# Approval and Promulgation of Air Quality Implementation Plans; Maryland; Nonattainment New Source Review Requirements for the 2008 8-Hour Ozone Standard
> **Rule** · Direct final rule. · Published 2017-09-29 · Effective 2017-11-28 · 82 FR 45475
## Document
- **Document number:** 2017-20834
- **Category:** air-emissions
- **Federal Register citation:** 82 FR 45475
- **CFR reference:** 40 CFR 52
- **Publication date:** 2017-09-29
- **Effective date:** 2017-11-28
- **State:** MD
- **EPA docket:** EPA-R03-OAR-2017-0398
## Abstract

The Environmental Protection Agency (EPA) is taking direct final action to approve a revision to the State of Maryland's state implementation plan (SIP). The revision is in response to EPA's February 3, 2017 Findings of Failure to Submit for various requirements relating to the 2008 8-hour ozone national ambient air quality standards (NAAQS). This SIP revision is specific to nonattainment new source review (NNSR) requirements. EPA is approving this revision in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/09/29/2017-20834/approval-and-promulgation-of-air-quality-implementation-plans-maryland-nonattainment-new-source)
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