GUILLERMO FIERRO BARRERAS
AUTHORIZEDDBA: GFB TRANSPORT
USDOT
4227733
MC Number
79738459
Fleet Size
1
Total Drivers
4
FMCSA-derived snapshot updated: October 11, 2026. This is not a real-time record; verify critical authority, insurance and safety details directly with FMCSA.
Broker verification report
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Safety overview
GUILLERMO FIERRO BARRERAS is a small interstate motor carrier based in HAYWARD, California, operating 1 power unit with 4 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. Their driver out-of-service rate of 11.1% runs above the national average of 6.7%. The current imported FMCSA crash snapshot returned no matching crash rows for this carrier; this is not proof that no crash occurred. FMCSA records show 9 inspections for this carrier.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in California is 9.3% and the average vehicle OOS rate is 22.8% across 324,330 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
9
Total
64%
Driver %
Insurance on file
Liability (BIPD)
MS Transverse Specialty Insurance Company — eff. Sep 9, 2026
Cargo
Not on file
Surety Bond
Not on file
Trust Fund
Not on file
Source: FMCSA Motus. Imported Oct 12, 2026. Verify current filings directly with FMCSA before relying on them.
Crash history
0
Total Crashes
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Frequently asked questions
Is GUILLERMO FIERRO BARRERAS authorized to operate?
CarrierOwl's FMCSA-derived snapshot for GUILLERMO FIERRO BARRERAS (USDOT #4227733) shows "AUTHORIZED" status. The snapshot lists them as an interstate carrier. Verify the current official record with FMCSA before booking a load.
What is GUILLERMO FIERRO BARRERAS's safety record?
GUILLERMO FIERRO BARRERAS has 9 inspections in CarrierOwl's current imported snapshot; the snapshot returned no matching crash rows. They do not show a formal FMCSA safety rating in CarrierOwl's current data. A zero result is limited to the dataset and snapshot window. Verify current BASIC percentiles and crash information directly with FMCSA before relying on them.
How many trucks does GUILLERMO FIERRO BARRERAS operate?
GUILLERMO FIERRO BARRERAS operates 1 power unit with 4 drivers on file. That makes them a small carrier.
Does GUILLERMO FIERRO BARRERAS transport hazardous materials?
No. GUILLERMO FIERRO BARRERAS does not have a hazardous materials flag in the FMCSA database.
Where is GUILLERMO FIERRO BARRERAS located?
GUILLERMO FIERRO BARRERAS is based in HAYWARD, California at 26877 TYRRELL AVE, 94544. Phone: (510) 692-8830.
What are GUILLERMO FIERRO BARRERAS's out-of-service rates?
GUILLERMO FIERRO BARRERAS's driver out-of-service rate is 11.1%, compared with the 6.7% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record. Their vehicle out-of-service rate is 0.0%, compared with the 23.4% reference shown by FMCSA SMS when checked August 4, 2026. Interpret the difference with inspection volume and verify the current FMCSA record.