Mississippi Code Title 63. Motor Vehicles and Traffic Regulations § 63-21-31

(1) If an owner transfers his interest in a vehicle, manufactured home or mobile home, other than by the creation of a security interest, he shall, at the time of the delivery of the vehicle, manufactured home or mobile home, execute an assignment and warranty of title to the transferee in the space provided therefor on the certificate or as the State Tax Commission prescribes, and cause the certificate and assignment to be mailed or delivered to the transferee.

(2) Except as provided in Section 63-21-35, the transferee shall, promptly after delivery to him of the vehicle, manufactured home or mobile home, execute the application for a new certificate of title in the space provided therefor on the certificate or as the commission prescribes, and cause the certificate and application to be delivered to a designated agent. If however, the transferor is not a designated agent, the certificate and application shall be processed by a county tax collector or a designated agent.

(3) Upon request of the owner or transferee, a lienholder in possession of the certificate of title shall, unless the transfer was a breach of his security agreement, deliver the certificate to the transferee. Upon receipt of the certificate the transferee shall make application to a designated agent for a new certificate as required by Section 63-21-15. The delivery of the certificate does not affect the rights of the lienholder under his security agreement.

(4) If a security interest is reserved or created at the time of the transfer, the certificate of title shall be retained by or delivered to the person who becomes the lienholder and the parties shall comply with the provisions of Section 63-21-47.

(5) Except as provided in Section 63-21-35, and as between the parties, a transfer by an owner is not effective until the provisions of this section have been complied with.