DIVING AND SNORKELING IN CONNECTICUT
Particular care must be taken when boating in waters where there are divers. A vessel engaged in diving should display a red and white flag. Divers operating from shore will display the flag carried on a buoy and used to mark areas where diving is in progress.
Be sure you know what the 'diver down' flags look like and keep well clear of the vessel and diving site, and move at a slow speed (fishermen included) as there may be a diver in close proximity to your vessel. Boat operators are not permitted to operate within 100 feet of a diver down flag.
Scuba divers and snorkelers alike may not surface more than 50 feet from the diver down flag or the vessel flying the flag, except in emergency situations.
Snorkelers and scuba divers alike are asked not to dive in areas where there are already numerous boats occupying the space. Further, diving should not take place in narrow water ways, as such would restrict watercraft from passing.
If the flag is on a float or tube, it may accommodate up to four divers. If the flag is being flown from a boat, it is limited to the legal capacity of the boat.
THE DIVERS FLAG