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Scuba diver

Persons scuba diving, skin diving, or snorkeling in Nevada waters must display a diver-down flag to mark their diving area. Vessels not engaged in diving operations must remain at least 100 feet from the diver-down flag, except in the case of an emergency. Vessels not engaged in diving operations must reduce speed to “no wake speed” if within a distance of 100 to 200 feet of the diver-down flag, except in the case of an emergency.

Two types of flags are used to indicate diving activity.

Divers Flag

Divers Flag: A rectangular red flag, at least 12 x 12 inches in size, with a white diagonal stripe (at least 1/5 the width of the flag). The flag may be attached to a vessel, float, or buoy and must be illuminated if used between sunset and sunrise.

Alfa Flag

Alfa Flag: A blue-and-white International Code Flag A (or Alfa flag). This flag indicates that the vessel is involved in a diving activity.

Scuba divers, skin divers, and snorkelers in Nevada waters must display a divers flag and stay within 100 feet of the flag. The flag must be in place only while diving operations are in progress. If diving between sunset and sunrise, the flag must be illuminated.