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Commercial Plate Lookup

License Plate CA 4AX1803 (California) — Sigma Transport Inc

USDOT 3166961 · UNK

Clean record

Current operating carrier of this plate

Sigma Transport Inc Active

USDOT
3166961
MC
—
Status
Active
Type
Motor Carrier
Based in
Tracy, CA
Power units
1
Drivers
1
Inspections (24 mo)
4
Crashes (24 mo)
0
Vehicle OOS rate
0%
View full carrier profile →Authority, insurance & bonds, safety scores, crash history, inspections and the full fleet list.

This plate has also been operated by 1 other carrier (listed below).

Plate
CA-4AX1803
Vehicles
1
Inspections
5
OOS results
0
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What this means

License plate CA-4AX1803 appears in FMCSA inspection records 5 times. Recorded on one vehicle: VIN 1G9CD2012YN029106 (UNK). Operated by 2 different carriers (DOT numbers) over its inspection history. Most recent operating carrier: Sigma Transport Inc (USDOT 3166961). Vehicle make on file: UNK (SEMI-TRAILER). Zero out-of-service results — clean inspection record under this plate.

About this plate

Commercial license plate CA-4AX1803 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2025-09-02 to 2026-08-26. 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 UNK — VIN 1G9CD2012YN029106 (semi-trailer).

Combined inspection & out-of-service record

Across all vehicles on this plate there are 5 inspections on FMCSA record. No out-of-service orders were issued — a clean combined record under this plate.

Operators

2 carriers have operated vehicles under this plate (most recent first): Sigma Transport Inc (USDOT 3166961) from 2026-08-25 to 2026-08-26; Nmd Transport Inc (USDOT 3883903) from 2025-09-02 to 2026-03-23.

Vehicle detail (inspections per unit)
VIN 1G9CD2012YN029106 UNK · SEMI-TRAILER
2026-08-25 → 2026-08-26
Carrier: SIGMA TRANSPORT INC (DOT 3166961) · 2 inspections · 0 OOS · 0 violations
Last inspected in California · Level III — driver and paperwork only
VIN 1G9CD2012YN029106 UNK · SEMI-TRAILER
2025-09-02 → 2026-03-23
Carrier: NMD TRANSPORT INC (DOT 3883903) · 3 inspections · 0 OOS · 0 violations
Last inspected in California · Level II — walk-around inspection of the driver and the vehicle

Related

Frequently Asked Questions

How many vehicles are linked to plate CA-4AX1803?
One: VIN 1G9CD2012YN029106 (UNK).
Why does plate CA-4AX1803 appear under different DOT numbers?
Inspections under this plate were recorded against 2 USDOT numbers: Sigma Transport Inc (USDOT 3166961), Nmd Transport Inc (USDOT 3883903).

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