DIAMOND MATERIALS LLC
USDOT 45597MC-Docket MC076472WILMINGTON, DE
Review before tenderingHazmat-authorized139 power units
DIAMOND MATERIALS LLC (USDOT 45597) in WILMINGTON, DE — has findings to review before tendering. FMCSA authority, fleet size, BASIC safety measures, crash and inspection history.
- Has active operating authority that's tenderable today (common or contract).
- No pending authority revocation.
- Not under an uncleared federal out-of-service or safety action.
- BIPD on file: $1,000,000.
- No cargo insurance on file. Required for many shipper contracts.
- No history of insurance lapses.
- Safety rating is Conditional — FMCSA found enough issues to flag but not enough to downgrade to Unsatisfactory.
- No BASIC alerts in any of the five public SMS categories.
- Driver and vehicle out-of-service rates are at or below the national roadside average.
- 7 preventable crash(es) in the last 24 months; recordable crash rate not available.
- No fatal crashes in the last 24 months.
- No link to a prior revoked authority.
- Authority involuntarily revoked 2 times, most recent 2023-05-12 — recurring instability (typically insurance-lapse / reinstate cycles).
- FMCSA compliance review on file dated 1988-03-02 (S).
- Crash Indicator and Hazmat Compliance BASICs are statutorily withheld from public SMS under the FAST Act — their absence is not a clean record; use the crash-risk signals above instead. The Hazmat Compliance BASIC is also withheld for this hazmat carrier.
Built from FMCSA's public Safety Management System data — guidance, not legal advice. Verify directly with the carrier and your cargo policy before tendering.
Authority
- Common authority
- Active
- Contract authority
- Not applicable
Safety & BASIC scorecard
BASIC safety measures
Unsafe driving
No alert
measure 0.64
Hours of service
No alert
measure 0
Driver fitness
No alert
measure 0.34
Controlled substance
No alert
measure 0
Vehicle maintenance
No alert
measure 1.53
Under the FAST Act, FMCSA publishes an absolute per-category measure (not a 0–100 percentile) for these five BASICs — the alert flag, not the raw number, is the risk signal. The Crash Indicator and Hazmat Compliance BASICs are statutorily withheld from public view.
Last 24 months
0
Fatalities
6
Injuries
7
Crashes
115
Inspections
12
OOS inspections
14
OOS violations
Insurance
- BIPD on file
- $1,000,000
- Cargo insurance
- No
- Bond on file
- No
Fleet
- Power units
- 139
- Total drivers
- 117
- Years in business
- 52
- Hazmat authority
- Yes
Crash risk
- Preventable crashes (24 mo)
- 7 of 7 total crash(es)
- Recordable crash rate
- Not available
- Driver OOS rate
- 2.5%
- Vehicle OOS rate
- 10.8%
The official Crash Indicator BASIC is withheld from public SMS under the FAST Act — these derived signals stand in for it; their absence is not a clean record.
Compliance & history
- Reincarnation / chameleon
- No prior revoked authority
- Involuntary revocations
- 2 times last 2023-05-12
- Physical address
- No address flags
- Federal OOS / safety action
- None on file
- MCS-150 self-report
- 2025-07-02
- Insurance lapse history
- No lapses on record
- Last compliance review
- 1988-03-02 · S
Inspection history (all-time)
168
Inspections
17
OOS inspections
94
Violations
20
OOS violations
0
Post-accident
Record spans 2023-06-02 → 2026-05-26.
