Article 30 3

(a)

costs related to the oversight of air navigation services incurred by national supervisory authorities, national competent authorities, and other national authorities entrusted by Member States to carry out tasks in relation to this Regulation and Regulation 2018/1139, where the Member State so decides;

(b)

costs incurred by the air navigation service providers designated under Articles 8 and 10, in relation to the provision of air navigation services and the network functions;

(c)

costs stemming from the Eurocontrol International Convention relating to cooperation for the safety of air navigation of 13 December 1960 as last amended, where the Member State so decides.