# Revisions to the California State Implementation Plan, Mojave Desert, Northern Sierra, Sacramento Metropolitan and San Diego Air Pollution Agencies
> **Rule** · Direct final rule. · Published 2012-08-09 · Effective 2012-10-09 · 77 FR 47536
## Document
- **Document number:** 2012-19318
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 47536
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-08-09
- **Effective date:** 2012-10-09
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2012-0332
## Abstract

EPA is taking direct final action to approve revisions to the Mojave Desert Air Quality Management District (MDAQMD), Northern Sierra Air Quality Management District (NSAQMD), Sacramento Metropolitan Air Quality Management District (SMAQMD) and San Diego County Air Pollution Control District (SDCAPCD) portions of the California State Implementation Plan (SIP). These revisions concern volatile organic compound (VOC) emissions from automotive parts and component, automobile refinishing, metal parts and products, and miscellaneous coating and refinishing operations. We are approving local rules that regulate these emission sources under the Clean Air Act as amended in 1990 (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/09/2012-19318/revisions-to-the-california-state-implementation-plan-mojave-desert-northern-sierra-sacramento)
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