Medical
You will take your medical (the dr seals the envelope) with you at the time of the interview. My husband did his medical when he recieved the notice for the interview, his notice came along with the forms you need and a list of certified civil surgeons. He had about a months notice to get the medical done, plenty of time. I can't remember how long the medical was good for, before it was only a year, but think it has been increased (can't remember for how long).