US lawFederal (United States)RegulationsTitle 48 CFR — Federal Acquisition Regulations SystemChapter 1Part 4Subpart 4.164.160048 C.F.R. § 4.1600Scope of subpart.Last amended: 2017Year: 2026Length: 24 wordsOfficial source Cite as 48 C.F.R. § 4.1600 (2026)This subpart prescribes policies and procedures for assigning unique Procurement Instrument Identifiers (PIID) for each solicitation, contract, agreement, or order and related procurement instrument.Next48 C.F.R. § 4.1601