Equipment unit · VIN-decoded · NHTSA vPIC

54DC4W1C9GS812100

Not yet decoded
Carriers run under1
19 mo
Inspections2
all-time
OOS inspections0
of 2
First seenAug 21, 2023
CT
Last seenMar 14, 2025
NH
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
54D

Deterministic · VIN positions 1–3.

Vehicle descriptor section
C4W1C

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

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
812100

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
ISUZU

Prefix basis · 124 decoded VINs at 96.0% prefix purity.

Model
NPR/NPR-HD

Prefix basis · 124 decoded VINs at 96.0% 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 · Aug 21, 2023 – Mar 14, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 14, 2025NHIII · Driver-only0BRISTOL ENVIRONMENTAL LLC 1178166T20418/MA
Aug 21, 2023CTI · Full1BRISTOL ENVIRONMENTAL LLC 1178166T20418/MA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BRISTOL ENVIRONMENTAL LLC1178166Aug 21, 2023Mar 14, 20252PA
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.
T20418MABRISTOL ENVIRONMENTAL LLCAug 21, 2023Mar 14, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC