Fall Protection vs Fall Arrest: The Difference

Last updated: March 2026

Your crew shows up to a roofing job. Harnesses on, SRLs clipped. Someone calls it "fall protection." Someone else calls it "fall arrest." The site super figures they mean the same thing.

They don't. And mixing up these terms can get your fall protection plan flagged, your equipment selection wrong, or your crew exposed to hazards you thought were covered.

Fall protection is the umbrella term for every system that prevents or manages falls at height. Fall arrest is just one specific type of fall protection: the system that catches a worker after a fall has already started.

Here's why the distinction matters, what Canadian regulations actually require, and how to make sure your site has the right system in place.

What Is Fall Protection?

Fall protection is not a single piece of equipment. It is the full range of methods, systems, and controls used to prevent workers from falling or to protect them if they do.

Fall protection follows a legally mandated hierarchy of controls, from elimination at the top down to fall arrest at the bottom. Employers must start at the highest level and work down, only moving to the next when the one above is not reasonably practicable. For a full breakdown of all six levels, see our fall protection hierarchy guide.

What Is Fall Arrest?

A fall arrest system catches a worker who has already gone over the edge. It does not prevent the fall. It stops the descent before the worker hits the ground or a lower surface.

A complete personal fall arrest system includes:

• Full body harness (CSA Z259.10-18): Must be a Class A harness at minimum. Body belts are explicitly prohibited for fall arrest under Alberta OHS Code s.142.1(b).
• Connecting subsystem: Either a shock-absorbing lanyard (CSA Z259.11-17) or a self-retracting device/SRL (CSA Z259.2.2-17).
• Anchor point: Alberta OHS Code requires a minimum of 16 kN or 2 times the maximum arresting force per attached worker (s.152). CSA Z259.16 sets a default of 22.2 kN (5,000 lbs) for non-engineered field-selected anchors. Either way, it is a significant structural requirement.
• Rescue plan: Mandatory. Alberta OHS Code s.140(2)(f) requires written rescue procedures for any worker suspended by a fall arrest system. Suspension trauma can cause death in under 30 minutes (CCOHS).

Fall arrest is the most complex option in the hierarchy. It involves the most equipment, the highest anchor loads, mandatory rescue planning, and real physiological risk if rescue is delayed. That is why Canadian regulations treat it as a last resort, not the default.

What Is Fall Restraint?

A travel restraint system prevents the worker from ever reaching the point where a fall could happen. The worker is tethered so they can get close to the edge but not go over it.

A travel restraint system includes:

• Full body harness or body belt: Body belts (CSA Z259.1-05) are permitted for travel restraint, unlike fall arrest.
• Fixed-length or adjustable lanyard: Measured so the worker cannot reach the unprotected edge when fully extended.
• Anchor point: Alberta OHS Code requires a minimum of 3.5 kN per worker for a temporary travel restraint anchor (s.152.1(1)). That is a fraction of the 16 kN required for fall arrest anchors.

Because the worker never actually falls, there is no need for a shock absorber, no need for a rescue plan, and no risk of suspension trauma. The system is simpler, cheaper, and safer. That is exactly why it sits higher than fall arrest in the hierarchy. Note: when fall arrest is used, Alberta OHS Code s.151(4) requires the lanyard to be secured to an anchor no lower than the worker's shoulder height where reasonably practicable.

The critical rule from CCOHS: if a travel restraint system does not prevent the worker from reaching the fall hazard, a fall arrest system must be used instead. There is no grey area. Need help building a site-specific fall protection program? Safety Evolution can help.

Fall Protection vs Fall Arrest vs Fall Restraint: Key Differences

This is where the confusion usually lives. Here is a direct comparison:

The single biggest takeaway: fall arrest is not the go-to option. It is what you use when guardrails and restraint are not reasonably practicable. If you can keep a worker from reaching the edge, you should.

The Fall Protection Hierarchy: Where Fall Arrest Fits

Fall arrest sits near the bottom of the fall protection hierarchy. Alberta OHS Code s.139 requires employers to consider guardrails and travel restraint before turning to fall arrest. You must demonstrate the higher-level controls are not reasonably practicable before defaulting to harnesses. For the full hierarchy breakdown and how to apply it, see our dedicated hierarchy guide.

Looking for fall protection training that covers all of this? Make sure your provider covers the full hierarchy, not just harness inspection.

Common Mistakes on Canadian Job Sites

After working with hundreds of contractors on their safety programs, these are the mistakes we see repeatedly:

1. Calling everything "fall arrest" in the fall protection plan. Your fall protection plan (required under AB OHS Code s.140 when workers may fall 3 metres or more) must specify the actual system being used. Writing "fall arrest" when the crew is actually in travel restraint, or vice versa, creates a documentation mismatch that auditors and inspectors will catch. Use the correct terminology for the correct system.

2. Defaulting to fall arrest when restraint would work. Fall arrest means higher anchor requirements (16 kN vs 3.5 kN per Alberta OHS Code), mandatory rescue plans, shock absorbers, and suspension trauma risk. If the work area allows you to tether workers short of the edge, restraint is simpler, safer, and preferred by regulation. Many roofing and formwork tasks can use restraint if the anchor placement is planned properly.

3. Using body belts for fall arrest. Alberta OHS Code s.142.1(b) is explicit: a body belt may only be used as part of a travel restraint system or fall restrict system. Full body harnesses (CSA Z259.10-18) are mandatory for fall arrest. We still see body belts on sites where workers are clearly in fall arrest configurations. That is a compliance violation.

4. Skipping the rescue plan. If someone falls and the fall arrest system catches them, they are now hanging in a harness. Suspension trauma can cause unconsciousness in minutes and death in under 30 minutes. Alberta OHS Code s.140(2)(f) requires rescue procedures for anyone in a personal fall arrest system. "We'll figure it out" is not a plan.

5. Not verifying fall clearance distance. A 1.8 m (6-foot) lanyard with a deployed shock absorber (up to 1.07 m), plus harness stretch, plus the worker's height below the D-ring, can easily exceed 5.5 metres of total clearance needed. Alberta OHS Code s.151(1) requires that a personal fall arrest system be arranged so the worker cannot hit the ground or a lower level. If your work surface is only 4 metres above the next level, the math does not work. The worker hits the lower surface before the system fully arrests the fall. Always calculate clearance before selecting your system.

Not sure whether your fall protection plan matches what is actually happening on your sites? That gap between the paperwork and the field is where injuries happen. Use our free toolbox talk package to train your crew on the differences, or book a free 30-minute safety assessment to identify mismatches before an inspector does.