7.1.1 Where an ice class notation is to be included in the class of a craft, the scantlings will require special consideration, see Pt 3, Ch 2, 9 Navigation in ice.
7.2.1 Changes in plating thicknesses in the longitudinal direction are to take place gradually.
7.2.2 In general all welded seams and butts in way of the main ice belt are to be dressed smooth.