Which instruction governs the tag-out program?

• A. Tag-out Users Manual (TUM)
• B. Lockout/Tagout Standard (LOS)
• C. Electrical Safety Guidelines (ESG)
• D. Maintenance Control Manual (MCM)

Answer: (A)

A tag-out program is guided by a document that specifically sets how tagging is carried out, who is authorized to apply and remove tags, what information each tag must contain, and the steps to verify de-energization before work starts. This dedicated Tag-out Users Manual provides the exact procedures, responsibilities, and workflow needed to consistently implement tag-out across the crew, ensuring that energy sources are clearly identified and isolation is maintained during maintenance.

The other names don’t fit as the governing instruction for tagging. A generic lockout standard might address overall energy isolation but doesn’t focus on the tagging details, and the other titles—Electrical Safety Guidelines or Maintenance Control Manual—don’t provide the specific tag-out procedures and responsibilities required to govern the tagging process.