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Minimum Sound Requirements for Hybrid and Electric Vehicles
This standard applies to (a) electric vehicles with a GVWR of 4,536 kilograms or less that are passenger cars, MPVs, trucks, or buses; (b) hybrid vehicles with a GVWR of 4,536 kilograms or less that are passenger cars, multi-purpose passenger vehicles, trucks, or buses; and (c) electric vehicles and hybrid vehicles that are low-speed vehicles.