Which safety measure is mandated when backing up an apparatus during training?

The requirement for both emergency lights to be turned on and the presence of a backup person serves as a critical safety measure during the backing up of apparatus in a training scenario. Activating the emergency lights not only enhances visibility for the driver but also alerts other personnel and nearby individuals of the apparatus's movement and operations. This is particularly important in a training environment where awareness of actions and safety surroundings is crucial for all participants involved.

In addition, having a backup person is essential for ensuring that the driver is aware of their surroundings from angles that may not be visible through mirrors alone. The backup person can communicate directly with the driver, providing real-time information about obstacles, personnel, and the overall safety of the area behind the apparatus. This two-pronged approach significantly reduces the risk of accidents and potential injuries during training exercises, in accordance with safety protocols outlined for fire rescue operations.

Thus, combining both measures represents a comprehensive strategy to ensure safe backing procedures, which should be emphasized in training for all driver engineers.