Data / Federal rules / 2026-04649
Air Plan Approval; North Dakota; Approval of Air Quality Implementation Plans; Regional Haze State Implementation Plan; Regional Haze Five Year Progress Report and Nitrogen Oxides Best Available Retrofit Technology Determination for Coal Creek Station for the First Implementation Period
The Environmental Protection Agency published this final rule in the Federal Register on March 10, 2026. It took effect on April 9, 2026.
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What the agency says
The Environmental Protection Agency (EPA) is approving certain portions of State Implementation Plan (SIP) revisions submitted by the State of North Dakota (North Dakota) on January 12, 2015, and August 11, 2022, to address regional haze. Specifically, the EPA is approving North Dakota's nitrogen oxides (NO<INF>X</INF>) Best Available Retrofit Technology (BART) determination for Coal Creek Station power plant (Coal Creek) for the first implementation period of the regional haze program and North Dakota's five-year regional haze progress report. This action addresses the United States Court of Appeals for the Eighth Circuit's September 23, 2013, vacatur and remand of the portion of EPA's 2012 Regional Haze Federal Implementation Plan (FIP) that promulgated a BART emission limit of 0.13 pounds per million BTU (lb/ MMBtu) NO<INF>X</INF> (30-day rolling average) for Coal Creek. The EPA is taking this action pursuant to the Clean Air Act (CAA).
Key facts
- Document number
- 2026-04649
- Type
- Final rule
- Action
- Final rule
- Agency
- Environmental Protection Agency
- Published
- March 10, 2026
- Takes effect
- April 9, 2026
- Dates
- This rule is effective on April 9, 2026.
- Docket
- EPA-R08-OAR-2023-0641; FRL-12157-02-R8
- Code of Federal Regulations
- 40 CFR 52
- Topics
- Air pollution control; Carbon monoxide; Environmental protection; Greenhouse gases; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; Volatile organic compounds
- Pages
- 4
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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.