The relaxation in entry requirements means that vaccinated international visitors will no longer have to take any pre-departure or on-arrival tests from the start of next month.
But they will still be required to register for a Thailand Pass and upload proof of vaccination and travel insurance.
Unvaccinated travellers will also no longer have to take a test on arrival in Thailand but will have to register for a Thailand Pass with proof of a five-day hotel booking and insurance.
Once in Thailand, they must go into quarantine for five days and take a PCR test on the fifth day of their stay.
Unvaccinated visitors can avoid quarantine if they upload a negative PCR test result taken within 72 hours of travel to Thailand.