The approval letter is a document which is issued by the Vietnamese Immigration:

• It proves that you can get the visa stamp on arrival at one of 6 international airports in Vietnam.
• This letter is also used for boarding the airplane.
• This letter will show you the enter date and the exit date. It means that you should enter Vietnam from the entry day and leave Vietnam before the exit day.

Therefore, the approval letter is one of the most important documents that you have to have before entering Vietnam.

Through a few simple steps, you will easily get it:

Step 1: Completing the online application form by providing some necessary information such as your name, date of birth, the number and validity of your passport, the type of visa that you choose (the length of stay with multiple or single entry).

Step 2: Do the online payment.

Step 3: Wait for 48 hours to get the approval letter via email. In emergency, you can also get it earlier with the express service and pay for the extra fee.

In addition, this letter will show you a list of many applicants, you can require to make the private one if you want.

Take note:

With the approval letter, you can just enter Vietnam through 6 international airports:

• Noi Bai international airport in Hanoi city
• Tan Son Nhat international airport in Ho Chi Minh city
• Cam Ranh international airport in Nha Trang city
• Da Nang international airport in Da Nang city
• Cat Bi international airport in Hai Phong city
• Phu Quoc international airport in Phu Quoc island

In addition to the approval letter, you will be needing to prepare other required documents to submit at Visa On Arrival counter and get the visa stamp. It includes original passport, photos, entry and exit form. You should ask the travel agent to know detail about it.