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, 2017. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Gasoline Standards

Gasoline and Diesel Fuel Test Methods Additional Resources

Direct Final Rule (PDF) (1 pp, 40K)
Original Direct Final Rule (PDF) (8 pp, 85K, published December 8, 2008)

You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Fact Sheet: Original Direct Final Rule (PDF)(2 pp, 557 K, November 2008, EPA-420-F-08-036)