TCAS requirements: Traffic collision avoidance system - Wikipedia, the free encyclopedia
Class D: (...) The controlling authority for this airspace is the control tower for the associated airport, and radar may or
may not be used.
Class E: (...)
As far as is practical, traffic information is given to all flights in respect of VFR flights.
Class F: (...) ATC separation will be provided,
so far as practical, to aircraft operating under IFR. (...)
Class G: (...) ATC separation is
not provided.
And then, there is Africa...
Cover ur butt!