# Approval and Promulgation of Implementation Plans; Arizona State Implementation Plan Revision, Coconino County, Mohave County, and Yuma County
> **Rule** · Direct final rule. · Published 2001-05-21 · Effective 2001-07-20 · 66 FR 27871
## Document
- **Document number:** 01-12572
- **Category:** air-emissions
- **Federal Register citation:** 66 FR 27871
- **CFR reference:** 40 CFR 52
- **Publication date:** 2001-05-21
- **Effective date:** 2001-07-20
- **State:** AZ
- **EPA docket:** AZ 094-0027a
## Abstract

EPA is taking direct final action to approve revisions to the Coconino County, Mohave County, and Yuma County portions of the Arizona State Implementation Plan (SIP). These revisions concern the recision of all of the remaining defunct SIP rules from these counties. We are approving the recision of local rules that no longer regulate permitting procedures and various emission sources under the Clean Air Act as amended in 1990 (CAA or the Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/05/21/01-12572/approval-and-promulgation-of-implementation-plans-arizona-state-implementation-plan-revision)
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