Scuba divers or skin divers in federal waters must display a diver-down flag to mark their diving area. Those spear fishing in Arkansas state waters must display a diver-down flag and are required to stay within 300 feet of the displayed flag.
Vessels not engaged in diving operations should stay at least 100 feet away from a displayed diver-down flag.
Illustrations
Types of Flags
Divers Flag
A rectangular red flag with a white diagonal stripe
is attached to a vessel, float, or buoy.
Alfa Flag
A blue and white International Code Flag A (Alfa flag)
is flown from a vessel on federal waters.