S-3.3, r. 2 - Regulation respecting rail safety

Full text
86. The person appointed by the engineer must be at a place from where he may observe the level crossing and give signals and instructions to the engineer as necessary.
With hand signals, he must stop vehicular and pedestrian traffic to allow the equipment to pass over the level crossing. He must stay at that place until the level crossing is fully occupied with the equipment.
O.C. 1401-2000, s. 86.