: While you don't need to print the authorization (it is electronically linked to your passport), keeping a copy of your application number is useful for checking status or updating travel details.
: If your ESTA is denied, you must apply for a non-immigrant visa at a U.S. Embassy or Consulate. : While you don't need to print the
: The application includes questions about criminal history and previous travel to certain countries; answering "yes" to these may require a standard visa application instead. : While you don't need to print the
: You will need a valid electronic passport (e-passport) from a participating VWP country, a valid credit card or PayPal for the fee, and your contact information. Important Considerations : While you don't need to print the
: The current application fee is $21 when applied for directly through the official site.