# State Operating Permit Programs; Maryland; Revisions to the Acid Rain Regulations
> **Rule** · Direct final rule. · Published 2007-04-25 · Effective 2007-06-25 · 72 FR 20428
## Document
- **Document number:** E7-7919
- **Category:** air-emissions
- **Federal Register citation:** 72 FR 20428
- **CFR reference:** 40 CFR 70
- **Publication date:** 2007-04-25
- **Effective date:** 2007-06-25
- **State:** MD
- **EPA docket:** EPA-R03-OAR-2007-0254
## Abstract

EPA is taking direct final action to approve revisions to the Maryland operating permit program. The revisions amend the Code of Maryland Administrative Regulations' (COMAR) incorporation by reference citations to ensure that future changes to the Federal Acid Rain program will continue to be incorporated into Maryland's regulations. EPA is approving these revisions in accordance with the requirements of the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/04/25/E7-7919/state-operating-permit-programs-maryland-revisions-to-the-acid-rain-regulations)
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