How should visitors be managed in explosive facilities?

• A. They may visit unsupervised during daylight hours with minimal PPE.
• B. They must be escorted, briefed on hazards, follow safety rules, and wear required PPE.
• C. They must be escorted but do not need a PPE requirement.
• D. They may visit unsupervised if they sign a log.

Answer: (B)

Visitors in explosive facilities must be escorted, briefed on hazards, follow safety rules, and wear the required PPE. This approach provides proper supervision and accountability, ensuring a trained person is with the visitor to enforce procedures and respond to issues. The hazard briefing informs them of site-specific risks such as ignition sources, blast effects, and fragmentation, and it outlines emergency actions. Following established safety rules ensures behavior stays within proven safe practices, while wearing the required PPE protects against the specific hazards present in the area. When any of these elements is missing, the risk increases significantly—from lack of supervision to inadequate protection or unfamiliarity with hazards.