LOS DIAZ TRUCKING LLC
Facts from the FMCSA record that call for a closer look. They are not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026. How this works
- Operating authority is inactive (last known)Without active authority the company may not haul or broker interstate freight for hire.
- Vehicle out-of-service rate well above the state average50.0% vs Texas average 25.1%.
No cargo cover filed with FMCSA
Green means the FMCSA record shows it. It does not confirm who you are talking to, or that a policy covers your specific load.
Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.
What to verify next
- Confirm authority and insurance on the official Motus record ↗: our copy is the last known status from May 14, 2026. Safety record: SAFER ↗.
- Call back on the number on file, (512) 704-5538, not a number from an email or load board.
- Check that the MC number you were given is MC1563631.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
No insurance filings were found in the public FMCSA data for this carrier.
Roadside inspections Oct 18, 2024 – Oct 18, 2026
3 of 6 · Texas avg 25.1%
9 of 13 · Texas avg 7.7%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Dec 12, 2025 | AZ | 2 | 8 | Yes |
| Oct 30, 2025 | AL | 2 | 3 | Yes |
| Oct 20, 2025 | FL | 3 | 2 | Yes |
| Oct 15, 2025 | WI | 3 | 4 | Yes |
| Oct 15, 2025 | WI | 2 | 11 | Yes |
| Oct 1, 2025 | KY | 3 | 2 | Yes |
| Sep 10, 2025 | OH | 2 | 2 | Yes |
| Sep 8, 2025 | TN | 2 | 2 | Yes |
| Aug 6, 2025 | IL | 3 | 0 | No |
| Jun 10, 2025 | IL | 3 | 0 | No |
How these rates are calculated
Period: Oct 18, 2024 – Oct 18, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Texas average covers 347,521 vehicle and 460,200 driver inspections of all Texas-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
27 violations counted in FMCSA's Safety Measurement System (SMS), 17 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 39 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 18, 2024 – Oct 18, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Texas share |
|---|---|---|---|---|
| Vehicle Maintenance | 10 | 3 | 37.0% | 78.8% |
| Driver Fitness | 9 | 8 | 33.3% | 4.2% |
| Hours-of-Service Compliance | 7 | 6 | 25.9% | 11.4% |
| Unsafe Driving | 1 | 0 | 3.7% | 4.8% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| HOS (Property) - Failing to have a record of duty status using the method prescribed Incomplete/Wrong Log · Hours-of-Service Compliance · code 3958A1HOSP | 6 | 6 |
| Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) in accordance with the current corresponding FMCSA enforcement guidance (391. General Driver Qualification · Driver Fitness · code 39111B2Q | 4 | 4 |
| Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency Medical Certificate · Driver Fitness · code 39141APC | 2 | 2 |
| Windshield / Windows - Tinting permits less than 70% of light transmittance Windshield/ Glass/ Markings · Vehicle Maintenance · code 39360D | 2 | 0 |
| License (CDL) - Operate a CMV and does not possess a valid CDL License-related: High · Driver Fitness · code 38323A2LCDLN | 1 | 1 |
| License - Operate a CMV without a valid operators license issued by one State or jurisdiction License-related: High · Driver Fitness · code 39111B5LNCDLNVL | 1 | 1 |
| Lighting - Tail lamp - Both lamps on rearmost vehicle inoperative when required to be on Lighting · Vehicle Maintenance · code 3939BLRLIWR | 1 | 1 |
| Wheel/Rim - Wheel fasteners loose/missing/ineffective/broken. Wheels Studs Clamps Etc. · Vehicle Maintenance · code 393205CWR | 1 | 1 |
| Hubs - Leaking hub Wheels Studs Clamps Etc. · Vehicle Maintenance · code 3965HL | 1 | 1 |
| Driver cannot read or speak the English language sufficiently to respond to official inquiries General Driver Qualification · Driver Fitness · code 39111B2 | 1 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 18, 2026. "Share" is this company's mix of violations; the Texas column is the mix across all Texas-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 18, 2024 – Oct 18, 2026
1 most recent crashes
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Feb 21, 2025 | Scottsville, KY | 0 | 0 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 18, 2026
| USDOT number | 4099698 |
|---|---|
| MC / docket | MC1563631 |
| Legal name | LOS DIAZ TRUCKING LLC |
| Operation | Interstate |
| Business type | — |
| Power units | 1 |
| Drivers | 1 |
| Annual mileage | 50,000 (2024) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Jul 6, 2023 · 3 years ago |
| Last MCS-150 update | Apr 23, 2025 |
Cargo carried
General Freight
Questions about LOS DIAZ TRUCKING LLC
What does LOS DIAZ TRUCKING LLC's operating authority allow?
FMCSA records show no active operating authority for LOS DIAZ TRUCKING LLC (MC1563631), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about LOS DIAZ TRUCKING LLC is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. No insurance filings were found in the public data. FMCSA has not issued a safety rating, which means no compliance review is on record, not that the carrier is unsafe.
What should I verify before booking LOS DIAZ TRUCKING LLC?
Confirm the authority and insurance on the Motus record for USDOT 4099698. Call the company back on the phone number on file, (512) 704-5538, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1563631, and ask the insurer for a certificate of insurance naming you as certificate holder.
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Company details from the FMCSA Company Census File (Oct 18, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error.