visa waiver

https://esta.cbp.dhs.gov/faq?lang=es&focusedTopic=Sobre%20ESTA%20y%20el%20Visa%20Waiver%20Program&answerToDisplay=%C2%BFCu%C3%A1les%20son%20los%20requisitos%20de%20pasaporte%20para%20viajar%20bajo%20el%20Visa%20Waiver%20Program%3F...