Air Plan Approval; Colorado; RACT Requirements for the 2008 8-Hour Ozone Standard for the Denver Metro/North Front Range Nonattainment Area
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register June 23, 2026. Document 2026-12543. Updated Nov. 9, 2026.
- What it does
The U.S. Environmental Protection Agency (EPA) is proposing to approve portions of Colorado State Implementation Plan (SIP) submittals under the Clean Air Act (CAA) that address SIP obligations related to Reasonably Available Control Technology (RACT) requirements for the 2008 ozone National Ambient Air Quality Standards (NAAQS) for the Denver-Boulder-Greeley-Ft. Collins-Loveland, Colorado ozone nonattainment area. The EPA is proposing approval of portions of the RACT SIP submittals that address reporting requirements for certain source categories and reorganize certain state air pollution regulations. The EPA is also proposing to find that the State has addressed the EPA's prior limited disapproval.
The Environmental Protection Agency's summary, as published in the Federal Register.
- What it would change
1 part of Title 40 of the Code of Federal Regulations:
- What happens next and when
Written comments must be received on or before July 23, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-12543 |
|---|---|
| Action | Proposed rule. |
| Agencies | Environmental Protection Agency |
| Published | June 23, 2026 |
| Comments close | July 23, 2026 |
| Docket | EPA-R08-OAR-2024-0225 |
Source: the Federal Register (public domain). The document in the Federal Register