Where should the only entrance/exit for a worker in a regulated area be located?

The correct answer emphasizes the importance of safety and health protocols in areas where asbestos is handled. A decontamination facility serves a critical purpose by providing a controlled environment for workers to clean themselves and their equipment after being exposed to hazardous materials. This helps minimize the risk of contaminating other areas, ensuring that potential asbestos fibers do not spread beyond the regulated zone.

Placing the entrance and exit solely at the decontamination facility reinforces the effectiveness of health and safety measures, allowing workers to follow strict protocols that protect both themselves and the surrounding environment. Other choices, such as a standard office door or any clear space outside, do not provide the necessary safeguards or structured process to manage contamination effectively. Moreover, allowing exit through a designated break area can also compromise safety, as these areas may not be equipped to handle potential asbestos exposure. Thus, the decontamination facility is the only appropriate choice for managing exits in regulated asbestos areas.