# Designations of Areas for Air Quality Planning Purposes; Pennsylvania, New Jersey, Maryland, Delaware; Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE 2015 8-Hour Ozone Nonattainment Area; Reclassification to Serious
> **Rule** · Final rule. · Published 2024-07-30 · Effective 2024-07-30 · 89 FR 61025
## Document
- **Document number:** 2024-16570
- **Category:** air-emissions
- **Federal Register citation:** 89 FR 61025
- **CFR reference:** 40 CFR 81
- **Publication date:** 2024-07-30
- **Effective date:** 2024-07-30
- **State:** DE
- **EPA docket:** EPA-R03-OAR-2024-0351
## Abstract

Under the Clean Air Act (CAA or the "Act"), the Environmental Protection Agency (EPA) is granting a request from the Commonwealth of Pennsylvania and the States of New Jersey, Maryland, and Delaware to reclassify the Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE ozone nonattainment area from "Moderate" to "Serious" for the 2015 8-hour ozone national ambient air quality standards (2015 ozone NAAQS).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/07/30/2024-16570/designations-of-areas-for-air-quality-planning-purposes-pennsylvania-new-jersey-maryland-delaware)
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