GM1 SERA.5005(f) Visual flight rules
CAA ORS9 Decision No. 1
VFR MINIMUM HEIGHTS — PERMISSION FROM THE COMPETENT AUTHORITY
Subject to an appropriate safety assessment, permission from the competent authority may also be granted for cases like:
(a) aircraft operating in accordance with the procedure promulgated for the notified route being flown;
(b) helicopters operating at a height that will permit, in the event of an emergency arising, a landing to be made without undue hazard to persons or property on the surface;
(c) aircraft picking up or dropping tow ropes, banners or similar articles at an aerodrome;
(d) any other flights not specified above, where specific exemption is required to accomplish a specific task.