Preview 682,030 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 2026-09-21.

RONALD B MASON

Doing business as MASON MECHANICAL SERVICES LLC

USDOT 2019948
MC docket MC-1635726
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 Yes
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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.

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Carrier details
Fleet and drivers
Power units
2
Trucks
2
Buses
0
Drivers
2
Drivers holding a CDL
1
What they run
Cargo authorised to carry
Operating range
Interstate, within 100 miles
Carrier operation
Interstate
Operation classification
PRIVATE PROPERTY;AUTHORIZED FOR HIRE
Annual mileage reported
52,010
Mileage year
2025
Registration
First on file
2010-04-13
Carrier last updated its record
2025-09-03
City
JEFFERSON
State
MD
ZIP
21755

More carriers in Jefferson, MD

Data as of 2026-09-21 · The official FMCSA record · About this data