46 CFR § 45.109 - Strength of superstructures and deckhouses.

---
identifier: "/us/cfr/t46/s45.109"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 45.109 - Strength of superstructures and deckhouses."
title_number: 46
title_name: "Shipping"
section_number: "45.109"
section_name: "Strength of superstructures and deckhouses."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "E"
subchapter_name: "LOAD LINES"
part_number: "45"
part_name: "GREAT LAKES LOAD LINES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 5104, 5108; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 73-49R, 38 FR 12290, May 10, 1973, unless otherwise noted."
cfr_part: "45"
---


# 45.109 Strength of superstructures and deckhouses.

Each superstructure or deckhouse used for accommodations of the crew must be approved by the Commandant or the approved assigning authority with regard to general strength and weathertightness. The Commandant may use the requirements of the assigning authority as a guide.