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 manufacturers of
ALI is the American National Standards Institute (ANSI) approved developer
of the ANSI A14 series of ladder safety standards. Standards are technical
specifications, developed and tested by subject experts, which prescribe
rules governing the safety construction, design, testing, care and use of
various types of ladders.
IHS has partnered with ALI to provide all their ladder standards in both hardcopy and PDF format. Browse the entire ALI standards collection below.