Ohio Rev. Code Ann. § 4121.442
(A) The administrator of workers' compensation shall develop standards for qualification of health care plans of the Ohio workers' compensation qualified health plan system to provide medical, surgical, nursing, drug, hospital, and rehabilitation services and supplies to an employee for an injury or occupational disease that is compensable under this chapter or Chapter 4123., 4127., or 4131. of the Revised Code. In adopting the standards, the administrator shall use nationally recognized accreditation standards. The standards the administrator adopts must provide that a qualified plan provides for all of the following: