How long is the U.S. tourist visa valid?

The validity period of the U.S. visa is as follows:

1. Business tourist visa: The U.S. tourist business visa is valid for one year from the day the visa is obtained, and can be returned multiple times within a year.

2. Study visa: The U.S. Type F study visa is valid for one year.

3. Work visa: The validity period of a work visa is generally 3 years and can be extended once. The validity period of other seasonal labor visas is determined according to needs.

4. Special Talent Visa: The O visa is generally valid for one year and can be extended once a year.