Indoor performances with socially distanced audiences can take place in England from the start of August, the prime minister has said.
The government is working with the sector on pilots of performances with socially distanced audiences in theatres and music venues.
Boris Johnson said the findings would feed into final guidance for venues in the run-up to them reopening.
But the head of Theatres Trust said the move “will not be economically viable”.
Although Jon Morgan, director of Theatres Trust welcomed the news as “a step in the right direction”, but he said that “for most theatres it will not be economically viable to reopen with 30-40% audience required under social distancing”.
“We now need to progress as quickly as