8.144. The fuelling area in a motor fuel dispensing outlet must be impermeable to petroleum products over a surface extending at least 3 m in front and 1.5 m to the sides of each motor fuel dispenser measured from the centre of the dispenser. Despite the foregoing, that requirement does not apply to a fuelling area(1) for off-highway vehicles or farm equipment;
(2) to be used for a single period of less than one year;
(3) situated in a designated location; or
(4) the tanks of which have a capacity lower than 2,500 litres.
The impermeability referred to in the first paragraph may be obtained using a reinforced concrete apron or an asphalt layer treated to make it resistant and impermeable to petroleum products.