(a) A final settlement agreement reached during, or as a result of mediation, that resolves an entire claim or any designated and severable portion of a claim shall be in writing and signed by representatives of the contractor and the department who have authority to bind each respective party.(b) If the settlement agreement does not resolve all issues raised by the claim and counterclaim, the agreement shall identify the issues that are not resolved.(c) A partial settlement does not waive a contractor's rights under the Government Code, Chapter 2260, as to the parts of the claim that are not resolved.