Carrier profile · USDOT 573036 · MC-277792 · Updated Jun 13, 2026

Mason Trucking Co Inc

18 power unitsavg 12.5 yrLocal · 2 statesABERDEEN, WA86/100
CARRIER ACTIVEMC-277792 ACTIVERATED SATISFACTORYHAZMAT
Verified linksmasontruckingco.comFMCSA SAFER

Safety

Roadside out-of-service rates versus the national benchmark, inspection and crash trends, decoded violation themes, and ELD / hours-of-service integrity — the full safety picture behind the verdict.

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS 50.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 2.4%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 28 vehicle and 42 driver inspections over 24 months.

Vehicle OOS rate· vehicle OOS · vehicle-level inspections · 6-month trailing

50.0% · latest 6-mo window▲ Rising

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending up 27.6 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

40 inspections in the charted months · busiest month Oct '25 · 5

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

Inspection coverage· expected vs observed · the fraud signal

Inspection coverage

How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.

Well-monitored
Under-inspected
Expected
Well-monitored
Heavily inspected
≈1.2 / unit·yr
thin signalabundant signal
Within the expected band for a 18-unit fleet — FMCSA has inspected this carrier often enough that the out-of-service and violation signals above are statistically trustworthy.
Registered power units
18
Inspections · 24 mo
42
Annualized
≈21 / yr
Coverage
≈1.2 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

75%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
17%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
89%
Vehicle Maintenance
Vektor peer est.

Percentile = standing among same-exposure peers (higher = worse). FMCSA publishes percentiles for only some carriers (shown official); elsewhere we show a Vektor peer-percentile estimate, or the absolute SMS measure when there are too few inspections to rank.

Violation themes· decoded · grouped by BASIC

What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.

  • 393.9 Inoperative required lampsVehicle Maintenance25 · 4 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving19 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance10 · 2 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance9 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance7 · 0 OOS
  • 393.201 Parts & accessories (vehicle condition)Vehicle Maintenance5 · 5 OOS
  • 393.110 Cargo securement — number of tiedownsVehicle Maintenance5 · 5 OOS
  • 393.48 Brakes inoperativeVehicle Maintenance4 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance4 · 0 OOS
  • 392.9 Failure to secure load / cargo not securedUnsafe Driving4 · 4 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 64 inspections — a clean logging history.

Crash history· 8 total · 3 in 24 mo

8
Total crashes
3
In last 24 mo
0
Fatal
2
Injury
YearCrashesFatalInjuryTow
20253013
20241010
20211001
20091001
20001001
19991001
DateStateFatalitiesInjuriesTow-away
Sep 22, 2025WA00Yes
May 29, 2025WA01Yes
Apr 9, 2025WA00Yes
Jul 22, 2024WA01No
Oct 11, 2021WA00Yes
Dec 9, 2009WA00Yes
Feb 7, 2000WA00Yes
Dec 7, 1999WA00Yes