Crash history (last 24 months)
2025-08-27
MD
Tow-away
2025-06-09
DE
2 injuredTow-away
2025-04-24
NJ
1 injuredTow-away
2025-02-18
NJ
1 injuredTow-away
2025-02-18
NJ
Tow-away
2024-11-12
DE
1 injuredTow-away
2024-11-12
PA
1 injuredTow-away
Violation pattern (all-time, by area)
| Area (49 CFR part) | Violations | Out of service | Most recent |
|---|---|---|---|
Unsafe driving 392
|
37 | 0 | 2026-04-01 |
Vehicle parts & maintenance 393
|
33 | 13 | 2026-05-04 |
Vehicle inspection & repair 396
|
5 | 2 | 2026-03-09 |
Driver qualifications 391
|
3 | 1 | 2025-11-28 |
CDL standards 383
|
2 | 2 | 2026-03-13 |
Hazardous materials (HMR) 177
|
1 | 1 | 2024-02-23 |
General safety regulations 390
|
1 | 0 | 2025-10-08 |
Recent violations (last 24 months, worst first)
| Date | Category | Violation | OOS |
|---|---|---|---|
| 2026-04-01 | Unsafe Driving | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | — |
| 2026-03-26 | Vehicle Maintenance | Drum Brake - Loose chamber/spider/camshaft support bracket | — |
| 2026-03-13 | Driver Fitness | Driving a CMV while CDL is suspended for safety-related or unknown reason and outside the state of driver's license issu | OOS |
| 2026-03-09 | Vehicle Maintenance | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | OOS |
| 2026-03-09 | Vehicle Maintenance | Brake - Audible air leak from a brake chamber | — |
| 2026-03-09 | Vehicle Maintenance | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | — |
| 2026-03-09 | Vehicle Maintenance | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate | — |
| 2026-03-09 | Vehicle Maintenance | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | OOS |
| 2026-01-14 | Vehicle Maintenance | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | OOS |
| 2025-12-24 | Unsafe Driving | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | — |
| 2025-12-22 | Vehicle Maintenance | Emergency Equipment - Stopped vehicle warning devices missing or improper | — |
| 2025-11-28 | Driver Fitness | Learner's Permit (CLP) - Is not accompanied by the holder of a valid CDL that is fully authorized to operate the CMV. | OOS |
| 2025-11-28 | Driver Fitness | Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on fi | OOS |
| 2025-11-26 | Vehicle Maintenance | Emergency Equipment - Stopped vehicle warning devices missing or improper | — |
| 2025-11-25 | Unsafe Driving | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign l | — |
| 2025-10-08 | Vehicle Maintenance | Battery - Not protected | — |
| 2025-09-25 | Vehicle Maintenance | Emergency Equipment - Stopped vehicle warning devices missing or improper | — |
| 2025-07-21 | Vehicle Maintenance | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | OOS |
| 2025-06-16 | Vehicle Maintenance | Tires - All others weight carried exceeds tire load limit | OOS |
| 2025-04-11 | Unsafe Driving | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | — |
| 2025-04-01 | Vehicle Maintenance | Lighting - License plate lamp missing | — |
| 2025-03-31 | Unsafe Driving | State/Local Laws - Truck routing restriction | — |
| 2025-03-27 | Vehicle Maintenance | Brake - Inoperative or missing parking brake on power unit | OOS |
| 2025-03-27 | Vehicle Maintenance | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | — |
| 2025-03-27 | Vehicle Maintenance | Driver - Failed to inspect /use emergency equipment | — |
| 2025-03-27 | Driver Fitness | Medical (Certificate) - Operating a commercial motor vehicle without showing proof of a valid medical certification upo | — |
| 2025-03-20 | Vehicle Maintenance | Lubrication - Oil or grease leak | — |
| 2024-11-25 | Vehicle Maintenance | Emergency Equipment - Fire Extinguishers - unsecured | — |
| 2024-11-25 | Driver Fitness | License (CDL) - CDL or CLP holder possesses a valid medical certificate but is not on file with the issuing state driver | — |
| 2024-11-25 | Vehicle Maintenance | Wipers - Inoperative / missing / damaged wipers | — |
| 2024-10-18 | Vehicle Maintenance | Tires - Has a cut to the extent that the ply or belt material is exposed. | — |
| 2024-10-18 | Vehicle Maintenance | Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. | — |
| 2024-10-18 | Vehicle Maintenance | Emergency Equipment - Stopped vehicle warning devices missing or improper | — |
