Big 4 Services Llc is an active interstate carrier based in Vernal, UT.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 20 | 0 | 0 |
| Tractors | 38 | 0 | 0 |
| Trailers | 62 | 0 | 0 |
| Total Power Units | 58 | ||
Distinct vehicles · 24 mo
vs 58 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 | 0% | 0% | Better than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 96% | 95% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 5 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 1 state. Top state accounts for of activity.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 23 | 3 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Jan 6, 2026 | UT | TRUCK TRACTOR | 7 | 2 |
| Oct 3, 2025 | UT | TRUCK TRACTOR | 1 | 0 |
| Apr 25, 2025 | UT | STRAIGHT TRUCK | 3 | 1 |
| Apr 3, 2025 | UT | TRUCK TRACTOR | 7 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 6 | 17.25 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 5 |
| 2 |
| Mar 12, 2025 | UT | TRUCK TRACTOR | 2 | 0 |
| Mar 3, 2025 | UT | TRUCK TRACTOR | 3 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Jan 6, 2026 | 39345DBAAL | Air Brake - Audible air leak at other than a proper connection | Vehicle Maintenance | Yes |
| Jan 6, 2026 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Jan 6, 2026 | 39348ABMBCBD | Drum Brake - Missing/broken component(s) | Vehicle Maintenance | — |
| Jan 6, 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 6, 2026 | 3939ALBL | Lighting - Backup lamp inoperative | Vehicle Maintenance | — |
| Jan 6, 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 6, 2026 | 3965BL | Lubrication - Oil or grease leak | Vehicle Maintenance | — |
| Oct 3, 2025 | 3963A1BALAC | Brake - Audible air leak from a brake chamber | Vehicle Maintenance | — |
| Apr 25, 2025 | 39311A1LBL | Lighting - Backup lamp missing | Vehicle Maintenance | — |
| Apr 25, 2025 | 39347BBMBCBDSA | Drum Brake - Mismatched brake chamber sizes on a steering axle | Vehicle Maintenance | Yes |