(b)(2) Other than commercial items. The OF–347 shall be mandatory for use by domestic contracting activities for issuing purchase orders, delivery orders, and BPAs, unless ordering against another Federal agency contract that stipulates a different form (e.g., DD–1155, Order for Supplies or Services:) or, unless the Procurement Executive has approved another form. The OF–347 may also be used as a voucher. In lieu of the OF–347, DOS overseas contracting activities may use the DS–2076, Purchase Order, Receiving Report, and Voucher; and DS–2077, Continuation Sheet. Contracting activities may use the Optional Form (OF) 127, Receiving and Inspection Report, for documenting receipt and inspection.