Removal of the Federal Reformulated Gasoline Program From the Kentucky Portion of the Louisville Area
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register March 2, 2026. Document 2026-04127. Updated Nov. 14, 2026.
- What it does
The U.S. Environmental Protection Agency (EPA) is announcing the approval of the petition by the Commonwealth of Kentucky ("Kentucky" or "the Commonwealth") to opt out of the reformulated gasoline (RFG) program and remove the requirement to sell RFG in Jefferson County and parts of Bullitt and Oldham Counties (the "Kentucky portion of the Louisville Area"), which are part of the Louisville Moderate nonattainment area for the 2015 ozone National Ambient Air Quality Standard (NAAQS) and the maintenance area for the 1997 ozone NAAQS. Specifically, by letter dated February 26, 2026, to the Governor of Kentucky, the EPA has approved the Commonwealth's petition and set an effective date for the opt-out from the RFG program as May 27, 2026. The EPA has determined that this removal of the RFG program for the Kentucky portion of the Louisville Area is consistent with the applicable provisions of the Clean Air Act (CAA) and the EPA's regulations.
The Environmental Protection Agency's summary, as published in the Federal Register.
- What changed in the regulation
1 part of Title 40 of the Code of Federal Regulations:
Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).
- Compared with
The Environmental Protection Agency has published 248 final rules in 2026 so far, compared with 263 in all of 2025.
Counted by the Tribune from Federal Register records since Jan. 1, 2025.
- What happens next and when
The effective date for removal of the Kentucky portion of the Louisville Area from the RFG program is May 27, 2026. Any petition for review shall be filed in the appropriate United States Court of Appeals no later than May 1, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-04127 |
|---|---|
| Action | Notification of final action on petition. |
| Agencies | Environmental Protection Agency |
| Published | March 2, 2026 |
| Effective date | May 27, 2026 |
| Docket | EPA-HQ-OAR-2025-2039 |
Source: the Federal Register (public domain). The document in the Federal Register