UTA – Upper Control Area
CTA – Control Area = controlled airspace extending upwards from a specified limit above the earth
TMA – Terminal Area = normally established at the confluence of ATS routes in vicinity of one or more major aerodromes.
CTR – Control Zone = controlled airspace extending upwards from surface to a specified upper limit.
ATZ – Aerodrome Traffic Zone = an airspace of specified dimensions established around an aerodrome for protection of aerodrome traffic