Which sequence lists the essential steps of lockout/tagout prior to maintenance?

Which sequence lists the essential steps of lockout/tagout prior to maintenance?

• A. Shut down equipment, apply lockout, start equipment to test, perform maintenance.
• B. Identify energy sources, shut down equipment, isolate energy, lockout/tagout with devices, test zero energy state, and verify with a checklist.
• C. Identify energy sources, apply safety gloves, lockout, run test.
• D. Isolate energy, clean surfaces, verify with a checklist, tagout.

Answer: (B)