A Manufacturer's Certificate of Origin (MCO) is an official record that validates the origin of a vehicle and acts as proof of ownership. It is issued by the supplier of a vehicle or leisure product, such as an ATV, UTV, motorbike, or boat. The MCO frequently contains details about the producer, year and model along with vehicle identification number (VIN), as well as possible additional information on the car's specs, manufacturing date, and warranty information.