Equipment unit · VIN-decoded · NHTSA vPIC

2015 Polar Tank Trailer

1PMA24421F5013171 · Trailer · TRAILER
Carriers run under2
29 mo
Inspections10
all-time
OOS inspections0
of 10
First seenSep 6, 2023
NJ
Last seenFeb 13, 2026
NJ
Inspected under 2 different carriers in 29 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
1PMA24421F5013171
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2015
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1985 or 2015

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

North American serial sequence
013171

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
2015

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 · Sep 6, 2023 – Feb 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 13, 2026NJII · Walk-around0AMERICAN TRANSIT INC 979671C91TCA/NJ
Jan 14, 2026NJII · Walk-around0AMERICAN TRANSIT INC 979671C91TCA/NJ
Jan 12, 2026NJII · Walk-around0AMERICAN TRANSIT INC 979671C91TCA/NJ
Aug 1, 2025NJII · Walk-around0AMERICAN TRANSIT INC 979671C91TCA/NJ
Mar 17, 2025NJII · Walk-around0AMERICAN TRANSIT INC 979671C91TCA/NJ
Jan 10, 2025NJII · Walk-around1AMERICAN TRANSIT INC 979671TML66J/NJ
Aug 16, 2024NJII · Walk-around1AMERICAN TRANSIT INC 979671TML66J/NJ
May 10, 2024NJII · Walk-around3STAR TANK LINES INC 1404378TML66J/NJ
Sep 26, 2023NJII · Walk-around0STAR TANK LINES INC 1404378TML66J/NJ
Sep 6, 2023NJII · Walk-around6STAR TANK LINES INC 1404378TML66J/NJ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AMERICAN TRANSIT INC979671Aug 16, 2024Feb 13, 20267NJ
STAR TANK LINES INC1404378Sep 6, 2023May 10, 20243NJ
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.
C91TCANJAMERICAN TRANSIT INCMar 17, 2025Feb 13, 20265
TML66JNJAMERICAN TRANSIT INCAug 16, 2024Jan 10, 20252
TML66JNJSTAR TANK LINES INCSep 6, 2023May 10, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026