Fleet typeIdentity
Asset-based
834 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 348981 · Updated Sep 6, 2026
W B Mason Co Inc
834 power unitsavg 3.3 yrNational · 21 statesBROCKTON, MA88/100
AUTHORITY STATUS UNKNOWNRATED CONDITIONALHAZMAT
Observed fleet · trailing 24 mo daily
834Power units
300 observed · MCS-150
41Trailers seen
Decoded · vPIC
3.3Avg age (yr)
2001–2026 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · Sep 6, 2026
Clear to load
Clear under the current scoring — review the flagged signal below before loading.
USDOT registration3737 yr registered
Authority not on fileInsurance (BIPD)— unknown
No filing on recordVehicle OOS · 24-mo11.1%
▼ 22.26% nat'lCrashes · fatal77
16 in 24 moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersNewer
3.3 yr
Model years 2001–2026 · peer benchmark unavailable.
Identity stabilityStable
37 yr unchanged
Same registration since 1989 — no chameleon / reincarnation signal.
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Verification summary
W B MASON CO INC (USDOT 348981) has a Vektor safety score of 88/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Sep 6, 2026.
The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Sep 6, 2026.
It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Sep 6, 2026.
Its vehicle out-of-service rate was 11.1% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Sep 6, 2026.
The carrier received 501 roadside inspections in the last 24 months — 289 vehicle-level and 501 driver-level — across 21 states, according to FMCSA roadside-inspection data refreshed Sep 6, 2026.
The carrier has 16 reportable crashes in the last 24 months and 7 fatal crashes across the full FMCSA crash record available as of Sep 6, 2026.
It reports 834 power units and 898 drivers in its most recent MCS-150 filing dated Dec 11, 2025.
It has an FMCSA safety rating of Conditional assigned Oct 13, 1993 in the federal record refreshed Sep 6, 2026.
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Frequently asked
What is W B MASON CO INC's USDOT number?
W B MASON CO INC's USDOT number is 348981.
Is W B MASON CO INC authorized to operate?
As of Sep 6, 2026, W B MASON CO INC is active in the FMCSA register.
What is W B MASON CO INC's safety record?
W B MASON CO INC has a 11.1% vehicle out-of-service rate (national average 22.26%) across 789 roadside inspections, with 16 reportable crashes in the last 24 months, and an FMCSA "Conditional" safety rating. Vektor's computed risk score is 88/100 (tier: clear).
How big is W B MASON CO INC's fleet?
W B MASON CO INC operates 834 power units and 898 drivers per its most recent MCS-150 filing.
Where is W B MASON CO INC based?
W B MASON CO INC is based in BROCKTON, MA, with roadside inspections recorded across 21 states.
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