Miss. Code § 77-7-15
The commission shall prescribe, issue, amend and rescind such reasonable rules and regulations as may be reasonably necessary or appropriate to carry out the provisions of this chapter concerning certificates of public convenience and necessity, permits, performance bond, insurance, statutorily prescribed fees, identification plates and trip permits, and carrier duties, service, rates and charges; however, the prescription, issuance, amendment and rescission of reasonable rules and regulations concerning the enforcement of the provisions of this chapter on the roads, streets and highways of this state shall fall under the jurisdiction of the department, through the division, and shall not be subject to this section.
No rule or regulation shall be effective until thirty (30) days after copies of the proposed rule or regulation have been mailed to intrastate motor carriers affected thereby and until a notice, setting forth the terms or substance thereof and the time and place of a hearing thereon, has been published in a newspaper or newspapers of general circulation in the state and filed with the Secretary of State pursuant to the Mississippi Administrative Procedures Law. Such hearing may be held at any time after twenty (20) days following the date of publication of such notice, but such rules or regulations shall not become effective until a hearing thereon. The commission may make its initial set of rules and regulations effective at the end of such thirty-day period, subject to review thereof. All rules and regulations of the commission shall be filed with its secretary and shall be readily available for public inspection and examination during reasonable business hours. Any interested person shall have the right to petition the commission for issuance, amendment or repeal of a rule or regulation.
Miss. Code § 77-7-15