| Code Value |
Definition |
| Barcode | Identifier is obtained by a barcode reader device. |
| CBPRequest | Identifier was assigned at the request of CBP. |
| LPR | Identifier is obtained by a LPR device. |
| ManualEntry | Identifier is obtained by a person and manually entered. |
| Missing | Identifier is missing - method of acquisition is not applicable |
| OCRScan | Identifier is obtained by an OCR device. |
| Other | Method for obtaining the identifier is not enumerated in the list of methods. |
| RFI | Identifier is obtained by a RFI reader device. |
| unknown | Method for obtaining the identifier is unknown. |