Hull Construction Regulations

39 The Board may exempt from any of the provisions of sections 44 to 51 and 52 to 56 any ship of Class I or Class II carrying not more than 36 passengers if it is satisfied that the ship is fitted with an efficient fire detection system complying with the requirements of section 57, capable of giving a visible and audible alarm signal at one or more points in the ship so as to come rapidly to the notice of the master and the crew of the ship, which will indicate the presence and position of any fire in any accommodation space or service space, other than a space that, in the opinion of the Board, affords no substantial risk.