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, but not limited to, property that is the subject of any of the following: