Data / Federal rules / 2024-22730

Air Plan Approval; Illinois; NAAQS Update

The Environmental Protection Agency published this final rule in the Federal Register on October 3, 2024. It took effect on December 2, 2024. Comments closed on November 4, 2024.

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What the agency says

The Environmental Protection Agency (EPA) is approving State Implementation Plan (SIP) revisions submitted by the Illinois Environmental Protection Agency (IEPA or Illinois). The revisions, submitted on February 26, 2024, and July 8, 2024, incorporate amendments to the Illinois air pollution control rules entitled "Part 243--Ambient Air Quality Standards" in response to EPA rulemakings and changes to the National Ambient Air Quality Standards (NAAQS) that EPA adopted in 2022 and 2023.

Key facts

Document number: 2024-22730
Type: Final rule
Action: Direct final rule
Agency: Environmental Protection Agency
Published: October 3, 2024
Takes effect: December 2, 2024
Comments due: November 4, 2024
Dates: This direct final rule will be effective December 2, 2024, unless EPA receives adverse comments by November 4, 2024. If adverse comments are received, EPA will publish a timely withdrawal of the direct final rule in the Federal Register informing the public that the rule will not take effect.
Docket: EPA-R05-OAR-2024-0105; EPA-R05-OAR-2024-0320; FRL-12240-02-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Ozone; Particulate matter; Reporting and recordkeeping requirements
Pages: 3

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 October 2024

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.