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A Vehicle Identification Number, abbreviated to VIN, is a unique 17-character code assigned to every vehicle when it is manufactured indicating its origin and specifications. For fleet managers, the VIN is an essential reference for identification, compliance, maintenance planning and asset management.
What does a Vehicle Identification Number look like?
The VIN is made up of 17 characters including numbers and letters except I, O and Q to avoid confusion with the numbers 1 and 0. The VIN has no spaces, nor special characters and the last 6 characters must be numerical digits. An example VIN:
XYZXYZZ2XYZ222223
How many digits are in a Vehicle Identification Number?
The VIN is 17 characters long and characters 12-17 must be numeric only. This standard was introduced in 1981 to unify identification on a global scale. Vehicles manufactured before this may have different styles of VINs.
How Is a Vehicle Identification Number structured?
A VIN has three sections that identify the vehicle’s manufacturer and origin, describe its key characteristics and uniquely distinguish it from other vehicles.
World Manufacturer Identifier (WMI)
The first three characters of the VIN are the World Manufacturer Identifier (WMI), telling you who made the vehicle and where the manufacturer is based.
The first character (it can be a letter or number) indicates the region of origin, while the following characters work together to identify the manufacturer within that region, with additional country‑level differentiation applied where required.
Example 1: large manufacturing country
WAU – Audi (Germany)
W= Germany
AU = Audi
Germany is already implied by the first character, so the remaining characters mainly distinguish the manufacturer, not the country.
Example 2: broad region requiring country specification
8AP – Peugeot (Argentina)
8 = South America
AP = Manufacturer allocation within Argentina
In broad regional groupings, the WMI provides country‑level distinction, alongside manufacturer identification.
International VIN region/country codes
Europe
0
Europe
0European VIN region/country codes fall within the S-Z range. Some cover multiple countries, with the full WMI (characters 1–3) required to identify the manufacturer precisely.
| VIN first character | Country |
|---|---|
| S | United Kingdom |
| S | Poland |
| T | Switzerland |
| T | Czech Republic |
| T | Hungary |
| T | Portugal |
| V | France |
| V | Spain |
| V | Austria |
| V | Former Yugoslavia (legacy VINs) |
| W | Germany |
| X | Netherlands |
| X | Russian Federation |
| X | Former USSR (legacy VINs) |
| Y | El Salvador |
| Y | Finland |
| Y | Belgium |
| Z | Italy |
North America
0
North America
0| VIN first character | Country |
|---|---|
| 1, 4, 5 | United States |
| 2 | Canada |
VIN country codes are assigned based on manufacturing and regulatory groupings, not cultural regions. For this reason, Mexico falls into the North American VIN system.
South America
0
South America
0| VIN first character | Country |
|---|---|
| 8 | Argentina |
| 8 | Chile |
| 8 | Ecuador |
| 8 | Venezuela |
| 9 | Brazil |
| 9 | Colombia |
| 9 | Chile |
| 9 | Paraguay |
The full three-character World Manufacturer Identifier (WMI) is required to identify the specific country and manufacturer.
Oceania
0
Oceania
0| VIN first character | Country |
|---|---|
| 6 | Australia |
| 7 | New Zealand |
VIN first-character codes only meaningfully distinguish Australia and New Zealand since most Pacific island nations do not manufacture vehicles.
Africa
0
Africa
0| VIN first character | Country |
|---|---|
| A | South Africa |
Oceania- Asia
0
Oceania- Asia
0| VIN first character | Country |
|---|---|
| RA–RE | United Arab Emirates |
Vehicle Descriptor Section (VDS)
The Vehicle Descriptor Section (VDS) forms the middle part of the VIN, from character 4 to 9. It tells you key characteristics of the vehicle such as model, body style, engine type and more. Manufacturers encode the VDS differently, so you will need to check the VIN schema they provide to interpret the characters.
Vehicle Identifier Section (VIS)
The Vehicle Identifier Section, made up of the last eight characters, identifies the model year (character 10), assembly plant (character 11) and serial number (characters 12-17). This formula means that no two vehicles have the same VIN, even if they share the same make and configuration.
Where can you find the VIN on a vehicle?
The VIN is located in several places on a vehicle so that it’s easy to verify and hard to remove. Depending on the manufacturer, you might find it:
- On the dashboard, visible through the lower corner of the windscreen on the driver’s side.
- Driver’s door frame or door pillar
- Under the bonnet
- Chassis or frame
- Boot or spare wheel
The VIN can also be found on vehicle registration documents and insurance paperwork.
What information can a VIN number tell you?
Decoding each VIN character reveals a vehicle’s:
- Origin
- Manufacturer
- Configuration
- Model year
- Assembly plant
- Unique production number
Depending on the manufacturer, the configuration details may include body style, engine type, fuel type, drivetrain, transmission type, vehicle series, trim or grade, safety or restraint systems, gross vehicle weight rating (GVWR) or class and market or homologation variant.
Why is a Vehicle Identification Number important?
For fleet operators, the VIN is essential for both administration — such as identification, registration and history checks — and for meeting safety and compliance requirements, including recalls, insurance and ownership verification.
Vehicle identification and registration
Every vehicle has a unique VIN so that it can be registered and identified across markets and regulatory systems.
Vehicle history checks
With the VIN, authorised parties such as vehicle owners, fleet operators, service providers and authorities can access vehicle records, including ownership, accident, write‑off and repair history (subject to data availability and legal permissions).
Safety recalls and compliance
Manufacturers identify vehicles impacted by safety-related defects or regulatory non-compliance by their VIN. Owners are then alerted of the issue via first-class mail or digital notifications.
Insurance and ownership verification
Insurers use the VIN to determine vehicle characteristics and perform risk assessment — based on factors like repair costs, safety performance and theft risk — to calculate premiums.
Insurers can also use VINs to cross-check vehicle information with what’s declared on policies to confirm the vehicle exists and is correctly identified. In this way, VINs also help insurers detect and prevent fraud. Since each vehicle has its own VIN, duplicates or inconsistencies in vehicle numbers provided by clients are often a strong fraud signal.
When should you check a Vehicle Identification Number?
You need to check the VIN to carry out most official vehicle-related activities, including purchasing a used vehicle, verifying registration documents, performing safety recalls, insuring a vehicle or updating fleet records. VINs help fleet operators keep accurate documentation and spot fraud or errors in asset management.
What is the difference between a VIN, a chassis number and an engine number?
On most modern vehicles, chassis number and VIN refer to the same thing. Chassis number is an older, informal term referring to the number stamped on the vehicle’s chassis. The correct technical term today, however, is VIN.
Engine number identifies the engine itself and, by extension, its size and power output. An engine number is not globally standardised or unique to a vehicle. Engines can therefore be replaced and kept track of without changing the VIN.
Why are VIN numbers important for fleet management?
VINs are essential in fleet management for maintaining accurate vehicle records, complying with regulatory requirements, planning maintenance, tracking vehicles across their lifecycle and supporting integrations with fleet management platforms like Webfleet.
Learn more about how you can comply easily and optimise fleet performance with Webfleet.