# Approval and Promulgation of Air Quality Implementation Plans; District of Columbia; Nonattainment New Source Review Requirements for 2015 8-Hour Ozone Standard
> **Rule** · Final rule. · Published 2021-08-05 · Effective 2021-09-07 · 86 FR 42733
## Document
- **Document number:** 2021-16534
- **Category:** air-emissions
- **Federal Register citation:** 86 FR 42733
- **CFR reference:** 40 CFR 52
- **Publication date:** 2021-08-05
- **Effective date:** 2021-09-07
- **State:** DC
- **EPA docket:** EPA-R03-OAR-2020-0489
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the Department of Energy and Environment (DOEE) of the District of Columbia (the District). The revision will fulfill the District's Nonattainment New Source Review (NNSR) SIP element requirement for the 2015 8-hour ozone National Ambient Air Quality Standard (NAAQS). EPA is approving the revision to the District of Columbia SIP in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/08/05/2021-16534/approval-and-promulgation-of-air-quality-implementation-plans-district-of-columbia-nonattainment-new)
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