Ohio Revised Code Title LV. Roads Highways Bridges § 5516.062

(A) No person shall erect, use, maintain, operate, construct, or cause or permit to be erected, used, maintained, operated, or constructed any advertising device that is located both inside an urban area, as defined by section 5516.061 of the Revised Code, and outside the boundaries of a municipal corporation as such boundaries existed on September 21, 1959, without first obtaining a permit and permit plates from the director of transportation pursuant to section 5516.10 of the Revised Code.

(B) An advertising device existing prior to the effective date of this section which would be illegal under this section shall be considered a nonconforming advertising device and may be maintained subject to the permit provisions of section 5516.10 of the Revised Code.