Carrier profile · USDOT 856144 · MC-377397 · Updated Jul 19, 2026

S T BROS INC

31 power unitsavg 4.5 yrRegional · 6 statesFRESNO, CA94/100
CARRIER ACTIVEMC-377397 ACTIVE
Verified linksstbros.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 9.3%24-mo cumulative
050%nat'l 22.26%
Driver OOS 3.2%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 43 vehicle and 62 driver inspections over 24 months.

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

0.0% · 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 2.2 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

61 inspections in the charted months · busiest month Jan '26 · 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
≈1.0 / unit·yr
thin signalabundant signal
Within the expected band for a 31-unit fleet — FMCSA has inspected this carrier often enough that the out-of-service and violation signals above are statistically trustworthy.
Registered power units
31
Inspections · 24 mo
62
Annualized
≈31 / yr
Coverage
≈1.0 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

66%
Unsafe Driving
Vektor peer est.
57%
Hours-of-Service
Vektor peer est.
14%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
19%
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.

  • 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving21 · 0 OOS
  • 395.24 ELD — record edits / dataHOS Compliance10 · 0 OOS
  • 395.8 Record of duty status (log / ELD) not current or missingHOS Compliance7 · 1 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance7 · 1 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance6 · 3 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance5 · 0 OOS
  • 393.53 Automatic brake adjusters / indicatorsVehicle Maintenance4 · 0 OOS
  • 396.5 Oil and/or grease leakVehicle Maintenance2 · 0 OOS
  • 395.22 ELD — provider/registration/malfunctionHOS Compliance2 · 0 OOS
  • 395.3 Driving beyond hours-of-service limitsHOS Compliance2 · 0 OOS

ELD & hours-of-service

24 hours-of-service / ELD violations on record · most recent May 19, 2026. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

14ELD device issues
0No log / no ELD
3False logs
2Drove over hours

Trending worse — 79% of ELD violations are in the last 24 months. Falsified-log violations are a serious integrity flag.

Crash history· 10 total · 2 in 24 mo

10
Total crashes
2
In last 24 mo
0
Fatal
3
Injury
YearCrashesFatalInjuryTow
20252002
20241001
20231001
20222012
20161001
20111001
20071011
20061011
DateStateFatalitiesInjuriesTow-away
Aug 26, 2025NM00Yes
Apr 9, 2025CA00Yes
Mar 12, 2024NM00Yes
Aug 20, 2023CA00Yes
Jun 29, 2022CA00Yes
Jan 26, 2022AZ01Yes
Mar 29, 2016AZ00Yes
Sep 13, 2011CA00Yes
Sep 21, 2007CA03Yes
May 12, 2006LA01Yes