An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Vehicle and Engine Certification

Account Setup for Engines and Vehicles Compliance Information System (EV-CIS)

The process for registering for EV-CIS accounts has changed.

For more information, please review the links below.Free Viewers

User Registration and Role Sponsorship Demonstration Webinar (January 2020)

Electronic Role Sponsorship User Guide (March 2020)

Sponsor Letter for the Company Approving Official (CAO) (DOCX)(1 pg, 15 K, January 2021)