [as a paste with silicone oil].
Di-(2-ethoxyethyl)                 UN3115           <=52.................  ..............  >=48..........  ..............  ..............  OP7                     -10            0  ...........
 peroxydicarbonate.
Di-(2-ethylhexyl)                  UN3113           >77-100..............  ..............  ..............  ..............  ..............  OP5                     -20          -10  ...........
 peroxydicarbonate.
Di-(2-ethylhexyl)                  UN3115           <=77.................  ..............  >=23..........  ..............  ..............  OP7                     -15           -5  ...........
 peroxydicarbonate.
Di-(2-ethylhexyl)                  UN3119           <=62.................  ..............  ..............  ..............  ..............  OP8                     -15           -5  ...........
 peroxydicarbonate [as a stable
 dispersion in water].
Di-(2-ethylhexyl)                  UN3119           <=52.................  ..............  ..............  ..............  ..............  OP8                     -15           -5  ...........
 peroxydicarbonate [as a stable
 dispersion in water].
Di-(2-ethylhexyl)                  UN3120           <=52.................  ..............  ..............  ..............  ..............  OP8                     -15           -5  ...........
 peroxydicarbonate [as a stable
 dispersion in water (frozen)].
2,2-Dihydroperoxypropane.........  UN3102           <=27.................  ..............  ..............  >=73..........  ..............  OP5             ...........  ...........  ...........
Di-(1-hydroxycyclohexyl)peroxide.  UN3106           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
Diisobutyryl peroxide............  UN3111           >32-52...............  ..............  >=48..........  ..............  ..............  OP5                     -20          -10  ...........
Diisobutyryl peroxide............  UN3115           <=32.................  ..............  >=68..........  ..............  ..............  OP7                     -20          -10  ...........
Diisopropylbenzene                 UN3106           <=82.................  >=5...........  ..............  ..............  >=5...........  OP7             ...........  ...........           17
 dihydroperoxide.
Diisopropyl peroxydicarbonate....  UN3112           >52-100..............  ..............  ..............  ..............  ..............  OP2                     -15           -5  ...........

[[Page 61821]]

 
Diisopropyl peroxydicarbonate....  UN3115           <=52.................  ..............  >=48..........  ..............  ..............  OP7                     -20          -10  ...........
Diisopropyl peroxydicarbonate....  UN3115           <=32.................  >=68..........  ..............  ..............  ..............  OP7                     -15           -5  ...........
Dilauroyl peroxide...............  UN3106           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
Dilauroyl peroxide [as a stable    UN3109           <=42.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 dispersion in water].
Di-(3-methoxybutyl)                UN3115           <=52.................  ..............  >=48..........  ..............  ..............  OP7                      -5            5  ...........
 peroxydicarbonate.
Di-(2-methylbenzoyl)peroxide.....  UN3112           <=87.................  ..............  ..............  ..............  >=13..........  OP5                      30           35  ...........
Di-(4-methylbenzoyl)peroxide [as   UN3106           <=52.................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 a paste with silicone oil].
Di-(3-methylbenzoyl) peroxide +    UN3115           <=20 +...............  ..............  >=58..........  ..............  ..............  OP7                      35           40  ...........
 Benzoyl (3-methylbenzoyl)
 peroxide + Dibenzoyl peroxide.
                                   ...............  <=18 + <=4...........  ..............  ..............  ..............  ..............  ..............  ...........  ...........  ...........
2,5-Dimethyl-2,5-di-               UN3102           >82-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 (benzoylperoxy)hexane.
2,5-Dimethyl-2,5-di-               UN3106           <=82.................  ..............  ..............  >=18..........  ..............  OP7             ...........  ...........  ...........
 (benzoylperoxy)hexane.
2,5-Dimethyl-2,5-di-               UN3104           <=82.................  ..............  ..............  ..............  >=18..........  OP5             ...........  ...........  ...........
 (benzoylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-         UN3103           >90-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-         UN3105           >52-90...............  >=10..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-         UN3108           <=77.................  ..............  ..............  >=23..........  ..............  OP8             ...........  ...........  ...........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-         UN3109           <=52.................  >=48..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-         UN3108           <=47.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 butylperoxy)hexane [as a paste].
2,5-Dimethyl-2,5-di-(tert-         UN3101           >86-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxy)hexyne-3.
2,5-Dimethyl-2,5-di-(tert-         UN3103           >52-86...............  >=14..........  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxy)hexyne-3.
2,5-Dimethyl-2,5-di-(tert-         UN3106           <=52.................  ..............  ..............  >=48..........  ..............  OP7             ...........  ...........  ...........
 butylperoxy)hexyne-3.
2,5-Dimethyl-2,5-di-(2-            UN3113           <=100................  ..............  ..............  ..............  ..............  OP5                      20           25  ...........
 ethylhexanoylperoxy)hexane.
2,5-Dimethyl-2,5-                  UN3104           <=82.................  ..............  ..............  ..............  >=18..........  OP6             ...........  ...........  ...........
 dihydroperoxyhexane.
2,5-Dimethyl-2,5-di-(3,5,5-        UN3105           <=77.................  >=23..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 trimethylhexanoylperoxy)hexane.
1,1-Dimethyl-3-                    UN3117           <=52.................  >=48..........  ..............  ..............  ..............  OP8                       0           10  ...........
 hydroxybutylperoxyneoheptanoate.
Dimyristyl peroxydicarbonate.....  UN3116           <=100................  ..............  ..............  ..............  ..............  OP7                      20           25  ...........
Dimyristyl peroxydicarbonate [as   UN3119           <=42.................  ..............  ..............  ..............  ..............  OP8                      20           25  ...........
 a stable dispersion in water].
Di-(2-                             UN3115           <=52.................  >=48..........  ..............  ..............  ..............  OP7                     -10            0  ...........
 neodecanoylperoxyisopropyl)benze
 ne.
Di-(2-neodecanoyl-                 UN3119           <=42.................  ..............  ..............  ..............  ..............  OP8                     -15           -5  ...........
 peroxyisopropyl) benzene, as
 stable dispersion in water.
Di-n-nonanoyl peroxide...........  UN3116           <=100................  ..............  ..............  ..............  ..............  OP7                       0           10  ...........
Di-n-octanoyl peroxide...........  UN3114           <=100................  ..............  ..............  ..............  ..............  OP5                      10           15  ...........
Di-(2-                             UN3102           >85-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 phenoxyethyl)peroxydicarbonate.
Di-(2-                             UN3106           <=85.................  ..............  ..............  ..............  >=15..........  OP7             ...........  ...........  ...........
 phenoxyethyl)peroxydicarbonate.
Dipropionyl peroxide.............  UN3117           <=27.................  ..............  >=73..........  ..............  ..............  OP8                      15           20  ...........
Di-n-propyl peroxydicarbonate....  UN3113           <=100................  ..............  ..............  ..............  ..............  OP3                     -25          -15  ...........
Di-n-propyl peroxydicarbonate....  UN3113           <=77.................  ..............  >=23..........  ..............  ..............  OP5                     -20          -10  ...........
Disuccinic acid peroxide.........  UN3102           >72-100..............  ..............  ..............  ..............  ..............  OP4             ...........  ...........           18
Disuccinic acid peroxide.........  UN3116           <=72.................  ..............  ..............  ..............  >=28..........  OP7                      10           15  ...........
Di-(3,5,5-trimethylhexanoyl)       UN3115           >52-82...............  >=18..........  ..............  ..............  ..............  OP7                       0           10  ...........
 peroxide.

