36. A worker sounding or scaling manually shall remain on sounded or scaled land, take up a stable position and ensure that there is a free space allowing a sudden retreat.
While sounding work is being carried out, no person may use, near the sounding zone, any noisy machine or tool that prevents the worker from hearing the sound of his scaling bar.
O.C. 213-93, s. 36; O.C. 782-97, s. 3; O.C. 1236-98, s. 7; 33-2024O.C. 33-2024, s. 71.