This Standard sets out safety requirements for the design and manufacture of portable metal ladders. The Standard provides two duty ratings for industrial ladders and domestic ladders, which are assigned minimum load ratings.The Standard covers single and multiple-section ladders, multipurpose ladders, combination ladders and those special-purpose ladders defined in Clause 1.6.The Standard does not cover ladder accessories, such as ladder levellers, ladder stabilizers or stand-off devices, ladder jacks or ladder straps or hooks that may be installed on, or used in conjunction with, ladders.