Hull Construction Regulations

153 (1) All surfaces, including their grounds, in concealed or inaccessible spaces in accommodation spaces, service spaces and control stations, all exposed surfaces in corridors and stairway enclosures and all exposed surfaces of ceilings in accommodation spaces, service spaces and control stations shall have low flame spread characteristics.

(2) Any paint, varnish or other finish used on an interior surface in an accommodation space, service space, control station or machinery space shall have low flame spread characteristics and shall not produce, when on fire, excessive quantities of smoke or any toxic fumes.

(3) The surface of the insulation on an interior boundary of a machinery space of Category A shall be impervious to oil and oil vapours.