| Code | Bedeutung |
| 90 00 | No further qualification - command successful - Bei asyncronen Karten |
| 90 01 | command successful - Bei syncronen Karten |
| 61 xx | SW2 indicates the number of response bytes still available. Use GET RESPONSE to access this data. |
| 62 xx | Warning - state unchanged |
| 62 00 | Warning - no information provided |
| 62 81 | Warning - part of returned data may be corrupt |
| 62 82 | Warning - end of file/record reached (bad cmd) |
| 62 83 | Warning - selected file invalidated |
| 62 84 | Warning - bad file control information format |
| 63 xx | Warning - state unchanged |
| 63 00 | Warning - no information provided |
| 63 81 | Warning - file filled up with last write |
| 63 Cx | Warning - counter value is x |
| 64 xx | Error - state unchanged |
| 65 xx | Error - state changed |
| 65 00 | Error - no information provided |
| 65 81 | Error - memory failure |
| 66 xx | Security Error |
| 67 00 | Check Error - wrong length |
| 68 xx | Check Error - CLA function not supported |
| 68 00 | Check Error - no information provided |
| 68 81 | Check Error - logical channel not supported |
| 68 82 | Check Error - secure messaging not supported |
| 69 xx | Check Error - command not allowed |
| 69 00 | Check Error - no information provided |
| 69 81 | Check Error - command incompatible with file structure |
| 69 82 | Check Error - security status not satisfied |
| 69 83 | Check Error - authentication method blocked |
| 69 84 | Check Error - referenced data invalidated |
| 69 85 | Check Error - conditions of use not satisfied |
| 69 86 | Check Error - command not allowed (no current EF) |
| 69 87 | Check Error - expected SM data objects missing |
| 69 88 | Check Error - SM data objects incorrect |
| 6A xx | Check Error - wrong parameters |
| 6A 00 | Check Error - no information provided |
| 6A 80 | Check Error - incorrect parameters in data field |
| 6A 81 | Check Error - function not supported |
| 6A 82 | Check Error - file not found |
| 6A 83 | Check Error - record not found |
| 6A 84 | Check Error - not enough memory space in the file |
| 6A 85 | Check Error - Lc inconsistant with TLV structure |
| 6A 86 | Check Error - inconsistant parameters P1-P2 |
| 6A 87 | Check Error - Lc inconsistant with P1-P2 |
| 6A 88 | Check Error - referenced data not found |
| 6B 00 | Check Error - wrong parameters |
| 6C xx | Check Error - wrong length - xx is the correct length |
| 6D 00 | Check Error - instruction code not supported or invalid |
| 6E 00 | Check Error - Class not supported |
| 6F 00 | Check Error - no precise diagnosis |