S-2.1, r. 8 - Regulation respecting information on controlled products

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23. In a workplace where a controlled product is present in a pipe, a system of pipes with valves, a process vessel, a reaction vessel, a tank car, a tank truck, an ore car, a conveyor belt or any similar conveyance, the employer shall ensure that the controlled product contained therein is clearly identified so that it is used, handled and stored safely.
O.C. 445-89, s. 23.