Carrier profile · USDOT 2131933 · Updated Jun 13, 2026

ISC ACQUISITION CORP

DBA ISC BUILDING MATERIALS

17 power unitsavg 9.1 yrLocal · 1 statesHOUSTON, TX94/100
AUTHORITY STATUS UNKNOWN
Verified linksiscbm.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 7.7%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 12 vehicle and 13 driver inspections over 24 months.

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

0.0% · 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 33.6 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

12 inspections in the charted months · busiest month Oct '25 · 3

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.

Expected band
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.4 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 17-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
17
Inspections · 24 mo
13
Annualized
≈7 / yr
Coverage
≈0.4 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

Unsafe Driving
0violations
clean · per-BASIC
Hours-of-Service
0violations
clean · per-BASIC
82%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
71%
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 Maintenance13 · 1 OOS
  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving9 · 1 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance7 · 0 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance6 · 0 OOS
  • 393.78 Windshield wipersVehicle Maintenance5 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance4 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance4 · 0 OOS
  • 390.21 USDOT number marking on vehicleUnsafe Driving3 · 0 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance2 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance2 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 22 inspections — a clean logging history.

Crash history· 14 total · 0 in 24 mo

14
Total crashes
0
In last 24 mo
0
Fatal
8
Injury
YearCrashesFatalInjuryTow
20241001
20231001
20221011
20214034
20201001
20191011
20152002
20142022
20111011
DateStateFatalitiesInjuriesTow-away
Apr 2, 2024TX00Yes
Sep 1, 2023TX00Yes
May 2, 2022TX01Yes
Dec 20, 2021TX02Yes
Apr 14, 2021TX02Yes
Feb 25, 2021TX00Yes
Jan 12, 2021TX01Yes
May 21, 2020TX00Yes
Apr 4, 2019TX03Yes
Jul 1, 2015TX00Yes
Feb 13, 2015TX00Yes
Apr 24, 2014TX01Yes
Mar 18, 2014TX01Yes
Aug 22, 2011TX01Yes