O dan reoliad 4, mae’n ofynnol i Weinidogion Cymru adolygu’r angen am y gofynion a’r cyfyngiadau yn y rheoliadau, a’u cymesuredd, bob 21 o ddiwrnodau. Cynhelir adolygiad 21 diwrnod nesaf y rheoliadau erbyn 30 Gorffennaf.
Under regulation 4, Welsh Ministers are required to review the need for the requirements and restrictions in the regulations, and their proportionality, every 21 days. The next 21-day review of the regulations will take place by 30 July.