176(1)Where a blasting operation by an electric means of initiation is about to commence and while it is in progress, an employer shall ensure that signs bearing the words “Blasting Operations - Turn Off Radio Transmitters” and “Opérations de sautage - éteindre les émetteurs radio” in letters of luminous paint not less than 150 mm high on a contrasting background are posted on all roads within 100 m of the blasting area.

176(2)An employer shall ensure that signs bearing the words “End of Blasting” and “Fin de sautage” indicate to drivers of vehicles when they are leaving the area referred to in subsection (1).

176(3)An employer shall ensure that the signs described in subsections (1) and (2) are removed or covered after each blast is completed.