Rhaid i deithwyr sy'n cyrraedd o wledydd nad ydynt ar restr Coridor Teithio Llywodraeth Cymru barhau i hunanynysu am 10 diwrnod waeth beth fo canlyniad eu prawf cyn gadael, er mwyn darparu amddiffyniad pellach rhag y rheini sy'n teithio o wledydd risg uchel.
Passengers arriving from countries not on the Welsh Government’s Travel Corridor list must continue to self-isolate for 10 days, regardless of their pre-departure test result, to provide further robust protection from those travelling from high-risk countries.