Vehicle and Fuel Emissions Testing
EPA's National Vehicle and Fuel Emissions Laboratory, in Ann Arbor, Michigan
Certifying that vehicles and engines meet federal emissions and fuel economy standards
Testing engines for in-use compliance
Analyzing fuels, fuel additives, and exhaust compounds
Since its founding, EPA has been at the forefront of developing clean automotive technology and designing programs to reduce and prevent air pollution. Vehicle, engine, and fuel testing is an important way for EPA to verify emission standards are met and ensure the benefits from our programs become a reality. The National Vehicle and Fuel Emissions Laboratory (NVFEL) is a state-of-the-art test facility that provides a wide array of analytical testing and engineering services for EPA’s motor vehicle, heavy-duty engine, and nonroad engine programs to support the Agency’s regulatory goals. NVFEL is ISO 17025:2017 accredited and ISO 14001:2015 certified.