# Determination of Attainment of the 1-Hour Ozone Standard for the Phoenix Metropolitan Area, Arizona and Determination Regarding Applicability of Certain Clean Air Act Requirements
> **Rule** · Final rule. · Published 2001-05-30 · 66 FR 29230
## Document
- **Document number:** 01-13512
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 29230
- **CFR reference:** 40 CFR 81
- **Publication date:** 2001-05-30
- **State:** AZ
- **EPA docket:** AZ-098-0025
## Abstract

EPA is determining that the Phoenix metropolitan serious ozone nonattainment area has attained the 1-hour ozone air quality standard by the deadline required by the Clean Air Act (CAA), November 15, 1999. Based on this determination, we also are determining that the CAA's requirements for reasonable further progress and attainment demonstrations and for contingency measures for the 1-hour ozone standard are not applicable to the area for so long as the Phoenix metropolitan area continues to attain the 1-hour ozone standard.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/05/30/01-13512/determination-of-attainment-of-the-1-hour-ozone-standard-for-the-phoenix-metropolitan-area-arizona)
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