Are you in an AP class? If so, it is time to register for these exams using the online registration system at aptestservice.com/princeton. The registration window is open now and will close on Friday, March 17th. The total cost for each exam is $90.00 (after the $10.00 required exam deposit that was paid in the 1st semester). You can pay online using credit card, PayPal, check or money order. Exams will be given May 2nd -May 10th. Please remember that testing is an AP class requirement.