Equipment unit · VIN-decoded · NHTSA vPIC

2017 Polar tank trailer Polar Tank Trailer

1PMS14221H1048135 · Trailer · TRAILER
Carriers run under2
7 mo
Inspections3
all-time
OOS inspections1
of 3
First seenMar 29, 2024
IA
Last seenOct 22, 2024
IA
Inspected under 2 different carriers in 7 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
1PMS14221H1048135
Make
Polar tank trailer
Model
Polar Tank Trailer
Model year
2017
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.
View sourced platform decode
02

Inspection history

Every roadside inspection of this VIN, newest first · Mar 29, 2024 – Oct 22, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 22, 2024IAIII · Driver-only0—BIRD TRUCKING LLC 4226089U175291/SD
Sep 2, 2024SDII · Walk-around1—BIRD TRUCKING LLC 4226089U175201/SD
Mar 29, 2024IAII · Walk-around8OOSRINGLING TRUCKING COMPANY INC 602431U175201/SD
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BIRD TRUCKING LLC4226089Sep 2, 2024Oct 22, 20242SD
RINGLING TRUCKING COMPANY INC602431Mar 29, 2024Mar 29, 20241SD
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.
U175291SD—BIRD TRUCKING LLCOct 22, 2024 → Oct 22, 20241
U175201SD—BIRD TRUCKING LLCSep 2, 2024 → Sep 2, 20241
U175201SD—RINGLING TRUCKING COMPANY INCMar 29, 2024 → Mar 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026