Home / Agencies / EPA / 2026-16001
Proposed Rule

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

Agency
EPA
Document Number
2026-16001
Published
August 6, 2026
Effective Date
-

Abstract

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).

Federal Register Source

This document is published by the Office of the Federal Register, National Archives and Records Administration. Access the full regulatory text, preamble, and docket comments below.

View Full Text on FederalRegister.gov →

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Frequently Asked Questions

What is the 2026-16001 Federal Register document?
Document 2026-16001 is a Proposed Rule published by the Environmental Protection Agency in the Federal Register on August 6, 2026. 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). View the original at https://www.federalregister.gov/documents/2026/08/06/2026-16001/air-plan-approval-illinois-2015-ozone-moderate-and-serious-reasonably-available-control-technology.
Is document 2026-16001 an economically significant rule?
No. Document 2026-16001 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.

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