A PCBU where high risk diving work is done ensures the fitness and competence of the divers and the way the work is done accord with AS/NZS 2299.1:2015 Occupational diving operations: Standard operational practice, and no person does high risk diving work without the qualifications, knowledge, skills and experience that Standard requires.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.