3. In Sec.  171.12, revise paragraph (a)(4)(iii) to read as follows:

Sec.  171.12  North American Shipments.

* * * * *
    (a) * * *
    (4) * * *
    (iii) Authorized CRC, BTC, CTC or TC specification cylinders that
correspond with a DOT specification cylinder are as follows:

--------------------------------------------------------------------------------------------------------------------------------------------------------
                                   DOT (some or all of these specifications may instead be      CTC (some or all of these specifications may instead be
               TC                                marked with the prefix ICC)                              marked with the prefix BTC or CRC)
--------------------------------------------------------------------------------------------------------------------------------------------------------
TC-3AM.........................  DOT-3A [ICC-3].............................................  CTC-3A.
TC-3AAM........................  DOT-3AA....................................................  CTC-3AA
TC-3ANM........................  DOT-3BN....................................................  CTC-3BN.
TC-3EM.........................  DOT-3E.....................................................  CTC-3E.
TC-3HTM........................  DOT-3HT....................................................  CTC-3HT.
TC-3ALM........................  DOT-3AL....................................................  CTC-3AL.
                                 DOT-3B.....................................................  CTC-3B.
TC-3AXM........................  DOT-3AX....................................................  CTC-3AX.
TC-3AAXM.......................  DOT-3AAX...................................................  CTC-3AAX.
                                 DOT-3A480X.................................................  CTC-3A480X.
TC-3TM.........................  DOT-3T.....................................................  ..........................................................
TC-4AAM33......................  DOT-4AA480.................................................  CTC-4AA480.
TC-4BM.........................  DOT-4B.....................................................  CTC-4B.
TC-4BM17ET.....................  DOT-4B240ET................................................  CTC-4B240ET.
TC-4BAM........................  DOT-4BA....................................................  CTC-4BA.
TC-4BWM........................  DOT-4BW....................................................  CTC-4BW.
TC-4DM.........................  DOT-4D.....................................................  CTC-4D.
TC-4DAM........................  DOT-4DA....................................................  CTC-4DA.
TC-4DSM........................  DOT-4DS....................................................  CTC-4DS.
TC-4EM.........................  DOT-4E.....................................................  CTC-4E.
TC-39M.........................  DOT-39.....................................................  CTC-39.
TC-4LM.........................  DOT-4L.....................................................  CTC-4L.
TC-8WM.........................  DOT-8......................................................  CTC-8.
TC8-WAM........................  DOT-8AL....................................................  CTC-8AL.
--------------------------------------------------------------------------------------------------------------------------------------------------------

* * * * *
0
4. In Sec.  171.23, revise paragraph (a)(3) to read as follows:

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

    (a) * * *
    (3) Pi-marked cylinders. Cylinders with a water capacity not
exceeding 150 L and that are marked with a pi mark, in accordance with
the European Directive 2010/35/EU (IBR, see Sec.  171.7), on
transportable pressure equipment (TPED), and that comply with the
requirements of Packing Instruction P200 or P208 and 6.2 of the
Agreement Concerning the International Carriage of Dangerous Goods by
Road (ADR) (IBR, see Sec.  171.7), concerning pressure relief device
use, test period, filling ratios, test pressure, maximum working
pressure, and material compatibility for the lading contained or gas
being filled, are authorized as follows:
    (i) Filled cylinders imported for intermediate storage, transport
to point of use, discharge, and export without further filling; and
    (ii) Cylinders imported or domestically sourced for the purpose of
filling, intermediate storage, and export.
    (iii) The bill of lading or other shipping paper must identify the
cylinder and include the following certification: ``This cylinder
(These cylinders) conform(s) to the requirements for pi-marked
cylinders found in Sec.  171.23(a)(3).''
* * * * *
0
5. In Sec.  171.25:
0
a. Revise paragraphs (c)(3) and (4); and
0
b. Add paragraph (c)(5).
    To read as follows:

Sec.  171.25  Conditions and requirements for bulk packagings.

* * * * *
    (c) * * *
    (3) Except as specified in this subpart, for a material poisonous
(toxic) by inhalation, the T Codes specified in Column 13 of the
Dangerous Goods List in the IMDG Code may be applied to the
transportation of those materials in IM, IMO, and DOT Specification 51
portable tanks, when these portable tanks are authorized in accordance
with the requirements of this subchapter;
    (4) No person may offer an IM or UN portable tank containing liquid
hazardous materials of Class 3, PG I or II, or PG III with a flash
point less than 100 [deg]F (38 [deg]C); Division 5.1, PG I or II; or
Division 6.1, PG I or II, for unloading while it remains on a transport
vehicle with the motive power unit attached, unless it conforms to the
requirements in Sec.  177.834(o) of this subchapter; and
    (5) No person may offer a UN fiber-reinforced plastic portable tank
meeting the provisions of Chapter 6.10 of the IMDG Code (IBR, see Sec.
171.7), except for transportation falling within the single port area
criteria in paragraph (d) of this section.
* * * * *

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

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

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

0
7. In 172.101:
0
a. Revise paragraph (c)(12)(ii); and
0
b. In the Hazardous Materials Table, amend by removing the entries
under ``[REMOVE]'' by adding the entries under ``[ADD]'' and by
revising entries under ``[REVISE]'' in the appropriate alphabetical
sequence.
    The additions and revisions read as follows:

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

    (c) * * *
    (12) * * *
    (ii) Generic or n.o.s. descriptions. If an appropriate technical
name is not shown in the Table, selection of a proper shipping name
shall be made from the generic or n.o.s. descriptions corresponding to
the specific hazard class, packing group, hazard zone, or subsidiary
hazard, if any, for the material. The name that most appropriately
describes the material shall be used, e.g., an alcohol not listed by
its technical name in the Table shall be described as ``Alcohol,
n.o.s.'' rather than ``Flammable liquid, n.o.s.'' Some mixtures may be
more appropriately described according to their application, such as
``Coating solution'' or ``Extracts, liquid, for flavor or aroma,''
rather than by an n.o.s. entry, such as ``Flammable liquid, n.o.s.'' It
should be noted, however, that an n.o.s. description as a proper
shipping name may not provide sufficient information for shipping
papers and package markings. Under the provisions of subparts C and D
of this part, the technical name of one or more constituents which
makes the product a hazardous material may be required in association
with the proper shipping name.
* * * * *
BILLING CODE 4910-60-P

[GRAPHIC] [TIFF OMITTED] TP30MY23.000

[GRAPHIC] [TIFF OMITTED] TP30MY23.001

[GRAPHIC] [TIFF OMITTED] TP30MY23.002

BILLING CODE 4910-60-C
* * * * *
0
8. In Sec.  172.102 paragraph (c)(1):
0
a. Revise special provisions 78, 156, 387;
0
b. Add special provisions 396, 398;
0
c. Remove and reserve special provision 421;
0
d. Add special provision 441;
0
e. Revise special provision A54 and;

0
 f. Add special provisions A224, A225, IP15, IP22 in numerical order.
    The additions and revisions read as follows:

Sec.  172.102  Special provisions.

* * * * *
    (c) * * *
    (1) * * *
    78 Mixtures of nitrogen and oxygen containing not less than 19.5%
and not more than 23.5% oxygen by volume may be transported under this
entry when no other oxidizing gases are present. A Division 5.1
subsidiary hazard label is not required for any concentrations within
this limit. Compressed air containing greater than 23.5% oxygen by
volume must be shipped using the description ``Compressed gas,
oxidizing, n.o.s., UN3156.''
* * * * *
    156 Asbestos that is immersed or fixed in a natural or artificial
binder material, such as cement, plastic, asphalt, resins, or mineral
ore, or contained in manufactured products, is not subject to the
requirements of this subchapter, except that when transported by air,
an indication of compliance with this special provision must be
provided by including the words ``not restricted'' on a shipping paper,
such as an air waybill accompanying the shipment.
* * * * *
    387 When materials are stabilized by temperature control, the
provisions of Sec.  173.21(f) of this subchapter apply. When chemical
stabilization is employed, the person offering the material for
transport shall ensure that the level of stabilization is sufficient to
prevent the material as packaged from dangerous polymerization at 50
[deg]C (122 [deg]F). If chemical stabilization becomes ineffective at
lower temperatures within the anticipated duration of transport,
temperature control is required and is forbidden by aircraft. In making
this determination factors to be taken into consideration include, but
are not limited to, the capacity and geometry of the packaging and the
effect of any insulation present; the temperature of the material when
offered for transport; the duration of the journey and the ambient
temperature conditions typically encountered in the journey
(considering also the season of year); the effectiveness and other
properties of the stabilizer employed; applicable operational controls
imposed by regulation (e.g., requirements to protect from sources of
heat, including other cargo carried at a temperature above ambient);
and any other relevant factors.
* * * * *
    396 Large and robust articles may be transported with connected gas
cylinders with the valves open regardless of Sec.  173.24(b)(1),
provided:
    a. the gas cylinders contain nitrogen of UN 1066 or compressed gas
of UN 1956 or compressed air of UN1002;
    b. the gas cylinders are connected to the article through pressure
regulators and fixed piping in such a way that the pressure of the gas
(gauge pressure) in the article does not exceed 35 kPa (0.35 bar);
    c. the gas cylinders are properly secured so that they cannot shift
in relation to the article and are fitted with strong and pressure
resistant hoses and pipes;
    d. the gas cylinders, pressure regulators, piping, and other
components are protected from damage and impacts during transport by
wooden crates or other suitable means;
    e. the shipping paper must include the following statement:
``Transport in accordance with special provision 396.''; and
    f. cargo transport units containing articles transported with
cylinders with open valves containing a gas presenting a risk of
asphyxiation are well ventilated.
* * * * *
    398 This entry applies to 1-butylene, cis-2-butylene and trans-2-
butylene, and mixtures of butylenes. For isobutylene, see UN 1055.
* * * * *
    421 [Reserved]
    441 Mixtures of fluorine and nitrogen with a fluorine concentration
below 35% by volume may be filled in pressure receptacles up to a
maximum allowable working pressure for which the partial pressure of
fluorine does not exceed 31 bar (abs.).

Working pressure
(bar)<31/xf-1, in which xf = fluorine concentration in % by volume/100.

    Mixtures of fluorine and inert gases with a fluorine concentration
below 35% by volume may be filled in pressure receptacles up to a
maximum allowable working pressure for which the partial pressure of
fluorine does not exceed 31 bar (abs.), additionally taking the
coefficient of nitrogen equivalency in accordance with ISO 10156:2017
into account when calculating the partial pressure.

