Ohio Rev. Code § 4909.157: Cost recovery mechanisms prohibited.

(A) Except for a cost recovery mechanism provided under division (C)(1)(a) of section 4909.15 of the Revised Code, a natural gas, water-works, or sewage disposal system company that applies for a forecasted test period under that division shall not request, and the public utilities commission shall not approve, any rider or other cost recovery mechanism to recover capital investment that would be in addition to the company's base rates.

(B) Upon rates going into effect based on a company's use of a forecasted test period under division (C)(1)(a) of section 4909.15 of the Revised Code, any riders and other cost recovery mechanisms previously approved to recover capital investment for the company shall terminate.

(C) Notwithstanding divisions (A) and (B) of this section, a natural gas company may still apply for, or continue collecting from, an infrastructure development rider under section 4929.161 of the Revised Code.