The Visa Waiver Program allows citizens of specific countries to come to the United States for a limited purpose. The 38 designated countries include: Andorra, Australia, Austria, Belgium, Brunei, Chile, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Monaco, Netherlands, New Zealand, Norway, Portugal, San Marino, Singapore, Slovakia, South Korea, Spain, Sweden, Switzerland, Taiwan, United Kingdom. Individuals from these countries complete an ESTA form prior to flying to the U.S. If admitted, they are allowed to stay for 90 days.