S-2.1, r. 4 - Safety Code for the construction industry
3.9.15. Outrigger scaffolding: The outrigger beams for an outrigger scaffolding shall:
(a) have their inboard portion from fulcrum point to point of anchorage not less than 1.5 times the length of the outboard portion;
(b) be supported on the solid parts of the construction;
(c) be securely anchored at the fulcrum point and well braced against upsetting;
(d) be securely anchored at the inboard end in order to prevent any vertical or horizontal movement; and
(e) be inspected before each use.
R.R.Q., 1981, c. S-2.1, r. 6, s. 3.9.15.