HaulerCheck · https://haulercheck.com/carrier/4066781-dos-marias-trucking-llc/ · Checked 2026-10-19 23:35 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
DOS MARIAS TRUCKING LLC
Do not book until these are resolved · 2 signals
How risk signals workAt least one fact in the FMCSA record should stop a booking until it is cleared up. Confirm the current record on Motus first; it is not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- 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 average80.0% vs Arizona average 22.3%.
No cargo cover filed with FMCSA
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, (520) 685-0622, not a number from an email or load board.
- Check that the MC number you were given is MC1544151.
- 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 19, 2024 – Oct 19, 2026
4 of 5 · Arizona avg 22.3%
1 of 6 · Arizona avg 4.5%
6 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Nov 11, 2025 | AZ | 2 | 14 | No |
| Aug 19, 2025 | NM | 1 | 7 | Yes |
| Aug 12, 2025 | UT | 2 | 9 | Yes |
| May 9, 2025 | AZ | 1 | 17 | Yes |
| Mar 24, 2025 | CO | 1 | 16 | Yes |
| Jan 24, 2025 | AZ | 3 | 2 | No |
How these rates are calculated
Period: Oct 19, 2024 – Oct 19, 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 Arizona average covers 53,982 vehicle and 81,935 driver inspections of all Arizona-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
53 violations counted in FMCSA's Safety Measurement System (SMS), 12 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 65 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 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 | Arizona share |
|---|---|---|---|---|
| Vehicle Maintenance | 50 | 11 | 94.3% | 75.7% |
| Hours-of-Service Compliance | 2 | 1 | 3.8% | 12.1% |
| Driver Fitness | 1 | 0 | 1.9% | 3.5% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt Brakes Out of Adjustment · Vehicle Maintenance · code 39347E | 3 | 0 |
| Operating a CMV without documentation of a periodic inspection Inspection Reports · Vehicle Maintenance · code 39617CPI | 3 | 0 |
| Washers - Inoperative washing system. Windshield/ Glass/ Markings · Vehicle Maintenance · code 39378AWS | 3 | 0 |
| Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination Brake Out Of Service · Vehicle Maintenance · code 3963A1BOS | 2 | 2 |
| Frame - Cracked siderail web at least 1-1/2 inches directed toward the bottom flange Cab Body Frame · Vehicle Maintenance · code 393201AFRWC | 2 | 2 |
| Air Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear Brakes All Others · Vehicle Maintenance · code 39353BB | 2 | 0 |
| Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. Emergency Equipment · Vehicle Maintenance · code 39395A1 | 2 | 0 |
| Lubrication - Oil or grease leak Other Vehicle Defect · Vehicle Maintenance · code 3965BL | 2 | 0 |
| Conspicuity Systems - Trailers rear impact guard retro reflective sheeting inadequate on vehicle manufactured on or after December 1 1993 Reflective Sheeting · Vehicle Maintenance · code 39311BCSRIGRR | 2 | 0 |
| HOS (Property) - Failing to have a record of duty status using the method prescribed Incomplete/Wrong Log · Hours-of-Service Compliance · code 3958A1HOSP | 1 | 1 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the Arizona column is the mix across all Arizona-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 19, 2024 – Oct 19, 2026
No reportable crashes in this period.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 4066781 |
|---|---|
| MC / docket | MC1544151 |
| Legal name | DOS MARIAS TRUCKING LLC |
| Operation | Interstate |
| Business type | — |
| Power units | 1 |
| Drivers | 1 |
| Annual mileage | 29,208 (2024) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Apr 25, 2023 · 3 years ago |
| Last MCS-150 update | Jul 23, 2025 |
Cargo carried
General FreightGrain, Feed, Hay
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about DOS MARIAS TRUCKING LLC
What does DOS MARIAS TRUCKING LLC's operating authority allow?
FMCSA records show no active operating authority for DOS MARIAS TRUCKING LLC (MC1544151), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about DOS MARIAS 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 DOS MARIAS TRUCKING LLC?
Confirm the authority and insurance on the Motus record for USDOT 4066781. Call the company back on the phone number on file, (520) 685-0622, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1544151, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Douglas, AZ →
Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-19 23:35 UTC.