Data / Federal rules / 2025-11257

Air Plan Approval; Michigan; Second Period Regional Haze Plan

The Environmental Protection Agency published this proposed rule in the Federal Register on June 18, 2025. Comments closed on July 18, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve the Regional Haze State Implementation Plan (SIP) revision submitted by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) on August 23, 2021, and supplemented on April 3, 2025, as satisfying applicable requirements under the Clean Air Act (CAA) and EPA's Regional Haze Rule (RHR) for the program's second implementation period. EGLE's SIP submission addresses the requirement that States must periodically revise their long-term strategies for making reasonable progress towards the national goal of preventing any future, and remedying any existing, anthropogenic impairment of visibility, including regional haze, in mandatory Class I Federal areas. The SIP submission also addresses other applicable requirements for the second implementation period of the regional haze program. EPA is taking this action pursuant to sections 110 and 169A of the CAA.

Key facts

Document number: 2025-11257
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: June 18, 2025
Comments due: July 18, 2025
Dates: Comments must be received on or before July 18, 2025.
Docket: EPA-R05-OAR-2021-0577; FRL-12588-01-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Reporting and recordkeeping requirements; Sulfur oxides
Pages: 10

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 June 2025

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