# Air Quality Implementation Plan; California; Calaveras County Air Pollution Control District and Mariposa County Air Pollution Control District; Stationary Source Permits
> **Rule** · Final rule. · Published 2020-11-19 · Effective 2020-12-21 · 85 FR 73634
## Document
- **Document number:** 2020-23922
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 73634
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-11-19
- **Effective date:** 2020-12-21
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2019-0498
## Abstract

The Environmental Protection Agency (EPA) is finalizing revisions to the Calaveras County Air Pollution Control District (CCAPCD) and the Mariposa County Air Pollution Control District (MCAPCD) portions of the California State Implementation Plan (SIP). In this action, we are approving two rules, one submitted by the CCAPCD and the other by the MCAPCD, governing the issuance of permits for stationary sources, focusing on the preconstruction review and permitting of major sources and major modifications under part D of title I of the Clean Air Act (CAA or "the Act").

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/11/19/2020-23922/air-quality-implementation-plan-california-calaveras-county-air-pollution-control-district-and)
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