An inspection and test plan lists every inspection, test, hold point and sign-off for a scope of work. What goes in an ITP, how hold and witness points work, and how to track it through the job.
An inspection and test plan (ITP) is the document that says, for a defined scope of work, which inspections and tests will be done, at what stage, against which acceptance criteria, and who has to be present or sign off before work continues. It is used across construction, fabrication and manufacturing, usually agreed with the client before the work starts. A good ITP turns the specification into a sequence of checks; a poor one is a copy of last project's table with the project name changed.
The inspection type column is what gives an ITP its force. A hold point means work must stop until the named party has inspected and released it — pouring concrete before the reinforcement is inspected is the classic example. A witness point means the party is given notice and may attend, but work can continue if they do not. A review point means the records are checked afterwards rather than the activity itself. Agree the notice period for hold and witness points up front, or the plan will stall the programme.
Keep hold points for checks that cannot be verified later. If a defect would be buried, covered or impossible to test once the next activity starts, it belongs at a hold point; everything else can usually be a witness or review point.
Ettex Records works well as the live version of the plan: one row per ITP line with its reference, inspection type, responsible party, status and attached certificates. Filtering by open hold points shows what is blocking the programme this week. The same register can sit alongside your submittal log and your quality control checklist, so approvals, inspections and defects are tracked in one place.
ITP stands for inspection and test plan: a document listing the inspections, tests and hold points for a scope of work, with acceptance criteria and responsibilities.
Usually the contractor or fabricator performing the work, reviewed and approved by the client or their engineer before the work begins.
The ITP plans which checks happen, when and who signs off. A checklist is the record used to perform one of those checks on a specific element.
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