The restricted boundary allows access only to which type of personnel?

The restricted boundary is designed to enhance safety in environments where specific hazards may be present. Access to such areas is limited to only those personnel who are qualified and wearing appropriate personal protective equipment (PPE). This ensures that individuals who enter the restricted zones are adequately trained to recognize and handle the associated dangers, and that they are protected against potential hazards by their PPE.

Qualified personnel understand the risks involved in the tasks they perform and have typically undergone specialized training that prepares them to work safely in these conditions. The requirement for PPE is an essential component because it provides a physical barrier against hazards such as electrical shock, chemical exposure, or physical injuries that may occur in the area.

In contrast, other options suggest broader access criteria that could compromise safety. Training alone without PPE, supervision without qualifications, or basic safety knowledge does not provide the assurance needed to navigate hazardous environments safely.