Carrier profile · USDOT 195653 · MC-197510 · Updated Jun 13, 2026

DEAN TIEFENTHALER

DBA TIEFENTHALER FARMS

3 power unitsLocal · 1 statesLAKE VIEW, IA50/100
CARRIER ACTIVEMC-197510 ACTIVE
Verified linksFMCSA SAFER

Authority & Insurance

Active operating authority by type and the full insurance continuity timeline — insurer, policy, coverage, and any lapses — so you can confirm they can legally and adequately haul your load today.

Operating authority· 49 CFR · per type

Operating authority

Common
Active
Contract
None
Broker
None

Insurance & bonds

BIPD / liability$1,000,000 in force
Cargo filing (census)Recorded per census
Surety bond (census)Not recorded per census

Insurance adequacy· filed BIPD vs the $750K federal floor

$1M in forcegeneral-freight federal minimum
$750K floor

Filed BIPD coverage of $1M meets or exceeds the $750K federal minimum for general freight (49 CFR 387.9). Some commodities (hazmat, larger vehicles) require $1M–$5M — confirm against your load.

Insurance continuity· insurer · policy · lapses

$750K BIPD last filed ’15 · 3 insurers · 0 lapsesContinuous
1987199720072017now

Shorter eras are too brief to label at this scale — all 3 insurers are named in the list below.

BIPD in force — $1,000,000 · GREAT WEST CASUALTY CO. · since Dec 2015

All 3 insurer eras · dates, limits, renewals
InsurerPeriodLimitRenewals
GREAT WEST CASUALTY CO.Feb 2004 → Dec 2015$750K7
ACUITY, A MUTUAL INSURANCE COMPANYFeb 2000 → Feb 2004$750K1
CONTINENTAL WESTERN INSURANCE CO.Feb 1987 → Feb 2000$750K1