William Dennis Cook Inc is an active interstate carrier based in Mountain City, TN.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 8 | 0 | 0 |
| Tractors | 8 | 0 | 0 |
| Trailers | 6 | 0 | 0 |
| Total Power Units | 8 | ||
Distinct vehicles · 24 mo
vs 8 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 98% | 97% | Worse than most peers |
| HOS Compliance | 89% | 92% | Worse than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 86% | 92% | 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 | 10 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jul 1, 2024 | 0 | 1 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 28 | 9 | 12 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 4, 2026 | NM | TRUCK TRACTOR | 0 | 0 |
| Feb 24, 2026 | CA | TRUCK TRACTOR | 8 | 4 |
| Feb 18, 2026 | SC | TRUCK TRACTOR | 2 | 0 |
| Jan 14, 2026 | SC | TRUCK TRACTOR | 5 | 3 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 5 | 7.37 | — |
| HOS Compliance | 4 | 0.50 | — |
| Vehicle Maintenance | 11 | 8.40 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 16 states. Top state NC accounts for 29% of activity. Activity outside home state (TN): 91%.
+11 other states with fewer inspections
| Hours-of-Service Compliance |
| 6 |
| 2 |
| 1 |
| Unsafe Driving | 6 | 3 | 0 |
| Dec 31, 2025 | OK | TRUCK TRACTOR | 0 | 0 |
| Oct 21, 2025 | TN | TRUCK TRACTOR | 0 | 0 |
| Oct 8, 2025 | NM | TRUCK TRACTOR | 0 | 0 |
| Sep 24, 2025 | MO | TRUCK TRACTOR | 1 | 0 |
| Sep 12, 2025 | UT | TRUCK TRACTOR | 0 | 0 |
| Sep 5, 2025 | NC | TRUCK TRACTOR | 2 | 1 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 24, 2026 | 39345DB | Air Brake - Audible air leak at a proper connection | Vehicle Maintenance | — |
| Feb 24, 2026 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| Feb 24, 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 | — |
| Feb 24, 2026 | 3939ALFTSI | Lighting - Front - Turn signal - inoperative | Vehicle Maintenance | — |
| Feb 24, 2026 | 39524 | HOS (ELD) - ELD Form and Manner | Hours-of-Service Compliance | — |
| Feb 24, 2026 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Feb 24, 2026 | 3963A1DLDSUJBCB | Driveline/Driveshaft - Any missing broken or loose universal joint bearing cap bolt bearing strap or retainer bolt | Vehicle Maintenance | Yes |
| Feb 24, 2026 | 3965BHWSL | Hubs - Wheel seal leaking | Vehicle Maintenance | Yes |
| Feb 18, 2026 | 39216D | Driver - Failed to use seat belt while operating a CMV | Unsafe Driving | — |
| Feb 18, 2026 | 3922SLLFC | State/Local Laws - Following too closely | Unsafe Driving | — |