That’s not the only thing that will differ, province to province. The list includes legal age, whether you can grow legal marijuana at home, and where you can actually smoke it. We’ve put together a guide to help you sort out the new rules.

[Read: Canada Is Legalizing Cannabis. Here’s What You Need to Know.]

The government has said that one of its goals for the heavily regulated system is to put the brakes on the growth in marijuana use by Canadians, and to keep it away from children. We are, by global standards, something of a land of potheads. Catherine made her way through the haze of the underground scene to get a sense of how cannabis culture will change with legalization.

Mixed in with celebration, there’s consternation among some previously illicit users.

“Some people are referring to this as Prohibition 2.0,” a sociologist who studies cannabis users told Catherine. “The regulation has brought an enhanced sense of scrutiny.”

[Read: Canadians Already Smoke a Lot of Pot. Now It’s About to Become Legal.]