Under what circumstances is a permit to work required?

• A. For routine administrative tasks only.
• B. Only when a manager approves.
• C. For high-risk activities requiring explicit safety controls before work begins.
• D. Only during night shifts.

Answer: (C)

A permit to work is required when a task carries significant risk and safety controls must be put in place before starting. In mining, the PTW process captures the hazard, the specific controls needed, who is involved, and authorizes the work so everyone knows the exact actions and precautions before any operation begins. This ensures critical steps like isolating energy sources, conducting gas tests, installing barriers, and providing the proper supervision and PPE are done upfront. It’s about proactive safety planning for high‑risk activities, not about routine tasks, a manager’s approval alone, or the time of day. So the best description is that a permit to work is needed for high‑risk activities that require explicit safety controls before work begins.