Fleet typeIdentity
Asset-based
15 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 227340 · MC-407667 · Updated Sep 6, 2026
William N Mason Inc
15 power unitsavg 16.4 yrRegional · 5 statesBALTIMORE, MD87/100
CARRIER ACTIVEMC-407667 ACTIVERATED SATISFACTORYHAZMAT
Observed fleet · trailing 24 mo daily
15Power units
8 observed · MCS-150
12Trailers seen
Decoded · vPIC
16.4Avg age (yr)
1997–2026 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · Sep 6, 2026
Clear to load
Active authority and a clean federal record. No blocking issues found.
Watch · 2
USDOT registration4343 yr registered
Active for-hireInsurance (BIPD)$750K in force
FMCSA L&IVehicle OOS · 24-mo28.6%
▲ 22.26% nat'lCrashes · fatal00
2 in 24 moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersOlder
16.4 yr
Model years 1997–2026 · peer benchmark unavailable.
Identity stabilityStable
43 yr unchanged
Same registration since 1983 — no chameleon / reincarnation signal.
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Verification summary
WILLIAM N MASON INC (USDOT 227340) has a Vektor safety score of 87/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Sep 6, 2026.
The carrier holds active contract for-hire operating authority per FMCSA L&I as of Sep 6, 2026.
It has an active BIPD insurance filing with a $750,000 limit in force from SENTRY SELECT INSURANCE COMPANY effective Mar 1, 2023 in FMCSA L&I's current snapshot as of Sep 6, 2026.
Its vehicle out-of-service rate was 28.6% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Sep 6, 2026.
The carrier received 21 roadside inspections in the last 24 months — 14 vehicle-level and 21 driver-level — across 5 states, according to FMCSA roadside-inspection data refreshed Sep 6, 2026.
The carrier has 2 reportable crashes in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Sep 6, 2026.
It reports 15 power units and 11 drivers in its most recent MCS-150 filing dated May 6, 2026.
It has an FMCSA safety rating of Satisfactory assigned Nov 2, 2002 in the federal record refreshed Sep 6, 2026.
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Frequently asked
What is WILLIAM N MASON INC's USDOT number?
WILLIAM N MASON INC's USDOT number is 227340, and its motor carrier number is MC-407667.
Is WILLIAM N MASON INC authorized to operate?
As of Sep 6, 2026, WILLIAM N MASON INC is active in the FMCSA register with common, contract, broker operating authority on file.
What is WILLIAM N MASON INC's safety record?
WILLIAM N MASON INC has a 28.6% vehicle out-of-service rate (national average 22.26%) across 27 roadside inspections, with 2 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 87/100 (tier: clear).
How big is WILLIAM N MASON INC's fleet?
WILLIAM N MASON INC operates 15 power units and 11 drivers per its most recent MCS-150 filing.
Where is WILLIAM N MASON INC based?
WILLIAM N MASON INC is based in BALTIMORE, MD, with roadside inspections recorded across 5 states.
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