(a)paragraph 2.3 is replaced by the following:‘2.3.the tightness of transverse or longitudinal bulkheads which are taken into account as effective to confine the assumed accumulated sea water in the compartment concerned in the damaged ro-ro deck shall be commensurate with the drainage system, and shall withstand hydrostatic pressure in accordance with the results of the damage calculation. Such bulkheads shall be at least 4 m in height unless the height of water is less than 0,5 m. In such cases the height of the bulkhead may be calculated in accordance with the following:
Bh = 8hwwhere:
Bh is the bulkhead height;
and hw is the height of water.
In any event, the minimum height of the bulkhead should be not less than 2,2 m. However, in case of a ship with hanging car decks, the minimum height of the bulkhead shall be not less than the height to the underside of the hanging deck when in its lowered position;’
(b)the Appendix entitled ‘Model test method’, is replaced by the text shown in Annex I to this Directive;
2.in Annex II, Part II, entitled ‘Model testing’, is replaced by the text shown in Annex II to this Directive.