- The Subcontractor shall not be entitled to receive any compensation for extra work or materials or for changes of any kind regardless of whether the same was ordered by the Contractor or any of its representatives, unless a change order therefore has been issued in writing by the Contractor. If extra work is ordered by the Contractor and the Subcontractor performs such work without a written order, the Subcontractor shall be deemed to have waived any claim for compensation for such extra or change order of work.