Ohio Rev. Code Ann. § 5301.80
As used in sections 5301.80 to 5301.92 of the Revised Code:
(E) "Environmental response project" means a plan or work performed for environmental remediation of real property or for protection of ecological features associated with real property and conducted as follows:
(1) Under a federal or state program governing environmental remediation of real property that is subject to agency review or approval, including property that is the subject of any of the following: