What is difference between type A and type B ship ?

Ships are divided into types ‘A’ and ‘B’.

Type ‘A’ ships are those which are designed to carry only liquid cargoes in bulk, and in which the cargo tanks have only small access openings closed by watertight gasketed covers of steel or equivalent material.

These vessels benefit from the minimum assignable freeboard. All ships which do not come within the provisions regarding Type ‘A’ ships are considered as Type ‘B’ ships.

As a considerable variety of ships will come within the Type ‘B’ category, a reduction or increase from the basic table Type ‘B’ freeboard is made in the following cases:


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