Equipment unit · VIN-decoded · NHTSA vPIC

2021 Smithco manufacturing SMITHCO MANUFACTURING

1S9SS4931ML476129 · Trailer · TRAILER
Carriers run under1
11 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJul 14, 2025
SD
Last seenJun 10, 2026
SD
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1S9SS4931ML476129
Make
Smithco manufacturing
Model
SMITHCO MANUFACTURING
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 14, 2025 – Jun 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 10, 2026SDII · Walk-around1—FLAT RATE INC 205070221218P/SD
Mar 27, 2026SDII · Walk-around2—FLAT RATE INC 205070221218P/SD
Jul 14, 2025SDIII · Driver-only1—FLAT RATE INC 205070221218P/SD
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FLAT RATE INC2050702Jul 14, 2025Jun 10, 20263SD
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.
21218PSD—FLAT RATE INCJul 14, 2025 → Jun 10, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026