Equipment unit · VIN-decoded · NHTSA vPIC

2003 Polar Tank Trailer

1PMA1452031026255 · Trailer · TRAILER
Carriers run under1
32 mo
Inspections4
all-time
OOS inspections0
of 4
First seenAug 9, 2023
NV
Last seenApr 12, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMA1452031026255
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2003
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 7, 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
A1452

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
2003 or 2033

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

North American serial sequence
026255

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 · 13 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 13 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
2003

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 · Aug 9, 2023 – Apr 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 12, 2026CAIII · Driver-only0BLACK DIAMOND ASPHALT INC 5617924DT5797/CA
Feb 16, 2025CAII · Walk-around0BLACK DIAMOND ASPHALT INC 5617924DT5797/CA
Jan 16, 2025CAII · Walk-around2BLACK DIAMOND ASPHALT INC 5617929G96606/CA
Aug 9, 2023NVI · Full7BLACK DIAMOND ASPHALT INC 5617924DT5797/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BLACK DIAMOND ASPHALT INC561792Aug 9, 2023Apr 12, 20264CA
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.
4DT5797CABLACK DIAMOND ASPHALT INCAug 9, 2023Apr 12, 20263
9G96606CABLACK DIAMOND ASPHALT INCJan 16, 2025Jan 16, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026