More information about the Visa Waiver Program can be found on the CBP website and the Department of State website.
More information about the Visa Waiver Program can be found on the CBP website and the Department of State website.
A travel authorizations are valid for two years from the date of authorization, or until your passport expires, whichever comes first.
If you obtain a new passport or change your name, gender or country of citizenship, you will be required to apply for a new travel authorization. This is also required if one of your answers to any of the VWP eligibility questions changes.
If your ESTA has expired, you must reapply by submitting a new application.
If your ESTA expires while in the U.S. it will not affect your departure.