How many years is a USA b2 visa valid for?

A USA B2 visa, which is a non-immigrant tourist visa, is typically valid for up to 10 years for citizens of countries that are part of the Visa Waiver Program. However, the exact validity period can vary based on the applicant's nationality and the specific terms outlined by the U.S. embassy or consulate that issues the visa. It's important to note that even if the visa is valid for a longer period, each individual stay in the U.S. is usually limited to six months.