What is a key criterion for ensuring 100% tie-off in fall protection?

A key criterion for ensuring 100% tie-off in fall protection is the need to always be connected to a fall arrest anchor. This principle is crucial because it guarantees that a worker is secured at all times while working at heights, significantly reducing the risk of falling. By being connected to a reliable anchor point, a technician can perform tasks without jeopardizing their safety, as there is a continuous line of protection against potential falls.

While using a double lanyard is a good practice that helps to maintain safety during transitions between anchors, it does not inherently guarantee 100% tie-off. Having a minimum of two anchors provides an added layer of security, but without the continuous connection to a fall arrest anchor, the risk remains. Annual testing of anchors is important to ensure they are functioning correctly and safely, yet it does not address the immediate need for continuous connection during work activities. Thus, the practice of always being connected to a designated fall arrest anchor is fundamental to achieving 100% tie-off in fall protection strategies.