Spaces not for passenger accommodation
15.  The following spaces shall not be used to accommodate passengers:
(a)any space between the side of any deckhouse and the inner edge of the waterway, bulwark, rails or any other deckhouse which is less than 0.75 metre in width;
(b)any space which is always or occasionally used for the purposes of navigation;
(c)any part of a bridge deck which extends beyond the sheer strake of the ship;
(d)any space between decks in which the height from the floor to the deck above is less than 1.80 metres;
(e)any space not fitted for the carriage or accommodation of passengers;
(f)any deck which is more than one deck below the subdivision load line mark at any portion of the length of the ship;
(g)the lower hold of the ship and any space which is for the storage of cargo or lighted and ventilated by hatchways only;
(h)any area occupied by hatchways, sky-lights, machinery casings, windlass, stairways, aisles and spaces used for navigation or the storage of cargo or equipment; and
(i)any other space which in the opinion of the Director is not suitable for the carriage or accommodation of passengers.