Beginning August 25, 2016, the Vietnamese government implemented new visa regulations for United States citizens visiting Vietnam. Under the new rules, U.S. citizens will receive a single-entry, 1-year multiple-entry visa with a stamping fee of $135 per person. Previously, 1-month and 3-month visas were available. The new 1-year multiple entry visa allows tourists to stay up to 3 months per visit and business travelers to stay up to 1 year. Passports must be valid for at least 1 year to qualify for a visa.