At a glance
- New Zealand's Health and Safety at Work Amendment Act 2026 received Royal Assent on 9 July 2026, with most provisions due to come into force on 1 April 2027.
- The reforms introduce a new focus on 'critical risks' that could cause death, serious injury, serious illness, occupational disease, or other notifiable incidents, requiring Persons Conducting a Business or Undertaking (PCBUs) to prioritise the prevention of serious harm.
- A new category of small PCBUs, generally those with fewer than 20 workers, will be subject to a narrower range of health and safety obligations centred on critical risks and basic welfare facilities.
- The legislation clarifies the allocation of health and safety responsibilities, including a clearer distinction between governance and operational duties, revised due diligence requirements for officers, and limited duties for landowners in relation to recreational users.
- Businesses should begin preparing for implementation by identifying critical risks, reviewing governance arrangements, and assessing the relevance of Approved Codes of Practice (ACOPs), despite the possibility of further political debate before the reforms take effect.
New Zealand has enacted its most significant health and safety reforms since 2015 through the Health and Safety at Work Amendment Act 2026. The legislation received Royal Assent on 9 July 2026 and, subject to limited exceptions, most changes will come into force on 1 April 2027.
The reforms are designed to refocus the health and safety regime on preventing serious harm in the workplace. Central to this approach is the introduction of the concept of 'critical risks' – risks that could result in death, serious injury, serious illness, occupational disease, or other notifiable incidents. PCBUs will be expected to prioritise the identification and management of these risks.
The Act also introduces a new category of small PCBUs, generally those with fewer than 20 workers. These organisations will be subject to a reduced set of health and safety obligations that focus primarily on managing critical risks and providing basic welfare facilities.
In addition, the reforms clarify that landowners will generally not owe health and safety duties to recreational users of their land, with responsibility instead resting primarily with those conducting the recreational activity. The legislation also provides a clearer separation between governance and operational responsibilities, accompanied by refinements to officers' due diligence obligations.
The role of ACOPs will be expanded under the new framework. Compliance with an applicable ACOP may provide a form of 'safe harbour' protection, increasing the importance of identifying and implementing relevant codes within an organisation's health and safety arrangements.
Ahead of the 1 April 2027 commencement date, businesses should review their health and safety frameworks to identify critical risks, determine whether they qualify as a small PCBU, assess how duties are managed on shared worksites, and ensure governance and operational responsibilities are clearly defined. Employers should also consider which ACOPs may be relevant to their operations and whether these should be incorporated into their compliance programmes.
While the reforms are expected to take effect on 1 April 2027, they remain politically contentious and could be revisited following the next election. Nevertheless, organisations are advised to begin preparations now, particularly by identifying and evaluating their critical risks.
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