The audit checks how contractors are selected, guidance on contractor safety and training, safety and welfare clauses in contracts as statutes require, enforcement of PPE use by contractor staff, contractors' own safety organization, reporting of all their accidents and injuries, training of contract workers in site safety, and whether contract workers in process operations know the safe operating procedures.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.