237(1)On the initial trip following a blasting operation, a hoist operator shall not lower a bucket transporting employees below a point
(a)
less than fifteen metres above the blasting set, bulkhead or sinking stage, or
(b)
where the health and safety of the employees is likely to be endangered.
237(2)Below the point described in subsection (1), a hoist operator shall lower the bucket slowly only on the signal of the employees being transported.
237(3)An employer shall ensure that on the initial trip described in subsection (1) only a sufficient number of employees are transported as are required to conduct a proper examination of the part of the shaft that may be affected by the blast.