Florida Dive Flag Requirements:

• The Dive Flag must be at least 20 inches by 24 inches, and must have a stiffener to keep the flag unfurled and must be displayed above the highest point of the vessel so visibility is not obstructed in any direction.  Dive flags on floats must be at least 12 inches by 12 inches.
• Divers should try to to stay within 300 feet of a divers-down flag on open waters (all waterways other than rivers, inlets, or navigation channels) and within 100 feet of a flag within rivers, inlets, or navigation channels.
• Vessel operators should maintain a distance of at least 300 feet from divers-down flags on open waters and at least 100 feet from flags on rivers, inlets or navigation channels.  Vessels approaching divers-down flags closer than 300 feet in open water and 100 feet in rivers, inlets and navigation channels must slow to idle speed.
• The flag should not be displayed when divers are out of the water.