# Clean Air Act Promulgation of Extension of Attainment Date for the Portland, Maine Moderate Ozone Nonattainment Area
> **Rule** · Direct final rule. · Published 1997-04-16 · Effective 1997-06-02 · 62 FR 18526
## Document
- **Document number:** 97-9862
- **Category:** air-emissions
- **Federal Register citation:** 62 FR 18526
- **CFR reference:** 40 CFR 81
- **Publication date:** 1997-04-16
- **Effective date:** 1997-06-02
- **State:** ME
- **EPA docket:** FRL-5809-5
## Abstract

EPA is extending the attainment date for the Portland, Maine moderate ozone nonattainment area from November 15, 1996 to November 15, 1997. This extension is based in part on monitored air quality readings for the national ambient air quality standard (NAAQS) for ozone during 1996. Accordingly, EPA is updating the table in 40 CFR part 81 concerning attainment dates for the State of Maine.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/04/16/97-9862/clean-air-act-promulgation-of-extension-of-attainment-date-for-the-portland-maine-moderate-ozone)
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