Division .1 In ships carrying not more than 36 passengers and in ships with a length of less than 24 metres there shall be installed throughout each separate zone, whether vertical or horizontal, in all accommodation and service spaces and in control stations, except spaces which afford no substantial fire risk such as void spaces, sanitary spaces, etc., either:F1

a fixed fire detection and fire alarm system of an approved type and complying with the requirements of Regulation II-2/A/9 and so installed and arranged as to detect the presence of fire in such spaces, however in new class B, C and D ships constructed on or after 1 January 2003 providing smoke detection in corridors, stairways and escape routes within accommodation spaces, or,

an automatic sprinkler, fire detection and fire alarm system of an approved type complying with the requirements of Regulation II-2/A/8 or with the IMO guidelines for an approved equivalent sprinkler system as given in IMO Resolution A.800(19) and so installed and arranged as to protect such spaces and, in addition, a fixed fire detection and fire alarm system of an approved type and complying with the requirements of Regulation II-2/A/9 and so installed and arranged as to provide smoke detection in corridors, stairways and escape routes within accommodation spaces.