Carrier profile · USDOT 496152 · MC-462647 · Updated Jun 13, 2026

H I Stone & Son Inc

61 power unitsavg 8.1 yrRegional · 3 statesSOUTHBURY, CT68/100
CARRIER ACTIVEMC-462647 ACTIVERATED SATISFACTORYHAZMAT
Verified linkshistoneson.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 36.8%24-mo cumulative
050%nat'l 22.26%
Driver OOS 9.1%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 19 vehicle and 33 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 32.7 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

30 inspections in the charted months · busiest month Dec '24 · 4

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
≈0.3 / unit·yr
thin signalabundant signal
Few roadside inspections for a 61-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
61
Inspections · 24 mo
33
Annualized
≈17 / yr
Coverage
≈0.3 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

32%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
94%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
83%
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 Driving45 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance28 · 4 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance13 · 1 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance9 · 5 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance9 · 0 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance5 · 5 OOS
  • 392.16 Failure to use seat beltUnsafe Driving4 · 0 OOS
  • 393.55 Antilock brake system (ABS)Vehicle Maintenance4 · 0 OOS
  • 383.23 Operating without a valid CDLDriver Fitness4 · 4 OOS
  • 393.48 Brakes inoperativeVehicle Maintenance3 · 0 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 61 inspections — a clean logging history.

Crash history· 54 total · 4 in 24 mo

54
Total crashes
4
In last 24 mo
1
Fatal
14
Injury
YearCrashesFatalInjuryTow
20261001
20253013
20236035
20229019
20204004
20191001
20186035
20173023
20163113
20142002
20121001
20103003
20082012
20072002
20052002
20041001
20032012
20021001
20011001
20001011
DateStateFatalitiesInjuriesTow-away
Jan 22, 2026CT00Yes
Dec 26, 2025CT01Yes
Dec 4, 2025CT00Yes
Jul 3, 2025CT00Yes
Dec 11, 2023CT01No
Jul 17, 2023CT01Yes
Jul 17, 2023CT00Yes
Jul 17, 2023CT00Yes
Feb 28, 2023CT00Yes
Jan 31, 2023CT01Yes
Oct 11, 2022CT00Yes
Jun 14, 2022CT00Yes
Jun 7, 2022CT02Yes
May 26, 2022CT00Yes
Apr 25, 2022CT00Yes
Apr 15, 2022CT00Yes
Mar 24, 2022MA00Yes
Mar 17, 2022CT00Yes
Feb 14, 2022CT00Yes
May 22, 2020CT00Yes
May 21, 2020CT00Yes
Feb 24, 2020CT00Yes
Feb 20, 2020NJ00Yes
Aug 19, 2019CT00Yes
Dec 24, 2018NY01Yes