Working pressure (bar)<31xf(xf+Kkxxk)-1, in which xf = fluorine
concentration in % by volume/100; Kk = coefficient of equivalency of an
inert gas relative to nitrogen (coefficient of nitrogen equivalency);
xk = inert gas concentration in % by volume/100;
Kk = coefficient of equivalency of an inert gas relative to nitrogen
(coefficient of nitrogen equivalency);
xk = inert gas concentration in % by volume/100.

    However, the working pressure for mixtures of fluorine and inert
gases shall not exceed 200 bar. The minimum test pressure of pressure
receptacles for mixtures of fluorine and inert gases equals 1.5 times
the working pressure or 200 bar, with the greater value to be applied.
* * * * *
    A54 Irrespective of the quantity limits in Column 9B of the Sec.
172.101 table, a lithium battery, including a lithium battery packed
with, or contained in, equipment that otherwise meets the applicable
requirements of Sec.  173.185, may have a mass exceeding 35 kg if
approved by the Associate Administrator prior to shipment in accordance
with this special provision must be noted on the shipping papers.
* * * * *
    A224 UN3548, Articles containing miscellaneous dangerous goods,
n.o.s. may be transported on passenger and cargo aircraft, irrespective
of the indication of ``forbidden'' in Columns (9A) and (9B) of the
Hazardous Materials Table, provided: (a) the only dangerous good
contained in the article is an environmentally hazardous substance, or
lithium cells or batteries that comply with Sec.  173.185; (b) the
articles are packed in accordance with Sec.  173.232; and (c) reference
to Special Provision A224 is made on the shipping paper.
* * * * *
    A225 UN3538, Articles containing non-flammable, non-toxic gas,
n.o.s. may be transported on passenger and cargo aircraft irrespective
of the indication of ``forbidden'' in Columns (9A) and (9B) of the
Hazardous Materials Table, provided: (a) the only dangerous good
contained in the article is a Division 2.2 gas without a subsidiary
hazard, but excluding refrigerated liquefied gases and gases forbidden
for transport on passenger aircraft, or lithium cells or batteries that
comply with Sec.  173.185; (b) the articles are packed in accordance
with Sec.  173.232 and limited to a maximum net quantity of gas of 75
kg by passenger aircraft and 150 kg by cargo aircraft; and (c)
reference to Special Provision A225 is made on the shipping paper.
* * * * *

    IP15 For UN2031 with more than 55% nitric acid, the permitted use
of rigid plastic IBCs, and the inner receptacle of composite IBCs with
rigid plastics, shall be two years from their date of manufacture.
* * * * *
    IP22 UN3550 may be transported in flexible IBCs (13H3 or 13H4) with
siftproof liners to prevent any egress of dust during transport.
* * * * *

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

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

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

0
10. In Sec.  173.4b, revise paragraph (b)(1) to read as follows:

Sec.  173.4b  De minimis exceptions.

* * * * *
    (b) * * *
    (1) The specimens are:
    (i) Wrapped in a paper towel or cheesecloth moistened with alcohol,
an alcohol solution, or a formaldehyde solution and placed in a plastic
bag that is heat-sealed. Any free liquid in the bag must not exceed 30
mL; or
    (ii) Placed in vials or other rigid containers with no more than 30
mL of alcohol, an alcohol solution, or a formaldehyde solution. The
containers are placed in a plastic bag that is heat-sealed;
* * * * *
0
11. In Sec.  173.21 revise paragraphs (f) introductory text, (f)(1),
and (f)(2) to read as follows:

Sec.  173.21  Forbidden materials and packages.

* * * * *
    (f) A package containing a material which is likely to decompose
with a self-accelerated decomposition temperature (SADT) or polymerize
with a self-accelerated polymerization temperature (SAPT) of 50 [deg]C
(122 [deg]F) or less, or 45 [deg]C (113 [deg]F) or less when offered
for transportation in portable tanks, with an evolution of a dangerous
quantity of heat or gas when decomposing or polymerizing, unless the
material is stabilized or inhibited in a manner to preclude such
evolution. For organic peroxides see paragraph (f)(2) of this section.
The SADT and SAPT may be determined by any of the test methods
described in Part II of the UN Manual of Tests and Criteria (IBR, see
Sec.  171.7 of this subchapter).
    (1) A package meeting the criteria of paragraph (f) of this section
may be required to be shipped under controlled temperature conditions.
The control temperature and emergency temperature for a package shall
be as specified in Table 1 in this paragraph based upon the SADT or
SAPT of the material. The control temperature is the temperature above
which a package of the material may not be offered for transportation
or transported. The emergency temperature is the temperature at which,
due to imminent danger, emergency measures must be initiated.

                  Table 1 to Paragraph (f)(1)--Derivation of Control and Emergency Temperature
----------------------------------------------------------------------------------------------------------------
          Type of receptacle                SADT/SAPT \1\         Control temperatures    Emergency temperature
----------------------------------------------------------------------------------------------------------------
Single packagings and IBCs...........  SADT/SAPT <=20 [deg]C    20 [deg]C (36 [deg]F)    10 [deg]C (18 [deg]F)
                                        (68 [deg]F).             below SADT/SAPT.         below SADT/SAPT.
Single packagings and IBCs...........  20 [deg]C (68 [deg]F)    15 [deg]C (27 [deg]F)    10 [deg]C (18 [deg]F)
                                        =88 + <=12               OP8                 -10                  0  .........
 Diisopropylperoxydicarbonate.....................
2,5-Dimethoxy-4-(4-                                           3236                79               OP7                + 40               + 45  .........
 methylphenylsulphony)benzenediazonium zinc
 chloride.........................................
4-Dimethylamino-6-(2-dimethylaminoethoxy)toluene-2-           3236               100               OP7                + 40               + 45  .........
 diazonium zinc chloride..........................
4-(Dimethylamino)-benzenediazonium                            3228               100               OP8  .....................  ..............  .........
 trichlorozincate (-1)............................
N,N'-Dinitroso-N, N'-dimethyl-terephthalamide, as             3224                72               OP6  .....................  ..............  .........
 a paste..........................................
N,N'-Dinitrosopentamethylenetetramine.............            3224                82               OP6  .....................  ..............          2
Diphenyloxide-4,4'-disulphohydrazide..............            3226               100               OP7  .....................  ..............  .........
Diphenyloxide-4,4'-disulphonylhydrazide...........            3226               100               OP7  .....................  ..............  .........
4-Dipropylaminobenzenediazonium zinc chloride.....            3226               100               OP7  .....................  ..............  .........
2-(N,N-Ethoxycarbonylphenylamino)-3-methoxy-4-(N-             3236             63-92               OP7                + 40               + 45  .........
 methyl-N- cyclohexylamino)benzenediazonium zinc
 chloride.........................................
2-(N,N-Ethoxycarbonylphenylamino)-3-methoxy-4-(N-             3236                62               OP7                + 35               + 40  .........
 methyl-N- cyclohexylamino)benzenediazonium zinc
 chloride.........................................
N-Formyl-2-(nitromethylene)-1,3-perhydrothiazine..            3236               100               OP7                + 45               + 50  .........
2-(2-Hydroxyethoxy)-1-(pyrrolidin-1-yl)benzene-4-             3236               100               OP7                + 45               + 50  .........
 diazonium zinc chloride..........................
3-(2-Hydroxyethoxy)-4-(pyrrolidin-1-                          3236               100               OP7                + 40               + 45  .........
 yl)benzenediazonium zinc chloride................

7-Methoxy-5-methyl-benzothiophen-2-yl boronic                 3230            88-100    ..............  .....................  ..............          6
 acid''...........................................
2-(N,N-Methylaminoethylcarbonyl)-4-(3,4-dimethyl-             3236                96               OP7                + 45               + 50  .........
 phenylsulphonyl) benzenediazonium hydrogen
 sulphate.........................................
4-Methylbenzenesulphonylhydrazide.................            3226               100               OP7  .....................  ..............  .........
3-Methyl-4-(pyrrolidin-1-yl)benzenediazonium                  3234                95               OP6                + 45               + 50  .........
 tetrafluoroborate................................
4-Nitrosophenol...................................            3236               100               OP7                + 35               + 40  .........
Phosphorothioic acid, O-[(cyanophenyl methylene)              3227             82-91               OP8  .....................  ..............          5
 azanyl] O,O-diethyl ester........................                        (Z isomer)
Self-reactive liquid, sample......................            3223  ..................             OP2  .....................  ..............          3
Self-reactive liquid, sample, temperature control.            3233  ..................             OP2  .....................  ..............          3
Self-reactive solid, sample.......................            3224  ..................             OP2  .....................  ..............          3
Self-reactive solid, sample, temperature control..            3234  ..................             OP2  .....................  ..............          3
Sodium 2-diazo-1-naphthol-4-sulphonate............            3226               100               OP7  .....................  ..............  .........
Sodium 2-diazo-1-naphthol-5-sulphonate............            3226               100               OP7  .....................  ..............  .........
Tetramine palladium (II) nitrate..................            3234               100               OP6                + 30               + 35  .........
--------------------------------------------------------------------------------------------------------------------------------------------------------
Notes: 1. The emergency and control temperatures must be determined in accordance with Sec.   173.21(f).
2. With a compatible diluent having a boiling point of not less than 150 [deg]C.
3. Samples may only be offered for transportation under the provisions of paragraph (c)(3) of this section.
4. This entry applies to mixtures of esters of 2-diazo-1-naphthol-4-sulphonic acid and 2-diazo-1-naphthol-5-sulphonic acid.

    5. This entry applies to the technical mixture in n-butanol within
the specified concentration limits of the (Z) isomer.
    6. The technical compound with the specified concentration limits
may contain up to 12% water and up to 1% organic impurities.
* * * * *
0
18. In Sec.  173.225:
0
a. Revise table 1 to paragraph (c);
0
b. Designate the tables immediately following paragraph (d) and
immediately following paragraph (g) as table 2 to paragraph (d) and
table 4 to paragraph (g), respectively; and
0
c. Revise newly-designated table 4 to paragraph (g).

Sec.  173.225  Packaging requirements and other provisions for organic
peroxides.

