DBA: Mwm Trucking
William Ernesto Marin Perez is an active intrastate non-hazmat carrier based in San Antonio, TX.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 1 | 0 | 0 |
| Tractors | 1 | 0 | 0 |
| Trailers | 1 | 0 | 0 |
| Total Power Units | 1 | ||
Distinct vehicles · 24 mo
vs 1 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 | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 93% | 91% | 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 | 3 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 1 state. Top state TX 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 | 24 | 4 | 6 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Sep 18, 2025 | TX | TRUCK TRACTOR | 0 | 0 |
| May 27, 2025 | TX | TRUCK TRACTOR | 9 | 3 |
| Oct 25, 2024 | TX | TRUCK TRACTOR | 1 | 0 |
| May 29, 2024 | TX | TRUCK TRACTOR | 12 | 3 |
Carriers that share an officer, phone, or email with this DOT.
Shared officer · 5
Kajeva Group Corp
Miami Gardens, FL
William Marin · also at 5 others
Kle Transportation Llc
Elizabeth, NJ
William Marin · also at 5 others
Shekhyna Inc
Margate, FL
William Marin · also at 5 others
Shekhyna Truck Inc
Venus, FL
William Marin · also at 5 others
William S Marin
Sturgeon Bay, WI
William Marin · also at 5 others
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 5 | 12.76 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| May 14, 2024 | TX | TRUCK TRACTOR | 2 | 1 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| May 27, 2025 | 39347A | Inadequate brakes for safe stopping - Brake Lining condition | Vehicle Maintenance | — |
| May 27, 2025 | 39347E | Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt | Vehicle Maintenance | — |
| May 27, 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 |
| May 27, 2025 | 39378 | Wipers - Inoperative / missing / damaged wipers | Vehicle Maintenance | — |
| May 27, 2025 | 39383E | Exhaust - System discharging from a truck or truck-tractor at a location other than at the rear of the cab | Vehicle Maintenance | — |
| May 27, 2025 | 39617C | Operating a CMV without proof of a periodic inspection | Vehicle Maintenance | — |
| May 27, 2025 | 3963A1 | Inspection repair and maintenance of parts and accessories | Vehicle Maintenance | — |
| May 27, 2025 | 3963A1B | Brakes (general) Explain: | Vehicle Maintenance | — |
| May 27, 2025 | 3963A1BOS | BRAKES OUT OF SERVICE: The number of defective brakes is equal to or greater than 20 percent of the service brakes on the vehicle or combination | Vehicle Maintenance | Yes |
| Oct 25, 2024 | 39378 | Wipers - Inoperative / missing / damaged wipers | Vehicle Maintenance | — |