(c)(i) Send case files to the contract financing office within 15 calendar days after the end of the 30-day period following the contracting officer’s demand for payment. The address is as follows:

Defense Finance and Accounting Service-Columbus Center

Attn: DFAS-JDCBB/CO

Debt Management Office, P.O. Box 182559

Columbus, Ohio 43218-2559.

(ii) The case file must include a copy of the contracting officer’s demand; a statement as to whether or not the contract contains an interest clause; and, if so, a copy of the clause or a reference to the clause number.

(iii) If the debt represents excess costs incurred in purchasing supplies or services against the account of a defaulted contractor, the case file shall include –

(A) The name and address of the replacement contractor;

(B) The disbursing office voucher number;

(C) The date paid;

(D) Bills of lading numbers, if any;

(E) The name of the carrier, when applicable; and

(F) The name and symbol number of the disbursing officer.

(iv) If the debt represents liquidated damages, the case file shall include an explanation of the basis for assessing liquidated damages.