What is a medical cannabis program? A medical cannabis program is a treatment plan that makes use of medical cannabis. It has a set of rules and regulations that have to be implemented strictly so as to effectively treat various types of illnesses using particular amounts of medical cannabis. When did Colorado implement its medical cannabis program? Colorado approved its medical cannabis law on November 7, 2000 after receiving 54% of the votes. It was made effective on June 1, 2001.Who ...