# Approval of California Air Plan Revisions, South Coast Air Quality Management District
> **Rule** · Final rule. · Published 2017-09-20 · Effective 2017-10-20 · 82 FR 43850
## Document
- **Document number:** 2017-19693
- **Category:** air-emissions
- **Federal Register citation:** 82 FR 43850
- **CFR reference:** 40 CFR 52
- **Publication date:** 2017-09-20
- **Effective date:** 2017-10-20
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2016-0215
## Abstract

The Environmental Protection Agency (EPA) is taking final action to approve revisions to the South Coast Air Quality Management District (SCAQMD or District) portion of the California State Implementation Plan (SIP). These revisions concern the District's demonstration regarding Reasonably Available Control Technology (RACT) requirements for the 2008 8-hour ozone National Ambient Air Quality Standard (NAAQS) in the South Coast Air Basin and Coachella Valley ozone nonattainment areas.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/09/20/2017-19693/approval-of-california-air-plan-revisions-south-coast-air-quality-management-district)
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