2022 Manitoba Workplace Safety and Health Act and Regulation

Supervisor
32.5
An employer must ensure that a worker who works with precast
concrete is supervised by a person who is experienced in precast
concrete construction.
Placement and support
32.6 
An employer must ensure that a precast concrete part is
(a) placed on a supporting component of the structure that is
capable of safely supporting its load; and
(b) properly braced to withstand any load, including wind and wind
gusts, that is or is likely to be imposed on the part when it is
placed in its final position.
Hoisting of precast concrete parts
32.7
When a precast concrete part is hoisted, an employer must ensure
that
(a) the device used to hoist the part, such as a spreader bar, clamp
or other similar device, is
(i) designed and certified by a professional engineer,
(ii) equipped with a clearly visible and legible load rating chart,
if it is an adjustable type of lifting device,
(iii) rated for the safe working load and size of the part, and
(iv) inspected by a competent person before it is first used and
daily when in use; and
(b) the part is not hoisted directly over any person.
Rigging clamps
32.8 
An employer must ensure that rigging clamps used for precast hollow
core slab erection are
(a) designed for hoisting precast concrete parts; and
(b) provided with a safety sling of adequate capacity to safely
support the load that is or is likely to be imposed.
Specific provision re tilt-up precast panels
32.9
For a precast concrete part that is a tilt-up precast panel, an employer
must ensure that the panel is

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Workplace Safety And Health Regulation
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(a) unless approved by a professional engineer, void of any cold
joints;
(b) protected from damage from welding or any other application
of heat or any other work procedure;
(c) broken from the casting surface by a mechanical bond breaker;
(d) protected from damage by a lifting insert, bracing insert or
other bracing component; and
(e) hoisted only after the concrete has attained the required
strength specifications of the professional engineer referred to
in clause 32.2(a).