Change 3, 08/27/2019
Department of Defense
INSTRUCTION
NUMBER 8320.04
September 3, 2015
Incorporating Change 3, August 27, 2019
USD(A&S)
SUBJECT: Item Unique Identification (IUID) Standards for Tangible Personal Property
References: See Enclosure 1
1. PURPOSE. In accordance with the authority in DoD Directive 5134.01 (Reference (a)), this
instruction:
a. Reissues DoD Instruction (DoDI) 8320.04 (Reference (b)) to establish policy and assign
responsibilities for the process of uniquely identifying tangible personal property and their
associated selected attributes. The unique item identifier (UII) will be used globally as the
common data key in financial, property accountability, acquisition, and logistics (including
supply and maintenance) automated information systems to enable asset accountability,
valuation, life-cycle management, and counterfeit materiel risk reduction.
b. Under the authority of DoDI 8320.03 (Reference (c)):
(1) Assigns responsibilities and prescribes procedures to enable accountability and
acquisition value for uniquely identified items of tangible personal property through use of
transaction-derived data in a net-centric environment.
(2) Prescribes standards for constructing the UII and marking both the item and its
packaging.
(3) Promotes correlation of data, and information sharing on items with UIIs between
users in a net-centric environment throughout the DoD Components.
(4) Assigns responsibilities and establishes procedures for operation and maintenance of
the DoD IUID Registry.
c. Prescribes the DoD IUID Registry as:
(1) The central repository for government items with UII acquired after January 1, 2004,
and for UII data elements established at delivery in accordance with subpart 252.211-7003 of
