License Plate CA ZP15819 (California) — United Drivers Alliance
USDOT 854566 · 2021 Peterbilt 579
Recorded vehicle, plate and carrier history
These are dated observations in the records available to us. They do not establish ownership, a sale, a transfer date, or continuous use between observations. The latest observation may not describe today’s vehicle or carrier.
| Observed dates | VIN | Plate | Reported carrier |
|---|---|---|---|
| 2026-08-24 | 1XPBD49X0MD748815 | CA ZP15819 | UNITED DRIVERS ALLIANCE · USDOT 854566 |
Evidence: FMCSA inspection observations and retained snapshots of our vehicle records. Coverage is incomplete; an unreported change cannot be dated from these records.
Most recently recorded carrier for this plate
United Drivers Alliance Active
- USDOT
- 854566
- MC
- 379584
- Status
- Active
- Type
- Motor Carrier
- Based in
- Rialto, CA
- Power units
- 10
- Drivers
- 10
- Inspections (24 mo)
- 55
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 19.1%
Carrier recorded at the latest inspection in the available records (2026-08-24). This does not establish current ownership or confirm that the carrier still operates this vehicle.
View full carrier profile →Authority, insurance & bonds, safety scores, crash history, inspections and the full fleet list.
What this means
License plate CA-ZP15819 appears in FMCSA inspection records 11 times. Recorded on one vehicle: VIN 1XPBD49X0MD748815 (2021 Peterbilt 579). Most recent operating carrier: United Drivers Alliance (USDOT 854566). Vehicle make on file: Peterbilt (TRUCK TRACTOR). 5 out-of-service results across all inspections.
About this plate
Commercial license plate CA-ZP15819 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2025-02-19 to 2026-08-24. The latest inspection was in Arizona, a Level II — walk-around inspection of the driver and the vehicle. That is outside the plate's issuing jurisdiction (California).
Vehicle on this plate
This plate is associated with a single vehicle, a 2021 Peterbilt 579 — VIN 1XPBD49X0MD748815 (truck tractor).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 11 inspections on FMCSA record. The records show 5 out-of-service violations across 11 inspections. OOS breakdown: 5 vehicle. The leading violation category is Vehicle Maintenance (16), then Fatigued Driving (HOS) (4). Vehicle Maintenance covers brakes, lights, tires, load securement and other mechanical condition items.
Operators
Operated by United Drivers Alliance (USDOT 854566) in every inspection on record.
Vehicle detail (inspections per unit)
FMCSA BASIC safety category breakdown
| BASIC Category | Violations | Status |
|---|---|---|
| Vehicle Maintenance | 16 | ⚠ High |
| Fatigued Driving (HOS) | 4 | ! Moderate |
| Unsafe Driving | 0 | ✓ Clean |
| Driver Fitness | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |