Minimum flight altitudes
64.—(1)  An AOC holder must ensure that, when establishing the minimum flight altitude for a route of any flight of a large aeroplane, all of the following factors are taken into account:
(a)the accuracy and reliability with which the position of the aeroplane can be determined;
(b)the inaccuracies in the indications of the altimeters used;
(c)the characteristics of the terrain;
(d)the probability of encountering unfavourable meteorological conditions such as severe turbulence and descending air currents;
(e)any possible inaccuracies in aeronautical charts;
(f)all relevant airspace restrictions;
(g)any minimum flight altitude established by the State in which the operation takes place.
(2)  An AOC holder must specify in its Operations Manual the method used to establish a minimum flight altitude under paragraph (1), including any conditions that the Director‑General of Civil Aviation may have specified when approving that method.