A Safe Work Method Statement (SWMS) is one of the most common safety documents on Australian construction sites, and one of the most misunderstood. Some businesses write one for every task. Others copy the same generic template from job to job and hope nobody looks too closely. Neither approach does what the law intends.
This guide explains when a SWMS is legally required in NSW, what it must contain, who is responsible for it, and how to write one that actually helps on site.
Key takeaways
- A SWMS is required before any high risk construction work starts.
- It must identify the work, the hazards and risks, the control measures, and how those controls will be implemented, monitored and reviewed.
- It must be prepared in consultation with the workers involved and be easy for them to understand.
- On a construction project, the principal contractor must have it before the work begins.
- A generic SWMS that doesn’t match the actual work protects nobody, including you.
What is a SWMS?
A SWMS is a document that sets out the high risk construction work to be carried out, the hazards and risks arising from that work, and the measures that will be used to control those risks. In NSW, the requirements are in the Work Health and Safety Regulation 2025, which replaced the 2017 Regulation in August 2025.
A SWMS is not a full risk assessment, and it doesn’t replace your WHS management plan or safe work procedures. It is a practical, activity-level document that supervisors and workers use to confirm the right controls are in place before and during the work.
When is a SWMS legally required?
A SWMS must be prepared before high risk construction work starts. Under the WHS Regulation, high risk construction work is construction work that involves:
- A risk of a person falling more than 2 metres
- Work on a telecommunication tower
- Demolition of an element of a structure that is load-bearing or otherwise related to its physical integrity
- Work that involves, or is likely to involve, disturbing asbestos
- Structural alterations or repairs that require temporary support to prevent collapse
- Work in or near a confined space
- Work in or near a shaft or trench deeper than 1.5 metres, or a tunnel
- The use of explosives
- Work on or near pressurised gas distribution mains or piping
- Work on or near chemical, fuel or refrigerant lines
- Work on or near energised electrical installations or services
- Work in an area that may have a contaminated or flammable atmosphere
- Tilt-up or precast concrete work
- Work on, in or next to a road, railway, shipping lane or other traffic corridor in use by traffic other than pedestrians
- Work in an area where there is movement of powered mobile plant
- Work in an area with artificial extremes of temperature
- Work in or near water or other liquid that involves a risk of drowning
- Diving work
If your work involves any of these, you need a SWMS for that part of the work. Activities that aren’t high risk construction work don’t have to be included, although many businesses use a similar format for other higher-risk tasks. Always check the current Regulation or SafeWork NSW guidance for the exact wording.
What must a SWMS include?
At a minimum, a SWMS must:
- Identify the high risk construction work
- Specify the hazards relating to that work and the risks to health and safety
- Describe the measures that will be used to control those risks
- Describe how the control measures will be implemented, monitored and reviewed
- Be set out and expressed in a way that is readily accessible and understandable to the people who use it
A good SWMS also records the business name and contact details, who is responsible for implementing and monitoring it, the principal contractor and site address on a construction project, the date it was prepared and reviewed, and the workers who were consulted.
Control measures need to be specific. “Use appropriate PPE” or “take care” are not controls. A useful control tells a worker exactly what is in place, for example: “Edge protection installed on all open edges before roof sheeting starts, checked daily by the leading hand.”
Who prepares the SWMS?
The business (PCBU) carrying out the high risk construction work must make sure a SWMS is prepared before the work starts. For subcontracted work, that is usually the subcontractor, not the builder.
On a construction project, the SWMS must take the principal contractor’s WHS management plan into account, and the principal contractor must take reasonable steps to obtain the SWMS before the work begins. Where several businesses are working in the same area, they need to consult, cooperate and coordinate so their SWMS don’t conflict.
The SWMS must be prepared in consultation with the workers who will do the work, and their health and safety representatives if there are any. The people doing the job are usually the best source of information about where it can go wrong.
Keeping, following and reviewing the SWMS
- Keep the SWMS available at the workplace, on paper or electronically, until the work is finished, so workers, supervisors and inspectors can see it.
- Make sure the work is done in line with the SWMS. If it isn’t, stop the work as soon as it is safe to do so, and don’t restart until it can be done in line with the SWMS, revising it if needed.
- Review and revise the SWMS when the work method, site conditions or controls change, and after an incident.
- If a notifiable incident occurs in connection with the work, keep the SWMS for at least two years after the incident.
Common SWMS mistakes
- One generic SWMS used across very different sites and tasks
- Hazards listed without specific, matching controls
- Relying on PPE and “be careful” instructions instead of higher-order controls such as edge protection, exclusion zones or isolation
- Workers signing a SWMS they haven’t read or can’t understand, including workers with limited English
- No review when the site, method or crew changes
- Principal contractors filing SWMS without checking them against the work actually being done
After an incident, the SWMS is often one of the first documents an inspector or lawyer asks for. In expert witness work, Karim regularly sees SWMS that were signed but never followed, or that described a completely different method of work. A short, specific SWMS that matches what actually happens on site is worth far more than a thick generic one.
Need SWMS that hold up on site?
We prepare site-specific SWMS, JSAs and risk assessments with your team, and review subcontractor SWMS for principal contractors.
Frequently asked questions
Is a SWMS the same as a JSA?
No. A SWMS is a legal requirement for high risk construction work. A Job Safety Analysis (JSA) is a risk management tool you can use for any task. Many businesses use JSAs for non-high-risk tasks and SWMS for high risk construction work.
Do I need a new SWMS for every job?
You need a SWMS for any high risk construction work. The same SWMS can be reused for similar work, but it must be reviewed to make sure it fits the new site, conditions and crew.
Can a SWMS be electronic?
Yes, as long as workers, supervisors and inspectors can readily access it at the workplace.
What happens if we start work without a SWMS?
Starting high risk construction work without a SWMS is an offence under the WHS Regulation, and it leaves workers exposed. It can also weigh heavily against a business in any investigation or claim after an incident.
Sources and further reading
- SafeWork NSW: Prepare a safe work method statement
- NSW Legislation: Work Health and Safety Regulation 2025
- WorkSafe Queensland: Safe work method statements guide
This article is general information only and is not legal advice. Last reviewed October 2026.