Note that depending on the vehicle and the reason for registering it, there may be some other forms that must also be filled out before, during or after filing Form REG 343. Is re-registering a vehicle that has been junked, salvaged, or removed from a database.Is renewing the registration for their vehicle.Has recently moved into the state of California.Has purchased a new vehicle from a person or dealership.The CA application for title and registration form must be filled out by a person who fits one or more of the following criteria: After filing the form and paying the necessary fees (which will vary by state), the state’s DMV office will then issue a registration certificate and license plates for the vehicle. This is because each state uses vehicle registration as a way to keep track of who owns what vehicle, and to provide data on criminal activity or for assessing taxes. It can also be used to re-register a car that has been junked or removed from a database, or is being brought in from out of state.Ĭar owners in the US must register their vehicle with their state’s DMV office after buying a vehicle, moving to another state, or when renewing their registration. Filing the REG 343 form is required to register a new car in California or register a new owner of a vehicle upon transfer of ownership, such as through purchasing a car from a person or dealership. Form REG 343, Application for Title or Registration, also called the California application for title or registration form, is a Department of Motor Vehicles (DMV) form for registering one’s vehicle in the state of California.