Data / Federal rules / 2026-04851
Air Plan Approval; Michigan; Clean Data Determination for the Berrien, MI and Muskegon, MI Areas for the 2015 Ozone Standards
The Environmental Protection Agency published this proposed rule in the Federal Register on March 12, 2026. Comments closed on April 13, 2026.
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What the agency says
The Environmental Protection Agency (EPA) is proposing to determine under the Clean Air Act (CAA) that the Berrien, Michigan and Muskegon, Michigan areas have attained the 2015 ozone National Ambient Air Quality Standards (NAAQS or standards). This determination, often referred to as a clean data determination, is based upon complete, quality-assured, and certified ambient air monitoring data for the 2023-2025 design value period showing that the areas achieved attainment of the 2015 ozone NAAQS. This clean data determination also relies upon the Michigan Department of Environment, Great Lakes, and Energy's (EGLE's) exceptional events requests submitted to the EPA on December 26, 2025, and concurred upon by the EPA on January 12, 2026. As a result of this determination, the EPA is proposing to suspend the requirements for the Berrien and Muskegon areas to submit attainment demonstrations and associated Reasonably Available Control Measures (RACM), Reasonable Further Progress (RFP) plans, contingency measures for failure to attain or make reasonable progress, and other planning State Implementation Plans (SIPs) related to attainment of the 2015 ozone NAAQS, for as long as the areas continue to attain the 2015 ozone NAAQS.
Key facts
- Document number
- 2026-04851
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Environmental Protection Agency
- Published
- March 12, 2026
- Comments due
- April 13, 2026
- Dates
- Comments must be received on or before April 13, 2026.
- Docket
- EPA-R05-OAR-2026-1354; FRL-13264-01-R5
- Code of Federal Regulations
- 40 CFR 52
- Topics
- Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Ozone; Reporting and recordkeeping requirements; Volatile organic compounds
- Pages
- 4
Other documents from the Environmental Protection Agency
Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in March 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.