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Motor carrier · USDOT 4431703

GUILLERMO PEREZ DIAZ, Los Angeles, CA: USDOT 4431703 safety record, inspections, out-of-service, crashes

GUILLERMO PEREZ DIAZ among Los Angeles County carriers

By power units, GUILLERMO PEREZ DIAZ is number 15,189 of 69,261 Los Angeles County carriers, level with 54,072 that also file 1; the county’s middle fleet is 1 power unit.

GUILLERMO PEREZ DIAZ, USDOT 4431703, MCS-150 filed June 30, 2025: 1 power unit (1 truck), 1 driver (0 with a CDL); Los Angeles, CA 90031, Los Angeles County; active on the census; Intrastate Non-Hazmat Carriers; no hazardous materials; not rated by FMCSA; hauls Building Materials, Utility, Other, Construction; registered June 30, 2025.

Los Angeles County carriers nearest GUILLERMO PEREZ DIAZ in fleet size

Roadside inspections

Velarion’s copy of the inspection file holds no inspection for USDOT 4431703.

Crashes

Velarion’s copy of the crash file holds no crash for USDOT 4431703.

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Nearby on the register

Figures from the FMCSA Company Census File, loaded October 15, 2026, and FMCSA’s inspection and crash files.

How this page was built: FMCSA Company Census File, read October 15, 2026.

What this page shows

Of all 179,736 California carriers with 1 power unit, including this one, 91.2% entered the federal listing before GUILLERMO PEREZ DIAZ. Los Angeles County has 54,073 carriers with 1 power unit, GUILLERMO PEREZ DIAZ among them.