Hartz Truck Line Inc is an active interstate carrier based in Thief River Falls, MN.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 17 | 0 | 0 |
| Tractors | 5 | 12 | 0 |
| Trailers | 15 | 14 | 0 |
| Total Power Units | 17 | ||
Distinct vehicles · 24 mo
vs 17 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 92% | 95% | Worse than most peers |
| HOS Compliance | 85% | 96% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 83% | 95% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 9 | — | 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 | 51 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 13, 2026 | MN | TRUCK TRACTOR | 0 | 0 |
| Feb 13, 2026 | ND | TRUCK TRACTOR | 0 | 0 |
| Feb 5, 2026 | TX | TRUCK TRACTOR | 1 | 0 |
| Jan 2, 2026 | ND | TRUCK TRACTOR | 1 | 0 |
| Dec 30, 2025 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 2 | 2.36 | — |
| HOS Compliance | 3 | 0.10 | — |
| Vehicle Maintenance | 16 | 8.87 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 16 states. Top state ND accounts for 30% of activity. Activity outside home state (MN): 80%.
+11 other states with fewer inspections
| 14 |
| Hours-of-Service Compliance | 3 | 1 | 0 |
| Unsafe Driving | 2 | 1 | 0 |
| ND |
| TRUCK TRACTOR |
| 2 |
| 1 |
| Dec 15, 2025 | ND | TRUCK TRACTOR | 0 | 0 |
| Dec 12, 2025 | CO | TRUCK TRACTOR | 0 | 0 |
| Nov 11, 2025 | UT | TRUCK TRACTOR | 0 | 0 |
| Oct 27, 2025 | IA | TRUCK TRACTOR | 0 | 0 |
| Oct 26, 2025 | SD | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 5, 2026 | 3939H | Inoperable head lamps | Vehicle Maintenance | — |
| Jan 2, 2026 | 3922SLLCP | State/Local Laws - Operate a CMV while using a cellular phone | Unsafe Driving | — |
| Dec 30, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Dec 30, 2025 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Oct 21, 2025 | 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 | — |
| Oct 13, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Oct 13, 2025 | 39347D2BLTBD | Drum Brake - Inadequate lining/pad thickness | Vehicle Maintenance | — |
| Oct 13, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Aug 21, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Aug 21, 2025 | 3939ALIL | Lighting - Identification lamp(s) inoperative | Vehicle Maintenance | — |