| 2024-10-10 | Vehicle Maintenance | Air Brake - Audible air leak at a proper connection | — |
| 2024-10-10 | Vehicle Maintenance | Air Brake - Hose/tubing damaged or not secured | — |
| 2024-10-08 | Unsafe Driving | State/Local Laws - Speeding 15 or more miles per hour over the speed limit | — |
| 2024-09-19 | Unsafe Driving | State/Local Laws - Speeding 11-14 miles per hour over the speed limit | — |
| 2024-09-19 | Unsafe Driving | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | — |
| 2024-09-18 | Unsafe Driving | Failure to obey traffic control device | — |
| 2024-08-14 | Driver Fitness | Operating a CMV without a CDL | OOS |
| 2024-08-05 | Vehicle Maintenance | No/improper breakaway or emergency braking | OOS |
| 2024-08-05 | Vehicle Maintenance | Inoperable Required Lamp | OOS |
| 2024-07-31 | Unsafe Driving | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign l | — |
| 2024-07-08 | Vehicle Maintenance | Brake - Hole in Spring Brake Housing | OOS |
| 2024-06-28 | Vehicle Maintenance | Tires - All others weight carried exceeds tire load limit | OOS |
Recent inspections (with violations, newest first)
Showing the 25 most-recent inspections that had violations. Clean inspections aren't listed here — they're counted in the all-time inspection totals above.
2026-05-04 2 viols· 2 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 45D-BHTBS | OOS | — |
| Vehicle parts & maintenance 393 | 75A3-TAOL | OOS | — |
2026-04-01 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLS2 | — | — |
2026-03-26 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 48A-BLMACBD | — | — |
2026-03-13 1 viol· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| CDL standards 383 | 51A-SOUT | OOS | — |
2026-03-09 2 viols· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 75A3-TAOL | OOS | — |
| Vehicle inspection & repair 396 | 3A1-BALAC | — | — |
2026-03-09 5 viols· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 53B-B | — | — |
| Vehicle inspection & repair 396 | 3A1-BOS | OOS | — |
| Vehicle parts & maintenance 393 | 47E | — | — |
| Vehicle parts & maintenance 393 | 47E | — | — |
| Vehicle parts & maintenance 393 | 47E | — | — |
2026-02-18 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2WG | — | — |
2026-01-14 1 viol· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 75A3-TAOL | OOS | — |
2025-12-24 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLS3 | — | — |
2025-12-22 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 95F | — | — |
2025-11-28 4 viols· 2 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLIRP | — | — |
| Unsafe driving 392 | 2-SLLTR | — | — |
| CDL standards 383 | 25A1 | OOS | — |
| Driver qualifications 391 | 41APC | OOS | — |
2025-11-26 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 95F | — | — |
2025-11-25 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLTCD | — | — |
2025-11-03 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLEWA3 | — | — |
2025-10-17 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLSR | — | — |
2025-10-08 2 viols
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| General safety regulations 390 | 21TB2-DOT | — | — |
| Vehicle parts & maintenance 393 | 30-B | — | — |
2025-09-25 2 viols
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLTL | — | — |
| Vehicle parts & maintenance 393 | 95F | — | — |
2025-08-18 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLEWA1 | — | — |
2025-07-22 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLEWA1 | — | — |
2025-07-21 1 viol· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Vehicle parts & maintenance 393 | 75A3-TAOL | OOS | — |
2025-06-21 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLL | — | — |
2025-06-16 2 viols· 1 OOS
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLEWA2 | — | — |
| Vehicle parts & maintenance 393 | 75G-TAOW | OOS | — |
2025-05-01 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLEWA1 | — | — |
2025-04-11 1 viol
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLS3 | — | — |
2025-04-01 2 viols
| Area (part) | Section | OOS | Citation |
|---|---|---|---|
| Unsafe driving 392 | 2-SLLEWA2 | — | — |
| Vehicle parts & maintenance 393 | 11A1-LLPL | — | — |
Verify on FMCSA
FMCSA is the system of record. One click through to the official source.