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Truck Graph
0/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
William C Diamond Plumbing And Heating
DOT 4030696 · MC MC1522751 · East Hanover, NJ
Report generated: June 6, 2026 at 12:31 PM
✗Authorized for hire?
✗Active insurance?
✓Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

William C Diamond Plumbing And Heating (DOT 4030696, MC MC1522751) is a New Jersey-based intrastate carrier headquartered in East Hanover, NJ. As of June 6, 2026 at 12:31 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 6, 2026 at 12:31 PM.

FMCSA Public Record
William C Diamond
Operating as: William C Diamond Plumbing And Heating
DOT Number4030696
MC NumberMC1522751
Street34 DEFOREST AVE STE 9
City / StateEast Hanover, NJ 07936
Phone9737033666
Operation typeIntrastate
HazmatNot authorized
Authority age3 yr 3 mo
MCS-150 filed01/15/2026
Company officerWilliam C Diamond
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
3 yr 3 mo
Since 2023
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
34 DEFOREST AVE STE 9, East Hanover, NJ, 07936 · Open in Maps →
34 DEFOREST AVE STE 9, EAST HANOVER, NJ, 07936Open in Maps →
Authority Timeline
Authority GrantedFeb 2023
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 C Diamond authorized to operate?

William C Diamond'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 C Diamond's safety record?

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

How many trucks does William C Diamond operate?

William C Diamond operates 1 power units with approximately 1 drivers.

Is William C Diamond insured?

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

Has William C Diamond had any risk indicators?

William C Diamond 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 C Diamond?

William C Diamond's DOT number is 4030696 and MC number is MC1522751. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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

APA
Truck Graph. (2026). William C Diamond Plumbing And Heating Safety Record, DOT 4030696. Retrieved from https://truckgraph.com/carriers/4030696
MLA
"William C Diamond Plumbing And Heating Safety Record, DOT 4030696." Truck Graph, Jun 6, 2026, https://truckgraph.com/carriers/4030696
Chicago
"William C Diamond Plumbing And Heating Safety Record, DOT 4030696." Truck Graph. Last modified June 6, 2026. https://truckgraph.com/carriers/4030696