# Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Philadelphia County Reasonably Available Control Technology Under the 1997 8-Hour Ozone National Ambient Air Quality Standards
> **Rule** · Final rule. · Published 2016-10-07 · Effective 2016-11-07 · 81 FR 69687
## Document
- **Document number:** 2016-23840
- **Category:** air-emissions
- **Federal Register citation:** 81 FR 69687
- **CFR reference:** 40 CFR 52
- **Publication date:** 2016-10-07
- **Effective date:** 2016-11-07
- **State:** PA
- **EPA docket:** EPA-R03-OAR-2008-0603
## Abstract

The Environmental Protection Agency (EPA) is approving state implementation plan (SIP) revisions submitted by the Commonwealth of Pennsylvania (Pennsylvania). The revisions pertain to a demonstration that Philadelphia County (Philadelphia) meets the requirements for reasonably available control technology (RACT) of the Clean Air Act (CAA) for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOC) as ozone precursors for the 1997 8-hour ozone national ambient air quality standards (NAAQS). In this rulemaking action, EPA is approving three separate SIP revisions addressing RACT under the 1997 8-hour ozone NAAQS for Philadelphia; approving portions of two previously submitted RACT SIP revisions, which EPA had found deficient and conditionally approved; and converting the prior conditional approval of the Philadelphia RACT demonstration for the 1997 8-hour ozone NAAQS to full approval. EPA is approving these revisions to the Pennsylvania SIP addressing 1997 8-hour ozone RACT for Philadelphia in accordance with the requirements of the CAA.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/10/07/2016-23840/approval-and-promulgation-of-air-quality-implementation-plans-pennsylvania-philadelphia-county)
---
*AI Analytics · CC0 1.0*