While both Construction Quality Control Plans and Inspection and Test Plans are intended to control construction quality, your construction QC plan will focus on a wide-range of elements. Whereas, your inspection and test plan (ITP) will only focus on inspections and tests as a means of quality control.
Construction Quality Assurance/Quality Control Blog
An Inspection Test Plan (ITP) is a commonly required document that you'll need to submit with your construction quality control plan. Whether you're working on a private sector or government contract, clients today all want to see your inspection test plan. They want to know exactly what inspections and tests you'll be forming to control quality on their project.
In addition to telling your client what inspections and tests you'll do to control quality, your ITP is also a checklist for you to log the results of your inspections and tests during the project.