Reasonably practicable

Reasonably practicable means considering:

  • the level of risk,
  • what you know about how to control it, and
  • the cost in relation to the level of risk.

This does not mean that if the control is too expensive it can be dispensed with: where the risk of death or serious injury exists, the question should be whether the job is worth the risk.

If you can’t eliminate the risk, then you must minimise it as far as is reasonably practicable. You need a process for assessing and managing the risks of all hazards, but not every hazard requires a formal process.

Five steps to managing onsite risks

If you are just starting, begin with the major risks that could cause serious injury or death. The following steps will help create your risk management strategies

A risk matrix is a useful tool to work out the level of risk

Risk assessment matrix: Likelihood and severity

A risk assessment matrix turns two questions into one rating. How likely is it that someone gets hurt? How severe would the injury be? Find where your two answers meet on the grid and you have your risk level.

A rare event with a minor injury sits low. A likely event that could kill sits high and gets your attention first. Use the same matrix across the site so everyone rates hazards the same way.

Other useful stuff

Frequently asked questions: Hazard management

What is hazard management?

It’s the process of finding hazards, working out how risky they are, putting controls in place and checking that those controls keep working. On a construction site, it covers everything from falls to dust exposure.

What’s the difference between a hazard and a risk?

A hazard is anything that could cause harm, like an unprotected edge. The risk is how likely that harm is and how serious it could be.

When do I need a task analysis?

Use one when a task is high-risk, covered by regulations or can’t have its hazard eliminated. A task analysis breaks the job into steps, lists the hazards in each and sets the controls. Our task analysis guide walks you through it.

Who is Site Safe?

We’re an industry-backed, not-for-profit organisation that has worked to lift health and safety in NZ construction since 1999. You’ll find us in Wellington, Auckland, Hamilton, Palmerston North, Christchurch and Dunedin.

Can I get help with hazard management?

Yes. Our free advice line puts you in touch with a qualified advisor for quick questions. Ask an Advisor and we’ll point you to the right next step.

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