46 CFR § 128.430 - Non-integral keel cooler installations.
---
identifier: "/us/cfr/t46/s128.430"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 128.430 - Non-integral keel cooler installations."
title_number: 46
title_name: "Shipping"
section_number: "128.430"
section_name: "Non-integral keel cooler installations."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "L"
subchapter_name: "OFFSHORE SUPPLY VESSELS"
part_number: "128"
part_name: "MARINE ENGINEERING: EQUIPMENT AND SYSTEMS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
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 49331, Sept. 19, 1997, unless otherwise noted."
cfr_part: "128"
---
# 128.430 Non-integral keel cooler installations.
(a) Each hull penetration for a non-integral keel cooler installation must be made through a cofferdam or at a seachest and must be provided with isolation valves fitted as close to the sea inlet as possible.
(b) Each non-integral keel cooler must be protected against damage from debris and grounding by protective guards or by recessing the cooler into the hull.
[CGD 82-004 and CGD 86-074, 62 FR 49331, Sept. 19, 1997, as amended by USCG-2000-7790, 65 FR 58463, Sept. 29, 2000]