reclassed as ORM-D to transportation as limited quantity material such
that it ensures no undue burdens are placed on shippers and carriers of
such articles.
    PHMSA is also proposing in Sec.  173.63 to require ``Cartridges,
power devices, ORM-D-AIR'' (UN0323), before being offered for
transportation by aircraft, to have been successfully tested in
accordance with the new UN Test Series 6(d) test effective April 1,
2011. This proposed requirement is a precondition for reclassification
from Division 1.4S to ORM-D for such articles intended for
transportation by international highway, rail and vessel effective
January 1, 2012. Articles approved as Division 1.4S prior to January 1,
2012, may continue to be offered in domestic highway and rail
transportation only until January 1, 2014.
Section 173.120
    Section 173.120 defines Class 3 (flammable liquid) material. PHMSA
is proposing to revise paragraph (c) to add new testing methods for
determining the flash point of a liquid.
Section 173.121
    Section 173.121 prescribes the packing group assignment for
flammable liquids. Currently, the HMR do not specify test method for
determining the boiling point of a liquid which may be necessary for
liquids with very low flash points. PHMSA is proposing to revise
paragraph (a) to add new testing methods for determining the boiling
point of a liquid.
Section 173.124
    Section 173.124 defines Class 4 material. For consistency with a
revision adopted in the UN Model Regulations, PHMSA proposes to amend
the definition of ``self-heating'' in Sec.  173.124(b)(2) of the HMR to
read: ``Self-heating of a substance is a process where the gradual
reaction of that substance with oxygen (in air) generates heat. If the
rate of heat production exceeds the rate of heat loss, then the
temperature of the substance will rise which, after an induction time,
may lead to self-ignition and combustion.''
Section 173.137
    Section 173.137 establishes test criteria and packing group
assignments for Class 8 (corrosive) material. Since 1993, PHMSA has
authorized under the terms of a special permit an in vitro test method
as an alternative form of testing to that specified in the HMR to
determine the corrosivity of certain substances. Substances authorized
for analysis using the alternative test method include acids (and their
derivatives), acyl halides, alkylamines and polyalkylamines, bases,
chlorosilanes, metal halides, and oxyhalides.
    The UN Committee of Experts (COE) recently recognized and adopted
in vitro test methods in the UN Model Regulations as an alternative
form of testing to that specified in OECD Guideline for Testing of
Chemicals, Number 404, ``Acute Dermal Irritation/Corrosion.'' These
alternative in vitro test methods include:
     OECD Guidelines for the Testing of Chemicals, No. 430,
``In Vitro Skin Corrosion: Transcutaneous Electrical Resistance Test
(TER)'' (2004);
     No. 431, ``In Vitro Skin Corrosion: Human Skin Model
Test'' (2004); and
     No. 435, ``In Vitro Membrane Barrier Test Method for Skin
Corrosion'' (2006).
    A positive result under in vitro methods 430 and 431 may be used to
determine corrosivity for transportation purposes but cannot be used to
determine the PG assignment. A negative result for corrosivity under in
vitro methods 430 and 431 can preclude further testing to determine PG
assignment using method 404, the current OECD Guideline involving in
vivo testing or, method 435, the newly adopted OECD Guideline involving
in vitro testing.
    Based on the adoption of three new OECD guidelines for the in vitro
testing of materials for corrosivity in the UN Model Regulations and
our own initiative, PHMSA is proposing to adopt such guidelines as
matter incorporated

by reference (IBR) in Sec. Sec.  171.7 and 173.137 of the HMR. This is
consistent with a petition for rulemaking (P-1550) filed by the People
for the Ethical Treatment of Animals (PETA), who voice strong support
for such action.
Section 173.144
    Section 173.144 would be editorially revised by adding the
descriptions ``Cartridges, small arms'' and ``Cartridges, power
device'' and removing the description ``Consumer commodity.''
Sections 173.150, 173.151, 173.152, 173.153, 173.154, 173.155
    Sections 173.150 through 173.155 prescribe the exceptions from
certain regulation as Class 3, 8 and 9 and Division 4.1, 4.2, 4.3, 5.1,
5.2 and 6.1 materials under the HMR. PHMSA is proposing to revise each
of these sections to recognize the UN Model Regulations and IMDG Code
provisions for the highway, rail, and vessel transportation of limited
quantities. No quantity limits are proposed to decrease; however, two
are increased slightly to maintain alignment.
    Section 173.150 prescribes specific exceptions for Class 3
(flammable and combustible liquid) materials. Paragraph (d) prescribes
exceptions for alcoholic beverages (wine and distilled spirits) as
defined in 27 CFR 4.10 and 5.11. In this NPRM, PHMSA is proposing to
revise paragraph (d) only to clarify the exceptions by mode of
transport in order to provide a better understanding of the
applicability of the HMR to such materials.
    When we lowered the quantity limits for limited quantities of
Division 6.1 (primary or subsidiary) hazardous materials in PG II in a
final rule published June 13, 2005 (HM-215G) (70 FR 34065), we did not
remove the labeling requirement for such materials when intended for
transportation by highway, rail and vessel nor did we authorize them as
``Consumer commodity, ORM-D'' material. In this NPRM, except for
transportation by aircraft, we are proposing to remove the labeling
requirement for all limited quantities of Division 6.1 materials in PG
II and III as authorized under Sec.  173.153. When the exceptions
Column (8A) of the HMT specifies Section 173.153, and the packaged is
marked in accordance with Sec.  172.315, PHMSA is proposing not to
require a Division 6.1 label for transportation by highway, rail and
vessel. We believe this alignment with international standards will
promote compliance without compromising safety.
Section 173.156
    Section 173.156 prescribes the conditions under which materials
reclassed as ORM-D may be offered for transportation and transported in
excepted types of packagings or in excess of authorized weight limits
when transported to or from a manufacturer, a distribution center,
retail outlet, or disposal facility. In this notice, PHMSA is proposing
to eliminate the ORM-D hazard class (after three years), if adopted in
a final rule. Until that time, use of exceptions provided in Sec.
173.156 will be authorized and extended to all limited quantities
marked in accordance with Sec.  172.315 regardless of whether they also
meet the definition of a ``Consumer commodity'' or not. In this NPRM,
PHMSA is proposing that markings prescribed in Sec.  172.316 (ORM-D and
ORM-D-AIR) will no longer be authorized on or after January 1, 2014.
Section 173.161
    Section 173.161 prescribes packaging requirements for chemical kits
and first aid kits containing small amounts of hazardous materials. In
this notice, PHMSA is proposing to editorially revise the section. In
addition, PHMSA is proposing to allow transport of dry ice in
accordance with the packaging requirements of Sec.  173.217 in
packaging authorized under this section when used as a refrigerant for
the contents of a kit. For chemical and first aid kits intended for
transportation by air, the reader is also directed to Sec.  173.27 of
the HMR.
Section 173.165
    A new section 173.165 would be added to prescribe packaging and
other requirements for ``Polyester resin kits, UN3269'' formerly
contained in Sec.  172.102, Special provision 40 and Sec.
173.152(b)(4) of the HMR. This amendment is intended to provide
clarification of existing requirements while also harmonizing with
international standards.
Section 173.167
    A new section 173.167 would be added to indicate authorized
materials and quantity limits for articles and substances that may be
described as ``Consumer commodity, ID8000'' when intended for
transportation by aircraft. Such articles and substances eligible for
classification or reclassification to Class 9 are Class 2 materials
(non-toxic aerosols only), Class 3 materials (Packing Group II and III
only), Division 6.1 (Packing Group III only), UN/NA3077, UN/NA3082, and
UN3175 provided such materials do not have a subsidiary risk and are
authorized aboard a passenger-carrying aircraft. Inner and outer
packaging quantity limits are based on Packing Instruction Y963 of the
2011-2012 ICAO TI. Specification outer packagings are not required
under the conditions prescribed in this section.
Section 173.220
    Section 173.220 provides exceptions from regulation under the HMR
for the transport of internal combustion engines, self-propelled
vehicles, mechanical equipment containing internal combustion engines,
and battery-powered vehicles or equipment. This section would be
revised to include engines, vehicles, and equipment powered by fuel
cells consistent with similar provisions under international standards.
Section 173.225
    Section 173.225 specifies packaging requirements and other
provisions for organic peroxides. When the Sec.  172.101 HMT specifies
this section, the organic peroxide must be packaged and offered for
transportation in accordance with the provisions of this section. Each
packaging must also conform to the general requirements of subpart B of
part 173 and to the applicable requirements of part 178 of the HMR.
Specifically, organic peroxides that require temperature control are
subject to Sec.  173.21(f). When an IBC or bulk packaging is authorized
and meets the requirements of paragraph (f) or (h) of Sec.  173.225,
respectively, lower control temperatures than those specified for non-
bulk packaging may be required. An organic peroxide not identified in
paragraph (c), (e), or (g) of Sec.  173.225 by technical name, or not
assigned to a generic type in accordance with paragraph (b)(3) of this
section, must conform to the requirements in paragraph (c) of Sec.
173.128.
    The Organic Peroxides Table specifies by technical name those
organic peroxides that are authorized for transportation and not
subject to the approval provisions of Sec.  173.128. An organic
peroxide identified by technical name is authorized for transportation
only if it conforms to all applicable provisions of the table. In this
NPRM, PHMSA is proposing to amend the Organic Peroxide Table in Sec.
173.225(c)(8) by adding a new entry and revising current entries. We
are also proposing to revise an entry to the Organic Peroxide IBC Table
in paragraph (e) of this section.
    The following entries in the Organic Peroxide Table are being
revised:

