Under what circumstance is a tagline required?

A tagline is a rope or line attached to a load or rigging that helps control its movement and orientation. It is particularly important when the load has the potential to rotate or swing, posing a hazard to workers or nearby equipment. This need for a tagline arises because rotating loads can be unpredictable and hazardous, potentially leading to accidents or injuries if not properly controlled.

When a load rotates, it can present risks not just to those directly involved in the lift but also to others in the vicinity. The tagline allows operators to guide and stabilize the load during lifting, lowering, or moving operations. This control is crucial in maintaining safety on the job site, especially in environments where there might be other personnel or obstacles.

Thus, using a tagline when the rotation of the load is hazardous is an essential safety measure, ensuring that the load can be managed effectively and reducing the risk of accidents. This understanding is fundamental in rigger training and emphasizes the importance of load control in crane operations. The other options do not reflect scenarios that necessitate the use of a tagline effectively, as they do not account for the specific risks associated with load movement and handling.