The Colorado Bill of Sale for a Motor Vehicle is a legal document used to transfer the ownership of a motor vehicle from the seller to the buyer. It is required for all transactions involving the sale of a motor vehicle in the state of Colorado. The document serves as proof that the vehicle has been legally transferred and is now owned by the buyer. It also provides the buyer with proof of ownership for the vehicle. There are two types of Colorado Bill of Sale for a Motor Vehicle: the Private Party Bill of Sale and the Certified Bill of Sale. The Private Party Bill of Sale is signed by the seller and buyer and is typically used when the vehicle is bought from an individual (not a dealership). It must include the vehicle's make, model, year, VIN number, and odometer reading; the date of the sale; the sale price; and the buyer and seller's names and signatures. The Certified Bill of Sale is used when purchasing a vehicle from a registered dealer and must include the same information as the Private Party Bill of Sale, as well as the dealer's name and signature. It must also be notarized. Both forms of Colorado Bill of Sale for a Motor Vehicle are important documents and must be kept in a safe place to provide proof of ownership in the future.