M S & Sons Corp is an active interstate carrier based in Humboldt, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 40 | 0 | 0 |
| Tractors | 31 | 9 | 0 |
| Trailers | 66 | 1 | 0 |
| Total Power Units | 40 | ||
Distinct vehicles · 24 mo
vs 40 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 93% | 92% | Worse than most peers |
| HOS Compliance | 76% | 95% | Worse than most peers |
| Driver Fitness | 47% | 94% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 56% | 89% | 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 | 0 | — | 6.67% |
| Vehicle | 0 | 3 | — | 22.26% |
| Hazmat | 5 | 0 | 0.00% |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 0 | 1 | 1 |
| Jul 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 18 | 7 | 2 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Feb 2, 2026 | IA | TRUCK TRACTOR | 1 | 0 |
| Feb 1, 2026 | IA | TRUCK TRACTOR | 1 | 0 |
| Dec 19, 2025 | IA | TRUCK TRACTOR | 1 | 0 |
| Dec 8, 2025 | IA | TRUCK TRACTOR | 2 | 1 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 17 | 4.50 | — |
| HOS Compliance | 3 | 0.27 | — |
| Vehicle Maintenance | 9 | 5.56 | — |
| Driver Fitness | 1 | 0.01 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 7 states. Top state IA accounts for 76% of activity. Activity outside home state (IA): 24%.
+2 other states with fewer inspections
| Unsafe Driving |
| 17 |
| 5 |
| 0 |
| Hours-of-Service Compliance | 3 | 0 | 1 |
| Driver Fitness | 1 | 0 | 0 |
| Nov 17, 2025 | IA | TRUCK TRACTOR | 0 | 0 |
| Nov 17, 2025 | WI | TRUCK TRACTOR | 1 | 0 |
| Nov 9, 2025 | IA | TRUCK TRACTOR | 0 | 0 |
| Nov 3, 2025 | IA | TRUCK TRACTOR | 1 | 0 |
| Oct 1, 2025 | IA | TRUCK TRACTOR | 1 | 0 |
| Sep 26, 2025 | IA | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Feb 2, 2026 | 39280A | Driving a commercial motor vehicle while Texting | Unsafe Driving | — |
| Feb 1, 2026 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Dec 19, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Dec 8, 2025 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |
| Dec 8, 2025 | 39395A | No/discharged/unsecured fire extinguisher | Vehicle Maintenance | — |
| Nov 17, 2025 | 39355EB | Air Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1 1998 | Vehicle Maintenance | — |
| Nov 3, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Oct 1, 2025 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Sep 26, 2025 | 3922INAT | Driver- Inattentive or Distracted Driving | Unsafe Driving | — |
| Sep 15, 2025 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |