Equipment unit · VIN-decoded · NHTSA vPIC

1PMA1442161030210

Not yet decoded
Carriers run under2
25 mo
Inspections2
all-time
OOS inspections2
of 2
First seenDec 22, 2023
SD
Last seenJan 13, 2026
SD
Inspected under 2 different carriers in 25 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
A1442

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
2006 or 2036

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

North American serial sequence
030210

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 · 6 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 6 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.

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 · Dec 22, 2023 – Jan 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 13, 2026SDII · Walk-around2OOSJACOBSON TRANSPORT INC 490378T184118/ND
Dec 22, 2023SDII · Walk-around1OOSCLIFF VIESSMAN INC (A SOUTH DAKOTA CORPORATION) 164259T184118/ND
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JACOBSON TRANSPORT INC490378Jan 13, 2026Jan 13, 20261ND
CLIFF VIESSMAN INC (A SOUTH DAKOTA CORPORATION)164259Dec 22, 2023Dec 22, 20231SD
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.
T184118NDJACOBSON TRANSPORT INCJan 13, 2026Jan 13, 20261
T184118NDCLIFF VIESSMAN INC (A SOUTH DAKOTA CORPORATION)Dec 22, 2023Dec 22, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC