Position of scuba divers to be marked. Safe operating distance for vessels.

(b) Not more than four persons shall use the same marking device simultaneously, except when engaged in underwater swimming or diving from an anchored boat displaying such marking device, in which case the number of persons using the same marking device shall be limited to the legal capacity of such boat. (c) No person shall operate a vessel or cause any person on water skis to pass within one hundred feet of a device marking the location of an underwater swimmer or diver. (d) Violation of any provision of this section shall be an infraction.