# Air Plan Approval; Maryland; Nonattainment New Source Review Requirements for 2015 8-Hour Ozone National Ambient Air Quality Standard
> **Rule** · Final rule. · Published 2022-06-10 · Effective 2022-07-11 · 87 FR 35421
## Document
- **Document number:** 2022-12255
- **Category:** air-emissions
- **Federal Register citation:** 87 FR 35421
- **CFR reference:** 40 CFR 52
- **Publication date:** 2022-06-10
- **Effective date:** 2022-07-11
- **State:** MD
- **EPA docket:** EPA-R03-OAR-2021-0662
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Maryland. The revision certifies that Maryland's existing nonattainment new source review (NNSR) program, covering the Baltimore nonattainment area, the Philadelphia-Wilmington-Atlantic City nonattainment area, and the Washington, DC nonattainment area for the 2015 8-hour ozone national ambient air quality standards (NAAQS), is at least as stringent as applicable Federal requirements. EPA is approving these revisions to the Maryland SIP in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/06/10/2022-12255/air-plan-approval-maryland-nonattainment-new-source-review-requirements-for-2015-8-hour-ozone)
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