# Approval and Promulgation of Air Quality Implementation Plans; Maryland; Control of Nitrogen Oxide Emissions From Coal-Fired Electric Generating Units
> **Rule** · Final rule. · Published 2017-05-30 · Effective 2017-06-29 · 82 FR 24546
## Document
- **Document number:** 2017-10912
- **Category:** air-emissions
- **Federal Register citation:** 82 FR 24546
- **CFR reference:** 40 CFR 52
- **Publication date:** 2017-05-30
- **Effective date:** 2017-06-29
- **State:** MD
- **EPA docket:** EPA-R03-OAR-2016-0238
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Maryland. The revision consists of a Maryland regulation that regulates nitrogen oxides (NO<INF>X</INF>) emissions from coal-fired electric generating units (EGUs) in the State. 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/2017/05/30/2017-10912/approval-and-promulgation-of-air-quality-implementation-plans-maryland-control-of-nitrogen-oxide)
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