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  2. Regulations for Emissions from Vehicles and Engines

Advance Notice of Proposed Rulemaking for Control of Emissions From Nonroad Large Spark-Ignition Engines, Recreational Engines (Marine and Land-Based), and Highway Motorcycles

Basic Information

Code of Federal Regulations Citations

  • 40 CFR Part 86
  • 40 CFR Part 94
  • 40 CFR Part 1048
  • 40 CFR Part 1051
  • Rule Summary
  • Additional Resources

Rule Summary

The U.S. Environmental Protection Agency (EPA) is publishing an Advance Notice of Proposed Rulemaking concerning emissions from new nonroad vehicles and engines that are currently unregulated, and highway motorcycles.

  • Advance Notice of Proposed Rulemaking (pdf) (370 KB, published December 7, 2000)
  • Summary and Analysis of Comments (PDF) (59 KB, EPA-420-R-00-022, November 2000)
Related Regulations
  • Proposed Rule and Related Materials for Control of Emissions From Nonroad Large Spark-Ignition Engines and Recreational Engines (Marine and Land-Based)

Additional Resources

Fact Sheet

  • Emission Standards for New Nonroad Engines and Highway Motorcycles (pdf) (15.2 KB, EPA420-F-00-046, November 2000)

Other

  • Final Finding: Control of Emissions From New Nonroad Spark-Ignition Engines Rated Above 19 Kilowatts and New Land-Based Recreational Spark-Ignition Engines (pdf) (236 KB, published December 7, 2000)
  • Memorandum: Updated Emission Modeling for Large SI Engines (pdf) (82.7 KB, EPA420-F-00-049, November 2000)
  • Memorandum: Emission Data and Procedures for Large SI Engines (pdf) (119 KB, EPA420-F-00-050, January 2001)

Regulations for Emissions from Vehicles and Engines

  • Onroad
    • Passenger Vehicles
    • Commercial Trucks & Buses
    • Motorcycles
  • Nonroad
    • Aircraft
    • Heavy Equipment
    • Locomotives
    • Marine
    • Recreational Vehicles
    • Small Equipment & Tools
  • Greenhouse Gas
Contact Us About Regulations for Emissions from Vehicles and Engines
Contact Us About Regulations for Emissions from Vehicles and Engines to ask a question, provide feedback, or report a problem.
Last updated on May 9, 2025
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