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Home/ Carriers in Iowa/ DEAN TIEFENTHALER
FMCSA Carrier Profile

DEAN TIEFENTHALER

DBA: Tiefenthaler Farms

Lake View, IA

CarrierChk vetting signal
No flags raised
Authority, insurance, safety rating, crash records and out-of-service rates checked
FMCSA status: Active & Authorized  ·  DOT 195653 · MC 197510
No Safety Rating Active 39 yrs, 7 mo
3
Power Units
3
Drivers
1
Inspections
—
Vehicle OOS
$1,000,000
Insurance

Broker Vetting Summary

Key signals from current FMCSA records

Authority
Active
MC-197510 · Common carrier
Insurance
On File
Great West Casualty Co
Safety
Not Rated
1 inspection on record
✓ No risk flags found on authority or insurance records
Vetting notes
  • Operating authority active for 39 yrs, 7 mo
  • Insurance on file: $1,000,000
  • 1 FMCSA inspection on record

Authority & Compliance

Authority, insurance and required filings

Operating Authority

MC197510
Motor Carrier of Property (Except Household Goods) · $0 required
Active

Insurance on File

Great West Casualty Co
BI&PD · $1,000,000 · Policy GWP19082E
On File
Great West Casualty Co
Cargo · $5,000 · Policy GWP19082A
On File

Required Filings

Liability (BIPD)
$1,000,000

Company Information

Registration, contact and cargo details

FMCSA Registration

DOT Number
195653
MC Number
MC-197510
Safety Rating
Not Rated
Entity Type
Partnership
Operation Classification
Authorized for hire
MCS-150 Filed
April 3, 2026
FMCSA Registration
June 1, 1974
Authority Granted
March 20, 1987
Annual Mileage
40,000 mi (2025)

Contact Information

Location
Lake View, IA
Email
[email protected]

Cargo Types

General FreightGrain/FeedFarm SuppliesOther Cargo

Safety Snapshot

Out-of-service rates, violations and crashes

Safety & Inspection Summary

Total Inspections
1
Driver Inspections
0
Vehicle Inspections
1
Out-of-Service Violations
2

Violations by Category

Vehicle Maintenance2
Unsafe Driving0
Hours of Service0

OOS Rates vs. National Average

Inspection Trend by Year

2025
1 insp · 2 OOS

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.

Vehicle Maintenance 1 of 1 inspections
Unsafe Driving 0 of 1 inspections
Hours of Service 0 of 1 inspections
Driver Fitness 1 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
IA1

Fleet & Equipment (2)

Vehicles identified in this carrier's inspection history. Year, make, model and equipment type are decoded from the VIN.
Tractor-Trailer Power units Class 8 · trailers up to 50 ft
Power units
~1
of 3 reported to FMCSA
Trailers
~1
seen at inspection
Units on record
VehicleTypeVINInspectionsWith OOS
2026 Wilson Grain / Hopper · 50 ft 1W1K45035T2280050 1 1
2023 Western Star 49X Chassis Tractor · Class 8 5KJNBWDR0PLNR3706 1 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)

DateReport #LocationLevelViolOOSShipperUnit TypeMakeVINLicense
September 22, 2025 000P10GGK3 120TH ST/ KITTYHAWK BREDA, IA', IA II 4 2 —
Truck Tractor
Semi-trailer
WESTERN STAR
WILSON
5KJNBWDR0PLNR3706
1W1K45035T2280050
IA IV5020
IA LT3433
391.11B4 OOSMedical (Certificate) - Operating a CDL (passenger or property carrying) vehicle that is non-excepted and the driver has self-certified as excepted interstate or Physical
391.41A OOSOperating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency. History of either fail Medical Certificate
393.11TL Truck-Tractor lower rear mud flaps retroreflective sheeting / reflex reflective material requirements for vehicles manufactured after July 1997 Reflective Sheeting
393.95A No/discharged/unsecured fire extinguisher Emergency Equipment

History & Filings

Authority, insurance and process-agent records

Authority History

DateStatusType
May 9, 2008DISCONTINUED REVOCATIONCommon
May 2, 2008INVOLUNTARY REVOCATIONCommon
March 20, 1987GRANTEDCommon Carrier
March 20, 1987Active
GRANTED
Motor Carrier of Property (Except Household Goods)

Insurance & Revocation Filings

DateTypeStatus
May 8, 2008CargoOn file
December 1, 2015BI&PD Primary/ExcessOn file

BOC-3 Process Agent

Process Agent Service Company, Inc.
945 S Marion Rd, Sioux Falls, SD, 57105

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Data sourced from FMCSA MCMIS via Socrata. Record last updated: October 18, 2026. Verify directly on FMCSA SAFER Web.

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