Data / Federal rules / 2026-16986

Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas

The Environmental Protection Agency published this final rule in the Federal Register on August 20, 2026. It took effect on September 21, 2026.

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What the agency says

The U.S. Environmental Protection Agency (EPA) is approving portions of Wisconsin's 2015 ozone National Ambient Air Quality Standard (NAAQS or standard) Moderate nonattainment area State Implementation Plan (SIP) submission for the Wisconsin portion of the Chicago, Illinois-Indiana-Wisconsin area (Kenosha County), the Milwaukee, Wisconsin area, and the Sheboygan County, Wisconsin area. The elements of the Moderate SIP submissions include the reasonable further progress (RFP) demonstration and the associated motor vehicle emissions budgets (Budgets) for 2023, the motor vehicle inspection and maintenance (I/M) program, and the nonattainment new source review (NNSR) program. The EPA is also approving the base year emissions inventory as satisfying previous Marginal area requirements for these areas. The EPA is finding adequate and approving the Budgets for these areas. The EPA proposed to approve this action on April 2, 2026, and received no adverse comments.

Key facts

Document number: 2026-16986
Type: Final rule
Action: Final rule
Agency: Environmental Protection Agency
Published: August 20, 2026
Takes effect: September 21, 2026
Dates: This final rule is effective on September 21, 2026.
Docket: EPA-R05-OAR-2025-0169; EPA-R05-OAR-2025-0170; EPA-R05-OAR-2025-0171; FRL-13164-02-R5
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Environmental protection; Incorporation by reference; Intergovernmental relations; Nitrogen oxides; Ozone; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
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 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.