Importing Vehicles and Engines into the U.S.
How to obtain a copy of a Certificate of Conformity for a heavy-duty engine or a nonroad engine
A Certificate of Conformity is the document that EPA issues to an engine manufacturer to certify that an engine class conforms to EPA requirements. Every class of heavy-duty engines/vehicles and nonroad engines introduced into commerce in the U. S. must have a Certificate of Conformity, and they are valid for only one model year of production.
If you are exporting a heavy-duty highway engine or nonroad engine from the U.S. to another country, they may require certification. A Certificate of Conformity and Certification Information will contain the emission standards the heavy-duty on-highway engine or nonroad engine was certified to.
The U.S. EPA maintains a certification data public web site for heavy-duty highway engines and nonroad engines/equipment. You will need to know the Engine Family number (found on the emission label) to obtain this information. You can access test data for heavy-duty highway engines or nonroad engines for 1998 to the present on EPA’s Web site as follows:
- Go to http://www.epa.gov/otaq/certdata.htm.
- Choose the type of engine.
- Choose the model year.
- Depending upon the model the information will be in either Excel spreadsheet and/or File Maker (in File Maker search by the manufacturer or engine family name).
To request a Certificate of Conformity or test data for a heavy-duty highway or nonroad engine that you were unable to find on the web site, please send the following information to EPA’s Imports Hotline at Imports@epa.gov, Fax: 734-214-4676; phone:734-214-4100.
- Model year of engine.
- Type of engine (e.g., nonroad gasoline or diesel, heavy-duty highway gasoline or diesel).
- Manufacturer.
- Engine Family # (11 characters using both numbers and letters – printed on the emission label, which is located on the engine or in the engine compartment of the equipment).
- Your name.
- Contact information (address, email address, or fax number where you want EPA to send the Certificate of Conformity).