The Technical Supervisory Authority for Cableways (Norwegian: Taubanetilsynet) was the Norwegian authority responsible for cableways including cable cars aerial tramways funiculars ski lifts and similar installations. The authority has since 1 July 1977 been performed by the Trondheim office of Det Norske Veritas (DNV) on contract with the Norwegian Ministry of Transport and Communications. The agency is self-financing and covers its costs through fees based on the services provided.