# Approval and Promulgation of Air Quality Implementation Plans; Wisconsin; Finding of Attainment for 1-Hour Ozone for the Milwaukee-Racine, WI Area
> **Rule** · Direct final rule. · Published 2009-04-24 · Effective 2009-06-23 · 74 FR 18641
## Document
- **Document number:** E9-9364
- **Category:** air-emissions
- **Federal Register citation:** 74 FR 18641
- **CFR reference:** 40 CFR 52
- **Publication date:** 2009-04-24
- **Effective date:** 2009-06-23
- **State:** WI
- **EPA docket:** EPA-R05-OAR-2008-0683
## Abstract

EPA is approving a July 28, 2008, request from the Wisconsin Department of Natural Resources (WDNR) that EPA find that the Milwaukee-Racine, Wisconsin (WI) nonattainment area has attained the revoked 1-hour ozone National Ambient Air Quality Standard (NAAQS).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/04/24/E9-9364/approval-and-promulgation-of-air-quality-implementation-plans-wisconsin-finding-of-attainment-for)
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