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 This website is no longer updated and links to external websites and some internal pages may not work.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

Fuels Registration, Reporting, and Compliance Help

Test Method Spreadsheet and Instructions for Olefin Content in Gasoline

This spreadsheet can be used by test facilities to self-qualify a Voluntary Consensus-based Standards Body (VCSB) test method as part of the Performance-based Measurement System (PBMS).