Management of contractors
30.—(1)  A certified operator of an aerodrome must ensure that the activities performed by each contractor of the certified operator at the aerodrome are performed safely.
(2)  Without limiting paragraph (1), a certified operator of an aerodrome must —
(a)ensure that each contractor of the certified operator adheres to all relevant standard operating procedures when performing any activities at the aerodrome;
(b)ensure that each contractor of the certified operator, taking into account human factors principles, deploys sufficient personnel to perform any activities at the movement area and other areas of the aerodrome; and
(c)exercise adequate supervision of, and liaise with, each contractor of the certified operator on a continuing basis to ensure that any activities performed by the contractor at the aerodrome are performed safely.