Proposed Rule2025-12127

Hazardous Materials: Reducing Costs to Domestic Shippers and Carriers of Limited Quantities

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
July 1, 2025

Issuing agencies

Transportation DepartmentPipeline and Hazardous Materials Safety Administration

Abstract

This NPRM proposes to remove undue regulatory burdens by allowing for a reduced sized marking for limited quantity shipments of hazardous materials.

Full Text

<html>
<head>
<title>Federal Register, Volume 90 Issue 124 (Tuesday, July 1, 2025)</title>
</head>
<body><pre>
[Federal Register Volume 90, Number 124 (Tuesday, July 1, 2025)]
[Proposed Rules]
[Pages 28571-28574]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-12127]


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

DEPARTMENT OF TRANSPORTATION

Pipeline and Hazardous Materials Safety Administration

49 CFR Parts 172 and 173

[Docket No. PHMSA-2025-0090 (HM-268B)]
RIN 2137-AG04


Hazardous Materials: Reducing Costs to Domestic Shippers and 
Carriers of Limited Quantities

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

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: This NPRM proposes to remove undue regulatory burdens by 
allowing for a reduced sized marking for limited quantity shipments of 
hazardous materials.

DATES: Comments must be received on or before September 2, 2025.

ADDRESSES: You may submit comments identified by the Docket Number 
PHMSA-2025-0090 using any of the following methods:
    E-Gov Web: <a href="https://www.regulations.gov">https://www.regulations.gov</a>. This site allows the public 
to enter comments on any Federal Register notice issued by any agency. 
Follow the online instructions for submitting comments.
    Mail: Docket Management System: U.S. Department of Transportation, 
1200 New Jersey Avenue SE, West Building Ground Floor, Room W12-140, 
Washington, DC 20590-0001.
    Hand Delivery: U.S. DOT Docket Management System: West Building 
Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, between 9 a.m. 
and 5 p.m., Monday through Friday, except Federal holidays.
    Fax: 1-202-493-2251.
    Instructions: Please include the docket number PHMSA-2025-0090 at 
the beginning of your comments. If you submit your comments by mail, 
submit two copies. If you wish to receive confirmation that PHMSA 
received your comments, include a self-addressed stamped postcard. 
Internet users may submit comments at <a href="https://www.regulations.gov">https://www.regulations.gov</a>.

    Note: Comments are posted without changes or edits to <a href="https://www.regulations.gov">https://www.regulations.gov</a>, including any personal information provided. 
There is a privacy statement published on <a href="https://www.regulations.gov">https://www.regulations.gov</a>.

    Privacy Act: In accordance with 5 U.S.C. 553(c), DOT solicits 
comments from the public to inform its rulemaking process. DOT posts 
these comments, without edit, including any personal information the 
commenter provides, to <a href="https://www.regulations.gov">https://www.regulations.gov</a>, as described in the 
system of records notice (DOT/ALL-14 FDMS), which can be reviewed at 
<a href="https://www.dot.gov/privacy">https://www.dot.gov/privacy</a>.
    Confidential Business Information: Confidential Business 
Information (CBI) is commercial or financial information that is both 
customarily and actually treated as private by its owner. Under the 
Freedom of Information Act (FOIA, 5 U.S.C. 552), CBI is exempt from 
public disclosure. It is important that you clearly designate the 
comments submitted as CBI if: your comments responsive to this document 
contain commercial or financial information that is customarily treated 
as private; you actually treat such information as private; and your 
comment is relevant or responsive to this notice. You may ask PHMSA to 
provide confidential treatment to information you give to the agency by 
taking the following steps: (1) mark each page of the original document 
submission containing CBI as ``Confidential''; (2) send PHMSA, along 
with the original document, a second copy of the original document with 
the CBI deleted; and (3) explain why the information that you are 
submitting is CBI. Submissions containing CBI should be sent to T. 
Glenn Foster, Standards and Rulemaking Division, Pipeline and Hazardous 
Materials Safety Administration (PHMSA), 2nd Floor, 1200 New Jersey 
Avenue SE, Washington, DC 20590-0001, or by email at 
<a href="/cdn-cgi/l/email-protection#f1969d949f9fdf979e82859483b1959e85df969e87"><span class="__cf_email__" data-cfemail="10777c757e7e3e767f6364756250747f643e777f66">[email&#160;protected]</span></a>. Any materials PHMSA receives that is not 
specifically designated as CBI will be placed in the public docket.
    Docket: For access to the docket to read background documents or 
comments received, go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the online 
instructions for accessing the docket. Alternatively, you may review 
the documents in person at the street address listed above.

