S & T Trucking Incorporated is an active interstate carrier based in Ranchester, WY.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 5 | 0 | 0 |
| Tractors | 1 | 4 | 0 |
| Trailers | 5 | 1 | 0 |
| Total Power Units | 5 | ||
Distinct vehicles · 24 mo
vs 5 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 | 99% | 98% | Worse than most peers |
| HOS Compliance | 94% | 96% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 83% | 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 | 1 | — | 6.67% |
| Vehicle | 0 | 8 | — | 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 | 19 | 5 | 8 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 7, 2026 | IA | TRUCK TRACTOR | 5 | 2 |
| Mar 4, 2026 | MS | TRUCK TRACTOR | 0 | 0 |
| Feb 4, 2026 | CO | TRUCK TRACTOR | 5 | 0 |
| Jan 21, 2026 | NV | TRUCK TRACTOR | 0 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 4.20 | — |
| HOS Compliance | 1 | 0.64 | — |
| Vehicle Maintenance | 8 | 5.50 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 10 states. Top state MT accounts for 21% of activity. Activity outside home state (WY): 100%.
+5 other states with fewer inspections
| Hours-of-Service Compliance |
| 1 |
| 1 |
| 1 |
| Unsafe Driving | 1 | 1 | 0 |
| Jan 15, 2026 |
| MT |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Dec 27, 2025 | TX | TRUCK TRACTOR | 2 | 0 |
| Dec 26, 2025 | TX | TRUCK TRACTOR | 3 | 1 |
| Dec 14, 2025 | ND | TRUCK TRACTOR | 0 | 0 |
| Dec 4, 2025 | NE | TRUCK TRACTOR | 0 | 0 |
| Oct 2, 2025 | WA | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 7, 2026 | 393130C | Improper restraint/securement of item | Vehicle Maintenance | Yes |
| Mar 7, 2026 | 39360C | Windshield - Damaged or Discolored | Vehicle Maintenance | — |
| Mar 7, 2026 | 39378 | Wipers - Inoperative / missing / damaged wipers | Vehicle Maintenance | — |
| Mar 7, 2026 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Mar 7, 2026 | 3958E | False report of drivers record of duty status | Hours-of-Service Compliance | Yes |
| Feb 4, 2026 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Feb 4, 2026 | 39360C | Windshield - Damaged or Discolored | Vehicle Maintenance | — |
| Feb 4, 2026 | 39378AWS | Washers - Inoperative washing system. | Vehicle Maintenance | — |
| Feb 4, 2026 | 3939ALSML | Lighting - Side marker lamp(s) inoperative | Vehicle Maintenance | — |
| Feb 4, 2026 | 3939BLSML | Lighting - Side marker lamp(s) obscured | Vehicle Maintenance | — |