Miss. Code Ann. § 65-7-45: Miss. Code Ann. § 65-7-45

The board of supervisors of any county in this state may, at the discretion of such board, regulate the maximum load of any vehicle using the public roads and bridges of such county, or any section or length of any public road, or any particular bridge in such county by order spread on its minutes, which order shall, before being in full force and effect, be first published in a newspaper published in the county for three (3) consecutive weeks, whereupon such resolution shall be in force and effect.