# Revisions to the California State Implementation Plan, Imperial County Air Pollution Control District and San Joaquin Valley Unified Air Pollution Control District
> **Rule** · Direct final rule. · Published 2014-10-02 · Effective 2014-12-01 · 79 FR 59433
## Document
- **Document number:** 2014-23400
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 59433
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-10-02
- **Effective date:** 2014-12-01
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2014-0460
## Abstract

The Environmental Protection Agency (EPA) is taking direct final action to approve revisions to the Imperial County Air Pollution Control District (ICAPCD) and San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) portions of the California State Implementation Plan (SIP). These revisions concern definitions that are necessary for the creation, modification and understanding of rules that address air pollution. Among other changes, the revised definitions help clarify federal New Source Review (NSR) requirements, update the districts' exempt volatile organic compounds list to correspond with EPA's, and improve formatting consistency. We are approving local rules that define terms under the Clean Air Act (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/10/02/2014-23400/revisions-to-the-california-state-implementation-plan-imperial-county-air-pollution-control-district)
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