Governor John Hickenlooper made it official on Tuesday: Colorado is the first state in the country to make recreational marijuana use regulated and legal.
The politician was an opponent of legalizing the drug when it was up for a vote in November, but residents made their voices heard at the polls.
"Recreational marijuana really is new territory," Hickenlooper said at this week's signing, changing his tune a bit and referring to the new law as "common sense."
According to the new guidelines, Colorado adults - ages 21 and over - will be limited to buying up to an ounce of pot for recreational use from specialty licensed retail shops.
They can also grow up to six plants at home.
In order to take advantage of this law and help the state out economically, a marijuana tax may someday be implemented.
"We applaud Gov. Hickenlooper for the initiative he has taken to ensure the world's first legal marijuana market for adults will entail a robust and comprehensive regulatory system" said Mason Tvert, director of communications for the Marijuana Policy Project.
"This marks another major milestone in the process of making the much-needed transition from a failed policy of marijuana prohibition to a more sensible system of regulation."
What do you think? Should marijuana be legalized?