Ruter AS is the public transport authority for Oslo and Akershus counties in Norway. Formally a limited company – 60% of its shares are owned by the Oslo county municipality and 40% by that of Akershus – it is responsible for the administration, funding, and marketing (but not direct operation) of public transport in the two counties, including buses, the Oslo Metro (T-banen i Oslo), Oslo Trams (Trikken i Oslo), and ferry services. Ruter also holds agreements with Norwegian State Railways concerning the regulation of fares on local and regional train services operated within the two counties.