(1) The rationale for the not-to-exceed price will be documented and retained in the contract file. Examples of such supporting rationale include—

(i) The Independent Government Cost Estimate;

(ii) Price analysis based on prior buys; and

(iii) The contractor’s proposal.

(2) The maximum not-to-exceed price is the firm-fixed price for firm-fixed price contracts, the ceiling price for fixed-price incentive contracts, and the estimated cost and fee for cost-reimbursement contracts.