Regulatory FMVSS 305a: Electric-Powered Vehicles, Electric Powertrain Integrity Global Technical Regulation NHTSA has issued a final rule that amends FMVSS 305 consistent with a Global Technical Regulation on electric vehicle safety, NHTSA is establishing Federal Motor Vehicle Safety Standard (FMVSS) No. 305a to replace FMVSS... January 17, 2025