Ohio Rev. Code Ann. § 4723.50
(B) The board shall adopt rules under this section that do all of the following:
(3) Establish criteria for the components of the standard care arrangements described in section 4723.431 of the Revised Code that apply to the authority to prescribe, including the components that apply to the authority to prescribe schedule II controlled substances. The rules shall be consistent with that section and include all of the following:
(7) Establish standards and procedures for the appropriate conduct of an externship as described in section 4723.484 of the Revised Code, including the following: