Dw Zinser Co Inc is an active interstate carrier based in Walford, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 0 | 0 |
| Tractors | 11 | 0 | 0 |
| Trailers | 54 | 0 | 0 |
| Total Power Units | 14 | ||
Distinct vehicles · 24 mo
vs 14 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 | 72% | 87% | Around peer average |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 82% | 94% | 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 | 2 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 6 | 2 | 3 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Aug 18, 2025 | IA | TRUCK TRACTOR | 0 | 0 |
| Jul 21, 2025 | IA | TRUCK TRACTOR | 4 | 1 |
| Jan 27, 2025 | IA | TRUCK TRACTOR | 2 | 1 |
| Aug 13, 2024 | IA | TRUCK TRACTOR | 0 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 4 | 2.07 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 3 | 10.25 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
Where they run
Inspected in 1 state. Top state IA accounts for 100% of activity. Activity outside home state (IA): 0%.
| Unsafe Driving |
| 4 |
| 2 |
| 0 |
| Aug 5, 2024 |
| IA |
| TRUCK TRACTOR |
| 1 |
| 1 |
| Aug 5, 2024 | IA | TRUCK TRACTOR | 1 | 0 |
| Jul 15, 2024 | IA | TRUCK TRACTOR | 1 | 0 |
| May 28, 2024 | IA | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jul 21, 2025 | 39216 | Failing to use seat belt while operating a CMV | Unsafe Driving | — |
| Jul 21, 2025 | 39345B2 | Brake hose or tubing chafing and/or kinking | Vehicle Maintenance | — |
| Jul 21, 2025 | 39348A | Inoperative/defective brakes | Vehicle Maintenance | — |
| Jul 21, 2025 | 3963A1BOS | BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination | Vehicle Maintenance | Yes |
| Jan 27, 2025 | 39311TL | Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 | Vehicle Maintenance | — |
| Jan 27, 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 |
| Aug 5, 2024 | 3939BRKLAMP | Inoperative Brake Lamps | Vehicle Maintenance | Yes |
| Aug 5, 2024 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Jul 15, 2024 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| May 28, 2024 | 39216 | Failing to use seat belt while operating a CMV | Unsafe Driving | — |