RTS Financial
Fast funding for your trucking business.
Get a free quoteFMCSA Carrier Profile
JOHN & CAROL MAHNKEN
Sedalia, MO
CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating, crash records and out-of-service rates checked
FMCSA status: Active & Authorized · DOT 837833 · MC 375595
No Safety Rating
Active 26 yrs, 7 mo
Broker Vetting Summary
Key signals from current FMCSA records
Authority
Active
MC-375595 · Common carrier
Insurance
On File
Northland Insurance Company
Safety
Not Rated
1 inspection on record
✓ No risk flags found on authority or insurance records
Vetting notes
- Operating authority active for 26 yrs, 7 mo
- Insurance on file: $750,000
- 1 FMCSA inspection on record
Authority & Compliance
Authority, insurance and required filings
Operating Authority
MC375595
Common Carrier
Insurance on File
NORTHLAND INSURANCE COMPANY
BI&PD · $750,000 · Policy WN378470
Required Filings
Liability (BIPD)
$750,000
Company Information
Registration, contact and cargo details
FMCSA Registration
DOT Number
837833
MC Number
MC-375595
Safety Rating
Not Rated
Operation Classification
Authorized for hire
MCS-150 Filed
August 15, 2024
FMCSA Registration
November 4, 1999
Authority Granted
February 25, 2000
Annual Mileage
46,789 mi (2023)
Contact Information
Location
Sedalia, MO
Cargo Types
General FreightMetal/Sheet SteelMotor VehiclesLogs/Poles/BeamsBuilding MaterialsMachinery/Large ObjectsFresh ProduceLivestockGrain/FeedCoal/CokeDry BulkRefrigerated FoodBeveragesPaper ProductsFarm SuppliesConstruction MaterialsMeatOther Cargo
Safety Snapshot
Out-of-service rates, violations and crashes
Safety & Inspection Summary
Total Inspections
1
Driver Inspections
1
Vehicle Inspections
0
Out-of-Service Violations
0
Violations by Category
Vehicle Maintenance2
Unsafe Driving0
Hours of Service0
OOS Rates vs. National Average
Inspection Trend by Year
2026
Violation Rate by Category
Share of roadside inspections in FMCSA's rolling 24-month window that found a violation in each category. The individual violations are listed under each inspection in Inspection Details below. None of this is the basis of the safety rating, which comes from an on-site compliance review.
Unsafe Driving
0 of 1 inspections
Hours of Service
0 of 1 inspections
Driver Fitness
0 of 1 inspections
Controlled Substances
0 of 1 inspections
Fleet & Operating Areas
Observed roadside activity and equipment
Where This Carrier Operates
States where this carrier's roadside inspections were recorded
FewerMore
MO1
Fleet & Equipment (2)
Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Power units
~1
of 1 reported to FMCSA
Trailers
~1
seen at inspection
Units on record
| Vehicle | Type | VIN | Inspections | With OOS |
|---|---|---|---|---|
| 1983 Great Dane Trailers | Flatbed · 84 ft | 1GRDP8427DM020502 | 1 | — |
| 2004 Peterbilt 379 | Not Applicable · Class 8 | 1XP5DB9X04N836193 | 1 | — |
A vehicle appearing here was recorded in an inspection — it is not proof the carrier still operates it today.
Inspection Details
Each roadside inspection with its violations
Inspection Records (1)
| Date | Report # | Location | Level | Viol | OOS | Shipper | Unit Type | Make | VIN | License |
|---|---|---|---|---|---|---|---|---|---|---|
| August 14, 2026 | A874000082 | MAYVIEW MO | III | 5 | — | CORESLAB STRUCTURES MISSOURI INC | Truck Tractor Semi-trailer |
PETERBILT GREAT DANE TRAILERS |
1XP5DB9X04N836193 1GRDP8427DM020502 |
MO 01KT0P MO 95K5KU |
| 396.17C-PI | Operating a CMV without documentation of a periodic inspection | Inspection Reports | ||||||||
| 396.17C-PI | Operating a CMV without documentation of a periodic inspection | Inspection Reports | ||||||||
| 392.2-SLLIRP | State/Local Laws - IRP apportioned tag or registration violation | |||||||||
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
| 392.2-SLLSR | State/Local Laws - State registration/tag violation | |||||||||
Shippers Seen at Inspections
Shipper names recorded by roadside inspectors over roughly the last three years. Only inspected loads appear, so this is a sample of who the carrier hauls for, not a complete customer list. Names are as entered at the roadside; blanks and placeholders such as “N/A” or “same as carrier” are left out.
| Shipper | Inspections | Most recent |
|---|---|---|
| CORESLAB STRUCTURES MISSOURI INC | 1 | August 14, 2026 |
History & Filings
Authority, insurance and process-agent records
Authority History
| Date | Status | Type |
|---|---|---|
| February 25, 2000 | GRANTED | Common Carrier |
Insurance & Revocation Filings
| Date | Type | Status |
|---|---|---|
| December 24, 2024 | BI&PD Primary/Excess | On file |
CarrierChk Partners
View all partners →Your business here
Introduce your business to carriers.
Explore partnership
Sponsored listings — CarrierChk may be compensated for referrals. Partner with CarrierChk →
Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 11, 2026.
Verify directly on FMCSA SAFER Web.
Verify Any Carrier Free
Search any DOT or MC number for live authority status, insurance on file, and full safety history.
This profile is built from public FMCSA records. If this is your company, you can hide your contact details or request removal of this page.