An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Final Rule for Control of Hazardous Air Pollutants from Mobile Sources

Rule Summary

The Control of Hazardous Air Pollutants From Mobile Sources final rule (also known as the Mobile Source Air Toxics rule or MSAT2) was published on February 26, 2007. This rule requires that refiners and importers produce gasoline that has an annual average benzene content of 0.62 volume percent (vol%) or less beginning in 2011. Revisions to the rule were published on October 16, 2008.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Additional Resources

Fact Sheets