The Direction de l'Aviation Civile Luxembourg (DAC) is the competent authority of the Grand Duchy of Luxembourg in matters relating to aviation safety and security. The DAC’s mission includes: - assisting and advising the Minister of Transport in the execution of his responsibilities in the field of civil aviation ; - ensuring the safety and security of all civil aviation activities in Luxembourg by issuing specific regulations and ensuring that they are respected by all operators in the civil aviation sector ; - managing the Civil Aircraft Register ; - processing applications for Air Transport Operating licenses and Air Operator Certificates ; - issuing – without prejudice to the powers reserved to the Minister – of licenses, certificates, approvals and any other authorization required by the legislation or regulations in force and monitoring compliance with them ; - ensuring the conservation or improvement of the level of safety and security in the aeronautical field in accordance with national and international legislation and regulations ; - controlling the activities of the various service providers at the airport as a public authority acting independently from the airport's managing entity ; - certifying and providing continuous supervision of air navigation service providers and air traffic controllers as the independent national supervisory authority of air navigation service providers.