4) Regulations 2020 and the Health Protection (Coronavirus, International Travel and Restrictions) (Amendment) (Wales) Regulations 2020.
136)) (“y Rheoliadau Gwybodaeth Iechyd y Cyhoedd”) a Rheoliadau Diogelu Iechyd (Cyfyngiadau Coronafeirws) (Rhif 5) (Cymru) 2020 (O.S. 2020/1609 (Cy.