24. Commission Implementing Decision (EU) 2019/709 of 6 May 2019 on the appointment of the network manager for air traffic management (ATM) network functions of the single European sky - European Air Law View the chapter 24. Commission Implementing Decision (EU) 2019/709 of 6 May 2019 on the appointment of the network manager for air traffic management (ATM) network functions of the single European sky by - European Air Law 24. Commission Implementing Decision (EU) 2019/709 of 6 May 2019 on the appointment of the network manager for air traffic management (ATM) network functions of the single European sky