More informations maybe that can help. I did that with a french passport and that was the same for 2 foreigners with me (1 US and 1 UK passport). The English girl had a medical certificate from Thai hospital but they didn't care about this, they just asked her to stand front of the IR and fill the T8 form

This morning at Chiang Khong, they didn't ask certificate but you must fill T8 form and stand few seconds front of a big camera for check if you have fever.

He said we close at 10pm but when we came back, they closed already....

When we left Thailand we asked the officer what time the thai border close because we just go and come back.

All of this just for say, officer told me they will deliver VOA tomorrow at Chiang Khong (because at the begining they wanted let us wait here overnight....).

I passed Thai border at Chiang Khong without problem at 7.30pm and be at Huay Xai immigration at 7.40pm but they already closed the office for visa on arrival. Talked a bit with officers there and they reopen the visa on arrival just for us (we are 3). Should get the voa in few minutes and will go back to Thailand (Thailand side close at 10pm).

Anyone know about Ban Huak/Pong Mon border ? It's closer than Chiang Khong. I still hesitate to try there

@Jan *********

Tomorrow Laos stop VOA you will need a evisa for enter.

@Jake *******

So nice, I am on the way for Chiang Khong :D Feel less stressed now