Oherwydd y bydd nifer cyfyngedig o bobl yn hunanynysu gartref ar ôl cyrraedd Cymru o wlad rhestr goch, gwneir diwygiadau i ganiatáu nifer cyfyngedig o resymau dros adael y man ynysu.
As a limited number of people will isolating at-home after arriving in Wales from a red-list country amendments are to be made to allow a limited number of reasons for a person to leave a place of isolation.