J K Hackl Transportation Services Inc is an active interstate carrier based in Sun Prairie, WI.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 75 | 0 | 0 |
| Tractors | 75 | 0 | 0 |
| Trailers | 117 | 0 | 0 |
| Total Power Units | 75 | ||
Distinct vehicles · 24 mo
vs 75 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 86% | 94% | Worse than most peers |
| HOS Compliance | 71% | 97% | Around peer average |
| Driver Fitness | 62% | 96% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 52% | 88% | Around peer average |
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 | 0 | — | 6.67% |
| Vehicle | 0 | 11 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 0 | 2 | 2 |
| Oct 1, 2025 | 0 | 0 | 1 | 1 |
| Jul 1, 2025 | 0 | 1 | 2 | 2 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 43 | 11 | 17 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 9, 2026 | NE | TRUCK TRACTOR | 0 | 0 |
| Feb 25, 2026 | MS | TRUCK TRACTOR | 0 | 0 |
| Feb 12, 2026 | OH | TRUCK TRACTOR | 0 | 0 |
| Feb 9, 2026 | AL | TRUCK TRACTOR | 3 | 0 |
| Feb 3, 2026 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 19 | 1.67 | — |
| HOS Compliance | 6 | 0.04 | — |
| Vehicle Maintenance | 28 | 2.83 | — |
| Driver Fitness | 1 | 0.01 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 36 states. Top state CA accounts for 16% of activity. Activity outside home state (WI): 100%.
+31 other states with fewer inspections
| Unsafe Driving | 22 | 2 | 0 |
| Hours-of-Service Compliance | 7 | 0 | 0 |
| Driver Fitness | 1 | 0 | 1 |
| IL |
| TRUCK TRACTOR |
| 1 |
| 0 |
| Jan 30, 2026 | NM | TRUCK TRACTOR | 0 | 0 |
| Jan 30, 2026 | TN | TRUCK TRACTOR | 0 | 0 |
| Jan 20, 2026 | SC | TRUCK TRACTOR | 1 | 0 |
| Jan 12, 2026 | WA | TRUCK TRACTOR | 0 | 0 |
| Dec 31, 2025 | OH | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 9, 2026 | 3939ALCL | Lighting - Clearance lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 9, 2026 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 9, 2026 | 3939ALSLI | Lighting - Stop lamps - Any inoperative. | Vehicle Maintenance | — |
| Feb 3, 2026 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Jan 20, 2026 | 3922SLLLR | State/Local Laws - Lane restriction violation | Unsafe Driving | — |
| Dec 9, 2025 | 39222AD | Driver - Failed to activate hazard warning signal flashers | Unsafe Driving | — |
| Nov 24, 2025 | 3922SLLLR | State/Local Laws - Lane restriction violation | Unsafe Driving | — |
| Nov 6, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Sep 18, 2025 | 3922SLLLR | State/Local Laws - Lane restriction violation | Unsafe Driving | — |
| Sep 18, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |