Chapter 4: The Legal Requirements of Boating
Other Equipment and Regulations

Diver-Down Flags

Illustration	Types of Flags
	Divers Flag: A rectangular red flag with a white diagonal stripe if on Idaho state waters
	Alfa Flag: A blue and white International Code Flag A (or Alfa flag), at least 3.3 feet (one meter) high and visible from all directions, must be displayed on vessels on federally controlled waters. This flag indicates that the vessel is involved in a diving activity.
	Skier-Down Flag: A bright red or brilliant orange flag, at least 12 x 12 inches in size

Skier-Down Flag

Idaho law states that vessels towing person(s) on water skis or other similar devices must carry and use a red or orange skier-down flag, at least 12 x 12 inches in size, whenever the towed person(s) is in the water.

Vessels towing person(s) on water skis or similar devices must display a red or orange skier-down flag whenever the towed person(s) is in the water.

Marine Event

If an event is being held on Idaho waters, you must apply for a permit from the County Sheriff who has jurisdiction over the waters at least 30 days prior to the event.

Local Regulations

County and city governments may have additional regulations governing the operation of vessels on waters within their jurisdictions. Contact the local sheriff’s department to learn of any special restrictions in the county where you will be boating.