# Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Amendments to West Virginia's Ambient Air Quality Standards
> **Rule** · Final rule. · Published 2012-09-12 · Effective 2012-10-12 · 77 FR 56125
## Document
- **Document number:** 2012-22338
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 56125
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-09-12
- **Effective date:** 2012-10-12
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2011-0958
## Abstract

EPA is approving the State Implementation Plan (SIP) revision submitted by the State of West Virginia (West Virginia) on July 8, 2011. This revision pertains to amendments of West Virginia's Legislative Rule regarding ambient air quality standards (45 CSR 8-- Ambient Air Quality Standards). These amendments incorporate by reference the National Ambient Air Quality Standards (NAAQS) in effect on June 1, 2010 for sulfur dioxide (SO<INF>2</INF>), particulate matter (PM), carbon monoxide (CO), ozone, nitrogen dioxide (NO<INF>2</INF>), and lead. This action is being taken under the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/09/12/2012-22338/approval-and-promulgation-of-air-quality-implementation-plans-west-virginia-amendments-to-west)
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