In Ohio, a medical marijuana certification is generally valid for one year from the date it is issued. After that, patients must be re‑evaluated by a certified physician and renew their registration with the Ohio Medical Marijuana Control Program to continue accessing dispensaries.
If the certification expires, patients cannot legally purchase medical marijuana until they complete the renewal process. The renewal involves scheduling a new physician visit, having the doctor submit an updated certification, and paying the annual registration fee to the state.