Miss. Code Ann. § 19-29-25

An authority is authorized to adopt, amend and repeal such reasonable resolutions, rules, regulations and orders as it shall deem necessary for the management, government and use of any railroad properties and facilities owned by it or under its control. No rule, regulation, order or standard prescribed by the commission shall be inconsistent with, or contrary to, this chapter, or any act of the Congress of the United States or any regulation promulgated or standard established pursuant thereto. The authority shall keep on file at the principal office of the authority for public inspection a copy of all its rules and regulations.