Ohio Rev. Code § 4121.23
Any employer or other person interested either because of ownership in or occupation of any property affected by any order of the bureau of workers' compensation, or otherwise, may petition for a hearing on the reasonableness and lawfulness of any bureau order.
The petition for hearing shall be by verified petition, filed with the bureau, setting out specifically and in full detail the order upon which a hearing is desired and every reason why the order is unreasonable or unlawful, and every issue to be considered by the bureau on the hearing. The petitioner shall be deemed to have finally waived all objection to any irregularities and illegalities in the order upon which a hearing is sought other than those set forth in the petition. All hearings of the bureau shall be open to the public.
Upon receipt of the petition, if the issues raised in the petition have theretofore been adequately considered, the bureau shall determine the same by confirming, without hearing, its previous determination, or if a hearing is necessary to determine the issues raised, the bureau shall order a hearing thereon and consider and determine the matters in question at the time prescribed.
Notice of the time and place of the hearing shall be given to the petitioner and to such other persons as the bureau finds directly interested in the decision.
Upon an investigation, if it is found that the order complained of is unlawful or unreasonable, the bureau shall substitute a lawful and reasonable order therefor.
Whenever at the time of final determination upon hearing it is found that further time is reasonably necessary for compliance with the order of the bureau, the bureau shall grant such time as is reasonably necessary for compliance.
R.C. §4121.23