The state highways and transportation commission is required to issue one-time permanent permits as provided in section 226.550 for the erection and maintenance of outdoor advertising along the interstate and primary highway systems and subject to section 226.540 to promulgate only those rules and regulations of minimal necessity and consistent with customary use to secure to this state any federal aid contingent upon compliance with federal laws, rules and regulations relating to outdoor advertising. No rule or portion of a rule promulgated under the authority of this section shall become effective unless it has been promulgated pursuant to the provisions of section 536.024.
§ 226.530, RSMo