On Nov. 3, voters in Arizona approved Proposition 207, an initiative that decriminalized personal possession and use of marijuana in an amount less than 1 ounce and limits personal cultivation of marijuana by a person 21 and older.On Nov. 3, voters in Arizona approved Proposition 207, an initiative that decriminalized personal possession and use of marijuana in an amount less than 1 ounce and limits personal cultivation of marijuana by a person 21 and older.