Trucks are the largest source of air pollution in California, which has the worst air quality in the nation, the agency stated Oct. 8. The California truck rules, the first of its kind in the nation, were adopted into federal Clean Air Act plan requirements in 2012.
Privately-owned heavy-duty diesel trucks that operate in California must meet the state’s emissions requirements or use DPFs.
A Virginia trucking company will pay $100,000 to the Environmental Protection Agency and an additional $290,000 to California in the first federal enforcement of the state’s Truck and Bus Regulation. The EPA has fined Estes Express Lines $100,000 for lacking diesel particulate filters on 73 trucks operating in California. That represents 15 percent of the fleet Estes operates there, but the national carrier now only uses new trucks in the state.