* * * * *
    (c) * * *

                                                    Table 1 to Paragraph (c): Organic Peroxide Table
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                       Diluent (mass %)                                   Temperature ([deg]C)
         Technical name              ID No.      Concentration  ------------------------------   Water       Packing    -----------------------   Notes
                                                    (mass %)         A         B         I      (mass %)      method      Control   Emergency
(1)                              (2)                        (3)      (4a)      (4b)      (4c)        (5)  (6)                (7a)         (7b)       (8)
--------------------------------------------------------------------------------------------------------------------------------------------------------
Acetyl acetone peroxide........  UN3105                    <=42      >=48  ........  ........        >=8  OP7            ........  ...........         2
Acetyl acetone peroxide........  UN3107                    <=35  ........  ........  ........        >=8  OP8            ........  ...........        32
Acetyl acetone peroxide [as a    UN3106                    <=32  ........  ........  ........  .........  OP7            ........  ...........        21
 paste].
Acetyl cyclohexanesulfonyl       UN3112                    <=82  ........  ........  ........       >=12  OP4                 -10            0  ........
 peroxide.
Acetyl cyclohexanesulfonyl       UN3115                    <=32  ........      >=68  ........  .........  OP7                 -10            0  ........
 peroxide.
tert-Amyl hydroperoxide........  UN3107                    <=88       >=6  ........  ........        >=6  OP8            ........  ...........  ........
tert-Amyl peroxyacetate........  UN3105                    <=62      >=38  ........  ........  .........  OP7            ........  ...........  ........
tert-Amyl peroxybenzoate.......  UN3103                   <=100  ........  ........  ........  .........  OP5            ........  ...........  ........
tert-Amyl peroxy-2-              UN3115                   <=100  ........  ........  ........  .........  OP7                  20           25  ........
 ethylhexanoate.
tert-Amyl peroxy-2-ethylhexyl    UN3105                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 carbonate.
tert-Amyl peroxy isopropyl       UN3103                    <=77      >=23  ........  ........  .........  OP5            ........  ...........  ........
 carbonate.
tert-Amyl peroxyneodecanoate...  UN3115                    <=77  ........      >=23  ........  .........  OP7                   0           10  ........
tert-Amyl peroxyneodecanoate...  UN3119                    <=47      >=53  ........  ........  .........  OP8                   0           10  ........
tert-Amyl peroxypivalate.......  UN3113                    <=77  ........      >=23  ........  .........  OP5                  10           15  ........
tert-Amyl peroxypivalate.......  UN3119                    <=32      >=68  ........  ........  .........  OP8                  10           15  ........
tert-Amyl peroxy-3,5,5-          UN3105                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 trimethylhexanoate.
tert-Butyl cumyl peroxide......  UN3109                 >42-100  ........  ........  ........  .........  OP8            ........  ...........         9
tert-Butyl cumyl peroxide......  UN3108                    <=52  ........  ........      >=48  .........  OP8            ........  ...........         9
n-Butyl-4,4-di-(tert-            UN3103                 >52-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxy)valerate.
n-Butyl-4,4-di-(tert-            UN3108                    <=52  ........  ........      >=48  .........  OP8            ........  ...........  ........
 butylperoxy)valerate.
tert-Butyl hydroperoxide.......  UN3103                  >79-90  ........  ........  ........       >=10  OP5            ........  ...........        13
tert-Butyl hydroperoxide.......  UN3105                    <=80      >=20  ........  ........  .........  OP7            ........  ...........     4, 13
tert-Butyl hydroperoxide.......  UN3107                    <=79  ........  ........  ........        >14  OP8            ........  ...........    13, 16
tert-Butyl hydroperoxide.......  UN3109                    <=72  ........  ........  ........       >=28  OP8            ........  ...........        13

tert-Butyl hydroperoxide [and]   UN3103                <82 + >9  ........  ........  ........        >=7  OP5            ........  ...........        13
 Di-tert-butylperoxide.
tert-Butyl monoperoxymaleate...  UN3102                 >52-100  ........  ........  ........  .........  OP5            ........  ...........  ........
tert-Butyl monoperoxymaleate...  UN3103                    <=52      >=48  ........  ........  .........  OP6            ........  ...........  ........
tert-Butyl monoperoxymaleate...  UN3108                    <=52  ........  ........      >=48  .........  OP8            ........  ...........  ........
tert-Butyl monoperoxymaleate     UN3108                    <=52  ........  ........  ........  .........  OP8            ........  ...........  ........
 [as a paste].
tert-Butyl peroxyacetate.......  UN3101                  >52-77      >=23  ........  ........  .........  OP5            ........  ...........  ........
tert-Butyl peroxyacetate.......  UN3103                  >32-52      >=48  ........  ........  .........  OP6            ........  ...........  ........
tert-Butyl peroxyacetate.......  UN3109                    <=32  ........      >=68  ........  .........  OP8            ........  ...........  ........
tert-Butyl peroxybenzoate......  UN3103                 >77-100  ........  ........  ........  .........  OP5            ........  ...........  ........
tert-Butyl peroxybenzoate......  UN3105                  >52-77      >=23  ........  ........  .........  OP7            ........  ...........         1
tert-Butyl peroxybenzoate......  UN3106                    <=52  ........  ........      >=48  .........  OP7            ........  ...........  ........
tert-Butyl peroxybenzoate......  UN3109                    <=32      >=68  ........  ........  .........  OP8            ........  ...........  ........
tert-Butyl peroxybutyl fumarate  UN3105                    <=52      >=48  ........  ........  .........  OP7            ........  ...........  ........
tert-Butyl peroxycrotonate.....  UN3105                    <=77      >=23  ........  ........  .........  OP7            ........  ...........  ........
tert-Butyl peroxydiethylacetate  UN3113                   <=100  ........  ........  ........  .........  OP5                  20           25  ........
tert-Butyl peroxy-2-             UN3113                 >52-100  ........  ........  ........  .........  OP6                  20           25  ........
 ethylhexanoate.
tert-Butyl peroxy-2-             UN3117                  >32-52  ........      >=48  ........  .........  OP8                  30           35  ........
 ethylhexanoate.
tert-Butyl peroxy-2-             UN3118                    <=52  ........  ........      >=48  .........  OP8                  20           25  ........
 ethylhexanoate.
tert-Butyl peroxy-2-             UN3119                    <=32  ........      >=68  ........  .........  OP8                  40           45  ........
 ethylhexanoate.
tert-Butyl peroxy-2-             UN3106             <=12 + <=14      >=14  ........      >=60  .........  OP7            ........  ...........  ........
 ethylhexanoate [and] 2,2-di-
 (tert-Butylperoxy)butane.
tert-Butyl peroxy-2-             UN3115             <=31 + <=36  ........      >=33  ........  .........  OP7                  35           40  ........
 ethylhexanoate [and] 2,2-di-
 (tert-Butylperoxy)butane.
tert-Butyl peroxy-2-             UN3105                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 ethylhexylcarbonate.
tert-Butyl peroxyisobutyrate...  UN3111                  >52-77  ........      >=23  ........  .........  OP5                  15           20  ........
tert-Butyl peroxyisobutyrate...  UN3115                    <=52  ........      >=48  ........  .........  OP7                  15           20  ........
tert-Butylperoxy                 UN3103                    <=77      >=23  ........  ........  .........  OP5            ........  ...........  ........
 isopropylcarbonate.
tert-Butylperoxy                 UN3105                    <=62  ........     >= 38  ........  .........  OP7            ........  ...........  ........
 isopropylcarbonate.
1-(2-tert-Butylperoxy            UN3105                    <=77      >=23  ........  ........  .........  OP7            ........  ...........  ........
 isopropyl)-3-
 isopropenylbenzene.
1-(2-tert-Butylperoxy            UN3108                    <=42  ........  ........      >=58  .........  OP8            ........  ...........  ........
 isopropyl)-3-
 isopropenylbenzene.
tert-Butyl peroxy-2-             UN3103                   <=100  ........  ........  ........  .........  OP5            ........  ...........  ........
 methylbenzoate.
tert-Butyl peroxyneodecanoate..  UN3115                 >77-100  ........  ........  ........  .........  OP7                  -5            5  ........
tert-Butyl peroxyneodecanoate..  UN3115                    <=77  ........      >=23  ........  .........  OP7                   0           10  ........
tert-Butyl peroxyneodecanoate    UN3119                    <=52  ........  ........  ........  .........  OP8                   0           10  ........
 [as a stable dispersion in
 water].
tert-Butyl peroxyneodecanoate    UN3118                    <=42  ........  ........  ........  .........  OP8                   0           10  ........
 [as a stable dispersion in
 water (frozen)].
tert-Butyl peroxyneodecanoate..  UN3119                    <=32      >=68  ........  ........  .........  OP8                   0           10  ........
tert-Butyl peroxyneoheptanoate.  UN3115                    <=77      >=23  ........  ........  .........  OP7                   0           10  ........
tert-Butyl peroxyneoheptanoate   UN3117                    <=42  ........  ........  ........  .........  OP8                   0           10  ........
 [as a stable dispersion in
 water].
tert-Butyl peroxypivalate......  UN3113                  >67-77      >=23  ........  ........  .........  OP5                   0           10  ........
tert-Butyl peroxypivalate......  UN3115                  >27-67  ........      >=33  ........  .........  OP7                   0           10  ........
tert-Butyl peroxypivalate......  UN3119                    <=27  ........      >=73  ........  .........  OP8                  30           35  ........
tert-Butylperoxy                 UN3106                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 stearylcarbonate.
tert-Butyl peroxy-3,5,5-         UN3105                 >37-100  ........  ........  ........  .........  OP7            ........  ...........  ........
 trimethylhexanoate.
tert-Butyl peroxy-3,5,5-         UN3106                    <=42  ........  ........      >=58  .........  OP7            ........  ...........  ........
 trimethlyhexanoate.
tert-Butyl peroxy-3,5,5-         UN3109                    <=37  ........      >=63  ........  .........  OP8            ........  ...........  ........
 trimethylhexanoate.
3-Chloroperoxybenzoic acid.....  UN3102                  >57-86  ........  ........      >=14  .........  OP1            ........  ...........  ........
3-Chloroperoxybenzoic acid.....  UN3106                    <=57  ........  ........       >=3       >=40  OP7            ........  ...........  ........
3-Chloroperoxybenzoic acid.....  UN3106                    <=77  ........  ........       >=6       >=17  OP7            ........  ...........  ........
Cumyl hydroperoxide............  UN3107                  >90-98      <=10  ........  ........  .........  OP8            ........  ...........        13
Cumyl hydroperoxide............  UN3109                    <=90      >=10  ........  ........  .........  OP8            ........  ...........    13, 15
Cumyl peroxyneodecanoate.......  UN3115                    <=87      >=13  ........  ........  .........  OP7                 -10            0  ........
Cumyl peroxyneodecanoate.......  UN3115                    <=77  ........      >=23  ........  .........  OP7                 -10            0  ........
Cumyl peroxyneodecanoate [as a   UN3119                    <=52  ........  ........  ........  .........  OP8                 -10            0  ........
 stable dispersion in water].
Cumyl peroxyneoheptanoate......  UN3115                    <=77      >=23  ........  ........  .........  OP7                 -10            0  ........
Cumyl peroxypivalate...........  UN3115                    <=77  ........      >=23  ........  .........  OP7                  -5            5  ........
Cyclohexanone peroxide(s)......  UN3104                    <=91  ........  ........  ........        >=9  OP6            ........  ...........        13
Cyclohexanone peroxide(s)......  UN3105                    <=72      >=28  ........  ........  .........  OP7            ........  ...........         5
Cyclohexanone peroxide(s) [as a  UN3106                    <=72  ........  ........  ........  .........  OP7            ........  ...........     5, 21
 paste].
Cyclohexanone peroxide(s)......  Exempt                    <=32  ........       >68  ........  .........  Exempt         ........  ...........        29
Diacetone alcohol peroxides....  UN3115                    <=57  ........      >=26  ........        >=8  OP7                  40           45         5
Diacetyl peroxide..............  UN3115                    <=27  ........      >=73  ........  .........  OP7                  20           25      8,13
Di-tert-amyl peroxide..........  UN3107                   <=100  ........  ........  ........  .........  OP8            ........  ...........  ........
([3R- (3R, 5aS, 6S, 8aS, 9R,     UN3106                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 10R, 12S, 12aR**)]-Decahydro-
 10-methoxy-3, 6, 9-trimethyl-
 3, 12-epoxy-12H-pyrano [4, 3-
 j]-1, 2-benzodioxepin).
2,2-Di-(tert-amylperoxy)-butane  UN3105                    <=57      >=43  ........  ........  .........  OP7            ........  ...........  ........

