Labeled is defined as which of the following?

• A. Equipment manufactured to code standards.
• B. Equipment tested by the AHJ.
• C. Equipment marked by an acceptable evaluation organization.
• D. Equipment approved by the property owner.

Answer: (C)

Labeled means the equipment has been independently tested and evaluated by a recognized labeling organization and carries a mark showing it meets a specific standard. That label is the official signal to the AHJ that the product is suitable for use in the sprinkler system under NFPA 13R and should be installed per the standard it was tested to. Simply being manufactured to a code or standard isn’t enough without third‑party verification and a label. The AHJ relies on that labeling, not on the owner’s approval or on the organization performing the testing being the AHJ itself. So the equipment marked by an acceptable evaluation organization best captures what “labeled” signifies.