Minnesota Dive Flags
Rules for MN divers and boaters
Minnesota state law is very specific about the use of dive flags.
For Divers in Minnesota
According to Minnesota Statutes 2003:
86B.601 Scuba diving
Subdivision 1. Flag required. (a) A person who swims
in waters of the state, except designated swimming areas under
section 86B.311, subdivision 4, while wearing or carrying a
breathing apparatus allowing the swimmer to breathe while under
water, except a snorkel that is not attached to an artificial
container of compressed air, must display a diver's flag above
the surface of the water.
(b) A person who places a diver's flag must remain within
50 feet of the flag, measured on the surface of the water.
(c) A person shall not place a diver's flag where it will
(d) A diver's flag shall measure at least 15 inches
horizontally and 12 inches vertically, and both sides shall have
a red-colored background bisected diagonally by a three-inch
wide white stripe having its upper end adjacent to the flagstaff.
(e) A diver's flag shall be displayed in a vertical plane
extended from a rigid flagstaff equipped to maintain the upper
edge of the flag at least 30 inches above the water surface.
(f) A diver's flag may be reflectorized or fluorescent
provided the entire surface is uniformly reflectorized or
(g) A diver's flag may be anchored or secured to the bottom
when a safety hazard would result from towing the flag.
(h) If at the discretion of the diver it would be safer and
more visible, the flag may be displayed on a watercraft. If the
flag is displayed on the watercraft, the craft must be at anchor
or, if not at anchor, attended by a diver or a person appointed
by the diver to tend the craft. Only watercraft displaying an
official diver's flag are authorized in the diving area.
Subd. 2. Group diving. (a) Not more than four divers
may dive under one flag.
(b) If a group of divers is operating in a contained area,
the perimeter must be marked and be outside of the normal area
of navigation. The markings shall consist of the official
diver's flag and be placed on the perimeter of the diving area
at intervals not exceeding 150 feet.
For Boaters in Minnesota
According to the MN DNR Boating Guide it is illegal to operate a watercraft within 150 feet of a diver's flag.
chris-(@)-interesting.com (remove the hyphens and parentheses)
P.S. The information above was as complete and up-to-date at the time as I could make it. It should not be construed as providing legal advice. You should conduct your own legal research or contact an attorney.