Carrier profile · USDOT 1676368 · MC-881277 · Updated Jul 18, 2026

Stevenson Weir Southern LLC

193 power unitsavg 6.5 yrLocal · 2 statesROCK HILL, SC94/100
CARRIER ACTIVEMC-881277 ACTIVE
Verified linksswscarolina.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 20.0%24-mo cumulative
050%nat'l 22.26%
Driver OOS 2.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 35 vehicle and 149 driver inspections over 24 months.

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

28.6% · 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 3.1 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

147 inspections in the charted months · busiest month Jan '26 · 17

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 193-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
193
Inspections · 24 mo
149
Annualized
≈75 / yr
Coverage
≈0.4 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

9%
Unsafe Driving
Vektor peer est.
Hours-of-Service
0violations
clean · per-BASIC
58%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
37%
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 Driving67 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance10 · 1 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance8 · 8 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance6 · 0 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance3 · 0 OOS
  • 393.78 Windshield wipersVehicle Maintenance3 · 0 OOS
  • 383.23 Operating without a valid CDLDriver Fitness2 · 2 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance2 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance2 · 0 OOS
  • 383.95 Commercial Driver's License (CDL)Driver Fitness1 · 1 OOS

ELD & hours-of-service

No hours-of-service or ELD violations on record across 199 inspections — a clean logging history.

Crash history· 48 total · 3 in 24 mo

48
Total crashes
3
In last 24 mo
0
Fatal
25
Injury
YearCrashesFatalInjuryTow
20253013
20242012
20239058
20225045
20211011
20202012
20195025
20183013
20172002
20164024
20152021
20142002
20132021
20121001
20113013
20091011
20081010
DateStateFatalitiesInjuriesTow-away
Sep 4, 2025NC00Yes
Aug 7, 2025NC00Yes
Jun 20, 2025NC01Yes
May 29, 2024NC00Yes
Mar 8, 2024NC01Yes
Dec 6, 2023NC01Yes
Nov 10, 2023NC00Yes
Oct 26, 2023NC01No
Oct 4, 2023NC01Yes
Oct 3, 2023SC04Yes
Sep 5, 2023SC00Yes
May 4, 2023SC00Yes
Mar 21, 2023SC00Yes
Jan 28, 2023NC01Yes
Oct 17, 2022SC05Yes
Sep 28, 2022NC01Yes
Aug 3, 2022SC01Yes
Jul 18, 2022NC02Yes
Jan 25, 2022SC00Yes
Jun 11, 2021NC01Yes
Dec 18, 2020NC00Yes
Oct 30, 2020SC01Yes
Dec 3, 2019NC01Yes
Nov 6, 2019NC00Yes
Jul 8, 2019SC00Yes