What is lockout/tagout (LOTO) and how does it apply to rigging operations?

• A. A method to log the color of each rope used in a lift.
• B. A process to tag workers with IDs for access control during lifts.
• C. A safety procedure to isolate energy sources; tag or lock equipment to prevent re-energizing while a load is suspended or equipment is being serviced.
• D. A system to record the time of day for each lift.

Answer: (C)

Lockout/tagout is a safety procedure that isolates all energy sources so a machine or system cannot be energized or release stored energy while work is being done. In rigging operations, this means applying a lock or a warning tag to cranes, hoists, hydraulic lines, electrical controls, and other energy‑controlling equipment to prevent accidental energizing while a load is suspended or the equipment is being serviced, adjusted, or repaired. The lock physically blocks the energy source, while the tag warns that maintenance is in progress; only the person who applied the lock or tag should remove it, ensuring work cannot resume without proper authorization. This protects rigging personnel from unexpected movements, releases, or control actions that could cause a load to drop or equipment to move unexpectedly. The other options don’t fit because they describe logging rope colors, tagging workers for access control, or recording times, none of which prevent unexpected energization or protect workers during rigging.