# Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Section 110(a)(1) 8-Hour Ozone Maintenance Plan and Amendments to the 1-Hour Ozone Maintenance Plan
> **Rule** · Final rule. · Published 2008-01-08 · Effective 2008-02-07 · 73 FR 1282
## Document
- **Document number:** E7-25640
- **Category:** air-emissions
- **Federal Register citation:** 73 FR 1282
- **CFR reference:** 40 CFR 52
- **Publication date:** 2008-01-08
- **Effective date:** 2008-02-07
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2007-0215
## Abstract

EPA is approving State Implementation Plan (SIP) revisions submitted by West Virginia. These revisions pertain to: the maintenance plan prepared by West Virginia to maintain the 8-hour national ambient air quality standard (NAAQS) for ozone in Greenbrier County, which is designated attainment for the ozone NAAQS; and two amendments to the existing 1-hour ozone maintenance plan, which include removal of the obligation to submit a maintenance plan for the 1-hour NAAQS eight years after approval of the initial 1-hour maintenance plan, and removal of the State's obligation to implement contingency measures upon a violation of the 1-hour NAAQS. The purpose of this approval is to ensure Federal enforceability of the state air program plan and to maintain consistency between the State-adopted plan and the approved SIP. This action is being taken under the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/01/08/E7-25640/approval-and-promulgation-of-air-quality-implementation-plans-west-virginia-section-110a1-8-hour)
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