5Without prejudice to the generality of paragraph 1 above, standards prescribed under section 17 of this Act and this Part of this Schedule may make provision—
(a)with regard to the construction, maintenance and operation of engines used for the propulsion of powered boats and to the storage and supply of fuel for such engines;
(b)requiring the provision of sufficient and effective fire extinguishers;
(c)regulating appliances for cooking, heating, lighting or refrigeration and the storage and supply of fuel for such appliances.