A United Nations commission voted on Wednesday to remove cannabis for medicinal purposes from a category of the world’s most dangerous drugs, a highly anticipated and long-delayed decision that could clear the way for an expansion of marijuana research and medical use.

The vote by the Commission for Narcotic Drugs, which is based in Vienna and includes 53 member states, considered a series of recommendations from the World Health Organization on reclassifying cannabis and its derivatives. But attention centered on a key recommendation to remove cannabis from Schedule IV of the 1961 Single Convention on Narcotic Drugs — where it was listed alongside dangerous and highly addictive opioids like heroin.

Experts say that the vote will have no immediate impact on loosening international controls because governments will still have jurisdiction over how to classify cannabis. But many countries look to global conventions for guidance, and United Nations recognition is a symbolic win for advocates of drug policy change who say that international law is out of date.

“This is a huge, historic victory for us, we couldn’t hope for more,” said Kenzi Riboulet-Zemouli, an independent researcher for drug policy who has closely monitored the vote and the position of member states. He said that cannabis had been used throughout history for medicinal purposes and that the decision on Wednesday reinstated that status. [Read more at The New York Times]