Internal pipe inspection and obstruction (Chapter 14)
A reading of NFPA 25 14 as it is commonly cited on an inspection report. The reading explains the section; it does not certify a building or close a citation. The inspector's finding and the code text govern.
MatchExact section: the decoder holds a reading for NFPA 25 14.
Evidence reviewReading prepared from the published text, NFPA 25 2023 edition; readings dated Oct 14, 2026; line-by-line source check pending. Text: NFPA free access (nfpa.org).
AdoptionWhether this standard is in force depends on the state or city that adopts it, and on the edition adopted. The decoder reads it against any of the 51 state records.
What it coversEvery five years an internal inspection of piping at the flushing connection and a branch line, with an obstruction investigation if material is found.
What usually closes itHave a contractor perform the internal inspection; flush or replace obstructed sections.
Who can do the workLicensed fire sprinkler contractor (licensing differs by state)
Proof at re-inspectionFive-year internal inspection report with photos.
Questions to ask next: which edition and section the finding is written against, in writing; what exactly was observed and what the inspector expects at re-inspection; the correction deadline on the notice. Disagree with the reading of the code? Ask the inspector for the section and edition in writing, then the fire or building official for a written interpretation.
Also in NFPA 25
4.1 · Owner responsibility and records5.1 · Sprinkler inspections not done or not documented5.3 · Sprinkler tests overdue5.4 · Sprinkler maintenance deficiency6 · Standpipe deficiency7 · Private fire service mains and hydrants8 · Fire pump testing13 · Valves, alarm devices and fire department connections15 · Impairments
4.1 · Owner responsibility and records5.1 · Sprinkler inspections not done or not documented5.3 · Sprinkler tests overdue5.4 · Sprinkler maintenance deficiency6 · Standpipe deficiency7 · Private fire service mains and hydrants8 · Fire pump testing13 · Valves, alarm devices and fire department connections15 · Impairments