Entering the United States

Visa Waiver Program

Under the Visa Waiver Program (VWP), citizens of certain countries may travel to the United States for tourism or business purposes--for stays of 90 days or less—without obtaining a visa.  Please note that there are certain passport requirements when using the VWP.
   Visa Waiver Program
   Passport Information for VWP

Electronic System for Travel Authorization

Anyone traveling under the Visa Waiver Program may apply for "Travel Authorization" online using the the Electronic System for Travel Authorization (ESTA). You must apply for "Travel Authorization" at least 72 hours before you travel to the United States.
  Electronic System for Travel Authorization Process

US-VISIT (United States Visitor and Immigrant Status Indicator Technology)

Records the entry and exit of travelers to the United States by collecting biographic information and biometrics, i.e., digital fingerprints and photographs. The Department of Homeland Security explains the purpose of US-VISIT and what to expect when you arrive in the U.S.
   US-VISIT

U.S. Customs and Border Protection (CBP)

Information about ports of entry, admission to the U.S., and what items to declare at customs.
  CBP Website

Department of Homeland Security's Travel Redress Inquiry Program (DHS TRIP)

DHS TRIP is a central point of contact for international travelers "who experience repeated referrals for security screenings or who believe that they have been denied boarding or entry into the United States because of inaccurate or incorrect information."
  DHS TRIP Website