Air Plan Approval; Michigan; Detroit 2010 Sulfur Dioxide Redesignation and Maintenance Plan

Document 2026-06396 is a Final Rule published by the Environmental Protection Agency in the Federal Register on April 2, 2026, with an effective date of April 2, 2026. The Environmental Protection Agency (EPA) is finding that the Detroit, Michigan area is attaining the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS) and is acting in accordance with a request from the Michigan Department of Environment, Great Lakes, and Energy (EGLE) to redesignate the area 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 Michigan's maintenance plan for the Detroit area. Michigan submitted the request for approval of the Detroit nonattainment area's redesignation and maintenance plan on May 5, 2025. The EPA approved Michigan's attainment plan for the Detroit area on May 19, 2025. View the original at https://www.federalregister.gov/documents/2026/04/02/2026-06396/air-plan-approval-michigan-detroit-2010-sulfur-dioxide-redesignation-and-maintenance-plan.

No. Document 2026-06396 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.