# Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Allegheny County Reasonably Available Control Technology Under the 8-Hour Ozone National Ambient Air Quality Standard
> **Rule** · Final rule. · Published 2013-06-10 · Effective 2013-07-10 · 78 FR 34584
## Document
- **Document number:** 2013-13598
- **Category:** air-emissions
- **Federal Register citation:** 78 FR 34584
- **CFR reference:** 40 CFR 52
- **Publication date:** 2013-06-10
- **Effective date:** 2013-07-10
- **State:** PA
- **EPA docket:** EPA-R03-OAR-2013-0055
## Abstract

EPA is approving a State Implementation Plan (SIP) revision for the Commonwealth of Pennsylvania submitted by Allegheny County Health Department (ACHD). This SIP revision consists of a demonstration that Allegheny County's portion of the Pennsylvania requirements of reasonably available control technology (RACT) for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOCs) satisfy the RACT requirements set forth by the Clean Air Act (CAA). This SIP revision demonstrates that all requirements for RACT are met through: Certification that previously adopted RACT controls in Pennsylvania's SIP that were approved by EPA under the 1-hour ozone national ambient air quality standards (NAAQS) are based on the currently available technically and economically feasible controls, and that they continue to represent RACT for the 8- hour ozone NAAQS; a negative declaration demonstrating that no facilities exist in Allegheny County for certain control technology guideline (CTG) categories; and a new RACT determination for a specific source. This action is being taken under the CAA.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/06/10/2013-13598/approval-and-promulgation-of-air-quality-implementation-plans-pennsylvania-allegheny-county)
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