[[Page 61822]]

 
Di-(3,5,5-                         UN3119           <=52.................  ..............  ..............  ..............  ..............  OP8                      10           15  ...........
 trimethylhexanoyl)peroxide [as a
 stable dispersion in water].
Di-(3,5,5-                         UN3119           <=38.................  >=62..........  ..............  ..............  ..............  OP8                      20           25  ...........
 trimethylhexanoyl)peroxide.
Ethyl 3,3-di-(tert-                UN3105           <=67.................  >=33..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 amylperoxy)butyrate.
Ethyl 3,3-di-(tert-                UN3103           >77-100..............  ..............  ..............  ..............  ..............  OP5             ...........  ...........  ...........
 butylperoxy)butyrate.
Ethyl 3,3-di-(tert-                UN3105           <=77.................  >=23..........  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 butylperoxy)butyrate.
Ethyl 3,3-di-(tert-                UN3106           <=52.................  ..............  ..............  >=48..........  ..............  OP7             ...........  ...........  ...........
 butylperoxy)butyrate.
1-(2-ethylhexanoylperoxy)-1,3-     UN3115           <=52.................  >=45..........  >=10..........  ..............  ..............  OP7                     -20          -10  ...........
 Dimethylbutyl peroxypivalate.
tert-Hexyl peroxyneodecanoate....  UN3115           <=71.................  >=29..........  ..............  ..............  ..............  OP7                       0           10  ...........
tert-Hexyl peroxypivalate........  UN3115           <=72.................  ..............  >=28..........  ..............  ..............  OP7                      10           15  ...........
3-Hydroxy-1,1-dimethylbutyl        UN3115           <=77.................  >=23..........  ..............  ..............  ..............  OP7                      -5            5  ...........
 peroxyneodecanoate.
3-Hydroxy-1,1-dimethylbutyl        UN3119           <=52.................  ..............  ..............  ..............  ..............  OP8                      -5            5  ...........
 peroxyneodecanoate [as a stable
 dispersion in water].
3-Hydroxy-1,1-dimethylbutyl        UN3117           <=52.................  >=48..........  ..............  ..............  ..............  OP8                      -5            5  ...........
 peroxyneodecanoate.
Isopropyl sec-butyl                UN3111           <=52 + <=28..........  ..............  ..............  ..............  ..............  OP5                     -20          -10  ...........
 peroxydicarbonat + Di-sec-butyl
 peroxydicarbonate + Di-isopropyl
 peroxydicarbonate.
                                   ...............  + <=22...............  ..............  ..............  ..............  ..............  ..............  ...........  ...........  ...........
Isopropyl sec-butyl                UN3115           <=32 + <=15..........  >=38..........  ..............  ..............  ..............  OP7                     -20          -10  ...........
 peroxydicarbonate + Di-sec-butyl
 peroxydicarbonate + Di-isopropyl
 peroxydicarbonate.
                                   ...............  -18..................  ..............  ..............  ..............  ..............  ..............  ...........  ...........  ...........
                                   ...............  + <=12...............  ..............  ..............  ..............  ..............  ..............  ...........  ...........  ...........
                                   ...............  -15..................  ..............  ..............  ..............  ..............  ..............  ...........  ...........  ...........
Isopropylcumyl hydroperoxide.....  UN3109           <=72.................  >=28..........  ..............  ..............  ..............  OP8             ...........  ...........           13
p-Menthyl hydroperoxide..........  UN3105           >72-100..............  ..............  ..............  ..............  ..............  OP7             ...........  ...........           13
p-Menthyl hydroperoxide..........  UN3109           <=72.................  >=28..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........
Methylcyclohexanone peroxide(s)..  UN3115           <=67.................  ..............  >=33..........  ..............  ..............  OP7                      35           40  ...........
Methyl ethyl ketone peroxide(s)..  UN3101           <=52.................  >=48..........  ..............  ..............  ..............  OP5             ...........  ...........        5, 13
Methyl ethyl ketone peroxide(s)..  UN3105           <=45.................  >=55..........  ..............  ..............  ..............  OP7             ...........  ...........            5
Methyl ethyl ketone peroxide(s)..  UN3107           <=40.................  >=60..........  ..............  ..............  ..............  OP8             ...........  ...........            7
Methyl isobutyl ketone             UN3105           <=62.................  >=19..........  ..............  ..............  ..............  OP7             ...........  ...........        5, 23
 peroxide(s).
Methyl isopropyl ketone            UN3109           (See remark 31)......  >=70..........  ..............  ..............  ..............  OP8             ...........  ...........           31
 peroxide(s).
Organic peroxide, liquid, sample.  UN3103           .....................  ..............  ..............  ..............  ..............  OP2             ...........  ...........           12
Organic peroxide, liquid, sample,  UN3113           .....................  ..............  ..............  ..............  ..............  OP2             ...........  ...........           12
 temperature controlled.
Organic peroxide, solid, sample..  UN3104           .....................  ..............  ..............  ..............  ..............  OP2             ...........  ...........           12
Organic peroxide, solid, sample,   UN3114           .....................  ..............  ..............  ..............  ..............  OP2             ...........  ...........           12
 temperature controlled.
3,3,5,7,7-Pentamethyl-1,2,4-       UN3107           <=100................  ..............  ..............  ..............  ..............  OP8             ...........  ...........  ...........
 Trioxepane.
Peroxyacetic acid, type D,         UN3105           <=43.................  ..............  ..............  ..............  ..............  OP7             ...........  ...........       13, 20
 stabilized.
Peroxyacetic acid, type E,         UN3107           <=43.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........       13, 20
 stabilized.
Peroxyacetic acid, type F,         UN3109           <=43.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........   13, 20, 28
 stabilized.
Peroxyacetic acid or peracetic     UN3107           <=36.................  ..............  ..............  ..............  >=15..........  OP8             ...........  ...........   13, 20, 28
 acid [with not more than 7%
 hydrogen peroxide].

[[Page 61823]]

 
Peroxyacetic acid or peracetic     Exempt           <=6..................  ..............  ..............  ..............  >=60..........  Exempt          ...........  ...........           28
 acid [with not more than 20%
 hydrogen peroxide].
Peroxyacetic acid or peracetic     UN3109           <=17.................  ..............  ..............  ..............  ..............  OP8             ...........  ...........   13, 20, 28
 acid [with not more than 26%
 hydrogen peroxide].
Peroxylauric acid................  UN3118           <=100................  ..............  ..............  ..............  ..............  OP8                      35           40  ...........
Pinanyl hydroperoxide............  UN3105           >56-100..............  ..............  ..............  ..............  ..............  OP7             ...........  ...........           13
Pinanyl hydroperoxide............  UN3109           <=56.................  >=44..........  ..............  ..............  ..............  OP8             ...........  ...........  ...........
Polyether poly-tert-               UN3107           <=52.................  ..............  >=48..........  ..............  ..............  OP8             ...........  ...........  ...........
 butylperoxycarbonate.
Tetrahydronaphthyl hydroperoxide.  UN3106           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
1,1,3,3-Tetramethylbutyl           UN3105           <=100................  ..............  ..............  ..............  ..............  OP7             ...........  ...........  ...........
 hydroperoxide.
1,1,3,3-Tetramethylbutyl peroxy-2- UN3115           <=100................  ..............  ..............  ..............  ..............  OP7                      15           20  ...........
 ethylhexanoate.
1,1,3,3-Tetramethylbutyl           UN3115           <=72.................  ..............  >=28..........  ..............  ..............  OP7                      -5            5  ...........
 peroxyneodecanoate.
1,1,3,3-Tetramethylbutyl           UN3119           <=52.................  ..............  ..............  ..............  ..............  OP8                      -5            5  ...........
 peroxyneodecanoate [as a stable
 dispersion in water].
1,1,3,3-tetramethylbutyl           UN3115           <=77.................  >=23..........  ..............  ..............  ..............  OP7                       0           10  ...........
 peroxypivalate.
3, 6, 9-Triethyl-3, 6, 9-          UN3110           <=17.................  >=18..........  ..............  >=65..........  ..............  OP8             ...........  ...........  ...........
 trimethyl-1, 4, 7-triperoxonane.
3,6,9-Triethyl-3,6,9-trimethyl-    UN3105           <=42.................  >=58..........  ..............  ..............  ..............  OP7             ...........  ...........           26
 1,4,7-triperoxonane.
Di-(3, 5, 5-trimethylhexanoyl)     UN3119           >38-52...............  >=48..........  ..............  ..............  ..............  OP8                      10           15  ...........
 peroxide.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. For domestic shipments, OP8 is authorized.
2. Available oxygen must be <4.7%.
3. For concentrations <80% OP5 is allowed. For concentrations of at least 80% but <85%, OP4 is allowed. For concentrations of at least 85%, maximum package size is OP2.
4. The diluent may be replaced by di-tert-butyl peroxide.
5. Available oxygen must be <=9% with or without water.
6. For domestic shipments, OP5 is authorized.
7. Available oxygen must be <=8.2% with or without water.
8. Only non-metallic packagings are authorized.
9. For domestic shipments this material may be transported under the provisions of paragraph (h)(3)(xii) of this section.
10. [Reserved]
11. [Reserved]
12. Samples may only be offered for transportation under the provisions of paragraph (b)(2) of this section.
13. ``Corrosive'' subsidiary risk label is required.
14. [Reserved]
15. No ``Corrosive'' subsidiary risk label is required for concentrations below 80%.
16. With <6% di-tert-butyl peroxide.
17. With <=8% 1-isopropylhydroperoxy-4-isopropylhydroxybenzene.
18. Addition of water to this organic peroxide will decrease its thermal stability.
19. [Reserved]
20. Mixtures with hydrogen peroxide, water and acid(s).
21. With diluent type A, with or without water.
22. With >=36% diluent type A by mass, and in addition ethylbenzene.
23. With >=19% diluent type A by mass, and in addition methyl isobutyl ketone.
24. Diluent type B with boiling point >100 C.
25. No ``Corrosive'' subsidiary risk label is required for concentrations below 56%.
26. Available oxygen must be <=7.6%.
27. Formulations derived from distillation of peroxyacetic acid originating from peroxyacetic acid in a concentration of not more than 41% with water, total active oxygen less than or equal to
  9.5% (peroxyacetic acid plus hydrogen peroxide).
28. For the purposes of this section, the names ``Peroxyacetic acid'' and ``Peracetic acid'' are synonymous.
29. Not subject to the requirements of this subchapter for Division 5.2.
30. Diluent type B with boiling point >130 [deg]C (266[emsp14][deg]F).
31. Available oxygen <=6.7%.

