# Approval and Promulgation of Air Quality Implementation Plans; West Virginia; 2019 Amendments to West Virginia's Ambient Air Quality Standards
> **Rule** · Final rule. · Published 2020-02-25 · Effective 2020-03-26 · 85 FR 10613
## Document
- **Document number:** 2020-03153
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 10613
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-02-25
- **Effective date:** 2020-03-26
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2019-0553
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of West Virginia. This revision updates the effective date of the national ambient air quality standards (NAAQS) and the associated monitoring reference and equivalent methods for those NAAQS which West Virginia incorporates into its State regulations and the SIP. EPA is approving this revision 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/2020/02/25/2020-03153/approval-and-promulgation-of-air-quality-implementation-plans-west-virginia-2019-amendments-to-west)
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