FOR FURTHER INFORMATION CONTACT: T. Glenn Foster, Standards and 
Rulemaking Division, Pipeline and Hazardous Materials Safety 
Administration (PHMSA), 2nd Floor, 1200 New Jersey Avenue SE, 
Washington, DC 20590-0001, or by email at <a href="/cdn-cgi/l/email-protection#056269606b6b2b636a7671607745616a712b626a73"><span class="__cf_email__" data-cfemail="a2c5cec7cccc8cc4cdd1d6c7d0e2c6cdd68cc5cdd4">[email&#160;protected]</span></a>.

I. General Discussion

    PHMSA is proposing to revise 49 CFR 172.315(a)(2) to allow for a 
reduced sized limited quantity marking (i.e., a shipping label) for 
certain shipments of hazardous materials. PHMSA is also proposing to 
revise Sec.  173.25(a)(6) to specifically state that this marking is 
not authorized on overpacks. PHMSA has made a preliminary determination 
that the current requirements in these regulations impose an undue 
burden on limited quantity shipments of hazardous materials. This NPRM, 
if finalized, would give affected entities regulatory flexibility by 
allowing a limited quantity marking to be used on certain packages. 
PHMSA expects that the proposed amendments would provide shippers and 
carriers of hazardous materials the ability to transport abundant, 
reliable, and affordable consumer products in response to residential, 
commercial, and industrial demand.
    A ``limited quantity'' of a hazardous material is defined in Sec.  
171.8 as the maximum amount of a hazardous material for which there is 
a specific labeling or packaging exception. Currently, Sec.  172.315 
specifies the marking requirements for limited quantities of hazardous 
materials, with paragraph (a)(2) of this section detailing the minimum 
size requirements. On January 17, 2024, PHMSA received a petition for 
rulemaking (P-1778 \1\) from the Council of Safe Transportation of 
Hazardous Articles (COSTHA) requesting the incorporation of Department 
of Transportation (DOT) special permit (SP) 21015 into the Hazardous 
Materials Regulations (HMR). COSTHA requested the modification of Sec.  
172.315(a)(2) to allow for the transportation in commerce of packages 
containing limited quantities of hazardous materials with a reduced 
size limited quantity marking placed on the package shipping label. 
COSTHA noted in its petition that it was unaware of any incidents that 
occurred involving DOT-SP 21015, and that its incorporation into the 
HMR would

[[Page 28572]]

reduce industry burdens and facilitate compliant processes and 
preparation of lower risk hazardous materials. PHMSA responded to this 
petition on July 18, 2024, and determined that the proposed amendment 
of Sec.  172.315(a)(2) warranted further consideration.
---------------------------------------------------------------------------

    \1\ P-1778, Council on the Safe Transportation of Hazardous 
Articles (COSTHA)--<a href="https://www.regulations.gov/docket/PHMSA-2024-0002/document">https://www.regulations.gov/docket/PHMSA-2024-0002/document</a>.
---------------------------------------------------------------------------

    PHMSA is not aware of any safety concerns related to the 
incorporation of DOT-SP 21015 into the HMR and agrees with the 
petitioner that doing so would reduce unnecessary compliance burdens; 
specifically, by eliminating the need to apply for a special permit in 
accordance with Sec.  107.105, to seek party status in accordance with 
Sec.  107.107, and to request a renewal in accordance with Sec.  
107.109. Incorporating DOT-SP 21015 into the HMR would also allow 
offerors of limited quantities shipments to use a consolidated marking 
on the shipping label, eliminating the need for a separate limited 
quantity label.
    For these reasons, PHMSA is proposing to revise Sec.  172.315 to 
allow for a reduced size limited quantity marking that is also capable 
of electronically communicating to carriers that the package contains 
hazardous materials shipped under a limited quantity exception and the 
authorized modes of transportation. PHMSA is also proposing to revise 
Sec.  173.25(a)(6) to specifically state that the reduced sized limited 
quantity mark is not authorized on overpacks. PHMSA does not expect 
these revisions to have any adverse impact on safety.

