# Approval and Promulgation of Air Quality Implementation Plans; Virginia; Permits for Major Stationary Sources and Major Modifications Locating in Prevention of Significant Deterioration Areas
> **Rule** · Final rule. · Published 2011-09-02 · Effective 2011-10-03 · 76 FR 54706
## Document
- **Document number:** 2011-22448
- **Category:** air-emissions
- **Federal Register citation:** 76 FR 54706
- **CFR reference:** 40 CFR 52
- **Publication date:** 2011-09-02
- **Effective date:** 2011-10-03
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2010-0856
## Abstract

EPA is approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Virginia. The revision establishes the addition of nitrogen oxides (NO<INF>X</INF>) as a precursor to ozone in Virginia for permits of major stationary sources or major modifications locating in Prevention of Significant Deterioration (PSD) areas. EPA is approving the addition of NO<INF>X</INF> as a precursor to ozone based on the Virginia regulations dated December 31, 2008. A previous PSD program approval of Virginia's Chapter 80, Article 8 regulations was provided to the Commonwealth as a "limited approval" for reasons that will not deny this action as being fully approved. This revision to add NO<INF>X</INF> as a precursor to ozone is in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/09/02/2011-22448/approval-and-promulgation-of-air-quality-implementation-plans-virginia-permits-for-major-stationary)
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