* * * * *
    (e) * * *

                                           Organic Peroxide IBC Table
----------------------------------------------------------------------------------------------------------------
                                                                 Maximum
      UN No.          Organic peroxide       Type of IBC        quantity          Control           Emergency
                                                                (liters)        temperature        temperature
----------------------------------------------------------------------------------------------------------------
3109.............  ORGANIC PEROXIDE,      .................  ..............  .................  ................
                    TYPE F, LIQUID..
                   tert-Butyl cumyl       31HA1                        1000  .................  ................
                    peroxide.
                   tert-Butyl             31A                          1250  .................  ................
                    hydroperoxide, not
                    more than 72% with
                    water.
                   tert-Butyl             31A                          1250  .................  ................
                    peroxyacetate, not
                    more than 32% in
                    diluent type A.

[[Page 61824]]

 
                                          31HA1                        1000  .................  ................
                   tert-Butyl             31A                          1250  .................  ................
                    peroxybenzoate, not
                    more than 32% in
                    diluent type A.
                   tert-Butyl peroxy-     31A                          1250  .................  ................
                    3,5,5-
                    trimethylhexanoate,
                    not more than 37% in
                    diluent type A.
                                          31HA1                        1000  .................  ................
                   Cumyl hydroperoxide,   31HA1                        1250  .................  ................
                    not more than 90% in
                    diluent type A.
                   Dibenzoyl peroxide,    31H1                         1000  .................  ................
                    not more than 42% as
                    a stable dispersion.
                   Di-tert-butyl          31A                          1250  .................  ................
                    peroxide, not more
                    than 52% in diluent
                    type B.
                                          31HA1                        1000  .................  ................
                   1,1-Di-(tert-          31A                          1250  .................  ................
                    Butylperoxy)
                    cyclohexane, not
                    more than 37% in
                    diluent type A.
                   1,1-Di-(tert-          31H1                         1000  .................  ................
                    butylperoxy)
                    cyclohexane, not
                    more than 42% in
                    diluent type A.
                   Dicumyl peroxide,      31A                          1250  .................  ................
                    less than or equal
                    to 100%.
                                          31HA1                        1000  .................  ................
                   Dilauroyl peroxide,    31HA1                        1000  .................  ................
                    not more than 42%,
                    stable dispersion,
                    in water.
                   Isopropyl cumyl        31HA1                        1250  .................  ................
                    hydroperoxide, not
                    more than 72% in
                    diluent type A.
                   p-Menthyl              31HA1                        1250  .................  ................
                    hydroperoxide, not
                    more than 72% in
                    diluent type A.
                   Peroxyacetic acid,     31A                          1500  .................  ................
                    stabilized, not more
                    than 17%.
                                          31H1                         1500  .................  ................
                                          31H2                         1500  .................  ................
                                          31HA1                        1500  .................  ................
                   Peroxyacetic acid,     31A                          1500  .................  ................
                    with not more than
                    26% hydrogen
                    peroxide.
                                          31HA1                        1500  .................  ................
                   Peroxyacetic acid,     31A                          1500  .................  ................
                    type F, stabilized.
                                          31HA1                        1500  .................  ................
 3110              ORGANIC PEROXIDE TYPE  .................  ..............  .................  ................
                    F, SOLID..
                   Dicumyl peroxide,      31A                          2000  .................  ................
                    less than or equal
                    to 100%.
                                          31H1               ..............  .................  ................
                                          31HA1              ..............  .................  ................
 3119              ORGANIC PEROXIDE,      .................  ..............  .................  ................
                    TYPE F, LIQUID,
                    TEMPERATURE
                    CONTROLLED.
                   tert-Amyl              31A                          1250  + 10 [deg]C......  + 15 [deg]C
                    peroxypivalate, not
                    more than 32% in
                    diluent type A.
                   tert-Butyl peroxy-2-   31HA1                        1000  + 30 [deg]C......  + 35 [deg]C
                    ethylhexanoate, not
                    more than 32% in
                    diluent type B.
                                          31A                          1250  + 30 [deg]C......  + 35 [deg]C
                   tert-Butyl             31A                          1250  0 [deg]C.........  + 10 [deg]C
                    peroxyneodecanoate,
                    not more than 32% in
                    diluent type A.
                   tert-Butyl             31A                          1250  -5 [deg]C........  + 5 [deg]C
                    peroxyneodecanoate,
                    not more than 52%,
                    stable dispersion,
                    in water.
                   tert-Butyl             31HA1                        1000  + 10 [deg]C......  + 15 [deg]C
                    peroxypivalate, not
                    more than 27% in
                    diluent type B.
                                          31A                          1250  + 10 [deg]C......  + 15 [deg]C
                   Di-(4-tert-            31HA1                        1000  + 30 [deg]C......  + 35 [deg]C
                    butylcyclohexyl)
                    peroxydicarbonate,
                    not more than 42%,
                    stable dispersion,
                    in water.
                   Dicetyl                31HA1                        1000  + 30 [deg]C......  + 35 [deg]C
                    peroxydicarbonate,
                    not more than 42%,
                    stable dispersion,
                    in water.
                   Dicyclohexylperoxydic  31A                          1250  + 10 [deg]C......  + 15 [deg]C
                    arbonate, not more
                    than 42% as a stable
                    dispersion, in water.
                   Di-(2-ethylhexyl)      31A                          1250  -20 [deg]C.......  -10 [deg]C
                    peroxydicarbonate,
                    not more than 62%,
                    stable dispersion,
                    in water.
                                          31HA1                        1000  -20 [ordm]C......  -10 [ordm]C
                   Diisobutyryl           31HA1                        1000  -20 [deg]C.......  -10 [deg]C
                    peroxide, not more
                    than 28% as a stable
                    dispersion in water.
                                          31A                          1250  -20 [deg]C.......  -10 [deg]C
                   Diisobutyryl           31HA1                        1000  -25 [deg]C.......  -15 [deg]C
                    peroxide, not more
                    than 42% as a stable
                    dispersion in water.
                                          31A                          1250  -25 [deg]C.......  -15 [deg]C
                   Dimyristyl             31HA1                        1000  + 15 [deg]C......  + 20 [deg]C
                    peroxydicarbonate,
                    not more than 42%,
                    stable dispersion,
                    in water.
                   Di-(2-                 31A                          1250  -15 [deg]C.......  -5 [deg]C
                    neodecanoylperoxyiso
                    propyl) benzene, not
                    more than 42%,
                    stable dispersion,
                    in water.
                   Di-(3,5,5-             31HA1                        1000  + 10 [deg]C......  + 15 [deg]C
                    trimethylhexanoyl)
                    peroxide, not more
                    than 52% in diluent
                    type A.
                                          31A                          1250  + 10 [deg]C......  + 15 [deg]C

