Three of the most complex and essential elements of international civil aviation are aeronautical communications,
navigation and surveillance. These elements are covered by Annex 10 to the Convention.
Annex 10 is divided into five volumes:
Volume I — Radio Navigation Aids
Volume II — Communications Procedures including those with PANS status
Volume III — Communication Systems
Part 1 — Digital Data Communication Systems
Part 2 — Voice Communication Systems
Volume IV — Surveillance Radar and Collision Avoidance Systems
Volume V — Aeronautical Radio Frequency Spectrum Utilization
The five volumes of this Annex contain Standards and Recommended Practices (SARPs), Procedures for Air Navigation
Services (PANS) and guidance material on aeronautical communication, navigation and surveillance systems.