A PCBU ensures hazardous chemicals used, handled or stored at the workplace are correctly labelled under r 335 (with transitional allowances for older NOHSC and GHS 3 labels), that chemicals manufactured at the workplace or transferred or decanted from their original container are correctly labelled, that containers storing hazardous chemicals stay correctly labelled so far as reasonably practicable while they contain the chemical, that a container labelled for a hazardous chemical is used only for that chemical (except containers used immediately and then thoroughly cleaned), and that chemicals in pipe work are identified by a label, sign or other means on or near the pipe work so far as reasonably practicable.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.