Data / Federal rules / 2026-02842

Air Plan Approval; Illinois; Moderate Attainment Plan Elements for the Chicago and Metro East Areas for the 2015 Ozone Standard

The Environmental Protection Agency published this proposed rule in the Federal Register on February 12, 2026. Comments closed on March 16, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is proposing to approve portions of Illinois' 2015 ozone National Ambient Air Quality Standard (NAAQS or standard) Moderate nonattainment area State Implementation Plan (SIP) submission for the Chicago and the Metro East St. Louis areas. The portions of the SIP submission that the EPA is proposing to approve are the reasonable further progress (RFP) demonstration including the associated motor vehicle emissions budgets for 2023, the motor vehicle inspection and maintenance (I/M) program, the nonattainment new source review (NNSR) program, and the updated 2017 base year emissions inventories. The EPA is proposing to approve these portions of the State's SIP submission pursuant to section 110 and part D of the Clean Air Act (CAA), and the EPA's regulations. The EPA is also initiating the adequacy process for the 2023 motor vehicle emissions budgets (budgets) for the Chicago and Metro East St. Louis Moderate ozone nonattainment RFP demonstration included in this SIP submission.

Key facts

Document number: 2026-02842
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: February 12, 2026
Comments due: March 16, 2026
Dates: Comments must be received on or before March 16, 2026.
Docket: EPA-R05-OAR-2024-0617; EPA-R05-OAR-2024-0618; FRL-13163-01-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen dioxide; Ozone; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 8

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 February 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.