What is a JSA? (Job Safety Analysis)

A JSA (Job Safety Analysis) is a risk assessment that breaks a task into steps, identifies the hazards in each step, and records the controls used to manage them. It is used across Australian industry to think a job through before it starts.

What is a JSA for?

A JSA exists to make hazards visible before work begins rather than after something goes wrong. The method is deliberately simple: list the steps in order, ask what could cause harm at each step, then decide what will be done about it. Because it is a general method rather than a prescribed form, it can be applied to almost any task, in any industry.

It is also a consultation tool. Work health and safety law across Australia requires businesses to consult workers on matters that affect their health and safety, and working through a JSA with the crew doing the job is one of the common ways that happens.

What does a JSA contain?

Most JSAs set out:

• The task, the location and the date
• The steps involved, in the order they are carried out
• The hazards present at each step
• The controls for each hazard, following the hierarchy of controls
• Who is responsible for each control
• The plant, equipment, licences and personal protective equipment involved
• Space for the workers involved to sign on

A risk rating before and after controls is common, though nothing in the legislation requires one.

Is a JSA a legal requirement?

No. A JSA is not named in the model Work Health and Safety Regulations, and no Australian jurisdiction requires a document called a JSA. What the law does require is that hazards are identified and risks are eliminated so far as is reasonably practicable, or minimised where elimination is not possible. A JSA is one recognised way of showing that thinking was done.

That is the difference worth understanding. A SWMS is required by regulation before high-risk construction work starts. A JSA is voluntary in law but frequently mandatory in practice, because principal contractors, head contractors and clients ask for one as a condition of working on their site.

What is the difference between a JSA, a SWMS and an SWP?

These three get used interchangeably on site, and they are not the same thing.

• A SWMS is a regulated document for the 19 categories of high-risk construction work. It must be prepared before that work starts and kept available while it is carried out.
• A JSA is a general risk assessment method. It is not limited to construction and not limited to high-risk work.
• A Safe Work Procedure or SOP is a step-by-step instruction for operating a piece of plant or carrying out a routine task, written once and used repeatedly.

A JSA is sometimes called a JSEA (Job Safety and Environmental Analysis) where environmental impacts are assessed alongside safety ones. The method is the same with an extra column. We go through the comparison in more detail in SWMS vs JSA.

Who writes a JSA and when?

The people doing the task, with their supervisor. A JSA written in an office by someone who has not seen the job tends to miss the hazards that matter, and the crew has no reason to follow it. It is normally completed before work starts, reviewed at the toolbox meeting, and revisited if the task, the site or the conditions change.

There is no set review period in law. Common practice is to review when something changes, after an incident or near miss, and at a set interval such as annually.

How do you get a JSA?

You can write one from a blank page, though most businesses start from a template written for the task and adapt it to the site. Ours are editable Word documents covering the steps, hazards and controls for a specific job, ready to be completed with your own site details by a competent person. Browse the JSA library, or see the trade packs if you also need SWMS for high-risk construction work.

This guide is general information, not legal or safety advice, and does not guarantee compliance. Laws and site conditions vary, so always check your state regulator and have documents reviewed by a competent person.