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.