To add onto what Diehard said - you need to check the lable. If you threw it away, do an internet search for it or go to where you bought it and look it up.
Good managment practices dictate that you would wait to sell until after the withdrawal b/c you don't know who is going to buy that calf. It may be some couple who plans to slaughter the calf immediately. but, you are not required to wait to sell.
Just curious - why would you vaccinate so close to wanting to sell unless you are participating in VAC 45 or some other preconditioning program?