# Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Removal of NOX SIP Call Rules
> **Rule** · Direct final rule. · Published 2010-02-09 · Effective 2010-04-12 · 75 FR 6305
## Document
- **Document number:** 2010-2675
- **Category:** air-emissions
- **Federal Register citation:** 75 FR 6305
- **CFR reference:** 40 CFR 52
- **Publication date:** 2010-02-09
- **Effective date:** 2010-04-12
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2009-0706
## Abstract

EPA is taking direct final action to approve a revision to the West Virginia State Implementation Plan (SIP). The revision removes West Virginia's nitrogen oxides (NO<INF>X</INF>) SIP Call rules. EPA is approving this revision to remove West Virginia's NO<INF>X</INF> SIP Call rules in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/02/09/2010-2675/approval-and-promulgation-of-air-quality-implementation-plans-west-virginia-removal-of-nox-sip-call)
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