The Society of Automotive Engineers (SAE) in the US assigns WMIs to countries and manufacturers. For example, within 1G (assigned to General Motors in the United States), 1G1 represents Chevrolet passenger cars 1G2, Pontiac passenger cars and 1GC, Chevrolet trucks.

Some manufacturers use the third character as a code for a vehicle category (e.g., bus or truck), a division within a manufacturer, or both. A manufacturer who builds fewer than 1,000 vehicles per year uses a 9 as the third digit, and the 12th, 13th and 14th position of the VIN for a second part of the identification. The first three characters uniquely identify the manufacturer of the vehicle using the world manufacturer identifier or WMI code. VIN in a GM-T-Platform body next to a passenger seat World manufacturer identifier Indication that provides ' clear identification of a particular vehicle' Indication of ' the general characteristics of the vehicle' The VIN comprises the following sections: Compatible but different implementations of these ISO standards have been adopted by the European Union and the United States. Modern VINs are based on two related standards, originally issued by the International Organization for Standardization (ISO) in 19: ISO 3779 and ISO 3780, respectively. ADR 61/2 used in Australia, referring to ISO 37.SAE J853: Very similar to the ISO standard.ISO 3779: Used in Europe and many other parts of the world.

FMVSS 115, Part 565: Used in United States and Canada.

There are at least four competing standards used to calculate the VIN. In the European vehicles, it can be found e.g. The VIN control digit is also used, although not in all brand-models. For example, Volkswagen started to encode bigger chunks of information during 1995-1997, and the control digit during 2009-2015 for selected models from the group. However, the sets of information contained in it were introduced gradually. The ISO introduced recommendations for applying the VIN standard and its structure, and the bodywork number was also used in Europe. It required all on-road vehicles sold to contain a 17-character VIN, which does not include the letters O (o), I (i), and Q (q) (to avoid confusion with numerals 0, 1, and 9).Īfter the introduction of the ISO norm, the manufacturers which produced vehicles for the American market very quickly adjusted to this standard. In 1981, the National Highway Traffic Safety Administration of the United States standardized the format. From 1954 to 1981, there was no accepted standard for these numbers, so different manufacturers used different formats. VINs were first used in 1954 in the United States.

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