Glossary
WMI code
WMI code is three-character World Manufacturer Identifier assigned to each maker under 49 CFR Part 565, held in vPIC's global registry and resolvable through the DecodeWMI and GetWMIsForManufacturer endpoints. Datadory's catalog of 1,744 datasets documents it directly in NHTSA vPIC.
What is WMI code?
The three-character World Manufacturer Identifier assigned to each maker under 49 CFR Part 565, held in vPIC's global registry and resolvable through the DecodeWMI and GetWMIsForManufacturer endpoints.
In this catalog it appears concretely: - NHTSA vPIC — "World Manufacturer Identifier code assigned under 49 CFR Part 565".
Why does WMI code matter when choosing a dataset?
Conventions decide whether two sources can be joined at all. Buy one side of an analysis that ignores this convention and every reconciliation step — calendar alignment, unit conversion, entity matching — lands on your team instead of the vendor's.
The failure mode is concrete: a source can carry the WMI code label while differing from what you need on exactly the dimension that matters — World Manufacturer Identifier code assigned under 49 CFR Part 565. Comparing two sources on that line usually settles the choice faster than any feature matrix.
You rarely have to take a vendor's word for it. 82.4% of the 1,744 datasets Datadory catalogs are free to access, and NHTSA vPIC lets you inspect the real artifact before any budget is committed.
How do you evaluate WMI code in a data source?
Treat every claim of this attribute as testable:
- Open NHTSA vPIC and confirm its record — "World Manufacturer Identifier code assigned under 49 CFR Part 565" — against the files you actually receive.
- Pin down update cadence in writing. Across this catalog, 22.6% of 1,744 datasets refresh daily and 64 still arrive only through a manual request form, so ask exactly how fresh each release is.
- Check whether definitions are verified at all. Field definitions are verified for 1495 of 1,744 datasets (85.7%), and any source you license should meet that bar.
- Price the delivery route before the license. In this catalog bulk download is the most common access method (725 datasets) ahead of official APIs (574), and 379 sources still require scraping — a maintenance cost that lands on you, not the vendor.
See the term applied to real records: automobile-manufacturers data, tires-rubber data.
Related terms
Adjacent concepts worth reading next: - Keyless API - Standalone database snapshot - vin decoding
Frequently asked questions
What is an example of WMI code?
NHTSA vPIC is the clearest example in this catalog. Its record states: "World Manufacturer Identifier code assigned under 49 CFR Part 565". Across all 1,744 datasets Datadory averages a quality score of 7.81 out of 10, so a named example can be weighed rather than trusted blindly.
Is data described as "WMI code" free to use?
Treat access and permission separately. 82.4% of the 1,744 datasets in this catalog are free to access, but 235 are freemium and 61 are paid outright, so confirm both the price and the license on the exact distribution before building on it.
Datasets containing this field
Datasets containing WMI code
6 datasets carry wmi code in the catalog. Open one, count the fields, judge for yourself.
ACEA European Automobile Statistics Hub
ACEA Passenger Car Registrations by Fuel Type and Manufacturer
Auto Care Association — ACES & PIES Standards Portal
Data.gov Automobile Manufacturer Collection
title · organization · publisher …+3 more
EPA Fuel Economy Dataset (1984-2026)
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