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

Observed fleet · trailing 24 mo daily

137Power units

100 observed · MCS-150

92Trailers seen

Decoded · vPIC

11.7Avg age (yr)

1997–2026 · vPIC

Call dispatch(803) 496-1800 Email dispatchsafety_dept@sotank.com

Click to see how we scored it

Load decision · FMCSA snapshot · Jun 13, 2026

Review before loading

Operating, but with flags a broker should weigh before tendering freight.

Watch · 2

Vehicle out-of-service rate above average30.9% vs the 22.26% national average.Fatal crash on record10 crash(es) involving a fatality are on this carrier's record.

In good standing · 3

Active operating authorityActive for-hire authority is on file with FMCSA.Insurance on fileBIPD (liability) insurance is on file with FMCSA.Established 33 yearsOperating authority has been on file since 1994.

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$1M in force

FMCSA L&I

Vehicle OOS · 24-mo30.9%

▲ 22.26% nat'l

Crashes · fatal

13 in 24 mo

USDOT registration

yr registered

Active for-hire

Insurance (BIPD)$1M in force

FMCSA L&I

Vehicle OOS · 24-mo30.9%

▲ 22.26% nat'l

Crashes · fatal

13 in 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Asset-based

137 power units. Brokers price each fleet type apart.

Fleet age vs peersTypical

11.7 yr

Model years 1997–2026 · peer benchmark unavailable.

Identity stabilityStable

32 yr unchanged

Same registration since 1994 — no chameleon / reincarnation signal.

Safety

194 inspections · 24 mo · vs national benchmarks

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

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

Explore full safety record — inspections, BASICs, crashes

Authority & Insurance

Can they legally + adequately haul your load?

Operating authority· 49 CFR · per type

Operating authority

Common: None
Contract: Active
Broker: None

Insurance & bonds

BIPD / liability$1,000,000 in force

Cargo filing (census)Not recorded per census

Surety bond (census)Not recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$1M in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $1M meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$750K BIPD last filed ’18 · 14 insurers · 0 lapsesInsurer churn

Stonington’93–’97

St Paul’97–’02

Lexington’02–’08

beyond this history

1993200220112020now

Shorter eras are too brief to label at this scale — all 17 insurers are named in the list below.

BIPD in force — $1,000,000 · ZURICH AMERICAN INSURANCE COMPANY · since Mar 2018

All 17 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
NATIONAL INTERSTATE INSURANCE COMPANY	Mar 2016 → Mar 2018	$750K	2
STARR INDEMNITY & LIABILITY INSURANCE COMPANY	Mar 2015 → Mar 2016	$750K	2
GEMINI INSURANCE COMPANY	Mar 2015 → Apr 2015	$750K	1
STARR INDEMNITY & LIABILITY INSURANCE COMPANY	Mar 2015 → Mar 2015	$750K	1
NATIONAL INTERSTATE INSURANCE COMPANY	Nov 2012 → Mar 2015	$750K	2
COMMERCE AND INDUSTRY INSURANCE	Nov 2011 → Nov 2012	$750K	1
HALLMARK INSURANCE COMPANY	Nov 2011 → Nov 2011	$750K	1
ILLINOIS NATIONAL INSURANCE CO.	Nov 2010 → Nov 2011	$750K	1
THE INSURANCE CO OF THE STATE OF PENNSYLVANIA	Nov 2009 → Nov 2010	$750K	1
ZURICH AMERICAN INSURANCE COMPANY	Nov 2008 → Nov 2009	$750K	1
GREAT WEST CASUALTY CO.	Nov 2007 → Nov 2008	$750K	1
LIBERTY MUTUAL FIRE INSURANCE CO.	Nov 2005 → Nov 2007	$750K	2
GREAT WEST CASUALTY CO.	Nov 2003 → Nov 2005	$750K	2
AMERICAN HOME ASSURANCE CO.	Nov 2002 → Nov 2003	$750K	1
LEXINGTON INSURANCE COMPANY	Nov 2002 → Nov 2008	$750K	1
ST. PAUL FIRE & MARINE INSURANCE CO.	Nov 1997 → Nov 2002	$750K	4
STONINGTON INSURANCE COMPANY	Jul 1993 → Dec 1997	$750K	4

Explore full authority & insurance record

Equipment

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 137
Observed power (24 mo): 100
Trailers (towed): 92

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Fleet age· model years · decoded VINs

11.7 yr

Average age

2026

Newest model yr

1997

Oldest model yr

45.9%

VINs decoded

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & Lanes

Revealed by inspection density across 13 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusMulti-region

revealed

States observed

US states

Inspections · 24 mo

194

SC busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

HOLLY HILL, SC

1789 GARDNER

Top corridor

SC 81 · TX 33 · AL 22

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & Fraud

Affiliated entities & reincarnation signals · for review, not a verdict

Last 12 months: 4 trucks also ran under 3 other carriers

VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 84324 USDOT 1537209 USDOT 2164657Some overlap is legitimate (leased or sold equipment); review alongside the other signals.

