Yes, the medical release may be filled out at the registration table. Keith will make sure yours is done before you get that armband. But -- and it's a big but - it's way easier and nicer to the folks in line behind you to fill it out in advance. Do it at home and mail it or at worst, bring it with you to the salt. The chances are better that you'll have all of the information correct and that your penmanship will be legible.
Another thing worth noting to some of us: Volunteers must fill out an additional medical release. Same form, but Judy insists on us doing it so the volunteer coordinator has the information on hand should that volunteer have a crisis where the information is needed. Do that one, too.