UN3106 Di-(2-tert-butylperoxyisopropyl) benzene(s).
Exempt Di-(2-tert-butylperoxyisopropyl) benzene(s).
UN3105 2, 5-Dimethyl-2, 5-di-(tert-butylperoxy) hexane.
    The following entry would be added to the Organic Peroxide Table:
UN3103 2, 5-Dimethyl-2, 5-di-(tert-butylperoxy) hexane.
    The following entry in the Organic Peroxide IBC Table is being
revised:
UN3109 Peroxyacetic acid, stabilized, not more than 17%.
Section 173.230
    Section 173.230 prescribes the requirements for fuel cells offered
for transportation by all modes. In paragraph (g), PHMSA is proposing
to allow only those fuel cells containing flammable liquids and
corrosive materials to be transported as a limited quantity by
aircraft. In paragraph (h), PHMSA is also proposing to prohibit the
reclassification to ``Consumer commodity, ORM-D-AIR'' for
transportation by aircraft.
Section 173.301b
    Section 173.301b prescribes general requirements for shipment of UN
pressure receptacles. PHMSA is proposing to revise paragraph
(c)(2)(iii) to indicate that valve protection requirements for metal
hydride storage systems are specified in ISO 16111. Additionally, we
are proposing to revise paragraph (e) regarding the integrity of UN
pressure receptacles used for pyrophoric gases or flammable mixtures of
gases containing more than 1% pyrophoric compounds in accordance with
the 16th revised edition of the UN Model Regulations.
Section 173.306
    Section 173.306 prescribes the requirements for limited quantities
of compressed gases. PHMSA is proposing to revise paragraphs (i) and
(k) of the section to recognize the proposed new marking for limited
quantities of such materials and provide a transitional period for the
eventual elimination of the ORM-D hazard class.
    PHMSA is proposing to revise paragraph (h) to clarify that except
for transportation by aircraft, lighter refills in the ORM-D hazard
class are eligible for the exceptions in paragraph (i) of the section
and Sec.  173.156.
Section 173.307
    Section 173.307 establishes exceptions for compressed gases. In
this NPRM, PHMSA is proposing to add certain light bulbs provided they
are packaged appropriately so that if a bulb ruptures all pieces are
contained within the package.
Section 173.311
    PHMSA is proposing to add a new Sec.  173.311 to prescribe the
packaging requirements for Metal hydride storage systems, UN3468, used
for the transport of hydrogen. A metal hydride storage system is a
single complete hydrogen storage system that includes a receptacle,
metal hydride, a pressure relief device, a shut-off valve, service
equipment and internal components.
    The HMR currently do not prescribe specific packaging or shipping
methods for metal hydride storage systems containing hydrogen. However,
PHMSA has issued a number of special permits to allow the use of these
systems for transport. The UN Model Regulations, in new Packing
Instruction P205, prescribe standards for the construction,
qualification, marking and requalification of such systems and is the
basis for the proposed HMR requirements. Some amendments proposed in
new Sec.  173.311 include:
     Applies to transportable metal hydride storage systems
with pressure receptacles not exceeding 150 liters in water capacity
and having a maximum developed pressure not exceeding 25 MPa.
     Requires transportable metal hydride storage systems to be
designed, constructed, initially inspected and tested in accordance
with ISO standard 16111:2008, ``Transportable gas storage devices--
Hydrogen absorbed in reversible metal hydride.'' as authorized under
Sec.  178.71(f) (formerly reserved).
     Requires steel pressure receptacles or composite pressure
receptacles with steel liners to be marked in accordance with Sec.
173.301b(f) of the HMR which specifies that a steel UN pressure
receptacle bearing an ``H'' mark must be used for hydrogen bearing
gases or other gases that may cause hydrogen embrittlement.
     Requires a requalification interval of no more than five
years as specified in Sec.  180.207 of the HMR in accordance with the
requalification procedures prescribed in ISO 16111.
Section 173.320
    Section 173.320 provides exceptions from certain regulations for
cryogenic liquids. In this NPRM, PHMSA is proposing to add a paragraph
clarifying authorization of use of the IMDG Code for the transportation
of cryogenic liquids aboard vessels consistent with amendments made to
the IMDG Code concerning stowage of cryogenic liquids.
Section 173.322
    Section 173.322 prescribes various packaging methods for ethyl
chloride. In this NPRM, PHMSA is proposing to adopt the amended
provisions from packaging instruction P200 of the UN Model Regulations
for ethyl chloride in a new paragraph (e). This new packaging method
authorizes ethyl chloride in capsules not exceeding 150 g of gas each,
closed with a secondary means applied, and placed in a strong outer
packaging not to exceed 75 kg gross mass.

Part 175

Section 175.8
    Section 175.8 provides for exceptions from certain regulation for
air carrier operator equipment and items of replacement. PHMSA is
proposing to revise paragraph (b)(3) to clarify that transportation of
alcoholic beverages, perfumes, colognes, and liquefied gas lighters
carried aboard a passenger-carrying aircraft by an operator must be for
use or sale of those items on that specific aircraft. See Ref. No. 09-
0207 under the ``Interpretations'' link on our Web site.
Section 175.9
    Section 175.9 prescribes the applicability of the HMR to special
aircraft and rotocraft operations. This section also prescribes the
conditions under which certain operations may be performed in
accordance with 14 CFR and 49 CFR (e.g., avalanche and weather
control). In this notice, PHMSA is emphasizing that rotocraft
operations are fully subject to both sets of regulations.
Section 175.10
    Section 175.10 specifies the conditions for which passengers, crew
members or an operator may carry hazardous materials aboard an
aircraft. PHMSA is proposing to add a new paragraph (a)(17) to permit a
mobility aid such as a wheelchair, containing a lithium-ion battery, to
be transported in accordance with the exceptions provided in this
section. A wheelchair or other mobility aid that contains a lithium
metal battery is not permitted aboard a passenger-carrying aircraft. As
a result of this proposed amendment, current paragraph (a)(17) is
redesignated as paragraph (a)(18) and current paragraph (a)(18) is
redesignated as paragraph (a)(19).
    Paragraph (a)(19) is being revised to allow passengers and crew
members to place certain spare fuel cell cartridges in checked baggage.
This exception does not apply to Divisions 2.1 or 4.3

materials contained in spare fuel cell cartridges. Although the ICAO TI
only restricts spare fuel cell cartridges containing Division 4.3
materials from checked baggage, PHMSA strongly believes that the
restriction should also include spare cartridges containing Division
2.1 materials. Thus, PHMSA is proposing a risk-based regulatory
amendment to allow spare fuel cell cartridges containing flammable and
corrosive liquids in checked baggage while continuing to require spare
fuel cell cartridges containing Division 2.1 and 4.3 materials to be
carried aboard in carry-on baggage only. This proposal is also
consistent with the risk-based limited quantity authorization for fuel
cells and cartridges containing Division 2.1 and 4.3 materials offered
for transportation and transported by aircraft in amendments proposed
in Sec.  173.230 of this notice.
Section 175.25
    PHMSA is proposing to require operators to provide certain
information to passengers regarding what hazardous materials they may
check-in or carry-on a flight. Effective January 1, 2011, this
information is to be provided at points of ticket sale and, effective
January 1, 2013, at automated or remote passenger check-in. Consistent
with the ICAO TI, if adopted these amendments will require a passenger
to acknowledge limitations before a ticket purchase and automated or
remote check-in can be finalized. PHMSA believes these amendments only
clarify existing regulatory requirements in Sec.  175.25 that have not
been updated due to changing technologies used by air carriers to
either sell tickets (Internet) or check-in passengers (automated
kiosks). Additionally, these amendments provide air carriers greater
flexibility in how the information they are required to provide
passengers on hazardous materials is disseminated to them.
Section 175.30
    Section 175.30 prescribes inspection procedures for operators.
PHMSA is revising paragraph (e) regarding overpack marking requirements
for packages of limited quantities offered for transportation by
aircraft.
Section 175.75
    Section 175.75 prescribes quantity limitations and cargo location
requirements for hazardous materials transported by aircraft. PHMSA is
proposing to revise paragraph (e) to correct an inadvertent cargo
compartment restriction for passenger-authorized materials carried
aboard a cargo-only aircraft published in a final rule under docket HM-
215J (January 14, 2009; 74 FR 2267). PHMSA is also proposing to revise
the paragraph (f) Quantity and Loading Tables for clarity.
Section 175.78
    Section 175.78 prescribes the stowage compatibility of hazardous
materials offered for transportation by aircraft. PHMSA is proposing to
revise paragraph (c)(4)(iii) to specify that except as provided in
paragraph (c)(4)(iv) of Sec.  175.78, Division 1.4B explosive materials
may only be stowed together with Division 1.4S explosive materials.
This revision is in accordance with an amendment made in the 2011-2012
ICAO TI.

Part 176

Section 176.2
    Section 176.2 establishes definitions specific to the
transportation of hazardous materials by vessel. PHMSA is proposing to
revise the definition for ``Cargo transport unit'' to include a
multiple-element gas container or MEGC.
Section 176.76
    Section 176.76 prescribes certain requirements for transport
vehicles, freight containers, and portable tanks containing hazardous
materials transported by vessel. In this notice, we are revising
paragraph (a)(9) to require that when security devices, beacons or
other tracking or monitoring equipment are used, they must be securely
installed and must be of a certified safe type for the hazardous
materials that will be carried within the freight container or
transport vehicle.
Section 176.84
    Section 176.84 outlines additional requirements for stowage and
segregation of hazardous materials transported by cargo and passenger
vessels. In this NPRM, PHMSA is proposing to remove the redundant
stowage code ``143.'' This provision is currently assigned to UN1259,
UN2845, UN3194, UN3392, and UN3394 which prohibits the carriage of them
aboard a vessel transporting Class 1 explosive material (except for
explosive of Division 1.4S). See the Section 172.101 Hazardous
Materials Table changes for our proposed amendment that adds stowage
code ``78'' to the above materials of extreme flammability. Such
materials are now required to be ``separated longitudinally by an
intervening complete compartment or hold from explosives'' based on
amendments adopted in the IMDG Code.
Section 176.142
    Section 176.142 prescribes the requirements for hazardous materials
of extreme flammability transported on the same vessel as Class 1
(explosive) materials. In this NPRM, PHMSA is proposing to delete this
outdated section as the restriction no longer exists. Hazardous
materials of extreme flammability are no longer prohibited from stowage
on the same vessel as explosives. For these entries, the most
restrictive stowage requirements will be required.
Section 176.905
    Section 176.905 prescribes specific requirements for motor vehicles
or mechanical equipment powered by internal combustion engines that are
offered for transportation and transported by vessel. For consistency
with Amendment 35-10 of the IMDG Code, PHMSA is proposing to remove the
signage requirement for such articles in paragraph (a)(5) and the
ignition key removal provisions from paragraph (a)(6).