1,1-Di-(tert-                    UN3103                    <=82      >=18  ........  ........  .........  OP6            ........  ...........  ........
 amylperoxy)cyclohexane.
Dibenzoyl peroxide.............  UN3102                 >52-100  ........  ........      <=48  .........  OP2            ........  ...........         3
Dibenzoyl peroxide.............  UN3102                  >77-94  ........  ........  ........        >=6  OP4            ........  ...........         3
Dibenzoyl peroxide.............  UN3104                    <=77  ........  ........  ........       >=23  OP6            ........  ...........  ........
Dibenzoyl peroxide.............  UN3106                    <=62  ........  ........      >=28       >=10  OP7            ........  ...........  ........
Dibenzoyl peroxide [as a paste]  UN3106                  >52-62  ........  ........  ........  .........  OP7            ........  ...........        21
Dibenzoyl peroxide.............  UN3106                  >35-52  ........  ........      >=48  .........  OP7            ........  ...........  ........
Dibenzoyl peroxide.............  UN3107                  >36-42      >=18  ........  ........       <=40  OP8            ........  ...........  ........
Dibenzoyl peroxide [as a paste]  UN3108                  <=56.5  ........  ........  ........       >=15  OP8            ........  ...........  ........
Dibenzoyl peroxide [as a paste]  UN3108                    <=52  ........  ........  ........  .........  OP8            ........  ...........        21
Dibenzoyl peroxide [as a stable  UN3109                    <=42  ........  ........  ........  .........  OP8            ........  ...........  ........
 dispersion in water].
Dibenzoyl peroxide.............  Exempt                    <=35  ........  ........      >=65  .........  Exempt         ........  ...........        29
Di-(4-tert-                      UN3114                   <=100  ........  ........  ........  .........  OP6                  30           35  ........
 butylcyclohexyl)peroxydicarbon
 ate.
Di-(4-tert-                      UN3119                    <=42  ........  ........  ........  .........  OP8                  30           35  ........
 butylcyclohexyl)peroxydicarbon
 ate [as a stable dispersion in
 water].
Di-(4-tert-                      UN3118                    <=42  ........  ........  ........  .........  OP8                  35           40  ........
 butylcyclohexyl)peroxydicarbon
 ate [as a paste].
Di-tert-butyl peroxide.........  UN3107                 >52-100  ........  ........  ........  .........  OP8            ........  ...........  ........
Di-tert-butyl peroxide.........  UN3109                    <=52  ........      >=48  ........  .........  OP8            ........  ...........        24
Di-tert-butyl peroxyazelate....  UN3105                    <=52      >=48  ........  ........  .........  OP7            ........  ...........  ........
2,2-Di-(tert-butylperoxy)butane  UN3103                    <=52      >=48  ........  ........  .........  OP6            ........  ...........  ........
1,6-Di-(tert-                    UN3103                    <=72      >=28  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxycarbonyloxy)hexane.
1,1-Di-(tert-                    UN3101                 >80-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3103                  >52-80      >=20  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxy)cyclohexane.
1,1-Di-(tert-butylperoxy)-       UN3103                    <=72  ........      >=28  ........  .........  OP5            ........  ...........        30
 cyclohexane.
1,1-Di-(tert-                    UN3105                  >42-52      >=48  ........  ........  .........  OP7            ........  ...........  ........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3106                    <=42      >=13  ........      >=45  .........  OP7            ........  ...........  ........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3107                    <=27      >=25  ........  ........  .........  OP8            ........  ...........        22
 butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3109                    <=42      >=58  ........  ........  .........  OP8            ........  ...........  ........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3109                    <=37      >=63  ........  ........  .........  OP8            ........  ...........  ........
 Butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3109                    <=25      >=25      >=50  ........  .........  OP8            ........  ...........  ........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3109                    <=13      >=13      >=74  ........  .........  OP8            ........  ...........  ........
 butylperoxy)cyclohexane.
1,1-Di-(tert-                    UN3105               <=43+<=16      >=41  ........  ........  .........  OP7            ........  ...........  ........
 butylperoxy)cyclohexane + tert-
 Butyl peroxy-2-ethylhexanoate.
Di-n-butyl peroxydicarbonate...  UN3115                  >27-52  ........      >=48  ........  .........  OP7                 -15           -5  ........
Di-n-butyl peroxydicarbonate...  UN3117                    <=27  ........      >=73  ........  .........  OP8                 -10            0  ........
Di-n-butyl peroxydicarbonate     UN3118                    <=42  ........  ........  ........  .........  OP8                 -15           -5  ........
 [as a stable dispersion in
 water (frozen)].
Di-sec-butyl peroxydicarbonate.  UN3113                 >52-100  ........  ........  ........  .........  OP4                 -20          -10         6
Di-sec-butyl peroxydicarbonate.  UN3115                    <=52  ........      >=48  ........  .........  OP7                 -15           -5  ........
Di-(tert-butylperoxyisopropyl)   UN3106                 >42-100  ........  ........      <=57  .........  OP7            ........  ...........      1, 9
 benzene(s).
Di-(tert-butylperoxyisopropyl)   Exempt                    <=42  ........  ........      >=58  .........  Exempt         ........  ...........  ........
 benzene(s).
Di-(tert-butylperoxy)phthalate.  UN3105                  >42-52      >=48  ........  ........  .........  OP7            ........  ...........  ........
Di-(tert-butylperoxy)phthalate   UN3106                    <=52  ........  ........  ........  .........  OP7            ........  ...........        21
 [as a paste].
Di-(tert-butylperoxy)phthalate.  UN3107                    <=42      >=58  ........  ........  .........  OP8            ........  ...........  ........
2,2-Di-(tert-                    UN3105                    <=52      >=48  ........  ........  .........  OP7            ........  ...........  ........
 butylperoxy)propane.
2,2-Di-(tert-                    UN3106                    <=42      >=13  ........      >=45  .........  OP7            ........  ...........  ........
 butylperoxy)propane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3101                 >90-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3103                  >57-90      >=10  ........  ........  .........  OP5            ........  ...........  ........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3103                    <=77  ........      >=23  ........  .........  OP5            ........  ...........  ........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3103                    <=90  ........      >=10  ........  .........  OP5            ........  ...........        30
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3110                    <=57  ........  ........      >=43  .........  OP8            ........  ...........  ........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3107                    <=57      >=43  ........  ........  .........  OP8            ........  ...........  ........
 trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3107                    <=32      >=26      >=42  ........  .........  OP8            ........  ...........  ........
 trimethylcyclohexane.
Dicetyl peroxydicarbonate......  UN3120                   <=100  ........  ........  ........  .........  OP8                  30           35  ........
Dicetyl peroxydicarbonate [as a  UN3119                    <=42  ........  ........  ........  .........  OP8                  30           35  ........
 stable dispersion in water].
Di-4-chlorobenzoyl peroxide....  UN3102                    <=77  ........  ........  ........       >=23  OP5            ........  ...........  ........
Di-4-chlorobenzoyl peroxide....  Exempt                    <=32  ........  ........      >=68  .........  Exempt         ........  ...........        29
Di-2,4-dichlorobenzoyl peroxide  UN3118                    <=52  ........  ........  ........  .........  OP8                  20           25  ........
 [as a paste].
Di-4-chlorobenzoyl peroxide [as  UN3106                    <=52  ........  ........  ........  .........  OP7            ........  ...........        21
 a paste].
Dicumyl peroxide...............  UN3110                 >52-100  ........  ........      <=48  .........  OP8            ........  ...........         9

