# Approval of Implementation Plans; Arizona, Phoenix-Mesa; 2008 Ozone Standard Requirements
> **Rule** · Direct final rule. · Published 2015-10-16 · Effective 2015-12-15 · 80 FR 62457
## Document
- **Document number:** 2015-26023
- **Category:** air-emissions
- **Federal Register citation:** 80 FR 62457
- **CFR reference:** 40 CFR 52
- **Publication date:** 2015-10-16
- **Effective date:** 2015-12-15
- **State:** AZ
- **EPA docket:** EPA-R09-OAR-2015-0240
## Abstract

The Environmental Protection Agency (EPA) is taking direct final action to approve revisions to the Arizona State Implementation Plan (SIP) concerning the emission inventory, emission statements, reasonably available control technology corrections and the vehicle inspection and maintenance requirements for the Phoenix-Mesa 2008 eight-Hour Ozone National Ambient Air Quality Standard (NAAQS) Marginal nonattainment area. We are approving these revisions under the Clean Air Act (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2015/10/16/2015-26023/approval-of-implementation-plans-arizona-phoenix-mesa-2008-ozone-standard-requirements)
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