National Airport Associations Arbeitsgemeinschaft DeutscherVerkehrsflughäfen (ADV) Romanian Airports Association Association "Airports of Ukraine" of Civil Aviation Swiss Aerodromes Association (SAA) Association of Airport Operators (AOA) Union des Aéroports Français & Francophones Associés (UAF & FA) Associazione Italiana Gestori Aeroporti Associazione Italiana Gestori Aeroporti (Assaeroporti)