PFDs: U.S. Coast Guard-approved and wearable personal flotation devices for each person on board. Boats 16 feet or longer must carry a Type IV throwable device.
Fire extinguisher: Coast Guard-approved portable fire extinguisher for boats with permanent or attached gas tanks. Additional extinguishers are required in boats larger than 26 feet.
Navigation Lights: Must be on between official sunset, sunrise.
Flares: Required for vessels in coastal waters.
Bells, Whistles: Boats less than 39.4 feet must carry an efficient sound-producing device. Every vessel from 39.4 to 65.6 feet must carry a whistle and a bell.
More info: Contact the S.C. Department of Natural Resources for complete regulations.