What must be satisfied by any ventilation control device mentioned in schedule 4, column 1?

• A. It must be installed in every major panel.
• B. It must be inspected monthly.
• C. It must meet the design criteria stated in schedule 4, column 2.
• D. It must be capable of manual override at all times.

Answer: (C)

The key idea is that the regulation pairs each ventilation control device listed in schedule 4, column 1 with a specific design standard in schedule 4, column 2. Any such device must meet the design criteria described in column 2. This ensures every device performs to the same safety and reliability requirements under mine conditions. The other options aren’t the universal rule for these devices: installation in every major panel, monthly inspections, or always having a manual override are not the blanket design criteria established for all devices in that schedule. The design criteria in column 2 is the benchmark each device must satisfy.