# Approval and Promulgation of Maintenance Plan and Designation of Area for Air Quality Planning Purposes for Carbon Monoxide; State of Arizona
> **Rule** · Final rule. · Published 2000-06-08 · Effective 2000-07-10 · 65 FR 36353
## Document
- **Document number:** 00-13978
- **Category:** air-emissions
- **Federal Register citation:** 65 FR 36353
- **CFR reference:** 40 CFR 52
- **Publication date:** 2000-06-08
- **Effective date:** 2000-07-10
- **State:** AZ
- **EPA docket:** AZ072-0085
## Abstract

EPA is taking final action to redesignate the Tucson Air Planning Area (TAPA) to attainment for the carbon monoxide (CO) National Ambient Air Quality Standard (NAAQS) and to approve a maintenance plan that will insure that the area remains in attainment.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/06/08/00-13978/approval-and-promulgation-of-maintenance-plan-and-designation-of-area-for-air-quality-planning)
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