B-1.1, r. 2 - Construction Code

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8.140. A booth erected in a motor fuel dispensing outlet must be made of materials that do not sustain a flame and provide an unobstructed view from inside the booth at all times of the interior surroundings and of the fuelling areas in their entirety.
No combustion heating appliance may be located in a booth.
O.C. 220-2007, s. 1.