Reference

ANSI/ASSP Z359.14-2021 replaced the Class A and Class B self-retracting lifeline labels with Class 1 and Class 2 on August 1, 2023, and changed what the class measures: anchorage position, not stopping distance. Covers both classes side by side, why Class A does not convert to Class 1, and how edge rating differs from class.

Tie off without enough room below you and the system stops you only after you have already hit the ground. This guide shows how to calculate fall clearance step by step - free fall, deceleration, worker height, D-ring shift, and safety factor - with worked numbers for a shock-absorbing lanyard versus an SRL under OSHA 1926.502.

A shock-absorbing lanyard and a self-retracting lifeline both connect your harness to an anchor, but they behave differently in a fall, and choosing wrong can mean too little clearance to stop. This guide compares the two on free-fall distance, clearance, arrest force, and cost, and shows which connector fits each tie-off.

A personal fall arrest system is only as strong as its weakest link, and the ABCDs framework is how to make sure no link is missing. This guide explains the ABCDs of fall protection, Anchorage, Body wear, Connectors, and Descent or rescue, covers the OSHA trigger heights, and shows how to calculate the fall clearance you actually need.