Who Really Owns a Health and Safety Duty Under WHS Law?

One of the most persistent myths in workplace health and safety is that responsibility sits solely with the business owner. Under the WHS Act, that assumption is not only wrong, it is risky.

The reality is simple and confronting. Everyone in the workplace owes a health and safety duty.

This is intentional. WHS legislation is designed to reflect how work actually happens, with multiple people influencing risk, decisions and behaviour at the same time.

The Core WHS Principle: Duties Cannot Be Shifted

Under WHS law:

• Duties cannot be transferred to someone else.

• More than one person can hold the same duty at the same time.

• One person can hold multiple duties simultaneously.

This means you cannot contract out of responsibility, delegate it away or assume someone else has it covered. Each duty holder must meet their obligations to the extent they can influence or control the work.

This principle is critical for leaders to understand. It is also where many businesses unintentionally expose themselves.

The Four Types of WHS Duty Holders

WHS law recognises four broad categories of duty holders.

1. PCBUs
A PCBU is any person or entity conducting a business or undertaking, whether for profit or not. This includes sole traders, companies, partnerships and associations. If you run a business that engages workers, you are almost certainly a PCBU.

2. Officers of a PCBU
Officers are people who make or influence significant decisions. Directors, senior managers and others who affect financial or operational direction fall into this category. Officers have a positive duty to exercise due diligence, not passive oversight.

3. Workers
Workers include employees, contractors, subcontractors, labour hire workers, apprentices, students and volunteers. Workers must take reasonable care for their own safety and the safety of others and comply with reasonable instructions.

4. Others in the Workplace
This category captures everyone else who may be present, including visitors and customers. Even they owe duties while at a workplace.

Why This Matters in Practice

When everyone understands their duty, safety becomes embedded rather than imposed. When they do not, gaps appear. Incidents usually happen in those gaps.

Key takeaway - If you influence work, decisions or behaviour, you have a WHS duty. The question is not whether you have one, but whether you are meeting it.