Carrier profile · USDOT 714498 · MC-334694 · Updated Jun 13, 2026

JOHN E QUARLES CO

DBA QUARLES LUMBER

9 power unitsavg 13.3 yrLocal · 1 statesFORT WORTH, TX94/100
CARRIER ACTIVEMC-334694 ACTIVE
Verified linksquarleslumber.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 8.3%24-mo cumulative
050%nat'l 22.26%
Driver OOS 0.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 12 vehicle and 12 driver inspections over 24 months.

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

16.7% · latest 6-mo window▼ Falling

Share of vehicle-level roadside inspections in each trailing six-month window that resulted in a vehicle out-of-service order. Trending down 9.4 pts across the window. The national vehicle benchmark uses the same metric and is shown on the chart.

Roadside inspection history· 24-mo monthly · vehicle / driver level · any-OOS overlay

10 inspections · 24 mo · busiest month Oct '24 · 2

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections over 24 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.

Expected band
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.7 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 9-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
9
Inspections · 24 mo
12
Annualized
≈6 / yr
Coverage
≈0.7 inspections / unit · yr

BASIC categories· CSA SMS · 2026-07-01

5%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
75%
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 Maintenance11 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance5 · 0 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving4 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance4 · 1 OOS
  • 396.5 Oil and/or grease leakVehicle Maintenance3 · 1 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance3 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance3 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance2 · 0 OOS
  • 393.60 Windshield / glazingVehicle Maintenance2 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance2 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 18 inspections — a clean logging history.

Crash history· 11 total · 2 in 24 mo

11
Total crashes
2
In last 24 mo
0
Fatal
3
Injury
YearCrashesFatalInjuryTow
20261001
20241011
20131001
20121001
20111001
20081011
20071001
20041010
20031001
20021001
19991001
DateStateFatalitiesInjuriesTow-away
Apr 1, 2026TX00Yes
Oct 16, 2024TX01Yes
Jun 7, 2013TX00Yes
Oct 24, 2012TX00Yes
Apr 4, 2011TX00Yes
Jul 14, 2008TX03Yes
Dec 4, 2007TX00Yes
Apr 28, 2004TX01No
Oct 17, 2003TX00Yes
Feb 25, 2002TX00Yes
May 17, 1999TX00Yes