Hull Construction Regulations

77 In the case of ships of 500 tons, gross tonnage, and over,

• (a) the skylights to spaces containing main propulsion machinery, or oil-fired boilers or auxiliary internal combustion type machinery of a total power of 746 kW (1 000 HP) or over, shall be capable of being closed and, where practicable, opened from outside the space in the event of fire and, where they contain glass panels, such panels shall be of fire-resisting construction fitted with wire reinforced glass and shall have external permanently attached shutters of steel or other equivalent material;

• (b) windows shall not be fitted in engine casings except where the Board is satisfied that they are necessary and will not constitute a fire hazard and, where they are fitted, they shall be of a non-opening type and shall be of fire-resisting construction fitted with wire reinforced glass and shall have external permanently attached shutters of steel or other equivalent material; and

• (c) the requirements of section 40 for exhibition of fire control plans shall apply as far as applicable to non-passenger ships.