33 CFR § 401.71 - Signals—explosive or hazardous cargo vessels.

---
identifier: "/us/cfr/t33/s401.71"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 401.71 - Signals—explosive or hazardous cargo vessels."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "401.71"
section_name: "Signals—explosive or hazardous cargo vessels."
chapter_name: "GREAT LAKES ST. LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION"
part_number: "401"
part_name: "SEAWAY REGULATIONS AND RULES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
cfr_part: "401"
---


# 401.71 Signals—explosive or hazardous cargo vessels.

An explosive or hazardous cargo vessel shall display at the masthead or at an equivalent conspicuous position a “B” flag.

[61 FR 19551, May 2, 1996]