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The American Ladder Institute (ALI/LADDER)

IHS is your source for ALI standards and publications.

The American Ladder Institute (ALI) is a not-for-profit association dedicated to promoting safe ladder use. The ALI is comprised of members from the US and Canada who are ladder manufacturers and suppliers of ladder components.

ALI is the American National Standards Institute (ANSI) approved developer of ladder safety standards. Standards prescribe rules for the safe design, testing, construction, care and use of various types of ladders; revisions occur on a 5-year cycle. Two new standards, for Ladder Accessories and for Stepstools, will be released soon.

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ANSI A14.3
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Ladder Standards Ladder Safety
The U.S. Consumer Product Safety Commission estimates that in one year, 65,000 individuals receive emergency room treatment because of ladder accidents.
IHS Markit is your source for safety standards for ladders and stairways.

Browse the ANSI A14 Series of ALI ladder standards