Proposition 207, the Safe and Smart Act, passed into law in November 2020 and legalized marijuana for adult personal use. Recreational Marijuana Use Is Now Legal in Arizona for People Aged 21 and Older.Is Arizona a recreational state? Arizona legalized recreational marijuana use in 2020. Proposition 207 legalized the possession and use of marijuana for adults (age 21 years or older) in Arizona. Voters in Arizona passed Prop 207, a statewide ballot initiative legalizing the possession, use, and commercial sale of marijuana for adults. Cannabis in Arizona is legal for recreational use. Under the newly passed Prop 207, certain marijuana convictions in Arizona can be expunged beginning on July 12, 2021. Our map shows current state laws and recentlyapproved ballot measures legalizing marijuana for medical or recreational purposes.