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

Full text
30. Before urgent repair work is to be done on a locomotive or on the equipment coupled to a locomotive and if the signal provided for in the first paragraph of section 28 is not displayed, the locomotive engineer must be notified by a member of each crew.
The engineer must keep the locomotive at a stop until he has made sure that all the employees have left.
O.C. 1401-2000, s. 30.