Which reference delineates proper tag-out procedures?

The correct reference for proper tag-out procedures is the Tag-Out User Guide. This guide provides specific instructions and details regarding the implementation of tag-out procedures, which are critical for ensuring the safety of personnel and the proper operation of equipment during maintenance and repairs. The tag-out process is integral to preventing accidental operation of machinery and systems to avert potential hazards.

While OPNAVINST 3120.32B, the Naval Operations Manual, and the Engineering Standards Manual contain valuable information regarding various operational procedures and standards, they do not focus specifically on tag-out procedures. Rather, the Tag-Out User Guide serves as a dedicated resource that outlines the steps, standards, and best practices necessary for effectively utilizing and managing tags in a naval shipyard or engineering context.