Who is the only occupant allowed to have any part of their body outside the personnel platform?

In this context, the only occupant permitted to have any part of their body outside the personnel platform is the signalman. This is because the signalman is positioned at a location where visibility and communication with the operator are critical for the safe operation of the equipment. The signalman’s role is to provide clear and effective signals to coordinate the movement of loads and ensure safety on site. This often requires a certain level of physical positioning outside the platform to maintain visibility.

It is important to note that all other occupants, such as the operator, supervisor, and crew members, must remain within the confines of the personnel platform at all times to avoid the risk of injury. This restriction is in place to maximize safety and minimize hazards associated with falling objects or accidents during operations. The signalman's unique position is supported by training and regulations that emphasize their role in maintaining communication and safety when working at heights or near moving equipment.