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

Full text
275. The 9-bell alarm signal may be used only in case of accident, fire, infiltration, flood, landslide or other event of a similar nature. The destination signal for the level on which the danger exists shall be given after the alarm signal. These signals shall be given by telephone or by the conveyance calling device.
However, where these communication systems cannot be installed, the signal system mentioned in section 263 may be used.
O.C. 213-93, s. 275.