HaulerCheck · https://haulercheck.com/carrier/3807444-jennifer-etoile-rios-diaz/ · Checked 2026-10-20 09:10 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
JENNIFER ETOILE RIOS-DIAZ
Doing business as DIAZ TRANSPORT
No risk signals in the last-known data
How risk signals workNothing in the FMCSA record matched our risk signals. That is not a guarantee, and it does not confirm who you are talking to; follow the checks below. Authority and insurance are last known from May 14, 2026.
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, (619) 608-1402, not a number from an email or load board.
- Check that the MC number you were given is MC1375681.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
Liability (BI&PD) pays for injury and damage to other people and property; it does not cover the freight. Cargo insurance covers the freight. FMCSA only requires cargo filings from household goods carriers and freight forwarders, so most carriers file none: ask for a cargo certificate that fits your load. No cargo cover filed with FMCSA.
| Type | Docket | Layer | Insurer | Coverage | Effective | Status |
|---|---|---|---|---|---|---|
| Liability (BI&PD) | MC1375681 | Primary | UNITED FINANCIAL CASUALTY COMPANY Policy CA955602006 · 91X | $750,000 | Jun 11, 2025 | Active |
Insurance that ended since 2024 · 1 policy
| Ended | Type | Insurer | Effective | How it ended |
|---|---|---|---|---|
| May 19, 2025 | Liability (BI&PD) MC1375681 | UNITED FINANCIAL CASUALTY COMPANY Policy CA955602006 | Aug 25, 2022 | Name change |
"Replaced" means a new filing took over the day the old one ended. "Cancelled" means the insurer or the company ended the policy; if no replacement was filed in time, the company was uninsured with FMCSA in between.
Source: Last known · FMCSA snapshot May 14, 2026. Identical filings repeated in the FMCSA data are shown once; a filing listed under two dockets is one policy, not extra coverage. Coverage is the maximum amount filed with FMCSA, not the full policy.
Last known filings. Insurance for this carrier comes from the FMCSA snapshot of May 14, 2026. Policies may have been cancelled or replaced since. Confirm current filings: Motus record ↗ and ask the insurer for a certificate naming you as holder.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
3 of 4 · Arizona avg 22.3%
1 of 4 · Arizona avg 4.5%
By quarter inspections and vehicle out-of-service rate
Bar height: inspections in the quarter. Percentage: vehicles put out of service, of vehicle inspections. The first and last quarters are partial.
Where it was inspected 3 states and provinces, 24 months
- AZ 2 50.0%
- CA 1 25.0%
- US 1 25.0%
Vehicles seen at inspections different VINs, 24 months
Power units: 3
1 other units · 1 straight trucks · 1 tractors
Ram/Dodge 4
1 power unit declared on the MCS-150. Inspections see only part of a fleet, so fewer here is normal; many more can mean the registration is out of date.
Trailers: 1
1 semi-trailers
Includes trailers the company pulled but does not own, such as shipper or leasing trailers.
4 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Jul 3, 2026 | AZ | 1 | 10 | Yes |
| Aug 8, 2025 | US | 2 | 3 | No |
| May 2, 2025 | CA | 1 | 2 | Yes |
| Jan 10, 2025 | AZ | 2 | 2 | Yes |
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 53,984 vehicle and 81,939 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
13 violations counted in FMCSA's Safety Measurement System (SMS), 6 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 17 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 | 11 | 5 | 84.6% | 75.7% |
| Hours-of-Service Compliance | 2 | 1 | 15.4% | 12.1% |
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 | 1 | 1 |
| Brake - Missing or inoperable breakaway braking system on a trailer(s) or converter dolly Brakes All Others · Vehicle Maintenance · code 39343DB | 1 | 1 |
| Brake - Breakaway not attached to the towing vehicle Brakes All Others · Vehicle Maintenance · code 39343DBMA | 1 | 1 |
| Coupling - Driveaway safety devices not attached/not able to be secured Coupling Devices · Vehicle Maintenance · code 39371H10CDDSDNS | 1 | 1 |
| Lighting - Tail lamp - Both Lamps on rearmost vehicle driveaway missing when required to be on. Lighting · Vehicle Maintenance · code 39317A1LRLDWR | 1 | 1 |
| Cargo - Damaged securement devices/tiedowns Securement Device · Vehicle Maintenance · code 393104BC | 1 | 1 |
| HOS (ELD) - ELD Form and Manner Other Log/Form & Manner · Hours-of-Service Compliance · code 39524 | 1 | 0 |
| Lighting - Clearance lamp(s) inoperative Clearance Identification Lamps/Other · Vehicle Maintenance · code 3939ALCL | 1 | 0 |
| Driver - Failed to conduct pre-trip inspection or make use of required parts and accessories Inspection Reports · Vehicle Maintenance · code 3927AD | 1 | 0 |
| Operating a CMV without documentation of a periodic inspection Inspection Reports · Vehicle Maintenance · code 39617CPI | 1 | 0 |
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 | 3807444 |
|---|---|
| MC / docket | MC1375681 |
| Legal name | JENNIFER ETOILE RIOS-DIAZ |
| DBA name | DIAZ TRANSPORT |
| Operation | Interstate |
| Business type | — |
| Power units | 1 |
| Drivers | 1 |
| Annual mileage | 50,000 (2025) |
| Hazmat | Yes |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Jan 26, 2022 · 4 years ago |
| Last MCS-150 update | Apr 15, 2026 |
| Email domain on file | @gmail.com (free email service) |
Equipment as declared on the MCS-150
| Owned | Term-leased | |
|---|---|---|
| Straight trucks | 1 | 0 |
| Trailers | 1 | 0 |
Term-leased equipment usually belongs to owner-operators driving under this company's authority.
Cargo carried
General FreightMotor Vehicles
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 JENNIFER ETOILE RIOS-DIAZ
What does JENNIFER ETOILE RIOS-DIAZ's operating authority allow?
MC1375681: Common carrier (may haul regulated property for hire for the general public).
Which information about JENNIFER ETOILE RIOS-DIAZ is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. Insurance filings are from the same May 14, 2026 snapshot. There are too few vehicle inspections in the last 24 months to judge the out-of-service rate. 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 JENNIFER ETOILE RIOS-DIAZ?
Confirm the authority and insurance on the Motus record for USDOT 3807444. Call the company back on the phone number on file, (619) 608-1402, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1375681, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in San Luis, 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 2026-10-20 09:10 UTC.