2022 Manitoba Workplace Safety and Health Act and Regulation

General limitation re length 
13.15
An employer must ensure that no single portable ladder and no
section of an extension ladder exceeds 9 m in length.
Portable ladders 
13.16(1) When in use at a workplace, an employer must ensure that a portable
ladder is secured against movement at all times during use and is
placed on a stable, level base.
13.16(2) Without limiting subsection (1), an employer must ensure that
(a) where a portable ladder is used as a means of access to a
platform, roof or other landing, it extends at least one metre
above the platform, roof or other landing; and
(b) for a portable ladder other than a stepladder, it is placed against
a structure so that the slope of the ladder is no more than 1:4.

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Workplace Safety And Health Regulation
155
Stepladders
13.17 
An employer must ensure that a stepladder
(a) is not more than 6 m high when set for use; and
(b) has legs that are securely held in position by metal braces or an
equivalent rigid support.
Workers using portable ladder
13.18
An employer must ensure that a worker using
(a) a stepladder or other commercially manufactured portable
ladder does so in accordance with the manufacturer’s
specifications and safe operating instructions; and
(b) a portable ladder other than a stepladder
(i) does not extend any part of his or her body, except his or
her arms, beyond the side rails of the ladder, and
(ii) maintains a three-point contact on the ladder at all times.
Prohibitions re use of portable ladder
13.19 
An employer must ensure that a worker does not perform work from
either of the top two rungs, steps or cleats of
(a) a portable ladder other than a stepladder unless the
manufacturer’s specifications for the ladder permit it; or
(b) a stepladder, unless
(i) it has a railed platform at the top, or
(ii) the manufacturer’s specifications for the stepladder permit
it.
FIXED LADDERS