R651-203-4. Diver's Flag  


Latest version.
  • A square, red flag with a white diagonal stripe from one top corner to the opposite bottom corner should be used to indicate the presence of a diver below. A rigid replica of the International Code "A" flag not less than one meter in height may also be used. The operator of any vessel shall not approach within 150 feet of a posted diver's flag, unless the vessel is part of the equipment in use by the divers.