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DOT/PHMSA RIN: 2137-AF47 Publication ID: Fall 2023 
Title: Hazardous Materials: Modernizing Regulations to Improve Safety and Efficiency 

This rulemaking would consider potential amendments to the Hazardous Materials Regulations (HMR) identified by internal agency review and public comments. PHMSA has identified a number of complex amendments, including package design, regulatory updates, and incident reporting and data. Working closely with our stakeholders, PHMSA seeks to ensure the HMR is amended as necessary to reflect new technologies, improved manufacturing methods, and current economic conditions. Finally, this rulemaking may reduce costs by decreasing regulatory burdens without reducing safety.

Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Prerule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 49 CFR 171    49 CFR 172    49 CFR 173    49 CFR 174    49 CFR 175    49 CFR 176    49 CFR 177    49 CFR 178    49 CFR 179    49 CFR 180   
Legal Authority: 49 U.S.C. 5101 et seq.   
Legal Deadline:  None
Action Date FR Cite
ANPRM  07/05/2023  88 FR 43016   
ANPRM Comment Period Extended  09/21/2023  88 FR 65148   
ANPRM Comment Period Extended End  12/04/2023 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:   Public Comment URL:  
RIN Data Printed in the FR: No 
Agency Contact:
Eamonn Patrick
Transportation Specialist
Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue SW,
Washington, DC 20590
Phone:202 366-8553