Thailand plans to end Covid quarantine requirements for fully vaccinated travellers from at least 10 low-risk nations from 1 November, officials say.
PM Prayuth Chan-ocha admitted that "this decision comes with some risk" - but it is seen as a key step to revive the country's collapsed tourism sector.
The 10 nations seen as low risk include the UK, China, Germany and the US.
It has fully vaccinated around 33% of its almost 70 million people. Half the population has received one dose.
Mr Prayuth said Thailand would also allow entertainment venues to reopen on 1 December and permit alcohol sales.
He added that the authorities were planning to open Thailand for more countries on that date.
Referring to visitors from 10 low-risk nations, he stressed that "when they arrive, they should present a [negative] Covid test... and test once again upon arrival".
If the second test is also negative, any visitor from those countries "can travel freely like Thais", the prime minister said.