# Revisions to the California State Implementation Plan, Mojave Desert Air Quality Management District (MDAQMD) and Yolo-Solano Air Quality Management District (YSAQMD)
> **Rule** · Final rule. · Published 2012-07-02 · Effective 2012-08-01 · 77 FR 39181
## Document
- **Document number:** 2012-16060
- **Category:** air-emissions
- **Federal Register citation:** 77 FR 39181
- **CFR reference:** 40 CFR 52
- **Publication date:** 2012-07-02
- **Effective date:** 2012-08-01
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2012-0027
## Abstract

EPA is finalizing approval of revisions to the MDAQMD and the YSAQMD portions of the California State Implementation Plan (SIP). These rules were proposed in the Federal Register on February 28, 2012 and concern glass furnaces and biomass boilers. 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/2012/07/02/2012-16060/revisions-to-the-california-state-implementation-plan-mojave-desert-air-quality-management-district)
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