Air Plan Approval; West Virginia; 2024 Amendments to West Virginia's Ambient Air Quality Standards
air-emissions · Rule · Published 2025-09-25 · Effective 2025-10-27 · VA · 90 FR 46063
Document
Document number
2025-18611
Federal Register citation
90 FR 46063
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2025-09-25
Effective date
2025-10-27
State
VA
EPA docket
EPA-R03-OAR-2024-0581
Abstract
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).