Vermont becomes the ninth state to legalize marijuana and the first state to do so through its state legislature. Gov. Phil Scott signed the law in January with "mixed emotions."

The law allows adults to possess up to 1 ounce of marijuana, two mature and four immature plants.

But authorities can't answer some questions and say clarity of the rules will come with case law. Some examples include how police will enforce the one-ounce marijuana limit when it comes to edibles, the boundaries in public versus private consumption and what exactly a secure pot garden looks like.

There are some absolute rules, though, to be aware of if you partake in the new law. Here's what you should not do: