COS LLC
SatisfactoryDOT Number: 2496282
Company Information
- Phone
- (701) 572-1832
- Address
- 501 48TH AVE W, WILLISTON, ND 58801
- FleetPower units are the commercial motor vehicles (trucks, tractors, buses) registered to this carrier.
- 20 power units · 19 drivers
- Operation
- Interstate · MC-1376430
Latest Roadside Inspections
Click any inspection to view violation details.
| Date | LevelLevel 1 is the most thorough inspection (full vehicle and driver review). Level 2 is a walk-around. Level 3 is driver-only. Level 5 is vehicle-only without driver present. | State | ViolationsThe total number of violations found during this roadside inspection, including both driver and vehicle issues. | StatusOut-of-Service (OOS) means the violation was serious enough that the vehicle or driver was ordered off the road until the issue is corrected. | Expand |
|---|---|---|---|---|---|
| 4/18/2026 | Level 1 | ND | 17 | OOS Violation | |
| 4/9/2025 | Level 2 | ND | 2 | Passed | |
| 2/24/2025 | Level 3 | ND | 1 | Passed | |
| 2/1/2025 | Level 1 | WY | 11 | OOS Violation | |
| 2/1/2025 | Level 2 | WY | 27 | OOS Violation | |
| 2/1/2025 | Level 1 | WY | 15 | OOS Violation | |
| 1/10/2025 | Level 2 | ND | 4 | Passed | |
| 12/3/2024 | Level 3 | ND | 1 | OOS Violation | |
| 8/22/2024 | Level 3 | SD | 2 | OOS Violation | |
| 8/14/2024 | Level 2 | ND | 4 | Passed | |
| 7/26/2024 | Level 2 | ND | 1 | Passed | |
| 7/9/2024 | Level 2 | TX | 9 | OOS Violation | |
| 6/24/2024 | Level 2 | MT | 1 | OOS Violation | |
| 6/3/2024 | Level 1 | ND | 5 | OOS Violation | |
| 5/16/2024 | Level 2 | ND | 8 | OOS Violation | |
| 4/3/2024 | Level 1 | ND | 5 | Passed | |
| 2/2/2024 | Level 3 | ND | 0 | Passed | |
| 1/6/2024 | Level 3 | ND | 1 | Passed | |
| 8/16/2023 | Level 3 | ND | 1 | Passed | |
| 7/19/2023 | Level 3 | ND | 0 | Passed |
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Understanding This Report
Safety Rating is assigned after an FMCSA compliance review. “Satisfactory” means adequate safety controls are in place. “Conditional” means corrective action is needed. “Unsatisfactory” indicates a risk to public safety. Many carriers are “Not Rated” simply because they haven't been reviewed yet.
OOS violations are the most serious outcomes of a roadside inspection — the vehicle or driver is immediately taken off the road. A high OOS rate is a strong indicator of systemic maintenance or compliance issues.
For a deeper understanding, read our guides on CSA scores and DOT roadside inspection levels.