Ohio Rev. Code Ann. § 3796.031
(A) The director of commerce may, in accordance with Chapter 119. of the Revised Code, adopt rules that establish a closed-loop payment processing system under which the state creates accounts to be used only by registered patients and caregivers at licensed dispensaries as well as by all license holders under this chapter. The system may include record-keeping and accounting functions that identify all parties involved in those transactions. The purpose of the system is to prevent all of the following: