Visa Waiver
All mandatory fields must be completed. If erroneous information is entered this will not result in a mandatory denial, but may require manual adjudication (therefore additional time) prior to CBP providing a response back to the applicant.
Travel Not Authorized
A travel authorization is valid for two years after the application date or until the passport expiration date whichever happens 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.
If your ESTA has expired, you must reapply by submitting a new application.
Your ESTA must be valid when you enter the U.S., if it expires during your stay it will not affect your departure.