Control measures are to mitigate hazards and protect people and properties. An effective control system eliminates or reduces workplace hazard and thereby ensuring a safe working system.

Hierarchy of Hazard Control Measures

The hierarchy of hazard controls are

• Elimination controls.
• Substitution controls.
• Engineering controls.
• Administrative controls.
• Personal Protective Equipment.

Elimination controls: This is the most effective control method, it involves physically removing the hazard.

Substitution controls: This is the second most effective method of hazard control, it involves substituting a high hazardous material with a less hazardous material and thereby reducing the risk level a worker is being exposed to.

Engineering controls: This is the third most effective method of hazard control, it involves preventing contact with the risk e.g. covering of moving machine parts in operation, installation of guards.

Administrative controls: This is the fourth most effective method of hazard control, it involves training of staffs, provision of signage etc.

Use of Personal Protective Equipment (PPE): This is the least effective method of hazard control, it involves making use of protective equipment such as hand gloves, helmet, etc.

One or a combination of any of these control measures will ensure a safe working environment. A safe working environment will ensure workplace productivity.

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