Departments can order day or discount tickets so that visitors can leave the parking areas on campus without any charges.
Do I need a day ticket or a discount ticket?
A day pass can be presented directly at the gate when exiting. With the discount card you go to a cash desk, there you enter the discount card, then the exit card and you get that back to offer at the gate when exiting.
Day tickets are valid for a whole day, discount tickets for a maximum of 4 hours. The day tickets and discount tickets have no expiry date.