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Contact Us

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

vehicle technology showcase 2015

View the Vehicle Technology Showcase

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.

Emission Testing
Laboratory

vehicle testing lab
  • Mission and Ann Arbor, Michigan facility
  • Technical capabilities

Science and Technology
Development

vehicle in a fuel testing room
  • Low Emission Light-Duty Vehicle Technology
  • Low Emission Heavy-Duty Vehicle Technology

Certification and
Compliance Testing

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  • Vehicles
  • Engines
  • Technical resources


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  • Employment and internship opportunities
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    and development agreement
 
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on September 16, 2022
United States Environmental Protection Agency

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