Item Unique Identifier 

Type - Data Synonym
Description: Item unique identification (IUID) provides for marking personal property items with a machine-readable Unique Item Identifier (UII), which is a set of globally unique data elements. This UII information is used to ensure accurate acquisition, repair, and deployment of items is efficient and effective. The UID of items is accomplished by marking items with a permanent 2-dimensional matrix that is encoded with the data elements necessary to construct a unique and unambiguous Unique Item Identifier.
IUID is required for all personal property items that are associated to products when any one or more of the following is true:
- Unit Acquisition cost is $5,000 or more;
- Items with a Unit Acquisition Cost below $5,000 when it is a DoD Serially Managed, Mission Essential, or Controlled item;
- Item with a Unit Acquisition Cost below $5,000, as determined by the Requiring Activity (e.g., Maintenance and Repair);
- Regardless of value, any DoD Serially Managed subassembly, component or part embedded with an item, and the Parent item which it is embedded.
Valuation applies to all items delivered to DoD, to include deliveries under T&M contracts. 
Information Exchange: ESOH Issue Description