There is a check digit calculation which is compulsory in the US. The way the system works is that in order to validate a vehicle identification number through the vehicle identification number check digit, either the buyer removes the check digit or multiplies it with zero.
Grafton is a town in Worcester County, Massachusetts, United States. The population, indicated by the 2014 town records is 14, 268, in nearly 5,700 households. Incorporated in 1735, Grafton is the home of a Nipmuc village known as Hassanamisco Reservation, the Willard House and Clock Museum, Community Harvest Project, and the Tufts University Cummings School of Veterinary Medicine.
The population was 4,132 at the 2000 census. The Town of Grafton is located about 20 miles north of downtown Milwaukee on the shore of Lake Michigan. It is east of the village of Grafton and the Town of Cedarburg, south of the Town of Port Washington, and north of the city of Mequon.