All international visitors, regardless of country of origin, must present a valid passport or secure document when entering the United States, including Hawaiʻi. The Visa Waiver Program enables nationals of 38 participating countries to travel to the United States for tourism or business (visitor [B] visa purposes only) for stays of 90 days or less without obtaining a visa. All travelers entering under this program are required to have a valid authorization through the Electronic System for Travel Authorization (ESTA) prior to travel. Please ensure you have completed your ESTA before you travel.