[[Page 61825]]

 
                   Di-(3,5,5-             31A                          1250  + 10 [deg]C......  + 15 [deg]C
                    trimethylhexanoyl)
                    peroxide, not more
                    than 52%, stable
                    dispersion, in water.
                   3-Hydroxy-1,1-         31A                          1250  -15 [deg]C.......  -5 [deg]C
                    dimethylbutyl peroxy-
                    neodecanoate, not
                    more than 52%,
                    stable dispersion,
                    in water.
                   1,1,3,3-               31HA1                        1000  +15 [ordm]C......  +20 [ordm]C
                    Tetramethylbutyl
                    peroxy-2-
                    ethylhexanoate, not
                    more than 67%, in
                    diluent type A.
                   1,1,3,3-               31A                          1250  -5 [deg]C........  + 5 [deg]C
                    Tetramethylbutyl
                    peroxyneodecanoate,
                    not more than 52%,
                    stable dispersion,
                    in water.
                                          31HA1                        1000  -5 [deg]C........  + 5 [deg]C
----------------------------------------------------------------------------------------------------------------

* * * * *
0
34. In Sec.  173.301b, paragraphs (a)(2), (c)(1), and (g) are revised 
to read as follows:


Sec.  173.301b  Additional general requirements for shipment of UN 
pressure receptacles.

    (a) * * *
    (2) The gases or gas mixtures must be compatible with the UN 
pressure receptacle and valve materials as prescribed for metallic 
materials in ISO 11114-1:2012 (IBR, see Sec.  171.7 of this subchapter) 
and for non-metallic materials in ISO 11114-2:2013 Gas cylinders--
Compatibility of cylinder and valve materials with gas contents--Part 
2: Non-metallic materials (IBR, see Sec.  171.7 of this subchapter).
* * * * *
    (c) * * *
    (1) When the use of a valve is prescribed, the valve must conform 
to the requirements in ISO 10297:2006 (IBR, see Sec.  171.7 of this 
subchapter). Until December 31, 2020, the manufacture of a valve 
conforming to the requirements in ISO 10297:2006 (IBR, see Sec.  171.7 
of this subchapter) is authorized. Until December 31, 2008, the 
manufacture of a valve conforming to the requirements in ISO 10297:1999 
(IBR, see Sec.  171.7 of this subchapter) is authorized.
* * * * *
    (g) Composite cylinders in underwater use. A composite cylinder 
certified to ISO-11119-2 or ISO-11119-3 may not be used for underwater 
applications unless the cylinder is manufactured in accordance with the 
requirements for underwater use and is marked ``UW'' as prescribed in 
Sec.  178.71(q)(18) of this subchapter.
0
35. In Sec.  173.303, paragraph (f)(1) is revised to read as follows:


Sec.  173.303  Charging of cylinders with compressed gas in a solution 
(acetylene).

* * * * *
    (f) * * *
    (1) UN cylinders and bundles of cylinders are authorized for the 
transport of acetylene gas as specified in this section.
    (i) Each UN acetylene cylinder must conform to ISO 3807:2013:Gas 
cylinders--Acetylene cylinders--Basic requirements and type testing 
(IBR, see Sec.  171.7 of this subchapter), have a homogeneous 
monolithic porous mass filler and be charged with acetone or a suitable 
solvent as specified in the standard. UN acetylene cylinders must have 
a minimum test pressure of 52 bar and may be filled up to the pressure 
limits specified in ISO 3807-2013. The use of UN tubes and MEGCs is not 
authorized.
    (ii) Until December 31, 2020, cylinders conforming to the 
requirements in ISO 3807-2: Cylinders for acetylene--Basic 
requirements--Part 2: Cylinders with fusible plugs. (IBR, see Sec.  
171.7 of this subchapter), having a homogeneous monolithic porous mass 
filler and charged with acetone or a suitable solvent as specified in 
the standard are authorized. UN acetylene cylinders must have a minimum 
test pressure of 52 bar and may be filled up to the pressure limits 
specified in ISO 3807-2.
* * * * *
0
36. In 173.304b, paragraph (b)(5) is added to read as follows:


Sec.  173.304b  Additional requirements for shipment of liquefied 
compressed gases in UN pressure receptacles.

* * * * *
    (b) * * *
    (5) For liquefied gases charged with compressed gases, both 
components--the liquid phase and the compressed gas--have to be taken 
into consideration in the calculation of the internal pressure in the 
pressure receptacle. The maximum mass of contents per liter of water 
capacity shall not exceed 95 percent of the density of the liquid phase 
at 50 [deg]C (122[emsp14][deg]F); in addition, the liquid phase shall 
not completely fill the pressure receptacle at any temperature up to 60 
[deg]C (140[emsp14][deg]F). When filled, the internal pressure at 65 
[deg]C (149[emsp14][deg]F) shall not exceed the test pressure of the 
pressure receptacles. The vapor pressures and volumetric expansions of 
all substances in the pressure receptacles shall be considered. The 
maximum filling limits may be determined using the procedure in (3)(e) 
of P200 of the UN Recommendations.
* * * * *
0
37. Section 173.310, is revised to read as follows:


Sec.  173.310  Exceptions for radiation detectors.

    Radiation detectors, radiation sensors, electron tube devices, or 
ionization chambers, herein referred to as ``radiation detectors,'' 
that contain only Division 2.2 gases in non-refillable cylinders, are 
excepted from the specification packaging in this subchapter and, 
except when transported by air, from labeling and placarding 
requirements of this subchapter when designed, packaged, and 
transported as follows:
    (a) Radiation detectors must be single-trip, hermetically sealed, 
welded metal inside containers that will not fragment upon impact.
    (b) Radiation detectors must not have a design pressure exceeding 
5.00 MPa (725 psig) and a capacity exceeding 405 fluid ounces (731 
cubic inches). They must be designed and fabricated with a burst 
pressure of not less than three times the design pressure if the 
radiation detector is equipped with a pressure relief device, and not 
less than four times the design pressure if the detector is not 
equipped with a pressure relief device.
    (c) Radiation detectors must be shipped in a strong outer packaging 
capable of withstanding a drop test of at least 1.2 meters (4 feet) 
without breakage of the radiation detector or rupture of the outer 
packaging. If the radiation detector is shipped as part of other 
equipment, the equipment must be packaged in strong outer packaging or 
the equipment itself must provide an equivalent level of protection.

[[Page 61826]]

    (d) Emergency response information accompanying each shipment and 
available from each emergency response telephone number for radiation 
detectors must identify those receptacles that are not fitted with a 
pressure relief device and provide appropriate guidance for exposure to 
fire.
    (e) Transport in accordance with this section must be noted on the 
shipping paper.
    (f) Radiation detectors, including detectors in radiation detection 
systems, are not subject to any other requirements of this subchapter 
if the detectors meet the requirements in paragraphs (a) through (d) of 
this section and the capacity of detector receptacles does not exceed 
50 ml (1.69 fluid ounces).
0
38. In Sec.  173.335, paragraph (a) is revised to read as follows:


Sec.  173.335  Chemical under pressure n.o.s.

    (a) General requirements. A cylinder filled with a chemical under 
pressure must be offered for transportation in accordance with the 
requirements of this section and Sec.  172.301 of this subchapter. In 
addition, a DOT specification cylinder must meet the requirements in 
Sec. Sec.  173.301a, 173.302, 173.302a, and 173.305, as applicable. UN 
pressure receptacles must meet the requirements in Sec. Sec.  173.301b, 
173.302b, and 173.304b, as applicable. Where more than one section 
applies to a cylinder, the most restrictive requirements must be 
followed.
* * * * *

PART 175--CARRIAGE BY AIRCRAFT

0
39. The authority citation for part 175 continues to read as follows:

    Authority: 49 U.S.C. 5101-5128, 44701; 49 CFR 1.81 and 1.97.

