33 CFR § 149.540 - What are the requirements for obstruction lights on a single point mooring?

---
identifier: "/us/cfr/t33/s149.540"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 149.540 - What are the requirements for obstruction lights on a single point mooring?"
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "149.540"
section_name: "What are the requirements for obstruction lights on a single point mooring?"
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"
---


# 149.540 What are the requirements for obstruction lights on a single point mooring?

(a) The lights for a single point mooring must meet the requirements for obstruction lights in part 67 of this chapter, except that the lights must be located at least 10 feet (3 meters) above mean high water.

(b) A submerged turret loading (STL) deepwater port is not required to meet the requirements for obstruction lights, provided it maintains at least a five-foot (1.5 meters) clearance beneath the net under keel clearance at the mean low water condition for all vessels transiting the area.

(c) An STL deepwater port that utilizes a marker buoy must be lighted in accordance with paragraph (a) of this section.