Air Plan Approval; OR; Klamath Falls PM2.5 Redesignation to Attainment and Maintenance Plan

What it does

The Environmental Protection Agency (EPA) proposes to approve an August 20, 2024 request by the Oregon Department of Environmental Quality (Oregon) to revise the attainment plan for the Klamath Falls, Oregon, nonattainment area; redesignate the Klamath Falls nonattainment area to attainment for the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) National Ambient Air Quality Standard (NAAQS); and approve into the Oregon state implementation plan (SIP) a maintenance plan for the area that demonstrates continued attainment through 2037. This proposed rulemaking includes approving the motor vehicle emission budget for the area and approving updated state rules and the Klamath County Clean Air Ordinance, to be incorporated by reference. EPA proposes these actions pursuant to the Clean Air Act (CAA or the Act).

The Environmental Protection Agency's summary, as published in the Federal Register.

What it would change

2 parts of Title 40 of the Code of Federal Regulations:

40 CFR 52, 40 CFR 81

What happens next and when

Comments must be received on or before April 3, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket EPA-R10-OAR-2025-0052 on Regulations.gov
• Title 40 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register