Quality concepts
Nonconformance
Also called: non-conformance, NCR
A nonconformance is work that fails to meet a stated requirement: the drawing, the specification, the approved submittal or the acceptance criteria. It is more than a note to fix later — once identified it gets logged, usually on a nonconformance report, and carried through to a disposition: use-as-is, repair, rework or reject. Naming it a nonconformance is what forces a decision on the record instead of a quiet field patch.
Why it matters
Unlogged nonconformances are how a job accumulates hidden risk — the substitution nobody approved, the slab that came in low, the assembly that no longer matches the fire-rated detail. Tracking them means someone with authority decides what happens and why, and the decision is documented.
It also protects the builder. A closed nonconformance with photos and a signed disposition is the difference between a defensible record and a warranty argument two years later.
How it shows up on site
A failed checklist item or a rejected inspection becomes an NCR entry. The item is photographed, described against the requirement it missed, assigned a disposition, and not closed until the corrective work is verified.
Standards it's verified against
Checklists that put nonconformance to work
Free, field-ready checklists, each with the photo every item needs before it can be submitted.
Related terms
- Nonconformance report (NCR)A formal record raised when installed work does not meet the drawings, specs or an accepted standard, and the plan to resolve it.
- Corrective actionThe step taken to fix a nonconformance and stop it happening again — both the repair and the change that prevents a repeat.
- DeficiencyWork that is incomplete, missing or not up to standard — the catch-all a punch list and inspections use for anything that still needs attention.
- DefectA flaw in materials or workmanship that makes the work fall short of what was specified or of accepted trade practice.
- Root cause analysisWorking back from a defect to the real reason it happened, so the fix stops it recurring instead of just cleaning it up once.
- Quality assurance (QA)The planned system of procedures, plans and checkpoints set up before work starts so the right result is built the first time.
Knowing the term is step one. Proving it is the job.
RTI holds the submit button until every mandatory item is answered and the photos are attached, then chains the record so it can be proven untouched later.