Rope descent systems (RDS) allow workers to safely descend from heights using ropes and mechanical brakes. These systems are used on facades, exterior maintenance, and window cleaning operations. All rope must be natural fiber, synthetic fiber, or wire rope meeting ANSI standards for rope strength. The rope diameter must be compatible with the mechanical brake devices used. Synthetic ropes are most common due to cost and durability. Rope must be inspected before each use and any damage including fraying, cuts, or embedded particles must result in removal from service. Mechanical brakes must provide sufficient braking force to limit descent speed and control the load. Competent persons must design and manage RDS operations. The system must include anchor points rated for a minimum of 5,000 pounds per worker. Primary anchors must be backup anchors; if the primary fails, the backup prevents falling. All personnel must wear harnesses with chest and leg straps providing proper load distribution. Harnesses must be connected to the RDS with a specific connection method appropriate to the system design. Improper connections can fail under load. Regular training and practice ensure workers are proficient in system use. Rescue procedures must be in place in case a worker becomes incapacitated during descent. The rescue equipment and procedures must be tested regularly. Descent operations are specialized and require professional planning and supervision.