8.147. A motor fuel dispenser may be installed inside a building if it dispenses a Class 2 or Class 3 petroleum product provided that(1) the building is not accessible to the public;
(2) the dispenser is on the first storey;
(3) the ventilation of the building meets the requirements of Part 6 of Chapter I; and
(4) a drainage system is installed for petroleum products that may be spilled.