For information only,,,, Nackon Si Thammarat immigration do NOT require a TM30 if you holiday in country ,,, (Only required if you travel outside Thailand)
TLDR : Answer Summary
The message states that Nakhon Si Thammarat immigration does not require a TM30 for holidays within Thailand unless traveling outside the country. However, comments indicate that enforcement may vary by location, with some needing the TM30 upon re-entry from traveling domestically or internationally.