“Heavier vehicles” means “other motor vehicles” as defined in the National Emission Standards for Surface Coating of Automobile and Light-Duty Trucks at 40 CFR 63.3176, namely “a self-propelled vehicle designed for transporting persons or property on a street or highway that has a gross vehicle weight rating over 8,500 pounds.”

Source. (See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11; ss by #12899, eff 10-17-19