Navigation system for a vehicle and method of providing point of interest information

A navigation system (10) adapted to be installed in a vehicle and to provide point of interest (POI) information to a user, the navigation system (10) comprises a processing unit (21) for receiving and processing POI information and access permission information, the access permission information being indicative of a required permission for a vehicle regarding the use of at least one specific road area depending on its emission characteristic, and a display screen (18) coupled to the processing unit (21), wherein the processing unit (21) is adapted to generate a control signal resulting in a displaying of the POI information depending on the access permission information on the display screen (18).