Mae’r Rheoliadau yn cael eu hadolygu’n barhaus ac mae Llywodraeth Cymru yn trafod â llywodraeth y DU a’r gweinyddiaethau datganoledig eraill ynglŷn â diwygiadau posibl i’r Rheoliadau. Byddai’r diwygiadau hynny yn darparu, ar sail asesiad o’r risg, er mwyn i’r rheini sy’n cael eu derbyn yma o restr benodedig o wledydd gael eu heithrio rhag y gofynion ar gyfer hunanynysu, yn ogystal ag amrywiaeth o newidiadau posibl eraill a fyddai’n ymestyn ac yn ehangu’r categorïau o bersonau sydd wedi’u heithrio rhag gofynion y Rheoliadau.
The Regulations remain under constant review and the Welsh Government is in discussion with the UK government and the other devolved administrations about potential amendments to the Regulations which would provide, on the basis of an assessment of risk, for arrivals from a specified list of countries to be exempt from the requirements for self-isolation, as well as a range of other potential changes which would widen and extend the categories of persons exempt from the requirements of the Regulations.