# Outer Continental Shelf Air Regulations Consistency Update for Massachusetts
> **Rule** · Final rule. · Published 2008-09-17 · Effective 2008-10-17 · 73 FR 53718
## Document
- **Document number:** E8-21486
- **Category:** air-emissions
- **Federal Register citation:** 73 FR 53718
- **CFR reference:** 40 CFR 55
- **Publication date:** 2008-09-17
- **Effective date:** 2008-10-17
- **State:** MA
- **EPA docket:** EPA-R01-OAR-2008-0112
## Abstract

EPA is finalizing the updates of the Outer Continental Shelf (OCS) Air Regulations proposed in the Federal Register on February 27, 2008. Requirements applying to OCS sources located within 25 miles of states' seaward boundaries must be updated periodically to remain consistent with the requirements of the corresponding onshore area (COA), as mandated by section 328(a)(1) of the Clean Air Act Amendments of 1990 (the Act). The portion of the OCS air regulations that is being updated pertains to the requirements for OCS sources in the Commonwealth of Massachusetts. The intended effect of approving the OCS requirements for the Commonwealth of Massachusetts is to regulate emissions from OCS sources in accordance with the requirements onshore.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/09/17/E8-21486/outer-continental-shelf-air-regulations-consistency-update-for-massachusetts)
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