On the U.S. side, A-15 becomes Interstate-87 or "The Northway" as it is known in northern New York State. South of Albany, I-87 is known as "The Thruway".
===Crossing the Border===
Don't panic! Just because a border guard treats you like a scumbag doesn't mean you are one. Armed with this attitude try and maintain your dignity and self-confidence throughout the encounter and the guard will more likely respect you (even if he or she doesn't show it). Trust me, things will go more smoothly. If you're passing the border inside a car, don't volunteer the fact that you are a hitchhiker. But if it becomes obvious, don't try and deny it, either. Remember, there's no shame in hitching.
==Passports for U.S. and Canadian citizens==
U.S. and Canadian citizens are NOT required to show a passport. At least not yet. That doesn't mean a border guard won't ask to see one, though. But, a border guard is not supposed to deny you just because you don't have a passport. Until January of 2008, border guards are supposed to continue accepting "oral declarations of citizenship" which basically means, "you have to believe me because I told you so."
If you are a U.S. citizen going into Canada or a Canadian going into the U.S., a guard can deny you entry for a number of reasons (usually because of a criminal record or you don't look like you have enough money for lunch at a fast-food restaurant). But don't think that just 'cause you don't own a passport you can't cross. You can.
==Champlain-Lacolle==