(e)(5) HHS personnel that sign delivery documents, invoices, etc., verifying the receipt of an item or service shall forward such documents to the fiscal office or other paying office that the OPDIV designates. The fiscal or other paying officer shall use the signed document, invoice, etc., as the basis for payment. Alternatively, OPDIVs may use electronic methods to document, and transmit to the paying office, the receipt, inspection, and acceptance of items or services for payment purposes, provided such methods are authorized in local fiscal procedures. Contracting offices shall establish procedures to ensure that funds are available prior to placement of orders.