Ohio Rev. Code Ann. § 3930.03
(A) The Ohio commercial insurance joint underwriting association is hereby created, consisting of all insurers authorized to write and engaged in writing within the state, on a direct basis, commercial insurance, including the liability component of commercial multi-peril insurance. Every such insurer shall be a member of the association and shall remain a member as a condition of its authority to continue to transact such kind of business in this state, notwithstanding other prohibitions or authorizations provided in the Revised Code, nor shall participation in the association by any insurer required to participate in such association constitute the writing of a line of insurance otherwise prohibited by the laws of this state. The association shall be administered by a board of governors. It shall be activated for a particular class of insurance only by rule of the superintendent of insurance adopted pursuant to Chapter 119. of the Revised Code upon a finding by the superintendent that both of the following circumstances exist for that particular class of insurance:
(C) There shall be a plan of operation promulgated under division (D) of this section. Pursuant to sections 3930.01 to 3930.18 of the Revised Code and the plan of operation with respect to commercial insurance promulgated under division (D) of this section, the association may:
(D)