# Approval and Promulgation of Air Quality Implementation Plans; State of Colorado; Fort Collins Carbon Monoxide Redesignation to Attainment, Designation of Areas for Air Quality Planning Purposes, and Approval of Related Revisions
> **Rule** · Direct final rule. · Published 2003-07-22 · Effective 2003-09-22 · 68 FR 43316
## Document
- **Document number:** 03-18303
- **Category:** air-emissions
- **Federal Register citation:** 68 FR 43316
- **CFR reference:** 40 CFR 52
- **Publication date:** 2003-07-22
- **Effective date:** 2003-09-22
- **State:** CO
- **EPA docket:** CO-001-0072a
## Abstract

On August 9, 2002, the Governor of Colorado submitted a request to redesignate the Fort Collins "moderate" carbon monoxide (CO) nonattainment area to attainment for the CO National Ambient Air Quality Standard (NAAQS). The Governor also submitted a CO maintenance plan. With the maintenance plan, the Governor submitted revisions to Colorado's Regulation No. 11 "Motor Vehicle Emissions Inspection Program", and Colorado's Regulation No. 13 "Oxygenated Fuels Program". In this action, EPA is approving the Fort Collins CO redesignation request, the maintenance plan, and the revisions to Regulation No. 11 and Regulation No. 13.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/07/22/03-18303/approval-and-promulgation-of-air-quality-implementation-plans-state-of-colorado-fort-collins-carbon)
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