Carrier profile · USDOT 58791 · MC-252916 · Updated Jun 13, 2026

Shannon Bros Co Inc

40 power unitsavg 3.5 yrLocal · 1 statesTULARE, CA74/100
CARRIER ACTIVEMC-252916 ACTIVERATED SATISFACTORY
Verified linksshannonbros.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 40.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 33.3%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 5 vehicle and 6 driver inspections over 24 months.

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

50.0% · 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 16.7 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

4 inspections in the charted months · busiest month May '26 · 2

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.

Thin coverage
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.1 / unit·yr
thin signalabundant signal
Few roadside inspections for a 40-unit fleet — the out-of-service and violation signals above rest on a small sample, so weight them cautiously. Thin coverage on a young authority is itself a flag.
Registered power units
40
Inspections · 24 mo
6
Annualized
≈3 / yr
Coverage
≈0.1 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

1%
Unsafe Driving
Vektor peer est.
35%
Hours-of-Service
Vektor peer est.
Driver Fitness
0violations
clean · per-BASIC
Controlled Substances
0violations
clean · per-BASIC
28%
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 Driving5 · 1 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance3 · 1 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance1 · 1 OOS
  • 395.8 Record of duty status (log / ELD) not current or missingHOS Compliance1 · 1 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance1 · 1 OOS
  • 396.5 Oil and/or grease leakVehicle Maintenance1 · 0 OOS

ELD & hours-of-service

1 hours-of-service / ELD violation on record · most recent Aug 29, 2024. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

0ELD device issues
0No log / no ELD
1False logs
0Drove over hours

Crash history· 48 total · 0 in 24 mo

48
Total crashes
0
In last 24 mo
2
Fatal
13
Injury
YearCrashesFatalInjuryTow
20223023
20213023
20204004
20193113
20186016
20172002
20161001
20154014
20142022
20132002
20122002
20113013
20092122
20061011
20052002
20032002
20001001
19991001
19982002
19971001
19941001
DateStateFatalitiesInjuriesTow-away
Dec 22, 2022CA00Yes
May 28, 2022CA01Yes
May 26, 2022CA01Yes
Sep 27, 2021CA00Yes
Jul 26, 2021CA02Yes
Jan 20, 2021CA01Yes
Dec 19, 2020CA00Yes
Dec 18, 2020CA00Yes
Nov 29, 2020CA00Yes
Jun 10, 2020CA00Yes
Nov 26, 2019CA10Yes
May 11, 2019CA02Yes
Feb 5, 2019CA00Yes
Dec 13, 2018CA00Yes
Nov 25, 2018CA00Yes
Jul 29, 2018CA00Yes
Jul 8, 2018CA00Yes
Mar 11, 2018CA00Yes
Jan 26, 2018CA01Yes
Dec 30, 2017CA00Yes
Apr 19, 2017CA00Yes
Dec 27, 2016CA00Yes
Dec 16, 2015CA00Yes
May 15, 2015CA00Yes
Apr 28, 2015CA02Yes