Massachusetts Dive Flag Law Massachusetts Dive Flag Law The following paragraph is taken verbatim from Mass. General laws, public ways and works 90B 13A: "Every Scuba diver or group of scuba divers while swimming on or under the surface of the waters of the Commonwealth shall display for each diver or group of divers as a warning device to boat operators, a diver's flag, so called, constructed of rigidly supported material at least 12" by 15" in area of red backgroud with a diagonal stripe. Such diver's flag shall be displayed on a boat or surface float and shall extend a minimum distance of three feet from the surface of the water. A boat operator within sight of a diver's flag shall proceed with caution and within 100' of such flag shall proceed at a speed not to exceed three-mph". Penalty for violation is $50, so always fly a flag and consider towing it with you, rather than just anchoring it in your general area. This law is strictly enforced both on land and at sea, especially during summer months. BSC Newsletter