Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.143.407 Manning

Standby vessels must be crewed in accordance with their certificate of inspection for 24 hour operation. The Officer in Charge, Marine Inspection, may require the crew to be augmented, as necessary, to provide for maneuvering the standby vessel, for lookouts, for rigging and operating retrieval equipment, and for caring for survivors.