Show all-time history (19 trucks · 12 carriers)

Across all inspections on record: USDOT 46595 USDOT 974306 USDOT 2561661 USDOT 3244271 USDOT 4224127 USDOT 2164657 USDOT 2244717 USDOT 84324

Shares a registration email domain with other carriers

@sotank.com — 4 carriers: USDOT 84324 USDOT 1184516 USDOT 2952533

Shares a company officer with other carriers

brian lemon — 2 carriers: USDOT 2801378

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

137

Observed (24 mo)

100

Shared w/ other carriers

Registered and roadside-observed capacity are broadly consistent.

Explore the carrier network & VIN cross-links

Identity & Federal

FMCSA census + L&I dossier

Location

Physical address: 1789 GARDNER, HOLLY HILL, SC, 29059
Mailing address: P O BOX 70, HOLLY HILL, SC, 29059
Operation: Interstate

Contact

Phone: (803) 496-1800
Cell: (843) 708-3384
Fax: (803) 496-1810
Email: safety_dept@sotank.com
Web domain: sotank.com

Registration

Officers: Brian Lemon · Dan Horton
USDOT / docket: 548304 · MC-270785
First registered: Jan 21, 1994
Last MCS-150: Sep 24, 2025 · 9,314,400 mi (2024)
FMCSA safety rating: Satisfactory · Oct 12, 2022
D-U-N-S: —

Fleet (self-reported · MCS-150)

137

Power units

115

Drivers

115

CDL drivers

9,314,400

Annual mileage

Open the full identity & federal record

Federal activity

Daily-captured FMCSA licensing & insurance changes — monitored by Vektor

Federal record activity· monitored daily by Vektor

No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

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Verification summaryAuthority, insurance, safety and identity facts for SOUTHERN TANK TRANSPORT INC.

SOUTHERN TANK TRANSPORT INC (USDOT 548304) has a Vektor safety score of 81/100 and a Review before loading verdict, from the carrier's FMCSA record refreshed Jun 13, 2026.

The carrier holds active contract for-hire operating authority per FMCSA L&I as of Jun 13, 2026.

It has an active BIPD insurance filing with a $1,000,000 limit in force from ZURICH AMERICAN INSURANCE COMPANY effective Mar 1, 2018 in FMCSA L&I's current snapshot as of Jun 13, 2026.

Its vehicle out-of-service rate was 30.9% over the last 24 months, versus the 22.26% CVSA national average, from FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier received 194 roadside inspections in the last 24 months — 81 vehicle-level and 192 driver-level — across 13 states, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier has 13 reportable crashes in the last 24 months and 10 fatal crashes across the full FMCSA crash record available as of Jun 13, 2026.

It reports 137 power units and 115 drivers in its most recent MCS-150 filing dated Sep 24, 2025.

It has an FMCSA safety rating of Satisfactory assigned Oct 12, 2022 in the federal record refreshed Jun 13, 2026.

Frequently asked

What is SOUTHERN TANK TRANSPORT INC's USDOT number?

SOUTHERN TANK TRANSPORT INC's USDOT number is 548304, and its motor carrier number is MC-270785.

Is SOUTHERN TANK TRANSPORT INC authorized to operate?

As of Jun 13, 2026, SOUTHERN TANK TRANSPORT INC is active in the FMCSA register with common, contract, broker operating authority on file.

What is SOUTHERN TANK TRANSPORT INC's safety record?

SOUTHERN TANK TRANSPORT INC has a 30.9% vehicle out-of-service rate (national average 22.26%) across 338 roadside inspections, with 13 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 81/100 (tier: review).

How big is SOUTHERN TANK TRANSPORT INC's fleet?

SOUTHERN TANK TRANSPORT INC operates 137 power units and 115 drivers per its most recent MCS-150 filing.

Where is SOUTHERN TANK TRANSPORT INC based?

SOUTHERN TANK TRANSPORT INC is based in HOLLY HILL, SC, with roadside inspections recorded across 13 states.

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