Exactly; when you enter the US, you do that first, with federal employees checking you through, THEN you enter the state.A big yes to that, especially considering the inconsistency of pot laws. For example, recreational cannabis is legal in California, but I would be willing to make a large wager that if a city in California is your point of entry into the US and you are found with marijuana at US immigration, you will still have a problem with the Feds.