Equipment unit · VIN-decoded · NHTSA vPIC

1993 Ic Bus PB305

4DRBWTAR3PB134940 · Bus - School Bus · BUS
Carriers run under2
25 mo
Inspections7
all-time
OOS inspections0
of 7
First seenJan 10, 2024
CA
Last seenFeb 18, 2026
CA
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

VIN
4DRBWTAR3PB134940
Make
Ic Bus
Model
PB305
Model year
1993
Body class
Bus - School Bus
Vehicle type
BUS
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
4DR

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BWTAR

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1993 or 2023

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

North American serial sequence
134940

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
IC BUS

Prefix basis · 196 decoded VINs at 100.0% prefix purity.

Model
PB305

Prefix basis · 196 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
1993

Observed directly for this VIN via NHTSA vPIC.

Observed make
IC BUS

Observed directly for this VIN via NHTSA vPIC.

Observed model
PB305

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Bus - School Bus

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
BUS

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

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 · Jan 10, 2024 – Feb 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 18, 2026CAV · Vehicle-only0SOUTHWEST TRANSPORTATION AGENCY 28091471687621/CA
Dec 18, 2025CAV · Vehicle-only0CLOVIS UNIFIED SCHOOL DISTRICT 4215321683198/CA
Dec 16, 2025CAV · Vehicle-only0SOUTHWEST TRANSPORTATION AGENCY 28091471687621/CA
Jan 7, 2025CAV · Vehicle-only0SOUTHWEST TRANSPORTATION AGENCY 28091471687621/CA
Dec 23, 2024CAV · Vehicle-only0CLOVIS UNIFIED SCHOOL DISTRICT 4215321683198/CA
Apr 3, 2024CAV · Vehicle-only0SOUTHWEST TRANSPORTATION AGENCY 2809147NEW/CA
Jan 10, 2024CAV · Vehicle-only0CLOVIS UNIFIED SCHOOL DISTRICT 421532NEW/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHWEST TRANSPORTATION AGENCY2809147Apr 3, 2024Feb 18, 20264CA
CLOVIS UNIFIED SCHOOL DISTRICT421532Jan 10, 2024Dec 18, 20253CA
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.
1687621CASOUTHWEST TRANSPORTATION AGENCYJan 7, 2025Feb 18, 20263
1683198CACLOVIS UNIFIED SCHOOL DISTRICTDec 23, 2024Dec 18, 20252
NEWCASOUTHWEST TRANSPORTATION AGENCYApr 3, 2024Apr 3, 20241
NEWCACLOVIS UNIFIED SCHOOL DISTRICTJan 10, 2024Jan 10, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026