Recreational consumption of Marijuana is still illegal. However, the state has legalized Marijuana for medicinal purposes. Patients must have a debilitating condition such as Cancer, and a doctor must prescribe a medical Marijuana card. On another note, there are 14 cities, Ann Arbor as an example, that have decriminalized Marijuana. This means that while it is still illegal state wide to possess Marijuana for non-medical reasons, these 14 cities will only issue a small fine, not bring charges against you, if you are caught with small amounts.