33 CFR § 149.135 - What should be marked on the cargo transfer system alarm switch?

---
identifier: "/us/cfr/t33/s149.135"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 149.135 - What should be marked on the cargo transfer system alarm switch?"
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "149.135"
section_name: "What should be marked on the cargo transfer system alarm switch?"
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "NN"
subchapter_name: "DEEPWATER PORTS"
part_number: "149"
part_name: "DEEPWATER PORTS: DESIGN, CONSTRUCTION, AND EQUIPMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1504, 1509; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "USCG-1998-3884, 71 FR 57651, Sept. 29, 2006, unless otherwise noted."
cfr_part: "149"
---


# 149.135 What should be marked on the cargo transfer system alarm switch?

Each switch for activating an alarm, and each audio or visual device for signaling an alarm, must be identified by the words “Oil Transfer Alarm” or “Natural Gas Transfer Alarm” in red letters at least 1 inch high on a yellow background.