DoD UID Compliance

What is the UII (Unique Item Identifier)?

UII Requirements and 2D Barcode Construction

If your items qualify for Item Unique Identification (IUID), as mandated by DFARS Clause 252.211-7003, they will need Unique Item Identifiers (UII).

According to DFARS 252.211-7003, the UII, or Unique Item Identifier, is a set of data that is "globally unique and unambiguous." This set of data elements is marked on qualifying items with a DataMatrix ECC200 2D barcode symbol. The data elements of the UII are encoded into the DataMatrix barcode with a software package, such as CODESOFT® Barcode Labeling & Integration Software.

How is the UII Constructed?

The method used to construct the UII determines the set of data elements that are encoded into the DataMatrix.

According to MIL-STD-130N, the UII may be encoded by using one of the following constructs:

  1. UII Construct 1: Serial Number is Unique within the Enterprise.
  2. UII Construct 2: Serial Number is Unique within the Original Part, Lot or Batch Number, which is Unique within the Enterprise.
  3. DoD IUID Equivalent: Complete value to serve as the UII.

1. Creating the UII Using UID Construct 1
Includes a combination of the following data elements:

  • Issuing Agency Code (IAC)*
  • Enterprise Identifier (EID)
  • Serial Number

2. Creating the UII Using UID Construct 2
Includes a combination of the following data elements:

  • Issuing Agency Code (IAC)*
  • Enterprise Identifier (EID)
  • The Original Part, Lot, or Batch Number
  • The Serial Number

* Note - Issuing Agency Codes (IACs) do not need to be marked on the item.

3. IUID Equivalent: IUID Equivalents are complete values that are already in existence to serve as the UII. These IUID Equivalents must meet the following criteria:

  • Must contain an enterprise identifier.
  • Must uniquely identify an individual item within an enterprise identifier, product, or part number.
  • Must have an existing Data Identifier (DI) and Application Identifier (AI) listed in ANSI MH 10.8.2.
 

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