Data / Federal rules / 2024-29137

Findings of Failure To Attain and Reclassification of Areas in Illinois, Indiana, Michigan, Ohio, and Wisconsin as Serious for the 2015 Ozone National Ambient Air Quality Standards

The Environmental Protection Agency published this final rule in the Federal Register on December 17, 2024. It took effect on January 16, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is determining that the Allegan County, MI; Berrien County, MI; Chicago, IL-IN-WI; Cleveland, OH; Milwaukee, WI; Muskegon County, MI; Sheboygan County, WI; and Illinois portion of the St. Louis, MO-IL areas failed to attain the 2015 ozone National Ambient Air Quality Standards (NAAQS) by the applicable attainment date. The effect of failing to attain by the applicable attainment date is that the areas will be reclassified by operation of law to "Serious" nonattainment for the 2015 ozone NAAQS on January 16, 2025, the effective date of this final rule. This action fulfills EPA's obligation under the Clean Air Act (CAA) to determine whether ozone nonattainment areas attained the NAAQS by the attainment date and to publish a document in the Federal Register identifying each area that is determined as having failed to attain and identifying the reclassification.

Key facts

Document number: 2024-29137
Type: Final rule
Action: Final determination
Agency: Environmental Protection Agency
Published: December 17, 2024
Takes effect: January 16, 2025
Dates: This final rule is effective on January 16, 2025.
Docket: EPA-R05-OAR-2024-0546; FRL-12410-01-R5
Code of Federal Regulations: 40 CFR 81
Topics: Administrative practice and procedure; Air pollution control; Environmental protection; Intergovernmental relations; Nitrogen dioxide; Ozone; Reporting and recordkeeping requirements; Volatile organic compounds
Pages: 10

The document on federalregister.gov PDF

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Everything from the Environmental Protection Agency · Rules on administrative practice and procedure · Rules on air pollution control · Rules on environmental protection · Published in December 2024

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