Illinois Dive Flags
Rules for IL divers and boaters
According to research done by Tom Holtey of Top Kayaker:
For Divers in Illinois
12” x 15” Diver Down Flag (Alpha Flag is alternative). Display flag at a height above the water so as to be clearly apparent at a distance of 100 yards. Divers shall not rise to the surface outside of a radius of 50’ from such flag. Federal regulations may apply to Great Lakes and/or international waters.
For Boaters in Illinois
No watercraft shall be operated within 150’ of a diving flag except for watercraft directly associated with that diving activity.
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P.S. This information was as complete and up-to-date as I could reasonably make it. This material is not a complete analysis of the topic and should not be construed as providing legal advice. Readers should conduct their own appropriate legal research or contact an attorney in their own state.