# Air Plan Approval; Colorado; Denver Metro/North Front Range Nonattainment Area; Nonattainment NSR Permit Program Certification for the 2015 8-Hour Ozone Standard
> **Rule** · Final rule. · Published 2022-05-13 · Effective 2022-06-13 · 87 FR 29232
## Document
- **Document number:** 2022-10211
- **Category:** air-emissions
- **Federal Register citation:** 87 FR 29232
- **CFR reference:** 40 CFR 52
- **Publication date:** 2022-05-13
- **Effective date:** 2022-06-13
- **State:** CO
- **EPA docket:** EPA-R08-OAR-2020-0644
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Colorado. The submittal certifies that the State of Colorado has fulfilled, through previous SIP revisions, Nonattainment New Source Review (NNSR) Permit Program requirements under the 2015 8-hour ozone National Ambient Air Quality Standards (NAAQS) for the Denver Metro/North Front Range (DMNFR) area. The State of Colorado submitted the certification to meet the nonattainment requirements for Marginal ozone nonattainment areas (NAAs) for the 2015 8-hour ozone NAAQS. The EPA is taking this action pursuant to sections 110, 172, 173, and 182 of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/05/13/2022-10211/air-plan-approval-colorado-denver-metronorth-front-range-nonattainment-area-nonattainment-nsr-permit)
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