Maha Sarakham Immigration now wants the TM 30 done same day as you arrive back in province for any reason. I asked about within 24 hrs, he laughed and said next time you should come to see me the day you arrive. Also the immigration poli e at this office take very long irregular lunches, so plan to go earlier and might take longer than it used to.
TLDR : Answer Summary
Maha Sarakham Immigration has updated their policy to require that the TM 30 form be submitted on the same day of re-entry into the province. The immigration officer stated that reporting within 24 hours is no longer acceptable, indicating a stricter enforcement of this rule. Additionally, there are irregular lunch hours at the immigration office, which may lead to longer wait times, so visitors are advised to arrive early.