License Plate CA 4JL6533 (California) — Ralph Serpa & Sons Inc
USDOT 529020 · 2007 WMARK Certified Stainless Services, Inc dba West-Mark
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 |
|---|---|---|---|
| 2026-05-11 | 16WTE40217A136066 | CA 4JL6533 | RALPH SERPA & SONS INC · USDOT 529020 |
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
Ralph Serpa & Sons Inc Active
- USDOT
- 529020
- MC
- 1053874
- Status
- Active
- Type
- Motor Carrier
- Based in
- Turlock, CA
- Power units
- 13
- Drivers
- 21
- Inspections (24 mo)
- 1
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 0%
Carrier recorded at the latest inspection in the available records (2026-05-11). 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-4JL6533 appears in FMCSA inspection records 1 time. Recorded on one vehicle: VIN 16WTE40217A136066 (2007 WMARK Certified Stainless Services, Inc dba West-Mark). Most recent operating carrier: Ralph Serpa & Sons Inc (USDOT 529020). Vehicle make on file: WMARK (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-4JL6533 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. The most recent inspection activity under this plate was 2026-05-11. The latest inspection was in California, a Level III — driver and paperwork only.
Vehicle on this plate
This plate is associated with a single vehicle, a 2007 WMARK Certified Stainless Services, Inc dba West-Mark — VIN 16WTE40217A136066 (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 Ralph Serpa & Sons Inc (USDOT 529020) in every inspection on record.