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

Full text
120. In an underground mine an alarm system shall be installed. The system shall comply with the following standards:
(1)  it must be protected against weather at all times;
(2)  it may be activated at all times;
(3)  it is at all times capable of warning all underground workers of the necessity of evacuating the mine.
O.C. 213-93, s. 120.