Royster Trucking Inc is an active interstate carrier based in Duncombe, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 3 | 0 | 0 |
| Tractors | 3 | 0 | 0 |
| Trailers | 12 | 0 | 0 |
| Total Power Units | 3 | ||
Distinct vehicles · 24 mo
vs 3 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 | 82% | 84% | Worse than most peers |
| HOS Compliance | 96% | 95% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 89% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 1 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| 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 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 14, 2026 | IA | TRUCK TRACTOR | 0 | 0 |
| Oct 30, 2025 | MO | TRUCK TRACTOR | 1 | 0 |
| Oct 1, 2025 | IA | TRUCK TRACTOR | 0 | 0 |
| Jul 29, 2025 | IA | TRUCK TRACTOR | 1 | 1 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 1.17 | — |
| HOS Compliance | 1 | 0.38 | — |
| Vehicle Maintenance | 4 | 5.70 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 3 states. Top state IA accounts for 50% of activity. Activity outside home state (IA): 50%.
| 2 |
| 1 |
| Hours-of-Service Compliance | 1 | 1 | 0 |
| Unsafe Driving | 1 | 0 | 0 |
| Mar 30, 2025 |
| IA |
| TRUCK TRACTOR |
| 3 |
| 0 |
| Mar 20, 2025 | MO | TRUCK TRACTOR | 0 | 0 |
| Feb 4, 2025 | MO | TRUCK TRACTOR | 0 | 0 |
| Feb 2, 2025 | IA | TRUCK TRACTOR | 3 | 0 |
| Oct 20, 2024 | MO | TRUCK TRACTOR | 0 | 0 |
| Jul 24, 2024 | NE | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Oct 30, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Jul 29, 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 |
| Mar 30, 2025 | 39355D1 | CMV not equipped with ABS malfunction circuit or signal (Truck-Tractor mfg on/after 3/1/1997; Straight Truck mfg on/after 3/1/1998) | Vehicle Maintenance | — |
| Mar 30, 2025 | 39378 | Wipers - Inoperative / missing / damaged wipers | Vehicle Maintenance | — |
| Mar 30, 2025 | 3939T | Inoperable tail lamp | Vehicle Maintenance | — |
| Feb 2, 2025 | 39271A | Using or equipping a CMV with radar detector | Unsafe Driving | — |
| Feb 2, 2025 | 39311TL | Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 | Vehicle Maintenance | — |
| Feb 2, 2025 | 3958E1PC | False Record of Duty Status - Improper use of Personal Conveyance Exception | Hours-of-Service Compliance | — |