Guide 3 of 5 · Mental health
Psychosocial hazards and an officer’s due diligence
A psychosocial hazard is anything that could cause psychological harm, and under the model WHS laws a business “must eliminate psychosocial risks, or if that is not reasonably practicable, minimise them so far as is reasonably practicable.” SafeWork NSW’s code adds the officer’s part: “Each officer of the PCBU must separately take reasonable steps to meet their due diligence obligations concerning psychosocial hazards to health and safety.”
General information, not legal advice. The official places to check are Safe Work Australia’s psychosocial hazards page and the WHS regulator in your state or territory, which can say which code of practice has legal effect there.
Which code
A model code, and the codes that have force
Safe Work Australia publishes a model Code of Practice on managing psychosocial hazards at work. It is careful about what that code is:
“To have legal effect in a jurisdiction, the model Code of Practice must be approved as a code of practice in that jurisdiction. Check with your WHS regulator to find out if this Code of Practice has legal effect in your jurisdiction.”
Safe Work Australia, Model Code of Practice: Managing psychosocial hazards at work
The sources this guide holds describe four:
| Where | Instrument | What the regulator says about it |
|---|---|---|
| Model laws | Model Code of Practice: Managing psychosocial hazards at work | Practical guidance for businesses; legal effect only once approved in a jurisdiction. |
| New South Wales | Code of Practice: Managing psychosocial hazards at work | Its section on who has duties covers businesses, officers, workers and other persons at the workplace, citing sections of the WHS Act 2011. |
| Queensland | Managing the risk of psychosocial hazards at work Code of Practice 2022 | WorkSafe Queensland said the code and the amended psychosocial regulations would be enforceable from 1 April 2023. The code has since been amended for dispute and issue resolution processes and timeframes and for sexual harassment provisions, with those updates taking effect from 1 September 2026. |
| Victoria | Occupational Health and Safety (Psychological Health) Regulations | WorkSafe Victoria says the regulations commenced on 1 December 2025. |
WorkSafe Queensland explains how a code works under its Act: a duty holder must comply with an approved code so far as is reasonably practicable, or follow another method that gives an equal or higher standard of health and safety.
The officer
What SafeWork NSW’s code expects of an officer
Under the heading for section 27, SafeWork NSW sets out what the officer’s separate duty means for psychosocial hazards. In its words, “an officer must, for example:”
- “understand their WHS legal duties
- understand the nature of the PCBU’s operations and the hazards and risks associated with those operations
- have a method to stay up to date on WHS matters of their organisation including psychosocial hazards
- ensure the PCBU is allocating the financial and human resources and is developing the systematic health and safety management processes required to eliminate or minimise psychosocial risk so far as is reasonably practicable; and
- take active measures to ensure that the above processes have occurred and are effective.”
SafeWork NSW, Who has duties to manage psychosocial hazards at work?, section 2.2
The code then gives examples of an officer doing this. Summarised, an officer in its examples:
- understands their own and others’ WHS duties, such as the business’s primary duty of care and its requirement to consult affected workers;
- keeps up to date on WHS in the business and the industry, including new and emerging issues, through information sessions, publications and internal reports;
- knows the common psychosocial hazards in the organisation and gathers their own information about them;
- refers to what the guidance says on managing psychosocial hazards at work;
- checks that the organisation has processes for known and emerging psychosocial hazards, enough resources for them, and effective consultation, cooperation and coordination, for example by periodically visiting sites to talk with workers and supervisors about hazards;
- checks the safety management approach and its performance indicators, seeks out their own information on WHS performance, and insists that reports reach them promptly and their feedback is acted on;
- takes active measures rather than waiting for information, for example by requesting information on risk assessments and incident notifications.
On relying on others, the code is direct: “This duty requires officers to actively seek out relevant knowledge and understanding to make a decision or take action. In some circumstances, that may mean they need to rely on others’ information.” Where that happens, it says, “they should verify the credibility and appropriateness of the sources of information.”
The business
The business duty the officer is watching
Due diligence is about making sure the business meets its own duty, so the officer needs to know what that duty asks. SafeWork NSW’s code describes it this way for New South Wales:
- “A PCBU has the primary duty to ensure, so far as is reasonably practicable, the health (including psychological health) and safety of each worker who is engaged, caused to be engaged, influenced or directed by the PCBU while the worker is at work in the business or undertaking.”
- It must first try to eliminate psychosocial hazards, and only if that is not reasonably practicable, minimise the remaining risks so far as is reasonably practicable.
- “The PCBU’s duty to workers includes ensuring the health and safety of workers from harmful acts from third parties, such as clients, patients or their families, and students in educational institutions.”
One line in the code speaks plainly to the people who set a business’s goals. In its words: “The PCBU’s goal to produce a product or provide, for example, a particular model of patient care, achieve particular educational outcomes for students, or a focus on customer service, cannot override the duty that the WHS Act 2011 places on the PCBU to ensure, so far as is reasonably practicable, the WHS of their workers and others.”
Safe Work Australia lists fourteen common psychosocial hazards on its psychosocial hazards page, and warns that hazards can interact or combine to create new, changed or higher risks. The step of due diligence about receiving and responding to information on hazards is step (d) in due diligence in six steps.
Workers are part of finding these hazards. In Queensland, WorkSafe Queensland says workers and any health and safety representatives must be consulted when psychosocial hazards are being identified, and the wider duty to consult is set out in consulting workers on safety.