Article 56 1.

Taking into account the objectives and the principles set out in Articles 1 and 4, and in particular the nature and risk of the activity concerned, the operational characteristics of the unmanned aircraft concerned and the characteristics of area of operation, a certificate may be required for the design, production, maintenance and operation of unmanned aircraft and their engines, propellers, parts, non-installed equipment and equipment to control them remotely, as well as for the personnel, including remote pilots, and organisations involved in those activities, in accordance with the delegated acts referred to in Article 58 and the implementing acts referred to in Article 57.