Many of the airport car parks in the United Kingdom are approved by the Park Mark system. The Park Mark is an award presented to car parks in the United Kingdom that meet the standards of the Safer Parking Scheme designed to promote the design and operation of safe and secure car parks. There are several methods of Payment for Airport Parking in the United Kingdom. There is the ‘turn up & pay up” method available, where the passenger takes a ticket upon entry and pays later at the exit after leaving. There is also an option of paying at machines located in the airport terminals. Additionally, car parking can be prebooked online or by phone with discounts offered when using these methods.