When materials are being hoisted to an upper level, a tag line is used to:

Using a tag line during the hoisting of materials is essential for controlling the load. A tag line is a rope or cable attached to a load being lifted that allows workers on the ground to guide and stabilize the load as it is being moved. This is particularly important in preventing the load from swinging or spinning, which can happen due to wind or uneven lifting.

By pulling on the tag line, personnel can keep the load oriented correctly and ensure it avoids obstacles. This control is crucial for safety, as it minimizes the risk of accidents or injuries that could arise from an uncontrolled load. The tag line serves as a means to enhance communication among team members and maintain precise movement of the load during the hoisting process.

In contrast, using a tag line does not aid in raising the load directly, nor is it used to stop the hoisting process or prevent falling materials, as these functions are not its primary purpose.