These Regulations revoke and replace the Single European Sky (National Supervisory Authority) Regulations 2004 (S.I. 2004/1958) (the 2004 Regulations) and the Single European Sky (Functions of the National Supervisory Authority) Regulations 2006 (S.I. 2006/3104) (the 2006 Regulations) reflecting the updates introduced by Regulation (EC) 1070/2009 (OJ L 300, 14.11.2009, p.34).