Unique Identification
What is IUID?

Unique Identification (IUID) is a new method established by the Department of Defense (DoD) to identify its tangible assets. Suppliers are required to encode the IUID data into a 2D Data Matrix symbol and directly apply it to specific tangible items to help facilitate item tracking in DoD business systems. The data will also be used for management, financial, accountability, and asset management purposes.

What does IUID look like?

direct part marking

What items require a UII mark?
A Data Matrix symbol must be applied to all parts that fall into these specific categories:

Items >= $5,000
Serially managed
Mission essential
Controlled inventory
Consumable
Permanent identification necessary
Subassemblies, components, and parts embedded within items as specified in an Exhibit or CDRL

For more information download a PDF copy of the DoD's Unique Identification Overview presentation.

IUID Decision Tree


Click to Enlarge

For more information, view the DoD’s Guide to Uniquely Identifying Items v1.5 (updated 6/7/05) or DoD IUID 101 (added 7/07/05).