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DOT/NHTSA RIN: 2127-AM43 Publication ID: Fall 2023 
Title: Updates to FMVSS No. 305, Electric-Powered Vehicles; Electrolyte Spillage and Electrical Shock Protection 

This notice proposes adding safety requirements for propulsion batteries in electric-powered vehicles and extending the applicability of FMVSS No. 305 to heavy vehicles (vehicles with a gross vehicle weight rating greater than 10,000 pounds) to align the standard with global technical regulation (GTR) No. 20, Electric vehicle safety. The proposal includes requirements to mitigate fire of the propulsion batteries during normal vehicle operations, charging, and post-crash.

Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 49 CFR 571.305   
Legal Authority: 49 U.S.C. 30111    49 U.S.C. 30115    49 U.S.C. 30117    49 U.S.C. 30166    49 U.S.C. 322    delegation of authority at 49 CFR 1.95   
Legal Deadline:  None
Action Date FR Cite
NPRM  12/00/2023 
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:
Stefanie Goodwin
Safety Standards Engineer
Department of Transportation
National Highway Traffic Safety Administration
1200 New Jersey Avenue SE,
Washington, DC 20590
Phone:202 366-3827