Def Transport Llc is an active interstate carrier based in Waterloo, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 15 | 0 | 0 |
| Tractors | 15 | 0 | 0 |
| Trailers | 15 | 0 | 0 |
| Total Power Units | 15 | ||
Distinct vehicles · 24 mo
vs 15 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 87% | 90% | Worse than most peers |
| HOS Compliance | 86% | 95% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 83% | 93% | 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 |
|---|---|---|---|---|
| Jan 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 42 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 22, 2026 | IA | TRUCK TRACTOR | 0 | 0 |
| Feb 9, 2026 | KS | TRUCK TRACTOR | 0 | 0 |
| Dec 26, 2025 | LA | TRUCK TRACTOR | 1 | 0 |
| Dec 13, 2025 | AL | TRUCK TRACTOR | 0 | 0 |
| Nov 23, 2025 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 4 | 3.44 | — |
| HOS Compliance | 3 | 0.37 | — |
| Vehicle Maintenance | 14 | 9.60 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 17 states. Top state TX accounts for 12% of activity. Activity outside home state (IA): 88%.
+12 other states with fewer inspections
| 9 |
| Unsafe Driving | 4 | 1 | 0 |
| Hours-of-Service Compliance | 3 | 2 | 0 |
| KY |
| TRUCK TRACTOR |
| 1 |
| 2 |
| Nov 21, 2025 | AL | TRUCK TRACTOR | 0 | 0 |
| Nov 17, 2025 | IA | TRUCK TRACTOR | 2 | 1 |
| Nov 15, 2025 | TX | TRUCK TRACTOR | 1 | 0 |
| Oct 22, 2025 | AR | TRUCK TRACTOR | 1 | 0 |
| Sep 16, 2025 | FL | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Dec 26, 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 | — |
| Nov 23, 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 |
| Nov 17, 2025 | 39311 | No or defective lighting devices or reflective material as required | Vehicle Maintenance | — |
| Nov 17, 2025 | 3939ALSLIWR | Lighting - Stop lamps - Both inoperative when required to be on | Vehicle Maintenance | Yes |
| Nov 15, 2025 | 3939TS | Inoperative turn signal | Vehicle Maintenance | — |
| Oct 22, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Sep 16, 2025 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Sep 5, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Sep 5, 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 | — |
| Sep 5, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |