Some chemicals must be biologically monitored, and the SDS should describe the monitoring needed and list known safe biological levels (also called biological limit values or exposure indices) with notations and their source, using the chemical identities from Section 3. Where the SDS recommends control banding (assigning a band, such as good hygiene practice, local exhaust ventilation or enclosure, from the classification and use), it should give enough detail to manage the risk and make the context and limits of the recommendation clear.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.