# Revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution Control District
> **Rule** · Final rule. · Published 2012-09-20 · Effective 2012-10-22 · 77 FR 58312
## Document
- **Document number:** 2012-21218
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 58312
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-09-20
- **Effective date:** 2012-10-22
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2011-0546
## Abstract

EPA is finalizing approval of revisions to the California State Implementation Plan, San Joaquin Valley Unified Air Pollution Control District. This action was published on June 13, 2012 and concerns volatile organic compound (VOC) emissions from the manufacture of polystyrene, polyethylene, and polypropylene products. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/09/20/2012-21218/revisions-to-the-california-state-implementation-plan-san-joaquin-valley-unified-air-pollution)
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