If the contractor fails to submit with bill the document of handing over charge on inventory form duly signed by the user department concerned, then the amount deducted will generally be ________.

The payment process for engineering work is:

1.  Payments for all the works done/supplies made by the contractors are made on the basis of measurements recorded in the measurement books.
2. Contractors' bills may be submitted in any one of the following forms: Running on account bill and final bill.
3. The running-on-account bill is meant for regular payment during the progress of the work.
4. The running-on-account payment is generally made once a calendar month.
5. At the time of the final bill, If the contractor fails to submit with the bill the document of handing over charge on inventory form duly signed by the user department concerned, then the amount deducted will generally be 5%