| Code Value | Definition |
|---|---|
| 0 | Not Applicable |
| 2 | Non-Emergency, Non-Transport |
| 3 | Non-Emergency Transport |
| 4 | Emergency Operation, Emergency Warning Equipment Not in Use |
| 5 | Emergency Operation, Emergency Warning Equipment in Use |
| 6 | Emergency Operation, Emergency Warning Equipment in Use Unknown |
| 8 | Not Reported |
| 9 | Unknown |