Fleet typeIdentity
Asset-based
137 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 548304 · MC-270785
SOUTHERN TANK TRANSPORT INC
137 power unitsavg 11.6 yrMulti-region · 13 statesHOLLY HILL, SC
CARRIER ACTIVEMC-270785 ACTIVERATED SATISFACTORY
Observed fleet · trailing 24 mo daily
137Power units
101 observed · MCS-150
97Trailers seen
Decoded · vPIC
11.6Avg age (yr)
1997–2026 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-06-13
Review before loading
Operating, but with flags a broker should weigh before tendering freight.
Active operating authorityInsurance on fileVehicle out-of-service rate above average
Watch · 2
Operating authority3232 yr active
since 1994Insurance (BIPD)On file
FMCSA L&IVehicle OOS · 24mo31.331.3 %
▲ 22.26% nat'lCrashes · fatal1010
13 in 24moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersTypical
11.6 yr
Model years 1997–2026 · peer benchmark computing.
Identity stabilityStable
32 yr unchanged
Same registration since 1994 — no chameleon / reincarnation signal.
AI readFull read
Is SOUTHERN TANK TRANSPORT INC safe to work with?
Is SOUTHERN TANK TRANSPORT INC safe to load? SOUTHERN TANK TRANSPORT INC (USDOT 548304, MC-270785) is an active asset-based motor carrier based in HOLLY HILL, SC, operating 137 power units and 115 drivers. Operating authority has been active 32 years (past the 24-month broker-confidence threshold). Across 335 roadside inspections, its vehicle out-of-service rate is 31.3% (above the 22.26% national average), with 13 reportable crashes in the last 24 months. FMCSA rates it Satisfactory. Vektor rates it review before loading (81/100), with the leading concern: fatal crash on record. Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.
FMCSA fields + Vektor analysis · updated 2026-06-13
STSOUTHERN TANK TRANSPORT INC 81
01
Safety
335 inspections · 24 mo · vs national benchmarks
Out-of-service rate· trailing 24 months vs national benchmark
Vehicle OOS 31.3% (24-mo)83 veh insp · 24-mo · nat'l 22.26%
050%nat'l 22.26%
Driver OOS 1.0% (24-mo)195 drv insp · 24-mo · nat'l 6.67%
030%nat'l 6.67%
OOS trajectory· trailing 6-mo vehicle-OOS rate vs national
8.3% now▼ Improving
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.
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
- 197
- Annualized
- ≈99 / 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
- 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
- 396.17 Periodic (annual) inspectionVehicle Maintenance30
- 393.95 Emergency equipment (extinguisher, triangles)Vehicle Maintenance19
- 393.47 Brake actuators / linings / componentsVehicle Maintenance18
- 396.3 Inspection / repair / maintenance not performedVehicle Maintenance17 · 9 OOS
- 393.78 Windshield wipersVehicle Maintenance17
02
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 (required)Filed with FMCSA
CargoNone
Surety bond (BMC-84)None
Insurance continuity· insurer · policy · lapses
$750k BIPD · 14 insurers · 0 lapsesInsurer churn
+11 earlier
St Paul · 97–02
Lexington · 02–08
Great West · 03–05
Liberty Fire · 05–07
National Interstate · 12–15
National Interstate · 16–18
19932018
No BIPD policy is currently in force in the filing history. The authority record may still list one on file — request a COI to confirm current coverage.
17 insurer eras · collapsed from 28 filings
| 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 |
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 137
- Observed power (24 mo)
- 101
- Trailers (towed)
- 97
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2026
Newest model yr
1997
Oldest model yr
VINs decoded
04
Operations & lanes
Revealed by inspection density across 13 states · 24 mo
Operating footprint· revealed by roadside-inspection geography
Operating radiusMulti-region
revealedStates observed1313
US statesInspections · 24 mo197197
SC busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
HOLLY HILL, SC
Top corridor
SC
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
Last 12 months: 3 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 84324USDOT 1537209USDOT 2164657Some overlap is legitimate (leased or sold equipment); review alongside the other signals.
Show all-time history (17 trucks · 12 carriers)
Across all inspections on record: USDOT 46595USDOT 974306USDOT 2561661USDOT 3244271USDOT 4224127USDOT 2164657USDOT 2244717USDOT 84324
Shares a registration email domain with other carriers
@sotank.com — 4 carriers: USDOT 84324USDOT 1184516USDOT 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)137137
Observed (24 mo)101101
Shared w/ other carriers1717
Registered and roadside-observed capacity are broadly consistent.
06
Identity & contact
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
- Web domain
- sotank.com
Registration
- Officers
- Brian Lemon · Dan Horton
- USDOT / docket
- 548304 · MC-270785
- First registered
- 01/21/1994
- Last MCS-150
- 09/24/2025 · 9,314,400 mi (2024)
- FMCSA safety rating
- Satisfactory · 10/12/2022
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
07
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.
08
Reviews
Verified broker, shipper & driver reviews — moderated
Performance ratings only — never the Vektor risk score
No verified reviews yet
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Leave a review09
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 2026-06-13, 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 31.3% vehicle out-of-service rate (national average 22.26%) across 335 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.