# Approval and Promulgation of Air Quality Implementation Plans; New Hampshire; Determination of Attainment of the One-Hour Ozone Standard for the Portsmouth-Dover-Rochester and Manchester Areas
> **Rule** · Final rule. · Published 2012-10-30 · Effective 2012-11-29 · 77 FR 65625
## Document
- **Document number:** 2012-26524
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 65625
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-10-30
- **Effective date:** 2012-11-29
- **State:** NH
## Abstract

The EPA is making four separate and independent air quality determinations for two areas in New Hampshire. First, EPA is determining that the Portsmouth-Dover-Rochester, New Hampshire serious one-hour ozone nonattainment area met the applicable deadline of November 15, 1999, for attaining the revoked one-hour National Ambient Air Quality Standard (NAAQS) for ozone. Second, EPA is determining that the Portsmouth-Dover-Rochester area has attained the one-hour ozone standard since 1999, and continues to attain the standard. Third, with respect to the Manchester, New Hampshire marginal one-hour ozone nonattainment area, EPA is determining that the area attained the one- hour ozone NAAQS by the applicable deadline of November 15, 1993. Fourth, with respect to the Manchester area, EPA is determining that the area has attained the one-hour ozone NAAQS since 1993, and continues to attain the standard.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/10/30/2012-26524/approval-and-promulgation-of-air-quality-implementation-plans-new-hampshire-determination-of)
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