What is the responsibility of the COR in conjunction with the final invoice?

The responsibilities of the Contracting Officer Representative (COR) are integral to ensuring that a contract is executed properly, particularly concerning the final invoice. Approving the final invoice is a vital duty of the COR, as they must confirm that the work required under the contract has been completed satisfactorily before endorsing the payment. This ensures that the government only pays for completed and acceptable work.

In addition to approving the invoice, the COR also plays a role in providing feedback to the Contracting Officer (CO) on contractor performance. This feedback is crucial as it informs future decision-making, including potential contract renewals or adjustments. Assessing performance helps to maintain standards and accountability in contractor relationships.

Retrieving government property is another aspect of the COR's responsibilities. Ensuring that any government property used during the contract is returned is essential for maintaining records, accountability, and financial oversight.

Thus, the correct answer encompasses all aspects of these responsibilities, reflecting the comprehensive role the COR plays during the invoicing and contract completion process. Each of these tasks contributes to a thorough and responsible management of the contract from start to finish.