0
40. In Sec.  175.10, revise paragraph (a)(7) to read as follows:


Sec.  175.10  Exceptions for passengers, crewmembers, and air 
operators.

* * * * *
    (a) * * *
    (7) A small medical or clinical mercury thermometer for personal 
use, when carried in a protective case in checked baggage.
* * * * *
0
41. Section 175.25 is revised to read as follows:


Sec.  175.25  Passenger notification system.

    (a) Each person who engages in for hire air transportation of 
passengers must effectively inform passengers about hazardous materials 
that passengers are forbidden to transport on aircraft and must 
accomplish this through the development, implementation, and 
maintenance of a passenger notification system.
    (b) Passenger notification system requirements. The passenger 
notification system required by paragraph (a) of this section must 
ensure that:
    (1) A passenger is presented with information required under 
paragraph (a) of this section at the point of ticket purchase or, if 
this is not practical, in another way prior to boarding pass issuance;
    (2) A passenger is presented with information required under 
paragraph (a) of this section at the point of boarding pass issuance 
(i.e., check-in), or when no boarding pass is issued, prior to boarding 
the aircraft;
    (3) A passenger, where the ticket purchase and/or boarding pass 
issuance can be completed by a passenger without the involvement of 
another person, acknowledges that they have been presented with the 
information required under paragraph (a) of this section; and
    (4) A passenger is presented with information required under 
paragraph (a) of this section at each of the places at an airport where 
tickets are issued, boarding passes are issued, passenger baggage is 
dropped off, aircraft boarding areas are maintained, and at any other 
location where boarding passes are issued and/or checked baggage is 
accepted. This information must include visual examples of forbidden 
hazardous materials.
    (c) Aircraft operator manual requirements. For certificate holders 
under 14 CFR parts 121 and 135, procedures and information necessary to 
allow personnel to implement and maintain the passenger notification 
system required in paragraphs (a) and (b) of this section must be 
described in an operations manual and/or other appropriate manuals in 
accordance with 14 CFR parts 121 or 135.

0
42. In Sec.  175.33, revise paragraph (a)(3) to read as follows:


Sec.  175.33  Shipping paper and notification of pilot-in-command.

* * * * *
    (a) * * *
    (3) The net quantity or gross weight, as applicable, for each 
package except those containing Class 7 (radioactive) materials. For a 
shipment consisting of multiple packages containing hazardous materials 
bearing the same proper shipping name and identification number, only 
the total quantity and an indication of the quantity of the largest and 
smallest package at each loading location need to be provided. For 
consumer commodities, the information provided may be either the gross 
mass of each package or the average gross mass of the packages as shown 
on the shipping paper;
* * * * *
0
43. Section 175.900 is revised to read as follows:


Sec.  175.900  Handling requirements for carbon dioxide, solid (dry 
ice).

    Carbon dioxide, solid (dry ice) when shipped by itself or when used 
as a refrigerant for other commodities, may be carried only if the 
operator has made suitable arrangements based on the aircraft type, the 
aircraft ventilation rates, the method of packing and stowing, whether 
animals will be carried on the same flight and other factors. The 
operator must ensure that the ground staff is informed that the dry ice 
is being loaded or is on board the aircraft. For arrangements between 
the shipper and operator, see Sec.  173.217 of this subchapter. Where 
dry ice is contained in a unit load device (ULD) prepared by a single 
shipper in accordance with Sec.  173.217 of this subchapter and the 
operator after the acceptance adds additional dry ice, the operator 
must ensure that the information provided to the pilot-in-command and 
the marking on the ULD when used as a packaging reflects that revised 
quantity of dry ice.

PART 176--CARRIAGE BY VESSEL

0
44. The authority citation for part 176 continues to read as follows:

    Authority:  49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97.

0
45. In Sec.  176.83, paragraph (a)(4)(ii) is revised to read as 
follows:


Sec.  176.83  Segregation.

    (a) * * *
    (4) * * *
    (ii) Between hazardous materials of different classes which 
comprise a group of substances that do not react dangerously with each 
other. The following materials are grouped by compatibility:
    (A) Hydrogen peroxide, aqueous solutions with not less than 8 
percent but less than 20 percent hydrogen peroxide (stabilized as 
necessary); Hydrogen peroxide, aqueous solutions with not less than 20 
percent but not more than 40 percent hydrogen peroxide; Hydrogen 
peroxide, aqueous solutions with more than 40 percent but not more than 
60 percent hydrogen peroxide; Hydrogen peroxide and peroxyacetic acid 
mixtures, stabilized with acids, water and not more than 5

[[Page 61827]]

percent peroxyacetic acid; Organic peroxide type D, liquid; Organic 
peroxide type E, liquid; Organic peroxide type F, liquid;
    (B) Dichlorosilane, Silicon tetrachloride, and Trichlorosilane; and
    (C) Organometallic substance, solid, pyrophoric, Organometallic 
substance, liquid, pyrophoric, Organometallic substance, solid, 
pyrophoric, water-reactive, Organometallic substance, liquid, 
pyrophoric, water-reactive, Organometallic substance, solid, water-
reactive, Organometallic substance, solid, water-reactive, flammable, 
Organometallic substance, solid, water-reactive, self-heating, 
Organometallic substance, liquid, water-reactive, Organometallic 
substance, liquid, water-reactive, flammable, and Organometallic 
substance, solid, self-heating.
* * * * *
0
46. In Sec.  176.84(b), table provisions 149 and 150 are added:


Sec.  176.84  Other requirements for stowage, cargo handling, and 
segregation for cargo vessels and passenger vessels.

    (b) * * *

------------------------------------------------------------------------
            Code                              Provisions
------------------------------------------------------------------------
 
                              * * * * * * *
149.........................  For engines or machinery containing fuels
                               with flash point equal or greater than 23
                               [deg]C (73.4 [deg]F) , stowage Category
                               A.
150.........................  For uranium metal pyrophoric and thorium
                               metal pyrophoric stowage, category D
                               applies.
 
                              * * * * * * *
------------------------------------------------------------------------

* * * * *
0
47. Section 176.905 is revised as follows:


Sec.  176.905  Stowage of vehicles.

