Open for CommentEPA· Environmental Protection AgencyProposed Rule

Proposed approval of the Illinois Regional Haze Plan for the Second Implementation Period and Infrastructure Approvals for the 2012 PM2.5 and 2015 Ozone NAAQS

Introduced February 27, 2026Comment period ends March 31, 2026View on regulations.gov ↗
💬 Closes in 12 daysDeadline: Mar 31, 2026

What This Means

The EPA is reviewing Illinois' plan for reducing air pollution and improving visibility in areas affected by haze, along with approving the state's approach to meeting federal clean air standards for fine particle pollution and ozone through 2030. This affects Illinois residents, businesses that emit air pollutants, and power plants, as the state will need to implement specific measures to reduce harmful emissions. The approval matters because it determines what pollution control requirements Illinois must follow and helps ensure that people in the state breathe cleaner air by holding industries accountable for their emissions.

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Details

TypeFederal Regulation
AgencyEPA · Environmental Protection Agency
Regulations.gov IDEPA-R05-OAR-2017-0583-0012
IntroducedFebruary 27, 2026
Comment DeadlineMarch 31, 2026

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