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Freight Carrier/shipper · Baltimore, MD

WILLIAM N MASON INC

3510 WILKENS AVE · Baltimore, MD 21229

AUTHORIZED FOR:
(410) 525-2288 Tap to call
  • MC #407667
  • USDOT #227340 USDOT Active
  • 15
    Power Units
  • 11
    Drivers
  • Carrier/shipper
    Entity Type

About this carrier

WILLIAM N MASON INC is a Baltimore, MD freight carrier/shipper that is authorized for: in the state of Maryland. This company has 15 truck(s) in their fleet and 11 truck drivers. Their motor carrier number is MC-407667 and their USDOT number is 227340.

Sourced from FMCSA SAFER · last filed 05/06/2026 · last updated Oct 22, 2026.

Carrier Details

  • Operating Status AUTHORIZED FOR:
  • MCS-150 Filed 05/06/2026
  • MCS-150 Mileage 278,770 (2024)

Authority & Operations

Operation Classification
  • Authorized for Hire
Carrier Operation
  • Interstate

Cargo Authorized

  • General Freight
  • Machinery, Large Objects
  • Construction

Operating Territory

Map of states where this carrier has roadside inspections Maryland — 14 inspections (past 24 months) Maryland — 14 inspections (past 24 months) Virginia — 4 inspections (past 24 months) Pennsylvania — 1 inspection (past 24 months) Texas — 1 inspection (past 24 months) Texas — 1 inspection (past 24 months) Connecticut — 1 inspection (past 24 months)

Inspection activity   Inspected in 5 states over the past 24 months: MD (14), VA (4), PA (1), TX (1), CT (1). Home base: Baltimore, Maryland.

Safety Record

5 Severe Violations Updated Oct 15, 2026

Crashes (24 mo)

  • 0
    Fatal
  • 0
    Injury
  • 2
    Tow
  • 2
    Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 2.4 3 Crash Indicator Not Public — Hours of Service 0.7 2 Vehicle Maintenance 9.13 10 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0 0

Inspection Summary

  • 21
    Total
  • 9
    Clean
  • 12
    With violations

24-month window ending Sep 25, 2026

Violations Cited 29 unique codes

Critical 9

  • 393.75(a)(2)Tire-tread and/or sidewall separation1× SW 8
  • 393.207A-STCBSuspension - Suspension connecting rod or tracking component assembly (including spring leaves used as a suspension connecting rod) or any part used for attaching the same to the vehicle frame or axle is cracked, loose, broken or missing1× OOS×1 SW 7
  • 393.207A-STBWSuspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component can be moved by hand along the axis of the component1× OOS×1 SW 7
  • 395.8A-ELDELD - No record of duty status (ELD Required)1× OOS×1 SW 5
  • 396.3A1-BARSAir Brake - Air reservoir separated from its original attachment points or moving more than 1 inch1× OOS×1 SW 4
  • 393.47A-BCLMBD-SADrum Brake - Cracked/loose/missing lining/pad on a steering axle1× OOS×1 SW 4
  • 393.106D-CCargo - Insufficient aggregate working load limit for cargo transported1× OOS×1 SW 3
  • 392.9A2-CCargo - Vehicle components or dunnage not secured1× OOS×1 SW 1
  • 396.3(a)1BOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination1× OOS×1 SW 0

Unsafe Driving 3

  • 392.16ADDriver - Failed to use seat belt while operating a CMV.1× SW 7
  • 392.16-DDriver - Failed to use seat belt while operating a CMV1× SW 7
  • 392.2-SLLTCDState/Local Laws - Failed to obey a traffic control device - Permanent or Temporary - e.g., safety official, signal, sign, light, lane marking, other1× SW 5

Vehicle Maintenance 16

  • 393.9A-LFTSILighting - Front - Turn signal - inoperative2× SW 6
  • 393.9B-LRLOLighting - Tail lamp - Any obstructed.1× SW 6
  • 393.9A-LHWSLighting - Hazard warning signal(s) inoperative1× SW 6
  • 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured2× SW 4
  • 393.47(e)Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt2× SW 4
  • 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear2× SW 4
  • 396.3A1-BALACBrake - Audible air leak from a brake chamber1× SW 4
  • 393.48A-BIBDDrum Brake - Inoperative other than a steering axle1× SW 4
  • 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 19981× SW 4
  • 393.47A-BCLMBDDrum Brake - Cracked/loose/missing lining/pad1× SW 4
  • 393.45D-BAir Brake - Audible air leak at a proper connection1× SW 4
  • 396.5B-LLubrication - Oil or grease leak2× SW 3
  • 393.81-HHorn - Inoperative or defective1× SW 3
  • 393.9A-LLPLLighting - License plate lamp inoperative1× SW 2
  • 393.9A-LSMLLighting - Side marker lamp(s) inoperative1× SW 2
  • 393.78A-WSWashers - Inoperative washing system.1× SW 1

Hours of Service 1

  • 395.8(a)HOS (Form) - Paper Log/Logging Programs Form and Manner1× SW 1

Locations

Physical Address
WILLIAM N MASON INC
3510 WILKENS AVE
BALTIMORE, MD 21229
Mailing Address
Same as physical.

Location on Map

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