II. Regulatory Analysis and Notices

A. Legal Authority

    This proposed rule is published under the authority of the 
Secretary of Transportation set forth in the Federal Hazardous 
Materials Transportation Laws (49 U.S.C. 5101 et seq.) and delegated to 
the PHMSA Administrator pursuant to 49 CFR 1.97.

B. Executive Orders 12866; Regulatory Planning and Review

    Executive Order (E.O.) 12866 (``Regulatory Planning and 
Review''),\2\ as implemented by DOT Order 2100.6B (``Policies and 
Procedures for Rulemaking''), requires agencies to regulate in the 
``most cost-effective manner,'' to make a ``reasoned determination that 
the benefits of the intended regulation justify its costs,'' and to 
develop regulations that ``impose the least burden on society.'' DOT 
Order 2100.6B specifies that regulations should generally ``not be 
issued unless their benefits are expected to exceed their costs.'' In 
arriving at those conclusions, E.O. 12866 requires that agencies should 
consider ``both quantifiable measures . . . and qualitative measures of 
costs and benefits that are difficult to quantify'' and ``maximize net 
benefits . . . unless a statute requires another regulatory approach.'' 
E.O. 12866 also requires that ``agencies should assess all costs and 
benefits of available regulatory alternatives, including the 
alternative of not regulating.'' DOT Order 2100.6B directs that PHMSA 
and other Operating Administrations must generally choose the ``least 
costly regulatory alternative that achieves the relevant objectives'' 
unless required by law or compelling safety need.
---------------------------------------------------------------------------

    \2\ 58 FR 51735 (Oct. 4, 1993).
---------------------------------------------------------------------------

    E.O. 12866 and DOT Order 2100.6B also require that PHMSA submit 
``significant regulatory actions'' to the Office of Information and 
Regulatory Affairs (OIRA) within the Executive Office of the 
President's Office of Management and Budget (OMB) for review. This 
proposed rule is a not significant regulatory action pursuant to E.O. 
12866; it also has not designated this rule as a ``major rule'' as 
defined by the Congressional Review Act (5 U.S.C. 801 et seq.).
    PHMSA has complied with the requirements in E.O. 12866 as 
implemented by DOT Order 2100.6B and made a preliminary determination 
that this proposed rule will result in cost savings by reducing 
regulatory burdens and regulatory uncertainty for hazardous materials 
shippers and carriers. The proposed rule would eliminate the need for a 
separate limited quantity label, as the hazard communication 
information would be embedded in the shipping label, producing cost 
savings for the transportation industry and the public to whom those 
entities generally transfer a portion of their compliance costs.

C. Executive Orders 14192 and 14219

    This proposed rule, if finalized as proposed, is expected to be an 
E.O. 14192 deregulatory action.\3\ PHMSA seeks data that would be 
helpful to generate an estimate of the cost savings from this rule. 
PHMSA's initial estimates are that the total costs of the rule on the 
regulated community will be less than zero. Nor does this proposed rule 
does implicate any of the factors identified in section 2(a) of E.O. 
14219 indicative of a regulation that is ``unlawful . . . [or] that 
undermine[s] the national interest.'' \4\
---------------------------------------------------------------------------

    \3\ 90 FR 9065 (Jan. 31, 2025).
    \4\ 90 FR 10583 (Feb. 19, 2025).
---------------------------------------------------------------------------

D. Energy-Related Executive Orders 13211, 14154, and 14156

    The President has declared in E.O. 14156 (``Declaring a National 
Energy Emergency'') \5\ a national emergency to address the United 
States's inadequate energy development production, transportation, 
refining, and generation capacity. Similarly, E.O. 14154 (``Unleashing 
American Energy'') \6\ asserts a Federal policy to unleash American 
energy by ensuing access to abundant supplies of reliable, affordable 
energy from (inter alia) the removal of ``undue burden[s]'' on the 
identification, development, or use of domestic energy resources such 
as PHMSA-jurisdictional shippers and carriers of hazardous materials. 
PHMSA preliminarily finds this proposed rule is consistent with each of 
E.O. 14156 and E.O. 14154 because it will not impose any burden on the 
transportation of energy or energy-related products.
---------------------------------------------------------------------------

