46 CFR § 127.420 - Strength.

---
identifier: "/us/cfr/t46/s127.420"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 127.420 - Strength."
title_number: 46
title_name: "Shipping"
section_number: "127.420"
section_name: "Strength."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "L"
subchapter_name: "OFFSHORE SUPPLY VESSELS"
part_number: "127"
part_name: "CONSTRUCTION AND ARRANGEMENTS"
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. 3306; sec. 617, Pub. L. 111-281, 124 Stat. 2905; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 82-004 and CGD 86-074, 62 FR 49328, Sept. 19, 1997, unless otherwise noted."
cfr_part: "127"
---


# 127.420 Strength.

Each window or porthole, and its means of attachment to the hull or the deckhouse, must be capable of withstanding the maximum expected load from wind and waves, due to its location on the vessel's and the authorized route of the vessel.