If you run a small business or work as a contractor in New Zealand, the health and safety rules you operate under have just changed. The Health and Safety at Work Amendment Act 2026 received Royal Assent on 9 July 2026, and the main changes take effect on 1 April 2027. This is the biggest shift since the Health and Safety at Work Act 2015 came in, and a lot of the coverage has been noisy and confusing. Here is the plain version, and what it actually means for the way you work.
What has actually changed
The Act does three things that matter to most of our clients.
First, it creates a new category called a small PCBU, which is a business with fewer than 20 workers. If you fall under that threshold, you will be required to manage your critical risks and provide basic workplace facilities, rather than manage every risk equally. Seasonal operations are counted on the number of workers you reasonably expect across the year, so a business that spikes over 20 in summer needs to think about that.
Second, the whole system is being refocused onto critical risks, meaning the things that can actually kill someone or cause serious injury or illness. The idea is to stop small operators drowning in paperwork for low level hazards and concentrate effort where the real harm sits.
Third, WorkSafe’s role is shifting. Its main function is moving from regulator to advisor, with more emphasis on helping businesses comply and prosecution reserved for clear cases of negligence. New tools such as formal warnings and enforceable undertakings give businesses a chance to fix problems without going through court.
Why less paperwork does not mean less risk
It is tempting to read all of this as permission to do less. That would be a mistake, for three reasons.
The people still die the same way. The law is narrowing what you have to document, not changing physics. Falls from height, machinery, vehicles, and hazardous substances still hurt people regardless of what the paperwork says. Your obligation to manage critical risks is now the sharp end of the law, and it is exactly the area where WorkSafe will still prosecute when things go wrong.
Your clients have not changed their rules. This is the part that catches contractors out. Pre-qualification schemes like IMPAC PREQUAL, SiteWise, SHE Pre-Qual and Totika are run by your clients and the industry, not by WorkSafe. They will still expect documented systems, evidence, and a current pre-qual status before you get on site. The law getting lighter does not make your prospective client’s procurement team any more relaxed. If you dismantle your system to save time, you can find yourself locked out of the work you were chasing.
The risk is moving down the supply chain. Because obligations are tied to headcount, a small specialist subcontractor may sit under the 20 worker threshold while the head contractor running a mixed site still carries the overlapping duty for everyone on that site. If you are the main contractor, you are likely to be asked to carry more, not less. If you are the subbie, expect your head contractors to ask for more proof that you have your critical risks under control.
What to do before April 2027
You have time, but not a reason to wait. Three practical steps.
Confirm whether you are a small PCBU, and count honestly across the year including seasonal peaks. That tells you which set of duties applies to you.
Identify your critical risks and make sure the controls are real, in use, and documented. This is where your effort should go, and it is what will hold up under both a WorkSafe visit and a client audit.
Keep the parts of your system your clients and pre-qual schemes rely on. Do not strip back records that win you contracts just because the law no longer strictly requires them. The goal is a leaner system focused on what matters, not no system at all.
Handled well, this reform is a chance to cut the busywork and put your energy into the risks that actually protect your people and your contracts. Handled carelessly, it is a quiet way to lose both.
If you would like a hand working out which duties apply to you, sorting your critical risks, or keeping your pre-qualification in good shape through the change, we can help. Get in touch with TSQA at [email protected] or call 021 125 8705.