OACA is charged particularly, of the following missions : - Operation, layout and development of airports, as well as the achievement of all the necessary processes and facilities for passengers, the public, aircraft, freight and air mail in the airports ; - Area, approach, aerodrome and ground control together with the participation in elaborating and in carrying out search and rescue plans ; - Delivery of all documents required for aeronautical staff, aircraft and air navigation complying with the rules and regulations in force ;