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Data / Federal rules / 2025-06618

Air Plan Approval; Wisconsin; Revised Format for Materials Incorporated by Reference

The Environmental Protection Agency published this final rule in the Federal Register on April 22, 2025. It took effect on April 22, 2025.

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What the agency says

The Environmental Protection Agency (EPA) is revising the format for materials that are made part of the Wisconsin State Implementation Plan (SIP) through the process of incorporation by reference (IBR). The regulations and materials affected by this format change have all been previously submitted by Wisconsin and approved by EPA as part of the SIP.

Key facts

Document number
2025-06618
Type
Final rule
Action
Final rule; administrative change
Agency
Environmental Protection Agency
Published
April 22, 2025
Takes effect
April 22, 2025
Dates
This action is effective on April 22, 2025.
Docket
EPA-R05-OAR-2025-0059; FRL-12610-01-R5
Code of Federal Regulations
40 CFR 52
Topics
Air pollution control; Carbon oxides; Environmental protection; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen oxides; Ozone; Particulate matter; Reporting and recordkeeping requirements; Volatile organic compounds
Pages
27

The document on federalregister.gov PDF

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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.