QA / QC

Non-Conformance Report (NCR)

Report for work not meeting specification

Also calledncrnon conformancenon-conformance reportdeviationncr report
Definition

A Non-Conformance Report (NCR) is a formal document raised when construction work fails to meet the project specification. Used as part of a quality management system to document defects, identify root causes, define corrective and preventive actions, and provide an audit trail. Per ISO 9001 (Quality Management Systems) and IS 14687, NCRs are mandatory in formal QA/QC programs and increasingly common in major Indian commercial and infrastructure projects.

An NCR typically includes: (1) Identification — date, location, NCR number, person raising; (2) Description of non-conformance — what was found and where; (3) Reference standard — the IS code, project specification, or drawing being deviated from; (4) Severity classification — minor, major, or critical; (5) Root cause analysis — why the defect occurred (worker skill, supervision, materials, process, equipment); (6) Corrective action — what is done to fix the immediate defect (re-pour, repair, replace); (7) Preventive action — what is done to prevent recurrence (training, process change, inspection); (8) Verification — confirmation that corrective and preventive actions are effective; (9) Sign-off — by site engineer, contractor, structural engineer (and often third-party inspector).

Indian construction NCR practice varies by project type: (a) Government and PSU projects — NCR is mandatory and tracked rigorously. (b) Major commercial and infrastructure projects — NCR is standard, raised by structural engineer, third-party inspector, or QC team. (c) Private residential — NCR is rarely formal; defects are addressed informally. The most-overlooked aspect of NCR practice is the preventive action section — many NCRs report only on the corrective action (fix this defect) without addressing why it happened or how to prevent recurrence. A high NCR count is not necessarily a sign of poor work; it can indicate good QA/QC catching defects. A low NCR count may indicate poor inspection rather than good quality.

Where used
  • Government and PSU projects — formal QA/QC mandated
  • Major commercial high-rise projects — third-party inspection
  • Industrial plant construction — safety-critical applications
  • Pre-stressed concrete and bridge construction
  • ISO 9001 certified contractors — internal NCR tracking
Acceptance / threshold
Per ISO 9001 + IS 14687 + project Quality Plan: documented defect, root-cause analysis, corrective and preventive actions, verification, sign-off. Tracked centrally with statistics by activity, contractor, and time period.
Site example
Site reality: a Pune airport-terminal project had 28 NCRs raised over 8 months. Top categories: rebar count discrepancy (8 NCRs — solved by daily pre-pour audit), inadequate cover (6 — solved by spec'ing minimum 600 mm cover-block spacing), concrete strength (3 — root cause: unauthorised water addition, solved by RMC contractual penalties), weld defects (5 — root cause: untrained welders, solved by re-qualification per IS 7307). NCR analytics drives systematic quality improvement; NCRs are not just paperwork.
Frequently asked
What is an NCR in construction?
A Non-Conformance Report (NCR) is a formal document raised when construction work fails to meet specifications. Documents: defect description, reference standard violated, root cause, corrective action, preventive action, and verification. Mandatory in formal QA/QC programs (ISO 9001, IS 14687), increasingly common in major Indian commercial and infrastructure projects.
Who raises an NCR?
Typically: site engineer (most common), structural engineer (during inspection), third-party inspector, QC engineer, or contractor's own QA team. The person raising must have authority to enforce corrective action. NCRs flow up to the structural engineer and project manager for approval of corrective and preventive actions.
What's the difference between NCR and rework?
An NCR documents a non-conformance — the deviation, root cause, and the actions to address it. Rework is the actual physical correction of the defect (re-pour, repair, replace). One NCR can result in multiple rework activities; one rework instance is documented under one NCR. The NCR is the audit trail; the rework is the physical work.
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