Methods of fire protection
72. One of the following methods of protection shall be adopted in the accommodation and service spaces—
(a)Method IC—The construction of all internal divisional bulkheading shall be of non-combustible “B” Class divisions or “C” Class divisions without the installation of an automatic sprinkler, fire detection and fire alarm system in the accommodation and service spaces, except as required by regulation 82; or
(b)Method IIC—An automatic sprinkler, fire detection and fire alarm system as required by regulation 82 shall be fitted in all spaces in which fire might be expected to originate with no restriction on the type of internal divisional bulkheading; or
(c)Method IIIC—A fixed fire detection and fire alarm system, as required by regulation 82 shall be fitted in all spaces in which a fire might be expected to originate with no restriction on the type of internal divisional bulkheading, except that in no case shall the area of any accommodation space or spaces bounded by continuous “A” Class divisions and/or “B” Class divisions exceed 50 square metres subject to the requirements of regulation 73(4).