Data / Federal rules / 2025-20494
Air Plan Approval; Michigan; Infrastructure SIP Requirements for the 2015 Ozone NAAQS; Michigan State Board Requirements
The Environmental Protection Agency published this proposed rule in the Federal Register on November 20, 2025. Comments closed on December 22, 2025.
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What the agency says
The Environmental Protection Agency (EPA) is approving an element of a State Implementation Plan (SIP) submission from Michigan regarding the infrastructure requirements of section 110 of the Clean Air Act (CAA) for the 2015 ozone National Ambient Air Quality Standards (NAAQS). The infrastructure requirements ensure that the structural components of each State's air quality management program are adequate to meet CAA requirements. This action pertains to CAA section 110(a)(2)(E)(ii).
Key facts
- Document number
- 2025-20494
- Type
- Proposed rule
- Action
- Proposed rule
- Agency
- Environmental Protection Agency
- Published
- November 20, 2025
- Comments due
- December 22, 2025
- Dates
- Comments must be received on or before December 22, 2025.
- Docket
- EPA-R05-OAR-2019-0215; FRL-13010-01-R5
- Code of Federal Regulations
- 40 CFR 52
- Pages
- 2
Other documents from the Environmental Protection Agency
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Read from the Federal Register API, last updated 2026-10-24. 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.