Equipment unit · VIN-decoded · NHTSA vPIC

2016 Polar Tank Trailer

1PMA22524G5015114 · TRAILER
Carriers run under1
32 mo
Inspections12
all-time
OOS inspections1
of 12
First seenJun 16, 2023
CA
Last seenFeb 26, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMA22524G5015114
Make
Polar Tank Trailer
Model
Not decoded
Model year
2016
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 10, 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
A2252

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1986 or 2016

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

North American serial sequence
015114

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 · 20 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 20 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
2016

Observed directly for this VIN via NHTSA vPIC.

Observed make
POLAR TANK TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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 · Jun 16, 2023 – Feb 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 26, 2026CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Feb 18, 2026CAI · Full3OOSWILLIAMS TANK LINES LLC 2290474PP7324/CA
Feb 17, 2026CAV · Vehicle-only0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Feb 1, 2026CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Jun 10, 2025CAV · Vehicle-only0WILLIAMS TANK LINES LLC 2290474PP7324/CA
May 21, 2025CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Feb 6, 2025CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Dec 19, 2024CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Dec 18, 2024CAI · Full0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Feb 19, 2024CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Sep 19, 2023CAV · Vehicle-only0WILLIAMS TANK LINES LLC 2290474PP7324/CA
Jun 16, 2023CAII · Walk-around0WILLIAMS TANK LINES LLC 2290474PP7324/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILLIAMS TANK LINES LLC229047Jun 16, 2023Feb 26, 202612CA
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.
4PP7324CAWILLIAMS TANK LINES LLCJun 16, 2023Feb 26, 202612
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 10, 2026