3.7.1. Temporary ramps, runways and platforms, other than scaffolding platforms, shall:(a) be designed, constructed and maintained to safely support loads that may be applied to them;
(b) be at least 480 mm wide;
(c) be securely fastened in place;
(d) have braces that tie their vertical and horizontal supports and ensure stability;
(e) when they are open-worked and placed more than 1.8 m above the floor or the ground, not include openings or holes such as a sphere of 30 mm can go through;
(f) have a free space of 2 m above and below, unless the danger is indicated;
(g) where they include welded elements, be welded by welders having an “O” or “V” class certificate from the Canadian Welding Bureau or a Class A or B qualification certificate in pressure vessel welding issued by the Minister of Employment and Social Solidarity;
(h) bear a plate giving their rated load, maximum weight (including rated load), name of the manufacturer, date of manufacture, reference to plans submitted and in the case of a ramp, a runway or a platform made after 24 January 1987, identification of the welder;
(i) have guard-rails complying with Subdivision 3.8.