Suppliers, taxis and buses are checked for plausibility (e.g. delivery note) at the respective access point and then allowed onto the premises. They are not allowed in the event areas. Passengers or package recipients must be notified by the driver and meet at a drop-off point outside the event area (e.g. hall gate). During set-up and dismantling, the hall access for suppliers is permitted, provided that a 3G proof can be presented.