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This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. 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 This website is no longer updated and links to external websites and some internal pages may not work.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

Contact Us about Vehicle and Engine Certification

Report an environmental violation

Report a Violation

Report possible violations of environmental laws and regulations.

Support Lines

For questions regarding EV-CIS, formerly Verify System, account setup, please contact:
Email: ev-cisdpc@epacdx.net
For questions regarding EV-CIS issues or to report security incidents, please contact:
Email: evcishelpdesk@epacdx.net
For questions regarding EV-CIS CDX accounts, please contact:
Email: helpdesk@epacdx.net
Phone number: 1-888-890-1995
Type of assistance: • CDX account password resets
• Updates to CDX account information

For general questions, please contact:

Email: complianceinfo@epa.gov or complete the form below.


Mailing Address for EPA EV-CIS Team

Due to COVID-19 restrictions, the mail is not being reviewed on a regular basis. Therefore, it is recommended that you email us with your inquiry so we may determine how best to assist you.

US EPA
EV-CIS Team
OAR/OTAQ/CD
2000 Traverwood Drive
Ann Arbor, MI  48105

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