Data / Federal rules / 2025-24140
Air Plan Approval; CO; Revisions to Colorado Procedural Rules and Common Provisions Regulation
The Environmental Protection Agency published this proposed rule in the Federal Register on January 2, 2026. Comments closed on February 2, 2026.
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What the agency says
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Colorado State Implementation Plan (SIP) that were submitted by the Colorado Department of Public Health and Environment (CDPHE) on May 20, 2022. CDPHE requested EPA approval of revisions to the Colorado's Procedural Rules and Common Provisions Regulation. The revised rules include non-substantive updates to rule language that are administrative in nature and were intended to provide for general cleanup and improved readability. The EPA is proposing approval of these SIP revisions because we have determined that they are in accordance with the requirements for SIP provisions under the Clean Air Act (CAA). In the "Rules and Regulations" section of this Federal Register, we are approving these SIP revisions as a direct final rule without a prior proposed rule. If we receive no adverse comment, we will not take further action on this proposed rule.
Key facts
- Document number
- 2025-24140
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Environmental Protection Agency
- Published
- January 2, 2026
- Comments due
- February 2, 2026
- Dates
- Written comments must be received on or before February 2, 2026.
- Docket
- EPA-R08-OAR-2024-0550; FRL-13050-01-R8
- Code of Federal Regulations
- 40 CFR 52
- Pages
- 2
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Published in January 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.