Overview of the visitors visa
Visitor visas are nonimmigrant visas for persons who want to enter the United States temporarily for business (visa category B-1), for tourism (visa category B-2), or for a combination of both purposes (B-1/B-2).
Qualifications
Visa applicants must qualify on the basis of the applicant's residence and ties abroad, rather than assurances from U.S. family and friends. You must demonstrate to a consular officer that you qualify for a U.S. visa in accordance with the U.S. Immigration and Nationality Act (INA). Section 214(b) of the INA presumes that every B-1/B-2 applicant is an intending immigrant. *A letter of invitation or Affidavit of Support is not needed to apply for a visitor visa. If you choose to bring a letter of invitation or Affidavit of Support to your interview, please remember it is not one of the factors used in determining whether to issue or deny the visa.*
Business (B-1)
Consult with business associates
Attend a scientific, educational, professional, or business convention or conference
Settle an estate
Negotiate a contract
Tourism (B-2)
Tourism
Vacation (holiday)
Visit with friends or relatives
Medical treatment
Participation in social events hosted by fraternal, social, or service organizations
Participation by amateurs in musical, sports, or similar events or contests, if not being paid for participating
Enrollment in a short recreational course of study, not for credit toward a degree (for example, a two-day cooking class while on vacation)