On Tuesday night, Amendment 64 — the measure seeking the legalization of marijuana for recreational use by adults — was passed by Colorado voters, making Colorado the first state to end marijuana prohibition in the United States.

Although Colorado “legalized it,” it will be several months, perhaps as long as a year, before Colorado adults 21-and-over can enjoy the legal sale of marijuana. However, the parts of the amendment related to individual behavior will go into effect as soon as Governor Hickenlooper certifies the results of the vote, a proclamation he is obligated to do within 30 days of the election, The Colorado Independent reported.

It’s a huge victory for the Campaign To Regulate Marijuana Like Alcohol, the pro-pot group behind Amendment 64. “Over the past eight years in Colorado, we have argued that it is irrational to punish adults for choosing to use a product that is far less harmful than alcohol,” Mason Tvert, co-director of the campaign, said in a statement. “Today, the voters agreed. Colorado will no longer have laws that steer people toward using alcohol, and adults will be free to use marijuana instead if that is what they prefer. And we will be better off as a society because of it.”

This is the second time Colorado voted on legal weed, in 2006 Coloradans voted the measure down, but not in 2012.