Part 178

Section 178.71
    Section 178.71 establishes the specifications for UN pressure
receptacles. In this NPRM, we are proposing to amend the cylinder
bundle marking requirements in Sec.  178.71(e) by adding a new
paragraph (e)(8) specifying pressure vessel markings only apply to the
pressure vessel itself and not to the assembly structure of the bundle.
Additionally, we are proposing to add new paragraphs (f) and (m), that
establish the design and construction requirements for UN metal hydride
storage systems and refillable welded cylinders, respectively. To
accomplish this, we are redesignating paragraphs (m) through (r) as
paragraphs (n) through (s), and revising paragraphs (q) and (s)
accordingly to correct paragraph references. Further, we are adding
three ISO standards to the IBR table in Sec.  171.7 of this subchapter
for UN refillable welded cylinders (4706, 18172-1 and 20703). Lastly,
we are proposing to require that transportable metal hydride storage
systems (see Sec.  173.311) be designed, constructed, initially
inspected and tested in accordance with ISO 16111:2008, ``Transportable
gas storage devices--Hydrogen absorbed in reversible metal hydride.''
as authorized under Sec.  178.71(m).
Section 178.275
    Section 178.275 prescribes requirements for UN portable tanks
intended for transportation of liquid and

solid hazardous materials. Currently, Sec.  178.275(h) prohibits the
use of fusible elements on portable tanks with a test pressure which
exceeds 2.65 bar (265 kPa). In Sec.  172.102(c)(8), we proposed to add
a new portable tank Special provision ``TP36'' authorizing the use of
fusible elements in the vapor space of portable tanks with a gauge test
pressure that exceeds 265 kPa (38.4 psig/2.65 bar) for certain
organometallic substances. In this NPRM, we are proposing to authorize
use of fusible elements based on a well-established history of safe
transportation of these substances in portable tanks equipped with
fusible elements capable of properly functioning at pressure of at
least 1000 kPa (145 psig/10 bar). Past experience of the use of fusible
elements indicates reliability and a proper functioning even in the
event of a release during loading or unloading. Additionally, for
organometallic materials that are shipped in rigid portable tanks with
a minimum test pressure of more than 265 kPa (38.4 psig/2.65 bar), the
tanks are required to be equipped with a depressurizing system that
releases the inside pressure to avoid rupturing the tank as a result of
an inadvertent release or fire. Fusible elements are used by shippers
as a secondary pressure relief device, in addition to a re-closing
pressure relief device. No regulatory amendments are proposed to this
section.
Section 178.347-1
    Section 178.347-1 prescribes the general requirements for DOT
Specification 407 cargo tank motor vehicles. Paragraph (d)(9)
prescribes weld integrity, compliance and acceptance criteria for
bulkheads.
    The exemption in Sec.  178.347-1(d)(8) currently provides an
unconditional exemption from UW-12 for all joints. Section 178.347-
1(d)(9) applies a condition to one particular joint configuration in a
head. In petition P-1333, TTMA requested that we adopt a weld joint
efficiency of 0.85 for head seams in bulkheads on DOT 407 cargo tanks.
Based on review of the TTMA petition and additional information that
was provided, we proposed in the HM-213 NPRM (66 FR 63095; December 4,
2001) that the strength of a weld seam in a bulkhead without
radiographic examination of the weld must be 0.85 of the strength of
the bulkhead. The welded seam must be a full penetration butt weld, no
more than one seam may be used per bulkhead, and the welded seam must
be completed before forming the dish radius and knuckle radius.
    TTMA commented on the above proposal to the NPRM regarding Sec.
178.347-1(d)(9), General Requirements and stated, ``While we agree with
the proposal to allow a provisional 85% weld joint efficiency for DOT
407 heads with butt-welded seams, we would like to see the requirements
of UW-12 of the ASME Code specifically exempted for this welded joint.
Even though this section implies an exemption, the exemption is not
specific. We suggest the following wording, * * * ``The strength of a
weld seam in a bulkhead that has not been radiographically examined
shall be 0.85 of the strength of the bulkhead and be exempted from the
requirements of UW-12 of the ASME Code under the following condition;''
    In the final rule, we agreed with their comment and agreed to make
the change; however, it was changed in a corrections document (68 FR
52363; September 3, 2003). The final rule stated: ``In its comments to
the NPRM, TTMA agrees with the provisional 85% weld joint efficiency
for DOT 407 heads with butt-welded seams. However, TTMA suggests that
we include the requirements of Part UW-12 of the ASME Code to the list
of excepted requirements in Sec.  178.347-1(d)(8). We agree with TTMA.
In this final rule, we are adding Part UW-12 of the ASME Code to the
list of excepted requirements.''
    In October 2004, we added an exemption from the radiography/joint
efficiency requirements of ASME VIII sec UW-12 for DOT 407 cargo tanks
35 psig and less in Sec.  178.347-1(d)(8) and (9). The intent was to
provide a conditional alternate means of determining a joint efficiency
for certain head welds. Listing UW-12 in Sec.  178.347-1(d)(8) instead
of (9), however, results in an unconditional exemption from UW-12 in
all welds on these tanks. Therefore, we are proposing to revise Sec.
178.347-1(d)(9), add a new subparagraph (i), and re-number accordingly
in order to harmonize these requirements with the applicable Transport
Canada Regulations.
Section 178.603
    Section 178.603 prescribes the drop test requirements for non-bulk
packagings in the HMR. In this notice, PHMSA is proposing to revise
paragraph (f)(4) to amend the criteria for passing the tests.
Currently, the HMR only require that there is no leakage of filling
substance from the inner packaging. In this notice, we are proposing to
also require that inner receptacles, inner packagings and articles
remain completely within the outer package when drop tested.
Section 178.703
    Section 178.703 prescribes the marking requirements for IBCs. PHMSA
is proposing to align paragraph (a)(1)(viii) with the UN Model
Regulations by requiring the gross mass, in kg, to be marked on all IBC
types. Currently, the HMR require a net mass to be marked on flexible
IBCs which is inconsistent with international standards. PHMSA
inadvertently did not revise the HMR when the international standards
were amended to specify that a maximum permissible gross mass be marked
on all IBC types.
Section 178.955
    Section 178.955 establishes definitions used with regard to Subpart
Q of Part 178 that prescribes the design and testing criteria for Large
Packagings. PHMSA is proposing to add the following two new
definitions, ``Remanufactured Large Packaging'' and ``Reused Large
Packaging,'' in new paragraphs (c)(6) and (c)(7), respectively. A
``remanufactured'' large packaging would be defined as a metal or rigid
plastic large packaging that is produced as a UN type from a non-UN
type or is converted from one UN design type to another UN design type.
Remanufactured large packagings are subject to the same HMR
requirements that apply to a new large packaging. A ``reused'' large
packaging would be defined as a large packaging to be refilled which
has been examined and found free of defects affecting the ability to
withstand the performance tests. The term includes those which are
refilled with the same or similar compatible contents and are
transported within distribution chains controlled by the consignor of
the product.

Part 180

Section 180.207
    Section 180.207 prescribes the requirements for the requalification
of UN pressure receptacles. In this notice, PHMSA is proposing to
require that metal hydride storage systems be requalified every five
years in accordance with ISO 16111:2008 and the records of that
requalification be retained in accordance with Sec.  180.215 of the
HMR.
Section 180.350
    Section 180.350 prescribes applicability and defines certain terms
regarding the qualification and maintenance of IBCs. PHMSA is proposing
to revise paragraph (b) to indicate that the replacement of the inner
receptacle of a composite IBC with one from the original manufacturer
is

considered repair. This revision is consistent with the recent change
in the definition of ``repair'' in the UN Model Regulations.

VI. Regulatory Analyses and Notices

A. Statutory/Legal Authority for This Rulemaking

    This proposed rule is published under the following statutory
authorities:
    1. 49 U.S.C. 5103(b) 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 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, as discussed
in detail above, the proposed rule amends the HMR to more fully align
them with the biennial updates of the UN Model Regulations, the IMDG
Code and the ICAO TI.
    Harmonization serves to facilitate international commerce; at the
same time, harmonization promotes 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 on
its own merit based on its overall impact on transportation safety and
the economic implications associated with its adoption into the HMR.
Our goal is to harmonize without sacrificing the current HMR level of
safety and without imposing undue burdens on the regulated public.
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 TI. Moreover, we are
maintaining a number of current exceptions for domestic transportation
that should minimize the compliance burden on the regulated community.
    2. 49 U.S.C. 5120(b) authorizes the Secretary of Transportation 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 Sixteenth revised edition of the UN Model Regulations,
Amendment 35-10 to the IMDG Code, and the 2011-2012 ICAO TI, which
become effective January 1, 2011. The continually increasing amount of
hazardous materials transported in international commerce warrants the
harmonization of domestic and international requirements to the
greatest extent possible.

B. Executive Order 12866 and DOT Regulatory Policies and Procedures

    This proposed rule is not considered a significant regulatory
action under section 3(f) of Executive Order 12866 and, therefore, was
not reviewed by the Office of Management and Budget. The proposed rule
is not considered a significant rule under the Regulatory Policies and
Procedures of the Department of Transportation [44 FR 11034]. This
proposed rule applies to offerors and carriers of hazardous materials,
such as chemical manufacturers, chemical users and suppliers, packaging
manufacturers, distributors, radiopharmaceutical companies, and
training companies. Benefits resulting from the adoption of the
amendments in this proposed rule include enhanced transportation safety
resulting from the consistency of domestic and international hazard
communications and continued access to foreign markets by U.S.
manufacturers of hazardous materials.
    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.
    We propose a one-year transition period to allow for training of
employees and to ease any burden on entities affected by the
amendments. The total net increase in costs to businesses in
implementing the proposed rule is considered to be minimal. Initial
start-up and inventory costs would result from these changes; however,
the costs would be offset by greater long-term savings of conformance
with one set of regulations and a one-year transition period. A
regulatory evaluation is available for review in the public docket for
this rulemaking.

