NHTSA Final Rule: Federal Motor Vehicle Safety Standards; FMVSS No. 305a Electric-Powered Vehicles: Electric Powertrain Integrity Global Technical Regulation No. 20 Incorporation by Reference
Consistent with a Global Technical Regulation on electric vehicle safety, NHTSA is establishing Federal Motor Vehicle Safety Standard (FMVSS) No. 305a to replace FMVSS No. 305, “Electric-powered vehicles: Electrolyte spillage and electrical shock protection.” Among other improvements, FMVSS No. 305a applies to light and heavy vehicles and includes performance requirements for the propulsion battery. NHTSA is also establishing a new regulation, part 561, “Documentation for Electric-powered Vehicles,” that requires manufacturers to compile risk mitigation documentation and to submit standardized emergency response information to assist first and second responders handling electric vehicles.
DATES:
Effective date: This final rule is effective March 20, 2025.
IBR date: The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of February 18, 2025.
Compliance dates: The compliance date is December 22, 2025, for the emergency response documentation requirements. For all other requirements, the compliance date is September 1, 2027, for vehicles with a gross vehicle weight rating of 4,536 kilograms (kg) or less and September 1, 2028, for vehicles with a gross vehicle weight rating over 4,536 kg. Small-volume manufacturers, final-stage manufacturers, and alterers are provided an additional year to comply with the requirements beyond the dates identified above. Optional early compliance is permitted.
Petitions for Reconsideration: Petitions for reconsideration of this final rule must be received no later than February 3, 2025.
Published in the Federal Register December 20, 2024, page 104318.
View final rule.
§571.305 Standard No. 305; electric-powered vehicles: electrolyte spillage and electrical shock protection; applicable unless a vehicle is certified to §571.305a. | ||
Section heading | Revised | View text |
S3 | Revised | View text |
§571.305a Standard No. 305a; electric-powered vehicles: Electric powertrain integrity; mandatory applicability begins on September 1, 2027. | ||
Entire section | Added | View text |
New Text
§571.305 Standard No. 305; electric-powered vehicles: electrolyte spillage and electrical shock protection; applicable unless a vehicle is certified to §571.305a.
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S3. Application. This standard applies to passenger cars, and to multipurpose passenger vehicles, trucks, and buses with a gross vehicle weight rating (GVWR) of 4,536 kilograms (kg) or less, that use electrical propulsion components with working voltages greater than 60 volts direct current (VDC) or 30 volts alternating current (VAC), and whose speed attainable over a distance of 1.6 km on a paved level surface is more than 40 km/h, that are manufactured before September 1, 2027.