Regulation 41 obliges the PCBU to supply workers with adequate, accessible facilities: toilets, drinking water, places to wash and places to eat, all kept in working order, clean, safe and reachable. Bathrooms, for instance, should be properly ventilated, cleaned regularly and kept supplied with soap and hand drying so that good hygiene is possible, because facilities that are inadequate, badly maintained, poorly ventilated or dirty can themselves breed and spread biological hazards. Working out what is needed means looking at headcount, shift patterns, how people move about the site and when they need access, and at how workers out in the community or at remote sites, home care workers for example, will keep and eat their food, use a toilet and wash their hands during the day. Where the PCBU houses workers, as with seasonal fruit pickers or shearers on a station, it must, as far as is reasonably practicable, keep the premises in a state that does not expose occupants to health and safety risks, biological ones included, for example by providing cleaning products and a routine for regular bathroom cleaning.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.