Entering the United States
An approved ESTA (Electronic System for Travel Authorization) allows a citizen of a Visa Waiver Program participating country to travel to a U.S. port-of-entry (generally an airport) and request permission to enter the United States. An approved ESTA does not guarantee entry into the United States. The Department of Homeland Security (DHS), U.S. Customs and Border Protection (CBP) officials at the port-of-entry have authority to permit or deny admission to the United States.
If you are allowed to enter, the CBP official will place an admission stamp in your passport. Learn more on the CBP website.
Learn about admissions and entry requirements, as well as restrictions about bringing food, agricultural products, and other restricted/prohibited goods, by reviewing the CBP website under International Visitors and Clearing CBP.