PGI 232.604 Demand for payment.
(1) For contract debts resulting from other than a termination for default, the office that first determines an amount due, whether it be the contract administration office, the contracting office, the disbursing office, or the selling office/agency, shall—
(i) Make a demand for payment; and
(ii) Provide a copy of the demand to the payment office cited in the contract.
(2) For contract debts resulting from a termination for default, the contracting officer shall make the demand and direct the debtor to make such payment to the designated office.