Dicumyl peroxide...............  Exempt                    <=52  ........  ........      >=48  .........  Exempt         ........  ...........        29
Dicyclohexyl peroxydicarbonate.  UN3112                 >91-100  ........  ........  ........  .........  OP3                  10           15  ........
Dicyclohexyl peroxydicarbonate.  UN3114                    <=91  ........  ........  ........        >=9  OP5                  10           15  ........
Dicyclohexyl peroxydicarbonate   UN3119                    <=42  ........  ........  ........  .........  OP8                  15           20  ........
 [as a stable dispersion in
 water].
Didecanoyl peroxide............  UN3114                   <=100  ........  ........  ........  .........  OP6                  30           35  ........
2,2-Di-(4,4-di(tert-             UN3106                    <=42  ........  ........      >=58  .........  OP7            ........  ...........  ........
 butylperoxy)cyclohexyl)propane.
2,2-Di-(4,4-di(tert-             UN3107                    <=22  ........      >=78  ........  .........  OP8            ........  ...........  ........
 butylperoxy)cyclohexyl)propane.
Di-2,4-dichlorobenzoyl peroxide  UN3102                    <=77  ........  ........  ........       >=23  OP5            ........  ...........  ........
Di-2,4-dichlorobenzoyl peroxide  UN3106                    <=52  ........  ........  ........  .........  OP7            ........  ...........  ........
 [as a paste with silicone oil].
Di-(2-ethoxyethyl)               UN3115                    <=52  ........      >=48  ........  .........  OP7                 -10            0  ........
 peroxydicarbonate.
Di-(2-ethylhexyl)                UN3113                 >77-100  ........  ........  ........  .........  OP5                 -20          -10  ........
 peroxydicarbonate.
Di-(2-ethylhexyl)                UN3115                    <=77  ........      >=23  ........  .........  OP7                 -15           -5  ........
 peroxydicarbonate.
Di-(2-ethylhexyl)                UN3119                    <=62  ........  ........  ........  .........  OP8                 -15           -5  ........
 peroxydicarbonate [as a stable
 dispersion in water].
Di-(2-ethylhexyl)                UN3119                    <=52  ........  ........  ........  .........  OP8                 -15           -5  ........
 peroxydicarbonate [as a stable
 dispersion in water].
Di-(2-ethylhexyl)                UN3120                    <=52  ........  ........  ........  .........  OP8                 -15           -5  ........
 peroxydicarbonate [as a stable
 dispersion in water (frozen)].
2,2-Dihydroperoxypropane.......  UN3102                    <=27  ........  ........      >=73  .........  OP5            ........  ...........  ........
Di-(1-                           UN3106                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 hydroxycyclohexyl)peroxide.
Diisobutyryl peroxide..........  UN3111                  >32-52  ........      >=48  ........  .........  OP5                 -20          -10  ........
Diisobutyryl peroxide [as a      UN3119                    <=42  ........  ........  ........  .........  OP8                 -20          -10  ........
 stable dispersion in water].
Diisobutyryl peroxide..........  UN3115                    <=32  ........      >=68  ........  .........  OP7                 -20          -10  ........
Diisopropylbenzene               UN3106                    <=82       >=5  ........  ........        >=5  OP7            ........  ...........        17
 dihydroperoxide.
Diisopropyl peroxydicarbonate..  UN3112                 >52-100  ........  ........  ........  .........  OP2                 -15           -5  ........
Diisopropyl peroxydicarbonate..  UN3115                    <=52  ........      >=48  ........  .........  OP7                 -20          -10  ........
Diisopropyl peroxydicarbonate..  UN3115                    <=32      >=68  ........  ........  .........  OP7                 -15           -5  ........
Dilauroyl peroxide.............  UN3106                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
Dilauroyl peroxide [as a stable  UN3109                    <=42  ........  ........  ........  .........  OP8            ........  ...........  ........
 dispersion in water].
Di-(3-methoxybutyl)              UN3115                    <=52  ........      >=48  ........  .........  OP7                  -5            5  ........
 peroxydicarbonate.
Di-(2-methylbenzoyl)peroxide...  UN3112                    <=87  ........  ........  ........       >=13  OP5                  30           35  ........
Di-(4-methylbenzoyl)peroxide     UN3106                    <=52  ........  ........  ........  .........  OP7            ........  ...........  ........
 [as a paste with silicone oil].
Di-(3-methylbenzoyl) peroxide +  UN3115           <=20 + <=18 +  ........      >=58  ........  .........  OP7                  35           40  ........
 Benzoyl (3-methylbenzoyl)                                  <=4
 peroxide + Dibenzoyl peroxide.
2,5-Dimethyl-2,5-di-             UN3102                 >82-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 (benzoylperoxy)hexane.
2,5-Dimethyl-2,5-di-             UN3106                    <=82  ........  ........      >=18  .........  OP7            ........  ...........  ........
 (benzoylperoxy)hexane.
2,5-Dimethyl-2,5-di-             UN3104                    <=82  ........  ........  ........       >=18  OP5            ........  ...........  ........
 (benzoylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-       UN3103                 >90-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-       UN3105                  >52-90      >=10  ........  ........  .........  OP7            ........  ...........  ........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-       UN3108                    <=77  ........  ........      >=23  .........  OP8            ........  ...........  ........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-       UN3109                    <=52      >=48  ........  ........  .........  OP8            ........  ...........  ........
 butylperoxy)hexane.
2,5-Dimethyl-2,5-di-(tert-       UN3108                    <=47  ........  ........  ........  .........  OP8            ........  ...........  ........
 butylperoxy)hexane [as a
 paste].
2,5-Dimethyl-2,5-di-(tert-       UN3101                 >86-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxy)hexyne-3.
2,5-Dimethyl-2,5-di-(tert-       UN3103                  >52-86      >=14  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxy)hexyne-3.
2,5-Dimethyl-2,5-di-(tert-       UN3106                    <=52  ........  ........      >=48  .........  OP7            ........  ...........  ........
 butylperoxy)hexyne-3.
2,5-Dimethyl-2,5-di-(2-          UN3113                   <=100  ........  ........  ........  .........  OP5                  20           25  ........
 ethylhexanoylperoxy)hexane.
2,5-Dimethyl-2,5-                UN3104                    <=82  ........  ........  ........       >=18  OP6            ........  ...........  ........
 dihydroperoxyhexane.
2,5-Dimethyl-2,5-di-(3,5,5-      UN3105                    <=77      >=23  ........  ........  .........  OP7            ........  ...........  ........
 trimethylhexanoylperoxy)hexane.
1,1-Dimethyl-3-                  UN3117                    <=52      >=48  ........  ........  .........  OP8                   0           10  ........
 hydroxybutylperoxyneoheptanoat
 e.
Dimyristyl peroxydicarbonate...  UN3116                   <=100  ........  ........  ........  .........  OP7                  20           25  ........
Dimyristyl peroxydicarbonate     UN3119                    <=42  ........  ........  ........  .........  OP8                  20           25  ........
 [as a stable dispersion in
 water].
Di-(2-                           UN3115                    <=52      >=48  ........  ........  .........  OP7                 -10            0  ........
 neodecanoylperoxyisopropyl)ben
 zene.

