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Vehicle and Fuel Emissions Testing

  • EPA’s lab

    The National Vehicle and Fuel Emissions Laboratory is the U.S. EPA’s primary facility for testing vehicle emissions and developing emission standards.

    Learn about NVFEL

  • At NVFEL

    We test and analyze vehicles, engines and fuels to ensure they meet federal and fuel economy standards; and we develop new technologies to reduce emissions and increase fuel efficiency.

    Learn about the technologies

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 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

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    See our facility and learn about the technical capabilities of our lab.

    Learn about NVFEL
  • Science & Technology

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    Learn about low emission light-duty and heavy-duty vehicles and see the certification and compliance testing we do.

    Learn about the technologies
  • Jobs & Other Opportunities

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    Learn about employment opportunities, grants, contracting and Industry and government cooperative research.

    Work with us
 
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Last updated on April 18, 2025
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