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  2. Emission Standards Reference Guide
  3. All Standards

EPA Emission Standards for Nonroad Engines and Vehicles

Glossary

Terms and acronyms

  • Aircraft: Exhaust Emission Standards (PDF)(1 pg, 86 K, March 2016, EPA-420-B-16-021) 
  • Nonroad Compression-Ignition Engines: Exhaust Emission Standards (PDF)(3 pp, 134 K, March 2016, EPA-420-B-16-022)
  • Nonroad Large Spark-Ignition Engines: Exhaust and Evaporative Emission Standards (PDF)(1 pg, 84 K, March 2016, EPA-420-B-16-023)
  • Locomotives: Exhaust Emission Standards (PDF)(2 pp, 88 K, March 2016, EPA-420-B-16-024)
  • Marine Compression-Ignition (CI) Engines: Exhaust Emission Standards (PDF)(5 pp, 181 K, July 2020, EPA-420-B-20-021)
  • Marine Spark-Ignition Engines and Vehicles: Exhaust Emission Standards (PDF)(2 pp, 118 K, March 2016, EPA-420-B-16-026)
  • Nonroad Recreational Engines and Vehicles: Exhaust Emission Standards (PDF)(1 pg, 84 K, March 2016, EPA-420-B-16-027)
  • Nonroad Spark-Ignition Engines 19 Kilowatts and Below: Exhaust Emission Standards (PDF)(2 pp, 110 K, March 2016, EPA-420-B-16-028)
  • Nonroad Spark-Ignition Engines 19 Kilowatts and Below, Recreational Engines and Vehicles, and Marine Spark-Ignition Engines: Evaporative Emission Standards (PDF)(2 pp, 95 K, March 2016, EPA-420-B-16-029)

Emission Standards Reference Guide

  • Basic Information About Emission Standards Reference Guide
  • All Standards
    • Light-Duty
    • Heavy-Duty
    • Nonroad
    • Fuel Sulfur
  • Vehicle Weight Classifications
  • EPA Emission Regulations
  • Non-EPA Resources
Contact Us About the Emission Standards Reference Guide
Contact Us About the Emission Standards Reference Guide to ask a question, provide feedback, or report a problem.
Last updated on January 7, 2025
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