Duck hunting question

[Smalls]

Gotta stop reading all this hunting stuff, its too early to be thinking about all of that. haha

Anyway, got this on my mind and need to get it off. What are the rules on hunting from a boat? Specifically on a bayou or river. I know you can't have the boat underway while hunting, but does the motor have to be out the water. Thinking about hunting Sabine Island this year for wood ducks, but wanted to make sure I was clear on that.