33 C.F.R. § 149.321 How many ring lifebuoys must be on each deepwater port?
Title 33 - Navigation and Navigable Waters
There must be at least four approved ring lifebuoys on each manned deepwater port.
Title 33: Navigation and Navigable Waters
PART 149—DEEPWATER PORTS: DESIGN, CONSTRUCTION, AND EQUIPMENT
Subpart C—Lifesaving Equipment
Manned Deepwater Port Requirements
§ 149.321 How many ring lifebuoys must be on each deepwater port?

