Class C: 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 and traffic avoidance advice on request. Continuous air-ground voice communications are required for all flights. For VFR flights a speed limitation of 250 kts indicated airspeed (IAS) applies below 3 050 m (10 000 ft) AMSL, except where approved by the competent authority for aircraft types, which for technical or safety reasons, cannot maintain this speed. All flights shall be subject to ATC clearance.
Class D: IFR and VFR flights are permitted and all flights are provided with air traffic control service. IFR flights are separated from other IFR flights, receive traffic information in respect of VFR flights and traffic avoidance advice on request. VFR flights receive traffic information in respect of all other flights and traffic avoidance advice on request. Continuous air-ground voice communications are required for all flights and a speed limitation of 250 kts IAS applies to all flights below 3 050 m (10 000 ft) AMSL, except where approved by the competent authority for aircraft types, which for technical or safety reasons, cannot maintain this speed. All flights shall be subject to ATC clearance.
Class G: IFR and VFR flights are permitted and receive flight information service if requested. All IFR flights shall be capable of establishing air- ground voice communications. A speed limitation of 250 kts IAS applies to all flights below 3 050 m (10 000 ft) AMSL, except where approved by the competent authority for aircraft types, which for technical or safety reasons cannot maintain this speed. ATC clearance is not required.
ATS airspace classes - Service provided and flight requirements
Class | Type of flight | Separation provided | Service provided | Speed Limitation* | Radio communication capability requirement | Continuous two-way air-ground communication required | Subject to an ATC clearance |
---|---|---|---|---|---|---|---|
C | IFR | IFR from IFR IFR from VFR | Air traffic control service | Not applicable | Yes | Yes | Yes |
VFR | VFR from IFR | 1) Air traffic control service for separation from IFR; 2) VFR/VFR: Traffic information (and traffic avoidance advice on request) | 250 kts IAS below 3050 m (10 000 ft) AMSL | Yes | Yes | Yes | |
D | IFR | IFR from IFR | Air traffic control service, traffic information about VFR flights, (and traffic avoidance advice on request) | 250 kts IAS below 3050 m (10 000 ft) AMSL | Yes | Yes | Yes |
VFR | Nil | Air traffic control service,IFR/VFR and VFR/VFR traffic information (and traffic avoidance advice on request) | 250 kts IAS below 3050 m (10 000 ft) AMSL | Yes | Yes | Yes | |
G | IFR | Nil | Flight information service if requested | 250 kts IAS below 3050 m (10 000 ft) AMSL | Yes | No | No |
VFR | Nil | Flight information service if requested | 250 kts IAS below 3050 m (10 000 ft) AMSL | No | No | No | |
* Competent authority may also exempt aircraft types, which for technical or safety reasons, cannot maintain this speed. ** Pilots shall maintain continuous air-ground voice communication watch and establish two-way communication, as necessary, on the appropriate communication channel in RMZ. |