Loon, are you referring to a belly-boat? I bought one for that exact reason, thinking I would float a few small river areas around me, and use it for standing in open water. I found out it DID count as a boat. You needed to wear a PFD or have one with you. I'm not sure about Lake Michigan? If you stand on the bottom of lake bed, you are legal to hunt, as long as you don't have a blind as an aid. I'm sure you know what rule I'm referring to. This rule does not apply once you sit in or use one of these belly-boats. It now offers concealment, and becomes a blind. Therefore, you would (under normal circumstances) have to be three feet from emergent vegetation, offering 50% concealment. Now if you were on a body of water such as Lake Michigan or Green Bay, where open water hunting was allowed, you could indeed use it like a layout boat, but you would then need to be anchored like the law states. I want to add, that I would love to hunt out of one on Green Bay. I would certainly have a life vest on, but they are so damn comfortable. They are not low profile like a layout, but put a couple strings of decoys right off the layout, and I know you'd kill birds.