For each activity on a construction site, there would be a corresponding Method Statement as well as Inspection and Test Plan including Checklist shall be developed.
Here is a definition of ITP
Inspection & Test Plan (ITP) – An Inspection & Test Plan is the program of inspection, testing of materials, and survey shall be prepared and submitted by the contractor to the Engineer for approval before usage and application to the site.
Here is a definition of Checklist
Checklist – A list of items shall be noted or checked in a completed activity. It is always attached to the Inspection Request. To be signed by concerns parties once the inspection is approved.
Preparation, Review and Approval
Inspection and Test Plan is made and issued by the Quality Engineer, it should then be reviewed by the Quality Manager, Construction Manager and approved by Project Manager before it shall submit to the Engineer.
As it is always required by the contract or specification, Method Statement and Inspection and Test Plan including Checklist shall be submitted to the Engineer for approval.
The QA/QC Engineer shall maintain a register of all Inspection and Test Plan (ITP) including Checklists.
The QA/QC Engineer shall maintain a complete master set of approved Inspection and Test Plan
The inspection process shall have the inspection criteria for every Inspection and Test Plan item. Here are the following:
Surveillance ( S ) = random attendance at site, no signature required on the Inspection Request ( IR ) or its accompanying documentation.
Execution ( E ) = attendance at the site is a must, the signature is always on Inspection Request and Checklist.
Witness (W) = attendance at the site is expected, the signature is required on check sheet of Inspection Request ( IR ) and Checklist, but if the signatory is not present to sign at the time, follow on work may proceed and the document(s) to be singed later.
Hold Point (H) = attendance at the site is mandatory and signature is required on the check sheet of Inspection Request at the time of the inspection to release the following work.
Review ( R ) = documents to be reviewed, no signature required on the Inspection Request or its accompanying documentation.
Records (RE) = documentation to be recorded, no signature required on the Inspection Request or its accompanying documentation.
Test ( T ) = attendance is required, signature required on check sheet of Inspection request and checklist.
Here is the sample format of the Inspection and Test Plan ( ITP )