Rules for LA divers and boaters
According to research done by Tom Holtey of :
For Divers in Louisiana
Alpha and/or Diver Down flag. No size requirement. [Tom recommends 14″ x 18″ min.] Divers must keep with in 100′ from flag. White anchor light required at night.
For Boaters in Louisiana
Other boaters must keep a 100′ distance.
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.