you need an ID with your name, and age on it. If you don't have something like then a picture id with a name, and some other proof of age would be appropriate. If you're there with your parents, that works, or if you're obviously over 18 (naturally grey hair, beard, etc) then you're okay. basically, if for some reason we are wondering about your age, then we need to confirm that at registration. If you are not preregisted, then you will need some sort of proof of age... if you're over 18, and don't have a drivers license... then, ummm... yeah.