Snowmobiles, Dirt Bikes, and ATVs
This page provides general and technical information about 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.
- Regulations
- Certification and Compliance Guidance
- Verify/CDX-Interactive Online Compliance Information System
- Related Links
NOTE: You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.
Regulations
- See the Electronic Code of Federal Regulations (e-CFR) for the full text of current regulations that apply to Large SI engines:
- Emission Standards: 40 CFR Part 1051
- Chassis Emission Testing Procedure: 40 CFR Part 86 Subpart F
- Engine Emission Testing Procedure: 40 CFR Part 1065
- Compliance Provisions: 40 CFR Part 1068
- Exhaust Emission Standards for 2012 and Later Model Year Snowmobiles (published June 25, 2008) The purpose of this action is to remove the nitrogen oxide (NOx) component from the 2012 and later model year snowmobile emissions standards in response to a court decision.
- Direct Final Rule | PDF Version (7 pp, 187K, published June 25, 2008)
- Proposed rule | PDF Version (4 pp, 102K, published June 25, 2008)
- Proposed Emission Standards (published May 18, 2007)
- Regulation (PDF) the entire document (297 pp, 4MB) or:
- Pages 28097-28146 | PDF Version (372K)
- Pages 28147-28196 | PDF Version (469K)
- Pages 28197-28246 | PDF Version (799K)
- Pages 28247-28296 | PDF Version (882K)
- Pages 28297-28346 | PDF Version (874K)
- Pages 28347-28393 | PDF Version (871K)
- Redline version highlighting proposed changes for 40 CFR part 1051 (PDF) (64 pp, 581K), 1065 (PDF) (83 pp, 1.3MB), and 1068 (PDF) (48 pp, 628K)
- Regulation (PDF) the entire document (297 pp, 4MB) or:
- Direct Final Rule and Concurrent
Notice of Proposed Rule: Extension of Temporary Exhaust Emission
Test Procedure Option for All Terrain Vehicles (published April 26, 2007)
- Fact Sheet: Extension of Temporary Exhaust Emission Test Procedure Option for All Terrain Vehicles | PDF Version (2 pp, 90K, EPA420-F-07-022, April 2007)
- Direct Final Rule | PDF Version (6 pp, 133K, published April 26, 2007)
- Notice of Proposed Rulemaking | PDF Version (4 pp, 114K, published April 26, 2007)
- Final 2005 Technical Amendments: Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments (published July 13, 2005)
- Fact Sheet: Regulatory Announcement: Changed Test Procedures for Nonroad Engines and Heavy-Duty Highway Engines | PDF Version (4 pp, 134K, EPA420-F-05-036, July 2005)
- Regulation | PDF Version the entire document (194 pp, 7.4MB)
or:
- Pages 40419-40462 Preamble and 40 CFR Parts 85-94 (PDF) (43 pp, 762K)
- Pages 40462-40516 40 CFR Parts 1039, 1048, 1051, and 1068 (PDF) (55 pp, 986K)
- Pages 40516-40612 40 CFR Part 1065 (PDF) (97 pp, 8.6MB)
- Technical Support Document and Summary & Analysis of Comments (PDF) (115 pp, 1.7MB, EPA420-R-05-008, June 2005)
- See Proposed Technical Ammendments for the proposed rule, fact sheet, and technical support documents (published September 10, 2004)
- 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 (PDF) (7 pp, 409K, EPA420-F-02-037)
- Regulation | PDF Version (207 pp, 1.1MB, November 8, 2002)
- Summary and Analysis of Comments: Control of Emissions from Unregulated Nonroad Engines (PDF) (319 pp, 462K, EPA420-R-02-023, September 2002)
- Final Regulatory Support Document: Control of Emissions from Unregulated Nonroad Engines (PDF) (687 pp, 2.5MB, EPA420-R-02-022, September 2002)
- Environmental Impacts of Newly Regulated Nonroad Engines (PDF) (5 pp, 24K, EPA420-F-02-033, September 2002)
