CORs are responsible for performing functions that do not require contract changes in the scope of work, specifications, cost, or duration within the meaning of the duties and limitations established by the appointing contracting officer. CORs are responsible for submitting reports that evaluate the supplier’s progress and performance. The contracting officer is responsible for explicitly informing the appointed CORs of the actual day-to-day duties and responsibilities that will facilitate the efficiency and effectiveness of transactions, because CORs act as liaisons between the contracting officer and the supplier, oversee the receipt and/or return of equipment, and oversee quality inspections. Ongoing management and reporting will be necessary to ensure that the supplier is consistently meeting the objectives established in the contract.