S-2.1, r. 4 - Safety Code for the construction industry

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3.24.2. Telecommunications system: A telecommunications system used by a worker who guides a maneuver under subsection 2 of section 3.10.5 must be bidirectional, hands-free and transmit on a radio frequency dedicated exclusively to the work in progress.
The work in progress must be interrupted in case of telecommunications system failure.
O.C. 391-2011, s. 2; O.C. 1078-2015, s. 6.
3.24.2. Signalmen and telecommunications system: A telecommunications system used by a signalman who guides a maneuver under subsection 2 of section 3.10.5 must be bidirectional, hands-free and transmit on a radio frequency dedicated exclusively to the work in progress.
The work in progress must be interrupted in case of telecommunications system failure.
O.C. 391-2011, s. 2.