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DOT/PHMSA RIN: 2137-AG21 Publication ID: 2026 
Title: ●Hazardous Materials: Advancing Safety of Highway, Rail, and Vessel Transportation  
Abstract:

PHMSA is adopting several amendments (initially proposed under RIN 2137-AF41) to the Hazardous Materials Regulations to reduce unnecessary regulatory burdens associated with the safe transportation of hazardous materials in commerce. These amendments will reduce costs on hazardous materials transporters and eliminate unnecessary regulatory burdens on transportation while maintaining or increasing the level of safety provided in the Hazardous Materials Regulations.  

 
Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: Undetermined 
EO 14192 Designation: Deregulatory 
CFR Citation: 49 CFR Parts 171, 172, 173, 174, 176, 177, 17     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 49 U.S.C. 5101 et seq.   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  11/00/2026 
Additional Information: As this is the second final rule to result from the HM-265 NPRM, PHMSA proposes to designate the rule HM-265C.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Related RINs: Split from 2137-AF41  Related Agencies: Common: DOT/FRA; 
Agency Contact:
Steven Andrews
Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue SE,
Washington, DC 20590
Phone:202 366-8553
Email: steven.andrews@dot.gov