Risk hierarchy

The risk hierarchy of controls is a framework used in risk management to help prioritize and select appropriate measures for controlling risks. The hierarchy consists of five levels, each with a different type of control, arranged in a pyramid. The levels, in order of priority, are:

1. Elimination: The highest level of control is to eliminate the risk entirely. This can be achieved by removing the hazard or replacing it with a safer alternative.
2. Substitution: If elimination is not possible, the next best option is to substitute the hazard with a less hazardous one.
3. Engineering controls: Engineering controls involve modifying the work environment or equipment to minimize the risk. Examples include machine guards, ventilation systems, and noise barriers.
4. Administrative controls: Administrative controls are policies and procedures that help minimize the risk. Examples include training programs, warning signs, and job rotation.
5. Personal protective equipment (PPE): PPE is the last line of defense and should only be used when other control measures are not feasible or effective. Examples include safety glasses, gloves, and respirators