S-2.1, r. 4 - Safety Code for the construction industry
3.10.6. Access to construction equipments:
(1) No unauthorized persons shall be allowed to climb onto construction equipment.
(2) The employer shall see that no worker remains in or on a vehicle if he might be endangered during the loading or unloading of the vehicle or while objects are being handled above the said vehicle.
R.R.Q., 1981, c. S-2.1, r. 6, s. 3.10.6.