Leonhardt Trucking Llc is an active interstate carrier based in Warrenville, IL.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 45 | 0 | 0 |
| Tractors | 1 | 44 | 0 |
| Total Power Units | 45 | ||
Distinct vehicles · 24 mo
vs 45 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 53% | 87% | Around peer average |
| HOS Compliance | 81% | 92% | Worse than most peers |
| Driver Fitness | 90% | 94% | Worse than most peers |
| Controlled Substances | 95% | 99% | Worse than most peers |
| Vehicle Maintenance | 75% | 89% | 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 | 4 | — | 6.67% |
| Vehicle | 0 | 4 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2024 | 0 | 2 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 31 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 19, 2026 | WY | TRUCK TRACTOR | 0 | 0 |
| Jan 22, 2026 | WY | TRUCK TRACTOR | 1 | 0 |
| Jan 13, 2026 | WY | TRUCK TRACTOR | 0 | 0 |
| Dec 24, 2025 | IN | TRUCK TRACTOR | 1 | 0 |
| Dec 15, 2025 |
| Category |
|---|
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 11 | 1.81 | — |
| HOS Compliance | 9 | 0.63 | — |
| Vehicle Maintenance | 15 | 6.28 | — |
| Driver Fitness | 3 | 0.54 | — |
| Controlled Substances | 1 | 0.12 | — |
| 4.44% |
Where they run
Inspected in 18 states. Top state CA accounts for 19% of activity. Activity outside home state (IL): 100%.
+13 other states with fewer inspections
| 9 |
| 7 |
| Hours-of-Service Compliance | 12 | 4 | 4 |
| Unsafe Driving | 11 | 1 | 0 |
| Driver Fitness | 4 | 2 | 1 |
| Controlled Substances/​Alcohol | 1 | 1 | 1 |
| AZ |
| TRUCK TRACTOR |
| 9 |
| 3 |
| Apr 4, 2025 | UT | TRUCK TRACTOR | 3 | 0 |
| Mar 11, 2025 | UT | TRUCK TRACTOR | 1 | 0 |
| Nov 27, 2024 | CO | TRUCK TRACTOR | 0 | 0 |
| Nov 27, 2024 | WY | TRUCK TRACTOR | 0 | 0 |
| Nov 26, 2024 | SD | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 22, 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 | — |
| Dec 24, 2025 | 3922SLLLR | State/Local Laws - Lane restriction violation | Unsafe Driving | — |
| Dec 15, 2025 | 39111B2Q | Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) as per FMCSA Enforcement Guidance Memo MC-SEE-2025-0001. Driver failed the I | Driver Fitness | Yes |
| Dec 15, 2025 | 3922SLLUP | State/Local Laws - Unlawfully parking /leaving vehicle on roadway | Unsafe Driving | — |
| Dec 15, 2025 | 393203BCBP | Cab and Body Parts - Cab/body mounts loose/broken/missing | Vehicle Maintenance | — |
| Dec 15, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Dec 15, 2025 | 39353BB | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |
| Dec 15, 2025 | 39375A1TBSP | Tires - All others - Has damaged plies evident in the sidewall up to 2 square inches | Vehicle Maintenance | Yes |
| Dec 15, 2025 | 39395F | Emergency Equipment - Stopped vehicle warning devices missing or improper | Vehicle Maintenance | — |
| Dec 15, 2025 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |