Data / Federal rules / 2025-18629

Air Plan Approval; Oregon; 2024 Vehicle Inspection Program Updates

The Environmental Protection Agency published this proposed rule in the Federal Register on September 25, 2025. Comments closed on October 27, 2025.

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What the agency says

The Environmental Protection Agency (EPA) proposes to approve revisions to the Oregon State Implementation Plan (SIP) submitted by the Oregon Department of Environmental Quality on April 3, 2025. The SIP revision updates rules for the Vehicle Inspection Program (VIP) which is applicable in the Portland and Medford areas, and includes a demonstration that the requested revisions will not interfere with attainment or maintenance of any national ambient air quality standard (NAAQS) or with any other applicable requirement of the Clean Air Act (CAA or Act).

Key facts

Document number: 2025-18629
Type: Proposed rule
Action: Proposed rule
Agency: Environmental Protection Agency
Published: September 25, 2025
Comments due: October 27, 2025
Dates: Comments must be received on or before October 27, 2025.
Docket: EPA-R10-OAR-2025-0181, FRL-12873-01-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: 4

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 September 2025

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.