The Norwegian National Rail Administration (Norwegian: Jernbaneverket) is a government agency responsible for owning, maintaining, operating and developing the Norwegian railway network, including the track, stations, classification yards, traffic management and timetables. Safety oversight is the duty of the Norwegian Railway Inspectorate, while numerous operating companies run trains on the lines; the largest being the state owned passenger company Norges Statsbaner (NSB) and the freight company CargoNet.