vehicle identification number (VIN)

A vehicle identification number (VIN) is a unique alphanumeric code assigned to a specific motor vehicle to identify it. For most modern vehicles, the VIN is a standardized 17-character number that can indicate information such as the vehicle's manufacturer, model year, body type, engine, assembly plant, and production sequence. In an auto insurance context, insurers use the VIN to verify the covered vehicle, support underwriting and rating, check vehicle history or prior losses, process claims, confirm title or registration information, and help prevent fraud. An incorrect or missing VIN can affect policy issuance, pricing, proof of insurance, lienholder records, or claim handling.