Mt Diablo Unified School Dist is an active intrastate non-hazmat carrier based in Concord, CA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Buses (16+) | 112 | 0 | 0 |
| Total Power Units | 112 | ||
Distinct vehicles · 24 mo
vs 112 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 | 0% | 0% | Better than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 29% | 82% | Better than most peers |
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 | 0 | — | 6.67% |
| Vehicle | 0 | 12 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2025 | 0 | 1 | 1 | 1 |
| Jul 1, 2024 | 0 | 1 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 14 | 4 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 4, 2026 | CA | SCHOOL BUS | 2 | 1 |
| Mar 4, 2026 | CA | SCHOOL BUS | 0 | 0 |
| Mar 4, 2026 | CA | SCHOOL BUS | 0 | 0 |
| Mar 4, 2026 | CA | SCHOOL BUS | 0 | 0 |
| Mar 4, 2026 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 11 | 0.40 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 1 state. Top state CA accounts for 100% of activity. Activity outside home state (CA): 0%.
| 7 |
| CA |
| SCHOOL BUS |
| 0 |
| 0 |
| Mar 4, 2026 | CA | SCHOOL BUS | 0 | 0 |
| Mar 3, 2026 | CA | SCHOOL BUS | 0 | 1 |
| Mar 3, 2026 | CA | SCHOOL BUS | 0 | 0 |
| Mar 3, 2026 | CA | SCHOOL BUS | 0 | 0 |
| Mar 3, 2026 | CA | SCHOOL BUS | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 4, 2026 | 39343BBATV | Brake - Air towing vehicle unable to actuate trailer parking/emergency brakes manually | Vehicle Maintenance | — |
| Mar 4, 2026 | 3939ALTSI | Lighting - Turn signal - Any inoperative on the rearmost vehicle. | Vehicle Maintenance | Yes |
| Mar 3, 2026 | 39340AB | Brake - Inadequate braking system | Vehicle Maintenance | — |
| Mar 3, 2026 | 39343BBATV | Brake - Air towing vehicle unable to actuate trailer parking/emergency brakes manually | Vehicle Maintenance | — |
| Mar 2, 2026 | 39351CBLPW | Air Brake - Low pressure warning device missing/inoperative | Vehicle Maintenance | Yes |
| Mar 2, 2026 | 39343BBATV | Brake - Air towing vehicle unable to actuate trailer parking/emergency brakes manually | Vehicle Maintenance | — |
| Mar 2, 2026 | 39351CBLPW | Air Brake - Low pressure warning device missing/inoperative | Vehicle Maintenance | Yes |
| Mar 2, 2026 | 39351CBLPW | Air Brake - Low pressure warning device missing/inoperative | Vehicle Maintenance | Yes |
| Sep 26, 2025 | 3963A1F | Fuel - Dripping leak. | Vehicle Maintenance | Yes |
| Jul 9, 2025 | 39341BNPBSPR | Brake - Inoperative or missing power unit spring brake | Vehicle Maintenance | — |