The hierarchy of controls identifies a preferred order of actions to best control hazardous workplace exposures. Elimination, substitution, and engineering controls are more effective because they control exposures without significant human interaction. Administrative controls and personal protective equipment can also be effective at reducing workers’ exposures to hazards. Controlling exposures to hazards in the workplace is vital to protecting workers. The hierarchy of controls is a way of determining which actions will best control exposures and must be followed from top to bottom.
The hierarchy of controls has five levels of actions to reduce or remove hazards. The preferred order of action based on general effectiveness is:
- Elimination
- Substitution
- Engineering controls
- Administrative controls
- Personal protective equipment (PPE)
Using this hierarchy can lower worker exposures, and reduce the risks of injury, illness or death.
