2007 Progress Report: Vehicle and Engine Compliance Activities

This Environmental Protection Agency Report provides a reference resource for the environmental data we generate about “mobile sources,” or moving sources of air pollution. These sources include vehicles, engines, and motorized equipment that produce exhaust and evaporative emissions. The report summarizes vehicle and engine compliance program data we collected in 2007 including test results from model year 2007 certification activities plus other types of compliance reports and test results produced during calendar year 2007. National emissions inventory
data are presented for 2006.