Sign in to your quiz center at http://members.nata.org/members1/members.cfm .
To use your free CEU bucks scroll down to “Online CEU Quizzes."
Select the quiz you wish to apply CEU bucks to by clicking ONCE on the “Purchase” button.
CEU bucks will automatically be deducted from your total available. The quiz you just purchased will now be found at the top of your page under the section "Your Quizzes."