Activation is a security measure to prevent your card from being stolen out of the mail.  Activation will require you to validate the two-digit month/day of your birthday to ensure that you have received your reloadable card.  The card must be activated before you are able to use it.  Your reloadable card can be activated by calling 866-466-0058 (954-377-4496 outside the U.S.) or visiting www.atirareload.com.