Trying to explain to your friends that it's legal in one state and illegal in the next one.

Trying to explain to your friends that it's legal in one state and illegal in the next one.

Federal law still classifies cannabis as illegal, which is why state laws can sit right next to each other and look completely opposite. Crossing a state line with cannabis — even between two legal states — is technically a federal offense, and that's the part most tourists don't realize until a friend asks. The simple rule for U.S. cannabis travel: buy where you are, consume where you are, leave it behind when you leave. The state-by-state legality map makes the rest of the explanation easy.