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Falls of more than 3 m

In almost all workplaces, workers are exposed to falls from a height. These accidents are still too frequent, especially since they are easy to avoid.

In construction, there is a risk of falling when a worker erects structures, renovates or finishes exterior walls or installs a roof. In establishments and other workplaces, window washing, chimney sweeping, material handling activities and maintenance are also hazardous tasks.

Falls of more than 3 m are a hazard that can result in sprains, strains, multiple fractures and even death. The employer, by implementing safety measures, and the worker, by applying them, have a shared responsibility to ensure safety when working at a height.

Safety rules for all workplaces

 Zero tolerance

If this rule is not followed, the CNESST will stop the work and those at fault will be liable to criminal prosecution.

Zero tolerance sheet: Fall of more than 3 m

When workers are exposed to a fall of more than 3 m, the employer must install guardrails to prevent falls or use another means that ensures equivalent safety. If this is not possible, they must ensure that workers use a harness secured to an anchor point.

Other mandatory safety measures

Depending on the tasks to be performed, one or more of the following measures must be taken by the employer to ensure the safety of the worker:

Protective measures

  • Elevating platform
  • Guardrails
  • Net
  • Horizontal safety rail
  • Harness and fall arrest device

Laws and regulations