Travellers to England who gain early release from isolation through a negative coronavirus test result under the Test to Release system must complete that isolation period if they then travel to Wales, says the Welsh Government EARLY release from isolation for people arriving in England under the UK Government s new Test to Release system will not apply if they then enter Wales, except in limited circumstances. People coming into Wales from England after early release from isolation under Test to Release must still complete any outstanding isolation period while here, unless entering for a specified purpose and for no longer than necessary , says the Welsh Government.