# Approval and Promulgation of Implementation Plans-Maricopa County PM-10 Nonattainment Area; Five Percent Plan for Attainment of the 24-Hour PM-10 Standard
> **Rule** · Final rule. · Published 2014-06-10 · Effective 2014-07-10 · 79 FR 33107
## Document
- **Document number:** 2014-13495
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 33107
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-06-10
- **Effective date:** 2014-07-10
- **EPA docket:** EPA-R09-OAR-2013-0762
## Abstract

The Environmental Protection Agency (EPA) is approving a State implementation plan (SIP) revision submitted by the State of Arizona to meet Clean Air Act (CAA) requirements applicable to the Maricopa County (Phoenix) PM-10 Nonattainment Area. The Maricopa County PM-10 Nonattainment Area is designated as a serious nonattainment area for the national ambient air quality standards (NAAQS) for particulate matter of ten microns or less (PM-10). The submitted SIP revision consists of the Maricopa Association of Governments 2012 Five Percent Plan for PM-10 for the Maricopa County Nonattainment Area and the 2012 Five Percent Plan for the Pinal County Township 1 North, Range 8 East Nonattainment Area" (collectively, the 2012 Five Percent Plan). EPA is approving the 2012 Five Percent Plan as meeting all relevant statutory and regulatory requirements.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/06/10/2014-13495/approval-and-promulgation-of-implementation-plans-maricopa-county-pm-10-nonattainment-area-five)
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