# Air Plan Approval; West Virginia; 2021 Amendments to West Virginia's Ambient Air Quality Standards
> **Rule** · Final rule. · Published 2022-11-10 · Effective 2022-12-12 · 87 FR 67789
## Document
- **Document number:** 2022-24339
- **Category:** air-emissions
- **Federal Register citation:** 87 FR 67789
- **CFR reference:** 40 CFR 52
- **Publication date:** 2022-11-10
- **Effective date:** 2022-12-12
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2022-0528
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of West Virginia. The revision updates West Virginia's incorporation by reference 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).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/11/10/2022-24339/air-plan-approval-west-virginia-2021-amendments-to-west-virginias-ambient-air-quality-standards)
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