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

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421. (Revoked).
O.C. 213-93, s. 421; Erratum, 1993 G.O. 2, 2603; O.C. 621-2013, s. 9.
421. In each explosives magazine constructed on or after 1 April 1993 whose chamber contains more than 2,500 kg (5,511.5 lb) of explosives, there shall be a compression relief chamber:
(1)  located directly opposite the chamber containing the explosives;
(2)  whose cross-section is of the same dimension as that of the chamber containing the explosives;
(3)  whose central longitudinal axis is the same as that of the chamber containing the explosives;
(4)  having a depth of at least 3 m (9.8 ft).
O.C. 213-93, s. 421; Erratum, 1993 G.O. 2, 2603.