C. Executive Order 13132

    This proposed rule has been analyzed in accordance with the
principles and criteria contained in Executive Order 13132
(``Federalism''). This proposed rule 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 hazardous material transportation 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, 2011. If the changes in
this proposed rule are not adopted in the HMR, U.S. companies,
including numerous small entities competing in foreign markets, would
be at an economic disadvantage. These companies would be forced to
comply with a dual system of regulations. The changes in this proposed
rulemaking are intended to avoid this result. Federal hazardous
materials transportation 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. This proposed rule 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 discussed above, 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.
    Many companies will realize economic benefits as a result of these
amendments. Additionally, the changes effected by this final rule will
relieve U.S. companies, including small entities competing in foreign
markets, from the burden of complying with a dual system of
regulations. Therefore, I 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 2137-0034, ``Hazardous
Materials Shipping Papers and Emergency Response Information,'' with an
expiration date of May 31, 2011, and OMB Control Number 2137-0557,
``Approvals for Hazardous Materials,'' with an expiration date of June
30, 2011. This NPRM may result in an decrease in the annual burden and
costs of OMB Control Number 2137-0034 due to proposed amendments to the
exceptions for shipping paper requirements for limited quantities of
Class 3, Division 4.1, Division 4.2, Division 4.3, Division 5.1,
Division 5.2, Division 6.1, Class 8, and Class 9 materials for those
limited quantities that are defined as consumer commodities. This NPRM
may result in an increase in the annual burden and costs of OMB Control
Number 2137-0557 due to proposed amendments to the classification
criteria for eight Division 1.4 explosive articles to add the Type 6(d)
test as prescribed in the 5th Revised Edition of the UN Manual of Tests
and Criteria.
    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), title 5,
Code of Federal Regulations requires that PHMSA provide interested
members of the public and affected agencies an opportunity to comment
on information and recordkeeping requests.
    This notice identifies revised information collection requests that
PHMSA will submit to OMB for approval based on the requirements in this
proposed rule. PHMSA has developed burden estimates to reflect changes
in this proposed rule, and estimates the information collection and
recordkeeping burden as proposed in this rule to be as follows:

------------------------------------------------------------------------
                   OMB Control No.:                         2137-0034
------------------------------------------------------------------------
Annual Decrease in Number of Respondents..............        75,000,000
Annual Decrease in Annual Number of Responses.........        75,000,000
Annual Decrease in Annual Burden Hours................         1,875,000
Annual Decrease in Annual Burden Costs................     $1,875,000.00
------------------------------------------------------------------------
                   OMB Control No.:                         2137-0557
------------------------------------------------------------------------
Annual Increase in Number of Respondents..............               465
Annual Increase in Annual Number of Responses.........               465
Annual Increase in Annual Burden Hours................             2,325
Annual Increase in Annual Burden Costs................           $58,125
------------------------------------------------------------------------

    PHMSA specifically requests comments on the information collection
and recordkeeping burdens associated with developing, implementing, and
maintaining these requirements for approval under this proposed rule.
Requests for a copy of this information collection should be directed
to Steven Andrews or T. Glenn Foster, Office of Hazardous Materials
Standards (PHH-11), Pipeline and Hazardous Materials Safety
Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590-0001,
Telephone<PHONE_NUMBER>.
    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 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<PHONE_NUMBER>. 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

    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, 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
order 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. 40 CFR 1508.9(b).
1. Purpose and Need
    PHMSA is proposing to amend the Hazardous Materials 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.
These revisions are necessary to harmonize the Hazardous Materials
Regulations with recent changes to the International Maritime Dangerous
Goods Code, the International Civil Aviation Organization's Technical
Instructions for the Transport of Dangerous Goods by Air, and the
United Nations Recommendations on the Transport of Dangerous Goods. The
amendments are intended to enhance the safety 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 effective emergency response in the event of a
hazardous materials incident.
    The HMR regulate materials that meet the definition of a marine
pollutant in all modes of transportation. The intended effect is to
increase the level of safety associated with the transportation of
substances hazardous to the marine environment by way of improved
communication of their presence in transportation and establishing
appropriate requirements for their packaging. The HMR uses a list based
system designed to help shippers determine if a material meets the
definition of a marine pollutant. Recently, the IMO adopted a criteria
based system for identification of materials hazardous to the marine
environment based on the Globally Harmonized System of Classification
and Labeling of Chemicals (GHS).
2. Alternatives
    In developing this proposed rule, we considered three alternatives:
    (1) Do nothing.
    (2) Adopt the international standards in their entirety.
    (3) Adopt most of the international standards, with certain
modifications based on safety or economic considerations.
    Alternative 1:
    Because our goal is to facilitate uniformity, compliance, commerce
and safety in the transportation of hazardous materials, we rejected
this alternative.
    Alternative 2:
    By adopting the international standards in their entirety, PHMSA
could potentially adopt provisions that, in our view, do not provide an
adequate safety level. Further, because we provide for domestic
exceptions and extended compliance periods to minimize the potential
economic impact of any revisions on the regulated community, this
alternative was also rejected.
    Alternative 3:
    Consistency between U.S. and international regulations helps to
assure the safety 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 effective
emergency response in the event of a hazardous materials incident.
Under Alternative 3, we would harmonize the HMR with international
standards to the extent consistent with U.S. safety and economic goals.
    Alternative 3 is the only alternative that addresses, in all
respects, the purpose of this regulatory action, which is to facilitate
the safe and efficient transportation of hazardous materials in
international commerce. These actions will provide the greatest
possible harmonization with international requirements without posing
an undue increased cost burden on industry. For these reasons,
alternative 3 is our recommended alternative.
3. Analysis of Environmental Impacts
    Hazardous materials are transported by aircraft, vessel, rail, and
highway. The potential for environmental damage or contamination exists
when packages of hazardous materials are involved in accidents or en
route incidents resulting from cargo shifts, valve failures, package
failures, or loading, unloading, or handling problems. The ecosystems
that could be affected by a release include air, water, soil, and
ecological resources (for example, wildlife habitats). The adverse
environmental impacts associated with releases of most hazardous
materials are short-term impacts that can be greatly reduced or
eliminated through prompt clean-up of the accident scene. Most
hazardous materials are not transported in quantities sufficient to
cause significant, long-term environmental damage if they are released.
    The hazardous material regulatory system is a risk-management
system that is prevention-oriented and focused on identifying hazards
and reducing the probability and quantity of a hazardous material
release. Amending the Hazardous Materials Regulations to maintain
alignment with international standards enhances the safe transportation
of hazardous materials in domestic and international commerce. When
considering the adoption of international standards under the HMR, we
review and consider each amendment on its own merit and assess their
impact on transportation safety and the environment. It is our
preliminary conclusion that the proposals being made in this notice
will have no adverse affect on the environment we welcome public
comment on the matter.
4. Consultations and Public Comment
    On June 20, 2007, November 27, 2007, June 18, 2008, and November
19, 2008, PHMSA hosted public meetings with public and private
stakeholders to discuss draft U.S. positions on the United Nation's
Sub-Committee of Experts on the Transport of Dangerous Goods (UNSCOE)
proposals for the Sixteenth revised edition of the UN Recommendations
on the Transport of Dangerous Goods Model Regulations. In addition,
PHMSA and the U.S. Coast

Guard hosted a public meeting on September 17, 2008, and hosted a
second meeting on September 10, 2009, to discuss amendments to the IMDG
Code. A public meeting was held on September 29, 2009 to discuss
amendments to the ICAO TI. During these public meetings, U.S. positions
on proposed amendments to the UN Recommendations were considered and
discussed. Positions were established based on input received during
these meetings in conjunction with internal review, including thorough
technical review.
    We have identified a number of immediate and long-term actions that
participants in the international community are taking or will take to
enhance the safe transportation of hazardous materials. Through this
integrated and cooperative approach, we believe we can be most
successful in reducing incidents, enhancing safety, and protecting the
public. We expect to receive comments from other agencies and affected
members of the regulated and international communities during the
comment period.

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. International Trade Analysis

    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 in order to protect the safety of the American
public, and we have assessed the effects of the proposed rule to ensure
that it does not exclude imports that meet this objective. Accordingly,
this rulemaking is consistent with PHMSA's obligations under the Trade
Agreement Act, as amended.

List of Subjects

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

    Hazardous materials transportation, Incorporation by reference,
Maritime carriers, 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.

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

PART 171--GENERAL INFORMATION, REGULATIONS, AND DEFINITIONS

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

    Authority: 49 U.S.C. 5101-5128, 44701; 49 CFR 1.45 and 1.53;
Pub. L. 101-410 section 4 (28 U.S.C. 2461 note); Pub. L. 104-134
section 31001.

    2. In Sec.  171.7, in the paragraph (a)(3) table, the following
changes are made:
    a. Under the entry ``American Society for Testing and Materials
(ASTM),'' the entries ``ASTM D56-05'', ``ASTM D86-07a'', ``ASTM D93-
08'', ``ASTM D1078-05'', ``ASTM D3278-96(2004)e1'', and ``ASTM D3828-
07a'' are added in appropriate numerical order;
    b. Under the entry ``International Civil Aviation Organization
(ICAO),'' the entry ``Technical Instructions for the Safe Transport of
Dangerous Goods by Air (ICAO Technical Instructions)'' is revised;
    c. Under the entry ``International Maritime Organization (IMO)''
the entries ``International Maritime Dangerous Goods Code (IMDG Code),
'' and ``International Convention for the Safety of Life at Sea
(SOLAS)'' are revised;
    d. Under the entry ``International Organization for Standardization
(ISO),'' the entries ``ISO 2592--1973(E)''; ``ISO 10297:1999'' and
``ISO 10461:2005'' are revised; and the entries ``ISO 1516:2002'';
``ISO 1523:2002''; ``ISO 2719:2002''; ``ISO 3405:2000''; ``ISO
3679:2004''; ``ISO 3680:2004''; ``ISO 3924:1999''; ``ISO 4626:1980'';
``ISO 4706:2008''; ``ISO 10692-2:2001''; ``ISO 13736:2008''; ``ISO
16111:2008''; ``ISO 18172-1:2007'' and ``ISO 20703'' are added in
numerical order;
    e. Under the entry ``Organization for Economic Cooperation and
Development (OECD)'', the entries ``OECD Guideline for the Testing of
Chemicals, Number 430, `In Vitro Skin Corrosion: Transcutaneous
Electrical Resistance Test (TER) (2004)' '', ``OECD Guideline for the
Testing of Chemicals, Number 431, `In Vitro Skin Corrosion: Human Skin
Model Test (2004)' '', and ``OECD Guideline for the Testing of
Chemicals, Number 435, `In Vitro Membrane Barrier Test Method for Skin
Corrosion (2006)' '', are added in numerical order, and the entry
``OECD Guideline for the Testing of Chemicals, Number 404, `Acute
Dermal Irritation/Corrosion (1992)' '' is revised;
    f. Under the entry for ``Transport Canada,'' the entry
``Transportation of Dangerous Goods Regulations'' is revised; and
    g. Under the entry ``United Nations,'' the entry ``UN
Recommendations on the Transport of Dangerous Goods'' is revised.
    The additions and revisions read as follows:

Sec.  171.7  Reference material.

