Data / Federal rules / 2025-19278

Air Plan Approval; Ohio; Muskingum River 2010 Sulfur Dioxide Redesignation and Maintenance Plan

The Environmental Protection Agency published this proposed rule in the Federal Register on October 2, 2025. Comments closed on November 3, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to redesignate the Muskingum River sulfur dioxide (SO<INF>2</INF>) nonattainment area, located in Center Township in Morgan County and Waterford Township in Washington County, Ohio, to attainment for the 2010 SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS). EPA is also proposing to approve Ohio's maintenance plan for the area and Ohio's Director's Final Findings and Orders (DFFOs), issued March 26, 2025. Ohio submitted the request for approval on March 31, 2025.

Key facts

Document number: 2025-19278
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: October 2, 2025
Comments due: November 3, 2025
Dates: Comments must be received on or before November 3, 2025.
Docket: EPA-R05-OAR-2025-0165; FRL-12974-01-R5
Code of Federal Regulations: 40 CFR 52; 40 CFR 81
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Reporting and recordkeeping requirements; Sulfur oxides
Pages: 8

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 October 2025

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.