Section 149.337 - What are the requirements for ring life buoys?(a) Each unmanned deepwater port must have at least one ring life buoy complying with § 149.320 to this part.(b) If there is no space on the deepwater port for the ring life buoys, they must be on a manned vessel located alongside of the deepwater port while the persons are on the deepwater port.USCG-1998-3884, 71 FR 57651, Sept. 29, 2006, as amended by USCG-2013-0397, 78 FR 39179, July 1, 2013