WHS safe work method statements explained: what counts as high risk construction work, when a SWMS is required, what to include and how to keep it current.
Regulatory citation: Model Work Health and Safety Regulations, Chapter 6 (Regulations 291–303)
A safe work method statement (SWMS) is a document that sets out high risk construction work activities, the hazards and risks arising from those activities, and the measures that will be put in place to control the risks. Under the model Work Health and Safety Regulations, a SWMS must be prepared before high risk construction work (HRCW) starts.
A SWMS forces a plan to be made before dangerous construction work begins, and gives supervisors and workers a clear, shared reference for how the work will be done safely. It also helps principal contractors coordinate multiple trades on the same site.
Regulation 291 lists the types of construction work that are high risk. They include construction work that:
Some jurisdictions vary this list, for example with different fall heights for housing construction.
The PCBU carrying out the HRCW must ensure a SWMS is prepared, or has already been prepared, before the work starts. It must be prepared in consultation with workers.
A SWMS must identify the work that is HRCW, specify the hazards and risks, describe the control measures, and describe how those measures will be implemented, monitored and reviewed. It must be easy to understand for the people who use it.
If work is not carried out in accordance with the SWMS, it must stop immediately, or as soon as it is safe to do so, and not resume until the SWMS is followed or revised.
The SWMS must be reviewed and, if necessary, revised when control measures change or aren't working, when a new hazard is identified, or at the request of an HSR.
The SWMS must be kept and made available for inspection until the HRCW is completed, and for longer if a notifiable incident occurs during the work.
On construction projects valued at $250,000 or more, the principal contractor must take reasonable steps to obtain SWMS from subcontractors before HRCW starts, and must include arrangements for managing HRCW in the WHS management plan.
A SWMS should reflect the actual site, task and controls, not a generic template copied from job to job.
Write in plain language, avoid unnecessary detail and make sure workers can read and understand it, including those with limited English.
Review the SWMS with the crew at a pre-start meeting, get their input and confirm everyone understands the controls.
A civil contractor is laying stormwater pipes in a 2.4-metre-deep trench beside a road. Because the work involves a trench deeper than 1.5 metres, work next to a road used by traffic and powered mobile plant, it is HRCW. The crew leader prepares a SWMS with the workers, covering trench shoring, traffic management, exclusion zones for the excavator and emergency rescue. The SWMS is reviewed at each morning pre-start and revised when groundwater is found.
Note: This summary is based on the model WHS laws published by Safe Work Australia. Most states and territories have adopted them with minor variations, while Victoria has its own OHS laws. Always check the legislation and codes of practice that apply in your jurisdiction.
A SWMS is required before any high risk construction work starts. HRCW includes construction work involving a risk of falling more than 2 metres, trenches deeper than 1.5 metres, work near energized electrical services, asbestos, confined spaces, powered mobile plant and work next to roads or railways, among other activities.
The PCBU carrying out the high risk construction work is responsible, and it must prepare the SWMS in consultation with the workers doing the work. On larger projects, the principal contractor must also take reasonable steps to obtain SWMS from subcontractors before the work begins.
Not exactly. A job safety analysis (JSA) is a general risk assessment tool that can be used for any task. A SWMS is a specific legal requirement for high risk construction work with required content. Many organizations use JSAs for other tasks and SWMS for HRCW.
This guide is for general information only and is not legal advice. Always check the current text of the regulation with the relevant regulator.
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