Daeth Rheoliadau Diogelu Iechyd (Coronafeirws, Teithio Rhyngwladol) (Cymru) 2020 i rym ar 8 Mehefin 2020. Yn unol â’r Rheoliadau, mae’n ofynnol i bersonau penodol sy’n cyrraedd porthladdoedd o’r tu allan i’r ardal deithio gyffredin (sef y Deyrnas Unedig, Ynysoedd y Sianel, Ynys Manaw, ac Iwerddon) ddarparu gwybodaeth ynglŷn â lle y byddant yn preswylio yn ystod eu cyfnod yng Nghymru ac ynysu am 14 diwrnod wedi iddynt gyrraedd.
The Health Protection (Coronavirus, International Travel) (Wales) Regulations 2020 were brought into force on 8 June 2020. The Regulations require certain persons arriving at ports from outside of the common travel area (which is the United Kingdom, the Channel Islands, the Isle of Man, and Ireland) to provide information about where they will reside when in Wales and to isolate for 14 days following arrival.