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Energy & environment · 20/05/2022Updated: 10/17/2026 · 1 min read

Air Plan Approval; Illinois; Redesignation of the Illinois Portion of the Chicago-Naperville, Illinois-Indiana-Wisconsin Area to Attainment of the 2008 Ozone Standard

Summary

The Environmental Protection Agency (EPA) has approved Illinois' request to redesignate the Illinois portion of the Chicago-Naperville, IL-IN-WI area to attainment of the 2008 ozone National Ambient Air Quality Standard (NAAQS). The approval is based on the state's plan to maintain the 2008 ozone NAAQS through 2035.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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Energy & environment · 5/29/2026

Air Plan Approval; Michigan; Determination of Attainment by the Attainment Date for the 2015 Ozone Standards

The Environmental Protection Agency (EPA) is proposing to determine that the Detroit, Michigan nonattainment area attained the 2015 ozone National Ambient Air Quality Standards by the applicable attainment date, relying on an exceptional events request submitted by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) on February 19, 2026.

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Energy & environment · 5/29/2026

Air Plan Approval; Indiana; Keystone VOC RACT Alternative Control

The Environmental Protection Agency (EPA) is approving revisions to the volatile organic compound (VOC) requirements for Keystone Automotives Industries dba Saturn Wheel (Keystone) in Indiana, following a Commissioner's Order submitted by the Indiana Department of Environmental Management (IDEM). The EPA proposed approval on February 27, 2026, after receiving no adverse comments.

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