Mae Rheoliadau Diogelu Iechyd (Cyfyngiadau Coronafeirws) (Rhif 4) (Cymru) 2020 yn gosod cyfres o gyfyngiadau ar gynulliadau, symudiad pobl a’r modd y caiff busnesau weithredu. Fe’i cynlluniwyd i ddiogelu pobl rhag lledaeniad coronafeirws syndrom anadlol acíwt difrifol 2 (SARS-CoV-2).
The Health Protection (Coronavirus Restrictions) (No. 4) (Wales) Regulations 2020 place a series of restrictions on gatherings, the movement of people, and the operation of businesses. They are designed to protect people from the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).