A Border Crossing Card (BCC) is an identity document used by nationals of Mexico to enter the United States. As a standalone document, the BCC allows its holder to visit the border areas of the United States when entering by land or sea directly from Mexico for up to 30 days.[1][2] The document also functions as a B1/B2 visa when presented with a valid Mexican passport, for entry to any part of the United States by any means of transportation.[3][4]