Porterfield, WI
DOT 4509753MC 17852281 trucks1 drivers
Green: NO RED FLAGS IN FMCSA RECORDS
Active authority and insurance on file. Still confirm every load by calling the phone number on file.
Authority
Active Authority
Legally allowed to pick up and haul interstate freight.
MC active for 9 months (since January 30, 2026)
Insurance
Active Liability Insurance ($1,000,000 Covered)
Pays for damage or injuries if this truck causes a crash. It's on file with FMCSA.
Paperwork (MCS-150)
Paperwork Status: Up to Date
Last filed December 22, 2025. Next update due by March 2027.
Safety Rating
Not Checked
Not in this record. Run a live check for FMCSA's current rating.
| Coverage | On record with FMCSA |
|---|---|
| Liability (BIPD) required | $1,000,000 |
| Liability (BIPD) on file | $1,000,000 |
| Cargo insurance | Not on file |
FMCSA insurance file as of May 14, 2026.
Insurer names and policy numbers appear here once our nightly copy has them. Run the live check for the current FMCSA filing.
From FMCSA's authority history (its current Motus system, plus the older L&I history it froze on May 14, 2026). "First granted" is the earliest grant on record; "on record since" is the earliest action FMCSA has when the grant itself is older than its electronic records. "Active since" is the latest grant or reinstatement, so a lapse that FMCSA reinstated restarts the clock.
From FMCSA's Safety Measurement System files, October 2024 to October 2026. Crash counts include crashes the carrier didn't cause. Out-of-service rates use only inspections that checked the driver or the vehicle.
Every roadside inspection in FMCSA's file for USDOT #4509753: when, where, and which vehicles (type, make, VIN) the inspector recorded.
THC compares FMCSA's files every night and keeps what changed. Tracked since October 30, 2026, last compared November 15, 2026.
No changes seen in the details THC tracks (status, name, phone, MC number, authority, insurance and bond filings) since October 30, 2026. That covers only what FMCSA's public files show.
Dates are when THC noticed the change in FMCSA's files, not when it happened, unless FMCSA's file gives the date. FMCSA's files can lag behind FMCSA's own systems. Check this record on FMCSA SAFER · Daily FMCSA change reports
Yes. USDOT 4509753 (Kowalskis Trailer & Transport LLC) is active, with active for-hire carrier operating authority under MC 1785228 (FMCSA authority file, May 14, 2026).
FMCSA's authority history shows Kowalskis Trailer & Transport LLC's common carrier authority was first granted on January 30, 2026 and is active.
Our daily record doesn't include Kowalskis Trailer & Transport LLC's safety rating. Run a free live check to see FMCSA's current rating. Most carriers are "Not Rated", which is normal: it means FMCSA has never done a full audit.
In FMCSA's safety data for October 2024 to October 2026, Kowalskis Trailer & Transport LLC had 1 roadside inspection. It had no reportable crashes.
Yes, it looks up to date. FMCSA's records show it was last filed December 22, 2025. The next update is due by March 31, 2027.
Yes. FMCSA's records show liability (BIPD) insurance on file for Kowalskis Trailer & Transport LLC ($1,000,000 on file). Ask for a certificate of insurance naming you before the load.
From public FMCSA records (the Company Census File, FMCSA's daily authority and insurance file and its monthly Safety Measurement System inspection and crash files). Trucking Help Center is not FMCSA and is not affiliated with this company. Records can change daily: run a live check, and confirm every load by calling the phone number on file. Is this your company and something looks wrong? Update your MCS-150 with FMCSA; our copy refreshes nightly.
Green: NO RED FLAGS IN FMCSA RECORDS
Active authority and insurance on file. Still confirm every load by calling the phone number on file.
Authority
Active Authority
Legally allowed to pick up and haul interstate freight.
MC active for 9 months (since January 30, 2026)
Insurance
Active Liability Insurance ($1,000,000 Covered)
Pays for damage or injuries if this truck causes a crash. It's on file with FMCSA.
Paperwork (MCS-150)
Paperwork Status: Up to Date
Last filed December 22, 2025. Next update due by March 2027.
Safety Rating
Not Checked
Not in this record. Run a live check for FMCSA's current rating.
