Data / Federal rules / 2026-06397

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

The Environmental Protection Agency published this final rule in the Federal Register on April 2, 2026. It took effect on April 2, 2026.

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What the agency says

The Environmental Protection Agency (EPA) finds that 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, (hereafter referred to as "Muskingum River area") is attaining the 2010 SO<INF>2</INF> National Ambient Air Quality Standard (NAAQS). The EPA is acting in accordance with Ohio's March 31, 2025, request to redesignate the Muskingum River area from nonattainment to attainment for the 2010 SO<INF>2</INF> NAAQS because the request meets the statutory requirements for redesignation under the Clean Air Act (CAA). The EPA is also approving Ohio's maintenance plan for the area and Ohio's Director's Final Findings and Orders (DFFOs) issued to Globe Metallurgical, Inc. (Globe Metallurgical) on March 26, 2025, as part of Ohio's federally enforceable State Implementation plan (SIP).

Key facts

Document number: 2026-06397
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: April 2, 2026
Takes effect: April 2, 2026
Dates: This final rule is effective on April 2, 2026.
Docket: EPA-R05-OAR-2025-0165; FRL-12974-02-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; Wilderness areas
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 April 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.