Diamond Materials LLC
USDOT 45597MC-76472USDOT activeAuthority active· Wilmington, DE
Diamond Materials LLC (USDOT 45597) runs 139 power units and 117 drivers based in Wilmington, DE, with active operating authority as a motor carrier of property under MC-76472. The earliest grant on file is from May 1982, 44 years, 5 months ago. $1,000,000 of liability coverage is on file with Arch Insurance Company.
Operating authority
| Docket | Authority | Status | Insurance required | On file |
|---|---|---|---|---|
| MC-76472 | Motor carrier of property | Active | $1,000,000 liability | $1,000,000 liability |
Earliest grant on file: May 26, 1982 (44 years, 5 months ago).
Insurance and bonds on file
| Type | Insurer | Coverage | Effective | Cancellation |
|---|---|---|---|---|
| Liability (BIPD) · form 91X | Arch Insurance Company | $1,000,000 | Jan 1, 2012 | — |
Confirm coverage with the insurer before tendering a load.
Authority history
| Date | Docket | Action |
|---|---|---|
| Jun 20, 2023 | MC-76472 | Discontinued revocation · common carrier |
| May 12, 2023 | MC-76472 | Involuntary revocation · common carrier |
| Feb 15, 2012 | MC-76472 | Reinstated · motor carrier of property |
| Feb 15, 2012 | MC-76472 | Reinstated · motor carrier of property |
| Feb 12, 2007 | MC-76472 | Revoked · motor carrier of property |
| Feb 21, 1995 | MC-76472 | Discontinued revocation · common carrier |
| Jan 13, 1995 | MC-76472 | Involuntary revocation · common carrier |
| May 26, 1982 | MC-76472 | Granted · motor carrier of property |
Revocations
| Docket | Authority | Order served | Effective |
|---|---|---|---|
| MC-76472 | Common | Jan 8, 2007 | Feb 12, 2007 · involuntary revocation |
Registration
| USDOT number | 45597 |
|---|---|
| USDOT status | Active |
| Dockets | MC-76472 |
| Legal name | Diamond Materials LLC |
| Operation | Interstate |
| Classification | Private property, Authorized for hire |
| Business type | Corporation |
| Location | Wilmington, Delaware 19801 |
| USDOT added | Jun 1, 1974 |
| Last MCS-150 update | Jul 2, 2025 |
| Safety rating | Conditional · May 26, 1988 |
| Hazardous materials | Yes |
Fleet
| Power units | 139 |
|---|---|
| Trucks | 136 |
| Drivers | 117 · 117 with a CDL |
| Annual miles | 676,737 · 2025 |
Cargo carried
Logs, poles, beams, lumber, Building materials, Machinery, large objects, Liquids/gases, Garbage/refuse, Chemicals, Commodities dry bulk, Construction
Check it yourself
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Data as of Nov 12, 2026. Sources
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