Ohio Rev. Code § 3752.02: Exceptions.

Nothing in this chapter or rules adopted under it applies to any of the following:

(A) Oil or gas production operations regulated under Chapter 1509. of the Revised Code and rules adopted under it;

(B) Equipment, petroleum, or piping owned or operated by a public utility as defined in section 4905.02 of the Revised Code or other electric light company as defined in section 4905.03 of the Revised Code or by a subsidiary of such a public utility or electric light company;

(C) Any tank or underground storage tank system regulated under sections 3737.87 to 3737.98 of the Revised Code and rules adopted under them;

(D) Except as otherwise specifically provided in sections 3752.11, 3752.111, and 3752.113 of the Revised Code, any person to which those sections apply.