Air Traffic Services covers the purpose, structure, and operation of ATS as defined in ICAO Annex 11. You will learn about ATS divisions, units, airspace classes, and the services provided, including Air Traffic Control, Flight Information, and Alerting Services. The course also addresses ATC clearance procedures, read-back requirements, ATIS/OFIS broadcasts, and the handling of aircraft in uncertainty, alert, or distress phases, giving you a complete overview of how ATS ensures safe and efficient air traffic management.