This keyword specifies the format of the PIN block. The 8-byte value must be left-justified and padded with blanks. Refer to Table 1 for a list of valid values.
| Format value | Description |
|---|---|
| ECI-2 | Eurocheque International format 2 |
| ECI-3 | Eurocheque International format 3 |
| ISO-0 | ISO format 0, ANSI X9.8, VISA 1, and ECI 1 |
| ISO-1 | ISO format 1 and ECI 4 |
| ISO-2 | ISO format 2 |
| ISO-3 | ISO format 3 |
| VISA-2 | VISA format 2 |
| VISA-3 | VISA format 3 |
| VISA-4 | VISA format 4 |
| 3621 | IBM 3621 and 5906 |
| 3624 | IBM 3624 |
| 4704-EPP | IBM 4704 with encrypting PIN pad |