    (a) * * *
    (3) * * *

------------------------------------------------------------------------
        Source and name of material                49 CFR reference
------------------------------------------------------------------------

                              * * * * * * *
------------------------------------------------------------------------
            American Society for Testing and Materials (ASTM)
------------------------------------------------------------------------

                              * * * * * * *
ASTM D56-05, Standard test method for flash  173.120.
 point by tag closed cup tester.
ASTM D86-07a, Standard test method for       173.120.
 distillation of petroleum products at
 atmospheric pressure.
ASTM D93-08, Standard test methods for       173.120.
 flash point by Pensky-Martens closed cup
 tester.
ASTM D1078-05, Standard test method for      173.120.
 distillation range of volatile organic
 liquids.

                              * * * * * * *
ASTM D3278-96(2004) e1, Standard test        173.120.
 methods for flash point of liquids by
 small scale closed-cup apparatus.
ASTM D3828-07a, Standard test methods for    173.120.
 flash point by small scale closed tester.

                              * * * * * * *
------------------------------------------------------------------------
            International Civil Aviation Organization (ICAO)
------------------------------------------------------------------------

                              * * * * * * *
Technical Instructions for the Safe          171.8; 171.22; 171.23;
 Transport of Dangerous Goods by Air (ICAO    171.24; 172.202; 172.401;
 Technical Instructions), 2011-2012 Edition.  172.512; 172.602; 173.56;
                                              173.320; 175.33; 178.3.

                              * * * * * * *
------------------------------------------------------------------------
                International Maritime Organization (IMO)
------------------------------------------------------------------------

                              * * * * * * *
International Convention for the Safety of   176.63, 176.84.
 Life at Sea (SOLAS), Chapter II-2/
 Regulation 19, 2009.
International Maritime Dangerous Goods Code  171.22; 171.23; 171.25;
 (IMDG Code), 2010 Edition, Incorporating     172.101; Appendix B;
 Amendment 35-10 (English Edition), Volumes   172.202; 172.401; 172.502;
 1 and 2.                                     172.602; 173.21; 173.56;
                                              176.2; 176.5; 176.11;
                                              176.27; 176.30; 176.84;
                                              178.3.
------------------------------------------------------------------------
             International Organization for Standardization
------------------------------------------------------------------------

                              * * * * * * *
ISO 1516:2002 Determination of flash/no      173.120.
 flash--Closed cup equilibrium method.
ISO 1523:2002 Determination of flash point-- 173.120.
 Closed cup equilibrium method.
ISO 2592:2000 Petroleum products--           173.120.
 Determination of flash and fire points--
 Cleveland open cup method.
ISO 2719:2002 Determination of flash point-- 173.120.
 Pensky-Martens closed cup method.
ISO 3405:2000 Petroleum products--           173.121.
 Determination of distillation
 characteristics at atmospheric pressure.
ISO 3679:2004 Determination of flash point-- 173.120.
 Rapid equilibrium closed cup method.
ISO 3680:2004 Determination of flash/no      173.120.
 flash--Rapid equilibrium closed cup method.
ISO 3924:1999 Petroleum products--           173.121.
 Determination of boiling range
 distribution--Gas chromatography method.
ISO 4626:1980 Volatile organic liquids--     173.121.
 Determination of boiling range of organic
 solvents used as raw materials.
ISO 4706, Gas cylinders--Refillable welded   178.71.
 steel cylinders--Test pressure 60 bar and
 below, First edition, 2008.
ISO 10297, Gas cylinders--Refillable gas     173.301b, 178.71.
 cylinder valves Specification and type
 testing, Second edition, 2006, (E).
ISO 10461, Gas cylinders--Seamless aluminum- 180.207.
 alloy gas cylinders Periodic inspection
 and testing, Second edition, February
 2005, (E), and Addendum 1, (2006).
ISO 10692-2:2001 Gas cylinders--Gas          173.40.
 cylinder valve connections for use in the
 micro-electronics industry--Part 2:
 Specification and type testing for valve
 to cylinder connections'',.
ISO 13736:2008 Determination of flash        173.120.
 point--Abel closed-cup method.
ISO 16111:2008 Transportable gas storage     173.311, 178.71.
 devices--Hydrogen absorbed in reversible
 metal hydride.
ISO 18172-1, Gas cylinders--Refillable       178.71.
 welded stainless steel cylinders--Part 1:
 Test pressure 6 MPa and below, First
 edition, 2007.
ISO 20703, Gas cylinders--Refillable welded  178.71.
 aluminum-alloy cylinders--Design,
 construction and testing, First edition,
 2006.

                              * * * * * * *
------------------------------------------------------------------------
      Organization for Economic Cooperation and Development (OECD)
------------------------------------------------------------------------
OECD Guideline for the Testing of            173.137.
 Chemicals, Number 404, ``Acute Dermal
 Irritation/Corrosion'' (2002).
OECD Guideline for the Testing of            173.137.
 Chemicals, Number 430, ``In Vitro Skin
 Corrosion: Transcutaneous Electrical
 Resistance Test (TER)'' (2004).
OECD Guideline for the Testing of            173.137.
 Chemicals, Number 431, ``In Vitro Skin
 Corrosion: Human Skin Model Test'' (2004).
OECD Guideline for the Testing of            173.137.
 Chemicals, Number 435, ``In Vitro Membrane
 Barrier Test Method for Skin Corrosion''
 (2006).

                              * * * * * * *
------------------------------------------------------------------------
                            Transport Canada
------------------------------------------------------------------------

                              * * * * * * *
Transportation of Dangerous Goods            171.12; 171.22; 171.23;
 Regulations (Transport Canada TDG            172.401; 172.502; 172.519;
 Regulations), August 2001 including Clear    172.602; 173.31; 173.32;
 Language Amendments SOR 2001-286,            173.33.
 Amendment 1 (SOR/2002-306) August 8, 2002;
 Amendment 2 (SOR/2003-273) July 24, 2003;
 Amendment 3 (SOR/2003-400) December 3,
 2003; Amendment 4 (SOR/2005-216) July 13,
 2005; Amendment 5 (SOR/2005-279) September
 21, 2005; subsection 4.18(5) of Amendment
 6 (SOR/2008-34) February 7, 2008;
 Amendment 6 (SOR/2008-34) February 7,
 2008; and Amendment 7 (SOR/2007-179)
 August 22, 2007.

                              * * * * * * *
------------------------------------------------------------------------
                             United Nations
------------------------------------------------------------------------

                              * * * * * * *
UN Recommendations on the Transport of       171.12; 171.22; 171.23;
 Dangerous Goods, Sixteenth revised edition   172.202; 172.401; 172.502;
 (2009) Volumes I and II.                     173.22; 173.24; 173.24b;
                                              173.40; 173.56; 173.192;
                                              173.197; 173.302b;
                                              173.304b; 178.75; 178.274;
                                              178.801.

                              * * * * * * *
------------------------------------------------------------------------

    3. In Sec.  171.8, the definitions for ``Metal hydride storage
system'' and ``Open cryogenic receptacle'' are added and the definition
for ``Oxidizing gas'' is revised to read as follows:

Sec.  171.8  Definitions and abbreviations.

* * * * *
    Metal hydride storage system means a single complete hydrogen
storage system that includes a receptacle, metal hydride, pressure
relief device, shut-off valve, service equipment and internal
components used for the transportation of hydrogen only.
* * * * *
    Open cryogenic receptacle means a transportable thermally insulated
receptacle for refrigerated liquefied gases maintained at atmospheric
pressure by continuous venting of the refrigerated gas.
* * * * *
    Oxidizing gas means a gas that may, generally by providing oxygen,
cause or contribute to the combustion of other material more than air
does. Specifically, this means a pure gas or gas mixture with an
oxidizing power greater than 23.5% as determined by a method specified
in ISO 10156:1996 or 10156-2:2005 (IBR, see Sec.  171.7 of this
subchapter) (see also Sec.  173.115(k)).
* * * * *
    4. In Sec.  171.23, paragraph (b)(9) 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.
* * * * *
    (b) * * *
    (9) Poisonous materials, Division 6.1. Division 6.1 hazardous
materials transported by aircraft as limited quantities are not
excepted from labeling.
* * * * *
    5. In Sec.  171.25, the first sentence in paragraph (b)(1) is
revised, a new paragraph (b)(4) is added, and paragraphs (c)(5) and
(d)(3) are removed.
    The revision and addition read as follows:

Sec.  171.25  Additional requirements for the use of the IMDG Code.

* * * * *
    (b) * * *
    (1) Unless specified otherwise in this subchapter, a shipment must
conform to the requirements in part 176 of this subchapter. * * *
    * * *
    (4) Articles consigned under UN3166 and UN3171 (e.g., Engines,
internal combustion, etc., Vehicles, etc. and Battery-powered
equipment) may be prepared in accordance with the IMDG Code or this
subchapter.
* * * * *

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

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

    Authority: 49 U.S.C. 5101-5128; 44701; 49 CFR 1.53.

    7. In Sec.  172.101, the following amendments are made:
    a. A new paragraph (c)(10)(iv) is added.
    b. Paragraph (e) is amended by adding a new sentence at the end of
the paragraph; and
    c. The Hazardous Materials Table is amended by removing, adding and
revising entries, in the appropriate alphabetical sequence.
    The revisions, removals and additions read as follows:

Sec.  172.101  Purpose and use of hazardous materials table.

* * * * *
    (c) * * *
    (10) * * *
    (iv) A mixture or solution not identified in the Table specifically
by name, comprised of a single predominant hazardous material and
traces of one or more hazardous and non-hazardous materials not
affecting the classification of the predominant hazardous material must
be described using an appropriate shipping description for the
predominant hazardous material.
* * * * *
    (e) * * * Those preceded by the letters ``ID'' are associated with
proper shipping names considered appropriate for air transportation
only and recognized by the ICAO Technical Instructions (IBR, see Sec.
171.7 of this subchapter).
* * * * *

                                                                                Sec.   172.101 Hazardous Materials Table
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                    Hazardous                                                                                (8) Packaging (Sec.   173.***)              (9) Quantity limitations           (10) Vessel stowage
                    materials        Hazard                                                                            -----------------------------------------------------------------------------------------------------------------
   Symbols      descriptions and    class or     Identification          PG          Label codes    Special provisions
                 proper shipping    division        numbers                                          (Sec.   172.102)      Exceptions        Non-bulk          Bulk          Passenger    Cargo aircraft     Location          Other
                      names                                                                                aircraft/rail       only
(1)            (2)...............         (3)  (4)..............  (5)............  (6)............  (7)...............  (8A)...........  (8B)...........  (8C)..........  (9A)..........  (9B)..........  (10A).........  (10B)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
               [REMOVE]

                                                                                * * * * * * *
               Detonator,                1.4S  UN0500...........  II.............  1.4S...........  ..................  63(f), 63(g)...  62.............  None..........  25 kg.........  100 kg........  05............
                assemblies, non-
                electric, for
                blasting.

