ITP is the document that describes in detail what, by who, when and how something will be inspected or tested on site or off-site.
In some other cases it is called
Quality Control Plan or Regime and it’s main purpose is to plan and document the procedure and sequence that will be followed in order to provide objective evidence and results of
conformity of the works or materials.
Normally you will see the following in an ITP:
- the item that will be checked/inspected/tested (e.g.concrete strength)
- the document that requires this item to be checked (usually it is the contract or similar document-specification)
- the document that according to, this item will be inspected/tested (usually a standard or a statutory requirement)
- the kind of inspection that needs to be performed (visual inspection, document approval etc)
- the frequency that this inspection needs to be performed (e.g. for concrete slump test = once for every track)
- the objective criteria/tolerance parameters that will determine if the inspection/test for that item has passed or not
- the kind of document that will be prepared and saved as a record of pass or failure (usually a signed-off form, a testing machine print-out, a photo etc)
- if this record needs to be a deliverable, meaning that it needs to be kept and handed over to the Client at the end of the Project as part of the As-Built Folders
and finally
- the responsibilities of every entity (Contractor, QC Engineer, Client’s Representative etc)
So, we are basically talking about a table giving all of the above information.
In my opinion, creating an ITP is not the difficult part...
The most difficult thing is to implement it and striclty follow it.