# Revisions to the California State Implementation Plan, for Imperial County, Kern County, and Ventura County; Air Pollution Control Districts
> **Rule** · Direct final rule. · Published 2011-03-07 · Effective 2011-05-06 · 76 FR 12280
## Document
- **Document number:** 2011-4914
- **Category:** air-emissions
- **Federal Register citation:** 76 FR 12280
- **CFR reference:** 40 CFR 52
- **Publication date:** 2011-03-07
- **Effective date:** 2011-05-06
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2010-0813
## Abstract

EPA is taking direct final action to approve revisions to the Imperial County Air Pollution Control District (ICAPCD), Kern County Air Pollution Control District (KCAPCD), and Ventura County Air Pollution Control District (VCAPCD) portions of the California State Implementation Plan (SIP). Under authority of the Clean Air Act as amended in 1990 (CAA or the Act), we are approving local rules that define terms used in other air pollution regulations in these areas.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/03/07/2011-4914/revisions-to-the-california-state-implementation-plan-for-imperial-county-kern-county-and-ventura)
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