You can see how many Test Uses you have remaining or when your access code expires by following these steps:

  1. Login at
  2. Click your name in the top right corner and select My Account 
  3. Select Access Codes from the list of dropdown menus 
  4. You will see the access code you redeemed, the number of test uses left, and the expiration date of the access code

Your code will become inactive depending on if you reach your test use limit or expiration date, whichever you reach first.