For supporters of the state laws, the policy marked a milestone that they believe will boost their efforts to legalize marijuana in other states, including Oregon, Nevada, Massachusetts and Alaska. But for those who have been fighting the legalization of marijuana, the announcement increased their concern.
On the other side Alex Cooley, co-founder of Solstice, said to be the first legal cannabis-growing facility in Washington state, called the action a "very large step forward," but that he expected the controversy to continue. "It is not the end of the war on the prohibition of cannabis."
But conflict between the Colorado and Washington state laws and federal law — which still considers marijuana a Schedule I drug, along with cocaine and heroin — had been a source of tension and confusion.
"I do think it will bring some level of relief or comfort," said Rachel Gillette, the Colorado executive director of the National Organization for the Reform of Marijuana Laws. "You can operate without fear the [Drug Enforcement Administration] is going to come seize your property and send you to prison."
But the policy also represents something larger. "It's a loud statement from the Obama administration that their intent is to let the experiment happen," said John Davis, executive director of the Washington state-based Coalition for Cannabis Standards and Ethics.
"It's huge," he said. "The fact it mentions adult recreational use is historic."