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.
Population Trends: Population change for Grafton totaled 930 over 54 years, from 348 in 1960 to 1,278 in 2014. The largest decennial percent change was 100 percent between 1970 and 1980, nearly doubling the population over those ten years. The 2014 Census estimate for Grafton was 1,278 residents, which ranked 172nd among New Hampshire's incorporated cities and towns. Population Density and Land Area, 2014 (US Census Bureau): 30.7 persons per square mile of land area. Grafton contains 41.6 square miles of land area and 0.8 square miles of inland water area. Economic & Labor Market Information Bureau, NH Employment Security, January 2016.