Equipment unit · VIN-decoded · NHTSA vPIC

2007 Polar Tank Trailer

1PMA2442975005577 · Trailer · TRAILER
Carriers run under2
26 mo
Inspections7
all-time
OOS inspections0
of 7
First seenMar 22, 2024
CA
Last seenMay 18, 2026
CA
Inspected under 2 different carriers in 26 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.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMA2442975005577
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2007
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 18, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1PM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
A2442

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
2007 or 2037

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
005577

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
POLAR TANK TRAILER

Prefix basis · 1,078 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 1,078 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2007

Observed directly for this VIN via NHTSA vPIC.

Observed make
POLAR TANK TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Polar Tank Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Mar 22, 2024 – May 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 18, 2026CAI · Full1THOMPSON & HARVEY TRANSPORTATION INC 14771214SU7998/CA
Feb 24, 2026CAV · Vehicle-only0THOMPSON HARVEY BAY AREA LLC 22713574SU7998/CA
Nov 11, 2025CAI · Full0THOMPSON & HARVEY TRANSPORTATION INC 14771214SU7998/CA
Oct 22, 2025CAV · Vehicle-only0THOMPSON & HARVEY TRANSPORTATION INC 14771214SU7998/CA
Jul 12, 2025CAI · Full1THOMPSON & HARVEY TRANSPORTATION INC 14771214SU7998/CA
Apr 19, 2024CAII · Walk-around0THOMPSON & HARVEY TRANSPORTATION INC 14771214SU7998/CA
Mar 22, 2024CAII · Walk-around1THOMPSON & HARVEY TRANSPORTATION INC 14771214SU7998/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
THOMPSON & HARVEY TRANSPORTATION INC1477121Mar 22, 2024May 18, 20266CA
THOMPSON HARVEY BAY AREA LLC2271357Feb 24, 2026Feb 24, 20261CA
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
4SU7998CATHOMPSON & HARVEY TRANSPORTATION INCMar 22, 2024May 18, 20266
4SU7998CATHOMPSON HARVEY BAY AREA LLCFeb 24, 2026Feb 24, 20261
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026