Refer to figure.

• Class A: air traffic control services
• Class B: air traffic control services
• Class C
  • IFR flights: air traffic control services, 
  • VFR flights: air traffic control services for separation with IFR and VFR traffic information (and traffic avoidance advice on request)
• Class D
  • IFR flights: air traffic control services including traffic information about VFR flights (and traffic avoidance advice on request)
  • VFR flights: traffic information about VFR and IFR flights (and traffic avoidance advice on request)
• Class E
  • IFR flights: air traffic control services and traffic information for VFR flights as far as practical
  • VFR flights: traffic information as far as practical
• Class F
  • IFR: air traffic advisory service and flight information service
  • VFR: flight information service
• Class G: flight information service

SA-CATS 172 - Airspace and Air Traffic Services
172.02.2 CLASSIFICATION OF AIRSPACE AND LEVEL OF SERVICE PROVISION

1. Classes of airspace
The classes of airspace are –
(1) controlled –

(a) Class A – airspace in which only IFR flights are permitted and all such flights are –

(i) subject to air traffic control services; and
(ii) separated from each other;

(b) Class B – airspace in which IFR flights and VFR flights are permitted and all such flights are –

(i) subject to air traffic control services; and
(ii) separated from each other;

(c) Class C – airspace in which IFR flights and VFR flights are permitted and –

(i) all such flights are subject to air traffic control services;
(ii) IFR flights are separated from each other and from VFR flights; and
(iii) VFR flights are separated from IFR flights and receive traffic information in respect of all other VFR flights;

(d) Class D – airspace in which IFR flights and VFR flights are permitted and –

(i) all such flights are subject to air traffic control services;
(ii) IFR flights are separated from each other and receive traffic information in respect of VFR flights; and
(iii) VFR flights receive traffic information in respect of all other IFR flights and VFR flights;

(e) Class E – airspace in which IFR flights and VFR flights are permitted and –

(i) IFR flights are subject to air traffic control services and are separated from each other; and
(ii) all such flights receive traffic information; and

(2) uncontrolled –

(a) Class F – airspace in which IFR flights and VFR flights are permitted and –

(i) IFR flights receive an air traffic advisory service; and
(ii) all such flights receive flight information services, if requested; and

(b) Class G – airspace in which IFR flights and VFR flights are permitted and all such flights receive flight information services, if requested.