When California voters approved Proposition 64 on Tuesday, the basic idea was simple: a majority of people in America’s most populous state believe that adults should be able to consume marijuana if they feel like it, like a glass of wine at 5 o’clock. But the details of the proposition, which stretches more than 60 pages, are complicated.

TIME spoke to Amanda Reiman, the Drug Policy Alliance’s manager of marijuana law and policy, to talk about what people should know.

What happened on Tuesday?

By a margin of about 56% to 44%, voters passed Proposition 64, making California the fifth state to legalize recreational pot, after Colorado, Washington, Oregon and Alaska. Later in the evening, results came in showing that voters in Massachusetts and Nevada did the same. The vote happened 20 years after California became the first state to legalize medical marijuana in 1996.

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