| Code 1 | Routine call, obey speed limit. |
| Code 2 | Blue lights and siren, obey speed limit. |
| Code 3 | Blue lights and siren, not authorized to exceed the speed limit by more than 10 MPH. |
| Code 4 | Under control. No other units needed. |
| Code 5 | Surveillance or stakeout |
| Code 9 | Escort or convoy duty |