    \5\ 90 FR 8353 (Jan. 29, 2025).
    \6\ 90 FR 8353 (Jan. 29, 2025).
---------------------------------------------------------------------------

    This proposed rule is not a ``significant energy action'' under 
E.O. 13211 (``Actions Concerning Regulations That Significantly Affect 
Energy Supply, Distribution, or Use''),\7\ which requires Federal 
agencies to prepare a Statement of Energy Effects for any ``significant 
energy action.'' Because this proposed rule is not a significant action 
under E.O. 12866, it will not have a significant adverse effect on 
supply, distribution, or energy use; and OIRA has therefore not 
designated this proposed rule as a significant energy action. 
Therefore, the consultation and funding requirements of E.O. 13132 do 
not apply.
---------------------------------------------------------------------------

    \7\ 66 FR 28355 (May 22, 2001).
---------------------------------------------------------------------------

E. Executive Order 13132: Federalism

    PHMSA analyzed this proposed rule in accordance with the principles 
and criteria contained in E.O. 13132 (``Federalism'') \8\ and the 
Presidential Memorandum (``Preemption'') published in the Federal 
Register on May 22, 2009.\9\ E.O. 13132 requires agencies to assure 
meaningful and timely input by State and local officials in the 
development of regulatory policies that may have ``substantial direct 
effects on the States, on the relationship between the National 
Government and the States, or on the distribution of power and 
responsibilities among the various levels of government.'' The Federal 
Hazardous Materials Transportation laws contain an express preemption 
provision at 49 U.S.C. 5125(b) that

[[Page 28573]]

preempts state, local, and tribal requirements on certain covered 
subjects, unless the non-federal requirements are ``substantively the 
same'' as the federal requirements, including the following:
---------------------------------------------------------------------------

    \8\ 64 FR 43255 (Aug. 10, 1999).
    \9\ 74 FR 24693 (May 22, 2009).
---------------------------------------------------------------------------

    (1) The designation, description, and classification of hazardous 
material;
    (2) The packing, repacking, handling, labeling, marking, and 
placarding of hazardous material;
    (3) The preparation, execution, and use of shipping documents 
related to hazardous material and requirements related to the number, 
contents, and placement of those documents;
    (4) The written notification, recording, and reporting of the 
unintentional release in transportation of hazardous material; and
    (5) The design, manufacture, fabrication, inspection, marking, 
maintenance, recondition, repair, or testing of a packaging or 
container represented, marked, certified, or sold as qualified for use 
in transporting hazardous material in commerce.
    This proposed rule addresses covered subject items paragraph I 
above and would preempt state, local, and Tribal requirements not 
meeting the ``substantively the same'' standard. While the proposed 
rule may operate to preempt some State requirements, it would not 
impose any regulation that has substantial direct effects on the 
States, the relationship between the National Government and the 
States, or the distribution of power and responsibilities among the 
various levels of government. The preemptive effect of the regulatory 
amendments in this proposed rule is limited to the minimum level 
necessary to achieve the objectives of the Federal Hazardous Materials 
Transportation laws. Therefore, the consultation and funding 
requirements of E.O. 13132 do not apply.

F. Regulatory Flexibility Act

    The Regulatory Flexibility Act (5 U.S.C. 601 et seq.) requires 
Federal agencies to conduct an Initial Regulatory Flexibility Analysis 
(IRFA) for a proposed rule subject to notice-and-comment rulemaking 
under the APA unless the agency head certifies that the proposed rule 
in the rulemaking will not have a significant economic impact on a 
substantial number of small entities. E.O. 13272 (``Proper 
Consideration of Small Entities in Agency Rulemaking'') \10\ obliges 
agencies to establish procedures promoting compliance with the 
Regulatory Flexibility Act. DOT posts its implementing guidance on a 
dedicated web page.\11\ This proposed rule was developed in accordance 
with E.O. 13272 and DOT implementing guidance to ensure compliance with 
the Regulatory Flexibility Act. The proposed rule is expected to reduce 
burdens. Therefore, PHMSA certifies the proposed rule does not have a 
significant impact on a substantial number of small entities.
---------------------------------------------------------------------------

