Voters rejected a similar measure, Proposition 19, by a narrow margin in 2010. But as the Los Angeles Times reports, advocates “say the new measure has a better chance because it adds more regulation at the state level rather than letting locals dictate what happens, and comes after the state has approved a regulatory system for medical marijuana growing, transportation and sales.”

And since the 2010 vote, several other western states have legalized recreational marijuana use. “This is six years later. We’ve already seen legalization pass and be successful in other states. So it’s a different world in talking about his issue than it was,” Taylor West, deputy director of the National Cannabis Industry Association, tells the Times.

Read more: http://www.mprnews.org/story/2016/06/29/npr-california-to-vote-on-legalizing-recreational-marijuana