From June 1, unvaccinated or partially vaccinated travellers can produce a negative rapid antigen or RT-PCR test taken within 72 hours of departure. Those failing to do so will be put in quarantine until a test result is released. Also, Thai travellers will no longer be required to register for Thailand Pass tomorrow, though registration is still required for foreigners, who must also provide proof of US$10,000 Covid-19 insurance.

Source: The Nation Bangkok May 31, 2022 09:24 UTC