Miss. Code Ann. § 65-1-67

The State Highway Commission is hereby authorized, empowered, and directed to have the State Highway Department trim with edge lines, of a color and in a manner which conforms with uniform national standards relating thereto which have been adopted by the Federal Highway Administration, the edges of all state-designated hard-surfaced highways which are constructed of asphaltic material, in the interest of public safety on said highways. The commission is authorized and directed to have the highway department utilize its engineers and other highway department employees and to expend available public funds for carrying out the intent and purposes of this section.

Except as necessary to accommodate reconstruction, no road or highway shall be opened for public use until the department has complied with the provisions of this section; however, the Director of the State Highway Department may permit segments of roads under contract for maintenance, construction or reconstruction to be open for public use when temporary center line markings are installed. Roadside pennant signs may be used in place of temporary center line markings in no passing lanes on seal-coated roads. All such temporary center lines or roadside pennant signs shall, as nearly as practicable, be in place before work is discontinued for the day or as soon thereafter as weather conditions permit.