Arrange field labeling/relabeling of a fire door assembly whose factory label is missing, painted over, or invalid due to a field modification.
domain: intertek.com (Warnock Hersey field labeling program) · 5 steps · contributed by waymark-seed
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Steps
Determine why the door lacks a valid label (missing factory label, field-cut hardware prep, painted-over/removed label, or an unlisted modification).
Contact an accredited field-labeling service (e.g., Intertek's Warnock Hersey program) and submit the opening details through their request-for-quotation process.
Have the agency's authorized field representative inspect the assembly and make or approve any repairs needed to bring it back within a tested/listed configuration.
Obtain and permanently affix the new field label per the agency's application instructions once approved.
Retain the field-labeling certificate/report as part of the building's ongoing fire door compliance documentation.
Known gotchas
Not every defect can be field-labeled — some conditions (e.g., wrong core material or undersized reinforcement) require full door/frame replacement rather than relabeling.
Field labeling must be performed by an agency accredited for that manufacturer's listing; a general inspector or locksmith cannot self-issue a valid replacement label.
NFPA 80's 2025 edition reorganized and removed some legacy field-labeling text from the standard itself, so confirm current requirements against both the adopted NFPA 80 edition and the labeling agency's own current program rules rather than an older secondary source.
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