S-2.1, r. 4 - Safety Code for the construction industry
(1) Materials used for scaffolding shall be free from any defects which might impair their resistance.
(2) The lumber used for scaffolding shall be:
(a) in good condition, composed of long non-breaking fibres and free from any defect which might impair its strength;
(b) of a quality equivalent to No. 1 spruce;
(c) barked, if it is rough timber; and
(d) without paint or any opaque coating.
(3) The metal parts of a scaffolding shall:
(a) not be weakened by rust, nor by any corrosive material; and
(b) if tubular elements are used, not be weakened by the effects of cold or heat.
R.R.Q., 1981, c. S-2.1, r. 6, s. 3.9.3; O.C. 53-90, s. 8; O.C. 329-94, s. 43.