    (a) A vehicle powered by an internal combustion engine, a fuel 
cell, batteries or a combination thereof is subject to the following 
requirements when carried as cargo on a vessel:
    (1) Before being loaded on a vessel, each vehicle must be inspected 
for signs of leakage from batteries, engines, fuel cells, compressed 
gas cylinders or accumulators, or fuel tank(s) when applicable, and any 
identifiable faults in the electrical system that could result in short 
circuit or other unintended electrical source of ignition. A vehicle 
showing any signs of leakage or electrical fault may not be 
transported.
    (2) For flammable liquid powered vehicles, the fuel tank(s) 
containing the flammable liquid, may not be more than one fourth full 
and the flammable liquid must not exceed 250 L (66 gal) unless 
otherwise approved by the Associate Administrator.
    (3) For flammable gas powered vehicles, the fuel shut-off valve of 
the fuel tank(s) must be securely closed.
    (4) For vehicles with batteries installed, the batteries shall be 
protected from damage, short circuit, and accidental activation during 
transport. Except for vehicles with prototype or low production lithium 
batteries (see Sec.  173.185(d) of this subchapter) securely installed, 
each lithium battery must be of a type that has successfully passed 
each test in the UN Manual of Tests and Criteria (IBR, see Sec.  171.7 
of this subchapter), as specified in Sec.  173.185(a) of this 
subchapter, unless approved by the Associate Administrator. Where a 
lithium battery installed in a vehicle is damaged or defective, the 
battery must be removed and transported according to Sec.  173.185(f) 
of this subchapter, unless otherwise approved by the Associate 
Administrator.
    (5) Whenever possible, each vehicle must be stowed to allow for its 
inspection during transportation.
    (6) Vehicles may be refueled when necessary in the hold of a vessel 
in accordance with Sec.  176.78.
    (b) All equipment used for handling vehicles must be designed so 
that the fuel tank and the fuel system of the vehicle are protected 
from stress that might cause rupture or other damage incident to 
handling.
    (c) Two hand-held, portable, dry chemical fire extinguishers of at 
least 4.5 kg (10 pounds) capacity each must be separately located in an 
accessible location in each hold or compartment in which any vehicle is 
stowed.
    (d) ``NO SMOKING'' signs must be conspicuously posted at each 
access opening to the hold or compartment.
    (e) Each portable electrical light, including a flashlight, used in 
the stowage area must be an approved, explosion-proof type. All 
electrical connections for any light must be made to outlets outside 
the space in which any vehicle is stowed.
    (f) Each hold or compartment must be ventilated and fitted with an 
overhead water sprinkler system or fixed fire extinguisher system.
    (g) Each hold or compartment must be equipped with a smoke or fire 
detection system capable of alerting personnel on the bridge.
    (h) All electrical equipment in the hold or compartment other than 
fixed explosion-proof lighting must be disconnected from its power 
source at a location outside the hold or compartment during the 
handling and transportation of any vehicle. Where the disconnecting 
means is a switch or circuit breaker, it must be locked in the open 
position until all vehicles have been removed.
    (i) Exceptions. A vehicle is not subject to the requirements of 
this subchapter if any of the following are met:
    (1) The vehicle is stowed in a hold or compartment designated by 
the administration of the country in which the vessel is registered as 
specially designed and approved for vehicles and there are no signs of 
leakage from the battery, engine, fuel cell, compressed gas cylinder or 
accumulator, or fuel tank, as appropriate. For vehicles with batteries 
connected and fuel tanks containing gasoline transported by U.S. 
vessels, see 46 CFR 70.10-1 and 90.10-38;
    (i) For vehicles powered solely by lithium batteries and hybrid 
electric vehicles powered by both an internal combustion engine and 
lithium metal or ion batteries offered in accordance with this 
paragraph, the lithium batteries, except for prototype or those 
produced in low production, must be of a type that has successfully 
passed each test in the UN Manual of Tests and Criteria (IBR, see Sec.  
171.7 of this subchapter), as specified in Sec.  173.185(a) of this 
subchapter. Where a lithium battery installed in a vehicle is damaged 
or defective, the battery must be removed.
    (ii) [Reserved].
    (2) The vehicle is powered by a flammable liquid that has a 
flashpoint of 38 [deg]C (100[emsp14][deg]F) or above, the fuel tank 
contains 450 L (119 gallons) of fuel or less, there are no leaks in any 
portion of the fuel system, and installed batteries are protected from 
short circuit;
    (3) The vehicle is powered by a flammable liquid fuel that has a 
flashpoint less than 38 [deg]C (100 [deg]F), the fuel tank is empty, 
and installed batteries are protected from short circuit. Vehicles are 
considered to be empty of flammable liquid fuel when the fuel tank has 
been drained and the

[[Page 61828]]

vehicles cannot be operated due to a lack of fuel. Engine components 
such as fuel lines, fuel filters and injectors do not need to be 
cleaned, drained or purged to be considered empty. The fuel tank does 
not need to be cleaned or purged;
    (4) The vehicle is powered by a flammable gas (liquefied or 
compressed), the fuel tanks are empty and the positive pressure in the 
tank does not exceed 2 bar (29 psig), the fuel shut-off or isolation 
valve is closed and secured, and installed batteries are protected from 
short circuit;
    (5) The vehicle is solely powered by a wet or dry electric storage 
battery or a sodium battery, and the battery is protected from short 
circuit; or
    (6) The vehicle is powered by a fuel cell engine, the engine is 
protected from inadvertent operation by closing fuel supply lines or by 
other means, and the fuel supply reservoir has been drained and sealed.
    (j) Except as provided in Sec.  173.220(f) of this subchapter, the 
provisions of this subchapter do not apply to items of equipment such 
as fire extinguishers, compressed gas accumulators, airbag inflators 
and the like which are installed in the vehicle if they are necessary 
for the operation of the vehicle, or for the safety of its operator or 
passengers.
0
48. Section 176.906 is added to read as follows:


Sec.  176.906  Stowage of engines and machinery.

    (a) Any engine or machinery powered by internal combustion systems, 
with or without batteries installed, is subject to the following 
requirements when carried as cargo on a vessel:
    (1) Before being loaded on a vessel, each engine or machinery must 
be inspected for fuel leaks and identifiable faults in the electrical 
system that could result in short circuit or other unintended 
electrical source of ignition. Engines or machinery showing any signs 
of leakage or electrical fault may not be transported.
    (2) The fuel tanks of an engine or machinery powered by liquid fuel 
may not be more than one-fourth full.
    (3) Whenever possible, each engine or machinery must be stowed to 
allow for its inspection during transportation.
    (b) All equipment used for handling engines or machinery must be 
designed so that the fuel tank and the fuel system of the engines or 
machinery are protected from stress that might cause rupture or other 
damage incident to handling.
    (c) Two hand-held, portable, dry chemical fire extinguishers of at 
least 4.5 kg (10 pounds) capacity each must be separately located in an 
accessible location in each hold or compartment in which engine or 
machinery is stowed.
    (d) ``NO SMOKING'' signs must be conspicuously posted at each 
access opening to the hold or compartment.
    (e) Each portable electrical light, including a flashlight, used in 
the stowage area must be an approved, explosion-proof type. All 
electrical connections for any light must be made to outlets outside 
the space in which any engine or machinery is stowed.
    (f) Each hold or compartment must be ventilated and fitted with an 
overhead water sprinkler system or fixed fire extinguisher system.
    (g) Each hold or compartment must be equipped with a smoke or fire 
detection system capable of alerting personnel on the bridge.
    (h) All electrical equipment in the hold or compartment other than 
fixed explosion-proof lighting must be disconnected from its power 
source at a location outside the hold or compartment during the 
handling and transportation of any engine or machinery. Where the 
disconnecting means is a switch or circuit breaker, it must be locked 
in the open position until all engines or machinery has been removed.
    (i) Exceptions. (1) An engine or machinery is not subject to the 
requirements of this subchapter if the engine or machinery is empty of 
liquid or gaseous fuel(s), does not contain other dangerous goods, and 
installed batteries are protected from short circuit. An engine and 
machinery is considered to be empty of fuel when:
    (i) For liquid fuels, the liquid fuel tank has been drained and the 
mechanical equipment cannot be operated due to a lack of fuel. Engine 
and machinery components such as fuel lines, fuel filters and injectors 
do not need to be cleaned, drained or purged to be considered empty of 
liquid fuels. In addition, the liquid fuel tank does not need to be 
cleaned or purged;
    (ii) For gaseous fuels, the gaseous fuel tanks are empty of liquid 
(for liquefied gases), the positive pressure in the tanks does not 
exceed 2 bar (29 psig) and the fuel shut-off or isolation valve is 
closed and secured; or
    (iii) The engine or machinery is powered by a fuel cell engine and 
the engine is protected from inadvertent operation by closing fuel 
supply lines or by other means, and the fuel supply reservoir has been 
drained and sealed.
    (2) An engine or machinery is not subject to the requirements of 
this subchapter except for Sec.  173.185 of this subchapter and the 
vessel stowage provisions of column 10 of table Sec.  172.101 of this 
subchapter, if the following are met:
    (i) Any valves or openings (e.g. venting devices) for liquid fuels 
must be closed during transport;
    (ii) The engines or machinery must be oriented to prevent 
inadvertent leakage of dangerous goods and secured by means capable of 
restraining the engines or machinery to prevent any movement during 
transport which would change the orientation or cause them to be 
damaged;
    (iii) For UN 3528 and UN 3530:
    (A) Where the engine or machinery contains more than 60 L (16 Gal) 
of liquid fuel and has a capacity of not more than 450 L (119 Gal), it 
shall be labelled in accordance with subpart E of part 172 of this 
subchapter;
    (B) Where the engine or machinery contains more than 60 L of liquid 
fuel and has a capacity of more than 450 L (119 Gal) but not more than 
3,000 L (793 Gal), it shall be labeled on two opposing sides in 
accordance with Sec.  172.406(e) of this subchapter;
    (C) Where the engine or machinery contains more than 60 L (16 Gal) 
of liquid fuel and has a capacity of more than 3,000 L (793 Gal), it 
shall be placarded on two opposing sides in accordance with subpart F 
of part 172 of this subchapter; and
    (D) For UN 3530 the marking requirements of Sec.  172.322 of this 
subchapter also apply.
    (iv) For UN 3529:
    (A) Where the fuel tank of the engine or mechanical equipment has a 
water capacity of not more than 450 L (119 Gal), the labeling 
requirements of subpart E of part 172 of this subchapter shall apply;
    (B) Where the fuel tank of the mechanical equipment has a water 
capacity of more than 450 L (119 Gal) but not more than 1,000 L (264 
Gal), it shall be labeled on two opposing sides in accordance with 
Sec.  172.406(e) of this subchapter;
    (C) Where the fuel tank of the mechanical equipment has a water 
capacity of more than 1,000 L (264 Gal), it shall be placarded on two 
opposing sides in accordance with subpart F of this subchapter.
    (v) Except for engines or machinery offered in accordance with 
paragraph (i)(1) of this section, a shipping paper prepared in 
accordance with part 172 of this subchapter is required and shall 
contain the following additional statement ``Transport in accordance 
with Sec.  176.906.'' For transportation in accordance with the IMDG 
Code (IBR, see Sec.  171.7 of this subchapter) the following 
alternative statement is

