The adoption by the European Parliament and the Council of the first package of the Single European Sky legislation, namely, Regulations (EC) No 549/2004, (EC) No 550/2004, (EC) No 551/2004, and (EC) No 552/2004 of the European Parliament and of the Council, laid down a firm legal basis for a seamless, interoperable and safe air traffic management (ATM) system. The adoption of the second package, namely, Regulation (EC) No 1070/2009 of the European Parliament and of the Council, further strengthened the Single European Sky initiative by introducing the concepts of performance scheme and Network Manager to further improve the performance of the European ATM network. Regulation (EC) No 552/2004 has been repealed by Regulation (EU) 2018/1139 of the European Parliament and of the Council, as the rules necessary for interoperability of ATM systems, constituents and procedures have been incorporated in Regulation (EU) 2018/1139.
Text as published in the Official Journal, reproduced verbatim (including any typographical quirks of the source). For the authentic version, see EUR-Lex.