At which point on the lifeline should a lanyard be attached for safety?

Attaching a lanyard above the shoulder is critical for safety because it maximizes fall protection and minimizes the risk of injury during a fall. When a lanyard is secured at this height, it ensures that the individual is more effectively restrained from falling, as the harness distributes the force of a fall across the body and allows for a quicker and easier recovery once the fall has been arrested.

If the lanyard were attached at waist level, knee level, or head level, it could increase the risk of serious injury in the event of a fall. For instance, a waist-level attachment could lead to a potentially dangerous free fall and might not allow for proper energy absorption, while a knee-level or head-level attachment could also result in improper fall dynamics, compromising safety. Therefore, positioning the lanyard above the shoulder is the standard practice followed to ensure the best safety outcomes in various working environments.