Decker Truck Service Inc is an active interstate carrier based in Humboldt, SD.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 4 | 0 | 0 |
| Tractors | 4 | 0 | 0 |
| Trailers | 5 | 1 | 0 |
| Total Power Units | 4 | ||
Distinct vehicles · 24 mo
vs 4 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 | 95% | 95% | Worse than most peers |
| 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 | 90% | 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 | 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 |
|---|---|---|---|
| Unsafe Driving | 3 | 0 | 0 |
| Vehicle Maintenance | 2 | 1 | 1 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Nov 24, 2025 | NE | TRUCK TRACTOR | 0 | 0 |
| Nov 12, 2025 | IA | TRUCK TRACTOR | 2 | 1 |
| Apr 1, 2025 | SD | TRUCK TRACTOR | 0 | 0 |
| Jan 6, 2025 | AR | TRUCK TRACTOR | 0 | 0 |
| Dec 10, 2024 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 3.26 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 1 | 12.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 5 states. Top state IA accounts for 30% of activity. Activity outside home state (SD): 90%.
| IA |
| TRUCK TRACTOR |
| 1 |
| 0 |
| Nov 6, 2024 | NE | TRUCK TRACTOR | 0 | 0 |
| Oct 1, 2024 | IN | TRUCK TRACTOR | 1 | 0 |
| Aug 14, 2024 | NE | TRUCK TRACTOR | 0 | 0 |
| Jun 4, 2024 | IA | TRUCK TRACTOR | 1 | 0 |
| Mar 29, 2024 | AR | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Nov 12, 2025 | 39311TL | Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 | Vehicle Maintenance | — |
| Nov 12, 2025 | 393207B | Adjustable axle locking pins missing or not engaged | Vehicle Maintenance | Yes |
| Dec 10, 2024 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Oct 1, 2024 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Jun 4, 2024 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |