# Approval and Promulgation of Air Quality Implementation Plans; Maryland; Requirements for Continuous Emission Monitoring
> **Rule** · Final rule. · Published 2017-07-28 · Effective 2017-08-28 · 82 FR 35104
## Document
- **Document number:** 2017-15733
- **Category:** air-emissions
- **Federal Register citation:** 82 FR 35104
- **CFR reference:** 40 CFR 52
- **Publication date:** 2017-07-28
- **Effective date:** 2017-08-28
- **State:** MD
- **EPA docket:** EPA-R03-OAR-2017-0047
## Abstract

The Environmental Protection Agency (EPA) is approving a state implementation plan (SIP) revision submitted by the State of Maryland. This revision pertains to removing a discontinued Technical Memorandum 90-01 (TM 90-01) from Maryland's SIP, which is now superseded by a new continuous emission monitoring (CEM) regulation. EPA is approving this revision to remove TM 90-01 from Maryland's SIP in accordance with the requirements of the Clean Air Act (CAA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/07/28/2017-15733/approval-and-promulgation-of-air-quality-implementation-plans-maryland-requirements-for-continuous)
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