S-2.1, r. 13 - Regulation respecting occupational health and safety

Full text
25. Compliance with the standard: Any portable ladder and any stepladder used on a work site shall comply with the CAN3-Z11-M81 Portable Ladders standard.
However, portable ladders and stepladders in use on 2 August 2001 may also be used if they are in good condition and if they comply with the ACNOR Z11-1969 Portable Ladders standard.
This section does not apply to three-rail orchard ladders.
O.C. 885-2001, s. 25.