Carrier profile · USDOT 548304 · MC-270785 · Updated Jun 13, 2026

Southern Tank Transport Inc

137 power unitsavg 11.7 yrMulti-region · 13 statesHOLLY HILL, SC81/100
CARRIER ACTIVEMC-270785 ACTIVERATED SATISFACTORY
Verified linkssotank.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 30.9%24-mo cumulative
050%nat'l 22.26%
Driver OOS 1.0%24-mo cumulative
030%nat'l 6.67%

Every inspection in the window pooled — 81 vehicle and 192 driver inspections over 24 months.

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

23.1% · 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 4.1 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

189 inspections in the charted months · busiest month May '26 · 15

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
≈0.7 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 137-unit fleet — enough signal to read the safety record, though not a heavy sample.
Registered power units
137
Inspections · 24 mo
194
Annualized
≈97 / yr
Coverage
≈0.7 inspections / unit · yr

BASIC categories· CSA SMS · Aug 2026

51%
Unsafe Driving
Vektor peer est.
62%
Hours-of-Service
Vektor peer est.
16%
Driver Fitness
Vektor peer est.
Controlled Substances
0violations
clean · per-BASIC
76%
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 Driving179 · 0 OOS
  • 393.9 Inoperative required lampsVehicle Maintenance101 · 23 OOS
  • 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance36 · 26 OOS
  • 393.45 Brake tubing / hose defectsVehicle Maintenance34 · 8 OOS
  • 393.11 Required lamps/reflectors missingVehicle Maintenance31 · 0 OOS
  • 396.17 Periodic (annual) inspectionVehicle Maintenance30 · 0 OOS
  • 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance19 · 0 OOS
  • 393.47 Brake actuators / linings / componentsVehicle Maintenance18 · 0 OOS
  • 396.3 Inspection / repair / maintenance not performedVehicle Maintenance17 · 9 OOS
  • 393.78 Windshield wipersVehicle Maintenance17 · 0 OOS

ELD & hours-of-service

46 hours-of-service / ELD violations on record · most recent May 7, 2026. FMCSA does not publish the ELD device brand; these are the carrier's logging-compliance signals.

24ELD device issues
2No log / no ELD
5False logs
12Drove over hours

Trending worse — 71% of ELD violations are in the last 24 months. Falsified-log violations are a serious integrity flag.

Crash history· 336 total · 13 in 24 mo

336
Total crashes
13
In last 24 mo
10
Fatal
164
Injury
YearCrashesFatalInjuryTow
20264023
20256026
20244004
20237027
2022111511
202110039
2020110511
2019100410
2018180916
20179059
2016100310
2015110610
20149078
2013150714
20127035
2011100610
201012178
20098237
2008151614
2007160913
2006120510
2005120611
200410058
2003180916
20022121020
20011711114
2000130813
1999142713
19984034
19974024
19965035
19952002
19941011
DateStateFatalitiesInjuriesTow-away
Jun 17, 2026VA00Yes
Jun 2, 2026LA00Yes
May 5, 2026TX01Yes
Apr 28, 2026AL01No
Dec 18, 2025SC04Yes
Nov 8, 2025FL00Yes
Sep 25, 2025SC00Yes
Sep 24, 2025WV02Yes
Jul 31, 2025VA00Yes
May 7, 2025SC00Yes
Dec 19, 2024SC00Yes
Nov 4, 2024VA00Yes
Sep 21, 2024GA00Yes
Apr 17, 2024WV00Yes
Dec 3, 2023GA02Yes
Sep 16, 2023NC00Yes
Aug 11, 2023AL00Yes
Jun 9, 2023TX00Yes
Apr 23, 2023GA02Yes
Apr 18, 2023VA00Yes
Jan 9, 2023AL00Yes
Dec 9, 2022SC01Yes
Nov 30, 2022TX00Yes
Oct 26, 2022SC00Yes
Oct 22, 2022VA01Yes