# Approval and Promulgation of Air Quality Implementation Plans; Virginia; Opacity Variance for Rocket Testing Operations Atlantic Research Corporation's Orange County Facility
> **Rule** · Direct final rule. · Published 2009-09-04 · Effective 2009-11-03 · 74 FR 45766
## Document
- **Document number:** E9-21399
- **Category:** air-emissions
- **Federal Register citation:** 74 FR 45766
- **CFR reference:** 40 CFR 52
- **Publication date:** 2009-09-04
- **Effective date:** 2009-11-03
- **State:** VA
- **EPA docket:** EPA-R03-OAR-2009-0520
## Abstract

EPA is taking direct final action to approve revisions to the Commonwealth of Virginia State Implementation Plan (SIP). The revisions pertain to the addition of 9 VAC 5 Chapter 220, "Variance for Rocket Motor Test Operations at Atlantic Research Corporation Orange County Facility" and an opacity variance for the rocket motor test operations at Aerojet Corporation's Orange County Facility, in lieu of the opacity limits established in the Virginia SIP. EPA is approving these revisions to the Commonwealth of Virginia SIP in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/09/04/E9-21399/approval-and-promulgation-of-air-quality-implementation-plans-virginia-opacity-variance-for-rocket)
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