it works with a filter: before boarding the plane, the system evaluates whether you meet all the requirements to enter the U.S., and everything is done online. There’s no need to go to the embassy or fill out any paperwork; you only need: * A valid electronic passport (the kind with an integrated chip). * A few minutes to fill out the application. * And pay a $21 fee. This authorization allows stays of up to 90 days for tourism, but it does not guarantee admission.The final decision will be made