HaulerCheck · https://haulercheck.com/carrier/1386399-diaz-and-sons-transportation-inc/ · Checked 2026-10-20 06:51 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
DIAZ AND SONS TRANSPORTATION INC
Doing business as DIAZ & SONS TRANSPORTATION INC
Do not book until these are resolved · 1 signal
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.
- Registration (MCS-150) last updated 4 years agoFleet size and contact details on the registration may be out of date.
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, (925) 943-6765, not a number from an email or load board.
- Check that the MC number you were given is MC528036.
- 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
0 of 7 · California avg 19.8%
0 of 9 · California avg 6.3%
9 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Sep 3, 2026 | CA | 1 | 0 | No |
| Apr 30, 2026 | CA | 1 | 0 | No |
| Jan 30, 2026 | CA | 1 | 0 | No |
| Oct 28, 2025 | CA | 1 | 0 | No |
| Aug 8, 2025 | CA | 2 | 0 | No |
| May 19, 2025 | CA | 1 | 0 | No |
| Jan 15, 2025 | CA | 3 | 0 | No |
| Nov 21, 2024 | CA | 1 | 0 | No |
| Nov 5, 2024 | CA | 3 | 0 | 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 California average covers 398,742 vehicle and 510,354 driver inspections of all California-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
No violations recorded in roadside inspections in the last 24 months.
Crashes Oct 19, 2024 – Oct 19, 2026
No reportable crashes in this period.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 1386399 |
|---|---|
| MC / docket | MC528036 |
| Legal name | DIAZ AND SONS TRANSPORTATION INC |
| DBA name | DIAZ & SONS TRANSPORTATION INC |
| Operation | Intrastate (Non-Hazmat) |
| Business type | — |
| Power units | 1 |
| Drivers | 1 |
| Annual mileage | 64,274 (2021) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Jun 21, 2005 · 21 years ago |
| Last MCS-150 update | Aug 5, 2022 |
Cargo carried
General FreightHousehold GoodsMetal: Sheets, Coils, RollsLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsFresh ProduceMeatGarbage/RefuseU.S. MailCommodities Dry BulkRefrigerated FoodBeveragesPaper ProductsUtilitiesAgricultural/Farm SuppliesConstructionWater Well
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 DIAZ AND SONS TRANSPORTATION INC
What does DIAZ AND SONS TRANSPORTATION INC's operating authority allow?
FMCSA records show no active operating authority for DIAZ AND SONS TRANSPORTATION INC (MC528036), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about DIAZ AND SONS TRANSPORTATION INC 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. The MCS-150 was last updated Aug 5, 2022, so fleet size and contact details may be out of date.
What should I verify before booking DIAZ AND SONS TRANSPORTATION INC?
Confirm the authority and insurance on the Motus record for USDOT 1386399. Call the company back on the phone number on file, (925) 943-6765, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC528036, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other companies using (925) 943-6765
A shared number is common for related companies, dispatch services and family businesses. It is not proof of fraud, but it is worth knowing which company you are dealing with.
1 company
| Company | Location | USDOT | Docket | Trucks | Authority |
|---|---|---|---|---|---|
| MICHAEL DIAZ High risk Carrier · DBA ARY LOGISTICS |
Walnut Creek, CA | 2238580 | MC594846 | 0 | Inactive Last known · May 14, 2026 |
Other trucking companies in Walnut Creek, CA →
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 06:51 UTC.