Carrier profile · USDOT 270551 · MC-191270 · Updated Jun 13, 2026

SOUTHWEST INTERSTATE TRANSPORTATION INC

19 power unitsavg 10.4 yrRegional · 3 statesCUMBY, TX88/100

CARRIER ACTIVEMC-191270 ACTIVERATED SATISFACTORY

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: Active
Broker: None

Insurance & bonds

BIPD / liability$1,000,000 in force

Cargo filing (census)Not 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

$1M BIPD last filed ’23 · 20 insurers · 0 lapsesInsurer churn

State County’99–’02

Carolina’07–’11

United States’16–’19

1994200220102018now

Shorter eras are too brief to label at this scale — all 21 insurers are named in the list below.

BIPD in force — $1,000,000 · SPINNAKER INSURANCE COMPANY · since Feb 2023

All 21 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
CANAL INSURANCE CO.	Feb 2022 → Feb 2023	$1M	1
FALLS LAKE NATIONAL INSURANCE COMPANY	Feb 2020 → Feb 2022	$1M	1
UNITED SPECIALTY INSURANCE COMPANY	Feb 2019 → Feb 2020	$1M	1
UNITED STATES FIRE INSURANCE CO.	Feb 2016 → Feb 2019	$1M	1
ILLINOIS NATIONAL INSURANCE CO.	Feb 2015 → Feb 2016	$1M	1
AMERICAN ALTERNATIVE INSURANCE CORPORATION	Dec 2014 → Feb 2015	$1M	2
NEW YORK MARINE & GENERAL INS. CO.	Sep 2014 → Dec 2014	$1M	1
STRATFORD INSURANCE COMPANY	Sep 2013 → Sep 2014	$1M	1
THE CONTINENTAL INSURANCE CO.	Sep 2012 → Sep 2013	$1M	1
COMPANION PROPERTY & CASUALTY INS. CO.	Sep 2011 → Sep 2012	$1M	1
CAROLINA CASUALTY INSURANCE CO.	Sep 2007 → Sep 2011	$1M	4
GREAT WEST CASUALTY CO.	Sep 2005 → Sep 2007	$1M	1
OCCIDENTAL FIRE AND CASUALTY CO. OF N.C.	Sep 2003 → Sep 2005	$1M	2
CANAL INDEMNITY COMPANY	Sep 2002 → Sep 2003	$1M	1
STATE AND COUNTY MUTUAL FIRE INS CO	May 1999 → Sep 2002	$1M	8
LEGION INSURANCE COMPANY	Mar 1999 → May 1999	$1M	1
AMERICAN INTERNATIONAL SOUTH INSURANCE CO.	Jun 1998 → Mar 1999	$1M	1
RELIANCE INSURANCE CO/UNITED PACIFIC INSURANC	Apr 1998 → Jun 1998	$1M	1
ACCELERATION NATIONAL INSURANCE CO.	Sep 1997 → Apr 1998	$1M	3
UNITED SOUTHERN ASSURANCE CO.	Oct 1996 → Oct 1997	$1M	2
EMPIRE FIRE & MARINE INSURANCE CO.	Oct 1994 → Oct 1996	$1M	2