This is my first year attending the World Beef Expo and I still am unsure about some of the requirements we need. Such as the proof of ownership. For example my steer is a cross breed and I did not recieve and paper work for it what should I do? Also they need to be TB tested why do they need to be if they have the RFID tag in there ear and a paper saying it came from a TB free herd. Thanks for any of your help.