Di-(2-neodecanoyl-               UN3119                    <=42  ........  ........  ........  .........  OP8                 -15           -5  ........
 peroxyisopropyl) benzene, as
 stable dispersion in water.
Di-n-nonanoyl peroxide.........  UN3116                   <=100  ........  ........  ........  .........  OP7                   0           10  ........
Di-n-octanoyl peroxide.........  UN3114                   <=100  ........  ........  ........  .........  OP5                  10           15  ........
Di-(2-                           UN3102                 >85-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 phenoxyethyl)peroxydicarbonate.
Di-(2-                           UN3106                    <=85  ........  ........  ........       >=15  OP7            ........  ...........  ........
 phenoxyethyl)peroxydicarbonate.
Dipropionyl peroxide...........  UN3117                    <=27  ........      >=73  ........  .........  OP8                  15           20  ........
Di-n-propyl peroxydicarbonate..  UN3113                   <=100  ........  ........  ........  .........  OP3                 -25          -15  ........
Di-n-propyl peroxydicarbonate..  UN3113                    <=77  ........      >=23  ........  .........  OP5                 -20          -10  ........
Disuccinic acid peroxide.......  UN3102                 >72-100  ........  ........  ........  .........  OP4            ........  ...........        18
Disuccinic acid peroxide.......  UN3116                    <=72  ........  ........  ........       >=28  OP7                  10           15  ........
Di-(3,5,5-trimethylhexanoyl)     UN3115                  >52-82      >=18  ........  ........  .........  OP7                   0           10  ........
 peroxide.
Di-(3,5,5-                       UN3119                    <=52  ........  ........  ........  .........  OP8                  10           15  ........
 trimethylhexanoyl)peroxide [as
 a stable dispersion in water].
Di-(3,5,5-trimethylhexanoyl)     UN3119                  >38-52      >=48  ........  ........  .........  OP8                  10           15  ........
 peroxide.
Di-(3,5,5-                       UN3119                    <=38      >=62  ........  ........  .........  OP8                  20           25  ........
 trimethylhexanoyl)peroxide.
Ethyl 3,3-di-(tert-              UN3105                    <=67      >=33  ........  ........  .........  OP7            ........  ...........  ........
 amylperoxy)butyrate.
Ethyl 3,3-di-(tert-              UN3103                 >77-100  ........  ........  ........  .........  OP5            ........  ...........  ........
 butylperoxy)butyrate.
Ethyl 3,3-di-(tert-              UN3105                    <=77      >=23  ........  ........  .........  OP7            ........  ...........  ........
 butylperoxy)butyrate.
Ethyl 3,3-di-(tert-              UN3106                    <=52  ........  ........      >=48  .........  OP7            ........  ...........  ........
 butylperoxy)butyrate.
1-(2-ethylhexanoylperoxy)-1,3-   UN3115                    <=52      >=45      >=10  ........  .........  OP7                 -20          -10  ........
 Dimethylbutyl peroxypivalate.
tert-Hexyl peroxyneodecanoate..  UN3115                    <=71      >=29  ........  ........  .........  OP7                   0           10  ........
tert-Hexyl peroxypivalate......  UN3115                    <=72  ........      >=28  ........  .........  OP7                  10           15  ........
tert-Hexyl peroxypivalate......  UN3117               <=52 as a  ........  ........  ........  .........  OP8                 +15          +20  ........
                                                         stable
                                                  dispersion in
                                                          water
3-Hydroxy-1,1-dimethylbutyl      UN3115                    <=77      >=23  ........  ........  .........  OP7                  -5            5  ........
 peroxyneodecanoate.
3-Hydroxy-1,1-dimethylbutyl      UN3119                    <=52  ........  ........  ........  .........  OP8                  -5            5  ........
 peroxyneodecanoate [as a
 stable dispersion in water].
3-Hydroxy-1,1-dimethylbutyl      UN3117                    <=52      >=48  ........  ........  .........  OP8                  -5            5  ........
 peroxyneodecanoate.
Isopropyl sec-butyl              UN3111           <=52 + <=28 +  ........  ........  ........  .........  OP5                 -20          -10  ........
 peroxydicarbonat + Di-sec-                                <=22
 butyl peroxydicarbonate + Di-
 isopropyl peroxydicarbonate.
Isopropyl sec-butyl              UN3115         <=32 + <=15 -18      >=38  ........  ........  .........  OP7                 -20          -10  ........
 peroxydicarbonate + Di-sec-                         + <=12 -15
 butyl peroxydicarbonate + Di-
 isopropyl peroxydicarbonate.
Isopropylcumyl hydroperoxide...  UN3109                    <=72      >=28  ........  ........  .........  OP8            ........  ...........        13
p-Menthyl hydroperoxide........  UN3105                 >72-100  ........  ........  ........  .........  OP7            ........  ...........        13
p-Menthyl hydroperoxide........  UN3109                    <=72      >=28  ........  ........  .........  OP8            ........  ...........  ........
Methylcyclohexanone peroxide(s)  UN3115                    <=67  ........      >=33  ........  .........  OP7                  35           40  ........
Methyl ethyl ketone peroxide(s)  UN3101                    <=52      >=48  ........  ........  .........  OP5            ........  ...........     5, 13
Methyl ethyl ketone peroxide(s)  UN3105                    <=45      >=55  ........  ........  .........  OP7            ........  ...........         5
Methyl ethyl ketone peroxide(s)  UN3107                    <=40      >=60  ........  ........  .........  OP8            ........  ...........         7
Methyl isobutyl ketone           UN3105                    <=62      >=19  ........  ........  .........  OP7            ........  ...........     5, 23
 peroxide(s).
Methyl isopropyl ketone          UN3109         (See remark 31)      >=70  ........  ........  .........  OP8            ........  ...........        31
 peroxide(s).
Organic peroxide, liquid,        UN3103         ...............  ........  ........  ........  .........  OP2            ........  ...........        12
 sample.
Organic peroxide, liquid,        UN3113         ...............  ........  ........  ........  .........  OP2            ........  ...........        12
 sample, temperature controlled.
Organic peroxide, solid, sample  UN3104         ...............  ........  ........  ........  .........  OP2            ........  ...........        12
Organic peroxide, solid,         UN3114         ...............  ........  ........  ........  .........  OP2            ........  ...........        12
 sample, temperature controlled.
3,3,5,7,7-Pentamethyl-1,2,4-     UN3107                   <=100  ........  ........  ........  .........  OP8            ........  ...........  ........
 Trioxepane.
Peroxyacetic acid, type D,       UN3105                    <=43  ........  ........  ........  .........  OP7            ........  ...........    13, 20
 stabilized.
Peroxyacetic acid, type E,       UN3107                    <=43  ........  ........  ........  .........  OP8            ........  ...........    13, 20
 stabilized.
Peroxyacetic acid, type F,       UN3109                    <=43  ........  ........  ........  .........  OP8            ........  ...........   13, 20,
 stabilized.                                                                                28
Peroxyacetic acid or peracetic   UN3107                    <=36  ........  ........  ........       >=15  OP8            ........  ...........   13, 20,
 acid [with not more than 7%                                                                                28
 hydrogen peroxide].
Peroxyacetic acid or peracetic   Exempt                     <=6  ........  ........  ........       >=60  Exempt         ........  ...........        28
 acid [with not more than 20%
 hydrogen peroxide].
Peroxyacetic acid or peracetic   UN3109                    <=17  ........  ........  ........  .........  OP8            ........  ...........   13, 20,
 acid [with not more than 26%                                                                                28
 hydrogen peroxide].
Peroxylauric acid..............  UN3118                   <=100  ........  ........  ........  .........  OP8                  35           40  ........
1-Phenylethyl hydroperoxide....  UN3109                    <=38  ........      >=62  ........  .........  OP8            ........  ...........  ........
Pinanyl hydroperoxide..........  UN3105                 >56-100  ........  ........  ........  .........  OP7            ........  ...........        13
Pinanyl hydroperoxide..........  UN3109                    <=56      >=44  ........  ........  .........  OP8            ........  ...........  ........
Polyether poly-tert-             UN3107                    <=52  ........      >=48  ........  .........  OP8            ........  ...........  ........
 butylperoxycarbonate.
Tetrahydronaphthyl               UN3106                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 hydroperoxide.
1,1,3,3-Tetramethylbutyl         UN3105                   <=100  ........  ........  ........  .........  OP7            ........  ...........  ........
 hydroperoxide.

1,1,3,3-Tetramethylbutyl peroxy- UN3115                   <=100  ........  ........  ........  .........  OP7                  15           20  ........
 2-ethylhexanoate.
1,1,3,3-Tetramethylbutyl         UN3115                    <=72  ........      >=28  ........  .........  OP7                  -5            5  ........
 peroxyneodecanoate.
1,1,3,3-Tetramethylbutyl         UN3119                    <=52  ........  ........  ........  .........  OP8                  -5            5  ........
 peroxyneodecanoate [as a
 stable dispersion in water].
1,1,3,3-tetramethylbutyl         UN3115                    <=77      >=23  ........  ........  .........  OP7                   0           10  ........
 peroxypivalate.
3,6,9-Triethyl-3,6,9-trimethyl-  UN3110                    <=17      >=18  ........      >=65  .........  OP8            ........  ...........  ........
 1,4,7-triperoxonane.
3,6,9-Triethyl-3,6,9-trimethyl-  UN3105                    <=42      >=58  ........  ........  .........  OP7            ........  ...........        26
 1,4,7-triperoxonane.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Notes:
1. For domestic shipments, OP8 is authorized.
2. Available oxygen must be <4.7%.
3. For concentrations <80% OP5 is allowed. For concentrations of at least 80% but <85%, OP4 is allowed. For concentrations of at least 85%, maximum
  package size is OP2.
4. The diluent may be replaced by di-tert-butyl peroxide.
5. Available oxygen must be <=9% with or without water.
6. For domestic shipments, OP5 is authorized.
7. Available oxygen must be <=8.2% with or without water.
8. Only non-metallic packagings are authorized.
9. For domestic shipments this material may be transported under the provisions of paragraph (h)(3)(xii) of this section.
10. [Reserved]
11. [Reserved]
12. Samples may only be offered for transportation under the provisions of paragraph (b)(2) of this section.
13. ``Corrosive'' subsidiary risk label is required.
14. [Reserved]
15. No ``Corrosive'' subsidiary risk label is required for concentrations below 80%.
16. With <6% di-tert-butyl peroxide.
17. With <=8% 1-isopropylhydroperoxy-4-isopropylhydroxybenzene.
18. Addition of water to this organic peroxide will decrease its thermal stability.
19. [Reserved]
20. Mixtures with hydrogen peroxide, water, and acid(s).
21. With diluent type A, with or without water.
22. With >=36%% diluent type A by mass, and in addition ethylbenzene.
23. With >=19% diluent type A by mass, and in addition methyl isobutyl ketone.
24. Diluent type B with boiling point >100 [deg]C.
25. No ``Corrosive'' subsidiary risk label is required for concentrations below 56%.
26. Available oxygen must be <=7.6%
27. Formulations derived from distillation of peroxyacetic acid originating from peroxyacetic acid in a concentration of not more than 41% with water,
  total active oxygen less than or equal to 9.5% (peroxyacetic acid plus hydrogen peroxide).
28. For the purposes of this section, the names ``Peroxyacetic acid'' and ``Peracetic acid'' are synonymous.
29. Not subject to the requirements of this subchapter for Division 5.2.
30. Diluent type B with boiling point >130 [deg]C (266 [deg]F).
31. Available oxygen <=6.7%.
32. Active oxygen concentration <=4.15%.

* * * * *
    (g) * * *

                                                                 Table 4 to Paragraph (g): Organic Peroxide Portable Tank Table
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                Minimum shell
                                                              Minimum test      thickness  (mm-       Bottom opening        Pressure-relief                               Control     Emergency
               UN No.                  Hazardous  material   pressure (bar)    reference steel)     requirements  See .   requirements  See .      Filling limits       temperature  temperature
                                                                                See . . .                . .                   . .
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
3109...............................  ORGANIC PEROXIDE,.....  ..............  ....................  ....................  ....................  ......................  ............  ...........
                                     TYPE F, LIQUID........

                                                                                * * * * * * *
                                     tert-Butyl                           4  Sec.   178.274(d)(2)  Sec.   178.275(d)(3)  Sec.   178.275(g)(1)  Not more than 90% at    ............  ...........
                                      hydroperoxide, not                                                                                59 [deg]F (15 [deg]C).
                                      more than 56% with
                                      diluent type B \2\.

                                                                                * * * * * * *
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Notes
1. ``Corrosive'' subsidiary risk placard is required.
2. Diluent type B is tert-Butyl alcohol.

0
19. In Sec.  173.232, add paragraph (h) to read as follows:

Sec.  173.232  Articles containing hazardous materials, n.o.s.

* * * * *
    (h) For transport by aircraft, the following additional
requirements apply:
    (i) Articles transported under UN3548, which do not have an
existing proper shipping name, and which contain only environmentally
hazardous substances where the quantity of the environmentally
hazardous substance in the article exceeds 5 L or 5 kg, must be
prepared for transport in accordance with this section for transport by
air. In addition to the environmentally hazardous substances, the
article may also contain lithium cells or batteries that comply with
Sec.  173.185(c)(4), as applicable.
    (ii) Articles transported under UN3538, which do not have an
existing proper shipping name, and which contain only gases of Division
2.2 without a subsidiary hazard, but excluding refrigerated liquefied
gases and gases forbidden for transport on passenger aircraft, where
the quantity of the Division 2.2 gas exceeds the quantity limits for UN
3363, as prescribed in Sec.  173.222 must be prepared for transport in
accordance with this section. Articles transported under this provision
are limited to a maximum net quantity of gas of 75 kg by passenger
aircraft and 150 kg by cargo aircraft. In addition to the Division 2.2
gas, the article may also contain lithium cells or batteries that
comply with Sec.  173.185(c)(4), as applicable.
0
20. In Sec.  173.301b, revise paragraphs (c)(1), (c)(2)(ii) through
(iv), (d)(1), and (f) to read as follows:

