Healthcare and social assistance workplaces contain many hazardous chemicals, including cleaning products, drugs and anaesthetic gases, whose risks may be unknown or build up over time, and in homes may be less obvious or used unsafely. The PCBU must keep workers and others safe from the use, handling, generation and storage of hazardous chemicals, and has further duties: label all containers, store safely and inform workers, keep a current register that includes the current SDS for each chemical, display safety signs where identified as a control, ensure no one is exposed above an exposure standard and monitor the health of workers who handle, generate or store hazardous chemicals where there is significant exposure risk. The SDS comes from the manufacturer or importer, who must supply it at first supply and when updated. The PCBU must request one if it does not have it, always before use, and keep it current and accessible near the work, including for emergency workers. An SDS and register entry may not be needed for a consumer good used in small amounts consistent with household use and incidental to the work, such as a household cleaner used by a support worker, but is likely needed if used differently or in greater amounts.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.