Carrier profile · USDOT 682748 · MC-318029 · Updated Jun 13, 2026

DUNBAR BUS LLC

0 power unitsTYNGSBORO, MA52/100

CARRIER INACTIVEMC-318029 INACTIVE

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: Inactive
Contract: None
Broker: None

Insurance & bonds

BIPD / liability$5,000,000 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

$5M in forcegeneral-freight federal minimum

$750K floor

Filed BIPD coverage of $5M 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

$5M BIPD last filed ’11 · 5 insurers · 2 lapsesCoverage lapse

Great American’97–’05

Onebeacon America’97–’00

Pilgrim’06–’11

beyond this history

1997200520132021now

Shorter eras are too brief to label at this scale — all 5 insurers are named in the list below.

BIPD in force — $5,000,000 · THE CHARTER OAK FIRE INSURANCE CO. · since Jul 2011

All 5 insurer eras · dates, limits, renewals

Insurer	Period	Limit	Renewals
PILGRIM INSURANCE COMPANY	May 2006 → Jul 2011	$5M	3
BANKERS STANDARD INSURANCE COMPANY	May 2005 → May 2006	$5M	1
ARBELLA PROTECTION INSURANCE COMPANY	Jan 2001 → May 2003	$5M	2
ONEBEACON AMERICA INSURANCE COMPANY	May 1997 → Jun 2000	$5M	1
GREAT AMERICAN ASSURANCE COMPANY	Feb 1997 → May 2005	$5M	2