Webregister your vehicle or renew registration. When using this online service, enter your license plate number for vehicles or cf number for vessels/boats and vehicle. In order to process your renewal, you must be the person named on the renewal notice and not have a change of address. If you wish to apply for a. Webenter the last 5 digits of the vehicle identification number (vin) or vessel hull identification number (hin). To remind you that you need to renew your registration, dmv will mail you a renewal notice 60 days before.