The Verkehrsverbund Berlin-Brandenburg (VBB) is a transport association run by public transport providers in the German states of Berlin and Brandenburg. It is a private limited company owned jointly by the states of Berlin and Brandenburg (with one third each) and the 18 counties and cities of Brandenburg with 1.85% each. It was founded on 30 December 1996. VBB claims to be one of the largest transport associations in Europe based on the area covered of 30,367 km2 with nearly 6 million inhabitants.[1] Common ticketing was launched on 1 April 1999. The 2005 number of passengers transported was 1.23 billion, with 3.37 million passengers per day.[2]: p:27