I'd asked the other day about Mae Sai border runs. Went today, had no issues. Do I need to update my TM30 in Chiang Mai tomorrow since it was same day exit/entry? It hadn't really occurred to me that I might need to til now.
TLDR : Answer Summary
A user inquired about whether they need to update their TM30 form in Chiang Mai after a same day exit and re-entry at the Mae Sai border. Commenters confirmed that an update is necessary due to the new TM6 Arrival/Departure card, as exiting the country requires updating the TM30. Some users mentioned having arrangements with their condo offices to handle the update efficiently, while others shared their experiences regarding the importance of keeping the TM30 updated even if they did not face any immediate issues during their previous travels.