Hazard Identification and Risk Assessment Study | HIRA Safety Hazard identification and Risk Assessment study is the starting point of planning and implementing any structured safety management system. Once we have identified hazards and evaluate risks through HIRA, we can start planning for further controls and mitigation measures. HIRA Training is to be conducted for the persons who participate in HIRA Study. Furthermore, it must be carried out prior to a particular activity or task being carried out. An effective HIRA process helps to eliminate, reduce or suitably control occupational health & safety risks for the persons involved with (or affected by) the task and activity. A risk assessment should be reviewed periodically or in case of significant changes in the process or system which may affect the risk level. The periodicity is to be calculated proportionate to the level of risk involved. Relevant risk assessments should be reviewed following an accident or even an incident. This is required to verify whether the control measures and level of evaluated risk were appropriate or require modification.