168.1. A supply (other than a supply by way of sale) of a parking space in a parking lot made by a public sector body is exempt if(1) at the time the supply is made, either(a) all of the parking spaces in the specified parking area in relation to the supply are reserved for use by individuals who are accessing a hospital centre, or
(b) it is reasonable to expect that the specified parking area in relation to the supply will be used, during the calendar year in which the supply is made, primarily by individuals who are accessing a hospital centre;
(2) it is not the case that(a) all or substantially all of the parking spaces in the specified parking area in relation to the supply are reserved for use by persons other than individuals accessing a hospital centre otherwise than in a professional capacity,
(b) the supply or the amount of the consideration for the supply is conditional on the parking space being used by a person other than an individual accessing a hospital centre otherwise than in a professional capacity, or
(c) the agreement for the supply is entered into in advance and, under the terms of the agreement for the supply, use of a parking space in the specified parking area in relation to the supply is made available for a total period of time that is more than 24 hours and the use is to be by a person other than an individual accessing a hospital centre otherwise than in a professional capacity; and
(3) no election made by the public sector body under section 272 is in effect, in respect of the property on which the parking space is situated, at the time tax under this Title would become payable in respect of the supply if it were a taxable supply.