Missouri Code of State Regulations
Title 11 - DEPARTMENT OF PUBLIC SAFETY
Division 80 - Missouri State Water Patrol
Chapter 2 - Diver's Flag Regulations
Section 11 CSR 80-2.010 - Diver's Flag

(1) The flag shall be rectangular and a minimum of twelve inches by sixteen inches (12" X 16"). The flag shall be red in color except for a two-inch (2") white diagonal stripe running from top left to lower right corner.

(2) All diving shall be within a fifty (50)-yard radius of the flag.

(3) No boat operator shall knowingly operate within fifty (50) yards of the flag.

(4) No diving flag shall be placed so as to impede the normal flow of motorboat traffic unless by special permission of the Missouri State Water Patrol. Special permission may be obtained by writing to the Missouri State Water Patrol, PC. Box 1368, Jefferson City, MO 65102-1368, fifteen (15) days before the water activity.

(5) Any diver not complying with this law or any boat operator within fifty (50) yards of the diver flag shall be guilty of a misdemeanor and upon conviction shall be punished by law as provided by section 306.217(4), RSMo 1986.

(6) Flags must be displayed so that the top of the flag shall be a minimum of three feet (3') above the water if they are displayed on any type of buoyant device with the exception of a boat or a raft; then displayed so as to be visible at a three hundred sixty degree (360o) angle.

(7) The flag shall be exhibited only during diving operation.