Ohio Rev. Code Ann. § 149.311
(A) As used in this section:
(2) "Qualified rehabilitation expenditures" means expenditures paid or incurred during the rehabilitation period, and before and after that period as determined under 26 U.S.C. 47, by an owner or qualified lessee of an historic building to rehabilitate the building. "Qualified rehabilitation expenditures" includes architectural or engineering fees paid or incurred in connection with the rehabilitation, and expenses incurred in the preparation of nomination forms for listing on the national register of historic places. "Qualified rehabilitation expenditures" does not include any of the following:
(8) "Rehabilitation period" means one of the following:
(B) The owner or qualified lessee of an historic building may apply to the director of development services for a rehabilitation tax credit certificate for qualified rehabilitation expenditures paid or incurred by such owner or qualified lessee after April 4, 2007, for rehabilitation of an historic building. If the owner of an historic building enters a pass-through agreement with a qualified lessee for the purposes of the federal rehabilitation tax credit under 26 U.S.C. 47, the qualified rehabilitation expenditures paid or incurred by the owner after April 4, 2007, may be attributed to the qualified lessee. The form and manner of filing such applications shall be prescribed by rule of the director. Each application shall state the amount of qualified rehabilitation expenditures the applicant estimates will be paid or incurred. The director may require applicants to furnish documentation of such estimates. The director, after consultation with the tax commissioner and in accordance with Chapter 119. of the Revised Code, shall adopt rules that establish all of the following:
(C) The director of development services shall review the applications with the assistance of the state historic preservation officer and determine whether all of the following criteria are met:
(3) That receiving a rehabilitation tax credit certificate under this section is a major factor in:
(D)
(6) The director of development services may approve the application of, and issue a rehabilitation tax credit certificate to, the owner of a catalytic project, provided the application otherwise meets the criteria described in divisions (C) and (D) of this section. The director may not approve more than one application for a rehabilitation tax credit certificate under division (D)(6) of this section during each state fiscal biennium. The director shall not approve an application for a rehabilitation tax credit certificate under division (D)(6) of this section during the state fiscal biennium beginning July 1, 2017, or during any state fiscal biennium thereafter. The director shall consider the following criteria in determining whether to approve an application for a certificate under division (D)(6) of this section:
(7)
(F)