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  2. Regulations for Emissions from Vehicles and Engines

Direct Final Rule: Amendments to Emission Requirements Applicable to New Nonroad CI Engines at or Above 37 Kilowatts: Provisions for Replacement CI Engines and the Use of On-Highway CI Engines in Nonroad Vehicles

Direct Final Rule: Amendments to Emission Requirements Applicable to New Nonroad CI Engines at or Above 37 Kilowatts: Provisions for Replacement CI Engines and the Use of On-Highway CI Engines in Nonroad Vehicles
Basic Information
Code of Federal Regulations Citations
  • 40 CFR Part 86
  • 40 CFR Part 89

Rule Summary

These amendments adopt the original replacement-engine exemption for nonroad engines. These amendments also allow nonroad vehicle manufacturers to use certified highway engines in nonroad vehicles in certain circumstances.

  • Direct Final Rule (PDF)(6 pp, 136 K, published November 12, 1996, About PDF)

Regulations for Emissions from Vehicles and Engines

  • Onroad
    • Passenger Vehicles
    • Commercial Trucks & Buses
    • Motorcycles
  • Nonroad
    • Aircraft
    • Heavy Equipment
    • Locomotives
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  • 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 April 18, 2024
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