Southwest Interstate Transportation Inc is an active interstate carrier based in Cumby, TX.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 19 | 0 | 0 |
| Tractors | 3 | 16 | 0 |
| Trailers | 22 | 0 | 0 |
| Total Power Units | 19 | ||
Distinct vehicles · 24 mo
vs 19 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 | 84% | 94% | Worse than most peers |
| HOS Compliance | 64% | 90% | Around peer average |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 63% | 80% | Around peer average |
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 | 13 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2025 | 0 | 1 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 78 | 12 | 17 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 12, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Jan 29, 2026 | TX | TRUCK TRACTOR | 1 | 0 |
| Jan 18, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Jan 14, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Jan 5, 2026 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 3 | 1.07 | — |
| HOS Compliance | 1 | 0.02 | — |
| Vehicle Maintenance | 28 | 6.53 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 6 states. Top state TX accounts for 70% of activity. Activity outside home state (TX): 30%.
+1 other state with fewer inspections
| Unsafe Driving |
| 3 |
| 1 |
| 0 |
| Hours-of-Service Compliance | 1 | 0 | 0 |
| AR |
| TRUCK TRACTOR |
| 5 |
| 1 |
| Dec 28, 2025 | TX | TRUCK TRACTOR | 3 | 0 |
| Dec 16, 2025 | TX | TRUCK TRACTOR | 0 | 0 |
| Nov 3, 2025 | TX | TRUCK TRACTOR | 10 | 4 |
| Oct 30, 2025 | TX | TRUCK TRACTOR | 7 | 2 |
| Oct 6, 2025 | TX | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 29, 2026 | 3939H | Inoperable head lamps | Vehicle Maintenance | — |
| Jan 5, 2026 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Jan 5, 2026 | 39353BB | Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |
| Jan 5, 2026 | 39378AWS | Washers - Inoperative washing system. | Vehicle Maintenance | — |
| Jan 5, 2026 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Jan 5, 2026 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| Dec 28, 2025 | 39311UR | Upper Rear retroreflective sheeting or reflex reflecting material requirements for vehicles manufactured after December 1993 | Vehicle Maintenance | — |
| Dec 28, 2025 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Dec 28, 2025 | 3965B | Oil and/or grease leak | Vehicle Maintenance | — |
| Nov 3, 2025 | 39311TU | Truck-Tractor upper body corner requirements for retroreflective sheeting or reflex reflective material for vehicles manufactured after July 1997 | Vehicle Maintenance | — |