UID Enumeration
The following enumeration constructs are approved:
- UID Construct 1, composed of Issuing Agency Code, an Enterprise Identifier, and a Serial Number unique within the Enterprise
- UID Construct 2, composed of Issuing Agency Code, an Enterprise Identifier, a Part Number or Batch/Lot Code, and a Serial Number (unique within the Part Number)
- Vehicle Identification Number (VIN)
- Global Returnable Asset Identifier (GRAI)
- Global Individual Asset Identifier (GIAI)
- Electronic Serial Number (ESN), typically assigned to cell phones
Read more about this topic: UID-marking