Commission Regulation (EC) No 633/2007 of 7 June 2007 laying down requirements for the application of a flight message transfer protocol used for the purpose of notification, coordination and transfer of flights between air traffic control units (Text with EEA relevance) (c. 633)

ANNEX I U.K. Interoperability requirements referred to in Article 3

3. A connection management function shall establish and release connections between flight message transfer peer entities ensuring that flight data transfer can be achieved only during the lifetime of a connection. U.K.