Preview 1,157,861 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 2026-09-22.

CARROLL W. DIEFENBACH DBA DIEFENBACH CONSTRUCTION

USDOT 2900800
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
1
Trucks
1
Buses
0
Drivers
1
Drivers holding a CDL
1
What they run
Cargo authorised to carry
Operating range
Intrastate, within 100 miles
Carrier operation
Intrastate, non-hazardous materials
Operation classification
PRIVATE PROPERTY;AUTHORIZED FOR HIRE
Registration
First on file
2016-06-15
Carrier last updated its record
2016-06-15
City
NEW COLUMBIA
State
PA
ZIP
17856-9206

More carriers in New Columbia, PA

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