Glossary

Non-conformance (NCR)

A non-conformance is a departure from a stated requirement: a specification clause, a drawing note, a work instruction, a standard. A non-conformance report (NCR) records it, contains it, gives it a disposition and a corrective action, and verifies both before it closes.

CONSTRUCTION DEFECT GLOSSARY·UPDATED OCTOBER 2026
Where the word is used

Used the same way worldwide, because it comes from quality management systems (ISO 9001) rather than from a building culture. Common on infrastructure, manufacturing and any job with an inspection and test plan.

On site

An NCR is raised when a hold point fails or an inspection finds work outside tolerance. Someone decides the disposition: use as is, rework, repair, or reject. A use-as-is or repair needs a named approver, usually the engineer or the customer. The root cause and corrective action are what stop it recurring.

On the record

How IssuesId holds it

IssuesId tracks a non-conformance as a record on the main register with a Type and a Classification marking it out, raised from the failed check and linked to the rework, so the NCR and the fix cannot disagree about whether it is closed. The formal management-review NCR with its own approvals is the slower register in the quality plan.

Asked alongside

Two questions people ask

What is a non-conformance report?
A record that something was found not to meet a stated requirement. It names the requirement and what was found, contains the problem, records the disposition (use as is, rework, repair, reject) and who approved it, finds the root cause, sets a corrective action and verifies both before it closes.
What are the dispositions on an NCR?
Use as is (accept the deviation, with a named approver), rework (bring it to specification), repair (make it fit for purpose by a method other than the original, also approved), and reject or return. Which one applies is the single decision on the NCR that matters most later, so it needs a name and a date against it.
Related terms

Definitions describe common usage and the usual shape of standard-form contracts. Your contract and your jurisdiction’s building law set the terms that apply to your job. The whole list is at the glossary.

IssuesId