Air Traffic Services Outside Controlled Airspace (ATSOCAS)

(Note: this acronym has no meaning outside of UK)

Description

In the UK Air Traffic Services Outside Controlled Airspace (ATSOCAS) are provided by both civil and military air traffic control units to a variety of airspace users ranging from commercial airliners to military fast jets and general aviation aircraft.

The UK’s Air Traffic Services Outside Controlled Airspace offer four levels of service:

A Basic Service is intended to offer the pilot maximum autonomy and the avoidance of other traffic is solely the pilot’s responsibility. The controller/FISO will pass information pertinent to the safe and efficient conduct of flight. This can include weather, changes of serviceability of facilities, conditions at aerodromes and general activity information within a unit's area of responsibility.