Preview 1,215,067 motor carriers — every carrier FMCSA lists as active with at least one power unit, plus carriers whose registration went inactive within the last three years (inferred from MCS-150 filing dates). The full load is in progress, so this is how far it has got. Sourced from the FMCSA Motor Carrier Census. Data as of 2026-09-23.

SHAMROCK MATERIALS INC

Doing business as SHAMROCK MATERIALS OF COTATI

USDOT 2644567
USDOT registration Active

Operating authority — FMCSA publishes no current status for this carrier. See FMCSA’s record.

Safety rating Not rated no compliance review on file
Hazardous materials No
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Insurance and operating authority

Required and on-file BI&PD liability amounts, cargo and surety bond filings, and the operating authorities this carrier holds.

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No roadside inspections or annual mileage on file, which is not enough data to compare with other carriers. That is normal for a small or recently registered carrier.

Why some carriers have no inspection history

Carrier details
Fleet and drivers
Power units
65
Trucks
65
Buses
0
Drivers
28
Drivers holding a CDL
0
What they run
Cargo authorised to carry
  • Other
Operating range
Intrastate, beyond 100 miles
Carrier operation
Intrastate, non-hazardous materials
Operation classification
AUTHORIZED FOR HIRE
Registration
First on file
2015-06-12
City
PETALUMA
State
CA
ZIP
949758044

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Data as of 2026-09-22 · The official FMCSA record · About this data