Mobile Passport app speeds you through U.S. Customs when entering the USA at 1 cruise port and 24 airports. Officially authorized by U.S. Customs and Border Protection, this app allows U.S. and Canadian passport holders (on B1 or B2 visas) to submit their passport control and customs declaration information via their iPhone or iPad and bypass the regular line to enter the United States. This app effectively replaces the traditional blue-and-white paper declaration form required of all travelers entering the U.S. by air or sea.