Question 1

A crew member is assigned to inspect a fitting 1.5 metres from an open hatch edge. A fall restraint lanyard is selected, sized so the worker cannot physically reach within 0.5 metres of the edge. Does this setup require a rescue plan in the way a fall-arrest task would?

Accepted Answer

No additional fall-arrest-style rescue plan is needed for the restraint function itself, since the worker cannot reach the fall hazard at all — though general task supervision still applies Correctly sized restraint removes the possibility of a fall in the first place, which is exactly why it's preferred over arrest when a task allows it — no fall, no suspended casualty, no fall-specific rescue requirement.

Question 2

What is the fundamental difference between 'fall restraint' and 'fall arrest'?

Accepted Answer

Fall restraint physically prevents the worker from reaching a fall hazard at all; fall arrest allows the worker to fall but stops/arrests that fall before they hit a lower level Restraint is higher in the hierarchy of controls because it removes the possibility of a fall occurring at all — the worker simply cannot get close enough to the edge. Fall arrest accepts a fall may happen and focuses on limiting its consequences, which is why fall arrest (and only fall arrest) requires a rescue plan.

Question 3

Why does a fall restraint system NOT require a rescue plan in the way a fall arrest system does?

Accepted Answer

Because if correctly set up, restraint prevents the worker reaching the fall hazard in the first place, so there is no fall event and no suspended casualty to rescue This is precisely why restraint is preferred wherever the task allows it — it eliminates the suspension trauma/rescue problem altogether rather than managing it after the fact, which is a significant operational and safety advantage on a vessel with limited onboard rescue resources.