No such thing as a boat limit, the stated limit is a personal limit, once you have boated your 4 fish you can not keep fish if you do, your violating the law and will be fined. You can still fish, but you must release them. This is not complicated, new or a different interpretation of the law. It is the way it has always been. Follow the rules and you won't be fined, break them and they'll get you and rightfully so.