This article includes lists of border crossings, ordered from west to east (north to south for Alaska crossings), along the International Boundary between Canada and the United States. Each port of entry (POE) in the tables below links to an article about that crossing. On the U.S. side, each crossing has a three-letter Port of Entry code. This code is also seen on passport entry stamp or parole stamp. The list of codes is administered by the Department of State. Note that one code may correspond to multiple crossings.