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Truck Graph
0/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
Diamond Fabrication And Welding
DOT 4526025 · Chester, CA
Report generated: June 4, 2026 at 12:36 PM
✗Authorized for hire?
✗Active insurance?
✓Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

Diamond Fabrication And Welding (DOT 4526025) is a California-based intrastate carrier headquartered in Chester, CA. As of June 4, 2026 at 12:36 PM, operating authority is active but without for-hire authority. TruckGraph has detected 1 risk signal on this carrier, including: no active insurance filing on record. TruckGraph rates this carrier "Do Not Tender" based on FMCSA compliance data, inspection history, insurance status, and network connection analysis. Last synced: June 4, 2026 at 12:36 PM.

FMCSA Public Record
William Ng
Operating as: Diamond Fabrication And Welding
DOT Number4526025
MC Number—
Street676 MAIN ST
City / StateChester, CA 96020
Phone5305194729
Operation typeIntrastate
HazmatNot authorized
Authority age4 mo
MCS-150 filed01/26/2026
Company officerWilliam Ng
Power units1
Total drivers1
Authority Status
Common (for-hire)—
Contract (for-hire)—
Broker—
TruckGraph Intelligence
Risk Signals
●No active insurance filing on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
Network Intelligence Map
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Power Units
1
Fleet
Drivers
1
Total
Inspections
0
On record
Crashes
0
On record
OOS Rate
—
↓ Avg 22.26%
Authority Age
4 mo
Since 2026
Inspection History
0 total · No inspections

No inspection records on file.

Crash History
0 total on record

No crash records on file.

Insurance Status
⚠ No active insurance filing on record
Verify insurance directly with carrier before tendering any load.
Location
676 MAIN ST, Chester, CA, 96020 · Open in Maps →
676 MAIN ST, CHESTER, CA, 96020Open in Maps →
Authority Timeline
Authority GrantedJan 2026
FMCSA issued operating authority
Active USDOT — No for-hire authorityCurrent
USDOT record is active but no for-hire operating authority is currently granted

Source: FMCSA compliance records, inspection data, crash records, insurance filings, and TruckGraph analysis. View methodology

Important Legal Notice

Data sourced from FMCSA public records and TruckGraph independent analysis. This is not legal advice, not a guarantee of carrier safety, and not a compliance certification. Verify through official FMCSA sources before tendering. Last synced: .

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Frequently Asked Questions

Is William Ng authorized to operate?

William Ng's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is William Ng's safety record?

William Ng does not have a substantial inspection history on record. This may indicate limited interstate operations.

How many trucks does William Ng operate?

William Ng operates 1 power units with approximately 1 drivers.

Is William Ng insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has William Ng had any risk indicators?

William Ng has a risk score of 0/100 (Monitor) with 1 active risk signal. Review the risk section above and verify independently before tendering.

What is the DOT number for William Ng?

William Ng's DOT number is 4526025. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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For journalists and researchers

Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Diamond Fabrication And Welding Safety Record, DOT 4526025. Retrieved from https://truckgraph.com/carriers/4526025
MLA
"Diamond Fabrication And Welding Safety Record, DOT 4526025." Truck Graph, Jun 4, 2026, https://truckgraph.com/carriers/4526025
Chicago
"Diamond Fabrication And Welding Safety Record, DOT 4526025." Truck Graph. Last modified June 4, 2026. https://truckgraph.com/carriers/4526025