National Trench Safety Inc is an active interstate carrier based in Houston, TX.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 171 | 55 | 0 |
| Tractors | 47 | 9 | 0 |
| Trailers | 121 | 0 | 0 |
| Total Power Units | 282 | ||
Distinct vehicles · 24 mo
vs 282 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 59% | 92% | Around peer average |
| HOS Compliance | 49% | 90% | Around peer average |
| Driver Fitness | 67% | 92% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 61% | 75% | 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 | 6 | — | 6.67% |
| Vehicle | 0 | 18 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 0 | 1 | 1 |
| Oct 1, 2025 | 0 | 1 | 0 | 1 |
| Oct 1, 2024 | 0 | 0 | 2 | 2 |
| Jul 1, 2024 | 0 | 1 | 2 | 2 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 113 | 31 | 23 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 17, 2026 | TX | TRUCK TRACTOR | 3 | 0 |
| Mar 12, 2026 | FL | STRAIGHT TRUCK | 0 | 0 |
| Mar 12, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 5, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Mar 2, 2026 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 6 | 0.17 | — |
| HOS Compliance | 4 | 0.03 | — |
| Vehicle Maintenance | 54 | 4.00 | — |
| Driver Fitness | 7 | 0.21 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 25 states. Top state CA accounts for 30% of activity. Activity outside home state (TX): 87%.
+20 other states with fewer inspections
| Driver Fitness |
| 8 |
| 2 |
| 5 |
| Hours-of-Service Compliance | 7 | 0 | 0 |
| Unsafe Driving | 6 | 1 | 0 |
| CA |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Mar 2, 2026 | CA | TRUCK TRACTOR | 1 | 0 |
| Feb 25, 2026 | CA | TRUCK TRACTOR | 1 | 0 |
| Feb 20, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Feb 19, 2026 | TX | STRAIGHT TRUCK | 6 | 1 |
| Feb 12, 2026 | TX | TRUCK TRACTOR | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 17, 2026 | 39355E | No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 | Vehicle Maintenance | — |
| Mar 17, 2026 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Mar 17, 2026 | 39617C | Operating a CMV without proof of a periodic inspection | Vehicle Maintenance | — |
| Mar 2, 2026 | 3965BHWSL | Hubs - Wheel seal leaking | Vehicle Maintenance | — |
| Feb 25, 2026 | 39355D2B | Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1 2001 for towed vehicle. | Vehicle Maintenance | — |
| Feb 19, 2026 | 39111B4 | Medical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or | Driver Fitness | Yes |
| Feb 19, 2026 | 393203 | Cab/body parts requirements violations | Vehicle Maintenance | — |
| Feb 19, 2026 | 39360EWS | Windshield - Obstructed | Vehicle Maintenance | — |
| Feb 19, 2026 | 3939 | Inoperable Required Lamp | Vehicle Maintenance | — |
| Feb 19, 2026 | 3939H | Inoperable head lamps | Vehicle Maintenance | — |