Data / Federal rules / 2025-08727

Air Plan Approval; Michigan; Attainment Plan for the Detroit 2010 Sulfur Dioxide Nonattainment Area

The Environmental Protection Agency published this final rule in the Federal Register on May 19, 2025. It took effect on June 18, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is approving the State Implementation Plan (SIP) revision submitted by Michigan on December 20, 2022, and supplemented on February 21, 2023, December 14, 2023, and April 2, 2024, which amends a SIP submission previously submitted to EPA on May 31, 2016, and June 30, 2016, for attaining the 2010 sulfur dioxide (SO<INF>2</INF>) primary national ambient air quality standard (NAAQS) for the Detroit SO<INF>2</INF> nonattainment area. This action follows a prior action which found that Michigan had satisfied emission inventory and new source review (NSR) requirements for this area but had not met requirements under the Clean Air Act (CAA) for the elements that EPA is approving here. This action also follows the promulgation of the 2022 Federal Implementation Plan (FIP) for the Detroit SO<INF>2</INF> nonattainment area.

Key facts

Document number: 2025-08727
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: May 19, 2025
Takes effect: June 18, 2025
Dates: This final rule is effective on June 18, 2025.
Docket: EPA-R05-OAR-2022-0976; FRL-10788-02-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Reporting and recordkeeping requirements; Sulfur oxides
Pages: 5

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on air pollution control · Rules on environmental protection · Rules on incorporation by reference · Published in May 2025

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