                                                                                * * * * * * *
               Engines, internal            9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  Forbidden.....  No limit......  A.............
                combustion,
                flammable gas
                powered.
               Engines, internal            9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  No limit......  No limit......  A.............
                combustion,
                flammable liquid
                powered.

                                                                                * * * * * * *
               Formaldehyde,                3  UN1198...........  III............  3, 8...........  B1, IB3, T4, TP1..  150............  203............  242...........  5 L...........  60 L..........  A.............  40.
                solutions,
                flammable.
               Formaldehyde,                8  UN2209...........  III............  8..............  IB3, T4, TP1......  154............  203............  241...........  5 L...........  60 L..........  A.............
                solutions, with
                not less than 25
                percent
                formaldehyde.

                                                                                * * * * * * *
               1-Hydroxybenzo-            4.1  UN3474...........  I..............  4.1............  162, N90..........  None...........  211............  None..........  0.5 kg........  0.5 kg........  D.............  28, 36.
                triazole,
                anhydrous, wetted
                with not less
                than 20 percent
                water, by mass.

                                                                                * * * * * * *
               Lithium                    5.1  UN1471...........  II.............  5.1............  A9, IB8, IP2, IP4,  152............  212............  240...........  5 kg..........  25 kg.........  A.............  4, 48, 52, 56,
                hypochlorite, dry                                                                    N34.                                                                                58, 69, 106,
                with more than                                                                                116.
                39% available
                chlorine (8.8%
                available oxygen)
                or Lithium
                hypochlorite
                mixtures, dry
                with more than
                39% available
                chlorine (8.8%
                available oxygen).

                                                                                * * * * * * *
               Nitric acid other            8  UN2031...........  II.............  8..............  A6, B2, B47, B53,   None...........  158............  242...........  Forbidden.....  30 L..........  D.............  44, 66, 74,
                than red fuming,                                                                     IB2, IP15, T8,                                                                                89, 90.
                with less than 65                                                                    TP2.
                percent nitric
                acid.

                                                                                * * * * * * *
               Nitric acid other            8  UN2031...........  II.............  8..............  A6, B2, B47, B53,   None...........  158............  242...........  Forbidden.....  30 L..........  D.............  44, 66, 89,
                than red fuming,                                                                     IB2, T8, TP2.                                                                                90, 110, 111.
                with not more
                than 70 percent
                nitric acid.

                                                                                * * * * * * *
               Tars, liquid                 3  UN1999...........  II.............  3..............  149, B13, IB2, T3,  150............  202............  242...........  5 L...........  60 L..........  B.............
                including road                                                                       TP3, TP29.
                asphalt and oils,
                bitumen and cut
                backs.
                                                                  III............  3..............  B1, B13, IB3, T1,   150............  203............  242...........  60 L..........  220 L.........  A.............
                                                                                TP3.

                                                                                * * * * * * *
               Trinitro-meta-            1.1D  UN0216...........  II.............  1.1D...........  ..................  None...........  62.............  None..........  Forbidden.....  Forbidden.....  10............  5E.
                cresol.

                                                                                * * * * * * *
               Vehicle, flammable           9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  Forbidden.....  No limit......  A.............
                gas powered.
               Vehicle, flammable           9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  No limit......  No limit......  A.............
                liquid powered.

                                                                                * * * * * * *
               [ADD]

                                                                                * * * * * * *
               Alkali metal               4.3  UN3482...........  I..............  4.3, 3.........  A2, A3, A7........  None...........  201............  244...........  Forbidden.....  1 L...........  D.............  52.
                dispersions,
                flammable or
                Alkaline earth
                metal
                dispersions,
                flammable.

                                                                                * * * * * * *
W............  Batteries, nickel-           9  UN3496...........  ...............  9..............  130, 340..........  ...............  ...............  ..............  ..............  ..............  A.............  48.
                metal hydride.

                                                                                * * * * * * *
               Calcium                    5.1  UN3485...........  II.............  5.1, 8.........  165, 166, A7, A9,   152............  212............  None..........  ..............  ..............  D.............  4, 48, 52, 56,
                hypochlorite,                                                                        IB8, IP2, IP4,                                                                                58, 69, 142.
                dry, corrosive or                                                                    IP13, N34, W9.
                Calcium
                hypochlorite
                mixtures, dry,
                corrosive with
                more than 39%
                available
                chlorine (8.8%
                available oxygen).

                                                                                * * * * * * *
               Calcium                    5.1  UN3487...........  II.............  5.1, 8.........  165, IB8, IP2,      152............  212............  240...........  ..............  ..............  D.............  4, 48, 52, 56,
                hypochlorite,                                                                        IP4, IP13, W9.                                                                                58, 69, 142.
                hydrated,
                corrosive or
                Calcium
                hypochlorite,
                hydrated
                mixtures,
                corrosive with
                less than 5.5%
                but not more than
                16% water.
                                                                  III............  5.1, 8.........  165, IB8, IP4, W9.  152............  213............  240...........  5 kg..........  25 kg.........  D.............  4, 48, 52, 56,
                                                                                58, 69, 142.

                                                                                * * * * * * *
               Calcium                    5.1  UN3486...........  III............  5.1, 8.........  165, A1, A29, IB8,  152............  213............  240...........  5 kg..........  25 kg.........  D.............  4, 48, 52, 56,
                hypochlorite                                                                         IP3, IP13, N34,                                                                                58, 69, 142.
                mixtures, dry,                                                                       W9.
                corrosive with
                more than 10% but
                not more than 39%
                available
                chlorine.

                                                                                * * * * * * *
A............  Consumer commodity           9  ID8000...........  ...............  9..............  ..................  167............  167............  None..........  30 kg gross...  30 kg gross.

                                                                                * * * * * * *
               Detonator                 1.4S  UN0500...........  II.............  1.4S...........  347...............  63(f), 63(g)...  62.............  None..........  25 kg.........  100 kg........  05............
                assemblies, non-
                electric, for
                blasting.

                                                                                * * * * * * *
               Engines, internal            9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  Forbidden.....  No limit......  A.............
                combustion, or
                Engines, fuel
                cell, flammable
                gas powered.
               Engines internal             9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  No limit......  No limit......  A.............
                combustion, or
                Engines, fuel
                cell, flammable
                liquid powered.

                                                                                * * * * * * *
               Formaldehyde                 3  UN1198...........  III............  3, 8...........  B1, IB3, T4, TP1..  4b, 150........  203............  242...........  5 L...........  60 L..........  A.............  40.
                solutions,
                flammable.
               Formaldehyde                 8  UN2209...........  III............  8..............  IB3, T4, TP1......  154............  203............  241...........  5 L...........  60 L..........  A.............
                solutions, with
                not less than 25
                percent
                formaldehyde.

                                                                                * * * * * * *
               Hydrazine aqueous            8  UN3484...........  I..............  8, 3, 6.1......  B16, B53, T10,      None...........  201............  243...........  Forbidden.....  2.5 L.........  D.............  40, 52, 125.
                solution,                                                                            TP2, TP13.
                flammable with
                more than 37%
                hydrazine, by
                mass.

                                                                                * * * * * * *
               1-Hydroxybenzo-            4.1  UN3474...........  I..............  4.1............  N90...............  None...........  211............  None..........  0.5 kg........  0.5 kg........  D.............  28, 36.
                triazole,
                monohydrate.

                                                                                * * * * * * *
+............  Iodine............           8  UN3495...........  III............  8, 6.1.........  IB8, IP3, T1, TP33  154............  213............  240...........  ..............  ..............  B.............  40, 55.

                                                                                * * * * * * *
               Lithium                    5.1  UN1471...........  II.............  5.1............  A9, IB8, IP2, IP4,  152............  212............  240...........  5 kg..........  25 kg.........  A.............  4, 48, 52, 56,
                hypochlorite, dry                                                                    N34.                                                                                58, 69, 106,
                with more than                                                                                116.
                39% available
                chlorine (8.8%
                available oxygen)
                or Lithium
                hypochlorite
                mixtures, dry
                with more than
                39% available
                chlorine (8.8%
                available oxygen).
                                                                  III............  5.1............  IB8, IP3, N34, T1,  152............  213............  240...........  25 kg.........  100 kg........  A.............  4, 48, 52, 56,
                                                                                TP33.                                                                                58, 69, 116.

                                                                                * * * * * * *
+............  Motor fuel anti-           6.1  UN3483...........  I..............  6.1, 3.........  14, T14, TP2, TP13  None...........  201............  244...........  Forbidden.....  30 L..........  D.............  25, 40.
                knock mixtures,
                flammable.

                                                                                * * * * * * *
               Nitric acid other            8  UN2031...........  II.............  8..............  A6, B2, B47, B53,   None...........  158............  242...........  Forbidden.....  30 L..........  D.............  44, 66, 89,
                than red fuming,                                                                     IB2, IP15, T8,                                                                                90, 110, 111.
                with more than 20                                                                    TP2.
                percent and less
                than 65 percent
                nitric acid.

                                                                                * * * * * * *
               Nitric acid other            8  UN2031...........  I..............  8, 5.1.........  A3, B47, B53, T10,  None...........  158............  242...........  Forbidden.....  2.5 L.........  D.............  44, 66, 89,
                than red fuming,                                                                     TP2, TP13.                                                                                90, 110, 111.
                with more than 70
                percent nitric
                acid.

                                                                                * * * * * * *
I............  Petroleum sour               3  UN3494...........  I..............  3, 6.1.........  343, T14, TP2,      None...........  201............  243...........  1 L...........  30 L..........  D.............  40.
                crude oil,                                                                           TP13.
                flammable, toxic.
                                                                  II.............  3, 6.1.........  343, IB2, T7, TP2.  150............  202............  243...........  5 L...........  60 L..........  D.............  40.

                                                                                * * * * * * *
                                                                  III............  3, 6.1.........  343, IB3, T4, TP1.  150............  203............  242...........  60 L..........  220 L.........  C.............  40.
               Tars, liquid                 3  UN1999...........  II.............  3..............  149, B13, IB2, T3,  150............  202............  242...........  5 L...........  60 L..........  B.............
                including road                                                                       TP3, TP29.
                oils and cutback
                bitumens.
                                                                  III............  3..............  B1, B13, IB3, T1,   150............  203............  242...........  60 L..........  220 L.........  A.............
                                                                                TP3.

