License Plate CA 4SB1943 (California) — Sierra Mountain Construction Inc
USDOT 1475508 · 2018 ST Dragon ESP
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 |
|---|---|---|---|
| 2026-08-13 | 591SD3822JR156646 | CA 4SB1943 | SIERRA MOUNTAIN CONSTRUCTION INC · USDOT 1475508 |
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
Sierra Mountain Construction Inc Active
- USDOT
- 1475508
- MC
- 556972
- Status
- Active
- Type
- Motor Carrier
- Based in
- Sonora, CA
- Power units
- 16
- Drivers
- 16
- Inspections (24 mo)
- 4
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 33.3%
Carrier recorded at the latest inspection in the available records (2026-08-13). 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-4SB1943 appears in FMCSA inspection records 1 time. Recorded on one vehicle: VIN 591SD3822JR156646 (2018 ST Dragon ESP). Most recent operating carrier: Sierra Mountain Construction Inc (USDOT 1475508). Vehicle make on file: ST (SEMI-TRAILER). No out-of-service violations are recorded under this plate in the available inspection records. Other violations may still be present.
About this plate
Commercial license plate CA-4SB1943 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. The most recent inspection activity under this plate was 2026-08-13. The latest inspection was in California, a Level II — walk-around inspection of the driver and the vehicle.
Vehicle on this plate
This plate is associated with a single vehicle, a 2018 ST Dragon ESP — VIN 591SD3822JR156646 (semi-trailer).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 1 inspection on FMCSA record. No out-of-service violations appear in the available records under this plate. This does not mean that every inspection was free of other violations.
Operators
Operated by Sierra Mountain Construction Inc (USDOT 1475508) in every inspection on record.