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Nonroad Engines, Equipment, and Vehicles

Snowmobiles, Dirt Bikes, and ATVs

April 3, 2013: EPA withdrew its approval of the import and sale of over 70,000 gas-powered on- and off-road motorcycles and all-terrain vehicles because the agency believes that it received either incomplete or falsified certification information. EPA issued the vehicle certificates from 2006 to 2012 to two companies which operate as Snyder Technology, Inc. and Snyder Computer Systems, Inc. (doing business as Wildfire Motors Corporation). As a result of a lengthy investigation, the agency believes that the applications for the certificates contained fallacious information and must be voided. All vehicles imported into or manufactured in the United States are required to have certificates of conformity. For more information please see the press release.

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.

This page provides information about land-based recreational vehicles, such as snowmobiles, off-highway motorcycles (dirt bikes), and all-terrain vehicles (ATVs). Information on recreational marine engines is available on the marine spark-ignition engines page and the marine diesel engines page.


See the Electronic Code of Federal Regulations (e-CFR) for the full text of current regulations that apply to recreational vehicles:

40 CFR part 1051 Emission Standards and Certification Requirements
40 CFR Part 86, Subpart F Chassis Exhaust Emission Testing Procedures
40 CFR part 1065 Engine Exhaust Emission Test Procedures
40 CFR part 1060 Evaporative Emission Standards and Test Procedures
40 CFR part 1068 General Compliance Provisions

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Certification and Compliance

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This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
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