                                                                                * * * * * * *
G............  Toxic by                   6.1  UN3492...........  I..............  6.1, 8, 3......  1, B9, B14, B30,    None...........  226............  244...........  Forbidden.....  Forbidden.....  D.............  40, 125.
                inhalation                                                                           B72, T22, TP2,
                liquid,                                                                              TP13, TP27, TP38,
                corrosive,                                                                           TP44.
                flammable, n.o.s.
                with an
                inhalation
                toxicity lower
                than or equal to
                200 ml/m\3\ and
                saturated vapor
                concentration
                greater than or
                equal to 500 LC50.
G............  Toxic by                   6.1  UN3493...........  I..............  6.1, 8, 3......  2, B9, B14, B32,    None...........  227............  244...........  Forbidden.....  Forbidden.....  D.............  40, 125.
                inhalation                                                                           B74, T20, TP2,
                liquid,                                                                              TP13, TP27, TP38,
                corrosive,                                                                           TP45.
                flammable, n.o.s.
                with an
                inhalation
                toxicity lower
                than or equal to
                1,000 ml/m\3\ and
                saturated vapor
                concentration
                greater than or
                equal to 10 LC50.

                                                                                * * * * * * *
G............  Toxic by                   6.1  UN3488...........  I..............  6.1, 3, 8......  1, B9, B14, B30,    None...........  226............  244...........  Forbidden.....  Forbidden.....  D.............  40, 125.
                inhalation                                                                           B72, T22, TP2,
                liquid,                                                                              TP13, TP27, TP38,
                flammable,                                                                           TP44.
                corrosive, n.o.s.
                with an
                inhalation
                toxicity lower
                than or equal to
                200 ml/m\3\ and
                saturated vapor
                concentration
                greater than or
                equal to 500 LC50.
G............  Toxic by                   6.1  UN3489...........  I..............  6.1, 3, 8......  2, B9, B14, B32,    None...........  227............  244...........  Forbidden.....  Forbidden.....  D.............  40, 125.
                inhalation                                                                           B74, T20, TP2,
                liquid,                                                                              TP13, TP27, TP38,
                flammable,                                                                           TP45.
                corrosive, n.o.s.
                with an
                inhalation
                toxicity lower
                than or equal to
                1,000 ml/m\3\ and
                saturated vapor
                concentration
                greater than or
                equal to 10 LC50.

                                                                                * * * * * * *
G............  Toxic by                   6.1  UN3490...........  I..............  6.1, 4.3, 3....  1, B9, B14, B30,    None...........  226............  244...........  Forbidden.....  Forbidden.....  D.............  21, 28, 40,
                inhalation                                                                           B72, T22, TP2,                                                                                49.
                liquid, water-                                                                       TP13, TP27, TP38,
                reactive,                                                                            TP44.
                flammable, n.o.s.
                with an
                inhalation
                toxicity lower
                than or equal to
                200 ml/m\3\ and
                saturated vapor
                concentration
                greater than or
                equal to 500 LC50.
G............  Toxic by                   6.1  UN3491...........  I..............  6.1, 4.3, 3....  2, B9, B14, B32,    None...........  227............  244...........  Forbidden.....  Forbidden.....  D.............  21, 28, 40,
                inhalation                                                                           B74, T20, TP2,                                                                                49.
                liquid, water-                                                                       TP13, TP27, TP38,
                reactive,                                                                            TP45.
                flammable, n.o.s.
                with an
                inhalation
                toxicity lower
                than or equal to
                1,000 ml/m\3\ and
                saturated vapor
                concentration
                greater than or
                equal to 10 LC50.

                                                                                * * * * * * *
               Trinitro-m-cresol.        1.1D  UN0216...........  II.............  1.1D...........  ..................  None...........  62.............  None..........  Forbidden.....  Forbidden.....  10............  5E.

                                                                                * * * * * * *
               Vehicle, flammable           9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  Forbidden.....  No limit......  A.............
                gas powered or
                Vehicle, fuel
                cell, flammable
                gas powered.
               Vehicle, flammable           9  UN3166...........  ...............  9..............  135...............  220............  220............  220...........  No limit......  No limit......  A.............
                liquid powered or
                Vehicle, fuel
                cell, flammable
                liquid powered.

                                                                                * * * * * * *
               [REVISE]

                                                                                * * * * * * *
               Air, compressed...         2.2  UN1002...........  ...............  2.2............  78................  306, 307.......  302............  302...........  75 kg.........  150 kg........  A.............

                                                                                * * * * * * *
               Alcohols, n.o.s...           3  UN1987...........  I..............  3..............  172, T11, TP1,      4b.............  201............  243...........  1 L...........  30 L..........  E.............
                                                                                TP8, TP27.
                                                                  II.............  ...............  172, IB2, T7, TP1,  4b, 150........  202............  242...........  5 L...........  60 L..........  B.............
                                                                                TP8, TP28.
                                                                  III............  ...............  172, B1, IB3, T4,   4b, 150........  203............  242...........  60 L..........  220 L.........  A.............
                                                                                TP1, TP29.

                                                                                * * * * * * *
G............  Antimony                   6.1  UN3141...........  III............  6.1............  35, IB3, T7, TP1,   153............  203............  241...........  60 L..........  220 L.........  A.............
                compounds,                                                                           TP28.
                inorganic,
                liquid, n.o.s.
G............  Antimony                   6.1  UN1549...........  III............  6.1............  35, IB8, IP3, T1,   153............  213............  240...........  100 kg........  200 kg........  A.............
                compounds,                                                                           TP33.
                inorganic, solid,
                n.o.s.

                                                                                * * * * * * *
               Argon,                     2.2  UN1951...........  ...............  2.2............  T75, TP5..........  320............  316............  318...........  50 kg.........  500 kg........  D.............
                refrigerated
                liquid (cryogenic
                liquid).

                                                                                * * * * * * *
G............  Arsenic compounds,         6.1  UN1556...........  I..............  6.1............  T14, TP2, TP13,     None...........  201............  243...........  1 L...........  30 L..........  B.............  40, 137.
                liquid, n.o.s.                                                                       TP27.
                inorganic,
                including
                arsenates,
                n.o.s.;
                arsenites,
                n.o.s.; arsenic
                sulfides, n.o.s.;
                and organic
                compounds of
                arsenic, n.o.s.
                                                                  II.............  6.1............  IB2, T11, TP2,      153............  202............  243...........  5 L...........  60 L..........  B.............  40, 137.
                                                                                TP13, TP27.
                                                                  III............  6.1............  IB3, T7, TP2, TP28  153............  203............  241...........  60 L..........  220 L.........  B.............  40, 137.
G............  Arsenic compounds,         6.1  UN1557...........  I..............  6.1............  IB7, IP1, T6, TP33  None...........  201............  242...........  5 kg..........  50 kg.........  A.............  137.
                solid, n.o.s.
                inorganic,
                including
                arsenates,
                n.o.s.;
                arsenites,
                n.o.s.; arsenic
                sulfides, n.o.s.;
                and organic
                compounds of
                arsenic, n.o.s.
                                                                  II.............  6.1............  IB8, IP2, IP4, T3,  153............  212............  242...........  25 kg.........  100 kg........  A.............  137.
                                                                                TP33.
                                                                  III............  6.1............  IB8, IP3, T1, TP33  153............  213............  240...........  100 kg........  200 kg........  A.............  137.

                                                                                * * * * * * *
G............  Barium compounds,          6.1  UN1564...........  II.............  6.1............  IB8, IP2, IP4, T3,  153............  212............  242...........  25 kg.........  100 kg........  A.............
                n.o.s.                                                                               TP33.
                                                                  III............  6.1............  IB8, IP3, T1, TP33  153............  213............  240...........  100 kg........  200 kg........  A.............

                                                                                * * * * * * *
G............  Beryllium                  6.1  UN1566...........  II.............  6.1............  IB8, IP2, IP4, T3,  153............  212............  242...........  25 kg.........  100 kg........  A.............
                compounds, n.o.s.                                                                    TP33.
                                                                  III............  6.1............  IB8, IP3, T1, TP33  153............  213............  240...........  100 kg........  200 kg........  A.............

                                                                                * * * * * * *
G............  Bromates,                  5.1  UN3213...........  II.............  5.1............  350, IB2, T4, TP1.  152............  202............  242...........  1 L...........  5 L...........  B.............  56, 58, 133.
                inorganic,
                aqueous solution,
                n.o.s.
                                                                  III............  5.1............  350, IB2, T4, TP1.  152............  203............  241...........  2.5 L.........  30 L..........  B.............  56, 58, 133.
G............  Bromates,                  5.1  UN1450...........  II.............  5.1............  350, IB8, IP2,      152............  212............  242...........  5 kg..........  25 kg.........  A.............  56, 58.
                inorganic, n.o.s.                                                                    IP4, T3, TP33.

                                                                                * * * * * * *
+............  tert-Butyl                 6.1  UN2484...........  I..............  6.1, 3.........  1, B9, B14, B30,    None...........  226............  244...........  Forbidden.....  Forbidden.....  D.............  40.
                isocyanate.                                                                          T20, TP2, TP13,
                                                                                TP38, TP44.

                                                                                * * * * * * *
G............  Cadmium compounds.         6.1  UN2570...........  I..............  6.1............  IB7, IP1, T6, TP33  None...........  211............  242...........  5 kg..........  50 kg.........  A.............
                                                                  II.............  6.1............  IB8, IP2, IP4, T3,  153............  212............  242...........  25 kg.........  100 kg........  A.............
                                                                                TP33.
                                                                  III............  6.1............  IB8, IP3, T1, TP33  153............  213............  240...........  100 kg........  200 kg........  A.............

                                                                                * * * * * * *
               Carbon dioxide,            2.2  UN2187...........  ...............  2.2............  T75, TP5..........  306............  304............  314, 315......  50 kg.........  500 kg........  D.............
                refrigerated
                liquid.
A W..........  Carbon dioxide,              9  UN1845...........  ...............  None...........  ..................  217............  217............  240...........  200 kg........  200 kg........  C.............  40.
                solid or Dry ice.
               Carbon disulfide..           3  UN1131...........  I..............  3, 6.1.........  B16, T14, TP2,      None...........  201............  243...........  Forbidden.....  Forbidden.....  D.............  40, 78, 115.
                                                                                TP7, TP13.

                                                                                * * * * * * *
               Cartridges, power         1.4S  UN0323...........  II.............  1.4S...........  110, 347..........  63.............  62.............  None..........  25 kg.........  100 kg........  05............
                device.

