22.30R15. A supply of a service of screening made by a screening contractor to the Authority, within the meaning assigned to “screening contractor” and “Authority” by section 2 of the Canadian Air Transport Security Authority Act, enacted by section 2 of the Budget Implementation Act, 2001 (S.C. 2002, c. 9), is a prescribed supply if all or substantially all of the service is performed at an airport situated in Québec.