    \10\ 67 FR 53461 (Aug. 16, 2002).
    \11\ DOT, ``Rulemaking Requirements Related to Small Entities,'' 
<a href="https://www.transportation.gov/regulations/rulemaking-requirements-concerning-small-entities">https://www.transportation.gov/regulations/rulemaking-requirements-concerning-small-entities</a> (last accessed Sept 3, 2024).
---------------------------------------------------------------------------

G. Unfunded Mandates Reform Act of 1995

    The Unfunded Mandates Reform Act (UMRA, 2 U.S.C. 1501 et seq.) 
requires agencies to assess the effects of Federal regulatory actions 
on State, local, and Tribal governments, and the private sector. For 
any proposed or direct final rule that includes a Federal mandate that 
may result in the expenditure by state, local, and Tribal governments, 
in the aggregate of $100 million or more (in 1996 dollars) in any given 
year, the agency must prepare, amongst other things, a written 
statement that qualitatively and quantitatively assesses the costs and 
benefits of the Federal mandate.
    This proposed rule does not impose unfunded mandates under UMRA 
because it does not result in costs of $100 million or more (in 1996 
dollars) per year for either State, local, or Tribal governments, or to 
the private sector.

H. National Environmental Policy Act

    The National Environmental Policy Act (NEPA, 42 U.S.C. 4321 et. 
seq.) requires that Federal agencies assess and consider the impact of 
major Federal actions on the human and natural environment.
    PHMSA analyzed this proposed rule in accordance with NEPA and has 
preliminarily determined that the rulemaking will not adversely affect 
safety and therefore will not significantly affect the quality of the 
human and natural environment.

I. Executive Order 13175

    PHMSA analyzed this proposed rule according to the principles and 
criteria in E.O. 13175 (``Consultation and Coordination with Indian 
Tribal Governments'') \12\ and DOT Order 5301.1A (``Department of 
Transportation Tribal Consultation Policies and Procedures''). E.O. 
13175 requires agencies to assure meaningful and timely input from 
Tribal government representatives in the development of rules that 
significantly or uniquely affect Tribal communities by imposing 
``substantial direct compliance costs'' or ``substantial direct 
effects'' on such communities or the relationship or distribution of 
power between the Federal government and Tribes.
---------------------------------------------------------------------------

    \12\ 65 FR 67249 (Nov. 9, 2000).
---------------------------------------------------------------------------

    PHMSA assessed the impact of the proposed rule and determined that 
it will not significantly or uniquely affect Tribal communities or 
Indian Tribal governments. The rulemaking's regulatory amendments have 
a broad, national scope; therefore, this proposed rule will not 
significantly or uniquely affect Tribal communities, much less impose 
substantial compliance costs on Native American Tribal governments or 
mandate Tribal action. For these reasons, PHMSA has concluded that the 
funding and consultation requirements of E.O. 13175 and DOT Order 
5301.1A do not apply.

J. Paperwork Reduction Act

    The Paperwork Reduction Act (44 U.S.C. 3501 et seq.) and its 
implementing regulations at 5 CFR 1320.8(d) requires that PHMSA provide 
interested members of the public and affected agencies with an 
opportunity to comment on information collection and recordkeeping 
requests. This rulemaking will not create, amend, or rescind any 
existing information collections. However, this rulemaking eliminates 
the need for persons to renew a special permit, resulting in a decrease 
in paperwork burden for special permit holders. PHMSA estimates the 
reduction in information collection burden as follows:
    OMB Control No. 2137-0051: Rulemaking, Special Permits, and 
Preemption Requirements.
    Decrease in Annual Number of Respondents: 8.
    Decrease in Annual Responses: 8.
    Decrease in Annual Burden Hours: 12.
    Decrease in Annual Burden Cost: $0.
    PHMSA specifically requests comments on the information collection 
and recordkeeping burdens associated with developing, implementing, and 
maintaining these requirements for approval under this NPRM. Address 
written comments to the Dockets Unit as identified in the ADDRESSES 
section of this NPRM. PHMSA must receive comments regarding information 
collection burdens prior to the close of the comment period identified 
in the DATES section of this NPRM. Notwithstanding any other provision 
of law, no person is required to respond to a collection of information 
unless such collection displays a valid Office of

[[Page 28574]]

Management and Budget (OMB) control number.
    Please direct your requests for a copy of this information 
collection to Steven Andrews, Office of Hazardous Materials Standards 
(PHH-12), Pipeline and Hazardous Materials Safety Administration, 1200 
New Jersey Avenue SE, 2nd Floor, Washington, DC 20590-0001.

