What is the "Visa Authorization Letter"?

The "Visa Authorization Letter" is a letter issued by Vietnam Immigration Department  that allows you to enter and exit Vietnam for a given time period. With the Vietnam visa approval letter, you can pick up your visa upon arrival at one of the  three international airports in Vietnam (Hanoi, Ho Chi Minh City and Da Nang).

Note: "Vietnam Visa Authorization Letter" is usually issued in group and therefore, you may find your name, passport number and date of birth in the same letter as other people.