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Data Elements
The vPICDecode file has 127 VIN decoded data elements, excluding key data elements. The
number of key data elements vary for different studies that have vPICDecode files. A list of the
key data elements can be found in each of NHTSA’s crash data collection program’s Analytical
User’s Manual (AUM), such as FARS AUM, CRSS AUM, and CISS AUM, etc.
The vPICTrailerDecode file has 23 VIN decoded data elements excluding key data elements.
This file only includes the data elements that are applicable to trailing units.
Error Code
When a VIN is decoded, one or more errors might be provided in the output. Cleanly decoded
VINs are those that have only one or more of the following error codes when they are decoded.
• 0 - VIN decoded clean. Check Digit (9th position) is correct.
• 1 - Check Digit (9th position) does not calculate properly.
• 10 - Off-road Vehicle Warning – This is not a vehicle identification number (VIN) for a
motor vehicle. This indicates that the manufacturer did not certify this product as
complying with the Federal motor vehicle safety standards which are applicable to motor
vehicles as defined at 49 U.S.C. 30102.
• 400 - Invalid Characters Present
When a VIN is decoded, there can be errors applicable to the decode. In such a situation, the
error codes are concatenated and separated by a comma. For example, error code combinations
for cleanly decoded VINs can include (0), (0,10), (1,10), (1, 400), (1, 10, 400).
In the VIN decode files, even though Error Code data element is lookup data type, only
concatenated error code IDs, not the concatenated error code names, are presented due to the size
concern of the concatenated name string.
Vehicle Descriptor
A VIN has 17 positions. Depending on the manufacturer production capabilities, some of the
positions contain a sequential number for the vehicle. To avoid releasing the full VIN that might
be used to link to personally identifiable information, vPIC decode file only contains the
characters excluding the sequential numbers and check digit number called a vehicle descriptor.
• For vehicle manufacturers that produce more than 2,000 vehicles annually, the vehicle
descriptor is positions 1 to 8, 10 and 11;
• For vehicle manufacturers that produce 2,000 or fewer vehicles annually, the vehicle
descriptor is positions 1 to 8 and 10 to 14.
Model Year
There are two sources for vehicle MY:
• The 10th digit of a VIN specifies vehicle MY, and Vehicle MY can also be reported on a
police crash report (PCR).