Fall Protection & Working from Heights Awareness

Across every province, territory, and federally regulated workplace, fall protection is generally required once a worker could fall 3 metres or more - a threshold harmonized nationally by 2019. However, the 3-metre rule is only part of the picture: protection is also required below that height whenever a fall could cause serious injury because of what is below, such as rebar, machinery, a liquid, or an opening. Alberta's OHS Code s. 139, BC OHS Regulation s. 11.2(1), and Ontario O. Reg. 213/91 s. 26.1 all include a "risk of injury" catch-all that can trigger requirements at much lower heights. Many fatal falls in Canada occur below the 3-metre threshold, which is exactly why that catch-all exists.

No - and the distinction matters legally. Ontario O. Reg. 297/13 ss. 6–8 requires construction workers who use a fall-protection system to complete a CPO-approved Working at Heights program from a CPO-approved provider, totalling a minimum of 6.5 hours including at least 3.5 hours of hands-on practical training. eLearning is not permitted for the practical module, and the certification is valid for 3 years. Newfoundland and Labrador has a similar requirement under the WorkplaceNL-prescribed fall-protection certification program (minimum 2 days, recertified every 3 years). This course is awareness and foundational training - it does not issue a CPO card or WorkplaceNL certificate, and it does not replace those approved-provider programs in those two jurisdictions.

Suspension trauma (also called orthostatic intolerance) occurs when a worker hangs motionless in a harness after an arrested fall. The leg straps compress the veins, blood pools in the legs, and return circulation to the heart and brain is reduced - a conscious, uninjured worker can lose consciousness and die within minutes. Calling 911 is not a rescue plan: by the time external responders arrive, it may already be too late. A written rescue plan must exist before harness work begins, with on-site capacity for self-rescue (suspension-relief straps) or assisted mechanical rescue. Quebec Decree 63-2025 (in force 2025), Canada OHS Regulations s. 12.15, and Alberta OHS Code s. 140 all require rescue procedures to be in place in advance.

Canadian regulations require employers to work down a hierarchy from most to least effective before reaching for personal fall arrest equipment. The order is: eliminate the fall hazard entirely (e.g., prefabricate at ground level), then passive protection like guardrails that protect everyone without any action from the worker, then travel restraint to keep workers away from the edge, and only then fall arrest as a last PPE-based resort. Alberta OHS Code Part 9 and BC OHS Regulation Part 11 both frame fall-arrest equipment as the option used when collective measures are not reasonably practicable. Harnesses and lanyards have many points of failure - incorrect donning, missed clip-in, inadequate clearance - which is why stronger controls that remove the hazard or protect workers automatically are always preferred.

All three carry distinct legal duties under Canada's Internal Responsibility System. Employers must ensure workers are trained (including hands-on practical and site-specific instruction), provide standards-compliant equipment, and have a written fall-protection plan with rescue procedures - duties established in Ontario OHSA s. 25, Alberta OHS Act s. 3(2), BC Workers Compensation Act s. 21(2)(e), and the Canada Labour Code Part II. Supervisors are legally responsible for ensuring the plan is actually followed, that workers are competent for the specific task, and that equipment is inspected - and they have authority to stop unsafe work. Workers must use the provided system correctly every time, inspect their equipment before each use, and report defects and hazards. A completion certificate establishes a starting point for competency; demonstrated hands-on performance under supervision is what the law actually requires.