Sonoma Transportation Inc is an active interstate carrier based in Chino, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 4 | 0 | 0 |
| Tractors | 4 | 0 | 0 |
| Trailers | 5 | 0 | 0 |
| Total Power Units | 4 | ||
Distinct vehicles · 24 mo
vs 4 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 88% | 95% | Worse than most peers |
| HOS Compliance | 91% | 96% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 59% | 85% | Around peer average |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 1 | — | 6.67% |
| Vehicle | 0 | 1 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Hours-of-Service Compliance |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 15, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Jan 11, 2026 | AR | TRUCK TRACTOR | 0 | 0 |
| Oct 27, 2025 | AR | TRUCK TRACTOR | 1 | 0 |
| Aug 20, 2025 | CA | TRUCK TRACTOR | 3 | 1 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 4.26 | — |
| HOS Compliance | 3 | 2.92 | — |
| Vehicle Maintenance | 5 | 5.94 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
Where they run
Inspected in 5 states. Top state CA accounts for 38% of activity. Activity outside home state (CA): 62%.
| 2 |
| 1 |
| 1 |
| Vehicle Maintenance | 2 | 0 | 1 |
| Unsafe Driving | 1 | 0 | 0 |
| Aug 8, 2025 |
| WA |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Jul 25, 2025 | CA | TRUCK TRACTOR | 1 | 1 |
| Jun 3, 2025 | IL | TRUCK TRACTOR | 0 | 0 |
| Jan 13, 2025 | NM | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Oct 27, 2025 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| Aug 20, 2025 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |
| Aug 20, 2025 | 39520BELDNV | HOS (ELD) - The ELD display screen is not viewable by an authorized official without entering the CMV | Hours-of-Service Compliance | — |
| Aug 20, 2025 | 3958EHOSPDOOS | HOS (Property) - Driver produces a false record of duty status that concealed an HOS limitation violation after the last rest period. Explain: | Hours-of-Service Compliance | Yes |
| Jul 25, 2025 | 393201AFRSC | Frame - Cracked siderail web around the radius into the bottom flange | Vehicle Maintenance | Yes |