I am not sure that there is any rules outside of whats in the pgc rule book. For my tags, I have my name, phone number, and address. When I am trapping and see another person's set, I avoid that area. You don't want to deal with theft or an animal getting in two different people's traps. No it hasn't happened to me, but its happened before to my friend when he made a set about 10 ft away from another trapper and didn't have it staked down properly. I stay away from places someone else is trapping if I know they are there. It just helps to avoid problems. Simply put, I am not sure what you are asking but pm me for more info if you want.