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  2. Regulations for Emissions from Vehicles and Engines

Proposed Rule and Related Materials for Control of Emissions of Air Pollution From Locomotive Engines and Marine Compression-Ignition Engines Less Than 30 Liters per Cylinder

Related Topics
  • Final Rule for Control of Emissions of Air Pollution From Locomotive Engines and Marine Compression-Ignition Engines Less Than 30 Liters per Cylinder; Republication
Referenced Tier Levels
Marine CI Engines:
  • Tier 3
  • Tier 4
Locomotive Engines:
  • Tier 0
  • Tier 1
  • Tier 2
  • Tier 3
  • Tier 4

Following is information for the proposed rule for Control of Emissions of Air Pollution From New Locomotive Engines and New Marine Compression-Ignition Engines Less Than 30 Liters per Cylinder.

  • Proposed Rule (pdf) (1.93 MB, published April 3, 2007)
  • Advance Notice of Proposed Rulemaking (pdf) (204 KB, published June 29, 2004)

Related Materials

Fact Sheets

  • EPA Proposal for More Stringent Emissions Standards for Locomotives and Marine Compression-Ignition Engines (pdf) (125 KB, EPA420-F-07-015, March 2007)
  • Clean Diesel Program for Locomotives and Marine Engines (pdf) (115 KB, EPA420-F-04-041, May 2004)

Draft Regulatory Impact Analysis

  • Control of Emissions of Air Pollution from Locomotive Engines and Marine Compression-Ignition Engines Less than 30 Liters per Cylinder (pdf) (22.8 MB, EPA420-D-07-001, March 2007)

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 13, 2025
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