Section 2743.18 - Prejudgment interest - interest on judgment or determination(A)(1) Prejudgment interest shall be allowed with respect to a civil action on which a judgment or determination is rendered against the state for the same period of time and at the same rate as allowed between private parties to a suit.(2) The court of claims, in its discretion, may deny prejudgment interest for any period of undue delay between the commencement of the civil action and the entry of a judgment or determination against the state, for which it finds the claimant to have been responsible.(B)(1) Except as otherwise provided in division (B)(2) of this section, interest shall be allowed on a judgment or determination rendered against the state in a civil action pursuant to this chapter at the same rate that is applicable to judgments rendered against private parties to a suit as specified in section 1343.03 of the Revised Code and for each day between the date of entry of the judgment or the determination pursuant to division (C) of section 2743.10 of the Revised Code and the date of payment of the judgment or determination pursuant to division (C)(3) or (6) of section 2743.19 of the Revised Code, or for sixty days from the date of entry of the judgment or the determination, whichever is less.(2) If the court of claims renders a judgment pursuant to this chapter against the state in a civil action or the clerk of the court of claims enters an administrative determination under section 2743.10 of the Revised Code against the state in a civil action, the civil action is not based on tortious conduct, and the claimant in the court of claims prevails in any appeal of the judgment or determination, postjudgment interest shall be paid with respect to the judgment or determination rendered against the state at the same rate that is applicable to judgments rendered against private parties to a suit as set forth in section 1343.03 of the Revised Code and for each day between the date of entry of the judgment or determination and the date of payment of the judgment or determination pursuant to division (C)(3) or (6) of section 2743.19 of the Revised Code.Effective Date: 7/6/2001 .