Lifeline: In fall protection, a lifeline is a component consisting of a flexible line connected vertically to an anchorage at one end like in the case of a fabricated frame scaffold (vertical lifeline), or connected horizontally to anchorages at both ends (horizontal lifeline), and which serves as a means for connecting other components of a personal fall arrest system to the anchorage. According to OSHA, a lifeline “a minimum of 3/4-inch manila or equivalent, with a minimum breaking strength of 5,400 pounds.”

Lifelines are a key component in fall protection.