DFARS 204.1603 — Procedures
Regulatory text. Not legal advice.
(a)
(a) Elements of a PIID. DoD-issued PIIDs are thirteen characters in length. Use only alpha-numeric characters, as prescribed in FAR 4.1603 and this subpart. Do not use the letter I or O in any part of the PIID.
(3) Position 9.
(A) DoD will use three of the letters reserved for departmental or agency use in [FAR 4.1603](3) in this position as follows:
(1) Use M to identify purchase orders and task or delivery orders issued by the enterprise FedMall system.
(2) Use S to identify broad agency announcements and commercial solutions openings.
(3) Use T to identify automated requests for quotations by authorized legacy contract writing systems. See PGI [DFARS 204.1603](3)(A)(3) for the list of authorized systems.
(B) Do not use other letters identified in [FAR 4.1603](3) as “Reserved for future Federal Governmentwide use” or “Reserved for departmental or agency use” in position 9 of the PIID.
(C) Do not use the letter C or H for contracts or agreements with provisions for orders or calls.
(4) Positions 10 through 17. In accordance with [FAR 4.1603](4), DoD-issued PIIDs shall only use positions 10 through 13 to complete the PIID. Enter the serial number of the instrument in these positions. A separate series of serial numbers may be used for any type of instrument listed in [FAR 4.1603](3). DoD components assign such series of PIID numbers sequentially. A DoD component may reserve blocks of numbers or alpha-numeric numbers for use by its various activities. Use C in position 10 to identify the solicitation as a commercial solutions opening.
(b)
(b) Elements of a supplementary PIID. In addition to the supplementary PIID numbering procedures in [FAR 4.1603], follow the procedures contained in paragraphs (b)(2)(ii)(1) and (2) of this section. See PGI [DFARS 204.1603] for examples of proper supplementary PIID numbering.
(2)(ii) Positions 2 through 6. In accordance with [FAR 4.1603](2)(ii), DoD-issued supplementary PIIDs shall, for positions 2 through 6 of modifications to contracts and agreements, comply with the following:
(1) Positions 2 and 3. These two digits may be either alpha or numeric characters, except—
(i) Use K, L, M, N, P, and Q only in position 2, and only if the modification is issued by the Air Force and is a provisioned item order;
(ii) Use S only in position 2, and only to identify modifications issued to provide initial or amended shipping instructions when—
(a) The contract has either FOB origin or destination delivery terms; and
(b) The price changes;
(iii) Use T, U, V, W, X, or Y only in position 2, and only to identify modifications issued to provide initial or amended shipping instructions when—
(a) The contract has FOB origin delivery terms; and
(b) The price does not change; and
(iv) Use Z only in position 2, and only to identify a modification which definitizes a letter contract or a previously issued undefinitized modification.
(2) Positions 4 through 6. These positions are always numeric. Use a separate series of serial numbers for each type of modification listed in paragraph (b)(2)(ii) of this section.
Citation history: [81 FR 9785, Feb. 26, 2016, as amended at 88 FR 55938, Aug. 17, 2023]
Source: eCFR • Pulled 2026-04-16