Snowmobiles, Dirt Bikes, and ATVs

This Web page covers land-based recreational vehicles such as snowmobiles, nonroad motorcycles (dirt bikes), and all-terrain vehicles (ATVs). Information on recreational marine engines is available on the marine diesel engines page and the marine spark-ignition engines page.

For further information or assistance regarding this Web page, contact:
ASD Information Line, phone: (734) 214-4636 or email: asdinfo@epa.gov.

About PDF Files

Proposed Technical Amendments (signed August 16, 2004)

• Fact Sheet: "Proposed Changes to Test Procedures for Nonroad Engines and Heavy-Duty Highway Engines" (EPA420-F-04-046, August 2004) 104K PDF (3 pages)
• Federal Register Notice: "Test Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments"
  • Entire Document 1.8M PDF (171 pages)
    • Part A: Pages 54845-54894 HTML or 292K PDF
    • Part B: Pages 54895-54944 HTML or 460K PDF
    • Part C: Pages 54945-54994 HTML or 772K PDF
    • Part D: Pages 54995-55015 HTML or 348K PDF
• Technical Support Document: "Test Procedures for Highway and Nonroad Engines and Omnibus Technical Amendments" (EPA420-D-04-004, August 2004) 808K PDF (70 pages)

Final Emission Standards (published November 8, 2002)

• Fact sheet: Emission Standards for New Nonroad Engines— Large Industrial Spark-ignition Engines, Recreational Marine Diesel Engines, and Recreational Vehicles (EPA420-F-02-037) 409K PDF
  
• Federal Register Notice (published November 8, 2002) 1.1M PDF
  
• Summary and Analysis of Comments (EPA420-R-02-023) 462K ZIP WPD or 1M PDF
  
• Final Regulatory Support Document (EPA420-R-02-022) 1.2M ZIP WPD or 2.5M PDF
  • Final Regulatory Support Document by Chapter
• Environmental Impacts of Newly Regulated Nonroad Engines (EPA420-F-02-033) 24K PDF
  
• Frequently Asked Questions from ATV Riders (EPA420-F-02-038) 400K PDF
  
• Frequently Asked Questions from Off-Highway Motorcycle Riders (EPA420-F-02-039) 402K PDF
  
• Frequently Asked Questions: Emission Exemption for Racing Motorcycles and Other Competition Vehicles (EPA420-F-02-045) 400K PDF
  
• Frequently Asked Questions from Snowmobile Owners (EPA420-F-02-040) 400K PDF
  
• How to Maintain or Rebuild Engines Certified to EPA Standards (EPA420-F-02-035) 407K PDF
  
• Plain-Language Format of Emission Regulations for Nonroad Engines (EPA420-F-02-046) 405K PDF
  
• Docket index (as of Sept. 13, 2002) 750K WPD or 689K PDF

  Other related documents regarding the final rule are available at http://www.epa.gov/otaq/regs/nonroad/2002/cleanrec-final.htm

Proposal Emission Standards (published October 5, 2001)

• Fact sheet: Emission Standards for New Nonroad Engines   (EPA420-F-01-026)
• Federal Register Notice (published October 5, 2001)
• Draft Regulatory Support Document  (EPA420-D-01-004)
• Draft Regulatory Support Document by Chapter
• Frequently Asked Questions:  Emission Standards for All-Terrain Vehicles (ATVs)  (EPA420-F-01-027)
• Frequently Asked Questions:  Emission Standards for Off-Highway Motorcycles  (EPA420-F-01-025)
• Frequently Asked Questions:  Emission Standards for Snowmobiles  (EPA420-F-01-024)
• Nonroad Recreational Vehicle Technologies and Costs  (EPA420-R-01-044)
• Characterization of Nonroad Motorcycle Use  (EPA420-R-01-046)
• Final Report of the Small Business Advocacy Review Panel - Control of Emissions from Nonroad Large Spark Ignition Engines, Recreational Engines (Marine and Land-based), and Highway Motorcycles

Advance Notice of Proposed Rulemaking - Control of Emissions from Nonroad Large Spark-Ignition Engines, Recreational Engines (Marine and Land-Based), and Highway Motorcycles (published December 7, 2000)

Proposed Finding for Large SI and Land-Based Recreational SI Engines (published February 8, 1999)

Links to Related EPA Pages:

• Diesel Boats and Ships
• Gasoline Boats and Personal Watercraft
• Compliance Fees
• Importing Vehicles and Engines
• Workshop Handouts - Draft Guidance for Off-Highway motorcycles, ATVs and ultility Vehicles