Section 23(1) in The Merchant Shipping (Cargo Ship Construction And Survey) Rules, 1974
(1)In every ship, oil fuel provided for use in boilers or machinery shall have flash point of not less than 65.6°C (closed test):Provided that the Central Government may, subject to such conditions as it may impose-(a)permit any ship to use oil fuel having a flash point of not less than 54.5°C in boilers or of not less than 43.4 °C in internal combustion type machinery; and(b)permit the use of gaseous fuel in ships designed for the carriage of liquefied gas if such fuel results solely from evaporation of cargo carried.
