The International Association of Public Transport (UITP, from the French: L’Union internationale des transports publics) is a non-profit advocacy organization for public transport authorities and operators, policy decision-makers, scientific institutes and the public transport supply and service industry. The association was founded on August 17, 1885 by King Leopold II in Brussels, Belgium to support the Belgian tram and steel industries.[1] UITP supports a holistic approach to urban mobility and advocates for public transport development and sustainable mobility.