Which of the following is not considered an engineering control?

The correct choice is safe medical devices because they are typically classified as part of administrative controls or work practice controls rather than engineering controls. Engineering controls are physical modifications to the workplace or equipment that aim to reduce or eliminate hazards. This includes systems that alter the hazard itself or how it is contained, such as ventilation systems that remove airborne contaminants, safety shields that protect workers from exposure, and biohazard waste disposal systems that ensure hazardous materials are safely handled and removed.

Safe medical devices may enhance safety, but they primarily focus on procedural safeguards, training, and compliance with standard practices, which fall under administrative controls rather than direct physical changes within the workplace. This reflects a vital distinction in safety protocol structures, promoting an understanding of how various control measures function to protect individuals in high-risk environments.