Mississippi Code
Subpart 1 - Law Governing Perfection and Priority
§ 75-9-301. Law governing perfection and priority of security interests

Except as otherwise provided in Sections 75-9-303 through 75-9-306, the following rules determine the law governing perfection, the effect of perfection or nonperfection, and the priority of a security interest in collateral:
Perfection of a security interest in the goods by filing a fixture filing;
Perfection of a security interest in timber to be cut; and
The effect of perfection or nonperfection and the priority of a nonpossessory security interest in the collateral.