AR 700-145 — Item Unique Identification
AR 700-145 governs Army policy for item unique identification, including criteria, planning, marking, and sustaining IUID marks.
- Publication number: AR 700-145
- Title: ITEM UNIQUE IDENTIFICATION
- Date: 05/29/2026
- Proponent: ASA (AL&T)
- Status: ACTIVE
View AR 700-145 on armypubs.army.mil
Related publications
AR 700-145 describes assigning unique item identifiers to personal property, marking items with 2D data matrix marks, and registering identifiers in the DoD IUID Registry. It requires IUID implementation plans to define marking coordination, milestones, contracts, funding, technical data updates, and mark quality surveillance.
Applies to: This policy applies to all Army owned or procured tangible personal property regardless of method of acquisition, current location, or custody arrangement.
Topics covered
- Item unique identification
- Unique item identifiers
- 2D data matrix marking
- DoD IUID Registry
- IUID implementation plans
- Automatic identification technology
- IUID mark quality surveillance
Questions and answers
What is item unique identification in AR 700-145?
IUID is the process of assigning a UII to personal property items in DoD inventory and physically marking the items with a 2D data matrix mark that contains the UII. (paragraph 2-1)
When must UIIs be registered in the DoD IUID Registry?
All UIIs are to be registered in the DoD IUID Registry once assigned to an item and upon government validation and acceptance. (paragraph 2-1)
Can a UII change during an item's life cycle?
A UII once assigned to an item is never changed throughout the items life cycle to include all minor, major, and complete reconfigurations and recapitalizations. (paragraph 2-1)
How often must IUID implementation plans be reviewed?
All IUID plans will be reviewed as indicated below to ensure they remain effective and compliant with current policies, regulations, or statutes. (paragraph 3-1)
What must IUID implementation plans identify for marking activities?
Define coordination requirements with marking activities. (paragraph 3-1)