[[Page 61829]]

authorized ``Transport in accordance with special provision 363.''
    (j) Except as provided in Sec.  173.220(f) of this subchapter, the 
provisions of this subchapter do not apply to items of equipment such 
as fire extinguishers, compressed gas accumulators, airbag inflators 
and the like which are installed in the engine or machinery if they are 
necessary for the operation of the engine or machinery, or for the 
safety of its operator or passengers.

PART 178--SPECIFICATIONS FOR PACKAGINGS

0
49. The authority citation for part 178 continues to read as follows:

    Authority:  49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97.

0
50. In Sec.  178.71:
0
a. Revise paragraph (d)(2);
0
b. Add paragraph (g)(4),
0
c. Revise paragraphs (h), (k)(2), (l), and (o)(2);
0
d. Add paragraphs (q)(20) and (21); and
0
e. Revise paragraph (r).
    The revisions and additions read as follows:


Sec.  178.71  Specifications for UN pressure receptacles.

* * * * *
    (d) * * *
    (2) Service equipment must be configured or designed to prevent 
damage that could result in the release of the pressure receptacle 
contents during normal conditions of handling and transport. Manifold 
piping leading to shut-off valves must be sufficiently flexible to 
protect the valves and the piping from shearing or releasing the 
pressure receptacle contents. The filling and discharge valves and any 
protective caps must be secured against unintended opening. The valves 
must conform to ISO 10297:2014 Gas cylinders--Cylinder valves--
Specification and type testing, or ISO 13340 (IBR, see Sec.  171.7 of 
this subchapter) for non-refillable pressure receptacles, and be 
protected as specified in Sec.  173.301b(f) of this subchapter. Until 
December 31, 2020, the manufacture of a valve conforming to the 
requirements in ISO 10297:2006 (IBR, see Sec.  171.7 of this 
subchapter) is authorized. Until December 31, 2008, the manufacture of 
a valve conforming to the requirements in ISO 10297:1999 (IBR, see 
Sec.  171.7 of this subchapter) is authorized.
* * * * *
    (g) * * *
    (4) ISO 9809-4:2014 Gas cylinders--Refillable seamless steel gas 
cylinders--Design, construction and testing--Part 4: Stainless steel 
cylinders with an Rm value of less than 1 100 MPa (IBR, see Sec.  171.7 
of this subchapter).
    (h) Design and construction requirements for UN refillable seamless 
aluminum alloy cylinders. In addition to the general requirements of 
this section, UN refillable seamless aluminum cylinders must conform to 
ISO 7866:2012 Gas cylinders--Refillable seamless aluminium alloy gas 
cylinders--Design, construction and testing (including Technical 
Corrigendum 1) (IBR, see Sec.  171.7 of this subchapter). Until 
December 31, 2020, cylinders conforming to the requirements in ISO 
7866: Gas cylinders--Refillable seamless aluminum alloy gas cylinders--
Design, construction and testing (IBR, see Sec.  171.7 of this 
subchapter) are authorized. The use of Aluminum alloy 6351-T6 or 
equivalent is prohibited.
* * * * *
    (k) * * *
    (2) The porous mass in an acetylene cylinder must conform to ISO 
3807:2013: Gas cylinders--Acetylene cylinders--Basic requirements and 
type testing (IBR, see Sec.  171.7 of this subchapter). Until December 
31, 2020, the manufacture of a cylinder conforming to the requirements 
in ISO 3807-2: Cylinders for acetylene--Basic requirements--Part 2: 
Cylinders with fusible plugs (IBR, see Sec.  171.7 of this subchapter) 
is authorized.
    (l) Design and construction requirements for UN composite cylinders 
and tubes. (1) In addition to the general requirements of this section, 
UN composite cylinders and tubes must be designed for a design life of 
not less than 15 years. Composite cylinders and tubes with a design 
life longer than 15 years must not be filled after 15 years from the 
date of manufacture, unless the design has successfully passed a 
service life test program. The service life test program must be part 
of the initial design type approval and must specify inspections and 
tests to demonstrate that cylinders manufactured accordingly remain 
safe to the end of their design life. The service life test program and 
the results must be approved by the competent authority of the country 
of approval that is responsible for the initial approval of the 
cylinder design. The service life of a composite cylinder or tube must 
not be extended beyond its initial approved design life. Additionally, 
composite cylinders and tubes must conform to the following ISO 
standards, as applicable:
    (i) ISO 11119-1:2012 Gas cylinders--Refillable composite gas 
cylinders and tubes--Design, construction and testing--Part 1: Hoop 
wrapped fibre reinforced composite gas cylinders and tubes up to 450 l 
(IBR, see Sec.  171.7 of this subchapter). Until December 31, 2020, 
cylinders conforming to the requirements in ISO 11119-1(E), Gas 
cylinders--Gas cylinders of composite construction--Specification and 
test methods--Part 1: Hoop-wrapped composite gas cylinders, First 
edition, May 2002 (IBR, see Sec.  171.7 of this subchapter) are 
authorized.
    (ii) ISO 11119-2:2012 Gas cylinders--Refillable composite gas 
cylinders and tubes--Design, construction and testing--Part 2: Fully 
wrapped fibre reinforced composite gas cylinders and tubes up to 450 l 
with load-sharing metal liners (including Amendment 1:2014) (IBR, see 
Sec.  171.7 of this subchapter). Until December 31, 2020, cylinders 
conforming to the requirements in ISO 11119-2(E), Gas cylinders--Gas 
cylinders of composite construction--Specification and test methods--
Part 2: Fully wrapped fibre reinforced composite gas cylinders with 
load-sharing metal liners, First edition, May 2002 (IBR, see Sec.  
171.7 of this subchapter) are authorized.
    (iii) ISO 11119-3:2013 Gas cylinders--Refillable composite gas 
cylinders and tubes--Design, construction and testing--Part 3: Fully 
wrapped fibre reinforced composite gas cylinders and tubes up to 450 l 
with non-load-sharing metallic or non-metallic liners (IBR, see Sec.  
171.7 of this subchapter). Until December 31, 2020, cylinders 
conforming to the requirements in ISO 11119-3(E), Gas cylinders of 
composite construction--Specification and test methods--Part 3: Fully 
wrapped fibre reinforced composite gas cylinders with non-load-sharing 
metallic or non-metallic liners, First edition, September 2002, (IBR, 
see Sec.  171.7 of this subchapter) are authorized.
    (iv) ISO 11515:2013 Gas cylinders--Refillable composite reinforced 
tubes of water capacity between 450 L and 3000 L--Design, construction 
and testing (IBR, see Sec.  171.7 of this subchapter).
    (2) ISO 11119-2 and ISO 11119-3 gas cylinders of composite 
construction manufactured in accordance with the requirements for 
underwater use must bear the ``UW'' mark.
* * * * *
    (o) * * *
    (2) ISO 11114-2:2013 Gas cylinders--Compatibility of cylinder and 
valve materials with gas contents--Part 2: Non-metallic materials (IBR, 
see Sec.  171.7 of this subchapter).
* * * * *
    (q) * * *

