Data / Federal rules / 2026-16001

Air Plan Approval; Illinois; 2015 Ozone Moderate and Serious Reasonably Available Control Technology Update

The Environmental Protection Agency published this proposed rule in the Federal Register on August 6, 2026. Comments closed on September 8, 2026.

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What the agency says

The U.S. Environmental Protection Agency (EPA) is proposing to approve revisions to 35 Illinois Administrative Code (IAC) parts 217, 218, and 219 into the Illinois State Implementation Plan (SIP). The Illinois Environmental Protection Agency (Illinois or Illinois EPA) submitted these revisions on December 18, 2024, and May 12, 2025, supplemented their submittal on August 13, 2025, for Moderate Reasonably Available Control Technology (RACT). The EPA is proposing to approve 35 IAC parts 217, 218, and 219 as satisfying the Moderate Volatile Organic Compound (VOC) RACT and NO<INF>X</INF> RACT requirements as well as Serious NO<INF>X</INF> RACT requirements for the Chicago, IL (Cook County, DuPage County, Grundy County, Kane County, Kendall County, Lake County, McHenry County, and Will County) and Metro-East St. Louis (Madison County, Monroe County, and St. Clair County) nonattainment areas under the 2015 ozone National Ambient Air Quality Standard (NAAQS or standard).

Key facts

Document number: 2026-16001
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: August 6, 2026
Comments due: September 8, 2026
Dates: Comments must be received on or before September 8, 2026.
Docket: EPA-R05-OAR-2024-0617; EPA-R05-OAR-2024-0618; EPA-R05-OAR-2025-0259; FRL-13135-01-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Ozone; Volatile organic compounds
Pages: 4

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 August 2026

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.