Diamondback Trucking Co is an active interstate carrier based in Caledonia, WI.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 0 | 0 |
| Tractors | 3 | 0 | 0 |
| Trailers | 3 | 0 | 0 |
| Total Power Units | 3 | ||
Distinct vehicles · 24 mo
vs 3 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 98% | 98% | Worse than most peers |
| HOS Compliance | 99% | 99% | Worse than most peers |
| Driver Fitness | 97% | 97% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 97% | 97% | Worse than most peers |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 11 | — | 6.67% |
| Vehicle | 0 | 21 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2024 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 112 | 40 | 22 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 28, 2026 | WI | TRUCK TRACTOR | 1 | 0 |
| Jan 14, 2026 | WI | TRUCK TRACTOR | 3 | 2 |
| Jan 12, 2026 | IL | TRUCK TRACTOR | 2 | 0 |
| Dec 4, 2025 | OH | TRUCK TRACTOR | 1 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 7.62 | — |
| HOS Compliance | 16 | 3.28 | — |
| Vehicle Maintenance | 20 | 15.78 | — |
| Driver Fitness | 2 | 0.96 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 18 states. Top state WI accounts for 18% of activity. Activity outside home state (WI): 82%.
+13 other states with fewer inspections
| Hours-of-Service Compliance | 23 | 9 | 9 |
| Unsafe Driving | 4 | 1 | 0 |
| Driver Fitness | 3 | 1 | 3 |
| Nov 11, 2025 | KY | TRUCK TRACTOR | 3 | 2 |
| Oct 16, 2025 | IL | TRUCK TRACTOR | 19 | 8 |
| Oct 15, 2025 | AR | TRUCK TRACTOR | 2 | 1 |
| Sep 24, 2025 | IL | TRUCK TRACTOR | 1 | 1 |
| Aug 11, 2025 | IA | TRUCK TRACTOR | 7 | 1 |
| May 19, 2025 | MD | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 28, 2026 | 3939ALTSIR | Lighting - Turn signal -Any inoperative on a unit that is not the rearmost unit | Vehicle Maintenance | — |
| Jan 14, 2026 | 38323A2LCDLN | License (CDL) - Operate a CMV and does not possess a valid CDL | Driver Fitness | Yes |
| Jan 14, 2026 | 39141APC | Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency | Driver Fitness | Yes |
| Jan 14, 2026 | 3922SLLTCD | State/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g. safety official signal sign light lane marking other | Unsafe Driving | — |
| Jan 12, 2026 | 39381 | Horn inoperative | Vehicle Maintenance | — |
| Jan 12, 2026 | 39395F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Vehicle Maintenance | — |
| Dec 4, 2025 | 3958EHOSPD | HOS (Property) - No driver may make a false report in connection with a duty status. Explain | Hours-of-Service Compliance | — |
| Nov 11, 2025 | 393207FSASMD | Suspension - Air spring/bag is missing or is detached at the top or bottom. | Vehicle Maintenance | Yes |
| Nov 11, 2025 | 39347ABCLMBD | Drum Brake - Cracked/loose/missing lining/pad | Vehicle Maintenance | — |
| Nov 11, 2025 | 3939ALSLIWR | Lighting - Stop lamps - Both inoperative when required to be on | Vehicle Maintenance | Yes |