Control measures must be maintained so they remain fit for purpose, suitable for the nature and duration of work and installed, set up and used correctly, and reviewed and revised as necessary so the work environment is without risk so far as reasonably practicable (r 38). Review is needed when a control does not minimise risk so far as reasonably practicable, before a change likely to create a new or different risk, when a new or relevant hazard or risk is identified, when consultation shows a review is needed, or when an HSR who reasonably believes one of these has occurred and the control has not been adequately reviewed asks for a review. Common methods are inspection, consultation, testing and analysing records and data, with workers and HSRs consulted. Questions to ask include whether controls work in design and operation without creating new risks, all hazards have been identified, workers are involved and raising concerns, procedures are followed, training succeeded, frequency and severity of disorders are falling, planned alterations may expose workers to hazardous manual tasks, an incident occurred, or new information suggests controls are no longer the most effective.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.