[[Page 61830]]

    (20) For composite cylinders and tubes having a limited design 
life, the letters ``FINAL'' followed by the design life shown as the 
year (four digits) followed by the month (two digits) separated by a 
slash (i.e. ``/'').
    (21) For composite cylinders and tubes having a limited design life 
greater than 15 years and for composite cylinders and tubes having non-
limited design life, the letters ``SERVICE'' followed by the date 15 
years from the date of manufacture (initial inspection) shown as the 
year (four digits) followed by followed by the month (two digits) 
separated by a slash (i.e. ``/'').
    (r) Marking sequence. The marking required by paragraph (q) of this 
section must be placed in three groups as shown in the example below:
    (1) The top grouping contains manufacturing marks and must appear 
consecutively in the sequence given in paragraphs (q)(13) through (19) 
of this section.
    (2) The middle grouping contains operational marks described in 
paragraphs (q)(6) through (11) of this section.
    (3) The bottom grouping contains certification marks and must 
appear consecutively in the sequence given in paragraphs (q)(1) through 
(5) of this section.
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[GRAPHIC] [TIFF OMITTED] TP07SE16.003

BILLING CODE 4910-60-C
0
51. In Sec.  178.75, existing paragraph (d)(3)(iv) is redesignated as 
(d)(3)(v), and new paragraph (d)(3)(iv) is added to read as follows:


Sec.  178.75  Specifications for MEGCs.

    (d) * * *
    (3) * * *
    (iv) ISO 9809-4:2014 Gas cylinders--Refillable seamless steel gas 
cylinders--Design, construction and testing--Part 4: Stainless steel 
cylinders with an Rm value of less than 1 100 MPa (IBR, see Sec.  171.7 
of this subchapter).
* * * * *
0
52. In Sec.  178.1015 paragraph (f) is revised to read as follows:


Sec.  178.1015  General Flexible Bulk Container standards.

* * * * *
    (f) A venting device must be fitted to Flexible Bulk Containers 
intended to transport hazardous materials that may develop dangerous 
accumulation of gases within the Flexible Bulk Container. Any venting 
device must be designed so that external foreign substances or the 
ingress of water are prevented from entering the Flexible Bulk 
Container through the venting device under conditions normally incident 
to transportation.

PART 180--CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS

0
53. The authority citation for part 180 continues to read as follows:

    Authority: 49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97.

0
54. In Sec.  180.205, paragraph (c) is revised to read as follows:


Sec.  180.205  General requirements for requalification of 
specification cylinders.

* * * * *
    (c) Periodic requalification of cylinders. Each cylinder bearing a 
DOT specification marking must be requalified and marked as specified 
in the Requalification Table in this subpart. Each cylinder bearing a 
DOT special permit number must be requalified and marked in conformance 
with this section and the terms of the applicable special permit. Each 
CRC, BTC, CTC or TC cylinder must be requalified and marked as 
specified in the Transport Canada TDG Regulations (IBR, see Sec.  171.7 
of this subchapter). No cylinder may be filled with a hazardous 
material and offered for transportation in commerce unless that 
cylinder has

[[Page 61831]]

been successfully requalified and marked in accordance with this 
subpart. A cylinder may be requalified at any time during or before the 
month and year that the requalification is due. However, a cylinder 
filled before the requalification becomes due may remain in service 
until it is emptied. A cylinder with a specified service life may not 
be refilled and offered for transportation after its authorized service 
life has expired.
    (1) Each cylinder that is requalified in accordance with the 
requirements specified in this section must be marked in accordance 
with Sec.  180.213, or in the case of a CRC, BTC, CTC or TC cylinder, 
in accordance with the requirements of the Transport Canada TDG 
Regulations.
    (2) Each cylinder that fails requalification must be:
    (i) Rejected and may be repaired or rebuilt in accordance with 
Sec.  180.211 or Sec.  180.212, as appropriate; or
    (ii) Condemned in accordance with paragraph (i) of this section.
    (3) For DOT specification cylinders, the marked service pressure 
may be changed upon approval of the Associate Administrator and in 
accordance with written procedures specified in the approval.
    (4) For a specification 3, 3A, 3AA, 3AL, 3AX, 3AXX, 3B, 3BN, or 3T 
cylinder filled with gases in other than Division 2.2, from the first 
requalification due on or after December 31, 2003, the burst pressure 
of a CG-1, CG-4, or CG-5 pressure relief device must be at test 
pressure with a tolerance of plus zero to minus 10%. An additional 5% 
tolerance is allowed when a combined rupture disc is placed inside a 
holder. This requirement does not apply if a CG-2, CG-3 or CG-9 
thermally activated relief device or a CG-7 reclosing pressure valve is 
used on the cylinder.
* * * * *
0
55. In Sec.  180.207, paragraph (d)(3) is revised to read as follows:


Sec.  180.207  Requirements for requalification of UN pressure 
receptacles.

* * * * *
    (d) * * *
    (3) Dissolved acetylene UN cylinders: Each dissolved acetylene 
cylinder must be requalified in accordance with ISO 10462:2013 Gas 
cylinders--Acetylene cylinders--Periodic inspection and maintenance 
(IBR, see Sec.  171.7 of this subchapter). Until December 31, 2018 
requalification may be done in accordance with ISO 10462 (E), Gas 
cylinders--Transportable cylinders for dissolved acetylene--Periodic 
inspection and maintenance, Second edition, February 2005 (IBR, see 
Sec.  171.7 of this subchapter). The porous mass and the shell must be 
requalified no sooner than 3 years, 6 months, from the date of 
manufacture. Thereafter, subsequent requalifications of the porous mass 
and shell must be performed at least once every ten years.
* * * * *
0
56. In Sec.  180.413, paragraph (a)(1)(iii) is added and the 
introductory text of paragraph (b) is revised to read as follows:


Sec.  180.413  Repair, modification, stretching, rebarrelling, or 
mounting of specification cargo tanks.

    (a) * * *
    (1) * * *
    (iii) A repair, as defined in Sec.  180.403, of a DOT specification 
cargo tank used for the transportation of hazardous materials in the 
United States may be performed by a facility in Canada in accordance 
with the Transport Canada TDG Regulations (IBR, see Sec.  171.7 of this 
subchapter) provided:
    (A) The facility holds a valid Certificate of Authorization from a 
provincial pressure vessel jurisdiction for repair;
    (B) The facility is registered in accordance with the Transport 
Canada TDG Regulations to repair the corresponding TC specification; 
and
    (C) All repairs are performed using the quality control procedures 
used to obtain the Certificate of Authorization.
    (b) Repair. The suitability of each repair affecting the structural 
integrity or lading retention capability of the cargo tank must be 
determined by the testing required either in the applicable 
manufacturing specification or in Sec.  180.407(g)(1)(iv). Except for a 
repair performed by a facility in Canada in accordance with paragraph 
(a)(1)(iii) of this section, each repair of a cargo tank involving 
welding on the shell or head must be certified by a Registered 
Inspector. The following provisions apply to specific cargo tank 
repairs:
* * * * *
0
57. In Sec.  180.605, paragraph (g)(1) is revised to read as follows:


Sec.  180.605  Requirements for periodic testing, inspection and repair 
of portable tanks.

* * * * *
    (g) * * *
    (1) The shell is inspected for pitting, corrosion, or abrasions, 
dents, distortions, defects in welds or any other conditions, including 
leakage, that might render the portable tank unsafe for transportation. 
The wall thickness must be verified by appropriate measurement if this 
inspection indicates a reduction of wall thickness;
* * * * *

    Issued in Washington, DC, on August 23, 2016, under authority 
delegated in 49 CFR 1.97.
William Schoonover,
Acting Associate Administrator for Hazardous Materials Safety, Pipeline 
and Hazardous Materials Safety Administration.
[FR Doc. 2016-20580 Filed 9-6-16; 8:45 am]
 BILLING CODE 4910-60-P