CASA OAR 140/12 - Determination of airspace and controlled aerodromes etc
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3 Definitions
In this instrument:
AIP includes a NOTAM.
Controlling Authority for a volume of airspace, or part of a volume of airspace, mentioned in a Schedule, means one of the following:
(a) subject to paragraph (b) and (c), the Controlling Authority mentioned in the Schedule for the volume of airspace, including any part of the volume of airspace;
(b) for Schedule 2, 3, 4 or 5, where the Controlling Authority mentioned in the Schedule for the volume of airspace, or part of the volume of airspace, is not the Department of Defence – RAAF (the RAAF) – the RAAF by agreement between the RAAF and Airservices Australia (AA) as expressed in acceptance by the RAAF of a voice telecommunication from AA releasing the airspace, or part of the airspace, to the RAAF;
(c) for Schedule 2 or 5, where the Controlling Authority mentioned in the Schedule for the volume of airspace, or part of the volume of airspace, is not AA — AA by agreement between AA and the RAAF as expressed in acceptance by AA of a voice telecommunication from the RAAF releasing the airspace, or part of the airspace, to AA.
Note Releases are strictly in accordance with written procedures established by AA and the RAAF.
hours of activity means the hours during which:
(a) the air traffic control service for a volume of airspace remains available; and
(b) the volume of airspace retains its initial classification.
initial classification has the meaning given in subsection 5 (1).