Division 3 F1
United Kingdom
Chapter 3 — Aeronautical Telecommunication Network, Section 3.5.2.2 ‘ Controller-Pilot Data Link Communications ’ (CPDLC) application items (a) and (b) of ICAO Annex 10 — Aeronautical Telecommunications — Volume III, Part I (Digital Data Communication Systems) (Second edition, July 2007, incorporating amendments 70-82).