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  2. Emission Standards Reference Guide

EPA Urban Dynamometer Driving Schedule (UDDS)

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Terms and acronyms

Graph of the EPA Urban Dynamometer Driving Schedule (UDDS)

Emission Standards Reference Guide

  • Basic Information About Emission Standards Reference Guide
  • All Standards
    • Light-Duty
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    • Nonroad
    • Fuel Sulfur
  • Vehicle Weight Classifications
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Contact Us About the Emission Standards Reference Guide
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 13, 2025
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