Which of the following is NOT a type of Cost Reimbursement Contract?

A Flat Fee Contract is not considered a type of Cost Reimbursement Contract because it typically involves a fixed price that does not vary based on the actual costs incurred during project execution. In a Flat Fee Contract, the contractor agrees to perform a specified scope of work for a predetermined amount, regardless of actual expenses. This contrasts with Cost Reimbursement Contracts, which are specifically designed to allow contractors to be reimbursed for incurred costs in addition to a fee, reflecting their actual expenditures.

In contrast, Cost Plus Incentive Fee (CPIF), Cost Plus Fixed Fee (CPFF), and Cost Plus Award Fee (CPAF) are all variants of Cost Reimbursement Contracts. These contract types provide mechanisms for covering allowable costs while also offering additional financial incentives to the contractor based on performance, such as providing incentives for staying under budget or achieving specific milestones. Therefore, identifying Flat Fee Contracts as separate from these reimbursement arrangements is essential for understanding how risk and compensation can differ among various contracting methods.