I guess i'm spoiled, in So Cal I dont know of any laws requireing a flag to be flown. I have done a lot of free diving from a sea kayak and I put a flag up on it and kelp tie it out at the edge. If I'm not too close to it the jet skis wont hit me while using it for a pylon, thats a small bit of Palos Verdes diving humor. Anyway I'v never had any encounters with the law over flags. I have had more than one visit from a game warden though.
Bill...........Dive safe
Bill...........Dive safe