S-2.1, r. 14 - Regulation respecting occupational health and safety in mines

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449.2. No motorized vehicle may be driven, parked or stopped under loaded drill holes in the roof of an underground working unless
(1)  the detonator wires and explosives are completely inserted in the holes; and
(2)  the collar of the holes is capped.
O.C. 119-2006, s. 37.