| Function | Description | Message Key(s) |
|---|---|---|
| ZA | TEST ARTICLE INQUIRY TRANSACTION | ZA |
| ZB | TEST BOAT INQUIRY TRANSACTION | ZB |
| ZE | DATE OF ENTRY INQUIRY TRANSACTION | ZE |
| ZG | GUN INQUIRY TRANSACTION | ZG |
| ZI | TRIPLE I ADMINISTRATIVE INQUIRY | ZI |
| ZO | TEST ORI INQUIRY TRANSACTION | ZO |
| ZR | QUERY CRIMINAL HISTORY FOR RECORD EXISTANCE | ZR |
| ZRS | TRIPLE I STATUS FLAG VERIFICATION MESSAGE | ZRS |
| ZS | SECURITIES TEST INQUIRY TRANSACTION | ZS |
| ZV | TEST VEHICLE INQUIRY TRANSACTION | ZV |
| ZW | TEST PERSON INQUIRY TRANSACTION | ZW |