Inspection process
Witness point
Also called: W-point
A witness point is a step in the inspection and test plan where a party — the owner's rep, engineer, or a specialty inspector — is given the chance to watch the work being done or a test being run. It differs from a hold point in one way that matters: if the party doesn't show up within the notice period the plan sets, the crew is allowed to carry on. The invitation is mandatory; the attendance is not.
Why it matters
Witness points let a project keep moving without a busy inspector becoming a bottleneck, while still giving that party a real opportunity to see the work firsthand. The catch is discipline: the notice has to be genuine and documented, or a skipped witness point turns into a dispute later.
How it shows up on site
The ITP marks the point W, names who is invited, and states the notice — often given in working days. The crew logs the invitation and the response, then either records what the witness observed or notes that the party waived attendance and work proceeded.
In RTI the notice, the attendance or waiver, and the photos taken at the point live on the same step, so the record shows the party had their chance whether or not they took it.
Checklists that put witness point to work
Free, field-ready checklists, each with the photo every item needs before it can be submitted.
Related terms
- Hold pointA stop in the inspection and test plan where work cannot continue until a required party inspects and signs off the release.
- Inspection and test plan (ITP)A document that lays out, activity by activity, what gets inspected or tested, who does it, against which standard, and what record it produces.
- Quality control planThe project-specific document that defines how a contractor will control quality — who inspects what, to which standards, and how it's recorded.
- Definable feature of workA discrete, separately inspectable task or segment of work with its own start, finish, and acceptance criteria within the QC plan.
- Preparatory phase inspectionThe first of the three phases of control — a before-work review of submittals, materials, and criteria for a definable feature of work.
- Initial phase inspectionThe second phase of control — inspecting the first representative portion of a feature to set the workmanship standard for the rest.
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.