Which PIID is used to identify amendments to solicitations and modifications?

The correct identification of amendments to solicitations and modifications is represented by the Supplementary PIID (Procurement Instrument Identifier). This PIID serves the specific purpose of tracking changes, updates, or alterations made to the original solicitation or contract document. By using a Supplementary PIID, stakeholders can clearly reference and manage various aspects of the procurement process, allowing for better visibility and organization of amendments throughout the lifecycle of a solicitation.

The Main PIID denotes the primary identifier for the original solicitation or contract but does not convey the specific modifications that may have been made. Instructional PIIDs and Attachments, while serving their own purposes in the procurement framework, do not encapsulate the function of recording amendments. Thus, the Supplementary PIID stands out as the essential tool for documenting changes effectively.