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The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of West Virginia. This revision updates West Virginia's incorporation by reference (IBR) of EPA's national ambient air quality standards (NAAQS) and the associated monitoring reference and equivalent methods. EPA is approving these revisions to the West Virginia SIP in accordance with the requirements of the Clean Air Act (CAA).
Published
Sep 25, 2025
Effective
Oct 27, 2025
Citation
90 FR 46063
Agencies
1
Full text not available in our database.
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EPA-R03-OAR-2024-0581
FRL-12329-02-R3
40 CFR 52