S And K Stack Testing Inc is an active interstate carrier based in Watford City, ND.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 9 | 0 | 0 |
| Tractors | 7 | 0 | 0 |
| Trailers | 7 | 0 | 0 |
| Total Power Units | 16 | ||
Distinct vehicles · 24 mo
vs 16 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 | 86% | 96% | Worse than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 70% | 86% | 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 | 2 | — | 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 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Sep 20, 2025 | ND | STRAIGHT TRUCK | 3 | 2 |
| Aug 27, 2025 | ND | TRUCK TRACTOR | 0 | 0 |
| Jun 17, 2025 | ND | STRAIGHT TRUCK | 1 | 0 |
| Oct 21, 2024 | ND | TRUCK TRACTOR | 0 | 0 |
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 3 | 6.85 | — |
| Driver Fitness | 1 | 1.11 | — |
| Controlled Substances | 0 | 0.00 | — |
| 6 |
| 1 |
| 2 |
| Driver Fitness | 1 | 1 | 1 |
| Sep 13, 2024 |
| ND |
| STRAIGHT TRUCK |
| 0 |
| 0 |
| Sep 4, 2024 | ND | TRUCK TRACTOR | 3 | 1 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Sep 20, 2025 | 39343DB | Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly | Vehicle Maintenance | Yes |
| Sep 20, 2025 | 39348ABIHE | Hydraulic/Electric Brake - Inoperative other than a steering axle. | Vehicle Maintenance | — |
| Sep 20, 2025 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Jun 17, 2025 | 39375CTAOTDLT232 | Tires - Less than 2/32 inch tread depth | Vehicle Maintenance | — |
| Sep 4, 2024 | 39111B5LNCDLNVE | License - Endorsement - Operate a CMV without proper endorsement or in violation of restriction. NOTE: Other than a 391.41 violation. | Driver Fitness | Yes |
| Sep 4, 2024 | 39351CBNVLAWD | Air Brake - No visual low air warning device manufactured on or after 1975. | Vehicle Maintenance | — |
| Sep 4, 2024 | 39355D1B | Air Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1 1997 and each single unit CMV on or after 1998. | Vehicle Maintenance | — |