All though the Subcontract is setup as NEC option B, the subcontractor is still utilising CVI’s and issuing them for any ''additional" works they are carrying out. This is usually issued with the application for payment, and no EW notice or CEQ is issued nor is there a request for CE from the subcontractor.
Do CVI’s exist in NEC? Could these be accepted as EW notices? The CVI’s are written by the subcontractor but have not been verified by the main contractor team. The works have been carried out and they are a change to the works information.
How should these variations be assessed retrospectively?