Southwestern Motor Transport Inc is an active interstate carrier based in San Antonio, TX.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 52 | 0 | 0 |
| Tractors | 194 | 66 | 0 |
| Trailers | 798 | 0 | 0 |
| Total Power Units | 312 | ||
Distinct vehicles · 24 mo
vs 312 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 46% | 92% | Around peer average |
| HOS Compliance | 52% | 90% | Around peer average |
| Driver Fitness | 46% | 91% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 42% | 72% | 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 | 1 | — | 6.67% |
| Vehicle | 0 | 12 | — | 22.26% |
| Hazmat | 5 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Oct 1, 2025 | 0 | 0 | 1 | 1 |
| Jul 1, 2025 | 0 | 1 | 1 | 1 |
| Apr 1, 2025 | 0 | 1 | 1 | 1 |
| Jan 1, 2025 | 0 | 1 | 1 | 2 |
| Oct 1, 2024 | 0 | 0 | 2 | 2 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 91 | 19 | 16 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 14, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Mar 12, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Mar 11, 2026 | TX | TRUCK TRACTOR | 2 | 1 |
| Mar 10, 2026 | TX | TRUCK TRACTOR | 3 | 0 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 6 | 0.13 | — |
| HOS Compliance | 4 | 0.04 | — |
| Vehicle Maintenance | 50 | 2.54 | — |
| Driver Fitness | 1 | 0.07 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 12 states. Top state TX accounts for 75% of activity. Activity outside home state (TX): 25%.
+7 other states with fewer inspections
| Hours-of-Service Compliance |
| 8 |
| 0 |
| 0 |
| Unsafe Driving | 7 | 2 | 0 |
| Hazardous Materials Compliance | 3 | 0 | 0 |
| Driver Fitness | 1 | 1 | 1 |
| Feb 24, 2026 |
| TX |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Feb 19, 2026 | AR | TRUCK TRACTOR | 0 | 0 |
| Feb 13, 2026 | TX | STRAIGHT TRUCK | 0 | 0 |
| Feb 12, 2026 | TX | TRUCK TRACTOR | 1 | 0 |
| Feb 8, 2026 | AR | TRUCK TRACTOR | 0 | 0 |
| Jan 21, 2026 | TX | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 11, 2026 | 3929A2C | Cargo - Vehicle components or dunnage not secured | Vehicle Maintenance | Yes |
| Mar 11, 2026 | 393100A | No or improper load securement | Vehicle Maintenance | — |
| Mar 10, 2026 | 39348A | Inoperative/defective brakes | Vehicle Maintenance | — |
| Mar 10, 2026 | 39353B | CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear | Vehicle Maintenance | — |
| Mar 10, 2026 | 3965BHWSLIW | Hubs - Wheel seal leaking - inner wheel | Vehicle Maintenance | — |
| Feb 12, 2026 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Jan 21, 2026 | 3939H | Inoperable head lamps | Vehicle Maintenance | — |
| Nov 21, 2025 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Nov 14, 2025 | 39360C | Windshield - Damaged or Discolored | Vehicle Maintenance | — |
| Oct 9, 2025 | 3939H | Inoperable head lamps | Vehicle Maintenance | — |