#SootinClaimon.Com : ขอบคุณแหล่งข้อมูล : หนังสือพิมพ์ The Nation.
https://www.nationthailand.com/in-focus/40006495
Phuket announced on Tuesday that all entrances to the island, including the Tha Chat Chai checkpoint, will be open to fully vaccinated people from October onwards.

As for those who have contracted the virus before, they must provide a certificate showing they tested negative in an RT-PCR test or at least an antigen test. The certificate can be no more than seven days old. These certificates will be required at all entrance points.
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Published : September 22, 2021