Hazard Guide
Identifying, Assessing, and Controlling Hazards

Evaluate Likelihood


Assess how likely it is that the hazard will result in harm to a worker. Consider these key questions:

Who Might Be Harmed?

Identify all workers who could be exposed to the hazard. Is it everyone on site, or just specific crews?

How Many Workers Are at Risk?

Count the number of workers who might come into contact with the hazard. More workers mean higher likelihood.

How Often Do Workers Face the Hazard?

Is this a daily task or a rare occurrence? Frequent exposure increases likelihood.

How Long Are Workers Exposed?

Consider if it's a quick job or a task that takes hours. Longer exposure time raises the risk.

Are Current Safety Measures Working?

Look at existing controls. If they're not effective (e.g., missing guards, ignored procedures), the likelihood of an incident goes up.

What Could Make an Incident More Likely?

Think about job site conditions, time pressures, or other factors that might increase the chances of something going wrong.

Are you aware of this happening previously in your company or industry?

Based on your answers, rate the likelihood using the scale in your selected matrix.