License Plate CA 43529K4 (California) — Columbia Stone Products Inc
USDOT 2771750 · Isuzu
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 |
|---|---|---|---|
| 2026-10-01 | 54DC4W1D6RS215157 | CA 43529K4 | COLUMBIA STONE PRODUCTS INC · USDOT 2771750 |
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
Columbia Stone Products Inc Active
- USDOT
- 2771750
- MC
- —
- Status
- Active
- Type
- Motor Carrier
- Based in
- San Marcos, CA
- Power units
- 9
- Drivers
- 9
- Inspections (24 mo)
- 32
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 3.3%
Carrier recorded at the latest inspection in the available records (2026-10-01). 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-43529K4 appears in FMCSA inspection records 2 times. Recorded on one vehicle: VIN 54DC4W1D6RS215157 (Isuzu). Most recent operating carrier: Columbia Stone Products Inc (USDOT 2771750). Vehicle make on file: Isuzu (ISU) (STRAIGHT TRUCK). 1 out-of-service result across all inspections.
About this plate
Commercial license plate CA-43529K4 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2026-07-16 to 2026-10-01. The latest inspection was in California, a Level I — full inspection of the driver and the vehicle.
Vehicle on this plate
This plate is associated with a single vehicle, a Isuzu — VIN 54DC4W1D6RS215157 (straight truck).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 2 inspections on FMCSA record. The records show 1 out-of-service violation across 2 inspections. OOS breakdown: 1 driver. The leading violation category is Vehicle Maintenance (1), then Driver Fitness (1). Vehicle Maintenance covers brakes, lights, tires, load securement and other mechanical condition items.
Operators
Operated by Columbia Stone Products Inc (USDOT 2771750) in every inspection on record.
Vehicle detail (inspections per unit)
FMCSA BASIC safety category breakdown
| BASIC Category | Violations | Status |
|---|---|---|
| Vehicle Maintenance | 1 | — Minor |
| Driver Fitness | 1 | — Minor |
| Unsafe Driving | 0 | ✓ Clean |
| Fatigued Driving (HOS) | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |