PERSONNEL AND EQUIPMENT25-6. Each recovery boat must have at least one safety swimmer on board. The safety swimmers are used to recover personnel and equipment, and assist jumpers as needed. The safety swimmer cannot be additionally assigned as the boat coxswain or corpsman. The safety swimmer should be a qualified jumper and be qualified as a U.S. Army Class 1 advanced survival swimmer (in compliance with TC 21-21), U.S. Marine Corps combat water survival-1, U.S. Navy first class swimmer, qualified SEAL, SWCC, EOD, U.S. Navy diver, or lifeguard-certified. The safety swimmer has the following items: Fins. Face mask. Knife. Inflatable life preserver.