# Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Revision to Allegheny County Regulations for Prevention of Significant Deterioration
> **Rule** · Final rule. · Published 2013-02-28 · Effective 2013-04-01 · 78 FR 13493
## Document
- **Document number:** 2013-04291
- **Category:** air-emissions
- **Federal Register citation:** 78 FR 13493
- **CFR reference:** 40 CFR 52
- **Publication date:** 2013-02-28
- **Effective date:** 2013-04-01
- **State:** PA
- **EPA docket:** EPA-R03-OAR-2012-0378
## Abstract

EPA is approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Pennsylvania. This revision pertains to the Air Pollution Control portion of the Allegheny County Health Department (ACHD) Rules and Regulations, relating to ACHD's Prevention of Significant Deterioration (PSD) program. Additionally, EPA is also approving this revision for the purpose of determining that ACHD has met its statutory obligations with respect to the infrastructure requirements of the Clean Air Act (CAA) which relate to ACHD's PSD permitting program and are necessary to implement, maintain, and enforce the 1997 ozone National Ambient Air Quality Standard (NAAQS) as well as the 1997 and 2006 NAAQS for particulate matter less than 2.5 microns (PM<INF>2.5</INF>). EPA is approving these revisions that incorporate by reference the Federal PSD program in its entirety in accordance with the requirements of the CAA.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/02/28/2013-04291/approval-and-promulgation-of-air-quality-implementation-plans-pennsylvania-revision-to-allegheny)
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