33 CFR § 80.125 - Marblehead Neck, MA to Nahant, MA.

---
identifier: "/us/cfr/t33/s80.125"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 80.125 - Marblehead Neck, MA to Nahant, MA."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "80.125"
section_name: "Marblehead Neck, MA to Nahant, MA."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "D"
subchapter_name: "INTERNATIONAL NAVIGATION RULES"
part_number: "80"
part_name: "COLREGS DEMARCATION LINES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "14 U.S.C. 102, 503; 33 U.S.C. 151(a)."
regulatory_source: "CGD 77-118a, 42 FR 35784, July 11, 1977, unless otherwise noted. Redesignated by CGD 81-017, 46 FR 28154, May 26, 1981."
cfr_part: "80"
---


# 80.125 Marblehead Neck, MA to Nahant, MA.

The 72 COLREGS apply on the harbors, bays, and inlets on the east coast of Massachusetts from Marblehead Neck to the easternmost tower at Nahant, charted in approximate position latitude 42°25.4′ N., longitude 70°54.6′ W.

[CGD 79-066, 45 FR 15176, Mar. 10, 1980. Redesignated by CGD 81-017, 46 FR 28154, May 26, 1981]