(c)(1) The Contracting Officer shall insert a clause substantially the same as provided at 2452.232-70, Payment Schedule and Invoice Submission (Fixed-Price), in all fixed-price solicitations and contracts except those for commercial services awarded pursuant to FAR Part 12.
(2) The Contracting Officer shall insert a clause substantially the same as provided at 2452.232-71, Voucher Submission (Cost-Reimbursement), in all cost-reimbursement solicitations and contracts when vouchers are to be sent directly to the paying office. The Contracting Officer shall insert the billing period agreed upon with the contractor (see also FAR clause 52.216-7, Allowable Cost and Payment).
(3) The Contracting Officer may substitute appropriate language for the clauses in (c)(1) and (2) above when payment under the contract will be made on the basis of other than the submission of an invoice or voucher, e.g., directly from proceeds of property sales.
