Ohio Rev. Code § 4123.05
The bureau of workers' compensation shall adopt rules to regulate and provide for the kind and character of notices, and the services thereof, in cases of injury, occupational disease, or death resulting from either, to employees, the nature and extent of the proofs and evidence, and the method of taking and furnishing the same, and to establish the right to benefits or compensation from the state insurance fund, the forms of application of those claiming to be entitled to benefits or compensation, and the method of making investigations, physical examinations, and inspections. Nothing in this section shall be interpreted as affecting or limiting the rule-making authority of the industrial commission under this chapter or Chapter 4121. of the Revised Code.
R.C. §4123.05