Ohio Rev. Code Ann. § 3750.13
(A)
(1) Except as provided in division (A)(3) or (4) of this section, the owner or operator of a facility required to annually file an emergency and hazardous chemical inventory form under section 3750.08 of the Revised Code shall submit with the inventory form a filing fee of one hundred fifty dollars. In addition to the filing fee, the owner or operator shall submit with the inventory form the following additional fees for reporting inventories of the individual hazardous chemicals and extremely hazardous substances produced, used, or stored at the facility:
(4) An owner or operator who is regulated under Chapter 1509. of the Revised Code and who submits information under section 1509.231 of the Revised Code for not more than twenty-five facilities shall submit to the emergency response commission on or before the first day of March a flat fee of fifty dollars if the facilities meet all of the following conditions: