The proposed initiative (I-100) would have made the possession of up to one ounce of marijuana legal for individuals 21 and older under city ordinances.
After a campaign in which the relative harms of marijuana and alcohol were repeatedly highlighted, the initiative passed November 1, 2005, by a 53.5% to 46.5% margin.
[6] In December 2005, the SAFER Voter Education Fund announced that it would be supporting a statewide campaign in Colorado to make the possession of up to one ounce of marijuana legal under state law.
In August 2006, the Colorado Secretary of State announced that the campaign had collected enough signatures to qualify for the November 2006 ballot.
SAFER has modeled its campaigns after People for the Ethical Treatment of Animals, pulling publicity stunts such as a "Drug Duel" in which Mason Tvert challenged Mayor John Hickenlooper and beer baron Pete Coors to drink beer while he smoked cannabis, to see who would be the last man standing.