Where chemicals or any dangerous substance are handled on a major scale and could become airborne or reach rivers, lakes or soil to the harm of animal and plant life, the employer concerned installs equipment and apparatus for monitoring pollution of air, soil and water and has that monitoring carried out so that those media are kept safe from the undertaking, and keeps records of the monitoring available to an inspector.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.