Warren Transport Inc 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 | 375 | 0 | 0 |
| Tractors | 4 | 371 | 0 |
| Trailers | 1,200 | 0 | 0 |
| Total Power Units | 375 | ||
Distinct vehicles · 24 mo
vs 375 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 94% | 85% | Worse than most peers |
| HOS Compliance | 50% | 94% | Around peer average |
| Driver Fitness | 50% | 94% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 75% | 88% | 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 | 5 | — | 6.67% |
| Vehicle | 0 | 78 | — | 22.26% |
| Hazmat | 1 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 1 | 2 | 2 |
| Oct 1, 2025 | 0 | 1 | 5 | 6 |
| Jul 1, 2025 | 0 | 2 | 4 | 5 |
| Apr 1, 2025 | 0 | 0 | 3 | 3 |
| Jan 1, 2025 | 0 | 0 | 2 | 2 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 198 | 71 | 88 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 25, 2026 | SD | TRUCK TRACTOR | 2 | 1 |
| Mar 25, 2026 | MO | TRUCK TRACTOR | 0 | 0 |
| Mar 23, 2026 | WI | TRUCK TRACTOR | 1 | 1 |
| Mar 19, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 72 | 1.71 | — |
| HOS Compliance | 12 | 0.06 | — |
| Vehicle Maintenance | 115 | 4.09 | — |
| Driver Fitness | 3 | 0.06 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 41 states. Top state TX accounts for 17% of activity. Activity outside home state (IA): 91%.
+36 other states with fewer inspections
| Oct 1, 2024 |
| 0 |
| 1 |
| 4 |
| 4 |
| Jul 1, 2024 | 0 | 0 | 1 | 1 |
| Unsafe Driving | 77 | 19 | 0 |
| Hours-of-Service Compliance | 13 | 4 | 1 |
| Driver Fitness | 4 | 2 | 4 |
| Mar 16, 2026 |
| KY |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Mar 15, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Mar 12, 2026 | MN | TRUCK TRACTOR | 0 | 0 |
| Mar 10, 2026 | MN | TRUCK TRACTOR | 0 | 0 |
| Mar 7, 2026 | IL | TRUCK TRACTOR | 0 | 0 |
| Mar 6, 2026 | SD | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 25, 2026 | 393104BC | Cargo - Damaged securement devices/tiedowns | Vehicle Maintenance | — |
| Mar 25, 2026 | 393110B3C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 10 feet | Vehicle Maintenance | Yes |
| Mar 23, 2026 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Feb 27, 2026 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Feb 26, 2026 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Feb 26, 2026 | 3939ALSML | Lighting - Side marker lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 26, 2026 | 3922SLLS4 | State/Local Laws - Speeding 15 or more miles per hour over the speed limit | Unsafe Driving | — |
| Feb 24, 2026 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Feb 24, 2026 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Feb 6, 2026 | 39111B4DEN | Driver operating a CMV without proper endorsements or in violation of restrictions | Driver Fitness | Yes |