# Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Revisions to Requirements for Major Sources Locating in or Impacting a Nonattainment Area in Allegheny County
> **Rule** · Direct final rule. · Published 2011-06-10 · Effective 2011-08-09 · 76 FR 34000
## Document
- **Document number:** 2011-14227
- **Category:** air-emissions
- **Federal Register citation:** 76 FR 34000
- **CFR reference:** 40 CFR 52
- **Publication date:** 2011-06-10
- **Effective date:** 2011-08-09
- **State:** PA
- **EPA docket:** EPA-R03-OAR-2009-0881
## Abstract

EPA is taking direct final action to approve a revision to the Pennsylvania State Implementation Plan (SIP) which was submitted on November 16, 2006 by the Pennsylvania Department of Environmental Protection (PADEP). This change to Allegheny County's Air Pollution Control Rules and Regulations amends the existing requirements for sources locating in or impacting a nonattainment area in Allegheny County by incorporating Federal modeling requirements. EPA is approving these revisions to the Pennsylvania SIP in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/06/10/2011-14227/approval-and-promulgation-of-air-quality-implementation-plans-pennsylvania-revisions-to-requirements)
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