What HSWA actually asks of you
HSWA puts a primary duty of care on every person conducting a business or undertaking — a PCBU — to ensure, so far as is reasonably practicable, the health and safety of its workers and of anyone else put at risk by the work. It does not ask for a manual, a matrix or a folder. It asks you to know your risks, control them, involve the people doing the work, and be able to show that you did.
The PCBU is the business itself, not a person in it, and the duty cannot be contracted out of. Underneath it, the practical obligations fall into a short list — shorter than most consultants make it look.
- Provide and maintain a work environment, plant, structures and systems of work that are without risks to health and safety, so far as is reasonably practicable.
- Identify the risks your work creates, eliminate them where you can, and where you cannot, minimise them so far as is reasonably practicable.
- Provide the information, training, instruction and supervision people need to do the work safely, and monitor conditions and worker health where the risk calls for it.
- Engage with workers on the health and safety matters that affect them, and have practices that let them participate in improving it.
- Where duties overlap with another PCBU — a head contractor, a landlord, a labour-hire firm — consult, cooperate and coordinate with them.
- Notify WorkSafe of notifiable events, preserve the scene, and keep the records the Act requires.
The sentence worth taping to the wall
WorkSafe's own risk guidance makes the point plainly: paperwork is there to support good processes and control measures — it is not a substitute for having them. A thick folder and an unguarded machine is a failed duty with excellent documentation.
Reasonably practicable, in plain English
Reasonably practicable means what is reasonably able to be done in the circumstances. It is a weighing exercise with five ingredients, and cost is deliberately the last of them — it only gets you off the hook when it is grossly disproportionate to the risk, which is a much higher bar than expensive.
- 1.How likely is the harm? Not whether it has happened here, but whether it can.
- 2.How bad would it be? A low-likelihood, high-consequence risk still deserves a serious control.
- 3.What do you know, or ought to know, about the risk and the ways to control it? Industry guidance you could reasonably have read counts as knowledge you have.
- 4.Are suitable controls available? If a better control exists and is obtainable, the argument for the weaker one gets harder.
- 5.Is the cost grossly disproportionate to the risk? Only then does cost weigh against doing it.
This is the test an inspector applies after something goes wrong. The question will not be whether you had a procedure. It will be what you knew, what was available, and why you chose the control you chose — and the only evidence of that reasoning is what you wrote down at the time.
The duty nobody can delegate
Officers — directors, partners, board members, chief executives and anyone else who takes part in decisions that significantly affect the whole business — owe a personal duty of due diligence. It sits on the individual, not the company, and it is not satisfied by appointing a health and safety manager and reading a monthly report. The Act breaks it into six reasonable steps, which read as a governance agenda because that is what they are.
- 1.Acquire and keep up to date knowledge of work health and safety matters.
- 2.Understand the operation and the hazards and risks it generally involves.
- 3.Ensure appropriate resources and processes exist to eliminate or minimise those risks.
- 4.Ensure information about incidents, hazards and risks reaches the business and is responded to in a timely way.
- 5.Ensure there are processes for complying with the duties HSWA imposes.
- 6.Verify that the resources and processes in points 3 to 5 are actually provided and used.
Where officers get caught
Step six. Four and five are usually arguable from the minutes; verification almost never is. If a board has never asked to see evidence that a control is working — an overdue action list, a completed critical-risk check, the result of an investigation — it has assurance rather than verification, and they are not the same thing.
Worker engagement is a duty
Every PCBU must engage with workers on health and safety matters that affect them, and must have practices that give workers reasonable opportunities to participate effectively in improving health and safety on an ongoing basis. Both halves are duties in their own right, and they apply whatever the size of the business.
Representation — health and safety representatives, committees, or a union — is one way of discharging them, not a replacement for them. Any worker can request a representative, and HSWA sets out when a business has to act on that request, with the thresholds turning on worker numbers and whether the work sits in a designated higher-risk sector. Check current WorkSafe guidance for where your business falls rather than relying on a number someone repeated in a course.
Three things make engagement real rather than declared, and all three leave a record as a by-product.
- Workers can raise a hazard or a concern in under a minute, from where the work happens, without asking anyone for a form.
- Everything raised gets an owner and an answer — including the ones you decide not to act on, with the reason.
- The people affected are consulted before a control changes, not told afterwards.
If you want to know whether it is working, look at who raised the last ten items. If they all came from one office, the practices exist on paper only.
What you actually have to write down
Far less than most businesses think, and far more consistently. HSWA and its regulations specify particular records — notifiable event records must be kept for at least five years from notification, health monitoring and exposure records for considerably longer, and there are specific requirements around hazardous substances, plant and certain work. Beyond those, documentation exists to evidence that a duty was met.
Which reframes the question usefully. Do not ask what should we document. Ask what would I need to produce if an inspector arrived on Tuesday — then keep that, in one place, as the work happens.
