We have the county agent come every year and he gets rid of all of them and usually by the time he is back the next year we are seeing sign or have actually seen beaver. This year 3 months after he left we have one cute guy that is doing a tremendous amount of damage very quickly. We hate to do it but we dispose of them at dawn or dusk when they are active. I don't think there are any regs or at least our county agent has not told of any. It is a shame but man they will do damage as well as make sharp sticks that can really hurt a dog or a man.