# Approval and Promulgation of Air Quality Implementation Plans; Philadelphia County, PA; Construction, Modification and Operation Permit Programs
> **Rule** · Direct final rule. · Published 2003-03-28 · Effective 2003-05-27 · 68 FR 15059
## Document
- **Document number:** 03-7510
- **Category:** air-emissions
- **Federal Register citation:** 68 FR 15059
- **CFR reference:** 40 CFR 52
- **Publication date:** 2003-03-28
- **Effective date:** 2003-05-27
- **EPA docket:** PA202-4400a
## Abstract

EPA is taking direct final action to approve revisions to the Philadelphia County portion of the Pennsylvania State Implementation Plan (SIP). The revision approves Philadelphia County's regulations governing the construction of new and modified sources and the operation of existing sources of air pollution in the County. EPA is approving this SIP revision in accordance with the requirements of the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/03/28/03-7510/approval-and-promulgation-of-air-quality-implementation-plans-philadelphia-county-pa-construction)
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