# Determination of Attainment of the 1-Hour Ozone National Ambient Air Quality Standard in the San Joaquin Valley Nonattainment Area in California
> **Rule** · Final rule. · Published 2016-07-18 · Effective 2016-08-17 · 81 FR 46608
## Document
- **Document number:** 2016-16792
- **Category:** air-emissions
- **Federal Register citation:** 81 FR 46608
- **CFR reference:** 40 CFR 52
- **Publication date:** 2016-07-18
- **Effective date:** 2016-08-17
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2016-0164
## Abstract

The Environmental Protection Agency (EPA) is determining that the San Joaquin Valley nonattainment area has attained the 1-hour ozone National Ambient Air Quality Standard. This determination is based on sufficient, quality-assured, and certified data for the 2012-2014 period. Ozone data collected in 2015 show continued attainment of the standard in the San Joaquin Valley.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/07/18/2016-16792/determination-of-attainment-of-the-1-hour-ozone-national-ambient-air-quality-standard-in-the-san)
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