English to Italian Law/Patents Law (general)

Subject to the limits indicated in the Special Conditions, if the contract contains a bill of quantities or breakdown of the overall price giving an itemised list of the scale and prices of the various works, and if modifications required by the Contracting Authority or resulting from circumstances which are caused neither by the Contractor's negligence nor by any action on his part alter the scale of some of the works in such a manner that the quantity shown for any item is increased or decreased by 20% or more, the Contractor shall, on making a reasoned request to the Contracting Authority, be entitled to compensation for any damage he has suffered as a result of modifications to the original project, once all the quantities in the relevant item have been executed for the purposes of the contract