Reference Codes
| NAL Value Change Codes | |
| Code | Description |
| 01 | VAB change |
| 02 | Court required change |
| 03 | PA chg relating to physical characteristic;petition filed |
| 04 | PA chg relating to physical characteristic;NO petition filed |
| 05 | PA chg due to cont'd analysis or discovery of info;petition filed |
| 06 | PA chg due to cont'd analysis or discovery of info;NO petition filed |