Western Australia replaces B2D5 so that the 45 degree and 50 degree limits apply to a new heated water installation, and to an existing installation where the same limits applied or where the installation is changed (water heater replaced or relocated, or an additional fixture added); it replaces B2D6 so that a thermostatic mixing valve or thermostatically controlled tap is used for the 45 degree cases, and varies B2D9, C1D3 and C2D4 and the referenced AS/NZS 3500 Parts 2 and 4 for Western Australia.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.