2022 Manitoba Workplace Safety and Health Act and Regulation

Barrier if used above grade height
22.17
An employer must ensure that, when powered mobile equipment
is used above grade height in or on a building or other structure,
an appropriate barrier is installed to prevent the equipment from
falling.
Requirements re transporting workers 
22.18(1) An employer must ensure that no worker is transported by powered
mobile equipment or any attachment unless
(a) the equipment or attachmentis designed for that purpose; and
(b) if there is a separation between the operator and the
passenger or passengers, there is a suitable means of
communication between the operator and the passenger or
passengers.
22.18(2) Without limiting subsection (1), an employer must ensure that
no worker is transported on top of a load that is being moved by
powered mobile equipment.

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Workplace Safety And Health Regulation
204
Unattended equipment
22.19 
An employer must ensure that the operator does not leave the
controls of powered mobile equipment unattended unless
(a) the equipment is secured against unintentional movement by an
effective method of immobilizing the equipment; and
(b) all suspended or elevated parts, if any, are fully lowered.
Extending boom 
22.20 
An employer must ensure that no worker operates powered mobile
equipment equipped with an extending boom unless the equipment
is stable under all operating conditions.
Ladders attached to extending boom
22.21(1) An employer must ensure that
(a) if a ladder is a permanent part of an extending boom on
powered mobile equipment, no worker is on the ladder when
the equipment is being moved or the boom is being articulated,
extended or retracted; and
(b) if outriggers or stabilizers are incorporated into powered mobile
equipment, no worker climbs a ladder attached to an extending
boom unless the outriggers or stabilizers are deployed and used
in accordance with the manufacturer’s specifications.
22.21(2) An employer must ensure that a worker who works from a ladder
attached to an extending boom on power mobile equipment
complies with Part 14 (Fall Protection).