41.2. Scaling, drilling or support installation work in a seismic excavation must be carried out with mechanized equipment in accordance with a procedure established by an engineer.
The equipment must have an enclosed cab that complies with the plans and specifications of an engineer. The cab glass exposed to the risk of rock projection must be covered with metal mesh and of sufficient resistance to ensure worker safety or designed so as to provide safety equivalent to that combination.
Every person authorized to be in the seismic excavation must be in the enclosed cab for the duration of the work.
33-2024O.C. 33-2024, s. 81.