List three core requirements of a Lockout/Tagout program as applied to electrical work.

• A. Isolation of all energy sources with appropriate locking devices; durable tags to communicate hazard and that the equipment is locked out; verification of de-energization and training plus periodic inspections.
• B. Visual inspection of equipment; verbal confirmation without training.
• C. Use of portable barriers only; no locking.
• D. Grounding of all circuits only.

Answer: (A)

Lockout/Tagout in electrical work is about preventing any unexpected energization while maintenance or servicing is done. The best choice brings together three essential elements: isolating all energy sources with appropriate locking devices so the equipment cannot be energized, using durable tags to clearly communicate that the equipment is locked out and what hazards exist, and verifying that the system is de-energized while also providing training and performing periodic inspections to keep the program effective. This combination ensures physical prevention of re-energization (locks), clear warning and status communication (tags), and verified de-energization plus ongoing competency and compliance (training and inspections). The other options fall short because they lack one or more of these safeguards: relying on visual checks or verbal confirmation without proper training doesn’t guarantee isolation; barriers without locks don’t physically prevent energization; and grounding alone doesn’t isolate or prevent a circuit from being re-energized.