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Carrier profile · USDOT 2019948 · MC-1635726 · Data as of Oct 7, 2026

Ronald B Mason

DBA Mason Mechanical Services LLC · Jefferson, MD · Interstate for-hire carrier · Since 2010
No authority on fileNot rated by FMCSAHazmat
Cargo carriedGeneral FreightHousehold GoodsMetal: Sheets, Coils, RollsMotor VehiclesDrive/Tow AwayLogs, Poles, Beams, Lumber+10 more
View on FMCSA SAFERCall (571) 233-2585
2
Power units
2
Drivers
0
Inspections · 24 mo
0
Crashes · 24 mo
52K
Annual miles
16 yr
Registered
90
/ 100
Clear to load

2 flags to check before loading

Marked for-hire but no carrier authority on file: Also registered as a private carrier; it may only haul its own goods. No roadside inspections in 24 months: Too little history to judge on-road safety.

How we scored it · 5 factors
Operating authority10/20
Insurance20/20
Out-of-service rates20/20
Crashes & rating20/20
Continuity & identity20/20

Composite of public FMCSA authority, insurance, inspection and crash records weighted against the national fleet. Decision support, not an official FMCSA safety rating.

Safety

FMCSA inspections & crashes · 24 mo · AS OF OCT 7, 2026

No roadside inspections or reportable crashes in the last 24 months, and not rated by FMCSA.

Enforcement

FMCSA closed cases

Closed enforcement cases — case numbers, violation codes and the amount settled — are available after you create a free account.

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Authority & insurance

FMCSA L&I · AS OF OCT 7, 2026

No operating authority (MC/FF docket) on file. Private and intrastate carriers don't need one; interstate for-hire carriers and brokers do.

Equipment

SELF-REPORTED ON MCS-150
2
Power units
2
Trucks
—
Tractors owned
2
Trailers owned
2
Drivers
1
CDL drivers
Registered to haul hazardous materials.

Operations & cargo

FMCSA CENSUS
InterstatePrivate PropertyAuthorized for Hire
Cargo carried
General FreightHousehold GoodsMetal: Sheets, Coils, RollsMotor VehiclesDrive/Tow AwayLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsLiquids/GasesLivestockGrain, Feed, HayGarbage/RefuseCommodities Dry BulkUtilitiesAgricultural/Farm SuppliesConstruction
Annual mileage
52,010 mi (2025)

Identity & federal record

FMCSA census · MCS-150
USDOT
2019948
MC / docket
MC-1635726
Legal name
Ronald B Mason
DBA
Mason Mechanical Services LLC
Entity type
Carrier
Operation
Interstate
First registered
Apr 13, 2010
Last MCS-150
Sep 3, 2025
Safety rating
Not rated
Drivers (CDL)
2 (1)
Hazmat
Yes
Business type
—

Fraud & network signals

For review, not a verdict.

No prior revocation
FMCSA shows no link to a previously revoked authority.
Unique phone number
Not shared with any other active USDOT.
Unique email address
Not shared with any other active USDOT.
Unique street address
Not shared with any other active USDOT.

Frequently asked

What is Ronald B Mason's USDOT number?

Ronald B Mason's USDOT number is 2019948 and its docket number is MC-1635726.

Is Ronald B Mason authorized to operate?

FMCSA does not show active operating authority on file. Verify on FMCSA SAFER before tendering freight.

What is Ronald B Mason's safety record?

No roadside inspections or reportable crashes in the last 24 months. Not rated by FMCSA.

How big is Ronald B Mason's fleet?

2 power units and 2 drivers per its MCS-150 filed Sep 3, 2025.

Where is Ronald B Mason located?

Ronald B Mason is located at 4538 Timbery Dr, Jefferson, MD, 21755. Phone: (571) 233-2585.

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Source: FMCSA public records via the U.S. DOT Open Data Portal. Carrier Search presents the federal record and computed signals for decision support only. It is not an FMCSA safety rating and not a recommendation to use or avoid any carrier. Verify authority and insurance before tendering.