M S & SONS CORP
SatisfactoryDOT Number: 133751
Company Information
- Phone
- (515) 332-3303
- Address
- 1605 SASSY LANE, HUMBOLDT, IA 50548
- FleetPower units are the commercial motor vehicles (trucks, tractors, buses) registered to this carrier.
- 40 power units · 42 drivers
- Operation
- Interstate · MC-143871
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 |
|---|---|---|---|---|---|
| 4/23/2026 | Level 3 | WI | 1 | Passed | |
| 4/21/2026 | Level 2 | IA | 0 | Passed | |
| 3/27/2026 | Level 3 | SD | 0 | Passed | |
| 2/2/2026 | Level 3 | IA | 1 | Passed | |
| 2/1/2026 | Level 3 | IA | 1 | Passed | |
| 12/19/2025 | Level 3 | IA | 1 | Passed | |
| 12/8/2025 | Level 2 | IA | 2 | OOS Violation | |
| 11/17/2025 | Level 2 | IA | 0 | Passed | |
| 11/17/2025 | Level 1 | WI | 1 | Passed | |
| 11/9/2025 | Level 3 | IA | 0 | Passed | |
| 11/3/2025 | Level 3 | IA | 1 | Passed | |
| 10/1/2025 | Level 3 | IA | 1 | Passed | |
| 9/26/2025 | Level 3 | IA | 1 | Passed | |
| 9/15/2025 | Level 1 | NE | 4 | Passed | |
| 9/15/2025 | Level 1 | MN | 1 | Passed | |
| 8/26/2025 | Level 1 | IA | 0 | Passed | |
| 7/28/2025 | Level 3 | IL | 1 | Passed | |
| 6/19/2025 | Level 3 | IA | 1 | Passed | |
| 6/18/2025 | Level 3 | IA | 1 | Passed | |
| 5/22/2025 | Level 3 | IA | 1 | Passed | |
| 4/29/2025 | Level 2 | KS | 3 | Passed | |
| 3/28/2025 | Level 3 | IA | 1 | Passed | |
| 3/21/2025 | Level 3 | SD | 1 | Passed | |
| 1/26/2025 | Level 2 | IA | 1 | Passed | |
| 1/23/2025 | Level 3 | IA | 1 | Passed | |
| 12/30/2024 | Level 3 | IA | 2 | OOS Violation | |
| 11/29/2024 | Level 3 | IA | 1 | Passed | |
| 11/28/2024 | Level 2 | IA | 0 | Passed | |
| 11/7/2024 | Level 3 | IA | 1 | Passed | |
| 11/5/2024 | Level 3 | IA | 3 | Passed | |
| 9/16/2024 | Level 2 | IA | 0 | Passed | |
| 9/10/2024 | Level 2 | IA | 1 | Passed | |
| 9/7/2024 | Level 3 | IA | 1 | Passed | |
| 7/29/2024 | Level 3 | IA | 1 | Passed | |
| 7/20/2024 | Level 2 | IA | 3 | Passed | |
| 6/27/2024 | Level 3 | IA | 4 | Passed | |
| 6/20/2024 | Level 3 | SD | 1 | OOS Violation | |
| 5/16/2024 | Level 1 | IL | 0 | Passed | |
| 5/16/2024 | Level 1 | SD | 3 | Passed | |
| 5/6/2024 | Level 3 | IA | 1 | Passed | |
| 4/26/2024 | Level 2 | IA | 3 | Passed | |
| 1/30/2024 | Level 3 | IA | 3 | Passed | |
| 1/25/2024 | Level 3 | IL | 2 | Passed | |
| 1/25/2024 | Level 1 | WI | 3 | Passed | |
| 1/8/2024 | Level 3 | IN | 1 | Passed | |
| 1/3/2024 | Level 3 | IA | 1 | Passed | |
| 12/19/2023 | Level 3 | IA | 1 | Passed | |
| 12/19/2023 | Level 3 | IA | 1 | Passed | |
| 12/18/2023 | Level 3 | IA | 1 | Passed | |
| 11/27/2023 | Level 3 | IA | 2 | 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.