46 CFR § 134.150 - Liftboat-jacking systems.

---
identifier: "/us/cfr/t46/s134.150"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 134.150 - Liftboat-jacking systems."
title_number: 46
title_name: "Shipping"
section_number: "134.150"
section_name: "Liftboat-jacking systems."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "L"
subchapter_name: "OFFSHORE SUPPLY VESSELS"
part_number: "134"
part_name: "ADDED PROVISIONS FOR LIFTBOATS"
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, 3307; Department of Homeland Security Delegation No. 0170.1. Section 134.100 also issued under sec. 617, Pub. L. 111-281, 124 Stat. 2905."
regulatory_source: "CGD 82-004 and CGD 86-074, 62 FR 49352, Sept. 19, 1997, unless otherwise noted."
cfr_part: "134"
---


# 134.150 Liftboat-jacking systems.

(a) For this subchapter, liftboat jacking systems are vital systems and must comply with Sections 4/1.13.1 through 4/1.13.3 of the ABS's “Rules for Building and Classing Mobile Offshore Drilling Units” as well as meet the applicable requirements of part 128 of this subchapter.

(b) Each control system for a liftboat jacking system must be designed so that loss of power, loss of pressure in the hydraulic system, or low hydraulic-fluid level will activate a visible and audible alarm at the operating station and will not result in the liftboat's uncontrolled descent.