In terms of safety systems, what is necessary for the proper use of personal protective equipment?

The correct choice emphasizes the critical importance of training and enforcement in the proper use of personal protective equipment (PPE). Training ensures that individuals understand how to correctly use the equipment, including how to wear it, when to use it, and the limitations of the PPE. This knowledge is vital in ensuring that PPE effectively protects workers from hazards present in their environment.

Enforcement is equally important in maintaining safety standards. Without proper enforcement, there may be lapses in consistent PPE use, leading to increased risk of injury or exposure to hazardous conditions. By enforcing safety protocols, organizations help to create an environment where safety practices are taken seriously and adhered to by all personnel.

While availability and cost, size and color, as well as material and design are relevant factors in the selection and procurement of PPE, they do not directly address the necessary components for effective usage in a safety context. Proper training ensures that the equipment is used correctly, and enforcement helps maintain a culture of safety in the workplace.