## Subpart 4.16—Unique Procurement Instrument Identifiers

### 4.1600 Scope of subpart.

This subpart prescribes policies and procedures for assigning unique Procurement Instrument Identifiers (PIID) for each solicitation, contract, agreement, or order and related procurement instrument.

### 4.1601 Policy.

(a) Procurement Instrument Identifier (PIID). Agencies shall have in place a process that ensures that each PIID used to identify a solicitation or contract action is unique Governmentwide, and will remain so for at least 20 years from the date of contract award.

(b) Agencies must submit their proposed identifier format to the General Services Administration’s Integrated Award Environment Program Office, which maintains a registry of the agency-unique identifier schemes.

(c) The PIID shall consist of alpha characters in the first positions to indicate the agency, followed by alpha-numeric characters according to agency procedures.

(d) The PIID shall be used to identify all solicitation and contract actions. The PIID shall also be used to identify solicitation and contract actions in designated support and reporting systems (e.g., Federal Procurement Data System, Past Performance Information Retrieval System), in accordance with regulations, applicable authorities, and agency policies and procedures.

(e) Agencies shall not change the PIID, unless the conditions in paragraph (f) of this section exist.

(f) If continued use of a PIID is not possible or is not in the Government’s best interest solely for administrative reasons (e.g., for implementations of new agency contracting systems), the contracting officer may assign a new PIID by issuing a modification. The modification shall clearly identify both the original and the newly assigned PIID.

### 4.1602 Identifying the PIID and supplementary PIID.

(a) Identifying the PIID in solicitation and contract award documentation (including forms and electronic generated formats). Agencies shall include all PIIDs for all related procurement actions as identified in paragraphs (a)(1) through (a)(5) of this section.

(1) Solicitation. Identify the PIID for all solicitations. For amendments to solicitations, identify a supplementary PIID, in conjunction with the PIID for the solicitation.

(2) Contracts and purchase orders. Identify the PIID for contracts and purchase orders.

(3) Delivery and task orders. For delivery and task orders placed by an agency under a contract (e.g., indefinite delivery indefinite quantity (IDIQ) contracts, multi-agency contracts (MAC), Governmentwide acquisition contracts (GWACs), or Multiple Award Schedule (MAS) contracts), identify the PIID for the delivery and task order and the PIID for the contract.

(4) Blanket purchase agreements and basic ordering agreements. Identify the PIID for blanket purchase agreements issued in accordance with 13.303, and for basic agreements and basic ordering agreements issued in accordance with subpart 16.7. For blanket purchase agreements issued in accordance with subpart 8.4 under a MAS contract, identify the PIID for the blanket purchase agreement and the PIID for the MAS contract.

(i) Orders. For orders against basic ordering agreements or blanket purchase agreements issued in accordance with 13.303, identify the PIID for the order and the PIID for the blanket purchase agreement or basic ordering agreement.

(ii) Orders under subpart 8.4. For orders against a blanket purchase agreement established under a MAS contract, identify the PIID for the order, the PIID for the blanket purchase agreement, and the PIID for the MAS contract.

(5) Modifications. For modifications to actions described in paragraphs (a)(2) through (a)(4) of this section, and in accordance with agency procedures, identify a supplementary PIID for the modification in conjunction with the PIID for the contract, order, or agreement being modified.

(b) Placement of the PIID on forms. When the form (including electronic generated format) does not provide spaces or fields for the PIID or supplementary PIID required in paragraph (a) of this section, identify the PIID in accordance with agency procedures.

(c) Additional agency specific identification information. If agency procedures require additional identification information in solicitations, contracts, or other related procurement instruments for administrative purposes, identify it in such a manner so as to separate it clearly from the PIID.