This standard prescribes rules governing the safe construction,
design, testing, care and use of portable metal ladders of various
types and styles.
Ladder styles include ladder type step stools, portable
extension, step, trestle, sectional, combination, single, platform,
and articulating ladders, but excluding ladders in and on mines,
the fire services, mobile equipment, hoisting equipment, work
platforms, antenna communications towers, transmission towers,
utility poles, and chimneys. It does not cover special-purpose
ladders that do not meet the general requirements of this standard,
nor does it cover ladder accessories, including, but not limited
to, ladder levelers, ladder stabilizers or stand-off devices,
ladder jacks, or ladder straps or hooks, that may be installed on
or used in conjunction with ladders.
Note: Ladder type step stools are covered by
A14.2. It is recognized that a step stool standard is under
development. When the step stool standard is approved, A14.2 will
no longer cover ladder type step stools.
These requirements are also intended to prescribe rules and
criteria for labeling/marking of the kinds of portable ladders
cited in this standard, but exclusive of furniture type step stools
and special purpose ladders. These labeling/marking requirements do
not apply to those situations where training, supervision, or
documented safety procedures would be in conflict, or serve in lieu
of, these labeling/marking requirements.
The purpose of this standard is to provide reasonable safety for
life, limb, and property. In order to develop an effective safety
program, the standard may serve also as a basis for purchase
requirements and for instructions in personnel training, and in the
preparation of motivational/ instructional material such as safety
practices, manuals, posters, and the like.
This standard is also intended to provide the manufacturer,
purchaser, and user of metal ladders with a set of performance and
dimensional requirements against which this product may be
compared. It is not the purpose of this standard to specify all the
details of construction of portable metal ladders. The limitations
imposed are for the purpose of providing adequate general
requirements and testing methods needed for consistency.
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