Q: Does the serial number on the UID (CAGE, PN ,SN) have to match the serial number of the unit? For example, Part number 5678-1 has a serial number of 12 on it. Does the UID serialization part have to be ’12’, or just a unique concatenated UID ? We seem to mix serial number (part) with serial number (UID)…should they be one in the same? – Linda M.
A: The short answer is no the serialization used to create the UII and marked on the unit does not have to match the serialization on the part. In fact, when IUID is implemented by an integrator who does not use a subcontractor flowdown contract clause or when applied to legacy inventory, it does not match. Keep in mind that the original manufacturer, part number and serialization MUST still be reported to the DoD IUID Registry as additional marked data.
The DoD rules say that the entity ensuring uniqueness must do so within their Enterprise Identifier (e.g., CAGE) and may not use the enterprise identifier of another without permission. For a large integrator, it is then unlikely you’ll be able to use either a supplier’s part number or serial number under your CAGE since there could be duplication among your suppliers. Some suppliers use elaborate approaches to using the manufacturer data, but this isn’t required and is much more difficult to manage. I’ve even seen supplier using the manufacturer’s CAGE+P/N+S/N as part of their serialization. To me that is overly complicated and not necessary.
Since the UII itself is intended only to ensure uniqueness, you need not use the original manufacturer’s data. How you implement this depends on whether you intend to capture only the UII or whether item data (e.g. Current Part Number, NSN) are required by the customer or provide value in your business processes during production or when providing lifecycle support. Where a generic UII is associated with the product data when the marking is applied is often referred to as “license plate” marking as follows :
- Use a fully concatenated UII within your CAGE and a sequential serial number you manage and guarantee uniqueness
- Procure marking solutions from a marking supplier who manages the UII uniquely under their CAGE using a fully concatenated UII (e.g., Data Identifier “25S”)
Where item data is also required the above “license plate” approaches have to be adjusted. In these cases the guaranteed unique UII may be used but must be encoded in the ECC 200 Data Matrix along with the required additional data (e.g. current part number, NSN, export control indicator).
There are also other options that may be considered depending on your unique scenario.
I hope this answers your immediate question. Please feel free to reach out to Camcode if you would like to discuss this further or need implementation support.