CBP officials have the ability to instantly check the person seeking entry against several "lookout" databases using the Interagency Border Inspection System.
operating system | Super Nintendo Entertainment System | Nintendo Entertainment System | Android (operating system) | Global Positioning System | Solar System | X Window System | Border Union Railway | Border Counties Railway | Korean Broadcasting System | System of a Down | Domain Name System | Seoul Broadcasting System | North Carolina Community College System | border | Mutual Broadcasting System | Bulletin board system | system | Turner Broadcasting System | Program and System Information Protocol | Geographic information system | Ubuntu (operating system) | Tokyo Broadcasting System | Federal Reserve System | border crossing | Youth system | United States Border Patrol | Embedded system | Canada–United States border | solar system |