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

* * * * *
    (c) * * *
    (1) When the use of a valve is prescribed, the valve must conform
to the requirements in ISO 10297:2014(E) and ISO 10297:2014/Amd 1:2017
(IBR, see Sec.  171.7 of this subchapter). Quick release cylinder
valves for specification and type testing must conform to the
requirements in ISO 17871:2020 or, until December 31, 2026, ISO
17871:2015(E) (IBR, see Sec.  171.7 of this subchapter). Until December
31, 2026, a quick release valve conforming to the requirements in ISO
17871:2015(E) (IBR, see Sec.  171.7 of this subchapter) continues to be
authorized for use.
    (2) * * *
    (ii) By equipping the UN pressure receptacle with a valve cap
conforming to the requirements in ISO 11117:2019 (IBR, see Sec.  171.7
of this subchapter). Until December 31, 2026, the UN pressure
receptacle may continue to be equipped with a valve cap conforming to
the requirements in ISO 11117:2008(E) and Technical Corrigendum 1 (IBR,
see Sec.  171.7 of this subchapter);
    (iii) By protecting the valves with shrouds or guards conforming to
the requirements in ISO 11117:2019 (IBR; see Sec.  171.7 of this
subchapter). Until December 31, 2026, the valves may continue to be
protected by shrouds or guards conforming to the requirements in ISO
11117:2008 and Technical Corrigendum 1 (IBR; see Sec.  171.7 of this
subchapter). For metal hydride storage systems, by protecting the
valves in accordance with the requirements in ISO 16111:2018(E) or,
until December 31, 2026, in accordance with ISO 16111:2008(E) (IBR; see
Sec.  171.7 of this subchapter).
    (iv) By using valves designed and constructed with sufficient
inherent strength to withstand damage, in accordance with Annex B of
ISO 10297:2014(E)/Amd. 1:2017 (IBR; see Sec.  171.7 of this
subchapter);
* * * * *
    (d) Non-refillable UN pressure receptacles. (1) When the use of a
valve is prescribed, the valve must conform to the requirements in ISO
11118:2015(E) and ISO 11118:2015/Amd 1:2019 until further notice.
Conformance with ISO 11118:2015 without the supplemental amendment is
authorized until December 31, 2026 (IBR, see Sec.  171.7 of this
subchapter).
* * * * *
    (f) Hydrogen bearing gases. A steel UN pressure receptacle or a UN
composite pressure receptacle with a steel liner bearing an ``H'' mark
must be used for hydrogen bearing gases or other embrittling gases that
have the potential of causing hydrogen embrittlement.
* * * * *
0
21. In Sec.  173.302c, revise paragraph (k) to read as follows:

Sec.  173.302c  Additional requirements for the shipment of adsorbed
gases in UN pressure receptacles.

* * * * *
    (k) The filling procedure must be in accordance with Annex A of ISO
11513:2019 (IBR, see Sec.  171.7 of this subchapter). Until December
31, 2026, filling may instead be in accordance with Annex A of ISO
11513:2011(E) (IBR, see Sec.  171.7 of this subchapter).
* * * * *
0
22. Revise Sec.  173.311 to read as follows:

Sec.  173.311  Metal Hydride Storage Systems.

    The following packing instruction is applicable to transportable UN
Metal hydride storage systems (UN3468) with pressure receptacles not
exceeding 150 liters (40 gallons) in water capacity and having a
maximum developed pressure not exceeding 25 MPa. UN Metal hydride
storage systems must be designed, constructed, initially inspected, and
tested in accordance with ISO 16111:2018 (IBR, see Sec.  171.7 of this
subchapter), consistent with Sec.  178.71(m) of this subchapter. Until
December 31, 2026, UN Metal hydride storage systems may instead conform
to ISO 16111:2008(E) (IBR, see Sec.  171.7 of this subchapter). Steel
pressure receptacles or composite pressure receptacles with steel
liners must be marked in accordance with Sec.  173.301b(f), which
specifies that a steel UN pressure receptacle displaying an ``H'' mark
must be used for hydrogen-bearing gases or other gases that may cause
hydrogen embrittlement. Requalification intervals must be no more than
every five years, as specified in Sec.  180.207 of this subchapter, in
accordance with the requalification procedures prescribed in ISO
16111:2018 or ISO 16111:2008.
* * * * *

PART 175--CARRIAGE BY AIRCRAFT

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

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

0
24. In Sec.  175.1, add paragraph (e) to read as follows:

Sec.  175.1  Purpose, scope, and applicability.

* * * * *
    (e) In addition to the requirements of this part, air carriers that
are certificate holders authorized to conduct operations in accordance
with 14 CFR part 121 are also required to have a Safety Management
System meeting the conditions of 14 CFR part 5 and found to be
acceptable to the Federal Aviation Administration (FAA).
0
25. In Sec.  175.10, revise paragraphs (a) introductory text, (a)(14)
introductory text, (a)(15)(v)(A), (a)(15)(vi)(A), (a)(17)(ii)(C),
(a)(18) introductory text, and (a)(26) introductory text to read as
follows:

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

* * * * *
    (a) This subchapter does not apply to the following hazardous
materials when

carried by aircraft passengers or crewmembers provided the requirements
of Sec. Sec.  171.15 and 171.16 of this subchapter (see paragraph (c)
of this section) and the requirements of this section are met. The most
appropriate description of the hazardous material item or article must
be selected and the associated conditions for exception must be
followed:
* * * * *
    (14) Battery powered heat-producing devices (e.g., battery-operated
equipment such as diving lamps and soldering equipment) as checked or
carry-on baggage and with the approval of the operator of the aircraft.
The heating element, the battery, or other component (e.g., fuse) must
be isolated to prevent unintentional activation during transport. Any
battery that is removed must be carried in accordance with the
provisions for spare batteries in paragraph (a)(18) of this section.
Each battery must be of a type which meets the requirements of each
test in the UN Manual of Tests and Criteria, Part III, Subsection 38.3
(IBR, see Sec.  171.7 of this subchapter), and each installed or spare
lithium battery:
* * * * *
    (15) * * *
    (v) * * *
    (A) Adequately protected against damage by design of the wheelchair
or mobility aid and securely attached to the wheelchair or mobility
aid; or
* * * * *
    (vi) * * *
    (A) Adequately protected against damage by design of the wheelchair
or mobility aid and securely attached to the wheelchair or mobility
aid; or
* * * * *
    (17) * * *
    (ii) * * *
    (C) The battery is adequately protected against damage by design of
the wheelchair or mobility aid and securely attached to the wheelchair
or other mobility aid; and
* * * * *
    (18) Except as provided in Sec.  173.21 of this subchapter,
portable electronic devices (e.g., watches, calculating machines,
cameras, cellular phones, laptop and notebook computers, camcorders,
medical devices, etc.) that are not otherwise more appropriately
described and subject to separate provisions in this section,
containing dry cells or dry batteries (including lithium cells or
batteries) and spare dry cells or batteries for these devices, when
carried by passengers or crew members for personal use. Portable
electronic devices powered by lithium batteries may be carried in
either checked or carry-on baggage. When carried in checked baggage,
portable electronic devices powered by lithium batteries must be
completely switched off (i.e., not in sleep or hibernation mode) and
protected to prevent unintentional activation or damage, except
portable electronic devices powered by lithium batteries with lithium
content not exceeding 0.3 grams for lithium metal batteries and 2.7 Wh
for lithium ion batteries are not required to be switched off. Spare
lithium batteries must be carried in carry-on baggage only. Each
installed or spare lithium battery must be of a type proven to meet the
requirements of each test in the UN Manual of Tests and Criteria, Part
III, Sub-section 38.3, and each spare lithium battery must be
individually protected so as to prevent short circuits (e.g., by
placement in original retail packaging, by otherwise insulating
terminals by taping over exposed terminals, or placing each battery in
a separate plastic bag or protective pouch). In addition, each
installed or spare lithium battery:
* * * * *
    (26) Baggage equipped with lithium batteries must be carried as
carry-on baggage unless the batteries are removed from the baggage.
Batteries must be of a type which meets the requirements of each test
in the UN Manual of Tests and Criteria, Part III, Subsection 38.3 (IBR,
see Sec.  171.7 of this subchapter). Additionally, removed batteries
must be carried in accordance with the provision for spare batteries
prescribed in paragraph (a)(18) of this section. Baggage equipped with
lithium batteries may be carried as checked baggage and electronic
features may remain active if the batteries do not exceed:
* * * * *
0
26. In Sec.  175.33, revise paragraph (a)(13)(iii) to read as follows:

Sec.  175.33  Shipping paper and information to the pilot-in-command.

    (a) * * *
    (13) * * *
    (iii) UN3481 and UN3091 are not required to appear on the
information provided to the pilot-in-command when prepared in
accordance with Sec.  173.185(c)(4).
* * * * *

PART 178--SPECIFICATIONS FOR PACKAGINGS

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

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

0
28. In Sec.  178.37, revise paragraph (j) to read as follows:

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

* * * * *
    (j) Flattening test. A flattening test must be performed on one
cylinder, taken at random out of each lot of 200 or fewer, by placing
the cylinder between wedge shaped knife edges, having a 60-degree
included angle, rounded to \1/2\-inch radius. The longitudinal axis of
the cylinder must be at a 90-degree angle to the knife edges during the
test. For lots of 30 or fewer, flattening tests are authorized to be
made on a ring at least eight (8) inches long, cut from each cylinder
and subjected to the same heat treatment as the finished cylinder.
Cylinders may be subjected to a bend test in lieu of the flattening
test. Two bend test specimens must be taken in accordance with ISO
9809-1:2019(E) or ASTM E290 (IBR, see Sec.  171.7 of this subchapter),
and must be subjected to the bend test specified therein.
* * * * *
0
29. In Sec.  178.71, revise paragraphs (f)(4), (g), (i), (k)(1)(i) and
(ii), (m), and (n) to read as follows:

Sec.  178.71  Specifications for UN pressure receptacles.

