Section 25(3) in The Dock Workers (Safety, Health And Welfare) Regulations, 1990
(3)Rope ladders used as a means of access between ship and another vessel shall,--(a)be of good construction, made up of suitable and sound material with adequate strength and properly maintained for the purpose for which it is used;(b)be adequately secured at its upper and in such a manner that it is firmly and safely held in order to prevent any possible slipdown of its spare rolled up portion when the ladder is used;(c)have treads which are flat and of a width and depth of not less than 30 centimetres and 15 centimetres respectively and so constructed as to prevent slipping;(d)have suitable provisions as far as practicable, for preventing the ladder from twisting; and(e)have bottom tread within the safe distance of the lower landing place.
