The Massachusetts Patient Advocacy Alliance (MPAA) represents the coalition of patients, caregivers, family members, medical professionals, and public health groups that helped draft and pass the 2012 ballot question to legalize medical marijuana. Since the medical marijuana law was passed, MPAA has worked continuously with the Department of Public Health and other stakeholders during the roll out of medical marijuana to ensure implementation of the law was completed in a manner that worked for both individual patients and communities as a whole. We continue working everyday for safe access as we lead medical cannabis into the mainstream through our educational events and materials, advocacy, research, and our efforts to protect patient rights.