Ohio Rev. Code Ann. § 4123.291
(B) An employer who is adversely affected by a decision of an adjudicating committee appointed by the administrator may appeal the decision of the committee to the administrator or the administrator's designee. The employer shall file the appeal in writing within thirty days after the employer receives the decision of the adjudicating committee. Except as otherwise provided in this division, the administrator or the designee shall hold a hearing and consider and issue a decision on the appeal if the decision of the adjudicating committee relates to one of the following: