OHS Code

Published Date: July 01, 2009
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Part 5 Confined Spaces

Section 56 Tending worker

(1) For every confined space or restricted space entry, an employer must designate a competent worker to be in communication with a worker in the confined space or restricted space.

(2) An employer must ensure that the designated worker under subsection (1) has a suitable system for summoning assistance.

(3) An employer must ensure that a competent worker trained in the evacuation procedures in the emergency response plan is present outside a confined space, at or near the entrance, if

(a) the oxygen content of the atmosphere inside the confined space is less than 19.5 percent by volume,

(b) the oxygen content of the atmosphere inside the confined space is greater than 23.0 percent by volume,

(c) the concentration of a substance listed in Schedule 1, Table 2 inside the confined space is greater than 50 percent of its occupational exposure limit, or

(d) a hazard other than one listed in clauses (a), (b) or (c) is identified by the hazard assessment and the hazard cannot be eliminated or effectively controlled.

(4) An employer must ensure that the tending worker under subsection (3)

(a) keeps track at all times of the number of workers inside the confined space,

(b) is in constant communication with the workers inside the confined space, and

(c) has a suitable system for summoning assistance.

(5) A tending worker must not leave the area until all workers have left the confined space or another tending worker is in place.