48 C.F.R. § 2813.70-2
(a) The certified invoice procedure for purchases may be used only under FAR part 13 and this part, subject to the following:
(e) The administrative office must approve the invoice and, if approved, forward it to the Finance Office for payment. Before forwarding the invoice to the Finance Office, the administrative office shall place the following statement on the invoice, along with the accounting and appropriation data:
