# 2026-19430: Coast Guard Seals Off Underwater Demo of Offshore LNG Port Near Boston

2026-19430, Safety Zone; Massachusetts Bay, Boston, MA, is a Federal Register proposed rule from Homeland Security Department, Coast Guard published 2026-09-23, effective 2027-02-28; PRIA reads it as touching household money (as of 2026-09-30).

- Canonical: https://policyrisk.com/federal-register/2026-19430
- As of: 2026-09-30
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-19430
- Title: Safety Zone; Massachusetts Bay, Boston, MA
- Type: Proposed Rule
- Agencies: Homeland Security Department; Coast Guard
- Citation: 91 FR 60347
- Published: 2026-09-23
- Effective: 2027-02-28
- Comments close: 2026-10-23
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: 1625-AA00
- Last updated: 2026-09-30

## In one line

Coast Guard Seals Off Underwater Demo of Offshore LNG Port Near Boston

## Summary

The Coast Guard wants to create a temporary safety zone in Massachusetts Bay, 22 miles northeast of Boston, to keep people and boats safe during underwater demolition work. This means no one can enter the area without special permission while the Neptune LNG Deepwater Port is being taken apart. If you want to share your thoughts, you have until October 23, 2026, to comment—no costs for the public, just safety first!

## Abstract

The Coast Guard is proposing to establish a temporary safety zone for a certain navigable water of Massachusetts Bay, 22 miles northeast of Boston, MA. The safety zone is needed to protect personnel, vessels, and the maritime public from potential hazards created by subsea demolition operations. This proposed rulemaking would prohibit persons and vessels from entering the safety zone unless specifically authorized by the Captain of the Port Sector Boston or a designated representative. We invite your comments on this proposed rulemaking.

## Effects PRIA read

- 500‑Meter Safety Zone in Massachusetts Bay: cost, low. You may not enter the safety zone that covers all navigable waters within a 500‑meter radius of position 42°28'52.1" N, 70°46'16.9" W (about 22 miles northeast of Boston) from 11:59 p.m. February 28, 2027 through 8 a.m. September 30, 2027 unless the Captain of the Port (COTP) or a designated repres…
- Permission Process and Small‑Entity Certification: benefit, low. Vessels may request permission to enter the safety zone by contacting the Captain of the Port or a designated representative on VHF‑FM channel 16 or by telephone at (833) 449‑0539; those granted permission must follow all lawful orders. The Coast Guard certified the proposed rule would not have a s…

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## Sources
- [2026-19430 on federalregister.gov](https://www.federalregister.gov/documents/2026/09/23/2026-19430/safety-zone-massachusetts-bay-boston-ma)
- [2026-19430 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-09-23/pdf/2026-19430.pdf)

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- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-19430 (as of 2026-09-30).