Which of the following must be posted whenever a regulated work area is set up?

When a regulated work area is established for activities involving asbestos, it is crucial to post warning signs to inform workers, visitors, and others in the vicinity of the potential hazards associated with asbestos exposure. These warning signs serve as a crucial safety measure that communicates the dangers present in the area, such as the presence of asbestos-containing materials and the need for appropriate personal protective equipment (PPE).

The signs typically include standardized symbols and language that clearly convey the risks and the requirement for safety precautions. By ensuring that all individuals entering or near the regulated work area are aware of the risks through these signs, it helps to prevent accidental exposure and promotes a culture of safety within the workplace.

While removal notices, environmental assessment results, and incident reports may be important documents related to asbestos management and safety, they do not fulfill the specific requirement for immediate, visual communication regarding hazards in a regulated work area. Therefore, posting warning signs is a fundamental aspect of ensuring safety and compliance in such environments.