The Visa Waiver Program (VWP) allows citizens of countries designated by the U.S. government to visit the United States for up to 90 days without obtaining a visa.
To use this program, travelers must be citizens of a VWP member country, hold an e-passport, and obtain travel authorization in advance through the Electronic System for Travel Authorization (ESTA).
The program is available only for tourism, business, or transit purposes. Employment or long-term stays are not permitted.