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.

Gasoline Standards

Removal of the RFG Program from the Northern Kentucky Area of the Cincinnati-Hamilton Ozone Maintenance Area

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.

On April 18, 2017, Kentucky’s Energy and Environment Cabinet submitted a petition to EPA to opt out of the federal RFG program in the Northern Kentucky Area of the Cincinnati-Hamilton maintenance area for the 2008 ozone NAAQS.  Kentucky also submitted a SIP revision request to EPA on September 13, 2017 that included a revision to the maintenance plan for the area and a noninterference demonstration regarding the removal of federal RFG in the Northern Kentucky Area.  EPA’s Region 4 issued a final rule that approved Kentucky’s revised maintenance that removed federal RFG on April 2, 2018 (63 FR 13872).  Region 4’s final rule that approved the revised maintenance plan became effective upon publication, April 2, 2018.

Subsequently EPA approved Kentucky’s petition to opt-out of the federal RFG program in the Northern Kentucky Area.  The Northern Kentucky Area is not a “covered area” in the federal RFG program as of July 1, 2018.  As of July 1, 2018, there is no longer a requirement to sell federal RFG in the Northern Kentucky Area. This effective date applies to retailers, wholesale purchaser-consumers, refiners, importers, and distributors.​

Additional Resources