PassportMCP

Mobile Passport Control (MPC) is the official U.S. Customs and Border Protection (CBP) app streamlining U.S. entry by allowing travelers to submit passport and customs declarations digitally.

MPC is a free, secure CBP application designed to expedite the inspection process at U.S. ports of entry. Eligible travelers—including U.S. Citizens, Lawful Permanent Residents, and certain Canadian B1/B2 visitors—use the app to submit their travel document information and customs declaration questions electronically before speaking to an officer. This process eliminates the need for paper forms and APC kiosks, providing users with a designated, faster processing queue. Currently operational at over 30 major U.S. airports and seaports, MPC significantly reduces overall wait times and congestion during arrival.

https://www.cbp.gov/travel/us-citizens/mobile-passport-control