# Revisions to the Arizona State Implementation Plan, Maricopa County Area
> **Rule** · Final rule. · Published 2013-12-03 · Effective 2014-01-02 · 78 FR 72579
## Document
- **Document number:** 2013-28244
- **Category:** air-emissions
- **Federal Register citation:** 78 FR 72579
- **CFR reference:** 40 CFR 52
- **Publication date:** 2013-12-03
- **Effective date:** 2014-01-02
- **State:** AZ
- **EPA docket:** EPA-R09-OAR-2013-0194
## Abstract

EPA is finalizing approval of revisions to the Maricopa County Area portion of the Arizona State Implementation Plan (SIP). This action was proposed in the Federal Register on April 19, 2013 and concerns particulate matter (PM) emissions from fugitive dust sources. We are approving local statutes that regulate these emission sources under the Clean Air Act (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/12/03/2013-28244/revisions-to-the-arizona-state-implementation-plan-maricopa-county-area)
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