46 CFR § 144.135 - Verification of compliance with design standards.

---
identifier: "/us/cfr/t46/s144.135"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 144.135 - Verification of compliance with design standards."
title_number: 46
title_name: "Shipping"
section_number: "144.135"
section_name: "Verification of compliance with design standards."
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: "2026-03-24"
last_updated: "2026-03-24"
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"
---


# 144.135 Verification of compliance with design standards.

Verification of compliance with the construction and arrangement design standards of this part must be performed according to the following table:

Table 144.135—Verification of Compliance With Design Standards

| If the vessel is— | Then the applicable requirements must be met— |
| --- | --- |
| (a) A new vessel, | Before the COI is issued. |
| (b) A vessel to undergo a major conversion or alteration to the hull, machinery, or equipment that may affect the vessel's safety, | Before the major conversion or alteration is performed. |
| (c) A vessel on which a new installation that is not a “replacement in kind”, | Before the new installation is performed. |

[USCG-2006-24412, 81 FR 40101, June 20, 2016; 81 FR 47312, July 21, 2016]