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 This website is no longer updated and links to external websites and some internal pages may not work.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

Gasoline Standards

Relaxation of Summer Gasoline Volatility Standard for Mecklenburg and Gaston counties, North Carolina Direct final action

On this page:

Rule Summary

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

The Environmental Protection Agency (EPA) issued a direct final rule on August 17, 2015 (80 FR 49164) to to relax the federal volatility (RVP) standard applicable to gasoline supplied to Mecklenburg and Gaston counties, North Carolina from 7.8 pounds per square inch (psi) to 9.0 psi during the summer ozone season. The direct final rule is effective as of October 16, 2015.

Additional Resources

Rulemaking and supporting documents