Caltrans District 8 covers Riverside and San Bernardino Counties, which includes 49 incorporated cities. The TMC is located in San Bernardino and is co-located with the CHP.
| Caltrans |
| Caltrans Regional TMCs |
| PeMS |
| Roadway/Railroad Inspection Facilities |
| Caltrans TMC Roadside Equipment |
| Video Surveillance Clearing House |
| Excise Summary Terminal Activity Reporting System (ExSTARS) |