S-2.1, r. 4 - Safety Code for the construction industry
3.15.1. Public services:
(1) Before digging, the employer shall verify whether there is underground piping within the perimeter of the works to be carried out and, where applicable, situate its exact location on the ground.
(2) The piping may be temporarily disconnected, relocated or left in place, on condition that:
(a) the excavation procedure has been approved in advance by the road office or the utility company;
(b) a work method is adopted which prevents damage to conduits; and
(c) temporary supports are constructed.
R.R.Q., 1981, c. S-2.1, r. 6, s. 3.15.1; O.C. 807-92, s. 9.