46 CFR § 144.415 - Combustibles insulated from heated surfaces.

---
identifier: "/us/cfr/t46/s144.415"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 144.415 - Combustibles insulated from heated surfaces."
title_number: 46
title_name: "Shipping"
section_number: "144.415"
section_name: "Combustibles insulated from heated surfaces."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "M"
subchapter_name: "TOWING VESSELS"
part_number: "144"
part_name: "CONSTRUCTION AND ARRANGEMENT"
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. 3103, 3301, 3306, 3308, 3316, 8104, 8904; 33 CFR 1.05; DHS Delegation 00170.1, Revision No. 01.2."
regulatory_source: "USCG-2006-24412, 81 FR 40101, June 20, 2016, unless otherwise noted."
cfr_part: "144"
---


# 144.415 Combustibles insulated from heated surfaces.

Internal combustion engine exhaust ducts, galley exhaust ducts and similar ignition sources must be insulated with noncombustible insulation if less than 450 mm (18 inches) away from combustible material. Installations in accordance with ABYC P-1 or NFPA 302 (incorporated by reference, see § 136.112 of this subchapter) will be considered as meeting the requirements of this section.