# Designation of Areas for Air Quality Planning Purposes; California; South Coast; Reclassification as Serious Nonattainment for the 2006 PM2.5 NAAQS
> **Rule** · Final rule. · Published 2016-01-13 · Effective 2016-02-12 · 81 FR 1514
## Document
- **Document number:** 2015-33304
- **Category:** air-emissions
- **Federal Register citation:** 81 FR 1514
- **CFR reference:** 40 CFR 52
- **Publication date:** 2016-01-13
- **Effective date:** 2016-02-12
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2015-0204
## Abstract

The Environmental Protection Agency (EPA) is taking final action to reclassify the Los Angeles-South Coast Air Basin (South Coast) Moderate PM<INF>2.5</INF> nonattainment area, including areas of Indian country within it, as a Serious nonattainment area for the 2006 PM<INF>2.5</INF> national ambient air quality standards (NAAQS), based on the EPA's determination that the area cannot practicably attain these NAAQS by the applicable attainment date of December 31, 2015. As a consequence of this reclassification, California must submit, no later than 18 months from the effective date of this reclassification, nonattainment new source review (NNSR) program revisions and a Serious area attainment plan including a demonstration that the plan provides for attainment of the 2006 24-hour PM<INF>2.5</INF> standards in the South Coast area as expeditiously as practicable and no later than December 31, 2019.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/01/13/2015-33304/designation-of-areas-for-air-quality-planning-purposes-california-south-coast-reclassification-as)
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