No county, municipality or other political subdivision shall enact any ordinance restricting the use of cellular phones in any motor vehicle until such time as the state may authorize a county, municipality or other political subdivision to enact such an ordinance.
Localities prohibited from enacting ordinances restricting cell phone use in motor vehicles
Miss. Code Ann. § 63-3-212, under Obedience to and Effect of Traffic Laws.
Miss. Code Ann. § 63-3-212