HaulerCheck · https://haulercheck.com/carrier/3754771-diamondback-trucking-co/ · Checked 2026-10-19 23:57 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
DIAMONDBACK TRUCKING CO
Do not book until these are resolved · 3 signals
How risk signals workAt least one fact in the FMCSA record should stop a booking until it is cleared up. Confirm the current record on Motus first; it is not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- Operating authority is inactive (last known)Without active authority the company may not haul or broker interstate freight for hire.
- Conditional FMCSA safety ratingRated Jul 5, 2026. FMCSA found safety controls that needed correcting.
- Vehicle out-of-service rate well above the state average52.9% vs Wisconsin average 19.9%.
No cargo cover filed with FMCSA
Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.
What to verify next
- Confirm authority and insurance on the official Motus record ↗: our copy is the last known status from May 14, 2026. Safety record: SAFER ↗.
- Call back on the number on file, (951) 923-6104, not a number from an email or load board.
- Check that the MC number you were given is MC1334324.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
No insurance filings were found in the public FMCSA data for this carrier.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
9 of 17 · Wisconsin avg 19.9%
8 of 25 · Wisconsin avg 2.8%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Jan 28, 2026 | WI | 2 | 4 | No |
| Jan 14, 2026 | WI | 3 | 4 | Yes |
| Jan 12, 2026 | IL | 2 | 7 | No |
| Dec 4, 2025 | OH | 2 | 2 | No |
| Nov 11, 2025 | KY | 1 | 5 | Yes |
| Oct 16, 2025 | IL | 1 | 23 | Yes |
| Oct 15, 2025 | AR | 2 | 2 | Yes |
| Sep 24, 2025 | IL | 3 | 1 | Yes |
| Aug 11, 2025 | IA | 1 | 15 | Yes |
| May 19, 2025 | MD | 2 | 0 | No |
How these rates are calculated
Period: Oct 19, 2024 – Oct 19, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Wisconsin average covers 42,218 vehicle and 76,980 driver inspections of all Wisconsin-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
109 violations counted in FMCSA's Safety Measurement System (SMS), 30 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 165 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Wisconsin share |
|---|---|---|---|---|
| Vehicle Maintenance | 90 | 20 | 82.6% | 63.4% |
| Hours-of-Service Compliance | 12 | 7 | 11.0% | 11.5% |
| Unsafe Driving | 4 | 0 | 3.7% | 21.2% |
| Driver Fitness | 3 | 3 | 2.8% | 3.1% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Lighting - Stop lamps - Any inoperative. Lighting · Vehicle Maintenance · code 3939ALSLI | 5 | 0 |
| Lighting - Front - Turn signal - inoperative Lighting · Vehicle Maintenance · code 3939ALFTSI | 4 | 0 |
| ELD - No record of duty status (ELD Required) Incomplete/Wrong Log · Hours-of-Service Compliance · code 3958AELD | 3 | 3 |
| HOS (Form) - Paper Log/Logging Programs Form and Manner Other Log/Form & Manner · Hours-of-Service Compliance · code 3958A | 3 | 0 |
| Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt Brakes Out of Adjustment · Vehicle Maintenance · code 39347E | 3 | 0 |
| Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit Lighting · Vehicle Maintenance · code 3939ALTSIR | 3 | 0 |
| Tires - Less than 2/32 inch tread depth Tires · Vehicle Maintenance · code 39375CTAOTDLT232 | 3 | 0 |
| Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination Brake Out Of Service · Vehicle Maintenance · code 3963A1BOS | 2 | 2 |
| Lighting - Turn signal - Any inoperative on the rearmost vehicle. Lighting · Vehicle Maintenance · code 3939ALTSI | 2 | 2 |
| Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and more than 1100 lbs Tiedown · Vehicle Maintenance · code 393110B2IC | 2 | 2 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the Wisconsin column is the mix across all Wisconsin-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 19, 2024 – Oct 19, 2026
Crash details
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Dec 10, 2024 | Lebanon, MO | 0 | 0 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 3754771 |
|---|---|
| MC / docket | MC1334324 |
| Legal name | DIAMONDBACK TRUCKING CO |
| Operation | Interstate |
| Business type | — |
| Power units | 5 |
| Drivers | 2 |
| Annual mileage | 100,000 (2024) |
| Hazmat | No |
| Safety rating | Conditional (Jul 5, 2026) |
| USDOT number added | Oct 29, 2021 · 4 years ago |
| Last MCS-150 update | Sep 3, 2025 |
Cargo carried
General FreightMetal: Sheets, Coils, RollsLogs, Poles, Beams, Lumber
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about DIAMONDBACK TRUCKING CO
What does DIAMONDBACK TRUCKING CO's operating authority allow?
FMCSA records show no active operating authority for DIAMONDBACK TRUCKING CO (MC1334324), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about DIAMONDBACK TRUCKING CO is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. No insurance filings were found in the public data.
What should I verify before booking DIAMONDBACK TRUCKING CO?
Confirm the authority and insurance on the Motus record for USDOT 3754771. Call the company back on the phone number on file, (951) 923-6104, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1334324, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Caledonia, WI →
Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-19 23:57 UTC.