Federal Register #2026-23026

EPA proposes withdrawal of Detroit-area sulfur dioxide implementation plan

EPA proposes a regulatory change affecting sulfur dioxide air-quality requirements in the Detroit area. - Government buyer: U.S. Environmental Protection Agency (EPA), Region 5. - Proposed action: Withdraw the Federal Implementation Plan (FIP) for meeting the sulfur dioxide air-quality standard in the Detroit area and remove 40 CFR 52.1189. - EPA says Michigan’s approved State Implementation Plan contains equivalent, enforceable requirements, making the federal plan duplicative. - This is not a procurement opportunity; no products, services, quantities, OEMs, or vendors are identified.

Description

The EPA proposes to withdraw the 2022 Federal Implementation Plan (FIP) for attaining the 2010 1-hour primary sulfur dioxide standard in the Detroit area. EPA approved Michigan’s revised State Implementation Plan in 2025, which includes emission limits and requirements equivalent to those in the FIP, making the FIP duplicative. The proposed action would remove 40 CFR 52.1189 and is taken under section 110 of the Clean Air Act. Comments are due December 28, 2026.

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