Teraflex Group Llc is an active interstate carrier based in Williston, ND.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 11 | 0 | 0 |
| Tractors | 9 | 0 | 0 |
| Trailers | 35 | 0 | 0 |
| Total Power Units | 20 | ||
Distinct vehicles · 24 mo
vs 20 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 | 66% | 90% | Around peer average |
| HOS Compliance | 82% | 93% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 75% | 88% | 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 | 7 | — | 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 | 18 | 5 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 19, 2026 | ND | STRAIGHT TRUCK | 0 | 0 |
| Jan 12, 2026 | NC | STRAIGHT TRUCK | 1 | 1 |
| Oct 15, 2025 | ND | TRUCK TRACTOR | 7 | 2 |
| Oct 6, 2025 | MT | TRUCK TRACTOR | 0 | 0 |
Carriers that share an officer, phone, or email with this DOT.
Shared officer · 1
Shared email · 1
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 1 | 0.50 | — |
| HOS Compliance | 1 | 0.16 | — |
| Vehicle Maintenance | 5 | 6.66 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 6 states. Top state ND accounts for 50% of activity. Activity outside home state (ND): 50%.
+1 other state with fewer inspections
| 8 |
| Hours-of-Service Compliance | 1 | 0 | 1 |
| Unsafe Driving | 1 | 0 | 0 |
| Aug 12, 2025 |
| ND |
| TRUCK TRACTOR |
| 1 |
| 0 |
| Jul 24, 2025 | SD | TRUCK TRACTOR | 0 | 0 |
| Jul 16, 2025 | MT | TRUCK TRACTOR | 1 | 1 |
| Jun 16, 2025 | ND | TRUCK TRACTOR | 0 | 0 |
| May 8, 2025 | ND | STRAIGHT TRUCK | 1 | 1 |
| Mar 27, 2025 | SC | STRAIGHT TRUCK | 0 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 12, 2026 | 3939BRKLAMP | Inoperative Brake Lamps | Vehicle Maintenance | Yes |
| Oct 15, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Oct 15, 2025 | 39345B2BHTD | Air Brake - Hose/tubing damage into the outer reinforcement ply. | Vehicle Maintenance | Yes |
| Oct 15, 2025 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Oct 15, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Oct 15, 2025 | 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 | — |
| Oct 15, 2025 | 3939ALSML | Lighting - Side marker lamp(s) inoperative | Vehicle Maintenance | — |
| Oct 15, 2025 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Aug 12, 2025 | 3922SLLML | State/Local Laws - Failure to maintain lane | Unsafe Driving | — |
| Jul 16, 2025 | 393130BCHVE | Heavy Vehicles/Equipment - Improper securement of accessory equipment or articulated vehicles | Vehicle Maintenance | Yes |