S D T
Operations
What S D T’s FMCSA record shows
Each field from the public registration, and what it means when you’re vetting this carrier.
- USDOT number 339051
- The USDOT number is FMCSA's permanent ID for this company. It never changes, even when the business renames, moves, or changes owners, so it's the most reliable way to identify S D T.
- MC number None on file
- No MC number is on file. That's normal for private fleets hauling their own goods and for intrastate-only carriers, but a company with no MC number can't legally haul regulated interstate freight for hire.
- Operating status Inactive
- FMCSA lists this USDOT number as inactive. Inactive carriers shouldn't be dispatched; confirm the company has reactivated before booking a load.
- Operation type Interstate
- Interstate carriers can haul freight across state lines and fall under the full federal safety rules (FMCSRs).
- Fleet size 363 power units, 155 drivers
- S D T self-reports 363 power units (trucks and tractors), which makes it a large fleet. Fleet counts come from the carrier's own MCS-150 filing and aren't independently audited.
Safety profile
FMCSA BASIC percentiles, inspection history, and out-of-service rates.
Full safety report
All 7 FMCSA BASIC percentiles, recent inspection records, vehicle & driver out-of-service rates — free with any account.
Crash history
State-reportable crashes, severity breakdown, and time-decayed analysis.
Crash history
Individual crash records with date, severity (fatal / injury / tow-away), and fleet-normalized rate.
Insurance & compliance
Active policy coverage, insurance carrier, effective dates, and historical gaps.
Insurance details
BI&PD coverage, cargo insurance, insurance carrier name, effective dates — a critical pre-booking check.
Authority & cross-reference
Authority revocation history and chameleon carrier detection across 4.4M records.
Authority & cross-reference
Every authority grant, revocation, and reinstatement — plus chameleon flags from address / officer / phone matches.
Frequently asked questions about S D T
Common questions about this carrier, answered from FMCSA public records.
Is S D T a legitimate motor carrier?
S D T is registered with FMCSA under USDOT number 339051. Operating authority status is currently Inactive. Carrier90's trust score of 50/100 yields a REVIEW verdict based on safety, insurance, authority, and crash data.
What is S D T's safety score?
Carrier90 scores S D T at 50 out of 100 with a REVIEW verdict. The score combines FMCSA BASIC percentiles, crash history, insurance status, operating authority, and chameleon carrier detection signals.
Where is S D T based?
S D T lists its physical address in WINNSBORO, LA in FMCSA records. The physical state and city fields are provided by the carrier on their MCS-150 form.
Is USDOT 339051 active?
USDOT 339051 (S D T) operating authority status is currently Inactive. Last verified by Carrier90 on October 15, 2026. Data is sourced from live FMCSA federal records.
How many trucks does S D T operate?
S D T reports 363 power units and employs 155 drivers to FMCSA. These figures come from the carrier's most recent MCS-150 filing.
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Related resources
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