Section 65-3-71.57 - "31st Infantry Division Memorial Highway" designated(1) That portion of U.S. Interstate 20 within the State of Mississippi shall be known as the "31st Infantry Division Memorial Highway."(2) The Mississippi Department of Transportation shall erect and maintain appropriate signs along and approaching such highway. Laws, 2000, ch. 572, § 2; Laws, 2001, ch. 606, § 2, eff. 7/1/2001.