K. Executive Order 13609 and International Trade Analysis

    E.O. 13609 (``Promoting International Regulatory Cooperation'') 
\13\ requires agencies consider whether the impacts associated with 
significant variations between domestic and international regulatory 
approaches are unnecessary or may impair the ability of American 
business to export and compete internationally. In meeting shared 
challenges involving health, safety, labor, security, environmental, 
and other issues, international regulatory cooperation can identify 
approaches that are at least as protective as those that are or would 
be adopted in the absence of such cooperation. International regulatory 
cooperation can also reduce, eliminate, or prevent unnecessary 
differences in regulatory requirements.
---------------------------------------------------------------------------

    \13\ 77 FR 26413 (May 4, 2012).
---------------------------------------------------------------------------

    Similarly, the Trade Agreements Act of 1979 (Pub. L. 96-39), as 
amended by the Uruguay Round Agreements Act (Pub. L. 103-465), 
prohibits Federal agencies from establishing any standards or engaging 
in related activities that create unnecessary obstacles to the foreign 
commerce of the United States. For purposes of these requirements, 
Federal agencies may participate in the establishment of international 
standards, so long as the standards have a legitimate domestic 
objective, such as providing for safety, and do not operate to exclude 
imports that meet this objective. The statute also requires 
consideration of international standards and, where appropriate, that 
they be the basis for U.S. standards.
    PHMSA engages with international standards setting bodies to 
protect the safety of the American public. PHMSA has assessed the 
effects of the proposed rule and has determined that its regulatory 
amendments will not cause unnecessary obstacles to foreign trade.

L. Cybersecurity and Executive Order 14028

    E.O. 14028 (``Improving the Nation's Cybersecurity'') \14\ directed 
the Federal government to improve its efforts to identify, deter, and 
respond to ``persistent and increasingly sophisticated malicious cyber 
campaigns.'' PHMSA has considered the effects of the proposed rule and 
has determined that its regulatory amendments would not materially 
affect the cybersecurity risk profile for affected entities.
---------------------------------------------------------------------------

    \14\ 86 FR 26633 (May 17, 2021).
---------------------------------------------------------------------------

List of Subjects

49 CFR Part 172

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

 49 CFR Part 173

    Hazardous materials transportation, Training, Packaging and 
containers, Reporting and recordkeeping requirements.

    For the reasons set forth above, PHMSA proposes to amend 49 CFR 
parts 172 and 173 as follows:

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

0
1. 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
2. In Sec.  172.315, add paragraph (a)(2)(iii) to read as follows:


Sec.  172.315  Limited quantities.

* * * * *
    (a) * * *
    (2) * * *
    (iii) Reduced Size Marking on Shipping Labels. Except for the 
shipment of radioactive materials and hazardous materials transported 
by air or international vessels, the shipper may place a reduced size 
limited quantity marking on the package shipping label regardless of 
the size of packaging. Each marking must be a minimum of 25 mm on each 
side and the width of the border forming the square on point must be 
readily visible. The square-on-point must be durable, legible, readily 
visible and displayed on a background of sharply contrasting color. 
Each shipping label must be capable of electronically communicating to 
carriers that the package contains hazardous materials shipped under a 
limited quantity exception and the authorized modes of transportation.
* * * * *

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

0
3. 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
4. In Sec.  173.25, revise paragraph (a)(6) to read as follows:


Sec.  173.25  Authorized packagings and overpacks.

    (a) * * *
    (6) For limited quantities, the overpack is marked with a limited 
quantity marking prescribed in Sec.  172.315 of this subchapter, unless 
a limited quantity marking representative of the hazardous material in 
the overpack is visible. The reduced size marking (25 mm x 25 mm) is 
not authorized for use on the outside of an overpack.
* * * * *

    Issued in Washington, DC, on June 26, 2025, under the authority 
delegated in 49 CFR 1.97.
Benjamin D. Kochman,
Acting Administrator.
[FR Doc. 2025-12127 Filed 6-27-25; 4:15 pm]
BILLING CODE 4910-60-P


</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>
Indexed from Federal Register on July 1, 2025.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.