.-Petroleum may be carried in deck in steamer or motor-vessels not specially built for the carriage of petroleum, subject to the following conditions, namely:-(a)in cargo ships petroleum Class A shall not occupy more than 50 per cent. of the open deck area and shall be so stowed as not to interfere with the navigation of the ship or make it unseaworthy;(b)in passenger ships a limited quantity of petroleum Class A may be carried provided that proper precautions are taken regarding stowage and keeping the packages away from passengers, promenade or deck space;(c)the petroleum shall be protected from the direct rays of the sun by the use of canvas awnings or otherwise; and(d)conspicuous notices shall be posted up, drawing attention to the danger arising from smoking or striking matches near the deck cargo.
