Which of the following is a required step in the lockout/tagout process?

Which of the following is a required step in the lockout/tagout process?

• A. Conducting a toolbox talk
• B. Replacing equipment
• C. Documenting lunch breaks
• D. Verifying energy isolation

Answer: (D)

Verifying energy isolation is the essential step because it confirms all energy sources are disconnected and the equipment cannot be restarted while maintenance is performed. After lockout devices and tags are applied, you must test and confirm a zero-energy state—no electrical, hydraulic, pneumatic, or other energy can move the equipment. This verification prevents unexpected energization from hidden or stored energies, protecting workers from injury during service. Other items like a toolbox talk, replacing equipment, or logging lunch breaks may be good safety practices in different contexts, but they are not required steps of the lockout/tagout process. The required step is the formal check that the energy has been isolated and cannot re-energize the system.

Verifying energy isolation is the essential step because it confirms all energy sources are disconnected and the equipment cannot be restarted while maintenance is performed. After lockout devices and tags are applied, you must test and confirm a zero-energy state—no electrical, hydraulic, pneumatic, or other energy can move the equipment. This verification prevents unexpected energization from hidden or stored energies, protecting workers from injury during service. Other items like a toolbox talk, replacing equipment, or logging lunch breaks may be good safety practices in different contexts, but they are not required steps of the lockout/tagout process. The required step is the formal check that the energy has been isolated and cannot re-energize the system.