Sigma Squared Transport Corporation (USDOT 4473629)
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- DOT number
- USDOT 4473629
- Docket (MC) number
- MC1547581
- Operating authority
- Common carrier authority: active. The federal bulk file showed this carrier active as of 2026-09-02. We could not confirm that live just now.
- Authority granted
- 2023-09-01
- Insurance on file
- Liability (BIPD) insurance on file for $750,000.
- Safety rating
- No published safety rating
- Fleet on file
- 2 power units, 2 drivers
- Operation type
- Interstate
- Physical address
- 1101 N CLEVELAND AVE APT 14, SIOUX FALLS, SD 57103
- MCS-150 last filed
- 2025-11
Frequently asked questions
What carrier is DOT 4473629?
DOT 4473629 (USDOT 4473629) is Sigma Squared Transport Corporation, an interstate motor carrier.
What carrier is MC 1547581?
MC 1547581 is the docket number of Sigma Squared Transport Corporation, USDOT 4473629.
What is Sigma Squared Transport Corporation's MC number?
Sigma Squared Transport Corporation's docket number is MC 1547581. Its USDOT number is 4473629.
Is Sigma Squared Transport Corporation currently authorized to operate?
Common carrier authority: active. The federal bulk file showed this carrier active as of 2026-09-02. We could not confirm that live just now. Source: FMCSA registration and licensing records.
Does Sigma Squared Transport Corporation have insurance on file with FMCSA?
Liability (BIPD) insurance on file for $750,000.
Who provides Sigma Squared Transport Corporation's insurance?
Sigma Squared Transport Corporation's liability insurance is filed with FMCSA by Accredited Specialty Insurance Company.
What is Sigma Squared Transport Corporation's safety record?
In the last 24 months, FMCSA records show 1 of 2 vehicle inspections ending out-of-service for Sigma Squared Transport Corporation, too few inspections for a stable rate. FMCSA records also show 0 recordable crashes in the same window.
What is Sigma Squared Transport Corporation's CSA score?
FMCSA does not publish a single CSA score for carriers. Sigma Squared Transport Corporation's public safety data includes its roadside inspection out-of-service rates and crash record, listed on this page.
What is Sigma Squared Transport Corporation's FMCSA safety rating?
Sigma Squared Transport Corporation has no published FMCSA safety rating. Most US carriers have never received a rating review, so an unrated carrier is the common case, not a warning sign by itself.
Changes over time
Carriers change. Phone numbers, email addresses, insurance, authority. A sudden contact-info change is often the first sign of carrier identity fraud. fleetfax tracks these changes. Create a free account to follow changes on carriers you save.
View the full fleetfax report for Sigma Squared Transport Corporation
Carriers based in Sioux Falls, SD
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Reconstructed from cached and fleetfax-ingested FMCSA public records, so it may be out of date. Records loaded Sep 2, 2026. Verify current status on FMCSA SAFER. fleetfax surfaces the facts; brokers make the judgment. FMCSA status