The test to release is for people who need to quarantine on arrival in the UK. You may be able to end quarantine early through the Test to Release certificate if you tested for the Covid-19. Test to Release testing is available for travelers returning from international travel, with next-day results at NX Healthcare. Order your Covid test at 020 8168 7100 or visit the website https://www.nxhealthcare.co.uk/product/day-2-8-covid-test/