To protect yourself, file a Vehicle Transfer Notification. Notify the TxDMV that I sold my vehicle, register my vehicle with the TxDMV, transfer my license plates.Dallas, TX 75313-9033. Mail your documents to: City of Dallas, P.O. Box 650302, Dallas, Texas 75265-0302. You must complete a Texas Motor Vehicle Transfer Notification and mail it to: Federal Tax ID number (EIN) or social security number for person filing the lien. As per the administrative rules, a VSF is responsible for sending two notices to the owner and lienholders regarding the status of an unclaimed vehicle. Motorists. How It Works: Do the Two Step. Ready for "Two Steps, One Sticker? Available Forms: Exemption Forms, Business Personal Property Forms, Other Forms, Human Resources.