For larger mines, how often must all active working places be visited?

• A. Daily
• B. Once per shift
• C. Weekly
• D. Monthly

Answer: (B)

In larger mines, safety oversight needs to be continuous across many active areas. The rule is that supervisors must visit every active working place at least once during each shift. This frequent, per-shift check ensures hazards can be spotted and addressed while conditions are still current for that shift, before the next crew takes over. With many working places, conditions can change quickly as ventilation, lighting, equipment, and personnel move through the mine, so a per-shift audit provides timely safety assurance.

If visits were only daily, weekly, or monthly, issues could go unchecked for too long, increasing the risk of incidents. Per-shift visits strike a practical balance by aligning with the work cycle and providing ongoing oversight, enforcement, and documentation of hazardous conditions or unsafe practices.