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DIAZ TRANS LLC
La Habra, CA
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating and crash records checked
FMCSA status: Active & Authorized · DOT 4034853 · MC 1525370
Active
Authority Active
No Safety Rating
Active 3 yrs, 4 mo
Broker Vetting Summary
Key signals from current FMCSA records
Authority
Active
MC-1525370 · Common carrier
Insurance
On File
$1,000,000 BIPD
Safety
Not Rated
2 inspections on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Operating authority active for 3 yrs, 4 mo
- Insurance on file: $1,000,000
- Vehicle out-of-service rate 50.0% — above the 20.7% national average
- 2 FMCSA inspections on record
Authority & Compliance
Authority, insurance and required filings
Operating Authority
MC1525370
Common Carrier
Insurance on File
CONCERT SPECIALTY INSURANCE COMPANY
BI&PD · $1,000,000 · Policy CS AUR 100000001-02
UNITED SPECIALTY INSURANCE COMPANY
BI&PD · $4,000,000 · Policy NKM-1015-26
Required Filings
Liability (BIPD)
$5,000,000
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
4034853
MC Number
MC-1525370
Operating Status
Active
Safety Rating
Not Rated
MCS-150 Filed
April 16, 2025
FMCSA Registration
February 27, 2023
Authority Granted
April 20, 2023
Annual Mileage
98,000 mi (2024)
Contact Information
Location
La Habra, CA
Email
Safety & Performance
Inspections, violations and crash history
Safety & Inspection Summary
Total Inspections
2
Driver Inspections
Vehicle Inspections
2
Total OOS Orders
1
Violations by Category
Vehicle Maintenance1
Unsafe Driving1
Hours of Service0
OOS Rates vs. National Average
Vehicle OOS Rate50.0% · national avg 20.7%
⚠ Above national average (29.3pp higher)
Inspection Trend by Year
2025
Inspection Records (2)
| Date | State | Level | Vehicle | Viol. | Status |
|---|---|---|---|---|---|
| July 30, 2025 | AZ | Level II — Walk-Around | PETERBILT · 1XPXDP9X1MD741704 | 0 | Clean |
| June 30, 2025 | CA | Level II — Walk-Around | PTRB · 1XPXDP9X1MD741704 | 2 | 1 OOS |
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
AZ1
CA1
Fleet & Equipment (3)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~1
of 1 reported to FMCSA
Trailers
~2
seen at inspection
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 2021 Peterbilt 389 | Tractor · Class 8 | 1XPXDP9X1MD741704 | 2 | 1 |
| 1997 Polar Tank Trailer | Tank · 43 ft | 1PMS34324V1018311 | 1 | — |
| 2013 Bulk Tank International | Tank | 3B9TS71E6DG007148 | 1 | 1 |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
History & Filings
Authority, insurance and process-agent records
Authority History
| Date | Status | Type |
|---|---|---|
| March 26, 2024 | INVOLUNTARY REVOCATION | Common |
| April 20, 2023 | GRANTED | Common Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| March 27, 2026 | BI&PD Primary/Excess | On file |
| March 27, 2026 | BI&PD Primary/Excess | On file |
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Data sourced from FMCSA MCMIS via Socrata. Last updated: September 7, 2026.
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