The Visa Waiver Program allows nationals of 38 countries to travel to the United States for tourism or business without a visa. The program requires visitors to have a valid passport and be in possession of a Visa Waiver Form I-94, which is available from most U.S.
Customs and Border Protection (CBP) offices. The form is usually valid for one year, but may be extended up to six months if the visitor has a valid travel document from their home country that shows they are still allowed to stay in the country. .
Visitors who do not have a valid passport or I-94 may be able to use a temporary travel document, such as an Employment Authorization Document (EAD), if they meet certain requirements. Nationals of countries not included in the Visa Waiver Program must obtain a visa before traveling to the United States.
There are strict limits on how many times an individual can check visa slots in a day. Generally, individuals are allowed two visits to CBP offices per day, each of which is limited to one hour.
This means that an individual can only check visa slots for a total of two hours per day.
