Chapter IV MONITORING OF THE ACHIEVEMENT OF PERFORMANCEF1 United Kingdom Repealed Original text. Later amendments are not shown. 17Ongoing monitoring and reporting 18Alert mechanisms 19Facilitation of compliance monitoring Annotations Textual amendments F1 Repealed by Commission Implementing Regulation (EU) No 390/2013 of 3 May 2013 laying down a performance scheme for air navigation services and network functions (Text with EEA relevance). Chapter IV