The landing visa counter at international airports of Vietnam open 24/7 for your visa on arrival.
Please remember to print a copy of your approval letter and bring it with you for your trip to Vietnam.
Citizens of ALL COUNTRIES in the worlds are eligible to apply for Visa On Arrival Vietnam. Unlike Visa On Arrival of some countries, Visa On Arrival Vietnam required applicant obtain a visa approval letter (also called pre-approval letter) before flying to Vietnam to pick up their visa upon arrival at the airports.
In most cases, a passport scan is not required. However, sometimes the Immigration Officers need to verify the information you provide, you are required to send them a scan copy of your passport.
For getting visa on arrival, aside with the visa approval letter, you are required to fill, sign and attached a recently taken photo of your face on the form NA1. See Photo guide.