An Inspection and Test Plan is the backbone of quality control on any project.
Without a properly structured ITP — inspections are inconsistent, hold points are missed and clients reject your work at handover.
Here is the correct ITP format used on projects worldwide:
Column 1 — Activity The specific work activity being inspected. Example: “Cable installation — fire rated cable FR-LSOH 2.5mm²”
Column 2 — Reference Document The standard, specification or drawing that defines the acceptance criteria. Example: “IEC 60332-3, Project Specification PS-E-001 Rev C”
Column 3 — Acceptance Criteria The exact measurement, standard or condition that defines pass or fail. Example: “Cable size 2.5mm² FR-LSOH. Maximum tray fill 40%.”
Column 4 — Inspection Type How the inspection will be done.
- Visual Inspection
- Dimensional Check
- Functional Test
- Document Review
Column 5 — Responsibility Who performs the inspection — Contractor, QC Inspector, Client, Third Party.
Column 6 — Hold Point or Witness Point H — Hold Point: Work cannot proceed until inspection is signed off. W — Witness Point: Client or engineer is invited to witness but work can continue if they do not attend. R — Review Point: Document review only — no physical inspection required.
Column 7 — Sign Off Space for inspector signature, date and result — Pass or Fail.
The difference between a Hold Point and a Witness Point is critical.
A Hold Point means STOP. No one moves forward until the inspector signs.
Missing a Hold Point is a serious non-conformance. It can result in rework, rejection and contractual penalties.
Always read your ITP before starting work — not after.
Which ITP Hold Point do contractors most commonly miss on your projects?
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