6.3.1. In the case of the construction of slabs and beams that are uniform and horizontal, Subdivisions 6.1 and 6.2 do not apply when the 4 following conditions are respected:(a) the thickness of the concrete slab does not exceed 150 mm and the concrete beams are not higher than 300 mm including the thickness of the slab;
(b) the distance between the underside of the poured concrete and the bearing surface of the posts does not exceed 4.9 m;
(c) Subdivisions 6.4 and 6.9 are complied with;
(d) prior notice is given to the Commission.