Coronavirus testing is taking place at a drive-thru centre in Cumbria.
The site in Penrith will open seven days a week and is operating on an appointment-only basis for NHS staff and other key workers.
Penrith Rugby Club has leased its car park free of charge for three months, as the government ramps up testing.
It comes as the British Medical Association said testing for healthcare staff should not be on a “first come, first served” basis, after slots offered to key workers ran out for the third day in a row.
More than 10 million essential workers and their households are now eligible for Covid-19 checks as officials race to hit their 100,000-a-day testing target.
NHS and social care staff, police officers, teachers, social workers, undertakers, journalists and those who work in supermarkets and food production are among those who are eligible.
Coronavirus: Everything you need to know