| ID | Name | Required | List |
|---|---|---|---|
| ORI | Originating Agency Identifier (ORI) | Y | N |
| NTN | NICS Transaction Number (NTN) | Y | N |
| NRI | NICS Record Identifier (NRI) | N | N |
| FBI | FBI Number/UCN (FBI) | N | N |
| NIC | NCIC Number (NIC) | N | N |
| WAC | WACIC Number (WAC) | N | N |
| SID | State Identification Number (SID) | N | N |
| ATN | Attention of Recipient (ATN) | N | N |
| FMT | N | N |