Equipment unit · VIN-decoded · NHTSA vPIC

1996 Polar tank trailer Polar Tank Trailer

1PMS34221T1016630 · Trailer · TRAILER

Carriers run under2

23 mo

Inspections4

all-time

OOS inspections0

of 4

First seenAug 23, 2024

Last seenJul 15, 2026

Inspected under 2 different carriers in 23 months

A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN: 1PMS34221T1016630
Make: Polar tank trailer
Model: Polar Tank Trailer
Model year: 1996
Body class: Trailer
Vehicle type: TRAILER
GVWR: Not decoded
Decoded at: Jul 17, 2026

vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.

Inspection history

Every roadside inspection of this VIN, newest first · Aug 23, 2024 – Jul 15, 2026

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
Jul 15, 2026	CA	V · Vehicle-only	0	—	ASSURANCE DIRECT OIL LLC 4540128	4PB7934/CA
May 3, 2026	CA	I · Full	1	—	FLYERS TRANSPORTATION LLC 635460	4PB7934/CA
Oct 16, 2024	CA	II · Walk-around	0	—	FLYERS TRANSPORTATION LLC 635460	4PB7934/CA
Aug 23, 2024	CA	I · Full	1	—	FLYERS TRANSPORTATION LLC 635460	4PB7934/CA

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
ASSURANCE DIRECT OIL LLC	4540128	Jul 15, 2026	Jul 15, 2026	1	MA
FLYERS TRANSPORTATION LLC	635460	Aug 23, 2024	May 3, 2026	3	CA

Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.

Plate & unit-number history

The same truck under different plate registrations across carriers

Plate	State / prov.	Unit no.	Carrier	Date range	Insp.
4PB7934	CA	1	ASSURANCE DIRECT OIL LLC	Jul 15, 2026 → Jul 15, 2026	1
4PB7934	CA	—	FLYERS TRANSPORTATION LLC	Aug 23, 2024 → May 3, 2026	3

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 17, 2026