Mississippi Code Title 63. Motor Vehicles and Traffic Regulations § 63-21-257

(a) Affect an interest or right of the owner or owners making the designation, including the right to transfer or encumber the motor vehicle that is the subject of the designation;

(b) Create a legal or equitable interest in favor of the designated beneficiary in the motor vehicle that is the subject of the designation, even if the beneficiary has actual or constructive notice of the designation;

(c) Affect an interest or right of a secured or unsecured creditor or future creditor of the owner or owners making the designation, even if the creditor has actual or constructive notice of the designation; or

(d) Affect an owner's or the designated beneficiary's eligibility for any form of public assistance, subject to applicable federal law.