I've done searches but can't seem to find anything recent that answers this question.
If I leave from Chiang Mai and get a visa on arrival from Mae Sai (I've had two METV's so far), do I get a 30 day visa on arrival or 15 day? There is so much conflicting information because it looks like it changed to 15 and then went back to 30 but I want to reconfirm.
TLDR : Answer Summary
There is some confusion regarding the visa status for US passport holders entering Thailand from the Mae Sai border. As of now, US citizens receive a 30-day visa exempt entry when crossing the border from Myanmar, not a visa on arrival. However, there is a limitation that you can only obtain two 30-day visa exempt entries by land within each calendar year (January 1 - December 31). It’s important to check recent updates regarding immigration rules, as they can change frequently.