If you are not a citizen of the U.S. and like to enter the U.S. you need to get permission, called a visa. You have to apply for a visa. However obtaining a visa does not mean that you have been granted permission to enter into the U.S. You can only request the immigration officer at the port of entry to allow you to enter into U.S. Only the immigration officer can decide your entry into the U.S.

There are several types of visas issued to the applicants seeking visa to enter into the U.S. by the US Government depends upon the requirements of the applicants.

Citizens of some countries like Canada, Mexico, Bermuda etc are permitted to travel in the U.S. without a visa under Visa Waiver Program, provided they should fulfill certain conditions.

For others:

There are two categories of visas issued.

They are Immigrant visas and non-immigrant visas.

The visitors who like to stay temporarily in the U.S. have to obtain non-immigrant visas and those who like to live permanently in the U.S. have to obtain Immigrant visas.

Non-Immigrant Visa:

First of all People who apply for non-immigrant visas have to prove that they dont have an intention to stay in the U.S. permanently. They can apply for non-immigrant visa for the purpose of studies, medical treatment, tourism, temporary work or business.

The consulate officers or consulates can only decide the eligibility of an applicant to issue a visa based on merits of the applicants.

As different people apply for non-immigrant visas for various purposes, they will be asked to produce different documents by the consulate according to the purpose of their visit.

Permanent Visa:

To obtain a permanent visa the applicant should be sponsored either by his U.S. Citizen Relative or his Employer.

Family-Based Immigration: The migrant can apply for a permanent visa, based on relationship to a U.S. citizen or legal permanent resident.

Employment Based Visa: The applicant should obtain a job offer and his U.S. employer must file a petition on behalf of the applicant.




About the Author
I'm V.Anantha Krishnan, webmaster of this website www.usaimmigrationguide.com I update the information about U.S. Immigration and related topics regularly.

Please visit my website http://www.usaimmigrationguide.com to get more detaills.