U.S. Customs Form: CBP Form 823S – SENTRI Application

U.S. Customs Form 823S is an application to the agency’s SENTRI program which expedites border crossing for people living in Mexico who commute to the United States to work.  The program is available at certain southern border crossings and can make life a lot easier for somebody who needs to go through U.S. Customs every day. Read more about the program on U.S. Customs official SENTRI page.