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 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Fuels Registration, Reporting, and Compliance Help

Compliance Help Tools for Fuels Program

Searchable Help Index

Find any page within EPA's fuel program website, including tutorials, documents, and diagrams.

Frequent Questions

Browse or search the Knowledge Base for answers to frequently asked questions.

Regulations and Standards

IT Helpdesk

Find support contacts for EMTS, CDX reporting and user accounts and NAAS authentication.

Program Support Helpdesk

Find support for questions related to Fuels Program regulations and registrations.