ICAO Airspace Classes Flashcards
ICAO Annex 11: Air Traffic Services, Chapter 2, Appendix 4
What is Class A ATS Airspace?
IFR flights only are permitted, all flights are provided with air traffic control service and are separated from each other.
What is Class B ATS Airspace?
IFR and VFR flights are permitted, all flights are provided with air traffic control service and are separated from each other.
What is Class C ATS Airspace?
IFR and VFR flights are permitted, all flights are provided with air traffic control service and IFR flights are separated from other IFR flights and from VFR flights. VFR flights are separated from IFR flights and receive traffic information in respect of other VFR flights.
What is Class D ATS Airspace?
IFR and VFR flights are permitted and all flights are provided with air traffic control service, IFR flights are separated from other IFR flights and receive traffic information in respect of VFR flights, VFR flights receive traffic information in respect of all other flights.
Important Note:
In Class D airspace, both IFR and VFR traffic are required to follow ATC clearances; however, ATC are only responsible for IFR against IFR separation.
What is Class E ATS Airspace?
IFR and VFR flights are permitted, IFR flights are provided with air traffic control service and are separated from other IFR flights. All flights receive traffic information as far as is practical. Class E shall not be used for control zones.
Important Note:
In Class E airspace, ATC does not provide separation between IFR and VFR traffic; IFR traffic shares responsibility for separation from uncontrolled VFR traffic with that traffic.
What is Class F ATS Airspace?
IFR and VFR flights are permitted, all participating IFR flights receive an air traffic advisory service (IFR from IFR separation services as far as practical) and all flights receive flight information service if requested.
What is Class G ATS Airspace?
IFR and VFR flights are permitted, all participating IFR flights receive an air traffic advisory service and all flights receive flight information service if requested.
