Ohio Rev. Code § 5589.32
No person, firm, or corporation shall erect, display, or maintain an advertising or other sign on, along, or near any public highway, in any county of this state, which resembles the highway crossing signs which steam and interurban railroads have erected, in compliance with section 4955.33 of the Revised Code, at the crossings of public roads and railroads.
The public utilities commission shall enforce this section, prosecute any violations thereof, and order the removal of any such prohibited sign.
The attorney general and the prosecuting attorney of any county shall carry into effect the orders of the commission made under this section and shall prosecute any violations of such orders.
Each day that any violation of this section continues constitutes a separate offense. The erection, display, or maintenance of each advertising or other sign referred to in this section, except as provided in section 4955.33 of the Revised Code, constitutes a separate offense.
R.C. §5589.32