Chapter IV NETWORK CRISIS MANAGEMENTF1 United Kingdom Repealed Original text. Later amendments are not shown. 18Establishment of the European Aviation Crisis Coordination Cell 19Responsibilities of the Network Manager and the EACCC Annotations Textual amendments F1 Repealed by Commission Implementing Regulation (EU) 2019/123 of 24 January 2019 laying down detailed rules for the implementation of air traffic management (ATM) network functions and repealing Commission Regulation (EU) No 677/2011 (Text with EEA relevance). Chapter IV