Canada Occupational Health and Safety Regulations

14.27 (1) Subject to subsection (2), where the use by a signaller of visual signals will not be an effective means of communication, the employer shall provide the signaller and the operator with a telephone, radio or other audible signalling device.

(2) No radio transmitting equipment shall be used in a work place for the transmission of signals where such use may activate electric blasting equipment in that place.

(3) Where a signalling device referred to in subsection (1) functions unreliably or improperly and the operation of any motorized materials handling equipment cannot be safely directed by another means of signalling, use of the motorized materials handling equipment shall be discontinued until the signalling device is repaired or replaced.

(4) If an employee finds any defect in radio transmitting signalling equipment that may render it unsafe for use, they shall report the defect to their employer as soon as feasible.