Essential requirements
Article 40
1. The provision of ATM/ANS referred to in point (g) of Article 2(1) shall comply with the essential requirements set out in Annex VIII and, if applicable, Annex VII. 2. Aircraft operating in the Single European Sky airspace, except those engaged in activities referred to in point (a) of Article 2(3), shall comply with the essential requirements set out in point 1 of Annex VIII.