Who is authorized to be involved in firing and preparation of the shots?

The correct choice indicates that only a certified shot firer or firers are authorized to be involved in the firing and preparation of shots. This requirement is essential for maintaining safety and compliance with mining regulations. Certification ensures that the individuals responsible for handling explosives have received the necessary training and have demonstrated competence in managing the inherent risks associated with explosive materials.

The role of a certified shot firer includes understanding the proper loading techniques, the use of explosives, safety protocols, and emergency procedures. This specialization is crucial because improper handling or firing of shots can lead to severe accidents, including unintended explosions, which can endanger the lives of workers and disrupt mining operations.

While other positions, such as supervisors or mine owners, may be involved in overseeing operations, they do not possess the specific training necessary to safely handle explosive charges unless they are also certified shot firers. Mine workers without such certification lack the expertise required for this critical aspect of mining safety.