                                                                                * * * * * * *
D............  Cartridges, power        ORM-D  None.............  ...............  None...........  347...............  63.............  None...........  None..........  30 kg gross...  30 kg gross...  A.............
                device (used to
                project fastening
                devices).

                                                                                * * * * * * *
               Charges, bursting,        1.4S  UN0460...........  II.............  1.4S...........  347...............  None...........  62.............  None..........  25 kg.........  100 kg........  05............
                plastics bonded.

                                                                                * * * * * * *
               Charges,                  1.4S  UN0445...........  II.............  1.4S...........  347...............  None...........  62.............  None..........  25 kg.........  100 kg........  05............
                explosive,
                commercial
                without detonator.

                                                                                * * * * * * *
               Charges, shaped,          1.4S  UN0441...........  II.............  1.4S...........  347...............  None...........  62.............  None..........  25 kg.........  100 kg........  05............
                without detonator.

                                                                                * * * * * * *
G............  Chlorates,                 5.1  UN3210...........  II.............  5.1............  351, IB2, T4, TP1.  152............  202............  242...........  1 L...........  5 L...........  B.............  56, 58, 133.
                inorganic,
                aqueous solution,
                n.o.s.
                                                                  III............  5.1............  351, IB2, T4, TP1.  152............  203............  241...........  2.5 L.........  30 L..........  B.............  56, 58, 133.
G............  Chlorates,                 5.1  UN1461...........  II.............  5.1............  351, A7, IB6, IP2,  152............  212............  242...........  5 kg..........  25 kg.........  A.............  56, 58.
                inorganic, n.o.s.                                                                    N34, T3, TP33.

                                                                                * * * * * * *
G............  Chlorites,                 5.1  UN1462...........  II.............  5.1............  352, A9, IB6, IP2,  152............  212............  242...........  5 kg..........  25 kg.........  A.............  56, 58.
                inorganic, n.o.s.                                                                    N34, T3, TP33.

                                                                                * * * * * * *
+............  Chloroacetonitrile         6.1  UN2668...........  I..............  6.1, 3.........  2, B9, B14, B32,    None...........  227............  244...........  Forbidden.....  Forbidden.....  D.............  12, 40, 52.
                                                                                IB9, T20, TP2,
                                                                                TP13, TP38, TP45.

                                                                                * * * * * * *
+............  Chloropicrin......         6.1  UN1580...........  I..............  6.1............  2, B7, B9, B14,     None...........  227............  244...........  Forbidden.....  Forbidden.....  D.............  40.
                                                                                B32, B46, T22,
                                                                                TP2, TP13, TP38,
                                                                                TP45.

                                                                                * * * * * * *
G............  Chloropicrin               6.1  UN1583...........  I..............  6.1............  5.................  None...........  201............  243...........  Forbidden.....  Forbidden.....  C.............  40.
                mixtures, n.o.s.
                                                                  II.............  6.1............  IB2...............  153............  202............  243...........  Forbidden.....  Forbidden.....  C.............  40.
                                                                  III............  6.1............  IB3...............  153............  203............  241...........  Forbidden.....  Forbidden.....  C.............  40.

                                                                                * * * * * * *
G............  Chlorosilanes,             6.1  UN3362...........  II.............  6.1, 3, 8......  T14, TP2, TP7,      None...........  206............  243...........  1 L...........  30 L..........  C.............  40, 125.
                toxic, corrosive,                                                                    TP13, TP27.
                flammable, n.o.s.
G............  Chlorosilanes,             6.1  UN3361...........  II.............  6.1, 8.........  T14, TP2, TP7,      None...........  206............  243...........  1 L...........  30 L..........  C.............  40.
                toxic, corrosive,                                                                    TP13, TP27.
                n.o.s.

                                                                                * * * * * * *
G............  Compressed gas,            2.2  UN1956...........  ...............  2.2............  ..................  306, 307.......  302, 305.......  314, 315......  75 kg.........  150 kg........  A.............
                n.o.s.

                                                                                * * * * * * *
               Crotonaldehyde or          6.1  UN1143...........  I..............  6.1, 3.........  2, 175, B9, B14,    None...........  227............  244...........  Forbidden.....  Forbidden.....  D.............  40.
                Crotonaldehyde,                                                                      B32, B77, T20,
                stabilized.                                                                          TP2, TP13, TP38,
                                                                                TP45.

                                                                                * * * * * * *
G............  Cyanide solutions,         6.1  UN1935...........  I..............  6.1............  B37, T14, TP2,      None...........  201............  243...........  1 L...........  30 L..........  B.............  40, 52.
                n.o.s.                                                                               TP13, TP27.
                                                                  II.............  6.1............  IB2, T11, TP2,      153............  202............  243...........  5 L...........  60 L..........  A.............  40, 52.
                                                                                TP13, TP27.
                                                                  III............  6.1............  IB3, T7, TP2,       153............  203............  241...........  60 L..........  220 L.........  A.............  40, 52.
                                                                                TP13, TP28.

                                                                                * * * * * * *
               Detonators,               1.4S  UN0456...........  II.............  1.4S...........  347...............  63(f), 63(g)...  62.............  None..........  25 kg.........  100 kg........  05............
                electric for
                blasting.

                                                                                * * * * * * *
               Detonators for            1.4S  UN0366...........  II.............  1.4S...........  347...............  None...........  62.............  None..........  25 kg.........  100 kg........  05............
                ammunition.

                                                                                * * * * * * *
               Detonators, non-          1.4S  UN0455...........  II.............  1.4S...........  347...............  63(f), 63(g)...  62.............  None..........  25 kg.........  100 kg........  05............
                electric, for
                blasting.

                                                                                * * * * * * *
G............  Elevated                     3  UN3256...........  III............  3..............  IB1, T3, TP3, TP29  None...........  None...........  247...........  Forbidden.....  Forbidden.....  A.............
                temperature
                liquid,
                flammable,
                n.o.s., with
                flash point above
                37.8 C, at or
                above its flash
                point.
G............  Elevated                     9  UN3257...........  III............  9..............  IB1, T3, TP3, TP29  None...........  None...........  247...........  Forbidden.....  Forbidden.....  A.............  85.
                temperature
                liquid, n.o.s.,
                at or above 100 C
                and below its
                flash point
                (including molten
                metals, molten
                salts, etc.).
G............  Elevated                     9  UN3258...........  III............  9..............  ..................  247(h)(4)......  None...........  247...........  Forbidden.....  Forbidden.....  A.............  85.
                temperature
                solid, n.o.s., at
                or above 240 C,
                see Sec.
                173.247(h)(4).

                                                                                * * * * * * *
G............  Environmentally              9  UN3077...........  III............  9..............  8, 146, A112, B54,  155............  213............  240...........  No limit......  No limit......  A.............
                hazardous                                                                            IB8, IP3, N20,
                substance, solid,                                                                    T1, TP33.
                n.o.s.

                                                                                * * * * * * *
               Ethanol or Ethyl             3  UN1170...........  II.............  3..............  24, IB2, T4, TP1..  4b, 150........  202............  242...........  5 L...........  60 L..........  A.............
                alcohol or
                Ethanol solutions
                or Ethyl alcohol
                solutions.
                                                                  III............  ...............  24, B1, IB3, T2,    4b, 150........  203............  242...........  60 L..........  220 L.........  A.............
                                                                                TP1.

                                                                                * * * * * * *
+............  Ethyl isocyanate..         6.1  UN2481...........  I..............  6.1, 3.........  1, B9, B14, B30,    None...........  226............  244...........  Forbidden.....  Forbidden.....  D.............  40, 52.
                                                                                T20, TP2, TP13,
                                                                                TP38, TP44.

                                                                                * * * * * * *
G............  Fluorosilicates,           6.1  UN2856...........  III............  6.1............  IB8, IP3, T1, TP33  153............  213............  240...........  100 kg........  200 kg........  A.............  52.
                n.o.s.

                                                                                * * * * * * *
               Helium,                    2.2  UN1963...........  ...............  2.2............  T75, TP5..........  320............  316............  318...........  50 kg.........  500 kg........  D.............
                refrigerated
                liquid (cryogenic
                liquid).

                                                                                * * * * * * *
               Hydrogen in a              2.1  UN3468...........  ...............  2.1............  167...............  None...........  311............  None..........  Forbidden.....  100 kg gross..  D.............
                metal hydride
                storage system or
                Hydrogen in a
                metal hydride
                storage system
                contained in
                equipment or
                Hydrogen in a
                metal hydride
                storage system
                packed with
                equipment.

                                                                                * * * * * * *
G............  Hypochlorites,             5.1  UN3212...........  II.............  5.1............  349, A9, IB8, IP2,  152............  212............  240...........  5 kg..........  25 kg.........  D.............  4, 48, 52, 56,
                inorganic, n.o.s.                                                                    IP4, T3, TP33.                                                                                58, 69, 106,
                                                                                116, 118.

                                                                                * * * * * * *
+............  Isobutyl                   6.1  UN2486...........  I..............  6.1, 3.........  1, B9, B14, B30,    None...........  226............  244...........  Forbidden.....  Forbidden.....  D.............  40.
                isocyanate.                                                                          T20, TP2, TP13,
                                                                                TP27.

                                                                                * * * * * * *
               Isopropanol or               3  UN1219...........  II.............  3..............  IB2, T4, TP1......  4b, 150........  202............  242...........  5 L...........  60 L..........  B.............
                Isopropyl alcohol.

                                                                                * * * * * * *
+............  Isopropyl                  6.1  UN2483...........  I..............  6.1, 3.........  1, B9, B14, B30,    None...........  226............  244...........  Forbidden.....  Forbidden.....  D.............  40.
                isocyanate.                                                                          T20, TP2, TP13,
                                                                                TP38, TP44.

                                                                                * * * * * * *
               Krypton,                   2.2  UN1970...........  ...............  2.2............  T75, TP5..........  320............  None...........  None..........  50 kg.........  500 kg........  D.............
                refrigerated
                liquid (cryogenic
                liquid).

                                                                                * * * * * * *
G............  Lead compounds,            6.1  UN2291...........  III............  6.1............  138, IB8, IP3, T1,  153............  213............  240...........  100 kg........  200 kg........  A.............
                soluble, n.o.s.                                                                      TP33.

                                                                                * * * * * * *
               Medicine, liquid,            3  UN3248...........  II.............  3, 6.1.........  IB2...............  150............  202............  243...........  1 L...........  60 L..........  B.............  40.
                flammable, toxic,
                n.o.s.