Ohio Rev. Code Ann. § 2305.232
(A) No person who gives aid or advice in an emergency situation relating to the prevention of an imminent release of hazardous material, to the clean-up or disposal of hazardous material that has been released, or to the related mitigation of the effects of a release of hazardous material, nor the public or private employer of such a person, is liable in civil damages as a result of the aid or advice if all of the following apply:
(1) The aid or advice was given at the request of:
(D) As used in this section: