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IUID Tags and Labels UID Mil Std 130

What is UID and IUID?

UID, also known as IUID, is a compliance process in place to enable the traceability of assets established by the Department of Defense. The system serves to create a truly unique identification code for each asset, which separates it from any other in the world.

As a result, there are no duplicates or repeats. Every individual item gets its own code. As long as the correct procedures are followed, it ensures accuracy and reliability of information.

The DoD uses the UID system to track information such as asset value, location, quantity, and condition. This also allows decision-makers to track changes, monitor programs, and clean up any inefficiencies or issues that may arise.

UID vs. IUID vs. UII: What’s the Difference?

It can be difficult to make sense of all the acronyms involved with UID. The term UID is used in several ways. It most commonly refers to the marking label or tag on the asset. This is also referred to as UID Code, UID Label, or UID Tag.

It is trending toward being replaced by the term IUID, which is better at conveying the focus on item specific identification.

The IUID tags utilize a 2D barcode which is scanned. UII is the information which is embedded within the barcode. When the code is scanned, this information is accessible in specialized tracking software.

  • UID – Unique Identification

  • IUID – Item Unique Identification

  • UII – Unique Item Identifier

IUID and UID Tags and Labels

Department of Defense (DoD) Regulations

If you’re thinking UID codes are an optional choice, you’d be mistaken. Military UID labels are required by the Department of Defense. This not only includes internal government organizations, but also contractors. Generally, if you have a government contract to produce equipment for the military, you better make sure it is labeled correctly to IUID specifications. (These guidelines are spelled out in MIL-STD-130)

Accordingly, if your organization does not follow the UID requirements, it is possible your order will be denied, returned, or even unpaid. (Not news you want to find out about your government contract.)

DOD Assets which require a UID tracking code:

  • The acquisition cost for that unit is greater than $5,000
  • Serially Managed Items
  • Mission Essential Assets
  • Controlled Inventory


UID and IUID systems serve an important role for the DOD. They ensure full accountability, and also make tracking important assets a bit more manageable. This allows for greater efficiency and use of resources, as well as maintains safety and prevents errors. Make sure your government contracted equipment and products are up to standard.

Contact Us

At Metal Marker, we create high-quality UID and IUID labels, tags, and nameplates. Our custom ID solutions are perfect for government applications.

Our knowledgeable customer service representatives are waiting to help you find the perfect solution tailored to your needs. They are also ready to answer any questions you may have and get you started on your identification solution.


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    “Great product and service. Great quote and product turnarounds. Metal Marker has literally pulled us out of the fire.”

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    “Your Customer Service Representative has done an outstanding job taking care of our needs. Your Customer Service Representative has given us great service and we are very satisfied. Metal Marker is accommodating and easy to work with.”

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    “I never have to worry about quality or our shipments being late. I know that once something is in Metal Marker’s hands that it will be taken care of without a second thought or follow up from me.”

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