Miss. Code Ann. § 65-3-8: Miss. Code Ann. § 65-3-8

When the Mississippi Department of Transportation designates a bridge as failing to meet the design, standard, sufficiency rating or any other criteria required for allowing certain weight limits on that specific bridge and revises the allowable weight limits for that bridge, no citation may be issued to the driver of a vehicle for violations of the revised weight limits for that bridge until twenty-four (24) hours have elapsed from the completion of the installation of a sign posted on or near the bridge indicating that the allowable weight limits applicable to that bridge have been revised.