# Commission Regulation (EC) No 1032/2006 of 6 July 2006 laying down requirements for automatic systems for the exchange of flight data for the purpose of notification, coordination and transfer of flights between air traffic control units (Text with EEA relevance), Division 4.1.1: The information subject to the crossing intention notification process shall include as a minimum:

Extent: E+W+S+N.I.

aircraft identification,
SSR mode and code,
number and type of aircraft,
sector in charge identifier,
crossing route including estimated times and flight levels for each point on the route.

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Source: https://www.legislation.gov.uk/eur/2006/1032/annex/I/part/C/division/4/division/4.1/division/4.1.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2006-1032/annex-I/part-C/division-4/division-4.1/division-4.1.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.