Visa law USA

First of all, you should make sure that you have a valid passport. Normally, the visa is stuck into your passport so that you can enter or transit the country without any problems. Legally speaking, a visa is not a residence permit, which means that entry into the country is not guaranteed. This means that entry could be refused under certain circumstances, as entry and a residence permit are different things. A valid immigration permit or immigration visa is usually called a "green card".

If someone is in a situation where they do not have an immigrant visa but a US non-immigrant visa, they apply for the first time when attempting to enter the United States of America. Such a visa is available if you wish to enter the United States of America for tourism, study or work, for example. The immigration officials responsible at U.S. Customs and Border Protection (CBP) are the ones who approve the entry.

Normally, anyone wishing to enter the USA must apply for a visa. However, there are exceptions here too. For example, countries such as Germany, Austria and Switzerland participate in the "Visa Waiver Program", which allows you to enter the USA for up to 90 days without a visa. However, this only applies for certain entry purposes and not generally. Anyone who is unable to travel with the help of this program must apply for a visa. As this is a very time-consuming procedure, no time should be wasted here. The visa procedure is complex and time-consuming.