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Motorcycles
This Web page provides information on controlling emissions from highway motorcycles. For information regarding off-highway motorcycles, ATVs and utility vehicles, see the Recreational Vehicles page.
For further information or assistance regarding the regulations on this page, contact: ASD Information Line by phone: 734-214-4636 or e-mail: ASD Info (asdinfo@epa.gov). For information regarding certification and compliance, contact: MC-Cert (MC-cert@epa.gov)
- Regulations
- Certification and Compliance Guidance
- Verify/CDX- Interactive Online Compliance 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
- Code of Federal Regulations for Highway Motorcycles - See the electronic Code of Federal Regulations (e-CFR) for the full text of current regulations that apply to motorcycles (published July 13, 2005):
- Motorcycle Emissions Test Procedure Adopted by World Forum for Harmonization of Vehicle Regulations
On June 30, 2005, protocols for modernizing and harmonizing the emission testing procedures for on-highway motorcycles were adopted in Geneva, Switzerland, by the World Forum for Harmonization of Vehicle Regulations. EPA welcomes this major step forward in improving motorcycle testing worldwide because it will enable more robust emission control over a wider range of motorcycle speeds and accelerations.- Global Technical Regulation from the United Nations: Report on the Development of a Global Technical Regulation Concerning Worldwide Harmonized Motorcycle Emissions Certification Procedure (WMTC) (PDF) (77 pp, 4.2MB, April 2005)
- Gearshift procedure spreadsheet (Excel, 10M) (Free Excel Viewer is available at Microsoft
) - World Forum for Harmonization of Vehicle Regulations
- 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 (also available as a PDF file, 4 pp, 134K, EPA420-F-05-036, July 2005)
- Federal Register Notice: Entire Document (also available as a PDF file, 194 pp, 7.4MB)
- Preamble and 40 CFR Parts 85-94 (PDF), pages 40419-40462 (43 pp, 762K)
- 40 CFR Parts 1039, 1048, 1051, and 1068 (PDF), pages 40462-40516 (55 pp, 986K)
- 40 CFR Part 1065 (PDF), pages 40516-40612 (97 pp, 8.6MB)
- Technical Support Document and Summary & Analysis of Comments (PDF) (115 pp, 1.7MB, EPA420-R-05-008, June 2005)
- Final Rule for Cleaner Highway Motorcycles (published January 15, 2004)
EPA adopted new emission standards for highway motorcycles on December 23, 2003. These new standards will reduce the combined hydrocarbon and nitrogen oxide emissions in the exhaust by 50 percent as well as the harmful health effects of mobile source air toxics.- Fact Sheet: Regulatory Announcement: EPA Finalizes Emission Standards for New Highway Motorcycles (PDF) (4 pp, 116K, EPA420-F-03-044, December 2003)
- Press Release (December 23, 2003)
- Federal Register Notice (also available as a PDF file, 49 pp, 404K, published January 15, 2004)
- Support Documents:
- Summary and Analysis of Comments: Control of Emissions from Highway Motorcycles (PDF) (152 pp, 644K, EPA420-R-03-016, December 2003)
- Final Regulatory Support Document: Control of Emissions from Highway Motorcycles (PDF) (215 pp, 724K, EPA420-R-03-015, December 2003)
- Frequently Asked Questions: Information for Motorcycle Owners on EPA's New Emission Standards for Highway Motorcycles (PDF), Short Versions (4 pp, 104K, EPA420-F-03-046, December 2003)
- Frequently Asked Questions: In-Depth Information for Motorcycle Owners on EPA's New Emission Standards for Highway Motorcycles (PDF), Detailed Version (10 pp, 132K, EPA420-F-03-045, December 2003)
- See Proposed Emission Standards for the proposed rule, supporting documents, and advance notice
Certification and Compliance Guidance
- Guidance Documents and References for 2006 and Later Model Year Highway Motorcycles (HMC) Certification and Compliance Program
- Guidance Documents:
- Major Steps of Certification and Compliance for 2006 and Later Model Years Highway Motorcycles (Draft) (PDF) (22 pp, 307K, March 2005)
- Recommended Application Format for Certification of Highway Motorcycles (Draft) (PDF) (11 pp, 192K, March 2005)
- List of Questions for New Manufacturers (Draft) (PDF) (2 pp, 18K, March 2005)
- Scooter Alert (PDF) (6 pp, 292K, March 2005)
- Highway Motorcycle Certification Review Sheet (PDF) (5 pp, 47K, March 2005)
- Presentations
- Highway Motorcycle: EPA Regulations and Global Activity Update (PDF) (18 pp, 745K, March 2005)
- Major Steps of Certification and Compliance for 2006 and Later Model Years Highway Motorcycles (PDF) (15 pp, 46K, March 2005)
- Recommended Application Format for Certification of Highway Motorcycles (PDF) (19 pp, 46K, March 2005)
- Technical Amendments Update (PDF) (1 pg, 11K, March 2005)
- EPA Verify/CDX Information System (PDF) (1 pg, 13K, March 2005)
- EPA Verify Demo (PDF) (14 pp, 136K, March 2005)
Verify/CDX
- Verify/CDX-Interactive Online Compliance Information System: (For using EPA interactive website to submit certification related data and files):
- 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 Listserver to get updated information on Verify.
- For further information regarding the Highway Motorcycle Certification and Compliance (HMC) information, e-mail: MC-Cert (MC-cert@epa.gov)