- Your risks and their controls, with the last review date and a named owner. A register is not required by name; being able to show you identified and controlled the risk is.
- Training, induction and competence — who was trained, in what version, and how competence was judged. Attendance alone is the most common weak point.
- Plant and hazardous substances — maintenance, pre-start and inspection records, and the inventory, Safety Data Sheets and location records the regulations require.
- Engagement — toolbox talks, concerns raised, and what happened to each one.
- Incidents and their actions — including the effectiveness check, not just the closure.
- Contractor records — held by you, not by the contractor, and current at the date of the work.
What changes on 1 April 2027
The Health and Safety at Work Amendment Bill passed on 1 July 2026 and takes effect on 1 April 2027. The headline for most readers of this page is proportionate duties for small businesses: a business with fewer than 20 workers for at least nine months of a financial year will be required to manage critical risks ahead of other risks, rather than treating every risk as equal.
Critical risk is defined by reference to the hazards in Schedule 1A of HSWA, plus any hazard likely to result in death, a notifiable injury or illness, a notifiable incident, or an occupational disease. Officer duties are restated around governance, and landowners lose health and safety duties to recreational users except where the activity is connected to the work, or work is happening at the same time and place.
What to do about it now
Nothing dramatic. Work out which of your risks are critical, make sure those have named owners, current controls and a verification step, and be able to show it. That is good practice today and the statutory expectation from April 2027. The detail is still settling, so confirm against current WorkSafe guidance before you rewrite anything.
A system that maintains itself
The reason small businesses drown in paper is not that HSWA demands it. It is that a folder-based system has to be maintained by a person remembering to maintain it, and that person is also doing their actual job. The fix is not more discipline — it is putting the record where the work already happens, so keeping it is a by-product rather than a task. Five steps get you there.
- Step 1Name your critical risks. Usually between three and eight. Anything that could kill or permanently harm someone, written in the language the crew uses, not clause language.
- Step 2Give each one an owner and a control you can check. "Be careful" is not a control. "The guard is in place and checked at pre-start" is, because someone can verify it.
- Step 3Make reporting one-handed. If raising a hazard takes a laptop and a login, hazards stop being raised — and the engagement duty quietly fails.
- Step 4Let the chasing be automatic. Expiring tickets, overdue actions, due reviews and scheduled checks should escalate without anybody reading a spreadsheet on a Friday.
- Step 5Verify once a quarter, at governance. Pick one critical risk, ask for the evidence its control worked, and minute what you saw. That is officer due diligence, done.
None of this requires software. It requires that the evidence exists where the work happens and can be produced without a search. Spreadsheets do that perfectly well for a small single-site operation, and stop doing it at the point where chasing becomes somebody's job.
Questions we get asked
Does HSWA require a documented health and safety system?
Not as such. HSWA sets out duties and outcomes — eliminate or minimise risk so far as is reasonably practicable, engage workers, keep specific records — rather than prescribing a manual. WorkSafe’s own guidance is blunt about it: paperwork supports good processes, it does not substitute for them. Records matter because they demonstrate a duty was met, not because volume is scored.
What does “so far as is reasonably practicable” actually mean?
It means what is reasonably able to be done, judged by weighing the likelihood and severity of the harm, what you know or ought to know about the risk and the ways of controlling it, the availability and suitability of those controls, and whether the cost is grossly disproportionate to the risk. Cost is the last factor, and it only excuses you when it is grossly out of proportion.
Who counts as an officer, and what do they personally have to do?
Officers are the people who make or take part in making decisions that significantly affect the whole business — directors, partners and senior executives of that kind. They owe a personal due-diligence duty: keep up to date on health and safety, understand the operation and its hazards, ensure resources and processes exist to manage risk, ensure incident and hazard information reaches them and is acted on, ensure processes for complying with duties, and verify all of it is actually in place.
Do we have to have a health and safety representative?
Any worker can ask for one, and HSWA sets out when a business must then act on that request; the thresholds turn on worker numbers and whether the work is in a designated higher-risk sector. Separately, and regardless of size, every PCBU must engage with workers on health and safety matters that affect them and have practices that give workers reasonable opportunities to participate. Representation is one route to that duty, not the duty itself.
What is changing on 1 April 2027?
The Health and Safety at Work Amendment Bill passed on 1 July 2026 and takes effect on 1 April 2027. Its headline change is proportionate duties for small businesses — fewer than 20 workers for at least nine months of a financial year — who will be required to manage critical risks ahead of other risks. Officer duties are also restated around governance. Check the current WorkSafe guidance before you change anything, because the detail is still bedding in.
General guidance on New Zealand's Health and Safety at Work Act 2015, its regulations, and the Health and Safety at Work Amendment Bill passed on 1 July 2026 and in force from 1 April 2027. Duties, thresholds and retention periods should be verified against the current legislation and WorkSafe guidance for your circumstances. This is not legal advice.

