2022 Manitoba Workplace Safety and Health Act and Regulation

Guardrail system requirements
14.3
Subject to section 14.6, an employer must ensure that a guardrail
system is used where there is a risk of a worker falling in any of the
circumstances set out in subsection 14.1(1).
Guardrail requirements
14.4(1) An employer must ensure that a guardrail
(a) is at least 900 mm high and not more than 1,060 mm above
the working surface, with an intermediate rail at between 450
and 530 mm above the working surface; and
(b) is constructed and secured to resist a static load of 900 N in any
direction in which the load may be applied at any point on the
top rail and on any intermediate rail.
14.4(2) A guardrail must have a toe board securely fastened to the posts and
extending from the surface of the working area to a height of at
least 125 mm when there is a risk of falling objects.
14.4(3) If a guardrail is made from wood, it must
(a) be free from splinters and protruding nails; and
(b) have a top and mid rail of at least 38 mm x 89 mm securely
supported on posts of at least 38 mm x 89 mm and spaced at not
more than 2.4 m.
Temporary guardrail removal
14.5
An employer may temporarily remove a guardrail when it is necessary
to do so to facilitate work in the immediate area. The employer must
ensure that any worker in the area uses a fall protection system while
the guardrail is removed.

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Workplace Safety And Health Regulation
160
FALL PROTECTION SYSTEMS
Fall protection systems
14.6
When the use of a guardrail system is not reasonably practicable or
would not be effective, an employer must ensure that the worker is
protected by at least one of the following fall protection systems:
(a) a travel restraint system;
(b) a fall arrest system;
(c) a safety net;
(d) another fall protection system approved by the director.