(a) Whenever practicable, include a requirement for contractor identification of sources of supply in all contracts for the delivery of supplies. The identification shall include -
(1) The item's actual manufacturer or producer, or all the contractor's sources for the item;
(2) The item's national stock number (if there is one);
(3) The item identification number used by -
(i) The actual manufacturer or producer of the item; or
(ii) Each of the contractor's sources for the item; and
(4) The source of any technical data delivered under the contract.
(b) The requirement in paragraph (a) of this section does not apply to contracts that are -
(1) For commercial items; or
(2) Valued at or below the simplified acquisition threshold.
[56 FR 36345, July 31, 1991, as amended at 64 FR 2597, Jan. 15, 1999]