- Frequently Asked Questions from ATV Riders (PDF) (4 pp, 400K, EPA420-F-02-038, September 2002)
- Frequently Asked Questions from Off-Highway Motorcycle Riders (PDF) (5 pp, 402K, EPA420-F-02-039, September 2002)
- Frequently Asked Questions: Emission Exemption for Racing Motorcycles and Other Competition Vehicles (PDF) (5 pp, 400K, EPA420-F-02-045, September 2002)
- Frequently Asked Questions from Snowmobile Owners (PDF) (4 pp, 400K, EPA420-F-02-040, September 2002)
- How to Maintain or Rebuild Engines Certified to EPA Standards (PDF) (6 pp, 407K, EPA420-F-02-035, September 2002)
- Plain-Language Format of Emission Regulations for Nonroad Engines (PDF) (6 pp, 405K, EPA420-F-02-046, September 2002)
- Docket index (PDF) (141 pp, 689K, September. 2002)
- Other related documents regarding the final rule are available at: Final Rule for Cleaner Large Industrial Spark-Ignition Engines, Recreational Marine Diesel Engines, and Recreational Vehicles
- See Proposed Emission Standards for the proposed rule, supporting documents, advance notice and findings.
Certification and Compliance Guidance
- Certification and Compliance Guidance and References for 2006 and Later Model Year ATVs/Off-highway Motorcycles Certification and Compliance Program
- Guidance Documents:
- Major Steps of Certification and Compliance for 2006 and Later Model Years All-terrain Vehicles and Off-Highway Motorcycles (Draft) (PDF) (18 pp, 222K, July 2004)
- Recommend Application Format for Certification of Off-highway Motorcycles and All-terrain Vehicles (Draft) (PDF) (14 pp, 219K, July 2004)
- List of Questions for New Manufacturers (Draft) (PDF) (2 pp, 18K, July 2004)
- Request For EPA Exemption of Competition Recreation Vehicles (Draft) (PDF) (1 pg, 40K, October 2004)
- Manufacturer Self Checklist for Application of Certification (PDF) (1 pg, 182K, March 2005)
- Presentations:
- Applicable Regulations for Off-highway Motorcycles and ATVs (PDF) (76 pp, 550K, July 2004)
- Major Steps of Certification and Compliance for 2006 and Later Model Years All-terrain Vehicles and Off-Highway Motorcycles (Draft) (PDF) (16 pp, 47K, July 2004)
- Recommend Application Format for Certification of Off-highway Motorcycles and All-terrain Vehicles (Draft) (PDF) (28 pp, 46K, July 2004)
- Key Technical Amendments to ATV and Off-highway Motorcycle Regulations (PDF) (1 pg, 12K, July 2004)
- EPA Verify/CDX Information System (PDF) (1 pg, 13K, March 2005)
- EPA Verify Demo (PDF) (14 pp, 136K, March 2005)
- Guidance Documents:
Verify/CDX
- Verify/CDX-Interactive Online Compliance Information System is EPA's interactive site for submitting certification data and files.
Go to the Verify Web site.
- Request for Manufacturer Code Procedures (PDF) (24 pp, 1.9MB, February 28, 2006)
- CDX User Pre-registration Instructions (PDF) (2 pp, 27K, February 28, 2006)
- CDX User Pre-registration Form (XLS) (2 pp, 17K, February 28, 2006)
- Draft CDX User’s Guide (PDF) (157 pp, 9.9MB, February 28, 2006)
- Subscribe to the Verify listserv to get updated information on Verify.
- For further information regarding the ATVs/Off-highway Motorcycles Certification and Compliance information, e-mail: MC-Cert (MC-cert@epa.gov).
Related Links
- 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 utility Vehicles
- Annual Certification Test Results and Data
For more information, please email EPA's Assessment and Standards Division (asdinfo@epa.gov) or call the Assessment and Standards Division voicemail at 734-214-4636.