Miss. Code Ann. § 65-3-71.104

(1) That segment of Mississippi Highway 30 lying in Tishomingo County beginning at the Prentiss/Tishomingo county line and extending to the entrance road of the Natchez Trace Parkway shall be designated and known as the “J.O. Southward, Jr., Memorial Highway.” (2) The Mississippi Department of Transportation shall erect and maintain appropriate signs along and approaching the segment of highway described in subsection (1) of this section.