Ohio Medical Marijuana HB-523 For more information on Ohio Medical Marijuana HB-523, visit the official website for the Ohio MMJ Control Program: medicalmarijuana.ohio.gov HB-523 was signed into law by Governor John Kasich on June 8th, 2016.  It became Law on September 9th, 2016. But because cannabis is highly regulated in Ohio under this program, it has 4 levels of Licenses. … Continue reading Ohio Medical Marijuana HB-523