(c) To ensure compliance with 10 U.S.C. 3743(a) and 41 U.S.C. 4303(a)-

(1) Final indirect cost rates shall be used for contract closeout for a business unit, unless the quick-closeout procedure in 42.708 is used. These final rates shall be binding for all cost-reimbursement contracts at the business unit, subject to any specific limitation in a contract or advance agreement; and

(2) Established final indirect cost rates shall be used in negotiating the final price of fixed-price incentive and fixed-price redeterminable contracts and in other situations requiring that indirect costs be settled before contract prices are established, unless the quick-closeout procedure in 42.708 is used.