* * * * *
    (f) * * *
    (4) ISO 21172-1:2015(E) Gas cylinders--Welded steel pressure drums
up to 3,000 litres capacity for the transport of gases--Design and
construction--Part 1: Capacities up-to 1,000 litres (IBR, see Sec.
171.7 of this subchapter) in combination with ISO 21172-1:2015/Amd
1:2018(E)--Gas Cylinders--Welded steel pressure drums up to 3,000
litres capacity for the transport of gases--Design and construction--
Part 1: Capacities up-to 1,000 litres--Amendment 1 (IBR, see Sec.
171.7 of this subchapter).Until December 31, 2026, the use of ISO
21172-1:2015 (IBR, see Sec.  171.7 of this subchapter) without the
supplemental amendment is authorized.
* * * * *
    (g) Design and construction requirements for UN refillable seamless
steel cylinders. In addition to the general requirements of this
section, UN refillable seamless steel cylinders must conform to the
following ISO standards, as applicable:
    (1) ISO 9809-1:2019(E), Gas cylinders--Refillable seamless steel
gas cylinders--Design, construction, and testing--Part 1: Quenched and
tempered steel cylinders with tensile strength less than 1100 MPa (IBR,
see Sec.  171.7 of this subchapter). Until December 31, 2026, a
cylinder may instead conform to ISO

9809-1:2010(E) (IBR, see Sec.  171.7 of this subchapter).
    (2) ISO 9809-2:2019(E), Gas cylinders--Design, construction and
testing of refillable seamless steel gas cylinders and tubes--Part 2:
Quenched and tempered steel cylinders and tubes with tensile strength
greater than or equal to 1100 MPa (IBR, see Sec.  171.7 of this
subchapter). Until December 31, 2026, a cylinder may instead conform to
ISO 9809-2:2010 (IBR, see Sec.  171.7 of this subchapter).
    (3) ISO 9809-3:2019(E), Gas cylinders--Design, construction and
testing of refillable seamless steel gas cylinders and tubes--Part 3:
Normalized steel cylinders and tubes. (IBR, see Sec.  171.7 of this
subchapter). Until December 31, 2026, a cylinder may instead conform to
ISO 9809-3:2010(E) (IBR, see Sec.  171.7 of this subchapter).
    (4) ISO 9809-4:2014(E), Gas cylinders--Refillable seamless steel
gas cylinders--Design, construction and testing--Part 4: Stainless
steel cylinders with an Rm value of less than 1 100 MPa (IBR, see Sec.
171.7 of this subchapter).
* * * * *
    (i) Design and construction requirements for UN non-refillable
metal cylinders. In addition to the general requirements of this
section, UN non-refillable metal cylinders must conform to ISO
11118:2015(E) Gas cylinders--Non-refillable metallic gas cylinders--
Specification and test methods, in combination with ISO 11118:2015/Amd
1:2019 Gas cylinders--Non-refillable metallic gas cylinders--
Specification and test methods--Amendment 1. (IBR, see Sec.  171.7 of
this subchapter). Until December 31, 2026, the use of ISO 11118:2015
(IBR, see Sec.  171.7 of this subchapter) without the supplemental
amendment is authorized.
* * * * *
    (k) * * *
    (1) * * *
    (i) ISO 9809-1:2019(E) Gas cylinders--Refillable seamless steel gas
cylinders--Design, construction, and testing--Part 1: Quenched and
tempered steel cylinders with tensile strength less than 1100 MPa (IBR,
see Sec.  171.7 of this subchapter). Until December 31, 2026, a
cylinder may instead conform to ISO 9809-1:2010(E) (IBR, see Sec.
171.7 of this subchapter).
    (ii) ISO 9809-3:2019(E) Gas cylinders--Design, construction and
testing of refillable seamless steel gas cylinders and tubes--Part 3:
Normalized steel cylinders and tubes. (IBR, see Sec.  171.7 of this
subchapter). Until December 31, 2026, a cylinder may instead conform to
ISO 9809-3:2010(E) (IBR, see Sec.  171.7 of this subchapter).
* * * * *
    (m) Design and construction requirements for UN metal hydride
storage systems. In addition to the general requirements of this
section, metal hydride storage systems must conform to ISO
16111:2018(E) Transportable gas storage devices--Hydrogen absorbed in
reversible metal hydride (IBR, see Sec.  171.7 of this subchapter).
Until December 31, 2026, UN metal hydride storage systems may instead
conform to ISO 16111:2008 (IBR, see Sec.  171.7 of this subchapter).
    (n) Design and construction requirements for UN cylinders for the
transportation of adsorbed gases. In addition to the general
requirements of this section, UN cylinders for the transportation of
adsorbed gases must conform to the following ISO standards, as
applicable:
    (1) ISO 11513:2019, Gas cylinders--Refillable welded steel
cylinders containing materials for sub-atmospheric gas packaging
(excluding acetylene)--Design, construction, testing, use and periodic
inspection (IBR, see Sec.  171.7 of this subchapter). Until December
31, 2026, UN cylinders may instead conform to ISO 11513:2011(E) (IBR,
see Sec.  171.7 of this subchapter).
    (2) ISO 9809-1:2019(E): Gas cylinders--Refillable seamless steel
gas cylinders--Design, construction, and testing--Part 1: Quenched and
tempered steel cylinders with tensile strength less than 1100 MPa (IBR,
see Sec.  171.7 of this subchapter). Until December 31, 2026, UN
cylinders may instead conform to ISO 9809-1:2010(E) (IBR, see Sec.
171.7 of this subchapter.
* * * * *
0
30. In Sec.  178.75, revise paragraph (d)(3) introductory text and
paragraph (d)(3)(i) through (iii) to read as follows:

Sec.  178.75  Specifications for MEGCs.

* * * * *
    (d) * * *
    (3) Each pressure receptacle of a MEGC must be of the same design
type, seamless steel, or composite, and constructed and tested
according to one of the following ISO standards:
    (i) ISO 9809-1:2019(E), Gas cylinders--Refillable seamless steel
gas cylinders--Design, construction, and testing--Part 1: Quenched and
tempered steel cylinders with tensile strength less than 1100 MPa (IBR,
see Sec.  171.7 of this subchapter). Until December 31, 2026, a
pressure receptacle may instead conform to ISO 9809-1:2010(E) (IBR, see
Sec.  171.7 of this subchapter).
    (ii) ISO 9809-2:2019(E), Gas cylinders--Design, construction and
testing of refillable seamless steel gas cylinders and tubes--Part 2:
Quenched and tempered steel cylinders and tubes with tensile strength
greater than or equal to 1100 MPa (IBR, see Sec.  171.7 of this
subchapter). Until December 31, 2026, a pressure receptacle may instead
conform to ISO 9809-2:2010(E) (IBR, see Sec.  171.7 of this
subchapter).
    (iii) ISO 9809-3:2019(E), Gas cylinders--Design, construction and
testing of refillable seamless steel gas cylinders and tubes--Part 3:
Normalized steel cylinders and tubes. (IBR, see Sec.  171.7 of this
subchapter). Until December 31, 2026, pressure receptacle may instead
conform to ISO 9809-3:2010(E) (IBR, see Sec.  171.7 of this
subchapter).
* * * * *
0
31. In Sec.  178.609, revise paragraph (d)(2) to read as follows:

Sec.  178.609  Test requirements for packagings for infectious
substances.

* * * * *
    (d) * * *
    (2) Where the samples are in the shape of a drum or jerrican, three
samples must be dropped, one in each of the following orientations:
    (i) Diagonally on the top edge, with the center of gravity directly
above the point of impact;
    (ii) Diagonally on the base edge; and
    (iii) Flat on the body or side.
* * * * *
0
32. In Sec.  178.706, revise paragraph (c)(3) to read as follows:

Sec.  178.706  Standards for rigid plastic IBCs.

* * * * *
    (c) * * *
    (3) No used material other than production residues or regrind from
the same manufacturing process may be used in the manufacture of rigid
plastic IBCs unless approved by the Associate Administrator.
* * * * *
0
33. In Sec.  178.707, revise paragraph (c)(3)(iii) to read as follows:

Sec.  178.707  Standards for composite IBCs.

* * * * *
    (c) * * *
    (3) * * *
    (iii) No used material, other than production residues or regrind
from the same manufacturing process, may be used in the manufacture of
inner receptacles unless approved by the Associate Administrator.
* * * * *

PART 180--CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS

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

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

0
35. In Sec.  180.207, revise paragraphs (d)(3) and (5), and add
paragraph (d)(8) to read as follows:

Sec.  180.207  Requirements for requalification of UN pressure
receptacles.

* * * * *
    (d) * * *
    (3) Dissolved acetylene UN cylinders: Each dissolved acetylene
cylinder must be requalified in accordance with ISO 10462:2013(E)/Amd
1:2019 (IBR, see Sec.  171.7 of this subchapter). However, a cylinder
may continue to be requalified in accordance with ISO 10462:2013(E)
(IBR, see Sec.  171.7 of this subchapter) without the supplemental
amendment until December 31, 2024. Further, a cylinder requalified in
accordance with ISO 10462:2013(E) until December 31, 2018, may continue
to be used until its next required requalification. The porous mass and
the shell must be requalified no sooner than three (3) years, six (6)
months, from the date of manufacture. Thereafter, subsequent
requalifications of the porous mass and shell must be performed at
least once every 10 years.
* * * * *
    (5) UN cylinders for adsorbed gases: Each UN cylinder for adsorbed
gases must be inspected and tested in accordance with Sec.  173.302c of
this subchapter and ISO 11513:2019(E) (IBR, see Sec.  171.7 of this
subchapter). However, a UN cylinder may continue to be requalified in
accordance with ISO 11513:2011(E) (IBR, see Sec.  171.7 of this
subchapter) until December 31, 2024.
* * * * *
    (8) UN pressure drums: UN pressure drums must be inspected and
tested in accordance with ISO 23088:2020 (IBR, see Sec.  171.7 of this
subchapter).
* * * * *

     Issued in Washington, DC, on March 31, 2023, under authority
delegated in 49 CFR 1.97.
William S. Schoonover,
Associate Administrator for Hazardous Materials Safety, Pipeline and
Hazardous Materials Safety Administration.
[FR Doc. 2023-07109 Filed 5-26-23; 8:45 am]
 BILLING CODE 4910-60-P


UNITED STATES ENVIRONMENTAL PROTECTION AGENCY                 NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY                              2000 TRAVERWOOD ROAD                            ANN ARBOR, MI  48105-2498

									          	OFFICE OF 										AIR AND RADIATION

July 26, 2011

MEMORANDUM

SUBJECT:	Meeting with Cummins

FROM:	Cleophas Jackson

TO:		Docket EPA-HQ-OAR-2010-0162

This memorandum documents a meeting held on April 26, 2011 between Cummins, DOT, and EPA and included the following individuals:

      Cummins: Brian Mormino, Gary Salemme, Bob Jorgensen, Jackie Yeager, Zhen Sun, Morgan Andreae              DOT: Coralie Cooper, John Finneran              EPA:  Bill Courtois, Byron Bunker, Cleophas Jackson, Peter Smith, Jay Smith, James Sanchez

The discussion focused primarily on the development of a vehicle drive cycle which reflected the heavy-duty engine FTP duty cycle.