Data / Federal rules / 2026-10738

Air Plan Approval; ID; Update to Materials Incorporated by Reference

The Environmental Protection Agency published this final rule in the Federal Register on May 29, 2026. It took effect on May 29, 2026.

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What the agency says

The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the Idaho State Implementation Plan (SIP). The regulations affected by this update have been previously submitted by Idaho and approved by the EPA. This update affects the materials that are available for public inspection at the EPA Regional Office and the National Archives and Records Administration (NARA). In this action, the EPA is also notifying the public that we are correcting a typographical error.

Key facts

Document number: 2026-10738
Type: Final rule
Action: Final rule; administrative change
Agency: Environmental Protection Agency
Published: May 29, 2026
Takes effect: May 29, 2026
Dates: This action is effective May 29, 2026.
Docket: EPA-R10-OAR-2026-0498; FRL-13207-01-R10
Code of Federal Regulations: 40 CFR 52
Topics: Air pollution control; Carbon monoxide; Environmental protection; Incorporation by reference; Intergovernmental relations; Lead; Nitrogen dioxide; Ozone; Particulate matter; Reporting and recordkeeping requirements; Sulfur oxides; 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 carbon monoxide · Rules on environmental protection · Published in May 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.