If you spend any time in the world of occupational health and safety – whether you’re looking to get into the field, a practicing professional, or a supervisor responsible for the safety of your people – you’ll quickly realize how often the term “hazard” is used. But here’s a critical question: are we all using the word “hazard” in the same way? Talk to any crew and you’ll quick find this is most likely not the case.  Okay, but does it matter? From my experience, the answer here is unequivocally yes. Properly defining what a “hazard” is – and ensuring that definition is consistently applied – forms the very foundation of effective workplace safety. Let’s explore why this is so important, and what can go wrong if we get it wrong.

Clarity Leads to Actionable Safety

At its core, a hazard is “a situation, condition, or thing that may be dangerous to the safety or health of workers.”[1] This might sound simple, but it has a clarity that empowers us to carry out genuinely effective assessments and implement targeted controls. When we identify something as a hazard, it should be because it has the inherent potential to cause harm – not because it’s a result, an activity, or a risk in itself.

Without a clear, shared understanding, the door is left wide open for confusion. I have seen countless hazard assessments where the “hazard” listed is actually an incident (for example, “slip/trip/fall”), an activity or task (“driving”), an absence or deficiency (“missing guard”), a possible root cause (“lack of supervision”), or even a risk (“risk of falling”). This fuzziness in language leads straight to fuzziness in action.

Why Definitions Matter

Why does this matter? Because when we fail to define and identify hazards accurately, the whole process of risk management is compromised.

• If a hazard assessment lists “slips/trips/falls” as a hazard, what exactly are we controlling? The floor? The worker’s shoes? The activity of walking? By contrast, if the actual hazard is “wet floor in entranceway,” the controls become much clearer: install mats, improve drainage, fix leak, or ensure prompt cleaning. Vague hazard definitions lead to vague controls, which are unlikely to be effective.
• Controls are only as good as the hazards they’re meant to address. When the hazard is misidentified, controls may miss the mark entirely. For instance, if “driving” is listed as a hazard, you might end up focusing on driver behavior rather than addressing specific hazards like “icy roads,” “fatigue,” or “poorly maintained vehicles.” The result? Continued incidents, even as the paperwork shows you’ve done your due diligence.
• When hazards are not clearly defined, it’s difficult to assign responsibility or measure the effectiveness of interventions. Everyone becomes responsible for everything, which usually means no one is responsible for anything.
• The ultimate indicator: when common injuries aren’t decreasing, or even start to trend upward, it’s time to look at the basics. Sometimes the real culprit is a systemic misunderstanding of what a hazard actually is.

Consider some “fuzzy” hazards that frequently appear in assessments, and what may the be actual hazards. Which is easier to manage – the “lazy” hazard or the actual, potential hazard? Where would your efforts be better spent if you want to reduce incidents?

“Fake” Hazard	Actual Potential Hazards
Slip / Trip / Fall​	Ice on walkway, objects on shop floor, etc.
Driving​	​Bad weather, driver distraction, wildlife, etc.
Missing Guard​	Moving parts, ejection of material, noise, etc.
Risk of Falling	Heights, working at heights, etc.
Electrocution​	Live electrical circuit, inexperienced worker, etc.
Confined Space Entry​	Hazardous atmosphere, limited entry/exit, etc.
Lack of Supervision​	Inexperienced worker(s), taking shortcuts, etc.

 

All occupational health and safety systems should be designed and intended to do only 3 things: 

1. 1. Identify hazards​

   2. Assess the risks associated with those hazards​

   3. Control those hazards according to their risk 

If you don’t properly identify your hazards, how much confidence can you have in your assessments or controls?

 

Practical Strategies for Getting Hazard Identification Right

So, how do we ensure our hazard identification process is robust and reliable? Here are some practical strategies:

• Use the Definition Consistently: Whenever you’re about to label something as a hazard, ask yourself: Is this a situation, condition, or thing that could be dangerous to the safety or health of workers? If not, dig deeper.
• Train Everyone: Make sure everyone involved in hazard identification – from the front-line worker to the supervisor to the OHS committee – understands and applies the correct definition. This is especially important for new staff or those without a formal OHS background.
• Review and Revise: Periodically review your risk assessments and control plans. Are the hazards clearly defined? Are the controls specific to those hazards? If not, it’s time for a tune-up.
• Encourage Questioning: Create a culture where people are encouraged to question vague or unclear hazard statements. “What exactly do we mean by that?” should be a welcome question, not a nuisance.

Making the Shift: A Learning Opportunity for All

Whether you’re a student learning the fundamentals, a professional refining your practice, or front-line supervisor trying to keep it all together, the importance of properly defining “hazard” cannot be overstated. It is not just a matter of semantics – it is about the very real task of protecting people from harm.

By insisting on clear, practical definitions, you not only comply with regulatory expectations but also drive meaningful improvement in your workplace safety culture. The result? More effective controls, better outcomes, and safer, healthier workers.

 

How you identify, assess, and control hazards

defines safety in your workplace.

 

[1] Jobs, Skills, Training and Labour, Government of Alberta, Hazard Assessment and Control: A Handbook for Alberta Employers and Workers. Edmonton, Alberta (2015), page 1.